JP2015020759A - Liquid supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid supply device capable of sharply shortening time until the inside of a tank which is a supply destination of liquid becomes an airless state.SOLUTION: A water server 1 which is a kind of a liquid supply device is constituted so as to sequentially supply drinking water from a bag 4 which contains the drinking water to a cold water tank 5 installed at a lower part of the bag 4 and a warm water tank 6 installed at a further lower part of the cold water tank 5, and comprises: a communication pipe 102 which straightly communicates the vicinity of an apex inside the cold water tank 5 with the inside of the warm water tank 6, and in which a lower end in the warm water tank 6 is provided with a fluid element 62''; and a discharge pipe 63 which further discharges the air or the drinking water discharged from the cold water tank 5 to the inside of the warm water tank 6 via the communication pipe 102 from the vicinity of the apex of the warm water tank 6 when the drinking water is supplied from the bag 4 to the cold water tank 5 via a needle 8 by relatively moving the needle 8 to the bag 4 and piercing the bag 4.

Description

  The present invention relates to a liquid supply apparatus, for example, from a first container that can be deformed to be reduced as the liquid filled therein decreases, a second container installed below the first container, and the second container. The present invention relates to a liquid supply apparatus configured to sequentially supply to a third container installed further below the container.

  When the drinking water is sent from a water bottle containing drinking water to a cold water tank installed below the water bottle and a hot water tank installed further below the cold water tank, these water bottles and cold water are supplied. Various so-called airless water servers have been developed that make it difficult for the drinking water and the air to come into contact with each other in the tank or hot water tank, particularly in consideration of hygiene. As a container for the water server, a container such as a glass bottle or a plastic bottle is not deformed even if the drinking water is reduced by taking out the drinking water filled inside by gravity alone. It was used. In that case, as a result of air being mixed into the container by replacing the reduced amount of drinking water with the outside air, the germs originally contained in the air propagate in the container and preserve the drinking water. It was the main cause of damaging sex.

  On the other hand, a bag made of a plurality of synthetic resin films is disclosed as a container that can be reduced and deformed as the drinking water filled therein decreases (see, for example, Patent Document 1). In this bag body, it is preferable not to provide any spout or the like mainly for consideration of hygiene, cost reduction and prevention of leakage during transportation. In that case, when the drinking water is taken out from the inside of the bag body, it is necessary to make a hole in the bag body with a needle or the like.

  On the other hand, as shown by the solid line in FIG. 8A, a hole 42a is opened in the bottom surface 41a of a plastic bag (a kind of the bag body) 4a containing drinking water, and the drinking water is placed below the bag body 4a. A water server provided with a needle 8a to be sent to a storage tank (not shown) installed is disclosed (for example, see Patent Document 2). When the plastic bag 4a is above the needle 8a, the needle 8a automatically protrudes upward due to the weight of the drinking water in the plastic bag 4a and the tip of the needle 8a has a hole 42a in the bottom surface 41a of the plastic bag 4a. Can be opened.

  However, in the needle 8a of Patent Document 2 above, the hole 42a is opened in the bottom surface 41a of the plastic bag 4a containing drinking water, and at the same time, the tension acting to reduce the plastic bag 4a and the gravity applied to the drinking water are combined. As a result, the drinking water inside is taken out into the storage tank through the needle 8a. And when the drinking water in the plastic bag 4a decreases, as shown by the two-dot chain line in FIG. 8A, the tip of the needle 8a protruding on the bottom surface 41a of the reduced-sized plastic bag 4a ′ becomes an obstacle, It becomes difficult to take out the beverage liquid 40a 'above the needle 8a.

  Further, when the used plastic bag 4a ′ is lifted in order to replace the used plastic bag 4a ′ with a new one, the needle 8a is automatically accommodated downward, and the needle 8a is transferred from the plastic bag 4a ′. In this case, the residual liquid 40a ′ may leak out from the hole 42a opened in the bottom surface 41a of the plastic bag 4a ′. Accordingly, there has been a demand for reducing the residual liquid 40a 'as much as possible.

  Furthermore, at the start of use of the water server, only air is contained in the cold water tank and the hot water tank, and this air needs to be discharged out of the cold water tank and the hot water tank. For this reason, for example, in Patent Document 3, an exhaust valve that is manually operated as an exhaust means is provided in the upper part of the cold water tank, and when the air is discharged from the exhaust valve to the outside of the cold water tank, the discharged air is filled. Thus, a configuration in which drinking water flows down to a cold water tank is disclosed.

  According to Patent Document 3, it is troublesome to manually operate the exhaust valve, and the operation may be forgotten. Further, when the exhaust valve of the cold water tank stops functioning due to a failure or the like, drinking water may continue to leak from the exhaust valve. Furthermore, since the exhaust valve has a movable part, there is a problem that regular maintenance is required so that the movable part functions reliably.

  Therefore, for example, in Patent Document 4, as shown in FIG. 28, a cold water tank 5a to which drinking water W is supplied from a water bottle 4a via a needle 8a and the like is provided, and the cold water tank 5a is supplied from the cold water tank 5a. In the water server in which the discharge pipe 51a is pulled out and the drinking water W in the cold water tank 5a can be discharged to the outside of the cold water tank 5a through the discharge pipe 51a, the discharge pipe 51a goes into the cold water tank 5a. There is disclosed a main pipe part 51c having an opening 51b and a guide pipe part 53a that branches from the main pipe part 51c in the cold water tank 5 and faces the upper part in the tank 5a.

  According to the above-mentioned patent document 4, when air A is interposed in the upper part of the cold water tank 5a, if the internal drinking water W is discharged to the outside through the discharge pipe 51a, the inside of the main pipe portion 51c of the discharge pipe 51a is drinking water. A phenomenon occurs in which the air A intervening in the upper part of the cold water tank 5a is drawn to the main pipe part 51c side through the guide pipe part 53a due to the movement of the drinking water W in the main pipe part 51c. Thereby, the air A interposed in the upper part of the cold water tank 5a can be discharged | emitted out of the cold water tank 5a with the drinking water W of the cold water tank 5a. As a result, in the cold water tank 5a, it is possible to reduce the chance that the drinking water W and the air A are in contact with each other, and the exhaust means provided in the cold water tank 5a can be reduced in failure and require less maintenance. , And is described.

  However, in Patent Document 4, when the liquid level in the cold water tank 5a is low, the drinking water W becomes difficult to move in the main pipe portion 51c of the discharge pipe 51a, and the flow of the drinking water W in the main pipe portion 51c The phenomenon that the air A intervening in the upper part of the cold water tank 5a is drawn to the main pipe part 51c side through the guide pipe part 53a is less likely to occur. As a result, the air A accumulated in the cold water tank 5a is hardly exhausted to the outside.

  This does not correspond to the case where the most air needs to be discharged (at the time of initial air discharge), such as when the water server starts to be used, and it takes a long time until the inside of the cold water tank 5a becomes airless. There is a bug. Although not shown, the hot water tank installed further below the cold water tank 5a has the same problem as described above.

  Further, in Patent Documents 3 and 4, when the airless structure of the container is adopted, the water bottle or the cold water tank is slightly decompressed in order to extract air from the water bottle or the cold water tank. Also, the pressure is slightly reduced. In the hot water tank under this reduced pressure, hot water heated to about 80 to 90 ° C. boiled, and there was a possibility that the boiled hot water would flow backward through the water supply pipe and enter the water bottle or the cold water tank. As a result, the cooling efficiency particularly in the cold water tank is lowered, and in this case, there is a problem that it is against the demand for energy saving.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a liquid supply apparatus that can significantly reduce the time until the inside of the container is in an airless state.

  According to the present invention, a first container that can be deformed by contraction as the liquid filled therein decreases, a second container disposed below the first container, and a liquid disposed further below the second container. A liquid supply device configured to sequentially supply to the third container, wherein the vicinity of the top of the second container and the third container communicate with each other in a straight line. At the open end, a communicating tube provided with a fluid element that increases the line resistance when air or liquid flows backward than when supplied, and the needle is moved relative to the first container to pierce the liquid through the needle. A discharge pipe for discharging air or liquid discharged from the second container into the third container through the fluid element of the communication pipe from the vicinity of the top of the third container when supplied to the second container; It is characterized by having Than is.

  According to the present invention, the vicinity of the top of the second container and the third container communicate with each other in a straight line, and at the open end in the third container, the line resistance is greater than that at the time of backflow of air or liquid. A communication element provided with a fluid element that enlarges the fluid, and when the liquid is supplied to the second container through the needle by relatively moving the needle into the first container, the fluid element of the communication pipe And a discharge pipe for discharging air or liquid discharged from the second container into the third container from the vicinity of the top of the third container, so that the liquid is discharged from the first container into the second container. When supplied, the air in the second container is compressed, the compressed air is discharged into the third container through the fluid element of the communication pipe, and the air discharged into the third container Is discharged from the third container to the outside through the discharge pipe. As a result, the liquid is filled in the second container, and the liquid filled in the second container is discharged into the third container through the fluid element of the communication pipe. Filled with liquid. As a result, particularly when the initial air is discharged, the time until the second container and the third container become airless can be greatly reduced.

  In addition, since a fluid element is provided at the open end in the third container so that the line resistance is larger than that at the time of supply when air or liquid flows backward, the air or liquid from the first container or the second container is third. Since it becomes easy to be supplied to a container and it becomes difficult to flow backward, like the said patent documents 3 and 4, the heating efficiency and cooling efficiency in a 2nd container do not fall, and it responds to the request | requirement of energy saving. Here, the reason why the fluid element is provided at the open end in the third container is to secure the installation space.

  Further, unlike the case where a backflow prevention valve is provided in the supply line, the backflow prevention valve becomes a resistance and does not hinder the flow of the liquid, and the maintenance thereof becomes unnecessary. Further, as in the case where a coil part, a U-seal part, etc. are provided in the supply line, the coil part, the U-seal part, etc. become resistance and do not hinder the flow of liquid, and air stays there. Nothing will happen. Therefore, even when the airless structure is adopted, it is possible to always stably supply liquid by suppressing the backflow of the liquid from the third container to the first container or the second container.

  The fluid element includes a cylindrical main body, a first nozzle connected in a tangential direction on a peripheral surface of the main body, and a second nozzle connected in a central axis direction on one end surface of the main body. A vortex diode is preferred.

  In this case, the fluid element includes a cylindrical main body, a first nozzle connected in a tangential direction on a peripheral surface of the main body, and a second nozzle connected in a central axis direction on one end surface of the main body. Since this is a vortex diode, the line resistance is increased when liquid is flowing backward than when it is supplied. Thereby, even when an airless structure is employed, the liquid backflow from the third container to the first container or the second container can be reliably suppressed, and more stable liquid supply can be performed.

  Here, depending on the arrangement posture of the vortex diode, a part of the air that has passed first remains in the main body, and then the liquid flows in from the second nozzle and then passes through the main body, A phenomenon may occur in which the flow of liquid in the vortex diode becomes unstable. Therefore, it is preferable that at least one end surface of the main body of the vortex diode and the first nozzle are laterally arranged and the second nozzle is directed upward.

  In this case, since at least one end surface of the main body of the vortex diode and the first nozzle are disposed sideways and the second nozzle is directed upward, a part of the air that has passed previously remains in the main body. It becomes difficult to prevent the liquid from subsequently flowing into the second nozzle and passing through the main body. As a result, it is possible to reliably prevent the occurrence of a phenomenon that makes the liquid flow in the vortex diode unstable.

  The vortex diode preferably includes a guide fin configured to guide the liquid to the first nozzle side during the supply and not to guide the liquid to the second nozzle side during the back flow.

  In this case, the vortex diode includes a guide fin configured to guide the liquid to the first nozzle side during the supply, but not to guide the liquid to the second nozzle side during the backflow. The liquid backflow to the first container or the second container can be more reliably suppressed, and more stable liquid supply can be performed.

  Moreover, it is preferable that the said guide fin is curving along the flow direction of the liquid assumed at the time of the said supply.

  In this case, since the guide fin is curved so as to follow the flow direction of the liquid assumed at the time of the supply, the backflow of the liquid from the third container to the first container or the second container is more reliably suppressed. Thus, more stable liquid supply can be performed.

  In addition, it is preferable that a plurality of the first nozzles be arranged so as to be point-symmetric about the second nozzle.

  In this case, since a plurality of the first nozzles are arranged so as to be point-symmetric about the second nozzle, the flow of air or liquid in the third tank is not easily biased.

(First and second embodiments 1 and 2)
According to the first aspect of the first invention, a first container that can be deformed by contraction as the liquid filled therein decreases, a second container that is placed below the first container, and a second container of the second container. Further, a container air vent structure configured to sequentially supply to a third container installed at a lower position, wherein the top portion in the second container and the third container communicate with each other in a descending manner. When the liquid is supplied to the second container via the needle by piercing the first container with the pipe and the first container set at a predetermined position, A discharge pipe for discharging air or liquid discharged from the second container into the third container from the vicinity of the top of the third container, and the liquid is supplied from the first container into the second container. And the air in the second container is compressed. Air is discharged into the third container through the communication pipe, and the air discharged into the third container is discharged from the third container to the outside through the discharge pipe. The liquid is filled in the second container, and the liquid filled in the second container is discharged into the third container through the communication pipe, whereby the third container is filled with the liquid. It is a feature.

  In this case, a needle is inserted into the first container in a state where the vicinity of the top of the second container and the third container communicate with each other in a descending manner and the first container is set at a predetermined position. Accordingly, when the liquid is supplied through the needle, the air or liquid discharged from the second container into the third container through the communication pipe is discharged from the vicinity of the top of the third container. When the liquid is supplied from the first container into the second container, the air in the second container is compressed, and the compressed air is introduced into the third container through the communication pipe. Air is discharged, and the air discharged into the third container is discharged from the third container to the outside through the discharge pipe, so that the liquid is filled in the second container, and the second container is filled. The discharged liquid is discharged into the third container through the communication pipe. Liquid is filled into the third container by. As a result, particularly when the initial air is discharged, the time until the second container and the third container become airless can be greatly reduced.

  Moreover, it is preferable to comprise so that the said needle may be stabbed in the direction which becomes parallel or parallel to this bottom face near the bottom face of said 1st container.

  In this case, since the needle is pierced in the vicinity of the bottom surface of the first container in a direction parallel to or downward from the bottom surface, as shown by the solid line in FIG. The hole 42b is opened in a direction parallel to the bottom surface 41b or in a downward direction, and at the same time, the tension acting in the direction of contracting the container 4b and the gravity acting on the liquid act together, so that the liquid inside the needle 42 It is taken out through 8b.

  When the liquid in the container 4b decreases, the container 4b contracts and deforms. At this time, as shown by a two-dot chain line in FIG. 8B, the tip of the needle 8b does not get in the way. Most of the liquid in 4b 'can be taken out. When the liquid contained in the container 4b ′ is used up, as shown by the two-dot chain line in FIG. 8B, the container 4b ′ sticks around the needle 8b, and from the used container 4b ′ to the needle 8b. When removing the residual liquid 40b ', the residual liquid 40b' is less likely to leak from the hole 42b opened in the container 4b '.

  Further, the needle includes a needle body having a spire-shaped tip portion, and a needle guide having a guide portion for guiding the needle body, the tip portion of the needle body along the guide portion of the needle guide, It is preferable to configure so as to appear and disappear by manual operation or automatically.

  In this case, the needle includes a needle body having a spire-shaped tip portion, and a needle guide having a guide portion for guiding the needle body, and the tip portion of the needle body is provided along the guide portion of the needle guide. Since it is configured so that it can be manually operated or automatically infested, the needle can be easily pierced in a direction parallel to or downward from the bottom surface of the container 4b filled with the liquid, and the container from which the liquid is used up The needle can be easily pulled out.

  The guide portion of the needle guide is preferably straight.

  In this case, since the guide part of the needle guide is straight, the needle body can be reliably pierced by pushing the tip of the needle body into the container.

  Alternatively, the guide portion of the needle guide is preferably spiral.

  In this case, since the guide part of the needle guide is spiral, the needle body can be reliably pierced by screwing the tip of the needle body into the container.

  Further, it is preferable to provide a step portion which is asymmetric in the direction perpendicular to the axis at the tip of the needle body.

  In this case, since the step portion which is asymmetric in the direction perpendicular to the axis is provided at the distal end portion of the needle body, the distal end portion of the needle body can be further pierced into the container.

  Moreover, it is preferable that a spiral rib is attached to at least the tip of the needle body.

  In this case, since the spiral rib is attached to at least the distal end portion of the needle body, the distal end portion of the needle body can be more reliably pierced into the container.

  And a blocking mechanism that prevents the tip of the needle main body from being moved up and down manually or automatically along the guide portion of the needle guide. It is preferable that the blocking mechanism is released on manual operation.

  In this case, it is provided with a blocking mechanism for preventing the tip portion of the needle body from appearing and retracting manually or automatically along the guide portion of the needle guide. Since the condition is that the blocking mechanism has been released by manual operation, there is no possibility that the tip of the needle body will appear and disappear without permission.

  In addition, a support portion for supporting the first container is provided, and the first support portion projects the side facing the portion so that the portion that pierces the needle of the supported first container can be restrained. Preferably formed.

  In this case, a support portion for supporting the first container is provided, and the first support portion projects the side of the supported first container that faces the portion so that the portion that pierces the needle can be restrained. When the first container filled with drinking water is supported in a substantially standing posture by the support portion, the first container is deformed by its own weight, and at least a state of being in close contact with the protruding portion can be obtained. In this way, by piercing the needle into the first container supported by the support portion, it is possible to surely open a hole at that site.

  Further, it is preferable that a convex portion is formed near the top portion in the second container, and that the upper end of the communication pipe is opened in the convex portion.

  In this case, since the convex portion is formed near the top in the second container and the upper end of the communication pipe is opened in the convex portion, the air in the second container is collected in the convex portion and communicated. It becomes easy to be discharged from the pipe.

  Moreover, it is preferable to comprise so that the liquid from said 1st container may be supplied in the said convex part.

  In this case, since the liquid from the first container is supplied into the convex portion, the nozzle arrangement near the top of the second container is facilitated.

  Moreover, it is preferable to provide a notch in the site | part which removed the liquid supply side of the upper end of the said communicating pipe.

  In this case, since the notched portion is provided at a portion of the upper end of the communication pipe where the liquid supply side is removed, the supply of the liquid from the first container to the convex portion is not hindered, and the first through the communication pipe. It becomes easier to discharge air from the second container into the third container.

  By the way, even after the initial air is discharged, it is conceivable that air enters the container for some reason. In this regard, in Patent Document 4, in FIG. 28, when the liquid level in the cold water tank 5a becomes somewhat high, the drinking water W moves in the main pipe portion 51c of the discharge pipe 51a, and the drinking water W in the main pipe portion 51c. Although the phenomenon that the air A intervening in the upper part of the cold water tank 5a is drawn to the main pipe part 51c side through the guide pipe part 53a occurs due to the flow of the drinking water W is eventually drawn from the guide pipe part 53a to the main pipe part 51c side. A phenomenon will also occur. Then, the relatively cold drinking water W near the bottom of the cold water tank 5a is heated while the relatively warm air A and the drinking water W thereabove are sucked by the guide pipe portion 53a in the cold water tank 5a. As a result, the cooling efficiency is lowered, which is against the demand for energy saving.

  Therefore, it is preferable to provide a drain pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container.

  In this case, since the drainage pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container is provided at the lower end, particularly when the second container is a cold water tank, Since the cold drinking water can be discharged out of the cold water tank without being mixed with the relatively warm drinking water near the top, the cooling efficiency can be improved.

  Alternatively, a drain pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container, and an exhaust pipe for discharging the air in the second container from the vicinity of the top of the second container through the throttle portion. It is preferable to provide a connecting portion for connecting the exhaust pipe to the drain pipe.

  In this case, a drain pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container, and an exhaust for discharging the air in the second container from the vicinity of the top of the second container through the throttle portion. And a connecting portion for connecting the exhaust pipe to the drainage pipe is provided, which makes it difficult to suck the liquid near the top of the second container from the exhaust pipe. Therefore, especially when the second container is a cold water tank, the relatively cool drinking water near the bottom can be discharged outside the cold water tank without mixing with the relatively warm drinking water near the top, thus improving the cooling efficiency. Can be achieved.

  Moreover, it is preferable that the said throttle part is an orifice.

  In this case, since the throttle portion is an orifice, it has a simple configuration and is advantageous in terms of cost.

  Here, if the orifice is provided in such a posture that the axial center of the hole is in the horizontal direction, a part of the air that has passed first stays around the hole of the orifice, and then the liquid passes through the hole of the orifice. This may cause a phenomenon in which the resistance loss of the orifice becomes unstable. Therefore, it is preferable to provide the orifice in such a posture that the axial center of the hole is in the vertical direction.

  In this case, since the orifice is provided in such a posture that the axial center of the hole is in the vertical direction, a part of the air that has passed previously does not stay around the orifice hole, and the liquid is then supplied to the orifice hole. Will not interfere with the passage. Therefore, it is possible to reliably prevent the occurrence of a phenomenon that makes the resistance loss of the orifice unstable.

  Moreover, it is preferable that the said connection part exists in a position lower than the bottom part of said 2nd container.

  In this case, since the connection portion is located at a position lower than the bottom portion of the second container, even when the liquid level in the second container is low, it is somewhat between the liquid surface and the connection portion. The head difference can be taken.

  Therefore, the liquid moves in the drainage pipe, and the flow of the liquid in the drainage pipe tends to cause a phenomenon that the air intervening in the upper part of the second container is drawn to the connection part of the drainage pipe through the exhaust pipe. The air accumulated in the second container is easily exhausted to the outside. Thereby, for example, when the water server is used, it is possible to significantly reduce the time until the inside of the second container becomes airless again.

  Further, when the liquid level in the second container becomes high to some extent, the liquid moves in the drainage pipe, and the air flowing in the upper part of the second container is caused to flow through the drainage pipe by the flow of the liquid in the drainage pipe. Although the phenomenon of being drawn to the connection portion side of the liquid occurs, the phenomenon that the liquid is drawn from the exhaust pipe to the connection portion side of the drainage pipe eventually occurs.

  Even in this case, since the exhaust pipe does not pass through the second container, particularly when the second container is a cold water tank, the relatively cold drinking water near the bottom of the cold water tank is moved to the relatively warm air above it. It does not warm while drinking water is drawn through the exhaust pipe. As a result, the cooling efficiency is not lowered, and the demand for energy saving is met.

  Moreover, it is preferable that the said connection part is comprised by the venturi pipe.

  In this case, since the connecting portion is constituted by a Venturi tube, when the liquid is discharged, more air is sucked so that the second container can be quickly brought into an airless state.

  A second aspect of the first invention comprises the container air vent structure according to any one of the above, wherein the first container is an elastic bag body, and the second container is a cold water tank that cools drinking water as a liquid, The third container is a water server characterized by being a hot water tank for warming drinking water as a liquid.

  In this case, the air vent structure for the container according to any one of the above is provided, the first container is a stretchable bag, the second container is a cold water tank for cooling drinking water as a liquid, and the third container is a liquid Since it is a hot water tank for warming drinking water as described above, the effects as described above can be achieved.

(Embodiments 1 and 2 of the second invention)
By the way, when the drinking water in the water bottle is used up and replaced with another water bottle, it is desired to keep the inside of the cold water tank full so that it can be used continuously. Since the water pipe is always open, air flows into the cold water tank from the opening at the tip of the water conduit, and there is a problem as a water server having an airless structure. Therefore, in the first aspect of the second invention, the first container containing the liquid passes through the communication path including a rod-shaped member having an opening formed in the vicinity of the tip and a path communicating with the opening. A liquid delivery mechanism for a container configured to deliver to a second container installed below one container, wherein the first container is set at a predetermined position, and at least the rod-shaped member is placed on the first container. By inserting the vicinity of the tip, the liquid can be supplied to the second container through the communication passage, while at least the tip of the rod-shaped member from the first container in a state where the communication passage is closed. The present invention is characterized in that the vicinity can be pulled out.

  In this case, the liquid can be supplied to the second container via the communication path by inserting at least the vicinity of the tip of the rod-shaped member into the first container with the first container set at a predetermined position. On the other hand, since the at least the vicinity of the tip of the rod-shaped member can be pulled out from the first container in a state where the communication path is closed, the liquid in the first container is used up and another If the communication path is closed when the first container is replaced, air does not flow into the second container. Therefore, it is convenient that the second container is fully filled when the first container is replaced, and can be used as it is without taking any time for air bleeding after the replacement of the first container. .

  Further, an operating means for performing an operation of inserting at least the vicinity of the tip of the rod-shaped member into the first container and an operation of pulling out at least the vicinity of the tip of the rod-shaped member from the first container, and opening and closing the communication path It is preferable to provide an opening / closing means.

  In this case, an operation means for performing an operation of inserting at least the vicinity of the distal end of the rod-shaped member into the first container and an operation of pulling out at least the vicinity of the distal end of the rod-shaped member from the first container, and the communication path Opening and closing means for opening and closing, so that when the operation means is operated to insert at least the vicinity of the tip of the rod-like member into the first container, the opening and closing means can open the passage. On the other hand, there is a situation in which the airless state cannot be maintained by performing an operation of pulling out at least the vicinity of the tip of the rod-shaped member from the first container with the operating means while the passage is closed by the opening / closing means. It can be surely prevented.

  In addition, when the operation means is operated to insert at least the vicinity of the tip of the rod-like member into the first container, the opening / closing means can open the communication path, while the opening / closing means It is preferable that the operation means allows the operation of pulling out at least the vicinity of the tip of the rod-shaped member from the first container only when the communication path is closed.

  In this case, when the operation means is operated to insert at least the vicinity of the tip of the rod-like member into the first container, the opening / closing means can open the communication path, while the opening / closing means Thus, only when the communication path is closed, the operation means can be operated to pull out at least the vicinity of the tip of the rod-like member from the first container, so that an airless state is maintained due to an erroneous operation. It is possible to reliably prevent the situation where it cannot be performed.

  Further, in conjunction with the operation of inserting at least the vicinity of the tip of the rod-like member into the first container by the operating means, the open / close means can open the communication path, while the operating means allows the It is preferable that the communication path is closed by the opening / closing means in conjunction with an operation of pulling out at least the vicinity of the tip of the rod-shaped member from the first container.

  In this case, in conjunction with the operation of inserting at least the vicinity of the tip of the rod-like member into the first container by the operating means, the open / close means can open the communication path, while the operating means The communication path is closed by the opening / closing means in conjunction with the operation of pulling out at least the vicinity of the tip of the rod-shaped member from the first container, so that the operation is relatively simple and airless due to an erroneous operation. The situation where the state cannot be maintained can be surely prevented.

  Further, it is preferable that the operation by the operation means and the opening / closing operation of the communication path by the opening / closing means are interlocked using a link mechanism.

  In this case, since the operation by the operation means and the opening / closing operation of the communication path by the opening / closing means are configured to be interlocked using a link mechanism, no complicated electrical elements are required, and this energy saving is not required. It will be in line with the request.

  Further, it is preferable that the operation means is an operation lever provided on a proximal end side of the rod-shaped member, and the opening / closing means is a cock or a valve provided in the communication path.

  In this case, the operating means is an operating lever provided on the base end side of the rod-shaped member, and the opening / closing means is a cock or a valve provided in the communication path, so that the configuration is relatively simple. As a result, cost reduction can be realized.

  Further, it is preferable that at least the vicinity of the tip end of the rod-shaped member is inserted in a direction parallel to or downward from the bottom surface of the first container.

  In this case, since at least the vicinity of the tip end of the rod-shaped member is inserted in the direction parallel to the bottom surface or in a downward direction in the vicinity of the bottom surface of the first container, the first container can be compared with the conventional vertical puncture needle or the like. There are advantages such as less residual liquid in the container.

  By the way, air may be contained in the second container for some reason, and this air needs to be discharged out of the second container. In this regard, in Patent Document 3, an exhaust valve that is manually operated as an exhaust means is provided in the upper part of the cold water tank. When air is discharged from the exhaust valve to the outside of the cold water tank, the exhausted air is filled. Thus, although it is set as the structure which the liquid for drinks flows down into a cold water tank, it is troublesome to manually operate an exhaust valve, and the operation may be forgotten. Further, when the exhaust valve of the cold water tank stops functioning due to a failure or the like, there is a risk that the liquid for beverage will continue to leak from the exhaust valve. Furthermore, since the exhaust valve has a movable part, there is a problem that regular maintenance is required so that the movable part functions reliably.

  Moreover, in patent document 4, when the liquid level in the cold water tank 5a is low, it becomes difficult for the drinking water W to move in the main pipe part 51c of the discharge pipe 51a, and the flow of the drinking water W in the main pipe part 51c causes cold water to flow. The phenomenon that the air A intervening in the upper part of the tank 5a is drawn to the main pipe part 51c side through the guide pipe part 53a is less likely to occur. As a result, the air A accumulated in the cold water tank 5a is hardly exhausted to the outside. This does not correspond to the case where the air needs to be discharged most, such as at the start of use of the water server 1, and has a problem that it takes a long time until the inside of the cold water tank 5a becomes airless.

  Further, when the liquid level in the cold water tank 5a becomes high to some extent, the drinking water W moves in the main pipe portion 51c of the discharge pipe 51a, and intervenes in the upper part of the cold water tank 5a by the flow of the drinking water W in the main pipe portion 51c. Although the phenomenon that the air A to be drawn is drawn to the main pipe portion 51c side through the guide pipe portion 53a occurs, the phenomenon that the drinking water W is drawn from the guide pipe portion 53a to the main pipe portion 51c side eventually occurs. Then, the relatively cold drinking water W near the bottom of the cold water tank 5a is heated while the relatively warm air A and the drinking water W thereabove are sucked by the guide pipe portion 53a in the cold water tank 5a. As a result, the cooling efficiency is lowered, which is against the demand for energy saving.

  Therefore, a drain pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container, and an exhaust pipe for discharging the air in the second container from the vicinity of the top of the second container through the throttle means. It is preferable to provide a connecting portion for connecting the exhaust pipe to the drain pipe.

  In this case, a drain pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container, and an exhaust for discharging the air in the second container from the vicinity of the top of the second container through the throttle means. And a connecting portion for connecting the exhaust pipe to the drainage pipe is provided, which makes it difficult to suck the liquid near the top of the second container from the exhaust pipe. Therefore, particularly when the second container is a cold water tank, relatively cool drinking water near the bottom can be discharged out of the cold water tank without being mixed with relatively warm drinking water near the top. Improvements can be made.

  The throttling means is preferably an orifice or a valve.

  In this case, since the throttle means is an orifice or a valve, it has a simple configuration and is advantageous in terms of cost.

  Moreover, it is preferable that the said connection part exists in a position lower than the bottom part of said 2nd container.

  In this case, since the connection portion is located at a position lower than the bottom portion of the second container, even when the liquid level in the second container is low, it is somewhat between the liquid surface and the connection portion. The head difference can be taken.

  Therefore, the liquid moves in the drainage pipe, and the flow of the liquid in the drainage pipe tends to cause a phenomenon that the air intervening in the upper part of the second container is drawn to the connection part of the drainage pipe through the exhaust pipe. The air accumulated in the second container is easily exhausted to the outside. Thereby, when it is necessary to discharge the air most at the start of use of the water server or the like, it is possible to greatly reduce the time until the inside of the second container is in an airless state.

  Further, when the liquid level in the second container becomes high to some extent, the liquid moves in the drainage pipe, and the air flowing in the upper part of the second container is caused to flow through the drainage pipe by the flow of the liquid in the drainage pipe. Although the phenomenon of being drawn to the connection portion side of the liquid occurs, the phenomenon that the liquid is drawn from the exhaust pipe to the connection portion side of the drainage pipe eventually occurs.

  Even in this case, since the exhaust pipe does not pass through the second container, particularly when the second container is a cold water tank, the relatively cold drinking water near the bottom of the cold water tank is moved to the relatively warm air above it. It does not warm while drinking water is drawn through the exhaust pipe. As a result, the cooling efficiency is not lowered, and the demand for energy saving is met.

  Also, depending on the size of the pipe resistance and restrictions on arrangement, the liquid level in the second container does not rise forever, and there is almost no head difference between the liquid level and the connection part. is there. Therefore, by temporarily raising and lowering the drainage pipe between the liquid drainage part and the connection part in the vicinity of the bottom of the second container, a temporary liquid reservoir is formed in the drainage pipe. It is preferable to do.

  In this case, by temporarily raising and lowering the drainage pipe between the liquid drainage section and the connection section in the vicinity of the bottom of the second container, a temporary reservoir of liquid is provided in the drainage pipe. Since the drainage pipe is once raised and lowered between the liquid discharge part and the connection part in the vicinity of the bottom of the second container, the liquid is temporarily stored in the drainage pipe. As a result, the liquid level in the second container is secured, and a certain amount of head difference can be obtained between the liquid level and the connecting portion.

  Moreover, it is preferable that the said connection part is comprised by the venturi pipe.

  In this case, since the connecting portion is constituted by a Venturi tube, when the liquid is discharged, more air is sucked so that the second container can be quickly brought into an airless state.

  A second aspect of the invention comprises the container liquid delivery mechanism according to any one of the above, wherein the first container is a stretchable bag and the second container cools drinking water as a liquid. The present invention relates to a water server that is at least one of a cold water tank and a hot water tank that heats the drinking water.

  In this case, the liquid delivery mechanism for the container according to any one of the above, wherein the first container is an elastic bag body, and the second container cools drinking water as a liquid and the beverage Since it is at least one of the hot water tank that heats water, the above-described operational effects can be achieved.

(Embodiments 1 and 2 of the third invention)
In addition, water bottles with a spout for filling with drinking water sealed with a cap are commercially available, and there is a demand for using such a water bottle with a cap. In view of this, in the first aspect of the third invention, the liquid contained in the first container with the cap passes through the communication passage including a rod-shaped member having an opening formed near the tip and a passage communicating with the opening. A liquid delivery mechanism for a container configured to send out to a second container installed below the container, wherein the first container is set at a predetermined position, and the cap is at least near the tip of the rod-shaped member. The liquid is supplied to the second container through the communication path by opening the communication path when the communication path is inserted, while the rod shape is removed from the cap when the communication path is closed. It is characterized in that at least the vicinity of the tip of the member can be pulled out.

  In this case, when the first container is set at a predetermined position, when at least the vicinity of the tip end of the rod-shaped member is inserted into the cap, the liquid passage is opened to open the liquid via the communication path. Can be supplied to the second container, while at least the vicinity of the tip of the rod-shaped member can be pulled out from the cap when the communication path is closed, so that the liquid in the container is used up. Thus, when replacing with another first container, the communication path is always closed, and air does not flow into the second container. Therefore, when the first container with a cap is replaced, the second container is filled with liquid, and after the replacement of the first container, it can be used as it is without taking time for air bleed operation or the like. Convenient. In addition, it is possible to reliably prevent a situation where the airless state cannot be maintained due to an erroneous operation. In this case, no complicated electrical elements are required, and this is in line with the current demand for energy saving, and cost reduction can be realized.

  Moreover, it is preferable to provide the dome-shaped storage part which stores the said rod-shaped member, and the attachment means which attaches this storage part to the said cap with the said rod-shaped member so that attachment or detachment is possible.

  In this case, since the dome-shaped storage portion for storing the rod-shaped member and the attachment means for detachably attaching the storage portion to the cap together with the rod-shaped member, the rod-shaped member is inserted into and removed from the cap by itself. Can be reliably prevented.

  Further, the attaching means extends the hook from the storage portion and hooks the hook around the cap, and shrinks the hook so that the storage portion is fitted to the periphery of the cap. It is preferable that at least the vicinity of the tip of the rod-shaped member can be inserted into the cap.

