JP6740665B2 - Flush toilet - Google Patents

Description

The disclosed embodiments relate to flush toilets.

Conventionally, there is known a flush toilet bowl that uses an emergency power source or the like so that the toilet bowl can be easily washed without having to perform work such as drawing water in a bucket during a power failure ( For example, see Patent Document 1).

The flush toilet described above is provided with an operation unit for power failure, and when such an operation unit is manually operated, an opening/closing valve provided in the drainage channel operates to close the drainage channel and wash the bowl. Electric power is supplied from the emergency power supply to the solenoid valve that opens and closes the water supply path to start water supply. As a result, the wash water collects in the bowl. Then, in the flush toilet, when the operating portion is manually operated, the on-off valve operates to open the drainage channel, which causes the siphon action to draw the waste in the bowl into the drainage channel. Cleaning is completed.

JP, 2014-169580, A

By the way, in the above-mentioned conventional technique, the toilet bowl can be washed only by the remaining amount of the battery or the like as the emergency power source, and the number of washings is limited. Therefore, as a configuration for performing toilet flushing without using an emergency power source, for example, in a flush toilet, a switching unit for switching between water supply and water stop for a bowl unit is provided, and the first wire unit is switched to the opening/closing valve described above. A configuration is conceivable in which the second wire portion is connected to the portion.

In such a configuration, the user manually operates the first and second wire parts by pulling or the like to operate the opening/closing valve to open/close the drainage channel as described above, and the switching part operates. Then, the flush water can be supplied to the bowl to wash the toilet bowl.

However, in the flush toilet described above, for example, when the stroke of the first wire portion that operates the opening/closing valve and the stroke of the second wire portion that operates the switching portion are different, the first and second wire portions are manually operated. Even if operated, the on-off valve and the switching unit may not operate properly.

In one aspect of the embodiment, even if the stroke of the first wire portion that operates the opening/closing valve and the stroke of the second wire portion that operates the switching portion are different, the opening/closing valve and the switching valve are appropriately operated. The purpose is to provide a flush toilet that can.

The flush toilet according to one aspect of the embodiment is provided in a drainage channel that connects a bowl section and a drainage pipe, and an on-off valve that opens and closes the drainage channel and a switch that switches between water supply and water stoppage for the bowl section. And an operation unit that is connected to the on-off valve and the switching unit, respectively, and operates the on-off valve and the switching unit together by a user's manual operation, and the operation unit includes a user's manual operation. A manual receiving unit for receiving, a first and a second moving unit connected to the manual receiving unit and movable by a manual operation on the manual receiving unit, the first moving unit and the open/close valve are connected. At the same time, a first wire portion that operates the on-off valve, a second wire portion that connects the second moving portion and the switching portion, and that operates the switching portion with a stroke different from that of the first wire portion. A free running mechanism for moving one of the first moving unit and the second moving unit by a manual operation on the manual receiving unit.

Accordingly, even if the stroke of the first wire portion that operates the opening/closing valve and the stroke of the second wire portion that operates the switching portion are different, the opening/closing valve and the switching valve can be appropriately operated.

Further, the second moving portion is a cylindrical member, and the idle running mechanism is formed along a circumferential direction of the protrusion portion formed on the first moving portion and the second moving portion. A circumferential groove that can be locked to the protrusion, a long groove that is formed so as to be continuous with the circumferential groove along the longitudinal direction of the second moving portion, and that can be locked to the protrusion, and a second groove of the second moving portion. A spiral groove formed on the peripheral surface, and a case-side protrusion that is formed in a case portion that accommodates the second moving portion and that can be locked with the spiral groove, and are manually operated by the manual reception portion. The protrusion of the first moving part and the circumferential groove of the second moving part are engaged with each other to translate the first moving part and the second moving part to move the first and second wire parts. While operating, the spiral groove of the second moving portion and the case side protrusion are locked to rotate the second moving portion, and then the second moving portion translates to the end of the case portion. When it is moved, by locking the protrusion of the first moving part and the long groove of the second moving part, only the first moving part is moved to idle, and the first wire part is moved. It is characterized by operating. As a result, the idling mechanism can have a simple structure.

Further, a plurality of the spiral groove and the case-side protruding portion are formed. With this, the second moving portion is supported at a plurality of places in the case portion, so that rattling can be suppressed and the second moving portion can be stably accommodated in the case portion. ..

Further, the plurality of case-side protrusions are formed at positions facing each other in the case portion. As a result, the second moving portion is supported from both sides by the case-side protrusions inside the case portion, so rattling can be effectively suppressed, and the second moving portion can be stabilized by the case portion. And can be accommodated.

Further, the second wire portion is connected to the second moving portion so as to be able to idle. The second moving portion rotates when manually operated, but even in such a case, it is possible to prevent the second wire portion from twisting due to idling of the second wire portion. You can

According to one aspect of the embodiment, in the flush toilet, even if the stroke of the first wire portion that operates the opening/closing valve and the stroke of the second wire portion that operates the switching portion are different, switching to the opening/closing valve is performed. The valve and can be operated appropriately.

FIG. 1 is a schematic perspective view of the flush toilet according to the embodiment as viewed from diagonally behind. FIG. 2A is a schematic cross-sectional view showing the internal configuration of the drain socket. FIG. 2B is a schematic cross-sectional view showing the internal configuration of the drain socket. FIG. 3 is a diagram showing the configuration of the toilet bowl cleaning device. FIG. 4 is a schematic perspective view showing a toilet bowl cleaning device including a switching unit. FIG. 5 is a sectional view taken along line VV of FIG. FIG. 6 is a sectional view taken along line VI-VI of FIG. FIG. 7 is a timing chart showing the opening/closing timing of the on-off valve during a power failure. FIG. 8A is an explanatory diagram of the toilet cleaning operation at the time of power failure. FIG. 8B is an explanatory diagram of the toilet cleaning operation during a power failure. FIG. 8C is an explanatory diagram of the toilet cleaning operation during a power failure. FIG. 8D is an explanatory diagram of the toilet cleaning operation at the time of power failure. FIG. 8E is an explanatory diagram of the toilet cleaning operation at the time of power failure. FIG. 9: is a schematic cross section which shows the drain socket of a wall drainage system. FIG. 10 is an exploded perspective view of the operation unit. FIG. 11A is a schematic front view of the second moving unit. FIG. 11B is a schematic right side view of the second moving unit. FIG. 12 is a schematic cross-sectional view for explaining the operation of the second moving unit including the idle running mechanism. FIG. 13 is a schematic perspective view for explaining the assembling of the operation unit to the toilet body. FIG. 14: is a schematic cross section which shows operation|movement of the 1st, 2nd moving part provided with the idling mechanism which concerns on a modification.

Hereinafter, embodiments of the flush toilet disclosed in the present application will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

<1. Structure of flush toilet>
FIG. 1 is a schematic perspective view of the flush toilet according to the embodiment as viewed from diagonally behind. As shown in FIG. 1, the flush toilet 10 includes a toilet body 100, a drain socket 200, and an operation unit 20.

In the present specification, the front side is “front” and the back side is “rear” as viewed from the user standing in front of the toilet body 100. In addition, the right side of the user standing in front of the toilet body 100 is referred to as “right side”, and the left side is referred to as “left side”. In addition, the upper side is referred to as “upper side” and the lower side is referred to as “lower side” when viewed from the user standing in front of the toilet body 100.

The toilet bowl main body 100 includes a bowl portion 110 that receives waste, and a drain trap pipe 120 that is connected to the bowl portion 110 and guides the waste in the bowl portion 110 to the drain pipe 300.

In the bowl portion 110, a jet water spouting port 111 that discharges the washing water toward the drain trap pipe 120, and in the bowl portion 110, the washing water is discharged to form a swirling flow of the washing water in the bowl portion 110. The rim spout 113 is formed.

The drain trap conduit 120 has an ascending path portion extending upward from its inlet and a descending path portion extending downward from the end of the ascending path portion and connected to the drain socket 200. In addition, cleaning water (reserved water) for forming a water-sealed state is stored from the bowl portion 110 to the ascending path portion of the drain trap pipeline 120.

The drain socket 200 includes a connection channel 211 and is provided between the drain trap pipeline 120 and the drain pipe 300. Then, the drain socket 200 connects the drain trap pipe 120 and the drain pipe 300 via the connection flow passage 211.

As described above, in the flush toilet 10 according to the present embodiment, the drain trap conduit 120 and the connection conduit 211 form the drain conduit 305 that connects the bowl portion 110 and the drain pipe 300.

