JP7056292B2 - Washing toilet - Google Patents

Description

The disclosed embodiment relates to a flush toilet.

Conventionally, there is known a flush toilet that discharges filth from the bowl portion by manual operation in the event of a power failure (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2013-227852

However, when the filth is discharged by manual operation at the time of a power failure, there is a problem that the operation becomes complicated because a plurality of steps are manually performed for one cleaning operation.

One aspect of the embodiment is to provide a flush toilet that facilitates manual cleaning operations in the event of a power outage.

The flush toilet according to one embodiment includes a toilet body that receives filth, and a power failure cleaning mechanism that executes cleaning during a power failure in a plurality of steps and discharges the filth from the toilet body in the event of a power failure. The power failure cleaning mechanism is characterized in that the plurality of steps are automatically executed by manually operating the operation lever once from the initial position to a predetermined position.

As a result, the flush toilet can discharge filth in a plurality of steps by one manual operation in the event of a power failure. Therefore, the flush toilet can easily perform the cleaning operation in the event of a power failure without causing the user to perform complicated operations.

Further, the power failure cleaning mechanism is characterized in that the operation lever is operated to the predetermined position and the plurality of steps are started after the operation lever is released.

As a result, the flush toilet can suppress the change in the flow rate of the wash water due to the operation of the user, and can perform the same wash as in the normal state.

Further, the toilet body is provided with a bowl portion that receives filth and a rim spout is formed, and a trap portion that is connected to the bowl portion to discharge the filth and a zet spout is formed. The time-cleaning mechanism includes a first step of discharging the washing water for washing the bowl portion from the rim spout, and a second step of starting the washing water from the Zet spout after the start of the first step. The operation lever is operated once in the event of a power failure in the third step of discharging the washing water from the rim spout after the start of the second step and starting the formation of the sealing water in the trap portion. It is characterized by being automatically executed by.

As a result, the flush toilet can automatically execute the cleaning step, the draining step, and the water sealing step by manually operating the operation lever once in the event of a power failure. Therefore, the flush toilet can perform the same cleaning as usual in the event of a power failure without complicated operations.

Further, the power failure cleaning mechanism measures the flow rate of the cleaning water discharged from the rim spout and the flow rate of the cleaning water discharged from the Zet spout while the operating lever returns from the predetermined position to the initial position. It is characterized in that the plurality of steps are automatically executed under control.

As a result, the flush toilet can discharge the filth even in the event of a power failure in the same manner as in the normal case.

Further, the power failure cleaning mechanism is characterized by including an urging portion for urging the operating lever in a direction of returning from the predetermined position to the initial position.

As a result, the flush toilet can automatically return the operation lever to the initial position.

Further, the power failure cleaning mechanism includes an operating unit that operates a plurality of switches according to the plurality of steps when the operating lever returns from the predetermined position to the initial position, and the operating lever moves from the initial position to the initial position. It is characterized by including a retracting portion for preventing the plurality of switches from operating by retracting the operating portion when the operation is performed to a predetermined position.

Thereby, the flush toilet can prevent each switch from being pressed when the operation lever is rotated from the initial position to the predetermined position.

Further, the operating portion includes a plurality of switch pushing portions that rotate together with the operating lever and operate the plurality of switches according to the plurality of steps by pressing the plurality of switches as the rotation occurs, and the retracting portion is provided. When the operation lever is operated from the initial position to the predetermined position, the unit pushes up the plurality of switch pushing portions to create a gap between the plurality of switches and the plurality of switch pushing portions. It is characterized by letting it.

Thereby, the flush toilet can prevent each switch from being pressed when the operation lever is rotated from the initial position to the predetermined position.

Further, the operating portion can rotate about a rotating shaft eccentric from the rotating shaft of the operating lever, and a plurality of switch pushing portions for operating the plurality of switches according to the plurality of steps and the operating lever When returning from the predetermined position to the initial position, the retracting portion includes a regulating portion that regulates the relative rotation of the switch pushing portion with respect to the rotation of the operating lever, and the retracting portion is such that the operating lever moves from the initial position to the initial position. When the operation is performed to a predetermined position, the plurality of switch pressing portions are retracted with respect to the plurality of switches by rotating the plurality of switch pressing portions relative to the rotation of the operating lever. It is a feature.

Thereby, the flush toilet can prevent each switch from being pressed when the operation lever is rotated from the initial position to the predetermined position.

According to one aspect of the embodiment, it is possible to facilitate a manual cleaning operation in the event of a power failure.

FIG. 1 is a schematic side sectional view showing a flush toilet bowl. FIG. 2 is a schematic perspective view of the toilet bowl body according to the first embodiment. FIG. 3 is a perspective view of the cleaning mechanism at the time of a power failure according to the first embodiment. FIG. 4 is a left side view of the power failure cleaning mechanism according to the first embodiment. FIG. 5 is a right side view of the power failure cleaning mechanism according to the first embodiment. FIG. 6 is a front view of the power failure cleaning mechanism according to the first embodiment. FIG. 7 is an exploded perspective view (No. 1) showing a part of the power failure cleaning mechanism according to the first embodiment. FIG. 8 is an exploded perspective view (No. 2) showing a part of the power failure cleaning mechanism according to the first embodiment. FIG. 9 is a rear view (No. 1) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 10 is a rear view (No. 2) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 11 is an oblique rear perspective view (No. 1) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 12 is a rear view (No. 3) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 13 is a diagram showing a state in which the plate shifting portion pushes up the plate pushing portion toward the front side. FIG. 14 is an oblique rear perspective view (No. 2) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 15 is a rear view (No. 4) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 16 is a diagram (No. 1) showing a state in which the first rim switch pushing portion pushes the rim switch. FIG. 17A is a diagram (No. 2) showing a state in which the first rim switch pushing portion pushes the rim switch. FIG. 17B is a diagram showing a state in which the Zet switch pushing portion presses the Zet switch. FIG. 17C is a diagram showing a state in which the second rim switch pushing portion pushes the rim switch. FIG. 18 is a rear view (No. 5) of a part of the power failure cleaning mechanism according to the first embodiment. FIG. 19 is a schematic perspective view of the toilet bowl body according to the second embodiment. FIG. 20 is a perspective view (No. 1) of the cleaning mechanism at the time of a power failure according to the second embodiment. FIG. 21 is a perspective view (No. 2) of the cleaning mechanism at the time of a power failure according to the second embodiment. FIG. 22 is an exploded perspective view of the cleaning mechanism at the time of a power failure according to the second embodiment. FIG. 23 is a front view of the power failure cleaning mechanism according to the second embodiment. FIG. 24A is a cross-sectional view taken along the line AA of FIG. 23 (No. 1). FIG. 24B is a cross-sectional view taken along the line BB of FIG. 23 (No. 1). FIG. 24C is a sectional view taken along the line CC of FIG. 23 (No. 1). 25A is a cross-sectional view taken along the line AA of FIG. 23 (No. 2). 25B is a sectional view taken along the line BB of FIG. 23 (No. 2). 25C is a sectional view taken along the line CC of FIG. 23 (No. 2). FIG. 26A is a cross-sectional view taken along the line AA of FIG. 23 (No. 3). FIG. 26B is a cross-sectional view taken along the line BB of FIG. 23 (No. 3). FIG. 26C is a sectional view taken along the line CC of FIG. 23 (No. 3). 27A is a sectional view taken along the line AA of FIG. 23 (No. 4). 27B is a sectional view taken along the line BB of FIG. 23 (No. 4). 27C is a cross-sectional view taken along the line CC of FIG. 23 (No. 4). 28A is a cross-sectional view taken along the line AA of FIG. 23 (No. 5). 28B is a sectional view taken along the line BB of FIG. 23 (No. 5). 28C is a sectional view taken along the line CC of FIG. 23 (No. 5). 29A is a sectional view taken along the line AA of FIG. 23 (No. 6). 29B is a sectional view taken along the line BB of FIG. 23 (No. 6). 29C is a sectional view taken along the line CC of FIG. 23 (No. 6). FIG. 30A is a cross-sectional view taken along the line AA of FIG. 23 (No. 7). FIG. 30B is a cross-sectional view taken along the line BB of FIG. 23 (No. 7). FIG. 30C is a sectional view taken along the line CC of FIG. 23 (No. 7). 31A is a cross-sectional view taken along the line AA of FIG. 23 (No. 8). 31B is a sectional view taken along the line BB of FIG. 23 (No. 8). 31C is a sectional view taken along the line CC of FIG. 23 (No. 8). 32A is a sectional view taken along the line AA of FIG. 23 (No. 9). 32B is a sectional view taken along the line BB of FIG. 23 (No. 9). 32C is a sectional view taken along the line CC of FIG. 23 (No. 9).