  In this case, the attaching means extends the hook from the storage portion and hooks it around the cap, and shrinks the hook so as to fit the storage portion around the cap. Since at least the vicinity of the tip of the rod-shaped member can be inserted into the cap, the rod-shaped member can be reliably inserted through the cap.

  Moreover, it is preferable to provide the hook control part which controls the expansion-contraction of the said hook.

  In this case, since the hook restricting portion for restricting the expansion and contraction of the hook is provided, it is possible to more reliably prevent the rod-like member from being inserted into and removed from the cap alone.

  Moreover, it is preferable that an opening / closing means for opening and closing the communication path is provided in the vicinity of the base portion of the rod-shaped member in the storage portion.

  In this case, since the opening / closing means for opening and closing the communication path is provided in the vicinity of the base portion of the rod-shaped member in the storage portion, the structure is compact.

  Further, the opening / closing means includes the valve provided in the communication path and the storage portion fitted around the cap so that at least the vicinity of the tip of the rod-shaped member is inserted into the cap. It is preferable to provide an operation lever operable to open the valve.

  In this case, the opening / closing means is only in a state where at least the vicinity of the tip end of the rod-shaped member is inserted into the cap by fitting the valve provided in the communication path and the storage portion around the cap. Since the operation lever operable to open the valve is provided, it is possible to reliably prevent the valve from being opened and closed by itself.

  Moreover, it is preferable to provide the lever control part which controls operation of the said operation lever.

  In this case, since the lever restricting portion for restricting the operation of the operation lever is provided, it is possible to more reliably prevent the valve from being opened and closed by itself.

  Moreover, it is preferable that the cap has a thin-walled portion formed so as to have a radial shape with a portion where at least the vicinity of the tip of the rod-like member is inserted as a substantial center.

  In this case, since the cap has a thin-walled portion formed so as to have a radial shape about a portion where at least the vicinity of the tip of the rod-shaped member is inserted, the rod-shaped member is easily and surely inserted into the cap. Can do.

  The rod-shaped member is preferably a needle having a spire-shaped tip.

  In this case, since the rod-shaped member is a needle having a spire-shaped tip, the rod-shaped member can be more easily and reliably inserted into the cap.

  A second aspect of the invention includes a liquid delivery mechanism for a container according to any one of the above, wherein the first container is a stretchable bag and the second container cools drinking water as the liquid. The water server is characterized in that it is at least one of a cold water tank that warms drinking water as the liquid.

  In this case, the liquid delivery mechanism for the container according to any one of the above is provided, the first container is an elastic bag body, and the second container is a cold water tank that cools drinking water as the liquid; Since it is at least one of the hot water tank that warms the drinking water as the liquid, a water server that exhibits the above-described effects can be obtained.

(Fourth Invention Forms 1 and 2)
A container used for a conventional water server is often made of a polycarbonate resin having excellent strength. However, this resin has poor deformability, and a large space is required when storing an empty container. Further, when the liquid filled in the container is supplied to the water server, it is necessary to send air into the container. However, there is a possibility that various bacteria enter the container and become unsanitary.

  In consideration of such hygiene, various water servers having a so-called airless structure in which liquid and air are difficult to touch have been developed. In the water server, when drinking water is sent out from the container into the cold water tank, a flexible synthetic resin bag that can be reduced and deformed as the drinking water in the container decreases is sometimes used (see, for example, Patent Document 5). Although this bag is excellent in flexibility, depending on the material of the bag, there is a possibility that a unique odor may be transferred to the liquid inside. In addition, depending on how the bag is handled, there is a concern about liquid leakage or rupture.

  Therefore, in Patent Document 6, for example, as shown in FIGS. 62A to 62C, the bottom 81, the body 82 that continues from the periphery of the bottom 81, and the upper edge of the body 82 from the upper edge to the center. It consists of a shoulder portion 83 inclined upward and a cylindrical neck portion 84 disposed in the central portion, and is entirely formed of PET (polyethylene terephthalate) resin, and is vertically expanded and contracted to the trunk portion. A water server bottle 8 having a flexible bellows portion is disclosed. In this bottle 8, as shown in FIG. 62A, a certain amount of air A is left when the liquid W is filled. As shown in FIG. 62 (b), when the liquid W is gradually consumed, the bottle 8 is crushed by the atmospheric pressure because air does not enter from the outside with respect to the consumed amount. To go. At this time, the bellows portion of the body portion 82 of the bottle 8 is contracted, and the bottom portion 81 is depressed in the body portion 82.

  By the way, the bellows usually has an uneven height (referred to as a height in a direction perpendicular to the expansion / contraction direction; hereinafter the same) in the stretched state, but increases in the contracted state. Therefore, in the above-mentioned Patent Document 6, as shown in FIG. 62 (c), a large gap remains between the body portion 82 and the bottom portion 81, and the air A remains in the gap. It is hard to say that it has an airless structure. Further, in Patent Document 5, the initial air A is sterilized, but when the water server is used, the neck 84 is exposed to the outside air until then to take out the liquid W filled in the bottle 8. Since the pipe (not shown) is inserted, it is assumed that bacteria attached to the pipe easily propagate in the air A in the bottle 8. Further, in Patent Document 2, since a large amount of initial air A is placed, the filling amount of the liquid W with respect to the volume of the bottle 8 is reduced, and there is a possibility that the transportation cost of the bottle 8 is increased accordingly.

  Form 1 of the fourth invention is a PET resin container that is installed on the main body of the water server and supplies liquid to the tank in the main body, and the upper portion of the container main body in the installed state is bent. The bellows is provided so as to allow the lower portion of the bellows to be bent, and as the liquid filled in the container body decreases, the bellows of the upper portion is bent inward while the lower portion is bent. It is characterized by being configured to sink along. The PET resin includes equivalent products.

  In this case, the bellows is provided so as to allow bending of the upper portion of the container body in the installed state, and the bending of the lower portion thereof is restricted, and the liquid filled in the container body is reduced. Since the bellows of the upper part is bent and bent along the inside of the lower part, the bellows is stretched as the amount of liquid in the container decreases, and the height of the bellows is increased. Lower. Accordingly, contrary to the above-mentioned Patent Document 6, almost no gap is left between the lower portion and the upper portion when the liquid is used up, and an airless structure can be realized. In addition, unlike the above-mentioned Patent Document 6, it is not necessary to put the initial air, so that the liquid filling amount with respect to the volume of the container is increased, and the transportation cost of the container can be reduced.

  Moreover, it is preferable that the container main body in the installation state has a spherical shape.

  In this case, since the container body in the installed state has a spherical shape, the bellows of the upper part of the container body bends sequentially as the liquid filled in the container body decreases, and the inside of the lower part of the container body It becomes easy to sink along. In addition, the liquid filling amount with respect to the volume of the container is increased, and the transportation cost of the container can be reduced.

  Moreover, it is preferable that the container main body in the said installation state has a polygonal longitudinal cross section. The shape of the container main body is, for example, a truncated polyhedral cone or a truncated cone that is united upside down.

  In this case, since the container body in the installed state has a polygonal longitudinal section, the bellows of the upper part of the container body bends sequentially as the liquid filled in the container body decreases, It tends to sink along the inside of the lower part. In addition, the liquid filling amount with respect to the volume of the container is further increased, and the transportation cost of the container can be further reduced.

  Moreover, it is preferable that the inclination angle in the vicinity of the apex of the upper portion of the container body in the installed state is more relaxed than the inclination angle immediately below it.

  In this case, since the inclination angle near the apex of the upper part of the container body in the installed state is relaxed more than the inclination angle immediately below, the initial bending becomes easy.

  Moreover, it is preferable to provide a means for pressurizing the upper part of the container body in the installed state.

  In this case, since the means for pressurizing the upper part of the container body in the installed state is provided, the amount of liquid taken out from the container body can be secured by increasing the pressure in the container body even if the residual liquid is reduced. become able to. In addition, the liquid external outlet can be installed at a free position. For example, the faucet can be installed at a higher position that is easier to handle than in the prior art. Furthermore, airlessness can be promoted by quickly discharging the initial air in the tank of the water server in which the container body is set.

  Moreover, it is preferable to provide a liquid take-out cap on the lower portion of the container body in the installed state.

  In this case, since the liquid take-out cap is provided in the lower portion of the container main body in the installed state, there is less possibility of liquid leaking from the take-out port during transportation.

  A second aspect of the fourth invention is a water server characterized by comprising a support portion for supporting any of the containers described above.

  In this case, since the support portion for supporting the main body container of any of the above-described containers is provided, the container main body can be installed on the main body, and water can be supplied to the tank in the main body without air. You can get a server.

(Fifth invention)
Usually, a water server provides drinking water filled in a drinking water container as cold water or hot water. For example, when drinking medicine, there is a case where it is desired to use room temperature water.

  Therefore, in Patent Document 7, for example, a server body that can store a cartridge-type water storage tank in a lower space, a water absorption pipe that can be inserted into the water storage tank, a water supply pump that connects the water absorption pipe to an intake port, Cold water outflow pipe with opening / closing means, hot water outflow pipe and normal temperature water outflow pipe connected to the discharge port via a switching valve, switching water based on the operation of each opening / closing means, and water supply for operating the water supply pump There is disclosed a water server comprising a control means, a cooling means for cooling water sent from a feed water pump to a cold water outflow pipe, and a heating means for heating water sent from the feed water pump to the hot water outflow pipe.

  Moreover, in patent document 8, it is attached to the drinking water dispenser which provides the drinking water with which the drinking water container was filled as cold water or warm water, and the powder raw material for drinks and the drinking water provided from the said drinking water dispenser are made into a cup. A beverage supply device for discharging and supplying a beverage, wherein the beverage is selected to be selected from cold water or hot water as drinking water provided from the drinking water dispenser; and the beverage When the selection means is operated, the powder raw material selected by the operation is discharged and supplied from the powder raw material supply device to the cup set in the cup setting unit, and the powder raw material supplied to the cup is supplied And a control means for providing drinking water to be discharged from the drinking water discharge nozzle from the drinking water dispenser so as to melt in the cup. It is. The beverage supply device further includes room temperature water selection means for providing drinking water filled in the drinking water container, and the control means is configured to keep the beverage while the room temperature water selection means is pressed. It is also disclosed that a normal temperature water valve provided in a water dispenser is opened and discharged from the drinking water discharge nozzle.

  By the way, when the water server is not turned on, the drinking water container, the cold water tank, and the hot water tank are all at room temperature, but all manufacturers recommend using the water server at such room temperature. Not. The reason for this is that the cold water function is antibacterial, and the hot water has a bactericidal action, and the cold water / hot water function works to maintain the sanitary condition of drinking water. This is because there is a risk that germs may enter from the water inlet. In the above Patent Documents 7 and 8, it is assumed that normal temperature drinking water is directly supplied from the drinking water container, and the drinking water supplied from the drinking water container to the cold water tank and the hot water tank is required. It is presumed that the hygiene problem has not been solved.

  A fifth invention is a water server for supplying drinking water from a drinking water container to at least a cold water tank in the server body in a state where mixing of air is prohibited, the cooling mode for cooling the cooling tank, and the cooling tank A non-cooling mode for non-cooling, and a first selection switch for selecting either the cooling mode or the non-cooling mode.

  In this case, on the condition that the drinking water is supplied from the drinking water container to at least the cold water tank in the server body in a state where mixing of air is prohibited, the cooling mode for cooling the cooling tank, and the cooling tank is uncooled. And a first selection switch for selecting one of the cooling mode and the non-cooling mode, so that the airless structure can suppress bacterial growth. . Therefore, even if the drinking water supplied from the drinking water container to the cold water tank is used at room temperature, there is no need to worry about hygiene.

  By the way, since the hot water tank is heated, it can be sterilized individually, but use at room temperature still has a problem in terms of hygiene. Therefore, when the hot water tank is further provided in the server body, the server has a heating mode for heating the hot water tank and a non-heating mode for non-heating the hot water tank, and the heating mode and the non-heating mode. It is preferable that a second selection switch for selecting any one of the above is provided.

  In this case, when a hot water tank is further provided in the server body, the server has a heating mode for heating the hot water tank and a non-heating mode for non-heating the hot water tank, and the heating mode and the non-heating mode. Since the second selection switch for selecting any one of the above is provided, again, the airless structure can suppress bacterial growth. Therefore, even if the drinking water supplied from the drinking water container to the hot water tank is used at room temperature, there is no need to worry about hygiene.

  Moreover, it is preferable to provide each selection switch separately.

  In this case, since each selection switch is provided separately, it becomes possible to use either a cold water tank or a hot water tank at room temperature according to the user's preference.

  In addition, it is preferable that an indicator lamp indicating the mode selected by each selection switch is provided in the vicinity of each selection switch.

  In this case, since a display lamp indicating the mode selected by each selection switch is provided near each selection switch, the user can easily recognize which tank can be used at room temperature. .

(Sixth invention)
When the drinking water is sent from a water bottle containing drinking water to a cold water tank installed below the water bottle and a hot water tank installed further below the cold water tank, these water bottles and cold water are supplied. In the tank and the hot water tank, various water servers having an airless structure that make it difficult for the drinking water and the air to come into contact with each other have been developed particularly in consideration of hygiene.

  For example, in the water server of Patent Document 9, the drinking water is supplied in order from a bag body containing drinking water to a cold water tank installed below the bag body and a hot water tank installed further below the cold water tank. The air vent structure is configured such that when the drinking water is supplied from the bag body to the cold water tank, the communication pipe connecting the vicinity of the top of the cold water tank and the hot water tank is provided. And a discharge pipe for discharging air or drinking water discharged from the cold water tank into the hot water tank through the communication pipe from the vicinity of the top of the hot water tank. Thereby, time can be significantly shortened before the inside of a tank will be in an airless state.

  In the above-mentioned Patent Document 9, since drinking water and air are not easily touched in a water bottle, a cold water tank, or a hot water tank, hygiene has been taken into consideration. Air may enter. Even in that case, there is no particular problem because the drinking water in the hot water tank is heated and sterilized, but the drinking water in the cold water tank is only cooled to suppress the growth of bacteria, so this cold water tank It is preferable that the drinking water inside is sterilized by some method. Accordingly, the sixth invention provides a first container capable of being filled with a liquid containing drinking water, a second container installed below the first container and provided with cooling means, and installed further below the second container. And a third container provided with heating means, supplying the liquid in the first container in the order of the second container and the third container, and supplying the liquid in the second container Is a water server configured to cool the liquid supplied to the third container and to heat the liquid supplied to the third container by the heating means, and the liquid cooled in the second container can be provided to the outside. A first mode, a second mode in which the liquid heated in the third container can be provided to the outside, and the liquid heated in the third container flowing into the second container by natural convection A third mode capable of sterilizing the inside of the second container Together it is characterized in that which includes a alternatively selectable mode selection switch one of said first mode and the second mode and the third mode.

  In this case, a first mode capable of providing the liquid cooled in the second container to the outside, a second mode capable of providing the liquid heated in the third container to the outside, and the third container By having the heated liquid flow into the second container by natural convection, it has a third mode in which the inside of the second container can be sterilized, and the first mode, the second mode, and the third mode. Each mode can be executed with a single touch. Among these, in the first mode and the second mode, the airless structure makes it difficult for liquid and air to come into contact with each other and is considered in terms of hygiene, while in the third mode, the first container Even if some air is mixed in the second container due to replacement or the like, the solution in the second container can be sterilized with the liquid heated in the third container. Thus, a sterilization method suitable for an airless water server could be obtained.

  A communication pipe that communicates between the vicinity of the top of the second container and the inside of the third container; a first pipe that is connected to the vicinity of the bottom of the second container and includes a first valve; The second pipe connected near the top of the third container and having a second valve interposed therein, the first pipe and the second pipe are merged and opened to the outside through the third valve. And when the third mode is selected by the mode selection switch, the first valve and the second valve are opened on the condition that the third valve is closed. It is preferable to configure.

  In this case, a communication pipe communicating between the vicinity of the top in the second container and the inside of the third container, a first pipe connected to the vicinity of the bottom of the second container and having a first valve interposed therebetween, A second pipe connected near the top of the third container and having a second valve interposed therein, and the first pipe and the second pipe are merged and opened to the outside through the third valve. And when the third mode is selected by the mode selection switch, the first valve and the second valve are opened on the condition that the third valve is closed. Since it comprised so, each mode can be performed reliably. Moreover, since only the third valve is finally opened to the outside, almost all of the pipeline system can be sterilized in the third mode.

  Moreover, it is preferable that at least the first valve and the second valve are configured as automatic valves that are opened and closed according to a selection mode of the mode selection switch.

  In this case, since at least the first valve and the second valve are configured as automatic valves that are opened and closed according to the selection mode of the mode selection switch, each mode can be executed more reliably.

  Alternatively, a communication pipe communicating between the vicinity of the top of the second container and the inside of the third container, and a fourth pipe connected to the vicinity of the bottom of the second container and opened to the outside via a fourth valve A fifth pipe connected to the vicinity of the top of the third container and opened to the outside through a fifth valve; an upstream side of the fourth pipe; and an upstream of the fifth valve of the fifth pipe And a sixth pipe line joined via a sixth valve, and when the third mode is selected by the mode selection switch, the fourth valve and the fifth valve are closed. It is preferable that the sixth valve is configured to be opened.

  In this case, a communication pipe that connects the vicinity of the top of the second container and the inside of the third container, and a fourth pipe that is connected to the vicinity of the bottom of the second container and is opened to the outside via the fourth valve. A fifth pipe connected to the vicinity of the top of the third container and opened to the outside via a fifth valve; an upstream side of the fourth pipe; and a fifth valve of the fifth pipe A sixth pipe line joined to the upstream side via the sixth valve, and when the third mode is selected by the mode selection switch, the fourth valve and the fifth valve are closed. Since the sixth valve is configured to be opened as a condition, each mode can be executed reliably.

  In addition, it is preferable that at least the sixth valve is an automatic valve that is opened and closed according to a selection mode of the mode selection switch.

  In this case, since at least the sixth valve is constituted by an automatic valve that opens and closes according to the selection mode of the mode selection switch, each mode can be executed more reliably.

  Further, it is preferable that an indicator lamp indicating the mode selected by the mode selection switch is provided in the vicinity of the mode selection switch.

  In this case, since the display lamp indicating the mode selected by the mode selection switch is provided in the vicinity of the mode selection switch, it is convenient to visually recognize which mode is executed.

(Seventh invention)
By the way, as shown in FIG. 8B, if the needle 8b is moved and stabbed with respect to the fixed container, there is a possibility that the needle 8b may be stabbed into the container 4b ′ and leak from there. In view of this, the seventh aspect of the invention provides a predetermined liquid from a first container placed on the upper part of the apparatus main body and capable of being reduced and deformed as the liquid filled therein decreases, to a second container installed at the lower part of the apparatus main body. A liquid supply device for a container configured to supply the container, having an opening formed in the vicinity of the tip and a passage communicating with the opening. By pushing the first container into the rod-shaped member, the predetermined liquid can be supplied to the second container via the rod-shaped member.

  In this case, the first container is pushed into a rod-shaped member that is installed from the back side of the upper part of the apparatus main body toward the front side and has an opening formed near the tip and a passage communicating with the opening. Since the predetermined liquid can be supplied to the second container via the rod-like member, the needle 8b is less likely to be pierced into the container 4b ′ as in the case of FIG. 8B. Thereby, it can be made more difficult to leak.

  Moreover, it is preferable to store the first container in a protective container that is more difficult to deform than the first container.

  In this case, since the first container is housed in a protective container that is less likely to be deformed than the first container, mistakes in inserting the needle 8b into the container 4b 'as in the case of FIG. 8B are reduced.

  Moreover, it is preferable that the said protective container is equipped with the cap for pushing in a said 1st container through this protective container to the said rod-shaped member.

  In this case, since the protective container is provided with a cap for pushing the first container through the protective container on the rod-like member, the container 4b ′ of the needle 8b as in the case of FIG. Fewer stab errors.

  In addition, it is preferable that the rod-shaped member is installed in a recess formed in the upper portion of the apparatus main body, and the cap of the protective container can be fitted into the recess.

  In this case, the rod-like member is installed in a recess formed in the upper part of the apparatus main body, and the cap of the protective container can be fitted into the recess, so that the needle 8b as in the case of FIG. The mistake of stabbed into the container 4b 'is reduced. Further, when the needle 8b is used as the rod-shaped member, there is no risk that the user may be damaged by the needle 8b, which is safe.

  Moreover, it is preferable that the upper part of the apparatus main body and the top plate of the second container installed at the lower part of the apparatus main body can be integrally detached.

  In this case, since the upper part of the apparatus main body and the top plate of the second container installed at the lower part of the apparatus main body can be integrally detached, maintenance inside the second container is facilitated.

(Eighth invention)
2. Description of the Related Art Conventionally, various needle structures have been developed for opening holes in containers filled with fluids such as liquids, powders, granules, and gases, and taking out the fluids from the containers.

  For example, Patent Document 10 discloses a water server provided with a needle that opens a hole in a plastic bag containing a beverage liquid and feeds the beverage liquid to a storage tank installed below the plastic bag. This needle has a tapered shape with a sharp tip, has an opening on the side surface of the tip portion, has a bottom surface open, has an internal passage that leads from the opening to the bottom surface, and extends horizontally from the side surface. An extending collar is formed, and a force is applied downward to the collar of the needle by a spring.

  Thus, when the plastic bag is above the needle, the needle automatically protrudes upward due to its weight, and the tip of the needle opens a hole in the plastic bag.

  And when the site | part which opens a hole in the plastic bag containing the liquid for drinks is the bottom part of the plastic bag, it is described that the plastic bag with the holes is in close contact with the needle so that the liquid for beverage does not leak. ing.

  However, it is difficult to use the needle structure disclosed in Patent Document 10 when a portion for opening a hole in a plastic bag containing a beverage liquid is, for example, a side surface other than the bottom of the plastic bag.

  Therefore, an eighth invention is a structure of a needle for opening a hole in a container in which a fluid is enclosed and taking out the fluid from the container, and the needle is a container when the needle is inserted into the container. It is characterized in that a retaining mechanism is provided to prevent the slipping out of the device.

  In this case, when the needle is inserted into the container, since the stopper is provided to prevent the needle from coming out of the container, even when a hole is made in, for example, the side wall of the container in which the fluid is sealed, The container with the hole and the needle are brought into close contact with each other, and there is no possibility that the fluid leaks outside. In this case, it can be used conveniently regardless of the location of the hole in the container.

  By the way, although it is possible to provide the seal part for inserting a needle in the plastic bag as a container, a plastic bag becomes expensive. Therefore, the retaining mechanism includes a flange portion that comes into contact with the container from the outside, and an expanded portion that expands inside the container when the needle penetrates the container, and between the expanded portion and the flange portion. It is preferable that the peripheral portion of the hole of the container is sandwiched.

  According to this, the retaining mechanism includes a flange portion that comes into contact with the container from the outside, and an expanded portion that expands inside the container when the needle penetrates the container, the expanded portion and the flange portion, Since the peripheral portion of the hole of the container is sandwiched between them, there is no need to provide a seal portion or the like for inserting the needle into the container, and the container can be inexpensive.

  Further, since the needle is used repeatedly, it is necessary to be able to easily remove it from the container. Therefore, an expanded portion is provided between the distal end portion of the needle and the flange portion, and by bringing the flange portion closer to the distal end portion, the substantially central portion of the expanded portion protrudes in the radial direction, and the distal end It is preferable that the substantially central portion of the expanded portion is retracted in the radial direction by moving the flange portion away from the portion.

  According to this, the expansion part is provided between the front-end | tip part and flange part of a needle, and the approximate center part of this expansion part protrudes to radial direction by approaching a flange part to a front-end | tip part. As a result, the projecting widened portion obstructs the needle, and the needle cannot be easily removed from the container. Further, by moving the flange portion away from the tip portion, the substantially central portion of the expanded portion is retracted in the radial direction, so that the needle can be easily removed from the container. Thereby, a needle can be used repeatedly.

  Moreover, it is preferable that the expansion part is formed with a flexible material.

  According to this, since the expansion part is formed of a flexible material, it can withstand repeated use well.

  Moreover, it is preferable that the expansion part is coat | covered with the elastic material.

  According to this, since the expansion part is coat | covered with the elastic material, it comes to be able to improve a sealing performance significantly.

  According to the present invention, the vicinity of the top of the second container and the third container communicate with each other in a straight line, and at the open end in the third container, the line resistance is greater than that at the time of backflow of air or liquid. A communication element provided with a fluid element that enlarges the fluid, and when the liquid is supplied to the second container through the needle by relatively moving the needle into the first container, the fluid element of the communication pipe And a discharge pipe for discharging air or liquid discharged from the second container into the third container from the vicinity of the top of the third container, so that the liquid is discharged from the first container into the second container. When supplied, the air in the second container is compressed, the compressed air is discharged into the third container through the fluid element of the communication pipe, and the air discharged into the third container Is discharged from the third container to the outside through the discharge pipe. As a result, the liquid is filled in the second container, and the liquid filled in the second container is discharged into the third container through the fluid element of the communication pipe. Filled with liquid. As a result, particularly when the initial air is discharged, the time until the second container and the third container become airless can be greatly reduced.

  In addition, since a fluid element is provided at the open end in the third container so that the line resistance is larger than that at the time of supply when air or liquid flows backward, the air or liquid from the first container or the second container is third. Since it becomes easy to be supplied to a container and it becomes difficult to flow backward, like the said patent documents 3 and 4, the heating efficiency and cooling efficiency in a 2nd container do not fall, and it responds to the request | requirement of energy saving. Here, the reason why the fluid element is provided at the open end in the third container is to secure the installation space.

  Further, unlike the case where a backflow prevention valve is provided in the supply line, the backflow prevention valve becomes a resistance and does not hinder the flow of the liquid, and the maintenance thereof becomes unnecessary. Further, as in the case where a coil part, a U-seal part, etc. are provided in the supply line, the coil part, the U-seal part, etc. become resistance and do not hinder the flow of liquid, and air stays there. Nothing will happen. Therefore, even when the airless structure is adopted, it is possible to always stably supply liquid by suppressing the backflow of the liquid from the third container to the first container or the second container.

It is side sectional drawing which shows typically the whole structure of the water server which concerns on Embodiments 1-5 of 1st invention. It is a cross-sectional view of the bottle holder of the water server according to Embodiments 1 to 5 of the first invention. It is a cross-sectional view of the hot water tank of the water server according to Embodiments 1 to 5 of the first invention. It is a main-body part enlarged view (side view) of the needle which concerns on Embodiment 1 of 1st invention. It is a main-body part enlarged view (front view) of the needle concerning Embodiment 1 of the 1st invention. It is a guide part enlarged view (plan view) of a needle concerning Embodiment 1 of the first invention. It is a guide part enlarged view (AA arrow sectional view of Drawing 3A) of a needle concerning Embodiment 1 of the 1st invention. It is explanatory drawing (step S1) which shows the usage example of the needle which concerns on Embodiment 1 of 1st invention. It is explanatory drawing (step S2) which shows the usage example of the needle which concerns on Embodiment 1 of 1st invention. It is explanatory drawing (step S3) which shows the usage example of the needle which concerns on Embodiment 1 of 1st invention. It is a main-body part enlarged view (side view) of the needle which concerns on Embodiment 2 of 1st invention. It is a main-body part enlarged view (plan view) of the needle concerning Embodiment 2 of the first invention. It is a guide part enlarged view of a needle according to Embodiment 2 of the first invention (having a 360 ° spiral groove). It is a guide part enlarged view (having a 180-degree spiral groove) of the needle concerning Embodiment 2 of the first invention. It is a guide part enlarged view (what has a spiral groove in a part) of a needle concerning Embodiment 2 of the 1st invention. It is explanatory drawing (step S11) which shows the usage example of the needle which concerns on Embodiment 2 of 1st invention. It is explanatory drawing (step S12) which shows the usage example of the needle which concerns on Embodiment 2 of 1st invention. It is explanatory drawing (step S13) which shows the usage example of the needle which concerns on Embodiment 2 of 1st invention. It is explanatory drawing of the liquid extraction mechanism from the container of a prior art example. It is explanatory drawing of the liquid extraction mechanism from the container of 1st invention. It is explanatory drawing (step S21) which shows the usage example of the needle which concerns on Embodiment 3 of 1st invention. It is explanatory drawing (step S22) which shows the usage example of the needle which concerns on Embodiment 3 of 1st invention. It is explanatory drawing (step S23) which shows the usage example of the needle which concerns on Embodiment 3 of 1st invention. It is a conceptual diagram of the air vent structure of the cold water tank and hot water tank which concern on Embodiment 4 of 1st invention. It is a perspective view around the convex part of the cold water tank which concerns on Embodiment 4 of 1st invention. It is a conceptual diagram of the air vent structure of the cold water tank and hot water tank which concerns on Embodiment 5 of 1st invention. It is a perspective view around the convex part of the cold water tank which concerns on Embodiment 5 of 1st invention. It is side sectional drawing which shows typically the whole structure of the water server which concerns on Embodiment 6, 7 of 1st invention. It is a conceptual diagram of the air vent structure of the cold water tank and hot water tank which concerns on Embodiment 6 of 1st invention. It is a perspective view of the convex part which concerns on Embodiment 6 of 1st invention. It is a perspective view of a venturi tube concerning Embodiment 6 of the 1st invention. It is a perspective view of the orifice which concerns on Embodiment 6 of 1st invention. It is a conceptual diagram of the air bleeding structure of the cold water tank which concerns on the modification 1 of Embodiment 6 of 1st invention. It is a conceptual diagram of the air vent structure of the cold water tank and hot water tank which concerns on Embodiment 7 of 1st invention. It is a perspective view of the vortex diode which concerns on Embodiment 7 of 1st invention. It is explanatory drawing (side view) which shows the liquid supply operation | movement of the vortex diode which concerns on Embodiment 7 of 1st invention. It is explanatory drawing (plan view) which shows the liquid supply operation | movement of the vortex diode which concerns on Embodiment 7 of 1st invention. It is explanatory drawing (side view) which shows the backflow operation | movement of the vortex diode which concerns on Embodiment 7 of 1st invention. It is explanatory drawing (plan view) which shows the backflow operation | movement of the vortex diode which concerns on Embodiment 7 of 1st invention. It is a perspective view of the vortex diode which concerns on the modification 2 of Embodiment 7 of 1st invention. It is explanatory drawing (side view) which shows the liquid supply operation | movement of the vortex diode which concerns on the modification 2 of Embodiment 7 of 1st invention. It is explanatory drawing (plan view) which shows the liquid supply operation | movement of the vortex diode which concerns on the modification 2 of Embodiment 7 of 1st invention. It is explanatory drawing (side view) which shows the backflow operation | movement of the vortex diode which concerns on the modification 2 of Embodiment 7 of 1st invention. It is explanatory drawing (plan view) which shows the backflow operation | movement of the vortex diode which concerns on the modification 2 of Embodiment 7 of 1st invention. It is a conceptual diagram of the line heater which concerns on the modification 3 of Embodiment 7 of 1st invention. It is a conceptual diagram of the air vent structure of the cold water tank in the prior art example of 1st invention. It is a side view of the water server which concerns on Embodiment 1 of 2nd invention. It is explanatory drawing which shows the structure and operation | movement 1 of the needle which concern on Embodiment 1 of 2nd invention. It is explanatory drawing which shows the structure and operation | movement 2 of the needle which concern on Embodiment 1 of 2nd invention. It is explanatory drawing which shows the structure and operation | movement 3 of the needle which concern on Embodiment 1 of 2nd invention. It is explanatory drawing which shows the structure and operation | movement 1 of the needle which concern on Embodiment 2 of 2nd invention. It is explanatory drawing which shows the structure and operation | movement 2 of the needle which concern on Embodiment 2 of 2nd invention. It is explanatory drawing which shows the structure and operation | movement 3 of the needle which concern on Embodiment 2 of 2nd invention. It is a conceptual diagram of the air bleeding structure of the cold water tank which concerns on Embodiment 3 of 2nd invention. It is a perspective view of a venturi tube concerning Embodiment 3 of the 2nd invention. It is a perspective view of the orifice which concerns on Embodiment 3 of 2nd invention. It is explanatory drawing which shows the operation | movement procedure of the air bleeding structure of the cold water tank which concerns on Embodiment 3 of 2nd invention. It is a conceptual diagram of the air vent structure of the cold water tank in the modification of Embodiment 3 of 2nd invention. It is a conceptual diagram of the air vent structure of the cold water tank in the prior art example of 2nd invention. It is a side view of the water server which concerns on one Embodiment of 3rd invention. It is explanatory drawing which shows the structure and operation | movement 1 of the needle which concern on embodiment of 3rd invention. It is explanatory drawing which shows the structure and operation | movement 2 of the needle which concern on embodiment of 3rd invention. It is explanatory drawing which shows the structure and operation | movement 3 of the needle which concern on embodiment of 3rd invention. It is explanatory drawing which shows the structure of the cap of the bag body which concerns on embodiment of 3rd invention. It is explanatory drawing which shows air bleeding structures, such as a cold water tank, concerning embodiment of 3rd invention. It is a side view of the water server which concerns on the modification of embodiment of 3rd invention. It is a conceptual diagram of the air vent structure of the cold water tank in the prior art example of 3rd invention. It is a sectional side view which shows typically the whole structure of the water server which can mount | wear with the spherical container which concerns on Embodiment 1 of the 4th invention. It is a front view of the spherical container which concerns on Embodiment 1 of 4th invention (it is set as the direction when it mounts | wears with a water server). It is a principle figure which shows the airless supply of the drinking water with which the spherical container which concerns on Embodiment 1 of 4th invention is shown, Comprising: (a) is a figure which shows direction of the centerline of the bellows near the top part, (b) is the figure It is a figure which shows a mode that a bellows receives a water pressure and deform | transforms. It is a principle figure which shows the airless structure of the water server which can mount | wear with the spherical container which concerns on Embodiment 1 of the 4th invention. It is a longitudinal cross-sectional view which shows the use condition of the spherical container which concerns on Embodiment 1 of 4th invention, Comprising: (a) is a figure which shows the mode at the time of liquid supply start, (b) is a figure which shows the mode during liquid supply, (C) is a figure which shows the mode at the time of completion | finish of liquid supply. It is a perspective view which shows the use condition of the spherical container which concerns on Embodiment 1 of 4th invention, Comprising: (a) is a figure which shows the mode at the time of liquid supply start, (b) is a figure which shows the mode during liquid supply, c) is a diagram showing a state at the end of liquid supply. It is a sectional side view which shows typically the whole structure of the water server which can mount | wear with the deformed container which concerns on Embodiment 2 of 4th invention. It is a front view of the deformed container which concerns on Embodiment 2 of 4th invention (it is set as direction when it mounts | wears with a water server). It is a principle figure which shows the airless supply of the drinking water with which the unusual shape container which concerns on Embodiment 2 of 4th invention is shown, Comprising: (a) is a figure which shows direction of the centerline of the bellows near the top part, (b) is the figure It is a figure which shows a mode that a bellows receives a water pressure and deform | transforms. It is a longitudinal cross-sectional view which shows the use condition of the deformed container which concerns on Embodiment 2 of 4th invention, (a) is a figure which shows the mode at the time of liquid supply start, (b) is a figure which shows the mode during liquid supply, (C) is a figure which shows the mode at the time of completion | finish of liquid supply. It is a perspective view which shows the use condition of the deformed container which concerns on Embodiment 2 of 4th invention, (a) is a figure which shows the mode at the time of liquid supply start, (b) is a figure which shows the mode at the time of liquid supply completion | finish. is there. It is explanatory drawing which shows the pressurizing means which concerns on the modification of 4th invention. It is a longitudinal cross-sectional view which shows the use condition in an example of the bottle for water servers in the prior art example of 4th invention. It is side sectional drawing which shows typically the whole structure of the water server which concerns on one Embodiment of 5th invention. It is a front view which shows the upper part vicinity of the server main body of the water server which concerns on one Embodiment of 5th invention. It is a block diagram which shows the control system of the water server which concerns on one Embodiment of 5th invention. It is a flowchart which shows the operation example of the water server which concerns on one Embodiment of 5th invention. It is explanatory drawing which shows the airless structure of the water server which concerns on one Embodiment of 5th invention. It is side sectional drawing which shows typically the whole structure of the water server which concerns on Embodiment 1 of 6th invention. It is a front view which shows the upper part vicinity of the server main body of the water server which concerns on Embodiment 1 of 6th invention. It is a block diagram which mainly shows the control system of valves etc. of the water server which concerns on Embodiment 1 of 6th invention. It is a flowchart which shows the operation example mainly of valves of the water server which concerns on Embodiment 1 of 6th invention. It is explanatory drawing which shows the operation example in the initial mode of the water server which concerns on Embodiment 1 of 6th invention. It is explanatory drawing which shows the operation example in the cold water mode of the water server which concerns on Embodiment 1 of 6th invention. It is explanatory drawing which shows the operation example in the warm water mode of the water server which concerns on Embodiment 1 of 6th invention. It is explanatory drawing which shows the operation example in the disinfection mode of the water server which concerns on Embodiment 1 of 6th invention. It is side sectional drawing which shows typically the whole structure of the water server which concerns on Embodiment 2 of 6th invention. It is a front view which shows the upper part vicinity of the server main body of the water server which concerns on Embodiment 2 of 6th invention. It is a block diagram which mainly shows the control system of valves etc. of the water server which concerns on Embodiment 2 of 6th invention. It is a flowchart which shows the operation example of valves mainly of the water server which concerns on Embodiment 2 of 6th invention. It is explanatory drawing which shows the operation example in the initial mode of the water server which concerns on Embodiment 2 of 6th invention. It is explanatory drawing which shows the operation example in the cold water mode of the water server which concerns on Embodiment 2 of 6th invention. It is explanatory drawing which shows the operation example in the warm water mode of the water server which concerns on Embodiment 2 of 6th invention. It is explanatory drawing which shows the operation example in the disinfection mode of the water server which concerns on Embodiment 2 of 6th invention. It is a side view which shows typically the whole structure of the water server which concerns on one Embodiment of 7th invention. It is a perspective view which shows the state which put the bag body in the inner box which concerns on one Embodiment of 7th invention. It is explanatory drawing which shows a mode when setting the inner box which concerns on one Embodiment of 7th invention to the server upper part. It is explanatory drawing which shows a mode when the inner box which concerns on one Embodiment of 7th invention is set to the server upper part. It is explanatory drawing which shows the mode at the time of the maintenance of the cold water tank which concerns on one Embodiment of 7th invention. It is explanatory drawing which shows the mode at the time of air bleeding with the cold water tank and hot water tank which concern on one Embodiment of 7th invention. It is a mimetic diagram showing the whole needle structure concerning one embodiment of the 8th invention. It is the elements on larger scale of the needle concerning one embodiment of the 8th invention. It is explanatory drawing which shows step 1 of the usage method of the needle which concerns on one Embodiment of 8th invention. It is explanatory drawing which shows step 2 of the usage method of the needle which concerns on one Embodiment of 8th invention. It is explanatory drawing which shows step 3 of the usage method of the needle which concerns on one Embodiment of 8th invention. It is explanatory drawing which shows step 4 of the usage method of the needle which concerns on one Embodiment of 8th invention.