In the toilet body 100 configured as described above, the siphon action is efficiently generated by the wash water discharged from the jet water spout 111, and the waste in the bowl 110 is drained using the siphon action. To the drain pipe 300.

<2. Structure of drain socket>
Next, the configuration of the drain socket 200 will be specifically described with further reference to FIGS. 2A and 2B. 2A and 2B are schematic cross-sectional views showing the internal configuration of the drain socket 200. Note that FIG. 2A shows the open/close valve 240 in an open state, and FIG. 2B shows the open/close valve 240 in a closed state.

As shown in FIG. 1, the drain socket 200 is a floor drain type drain socket, and includes a socket body 210 and a packing 220. The packing 220 is provided on the upper end portion of the socket body 210 and is formed of an elastic material such as rubber. The packing 220 has a through hole penetrating in the vertical direction, and the downstream end of the drain trap pipeline 120 is connected to this through hole.

As shown in FIGS. 2A and 2B, the socket body 210 includes the above-described connection flow path 211 and connects the drain trap conduit 120 and the drain pipe 300.

Further, the drain socket 200 includes an opening/closing valve 240 and a rotating shaft 243. The on-off valve 240 is provided in the connection channel 211 that is a part of the drainage channel 305, and opens and closes the drainage channel 305 (more precisely, the connection channel 211). As the opening/closing valve 240, for example, a flapper valve can be used, but the invention is not limited to this.

The rotating shaft 243 rotatably supports the on-off valve 240. The operation unit 20 (see FIG. 1) is connected to the rotary shaft 243.

As shown in FIG. 1, the operation section 20 includes a grip section 30, a first wire section 80, and a second wire section 90 (not shown) (see FIG. 3 described later). The grip portion 30 is, for example, a ring-shaped member that receives a user's manual operation when cleaning the toilet bowl during a power failure. The grip portion 30 is an example of a manual reception unit.

As the first and second wire portions 80 and 90, for example, release wires can be used. Specifically, the first wire portion 80 includes an outer tube 80a and an inner wire 80b inserted inside the outer tube 80a. The second wire portion 90 has the same configuration (see FIG. 10 described later).

One end of the inner wire 80b of the first wire portion 80 is connected to the rotating shaft 243 of the on-off valve 240, while the other end is connected to the grip portion 30. The detailed configurations of the operation unit 20 and the second wire unit 90 will be described later.

Then, for example, when the user performs a manual operation such as pulling on the grip portion 30, the inner wire 80b of the first wire portion 80 moves and rotates the rotating shaft 243 to rotate the opening/closing valve 240.

Specifically, the opening/closing valve 240 is maintained in the open state shown in FIG. 2A in a normal time when the operation unit 20 is not operated by the user. Therefore, the opening/closing valve 240 does not normally change the flow passage cross-sectional area of the connection flow passage 211.

On the other hand, when the user pulls the grip portion 30 of the operation unit 20, the opening/closing valve 240 rotates around the rotation shaft 243 along with the movement of the inner wire 80b, and the closed state shown in FIG. The channel cross-sectional area of the channel 211 is narrowed.

The on-off valve 240 does not need to completely close the connection flow passage 211. That is, it suffices if the water level inside the bowl 110 can be raised above the initial water level by the cleaning water supplied from the rim water spout 113 and the jet spout 111, and the water level between the opening/closing valve 240 and the connection flow path 211 may be slightly increased. There may be a gap.

Here, an example in which the drainage socket 200 is provided with the opening/closing valve 240 as a configuration for changing the flow passage cross-sectional area of the connection flow passage 211 has been described. It may have a trap. The turn trap can be electrically turned up and down to discharge the wash water stored in the bowl 110 together with the dirty water. Further, here, the example in which the opening/closing valve 240 is provided in the connection flow passage 211 has been described, but the movable parts such as the opening/closing valve 240 and the turn trap may be provided in the drain trap conduit 120.

The operation unit 20 is arranged inside a decorative panel (not shown) provided at the rear of the toilet body 100 and is invisible from the outside. Then, the user can manually operate the grip portion 30 of the operation unit 20 by removing the decorative panel.

<3. Toilet bowl cleaning device configuration>
Next, the configuration of the toilet bowl cleaning device for cleaning the toilet bowl in the flush toilet 10 will be described with reference to FIG. FIG. 3 is a diagram showing the configuration of the toilet bowl cleaning device.

As shown in FIG. 3, the toilet bowl cleaning device 150 is arranged near the rear of the toilet body 100. The toilet bowl cleaning device 150 is connected to an external power supply (not shown), and when there is no power failure, the bowl part 110 is supplied with cleaning water by driving parts such as an electromagnetic valve using external power supplied from the external power supply. Supply.

The toilet bowl cleaning device 150 includes a constant flow valve 155, a solenoid valve 156, and a rim water discharge vacuum breaker 164. A switching valve 157 that switches between water supply to a water storage tank 177 and rim water discharge, a water storage tank 177, a pressurizing pump 173, a jet water discharge vacuum breaker 166, and a water drain plug 171 are built in the water supply passage 151. It Further, the toilet bowl cleaning device 150 includes a control unit 174 that controls the opening/closing operation of the solenoid valve 156, the switching operation of the switching valve 157, the pressurizing operation of the pressurizing pump 173, and the like.

The constant flow valve 155 throttles the wash water that has flowed in through the water stop valve 152, the strainer 153, and the branch fitting 154 to a predetermined flow rate or less. For example, the constant flow valve 155 limits the flow rate of wash water to 16 liters/minute or less. The cleaning water that has passed through the constant flow valve 155 flows into the electromagnetic valve 156, and the cleaning water that has passed through the electromagnetic valve 156 is supplied to the rim spout 113 or the water storage tank 177 by the switching valve 157.

The solenoid valve 156 is a diaphragm-type solenoid valve that opens and closes under the control of the control unit 174. Specifically, the water supply path 151 is provided with a diaphragm 310, and a pressure chamber 311 is provided adjacent to the diaphragm 310. Then, the solenoid valve 156 changes the pressure of the pressure chamber 311 to operate the diaphragm 310, and controls the flow of washing water in the water supply passage 151.

Specifically, the solenoid valve 156 is brought into an open state when an open signal is input from the control unit 174, whereby the pressure chamber 311 is lowered and the diaphragm 310 opens the water supply passage 151, so that the supplied cleaning water is supplied. Flow into the switching valve 157. On the other hand, the electromagnetic valve 156 is closed when a closing signal is input from the control unit 174, whereby the pressure chamber 311 rises, the diaphragm 310 closes the water supply passage 151, and the washing water is supplied to the switching valve 157. To stop. The detailed configurations of the solenoid valve 156 and the diaphragm 310 will be described later with reference to FIGS. 5 and 6.

The switching valve 157 is switched by a control signal of the control unit 174, and discharges the cleaning water that has flowed in via the electromagnetic valve 156 from the rim water discharge port 113 or flows into the water storage tank 177.

The rim water discharge vacuum breaker 164 is disposed in the middle of the rim side water supply passage 159 that guides the cleaning water that has passed through the switching valve 157 to the rim water discharge port 113, and prevents backflow of the cleaning water from the rim water discharge port 113. Further, the rim spouting vacuum breaker 164 is arranged above the upper end surface of the bowl portion 110, thereby reliably preventing backflow. Further, the wash water overflowing from the atmosphere opening portion of the rim water discharge vacuum breaker 164 flows into the water storage tank 177 through the return pipe line 165 and the float check valve 169.

The water storage tank 177 stores the wash water to be spouted from the jet spout 111. For example, the water storage tank 177 has an internal volume of about 2.5 liters.

Further, in the present embodiment, the tip (lower end) of the tank side water supply passage 161 is connected to the float check valve 167 to prevent backflow from the water storage tank 177 to the tank side water supply passage 161. An upper end float switch 175 and a lower end float switch 176 are arranged inside the water storage tank 177 so that the water level in the water storage tank 177 can be detected. The upper end float switch 175 is turned on when the water level in the water storage tank 177 reaches a predetermined water level, and the control unit 174 detects this and closes the solenoid valve 156. On the other hand, the lower end float switch 176 is switched on when the water level in the water storage tank 177 drops to a predetermined water level, and the control unit 174 detects this and stops the pressurizing pump 173.

The pressurizing pump 173 pressurizes the wash water stored in the water storage tank 177 and discharges it from the jet water spouting port 111. The pressurizing pump 173 is connected by a pump side water supply passage 162 extending from the water storage tank 177 and pressurizes the wash water stored in the water storage tank 177. For example, the pressurizing pump 173 pressurizes the wash water in the water storage tank 177 to discharge the wash water from the jet spout 111 at a maximum flow rate of about 120 liters/minute.

