JP2018039554A - Fixed discharge squeeze container - Google Patents

Abstract

A constant-discharge squeeze container that discharges a fixed amount of content liquid for each squeezing operation is provided. The fixed quantity discharge device 20 is composed of a container body 10 and a constant quantity discharge device 20. The quantity discharge device 20 has an inflow port 21 into which the content liquid in the container body 10 flows and a storage portion 22 in which a fixed quantity of content liquid is stored. A chamber 23, a discharge pipe 27 having a discharge port 30 open to the outside of the container body 10, a piston 31 that advances and retreats into the inflow chamber 23 due to a pressure change due to squeeze deformation of the container body 10, and the piston 31 that enters the container body 10 to generate an elastic force. A discharge valve 33 that moves against force to cut off the communication state between the inflow chamber 23 and the container body 10 to send the content liquid in the reservoir 22 into the discharge pipe 27, and the inflow chamber in cooperation with the discharge valve 33. When the inflow chamber 23 and the container body 10 are in communication, the inflow chamber 23 and the discharge pipe 27 are in non-communication, and when the inflow chamber 23 and the container body 10 are in non-communication, the inflow chamber 23 and the discharge pipe 27 are in communication. and a seal valve 39 . [Selection drawing] Fig. 1

Description

  The present invention relates to a quantitative discharge squeeze container in which a container body is squeezed to discharge a content liquid, for example, a liquid cosmetic material, by a substantially constant amount.

  In general, this type of squeeze container is generally configured so that the amount of deformation of the container body during the squeeze operation does not vary in order to discharge a predetermined amount. For example, a contact member that regulates the pushing width of the container body is provided inside the container body, and when the squeeze operation is performed by pressing the pressing operation part of the container body, the pressing operation part is brought into contact with the contact member. There is one configured to discharge a certain amount of contents by regulating the deformation amount of the container body within a certain range (Patent Document 1).

  In addition, for example, the squeeze operation part provided in the container body includes a pressing surface part having a mountain-shaped cross section including a pair of slope parts arranged along two surfaces intersecting at an obtuse angle, and a skirt part and a ridge line part of the pressing surface part After the slope part is deformed until there is no force to push the gap between the hem parts on both sides, the cross-sectional shape is composed of a compression support part having an arcuate cross section joined together through In addition, there is a configuration in which variation is not generated in the amount of squeeze deformation of the container body due to a squeeze operation by being regulated so as not to be inverted to a valley shape (Patent Document 2).

Japanese Patent Laid-Open No. 10-24950 JP 2011-121604 A

  According to these conventional configurations, the structure of the container is devised so that the amount of deformation of the container body during squeeze operation is constant, so that the structure of the container becomes complicated and leads to cost increase. Since it is necessary to provide an operation part (pressing operation part) at a predetermined position of the container body, the design of the container is restricted, and there is a disadvantage that it is not suitable as a container for cosmetics that is particularly excellent in design and requires good appearance. . It is an object of the present invention to provide a quantitative discharge squeeze container that eliminates such inconveniences.

  To achieve this object, a quantitative discharge squeeze container according to claim 1 of the present invention is a squeeze-deformable container body that contains a liquid content and has an opening, and a quantitative discharge device attached to the opening of the container main body. The metering discharge device comprises an inlet that communicates into the container body and allows the contents liquid to flow in, an inflow chamber having a reservoir for storing the contents of the metered quantity, and the contents liquid in the reservoir outside the container body. A discharge pipe having an introduction port at one end for discharge and a discharge pipe having a discharge port at the other end, and a piston that moves forward and backward with respect to the inflow chamber due to a pressure change in the container body according to squeeze deformation of the container body And while being connected to the piston and being elastically biased in the direction of retreating with respect to the inflow chamber, the piston is moved against the elastic biasing force by the entry operation of the piston, Yong A discharge valve that shuts off the communication state with the main body and sends the content liquid in the storage portion toward the introduction port of the discharge pipe, and when the inflow chamber and the container main body are in communication with each other in cooperation with the discharge valve, A seal valve that brings the inflow chamber and the discharge pipe into a non-communication state, while the inflow chamber and the container body are in a non-communication state. is there.