Hereinafter, embodiments of the flush toilet bowl 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 shown below.

First, the overall configuration of the flush toilet bowl 1 will be described with reference to FIG. FIG. 1 is a schematic side sectional view showing a flush toilet bowl 1.

In FIG. 1, for convenience of explanation, a three-dimensional Cartesian coordinate system including a Z-axis whose positive direction is vertically upward is shown. The Cartesian coordinate system may be shown in other figures as well.

In the Cartesian coordinate system, the positive direction of the X axis is defined as the "right side surface", the negative direction of the X axis is defined as the "left side surface", the positive direction of the X axis is defined as the right side, and the negative direction of the X axis is defined as the left side. are doing. Further, in the Cartesian coordinate system, the positive direction of the Y-axis is defined as "front", the positive direction of the Y-axis is defined as the front side (front), and the negative direction of the Y-axis is defined as the rear side (rear). Further, in the Cartesian coordinate system, the positive direction of the Z axis is defined as the upper side (upper side), and the negative direction of the Z axis is defined as the lower side (lower side). Therefore, in the following description, the X-axis direction may be referred to as the left-right direction, the Y-axis direction may be referred to as the front-back direction, and the Z-axis direction may be referred to as the up-down direction.

As shown in FIG. 1, the flush toilet bowl 1 includes a toilet bowl main body 2 and a wash water tank device 3 for storing wash water used in the toilet bowl main body 2. The toilet body 2 is installed on the floor of the toilet room, and the washing water tank device 3 is installed on the upper part of the toilet body 2. The toilet body 2 is not limited to the floor-standing type, but may be a wall-mounted type. Further, the washing water tank device 3 may be installed at a place away from the toilet bowl main body 2.

The toilet body 2 has a bowl portion 21 that receives filth, a headrace 22 that guides the wash water supplied from the wash water tank device 3 to the bowl portion 21, and an inlet connected to the lower portion of the bowl portion 21, and the inside of the bowl portion 21. It is provided with a drain trap pipeline 23 for discharging the filth of the above to a drain pipe (not shown). The drain trap pipeline 23 constitutes a trap portion.

The bowl portion 21 has a Zet spout port 24 for discharging wash water toward the inlet of the drain trap pipeline 23, and a swirling flow of wash water is formed in the bowl portion 21 by discharging wash water from the rim portion 25. A rim spout 26 is formed. The headrace 22 guides the wash water supplied from the wash water tank device 3 to the Zet spout 24 and the rim spout 26.

The drain trap pipeline 23 includes an ascending path portion extending upward from the inlet thereof and a descending path portion extending downward from the end of the ascending path portion and connected to the drainage pipe. Washing water for forming a water-sealed state is stored from the bowl portion 21 to the ascending path portion of the drain trap pipeline 23. In the following, the washing water stored in the ascending path portion of the bowl portion 21 and the drain trap pipeline 23 will be referred to as “reservoir water”.

When the water-washing toilet bowl 1 discharges filth, it first supplies rim water that discharges washing water from the rim spout 26, and while cleaning the bowl portion 21, the filth is collected near the center of the bowl portion 21. Perform the process. Next, the flush toilet 1 discharges the wash water from the Zet spout 24 to efficiently generate the siphon action, and at the same time, removes the filth in the bowl portion 21 by utilizing the siphon action. Perform the discharge process of pulling in and discharging. Next, the flush urinal 1 performs a rim water supply that discharges wash water from the rim spout 26, and performs a water sealing step so that the pooled water level becomes a predetermined water level. That is, in the water sealing step, water sealing by the washing water is formed.

As described above, the flush toilet bowl 1 discharges filth by executing a plurality of steps. In a flush toilet, the flow rate of wash water in a plurality of steps and a plurality of steps is usually controlled by a controller (not shown). In the plurality of steps, the next step may be started before the previous step is completed.

The flush toilet 1 has a power failure cleaning mechanism for discharging filth in the event of a power failure because the controller cannot execute a plurality of steps to discharge the filth in the event of a power failure. In the conventional water-washing toilet, in the event of a power failure, for example, the user operates the operation lever while switching the operation direction of the operation lever (hereinafter referred to as "operation lever") during a power failure, thereby performing the above-mentioned water supply process. The discharge process and the water sealing process can be executed in the same manner as in normal times.

However, in the conventional flush toilet, the user operates the operation lever a plurality of times at predetermined intervals to execute a plurality of normal processes in the event of a power failure. For example, in a conventional flush toilet, the operation lever is rotated in one direction from the initial position for a first predetermined time to execute a water supply step, and then the operation lever moves in the other direction opposite to one direction. 2 The drainage process is executed by rotating for a predetermined time. Then, in the conventional flush toilet, after the drainage process, the operation lever is rotated in one direction for a third predetermined time to execute the water sealing process.

In this way, in order for the user to manually operate the operation lever for cleaning by a plurality of steps in the normal time, the user must adjust the operation direction and the operation time of the operation lever in the normal time. It was difficult to perform the same cleaning as above.

The flush toilet bowl 1 according to the present embodiment facilitates a cleaning operation in the event of a power failure. Hereinafter, the flush toilet bowl 1 according to the present embodiment will be described in detail.

(First Embodiment)
The flush toilet bowl 1 according to the first embodiment will be described with reference to FIGS. 2 to 8. FIG. 2 is a schematic perspective view of the toilet bowl main body 2 according to the first embodiment. FIG. 3 is a perspective view of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 4 is a left side view of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 5 is a right side view of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 6 is a front view of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 7 is an exploded perspective view (No. 1) showing a part of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 8 is an exploded perspective view (No. 2) showing a part of the power failure cleaning mechanism 4 according to the first embodiment. 2 to 8 show an initial state in which the cleaning mechanism 4 at the time of a power failure is not operated by the user.

Further, in the following, in a plate-shaped member or the like, the left side surface, that is, the front surface in the left side view may be described as the front surface, and the surface opposite to the front surface may be described as the back surface. Further, the negative direction of the X-axis may be described as the front side, and the positive direction of the X-axis may be described as the back side.

The flush toilet bowl 1 includes a toilet bowl main body 2, a flush water tank device 3 (see FIG. 1), and a power failure cleaning mechanism 4. The toilet bowl main body 2 and the washing water tank device 3 have the same configurations as those in FIG. 1, and detailed description thereof will be omitted here.

The power failure cleaning mechanism 4 is housed in a case 5 provided on the left rear side of the toilet bowl main body 2. In the power failure cleaning mechanism 4, the handle portion 45 of the operating lever 40 projects from the arcuate hole 5a formed in the case 5 to the outside of the case 5 so that the user can operate the cleaning mechanism 4. The cleaning mechanism 4 at the time of a power failure may be housed in the toilet bowl main body 2 and covered with a lid or the like. In this case, in the event of a power failure, the operation lever 40 can be operated by opening the lid portion.

The power failure cleaning mechanism 4 automatically executes a plurality of steps when the operation lever 40 is rotated from the initial position to the operation start position (predetermined position) by the user and the operation lever 40 is released. The operation start position is a preset position, for example, a position where the operation lever 40 is rotated 90 degrees from the initial position. The operation start position may be provided with a margin when starting a plurality of processes.

The power failure cleaning mechanism 4 includes a support unit 10, a rotating unit 11, a plate shifting unit 12, a switch unit 13, and a deceleration unit 14.

The support portion 10 is formed in a U shape when viewed from above, and rotatably supports the rotating portion 11. The support portion 10 includes a first support portion 15, a second support portion 16, and a connection portion 17. The first support portion 15 is formed in a plate shape. The first support portion 15 includes a circular portion 30, a first flange 31 extending rearward from the peripheral edge of the circular portion 30, and a second flange 32 extending diagonally forward and upward from the peripheral edge of the circular portion 30.