The water drain plug 171 is arranged near the lower end of the water storage tank 177 and below the pressurizing pump 173. Therefore, by opening the water drain plug 171, the cleaning water in the water storage tank 177 and the pressurizing pump 173 can be discharged at the time of maintenance or the like. A water receiving tray 172 is arranged below the pressure pump 173. The water receiving tray 172 receives condensed water droplets or water leakage.

On the other hand, the outlet of the pressurizing pump 173 is connected to the jet water outlet 111 at the bottom of the bowl 110 via the jet side water supply passage 163. The middle of the jet side water supply passage 163 is formed in a convex shape upward, and the jet side water supply passage top 163a, which is the highest portion of this convex portion, extends from the water storage tank 177 to the jet water outlet 111. It is the highest part of the wash water pipeline. The downstream side of the jet side water supply passage 163 with respect to the jet side water supply passage top 163a is set to the same height as the jet water spouting port 111 described above.

An overflow passage 168 having an overflow port 168a at one end is connected to the jet side water supply passage 163. The overflow port 168a is provided above the upper end float switch 175. When the water level in the water storage tank 177 becomes higher than the upper end float switch 175, the water in the water storage tank 177 flows into the overflow passage 168 from the overflow port 168a, is pressurized by the pressurizing pump 173, and then the flapper is pressed. It is discharged from the jet water spout 111 through the valve 178.

The jet water discharge vacuum breaker 166 is arranged in the middle of the tank side water supply passage 161 that guides the wash water that has passed through the switching valve 157 to the water storage tank 177, and prevents the wash water from flowing backward from the water storage tank 177. Further, the wash water overflowing from the atmosphere opening portion of the jet water discharge vacuum breaker 166 flows into the water storage tank 177 through the return pipe line 165 and the float check valve 169.

The control unit 174 operates the electromagnetic valve 156, the switching valve 157, and the pressurizing pump 173 sequentially by the operation of the toilet flush switch (not shown) by the user, and discharges water from the rim water discharge port 113 and the jet water discharge port 111. The bowl portion 110 is washed by sequentially starting it. Further, after the cleaning is completed, the control unit 174 opens the electromagnetic valve 156 and switches the switching valve 157 to the water storage tank 177 side to supply the cleaning water to the water storage tank 177. When the water level in the water storage tank 177 rises and the upper end float switch 175 detects a specified water storage amount, the control unit 174 closes the electromagnetic valve 156 to stop the water supply.

<4. Toilet bowl cleaning operation during non-power outage>
Here, the toilet flushing operation when there is no power failure, that is, when the solenoid valve 156 is operated by an external power source will be described.

During a non-power outage, for example, when a toilet flush switch (not shown) is operated, the first rim water discharge (preliminary rim flush) is started. Specifically, the control unit 174 inputs an open signal to the solenoid valve 156 to open the solenoid valve 156, and switches the switching valve 157 to the rim spout 113 side. As a result, the wash water is discharged from the rim spout 113 by the water supply pressure of the tap water. The cleaning water discharged from the rim spout 113 flows downward in the bowl 110 while swirling, and the inner wall surface of the bowl 110 is cleaned.

After that, jet water spouting is started, but also during this time, spouting of cleaning water continues from the rim spout 113. First, the control unit 174 sends a signal to the pressurizing pump 173 to activate the pressurizing pump 173. When the pressurizing pump 173 is activated, the wash water stored in the water storage tank 177 flows into the pressurizing pump 173 and is pressurized. The cleaning water pressurized by the pressurizing pump 173 passes through the jet side water supply passage top 163 a of the jet side water supply passage 163 and is discharged from the jet water spouting port 111 opened at the bottom of the bowl portion 110.

The cleaning water discharged from the jet water spouting port 111 flows into the drain trap pipeline 120 to fill the drain trap pipeline 120 with water and cause a siphon action. Due to this siphon action, accumulated water and dirt in the bowl 110 are sucked into the drain trap pipe 120 and discharged from the drain pipe 300.

When the cleaning water is discharged from the jet water discharge port 111 by the pressurizing pump 173, the water level in the water storage tank 177 is lowered and the lower end float switch 176 is turned on. When the lower end float switch 176 is turned on, the control unit 174 detects that the cleaning water stored in the water storage tank 177 has been exhausted, sends a signal to the pressurizing pump 173 to stop the cleaning water, and jet water discharge. To finish. The water level from the rim water spouting port 113 that is continuously being raised raises the water level in the bowl 110, and after a predetermined rim water spouting time, the water in the bowl 110 reaches a predetermined water level ( Refill).

After the rim spouting is finished, the control unit 174 sends a signal to the switching valve 157 to switch the switching valve 157 to the water storage tank 177 side while keeping the electromagnetic valve 156 in the open state. As a result, the wash water flows into the water storage tank 177, and the water storage tank 177 is replenished with the wash water.

When the wash water is supplied to the water storage tank 177 and the water level in the water storage tank 177 reaches the specified water storage level, the upper end float switch 175 is turned on. When the upper end float switch 175 is turned on, the control unit 174 sends a close signal to the solenoid valve 156 to close the solenoid valve 156. The control unit 174 also sends a signal to the switching valve 157 to switch it to the rim spout 113 side. Then, the flush toilet 10 is in a standby state.

As described above, the flush toilet 10 according to the present embodiment uses the electric power supplied from the external power source and controls the operations of the solenoid valve 156, the switching valve 157, the pressurizing pump 173, and the like by the signal from the control unit 174. And wash the toilet.

By the way, as described above, the toilet bowl cleaning device 150 can operate the solenoid valve 156 and the like by using the external electric power from the external power source in the non-power outage to perform the toilet bowl cleaning, but operate the solenoid valve 156 and the like in the power outage. I can't let you do it. Further, even when the emergency power source such as a battery is used, the toilet bowl can be washed only by the remaining amount of the battery, and the number of washings is limited.

Therefore, in the flush toilet 10 according to the present embodiment, there is no need to supply electric power, and even if there is a power failure, the number of washings is not limited and the toilet can be washed. did. Specifically, the flush toilet 10 includes the above-described on-off valve 240 and a switching unit 180 that switches between water supply and water stop for the bowl 110, and the on-off valve 240 and the switching unit 180 are manually operated by the user. It is configured to operate together by operation.

<5. Structure of flush toilet for cleaning toilet in case of power failure>
Hereinafter, the configuration of the flush toilet 10 for cleaning the toilet at the time of power failure will be described in more detail. As shown in FIG. 3, the switching unit 180 is provided in the flow path 312 connected to the pressure chamber 311 described above. The flow path 312 is a flow path that allows water in the pressure chamber 311 to flow out to release the pressure in the pressure chamber 311 and may be referred to as a “pilot flow path 312” below.

Further, the operation unit 20 described above is connected to the switching unit 180. Specifically, the second wire portion 90 of the operation unit 20 is connected to the switching unit 180. As described above, the first wire portion 80 of the operation unit 20 is connected to the opening/closing valve 240, and the second wire portion 90 is connected to the switching unit 180. That is, the operation unit 20 is connected to the on-off valve 240 and the switching unit 180, respectively, and is configured such that the on-off valve 240 and the switching unit 180 can be operated together by a user's manual operation.

The first wire portion 80 and the second wire portion 90 are provided in parallel. Accordingly, for example, if the first and second wire portions 80 and 90 are provided in series, the entire wire length becomes long, which makes it difficult to handle the wires when arranging them in the flush toilet 10. By being provided in parallel, it is possible to arrange the first and second wire portions 80 and 90 in a layout suitable for each, and it is possible to improve workability.

FIG. 4 is a schematic perspective view showing the toilet bowl cleaning device 150 including the switching unit 180. As shown in FIG. 4, the toilet bowl cleaning device 150 is configured as a unit by integrally forming the solenoid valve 156, the switching valve 157, the switching unit 180, etc. described above, but is not limited to this, and the constituent elements Part or all of the above may be configured separately.

5 and 6 are schematic cross-sectional views of the vicinity of the solenoid valve 156 and the switching unit 180 in the toilet bowl cleaning device 150. 5 is a sectional view taken along line VV of FIG. 4, and FIG. 6 is a sectional view taken along line VI-VI of FIG.

The solenoid valve 156 and the switching unit 180 both switch the water supply and the water stop for the bowl unit 110 by opening or closing the water supply passage 151. First, the solenoid valve 156 will be described.