(Embodiment 1 of the first invention including the present invention (hereinafter referred to as the first invention))
FIG. 1A is a side sectional view schematically showing the overall configuration of a water server 1 according to Embodiments 1 to 3 of the first invention including the present invention, FIG. 1B is a transverse sectional view of the bottle holder 2, and FIG. 1C is a hot water tank. 6 is a cross-sectional view of FIG. In FIG. 1A, the left side shows the front, the right side shows the back, the lower side in FIG. 1B shows the front, and the upper side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1A, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 sets a bag body (corresponding to a first container) 4 containing drinking water as a liquid inside, or on the main body 3 in order to take out the set bag body 4 to the outside. It is attached so that it can be opened and closed (reference numeral 2 in FIG. 1A indicates a closed state, and reference numeral 2 ′ indicates an open state). Further, inside the main body 3, a cold water tank 5 (corresponding to a second container) for cooling drinking water and a hot water tank (corresponding to a third container) 6 for warming drinking water are arranged vertically. ing.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, and can be deformed by shrinking as the drinking water filled therein decreases. And in the initial state filled with drinking water, it is roundish as a whole and has a slightly flat hexahedral shape. Here, the bag body 4 is supported by the support portion 7 in a substantially standing posture. The shape of the bag body 4 in the initial state may be another shape such as a square or a cylindrical shape.

  The support portion 7 is provided with a relatively large radius from the back to the front so as not to obstruct the reduction deformation of the bag body 4 as much as possible, and is provided with a relatively small radius at the front. The bag 4 can be set so as to be reduced and deformed without excessive twisting when the drinking water filled in the bag 4 is taken out between the two rounds. Although not shown in the figure, appropriate rounds are provided on both the left and right sides of the support portion 7 to achieve the same effect. Further, as shown in FIG. 1B, a bulging portion 71 is formed by projecting the vicinity of the center in the left-right direction of the support portion 7 to the back side with an appropriate radius. Accordingly, when the bag body 4 filled with drinking water is supported in a substantially standing posture by the support portion 7, the bag body 4 is deformed by its own weight, and the bulging portion of the support portion 7 is near the bottom surface 41 of the front surface. A state of being in close contact with 71 is obtained.

  Thus, the bag body 4 supported by the support portion 7 can reliably open the hole 42 in the vicinity of the bottom surface 41 on the front side by piercing the needle 8 substantially parallel to the bottom surface 41. it can. The needle 8 includes a needle guide 82 attached to the support 7 on the front side, and a needle body 81 that is guided by the needle guide 82 and pierces the bag body 4. The needle 8 is preferably pierced as close as possible to the bottom surface 41 of the bag body 4, but the needle 8 may be pierced into a portion away from the bottom surface 41 of the bag body 4 depending on the shape or the like of the bag body 4. In that case, the needle 8 may be pierced in a direction that is lowered or raised. Further, in an extreme case, the needle 8 may be pierced downward from the upper portion of the bag body 4.

  And the drinking water taken out from the bag body 4 is made into cold water through the flexible hose 9 made of, for example, silicon rubber connected to the needle body 81 of the needle 8 and the line 10 further connected to the hose 9. The tank 5 and the hot water tank 6 are respectively supplied.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water, and the drinking water supplied from the bag body 4 is cooled by the cooling means 50, whereby the cold water tank 5. The temperature is maintained at about 4 to 10 ° C. Further, the inside of the cold water tank 5 is brought into an airless state by a communication pipe 102 and the like which will be described later.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water, and the drinking water supplied from the bag body 4 is heated by the heating means 60. The hot water tank 6 is maintained at a temperature of about 80 to 90 ° C. The hot water tank 6 is also brought into an airless state by a discharge pipe 63 and the like which will be described later.

  Further, the drinking water cooled in the cold water tank 5 and the drinking water warmed in the hot water tank 6 are opened and closed at their respective water supply ports (water faucets) 11 and 12 by a predetermined amount in a cup or the like (not shown). It is supposed to be poured.

  2A is an enlarged view (side view) of the main body of the needle 8 according to the first embodiment, and FIG. 2B is a front view thereof. 3A is an enlarged view (plan view) of a guide portion of the needle 8 according to the first embodiment, and FIG. 3B is a cross-sectional view taken along the line AA.

  As shown in FIGS. 2A and 2B, the needle body 81 of the needle 8 is further fixed to the spire-shaped tip portion 811, a substantially cylindrical intermediate portion 812 fixed to the tip portion 811, and the intermediate portion 812. It consists of a base 813. As a material of at least a portion of the tip 811 of the needle body 81 that contacts the bag body 4, a hole made in the bag body 4 by using a synthetic resin having good adhesion to the bag body 4 is used. Can reduce the leakage of drinking water as much as possible. As a result, there is no need to provide extra attachment means such as a ring or a flange around the hole 42 of the bag body 4.

  Substantially trapezoidal openings 814 and 814 are respectively formed on the front side and the back side of the side surface of the tip portion 811. The openings 814 and 814 communicate with a passage 816 formed around the axis of the intermediate portion 812 by a passage 815 formed around the axis of the tip portion 811.

  The intermediate portion 812 is formed so that the passage 816 is bent downward in the vicinity of the center in the axial direction, and the connecting portion 817 of the hose 9 is provided at the lower end of the bent passage 816. Further, a stopper 818 that restricts the movement range protrudes above the intermediate portion 812. Note that the left and right side surfaces of the intermediate portion 812 may be provided with a steady rest that does not cause a rotation operation during the movement.

  The base portion 813 is enlarged in diameter to form a door knob shape so that when the needle 8 is pierced, the pushing operation becomes easy. When the needle 8 is pulled back to the original state, the pulling operation is performed by pulling the upper portion of the stopper 818. Note that a lever (not shown) may be provided on the upper portion of the stopper 818 to serve as the base 813 and the stopper 818. Further, a button (not shown) may be provided near the base 813 or the lever, and the needle body 81 may be prevented from moving without permission by operating this button when operating the base 813 or the lever (blocking mechanism). Equivalent to Here, when the needle main body 81 is moved manually as in the first embodiment, it is originally unthinkable that the needle main body 81 moves arbitrarily. In addition, it is intended to ensure safety in the event of an emergency. A specific configuration of such a blocking mechanism will be described later in a third embodiment.

  As shown in FIGS. 3A and 3B, the needle guide 82 of the needle 8 is a cylindrical portion (corresponding to a straight guide portion) 821 attached so as to protrude forward on the support portion 7, and this cylinder. A flat portion 822 that is further above the portion 821 and extends forward in parallel therewith is integrally formed.

  The cylindrical portion 821 has a through groove 823 formed in the lower portion thereof for preventing interference with the hose connecting portion 817, and a through groove 824 formed in the upper portion thereof for preventing interference with the stopper 818. It has. The flat portion 822 includes a through groove 825 that is directly above the through groove 824 and restricts the movement range of the stopper 818. Therefore, the tip of the through groove 825 is cut so as to be closer to the support portion 7 than the tips of the other through grooves 823 and 8234.

  Then, as shown in FIG. 4A described later, the tip 811 of the needle body 81 is slightly inserted into the cylindrical portion 821 of the needle guide 82. At this time, the hose connecting portion 817 is in front of the cylindrical portion 821, but the stopper 818 is fitted in the through groove 824 of the cylindrical portion 821 and the through groove 825 of the flat portion 822 so as to be able to advance and retract.

  Further, in this state, by pressing the base portion 813 of the needle body 81, the hose connection portion 817 enters the through groove 823 of the cylindrical portion 821, and the stopper 818 includes the through groove 824 of the cylindrical portion 821 and the flat portion 822. In each of the through-grooves 825, the process proceeds toward the bag body 4, and the progress is stopped by interfering with the through-groove 825.

  Thereby, when the needle 8 is pierced into the bag body 4, the pushing operation can be reliably performed. When the needle 8 is pulled back to the original state, the pulling operation is performed by pulling the upper portion of the stopper 818.

  4A to 4C are explanatory views (steps S1 to S3) showing examples of use of the needle 8 according to the first embodiment, respectively. In addition, before entering step S1, the bottle holder 2 of the water server 1 is opened, and the bag body 4 is supported in a substantially standing posture on the support portion 7 in a state like the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In step S1, as shown in FIG. 4A, the needle body 81 of the needle 8 is set on the needle guide 82 attached to the support portion 7. At this time, the tip 811 of the needle body 81 is slightly inserted into the cylindrical portion 821 of the needle guide 82 so that the hose connecting portion 817 is in front of the cylindrical portion 821, but the stopper 818 penetrates the cylindrical portion 821. The groove 824 and the through groove 825 of the flat portion 822 are slidably fitted. And the front-end | tip part 811 of the needle main body 81 and the bag body 4 of the state supported by the support part 7 are not contacting at all.

  In step S2, as shown in FIG. 4B, the user manually operates the base 813 of the needle body 81 so as to push it in the X direction in FIG. 4B. Then, the intermediate portion 812 and the tip portion 811 of the needle body 81 are integrated and slide in the cylindrical portion 821 of the needle guide 82, and the bag is supported by the tip portion 811 and the support portion 7. The body 4 comes into contact. At this time, the hose connecting portion 817 is in the through groove 823 of the cylindrical portion 821, and the stopper 818 is in the through groove 824 of the cylindrical portion 821 and the through groove 825 of the flat portion 822.

  In step S3, as shown in FIG. 4C, the tip 811 of the needle body 81 breaks through the front lower side of the bag body 4 to reach the inside thereof, and the stopper 818 of the needle body 81 is the through groove of the flat portion 822. When interfering with 825, the needle body 81 will not advance any further. Then, the tension acting in the direction in which the bag body 4 shrinks and the gravity of the drinking water itself filled in the bag body 4 act simultaneously, so that the drinking water in the bag body 4 becomes the tip of the needle body 81. It flows out from the openings 814 and 814 of the portion 811. The beverage liquid that has flowed out is discharged into the hose 9 through the passage 815 of the tip 811, the passage 816 of the intermediate portion 812, and the hose connection portion 817 in this order. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state.

  The drinking water discharged to the hose 9 is further supplied to the cold water tank 5 and the hot water tank 6 through the line 10. The drinking water cooled in the cold water tank 5 and the drinking water heated in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, The needle 8 is pulled back to the original state in the state of the bottle holder 2 '. That is, the upper part of the stopper 818 is pulled, and the pull back operation in the Y direction in FIG. 4C is performed. Thereby, the needle 8 is pulled out from the bag body 4 in the reverse procedure as in each of steps S1 to S3. And after setting another bag 4 in a predetermined position, water supply can be performed now by repeating said each step S1-S3 again in order.

  As described above, according to the water server 1 using the needle 8 of the first embodiment, the needle guide 82 having the cylindrical portion 821 as the guide portion formed to face the bag body 4, and the spire-like shape By projecting the distal end portion 811 from the needle guide 82 along the cylindrical portion 821 of the needle guide 82, the distal end portion 811 near the bottom surface 41 of the bag body 4 has the distal end portion 811. Since the hole 42 is formed so as to be parallel or downward with the bottom surface 41, the hole 42 can be easily opened near the bottom surface 41 of the bag 4 filled with drinking water (the solid line portion in FIG. 8B). See).

  Thereby, even if the drinking water in the bag body 4 has decreased, the tip of the needle 8 does not get in the way, and most of the drinking water in the bag body 4 can be taken out. Further, when the needle 8 is removed from the used bag body 4 in order to replace the used bag body 4 with a new one, the residual liquid 40b ′ is hardly leaked from the hole 42 opened in the bag body 4. (Refer to the chain double-dashed line portion in FIG. 8B).

  In addition, by opening the hole 42 in the bag body 4 with the needle 8, the drinking water that has entered the bag body 4 through the needle 8 is surely transferred to the cold water tank 5 and the hot water tank 6 in the bag body 4. Can be sent to.

  Thereby, not only the drinking water contained in the bag body 4 but also the drinking water stored in the cold water tank 5 and the hot water tank 6 to which it is sent may be included in the mixed air. Can suppress the propagation of various germs as much as possible.

(Embodiment 2 of the first invention)
By the way, in Embodiment 1 described above, the needle 8 is pierced straight into the bag body 4 by manual operation. However, the needle may be screwed into the bag body 4 automatically and spirally. Such a configuration will be described in detail below as a second embodiment. The basic structure of the water server 1 itself is substantially the same as that of the first embodiment shown in FIGS. 1A and 1B. The structure of the needle 8 ′ will be mainly described in detail, and the description of the other elements common to the first embodiment will be omitted.

  5A is an enlarged view (side view) of the main body of the needle 8 'according to the second embodiment, and FIG. 5B is a plan view thereof. 6A is an enlarged view of a guide portion of a needle according to the second embodiment (having a 360 ° spiral groove), FIG. 6B is having a 180 ° spiral groove, and FIG. 6C is a spiral groove in a part thereof. Each of these is shown.

  As shown in FIGS. 5A and 5B, the needle body 83 of the needle 8 ′ has a tapered tip portion 831, a substantially cylindrical intermediate portion 832 connected to the tip portion 831, and a diameter larger than that of the intermediate portion 832. And a base portion 833 connected to each other. As the material of the tip 831 and the intermediate part 832 of the needle body 83, leakage of drinking water from the hole 42 opened in the bag 4 by using a synthetic resin having good adhesion to the bag 4. Is expected to be as low as possible.

  Substantially trapezoidal openings 834 and 834 are respectively formed on the front side and the back side of the side surface of the distal end portion 831. The openings 834 and 834 communicate with passages 835 formed in the tip portion 831, the intermediate portion 832, and the base portion 833.

  The tip portion 831 is formed with a step portion 835 a that is asymmetric in the direction perpendicular to the axis at the most distal end portion, thereby making it easier to open the hole 42 in the bag body 4. Here, a spiral rib 836 of about half rotation is formed, which makes it easier to open the hole 42 in the bag body 4. Unlike the first embodiment, the intermediate portion 832 is only formed with a straight passage 835.

  A pin hole 837 in the direction perpendicular to the axis is formed in the base 833, and a pin 87 is inserted into the pin hole 837 as shown in FIG. The pin 87 is brought into contact with one end side of the spring 89 through a disc-shaped spacer 88 and the other end of the spring 89 is screwed and fixed at an appropriate position of the support portion 7 in advance. I am trying to keep up. Note that a hose connection portion 837 a for connecting the hose 9 is formed at the rearmost portion of the base portion 833.

  The base 833 is locked to a locking member (not shown) so that the needle main body 83 does not move freely, and the locking state of the base 833 to the locking member is changed to, for example, the bottle holder 2. The needle body 83 is guided by the needle guide 84 and automatically moves toward the bag body 4 by the return force of the spring 89 by releasing it by operating an external button or the like (in the blocking mechanism). Equivalent to).

  Thereby, when the needle 8 ′ is pierced into the bag body 4, the pushing operation can be performed with one touch. When the needle 8 'is pulled back to the original state, a handle or the like (not shown) is provided to perform the pulling back operation.

  Here, as shown in FIG. 6A, the needle guide 84 of the needle 8 ′ is rotated 360 ° around the cylindrical portion 841 attached so as to protrude forward on the support portion 7 and the peripheral surface 842 of the cylindrical portion 841. And a spiral groove 843 (corresponding to a spiral guide portion) formed in such a manner. In this case, when the pin 87 protruded from the base portion 833 of the needle body 83 is guided by the spiral groove 843 of the needle guide 84, the tip portion 831 is screwed into the bag body 4 while rotating by 360 °. Become.

  Alternatively, as shown in FIG. 6B, the needle guide 85 of the needle 8 'rotates a cylindrical portion 851 attached so as to protrude forward on the support portion 7 and a peripheral surface 852 of the cylindrical portion 851 by 180 °. And a spiral groove 853 (corresponding to a spiral guide) formed as described above. In this case, when the pin 87 protruded from the base 833 of the needle body 83 is guided by the spiral groove 853 of the needle guide 85, the tip 831 is screwed into the bag body 4 while rotating by 180 °. Become.

  Alternatively, as shown in FIG. 6C, the needle guide 86 of the needle 8 ′ is spirally formed by a cylindrical portion 861 attached so as to protrude forward on the support portion 7 and a part of the peripheral surface 862 of the cylindrical portion 861. And a spiral groove (corresponding to a spiral guide portion) 863 having the remaining portion cut into a straight shape. In this case, when the pin 87 protruding from the base portion 833 of the needle body 83 is guided by the spiral groove 863 of the needle guide 86, the tip end portion 831 is rotated only at the beginning and screwed into the bag body 4, and thereafter Move straight.

  According to the results of this experiment, the so-called twisting action required when the tip 831 of the needle body 83 is pierced into the bag body 4 is obtained in any of the cases of FIGS. 6A, 6B, and 6C. I found out that Accordingly, here, the needle 8 ′ uses a combination of the needle body 83 and the needle guide 84, but other combinations may be used.

  7A to 7C are explanatory views (steps S11 to S13) showing examples of use of the needle 8 'according to the second embodiment, respectively. Again, before entering the step S11, by opening the bottle holder 2 of the water server 1 and supporting the bag body 4 on the support portion 7 in a substantially standing posture in a state like the bottle holder 2 ′, It is assumed that the bag body 4 is set at a predetermined position.

  First, in step S11, it is assumed that the needle body 83 of the needle 8 'is set on the needle guide 84 as shown in FIG. 7A. At this time, the pin 87 inserted into the pin holes 837 and 837 of the base portion 833 of the needle body 83 is brought into contact with one end side of the spring 89 via the spacer 88 and the other end of the spring 89 is appropriately connected to the support portion 7. Although it is elastically biased by screwing it in place, these setting operations are performed in advance by the manufacturer of the water server 1. At this time, since the base portion 833 is locked to a locking member (not shown), the needle body 83 is on the front side of the needle guide 84, and the distal end portion 831 and the bag body 4 are not in contact at all.

  In step S <b> 12, the bottle holder 2 ′ of the water server 1 is closed and the bottle holder 2 is in the state. Thereafter, as shown in FIG. 7B, the needle body 83 is automatically advanced in the X direction by the elastic biasing force of the spring 89 by releasing the locked state by, for example, a button operation. Then, the base portion 833, the intermediate portion 832, and the distal end portion 831 of the needle body 83 are integrated and guided to the spiral groove 843 of the cylindrical portion 841 of the needle guide 84, and slide while rotating in the R direction. The tip 831 eventually comes into contact with the bag body 4.

  In step S13, as shown in FIG. 7C, the needle body 83 slides while rotating in the R direction, breaks through the front lower side of the bag body 4, and reaches the inside thereof. Then, the drinking water in the bag body 4 flows out from the openings 834 and 834 of the distal end portion 831 of the needle body 83 by the simultaneous action of the tension that works to reduce the bag body 4 and the gravity applied to the drinking water. . The outflowed drinking water passes through the tip portion 831, the intermediate portion 832, the passage 835 of the base portion 833, and the hose connection portion 837 a in this order, and is discharged to the hose 9.

  The drinking water discharged to the hose 9 is further supplied to the cold water tank 5 and the hot water tank 6 through the line 10. The drinking water cooled in the cold water tank 5 and the drinking water heated in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, In the state of the bottle holder 2 ′, a needle body 83 of the needle 8 ′ is pulled out from the bag body 4 by operating a handle (not shown). And after setting another bag 4 in a predetermined position, water supply can be performed now by repeating said each step S11-S13 again.

  As described above, according to the water server 1 of the second embodiment, the tip 831 of the needle body 83 in the needle 8 ′ is projected from the needle guide 84 while being twisted, so that the tip 831 is attached to the bag body 4. Since the hole is opened and the drinking water contained in the bag body 4 is sent to the cold water tank 5 and the hot water tank 6 installed at the lower part of the bag body 4, in addition to the function and effect of the first embodiment, The hole 42 can be further easily opened in the bag body 4 filled with drinking water.

(Embodiment 3 of the first invention)
Further, in the first and second embodiments, the needle 8 is caused to appear and disappear from the bag body 4 manually or automatically. However, the needle 8 is provided with a blocking mechanism for preventing this, and when It is preferable that the blocking mechanism is released manually. Such a configuration will be described in detail below as a third embodiment. Here, a case will be described as an example in which a lever 818a serving as both the base 813 and the stopper 818 of the needle 8 according to the first embodiment is provided, and the needle 8 ″ is moved in and out by manually operating the lever 818a. Needless to say, the present invention can be similarly applied to the case where the base 813 of the needle 8 according to the first embodiment is manually operated or the needle 8 'according to the second embodiment is automatically retracted. Since the structure itself is substantially the same as that of the first embodiment shown in FIG. 1, the blocking mechanism in the structure of the needle 8 ″ will be mainly described in detail below, and other elements common to the first embodiment will be described below. I will omit the explanation.

  That is, as shown in FIGS. 9A to 9C to be described later, the needle 8 ″ includes a needle main body 81a and a needle guide 82a, and the needle main body 81a further includes steady rests 819a and 819b extending left and right. (The length of the steady rest 819a is set longer than that of the steady rest 819b.) The tip of the steady rest 819a is moved up and down by the pressing force of the button 826 or the return force by the compression spring 826a. The blocking mechanism is embodied by being freely detachable from the stepped portions 827a and 827b of the regulating plate 827.

  9A to 9C are explanatory diagrams (steps S21 to S23) illustrating an example of use of the needle 8 ″ according to the third embodiment, where the upper stage is a plan view and the lower stage is a P-P cross-sectional view thereof. In this case as well, before entering the step S21, the user opens the bottle holder 2 of the water server 1 and supports the bag body 4 in a substantially standing posture on the support portion 7 in a state like the bottle holder 2 ′. Thus, it is assumed that the bag body 4 is set at a predetermined position.

  First, in step S21, as shown in FIG. 9A, it is assumed that the user has set the needle main body 81a of the needle 8 ″ to the needle guide 82a. At this time, the steady rest 819a of the needle main body 81a is a restriction plate. The needle main body 81a is on the front side of the needle guide 82a, and the tip end portion thereof is not in contact with the bag body 4 at all.

  In step S <b> 22, the user closes the bottle holder 2 ′ of the water server 1 so that the bottle holder 2 is used. Thereafter, as shown in FIG. 9B, when the user presses the button 826 and pushes down the restricting plate 827 against the urging force of the compression spring 826a, the steady stop 819a of the needle body 81a becomes the restricting plate 827. The stepped portion 827a is removed. Accordingly, the user can hold the lever 818a and advance the needle body 81a forward. Then, the needle main body 81a is guided by the needle guide 82a and slides, and the tip end part comes into contact with the bag body 4 in the end.

  In step S23, as shown in FIG. 9C, the needle body 81a slides further forward. When the end of the stroke is slid, the compression spring 826a is extended, and the restricting plate 827 is pushed up by the urging force of the compression spring 826a. Stopped. At this time, the needle main body 81a penetrates the front lower side of the bag body 4 and reaches the inside thereof. Then, the drinking water in the bag body 4 is discharged to the hose 9 through the needle body 81a by the simultaneous action of the tension that works to shrink the bag body 4 and the gravity applied to the drinking water.

  The drinking water discharged to the hose 9 is further supplied to the cold water tank 5 and the hot water tank 6 through the line 10. The drinking water cooled in the cold water tank 5 and the drinking water heated in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, In the state of the bottle holder 2 ′, the lever 818a is pulled back while pressing the button 826, and the needle body 81a of the needle 8 ″ is pulled out from the bag body 4. Then, another bag is used. After the body 4 is set at a predetermined position, water can be supplied by repeating the steps S21 to S23 again.

  As described above, according to the water server 1 using the needle 8 ″ according to the third embodiment, the tip of the needle main body 81a is prevented from appearing and retracting manually along the guide portion of the needle guide 82a. When the prevention mechanism is provided and is caused to appear and disappear by the manual operation, it is a condition that the prevention mechanism is released by the manual operation.

  In addition, although the said Embodiment 1-3 demonstrated the water server 1 provided with both the cold water tank 5 and the hot water tank 6 which are supplied from the bag body 4, the water provided only with one of those tanks The same applies to servers.

  In the first and third embodiments, the needle 8 is pushed straight into the bag body 4 by manual operation. In the second embodiment, the needle 8 'is automatically screwed into the bag body 4. In the first and third embodiments, the needle 8 may be automatically pushed straight into the bag body 4, or in the second embodiment, the needle 8 ′ may be manually screwed into the bag body 4.

  In the first and third embodiments, the user presses the base 813 of the needle main body 81, but a manual operation may be performed via a link mechanism or the like. In this case, even a child, an elderly person, or a woman who does not have physical strength compared to an adult male can easily perform the operation. However, it is preferable to make the configuration as simple as possible from the viewpoint of low cost.

  In the second embodiment, the needle body 83 is automatically pressed using the elastic biasing force of the spring 89. However, the pressing operation may be performed by an electric motor or the like. In this case, it is preferable that the configuration be as simple and reliable as possible from the viewpoint of energy saving and the like in addition to low cost.

  In the second embodiment, both the step portion 835a and the spiral rib 836 are provided at the tip 831 of the needle body 83 of the needle 8 ′ so as to be screwed into the bag body 4 as much as possible. When the resistance from the bag body 4 is small, one of them may be provided, or in some cases, none of them may be provided as in the first embodiment.

(Embodiment 4 of the first invention)
FIG. 1A is a side sectional view schematically showing the overall configuration of the water server 1 according to the first to third embodiments of the present invention, and FIG. 1B is a transverse sectional view of the bottle holder 2. In FIG. 1A, the left side shows the front, the right side shows the back, the lower side in FIG. 1B shows the front, and the upper side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1A, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 sets a bag body (corresponding to a first container) 4 containing drinking water as a liquid inside, or on the main body 3 in order to take out the set bag body 4 to the outside. It is attached so that it can be opened and closed (reference numeral 2 in FIG. 1A indicates a closed state, and reference numeral 2 ′ indicates an open state). A cold water tank (corresponding to the second container) 5 for cooling the drinking water and a hot water tank (corresponding to the third container) 6 for warming the drinking water are arranged inside the main body 3 vertically. ing.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, and can be deformed by shrinking as the drinking water filled therein decreases. And in the initial state filled with drinking water, it is roundish as a whole and has a slightly flat hexahedral shape. Here, the bag body 4 is supported by the support portion 7 in a substantially standing posture. The shape of the bag body 4 in the initial state may be another shape such as a square or a cylindrical shape.

  The support portion 7 is provided with a relatively large radius from the back to the front so as not to obstruct the reduction deformation of the bag body 4 as much as possible, and is provided with a relatively small radius at the front. The bag 4 can be set so as to be reduced and deformed without excessive twisting when the drinking water filled in the bag 4 is taken out between the two rounds. Although not shown in the figure, appropriate rounds are provided on both the left and right sides of the support portion 7 to achieve the same effect. Further, as shown in FIG. 1B, a bulging portion 71 is formed by projecting the vicinity of the center in the left-right direction of the support portion 7 to the back side with an appropriate radius. Accordingly, when the bag body 4 filled with drinking water is supported in a substantially standing posture by the support portion 7, the bag body 4 is deformed by its own weight, and the bulging portion of the support portion 7 is near the bottom surface 41 of the front surface. A state of being in close contact with 71 is obtained.

  Thus, the bag body 4 supported by the support portion 7 can reliably open the hole 42 in the vicinity of the bottom surface 41 on the front side by piercing the needle 8 substantially parallel to the bottom surface 41. it can. The needle 8 is attached to the support portion 7 on the front side. The needle 8 is preferably pierced as close as possible to the bottom surface 41 of the bag body 4, but the needle 8 may be pierced into a portion away from the bottom surface 41 of the bag body 4 depending on the shape or the like of the bag body 4. In that case, the needle 8 may be pierced in the direction of the downward or forward ascent. Further, in an extreme case, the needle 8 may be pierced downward from the upper portion of the bag body 4.

  And the drinking water taken out from the bag body 4 through the flexible hose 9 made of, for example, silicon rubber connected to the base portion of the needle 8 and the line 10 further connected to the hose 9 is supplied to the cold water tank 5. To be supplied. A part of the drinking water supplied to the cold water tank 5 is also supplied to the hot water tank 6 via the communication pipe 102.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water, and the drinking water supplied from the bag body 4 is cooled by the cooling means 50, whereby the cold water tank 5. The temperature is maintained at about 4 to 10 ° C.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water, and the drinking water supplied from the bag body 4 is heated by the heating means 60. The hot water tank 6 is maintained at a temperature of about 80 to 90 ° C.

  Further, the drinking water cooled in the cold water tank 5 and the drinking water warmed in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. It has become.

  FIG. 10 is a conceptual diagram of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the fourth embodiment, and FIG. 11 is a perspective view around the convex portion 101. As shown in FIG. 10, a convex portion 101 is provided near the top of the cold water tank 5, and a communication pipe 102 that communicates the inside of the convex portion 101 with the inside of the hot water tank 6 is provided. Specifically, as shown in FIG. 11, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5, and the upper end of the communication pipe 102 is inserted into the convex portion 101 and opened. It is a so-called double tubular structure. And by connecting the line 10 to the site | part spaced apart from this convex part 101, the drinking water W supplied from the line 10 is prevented from flowing out directly from the communicating pipe 102, and, thereby, the cold water tank 5 The air A inside can easily flow out into the hot water tank 6. Note that the communication pipe 102 is allowed to be bent slightly depending on the arrangement thereof, but it is needless to say that the communication pipe 102 is, for example, a tip-down so as not to cause air accumulation as much as possible.

  In addition, a drain pipe 51 is provided for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 downward, and the drinking water W in the hot water tank 6 is discharged from the vicinity of the top of the hot water tank. A discharge pipe 63 is provided.

  Hereinafter, the operation procedure (steps S31 to S33) of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the fourth embodiment will be described. Before entering the step S31, the bottle holder 2 of the water server 1 is opened and the bag body 4 is supported in a substantially standing posture on the support portion 7 in the state of the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In step S31, the supply of the drinking water W from the bag body 4 into the cold water tank 5 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 is removed from the needle 8. It is discharged into the hose 9. The drinking water W discharged to the hose 9 is further supplied to the cold water tank 5 through the line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  By the way, in the initial state, the water supply port 11 of the cold water tank 5 and the water supply port 12 of the hot water tank 6 are both closed. Then, even if it is going to supply drinking water W from the bag body 4 into the cold water tank 5 and the hot water tank 6, since both the cold water tank 5 and the hot water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water W. Therefore, in step S32, when only the water supply port 12 of the hot water tank 6 is opened, the air A in the cold water tank 5 is collected in the convex portion 101, and then flows out into the hot water tank 6 through the communication pipe 102. The The air A flowing out into the hot water tank 6 is discharged to the outside from the water supply port 12 through the discharge pipe 63. For this reason, the drinking water W comes to be supplied from the line 10 into the cold water tank 5.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the water supply port 12, so that the water supply port 12 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  Thus, when the drinking water W is supplied into the cold water tank 5, the initial air in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 can be quickly brought into an airless state. After that, the water inlet 12 is closed.

  Thereafter, in step S33, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are opened and closed by opening and closing the water supply ports 11 and 12, respectively. Only a fixed amount is poured.

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again. Thus, the needle 8 is pulled out of the bag body 4 in the state of the bottle holder 2 ′. And after setting another bag 4 in a predetermined position, water supply can be performed now by repeating said each step S1-S3 again in order.

  As described above, according to the fourth embodiment, the drinking water W is supplied from the bag body 4 to the cold water tank 5 through the communication pipe 102 that communicates the vicinity of the top in the cold water tank 5 and the inside of the hot water tank 6 in a descending manner. Since it is provided with a discharge pipe 63 for discharging air A or drinking water W discharged from the cold water tank 5 into the hot water tank 6 through the communication pipe 102 from the vicinity of the top of the hot water tank 6 when supplied. When the drinking water W is supplied from the body 4 into the cold water tank 5, the air A in the cold water tank 5 is compressed, and the compressed air A is discharged into the hot water tank 6 through the communication pipe 102. The air A discharged into the hot water tank 6 is discharged from the hot water tank 6 to the outside through the discharge pipe 63. As a result, particularly in the initial state, the time until the inside of the cold water tank 5 and the hot water tank 6 is in an airless state can be greatly shortened.

In addition, according to the fourth embodiment, since the drain pipe 51 for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 is provided in the first downward direction, the comparison in the vicinity of the bottom of the cold water tank 5 is performed. Since the cold drinking water W can be discharged out of the cold water tank 5 without being mixed with the relatively warm drinking water W near the top, the cooling efficiency can be improved.
(Embodiment 5 of the first invention)

  FIG. 12 is a conceptual diagram of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the fifth embodiment, and FIG. 13 is a perspective view around the convex portion 101.