  Similarly, in order to achieve this object, the metering discharge squeeze container according to claim 2 of the present invention is the structure of claim 1, wherein the inflow chamber has a bottomed cylindrical shape with the container opening side end closed, Is provided with an opening in the peripheral surface, the reservoir is provided at the container opening side end, the discharge pipe is disposed at the center of the metering discharge device, and the introduction port is located on the piston side, while the discharge port is Located on the container opening end side, the piston is cylindrical with a bottom, and is connected to the discharge valve on the open end side so as to enter the inflow chamber from the inlet side toward the storage portion side. None, the discharge valve and the seal valve are both formed in an annular shape, the seal valve is fitted and fixed to the inlet end of the discharge pipe, and the discharge valve is in communication between the inlet and the container body Until they are shut off, maintain the bonding state of each other before While the inflow chamber and the discharge pipe are brought into a non-communication state, when the discharge valve shuts off the communication state between the inlet and the container main body and enters the non-communication state, the joint state is released and separated, The content liquid in the storage part is configured to form a flow path from the introduction pipe into the discharge pipe.

  Similarly, in order to achieve this object, the quantitative discharge squeeze container according to claim 3 of the present invention is the structure according to claim 1 or 2, wherein the inflow chamber guides the movement of the piston and the discharge valve. It is characterized by.

  According to the quantitative discharge squeeze container of the first aspect of the present invention, every time the squeeze operation is performed, the fixed amount of liquid in the reservoir of the inflow chamber is transferred to the discharge port of the discharge pipe by the movement of the discharge valve accompanying the operation of the piston. In the standby state, the inflow chamber and the discharge pipe are kept out of communication with each other by the discharge valve and the seal valve, so that the content liquid is discharged from the discharge port even if the container body lies sideways. In addition, since the container body does not require a special structure, there is no restriction on the design, and there is an effect that it can be made to look good.

  Moreover, according to the fixed-quantity discharge squeeze container according to claim 2 of the present invention, in addition to the above-described effect, the fixed-quantity discharge device is arranged by disposing the discharge pipe in the central portion and arranging each component around the discharge pipe. There is an effect that it can be made compact.

  Furthermore, according to the quantitative discharge squeeze container according to claim 3 of the present invention, in addition to the above-described effects, the piston and the discharge valve are smoothly operated, so that the quantitative content liquid can be reliably supplied for each squeeze operation. The effect that it can discharge is produced.

The fragmentary longitudinal cross-section which shows suitable one Embodiment of this invention. The front view which similarly shows a fixed amount discharge apparatus. The fragmentary longitudinal cross-section which shows the time of the inlet_port | entrance shutting-off of the discharge valve in a fixed amount discharge apparatus similarly. The fragmentary longitudinal cross-section which shows the time of discharge operation | movement in a fixed amount discharge apparatus similarly. Similarly, the partial longitudinal cross-sectional view which shows the time of completion | finish of discharge in which the piston in a fixed-quantity discharge apparatus is the lowest position. The perspective view of a seal valve similarly.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1, the fixed discharge squeeze container 1 has an opening 11 made of a squeeze-deformable material, such as a polyethylene resin or a vinyl chloride resin, for containing a content liquid (not shown) such as a liquid cosmetic. It consists of a container body 10 and a metered discharge device 20 attached to the opening 11. A lid 12 having an openable / closable opening / closing part 13 is attached to the opening 11.

  As shown in FIG. 1 and FIG. 2, the fixed amount discharge device 20 is a cylindrical inflow chamber having an inlet 21 that allows the content liquid to flow into the container body 10 and a storage portion 22 that stores the fixed content liquid. 23, the inflow chamber 23 is attached to the opening 11 of the container body 10 via the lid 12 at the base 24. The inflow chamber 23 has an annular guide 25 at the opposite end of the base portion 24, and four guide plates 26 extend from the annular guide 25 to the upper end of the peripheral wall of the storage portion 22 and are opened in the peripheral wall. The inflow port 21 is divided into four.