Since the solenoid valve 156 is a diaphragm-type solenoid on-off valve, as shown in FIG. 5, the toilet bowl cleaning device 150 includes the diaphragm 310, the pressure chamber 311, and the pilot flow passage 312. , A valve body 156a and a solenoid 156b.

The diaphragm 310 is configured so that it can be seated on a valve seat 251 provided in a water supply passage 151 to the bowl portion 110. Accordingly, the water supply passage 151 is closed by the diaphragm 310 when the diaphragm 310 is seated on the valve seat 251, and is partitioned into the upstream water supply passage 151a and the downstream water supply passage 151b. In this specification, “upstream” and “downstream” are used to mean “upstream” and “downstream” in the flow direction of the wash water.

The pressure chamber 311 is provided adjacent to the diaphragm 310 at a position opposite to the water supply passage 151. Further, the diaphragm 310 is formed with a hole 310a that connects the pressure chamber 311 and the upstream water supply passage 151a. As a result, the water in the upstream water supply passage 151a flows into the pressure chamber 311 through the hole 310a. That is, the pressure chamber 311 is filled with water flowing from the upstream water supply passage 151a.

The pilot channel 312 has one end connected to the pressure chamber 311 and the other end connected to the tank side water supply channel 161 (see FIG. 6 ).

The solenoid valve 156 opens and closes the pilot channel 312. Specifically, the solenoid valve 156 closes the pilot passage 312 when the valve body 156a is seated on the valve seat 313 provided in the pilot passage 312.

When the pilot passage 312 is closed by the solenoid valve 156, the water pressure from the upstream water supply passage 151a acts on the pressure chamber 311, that is, the internal pressure of the pressure chamber 311 rises and the diaphragm 310 is closed. It is moved toward the seat 251. As a result, the diaphragm 310 is in a water shut state in which it sits on the valve seat 251 and closes the water supply passage 151.

Then, for example, when an open signal is input from the control unit 174, the solenoid valve 156 energizes the solenoid 156b, pulls up the valve body 156a to separate it from the valve seat 313, and opens the pilot flow passage 312.

As a result, the water in the pressure chamber 311 flows out from the pressure chamber 311 to the pilot channel 312, as indicated by the arrow A1 in FIG. The water flowing out to the pilot flow passage 312 passes between the valve body 156a and the valve seat 313, and then, as shown by an arrow A2 in FIG. 6, from the outlet portion 312a of the pilot flow passage 312 to the tank side water supply passage. It passes through 161 and flows out to a water storage tank 177.

As described above, when the pilot flow path 312 is opened by the solenoid valve 156, water in the pressure chamber 311 flows out, that is, the internal pressure of the pressure chamber 311 decreases, and the diaphragm 310 is separated from the valve seat 251. To move. As a result, the diaphragm 310 is brought into a water supply state in which the water supply passage 151 is opened. Specifically, the upstream water supply passage 151a and the downstream water supply passage 151b communicate with each other, and as shown by an arrow B, the cleaning water is switched to the switching valve 157. Flow into.

In this way, the diaphragm 310 switches between the water stop state in which the water supply passage 151 is closed and the water supply state in which the water supply passage 151 is opened.

Next, the switching unit 180 will be described. As shown in FIGS. 5 and 6, the switching unit 180 includes a connection lever 181, a shaft 182, a cam portion 183, and a poppet valve 184.

As shown in FIG. 4, the connection lever 181 is arranged so as to be exposed in the toilet bowl cleaning device 150, and the second wire portion 90 (see FIG. 6) of the operation unit 20 is connected to the one end 181a. Note that in FIG. 6, the second wire portion 90 is schematically shown by a broken-line square block for the sake of simplicity of illustration.

The shaft 182 is connected to the other end 181b of the connecting lever 181. The other end 182b of the shaft 182, which is opposite to the one end 182a connected to the connecting lever 181, is located in the pilot flow passage 312 described above, and is rotatably supported around the rotation shaft 182c.

Therefore, when the second wire portion 90 of the operation unit 20 is manually operated by the user, the operating force of the manual operation is transmitted to the shaft 182 via the connection lever 181 and the shaft 182 rotates about the rotation axis 182c. Will be done.

The cam portion 183 is provided on the other end 182b side of the rotatable shaft 182 as described above. Therefore, the cam portion 183 also rotates around the rotation axis 182c with the rotation of the shaft 182 by the manual operation of the operation portion 20.

Further, as shown in FIG. 5, the cam portion 183 includes a contact portion 183a and a non-contact portion 183b. The contact part 183a is a part that contacts the poppet valve 184 when it rotates around the rotation shaft 182c and faces the poppet valve 184, and the non-contact part 183b when it faces the poppet valve 184. It is a part that does not come into contact with.

Note that FIG. 5 shows a state in which the operation unit 20 is not manually operated, that is, a state in which the shaft 182 and the cam unit 183 are not rotating. In such a state, the cam portion 183 is arranged such that the non-contact portion 183b faces the poppet valve 184 by the urging force of a spring (not shown).

The poppet valve 184 is provided in the pilot flow path 312 and includes a valve body 184a, a plunger 184b, a fixing member 184c, and a spring 184d.

As shown in FIG. 5, a bypass passage 314 that bypasses the upstream side and the downstream side of the valve body 156a of the solenoid valve 156 is formed in the pilot passage 312, and an upstream end of the bypass passage 314 is A valve seat 315 is provided. The valve body 184a of the poppet valve 184 can be seated on the valve seat 315 of the bypass passage 314.

An insertion hole 184a1 is formed near the center of the valve body 184a, and the plunger 184b is inserted and fixed.

The plunger 184b is an elongated member, and is arranged such that the tip 184b1 penetrates the bypass passage 314 and projects to the vicinity of the cam portion 183 located on the downstream side of the solenoid valve 156 in the pilot passage 312. It

The fixing member 184c is fixed at an appropriate position near the inlet of the pilot channel 312. A flow passage 184c1 through which water flowing out of the pressure chamber 311 can flow is formed in the fixing member 184c.

The spring 184d is arranged between the fixing member 184c and the plunger 184b, and urges the plunger 184b and the valve body 184a in the direction for seating them on the valve seat 315 (the right side on the paper surface in FIG. 5).

The switching unit 180 configured as described above operates according to a user's manual operation on the operation unit 20. Specifically, when the second wire portion 90 of the operation unit 20 is manually operated, the connection lever 181, the shaft 182, and the cam portion 183 rotate around the rotation shaft 182c.

When the contact portion 183a comes to a position facing the plunger 184b of the poppet valve 184 as the cam portion 183 rotates, the contact portion 183a contacts the tip 184b1 of the plunger 184b. Then, when the plunger 184b receives a pressing force that resists the biasing force of the spring 184d and the water pressure of the pilot flow passage 312 from the contact portion 183a of the cam portion 183, the plunger 184b separates the valve body 184a from the valve seat 315 and the pilot flow The road 312 is opened.

As a result, the water in the pressure chamber 311 flows out from the pressure chamber 311 to the pilot flow passage 312, and the water flowing out to the pilot flow passage 312 has a valve body 184a and a valve seat 315 as shown by a dashed arrow C in FIG. And then flows into the bypass 314. The water that has flowed into the bypass passage 314 flows out to the water storage tank 177 through the same route (see arrow A2 in FIG. 6) as when the solenoid valve 156 was opened.

In this way, the poppet valve 184 operates when it comes into contact with the cam portion 183, and causes the water in the pressure chamber 311 to flow out through the pilot flow passage 312, similarly to when the solenoid valve 156 is opened.

In other words, in the pilot flow path 312, a part of the water route when opened by the poppet valve 184 and a part of the water route when opened by the solenoid valve 156 are made the same, The pilot channel 312 is designed to be shared.

In the present embodiment, by sharing the pilot flow path 312 described above, it is possible to reduce the size of the toilet flushing device 150 and, in turn, the overall size of the flush toilet 10.

As described above, when the pilot flow path 312 is opened by the poppet valve 184, water in the pressure chamber 311 flows out, the internal pressure of the pressure chamber 311 decreases, and the diaphragm 310 is separated from the valve seat 251. Move to. As a result, the diaphragm 310 enters a water supply state in which the water supply passage 151 is opened.

As described above, the flush toilet 10 according to the present embodiment is provided with the switching unit 180 and the operation unit 20 and the like, and thereby the water supply and the water stop of the bowl unit 110 are switched by the manual operation of the user. be able to.

