JP2000309968A - Toilet stool cleaning and water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet stool cleaning and water supply device whose valve structure stably works and by which antifreeze property is realized in a cold time, and further which is relatively low in cost. SOLUTION: This toilet stool cleaning and water supply device 3 is provided with a opening/closing valve 4R, 4J and a cum device 8. The valves 4R, 4J have a valve housing 41 in which a water inlet port connected to a water supply pipe to supply water and a water outlet port which can supply water to a passage of a flush toilet 1 are formed, and a valve structure protruded from the valve housing 41 and transferably installed in the valve housing 41 to open or close the water inlet port and the water outlet port. The cum device 8 is provided with cums 85, 86 mechanically opening or closing the valve mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet flush water supply apparatus.

[0002]

2. Description of the Related Art In a general flush toilet, water supplied from a water supply pipe such as a water pipe is temporarily stored in a toilet wash tank such as a low tank, and the toilet bowl is washed with the water stored in the toilet wash tank. Do. However, such a common flush toilet requires an installation space for a toilet flush tank.
For this reason, in recent years, from the viewpoint of effective use of space, etc., an on-off valve is provided between the water supply pipe and the flush toilet, and water supplied from the water supply pipe can be directly supplied to the flush toilet by opening the on-off valve Tankless toilets are being developed (Japanese Unexamined Patent Publication No.
No. 90723).

A conventional toilet flushing / water supply device which can be employed in such a tankless toilet has an on-off valve having a water inlet port and a water outlet port in a valve housing and a valve mechanism for opening and closing the water inlet port and the water outlet port. . The water inlet port is connected to a water supply pipe so that water can be taken into the valve housing, and the water outlet port is connected to a flush toilet so that water can be discharged from the valve housing to the flush toilet.

Further, the valve mechanism of the on-off valve has a diaphragm between the water inlet port and the water outlet port, and the diaphragm can be bent by operating the solenoid valve. For this reason, in this toilet flush water supply device,
The diaphragm is flexed by the operation of the solenoid valve, so that the water inlet port and the water outlet port can be opened and closed.

[0005]

However, in the above-mentioned conventional toilet flushing / water supply apparatus, an electromagnetic valve is employed as a valve mechanism for operating a flexible diaphragm, and the diaphragm is deflected by the operation of the electromagnetic valve. As a result, it has the following inconveniences.

That is, the solenoid valve generates a magnetic attraction force by excitation by power supply to the solenoid, and magnetically attracts and opens a movable body formed of a magnetically permeable material contained in the solenoid valve. For this reason, such a solenoid valve has a problem that a relatively large residual magnetism remains in the movable body even if the solenoid is demagnetized. For this reason, if the solenoid valve of the toilet flushing / water supply device is not provided with a measure to avoid the influence of residual magnetism, the operation of the valve mechanism may be unstable depending on the primary water pressure acting on the water inlet port. .

[0007] Further, the solenoid valve is premised on that the degree of opening is fully opened or fully closed, and the degree of opening cannot be maintained at an intermediate stage in the middle. For this reason, in such a toilet flush water supply device, in order to prevent freezing of water in the water supply system in cold weather, etc., the solenoid valve achieves such a usage pattern even when trying to flow water little by little continuously. Can not.

Further, the solenoid valve is generally more expensive than a motor or the like, which leads to an increase in the cost of the toilet flushing / water supply device. The present invention has been made in view of the above-described circumstances, and can contribute to stabilization of operation of a valve mechanism, can prevent freezing of water in cold weather and the like, and is relatively low-cost toilet flush water supply. Providing the device is an issue to be solved.

[0009]

In the toilet flushing / water supply apparatus of the present invention, an inlet port through which water is supplied in communication with a water supply pipe and an outlet port through which the water can be supplied to a flow path of the flush toilet are formed. A valve housing, a valve mechanism protruding from the valve housing and movably provided in the valve housing, and having a valve mechanism for opening and closing the water inlet port and the water outlet port,
A cam device having a cam for mechanically opening and closing the valve mechanism.

[0010] The cam device has a rotating body capable of mechanically engaging a portion on the valve mechanism side that is a follower, and refers to a mechanism that reciprocates the follower as the rotating body rotates. Here, the rotating body may be a rotating shaft or a gear, and may be a rotating body. The cam device may be a flat cam in which the locus of the contact point between the cam and the follower is a flat curve,
A three-dimensional cam in which the locus of the contact point is a three-dimensional curve may be used.

[0011] Gravity may be used to bring the follower into contact with the cam, or an urging means such as a spring may be employed to ensure the contact between the cam and the follower. The direction of rotation of the rotating body can be selected in consideration of circumstances such as the installation space and the like, regardless of the longitudinal direction of the toilet bowl, the lateral direction, or the direction inclined with respect to these. A known cam mechanism can be employed as the cam device.