  In this Embodiment 5, as shown in FIG. 12, while providing the convex part 101 to which the drinking water W is supplied from the said bag body 4 near the top part of the cold water tank 5, the inside of this convex part 101, the hot water tank 6, and Is provided with a communication pipe 102 that communicates with the lower end. Specifically, as shown in FIG. 13, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5, and the upper end of the communication pipe 102 is inserted into the convex portion 101 and opened. It is a so-called double tubular structure. And the drinking water W supplied from the line 10 does not flow out of the communicating pipe 102 directly by connecting the line 10 to an appropriate part of the side wall of the convex portion 101. Further, a notch 103 is formed by notching a part of the upper end of the communication pipe 102 in a U shape at a part (for example, the front side in FIG. 13) different from the part to which the line 10 is connected in the convex part 101. The air A in the cold water tank 5 is easy to flow out into the hot water tank 6.

  In addition, a drain pipe 51 is provided for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 downward, and the drinking water W in the hot water tank 6 is discharged from the vicinity of the top of the hot water tank. A discharge pipe 63 is provided.

  Hereinafter, the operation procedure (steps S41 to S43) of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the fifth embodiment will be described. Before entering the step S41, the bottle holder 2 of the water server 1 is opened and the bag body 4 is supported in a substantially standing posture on the support portion 7 in the state of the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In step S41, supply of the drinking water W from the bag body 4 into the cold water tank 5 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 is removed from the needle 8. It is discharged into the hose 9. The drinking water W discharged to the hose 9 is further supplied to the convex portion 101 of the cold water tank 5 through the line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  By the way, in the initial state, the water supply port 11 of the cold water tank 5 and the water supply port 12 of the hot water tank 6 are both closed. Then, even if it is going to supply drinking water W from the bag body 4 into the cold water tank 5 and the hot water tank 6, since both the cold water tank 5 and the hot water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water W. Therefore, in step S42, when only the water supply port 12 of the hot water tank 6 is opened, the air A in the cold water tank 5 is collected on the convex portion 101 and then flows out into the hot water tank 6 through the communication pipe 102. The The air A flowing out into the hot water tank 6 is discharged to the outside from the water supply port 12 through the discharge pipe 63. For this reason, the drinking water W comes to be supplied into the cold water tank 5 from the gap between the convex portion 101 and the communication pipe 102.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the water supply port 12, so that the water supply port 12 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  Thus, when the drinking water W is supplied into the cold water tank 5, the initial air in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 can be quickly brought into an airless state. After that, the water inlet 12 is closed.

  Thereafter, in step S43, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are opened and closed by opening and closing the water supply ports 11 and 12, respectively. Only a fixed amount is poured.

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again. Thus, the needle 8 is pulled out of the bag body 4 in the state of the bottle holder 2 ′. And after setting another bag body 4 to a predetermined position, water supply can be performed now by repeating each said step S41-S43 again in order.

  As described above, according to the fifth embodiment, since the drinking water W from the bag body 4 is supplied into the convex portion 101, the cold water tank 5 is further added to the effects of the fourth embodiment. There is an advantage that the nozzle arrangement near the top of the nozzle becomes easy.

(Embodiment 6 of the first invention)
FIG. 14 is a side sectional view schematically showing the overall configuration of the water server 1 according to Embodiments 6 and 7 of the present invention. In the figure, the left side shows the front and the right side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 14, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 sets a bag body (corresponding to a first container) 4 containing drinking water as a liquid inside, or on the main body 3 in order to take out the set bag body 4 to the outside. It is attached so that it can be opened and closed (reference numeral 2 in FIG. 14 indicates a closed state, and reference numeral 2 ′ indicates an open state). A cold water tank (corresponding to the second container) 5 for cooling the drinking water and a hot water tank (corresponding to the third container) 6 for warming the drinking water are arranged inside the main body 3 vertically. ing.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, and can be deformed by shrinking as the drinking water filled therein decreases. And in the initial state filled with drinking water, it is roundish as a whole and has a slightly flat hexahedral shape. Here, the bag body 4 is supported by the support portion 7 in a substantially standing posture. The shape of the bag body 4 in the initial state may be another shape such as a square or a cylindrical shape.

  The support portion 7 is provided with a relatively large radius from the back to the front so as not to obstruct the reduction deformation of the bag body 4 as much as possible, and is provided with a relatively small radius at the front. The bag 4 can be set so as to be reduced and deformed without excessive twisting when the drinking water filled in the bag 4 is taken out between the two rounds. Although not shown in the figure, appropriate rounds are provided on both the left and right sides of the support portion 7 to achieve the same effect.

  The bag body 4 supported by the support portion 7 can be pierced in the vicinity of the bottom surface on the front side by piercing the needle 8 horizontally or slightly downward. The needle 8 is attached to the support portion 7 on the front side and pierces the bag body 4.

  And the drinking water taken out from the bag body 4 through the flexible hose 9 made of, for example, silicon rubber connected to the base portion of the needle 8 and the line 10 further connected to the hose 9 is supplied to the cold water tank 5. The convex portion 101 is supplied. A part of the drinking water supplied to the convex portion 101 of the cold water tank 5 is also supplied to the hot water tank 6 through the communication pipe 102.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water, and the drinking water supplied from the bag body 4 is cooled by the cooling means 50, whereby the cold water tank 5. The temperature is maintained at about 4 to 10 ° C.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water, and the drinking water supplied from the bag body 4 is heated by the heating means 60. The hot water tank 6 is maintained at a temperature of about 80 to 90 ° C.

  Further, the drinking water cooled in the cold water tank 5 and the drinking water warmed in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. It has become.

  15 is a conceptual diagram of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the sixth embodiment, FIG. 16 is a perspective view of the convex portion 101, FIG. 17 is a perspective view of the venturi tube 52, and FIG. It is a perspective view.

  As shown in FIG. 15, a convex portion 101 to which the drinking water W is supplied from the bag body 4 is provided near the top of the cold water tank 5, and the convex portion 101 and the hot water tank 6 communicate with each other in a descending manner. A communication pipe 102 is provided. Specifically, as shown in FIG. 16, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5, and the upper end of the communication pipe 102 is inserted into the convex portion 101 and opened. It is a so-called double tubular structure. And the drinking water W supplied from the line 10 does not flow out of the exhaust pipe 53 directly by connecting the line 10 and the exhaust pipe 53 to be described later to the opposite parts in plan view of the convex portion 101. It has become. Further, a notch 103 is formed by notching a part of the upper end of the communication pipe 102 in a U-shape at a portion (for example, the front side in FIG. 16) between the line 10 and the exhaust pipe 53 in the convex portion 101. The air A in the cold water tank 5 is easy to flow out into the hot water tank 6. However, when the convex portion 101 is not provided, it is preferable to arrange the line 10 and the exhaust pipe 53 near the top of the cold water tank 5.

  Further, the drainage pipe 51 that discharges the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 and the air A in the cold water tank 5 is discharged from the convex portion 101 through the throttle portion. In addition to the exhaust pipe 53, a connecting portion for connecting the exhaust pipe 53 to the drain pipe 51 at a position lower than the bottom of the cold water tank 5 is provided.

  At this time, according to “Bernouli's theorem” which is an energy conservation law in the fluid, the static pressure in the connection portion of the drainage pipe 51 is larger than that in the cold water tank 5. Only the dynamic pressure due to decreases. And, as the head difference between the liquid level in the cold water tank 5 and the connection portion of the drainage pipe 51 becomes larger, the flow in the drainage pipe 51 becomes faster. Accordingly, the air A from the exhaust pipe 53 is changed accordingly. It becomes easy to suck. Actually, the head difference is up to the outlet end of the drainage pipe 51, but here, the head difference is made up to the connection portion with a margin. The pipe resistance is negligible.

  The connecting portion is constituted by a venturi tube 52. That is, as shown in FIG. 17, the venturi tube 52 includes a first large diameter portion 521, a reduced diameter portion 522, a small diameter portion 523, an enlarged diameter portion 524, a second large diameter tube 525, and a suction tube 526. And a junction 527. The first large diameter portion 521 is connected to the drain pipe 51 on the cold water tank 5 side, and the second large diameter section 525 is connected to the drain pipe 51 on the water supply port 11 side. The suction pipe 526 is connected at a right angle at the junction 527 of the small diameter part 523, and its tip is connected to the exhaust pipe 53.

  In this venturi pipe 52, the drinking water W that has flowed into the first large diameter part 521 from the drain pipe 51 on the cold water tank 5 side at the speed v1 is guided to the small diameter part 523 while increasing the flow velocity at the reduced diameter part 522. Therefore, the speed is set to v2. Then, since the dynamic pressure in the small diameter portion 523 becomes higher than the dynamic pressure in the drainage pipe 51 described above, the air A from the suction pipe 526 is more easily sucked accordingly. Here, it is assumed that the air A is sucked at the speed v3. The drinking water W that has passed through the small-diameter portion 523 is led from the second large-diameter portion 525 to the drainage pipe 51 on the water supply port 11 side while reducing the flow velocity at the enlarged-diameter portion 524.

  In the middle of the exhaust pipe 53, an orifice 54 as a throttle portion is provided. That is, as shown in FIG. 18, the orifice 54 includes a main body 541 and a hole 542 that passes through the main body 541, and the hole diameter is set according to the passage amount of the air A. The orifice 54 is provided in such a posture that the axial center of the through hole 542 is oriented vertically. The reason is that the drinking water W passes through the through-hole 542 of the orifice 54 after the air A has passed. However, if the axial center of the through-hole 542 of the orifice 54 is in a lateral orientation, A part of the air A that has passed through the stagnation stays around the through-hole 542, thereby inhibiting the subsequent passage of the drinking water W and possibly causing a phenomenon that the resistance loss of the orifice 54 becomes unstable. Because there is. Moreover, it is also for preventing the propagation of various bacteria by the remaining air A.

  The orifice 54 has a specific weight when air A, drinking water W, or a mixture thereof flowing into the through hole 542 of the main body 541 connected to the exhaust pipe 53 at a speed v4 passes through the through hole 542. A pipe resistance proportional to the size is given. For example, the pipe resistance when drinking water W passes through the through hole 542 is approximately 1000 times the pipe resistance when air A passes through the through hole 542. In the case of a mixture of drinking water W and air A, an intermediate pipe resistance is given by their ratio. Thereby, the air A and the mixture easily pass through the through hole 542, but the drinking water W hardly passes through the through hole 542.

  Hereinafter, an operation procedure (steps S51 to S54) of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the sixth embodiment will be described. Before entering the step S51, the bottle holder 2 of the water server 1 is opened and the bag body 4 is supported in a substantially standing posture on the support portion 7 in a state like the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In step S51, supply of the drinking water W from the bag body 4 into the cold water tank 5 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 is removed from the needle 8. It is discharged into the hose 9. The drinking water W discharged to the hose 9 is further supplied to the convex portion 101 of the cold water tank 5 through the line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  By the way, in the initial state, the water supply port 11 of the cold water tank 5 and the water supply port 12 of the hot water tank 6 are both closed. Then, even if it is going to supply drinking water W into the cold water tank 5 and the warm water tank 6 from the convex part 101, since both a large amount of air A is contained in the cold water tank 5 and the warm water tank 6, both tanks 5 , 6 is difficult to supply drinking water W. Therefore, in step S52, when only the water supply port 12 of the hot water tank 6 is opened, the air A in the cold water tank 5 flows out from the convex portion 101 through the communication pipe 102 into the hot water tank 6. The air A flowing out into the hot water tank 6 is discharged to the outside from the water supply port 12 through the discharge pipe 63. For this reason, the drinking water W comes to be supplied into the cold water tank 5 from the gap between the convex portion 101 and the communication pipe 102.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the water supply port 12, so that the water supply port 12 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  Thus, when the drinking water W is supplied into the cold water tank 5, the initial air in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 can be quickly brought into an airless state. After that, the water inlet 12 is closed.

  By the way, it is assumed that air A is slightly mixed in the cold water tank 5 for some reason. At this time, the liquid level in the cold water tank 5 should still be high. Therefore, in step S53, drinking water is taken out with the liquid level in the cold water tank 5 being high. At this time, the water supply port 11 is opened. Then, the drinking water W moves in the drainage pipe 51, and the air A intervening in the upper part of the cold water tank 5 flows through the exhaust pipe 53 and the orifice 54 by the flow of the drinking water W in the drainage pipe 51. The phenomenon of being pulled to the tube 52 occurs.

  Eventually, when the air A in the cold water tank 5 decreases, a phenomenon in which a small amount of drinking water W is drawn to the venturi 52 by being mixed with the air A from the exhaust pipe 53 will occur. At this time, the mixture of the air A and the drinking water W passes through the orifice 54, but its specific weight is close to that of the air A, so the resistance loss of the orifice 54 is almost the same as that for the air A. You may think. Therefore, a phenomenon in which the mixture of the air A and the drinking water W interposed in the upper part of the cold water tank 5 is easily drawn by the venturi pipe 52 at the connection portion of the drainage pipe 51 through the exhaust pipe 53 and the orifice 54. ing. As a result, the air A accumulated in the cold water tank 5 is quickly exhausted to the outside together with the drinking water W.

  In step S54, the drinking water W is taken out when the inside of the cold water tank 5 is almost full. That is, it is assumed that the liquid level in the cold water tank 5 has further increased and has risen to the vicinity of the upper part. Then, the drinking water W moves in the drainage pipe 51, and the flow of the drinking water W in the drainage pipe 51 almost eliminates the air A interposed in the upper part of the cold water tank 5. A phenomenon of being pulled to the venturi pipe 52 through the exhaust pipe 53 and the orifice 54 occurs.

  At this time, only the drinking water W passes through the orifice 54, but its specific weight is 1000 times the specific weight of air, so the resistance loss of the orifice 54 is also 1000 times the resistance loss of the air A. Can be easily understood. Therefore, it is difficult for the drinking water W interposed in the upper part of the cold water tank 5 to be drawn by the venturi pipe 52 through the exhaust pipe 53 and the orifice 54. As a result, the drinking water W from near the upper part in the cold water tank 5 is not easily drained to the outside.

  And when it will be in an airless state again, the water supply port 11 is closed. Thereafter, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a glass or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. It is.

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again. Thus, the needle 8 is pulled out of the bag body 4 in the state of the bottle holder 2 ′. And after setting another bag body 4 in a predetermined position, water supply can be performed now by repeating said each step S1-S4 again in order.

  As described above, according to the sixth embodiment, the convex portion 101 that supplies the drinking water W from the bag body 4 to the cold water tank 5 is provided near the top of the cold water tank 5, and the convex portion 101 and the hot water are provided. A communication pipe 102 communicating with the inside of the tank 6 in a descending manner, and air A or drinking water W discharged from the cold water tank 5 through the communication pipe 102 into the hot water tank 6 is near the top of the hot water tank 6. When the drinking water W is supplied from the bag body 4 into the cold water tank 5, the air A in the cold water tank 5 is compressed, and the compressed air A is communicated with the communication pipe 63. The hot water tank 6 is discharged into the hot water tank 6 through the pipe 102, and the air A discharged into the hot water tank 6 is discharged from the hot water tank 6 to the outside through the discharge pipe 63. As a result, particularly in the initial state, the time until the inside of the cold water tank 5 and the hot water tank 6 is in an airless state can be greatly shortened.

  In addition, according to the sixth embodiment, the drain pipe 51 that discharges the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 and the air A in the cold water tank 5 are squeezed from the convex portion 101. And a drainage pipe 51 connected to the drainage pipe 53 so that the drainage pipe 51 is connected to the drainage pipe 53, so that the beverage near the top of the cold water tank 5 can be used from the exhaust pipe 53 in use. It becomes difficult to suck the water W. Therefore, since the relatively cold drinking water W near the bottom of the cold water tank 5 can be discharged out of the cold water tank 5 without being mixed with the relatively warm drinking water W near the top, the cooling efficiency can be improved. .

  By the way, depending on the size of the pipe resistance, restrictions on arrangement, etc., the liquid level in the cold water tank 5 does not rise forever, and the head difference from the liquid level to the venturi pipe 52 may be hardly taken. . Therefore, as in Modification 1 shown in FIG. 19, the drainage pipe 51 is once raised between the drainage part 56 for drinking water W and the venturi pipe 52 near the bottom of the cold water tank 5. Then lower it. Thereby, the temporary storage part 55 of the drinking water is formed in the drainage pipe 51, for example in reverse U shape. Reference numeral H <b> 1 is the height of the reservoir portion 55, but it is preferable that the top portion is set below the ceiling of the cold water tank 5 and above the bottom portion, and the Venturi tube 52 is set slightly below the tank bottom portion.

  According to the first modification, the drinking water W is supplied from the bag body 4 to the cold water tank 5 through the needle 8 and the like. The drinking water W that has entered the cold water tank 5 is discharged from the discharge portion 56 of the drain pipe 51 near the bottom of the tank 5. The drinking water W discharged from the discharge portion 56 passes through the pool portion 55 and is discharged from the drainage pipe 51 through the venturi pipe 52.

  Therefore, if the height H1 of the reservoir 55 is set below the ceiling in the cold water tank 5 and above the bottom, the liquid level in the cold water tank 5 rises even if the water supply port 11 is opened. The drinking water W is not discharged until H≈H1. Even at this time, since the water is supplied from the bag body 4 through the needle 8 or the like, the air A in the cold water tank 5 is compressed. Therefore, only air A is exhausted through the exhaust pipe 53.

  Eventually, when the liquid level in the cold water tank 5 rises and the head difference H≈H1, the drinking water W that has entered the cold water tank 5 is discharged from the drain pipe 51 through the venturi pipe 52. At this time, the air A in the cold water tank 5 is discharged by being sucked from the exhaust pipe 53 to the venturi pipe 52 through the orifice 54.

  And the drinking water W will accumulate in the cold water tank 5 until it exceeds the accumulation part 55, but when the accumulated drinking water W is extracted from the tank 5, since the accumulation part 55 works as a siphon, the tank 5 There is very little residual liquid inside.

  As described above, in the first modification, the drainage pipe 51 is once raised between the drainage part 56 and the venturi pipe 52 of the drinking water W in the vicinity of the bottom of the cold water tank 5, and then lowered. Since a temporary reservoir 55 for drinking water is formed, a liquid level in the cold water tank 5 is secured, and a certain head difference H can be obtained between the liquid level and the venturi pipe 52.

(Embodiment 7 of the first invention)
By the way, since the bag body 4 and the cold water tank 5 are slightly depressurized in order to extract the air A from the bag body 4 and the cold water tank 5, the hot water tank 6 communicating therewith is also slightly depressurized. In the hot water tank 6 under this reduced pressure, the hot water heated to about 80 to 90 ° C. boiled, and the boiled hot water may flow back through the communication pipe 102 and enter the bag body 4 or the cold water tank 5. . Thereby, especially the cooling efficiency in the cold water tank 5 falls, and there also existed a malfunction that it became contrary to the request | requirement of energy saving in this case.

  FIG. 20 is a conceptual diagram of the air vent structure of the cold water tank 5 and the hot water tank 6 according to the seventh embodiment, and FIG. 21 is a perspective view of the vortex diode 62. In the seventh embodiment, in order to eliminate the above-described problem, a vortex diode 62 as a fluid element that increases the line resistance compared to the supply time when the drinking water W flows backward is provided in the communication pipe 102 as shown in FIG. Provided. Detailed description of elements common to those in the first to sixth embodiments is omitted.

  21, the vortex diode 62 corresponds to a cylindrical main body 621, a first nozzle 623 connected in a tangential direction on the circumferential surface of the main body 621, and an upper end surface (one end surface) of the main body. ) And a second nozzle 622 connected in the central axis direction.

  In this vortex diode 62, when drinking water flows in from the first nozzle 623 connected in the tangential direction on the peripheral surface of the cylindrical main body 621, a vortex is formed, and centrifugal force thereby acts to act as a central pressure. As a result, the resistance is increased. Conversely, when drinking water flows in from the second nozzle 622 connected in the central axis direction of the one end surface of the main body 621, a vortex is not formed and only a small shape resistance is generated. In this manner, the vortex diode 62 has a resistance that increases when a fluid flows in from one side, and extremely decreases when a fluid flows in from the other side. Therefore, the vortex diode 62 performs a function similar to a diode in an electric system.

  The vortex diode 62 is arranged such that the upper and lower end surfaces of the main body 621 and the first nozzle 623 are oriented sideways, and the second nozzle 622 is oriented upward. The reason for this arrangement is that a part of the air that has passed first does not remain in the main body 621, and then does not prevent drinking water from flowing into the second nozzle and passing through the main body 621. This is to reliably prevent the occurrence of a phenomenon that makes the flow of drinking water in the diode 62 unstable.

  22A and 23A are explanatory diagrams (side views) showing an operation procedure (steps S61 to S64) of the vortex diode 62, and FIGS. 22B and 23B are explanatory diagrams showing an operation procedure (steps S61 to S64) of the vortex diode 62. Is a plan view). This will be described below. Before entering step S61, the bottle holder 2 of the water server 1 is opened and the bag body 4 is supported in a substantially standing posture on the support portion 7 in the state of the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In step S61, the supply of drinking water from the bag body 4 into the cold water tank 5 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water itself filled in the bag body 4 act simultaneously, so that the drinking water in the bag body 4 is transferred from the needle 8 to the hose 9. It is discharged inside. The drinking water discharged to the hose 9 is further supplied to the convex portion 101 through the line 10.

  The drinking water supplied to the convex portion 101 is supplied as it is to the cold water tank 5 and stored in the cold water tank 5. The stored drinking water is maintained at a temperature of about 4 to 10 ° C. in the cold water tank 5 by being cooled by the cooling means 50. Further, the air accumulated in the cold water tank 5 is discharged into the hot water tank 6 through the communication pipe 102, so that the inside of the cold water tank 5 is in an airless state. At this time, the inside of the cold water tank 5 may be slightly decompressed.

  Here, since the vortex diode 62 is interposed and connected in the middle of the communication pipe 102, the air from the cold water tank 5 is discharged into the hot water tank 6 through the vortex diode 62. Drinking water supplied from the bag 4 or the cold water tank 5 is also supplied into the hot water tank 6 via the vortex diode 62.

  At this time, as shown in FIGS. 22A and 22B, the drinking water flows around the axis of the main body 621 from the second nozzle 622 connected to the communication pipe 102 (A1 in FIGS. 22A and 22B). Then, the drinking water flows outward in the radial direction within the main body 621 (B1 in FIGS. 22A and 22B) and flows out from the first nozzle 623 in the tangential direction (C1 in FIGS. 22A and 22B). ). Then, it begins to flow from the first nozzle 623 again into the hot water tank 6 through the communication pipe 102. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  In step S62, drinking water is supplied in a state where the liquid level in the hot water tank 6 is low. That is, initially there is no drinking water in the hot water tank 6, but when drinking water enters the hot water tank 6 from the bag body 4 or the cold water tank 5 through the communication pipe 102 as described above, The liquid level gradually increases. At this time, since the hot water tank 6 is connected to the water supply port 12 through the discharge pipe 63, the air accumulated in the hot water tank 6 is discharged to the outside by opening the water supply port 12. In this way, the inside of the hot water tank 6 is also in an airless state, but if the water supply port 12 is closed after that, the hot water tank 6 may be slightly decompressed.

  In step S63, drinking water is supplied in a state where the liquid level in the hot water tank 6 is high. That is, it is assumed that the drinking water supplied in the hot water tank 6 is stored in the hot water tank 6 and heated to about 80 to 90 ° C. by the heating means 60 here. Then, the heated drinking water boils in the hot water tank 6 that has been slightly depressurized, and the drinking water moves in the reverse direction in the communication pipe 102 and tries to flow backward in the vortex diode 62. Suppose that happened.

  At this time, as shown in FIGS. 23A and 23B, the drinking water boiled in the hot water tank 6 flows in the tangential direction from the outer periphery of the main body 621 from the first nozzle 623 connected to the communication pipe 102 (FIGS. 23A and 23B). A2) in 23B. Then, since the drinking water generates a vortex in the main body 621, it is difficult for the drinking water to flow inward in the radial direction (B2 in FIGS. 23A and 23B), and further, it is difficult to flow out of the second nozzle 622 around the axis. (C2 in FIGS. 23A and 23B). Accordingly, the vortex formed in the main body 621 makes the resistance extremely large and makes it difficult for the drinking water to flow backward.

  In step S64, the drinking water cooled in the cold water tank 5 and the drinking water warmed in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the water supply ports 11 and 12, respectively. It is.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, The needle 8 is pulled out of the bag body 4 in the state of being the bottle holder 2 ′. Then, after another bag 4 is set at a predetermined position, water can be supplied by repeating the steps S61 to S64 again in order.

  As described above, according to the seventh embodiment, the communication pipe 102 is provided with the vortex diode 62 as a fluid element that increases the line resistance when the drinking water W flows backward than when it is supplied. Since the drinking water W from the cold water tank 5 is directly supplied to the hot water tank 6 and hardly flows back, the heating efficiency and the cooling efficiency in the cold water tank 5 are not reduced as in Patent Documents 3 and 4, It will meet the demand for energy saving.

  Moreover, unlike the case where a backflow prevention valve is provided, the backflow prevention valve becomes a resistance and does not obstruct the flow of the drinking water W, and the maintenance thereof is also unnecessary. Moreover, like the case where a coil part, a U-seal part, etc. are provided, the coil part, the U-seal part, etc. become resistance and do not hinder the flow of drinking water W, and air A stays there. Disappears. Therefore, even when the airless structure is adopted, the backflow of the drinking water W from the hot water tank 6 to the bag body 4 and the cold water tank 5 can be suppressed, and stable liquid supply can be performed at all times.

  Incidentally, in the seventh embodiment, the vortex diode 62 is used as the fluid element. However, the vortex diode 62 ′ according to the second modification is a further improvement of the vortex diode 62. In the following description, the vortex diode 62 is replaced with the vortex diode 62 'in FIG. However, since elements common to the seventh embodiment are as described above, detailed description thereof is omitted.

  In the water server 1 according to the second modification, as shown in FIG. 20, drinking water to the hot water tank 6 is supplied via an improved vortex diode 62 ′ as a fluid element in the middle of the water. ing.

  FIG. 24 is a perspective view of a vortex diode 62 ′ according to the second modification.

  As shown in FIG. 24, the vortex diode 62 ′ includes a cylindrical main body 621, a first nozzle 623 connected in a tangential direction on the peripheral surface of the main body 621, and a central axis direction on the upper end surface of the main body. The second nozzle 622 and at least one guide fin 624 disposed in place in the main body 621 are provided.

  The vortex diode 62 ′ is also arranged so that the upper and lower end surfaces of the main body 621 and the first nozzle 623 face sideways, and the second nozzle 622 faces upward. In addition to the above reason, this arrangement is used in order to prevent air from remaining around the guide fins 624 in the case of the vortex diode 62 '.

  In the vortex diode 62 ′, the drinking water supplied from the second nozzle 622 flows into the main body 621, is guided by the guide fins 624 in the main body 621, and then flows out from the first nozzle 623. At that time, since the vortex is less easily formed in the main body 621, the resistance is further reduced. On the other hand, the drinking water that has flowed into the main body 621 in the opposite direction from the first nozzle 623 tends to flow out of the second nozzle 622 against the guiding direction of the guide fins 624 in the main body 621. At that time, since the vortex is more easily formed, the resistance is further increased.

  FIGS. 25A and 26A are explanatory diagrams (side views) showing an operation procedure (steps S71 to S74) of the vortex diode 62 ′, and FIGS. 25B and 26B are explanations showing an operation procedure (steps S71 to S74) of the vortex diode 62 ′. It is a figure (plan view). This will be described below. Before entering the step S71, the bottle holder 2 of the water server 1 is opened, and the bag body 4 is supported in a substantially standing posture on the support portion 7 in the state of the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In step S71, the supply of drinking water from the bag body 4 into the cold water tank 5 and the hot water tank 6 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water itself filled in the bag body 4 act simultaneously, so that the drinking water in the bag body 4 is transferred from the needle 8 to the hose 9. It is discharged inside. The drinking water discharged to the hose 9 is further supplied to the convex portion 101 through the line 10.

  The drinking water supplied to the convex portion 101 is supplied as it is to the cold water tank 5 and stored in the cold water tank 5. The stored drinking water is maintained at a temperature of about 4 to 10 ° C. in the cold water tank 5 by being cooled by the cooling means 50. Further, the air A accumulated in the cold water tank 5 is discharged into the hot water tank 6 through the communication pipe 102, whereby the inside of the cold water tank 5 is in an airless state. At this time, the inside of the cold water tank 5 may be slightly decompressed.

  Here, since the vortex diode 62 'is interposed and connected in the middle of the communication pipe 102, the air from the cold water tank 5 is discharged into the hot water tank 6 via the vortex diode 62'. Drinking water supplied from the bag 4 or the cold water tank 5 is also supplied into the hot water tank 6 via the vortex diode 62 '.

  At this time, as shown in FIGS. 25A and 25B, the drinking water flows around the axis of the main body 621 from the second nozzle 622 connected to the communication pipe 102 (A1 in FIGS. 25A and 25B). Then, the drinking water is guided by the guide fins 624 in the main body 621 and flows outward in the radial direction (B1 in FIGS. 25A and 25B) and flows out tangentially from the first nozzle 623 (FIG. 25A, C1 in FIG. 25B). Then, it begins to flow from the first nozzle 623 again into the hot water tank 6 through the communication pipe 102. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  In step S72, drinking water is supplied in a state where the liquid level in the hot water tank 6 is low. That is, initially there is no drinking water in the hot water tank 6, but when drinking water enters the hot water tank 6 from the bag 4 or the cold water tank 5 as described above, the liquid level gradually increases. Become. At this time, since the hot water tank 6 is connected to the water supply port 12 through the discharge pipe 63, the air A accumulated in the hot water tank 6 is discharged to the outside by opening the water supply port 12. 6 is also airless. At that time, the pressure may be slightly reduced.

  In step S73, drinking water is supplied in a state where the liquid level in the hot water tank 6 is high. That is, it is assumed that the liquid level in the hot water tank 6 has increased to some extent, and the drinking water supplied into the hot water tank 6 has been heated to about 80 to 90 ° C. by the heating means 60. The heated drinking water boils in the hot water tank that has been slightly depressurized, and the drinking water moves in the reverse direction in the communication pipe 102, causing a phenomenon that the drinking water tries to flow backward in the vortex diode 62 ′. Shall happen.

  At this time, as shown in FIGS. 26A and 26B, the drinking water boiled in the hot water tank 6 flows in the tangential direction from the outer periphery of the main body 621 from the first nozzle 623 connected to the communication pipe 102 (FIGS. 25A and 25B). A2) in 25B. Then, the drinking water flows in the main body 621 against the guiding direction of the guide fins 624, but at this time, a vortex is generated, so that it becomes more difficult to flow inward in the radial direction (in FIGS. 25A and 25B). B2) Further, the second nozzle 622 becomes more difficult to flow around the axis (C2 in FIGS. 25A and 25B). Therefore, in the main body 621, the resistance is further increased by the generation of vortices, and the drinking water is less likely to flow backward.

  In step S74, the drinking water cooled in the cold water tank 5 and the drinking water warmed in the hot water tank 6 are poured into a glass (not shown) by a predetermined amount by opening and closing the water supply ports 11 and 12, respectively. It is.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, The needle 8 is pulled out of the bag body 4 in the state of being the bottle holder 2 ′. And after setting another bag body 4 in a predetermined position, water supply can be performed now by repeating said each step S71-S74 again in order.

  According to the second modification, the backflow of drinking water from the hot water tank 6 to the bag body 4 can be further suppressed, and more stable water supply can be performed.

  In the sixth embodiment, the venturi pipe 52 is provided at the connection portion between the drain pipe 51 and the exhaust pipe 53. However, when the head difference H is large, the venturi pipe 52 is omitted. You can also As a result, the structure becomes relatively simple, and further cost reduction can be achieved.

  In the sixth embodiment, the orifice 54 is exemplified as the throttle portion, but other throttle portions such as a miniature valve may be used. However, it is preferable to fix the miniature valve so that it is not operated by mistake.

  In the seventh embodiment, the vortex diode 62 (62 ′) as a fluid element is provided in the communication pipe 102 between the cold water tank 5 and the hot water tank 6, but either of the tanks 5 and 6 is provided. May be provided. In that case, it is good also as integrating with a tank. For example, in FIGS. 1A and 1C, a vortex diode 62 ″ is provided at the lower end (open end) of the communication pipe 102 in the hot water tank 6. In this case, it is easy to secure a space for installing the vortex diode 62 ″. There is. Further, in the vortex diode 62 ″, a plurality of the first nozzles 623 are arranged so as to be symmetric with respect to the second nozzle 622 (four in the figure, but not limited thereto). Since the flow of the air A or the drinking water W in the hot water tank 6 is less likely to be biased, there is no possibility of hindering natural convection in the hot water tank 6, so that there is a merit such as improving thermal efficiency.

  Moreover, in the said Embodiment 1-7, although the convex part 101 is made to protrude from the top part of the cold water tank 5, the vicinity of the top part of the cold water tank 5 is good also as the convex part 101 as it is. Moreover, when the line 10 is separated, the notch 103 at the upper end of the communication pipe 102 may be omitted.

  Moreover, a line heater 6 ′ provided instead of the hot water tank 6 may be used as in the third modification shown in FIG. 27. In the line heater 6 ′, the drinking water supplied from the communication pipe 102 is directly heated by the electric heating unit 60 ′ in the line heater 6 ′ to be heated to be discharged from the discharge pipe 63. Then, by incorporating a vortex ode 62 (62 ') similar to the above in the middle of the communication pipe 102, it is possible to eliminate the possibility that the liquid supplied from the communication pipe 102 will flow backward. Note that the line heater 6 'may be one in which the casing is oriented vertically as shown in FIG. 27, but may be one in which the casing is oriented sideways. Furthermore, the second container may be a heat exchanger that can use a heat source other than electricity, such as steam, and in this case, the present invention can be applied in the same manner as described above.

  In addition, although the drinking water W is illustrated as a liquid in the said Embodiments 1-7, all liquids, such as juice and liquor, may be sufficient as other liquids (it is not limited to the liquid for drinks). Further, in order to prevent local retention of the air at the time of air bleeding or the like, an appropriate inclination or radius may be provided in each tank or each line. Moreover, it cannot be overemphasized that said Embodiment 1-7 may be combined suitably. In that case, it is needless to say that any one of the bag body 4, the cold water tank 5, the hot water tank 6, and the needle 8, the communication pipe 102, etc. may be omitted as necessary.

(Embodiment 1 of the second invention)
Hereinafter, FIGS. 1 to 13 in the embodiment of the second invention are read as FIGS. 29 to 41 in the brief description of the drawings. FIG. 1 is a side view schematically showing the overall configuration of a water server 1 according to Embodiment 1 of the second invention. In the figure, the left side shows the front and the right side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 sets a bag body (corresponding to a first container) 4 containing drinking water as a liquid inside, or on the main body 3 in order to take out the set bag body 4 to the outside. It is attached so that it can be opened and closed (reference numeral 2 in FIG. 1 indicates a closed state, and reference numeral 2 ′ indicates an open state). 5) and a hot water tank (corresponding to a second container) 6 for warming drinking water are arranged one above the other. When the height of the main body 3 is limited, the cold water tank 5 and the hot water tank 6 may be arranged in parallel.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, and can be deformed by shrinking as the drinking water filled therein decreases. And in the initial state filled with drinking water, it is roundish as a whole and has a slightly flat hexahedral shape. Here, the bag body 4 is supported by the support portion 7 in a substantially standing posture. The shape of the bag body 4 in the initial state may be another shape such as a square or a cylindrical shape.