The circular portion 30 is formed in a circular shape about the rotation axis of the rotating portion 11 extending in the left-right direction. The circular portion 30 is formed with a hole 30a that is coaxial with the rotating shaft and into which a screw 33 that serves as a shaft portion of the rotating portion 11 is inserted. Further, the circular portion 30 is formed with a hole 30b having an arc shape centered on the rotation axis and into which the arm 59 of the plate pushing portion 42 is inserted. Further, on the surface of the circular portion 30, a sliding groove 30c on which the sliding portion 59a provided at the tip of the arm 59 can slide is formed between the holes 30a and the holes 30b. The sliding groove 30c is coaxial with the rotation axis and is formed in an annular shape.

Further, on the back surface of the circular portion 30, a protruding portion 30d projecting toward the back side is formed. The protrusion 30d is formed around the hole 30a. The protruding portion 30d sandwiches the spiral spring 47 together with the operating lever 40. Further, on the back surface of the circular portion 30, a locking portion 30e is formed which projects toward the back side and locks one end of the spiral spring 47.

The second support portion 16 is formed in a plate shape. The second support portion 16 is arranged on the back side of the first support portion 15 and is formed so as to face the first support portion 15. A plate shifting portion 12 is rotatably attached to the surface of the second supporting portion 16.

Further, on the back surface of the second support portion 16, a holding frame 16a that projects toward the back side and holds the switch portion 13 is formed. The holding frame 16a is formed according to the outer shape of the switch portion 13, and is formed, for example, in a rectangular shape.

The second support portion 16 is formed with a hole 16b into which the rim switch 13a of the switch portion 13 is inserted and a hole 16c into which the zet switch 13b is inserted. The holes 16b and 16c are formed side by side in the front-rear direction. Further, the second support portion 16 is formed with a hole 16d into which the mounting portion 68 of the plate shifting portion 12 is inserted.

The connecting portion 17 is formed along the left-right direction, and connects the first support portion 15 and the second support portion 16. The connection portion 17 includes a first connection portion 17a that connects the upper end of the first flange 31 of the first support portion 15 and the upper end of the second support portion 16, the lower end of the first flange 31, and the second support portion 16. It is provided with a second connection portion 17b for connecting to the lower end of the. The second connecting portion 17b is formed with a stopper 17c that projects upward. The stopper 17c regulates the rotation of the plate shifting portion 12.

The rotating portion 11 includes an operating lever 40, a push plate 41, and a plate pushing portion 42. Most of the rotating portion 11 is arranged between the first support portion 15 and the second support portion 16 of the support portion 10.

The operating lever 40 is formed in a plate shape. The operating lever 40 includes a circular portion 44 and a handle portion 45 extending downward from the peripheral edge of the circular portion 44. The operating lever 40 is attached so as to be rotatable with respect to the first support portion 15 by means of a screw 33, a nut 34, or the like.

A gear 44a is formed on the front peripheral edge of the circular portion 44. The gear 44a meshes with the first gear 14a of the reduction gear 14. Further, on the surface of the circular portion 44, a locking portion 44b is formed which projects toward the front side and locks the other end of the spiral spring 47.

The circular portion 44 is formed with a hole 44c into which the screw 33 is inserted and a hole 44d to 44f into which the pins 50a to 50c of the push plate 41 are inserted. Further, holes 44g to 44i into which one ends of the compression coil springs 54a, 54b, 61 are inserted are formed in the circular portion 44, and one ends of the compression coil springs 54a, 54b, 61 are locked.

A spiral spring 47 sandwiched between the pair of spring holding plates 46a and 46b is arranged between the circular portion 44 and the protruding portion 30d of the first support portion 15. The spiral spring 47 is operated from the initial position by rotating the operating lever 40 by, for example, 90 degrees to the operation starting position, and when the operating lever 40 is released, the rotating portion 11 such as the operating lever 40 returns to the initial position. To generate an urging force. The spiral spring 47 constitutes an urging portion.

The handle portion 45 is formed in a crank shape, and a part thereof is formed so as to project toward the front side. The portion of the handle portion 45 protruding toward the front side is inserted into the hole 5a of the case 5. That is, a part of the handle portion 45 is provided so as to project from the hole 5a to the outside (front side) of the case 5. The handle portion 45 is not limited to the crank shape, and may protrude to the outside of the case 5 so that the user can operate the handle portion 45, and may be L-shaped, for example.

The push plate 41 is arranged between the second support portion 16 and the circular portion 44 of the operating lever 40. The push plate 41 is formed in a fan shape.

On the surface of the push plate 41, three pins 50a to 50c are formed so as to project toward the front side (operation lever 40 side). The pins 50a to 50c are columnar and are inserted into the holes 44d to 44f formed in the circular portion 44 of the operating lever 40. The pins 50a to 50c are formed so as to penetrate the holes 44d to 44f.

The push plate 41 rotates integrally with the circular portion 44 of the operating lever 40 by inserting the pins 50a to 50c into the holes 44d to 44f of the circular portion 44 of the operating lever 40. Further, the pins 50a to 50c are slidable in the left-right direction with respect to the holes 44d to 44f. That is, the push plate 41 rotates integrally with the operation lever 40 and can move in the left-right direction with respect to the operation lever 40.

Compression coil springs 54a and 54b are arranged around the pins 50a and 50b between the push plate 41 and the circular portion 44 of the operating lever 40. The push plate 41 is urged toward the back side (second support portion 16 side) by the compression coil springs 54a and 54b. One end of the compression coil springs 54a and 54b is locked to the circular portion 44 of the operating lever 40, and the other end of the compression coil springs 54a and 54b is locked to the push plate 41.

Further, on the back surface of the push plate 41, a switch pushing portion 51 projecting toward the back side is formed. The switch pushing portion 51 is formed in an arc shape about the rotation axis of the rotating portion 11. A plurality of switch pressing portions 51 are formed so as to be capable of performing cleaning in a plurality of steps in the event of a power failure. Specifically, the switch pushing portion 51 includes a first rim switch pushing portion 51a, a second rim switch pushing portion 51b, and a Zet switch pushing portion 51c. The switch pushing portion 51 constitutes an operating portion.

The first rim switch pushing portion 51a and the second rim switch pushing portion 51b have substantially the same diameter and are formed apart from each other in the circumferential direction. The first rim switch pushing portion 51a is formed so as to push the rim switch 13a when the cleaning step is executed. The second rim switch pushing portion 51b is formed so as to push the rim switch 13a when the water sealing step is executed.

The Z-switch push portion 51c is formed radially inside the first rim switch push portion 51a and the second rim switch push portion 51b. The Z-switch push portion 51c is formed so as to push the Z-switch 13b when the discharge step is executed.

The amount of protrusion of each switch pushing portion 51a to 51c and the length in the circumferential direction are set according to the flow rate of the washing water in each step, that is, the sequence of each step.

In the push plate 41, the switch pushing portion 51a for the first rim and the switch pushing portion 51b for the second rim are formed radially outside the switch 13b for the Zet, so that the switch pushing portion 51a for the first rim, In addition, it becomes easy to adjust the length of the second rim switch pushing portion 51b in the circumferential direction. Therefore, it becomes easy to adjust the pressing time of the rim switch 13a, which is pressed twice during the plurality of steps, that is, the flow rate of the washing water.

The plate push-up portion 42 includes a frame portion 56, a push-up portion 57, a mounting portion 58, and an arm 59. The plate pushing portion 42 is attached to the push plate 41 via the mounting portion 58 and moves integrally with the push plate 41. That is, the plate pushing portion 42 rotates integrally with the operating lever 40 together with the push plate 41, and can move in the left-right direction with respect to the operating lever 40 together with the push plate 41. The plate pushing portion 42 constitutes a retracting portion.

The frame portion 56 is arranged between the push plate 41 and the first support portion 15. The frame portion 56 is formed in an arc shape centered on the rotation axis of the rotating portion 11.

The push-up portion 57 is formed so as to extend from the frame portion 56 toward the back side. The push-up portion 57 is formed in an arc shape centered on the rotation axis of the rotation portion 11.