In the toilet flushing / water supply device of the present invention, when the cam device operates, the valve mechanism mechanically engaged with the cam of the cam device opens and closes to adjust the opening degree of the communication between the inlet port and the outlet port. You. Further, in the toilet flush water supply device of the present invention, the valve opening speed and the valve closing speed of the valve mechanism can be arbitrarily set by selecting the profile of the cam of the cam device. Can be suppressed, and noise, water hammer phenomenon and the like can be suppressed. It is also possible to stop the driving of the cam device halfway when opening or closing the valve, in this case, not only fully open or fully closed,
The valve opening and closing amounts of the valve mechanism can be maintained continuously in the middle stage, so that water can be continued to flow into the toilet little by little, preventing freezing of water in cold weather etc. This is advantageous.

Therefore, the toilet flushing / water supply apparatus of the present invention can contribute to stabilization of the operation of the valve mechanism, can prevent freezing of water in cold weather or the like, and is relatively inexpensive. In the toilet flush water supply device of the present invention, the valve mechanism preferably has a shaft pressed toward the valve housing by the cam of the cam device. In this case, a mechanism that opens the valve mechanism by pressing the shaft toward the valve housing can be employed. The method of opening the valve mechanism by pressing is advantageous for simplification of the mechanism, and can reduce the manufacturing cost.

Although the cam of the cam device can be driven manually, a system driven by a motor is preferable.
In this case, the toilet can be washed with a simple switch operation. Further, the motor is generally inexpensive as compared with a solenoid valve or the like, and the cost of the toilet flushing / water supply device can be reduced. Preferably, the on-off valve, motor and cam device are mounted on a single common base plate. If the on-off valve, the motor, and the cam device are collectively mounted on a single base plate in this manner, space can be saved, the number of parts can be reduced, and the assemblability can be improved. In addition,
The base plate is preferably installed at the back of the toilet bowl.

Preferably, the motor or cam device has a manual shaft for manually driving the cam of the cam device. In this case, the motor for driving the cam device does not need to be used, so that the toilet can be washed by opening and closing the valve mechanism even at the time of a power failure where the motor is not driven.
Preferably, the manual shaft is removable. In such a case, usually, the manual shaft may be removed so as not to be in the way, and the manual shaft may be attached when manual operation is required. Note that the manual shaft may be foldable.

According to the present invention, the toilet flush water supply apparatus can be used for a flush toilet without a toilet flush tank. In this case, it is possible to reliably supply water to a tankless toilet having no toilet washing tank even on a high floor or a high basement of a building.

[0017]

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS.
First, the flush toilet 1 equipped with the toilet flush water supply device of the present embodiment will be described. As shown in FIG. 1, the flush toilet 1 is of a tankless type having no toilet flush tank, and has a toilet bowl 11 having a bowl portion 10 for receiving excrement.
And the rim water channel 1 wrapped around the upper periphery of the bowl portion 10
2, a trap portion 14 communicating with the bottom of the bowl portion 10 for flowing excrement, and a jet nozzle 15 attached to an entrance of the trap portion 14.

The flush toilet 1 is provided with a jet conduit 18 for supplying water to the jet nozzle 15 and a rim conduit 19 for supplying water to the rim water passage 12. Rim conduit 19
As shown in FIG. 3, an opening 19a is opened to the front end side to discharge water clockwise, and an opening 19b opened to the side surface to discharge water counterclockwise. As shown in FIGS. 2 and 3, on one side in the width direction of the rear part of the flush toilet 1, a branching device 2 for separating water for toilet flushing and water for other uses is provided. . The branching device 2 is connected to a water supply pipe such as a water pipe via a water stopcock (not shown) by a flexible hose 21. The branch device 2 and the toilet flush water supply device (hereinafter, referred to as a water supply device) 3 of the present embodiment are connected to a water supply conduit 2.
The water branched by the branch device 2 is supplied to the water supply device 3 through the water supply conduit 23. FIG.
4 to 4, the toilet lid and the toilet seat are omitted.

Next, the water supply device 3 of the present embodiment will be further described. As shown in FIG. 2, the water supply device 3 is incorporated in the base plate 31 held at the rear of the flush toilet 1 at a position opposite to the branching device 2, and is covered and concealed by the cover 32. . The water supply device 3 includes a rim on-off valve 4R for supplying water to the rim water passage 12 by a rim conduit 19a, a jet on-off valve 4J for supplying water to the jet nozzle 15 by a jet conduit 18, and an on-off valve 4R, 4J. And a cam device 8 functioning as a common drive source for opening and closing. As shown in FIGS.
The on-off valves 4R, 4J are arranged vertically adjacent to each other.

The internal structure of the jet on-off valve 4J is shown in FIG.
And in FIG. 5 and 6, the left side in the figure is the lower side, and the right side in the figure is the upper side. The on-off valve 4J for a jet includes a valve housing 41 having a water inlet port 42 for taking in water and a water outlet port 43 for discharging water,
And a valve mechanism 45 provided in the valve housing 41.
A piston chamber 44 communicating with the water inlet port 42 and the water outlet port 43 is formed inside the valve housing 41. The valve mechanism 45 includes a piston 46 slidably provided in the piston chamber 44 and a shaft 47 coaxially fixed to one end surface (upper end surface) of the piston 46 so as to project upward from the upper end of the valve housing 41. It is composed of In the valve housing 41, the water inlet port 42 is
The water outlet port 43 is bent and opened from one axial end surface of the piston 46 to the side surface of the valve housing 41. An O-ring 48 is held in a ring groove on the outer periphery of the piston 46.
Thereby, the boundary area between the outer peripheral portion of the piston 46 and the inner wall surface of the valve housing 41 is sealed. The boundary area between the shaft 47 and the valve housing 41 is sealed by an O-ring 49.