  The support portion 7 is provided with a relatively large radius from the back to the front so as not to obstruct the reduction deformation of the bag body 4 as much as possible, and is provided with a relatively small radius at the front. The bag 4 can be set so as to be reduced and deformed without excessive twisting when the drinking water filled in the bag 4 is taken out between the two rounds. Although not shown in the figure, appropriate rounds are provided on both the left and right sides of the support portion 7 to achieve the same effect.

  The bag body 4 supported by the support portion 7 can be pierced in the vicinity of the bottom surface on the front side thereof by sticking the needle 8 as a rod-like member horizontally or slightly downward so that a hole is formed in the portion. it can. The needle 8 is attached to the support portion 7 on the front side and pierces the bag body 4.

  And the drinking water taken out from the bag body 4 through the flexible hose 9 made of, for example, silicon rubber connected to the base portion of the needle 8 and the line 10 further connected to the hose 9 is supplied to the cold water tank 5. And the hot water tank 6 are respectively supplied.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water, and the drinking water supplied from the bag body 4 is cooled by the cooling means 50, whereby the cold water tank 5. The temperature is maintained at about 4 to 10 ° C.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water, and the drinking water supplied from the bag body 4 is heated by the heating means 60. The hot water tank 6 is maintained at a temperature of about 80 to 90 ° C.

  Further, the drinking water cooled in the cold water tank 5 and the drinking water warmed in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. It has become.

  2-4 is explanatory drawing which shows the structure of the needle | hook which concerns on this Embodiment 1, and its operation | movement 1-3, (a) is a top view, (b) is AA sectional drawing in (a), (C) is BB sectional drawing in (a), (d) is C arrow line view in (b).

  As shown in FIGS. 2 and 3 (a) to (d), the needle body 81 of the needle 8 includes a spire-shaped tip portion 811 and a substantially cylindrical intermediate portion 812 fixed to the tip portion 811. A base portion 813 further fixed to the intermediate portion 812 is formed. By using a material made of a synthetic resin having good adhesion to the bag body 4 as a material of at least a portion in contact with the bag body 4 in the distal end portion 811 of the needle body 81, a hole formed in the bag body 4 is used. The leakage of drinking water can be reduced as much as possible. As a result, there is no need to provide extra attachment means such as a ring or a flange around the hole of the bag body 4.

  An opening 814 is formed on the side surface of the distal end portion 811. Although the specific shape, position, and number of the openings 814 are arbitrary, it is preferable to provide a plurality of substantially triangular or trapezoidal shapes at the tip as much as possible. The opening 814 communicates with a cock 816 as an opening / closing means formed in the base portion 813 through a passage 815 formed around the axis (horizontal axis) of the distal end portion 811 and communicates with the hose 9 and the line 10. It constitutes a passage.

  The cock 816 is formed to rotate around a vertical axis orthogonal to the horizontal axis so that the flow path is closed or opened and bent downward. A connection portion 817 of the hose 9 is provided. Further, in order to rotate the cock 816, an operating lever 818 as an operating means is attached to the upper portion of the cock 816. This operating lever 818 regulates the movement range of the needle body 81 by engaging with a needle guide 82 described later. It also serves as a stopper to stop. Note that the left and right side surfaces of the intermediate portion 812 may be provided with a steady rest that does not cause a rotation operation during the movement.

  The operation lever 818 extends in a predetermined direction with respect to the longitudinal axis of the base 813 and has a convex cross section. When the needle 8 is pierced, the operation lever 818 performs a pushing operation and a clockwise rotation operation. When pulling back to its original state, the operation lever 818 is rotated counterclockwise and pulled back. Note that a button 826 may be provided near the operation lever 818, and the needle main body 81 may be prevented from moving without permission by pressing the button 826 when operating the operation lever 818. Here, when the needle main body 81 is moved manually as in the first embodiment, it is originally unthinkable that the needle main body 81 freely moves. By adding more, it is intended to ensure safety in the event of an emergency.

  As shown in FIGS. 2 and 3 (a) to (d), the needle guide 82 of the needle 8 is a deformed shape attached to the front on the support portion 7 so that its central portion protrudes in plan view. A housing 823, a through hole 821 that penetrates the housing 823 in the front-rear direction, and a shallow groove 822 that is recessed in the upper surface of the housing 823 are provided. Note that the protruding shape of the housing 823 is intended to facilitate the close contact of the bag body 4 supported in a standing posture on the support portion 7, thereby making it easier to pierce the needle 8.

  As shown in FIGS. 4A and 4B, the through-hole 821 is formed to insert the needle body 81 slidably in the front-rear direction, and the shallow groove 822 has a movement of the operation lever 818 at the upper part thereof. It was formed to regulate the range. For this reason, the shallow groove 822 has a rectangular shape that is deflected and arranged from the vicinity of the center of the upper surface of the housing 823 toward the right side, and a through groove 822a that communicates with the through hole 821 is formed in the vicinity of the center. Yes. The through groove 822a has a circular shape slightly larger than the maximum shaft diameter of the longitudinal axis 819 so that the front end side thereof allows rotation of the longitudinal axis 819, while the longitudinal axis extends from the middle to the rear end side. The long shape is narrower than the maximum shaft diameter of the longitudinal axis 819 so as to inhibit the rotation of the shaft 819.

  Then, the needle body 81 is in a state of being inserted through the through hole 821. At this time, the hose connection portion 817 is fitted in the through hole 821 so as to be able to advance and retreat, the lower portion of the operation lever 818 is in the shallow groove 822, and the longitudinal axis 819 is inserted into the through groove 822a. Yes.

  The operation will be described below. Now, with the bottle holder 2 of the water server 1 opened, the bag body 4 is supported in a substantially standing posture on the support portion 7 in the state of the bottle holder 2 ', so that the bag body 4 is brought into a predetermined position. Assume that it is set.

  Next, the needle body 81 of the needle 8 is set on the needle guide 82 attached to the support portion 7. At this time, the tip portion 811 of the needle body 81 and the bag body 4 supported by the support portion 7 are not in contact at all. At this time, the operation lever 818 is in front of FIG. 2A, and the tip of the operation lever 818 is on the right side, so that the cock 816 of the needle body 81 blocks the passage 815.

  Next, the user manually operates the operation lever 818 so that the operation lever 818 is pushed in the X direction in FIG. Then, the needle body 81 slides in the through hole 821 of the needle guide 82 and moves to the back side in FIG. 2A, and the tip portion 811 and the bag body 4 come into contact with each other.

  Next, when the front end 811 of the needle body 81 breaks through the front lower side of the bag body 4 and reaches the inside thereof, the longitudinal axis 819 of the operating lever 818 of the needle body 81 interferes with the through groove 822a. The main body 81 does not advance any further. Then, the tension acting in the direction in which the bag body 4 shrinks and the gravity of the drinking water itself filled in the bag body 4 act simultaneously, so that the drinking water in the bag body 4 becomes the tip of the needle body 81. It flows out from the opening 814 of the part 811. The drained drinking water does not flow out to the hose connection portion 817 because the passage 815 is blocked by the cock 816.

  Therefore, the user manually operates the operation lever 818 by rotating it in the R direction in FIG. At this time, since the vertical axis 819 of the operation lever 818 is on the front end side of the through groove 822a, the rotation of the vertical axis 819 is allowed. Then, the drinking water that has flowed out from the opening 814 of the distal end portion 811 of the needle body 81 flows into the hose connection portion 817 without the passage 815 being blocked by the cock 816. Then, it is discharged into the hose 9. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state.

  The drinking water discharged to the hose 9 is further supplied to the cold water tank 5 and the hot water tank 6 through the line 10. The drinking water cooled in the cold water tank 5 and the drinking water heated in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, The needle 8 is pulled back to the original state in the state of the bottle holder 2 '. That is, the user manually operates the operation lever 818 by rotating the operation lever 818 in the direction opposite to the R direction in FIG. Also at this time, since the vertical axis 819 of the operation lever 818 is on the front end side of the through groove 822a, the rotation of the vertical axis 819 is allowed. Then, the passage 815 of the needle body 81 is blocked again by the cock 816.

  Next, the needle 8 is pulled out from the bag body 4. That is, the user manually operates the operation lever 818 so that the operation lever 818 is pulled in the direction opposite to the X direction in FIG. Then, the needle body 81 slides in the through hole 821 of the needle guide 82, and the distal end portion 811 and the bag body 4 are separated from each other. And after setting another bag body 4 to a predetermined position, water supply can be performed now by repeating the said operation | movement in order again.

  As described above, according to the water server 1 of the first embodiment, the needle body 8 is pierced into the bag body 4 with the bag body 4 set in a predetermined position, whereby the distal end portion 811 of the needle body 81 is inserted. Since the drinking water W can be supplied to the cold water tank 5 through the passage 815 communicating with the opening 814, the needle 8 can be pulled out from the bag body 4 when the passage 815 is closed. When the drinking water W in the bag body 4 is used up and replaced with another bag body 4, the passage 815 is closed and the air A does not flow into the bag body 4. Therefore, it is convenient that the cold water tank 5 is filled with water when the bag body 4 is replaced, and the bag body 4 can be used as it is without taking time for air bleeding or the like after the bag body 4 is replaced.

  Further, an operation lever 818 as an operation means for performing an operation of inserting the needle 8 into the bag body 4 and an operation of pulling out the needle 8 from the bag body 4 and a cock 816 as an opening / closing means for opening and closing the passage 815. When the operation lever 818 is used to pierce the needle 8 into the bag body 4, the passage 815 can be opened by the cock 816, while the passage 815 is closed by the cock 816. However, since the operation lever 818 is configured to enable the operation of pulling out the needle 8 from the bag body 4, it is possible to reliably prevent a situation in which the airless state cannot be maintained due to an erroneous operation. In this case, no complicated electrical elements are required, and this is in line with the current demand for energy saving, and cost reduction can be realized.

  Further, since the needle 8 is pierced near the bottom surface of the bag body 4 in a direction parallel to or downward from the bottom surface, the remaining liquid in the bag body 4 is reduced as compared with the conventional vertical needle needle or the like. There are merits such as.

  In addition, it is provided with a blocking mechanism that prevents the needle 8 from appearing or retracting manually or automatically, and when the manual operation or automatically retracting, the blocking mechanism is released manually. Therefore, there is no possibility that the needle 8 will appear and disappear without permission.

  In addition, by making a hole in the bag body 4 with the needle 8, the drinking water that has entered the bag body 4 through the needle 8 can be reliably transferred to the cold water tank 5 and the hot water tank 6 in the bag body 4. Can send.

  Thereby, not only the drinking water W that has entered the bag body 4 but also the drinking water W stored in the cold water tank 5 and the hot water tank 6 to which it is sent are included in the mixed air. Possible breeding of various germs can be suppressed as much as possible.

(Embodiment 2 of the second invention)
FIG. 1 is also a side view schematically showing the overall configuration of a water server 1 according to Embodiment 2 of the second invention. Therefore, in this Embodiment 2, the same number is attached | subjected to the element which is common in Embodiment 1, and the detailed description is abbreviate | omitted.

  5-7 is explanatory drawing which shows the structure of the needle | hook which concerns on this Embodiment 2, and its operation | movement 1-3, (a) is a top view, (b) is DD sectional drawing in (a). is there.

  As shown in FIGS. 5 to 7 (a) and 7 (b), the needle body 81 of the needle 8 as a rod-shaped member has a spire-shaped tip portion 811 and a substantially cylindrical intermediate portion fixed to the tip portion 811. 812 and a base part 813 further fixed to the intermediate part 812. By using a material made of a synthetic resin having good adhesion to the bag body 4 as a material of at least a portion in contact with the bag body 4 in the distal end portion 811 of the needle body 81, a hole formed in the bag body 4 is used. The leakage of drinking water can be reduced as much as possible. As a result, there is no need to provide extra attachment means such as a ring or a flange around the hole of the bag body 4.

  An opening 814 is formed on the side surface of the distal end portion 811. Although the specific shape, position, and number of the openings 814 are arbitrary, it is preferable to provide a plurality of substantially triangular or trapezoidal shapes at the tip as much as possible. The opening 814 communicates with a cock 816 as an opening / closing means formed in the base portion 813 through a passage 815 formed around the axis (horizontal axis) of the distal end portion 811 and communicates with the hose 9 and the line 10. It constitutes a passage.

  The cock 816 is formed to rotate around a vertical axis orthogonal to the horizontal axis so that the flow path is closed or opened and bent downward. A connection portion 817 of the hose 9 is provided. In order to rotate the cock 816, a link mechanism 824, 825 and an operation lever (not shown) 818 as an operating means are attached to the lower portion of the cock 816. The link mechanism 824, 825 is a needle guide to be described later. It also serves as a stopper that restricts the range of movement of the needle body 81 by engaging with 82. Note that the left and right side surfaces of the intermediate portion 812 may be provided with a steady rest that does not cause a rotation operation during the movement.

  Unlike the first embodiment, the operation lever 818 is symmetrical with respect to the longitudinal axis of the base portion 813. When the needle 8 is pierced, only the pushing operation is performed to return the needle 8 to its original state. When pulling back, only the pull back operation of the operation lever 818 is performed. Note that a button 826 may be provided near the operation lever 818, and the needle main body 81 may be prevented from moving without permission by pressing the button 826 when operating the operation lever 818. Here, when the needle main body 81 is moved manually as in the second embodiment, it is originally unthinkable that the needle main body 81 freely moves. By adding more, it is intended to ensure safety in the event of an emergency.

  As shown in FIGS. 5A to 7B, the needle guide 82 of the needle 8 has a deformed housing 823 attached so as to protrude forward on the support portion 7 and a housing 823 in the front-rear direction. A through hole 821 penetrating in the direction, a through groove 822 a communicating with the through hole 821, and link mechanisms 824 and 825 are provided.

  The through hole 821 is formed to insert the needle body 81 in a slidable manner in the front-rear direction, and the through groove 822a is formed at the upper part thereof to restrict the movement range of the operation lever 818. For this reason, the through groove 822a has a long shape slightly wider than the maximum shaft diameter of the vertical axis 819 so that the vertical axis 819 is inserted from the front end side to the rear end side.

  The link mechanism is planted at a predetermined position of the housing 823 and allows the pin 824 and the pin 824 to be slidably inserted on one end side, and engages with a cock 816 built in the base 813 on the other end side. The link lever 825 rotates the cock 816 about the vertical axis.

  Then, the needle body 81 is in a state of being inserted through the through hole 821. At this time, the hose connection portion 817 is fitted in the through hole 821 so as to be able to advance and retreat, the lower portion of the operation lever 818 is in the shallow groove 822, and the longitudinal axis 819 is inserted into the through groove 822a. Yes.

  The operation will be described below. Now, with the bottle holder 2 of the water server 1 opened, the bag body 4 is supported in a substantially standing posture on the support portion 7 in the state of the bottle holder 2 ', so that the bag body 4 is brought into a predetermined position. Assume that it is set.

  Next, the needle body 81 of the needle 8 is set on the needle guide 82 attached to the support portion 7. At this time, the tip portion 811 of the needle body 81 and the bag body 4 supported by the support portion 7 are not in contact at all. At this time, the operation lever 818 is in front of FIG. 5A, and in this state, the cock 816 of the needle body 81 blocks the passage 815.

  Next, the user manually operates the operation lever 818 so as to push it in the X direction in FIG. Then, the needle body 81 slides in the through hole 821 of the needle guide 82, and the tip 811 and the bag body 4 come into contact with each other. At this time, by the action of the link mechanisms 824 and 825, the passage 815 is opened by rotating the cock 816 of the needle body 81 by 90 degrees clockwise around the vertical axis.

  Next, when the front end portion 811 of the needle body 81 breaks through the front lower side of the bag body 4 and reaches the inside thereof, the vertical axis of the operating lever 818 of the needle body 81 interferes with the through groove 822a. As shown in FIG. 6A, 81 does not advance any further. Then, the tension acting in the direction in which the bag body 4 shrinks and the gravity of the drinking water itself filled in the bag body 4 act simultaneously, so that the drinking water in the bag body 4 becomes the tip of the needle body 81. It flows out from the opening 814 of the part 811. This outflowing drinking water W flows out to the hose connection portion 817 due to the opening of the passage 815. Then, it is discharged into the hose 9. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state.

  The drinking water discharged to the hose 9 is further supplied to the cold water tank 5 and the hot water tank 6 through the line 10. The drinking water cooled in the cold water tank 5 and the drinking water heated in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12.

  When the drinking water in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with drinking water. At this time, the bottle holder 2 of the water server 1 is opened again, The needle 8 is pulled back to the original state in the state of the bottle holder 2 '. That is, the user manually operates the operation lever 818 so as to pull in the Y direction in FIG. Then, the needle body 81 slides in the through hole 821 of the needle guide 82, and the distal end portion 811 and the bag body 4 are separated from each other. At this time, by the action of the link mechanisms 824 and 825, as shown in FIG. 7A, the cock 816 of the needle body 81 is rotated by 90 degrees counterclockwise about its longitudinal axis. Shut off. At this time, the drinking water W in the passage 815 remains confined. After another bag 4 is set at a predetermined position, water can be supplied by repeating the above operations in order again.

  As described above, according to the water server 1 of the second embodiment, as in the first embodiment, with the bag body 4 set at a predetermined position, the needle 8 is pierced into the bag body 4, The drinking water W can be supplied to the cold water tank 5 through the passage 815 communicating with the opening 814 of the tip 811 of the needle body 81, while the needle 8 is pulled out from the bag body 4 when the passage 815 is closed. Since it is configured to be possible, when the drinking water W in the bag body 4 is used up and replaced with another bag body 4, the passage 815 is closed and the air A flows into the bag body 4. There is no. Therefore, it is convenient that the cold water tank 5 is filled with water when the bag body 4 is replaced, and the bag body 4 can be used as it is without taking time for air bleeding or the like after the bag body 4 is replaced.

  Also, an operation lever 818 as an operation means for performing an operation of piercing the needle 8 into the bag body 4 and an operation of pulling out the needle 8 from the bag body 4, a cock 816 as an opening / closing means for opening and closing the passage 815, The link mechanism 824, 825 is provided, and the operation of the link mechanism 824, 825 enables the passage 815 to be opened by the cock 816 in conjunction with the operation of the needle 8 inserted into the bag body 4 by the operation lever 818. On the other hand, the passage 815 is closed by the cock 816 in conjunction with the operation of pulling out the needle 8 from the bag body 4 by the operation lever 818, so that the operation becomes relatively simple and airless due to an erroneous operation. The situation where the state cannot be maintained can be surely prevented. In this case as well, no complicated electrical elements are required, and this is in line with the recent demand for energy saving, and cost reduction can be realized.

  In the first embodiment, the operation of the operation lever 818 and the opening / closing operation of the cock 816 are directly connected. In the second embodiment, the operation of the operation lever 818 and the opening / closing operation of the cock 816 are linked. Although the mechanisms 824 and 825 are used in conjunction with each other, a rack and pinion mechanism may be used instead of the link mechanisms 824 and 825 or in addition to the link mechanisms 824 and 825. In that case, the opening / closing operation time of the cock 816 can be controlled, which is convenient. Further, in place of the cock 816, opening / closing means having a different structure such as a valve such as a ball valve or a miniature valve, or an electromagnetic valve may be used.

  Of these, the use of a solenoid valve is contrary to the demand for energy saving and requires an electric circuit, which increases costs. In addition, when a solenoid valve is used, the configuration becomes large, so that there are problems in arrangement space and maintenance. However, the electromagnetic valve is not necessarily incorporated into the needle 8 and can be conveniently disposed at an arbitrary position such as the hose 9 or the line 10. In this case, the advance / retreat operation of the main body 81 of the needle 8 may be detected by a micro switch or the like, and the solenoid valve may be turned on / off by the signal. The solenoid valve is preferably closed with no signal from the viewpoint of fail-safe.

  Further, not only the cock but also a valve such as a ball valve or a miniature valve can be arranged at an arbitrary position such as the hose 9 or the line 10 without necessarily being incorporated in the needle 8. In this case, even if manual operation is not possible, remote operation is possible, for example, by providing an extension rod, so that it is possible to meet the demand for energy saving, and an electric circuit is not required, thereby suppressing an increase in cost. .

  In the first and second embodiments, manual operation of the needle 8 by the operation lever 818 is exemplified. However, the needle 8 may be automatically advanced and retracted by a spring, a motor or other actuator. However, when a motor or the like is used, it goes against the demand for energy saving and an electric circuit is required, resulting in an increase in cost. In addition, when a motor or the like is used, the configuration becomes large, and there is a problem of arrangement space and maintenance.

  In the first and second embodiments, the needle 8 is stabbed near the bottom surface of the bag body 4 in a direction parallel to the bottom surface or in a downward direction, but it may be a so-called vertical stab. It is good also as a tip or a piercing. The advance / retreat operation of the needle 8 may be a straight shape or a spiral shape. The spiral advance / retreat operation can be realized by providing a spiral groove in at least one of the needle body 81 or the needle guide 82. Furthermore, a partial spiral structure or a stepped structure may be adopted at the tip of the needle 8 so that the needle 8 can be pierced more reliably into the bag body 4.

(Embodiment 3 of the second invention)
By the way, even if it is not at the time of replacement | exchange of the bag body 4, air may enter into the cold water tank 5 for some reason, and this air needs to be discharged | emitted out of the cold water tank 5. FIG. The inventor of the present invention invented Embodiment 3 to cope with such a case. FIG. 8 is a conceptual diagram of the air vent structure of the cold water tank 5 according to the third embodiment, FIG. 9 is a perspective view of the venturi pipe 52, and FIG. 10 is a perspective view of the orifice 54.

  As shown in FIG. 8, a drain pipe 51 that discharges the drinking water W in the cold water tank 5 from the bottom of the cold water tank 5 in a descending manner and the air A in the cold water tank 5 are discharged from the cold water tank 5. An exhaust pipe 53 for discharging from the vicinity of the top portion is provided, and a connecting portion for connecting the exhaust pipe 53 to the drain pipe 51 at a position lower than the bottom of the cold water tank 5 is provided.

  At this time, according to “Bernouli's theorem” which is an energy conservation law in the fluid, the static pressure in the connection portion of the drainage pipe 51 is larger than that in the cold water tank 5. Only the dynamic pressure due to decreases. The larger the head difference H between the liquid level in the cold water tank 5 and the connection portion of the drainage pipe 51, the faster the flow in the drainage pipe 51. Accordingly, the air A from the exhaust pipe 53 accordingly. It becomes easy to suck. Actually, the head difference is up to the outlet end of the drainage pipe 51, but here, the head difference is made up to the connection portion with a margin. The pipe resistance is negligible.

  The connecting portion is constituted by a venturi tube 52. That is, as shown in FIG. 3, the venturi tube 52 includes a first large diameter portion 521, a reduced diameter portion 522, a small diameter portion 523, an enlarged diameter portion 524, a second large diameter portion 525, and a suction tube 526. And a junction 527. The first large diameter portion 521 is connected to the drain pipe 51 on the cold water tank 5 side, and the second large diameter section 525 is connected to the drain pipe 51 on the water supply port 11 side. The suction pipe 526 is connected at a right angle at the junction 527 of the small diameter part 523, and its tip is connected to the exhaust pipe 53.

  In this venturi pipe 52, the drinking water W that has flowed into the first large diameter part 521 from the drain pipe 51 on the cold water tank 5 side at the speed v1 is guided to the small diameter part 523 while increasing the flow velocity at the reduced diameter part 522. Therefore, the speed is set to v2. Then, since the dynamic pressure in the small diameter portion 523 becomes higher than the dynamic pressure in the drainage pipe 51 described above, the air A from the suction pipe 526 is more easily sucked accordingly. Here, it is assumed that the air A is sucked at the speed v3. The drinking water W that has passed through the small-diameter portion 523 is led from the second large-diameter portion 525 to the drainage pipe 51 on the water supply port 11 side while reducing the flow velocity at the enlarged-diameter portion 524.

  An orifice 54 as a throttle means is provided in the middle of the exhaust pipe 53. That is, as shown in FIG. 10, the orifice 54 includes a main body 541 and a hole 542 that passes through the main body 541, and the diameter of the hole is set according to the passing amount of the air A. The orifice 54 is provided in such a posture that the axial center of the through hole 542 is oriented vertically. After the air A has passed through the through-hole 542 of the orifice 54, the drinking water W will pass. However, if the through-hole 542 of the orifice 54 is set sideways, a part of the air A that has passed first passes through. By staying around the hole 542, subsequent passage of the drinking water W is inhibited. As a result, there is a possibility of causing a phenomenon that the resistance loss of the orifice 54 becomes unstable. Moreover, it is also for preventing the propagation of various bacteria by the remaining air A.

  The orifice 54 has a specific weight when air A, drinking water W, or a mixture thereof flowing into the through hole 542 of the main body 541 connected to the exhaust pipe 53 at a speed v4 passes through the through hole 542. A pipe resistance proportional to the size is given. For example, the pipe resistance when drinking water W passes through the through hole 542 is approximately 1000 times the pipe resistance when air A passes through the through hole 542. In the case of a mixture of drinking water W and air A, an intermediate pipe resistance is given by their ratio. Thereby, the air A and the mixture easily pass through the through hole 542, but the drinking water W hardly passes through the through hole 542.

  FIG. 11 is an explanatory diagram showing an operation procedure of the air vent structure of the cold water tank 5 according to the third embodiment. This will be described below. In addition, before entering step S1, the bottle holder 2 of the water server 1 is opened, and the bag body 4 is supported in a substantially standing posture on the support portion 7 in a state like the bottle holder 2 ′. Assume that the bag body 4 is set at a predetermined position.

  In FIG. 11, in step S <b> 1, supply of drinking water W from the bag body 4 into the cold water tank 5 is started. First, the needle 8 as a rod-shaped member is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 is removed from the needle 8. It is discharged into the hose 9. The drinking water W discharged to the hose 9 is further supplied to the cold water tank 5 through the line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  In step S2, the drinking water W is taken out in a state where the liquid level in the cold water tank 5 is low. That is, initially, the drinking water W does not enter the cold water tank 5, but when the drinking water W enters the cold water tank 5 from the bag 4 as described above, the liquid level gradually increases. At this time, unlike the conventional example, even if the liquid level is low, a certain head difference H is obtained, so that the drinking water W easily moves in the drainage pipe 51, and the drainage pipe 51. Due to the flow of the drinking water W, the air A intervening in the upper part of the cold water tank 5 is likely to be drawn by the venturi pipe 52 at the connection portion of the drainage pipe 51 through the exhaust pipe 53 and the orifice 54. Yes. As a result, the air A accumulated in the cold water tank 5 is quickly exhausted to the outside.

  In step S3, drinking water is taken out in a state where the liquid level in the cold water tank 5 is high. That is, it is assumed that the liquid level in the cold water tank 5 has increased to some extent. Then, the drinking water W moves in the drainage pipe 51, and the air A intervening in the upper part of the cold water tank 5 flows through the exhaust pipe 53 and the orifice 54 by the flow of the drinking water W in the drainage pipe 51. The phenomenon of being pulled to the tube 52 occurs.

  Eventually, when the air A in the cold water tank 5 decreases, a phenomenon in which a small amount of drinking water W is drawn to the venturi 52 by being mixed with the air A from the exhaust pipe 53 will occur. At this time, the mixture of the air A and the drinking water W passes through the orifice 54, but its specific weight is close to that of the air A, so the resistance loss of the orifice 54 is almost the same as that for the air A. You may think. Therefore, a phenomenon in which the mixture of the air A and the drinking water W interposed in the upper part of the cold water tank 5 is easily drawn by the venturi pipe 52 at the connection portion of the drainage pipe 51 through the exhaust pipe 53 and the orifice 54. ing. As a result, the air A accumulated in the cold water tank 5 is quickly exhausted to the outside together with the drinking water W.

  In step S4, the drinking water W is taken out when the inside of the cold water tank 5 is almost full. That is, it is assumed that the liquid level in the cold water tank 5 has further increased and has risen to the vicinity of the upper part. Then, the drinking water W moves in the drainage pipe 51, and the flow of the drinking water W in the drainage pipe 51 almost eliminates the air A interposed in the upper part of the cold water tank 5. A phenomenon of being pulled to the venturi pipe 52 through the exhaust pipe 53 and the orifice 54 occurs.

  At this time, only the drinking water W passes through the orifice 54, but its specific weight is 1000 times the specific weight of air, so the resistance loss of the orifice 54 is also 1000 times the resistance loss of the air A. Can be easily understood. Therefore, it is difficult for the drinking water W interposed in the upper part of the cold water tank 5 to be drawn by the venturi pipe 52 through the exhaust pipe 53 and the orifice 54. As a result, the drinking water W from near the upper part in the cold water tank 5 is not easily drained to the outside.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a not-shown cup or the like by opening and closing the respective water supply ports 11 and 12. Can be removed.

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again. Thus, the needle 8 is pulled out of the bag body 4 in the state of the bottle holder 2 ′. And after setting another bag body 4 in a predetermined position, water supply can be performed now by repeating said each step S1-S4 again in order.

  As described above, according to the third embodiment, the drainage pipe 51 that discharges the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 and the air A in the cold water tank 5. Is provided with an exhaust pipe 53 that discharges from the vicinity of the top of the cold water tank 5, and a connecting portion that connects the exhaust pipe 53 to a lower position than the bottom of the cold water tank 5 is provided to the drain pipe 51. Even when the liquid level in the cold water tank 5 is low, a certain head difference H can be obtained.

  Accordingly, the drinking water W moves in the drainage pipe 51, and the air A interposed in the upper part of the cold water tank 5 is exhausted through the exhaust pipe 53 and the orifice 54 by the flow of the drinking water W in the drainage pipe 51. As a result of the phenomenon of being drawn to the venturi pipe 52 at the connection portion of the liquid pipe 51, the air A accumulated in the cold water tank 5 is easily exhausted to the outside. Thereby, when it is necessary to discharge the air most when the water server 1 starts to be used, the time until the inside of the cold water tank 5 becomes an airless state can be significantly shortened.

  Further, when the liquid level in the cold water tank 5 becomes high to some extent, the drinking water W moves in the drainage pipe 51, and the air interposed in the upper part of the cold water tank 5 by the flow of the drinking water W in the drainage pipe 51. Although the phenomenon that A is drawn to the venturi pipe 52 through the exhaust pipe 53 and the orifice 54 occurs, the phenomenon that the drinking water W is also drawn to the venturi pipe 52 through the exhaust pipe 53 and the orifice 54 eventually occurs. Even in this case, unlike the conventional example, since the exhaust pipe 53 does not pass through the cold water tank 5, the relatively cold drinking water W near the bottom of the cold water tank 5 is used as the relatively warm air A or beverage above it. The water W is not warmed while being sucked by the exhaust pipe 53.

  Then, when the liquid level in the cold water tank 5 further increases and rises to the vicinity of the upper part, the drinking water W moves in the drainage pipe 51, and the flow of the drinking water W in the drainage pipe 51 The air A intervening in the upper part of the cold water tank 5 disappears, and instead, the phenomenon that the drinking water W is drawn to the venturi pipe 52 through the exhaust pipe 53 and the orifice 54 occurs.

  At this time, only the drinking water W tries to pass through the exhaust pipe 53, but due to the presence of the orifice 54, the drinking water W interposed in the upper part of the cold water tank 5 passes through the exhaust pipe 53 and the orifice 54. The phenomenon of being pulled by the pipe 52 is less likely to occur. As a result, the drinking water W from near the upper part in the cold water tank 5 is not easily drained to the outside.

  As a result, the cooling efficiency in the cold water tank 5 is hardly reduced, and the energy saving requirement is met.

  In the third embodiment, the head difference H between the liquid level and the Venturi pipe 52 does not rise forever due to the size of the pipe line resistance or restrictions on the arrangement. May not be able to be taken. Therefore, as in the modification shown in FIG. 12, the drainage pipe 51 is temporarily raised between the drainage part 56 for drinking water W and the venturi pipe 52 near the bottom of the cold water tank 5. Lower from. Thereby, the temporary storage part 55 of the liquid for drinks is formed in the drainage pipe 51, for example in reverse U shape. Reference numeral H <b> 1 is the height of the reservoir portion 55, but it is preferable that the top portion is set below the ceiling of the cold water tank 5 and above the bottom portion, and the Venturi tube 52 is set slightly below the tank bottom portion.

  According to this modification, the drinking water W is supplied from the bag body 4 to the cold water tank 5 via the needle 8 or the like. The drinking water W that has entered the cold water tank 5 is discharged from the discharge portion 56 of the drain pipe 51 near the bottom of the tank 5. The drinking water W discharged from the discharge portion 56 passes through the pool portion 55 and is discharged from the drainage pipe 51 through the venturi pipe 52.

  Therefore, if the height H1 of the reservoir 55 is set below the ceiling in the cold water tank 5 and above the bottom, the liquid level in the cold water tank 5 rises even if the water supply port 11 is opened. The drinking water W is not discharged until H≈H1. Even at this time, since the water is supplied from the bag body 4 through the needle 8 or the like, the air A in the cold water tank 5 is compressed. Therefore, only air A is exhausted through the exhaust pipe 53.

  Eventually, when the liquid level in the cold water tank 5 rises to H≈H1, the drinking water W that has entered the cold water tank 5 is discharged from the drain pipe 51 through the venturi pipe 52. At this time, the air A in the cold water tank 5 is discharged by being sucked from the exhaust pipe 53 to the venturi pipe 52 through the orifice 54.

  And the drinking water W will accumulate in the cold water tank 5 until it exceeds the accumulation part 55, but even when extracting the accumulated drinking water W from the tank 5, since the accumulation part 55 works as a siphon, As a result, there is no need to provide a separate drain valve.

  Thus, in the modified example, the drainage pipe 51 is once raised between the drainage part 56 of the drinking water W and the venturi pipe 52 in the vicinity of the bottom of the cold water tank 5, and then lowered, so that the drainage pipe 51 Since the temporary reservoir 55 for the beverage liquid is formed, a liquid level in the cold water tank 5 is secured, and a certain head difference H can be obtained between the liquid level and the venturi tube 52.

  Moreover, although the said Embodiment 3 demonstrated the water server 1 provided with both the cold water tank 5 and the hot water tank 6 which are supplied from the bag body 4, only the cold water tank 5 or the hot water tank 6 is provided. The same applies to other water servers. However, it can be said that application to a water server equipped with the cold water tank 5 is preferable in terms of meeting the demands for cooling efficiency and energy saving.

  In the third embodiment, the venturi pipe 52 is provided at the connection portion between the drain pipe 51 and the exhaust pipe 53. However, when the head difference H is large, the venturi pipe 52 is omitted. You can also. As a result, the structure becomes relatively simple, and further cost reduction can be achieved.

  In the third embodiment, the orifice 54 is exemplified as the throttle means. However, a valve having other throttle functions such as a miniature valve may be used. In that case, the connecting portion may be provided on the downstream side of the water supply port 11.

  In the first to third embodiments, water is separately supplied from the bag body 4 to the cold water tank 5 and the hot water tank 6, but a communication pipe is provided between the cold water tank 5 and the hot water tank 6 to A configuration may be adopted in which water is supplied from the body 4 to the cold water tank 5, water is supplied from the cold water tank 5 to the hot water tank 6 through the communication pipe, and air is extracted from the hot water tank 6. In that case, it is preferable that the upper end of the communication pipe is placed in a convex portion provided on the top plate of the cold water tank 5 and the exhaust pipe 53 is connected to the convex portion.

  In the first to third embodiments, the needle 8 is pierced into the bag body 4, but at least the vicinity of the tip of a rod-shaped member having an opening formed near the tip and a passage communicating with the opening, a ring, a cap, etc. You may make it insert in a 1st container via. In that case, the insertion position and angle of the rod-shaped member with respect to the first container are preferably the same as those of the needle 8.