The push-up portion 57 is formed with a tapered surface 57a on the tip end side in the circumferential direction, specifically, on the tip end side of the push-up portion 57 in the direction in which the operation lever 40 rotates from the initial position to the operation start position. Further, the push-up portion 57 is formed with a sliding surface 57b that slides on the protruding portion 66 of the plate shifting portion 12 along the circumferential direction from the tapered surface 57a. The push-up portion 57 is pushed out toward the front side by sliding the sliding surface 57b on the protruding portion 66 of the plate shifting portion 12.

The push-up portion 57 is formed so as to prevent the switch push portions 51a to 51c of the push plate 41 from coming into contact with the switches 13a and 13b when the operation lever 40 is rotated from the initial position to the operation start position. Will be done.

The length of the sliding surface 57b in the circumferential direction is such that when the operation lever 40 is rotated from the initial position to the operation start position, the switch pushing portions 51a to 51c are pushed up toward the front side, and the switches 13a and 13b are used. It is set to pass through the front side of each of the switches 13a and 13b with a gap formed between the switches 13a and 13b.

The mounting portion 58 is formed so as to extend radially inward from the front end of the frame portion 56. A mounting hole 58a is formed in the mounting portion 58, and the pin 50c of the push plate 41 is mounted and fixed to the mounting hole 58a via the mounting member 60. For example, the mounting member 60 is adhered to or press-fitted into the mounting hole 58a to be fixed. Further, for example, the pin 50c is adhered to or press-fitted to the mounting member 60 to be fixed.

As a result, the plate pushing portion 42 rotates together with the push plate 41 and can move in the left-right direction with respect to the operation lever 40 together with the push plate 41.

Further, a compression coil spring 61 is arranged around the pin 50c between the mounting portion 58 and the operating lever 40. The plate pushing portion 42 and the push plate 41 are urged toward the front side by the compression coil spring 61. One end of the compression coil spring 61 is locked to the mounting portion 58, and the other end of the compression coil spring 61 is locked to the operating lever 40.

The compression coil springs 54a and 54b and the compression coil spring 61 are arranged on opposite sides of the operating lever 40 (see FIG. 13), and the compression coil springs 54a and 54b have a push plate 41 and a plate pushing portion 42. The compression coil spring 61 urges the push plate 41 and the plate pushing portion 42 toward the front side.

The spring constants of the compression coil springs 54a, 54b, 61 are set when the push plate 41 and the plate pushing portion 42 are not pushed toward the front side by the plate shifting portion 12, for example, when the operating lever 40 is in the initial position or when the operation lever 40 is operated. When the lever 40 returns from the operation start position to the initial position, the plate pushing portion 42 and the push plate 41 are set to be urged to the back side.

The arm 59 projects toward the front side from the radially inner end of the mounting portion 58 and is formed in an L shape. The arm 59 is inserted into the hole 30b of the first support portion 15. A sliding portion 59a is formed at the tip of the arm 59 on the front side toward the back side. The sliding portion 59a is formed in a spherical shape. When the plate pushing portion 42 is not pushed up toward the front side, the sliding portion 59a abuts on the sliding groove 30c, so that the movement of the plate pushing portion 42 and the push plate 41 to the back side is restricted. ..

The plate shifting portion 12 is rotatably attached to the second support portion 16 via the mounting portion 68. The plate shifting portion 12 includes a case 65, a protruding portion 66, and a torsion coil spring 67. The plate shifting portion 12 constitutes a retracting portion.

The case 65 is annular and has an opening 65a formed on the side of the second support portion 16 to accommodate the torsion coil spring 67. On the outer peripheral wall of the case 65, a protrusion 65b is formed which abuts on the stopper 17c and restricts the rotation of the plate shifting portion 12 when the operating lever 40 is rotated from the initial position to the operation start position.

When the plate shifting portion 12 is rotated from the initial position of the plate shifting portion 12, the plate shifting portion 12 is urged by the torsion coil spring 67 toward the initial position of the plate shifting portion 12. The initial position of the plate shifting portion 12 is a position where the protruding portion 66 can come into contact with the tapered surface 57a of the push-up portion 57 when the operating lever 40 is rotated from the initial position to the operation start position.

The protruding portion 66 is formed so as to project toward the front side from the surface of the plate shifting portion 12. On the surface of the protrusion 66, when the operation lever 40 is rotated from the initial position to the operation start position, the tapered surface 66a that slides with the tapered surface 57a of the plate pushing portion 42 and the sliding of the plate pushing portion 42. A moving surface 57b and a sliding sliding surface 66b are formed.

The switch unit 13 includes a rim switch 13a and a zet switch 13b. The rim switch 13a and the zet switch 13b are arranged side by side in the front-rear direction. That is, the switch unit 13 is a vertically installed switch in which the rim switch 13a and the Zet switch 13b are arranged in the front-rear direction. The rim switch 13a is arranged behind the Zet switch 13b.

The rim switch 13a is a mechanical switch that discharges wash water from the rim spout 26 when pressed by the first rim switch pushing portion 51a and the second rim switch pushing portion 51b. The Z-switch 13b is a mechanical switch that discharges wash water from the Z-spout port 24 when pressed by the Z-switch pusher 51c.

The deceleration unit 14 is a governor. When the operation lever 40 is manually rotated from the initial position to the operation start position and the operation lever 40 is released, the deceleration unit 14 has a rotation speed set in advance with respect to the urging force of the spiral spring 47. , A braking force is generated so that the operating lever 40 returns to the initial position.

The deceleration unit 14 is rotatably supported by the second flange 32 of the first support unit 15. The reduction gear 14 includes a first gear 14a that meshes with a gear 44a formed on the circular portion 44 of the operating lever 40, a second gear 14b that has more teeth than the first gear 14a, and a rod balance 14c. The second gear 14b meshes with, for example, an internal gear (not shown) provided in the case 5.

The deceleration unit 14 is not limited to the above configuration, and when the operation lever 40 is rotated to the operation start position and the operation lever 40 is released, the operation lever is opposed to the urging force of the spiral spring 47. The braking force may be generated so that the 40 returns to the initial position at a preset rotation speed.

In the power failure cleaning mechanism 4, the flow rate of cleaning water in each process, that is, each The sequence of processes can be adjusted and controlled.

Next, the operation of the cleaning mechanism 4 at the time of a power failure will be described with reference to FIGS. 9 to 18. In FIGS. 9 to 18, some configurations are omitted for the sake of explanation.

FIG. 9 is a rear view (No. 1) of a part of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 10 is a rear view (No. 2) of a part of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 11 is an oblique rear perspective view (No. 1) of a part of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 12 is a rear view (No. 3) of a part of the power failure cleaning mechanism 4 according to the first embodiment.

FIG. 13 is a diagram showing a state in which the plate shifting portion 12 pushes up the plate pushing portion 42 toward the front side. FIG. 14 is an oblique rear perspective view (No. 2) of a part of the power failure cleaning mechanism 4 according to the first embodiment. FIG. 15 is a rear view (No. 4) of a part of the power failure cleaning mechanism 4 according to the first embodiment.

FIG. 16 is a diagram (No. 1) showing a state in which the first rim switch pushing portion 51a pushes the rim switch 13a. FIG. 17A is a diagram (No. 2) showing a state in which the first rim switch pushing portion 51a pushes the rim switch 13a. FIG. 17B is a diagram showing a state in which the Zet switch pushing portion 51c pushes the Zet switch 13b. FIG. 17C is a diagram showing a state in which the second rim switch pushing portion 51b pushes the rim switch 13a. FIG. 18 is a rear view (No. 5) of a part of the power failure cleaning mechanism 4 according to the first embodiment.

In the power failure cleaning mechanism 4, when the operation lever 40 is not operated and is in the initial position, the plate pushing portion 42 is separated from the plate shifting portion 12 and the plate is pushed up as shown in FIG. The portion 42 cannot be pushed up toward the front side. Further, the switches 13a and 13b are not pushed by the plate pushing portion 42. The plate shifting portion 12 is located at the initial position of the plate shifting portion 12.

When the operating lever 40 is rotated from the initial position toward the operation start position, the tapered surface 57a of the plate pushing portion 42 abuts on the tapered surface 66a of the protruding portion 66 of the plate shifting portion 12, as shown in FIG. .. When the operating lever 40 is further rotated while the tapered surfaces 57a and 66a are in contact with each other, the plate shifting portion 12 shifts the plate against the urging force of the torsion coil spring 67 as shown by an arrow in FIG. It rotates from the initial position of the part 12.