<6. Toilet bowl cleaning operation at power failure>
Next, the toilet cleaning operation at the time of power failure will be described with reference to FIGS. 7 and 8A to 8E. FIG. 7 is a timing chart showing the opening/closing timing of the opening/closing valve 240 at the time of a power failure, and the water supply/water stop timing for the bowl section 110 in the switching section 180. 8A to 8E are explanatory views of the toilet cleaning operation at the time of power failure.

As shown in FIG. 7, the on-off valve 240 is in the open state, that is, the flow passage cross-sectional area of the connection flow passage 211 is not changed before the user excretes (timing of FIG. 7). t1). Further, the switching unit 180 is in a water stop state in which water is not supplied to the bowl unit 110.

The user manually operates the operation unit 20 and operates both the on-off valve 240 and the switching unit 180 after excreting during a power failure. Specifically, the user holds the grip portion 30 of the operation unit 20 and pulls the first and second wire portions 80 and 90. As a result, the opening/closing valve 240 is rotated about the rotation shaft 243 connected to the first wire portion 80, and the opening/closing valve 240 is closed, that is, the opening/closing valve 240 narrows the flow passage cross-sectional area of the socket body 210. It is brought into a state of being made (timing t2 in FIG. 7 and FIG. 8A).

On the other hand, in the switching section 180 connected to the second wire section 90, as described above, the cam section 183 rotates to contact the poppet valve 184 and open the pilot flow path 312. As a result, the internal pressure of the pressure chamber 311 is lowered, the diaphragm 310 is moved away from the valve seat 251, and the water supply path 151 is opened (timing t2 in FIG. 7).

Accordingly, at the time of power failure, cleaning water can be supplied to the bowl portion 110 from at least one of the rim spout 113 and the jet spout 111. Since the on-off valve 240 is in the closed state and closes the connection flow passage 211 as described above, as shown in FIG. 8B, the cleaning water is stored in the bowl portion 110 and the water level in the bowl portion 110 is increased. Rise.

Then, when the water level inside the bowl section 110 reaches a water level at which the bowl section 110 can be washed, the user stops the manual operation on the operation section 20 (for example, returns the pulled gripping section 30). Here, the “water level at which the bowl portion 110 can be washed” is, for example, a water level at which the water inside the bowl portion 110 can be discharged or replaced. Alternatively, the “water level at which the bowl portion 110 can be washed” is, for example, a water level at which a siphon action can be generated.

When the manual operation on the operation unit 20 is stopped, in the switching unit 180, the urging force of a spring (not shown) causes the cam unit 183 to rotate to the original position before the operation and the contact with the poppet valve 184. It is released and the pilot channel 312 is closed. As a result, the internal pressure of the pressure chamber 311 increases, the diaphragm 310 is moved toward the valve seat 251, and the water supply passage 151 is closed (timing t3 in FIG. 7). As a result, the supply of cleaning water to the bowl 110 is stopped.

When the manual operation on the operation unit 20 is stopped, the open/close valve 240 is opened (timing t3 in FIG. 7). Then, as shown in FIG. 8C, the cleaning water stored in the bowl portion 110 flows into the drain trap pipeline 120, so that the drain trap pipeline 120 becomes full of water, and a siphon action occurs and stays in the bowl portion 110. A large amount of wash water is discharged.

Here, for example, as shown in FIG. 8D, when the water level in the bowl portion 110 is lowered by the above-described drainage operation, odors or the like from the drain pipe 300 may flow back into the room. The washing water is supplied again to 110 (refill).

Specifically, the operation unit 20 is manually operated again. As a result, in the switching unit 180, as described above, the water supply path 151 is opened, and the wash water is supplied to the bowl 110 (timing t4 in FIG. 7).

Subsequently, as shown in FIG. 8E, when the lowered water level in the bowl section 110 returns to near the initial water level, the user stops the manual operation on the operation section 20. As a result, the supply of cleaning water to the bowl 110 is stopped (timing t5 in FIG. 7). In this way, by returning the water level in the bowl section 110 to near the initial water level (performing a refill), the initial water level is stabilized, the water in the bowl section 110 overflows from the bowl surface, and the water from the drain pipe 300 to the indoor side. It is possible to suppress entry of odor and the like into.

As described above, in the present embodiment, since the operation unit 20 operates both the on-off valve 240 and the switching unit 180 by the manual operation of the user, the number of washings is not limited even during a power failure, and the toilet bowl is not limited. Washing can be done.

Although the refill is performed in the above, the refill is not limited to this. For example, when the water level in the bowl 110 does not decrease due to the drainage operation and the water level is near the initial level, the refill is omitted. May be.

By the way, in the flush toilet 10 described above, for example, the stroke (operating distance) of the first wire portion 80 that operates the opening/closing valve 240 and the stroke of the second wire portion 90 that operates the switching portion 180 may be different. is there. In such a case, even if the first and second wire portions 80 and 90 are manually operated by the user, the on-off valve 240 and the switching portion 180 may not operate properly.

More specifically, the drainage system in the flush toilet 10 includes, for example, a floor drainage system and a wall drainage system. Further, the drainage socket 200 is different in type depending on the drainage method. Specifically, as shown in FIGS. 2A and 2B, the drain socket 200 described above is of the floor drain type and has a different shape from the wall drain type.

FIG. 9 is a schematic cross-sectional view showing a wall drain type drain socket 1200. As shown in FIG. 9, in the drain socket 1200, the connection flow path 1211 connects the drain trap pipeline 120 (see FIG. 2A) and the drain pipe 1300 provided on the wall W of the toilet room.

As can be seen from the comparison between FIG. 2A and FIG. 9, the connection flow channel 121 of the floor drainage type drainage socket 200 has an I shape in a side view along the vertical direction, whereas the wall drainage type drainage socket 1200. The connection flow path 1211 is a L-shape in a side view that curves in the middle.

Due to the above difference in shape, the floor drainage type on-off valve 240 and the wall drainage type on-off valve 1240 have different operating ranges. Specifically, the operating range of the floor drain type on-off valve 240 is about 90 degrees around the rotation axis 243 (see FIGS. 2A and 2B). On the other hand, as shown in FIG. 9, the operating range of the wall drainage type on-off valve 1240 is about 45 degrees around the rotation axis 1243. In FIG. 9, the open state of the on-off valve 1240 is shown by a solid line, and the closed state is shown by an imaginary line.

Therefore, in the 1st wire part 80, a stroke will change with a drainage system. Specifically, the stroke of the first wire portion 80 that operates the floor drainage type on-off valve 240 is longer than the stroke of the first wire portion 80 that operates the wall drainage type on-off valve 1240.

Therefore, depending on the drainage method, the stroke of the first wire portion 80 and the stroke of the second wire portion 90 that operates the switching portion 180 may differ significantly. In this case, even if the first and second wire portions 80 and 90 are manually operated by the user, for example, the opening/closing valves 240 and 1240 operate at the time when the operation of the switching portion 180 is completed, but the drainage channel 305 is connected. There is a risk that the on-off valves 240 and 1240 and the switching unit 180 may not operate properly due to the difference in strokes such as the passages 211 and 1211 cannot be closed.

Therefore, in the flush toilet 10 according to the present embodiment, even if the stroke of the first wire portion 80 and the stroke of the second wire portion 90 are different, the on-off valves 240 and 1240 and the switching portion 180 are Is configured to operate properly.

Specifically, the operation unit 20 includes the idle running mechanism 40 that can operate only the one having the longer stroke after the operation of the shorter one of the first wire unit 80 and the second wire unit 90 is completed. I did it.

Hereinafter, the operation unit 20 including the idle running mechanism 40 will be described in detail. FIG. 10 is an exploded perspective view of the operation unit 20. As shown in FIG. 10, the operation unit 20 includes a case unit 44, a moving unit 50, and a free-running mechanism 40 in addition to the grip unit 30, the first and second wire units 80 and 90 described above.

The case part 44 includes a first case part 45 and a second case part 46. The first case portion 45 is attached to the inner wire 80b of the first wire portion 80. The second case portion 46 is attached to the inner wire 90b of the second wire portion 90.

The moving unit 50 includes a first moving unit 60 and a second moving unit 70. The first moving portion 60 is a columnar member, and is attached to the inner wire 80b of the first wire portion 80 to be connected to the grip portion 30. The first moving portion 60 is housed in the first case portion 45 so as to be slidable in the axial direction of the first wire portion 80.

Therefore, in the operation unit 20, the first moving unit 60 is moved in the first case unit 45 by the manual operation on the grip unit 30, so that the operation force of the manual operation is opened/closed via the first wire unit 80. To valve 240. The on-off valve 240 to which the operating force is transmitted rotates around the rotation shaft 243 to open and close the drainage channel 305 (more precisely, the connection channel 211) as shown in FIGS. 2A and 2B. Thereby, in this embodiment, the opening/closing valve 240 can be stably rotated by a simple operation by the user.