  As shown in FIG. 1, the discharge pipe 27 disposed in the central portion of the fixed volume discharge device 20 is attached to the base 24 of the inflow chamber 23 and the lid 12 by an integrally provided attachment plate 28. A concave groove 37 is formed in the mounting plate 28. The discharge pipe 27 has an introduction port 29 at one end and a discharge port 30 at the other end in order to discharge the content liquid in the storage unit 22 to the outside of the container body 10. Note that the base 24 side end of the inflow chamber 23 is closed by the mounting plate 28.

  A piston 31 is provided so as to be able to advance and retreat with respect to the inflow chamber 23 by being guided by the annular guide 25 of the inflow chamber 23 so as to cover the introduction port 29 of the discharge pipe 27. The piston 31 has a cylindrical shape with a bottom and enters the inflow chamber 23 by the pressure in the container body 10 corresponding to the squeeze deformation of the container body 10 acting on the bottom thereof, while the action of the pressure is released. Then, the coil spring 38, which will be described later, retreats with respect to the inflow chamber 23 and returns to the original position (standby state position shown in FIG. 1). The open end portion of the piston 31 is provided with an enlarged diameter portion 32 having an enlarged outer diameter only.

  The enlarged diameter portion 32 of the piston 31 includes a discharge valve 33 including a fitting annular portion 34 and a double annular portion 36 having a holding groove 35 between the annular inner wall 36a and the annular outer wall 36b. In 34, it is connected by close fitting. The discharge valve 33 moves together with the piston 31 with the outer peripheral surface of the annular outer wall 36 b being guided by the guide plate 26 of the inflow chamber 23 and the inner peripheral surface of the storage portion 22. Each end of a coil spring 38 is inserted and held in the holding groove 35 and the concave groove 37, and the discharge valve 33 is urged in the direction of the annular guide 25 by the elastic force of the coil spring 38. For this reason, the piston 31 is also elastically biased in the direction of retreating with respect to the inflow chamber 23.

  Then, as the pressure in the container body 10 increases, the discharge valve 33 moves in the same direction along with the piston 31 against the elastic biasing force of the coil spring 38 due to the piston 31 entering the inflow chamber 23. It moves, and it is comprised so that the communication state of the inflow chamber 23 and the container main body 10 via the inflow port 21 may be interrupted | blocked.

  An annular seal valve 39 is fitted and fixed to the inlet 29 end of the discharge pipe 27. The outer peripheral surface of the seal valve 39 is joined to the inner peripheral surface of the annular inner wall 36a in the double annular portion 36 of the discharge valve 33 in the standby state shown in FIG. A first enlarged diameter portion 40 and a second enlarged diameter portion 41 are configured. As can be understood from FIG. 6, the second enlarged-diameter portion 41 is formed to have an outer diameter larger than that of the first enlarged-diameter portion 40, and a guide communicating with the introduction port 29 is formed on the upper surface of the second enlarged-diameter portion 41. A groove 42 is provided. Further, the outer peripheral surface of the seal valve 39 opposite to the respective enlarged diameter portions 40 and 41 is an inclined surface 43 that is gradually reduced in diameter toward the tip. The inclined surface 43 serves as a guide when the seal valve 39 and the discharge valve 33 are started to contact / separate, so that the contact / separation start operation can be performed smoothly.

  The axial length of the joint portion in the standby state of the seal valve 39 and the discharge valve 33 is such that the discharge valve 33 moves in the direction of the storage portion 22 to close the inlet 21, and the inflow chamber 23 and the container body Until the communication state with 10 is interrupted, the inflow chamber 23 and the discharge pipe 27 are brought into a non-communication state by maintaining the mutual connection state, while the discharge valve 33 is connected to the inflow chamber 23 and the container body 10. When the communication state is cut off to the non-communication state, the joined state is released and separated, so that a flow path in which the content liquid in the storage portion 22 flows into the discharge pipe 27 from the introduction port 29 is formed. Is set.