When the operating lever 40 is further rotated toward the operation start position, the protrusion 65b (see FIG. 8) of the plate shifting portion 12 comes into contact with the stopper 17c (see FIG. 7), and the rotation of the plate shifting portion 12 is restricted. To. Then, when the operation lever 40 is further rotated toward the operation start position, the plate pushing portion 42 rides on the protruding portion 66 of the plate shifting portion 12 and is pushed up toward the front side as shown by an arrow in FIG. After riding on the protruding portion 66 of the plate shifting portion 12, the plate pushing portion 42 rotates together with the operating lever 40 while sliding the sliding surface 57b onto the sliding surface 66b of the protruding portion 66 of the plate shifting portion 12. ..

Further, when the plate pushing portion 42 is pushed up toward the front side, as shown in FIG. 13, the push plate 41 is pushed up toward the front side against the urging force of the compression coil springs 54a and 54b.

When the push plate 41 is pushed up toward the front side, the switch pushing portions 51a to 51c of the push plate 41 are pushed up toward the front side of the switches 13a and 13b. In this state, a gap is formed between the switch pushing portions 51a to 51c and the switches 13a and 13b in the left-right direction. Then, when the operation lever 40 is rotated, the switch pushing portions 51a to 51c pass through the front side of the switches 13a and 13b with a gap formed between the switch pushing portions 51a and 13b. Therefore, the switches 13a and 13b are not pushed by the switch pushing portions 51a to 51c.

That is, when the operation lever 40 is rotated from the initial position to the operation start position, the plate shifting portion 12 operates the switches 13a and 13b by retracting the switch pushing portions 51a to 51c toward the front side. To prevent.

In this way, when the operation lever 40 is rotated from the initial position to the operation start position, the switch pushing portions 51a to 51c do not abut on the switches 13a and 13b, and the switches 13a and 13b are pushed. There is no.

After the operation lever 40 is further rotated toward the operation start position and the switch pushing portions 51a to 51c pass the front side of the switches 13a and 13b, the sliding surface 57b of the plate pushing portion 42 is the plate shifting portion. It does not slide on the sliding surface 66b of the protruding portion 66 of 12. As a result, the plate shifting portion 12 rotates due to the urging force of the torsion coil spring 67 as shown by an arrow in FIG.

Further, the push plate 41 (see FIG. 13) and the plate pushing portion 42 move to the back side as shown by arrows in FIG. 15 by the urging force of the compression coil springs 54a and 54b (see FIG. 13).

As shown in FIG. 13, a compression coil spring 61 is provided between the mounting portion 58 of the plate pushing portion 42 and the operating lever 40, and the push plate 41 and the plate pushing portion 42 move to the back side. At that time, the braking force acts by the contraction of the compression coil spring 61. Therefore, it is possible to prevent the plate pushing portion 42 from moving vigorously to the back side due to the urging force of the compression coil springs 54a and 54b, and to prevent the cleaning mechanism 4 from deteriorating during a power failure.

When the user releases the operation lever 40 after the operation lever 40 is rotated to the operation start position and the operation lever 40 is released, the operation lever 40 is directed toward the initial position by the urging force of the spiral spring 47. And rotate. The rotation speed of the operation lever 40 is adjusted by the deceleration unit 14 to the initial position, and the lever 40 rotates.

When the operating lever 40 rotates toward the initial position, the push plate 41 rotates together with the operating lever 40. Then, as shown in FIGS. 16 and 17A, the first rim switch pushing portion 51a pushes the rim switch 13a, and the cleaning step is executed. The cleaning step is executed while the first rim switch pushing portion 51a pushes the rim switch 13a.

The length of the first rim switch pushing portion 51a in the circumferential direction and the rotation speed of the operating lever 40 are set so that the flow rate of the washing water discharged from the rim water discharge port 26 in the washing step becomes equal to the normal flow rate. It is set.

Further, when the operation lever 40 rotates toward the initial position, the first rim switch pushing portion 51a separates from the rim switch 13a, and as shown in FIG. 17B, the Zet switch pushing portion 51c presses the Zet switch 13b. The push and discharge process is performed. The discharging step is executed while the Zet switch pushing portion 51c is pressing the Zet switch 13b.

The length of the Z-switch pushing portion 51c in the circumferential direction and the rotation speed of the operating lever 40 are set so that the flow rate of the washing water discharged from the Z-water discharge port 24 in the discharge process is equal to the normal flow rate. ing.

Further, when the operation lever 40 rotates toward the initial position, the Zet switch pushing portion 51c separates from the Zet switch 13b, and as shown in FIG. 17C, the second rim switch pushing portion 51b pushes the rim switch 13a. , The water sealing process is carried out. The water sealing step is executed while the second rim switch pushing portion 51b pushes the rim switch 13a.

The length of the second rim switch pushing portion 51b in the circumferential direction and the rotation speed of the operating lever 40 are such that the flow rate of the washing water discharged from the rim spout port 26 in the water sealing process is equal to the normal flow rate. Is set to.

As described above, when the operation lever 40 is released after the operation lever 40 is rotated to the operation start position, the cleaning step, the drainage step, and the water sealing step are automatically executed. Further, the flow rate of the washing water in each process is controlled by a mechanical operation by the washing mechanism 4 at the time of a power failure.

When the operation lever 40 rotates toward the initial position, the plate shifting portion 12 protrudes as shown in FIG. 18 even when the plate shifting portion 12 rotates toward the initial position of the plate shifting portion 12. The portion 66 abuts on the outer peripheral wall of the push-up portion 57 of the plate push-up portion 42, and the operation lever 40 is not prevented from rotating toward the initial position.

Further, for example, if the plate shifting portion 12 returns to the initial position of the plate shifting portion 12 by the urging force of the torsion coil spring 67 before the operating lever 40 rotates toward the initial position, the plate shifting portion 12 may return to the initial position. The protrusion 66 is pushed by the push-up portion 57 of the plate push-up portion 42 and rotates in the direction indicated by the arrow in FIG. Therefore, the operation lever 40 is not prevented from rotating toward the initial position.

The power failure cleaning mechanism 4 automatically executes a plurality of processes by manually operating the operation lever 40 once in the event of a power failure. As a result, the flush toilet bowl 1 can easily perform the cleaning operation in the event of a power failure without causing the user to perform complicated operations.

Further, the cleaning mechanism 4 at the time of a power failure automatically executes the cleaning process, the drainage process, and the water sealing process by manually operating the operation lever 40 once in the event of a power failure. As a result, the flush toilet bowl 1 can perform the same cleaning as in a normal state in the event of a power failure without causing the user to perform complicated operations.

For example, if a plurality of steps are started while the user is rotating the operation lever 40 from the initial position, the flow rate of the washing water changes according to the operation time of the user's operation lever, and there is a possibility that filth will not be discharged. ..

On the other hand, the power failure cleaning mechanism 4 starts a plurality of steps after the operation lever 40 is rotated from the initial position to the operation start position and the operation lever 40 is released. As a result, the flush toilet 1 can suppress the change in the flow rate of the wash water by the operation of the user, can discharge the filth in the same manner as in the normal time, and performs the same wash as in the normal time. be able to.

The cleaning mechanism 4 at the time of a power failure controls the flow rate of the cleaning water discharged from the rim spout 26 in the cleaning process and the water sealing process, and the flow rate of the cleaning water discharged from the Zet spout 24 in the discharging process, and controls the cleaning process and the drainage. The process and the water sealing process are automatically executed. As a result, even in the event of a power failure, filth can be discharged in the same manner as in normal times.

The power failure cleaning mechanism 4 is urged by the spiral spring 47 in the direction of returning the operation lever 40 from the operation start position to the initial position. As a result, the operating lever 40 can be automatically returned to the initial position.

When the operation lever 40 is rotated from the initial position to the operation start position, the power failure cleaning mechanism 4 pushes up the switch pushing portions 51a to 51c toward the front side, and pushes the switch pushing portions 51a to 51c and the switches 13a and 13b. Create a gap between and. This makes it possible to prevent the switches 13a and 13b from being pressed when the operation lever 40 is rotated from the initial position to the operation start position.