In the first case portion 45, in addition to the first moving portion 60, a spring 62 that applies a biasing force to the first moving portion 60 in a direction opposite to the pulling direction of the grip portion 30, and A hook 63 that prevents the wire portion 80 from coming off the first case portion 45 is also accommodated. Then, a cover 65 is attached to the first case portion 45 that accommodates the first moving portion 60 and the like. The first case portion 45 with the cover 65 attached is shown in FIG. 13, which will be described later.

The second moving portion 70 is a columnar member and is attached to the inner wire 90b of the second wire portion 90. At this time, the second wire portion 90 is connected to the second moving portion 70 so as to be idle. Specifically, in the second moving portion 70, a through hole 70a having a diameter larger than that of the inner wire 90b is formed along the axial direction, and the inner wire 90b and the crimped portion 90b1 at the tip are inserted into the through hole 70a. .. With this configuration, the second wire portion 90 is unlikely to be caught in the through hole 70a even when the second moving portion 70 rotates, and thus can be idled with respect to the second moving portion 70.

The second moving unit 70 rotates when a manual operation is performed on the gripping unit 30 as described below, but even in such a case, the second moving unit 70 idles as described above, and thus the second wire unit 70 is rotated. It is possible to prevent the twisting of the wire 90, and to prevent the second wire portion 90 from coming off from the one end 181a (see FIG. 6) of the connecting lever 181 due to the twist.

The second moving portion 70 is housed in the second case portion 46 so as to be slidable in the axial direction of the second wire portion 90. The second case portion 46 includes a first storage portion 46a and a second storage portion 46b, and the second moving portion 70 is stored in the second storage portion 46b. In addition, the entire first case portion 45 in which the first moving portion 60 and the like are accommodated is accommodated in the first accommodation portion 46a.

The second case portion 46 in the state where the second moving portion 70 is accommodated is shown in FIG. 13, which will be described later. Further, sliders can be used as the above-mentioned first and second moving portions 60 and 70, but the present invention is not limited to this, and other members can be used as long as they can reciprocate in the corresponding case portion 44. May be.

The above-described first moving unit 60 and second moving unit 70 are connected as described below, and move in translation by a manual operation on the gripping unit 30, but the strokes of the first and second wire units 80 and 90 are mutually different. If they are different, the moving distances (sliding distances) of the first and second moving units 60 and 70 are also different.

Since the free-running mechanism 40 corresponds to the first and second moving units 60 and 70 having different moving distances, one of the first moving unit 60 and the second moving unit 70 is moved by a manual operation on the gripping unit 30. It is a mechanism that prevents the other from moving. Here, a case where one of the first and second moving units 60 and 70 is the “first moving unit 60” and the other is the “second moving unit 70” will be described as an example, but the present invention is not limited to this. Instead of one, one may be the “second moving unit 70” and the other may be the “first moving unit 60”.

The idling mechanism 40 includes the protrusion 61 of the first moving unit 60, the circumferential groove 71 of the second moving unit 70, the long groove 72 (not visible in FIG. 10, see FIG. 11B described later), the spiral groove 73, and the second groove. A case-side projection 47 of the case 46 (not visible in FIG. 10, see FIG. 12 described later).

The protruding portion 61 is formed on the peripheral surface of the first moving portion 60 so as to protrude in a direction substantially perpendicular to the moving direction and toward the cover 65 side. A slit 65a is opened in the cover 65 along the moving direction of the first moving unit 60, and the protrusion 61 is arranged so that the tip is exposed from the slit 65a (see FIG. 13 described later).

Next, the peripheral groove 71 of the second moving unit 70 and the like will be described with reference to FIGS. 11A and 11B. 11A is a schematic front view of the second moving unit 70, and FIG. 11B is a schematic right side view of the second moving unit 70.

As shown in FIGS. 11A and 11B, the circumferential groove 71 is formed along the circumferential direction of the second moving unit 70 at the end of the second moving unit 70 on the switching unit 180 side. In the example shown in FIG. 11A and the like, the circumferential groove 71 is formed over the entire circumference of the second moving portion 70 in the circumferential direction, but the invention is not limited to this, and the circumferential groove 71 may be formed. May be formed in the part.

Further, the circumferential groove 71 is configured to be able to be locked with the protrusion 61 of the first moving portion 60. That is, for example, the groove width of the circumferential groove 71 is set to a value with which the protrusion 61 of the first moving portion 60 can be locked.

The long groove 72 is formed so as to be continuous with the circumferential groove 71 along the longitudinal direction D of the second moving portion 70. The longitudinal direction D of the second moving unit 70 is parallel or substantially parallel to the moving direction of the second moving unit 70.

Further, the long groove 72 is configured to be engageable with the protrusion 61 of the first moving portion 60, similarly to the circumferential groove 71. That is, for example, the groove width of the long groove 72 is set to a value with which the protrusion 61 of the first moving portion 60 can be locked. Further, the length of the long groove 72 in the longitudinal direction D can be set to an arbitrary value, but may be set to a difference between strokes of the first and second wire portions 80 and 90, for example.

The spiral groove 73 is formed on the peripheral surface of the second moving unit 70. Further, a plurality of spiral grooves 73, for example, two spiral grooves 73 are formed. Note that in FIG. 11A, among the two spiral grooves 73, the spiral groove 73 formed on the back side and not visible is indicated by a broken line.

The two spiral grooves 73 may be arranged so as to be rotationally symmetric when viewed from the direction along the longitudinal direction D. In addition, here, since there are two spiral grooves 73, the spiral groove 73 has two-fold symmetry, that is, point symmetry, but is not limited to this. Further, in the above description, the number of spiral grooves 73 is two, but the number is not limited to this, and may be one or three or more.

Further, in the example shown in FIG. 11A, the spiral groove 73 is a groove of less than a half circumference along the circumferential direction of the second moving portion 70, but this is merely an example and is not limited. It may be a groove.

FIG. 12 is a schematic cross-sectional view for explaining the operation of the second moving unit 70 and the like including the idle running mechanism 40, and is also a view for explaining the case-side protrusion 47 of the second case unit 46. is there.

As shown in the left diagram of FIG. 12, the case-side protruding portion 47 is formed on the portion of the second case portion 46 in which the second moving portion 70 is accommodated, that is, on the inner peripheral surface of the second accommodation portion 46b. .. The case-side protruding portion 47 projects from the inner peripheral surface of the second accommodating portion 46b toward the second moving portion 70 that is accommodated, more precisely, toward the spiral groove 73 of the second moving portion 70. Is formed.

The position where the case-side protrusion 47 is formed on the inner peripheral surface of the second accommodating portion 46b can be arbitrarily set. However, in the example shown in FIG. 12, the inside of the second accommodating portion 46b is seen in a side view. It is formed near the center of the peripheral surface.

The case-side protrusion 47 can be engaged with the spiral groove 73 of the second moving portion 70, and is formed in the same plurality (two here) as the spiral groove 73.

That is, in the flush toilet 10 according to the present embodiment, a plurality of spiral grooves 73 and case-side protrusions 47 are formed. Thereby, in the present embodiment, the second moving portion 70 is supported at a plurality of locations within the second housing portion 46b of the second case portion 46, and thus rattling can be suppressed, The second moving unit 70 can be stably stored in the second storage unit 46b.

Alternatively, the two case-side protrusions 47 may be formed at positions facing each other in the second housing portion 46b of the second case portion 46. As a result, the second moving portion 70 is supported from both sides by the case-side protrusion 47 in the second housing portion 46b, so rattling can be effectively suppressed, and the second moving portion 70 can be moved. The portion 70 can be stably stored in the second storage portion 46b.

<7. Operation of first and second moving parts>
Next, the operation of the first and second moving units 60 and 70 including the idling mechanism 40 configured as described above will be described with reference to FIG. The left diagram of FIG. 12 shows a state before the operating unit 20 is manually operated, and the center view and the right diagram of FIG. 12 are the operations of the first and second moving units 60 and 70 when the operating unit 20 is manually operated. Shows the transition of. Further, in FIG. 12, for convenience of understanding, the first moving unit 60, the first wire unit 80, and the gripping unit 30 are shown by broken lines, and the second moving unit 70 and the like are shown by solid lines.