In the piston chamber 44, a pressure canceling chamber 50 is formed by the valve housing 41 and the other end surface of the piston 46.
Are formed. The pressure canceling chamber 50 communicates with the water outlet port 43 via a plurality of communication passages 51 formed in the piston 46. Each communication passage 51 communicates the one end surface 46a side and the other end surface 46b side of the piston 46 in the axial direction.
In the pressure canceling chamber 50, a pressing coil spring 52 as an urging means is coaxially arranged. The pressing coil spring 52 is interposed between the valve housing 41 and the other end surface 46b of the piston 46, and constantly urges the piston 46 in the arrow Y1 direction, that is, upward, so as to close the communication between the water inlet port 42 and the water outlet port 43. Has become.

As described above, the tip of the shaft 47 projects from the valve housing 41 in the direction of arrow Y1, ie, upward.
The cam device 8 can be pressed in the direction of the arrow Y2a, that is, downward. The cam 47 causes the shaft 47 to move in the direction of the arrow Y.
When pressed in the direction 2a, the piston 46 slides in the same direction in conjunction with it, and the piston 46 separates from the seat surface 41x,
The water inlet port 42 and the water outlet port 43 are communicated.

The internal structure of the on-off valve 4R for the rim is also substantially the same as the internal structure of the on-off valve 4J for the jet.
Description is omitted. The water inlet port 42 of the jet on-off valve 4J and the water inlet port 42 of the rim on-off valve 4R are connected via a ring-shaped communication passage 54 formed between the valve housing 41 and the outer peripheral surface of the piston 46. Communicating with each other.

As shown in FIG. 7 and FIG.
Is provided with a spherical portion 47x for ensuring smooth sliding with the cam. On-off valve 4J for jet
The water inlet port 42 has a flange 42a
Is formed, and one end of the water supply conduit 23 is connected to the flange 42a. In the water supply device 3, the connecting member 6J is provided on the jet on-off valve 4J so as to protrude in the direction of arrow F1, that is, toward the front of the toilet bowl 11, and the upper end of the connecting member 6J is open to the atmosphere. The vacuum breaker 61J is integrally provided. As shown in FIG. 7, the water outlet port 43 of the on-off valve 4J for jet is
Flood port 6c of connecting member 6J and vacuum breaker 6
It is in communication with the 1J air hole. A flange 6e is formed at the water outlet port 6c of the connecting member 6J so as to protrude downward, and the flange 6e is connected to the jet nozzle 15 by a jet conduit 18.

On the other hand, as shown in FIG. 8, the on-off valve 4R for the rim is also integrally provided with a connecting member 6R, and the upper end of the connecting member 6R is integrally connected with a vacuum breaker 61R which is open to the atmosphere. Have been. The water outlet port 43 of the rim on-off valve 4R is connected to the water outlet port 6c of the connecting member 6R and the air hole of the vacuum breaker 61R.
The water outlet port 6c of the connecting member 6R of the rim on-off valve 4R has a flange 6e projecting downward, and the flange 6e is connected to the rim water passage 12 by a rim conduit 19.

As shown in FIG. 2, a cam device 8, which is a main element of the water supply device 3, is disposed above the on-off valves 4R, 4J, and has two mounting members projecting forward, that is, toward the front of the toilet bowl 11. It is held by a bracket 82 having a piece 81. That is,
The cam device 8 includes a rotating shaft 83 as a rotating body rotatably held in a horizontal state on the mounting piece 81, and a first cam 85 provided on the rotating shaft 83 so as to protrude in a direction perpendicular to the axis thereof.
And a second cam 86. As shown in FIGS. 2 and 3, the rotating shaft 83 extends along the width direction of the toilet bowl 11.

When the rotating shaft 83 rotates, the first cam 85 and the second cam 86 rotate along the height direction of the toilet bowl 11. As a result, the outer cam surface of the first cam 85 abuts on the shaft 47 (corresponding to a follower) of the rim on-off valve 4R to move it downward, and the outer cam surface of the second cam 86 becomes Shaft 47 of on-off valve 4J for jet
(Corresponding to a follower) and move it downward.

As shown in FIGS. 2 to 4, the water supply device 3 includes:
A driving device 7 for rotating and driving the cam device 8 is provided. The driving device 7 is fixed to one of the mounting pieces 81 of the bracket 82 and has a built-in motor 71 and a reduction gear for transmitting the rotating force of the motor 71 to the rotating shaft 83. The shaft 83 can be driven to rotate. Further, the driving device 7 is provided with a manual shaft 74 for manually rotating the rotating shaft 83 of the cam device 8 so as to be located on the side of the flush toilet 1. The manual shaft 74 has an operation handle 75, and the operation handle 75
Also, it is detachable or foldable with respect to the water supply device 3. If the manual shaft 74 is detached or folded when not in use, space can be saved.