(Second Embodiment)
Next, the flush toilet bowl 1 of the second embodiment will be described with reference to FIGS. 19 to 23. In the flush toilet bowl 1 of the second embodiment, the cleaning mechanism 4 at the time of a power failure is different from that of the first embodiment, and here, the cleaning mechanism 4 at the time of a power failure will be described. FIG. 19 is a schematic perspective view of the toilet bowl main body 2 according to the second embodiment. FIG. 20 is a perspective view (No. 1) of the power failure cleaning mechanism 4 according to the second embodiment. FIG. 21 is a perspective view (No. 2) of the power failure cleaning mechanism 4 according to the second embodiment. FIG. 22 is an exploded perspective view of the power failure cleaning mechanism 4 according to the second embodiment. FIG. 23 is a front view of the power failure cleaning mechanism 4 according to the second embodiment. In FIGS. 20 to 22, the deceleration unit 72 is omitted. Further, in FIGS. 21 and 23, a part of the support case 70 is omitted.

The power failure cleaning mechanism 4 is provided on the left rear side of the flush toilet bowl 1. The power failure cleaning mechanism 4 includes a support case 70, a rotating unit 71, a switch unit 13, and a deceleration unit 72. The cleaning mechanism 4 at the time of a power failure may be housed in the toilet bowl main body 2 and covered with a lid or the like.

The support case 70 accommodates a part of the rotating portion 71. Holes 70c and 70d into which the rotation shaft portion 76 of the rotation portion 71 is inserted are formed in the walls 70a and 70b of the support cases 70 facing each other in the left-right direction. The support case 70 rotatably supports the rotating portion 71. A hole 70f into which the rim switch 13a is inserted and a hole 70g into which the zet switch 13b is inserted are formed in the wall 70e behind the support case 70. The holes 70f and 70g are formed side by side in the left-right direction.

Further, the support case 70 is formed with a holding frame 70h that projects rearward and holds the switch portion 13. The support case 70 may be formed of a plurality of members, and the support case 70 may be formed of, for example, two members divided in the vertical direction.

The rotating portion 71 includes an operating lever 75, a rotating shaft portion 76, and a switch pushing portion 77. The operation lever 75 is arranged on the front side of the support case 70.

The rotary shaft portion 76 has a columnar shape and is attached to the base end portion of the operating lever 75. For example, the rotary shaft portion 76 is attached to the operating lever 75 by being adhered to or press-fitted into a recess (not shown) formed at the base end portion of the operating lever 75. As a result, the rotating shaft portion 76 and the operating lever 75 are integrated and rotate.

A groove 78 is formed at the inner end of the rotating shaft portion 76 over the entire circumference. A stopper 79 is arranged in the groove 78 on the back side of the support case 70. The stopper 79 is formed in a C shape and comes into contact with the support case 70 to prevent the rotary shaft portion 76 from coming off the support case 70. Further, a deceleration portion 72 is attached to the end portion on the back side of the rotary shaft portion 76.

The rotation shaft portion 76 is formed with a first notch portion 80, a second notch portion 81, and a third notch portion 82. The rotation shaft portion 76 is formed with a second notch 81, a first notch 80, and a third notch 82 from the front side to the back side. The first notch 80, the second notch 81, and the third notch 82 form a retracting portion.

The first notch 80 is formed so as to face the rim switch 13a. The first notch 80 is provided with a first rim switch pushing portion 77a. The first notch 80 is formed between the side walls 80a and 80b facing each other in the left-right direction and the side walls 80a and 80b, and is a support wall 80c that can support the first rim switch pushing portion 77a from below (see FIG. 24B). And a back wall 80d (see FIG. 24B) formed between the side walls 80a and 80b and connected to the support wall 80c.

The support wall 80c supports the first rim switch pushing portion 77a from below when the operating lever 75 rotates from the operation start position to the initial position, and the first rim switch pushing portion 77a with respect to the operating lever 75. Regulate relative rotation. The support wall 80c is formed so that the first rim switch pushing portion 77a pushes the rim switch 13a to execute the cleaning step when the operation lever 75 rotates from the operation start position to the initial position. The support wall 80c constitutes a regulatory section.

The rear wall 80d pushes the first rim switch when the operation lever 75 is rotated from the initial position toward the operation start position and the first rim switch pushing portion 77a comes into contact with the upper end of the rim switch 13a. The portion 77a is formed so as to be relatively rotatable with respect to the rotation of the operating lever 75. Specifically, the back wall 80d is formed so that the first rim switch pushing portion 77a rotates relative to the rotation of the operation lever 75 without pushing the rim switch 13a and can be retracted. Will be done.

The second notch 81 is formed so as to face the rim switch 13a. The second notch 81 is provided with a second rim switch pushing portion 77b. The second notch 81 is formed between the side walls 81a and 81b facing each other in the left-right direction and the side walls 81a and 81b, and is a support wall 81c that can support the second rim switch push portion 77b from below (see FIG. 24A). And a back wall 81d (see FIG. 24A) formed between the side walls 81a and 81b and connected to the support wall 81c.

The support wall 81c supports the second rim switch pushing portion 77b from below when the operating lever 75 rotates from the operation start position to the initial position, and the second rim switch pushing portion 77b with respect to the operating lever 75. Regulate relative rotation. The support wall 81c is formed so that the second rim switch pushing portion 77b pushes the rim switch 13a to execute the water sealing step when the operation lever 75 rotates from the operation start position to the initial position. .. The support wall 81c constitutes a regulatory section.

The support wall 81c is formed so that the second rim switch pushing portion 77b comes into contact with the rim switch 13a at a later timing than the first rim switch pushing portion 77a.

The rear wall 81d pushes the second rim switch when the operation lever 75 is rotated from the initial position toward the operation start position and the second rim switch pushing portion 77b comes into contact with the upper end of the rim switch 13a. The portion 77b is formed so as to be relatively rotatable with respect to the rotation of the operating lever 75. Specifically, the back wall 81d is formed so that the second rim switch pushing portion 77b rotates relative to the rotation of the operation lever 75 without pushing the rim switch 13a and can be retracted. Will be done.

The third notch 82 is formed so as to face the Zet switch 13b. The third notch 82 is provided with a Zet switch pushing portion 51c. The third notch 82 is formed between the side walls 82a and 82b facing each other in the left-right direction and the side walls 82a and 82b, and is a support wall 82c that can support the Zet switch pushing portion 77c described later from below (see FIG. 24C). And a back wall 82d (see FIG. 24C) formed between the side walls 82a and 82b and connected to the support wall 82c.

The support wall 82c supports the Zet switch pushing portion 77c from below when the operating lever 75 rotates from the operation start position to the initial position, and the relative rotation of the Zet switch pushing portion 77c with respect to the operating lever 75. To regulate. The support wall 82c is formed so that when the operation lever 75 rotates from the operation start position to the initial position, the Zet switch pushing portion 77c pushes the Zet switch 13b to execute the discharging step. The support wall 82c constitutes a regulatory unit.

The support wall 82c is later than the timing at which the first rim switch pushing portion 77a abuts on the rim switch 13a when the operation lever 75 rotates from the initial position to the operation start position, and the second rim switch. The push portion 77b is formed so as to abut on the Zet switch 13b at a timing earlier than the timing at which the push portion 77b abuts on the rim switch 13a.

When the operation lever 75 is rotated from the initial position to the operation start position of the rear wall 82d and the Zet switch pushing portion 77c comes into contact with the upper end of the Zet switch 13b, the Zet switch pushing portion 77c is moved. It is formed so as to be relatively rotatable with respect to the rotation of the operating lever 75. Specifically, the back wall 82d is formed so that the Zet switch pushing portion 77c rotates relative to the rotation of the operating lever 75 without pushing the Zet switch 13b and can be retracted. ..

The rotary shaft portion 76 may be formed by connecting a plurality of members, or may be formed by, for example, a plurality of members divided in the left-right direction.

The push portion 77 includes a first rim switch push portion 77a, a second rim switch push portion 77b, and a zet switch push portion 77c.