  Although it is not clear in the figure, the joint portion of the discharge valve 33 and the seal valve 39 can pass air near the first enlarged diameter portion 40, but it is difficult for the content liquid to pass, and the other portion can also pass the content liquid. , Voids are set. Specifically, the gap is preferably 0.01 to 0.05 mm in a portion that makes it difficult for the content liquid near the first enlarged diameter portion 40 to pass, and 0.1 to 0.2 mm in other portions. It is.

  Subsequently, the operation of the present embodiment configured as described above will be described. When the container body 10 in the standby state of FIG. 1 is held upside down so that the discharge port 30 faces downward, and the container body 10 is pressed and deformed by squeeze, the pressure of the content liquid is applied to the piston 31, The piston 31 descends with the discharge valve 33 against the elastic force of the coil spring 38 and enters the inflow chamber 23. As shown in FIG. 3, even when the piston 31 is lowered, the reservoir 22 and the inlet 29 of the discharge pipe 27 are not in communication with each other while the discharge valve 33 and the seal valve 39 are in the joined state. The inflow port 21 and the container body 10 maintain a communication state.

  When the piston 31 is further lowered, the discharge valve 33 enters the storage portion 22, the inlet 21 is closed, and the inflow chamber 23 and the container main body 10 are disconnected from each other, the discharge valve 33 is released from the seal valve 39. The joined state is released by separation (see FIG. 4), and the reservoir 22 and the introduction port 29 of the discharge pipe 27 which are in a non-communication state are connected to the outer peripheral surface of the seal valve 39 and the inner peripheral surface of the piston 31. It will be in a communication state via the flow path formed in the space between.

  In addition, when the discharge valve 33 enters the storage portion 22, the pressure in the storage portion 22 increases, and the content liquid in the storage portion 22 is discharged from the annular inner wall 36 a of the double annular portion 36 of the discharge valve 33. It starts to move from between the pipe 27 to the inlet 29 side of the discharge pipe 27 through the seal valve 39 and the inner peripheral surface of the piston 31 (see FIG. 4).

  When the pressure in the reservoir 22 is further increased by the entry of the discharge valve 33 into the reservoir 22 as the piston 31 further descends, the liquid content is guided by the guide groove 42 of the seal valve 31 and the discharge pipe 27 It flows into the introduction port 29 and begins to be discharged from the discharge port 30 (see FIG. 4). When the piston 31 further descends and the lower end of the double annular portion 36 of the discharge valve 33 comes into contact with the mounting plate 28, the movement of the discharge valve 33 is blocked and reaches the lowest position (see FIG. 5). In this state, the pressure to the content liquid in the storage unit 22 is maximized, and thereafter the pressure does not increase, so that the liquid discharge operation from the discharge port 30 ends. In this discharge operation, a fixed amount of content liquid stored in the storage unit 22 in the standby state is substantially discharged.

  Here, when the squeeze deformation force applied to the container main body 10 is released, the discharge valve 33 and the piston 31 move upward by the elastic force of the spring 38 (see FIGS. 5 and 4). As a result, the volume of the storage unit 22 increases, a negative pressure is generated with respect to the outside of the container body 10, air flows in from the discharge port 30, and the content liquid remaining in the piston 31 is stored together with the air. It is drawn into the portion 22 (see FIG. 4).

  At this time, the discharge valve 33 closes the inlet 21 and maintains the non-communicating state between the container body 10 and the inflow chamber 23, so that the content liquid in the container body 1 does not flow into the inflow chamber 23. However, the negative pressure state in the storage unit 22 is maintained, and the operation of drawing the content liquid remaining in the piston 31 into the storage unit 22 by the inflow of air is reliably performed.