As shown in FIG. 2, the above-described on-off valve 4R,
The 4J, the motor 71 and the cam device 8 are attached to the rear of the flush toilet 1 by a single common base plate 31. In the tankless flush toilet 1 configured as described above, a water supply pipe, a water stopcock, a flexible hose 2
1. Water is supplied to the water supply device 3 via the branch device 2 and the water supply conduit 23. In the water supply device 3, both the on-off valves 4J and 4R are closed unless a user operates the switch to clean the toilet bowl 11. In other words, referring to FIGS. 5 and 6, the piston 46 is moved in one axial direction, that is, in the direction of the arrow Y1 by the urging force of the pressing coil spring 52. For this reason, as shown in FIG. 5, the piston 46 sits on the seat surface 41x of the valve housing 41, and the piston 46
Has closed the water inlet port 42 and one end surface 46 a of the piston 46 has closed the water outlet port 43. Therefore, the communication between the water inlet port 42 and the water outlet port 43 is closed, and water is not supplied to the tankless flush toilet 1.

When the toilet bowl 11 is washed,
Based on the user's operation of the switch, the motor 71 of the driving device 7 is driven by the signal of the controller, and the rotating shaft 83 is driven to rotate. As a result, the cam surface of the first cam 85 presses the shaft 47 of the rim on-off valve 4R downward,
The rim on-off valve 4R is opened. 5 and 6, the pressing coil spring 52 elastically contracts and the piston 4
Reference numeral 6 moves in the other axial direction, that is, in the direction of arrow Y2.
As a result, as shown in FIG. 6, the piston 46 separates from the seat surface 41x of the valve housing 41, and opens the communication between the water inlet port 42 and the water outlet port 43. As a result, the water supply device 3 supplies water to the rim water passage 12 via the rim conduit 19 to clean the inner wall surface of the bowl portion 10.

As the cam device 8 is driven, the cam surface of the first cam 85 does not press the shaft 47 of the rim on-off valve 4R downward, and the rim on-off valve 4R closes. Then, the cam surface of the second cam 86 presses the shaft 47 of the on-off valve 4J for jet downward, and the on-off valve 4 for jet 4
Open J. As a result, the water supply device 3 supplies water to the jet nozzle 15 via the jet conduit 18 and forcibly causes the trap portion 14 to have a siphon action.

Next, with the driving of the cam device 8, the cam surface of the second cam 86 is moved to the shaft 4 of the on-off valve 4J for jet.
7 is no longer pressed downward, and the on-off valve 4J for jet
Closes. Thereafter, the cam surface of the first cam 85 presses the shaft 47 of the rim on-off valve 4R downward again to open the rim on-off valve 4R again. As a result, the water supply device 3 supplies water to the rim water passage 12 via the rim conduit 19 and seals the bowl portion 10.

5 and 6, the communication between the water inlet port 42 and the water outlet port 43 is opened and closed by the piston 46.
The water inside will cause pressure on the other side. At this time, the non-flexible piston 46 does not bend toward the valve opening side due to the pressure on the other side. However, simply providing a space for sliding the piston 46 impairs the axial sliding property of the piston 46 due to the pressure on the other side. In this regard, in the open / close valves 4J and 4R, the pressure canceling chamber 50 is formed on the other side of the piston 46, and the one side of the piston 46 and the pressure canceling chamber 50 are communicated by the plurality of communication passages 51. The water existing on one side of the piston 46 moves to the pressure canceling chamber 50 via the communication passage 51, and the pressure of the water in the pressure canceling chamber 50 and the pressure of the water on one side of the piston 46 are balanced. As a result, the pressure difference between the two is eliminated or reduced. This allows the piston 46
Is secured in the axial direction.

Further, since the communication passages 51 are formed in the piston 46, each communication passage 51 can be easily penetrated in the axial direction. Since the communication passage 51 extends through the piston 46 in the axial direction, water moving in the communication passage 51 does not receive resistance when the piston 46 slides, and the slidability of the piston 46 is improved. . Further, the water inlet port 42 of the valve housing 41 is opened on the peripheral surface side of the piston 46, and the water outlet port 43 of the valve housing 41 is opened on one axial end surface side of the piston 46. No pressure is applied to the other side by the water in the port 42, and even if the pressure in the water in the water inlet port 42 is excessively high or low due to the environment in which the on-off valve is used, the piston 46 slides. The mobility does not change.

In this embodiment, the cam device 8 is used to open the piston 46 as the valve mechanism 45. The first cam 85 of the cam device 8 mechanically engages with the shaft 47 of the on-off valve 4R for rim, and the second cam 86 mechanically engages with the shaft 47 of the on-off valve 4J for jet. Things. For this reason, the first and second cams 85,
The driving force by 86 is mechanically directly transmitted to the shaft 47 to ensure operational stability.