The first rim switch pushing portion 77a is arranged in the first notch portion 80 and is rotatably supported by the shaft portion 85. The shaft portion 85 extends in the left-right direction and is inserted into the hole 76a formed in the rotating shaft portion 76. The shaft portion 85 is provided so that the rotating shaft of the first rim switch pushing portion 77a is behind the rotating shaft portion 76, that is, the rotating shaft of the operating lever 75.

The second rim switch pushing portion 77b is arranged in the second notch 81 and is rotatably supported by the shaft portion 86. The shaft portion 86 extends in the left-right direction and is inserted into the hole 76b formed in the rotating shaft portion 76. The shaft portion 86 is provided so that the rotation shaft of the first rim switch pushing portion 77a is behind the rotation shaft of the operation lever 75.

The Z-switch push portion 77c is arranged in the third notch 82 and is rotatably supported by the shaft portion 87. The shaft portion 87 extends in the left-right direction and is inserted into the hole 76c formed in the rotating shaft portion 76. The shaft portion 87 is provided so that the rotation shaft of the Zet switch pushing portion 77c is behind the rotation shaft of the operation lever 75.

Each switch pushing portion 77a to 77c rotates about a rotation axis eccentric from the rotation axis of the operation lever 75. The switch pushing portions 77a to 77c are relatively rotatable with respect to the rotation of the rotating shaft portion 76. The switch pushing portions 77a to 77c are provided so that the tip end side protrudes from the notch portions 80 to 82 in a state of being supported by the support walls 80c to 82c from below.

The switch pushing portions 77a to 77c are provided so as to rotate to the lower part of the switches 13a and 13b without pushing the switches 13a and 13b when the operation lever 75 is rotated from the initial position to the operation start position. ..

The switch unit 13 includes a rim switch 13a and a zet switch 13b. The rim switch 13a and the zet switch 13b are arranged side by side in the left-right direction. That is, the switch unit 13 is a horizontally placed switch in which the rim switch 13a and the Zet switch 13b are arranged in the left-right direction. The rim switch 13a is arranged on the front side of the Zet switch 13b.

The front end surface 13c of the rim switch 13a is formed in a tapered shape so as to be inclined so that the lower end side is rearward. Further, the front end surface 13d of the Zet switch 13b is formed in a tapered shape so as to be inclined so that the lower end side is rearward.

The deceleration unit 72 is attached to the rotation shaft unit 76, and when the operation lever 75 is rotated to the operation start position and released, the rotation unit 71 is urged toward the initial position by a spring (not shown) and is urged. A braking force is generated so as to return to the initial position at a preset rotation speed.

In the power failure cleaning mechanism 4, the length of each switch pushing portion 77a to 77c, the shape of each notch portion 80 to 82, the rotation speed when the operation lever 75 returns to the initial position, and the like are adjusted in each process. The flow rate of wash water, i.e. the sequence of each step, can be adjusted and controlled.

Next, the operation of the power failure cleaning mechanism 4 according to the second embodiment will be described with reference to FIGS. 24A to 32C.

“A”, “B”, and “C” assigned to the drawing numbers of FIGS. 24A to 32C correspond to the AA cross section, the BB cross section, and the CC cross section in FIG. 23. For example, FIG. 24A is a sectional view taken along the line AA of FIG. 23 (No. 1), FIG. 24B is a sectional view taken along the line BB of FIG. 23 (No. 1), and FIG. 24C is a sectional view taken along the line CC of FIG. It is a cross-sectional view (No. 1).

Further, in FIGS. 24A to 32C, the same drawing number, for example, "FIG. 24A to FIG. 24C", shows each cross section (AA cross section, BB cross section, CC) at the same position of the operating lever 75. Cross section) is shown.

When the operating lever 75 (see FIG. 23) is in the initial position, as shown in FIGS. 24A to 24C, the switch pushing portions 77a to 77c are not in contact with the switches 13a and 13b, and the switches are not in contact with each other. 13a and 13b are not pressed.

When the operating lever 75 is rotated from the initial position toward the operation start position, the second rim switch pushing portion 77b rotates and comes into contact with the upper end of the rim switch 13a. The second rim switch push portion 77b can rotate relative to the operation lever 75 around the rotation axis of the shaft portion 86, and rotation in the direction opposite to the rotation direction of the operation lever 75 is restricted. Not. Therefore, as shown in FIG. 25A, the second rim switch pushing portion 77b rotates toward the back wall 81d around the rotation axis of the shaft portion 86 in a state of being in contact with the upper end of the rim switch 13a. Therefore, the rim switch 13a is not pushed by the second rim switch pushing portion 77b.

Further, as shown in FIG. 25C, the Zet switch pushing portion 77c rotates and comes into contact with the upper end of the Zet switch 13b. Like the second rim switch pushing portion 77b, the Z-switch pushing portion 77c is rotatable relative to the operating lever 75, and rotation of the operating lever 75 in the direction opposite to the rotating direction is restricted. Not. Therefore, the Zet switch 13b is not pushed by the Zet switch pushing portion 77c.

As shown in FIG. 25B, the first rim switch pushing portion 77a is not in contact with the rim switch 13a.

When the operating lever 75 is further rotated from the initial position toward the operation start position, the first rim switch pushing portion 77a rotates and comes into contact with the upper end of the rim switch 13a, as shown in FIG. 26B. The first rim switch pushing portion 77a is rotatable relative to the operating lever 75, and rotation in the direction opposite to the rotation direction of the operating lever 75 is not restricted. Therefore, the rim switch 13a is not pushed by the first rim switch pushing portion 77a.

Further, the shaft portion 86 of the second rim switch pushing portion 77b rotates together with the operating lever 75. The tip side of the second rim switch pushing portion 77b is in contact with the upper end of the rim switch 13a, and the second rim switch pushing portion 77b rotates relative to the rotation of the operating lever 75 about the rotation axis of the shaft portion 86. Therefore, the contact position of the second rim switch pushing portion 77b with the upper end of the rim switch 13a changes, and as shown in FIG. 26A, the second rim switch pushing portion 77b comes into contact with the upper end of the rim switch 13a on the tip side. The rim switch 13a is not pushed by the second rim switch pushing portion 77b.

As the operation lever 75 is rotated toward the operation start position in this way, the contact position between the second rim switch pushing portion 77b and the upper end of the rim switch 13a gradually becomes the second rim switch. It moves to the tip side of the push portion 77b.

Similarly, as shown in FIG. 26C, the Zet switch pushing portion 77c also comes into contact with the upper end of the Zet switch 13b on the tip side. The Zet switch 13b is not pushed by the Zet switch pushing portion 77c.

When the operation lever 75 is further rotated toward the operation start position, the contact position between the second rim switch pushing portion 77b and the upper end of the rim switch 13a is the tip of the second rim switch pushing portion 77b. On the side, the tip of the second rim switch pushing portion 77b does not come into contact with the upper end of the rim switch 13a.

As a result, the second rim switch pushing portion 77b rotates about the rotation axis of the shaft portion 86 toward the support wall 81c due to its own weight, and abuts on the support wall 81c as shown in FIG. 27A. Since the front end surface 13c of the rim switch 13a is tapered, the second rim switch pushing portion 77b rotates without pushing the rim switch 13a.

Further, as shown in FIG. 27B, the contact position of the first rim switch pushing portion 77a with the upper end of the rim switch 13a is on the tip end side of the first rim switch pushing portion 77a. Further, as shown in FIG. 27C, the Zet switch pushing portion 77c has a contact position with the upper end of the Zet switch 13b on the tip end side of the Zet switch pushing portion 77c. Even in these states, the rim switch 13a is not pushed by the first rim switch pushing portion 77a, and the Zet switch 13b is not pushed by the Zet switch pushing portion 77c.

When the operation lever 75 is further rotated toward the operation start position, the Zet switch pushing portion 77c does not come into contact with the upper end of the Zet switch 13b, and the Zet switch pushing portion 77c becomes the shaft portion 87 due to its own weight. It rotates about the rotation axis and abuts on the support wall 82c. Similarly, the first rim switch pushing portion 77a does not come into contact with the upper end of the rim switch 13a, and the first rim switch pushing portion 77a rotates about the rotation axis of the shaft portion 85 due to its own weight. Abuts on the support wall 80c.