  Moreover, although the drinking water W is illustrated as a liquid in the said Embodiments 1-3, all liquids, such as juice and liquor, may be sufficient as other liquids.

(Embodiment of the third invention)
Hereinafter, FIGS. 1 to 8 in the embodiment of the third invention are read as FIGS. 42 to 49 in the brief description of the above drawings. FIG. 1 is a side view schematically showing the overall configuration of a water server 1 according to an embodiment of the third invention. In the figure, the left side shows the front and the right side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 has a main body for setting a bag body (corresponding to a first container) 4 containing drinking water W as a liquid for drinking, or for taking out the set bag body 4 to the outside. 3 is attached in a freely openable / closable manner (reference numeral 2 in FIG. 1 indicates a closed state and reference numeral 2 ′ indicates an open state). Further, inside the main body 3, cold water for cooling the drinking water W is provided. A tank (corresponding to the second container) 5 and a hot water tank (corresponding to the second container) 6 for warming the drinking water W are arranged vertically.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, for example, and can be reduced and deformed as the drinking water W filled therein decreases. And in the initial state with which the drinking water W was filled, it is round as a whole and has a slightly flat hexahedral shape. Here, the bag body 4 is supported by the support portion 7 in a substantially standing posture. The shape of the bag body 4 in the initial state may be another shape such as a square or a cylindrical shape.

  A small hole is formed in the approximate center near the bottom surface on the front side of the bag body 4, and a synthetic resin outlet 41 that is also a spout for drinking water W is formed there. Sealed with a resin cap 42. 5A and 5B are explanatory views showing a state in which the cap 42 is attached to the take-out port 41 of the bag body 4, wherein FIG. 5A is a front view and FIG. 5B is a BB cross-sectional view in FIG.

  As shown in FIGS. 5A and 5B, the outlet 41 has a first projection 412, a second projection 413, a third projection 414, and a first projection at predetermined intervals in the axial direction on the outer wall of the cylindrical main body 411. Four protrusions 415 are each formed in an annular shape. The first protrusion 412 is a welding flange for welding the main body 411 to the bag body 4, and the fourth protrusion 415 is a mounting flange for attaching the cap 42 to the main body 411. The second protrusion 413 and the third protrusion 414 are originally reinforcing flanges, but here, the needle 8 is attached using the second protrusion 413 and the third protrusion 414.

  On the front side of the disc-shaped main body 421, the cap 42 is formed with a first concave portion 422 and a second concave portion 423 concentrically with a predetermined interval in the radial direction. The first concave portion 422 is located at a portion where the needle 8 is pierced, and an inner side 425 of the first concave portion 422 is provided with a thin-walled portion 424 extending radially from the center in three peripheral directions. The second recess 423 includes a reinforcing rib 426 of the first recess 422 and an engaging portion 427 whose outer peripheral wall is folded back so as to correspond to the fourth protrusion 415 of the outlet 41.

  The support portion 7 is provided with a relatively large radius from the back to the front so as not to obstruct the reduction deformation of the bag body 4 as much as possible, and is provided with a relatively small radius at the front. And between taking off of the drinking water W with which the inside of the bag body 4 was filled between both rounds, the bag body 4 can be set so that it may shrink-deform without producing an excessive twist. Although not shown in the figure, appropriate rounds are provided on both the left and right sides of the support portion 7 to achieve the same effect. Further, a clip 71 capable of detachably hanging near the upper portion of the bag body 4 is provided above the back surface of the support portion 7. Further, a sensor 72 that detects the presence or absence of leaked water is provided on the bottom surface of the support portion 7. When leaking water is detected, the alarm is flashed by a signal from the sensor 72 to alert the user.

  The bag body 4 supported by the support portion 7 can have a hole in the cap 42 by piercing the needle 8 sideways. The needle 8 is attached to the support portion 7 on the front side and pierces the cap 42 of the bag body 4.

  And the drinking water taken out from the bag body 4 through the flexible hose 9 made of, for example, silicon rubber connected to the base portion of the needle 8 and the line 10 further connected to the hose 9 is supplied to the cold water tank 5. To be supplied. A part of the drinking water supplied to the cold water tank 5 is also supplied to the hot water tank 6 via the communication pipe 102.

  That is, as shown in FIG. 1, a convex portion 101 is provided near the center of the top of the cold water tank 5, and a communication pipe 102 that communicates the inside of the convex portion 101 and the vicinity of the bottom of the hot water tank 6 substantially linearly is provided. ing. Specifically, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5 and the upper end of the communication pipe 102 is inserted into the convex portion 101 to open, thereby forming a so-called double tubular structure. . And the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102 by connecting the water supply line 10 to a part separated from the convex portion 101. The air A in the tank 5 is easy to flow out into the hot water tank 6.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water W, and the drinking water W supplied from the bag body 4 is cooled by the cooling means 50 so that the cold water The tank 5 is maintained at a temperature of about 4 to 10 ° C.

  The hot water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water W, and the drinking water W supplied from the bag body 4 is heated by the heating means 60. Therefore, the temperature is maintained at about 80 to 90 ° C. in the hot water tank 6.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a not-shown cup or the like by a predetermined amount by opening and closing the water supply ports 11 and 12. It is supposed to be.

  2-4 is explanatory drawing which shows the structure of the needle 8 which concerns on this Embodiment 1, and its operation | movement 1-3, (a) is a top view, (b) is the AA cross section in (a), respectively. FIG. In each figure, the left side indicates the front, and the right side indicates the rear. 2 to 4, the needle 8 is a needle body (corresponding to a rod-shaped member) 81, a needle guide 82, and a needle cover (corresponding to a storage portion) 83. And.

  The needle body 81 includes a spire-shaped distal end portion 811, a substantially columnar intermediate portion 812 fixed to the distal end portion 811, and a base portion 813 further fixed to the intermediate portion 812. The needle body 81 is made of synthetic resin that has good adhesion to the outlet 41 and the cap 42 of the bag body 4, so that the drinking water W from the hole opened in the cap 42 of the bag body 4 can be used. Leakage can be minimized. In addition, it is good also as using the thing made from stainless steel from a durable point.

  An opening 814 is formed on the side surface of the distal end portion 811. Although the specific shape, position, and number of the openings 814 are arbitrary, it is preferable to provide a plurality of substantially triangular or trapezoidal shapes at the tip as much as possible. The opening 814 communicates with a valve 816 serving as an opening / closing means formed in the base portion 813 through a passage 815 formed around the axis (horizontal axis) between the distal end portion 811 and the intermediate portion 812.

  The valve 816 is made of, for example, silicon packing, and is formed so as to be bent downward by closing or opening the flow path by reciprocating in the horizontal axis direction. A connecting portion 817 of the hose 9 is provided at the lower end of the road. In order to reciprocate the valve 816, a second lever 834 described later is attached to the rear of the valve 816 via a moving shaft 818 and a spring 819.

  The needle guide 82 is provided in front of the support portion 7 so as to run in the front-rear direction in a deformed case 821 attached so that the central portion protrudes in plan view, and in the vicinity of the center of the housing 821 in the left-right direction. And a wide notch 822 formed. Note that the protruding shape of the casing 821 is intended to make it easier for the bag body 4 supported in a standing position on the support portion 7 to be in close contact, thereby making it easier to pierce the needle 8 into the cap 42. .

  The notch 822 is formed so that the needle cover 83 can be slidably inserted in the front-rear direction together with the needle body 81, and the housing 821 is connected by the front diameter-reduced portion 824 and the diameter-expanded portion 823. By fitting the lower half of the outlet 41 of the bag body 4 with the enlarged diameter portion 823 and engaging the second projection 413 and the third projection 414 of the outlet 41 with the reduced diameter portion 824, the cap 42 can be positioned. In addition, a guide portion 825 for sliding the needle cover 83 in the front-rear direction is provided from the left and right middle to the rear end of the notch portion 822. The front half of the guide portion 825 includes a front portion of a needle cover 83 described later. A so-called ratchet blade 826 that restricts rearward movement but not rearward movement is formed.

  The needle cover 83 includes a dome-shaped main body 831 that is slidable in the front-rear direction along the guide portion 825 of the needle guide 82, and hooks (corresponding to attachment means) that are provided on both the left and right sides of the main body 831 and that are extendable in the front-rear direction. .) 832, a first lever (corresponding to a hook restricting portion) 833 that restricts the expansion / contraction operation of the hook 832, and a second lever that is provided at the rear end of the main body 831 to open and close the valve 816 of the needle main body 81 A lever (corresponding to an operation lever) 834 and an auxiliary member 835 protruding to the left and right of the second lever 834 are provided.

  When the user presses the first lever 833 toward the auxiliary member 835, the tip of the first lever 833 is disengaged from the ratchet blade 826, and the hooks 832 can be extended from the left and right sides of the main body 831. It is like that. In addition, the auxiliary member 835 is pressed forward in a state where the extended hook 832 is hooked between the second protrusion 413 and the third protrusion 414 of the outlet 41 around the cap 42 of the bag body 4. Thus, by reducing the hook 832 and fitting the main body 831 around the outlet 41 of the bag body 4, at least the vicinity of the distal end portion 811 of the needle main body 81 can be inserted into the cap 42.

  When the second lever 834 is erected, the valve 816 of the needle body 81 is urged by the spring 819 to be on the front side, and the passage 815 is closed. When the second lever 834 is tilted rearward, the valve 816 of the needle body 81 is pulled by the moving shaft 818 so that the passage 815 is opened. By engaging the tip end of the tilted second lever 834 with the shallow groove 827 of the main body 3 at the rear end of the housing 821 of the needle guide 82, the lever restricting portion restricts the operation of the second lever 834. It is supposed to fulfill its function.

  The operation will be described below. Now, when the bottle holder 2 of the water server 1 is opened and the bottle holder 2 ′ is opened, the bag body 4 is supported in a substantially standing posture using the clip 71 on the support portion 7. 4 is set at a predetermined position, and the presence or absence of leaked water can be detected by the sensor 72.

  Next, the needle cover 83 of the needle 8 is set together with the needle body 81 on the needle guide 82 attached to the support portion 7. At this time, as shown in FIGS. 2A and 2B, the reduced diameter portion 824 of the needle guide 82 is interposed between the lower portion of the second protrusion 413 and the lower portion of the third protrusion 414 at the outlet 41 of the bag body 4. The upper part is fitted, and the lower part of the cap 42 is fitted to the upper part of the enlarged diameter part 823. Further, the hook 832 of the needle cover 83 is fitted between the left and right side portions of the second protrusion 413 and the left and right side portions of the third protrusion 414. And the front-end | tip part 811 of the needle main body 81 and the cap 42 of the bag body 4 of the state supported by the support part 7 are not contacting at all. At this time, since the second lever 834 is in an upright state, the valve 816 of the needle body 81 blocks the passage 815.

  Next, the user manually operates to push the auxiliary member 835 forward and push the needle cover 83 forward. At this time, if the needle cover 83 is not securely fitted to the take-out port 41, the needle cover 83 contacts the take-out port 41 and the needle cover 83 cannot advance. Here, assuming that the needle cover 83 is firmly fitted to the outlet 41, the needle cover 83 slides on the guide portion 825 of the needle guide 82 together with the needle body 81, moves forward, and moves to the needle body. The front end portion 811 of 81 and the cap 42 of the bag body 4 come into contact with each other.

  Next, as shown in FIGS. 3A and 3B, when the distal end portion 811 of the needle body 81 breaks through the cap 42 of the bag body 4 along its thin portion 424 and reaches the inside thereof, In the needle body 81, the protrusion on the front upper side of the hose connection portion 817 comes into contact with the rear end of the diameter-enlarged portion 823 of the needle guide 82, and does not advance any further. Then, the tension acting in the direction in which the bag body 4 shrinks and the gravity of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 becomes the needle body 81. It flows out from the opening 814 of the front-end | tip part 811. This outflowing drinking water W does not flow out to the hose connection portion 817 because the passage 815 is blocked by the valve 816.

  Therefore, as shown in FIGS. 4A and 4B, the user tilts the second lever 834 rearward and engages the tip of the second lever 834 with the shallow groove 827 of the main body 3 at the rear end of the needle guide 82. . At this time, the valve 816 is pulled by the moving shaft 818 and opened. Then, the drinking water W that has flowed out from the opening 814 of the distal end portion 811 of the needle body 81 flows into the hose connection portion 817 without the passage 815 being blocked by the valve 816. Then, it is discharged into the hose 9. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state.

  The drinking water W discharged to the hose 9 is further supplied to the cold water tank 5 through the line 10. At first, since the air A is contained in the cold water tank 5 and the hot water tank 6, the air A from both the tanks 5 and 6 is extracted.

  FIG. 6 is an explanatory view showing an air bleeding structure between the cold water tank 5 and the hot water tank 6 according to this embodiment. Specifically, as shown in FIG. 6, the water supply port 11 is closed and the water supply port 12 is opened. As a result, when the drinking water W from the bag body 4 is supplied to the cold water tank 5, the air A in the hot water tank 6 is compressed, and the compressed air A enters the hot water tank 6 through the communication pipe 102. The air A discharged and discharged into the hot water tank 6 is discharged from the hot water tank 6 to the outside through the discharge pipe 63 and the water supply port 12. As a result, the cold water tank 5 is filled with the drinking water W, and the drinking water W filled in the cold water tank 5 is discharged into the hot water tank 6 through the communication pipe 102, whereby the hot water tank 6 is filled. The drinking water W is filled and a so-called airless state is established. After that, the water inlet 12 is closed.

  Then, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a glass (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. It is.

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again. Then, the needle 8 is pulled back to the original state in the state of the bottle holder 2 ′. That is, the user erects the second lever 834 in the reverse procedure to the above. Then, the passage 815 of the needle body 81 is blocked again by the valve 816.

  Next, the needle cover 83 is pulled out from the cap 42 of the bag body 4 together with the needle body 81. That is, the user presses the first lever 833 toward the auxiliary member 835 while keeping the second lever 834 upright, whereby the tip of the first lever 833 is disengaged from the ratchet blade 826 and the main body 831 The hooks 832 are extended from the left and right sides. When the first lever 833 is pulled rearward while being pressed toward the auxiliary member 835 side, the needle cover 83 moves rearward together with the needle main body 81, so that the distal end portion 811 of the needle main body 81 is pulled from the cap 42 of the bag body 4. Get wet. When the clip 71 is removed above the support portion 7 and the bag body 4 is pulled upward, the extended hook 832 causes the left and right side portions of the second protrusion 413 and the third protrusion 414 at the outlet 41 of the bag body 4. The gap between the lower left portion and the lower portion of the second protrusion 413 and the lower portion of the third protrusion 414 is disengaged from the upper portion of the reduced diameter portion 824 of the needle guide 82, and the lower portion of the cap 42 is the upper portion of the enlarged diameter portion 823. Therefore, the bag body 4 can be easily removed. And after operating the clip 71 and removing the bag body 4 and setting another bag body 4 there at a predetermined position, water is supplied while the airless state is maintained by repeating the above operation again in order. be able to. At this time, if there is leaked water, the sensor 72 detects it, and the alarm lamp blinks in response to a signal from the sensor 72, so that the user can immediately know that there was leaked water and can respond immediately.

  As described above, according to the water server 1 of the first embodiment, when the bag body 4 with the cap 42 is set in a predetermined position, at least the vicinity of the tip 811 of the needle body 81 is inserted into the cap 42. In addition, by opening the passage 815, the drinking water W can be supplied to the cold water tank 5 through the passage 815, while at least the vicinity of the tip 811 of the needle body 81 from the cap 42 when the passage 815 is closed. Since the drinking water W in the bag body 4 is used up and replaced with another bag body 4, the passage 815 is always closed, and the air A is in the cold water tank 5. There is no inflow. Accordingly, when the bag body 4 with the cap 42 is replaced, the inside of the cold water tank 5 is filled, and after the replacement of the bag body 4, it can be used as it is without taking time for air bleed operation or the like. Convenient. In addition, it is possible to reliably prevent a situation where the airless state cannot be maintained due to an erroneous operation. In this case, no complicated electrical elements are required, and this is in line with the current demand for energy saving, and cost reduction can be realized.

  In the above embodiment, the needle body 81 is housed in the needle cover 83 guided by the needle guide 82. However, the needle body 81 may be guided directly by the needle guide 82. In that case, the configuration is simpler. Further, in order to release the movement restriction of the hook 832 of the needle cover 83, the first lever 833 is pressed against the auxiliary member 835. However, instead of this, a push button may be pressed.

  Moreover, in the said embodiment, although the thin part 424 of the cap 42 shall be each extended radially from a center toward three circumference | surroundings, what is necessary is just one or several directions. However, in the case of a plurality of directions, it is preferable that the needle body 81 is equiangular so that an excessive torsional moment does not act on the needle body 81 when the needle body 81 is pierced into the thin portion 424.

  Moreover, in the said embodiment, although the channel | path 815 is open | released or interrupted | blocked by opening and closing of the valve | bulb 816 incorporated in the base part 813 of the needle body 81, in any site | part of the communicating path after the connection part 817 of the hose 9, A cock, a valve, or the like may be provided.

  In the above embodiments, manual operation of the needle 8 is exemplified, but the needle 8 may be automatically advanced and retracted by a spring, a motor or other actuator. However, when a motor or the like is used, it goes against the demand for energy saving and an electric circuit is required, resulting in an increase in cost. In addition, when a motor or the like is used, the configuration becomes large, and there is a problem of arrangement space and maintenance.

  In the above embodiment, the needle 8 is pierced sideways near the bottom surface of the bag body 4, so-called horizontal stab. It may be stabbed. Moreover, it may replace with the needle 8 and the rod-shaped member which does not have a spire part may be sufficient. Furthermore, the advance / retreat operation of the needle 8 may be a straight shape or a spiral shape. The spiral advance / retreat operation can be realized by providing a spiral groove in at least one of the needle body 81 or the needle guide 82. Furthermore, a partial spiral structure or a stepped structure may be adopted at the tip of the needle 8 so that the needle 8 can be pierced more reliably into the bag body 4.

  In the above embodiment, the communication pipe 102 is provided between the cold water tank 5 and the hot water tank 6 to supply water from the bag 4 to the cold water tank 5, and from the cold water tank 5 to the hot water tank 6 through the communication pipe 102. The air A is extracted from the hot water tank 6, but water may be separately supplied from the bag body 4 to the cold water tank 5 and the hot water tank 6 as in the modification shown in FIG. 7. In that case, the air A may be extracted from the upper part of the cold water tank 5 to the drainage line 51 through the orifice 54 and the venturi pipe 52. In either case, an airless mechanism such as a cold water tank can be configured.

  Moreover, although the drinking water W is illustrated as a liquid in the said embodiment, all liquids, such as juice and liquor, may be sufficient as other liquids.

(Embodiment 1 of the fourth invention)
Hereinafter, FIGS. 1 to 13 in the embodiment of the fourth invention are read as FIGS. 50 to 62 in the brief description of the drawings. FIG. 1 is a side sectional view schematically showing the overall configuration of a water server 1 to which a spherical container 4A according to Embodiment 1 of the fourth invention can be attached, and FIG. 2 is a front view of the spherical container 4A (when attached to a water server) 3 (a) and 3 (b) are principle diagrams showing the airless supply of the drinking water W filled in the spherical container 4A, and FIG. 4 can be equipped with the spherical container 4A according to the first embodiment of the present invention. 1 is a principle diagram showing an airless structure of a water server 1. FIG. In FIG. 1, the left side shows the front and the right side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 is opened and closed on the main body 3 in order to set a spherical container (corresponding to a container) 4A containing drinking water W as a liquid or to take out the set spherical container 4A to the outside. They are attached freely (reference numeral 2 in FIG. 1 indicates a closed state and reference numeral 2 ′ indicates an open state). A cold water tank 5 that cools the drinking water W and a hot water tank 6 that warms the drinking water W are arranged vertically inside the main body 3.

  The spherical container 4A is made of a relatively thin material having a predetermined strength such as made of PET (polyethylene terephthalate) resin and having a high degree of flexibility, and can be reduced and deformed as the drinking water W filled therein decreases. is there. And in the initial state in which the drinking water W was filled, it is substantially spherical. In order to support the spherical container 4A with the support part 7, the support part 7 is formed with a through hole 71 whose upper part is expanded so as to correspond to the curved surface of the main body lower part 42 of the spherical container 4A.

  For example, as shown in FIG. 2, the spherical container 4 </ b> A is mounted in the bottle holder 2 of the water server 1. A lower part (corresponding to a lower part) 42 and a cap 43 are provided.

  Since the top portion 411 is flat and the body upper portion 41 is turned upside down during the transportation with the drinking water W, the top portion 411 can stand on its own. In addition, a bellows 412 that can be expanded and contracted in the vertical direction is formed on a side surface of the main body upper portion 41. As shown in FIG. 3A, the bellows 412 has a center line 413 that is not parallel and extends in the radial direction of the main body upper portion 41 at equal angular intervals. As shown, the water pressure (negative pressure) P accompanying the decrease in the drinking water W is very easy to bend in the direction of the arrow R. Then, when the main body upper portion 41 is folded back, the bellows 412 extends, and the height of the bellows 412 (which is a dimension perpendicular to the expansion and contraction direction; the same applies hereinafter) decreases. become. In this way, the folded shape shrinks while closely contacting the inside of the main body lower part 42, so the drinking water W filled in the spherical container 4 </ b> A does not require any conventional initial air A at all, so-called Airless supply is possible. The inventor confirmed this by experiment.

  An outlet 422 for drinking water W is formed at the bottom of the side surface 421 of the main body lower part 42, and the outlet 422 is reinforced by a laterally oriented rib 423. However, the rib 423 can be omitted depending on the strength of the outlet 422.

  The cap 43 is attached to the tip of the outlet 422, and is closed during the conveyance with the drinking water W. Thereby, the possibility that the drinking water W leaks from the outlet 422 is reduced. The cap 43 is preferably one that automatically opens and closes when the cap 43 is engaged with and disengaged in the through hole 71 with the connector 9 installed in the main body 3 of the water server 1.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water W, and the drinking water W supplied from the spherical container 4A is cooled by the cooling means 50, whereby cold water The tank 5 is maintained at a temperature of about 4 to 10 ° C.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water W, and the drinking water W supplied from the spherical container 4A is heated by the heating means 60. Therefore, the temperature is maintained at about 80 to 90 ° C. in the hot water tank 6.

  The spherical container 4A supported by the support part 7 engages the cap 43 of the outlet 422 with the connector 9, and the drinking water taken out from the spherical container 4A through the water supply line 10 further connected to the connector 9. W is supplied to the cold water tank 5. A part of the drinking water W supplied to the cold water tank 5 is also supplied to the hot water tank 6 through the communication pipe 102, and has an airless structure.

  That is, as shown in FIG. 4, a convex portion 101 is provided near the top of the cold water tank 5, and a communication pipe 102 that communicates the inside of the convex portion 101 with the inside of the hot water tank 6 is provided. Specifically, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5 and the upper end of the communication pipe 102 is inserted into the convex portion 101 to open, thereby forming a so-called double tubular structure. . And the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102 by connecting the water supply line 10 to a part separated from the convex portion 101. The air A in the tank 5 is easy to flow out into the hot water tank 6.

  Further, a drain pipe 51 is provided for discharging the drinking water in the cold water tank 5 from the bottom of the cold water tank 5 in a descending manner, and discharging the drinking water W in the hot water tank 6 from the vicinity of the top of the hot water tank. A tube 63 is provided.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a not-shown cup or the like by a predetermined amount by opening and closing the water supply ports 11 and 12. It is supposed to be.

  FIG. 5 is an explanatory view showing a usage state of the spherical container 4A according to the first embodiment, and FIG. 6 is a perspective view thereof. Hereinafter, the operation procedure (steps S1 to S3) of the air bleeding structure of the cold water tank 5 and the hot water tank 6 supplied with water from the spherical container 4A according to the first embodiment will be described.

  Before entering Step S1, the bottle holder 2 of the water server 1 is opened and the bottle holder 2 'is supported, and the spherical container 4A is supported on the support portion 7 in the upside down direction during the conveyance. By doing so, it is assumed that the spherical container 4 </ b> A is set on the support portion 7. The spherical container 4A at this time is substantially spherical as shown in FIGS. 5 (a) and 6 (a), and the bellows 412 of the main body upper portion 41 is stretched by receiving the water pressure of the filled drinking water W. It is in a state of completeness.

  In step S1, supply of the drinking water W from the spherical container 4A into the cold water tank 5 is started. First, the spherical container 4 </ b> A supported by the support portion 7 engages the connector 9 in the through hole 71 of the support portion 7 with the cap 43 of the outlet 422 of the lower portion 42 of the main body.

  Then, the tension in the direction in which the bellows 412 of the main body upper portion 41 of the spherical container 4A is contracted and the weight of the drinking water W itself filled in the spherical container 4A simultaneously act, whereby the beverage in the spherical container 4A Water W is supplied to the cold water tank 5 through the cap 43, the connector 9 and the water supply line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  By the way, in the initial state, the water supply port 11 of the cold water tank 5 and the water supply port 12 of the hot water tank 6 are both closed. Then, even if it is going to supply drinking water W from the spherical container 4A into the cold water tank 5 and the hot water tank 6, since both the cold water tank 5 and the hot water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water W. Therefore, in step S2, when only the water supply port 12 of the hot water tank 6 is opened, the air A in the cold water tank 5 is collected in the convex portion 101, and then flows out into the hot water tank 6 through the communication pipe 102. The The air A flowing out into the hot water tank 6 is discharged to the outside from the water supply port 12 through the discharge pipe 63. For this reason, the drinking water W comes to be supplied from the water supply line 10 into the cold water tank 5.

  Then, the spherical container 4A starts to shrink and deform, but here, as shown in FIGS. 5 (b) and 6 (b), the bellows 412 of the upper part 41 of the main body is folded inward, as if The top portion 411 is depressed.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the water supply port 12, so that the water supply port 12 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  In this way, when the drinking water W is supplied into the cold water tank 5, the initial air A in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 can be quickly brought into an airless state. After that, the water inlet 12 is closed.

  After that, in step S3, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are placed in a cup or the like (not shown) by opening and closing the water supply ports 11 and 12, respectively. Only a fixed amount is poured.

  When the drinking water W in the spherical container 4A is used up, as shown in FIGS. 5C and 6C, the bellows 412 of the upper body 41 of the spherical container 4A is fully extended. Since it adheres to the inside of the main body lower part 42, there is almost no residual liquid at this time. It is necessary to replace it with another spherical container 4A filled with drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again, and the spherical container is in the state of the bottle holder 2 ′. The engagement between the cap 43 of the 4A outlet 422 and the connector 9 is released. And after setting another spherical container 4A in a predetermined position, water supply can be performed now by repeating said each step S1-S3 again in order.

  As described above, according to the first embodiment, the bellows 412 is provided so as to allow the main body upper portion 41 of the spherical container 4A to be bent while being mounted in the bottle holder 2 of the water server 1. The bending of the lower part 42 is regulated, and the bellows 412 of the upper part 41 of the main body 41 is bent along the inner side of the lower part 42 of the main body 41 as the drinking water W filled in the spherical container 4A decreases. Therefore, as the amount of the drinking water W in the spherical container 4A decreases, the bellows 412 becomes extended and its height decreases. Therefore, contrary to the above-mentioned Patent Document 6, almost no gap remains between the lower body 42 of the spherical container 4A and the bellows 412 of the upper body 41, and a true airless structure can be realized. It will be a thing. In addition, unlike the above-mentioned Patent Document 6, it is not necessary to put the initial air A and there is little residual liquid. Therefore, the filling amount of the drinking water W with respect to the volume of the spherical container 4A is increased, and the transportation cost of the spherical container 4A is increased. Can be reduced.

(Embodiment 2 of the fourth invention)
FIG. 7 is a side sectional view schematically showing the entire configuration of the water server 1 to which the modified container 4B according to the second embodiment of the fourth invention can be mounted, and FIG. 8 is a front view of the modified container 4B (mounted on the water server). 9 (a) and 9 (b) are principle diagrams showing the airless supply of the drinking water W filled in the deformed container 4B. FIG. 4 is also a principle diagram showing an airless structure of the water server 1 to which the deformed container 4B according to the second embodiment of the present invention can be attached. In FIG. 7, the left side indicates the front and the right side indicates the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place. Here, for convenience of explanation, the same reference numerals are given to elements that are common to or correspond to those of the first embodiment.

  As shown in FIG. 7, the water server 1 includes a bottle holder 2 and a main body 3. The bottle holder 2 is opened and closed on the main body 3 in order to set a deformed container (corresponding to a container) 4B containing drinking water W as a liquid or to take out the set deformed container 4B to the outside. They are attached freely (reference numeral 2 in FIG. 7 indicates a closed state and reference numeral 2 ′ indicates an open state). A cold water tank 5 that cools the drinking water W and a hot water tank 6 that warms the drinking water W are arranged vertically inside the main body 3.

  The deformed container 4B is made of a relatively thin material that is rich in flexibility, such as made of PET (polyethylene terephthalate) resin, and can be deformed by shrinking as the drinking water W filled therein decreases. And in the initial state in which the drinking water W was filled, it has a hexagonal cross section. In order to support the deformed container 4 </ b> B with the support portion 7, the support portion 7 is also formed with a through hole 71 whose upper portion is expanded. This is common to the case of supporting the spherical container 4A.

  For example, as shown in FIG. 8, the deformed container 4 </ b> B also has a main body upper part (corresponding to an upper part) 41 that is an upper half and a lower half when mounted in the bottle holder 2 of the water server 1. A main body lower part (corresponding to a lower part) 42 and a cap 43 are provided.

  Since the top portion 411 is flat and the body upper portion 41 is turned upside down during the transportation with the drinking water W, the top portion 411 can stand on its own. In addition, a bellows 412 that can be expanded and contracted in the vertical direction is formed on a side surface of the main body upper portion 41. Here, according to an experiment by the present inventor, it was found that in the case of the deformed container 4B, the initial folding of the bellows 412 is more difficult than in the case of the spherical container 4A described above.

  Therefore, as shown in FIG. 9A, the inclination angle of the center line 416 of the bellows 412 is made gentler than the inclination angle of the center line 415. As a result, as shown in FIG. 9 (b), the water pressure (negative pressure) P accompanying the decrease in the drinking water W is very easy to bend in the direction of the arrow R. Then, when folded, the bellows 412 extends, and the height of the bellows 412 decreases accordingly. In this way, the folded shape shrinks while closely contacting the inside of the main body lower part 42, so the drinking water W filled in the deformed container 4B does not require any conventional initial air A at all. So-called airless supply becomes possible.

  A side surface 421 of the main body lower portion 42 is reinforced by a substantially vertical rib 425. In addition, an outlet 422 for drinking water W is formed at the bottom 424, and the outlet 422 is reinforced by a lateral rib 423. However, depending on the strength of the side surface 421 and the outlet 422, the ribs 425 and 423 can be omitted.

  The cap 43 is attached to the tip of the outlet 422, and is closed during the conveyance with the drinking water W. Thereby, the possibility that the drinking water W leaks from the outlet 422 is reduced. The cap 43 is preferably one that automatically opens and closes when the cap 43 is engaged with and disengaged in the through hole 71 with the connector 9 installed in the main body 3 of the water server 1.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water W. The drinking water W supplied from the deformed container 4B is cooled by the cooling means 50, thereby The tank 5 is maintained at a temperature of about 4 to 10 ° C.

  The hot water tank 6 is provided with heating means 60 such as a band heater or a sheathed heater for heating the drinking water W, and the drinking water W supplied from the deformed container 4B is heated by the heating means 60. Therefore, the temperature is maintained at about 80 to 90 ° C. in the hot water tank 6.

  The deformed container 4B supported by the support portion 7 engages the cap 43 of the outlet 422 of the bottom portion 424 with the connector 9 in the through hole 71, and through the water supply line 10 further connected to the connector 9, The drinking water W taken out from the deformed container 4B is supplied to the cold water tank 5. A part of the drinking water W supplied to the cold water tank 5 is also supplied to the hot water tank 6 through the communication pipe 102.

  That is, as shown in FIG. 4, the convex portion 101 is provided near the top of the cold water tank 5, and the communication pipe 102 that communicates the inside of the convex portion 101 with the inside of the hot water tank 6 is provided. Specifically, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5 and the upper end of the communication pipe 102 is inserted into the convex portion 101 to open, thereby forming a so-called double tubular structure. . And the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102 by connecting the water supply line 10 to a part separated from the convex portion 101. The air in the tank 5 can easily flow out into the hot water tank 6.

  In addition, a drain pipe 51 is provided for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 downward, and the drinking water W in the hot water tank 6 is discharged from the vicinity of the top of the hot water tank. A discharge pipe 63 is provided.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a not-shown cup or the like by a predetermined amount by opening and closing the water supply ports 11 and 12. It is supposed to be.

  FIG. 10 is an explanatory view showing a usage state of the deformed container 4B according to the first embodiment, and FIG. 11 is a perspective view thereof. Hereinafter, the operation procedure (steps S11 to S13) of the air bleeding structure of the cold water tank 5 and the hot water tank 6 supplied from the modified container 4B according to the second embodiment will be described. Before entering step S11, the bottle holder 2 of the water server 1 is opened and the bottle holder 2 'is opened, and the deformed container 4B is placed upside down on the support portion 7 during its conveyance. It is assumed that the deformed container 4B is set at a predetermined position. The deformed container 4B at this time is substantially hexagonal in cross section as shown in FIGS. 10 (a) and 11 (a), and the bellows 412 of the main body upper portion 41 has a hydraulic pressure (negative) of the filled drinking water W. Pressure) P is in a fully extended state.

  In step S11, supply of the drinking water W from the deformed container 4B into the cold water tank 5 is started. First, the spherical container 4 </ b> A supported by the support portion 7 engages the connector 9 with the cap 43 of the outlet 422 on the bottom surface on the front side.

  Then, the tension acting in the direction in which the bellows 412 of the main body upper portion 41 of the deformed container 4B shrinks and the weight of the drinking water W itself filled in the deformed container 4B act simultaneously, thereby allowing the beverage in the deformed container 4B to drink. Water W is supplied to the cold water tank 5 through the cap 43, the connector 9 and the water supply line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the main body 3, for example.

  By the way, in the initial state, the water supply port 11 of the cold water tank 5 and the water supply port 12 of the hot water tank 6 are both closed. Then, even if it is going to supply drinking water W in the cold water tank 5 and the warm water tank 6 from the deformed container 4B, since both the cold water tank 5 and the warm water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water.

  Therefore, in step S12, when only the water supply port 12 of the hot water tank 6 is opened, the air A in the cold water tank 5 is collected in the convex portion 101 and then flows out into the hot water tank 6 through the communication pipe 102. The The air A flowing out into the hot water tank 6 is discharged to the outside from the water supply port 12 through the discharge pipe 63. For this reason, the drinking water W comes to be supplied from the water supply line 10 into the cold water tank 5.

  Then, the deformed container 4B starts to shrink, but here, as shown in FIG. 10 (b), the bellows 412 of the main body upper portion 41 is folded inward, and the top portion 411 is depressed. Will come.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the water supply port 12, so that the water supply port 12 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  In this way, when the drinking water W is supplied into the cold water tank 5, the initial air A in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 can be quickly brought into an airless state. After that, the water inlet 12 is closed.

  After that, in step S13, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are placed in a cup or the like (not shown) by opening and closing the water supply ports 11 and 12, respectively. Only a fixed amount is poured.