In this embodiment, the on-off valves 4J, 4R
Since the cam device 8 for opening and closing the water supply device is employed, it is not necessary to employ an expensive solenoid valve having a solenoid as in the prior art, and the manufacturing cost of the water supply device 3 can be reduced. In particular, in the tankless flush toilet 1 shown in the embodiment, since the pair of on-off valves 4J and 4R are used for supplying water to the jet nozzle 15 and the rim water passage 12, this effect is large. Further, the on-off valves 4J, 4R can be opened and closed by the first and second cams 85, 86 fixed to one rotating shaft 83, and this effect is further enhanced.

Further, since the opening and closing speeds of the valve mechanism 45 can be arbitrarily set by selecting the profile of the first and second cams 85 and 86, rapid opening and closing can be suppressed. Noise, water hammer phenomenon and the like can be suppressed. Further, when the cam 71 is driven by the motor 71 at the time of opening or closing the valve, the driving of the cam device 8 is performed by a switch operation when the cam device 8 is driven by the manual shaft 74, It is also possible to stop with. In the latter case, the valve opening amount and the valve closing amount of the valve mechanism 45 can be maintained at an intermediate stage. Therefore, it is possible to keep the water flowing into the toilet 1 little by little, which is advantageous for preventing freezing of water in cold weather.

Further, in the open / close valves 4R and 4J, the pressing coil spring 52 urges the piston 46 to one side in the axial direction,
Since the shaft 47 protrudes to one side, a relatively inexpensive pressing coil spring 52 is employed.
The urging force of 2 allows the piston 46 to close the communication between the water inlet port 42 and the water outlet port 43, while opening the communication between the water inlet port 42 and the water outlet port 43, the shaft 46 resists the urging force of the pressing coil spring 52. A cam device 8 for pushing 47 to the other side is employed. Since the cam device 8 has a structure in which the shaft 47 is pushed in order to open the communication between the water inlet port 42 and the water outlet port 43, the structure is relatively simple, and the manufacturing cost can be reduced.

Therefore, this toilet flushing / water supply device can contribute to stabilization of the operation of the valve mechanism 45, can prevent freezing of water in cold weather or the like, and is relatively inexpensive. (Embodiment 2) Embodiment 2 is shown in FIGS. The second embodiment has basically the same configuration as the first embodiment.
It has the same effect. In the present embodiment, common portions are denoted by common symbols. Hereinafter, a description will be given focusing on a portion different from the first embodiment.

In this embodiment, the on-off valve 4J for jet is used.
The connecting member 6J of the rim and the connecting member 6R of the rim on-off valve 4R are separated from each other by a predetermined distance, so that the side of the valve housing 41 of the jet on-off valve 4J and the side of the rim on-off valve 4R. That is, it protrudes toward the side of the toilet bowl 11. That is, as shown in FIG.
J, 6R, the first and second cams 85, 86 and the on-off valve 4J,
4R is located. This takes into account the installation space, piping conditions, etc.

(Embodiment 3) Embodiment 3 is shown in FIGS. The third embodiment has basically the same configuration as the first embodiment, and has the same operation and effect. In the present embodiment, common portions are denoted by common symbols. Hereinafter, a description will be given focusing on a portion different from the first embodiment. In the first embodiment, the connecting member 6J of the jet on-off valve 4J and the connecting member 6R of the rim on-off valve 4R are independent of each other.
In the present embodiment, between the on-off valve 4J for the jet and the on-off valve 4R for the rim, a connecting member 6C shared by both is provided.
Is provided.

The common connecting member 6C has water outlet ports 6m and 6n communicating with a common vacuum breaker 61C communicating with the atmosphere. The flush port 6m communicates with the flush port 43 of the jet on-off valve 4J, and the flush port 6n communicates with the flush port 43 of the rim on-off valve 4R. In the present embodiment, the common connecting member 6C is connected to the first cam 85 and the second cam 8 in the axial direction of the rotating shaft 83.
6, the shaft length of the rotating shaft 83 is increased, and the interval between the first cam 85 and the second cam 86 is increased.

(Embodiment 4) Embodiment 4 is shown in FIG. The fourth embodiment has basically the same configuration as the first embodiment, and has the same operation and effect. In the present embodiment, common portions are denoted by common symbols. Hereinafter, a description will be given focusing on a portion different from the first embodiment. The base plate 31 is provided with a rim on-off valve 4R and a jet on-off valve 4J so as to face each other and to be positioned vertically. In addition, the driving device 7 is provided on the base plate 31.
Is attached to the side of the on-off valve 4R.

The cam device 8D is provided with a rotating shaft 83D held on the base plate 31, a gear 87 provided integrally with the rotating shaft 83D and serving as a rotating body that rotates in the horizontal direction, and protrudes from the upper surface of the gear 87. The first cam 85D and the gear 87
And a second cam 86D projecting from the lower surface of the second cam 86D.
The first cam 85D and the second cam 86D have cam surfaces inclined along the circumferential direction of the gear 87.