In this way, when the operation lever 75 is rotated to the operation start position, the second rim switch pushing portion 77b abuts on the support wall 81c as shown in FIG. 28A, and as shown in FIG. 28B, the second rim switch pushing portion 77b abuts on the support wall 81c. The switch push portion 77a for 1 rim abuts on the support wall 80c. Further, as shown in FIG. 28C, the Zet switch pushing portion 77c abuts on the support wall 82c.

When the operating lever 75 is released after the operating lever 75 has been rotated to the operation start position, the rotating unit 71 rotates toward the initial position while the rotation speed is adjusted by the decelerating unit 72.

When the operating lever 75 rotates toward the initial position, as shown in FIG. 29B, the first rim switch pushing portion 77a is supported downward by the support wall 80c, that is, the downward movement is supported by the support wall 80c. In a state regulated by, it rotates together with the operating lever 75 and comes into contact with the front end surface 13c of the rim switch 13a.

As shown in FIG. 29A, the second rim switch pushing portion 77b rotates together with the operating lever 75 in a state where the lower portion is supported by the support wall 81c. Further, as shown in FIG. 29C, the Zet switch pushing portion 77c rotates together with the operating lever 75 in a state where the lower portion is supported by the support wall 82c.

When the operating lever 75 further rotates toward the initial position, the first rim switch pushing portion 77a rotates with the lower part supported by the support wall 80c, so that the rim switch 13a rotates as shown in FIG. 30B. It is pushed by the first rim switch pushing portion 77a. As a result, the cleaning step is executed. The cleaning step is performed while the rim switch 13a is pressed by the first rim switch pushing portion 77a.

As shown in FIG. 30A, the second rim switch pushing portion 77b is not in contact with the rim switch 13a. Further, as shown in FIG. 30C, the Zet switch pushing portion 77c abuts on the front end surface 13d of the Zet switch 13b in a state where the lower portion is supported by the support wall 82c.

Further, when the operation lever 75 rotates toward the initial position, the first rim switch pushing portion 77a rotates in a state where the lower portion is supported by the support wall 80c as shown in FIG. 31B, and the rim switch 13a It does not come into contact with the front end surface 13c, and the cleaning process is completed.

Further, since the Zet switch pushing portion 77c rotates in a state where the lower part is supported by the support wall 82c, the Zet switch 13b is pushed by the Zet switch pushing portion 77c as shown in FIG. 31C. As a result, the discharge process is executed. The ejection step is executed while the Zet switch 13b is pressed by the Zet switch pushing portion 77c.

Further, as shown in FIG. 31A, the second rim switch pushing portion 77b abuts on the front end surface 13c of the rim switch 13a in a state where the lower portion is supported by the support wall 81c.

Further, when the operation lever 75 rotates toward the initial position, the Zet switch pushing portion 77c rotates in a state where the lower part is supported by the support wall 82c as shown in FIG. 32C, and the front end surface of the Zet switch 13b is rotated. It does not come into contact with 13d, and the discharge process is completed.

Further, since the second rim switch pushing portion 77b rotates in a state where the lower portion is supported by the support wall 81c, the rim switch 13a is pushed by the second rim switch pushing portion 77b as shown in FIG. 32A. Is done. As a result, the water sealing step is executed. The water sealing step is executed while the rim switch 13a is pressed by the second rim switch pushing portion 77b. As shown in FIG. 32B, the first rim switch pushing portion 77a rotates while being supported downward by the support wall 80c.

Further, when the operation lever 75 rotates toward the initial position, the second rim switch pushing portion 77b rotates with the lower portion supported by the support wall 81c, and does not come into contact with the front end surface 13c of the rim switch 13a. , The water sealing process is completed.

When the operation lever 75 is operated from the initial position to the operation start position, the power failure cleaning mechanism 4 retracts the switch pushing portions 77a to 77c by relatively rotating them with respect to the rotation of the operation lever 75. This makes it possible to prevent the switches 13a and 13b from being pressed when the operation lever 75 is rotated from the initial position to the operation start position.

Further, the cleaning mechanism 4 at the time of a power failure regulates the relative rotation of the switch pressing portions 77a to 77c with respect to the rotation of the operation lever 75 when the operation lever 75 rotates from the operation start position to the initial position. , Cleaning process, drainage process, and water sealing process can be performed automatically.

The plurality of steps are not limited to the cleaning step, the discharging step, and the water sealing step. For example, the plurality of steps may be a step of discharging wash water from different rim spouts.

Further, between the washing step and the water sealing step, the washing water having a flow rate smaller than that in the washing step may be discharged from the rim water discharge port 26.

Further effects and variations can be easily derived by those skilled in the art. For this reason, the broader aspects of the invention are not limited to the particular details and representative embodiments described and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general concept of the invention as defined by the appended claims and their equivalents.

1 Washing toilet 2 Toilet bowl body 4 Cleaning mechanism in case of power failure 11 Rotating part 12 Plate shifting part 13 Switch part 13a Rim switch 13b Zet switch 21 Bowl part 23 Drain trap pipeline 24 Zet spout 26 Rim spout 40 Operation lever 41 Push plate 42 Plate push-up part 47 Swirling spring 51 Switch push part 51a Switch push part for 1st rim 51b Switch push part for 2nd rim 51c Switch push part for Zet 80 1st notch part 80c Support wall 81 2nd notch part 81c Support Wall 82 3rd notch 82c Support wall

Claims (7)

The body of the toilet that receives filth and
In the event of a power outage, it is equipped with a power outage cleaning mechanism that executes cleaning during a power outage in multiple steps and discharges the filth from the toilet bowl body.
The cleaning mechanism at the time of a power failure is
By manually operating the operation lever once from the initial position to the predetermined position, the plurality of steps are automatically executed .
After the operating lever is operated to the predetermined position and the operating lever is released, the plurality of steps are started.
A flush toilet that features that. The toilet body is
The bowl part where the rim spout is formed by receiving the filth,
It is provided with a trap portion connected to the bowl portion to discharge the filth and to form a Zet spout.
The cleaning mechanism at the time of a power failure is
The first step of discharging the washing water for washing the bowl portion from the rim spout port, and
The second step of starting the discharge of the washing water from the Zet spout after the start of the first step, and
After the start of the second step, the washing water is discharged from the rim spout to start the formation of the sealing water in the trap portion, and the operation lever is operated once in the event of a power failure. The water-washing toilet according to claim 1, wherein the toilet bowl is automatically executed. The cleaning mechanism at the time of a power failure is
While the operating lever returns from the predetermined position to the initial position, the flow rate of the washing water discharged from the rim spout and the flow rate of the washing water discharged from the Zet spout are controlled to automatically perform the plurality of steps. The water-washing toilet according to claim 2 , wherein the toilet bowl is to be executed. The cleaning mechanism at the time of a power failure is
The flush toilet according to any one of claims 1 to 3 , further comprising an urging portion for urging the operating lever in a direction of returning the operating lever from the predetermined position to the initial position. The cleaning mechanism at the time of a power failure is
An operating unit that operates a plurality of switches according to the plurality of steps when the operating lever returns from the predetermined position to the initial position.
The claim is characterized in that the operating lever is provided with a retracting portion for preventing the plurality of switches from operating by retracting the operating portion when the operating lever is operated from the initial position to the predetermined position. The flush toilet according to any one of 1 to 4 . The working part is
It is provided with a plurality of switch pushers that rotate together with the operation lever and operate the plurality of switches according to the plurality of steps by pressing the plurality of switches as the rotation occurs.
The evacuation section is
When the operating lever is operated from the initial position to the predetermined position, pushing up the plurality of switch pushing portions creates a gap between the plurality of switches and the plurality of switch pushing portions. The flush toilet according to claim 5 . The working part is
A plurality of switch pushers that can rotate around the axis of rotation eccentric from the axis of rotation of the operation lever and operate the plurality of switches according to the plurality of steps.
It is provided with a regulating unit that regulates the relative rotation of the plurality of switch pressing portions with respect to the rotation of the operating lever when the operating lever returns from the predetermined position to the initial position.
The evacuation section is
When the operating lever is operated from the initial position to the predetermined position, the plurality of switch pushing portions are rotated relative to the rotation of the operating lever, whereby the plurality of switch pushing portions are operated. The flush toilet according to claim 5 , wherein the switch is retracted.

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