  When the piston 31 rises and the discharge valve 33 and the seal valve 39 are joined (see FIG. 3), the reservoir 22 and the introduction port 29 of the discharge pipe 27 are in a non-communication state, while being connected via the inflow port 21. Thus, the inflow chamber 23 and the inside of the container body 10 are in communication with each other, and the operation of drawing the content liquid remaining in the piston 31 into the storage portion 22 is stopped. Then, the piston 31 and the discharge valve 33 are returned to the standby state by the elastic force of the spring 38 (see FIGS. 1 and 2) and are prepared for the next operation.

  In addition, this invention is not limited to embodiment mentioned above, For example, a protrusion is formed in the front-end | tip inner peripheral surface of the fitting annular part 34 of the discharge valve 33, and diameter expansion of this protrusion and piston 31 is carried out. The discharge valve 33 and the piston 31 may be fitted and connected with the end face of the portion 32 in the engaged state. Further, the guide groove 42 of the seal valve 39 may not be provided, and an inclined surface toward the introduction port 29 may be formed instead of the guide groove 42.

DESCRIPTION OF SYMBOLS 1 Fixed discharge squeeze container 10 Container main body 11 Opening part 12 Cover body 20 Fixed discharge apparatus 21 Inflow port 22 Storage part 23 Inflow chamber 24 Base 25 Ring guide 26 Guide plate 27 Discharge port pipe 28 Mounting plate 29 Inlet port 30 Discharge port 31 Piston 32 Expanded portion 33 Discharge valve 34 Fitting annular portion 35 Holding groove 36 Double annular portion 36a Annular inner wall 36b Annular outer wall 37 Concave groove 38 Coil spring 39 Seal valve 40 First expanded portion 41 Second expanded portion 42 Guide Groove 43 inclined surface

Claims (3)

Consists of a container body that has a squeeze-deformable opening that contains the content liquid, and a metering discharge device attached to the opening of the container body,
The quantitative dispensing device is:
An inflow chamber having an inflow port through which the content liquid is introduced in communication with the inside of the container main body and a storage unit for storing a fixed amount of the content liquid;
A discharge pipe having an introduction port at one end and a discharge port opened outside the container body at the other end in order to discharge the content liquid in the reservoir to the outside of the container body;
A piston that moves forward and backward with respect to the inflow chamber by a pressure change in the container body according to squeeze deformation of the container body;
The piston is connected to the piston and is elastically biased in the direction of retreating with respect to the inflow chamber. On the other hand, the inflow chamber and the container main body are moved against the elastic biasing force by the entry operation of the piston. A discharge valve that cuts off the communication state with the storage liquid and feeds the content liquid in the reservoir toward the inlet of the discharge pipe;
In cooperation with the discharge valve, the inflow chamber and the discharge pipe are disconnected from each other when the inflow chamber and the container main body are in communication with each other, while the inflow chamber and the container main body are in communication with each other when the inflow chamber and the container main body are not in communication. A quantitative discharge squeeze container, comprising: a seal valve that communicates the room with the discharge pipe. The inflow chamber is a bottomed cylindrical shape closed at the container opening side end, the inflow port is provided by opening the peripheral surface, and the reservoir is provided at the container opening side end,
The discharge pipe is arranged at the center of the fixed volume discharge device, and the introduction port is located on the piston side, while the discharge port is located on the container opening end side,
The piston is cylindrical with a bottom, and is connected to the discharge valve on the open end side so as to enter the inflow chamber from the inlet side toward the storage portion side,
The discharge valve and the seal valve are both formed in an annular shape, the seal valve is fitted and fixed to the inlet end of the discharge pipe, and the discharge valve blocks the communication state between the inlet and the container body. Until that time, the mutual connection state is maintained and the inflow chamber and the discharge pipe are in a non-communication state, while the discharge valve shuts off the communication state between the inflow port and the container main body to be in a non-communication state. The fixed amount according to claim 1, which is configured so as to form a flow path in which the content liquid in the storage part flows into the discharge pipe from the introduction port by releasing the bonded state from each other. Discharge squeeze container. The quantitative discharge squeeze container according to claim 1, wherein the inflow chamber guides movement of the piston and the discharge valve.

Images