The rotating shaft 83D is of a vertical type, and is rotatably supported by bearings 90a and 90b fixed to the base plate 31. The first cam 85D is provided with a rim open / close valve 4R.
Is engaged with the sliding cap 47s attached to the shaft 47 of the first embodiment. The second cam 86D engages with a sliding cap 47s attached to the shaft 47 of the jet on-off valve 4J. The sliding cap 47s is formed of a material having good wear resistance, and has a spherical outer surface to reduce frictional resistance.

The driving device 7D includes a motor 71 attached to the base plate 31 and having a downward motor shaft 72;
Drive shaft 77 rotatably held by bearings 90 e and 90 f provided on base plate 31 and engaged with motor shaft 72.
And a drive gear 78 held on the drive shaft 77 and rotatable along the horizontal direction. Drive gear 78 and gear 8
7 mesh with each other.

When the toilet bowl 11 is to be washed, the motor 71 of the driving device 7D is driven based on a user's switch operation, as described above. Then, the motor shaft 72, the drive shaft 77, and the drive gear 78 rotate, whereby the drive gear 7
8 and the gear 87 in the reverse direction to rotate it about the axis P ₄ along the horizontal direction, pressing the shaft 47 of the on-off valve 4R direction of the arrow Y3, i.e. above the cam surface of the first cam 85D rim As a result, the rim on-off valve 4R is opened. 5 and 6, the pressing coil spring 52 is elastically contracted, the piston 46 is separated from the seat surface 41x, and the communication between the water inlet port 42 and the water outlet port 43 is opened. Therefore, as described above, water flows through the rim conduit 19 through the rim conduit 19.
2 to clean the inner surface of the bowl 10.

When the cam surface of the first cam 85D stops pressing the shaft 47 of the rim on-off valve 4R in the direction of arrow Y3, the rim on-off valve 4R closes. Then, the cam surface of the second cam 86D is connected to the shaft 4 of the on-off valve 4J for jet.
7 is pressed in the direction of arrow Y4, that is, downward, to open the on-off valve 4J for jet. Thus, water is supplied to the jet nozzle 15 through the jet conduit 18 in the same manner as described above, and the siphon action is forcibly generated in the trap portion 14.

Next, the cam surface of the second cam 86D stops pressing the shaft 47 of the jet on-off valve 4J in the direction of arrow Y4, and after the jet on-off valve 4J is closed, the cam surface of the first cam 85D is closed. Presses the shaft 47 of the rim on-off valve 4R again in the direction of the arrow Y3, and the rim on-off valve 4R
Is opened again. As a result, the water is again supplied to the rim conduit 1.
Water is supplied to the rim water passage 12 through the pipe 9 and the bowl 10 is sealed.

In the present embodiment, as shown in FIG. 13, the on-off valve 4J for jet is disposed on the lower side and the on-off valve 4R for rim is disposed on the upper side.
It is also possible to arrange the side on the upper side and the on-off valve 4R for the rim on the lower side. In the present embodiment, in consideration of circumstances such as an installation space, the vertical on-off valve 4R for the rim and the vertical on-off valve 4J for the jet face each other so as to abut each other, and the rotating shaft 83D, The drive shaft 77 and the shaft 47 are both arranged substantially vertically in a vertical direction. Therefore, on-off valve 4
Installation space in the width direction of J and 4R can be saved.

(Fifth Embodiment) FIG. 14 shows a fifth embodiment. The fifth embodiment has basically the same configuration as the fourth embodiment, and has the same operation and effect. In the present embodiment, common portions are denoted by common symbols. Hereinafter, a description will be given focusing on portions different from the fourth embodiment. On the lower surface of the base plate 31, an on-off valve 4J for jet and an on-off valve 4 for rim are provided.
The R and the motor 71 of the driving device 7E are attached in a side-by-side state. The cam device 8E includes a vertical first rotation shaft 91 rotatably held by a bearing 90s of the base plate 31.
A vertical second rotating shaft 92 rotatably held by a bearing 90t of the base plate 31; and a rotating body provided integrally with the first rotating shaft 91 and rotating around an axis along a horizontal direction. A first gear 93, a first cam 85 </ b> E protruding from a lower surface of the first gear 93, and a first gear 93 that is provided integrally with the second rotating shaft 92, rotates around the axis in the horizontal direction, and The second gear 94 includes a second gear 94 as a rotating body that meshes with the second gear 86 and a second cam 86 </ b> E protruding from a lower surface of the second gear 94. The first cam 85E and the second cam 86E have inclined surfaces.