  When the drinking water W in the deformed container 4B is used up, as shown in FIGS. 10C and 11B, the bellows 412 of the upper body 41 of the deformed container 4B is fully extended. Since it adheres to the inside of the main body lower part 42, there is almost no residual liquid at this time. It is necessary to replace it with another spherical container 4A filled with drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again, and it is in the state of the bottle holder 2 ', and the irregular container The engagement between the cap 43 of the 4B outlet 422 and the connector 9 is released. Then, after another modified container 4B is set at a predetermined position, water can be supplied by repeating the steps S11 to S13 again in order.

  As described above, according to the second embodiment, the bellows 412 is provided so as to allow the upper portion 41 of the main body 41 of the deformed container 4B to be bent in the state in which it is mounted in the bottle holder 2 of the water server 1. The bending of the lower part 42 is regulated, and the bellows 412 of the upper part 41 of the main body 41 is bent along the inner side of the lower part 42 of the main body 41 while being bent sequentially as the drinking water W filled in the deformed container 4B decreases. Therefore, as the amount of the drinking water W in the deformed container 4B decreases, the bellows 412 extends and the bellows height decreases.

  Therefore, contrary to the above-mentioned Patent Document 6, there is almost no gap between the main body lower part 42 of the deformed container 4B and the fold of the bellows 412 of the main body upper part 41, and a true airless structure can be realized. It will be a thing. Further, unlike the above-mentioned Patent Document 6, it is not necessary to put the initial air A and the remaining liquid is also small, so that the amount of drinking water filled with respect to the volume of the deformed container 4B increases, and the water server 1 can be downsized. Therefore, it is possible to reduce the transportation cost of the deformed container 4B.

  In the first and second embodiments, the drinking water W is exemplified as the liquid. However, the other liquid may be any liquid such as juice and liquor.

  In the second embodiment, the deformed container 4B has a hexagonal cross section (a shape in which the truncated quadrangular cones are combined in the upside down direction), but other truncated polyhedral cones and buns. The shape may be such that the cones are combined upside down. Further, instead of or in addition to changing the inclination angle of the bellows 412, a weight, a spring, or the like may be provided as means for pressing the top portion 411.

  For example, as shown in FIG. 12, by applying a force F with a weight 44 placed on the top 411 of the deformed container 4B and increasing the pressure in the deformed container 4B, the deformed container can be obtained even if the residual liquid is reduced. The amount of drinking water W taken out from 4B can be secured. Moreover, it becomes possible to install the external outlet of the drinking water W at a free position, and for example, the water supply port 11 (12) can be installed at a higher position that is easier to handle than before. Furthermore, the airlessness can be promoted by quickly discharging the initial air A in the cold water tank 5 and the hot water tank 6 of the water server 1 in which the deformed container 4B is set. Such pressurizing means can be similarly applied to the spherical container 4A of the first embodiment.

  In the second embodiment, the outlet 422 is provided at the bottom 424 of the main body lower portion 42 of the deformed container 4B. However, the outlet 422 may be provided at an arbitrary position on the side surface 421 of the main body lower portion 42. The arbitrary position of the outlet 422 is the same for the spherical container 4A of the first embodiment.

  In the first and second embodiments, the main body 3 of the water server 1 includes both the cold water tank 5 and the hot water tank 6 and communicates them with the communication pipe 102 to form an airless structure. The scope of application of the present invention is not limited to this, and can of course be applied to other airless water servers 1.

(Embodiment of the fifth invention)
Hereinafter, FIG. 1 to FIG. 5 in the embodiment of the fifth invention are read as FIG. 63 to FIG. FIG. 1 is a side sectional view schematically showing the overall configuration of a water server 1 according to an embodiment of the fifth invention, and FIG. 2 is a front view showing the vicinity of the upper part of the server body 3 of the water server 1. In FIG. 1, the left side shows the front and the right side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1, the water server 1 includes a bottle holder 2 and a server body 3. The bottle holder 2 is opened and closed on the server body 3 in order to set a deformed container (corresponding to a drinking water container) 4 containing drinking water W inside or to take out the set deformed container 4 to the outside. They are attached freely (reference numeral 2 in FIG. 1 indicates a closed state and reference numeral 2 ′ indicates an open state). Inside the server main body 3, a cold water tank 5 for cooling the drinking water W and a hot water tank 6 for warming the drinking water W are arranged vertically.

  The deformed container 4 is made of a relatively thin material having high flexibility such as made of PET (polyethylene terephthalate) resin, and can be deformed to be reduced as the drinking water W filled therein decreases. And in the initial state in which the drinking water W was filled, it has a hexagonal cross section. In order to support the deformed container 4 with the support portion 7, a through hole 71 is formed in the support portion 7.

  The deformed container 4 includes a main body upper portion 41 that is an upper half and a main body lower portion 42 that is a lower half in a state of being mounted in the bottle holder 2 of the water server 1. Since the top part of the main body 41 is flat and is turned upside down during transport with drinking water W, the top part 41 can stand on its own. In addition, a bellows that can be expanded and contracted in the vertical direction is formed on a side surface of the upper body portion 41. An outlet 43 for drinking water W is formed at the bottom of the main body lower part 42.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water W, and the drinking water W supplied from the irregularly shaped container 4 is cooled by the cooling means 50, thereby The tank 5 is maintained at a temperature of about 4 to 10 ° C.

  The hot water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water W, and the drinking water W supplied from the deformed container 4 is heated by the heating means 60. Therefore, the temperature is maintained at about 80 to 90 ° C. in the hot water tank 6.

  The deformed container 4 supported by the support portion 7 engages the connector 9 in the through hole 71 with the outlet 43 at the bottom, and the deformed container 4 is connected to the connector 9 via the water supply line 10 further connected to the connector 9. The extracted drinking water W is supplied to the cold water tank 5. A part of the drinking water W supplied to the cold water tank 5 is also supplied to the hot water tank 6 through the communication pipe 102.

  That is, as shown in FIG. 1, a convex portion 101 is provided in the vicinity of the top of the cold water tank 5, and a communication pipe 102 that communicates the inside of the convex portion 101 with the inside of the hot water tank 6 is provided. Specifically, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5 and the upper end of the communication pipe 102 is inserted into the convex portion 101 to open, thereby forming a so-called double tubular structure. . And the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102 by connecting the water supply line 10 to a part separated from the convex portion 101. The air A in the tank 5 is easy to flow out into the hot water tank 6.

  In addition, a drain pipe 51 is provided for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5, and the drinking water W in the hot water tank 6 is discharged from the vicinity of the top of the hot water tank 6. A discharge pipe 63 is provided.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a not-shown cup or the like by a predetermined amount by opening and closing the water supply ports 11 and 12. It is supposed to be.

  FIG. 3 is a block diagram showing a control system of the water server 1.

  As shown in FIG. 3, the control system of this water server is a cold water lamp (corresponding to a display lamp corresponding to the first selection switch) 201 and a cold water switch (corresponding to the first selection switch) 202. A hot water lamp (corresponding to a display lamp corresponding to the second selection switch) 203, a hot water switch (corresponding to the second selection switch) 204, a cold water controller 205, and a hot water controller 206, The driving circuit 207 of the cooling means 50, the cold water sensor 208, the energization circuit 209 of the heating means 60, and the hot water sensor 210 are provided.

  Here, the chilled water switch 202 selects one of a cooling mode for cooling the chilled water tank and a non-cooling mode in which the chilled water tank 5 is not cooled, and the chilled water lamp 201 changes the selected mode. To display. The hot water switch 204 selects one of a heating mode in which the hot water tank 6 is heated and a non-heating mode in which the hot water tank 6 is not heated. The hot water lamp 203 selects the selected mode. To display.

  An operation panel 200 is disposed at the upper front of the server main body 3 of the water server 1. When the user operates the cold water switch 202 and the hot water switch 204 disposed on the operation panel 200, the operation panel 200 is provided. The cold water lamp 201 and the hot water lamp 203 arranged near the switch can be visually recognized.

  FIG. 4 is a flowchart showing an operation example of the water server 1, and FIG. 5 is an explanatory diagram showing an air bleeding structure of the water server. First, in FIG. 1, the bottle holder 2 of the water server 1 is opened, and the deformed container 4 is supported on the support portion 7 in an upside down direction while being transported, in the state of the bottle holder 2 ′. As a result, the deformed container 4 is set at a predetermined position. The deformed container 4 at this time has a substantially hexagonal cross section, and the bellows of the main body upper portion 41 is in a state of being fully extended by receiving the water pressure (negative pressure) of the filled drinking water W.

  Next, in order to supply the drinking water W from the deformed container 4 into the cold water tank 5, the outlet 43 on the bottom surface of the deformed container 4 supported by the support portion 7 is engaged with the connector 9.

  Then, the tension acting in the direction in which the bellows of the main body upper portion 41 of the deformed container 4 shrinks and the weight of the drinking water W itself filled in the deformed container 4 act simultaneously, so that the drinking water in the deformed container 4 W is supplied to the cold water tank 5 through the connector 9 and the water supply line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the server main body 3, for example.

  By the way, in the initial state, the water supply port 11 of the cold water tank 5 and the water supply port 12 of the hot water tank 6 are both closed. Then, even if it is going to supply drinking water W from the deformed container 4 into the cold water tank 5 and the hot water tank 6, since both the cold water tank 5 and the hot water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water.

  Therefore, in FIG. 5, when only the water supply port 12 of the hot water tank 6 is opened, the air A in the cold water tank 5 is collected on the convex portion 101, and then flows out into the hot water tank 6 through the communication pipe 102. The The air A flowing out into the hot water tank 6 is discharged to the outside from the water supply port 12 through the discharge pipe 63. For this reason, the drinking water W comes to be supplied from the water supply line 10 into the cold water tank 5.

  Then, the deformed container 4 starts to be reduced and deformed, but here, the bellows of the upper part 41 of the main body is folded inward, and the top part is depressed.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the water supply port 12, so that the water supply port 12 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  In this way, when the drinking water W is supplied into the cold water tank 5, the initial air A in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 and the inside of the hot water tank 6 can be quickly brought into an airless state. After that, the water inlet 12 is closed.

  Next, step S1 in FIG. 4 is entered. When the power is turned on, the chilled water switch 202, the hot water switch 204, etc. are all set to default values, and the chilled water switch 202 is on, which is the default value, so the process proceeds to step S2. Here, since the cold water sensor 208 is high (temperature higher than 10 ° C.), the refrigerator of the cooling means 50 is turned on via the drive circuit 207 (step S3), and the cold water lamp 201 is turned on. (Step S4).

  Then, step S5 is entered. Also here, since the hot water switch 204 is initially on, which is the default value, the process directly proceeds to step S7. Here, since the hot water sensor 210 is low (temperature lower than 80 ° C.), the heater of the heating means 60 is turned on via the energization circuit 209 (step S7), and the hot water lamp 203 is turned on. (Step S8).

  Then, returning to step S1 and repeating the above steps S1 to S8, if the drinking water W is cooled in the cold water tank 5, the cold water sensor 208 will eventually become low (temperature lower than 4 ° C.), so driving The refrigerator of the cooling means 50 is turned off via the circuit 207 (step S9), and the cold water lamp 201 is turned off (step S10). In this way, the inside of the cold water tank 5 can be maintained at a temperature of about 4 to 10 ° C.

  Also, as the drinking water W is heated in the hot water tank 6, the hot water sensor 210 will eventually become high (temperature higher than 90 ° C.), so the heater of the heating means 60 is turned off via the energization circuit 209. In step S11, the hot water lamp 203 is turned off (step S12). In this way, the inside of the hot water tank 6 can be maintained at a temperature of about 80 to 90 ° C.

  The drinking water W thus cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a glass (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. .

  Now, assume that the user turns off the cold water switch 202 in step S1. Then, also in this case, the refrigerator of the cooling means 50 is turned off via the drive circuit 207 (step S9), and the cold water lamp 201 is turned off (step S10). After a while, the inside of the cold water tank 5 can be returned to room temperature.

  Also, assume that the user turns off the hot water switch 204 in step S5. Then, also in this case, the heater of the heating means 60 is turned off via the energization circuit 209 (step S11), and the hot water lamp 203 is turned off (step S12). After a while, the inside of the hot water tank 6 can be returned to room temperature.

  The drinking water W returned to the normal temperature in the cold water tank 5 or the drinking water W returned to the normal temperature in the hot water tank 6 by opening and closing the water supply ports 11, 12 is provided in a predetermined amount in a cup or the like (not shown). Only poured.

  If the drinking water W in the deformed container 4 is used up, the bellows of the upper part 41 of the main body 41 of the deformed container 4 will be stretched again and will be in close contact with the inside of the lower part 42 of the main body. The liquid is almost gone. It is necessary to replace it with another deformed container 4 filled with drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again, and the deformed container is in the state of the bottle holder 2 ′. The engagement between the four outlets 43 and the connector 9 is released. Then, after another modified container 4 is set at a predetermined position, water can be supplied by repeating the steps S1 to S12 again. When the power is turned off, all operations are finished.

  As described above, according to the present embodiment, according to the water server 1, the drinking water W is prohibited from being mixed into the cold water tank 5 and the hot water tank 6 in the server body 3 from the deformed container 4. On the condition that the cooling tank 5 is cooled and a non-cooling mode in which the cooling tank 5 is not cooled, and one of the cooling mode and the non-cooling mode is selected. A heating mode for heating the hot water tank 6 and a non-heating mode for non-heating the hot water tank 6, and either one of the heating mode or the non-heating mode. Since the hot water switch 204 for selection is provided, the airless structure can suppress the growth of bacteria. Therefore, even if the drinking water W supplied from the deformed container 4 to the cold water tank 5 and the hot water tank 6 is used at room temperature, there is no concern about hygiene. Which tank is used at room temperature depends on the user's preference.

  In addition, in the said embodiment, although the drinking water W is used, it replaces with this and all liquids, such as juice and liquor, can be used.

  In the above embodiment, the deformed container 4 has a hexagonal cross section (a shape in which the truncated quadrangular pyramids are combined upside down), but other truncated polyhedral cones and truncated cones. The shape may be such that the bodies are combined upside down. Moreover, it replaces with the deformed container 4 made from PET, and a spherical container made from PET may be used, and furthermore, the drinking water W is taken out by using a plastic bag and piercing the needle. It may be.

  In the above embodiment, the server main body 3 of the water server 1 includes both the cold water tank 5 and the hot water tank 6 and communicates them with the communication pipe 102 to form an airless structure. The scope of application of the present invention is not limited to this, and it is needless to say that the present invention can be applied to other airless water servers 1.

  Further, in the above embodiment, the cold water lamp 201 is disposed on the operation panel 200 directly above the cold water switch 202 and the hot water lamp 203 is disposed directly above the hot water switch 204. However, the arrangement and the like thereof are arbitrary. For example, the cold water switch 202 and the cold water lamp 201 may be integrated, and the hot water switch 204 and the hot water lamp 203 may be integrated. Further, the cold water switch 202 and the hot water switch 204 are combined into one changeover switch, and the cold water lamp 201 and the hot water lamp 203 may be arranged around the switch, or a room temperature switch or a room temperature lamp may be provided. Good.

  In the above-described embodiment, the cold water tank 5 and the hot water tank 6 are supplied with water from the deformed container 4 as a drinking water container, and the power is turned on after the completion, but this takes about several minutes. . Therefore, the power may be turned on from the beginning, and after a delay of about several minutes by a timer, step S1 may be automatically entered.

  In the above embodiment, the water inlet 12 is initially fully opened, and the air A is completely removed from the cold water tank 5 and the hot water tank 6 and then the water inlet 12 is closed. For example, it is more convenient if air venting means such as a float valve is provided in front of the water supply port 12 to automatically vent the air.

  In the above embodiment, since both the cold water switch 202 and the hot water switch 204 are on as default values that are set when the power is turned on, the cold water tank 5 and the hot water tank 6 are set to their respective set temperatures. The temperature is adjusted so that However, once the temperature is adjusted, if either the cold water switch 202 or the hot water switch 204 is turned off, the temperature does not easily return to room temperature. This is even more so when cold insulation or insulation is used around the tank. Therefore, when normal temperature use is expected to some extent, the default value set upon power-on may be reversed from the above, and at least either the cold water switch 202 or the hot water switch 204 may be turned off.

  In the above embodiment, simple on / off control using the cold water regulator 205 and the hot water regulator 206 is adopted as a control method for the refrigerator of the cooling means 50 and the heater of the heating means 60. Further, complicated control may be performed by installing a computer.

(Embodiment 1 of the sixth invention)
Hereinafter, FIGS. 1 to 16 in the sixth embodiment are read as FIGS. 68 to 83 in the brief description of the drawings. FIG. 1 is a side sectional view schematically showing the overall configuration of a water server 1 according to Embodiment 1 of the sixth invention, and FIG. 2 is a front view showing the vicinity of the upper portion of the server body 3 of the water server 1 according to Embodiment 1. It is. In FIG. 1, the left side shows the front and the right side shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1, the water server 1 includes a bottle holder 2 and a server body 3. The bottle holder 2 is opened and closed on the server body 3 in order to set a bag body (corresponding to a first container) 4 containing drinking water W inside or to take out the set bag body 4 to the outside. They are attached freely (reference numeral 2 in FIG. 1 indicates a closed state and reference numeral 2 ′ indicates an open state). Inside the server main body 3, a cold water tank 5 for cooling the drinking water W and a hot water tank 6 for warming the drinking water W are arranged vertically.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, and can be deformed by shrinking as the drinking water filled therein decreases. And in the initial state filled with drinking water, it is roundish as a whole and has a slightly flat hexahedral shape. Here, the bag body 4 is supported by the support portion 7 in a substantially standing posture. The shape of the bag body 4 in the initial state may be another shape such as a square or a cylindrical shape.

  The support portion 7 is provided with a relatively large radius from the back to the front so as not to obstruct the reduction deformation of the bag body 4 as much as possible, and is provided with a relatively small radius at the front. The bag 4 can be set so as to be reduced and deformed without excessive twisting when the drinking water filled in the bag 4 is taken out between the two rounds. Although not shown in the figure, appropriate rounds are provided on both the left and right sides of the support portion 7 to achieve the same effect.

  The bag body 4 supported by the support portion 7 can be pierced in the vicinity of the bottom surface on the front side by piercing the needle 8 horizontally or slightly downward. The needle 8 is attached to the support portion 7 on the front side and pierces the bag body 4. Note that the direction in which the needle 8 is pierced into the bag body 4 is not limited to this, and may be any one of upward, downward, and an intermediate direction therebetween.

  And the drinking water taken out from the bag body 4 via the flexible hose 9 made of, for example, silicon rubber connected to the base of the needle 8 and the line 10 further connected to the hose 9 is cooled by a cold water tank ( It corresponds to the second container.) 5 is supplied. A part of the drinking water supplied to the cold water tank 5 is also supplied to the hot water tank (corresponding to a third container) 6 through the communication pipe 102.

  That is, as shown in FIG. 1, a convex portion 101 is provided near the center of the top of the cold water tank 5, and a communication pipe 102 that communicates the inside of the convex portion 101 and the vicinity of the bottom of the hot water tank 6 substantially linearly is provided. ing. Specifically, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5 and the upper end of the communication pipe 102 is inserted into the convex portion 101 to open, thereby forming a so-called double tubular structure. . And the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102 by connecting the water supply line 10 to a part separated from the convex portion 101. The air A in the tank 5 is easy to flow out into the hot water tank 6.

  In addition, a drainage pipe (corresponding to a first pipe) 51 for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 is provided, and the drinking water W in the hot water tank 6 is provided. Is provided from the vicinity of the top of the hot water tank 6. An automatic valve (corresponding to a first valve) 11 such as an electromagnetic valve is interposed in the drain pipe 51, and an automatic valve (corresponding to a second valve) 12 is also interposed in the drain pipe 63. Yes. Each downstream side of these automatic valves 12 and 13 serves as a junction pipe 52 and is opened to the outside via a manual valve (corresponding to a third valve) 13.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water, and the drinking water supplied from the bag body 4 is cooled by the cooling means 50, whereby the cold water tank 5. The temperature is maintained at about 4 to 10 ° C. Here, the cooling means 50 is disposed around the cold water tank 5. For this reason, in the cold water mode in which the drinking water in the cold water tank 5 is cooled, the cooling means 50 cools the drinking water in the cooling tank 5 downward along the peripheral wall of the tank and is arranged in the center of the tank. Natural convection is generated that flows upward along the outer wall of the communication pipe. By this natural convection, the drinking water in the cooling tank 5 is stirred and cooled almost uniformly. However, in the sterilization mode, which will be described later, since the cooling means 50 is not used for cooling, it is considered that natural convection in the opposite direction is generated by absorbing external heat through the tank wall.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water, and the drinking water supplied from the bag body 4 is heated by the heating means 60. The hot water tank 6 is maintained at a temperature of about 80 to 90 ° C. Here, the heating means 60 is arranged around the hot water tank 5. For this reason, in the warm water mode to be described later, the potable water in the warm water tank 6 flows upward along the peripheral wall of the hot water tank 6 by being heated by the heating means 60, and along the outer wall of the communication pipe disposed in the center of the tank. It generates natural convection that flows downward. By this natural convection, the drinking water in the hot water tank 5 is agitated and heated almost uniformly. Further, in the sterilization mode described later, it is considered that natural convection in the same direction as described above is generated because the heating means 60 heats.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are not shown by opening and closing the respective automatic valves 11 and 12 and the manual valve 13 at appropriate timing. A predetermined amount is poured into a cup or the like.

  FIG. 3 is a block diagram mainly showing a valve control system of the water server 1 according to the first embodiment.

  As shown in FIG. 3, the control system of valves mainly in the water server 1 according to the first embodiment includes a cold water lamp 201, a cold water switch 202, a hot water lamp 203, a hot water switch 204, and a sterilization lamp 205. The sterilization switch 206, the automatic valve (V1) 11, the automatic valve (V2) 12, and the manual valve (V3) 13 are provided.

  Here, the chilled water switch 202 is a mode selection switch for selecting a chilled water mode (corresponding to the first mode) for cooling drinking water in the chilled water tank 5, and the chilled water lamp 201 is operated by the chilled water switch 202. Indicates that is selected. The warm water switch 204 is a mode selection switch for selecting a warm water mode (corresponding to the second mode) for warming drinking water in the warm water tank 6, and the warm water lamp 203 is selected by the warm water switch 204. Is displayed. The sterilization switch 206 is a mode selection switch for selecting a sterilization mode (corresponding to the third mode) for sterilizing the drinking water in the cold water tank with the drinking water (hot water) heated in the hot water tank 6. Yes, the sterilization lamp 205 displays that the sterilization mode is selected by the sterilization switch 206.

  An operation panel 200 is disposed at the upper front of the server main body 3 of the water server 1, and the user operates the cold water switch 202, the hot water switch 204, and the sterilization switch 206 disposed on the operation panel 200. At this time, the cold water lamp 201, the hot water lamp 203, and the sterilization lamp 205 arranged near these switches can be visually recognized. Further, inside the server body 3 of the water server 1, the operation panel 200, the energization circuits 211 and 212 of the automatic valves 11 and 12, and the limit switch (LS) 213 of the manual valve 13 are electrically connected. The control device 210 is arranged. The water server 1 is operated under the control of the control device 210.

  FIG. 4 is a flowchart mainly showing an operation example of valves in the water server 1, and FIGS. 5 to 8 are explanatory diagrams showing an operation example of the water server 1. In FIGS. 5 to 8, the black valves are closed and the white valves are open. Here, before entering the step S1, the bottle holder 2 of the water server 1 is opened and the bag body 4 is supported in a substantially standing posture on the support portion 7 in a state like the bottle holder 2 ′. It is assumed that the bag body 4 is set at a predetermined position.

  Then, the supply of the drinking water W from the bag body 4 into the cold water tank 5 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 is removed from the needle 8. It is discharged into the hose 9. The drinking water W discharged to the hose 9 is further supplied to the cold water tank 5 through the line 10. After that, the bottle holder 2 ′ of the water server 1 is closed so that the bottle holder 2 is in the state. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the server main body 3, for example.

  When the power is turned on, the automatic valve (V1) 11 is closed and the automatic valve (V2) 12 is opened as an initial mode (step S1). It is assumed that the manual valve (V3) 13 is closed. Then, even if it is going to supply drinking water W from the bag body 4 into the cold water tank 5 and the hot water tank 6, since both the cold water tank 5 and the hot water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water W. Therefore, when the manual valve 13 of the hot water tank 6 is opened, as shown in FIG. 5, the air A in the cold water tank 5 is collected on the convex portion 101, and then passes through the communication pipe 102 and into the hot water tank 6. Leaked. The air A that has flowed into the hot water tank 6 is discharged from the manual valve 13 to the outside through the discharge pipe 63. For this reason, the drinking water W comes to be supplied from the line 10 into the cold water tank 5.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the manual valve 13, so that the manual valve 13 remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  In this way, when the drinking water W is supplied into the cold water tank 5, the initial air A in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 and the inside of the hot water tank 6 can be quickly brought into an airless state. Thereafter, when the manual valve 13 is closed, the drinking water W in the cold water tank 5 is cooled by the cooling means 50 and the drinking water W in the hot water tank 6 is warmed by the heating means 60 according to a predetermined sequence.

  Next, it is determined whether the cold water switch 202 is on or off (step S2). Now, assume that the cold water switch 202 is turned on. At this time, after the automatic valve 11 is opened and the automatic valve 12 is closed (step S3), the cold water lamp 201 is turned on (step S4). Then, as shown in FIG. 6, the drinking water (cold water) cooled in the cold water tank 5 can be supplied. Then, the manual valve 13 is opened and closed as appropriate, and water is supplied to a paper cup (not shown). Then, the process returns to step S2. If the cold water switch 202 is turned off, the cold water lamp 201 is turned off (step). S5).

  Next, it is determined whether the hot water switch 204 is on or off (step S6). Now, assume that the hot water switch 204 is turned on. At this time, after the automatic valve 11 is closed and the automatic valve 12 is opened (step S7), the hot water lamp 203 is turned on (step S8). Then, as shown in FIG. 7, the drinking water (hot water) warmed in the hot water tank 6 can be supplied. Then, the manual valve 13 is opened and closed as appropriate to supply water to a paper cup (not shown) and the process returns to step S2, but this time, if the hot water switch 204 is turned off, the hot water lamp 203 is turned off (step S9).

  Next, it is determined whether the sterilization switch 206 is on or off (step S10). Assume that the sterilization switch 206 is turned on. At this time, it is determined whether or not the manual valve 13 is closed (step S11). If it is determined that the manual valve 13 is now closed, the automatic valve 11 is opened, the automatic valve 12 is opened (step S12), and the sterilization lamp 205 is turned on (step S13). Then, the cooling means 50 of the cold water tank 5 is turned off, whereby the drinking water W in the cold water tank 5 is not cooled. On the other hand, the heating means 60 of the hot water tank 6 is turned on, whereby the drinking water W in the hot water tank 6 is heated to become hot water. Then, as shown in FIG. 8, the hot water in the hot water tank 6 flows into the cold water tank 5 only by natural convection, and the cold water in the cold water tank 5 enters the hot water tank 6 in accordance with the amount of the hot water that has flowed in. Inflow. Thereby, the drinking water in both tanks is circulated, and the water temperature in the cold water tank 5 rises to about 55 ° C. and is sterilized. Thereafter, the process returns to step S2, but this time, if the sterilization switch 206 is turned off or turned on, but the manual valve 13 is opened, the sterilization lamp 205 is turned off (step S14).

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1 is opened again. Then, after setting another bag 4 at a predetermined position in the state of the bottle holder 2 ′, water can be supplied by repeating the steps S1 to S14 again. When the power is turned off, all operations are finished.

  As described above, according to the first embodiment, the cold water mode in which the drinking water W in the cold water tank 5 is cooled, the warm water mode in which the drinking water W in the hot water tank 6 is warmed, and the hot water tank 6 are heated. A mode selection switch (cold water switch 202) that has a sterilization mode for sterilizing the inside of the cold water tank 5 with the drinking water W and can selectively select any one of the cold water mode, the hot water mode, and the sterilization mode. Since the hot water switch 204 and the sterilization switch 206) are provided, each mode can be executed with one touch. Of these, in the cold water mode and the hot water mode, the airless structure makes it difficult for the drinking water W and the air A to come into contact with each other in each tank, and consideration is given to hygiene. In the third mode, the bag 4 Even if some air A is mixed in the cold water tank 5 due to replacement of the water, the drinking water W in the cold water tank 5 can be sterilized with the drinking water W heated in the hot water tank 6. In this way, a sterilization method suitable for the waterless water server 1 could be obtained. Further, according to the first embodiment, since only the manual valve 13 is finally opened to the outside, almost all of the pipeline system can be sterilized in the sterilization mode.

(Embodiment 2 of the sixth invention)
FIG. 9 is a side sectional view schematically showing the overall configuration of the water server 1a according to the second embodiment of the sixth invention, and FIG. 10 is a front view showing the vicinity of the upper portion of the server body 3 of the water server 1a according to the second embodiment. It is. In FIG. 1a, the left side shows the front and the right side shows the back. Further, as a material for the water server 1a, synthetic resin, rubber, metal, etc. are mainly used in place. However, below, detailed description may be abbreviate | omitted by attaching | subjecting the same number to the element which is common in the water server 1 which concerns on the said Embodiment 1. FIG.

  As shown in FIG. 9, the water server 1 a includes a bottle holder 2 and a server body 3. The bottle holder 2 is opened and closed on the server body 3 in order to set a bag body (corresponding to a first container) 4 containing drinking water W inside or to take out the set bag body 4 to the outside. They are attached freely (reference numeral 2 in FIG. 9 indicates a closed state and reference numeral 2 ′ indicates an open state). Inside the server main body 3, a cold water tank 5 for cooling the drinking water W and a hot water tank 6 for warming the drinking water W are arranged vertically. The bag body 4, the support part 7, and the needle 8 are as described above.

  And the drinking water W taken out from the bag body 4 through the flexible hose 9 made of, for example, silicon rubber connected to the base of the needle 8 and the line 10 further connected to the hose 9 is a cold water tank. (Corresponding to the second container). A part of the drinking water W supplied to the cold water tank 5 is also supplied to the hot water tank (corresponding to a third container) 6 through the communication pipe 102.

  That is, as shown in FIG. 9, a convex portion 101 is provided in the vicinity of the center of the top of the cold water tank 5, and a communication pipe 102 that communicates the inside of the convex portion 101 and the inside of the hot water tank 6 substantially linearly is provided. Specifically, the substantially cylindrical convex portion 101 is slightly protruded from the top of the cold water tank 5 and the upper end of the communication pipe 102 is inserted into the convex portion 101 to open, thereby forming a so-called double tubular structure. . And the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102 by connecting the water supply line 10 to a part separated from the convex portion 101. The air A in the tank 5 is easy to flow out into the hot water tank 6.

  In addition, a drainage pipe (corresponding to a fourth pipe) 51 for discharging the drinking water W in the cold water tank 5 from the vicinity of the bottom of the cold water tank 5 is provided, and the drinking water W in the hot water tank 6 is provided. Is discharged from the vicinity of the top of the hot water tank 6 (corresponding to the fifth pipe) 63. The drain pipe 51 is provided with a manual valve (corresponding to a fourth valve) 11a, and the drain pipe 63 is provided with a manual valve (corresponding to a fifth valve) 12a. The upstream sides of the manual valves 11a and 12a are joined to form a joining pipe 52a, which is opened to the outside via an automatic valve (corresponding to a sixth valve) 13a.

  The cold water tank 5 is provided with a cooling means 50 such as a refrigerator for cooling the drinking water, and the drinking water supplied from the bag body 4 is cooled by the cooling means 50, whereby the cold water tank 5. The temperature is maintained at about 4 to 10 ° C. Here, the arrangement of the cooling means 50 and the direction of natural convection caused by the arrangement are as described above.

  The warm water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water, and the drinking water supplied from the bag body 4 is heated by the heating means 60. The hot water tank 6 is maintained at a temperature of about 80 to 90 ° C. Here, the arrangement of the heating means 60 and the direction of natural convection caused by the arrangement are as described above.

  Further, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a cup or the like (not shown) by a predetermined amount by opening and closing the manual valves 11a and 12a, respectively. It is like that.

  FIG. 11 is a block diagram mainly showing a valve control system of the water server 1a according to the second embodiment. As shown in FIG. 11, the control system of valves mainly in the water server 1a according to the second embodiment includes a cold water lamp 201, a cold water switch 202, a hot water lamp 203, a hot water switch 204, and a sterilization lamp 205. The sterilization switch 206, the manual valve (V1a) 11a, the manual valve (V2a) 12a, and the automatic valve (V3a) 13a are provided.

  Here, the chilled water switch 202 is a mode selection switch for selecting a chilled water mode (corresponding to the first mode) for cooling the drinking water W in the chilled water tank 5. This indicates that a tank has been selected. The warm water switch 204 is a mode selection switch for selecting a warm water mode (corresponding to the second mode) for warming the drinking water W in the warm water tank 6, and the warm water lamp 203 is a warm water switch 204 for selecting the warm water mode. It is displayed that it has been selected. The sterilization switch 206 is a mode selection for selecting a sterilization mode (corresponding to the third mode) in which the drinking water in the cold water tank 5 is sterilized with the drinking water (warm water) W heated in the hot water tank 6. The sterilization lamp 205 displays that the sterilization mode has been selected by the sterilization switch 206.

  An operation panel 200 is disposed on the upper front of the server main body 3 of the water server 1a, and the user operates the cold water switch 202, the hot water switch 204, and the sterilization switch 206 disposed on the operation panel 200. At this time, the cold water lamp 201, the hot water lamp 203, and the sterilization lamp 205 arranged near these switches can be visually recognized. In addition, the operation panel 200, the limit switches (LS) 211a and 212a of the manual valves 11a and 12a, and the energization circuit 213a of the automatic valve 13a are electrically connected to the inside of the server body 3 of the water server 1a. The control device 210a is arranged. And this water server 1a operate | moves under control of this control apparatus 210a.

  FIG. 12 is a flowchart mainly showing an operation example of valves in the water server 1a according to the second embodiment, and FIGS. 13 to 16 are explanatory diagrams showing an operation example of the water server 1a. In the valves in FIGS. 13 to 16, the black ones are closed, and the white ones are open. Here, before entering the step S1a, by opening the bottle holder 2 of the water server 1a and supporting the bag body 4 on the support portion 7 in a substantially standing posture in a state like the bottle holder 2 ′, It is assumed that the bag body 4 is set at a predetermined position.

  Then, the supply of the drinking water W from the bag body 4 into the cold water tank 5 is started. First, the needle 8 is set on the support portion 7. The user manually operates to push the needle 8 into the bag body 4. Then, the tip of the needle 8 breaks through the front lower side of the bag body 4 and reaches the inside thereof.

  Then, the tension acting in the direction in which the bag body 4 shrinks and the weight of the drinking water W itself filled in the bag body 4 act simultaneously, so that the drinking water W in the bag body 4 is removed from the needle 8. It is discharged into the hose 9. The drinking water W discharged to the hose 9 is further supplied to the cold water tank 5 through the line 10. After that, the bottle holder 2 ′ of the water server 1 a is closed, and the bottle holder 2 is set. However, the bottle holder 2 does not necessarily need to be openable and closable, and may be simply placed on the server main body 3, for example.

  When the power is turned on, as an initial mode, the manual valve 11a is opened and the manual valve 12a and the automatic valve 13a are closed (step S1a). Then, even if it is going to supply drinking water W from the bag body 4 into the cold water tank 5 and the hot water tank 6, since both the cold water tank 5 and the hot water tank 6 contain a large amount of air A, both tanks 5 , 6 is difficult to supply drinking water W. Therefore, in step S1a, if the manual valve 12a of the hot water tank 6 is opened on condition that the manual valve 11a and the automatic valve 13a are closed, the air A in the cold water tank 5 is convex as shown in FIG. It is collected in the section 101, and flows out from there through the communication pipe 102 into the hot water tank 6. The air A that has flowed into the hot water tank 6 is discharged from the manual valve 12a to the outside through the discharge pipe 63. For this reason, the drinking water W comes to be supplied from the line 10 into the cold water tank 5.