As shown in the left diagram of FIG. 12, in the state before the operating portion 20 is manually operated, the protrusion 61 of the first moving portion 60 and the circumferential groove 71 of the second moving portion 70 are locked, and The case side protrusion 47 and the spiral groove 73 are locked. The long groove 72 is at a position displaced from the protrusion 61, that is, at a position displaced by about 90 degrees in the circumferential direction in the example shown in the left diagram of FIG.

When the user performs a manual operation such as pulling on the grip portion 30 at the time of power failure, the protrusion 61 and the circumferential groove 71 are locked, so that as shown in the center view of FIG. The moving unit 60 and the second moving unit 70 make a translational movement downward in the plane of the drawing.

With this translational movement, the first and second wire portions 80 and 90 are also pulled and moved. Therefore, the opening/closing valve 240 connected to the first wire portion 80 starts to rotate. Similarly, the switching unit 180 connected to the second wire unit 90 also operates to start supplying water to the bowl unit 110.

At this time, in the second moving portion 70, since the spiral groove 73 and the case-side protruding portion 47 are locked, the second moving portion 70 rotates about the longitudinal direction D as it moves downward. Further, the long groove 72 approaches the protrusion 61 with the rotational movement. In the example shown in the central view of FIG. 12, the long groove 72 is located at a position displaced by about 45 degrees in the circumferential direction with respect to the protrusion 61.

When the user further pulls on the grip portion 30, the protrusion 61 and the circumferential groove 71 are locked, so that the first moving portion 60 and the second moving portion 70 further move in translation, and then the drawing is performed. As shown in the right diagram of FIG. 12, the second moving portion 70 translates to the end portion of the second case portion 46.

At this time, the operation of the switching unit 180, which is connected to the second moving unit 70 via the second wire unit 90, has been completed, that is, the water has been supplied to the bowl unit 110, and no more. No manual operation is required.

On the other hand, since the strokes of the first and second wire portions 80 and 90 are different, the opening/closing valve 240 connected to the first moving portion 60 via the first wire portion 80 still closes the drainage channel 305. It cannot be done.

Therefore, in the present embodiment, when the second moving portion 70 moves in translation to the end of the second case portion 46, the protrusion 61 of the first moving portion 60 and the long groove 72 of the second moving portion 70 are locked. , Only the first moving unit 60 is moved to run idle, and only the first wire unit 80 is operated.

Specifically, the long groove 72 of the second moving portion 70 further approaches the protrusion 61 with the rotational movement of the second moving portion 70, and when the second moving portion 70 moves in translation to the end of the second case portion 46. The position where the protrusion 61 can be locked.

When the user further pulls the grip portion 30, the protrusion 61 of the first moving portion 60, which has been locked in the circumferential groove 71, is locked in the long groove 72 and moves in the long groove 72, whereby the first The second moving unit 70 is not moved while moving only the moving unit 60, that is, the first moving unit 60 is idle. Note that, in the right diagram of FIG. 12, the first moving unit 60 and the like that are run idle are shown by imaginary lines.

Accordingly, the opening/closing valve 240 connected to the first moving unit 60 via the first wire unit 80 is further rotated, so that the drainage channel 305 can be surely closed, and therefore, FIGS. A toilet wash as shown can be performed.

As described above, in the operation unit 20 according to the present embodiment, the stroke of the first wire unit 80 that operates the opening/closing valve 240 and the second operation unit that operates the switching unit 180 are provided by including the idle running mechanism 40 described above. Even if the stroke of the wire portion 90 is different, the opening/closing valve 240 and the switching portion 180 can be appropriately operated. Moreover, the idle running mechanism 40 can also be made into a simple structure by making it above.

<8. Assembling the operation part to the toilet body>
Next, assembling (construction) of the operation unit 20 configured as described above to the toilet body 100 will be described with reference to FIG. FIG. 13 is a schematic perspective view for explaining the assembling of the operation unit 20 to the toilet body 100.

As shown in FIG. 13, the operation unit 20 is configured to be divided into a portion connected to the opening/closing valve 240 (see FIG. 3) and a portion connected to the switching unit 180 (see FIG. 3). In FIG. 13, a portion connected to the opening/closing valve 240 (hereinafter referred to as “opening/closing valve side portion”) is surrounded by a broken line and denoted by a reference numeral 20a, and a portion connected to the switching unit 180 (hereinafter referred to as “switching portion”). The side part") is surrounded by a broken line and denoted by reference numeral 20b.

In the operation unit 20, the opening/closing valve side portion 20a includes, for example, the first wire portion 80, the first moving portion 60 (see FIG. 10), the first case portion 45, the cover 65, the grip portion 30, and the like. The switching portion side portion 20b includes the second wire portion 90, the second moving portion 70, the second case portion 46, and the like.

The switching unit side portion 20b is provided on the toilet body 100, specifically, is assembled and fixed to the toilet body 100 in advance at a factory or the like. Further, the switching portion side portion 20b is provided in the toilet body 100, for example, in a state where the opening of the first housing portion 46a of the second case portion 46 is exposed.

On the other hand, the on-off valve side portion 20a is configured to be attachable to and detachable from the switching portion side portion 20b provided on the toilet body 100. As a result, in the flush toilet 10 according to the present embodiment, it is possible to improve the ease of construction of the operation unit 20, the drain socket 200, and the like.

That is, the drain socket 200 including the opening/closing valve 240 is assembled by a builder in a toilet room where the flush toilet 10 is actually installed. Therefore, for example, when the operation part 20 in which the switching part side part 20b and the on-off valve side part 20a are integrated is previously fixed to the toilet body 100, the movable range of the drain socket 200 is limited by the operation part 20, so It may be difficult to assemble the socket 200 and the like.

In the present embodiment, since the operating portion 20 is configured to be split as described above, it is possible to assemble the on-off valve side portion 20a to the switching portion side portion 20b after the drain socket 200 is assembled. Therefore, it is possible to improve the ease of constructing the operation unit 20, the drain socket 200, and the like.

As described above, the flush toilet 10 according to the embodiment includes the opening/closing valve 240, the switching unit 180, and the operation unit 20. The on-off valve 240 is provided in the connection flow passage 211 that connects the bowl 110 and the drain pipe 300, and opens and closes the connection flow passage 211. The switching unit 180 switches between water supply and water stop for the bowl unit 110. The operation unit 20 is connected to the on-off valve 240 and the switching unit 180, respectively, and operates the on-off valve 240 and the switching unit 180 together by a user's manual operation. This allows the flush toilet 10 to be flushed without being limited in the number of flushes.

The switching unit 180 also includes a cam unit 183 and a poppet valve 184. The cam portion 183 rotates according to the manual operation of the operation portion 20. The poppet valve 184 operates when coming into contact with the rotated cam portion 183, and switches to water supply to the bowl portion 110. This allows the switching unit 180 to have a simple configuration.

Further, as described above, the flush toilet 10 according to the embodiment includes the opening/closing valve 240, the switching unit 180, and the operation unit 20. The on-off valve 240 is provided in the connection flow passage 211 that connects the bowl 110 and the drain pipe 300, and opens and closes the connection flow passage 211. The switching unit 180 switches between water supply and water stop for the bowl unit 110. The operation unit 20 is connected to the on-off valve 240 and the switching unit 180, respectively, and operates the on-off valve 240 and the switching unit 180 together by a user's manual operation. The operation unit 20 also includes a grip unit 30, first and second moving units 60 and 70, a first wire unit 80, a second wire unit 90, and a free running mechanism 40. The grip part 30 receives a manual operation of the user. The first and second moving parts 60 and 70 are connected to the grip part 30 and can be moved by a manual operation on the grip part 30. The first wire unit 80 connects the first moving unit 60 and the opening/closing valve 240 and operates the opening/closing valve 240. The second wire unit 90 connects the second moving unit 70 and the switching unit 180, and operates the switching unit 180 with a stroke different from that of the first wire unit 80. The idling mechanism 40 moves one of the first moving unit 60 and the second moving unit 70 by a manual operation on the grip unit 30. As a result, in the flush toilet 10, even if the stroke of the first wire portion 80 that operates the opening/closing valve 240 and the stroke of the second wire portion 90 that operates the switching portion 180 are different, switching to the opening/closing valve 240 is performed. The section 180 can be operated appropriately.

<9. Modified example of idle running mechanism>
In the above-described embodiment, the idling mechanism 40 is configured as shown in FIG. 10 and the like, but this is an example and is not limited, and one of the first moving unit 60 and the second moving unit 70 is used. Any mechanism may be used as long as it can move the.