The driving device 7E includes a motor 71 mounted on the lower surface of the base plate 31 and having an upward motor shaft 72, and a vertical type which is rotatably held by a bearing 90u provided on the base plate 31 and engages with the motor shaft 72. , And a drive gear 78 held by the drive shaft 77 and meshing with the first gear 93 and capable of horizontal rotation. Toilet bowl 1
In the case of performing the cleaning of No. 1, the motor 71 of the driving device 7E is driven based on the switch operation of the user as described above. Then, the motor shaft 72 and the drive shaft 77 rotates integrally with the drive gear 78 is rotated, thereby rotating in the horizontal direction first gear 93 in a direction opposite to that of the drive gear 78 around the axis P ₆ of this and, the second gear 94 in the opposite direction as the first gear 93 is rotated in the horizontal direction about the axis P ₇ of this.

The rotation of the first gear 93 causes the first cam 85 to rotate.
The cam surface of E pushes the shaft 47 of the rim on-off valve 4R in the direction of arrow Y5, that is, downward, to open the rim on-off valve 4R. Referring to FIGS. 5 and 6, the pressing coil spring 52 is elastically contracted, the piston 46 is separated from the seat surface 41x, and the communication between the water inlet port 42 and the water outlet port 43 is opened. Therefore, as described above, water is supplied to the rim water passage 12 through the rim conduit 19 to clean the inner surface of the bowl portion 10.

With the driving of the cam device 8E of this embodiment,
After the cam surface of the first cam 85 does not press the shaft 47 of the rim on-off valve 4R in the direction of arrow Y5, that is, downward, and the rim on-off valve 4R is closed, the second cam 86E of the second gear 94 is closed. Presses the shaft 47 of the jet on-off valve 4J in the direction of arrow Y6, that is, downward, to open the jet on-off valve 4J. As a result, water is supplied to the jet nozzle 15 via the jet conduit 18 to force the trap portion 14 to have a siphon action.

Next, with the driving of the cam device 8E of the present embodiment, the cam surface of the second cam 86E does not press the shaft 47 of the jet on-off valve 4J in the direction of arrow Y6,
After the on-off valve 4J for the jet is closed, the first cam 85E
The cam surface pushes the shaft 47 of the rim on-off valve 4R again in the direction of the arrow Y5 to open the rim on-off valve 4R again. Thereby, water is supplied to the rim water passage 12 via the rim conduit 19, and the bowl portion 10 is sealed.

In the cam device 8E of this embodiment, the first cam 85E is formed on the lower surface of the first gear 93, and the second cam 86E is formed on the lower surface of the second gear 94. Even in long-term use, the first cam 8
Foreign substances such as dust and water can be prevented from adhering to the 5E and the second cam 86E, and the smooth operation of the first cam 85E and the second cam 86E can be ensured.

In the present embodiment, the vertical on-off valve 4R for the rim and the vertical on-off valve 4J for the jet are juxtaposed with each other adjacently in consideration of the installation space and the like. (Embodiment 6) Embodiment 6 is shown in FIGS.
The sixth embodiment has basically the same configuration as the fifth embodiment, and has the same operation and effect. In the present embodiment, common portions are denoted by common symbols. Hereinafter, a description will be given focusing on a portion different from the fifth embodiment.

The cam device 8F includes mounting pieces 8 opposed to each other.
1 and a first cam 85F and a second cam 86F integrally and coaxially held by the rotating shaft 83, the rotating shaft 83 being installed on the mounting piece 81 along the horizontal direction. And As shown in FIG. 16, the first cam 85F has a ring wall portion 9 that makes one round in the circumferential direction.
7 and a plurality of cam portions 98 projecting inward from the inner peripheral surface of the ring wall portion 97. The cam portion 98 includes inclined surfaces 98a and 98b that are opposed to each other in the circumferential direction, and an inclined surface 98.
a, 98b are connected to each other.

The on-off valves 4R, 4J of this embodiment are of a type in which the shaft 47 is pulled to open. On-off valve 4R, 4
A pin-shaped stopper 99 having a circular cross section is provided at the upper end of the shaft 47 provided at J. When the rotation shaft 83 of the cam device 8F rotates and the first cam 85F rotates in the circumferential direction, the locking member 99 and the shaft 47 are pulled upward in the arrow Y7 direction, that is, upward by the inclined surface 98a of the cam portion 98. 98 connecting surface 98c
9 and the shaft 47 continue to be pulled upward. When the first cam 85F further rotates, the latch 99 is inclined by the spring 98 pressing the shaft 47 or gravity.
Go down along. After that, the inner peripheral surface 97k of the ring wall 97
The latches 99 move relative to each other. The circumferential length of the connecting surface 98c is a region where the latch 99 and the shaft 47 are lifted to open the on-off valve 4R, and can be set as appropriate.

The above explanation is based on the first opening / closing valve 4R.
Regarding the cam action of the cam 85F, the other second cam 86F also performs the same cam action to open and close the on-off valve 4J. As shown in FIG. 15, a driving device 7 </ b> F is provided coaxially at the shaft end of the rotating shaft 83. The driving device 7F includes a motor shaft 72 that engages with the shaft end of the rotating shaft 73.
Is provided.