  When the inside of the cold water tank 5 is filled with the drinking water W, the drinking water W flows out from the communication pipe 102 to the hot water tank 6 this time. Until the hot water tank 6 is filled with the drinking water W, the air A comes out from the manual valve 12a, so that the manual valve 12a remains open until then. The used amount from the respective tanks 5 and 6 after the hot water tank 6 is filled with the drinking water W is supplied to the respective tanks 5 and 6 individually.

  In this way, when the drinking water W is supplied into the cold water tank 5, the initial air A in the cold water tank 5 is discharged to the hot water tank 6 through the communication pipe 102 by the supplied drinking water W. The inside of the cold water tank 5 and the inside of the hot water tank 6 can be quickly brought into an airless state. Thereafter, when the manual valve 12a is closed, the cold water tank 5 is cooled and the hot water tank 6 is warmed according to a predetermined sequence.

  Next, it is determined whether the cold water switch 202 is on or off (step S2). Now, assume that the cold water switch 202 is turned on. At this time, after closing the manual valve 12a and the automatic valve 13a (step S3a), the cold water lamp 201 is turned on (step S4). Then, as shown in FIG. 14, the drinking water (cold water) cooled in the cold water tank 5 can be supplied. Then, the manual valve 11a is appropriately opened and closed to supply water to a paper cup or the like (not shown), and then the process returns to step S2. If the cold water switch 202 is turned off, the cold water lamp 201 is turned off (step). S5).

  Next, it is determined whether the hot water switch 204 is on or off (step S6). Now, assume that the hot water switch 204 is turned on. At this time, after closing the manual valve 11a and the automatic valve 13a (step S7a), the hot water lamp 203 is turned on (step S8). Then, as shown in FIG. 15, the drinking water (hot water) warmed in the hot water tank 6 can be supplied. Then, the manual valve 12a is appropriately opened and closed to supply water to a paper cup or the like (not shown), and the process returns to step S2. However, if the hot water switch 204 is turned off, the hot water lamp 203 is turned off (step). S9).

  Next, it is determined whether the sterilization switch 206 is on or off (step S10). Assume that the sterilization switch 206 is turned on. At this time, it is determined whether or not both of the manual valves 11a and 12a are closed (step S11a). If both manual valves 11a and 12a are closed, the automatic valve 13a is opened (step S12a), and the sterilization lamp 205 is turned on (step S13). Then, the cooling means 50 is turned off, so that the drinking water W in the cold water tank 5 is not cooled. On the other hand, the heating means 60 is turned on, whereby the drinking water W in the hot water tank 6 is heated to become hot water. Then, as shown in FIG. 16, the hot water in the hot water tank 6 flows into the cold water tank 5 only by natural convection, and the cold water in the cold water tank 5 enters the hot water tank 6 according to the amount of the hot water that has flowed in. Inflow. Thereby, the drinking water in both tanks is circulated, and the water temperature in the cold water tank 5 rises to about 55 ° C. and is sterilized. Thereafter, the process returns to step S2, but this time, if the sterilization switch 206 is turned off or turned on, but if any of the manual valves 11a and 12a is opened, the sterilization lamp 205 is turned off ( Step S14).

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the bottle holder 2 of the water server 1a is opened again. Then, after another bag 4 is set at a predetermined position in the state of the bottle holder 2 ', water can be supplied by repeating the steps S1a to S14 again. When the power is turned off, all operations are finished.

  As described above, according to the second embodiment, each mode can be executed with a single touch as in the first embodiment. Among these, in the cold water mode and the hot water mode, the airless structure makes it difficult for the drinking water and air to come into contact with each other in the tanks, and in consideration of hygiene, the bag 4 is replaced in the sterilization mode. Thus, even if some air is mixed in the cold water tank 5, the drinking water in the cold water tank 5 can be sterilized with the drinking water heated in the hot water tank 6. In this way, a sterilization method suitable for the airless water server 1a could be obtained. However, according to the second embodiment, there are fewer automatic valves than in the first embodiment, which is advantageous in terms of arrangement and manufacturing cost.

  In the first and second embodiments, the drinking water W is used. However, any liquid such as juice and liquor can be used instead.

  Moreover, in the said Embodiment 1, 2, although the drinking water W is taken out by using the bag body 4 and sticking a needle into it, it replaces with this and uses the container made from PET, and its connection tool. Also good.

  In the first and second embodiments, the server main body 3 of the water server 1 or 1a is provided with both the cold water tank 5 and the hot water tank 6, and these are communicated by the communication pipe 102 to provide an airless structure. However, the scope of application of the present invention is not limited to this, and can be applied to other waterless water servers.

  In the first and second embodiments, the cold water lamp 201 is disposed on the operation panel 200 directly above the cold water switch 202, the hot water lamp 203 is disposed directly above the hot water switch 204, and the sterilization switch 206 is directly above. Although the disinfection lamp 205 is disposed, the disposition and the like are arbitrary. For example, the cold water switch 202 and the cold water lamp 201 are integrated, the warm water switch 204 and the warm water lamp 203 are integrated, and the disinfection switch 206 is replaced with the disinfection lamp 205. And may be integrated. Furthermore, the cold water switch 202, the hot water switch 204, and the sterilization switch 206 may be combined into one changeover switch, and the cold water lamp 201, the hot water lamp 203, and the sterilization lamp 205 may be disposed in the vicinity thereof.

  In the first and second embodiments, water is supplied from the bag 4 to the cold water tank 5 and the hot water tank 6 and the power is turned on after the water supply is completed, but this takes about several minutes. Therefore, the power may be turned on from the beginning, and after a delay of about several minutes by a timer, step S1 (S1a) may be automatically entered.

  In the first embodiment, the valves 11 and 12 are automatic valves and the valve 13 is a manual valve. In the second embodiment, the valves 11a and 12a are manual valves and the valve 13a is an automatic valve. It is more convenient to use the valve as an automatic valve to automatically vent the air.

(Embodiment of the seventh invention)
Hereinafter, FIGS. 1 to 6 in the embodiment of the seventh invention are replaced with FIGS. 84 to 89 in the brief description of the above drawings. FIG. 1 is a side view schematically showing the entire configuration of a water server 1 which is a kind of liquid supply apparatus according to an embodiment of the seventh invention, and FIG. 2 shows a state in which a bag body 4 is put in an inner box 2. FIG. 5 is a perspective view and FIG. 5 is an explanatory view showing a state during maintenance of the cold water tank 5. In FIG. 1, the left side shows the front and the right side shows the back, whereas in FIG. 2, the left shows the back and the right shows the back. Further, as a material for the water server 1, synthetic resin, rubber, metal, and the like are mainly used in place.

  As shown in FIG. 1, the water server 1 includes a server upper portion (corresponding to a support portion) 7 that supports an inner box (corresponding to a protective container of a first container) 2 and a main body 3. . The inner box 2 can be opened and closed before it is set in the server upper part 7 for storing the bag 4 containing the drinking water W as a liquid, or for taking out the stored bag 4 to the outside. . In addition, a cold water tank (corresponding to a second container) 5 for cooling the drinking water W and a hot water tank 6 for warming the drinking water W are arranged vertically inside the main body 3.

  The bag body 4 is made of a material having a high elasticity such as a nylon film having a multilayer structure, for example, and can be reduced and deformed as the drinking water W filled therein decreases. And in the initial state with which the drinking water W was filled, it is round as a whole and has a slightly flat hexahedral shape. The shape of the bag body 4 in the initial state may be another shape such as a square shape or a cylindrical shape. Although not clear from FIG. 1, a synthetic resin outlet that also serves as a spout for drinking water W protrudes from a small hole in the center of the back side of the bag 4 as close to the bottom as possible. The outlet is also sealed with a cap 24 made of synthetic resin.

  As shown in FIG. 2, the inner box 2 has a box-shaped box body 21 that is open at the top and is largely cut out in a substantially V shape so that only the back protrudes the cap 24. A box cover 22 detachably fitted on the main body 21 and projections 23 and 23 formed on the left and right sides of the box main body 21 are provided. FIG. 2 is an explanatory view showing a state in which the bag body 4 is housed in the inner box 2.

  The upper part 7 of the server is a box shape with the upper part and the front surface opened, and guide grooves 75 and 75 for guiding the protrusions 23 and 23 of the inner box 2 are embedded on the left and right side surfaces, and the needle 8 fixed on the rear surface is buried. And a concave portion 76. Then, the protrusions 23 and 23 of the inner box 2 are fitted into the guide grooves 75 and 75 of the server upper portion 7, and the inner box 2 is pushed toward the needle 8 in the recess 76, so that it is stored in the inner box 2. The formed bag 4 is in a state where the cap 24 is fitted into the recess 76 and pierced into the needle 8, whereby a hole can be formed in the portion.

  The server upper portion 7 is detachable integrally with the main body 3 together with the tank cover 55 of the cold water tank 5 that normally requires maintenance. Specifically, a tank cover 55 is connected to the bottom surface of the server upper part 7. When the server upper part 7 is removed from the main body 3, the tank cover 55 of the cold water tank 5 is removed at the same time, and when the server upper part 7 is attached to the main body 3, No. 5 tank cover 55 is restored.

  As the material of the needle 8, by using a synthetic resin material having good adhesion to the cap 24 of the bag body 4, leakage of the drinking water W from the hole opened in the cap 24 can be reduced as much as possible. . In addition, it is good also as using the thing made from stainless steel from a durable point.

  And the drinking water taken out from the bag body 4 is supplied to the cold water tank 5 through the line 10 connected to the base part of the needle 8. A part of the drinking water supplied to the cold water tank 5 is also supplied to the hot water tank 6 via the communication pipe 102.

  That is, as shown in FIG. 1, a communication pipe 102 is provided that connects the vicinity of the top of the cold water tank 5 and the vicinity of the bottom of the hot water tank 6 in a substantially linear manner. Specifically, the tank cover 55 of the cold water tank 5 is formed in a so-called end plate shape, and the upper end of the communication pipe 102 is inserted near the center at a relatively high position of the tank cover 55, and the water supply line 10 is By inserting and connecting from a peripheral portion at a relatively low position of the tank cover 55, the drinking water W supplied from the water supply line 10 is prevented from flowing out directly from the communication pipe 102. The air A in the cold water tank 5 can easily flow out into the hot water tank 6.

  The cold water tank 5 is provided with a separator (not shown) if necessary, and is provided with a cooling means 50 such as a refrigerator for cooling the drinking water W, and the drinking water W supplied from the bag body 4 is provided. By being cooled by the cooling means 50, the temperature is maintained at a temperature of about 4 to 10 ° C. in the cold water tank 5.

  The hot water tank 6 is provided with a heating means 60 such as a band heater or a sheathed heater for heating the drinking water W, and the drinking water W supplied from the bag body 4 is heated by the heating means 60. Therefore, the temperature is maintained at about 80 to 90 ° C. in the hot water tank 6.

  The drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a not-shown cup or the like by a predetermined amount by opening and closing the water supply ports 11 and 12. It is supposed to be.

  FIG. 3 is an explanatory view showing a state when the inner box 2 is set on the server upper part 7, and FIG. 4 is an explanatory view showing a state when the inner box 2 is set on the server upper part 7. For convenience of explanation, the recess 76 is omitted in FIGS. The operation will be described below. Now, the box cover 22 of the inner box 2 is opened, and the bag body 4 is stored in the box body 21 sideways. Then, the box cover 22 is closed with the cap 24 of the bag body 4 protruding from the back surface of the box body 21. Then, the state shown in FIG. 2 is obtained.

  Next, as shown in FIG. 3, the protrusions 23 and 23 of the inner box 2 are fitted into the guide grooves 75 and 75 of the server upper portion 7, respectively, and the inner box 2 is pushed toward the needle 8. Then, as shown in FIG. 4, the bag body 4 accommodated in the inner box 2 pierces the needle 8 in the cap 24. Thus, when a hole is made in the part, the tension acting in the direction in which the bag body 4 shrinks and the gravity of the drinking water W itself filled in the bag body 4 act simultaneously, whereby the bag body The drinking water W in 4 flows out of the needle 8.

  The outflow drinking water W is supplied to the cold water tank 5 through the line 10. At first, since the air A is contained in the cold water tank 5 and the hot water tank 6, the air A from both the tanks 5 and 6 is extracted.

  FIG. 6 is an explanatory view showing an air bleeding structure between the cold water tank 5 and the hot water tank 6 according to this embodiment. Specifically, as shown in FIG. 6, the water supply port 11 is closed and the water supply port 12 is opened. As a result, when the drinking water W from the bag body 4 is supplied to the cold water tank 5, the air A in the hot water tank 6 is compressed, and the compressed air A enters the hot water tank 6 through the communication pipe 102. The air A discharged and discharged into the hot water tank 6 is discharged from the hot water tank 6 to the outside through the discharge pipe 63 and the water supply port 12. As a result, the cold water tank 5 is filled with the drinking water W, and the drinking water W filled in the cold water tank 5 is discharged into the hot water tank 6 through the communication pipe 102, whereby the hot water tank 6 is filled. The drinking water W is filled and a so-called airless state is established. After that, the water inlet 12 is closed.

  Then, the drinking water W cooled in the cold water tank 5 and the drinking water W warmed in the hot water tank 6 are poured into a glass (not shown) by a predetermined amount by opening and closing the respective water supply ports 11 and 12. It is.

  When the drinking water W in the bag body 4 is used up, it is necessary to replace it with another bag body 4 filled with the drinking water W. At this time, the inner box is opened from the server upper portion 7 of the water server 1. 2 is pulled out and the inner box 2 is removed from the server upper part 7.

  At this time, the cap 24 of the bag body 4 housed in the inner box 2 is pulled out from the needle 8. Next, when the box cover 22 of the inner box 2 is opened, the bag body 4 in the box body 21 can be easily removed. And after removing the bag body 4 from the box main body 21 and setting another bag body 4 there, the said operation | movement is repeated again in order.

  Here, when the maintenance of the cold water tank 5 is performed, the cold water in the cold water tank 5 is used up or the cold water is drained, and then the server upper part 7 is removed from the main body 3 as shown in FIG. Next, the separator in the cold water tank 5 is removed and cleaned, the tank cover 55 and the tank packing are cleaned, and the inside of the cold water tank 5 is cleaned. Next, a separator is attached in the cold water tank 5 and hot water is put in the cold water tank 5 and left for about 5 to 10 minutes. This is to sterilize the cold water tank 5. And after emptying the inside of the cold water tank 5, the server upper part 7 is attached to the main body, thereby restoring the original state.

  As described above, according to the water server 1 of the present embodiment, the needle 8 is installed from the back side to the near side of the server upper portion 7 and has an opening formed near the tip and a passage communicating with the opening. Further, since the cap 24 of the bag 4 stored in the inner box 2 is pushed in, the drinking water W can be supplied to the cold water tank 5 through the needle 8, so that the needle as in the case of FIG. The mistake of piercing the container 4b 'of 8b is reduced. Thereby, it can be made more difficult to leak.

  In the above embodiment, as the liquid supply device, the drinking water W as a liquid is supplied from the bag body 4 accommodated in the inner box 2 to the cold water tank 5 and further supplied from the cold water tank 5 to the hot water tank 6. As described above, the water server 1 in which both the tanks 5 and 6 are arranged vertically is illustrated, but the tanks 5 and 6 may be arranged in parallel. Further, either the cold water tank 5 or the hot water tank 6 may be omitted.

  Further, in the above embodiment, the cap 24 of the bag body 4 housed in the inner box 2 is pressed against the needle 8 fixed to the upper portion 7 of the server, so that a small hole is made in the cap 24. A small hole may be formed in the bag body 4 by pressing the bag body 4 directly against the needle 8 without the above. Further, when the cap 24 is provided, a rod-shaped member having no spire portion may be used instead of the needle 8.

  Moreover, in the said embodiment, although the box cover 22 is engage | inserted in the box main body 21 of the inner box 2, it is good also as opening and closing by a hinge. The box cover 22 does not necessarily need to be transparent, but if it is transparent, the remaining amount of the drinking water W inside the bag body 4 can be easily determined.

  Moreover, in the said embodiment, although the tank cover 55 of the cold water tank 5 is connected and integrated with the bottom face of the server upper part 7, both are good also as a different body. For example, when the server upper part 7 is removed from the main body 3, the tank cover 55 of the cold water tank 5 may be raised automatically or manually backward by a hinge.

  Moreover, although the drinking water W is illustrated as a liquid in the said embodiment, all liquids, such as juice and liquor, may be sufficient as other liquids.

(Eighth Embodiment)
Hereinafter, FIGS. 1 to 6 in the embodiment of the eighth invention are read as FIGS. 90 to 95 in the brief description of the drawings. FIG. 1 is a schematic view showing the entire structure of a needle 1 according to an embodiment of the eighth invention, and FIG. 2 is a partially enlarged view of the needle 1. 2, the upper stage from the axis of the needle 1 (hereinafter referred to as C-axis) shows a state in which the flange portion 51 is furthest away from the tip 11 of the needle 1 and from the C-axis. The lower row shows a state in which the flange portion 51 is closest to the distal end portion 11 of the needle 1.

  As shown in FIGS. 1 and 2, the needle 1 according to the present embodiment has a hole 4 in a container 3 in which a fluid 2 (see FIG. 3, etc.) such as liquid, powder, granules, and gas is enclosed. Is opened, and the fluid 2 is taken out from the container 3, and a front end portion 11, an intermediate portion 12 and a base portion 13 made of synthetic resin or stainless steel are integrally formed. However, after making a part or all of each part 11-13 by another object, they may be assembled suitably.

  The distal end portion 11 has a tapered shape such as a cone, and a plurality of openings 14 are arranged on the peripheral surface thereof. Each opening 14 communicates with a passage 15 formed at the center of the cross section, and the passage 15 further communicates the intermediate portion 12 and the base portion 13.

  The intermediate portion 12 has a cylindrical shape that is slightly smaller in diameter than the maximum diameter of the distal end portion 11, a male screw 16 is formed on the outer periphery thereof, and a large-diameter handle 17 is screwed to the male screw 16. Yes. The outer periphery of the handle 17 is appropriately provided with a shallow groove or knurling so as to be easily operated by a human. Further, a retaining mechanism 5 is provided on the outer periphery of the male screw 16 to prevent the distal end portion 11 from coming out of the container 3 when the distal end portion 11 is inserted into the container 3.

  For example, as shown in FIG. 2, the retaining mechanism 5 is expanded inside the container 3 when the flange portion 51 that comes into contact with the container 3 from the outside and the tip portion 11 of the needle 1 penetrates, for example, the side wall of the container 3. And an expanding portion 52 to be provided. The expanding portion 52 is made of urethane rubber which is an example of a flexible material, and the outer diameter of the expanding portion 52 is a needle in a natural state where no external force is applied so as not to hinder the insertion / removal operation of the needle 1 with respect to the container 3. It has a cylindrical shape that does not exceed the maximum diameter of one tip portion 11. Then, at the support points (support portions) p1 and p2 at both ends in the longitudinal direction, the tip portion 11 and the flange portion 51 are rotatably supported, respectively, and the wall surfaces of the groove portion 54 formed substantially at the center are separated from each other. Thus, it can be bent around the folding point (folded portion) p3. The expanding portion 52 may be equally divided in the circumferential direction.

  That is, as shown in the upper part of FIG. 2, the widened part 52 has a cylindrical shape because the wall surfaces of the groove part 54 are in contact with each other in the unfolded state, and is bent as shown in the lower part of FIG. 2. In the state, the wall surfaces of the groove portions 54 are separated from each other and protrude in the radial direction. The shape of the expanded portion 52 viewed from the direction parallel to the C-axis is substantially a cross shape, a shape close to a snow crystal, or the like when the circumferential direction is, for example, divided into four equal parts or six equal parts.

  Then, by rotating the handle 17 clockwise with respect to the distal end portion 11 of the needle 1, the flange portion 51 is advanced in the direction of arrow B in FIG. Will be in the above-mentioned bent state. As a result, the peripheral portion of the hole 4 of the container 3 is sandwiched between the expanded portion 52 and the flange portion 51. At this time, if the entire outer periphery of the expanded portion 52 is covered with a silicone rubber tube 53 that is an example of a stretchable material, a slight gap when the expanded portion 52 has a substantially cross shape is formed in the silicon rubber tube. Since it is filled with 53, the sealing performance can be further improved. It is assumed that the outer diameter of the silicon rubber tube 53 does not exceed the maximum diameter of the tip portion 11 of the needle 1 in a natural state where no external force is applied.

  On the other hand, by rotating the handle 17 counterclockwise with respect to the distal end portion 11 of the needle 1, the flange portion 51 is retracted in the direction of arrow A in FIG. 52 will be in the state which is not bent. Thereby, the pinching of the peripheral part of the hole 4 of the container 3 between the expanded part 52 and the flange part 51 is completed, and the needle 1 can be easily detached from the container 3.

  The base portion 13 has a shape close to an “L” shape or a “ku” shape, and a cock 6 is provided in the middle thereof. The passage 15 can be opened and closed by rotating the upper lever of the cock 6. Further, for example, a flexible hose 7 is connected to an open end below the base portion 13 by a connection fitting or the like (not shown).

  3-6 is explanatory drawing which shows step 1-4 of the usage method of this needle. Hereinafter, with reference to FIGS. 3-6, each step of the usage method of this needle 1 is demonstrated roughly. Initially, since the handle 17 of the needle 1 is located near the base 13 and the flange 51 is away from the tip 11, the widened portion 52 is not bent as described above. To do. 3 to 6, the illustration of the cock 6 of the needle 1 is omitted, and the shape of the base 13 is slightly different from that of FIG. 1, but the method of using them is the same.

  First, in step 1, the handle 17 is moved as shown by an arrow in FIG. 3, and the tip 11 of the needle 1 is pressed against the side wall of the container 3, so that the hole 4 is formed in the wall surface of the container 3 at the tip 11. Open and insert. In step 2, as shown in FIG. 4, the flange 51 is brought into contact with the side wall of the container 3 (see the upper part of FIG. 2).

  At substantially the same time, the handle 17 is rotated clockwise as indicated by the arrow in FIG. Then, as a result of the handle 17 being guided by the male screw 16 of the intermediate portion 12 and moving the flange portion 51 forward, the distal end portion 11 and the flange portion 51 approach each other, and the widened portion 52 therebetween is automatically opened. That is, the widened portion 52 rotates outward around the support points p1 and p2 and is bent around the folding point p3 so that the wall surfaces of the groove portion 54 formed at the substantially center thereof are separated from each other. Then, as shown in FIG. 6, the peripheral portion of the hole 4 of the container 3 is sandwiched between the bent expanded portion 52 and the flange portion 51. At this time, if the outer periphery of the expanded portion 52 is covered with the silicon rubber tube 53, the gap between the expanded portions 52 is filled with the silicon rubber tube 53, so that the sealing property is ensured (see FIG. 2). See below).

  Subsequently, the fluid 15 in the container 3 flows out into the hose 7 by gravity by opening the passage 15 by rotating the upper lever of the cock 6.

  When the fluid 2 in the container 3 is exhausted, it is replaced. At this time, the handle 17 is rotated counterclockwise. Then, as a result of the handle 17 being guided by the male screw 16 of the intermediate portion 12 and retreating the flange portion 51, the distal end portion 11 and the flange portion 51 are moved away from each other, and the widened portion 52 therebetween automatically returns to the initial state. . That is, the widened portion 52 rotates inwardly around the support points p1 and p2, and reversely rotates around the folding point p3 so that the wall surfaces of the groove portion 54 formed at the approximate center thereof approach each other. Thereby, the expansion part 52 returns to the original unfolded cylindrical shape. In addition, the peripheral portion of the hole 4 of the container 3 is not sandwiched between the expanded portion 52 and the flange portion 51. In this way, the needle 1 can be easily detached from the container 3 by a procedure almost reverse to the above.

  As described above, according to the present embodiment, a retaining mechanism that prevents the tip 11 of the needle 1 from coming out of the container 3 when the needle 1 is inserted into the container 3 in which the fluid 2 is enclosed. 5 is provided, the container 3 having the hole 4 and the needle 1 are brought into close contact with each other regardless of the portion where the hole 4 of the container 3 in which the fluid 2 is sealed is opened. There is no risk of leaking outside.

  In addition, in the said embodiment, although the needle 1 is inserted from the side wall of the container 3, this is because the case where a plastic bag as the container 3 is mounted on a receiving stand and a needle is inserted from the side surface was assumed. . Instead, the plastic bag as the container 3 may be hung and the needle inserted from the side. In other words, the needle 1 can be inserted into the bottom of the container 3 and other parts. The container 3 is not limited to a plastic bag, and may be any material that can be inserted into the needle 1 such as a plastic bottle.

  Moreover, in the said embodiment, by operating the handle | steering-wheel 17, the flange part 51 is made to approach the front-end | tip part 11 with the external thread 16 formed in the intermediate part 12 substantially simultaneously with pushing the needle 1 into the container 3, Although the expanding portion 52 is expanded, other types of mechanisms such as a link mechanism and a gear mechanism may be used instead of the screw mechanism. Moreover, you may make it perform automatically using a spring, a motor, etc. Thereby, even if it is a weak woman, elderly people, etc., a series of operation | movement of this needle 1 can be performed rapidly and reliably.

  Moreover, in the said embodiment, although the expansion part 52 is made from urethane rubber and this is supposed to endure repeated use of the expansion part 52, it replaces with this urethane rubber depending on the kind of the fluid 2, Other types of flexible materials such as silicone rubber may be used. Further, the shape and operation of the expanding portion 52 are not necessarily the same as those in the above-described embodiment, and may be anything as long as they can exhibit substantially the same function.

  Further, in the above embodiment, if the entire outer periphery of the expanded portion 52 is covered with the silicon rubber tube 53, the gap between the expanded portions 52 is filled with the silicon rubber tube 53, so that sealing performance can be ensured. However, a rubber ring may be fitted only on the outer periphery of the support points (support portions) p1 and p2 at both ends of the expanded portion 52. The outer diameter of this rubber ring also does not exceed the maximum diameter of the tip 11 of the needle 1. Further, when the flange portion 51 itself is made of rubber, or when leakage of the fluid 2 can be ignored, the silicon rubber tube 53 may be omitted. Further, depending on the type of the fluid 2, another type of stretchable material may be used instead of the silicon rubber tube 53.

  Moreover, in the said embodiment, although the cock 6 was provided in the base 13, and the channel | path 15 was opened and closed, this cock 6 may be abbreviate | omitted depending on the kind etc. of the fluid 2. FIG. Of course, a valve or the like may be provided instead of the cock 6 of the base portion 13.

  Of course, the above inventions may be applied in appropriate combination.

(Embodiment of the first invention)
1 Water server 2, 2 'Bottle holder 3 Body 4 Bag body (corresponds to the first container)
41 Bottom 5 Cold water tank (corresponds to second container)
50 Cooling means 51 Drainage pipe 52 Venturi pipe 53 Exhaust pipe 54 Orifice (corresponding to throttle part)
55 Reservoir 6 Warm water tank (corresponds to third container)
60 Heating means 62, 62 ', 62 "Vortex diode (corresponding to fluid element)
621 body 622 second nozzle 623 first nozzle 624 guide fin 63 discharge pipe 7 support part 71 bulging part 8, 8 ', 8 "needle 81, 83, 81a needle body 811, 831 tip part 812, 832 intermediate part 813 833 Base part 814, 834 Opening 815, 816, 835 Passage 835a Step part 836 Rib 817, 837a Hose connection part 818 Stopper 837 Pin hole 82, 84, 85, 86, 82a Needle guide 821 Cylindrical part (equivalent to straight guide part) To do.)
822 Flat portion 823, 824, 825 Through groove 841, 851, 861 Cylindrical portion 842, 852, 862 Peripheral surface 843.853, 863 Spiral groove (corresponding to a spiral guide portion)
87 Pin 88 Spacer 89 Spring 819a Stabilization (corresponding to blocking mechanism)
826 button (corresponds to blocking mechanism)
826a compression spring (corresponding to a blocking mechanism)
827 Restriction plate (corresponding to blocking mechanism)
827a, 827b Stepped portion (corresponding to a blocking mechanism)
9 Hose 10 Line 101 Projection 102 Communication Pipe 103 Notch 11, 12 Water Supply Port (Embodiment of Second Invention)
1 Water server 2, 2 'Bottle holder 3 Body 4 Bag body (corresponds to the first container)
5 Cold water tank (corresponds to the second container)
50 Cooling means 51 Drain pipe 52 Venturi pipe 53 Exhaust pipe 54 Orifice (corresponding to throttle means)
55 Reserving part 56 Discharging part 6 Hot water tank 60 Heating means 7 Supporting part 8 Needle (corresponding to a rod-shaped member)
81 Needle body 811 Tip portion 812 Intermediate portion 813 Base portion 814 Opening (corresponding to a communication path)
815 passage (corresponding to a communication passage)
816 cock (corresponding to opening / closing means)
817 Hose connection portion 818 Operation lever (corresponding to operation means)
819 Vertical axis 82 Needle guide 821 Through hole 822 Shallow groove 822a Through groove 823 Housing 824 Pin (corresponds to link mechanism)
825 Link lever (corresponds to link mechanism)
9 Hose (corresponds to the communication path)
10 lines (corresponding to a communication path)
11, 12 Water supply port (Embodiment of the third invention)
1 Water server 2, 2 'Bottle holder 3 Body 4 Bag body (corresponds to the first container)
41 Take-out port 42 Cap 424 Thin portion 5 Cold water tank (corresponding to the second container)
50 Cooling means 51 Drain pipe 6 Hot water tank (corresponding to the second container)
60 Heating means 63 Discharge pipe 7 Support part 71 Clip 72 Sensor 8 Needle 81 Needle body 811 Tip part 812 Intermediate part 813 Base part 814 Opening 815 Pathway (included in the communication path)
816 valve (corresponding to opening / closing means)
817 Hose connection part 82 Needle guide 821 Case 822 Notch part 825 Guide part 827 Shallow groove (corresponds to a lever restricting part)
83 Needle cover (corresponds to the storage part)
831 Main body 832 Hook 833 First lever (corresponding to a hook restricting portion)
834 Second lever (corresponds to the control lever)
9 Hose 10 Line 11, 12 Water supply port (Embodiment of the fourth invention)
DESCRIPTION OF SYMBOLS 1 Water server 2, 2 'Bottle holder 3 Main body 4A Spherical container (equivalent to a container)
4B Modified container (corresponds to a container)
41 Upper part of the main body (corresponds to the upper part)
411 Top part 412 Bellows 42 Lower part of the main body (corresponding to the lower part)
421 Side surface 422 Take-out port 423,425 Rib 424 Bottom 43 Cap 44 Weight (corresponds to pressure means)
5 Cold water tank 51 Drain pipe 6 Hot water tank 63 Drain pipe 7 Support part 71 Through hole 9 Connector 10 Water supply line 101 Convex part 102 Communication pipes 11 and 12 Water supply port A Air W Drinking water (corresponding to liquid)
(Embodiment of the fifth invention)
1 Water server 2, 2 'Bottle holder 3 Server body 4 Deformed container (corresponds to a drinking water container)
41 Main body upper part 42 Main body lower part 43 Outlet 5 Cold water tank 51 Drain pipe 6 Hot water tank 63 Discharge pipe 7 Support part 71 Through hole 9 Connector 10 Water supply line 101 Convex part 102 Communication pipes 11 and 12 Water supply port 200 Operation panel 201 Cold water switch (This corresponds to the first selection switch.)
202 Cold water lamp (corresponding to a display lamp corresponding to the first selection switch)
203 Hot water switch (corresponding to a second selection switch)
204 Hot water lamp (corresponding to a display lamp corresponding to the second selection switch)
205 Cold Water Controller 206 Hot Water Controller 207 Drive Circuit 208 Cold Water Sensor 209 Energizing Circuit 210 Hot Water Sensor A Air W Drinking Water (Embodiment of Sixth Invention)
1, 1a Water server 2, 2 'Bottle holder 3 Server body 4 Bag body (corresponds to the first container)
5 Cold water tank (corresponds to the second container)
51 Drainage pipe (corresponding to the first pipe line and the fourth pipe line)
52 Junction pipe (corresponding to the third and sixth pipes)
6 Warm water tank (corresponds to the third tank)
63 Discharge pipe (corresponds to the second and fifth pipes)
7 Supporting part 9 Connector 10 Water supply line 101 Convex part 102 Communication pipes 11 and 11a Valves (corresponding to a first valve and a fourth valve)
12, 12a valve (corresponding to the second valve and the fifth valve)
13, 13a valve (corresponding to the third and sixth valves)
200 Operation panel 201 Cold water lamp (corresponding to display lamp)
202 Chilled water switch (corresponds to a mode selection switch)
203 Hot water lamp (corresponds to a display lamp)
204 Hot water switch (corresponds to a mode selection switch)
205 Sterilization lamp (corresponds to display lamp)
206 Sterilization switch (corresponds to mode selection switch)
210, 210a Control device A Air W Drinking water (a kind of liquid)
(Embodiment of the seventh invention)
1 Water server 2 Inner box (corresponds to the protective container of the first container)
21 Box body 22 Box cover 23 Projection part 24 Cap 3 Body 4 Bag body (corresponds to the bag body of the first container)
5 Cold water tank (corresponds to the second container)
6 Hot water tank 7 Upper part of the server (corresponding to the support part)
8 Needle (corresponds to a rod-shaped member)
10 Lines 11 and 12 Water supply port (Eighth embodiment)
DESCRIPTION OF SYMBOLS 1 Needle 11 Tip part 12 Intermediate part 13 Base part 14 Opening 15 Passage 16 Male screw 17 Handle 2 Fluid 3 Container 4 Hole 5 Retaining mechanism 51 Flange part 52 Expansion part 53 Silicon rubber tube 54 Groove part 6 Cock 7 Hose

Utility Model Registration No. 3164997 Utility Model Registration No. 3164948 JP 2009-35322 A JP 2011-37479 A Utility Model Registration No. 3164997 JP 2010-42859 A Japanese Utility Model Publication No. 4-85091 JP 2009-251772 A Japanese Patent No. 5069810 Utility Model Registration No. 3164948

Claims (6)

A second container in which the liquid is disposed below the first container, and a third container that is disposed further below the second container, from a first container that can be deformed to shrink as the liquid filled therein decreases. A liquid supply device configured to supply to
A fluid element that communicates with the vicinity of the top in the second container and the third container in a straight line, and that increases the line resistance at the open end in the third container at the time of backflow of air or liquid than during supply. The established communication pipe,
When the liquid is supplied to the second container via the needle by relatively moving the needle into the first container, the third container is moved from the second container via the fluid element of the communication pipe. A discharge pipe for discharging the air or liquid discharged from the vicinity of the top of the third container;
A liquid supply apparatus comprising: a drain pipe for discharging the liquid in the second container from the vicinity of the bottom of the second container.   The fluidic element includes a cylindrical main body, a first nozzle connected in a tangential direction on a peripheral surface of the main body, and a second nozzle connected in a central axis direction on one end surface of the main body. The liquid supply apparatus according to claim 1, wherein:   3. The liquid supply apparatus according to claim 2, wherein at least one end face of the vortex diode main body and the first nozzle are disposed sideways and the second nozzle is directed upward.   The vortex diode includes a guide fin configured to guide the liquid to the first nozzle side during the supply and not to guide the liquid to the second nozzle side during the back flow. Liquid supply device.   The liquid supply apparatus according to claim 4, wherein the guide fin is curved along a flow direction of the liquid to be assumed at the time of supply.   The liquid supply apparatus according to claim 2, wherein a plurality of the first nozzles are arranged so as to be point-symmetric about the second nozzle.