Next, a modified example of the idling mechanism 40 will be described with reference to FIG. FIG. 14: is a schematic cross section which shows operation|movement of the 1st, 2nd moving parts 60 and 70 provided with the idling mechanism 400 which concerns on a modification.

Note that the left diagram of FIG. 14 shows a state before the operating unit 20 is manually operated, and the right diagram of the operation of the first and second moving units 60 and 70 when the operating unit 20 is manually operated. It shows the transition. Further, in the following description, the same parts as those already described are denoted by the same reference numerals as those already described, and the duplicated description will be omitted.

As shown in the left diagram of FIG. 14, in the modified example, both the first moving portion 60 and the second moving portion 70 are slidable in the axial direction of the first and second wire portions 80 and 90 in the case portion 44. Be accommodated. Further, the first moving unit 60 and the second moving unit 70 are accommodated adjacent to each other in the case unit 44.

The idle running mechanism 400 according to the modified example includes the locking claw 75 and the protrusion 76 of the second moving portion 70, the fitting hole 48 of the case portion 44, and the spring 49.

The locking claw 75 is formed so as to project from the side surface of the second moving unit 70 toward the first moving unit 60 near the end of the second moving unit 70 on the side opposite to the end on the switching unit 180 side. To be done. Then, in the state before the grip portion 30 of the operation portion 20 is manually operated, the end of the first moving portion 60 is locked to the locking claw 75.

The protruding portion 76 is formed on the side surface of the second moving portion 70 on the side facing the inner peripheral surface of the case portion 44, and is formed so as to protrude toward the case portion 44 side. Then, in the state before the grip portion 30 of the operation portion 20 is manually operated, the protrusion portion 76 is arranged such that the tip thereof abuts on the inner peripheral surface of the case portion 44.

The fitting hole 48 of the case portion 44 is formed on the inner peripheral surface of the case portion 44 and can be fitted to the protrusion portion 76. Note that, as shown in the left diagram of FIG. 14, the protrusion 76 is in a position where it is not fitted into the fitting hole 48 before the grip portion 30 is manually operated.

The spring 49 is arranged in the fitting hole 48, and when the protrusion 76 enters the fitting hole 48 and is fitted therein, applies a biasing force to the protrusion 76 in a direction of pushing it out of the fitting hole 48.

In the modified example, when the user performs a manual operation such as pulling on the grip portion 30 during a power failure, the locking claw 75 and the end portion of the first moving portion 60 are engaged, As indicated by an arrow in the left diagram of 14, the first moving unit 60 and the second moving unit 70 move in translation downward in the plane of the drawing. At this time, the protruding portion 76 slides on the inner peripheral surface of the case portion 44.

With this translational movement, the first and second wire portions 80 and 90 are also pulled and moved. Therefore, the opening/closing valve 240 connected to the first wire portion 80 starts to rotate. Similarly, the switching unit 180 connected to the second wire unit 90 also operates to start supplying water to the bowl unit 110.

When the user further pulls the grip portion 30, the protrusion 76 enters the fitting hole 48 and is fitted therein, as shown in the right diagram of FIG. 14. As a result, the locking between the locking claw 75 and the end of the first moving section 60 is released.

At this time, the operation of the switching unit 180, which is connected to the second moving unit 70 via the second wire unit 90, has been completed, that is, the water has been supplied to the bowl unit 110, and no more. No manual operation is required.

On the other hand, since the strokes of the first and second wire portions 80 and 90 are different, the opening/closing valve 240 connected to the first moving portion 60 via the first wire portion 80 still closes the drainage channel 305. It cannot be done.

Therefore, in the modified example, only the first moving portion 60, which has been disengaged from the second moving portion 70, is moved to idle, and only the first wire portion 80 is operated. It should be noted that in the right diagram of FIG. 14, the first moving unit 60 and the like that are idled are shown by imaginary lines.

At this time, the second moving portion 70 fitted in the fitting hole 48 is biased by the spring 49 so as to be pushed out from the fitting hole 48, but the tip of the locking claw 75 is the first moving portion. Since it is in contact with 60, it is not pushed out from the fitting hole 48.

Accordingly, the opening/closing valve 240 connected to the first moving unit 60 via the first wire unit 80 is further rotated, so that the drainage channel 305 can be surely closed, and therefore, FIGS. A toilet wash as shown can be performed.

It should be noted that when the user manually operates the grip portion 30, the first moving portion 60 returns to the original position by receiving the biasing force of the spring (not shown) provided on the rotating shaft 243 of the opening/closing valve 240. During the return, the contact between the tip of the locking claw 75 and the first moving portion 60 is released, so that the second moving portion 70 is pushed out from the fitting hole 48 by the spring 49. Then, the locking claw 75 and the end portion of the first moving portion 60 are in an initial engaged state (see the left diagram of FIG. 14).

Thus, in the flush toilet 10 according to the modified example, even if the stroke of the first wire portion 80 and the stroke of the second wire portion 90 are different, the on-off valve 240 and the switching portion 180 operate properly. Can be made.

In the above-described embodiment, the flush toilet 10 may also include an emergency power source such as a battery. Since the flush toilet 10 according to the present embodiment can be washed manually by a manual operation, even if the battery of the emergency power supply runs out, for example, even if the battery of the emergency power supply runs out You can wash the toilet with.

Further, in the above, the on-off valve 240 and the switching unit 180 are operated by using the first and second wire portions 80, 90, but the invention is not limited to this, and a rotatable handle or the like is used, for example. Alternatively, the on-off valve 240 and the switching unit 180 may be operated. Further, in the above description, the coil springs are used as the springs 49, 62, 184d, but this is an example and is not limited. For example, a leaf spring, a disc spring, or the like is elastically deformed to generate an urging force. Other types of elastic members may be used as long as they can do so.

Further effects and modifications can be easily derived by those skilled in the art. As such, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept defined by the appended claims and their equivalents.

10 flush toilet 20 operation part 20a opening/closing valve side part 20b switching part side part 30 gripping part 40,400 free running mechanism 44 case part 47 case side protrusion 50 moving part 60 first moving part 61 protruding part 70 second moving part 71 circumferential groove 72 long groove 73 spiral groove 80 first wire portion 90 second wire portion 100 toilet body 110 bowl portion 180 switching portion 183 cam portion 184 poppet valve 240 opening/closing valve 310 diaphragm 311 pressure chamber 312 pilot passage

Claims (5)

An opening/closing valve that is provided in a drainage path connecting the bowl portion and the drainage pipe and opens and closes the drainage path,
A switching unit that switches between water supply and water stop for the bowl unit,
An operating unit that is connected to the on-off valve and the switching unit, and that operates the on-off valve and the switching unit together by a user's manual operation,
The operation unit is
A manual reception part that receives the manual operation of the user,
First and second moving units that are connected to the manual receiving unit and are movable by a manual operation on the manual receiving unit;
A first wire part for connecting the first moving part and the on-off valve and operating the on-off valve;
A second wire part that connects the second moving part and the switching part and operates the switching part with a stroke different from that of the first wire part;
After the movement of one of the first moving portion and the second moving portion is completed by a manual operation on the manual receiving portion , the other is further moved, and then the idle running mechanism for ending the movement of the other is provided. A flush toilet that is equipped with. The second moving portion is a cylindrical member,
The free running mechanism,
A protrusion formed on the first moving portion,
A circumferential groove formed along the circumferential direction of the second moving portion and capable of engaging with the protrusion,
A long groove that is formed so as to be continuous with the circumferential groove along the longitudinal direction of the second moving portion and that can be locked with the protrusion;
A spiral groove formed on the peripheral surface of the second moving portion,
A case-side protrusion formed on a case portion that accommodates the second moving portion and capable of engaging with the spiral groove, and the protrusion portion of the first moving portion by a manual operation on the manual receiving portion. While the peripheral groove of the second moving portion is locked, the first moving portion and the second moving portion are translated and the first and second wire portions are operated, while the second moving portion is moved. When the spiral groove and the case-side protrusion are locked to rotate the second moving portion and then the second moving portion is translated to the end of the case portion, the first moving portion is moved. The first wire portion is operated by moving only the first moving portion to idle by locking the protruding portion and the long groove of the second moving portion. 1. A flush toilet according to 1. The spiral groove and the case side protrusion are
A plurality of flush toilets according to claim 2, wherein a plurality of flush toilets are formed. The plurality of case side protrusions are
The flush toilet according to claim 3, wherein the flush toilets are formed at positions facing each other in the case portion. The second wire portion is
The flush toilet according to any one of claims 1 to 4, wherein the flush toilet is connected to the second moving portion so as to be able to rotate.

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