When cleaning the toilet bowl 11, the motor 71 of the driving device 7F is driven as described above. Then, the motor shaft 72 and the rotation shaft 83 rotate integrally, and the first cam 8
The 5F and the second cam 86F rotate. The rotation of the first cam 85F causes the cam portion 98 of the first cam 85F to pull the shaft 47 of the rim on-off valve 4R in the direction of the arrow Y7, that is, upward, to open the rim on-off valve 4R. Therefore,
As described above, water flows through the rim conduit 19 through the rim conduit 19.
2 to clean the inner surface of the bowl 10.

With the further driving of the cam device 8F of this embodiment, the first cam 85F does not pull the shaft 47 of the rim on-off valve 4R in the direction of the arrow Y7, and the rim on-off valve 4R closes. Then, the cam portion 9 of the second cam 86F
8 indicates the shaft 47 of the on-off valve 4J for the jet with an arrow Y8.
In the direction to open the on-off valve 4J for jet. As a result, water is supplied to the jet nozzle 15 via the jet conduit 18 to force the trap portion 14 to have a siphon action.

Next, the second cam 86F does not pull the shaft 47 of the jet on-off valve 4J in the direction of arrow Y7, and the jet on-off valve 4J closes. After that, the first cam 85F pulls the shaft 47 of the rim on-off valve 4R again in the direction of the arrow Y7 to open the rim on-off valve 4R again. Thereby, water is supplied to the rim water passage 12 through the rim conduit 19 and the bowl portion 10 is sealed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a tankless toilet according to a first embodiment.

FIG. 2 is a perspective view of a main part of the tankless toilet according to the first embodiment.

FIG. 3 is a plan view of a main part of the tankless toilet according to the first embodiment.

FIG. 4 is a rear view of a main part of the tankless toilet according to the first embodiment.

FIG. 5 is a sectional view of the on-off valve in a closed state according to the first embodiment;

FIG. 6 is a cross-sectional view of the open / close valve in the open state according to the first embodiment;

FIG. 7 is a side view of the water supply device using the on-off valve for jet and the cam device according to the first embodiment.

FIG. 8 is a front view of a water supply device using the on-off valve for jet, the on-off valve for rim, and the cam device according to the first embodiment.

FIG. 9 is a side view of a water supply device using a jet on-off valve and a cam device according to the second embodiment.

FIG. 10 is a front view of a water supply device using an on-off valve for a jet, an on-off valve for a rim, and a cam device according to the second embodiment.

FIG. 11 is a side view of a water supply device using a jet on-off valve and a cam device according to the third embodiment.

FIG. 12 is a front view of a water supply device using an on-off valve for a jet, an on-off valve for a rim, and a cam device according to the third embodiment.

FIG. 13 is a front view showing, in section, a part of a water supply device using an on-off valve for a jet, an on-off valve for a rim, and a cam device according to the fourth embodiment.

FIG. 14 is a front view showing a cross section of a part of a water supply device using an on-off valve for a jet, an on-off valve for a rim, and a cam device according to the fifth embodiment.

FIG. 15 is a front view of a water supply device using an on-off valve for a jet, an on-off valve for a rim, and a cam device according to the sixth embodiment.

FIG. 16 is a side view of the cam device according to the sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Flush type toilet 3 ... Water supply device 31 ... Base plate 4R ... On-off valve for rim, 4J ... On-off valve for jet 41 ... Valve housing 42 ... Water inlet port 43 ... Water outlet port 45 ... Valve mechanism (46 ... Piston, 47 ... 7) Driving device (71 ... motor) 74 ... Manual shaft 8, 8D, 8E, 8F ... cam device 85, 85D, 85E, 85F ... 1st cam 86, 86D, 86E, 86F ... 2nd cam

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Katsunori Tomita 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Hideya Koike 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Stock Company Inside Inax (72) Inventor Koji Miwa 5-1-1 Koiehonmachi, Tokoname-shi, Aichi F-term in Inax Co., Ltd. (Reference) 2D039 CB01 FC00

Claims (8)

[Claims] 1. A valve housing having a water inlet port connected to a water supply pipe to which water is supplied and a water outlet port capable of supplying the water in a flow path of a flush toilet, wherein the valve housing projects from the valve housing. An on-off valve movably provided in the valve housing and having a valve mechanism for opening and closing the water inlet port and the water outlet port; and a cam device having a cam for mechanically opening and closing the valve mechanism. Toilet flush water supply device characterized by the above-mentioned. 2. The flushing and flushing device according to claim 1, wherein the valve mechanism has a shaft pressed toward the valve housing by a cam of the cam device. 3. The toilet flushing / water supply system according to claim 1, wherein the cam of the cam device is driven by a motor. 4. The toilet flushing and water supply device according to claim 3, wherein the on-off valve, the motor and the cam device are mounted on a single base plate. 5. The toilet flush water supply device according to claim 3, wherein the motor or the cam device has a manual shaft capable of driving the cam manually. 6. The toilet flushing / water supply apparatus according to claim 5, wherein the manual shaft is detachable. 7. The toilet flushing / water supply apparatus according to claim 1, which is used for a flush toilet having no toilet flushing tank. 8. The toilet flushing / water supply apparatus according to claim 1, wherein a plurality of on-off valves are provided.