JP6946975B2 - Washing toilet seat device - Google Patents

Description

The present invention relates to a washing toilet seat device.

Conventionally, as a washing toilet seat device, a local washing nozzle that is configured to be able to move forward and backward from the inside of the main body of the device and discharges washing water toward the local part of the user to wash the local part, and a storage position (original position) in the main body of the device. ) Is provided with an openable / closable shutter that covers the tip of the local cleaning nozzle (see, for example, Patent Document 1). In this washing toilet seat device, a discharge port (spout) for discharging washing water is provided on the surface behind the shutter in the closed state, and the washing water is discharged from this discharge port to be in the accommodation position. The outer surface of the local cleaning nozzle is cleaned to remove dirt.

Japanese Unexamined Patent Publication No. 6136385

However, in the above-mentioned washing toilet seat device, since washing water is discharged from the discharge port of the closed shutter to the local washing nozzle at the accommodation position for washing, even if the dirt adhering to the local washing nozzle is removed, the dirt is found. May stay inside the device body without being discharged. It is conceivable that such dirt will affect the cleanliness of the local cleaning nozzle. In addition, there is still room for improvement because the demand for cleanliness of the local cleaning nozzle is increasing due to changes in the user's consciousness in recent years.

An object of the present invention is to more appropriately remove dirt from the local cleaning nozzle to maintain the cleanliness of the local cleaning nozzle.

The present invention has taken the following measures to achieve the above-mentioned main object.

The cleaning toilet seat device of the present invention has a local cleaning nozzle for performing local cleaning that discharges cleaning water toward the user's local area, and the local cleaning nozzle between the accommodating position and the cleaning position in front of the accommodating position. An accommodating portion for accommodating the local cleaning nozzle so as to allow advancing / retreating movement, and a flat plate-shaped member arranged in front of the accommodating portion, the tip of the local cleaning nozzle at the accommodating position having a flat plate surface. The shutter is provided with a shutter that rotates around a rotation axis in a closed state that is covered with, and an open state that exposes the local cleaning nozzle so that the local cleaning nozzle can be advanced from the accommodation position. The shutter covers the flat plate surface. It is a gist that a discharge port capable of discharging cleaning water to the local cleaning nozzle in an open state is provided on an end surface facing the rotating shaft.

In the washing toilet seat device of the present invention, a shutter that rotates around a rotation axis in a closed state and an open state is arranged in front of a housing portion that houses a local washing nozzle, and the shutter is in the closed state. A discharge port capable of discharging cleaning water to the local cleaning nozzle in the open state is provided on the end surface facing the rotation shaft with the flat plate surface covering the tip of the local cleaning nozzle sandwiched. Therefore, the outer surface of the local cleaning nozzle can be cleaned outside the accommodating portion by discharging the cleaning water from the discharge port of the shutter while the local cleaning nozzle is advanced from the accommodating portion. As a result, when the dirt adhering to the local cleaning nozzle is removed, the removed dirt can be prevented from staying in the accommodating portion. Therefore, it is possible to more appropriately remove the dirt on the local cleaning nozzle and maintain the cleanliness of the local cleaning nozzle.

In the washing toilet seat device of the present invention, the end face may be a surface facing downward in the closed state of the shutter and facing forward in the advancing / retreating direction of the local washing nozzle in the open state of the shutter. In this way, the discharge port on the end face is not visible to the user when the shutter is closed, so that the dirt on the local cleaning nozzle is removed more appropriately while preventing the appearance of the shutter from being spoiled. be able to.

In the cleaning toilet seat device of the present invention, the shutter opens and closes in conjunction with the advance / retreat movement of the local cleaning nozzle, and the local cleaning nozzle is moving from the accommodation position to the cleaning position at the start of the local cleaning and / Or a control device that controls the water supply to the shutter so that the cleaning water is discharged from the discharge port during the movement of the local cleaning nozzle from the cleaning position to the accommodation position at the end of the local cleaning. It may be provided. By cleaning the local cleaning nozzle at the start of local cleaning, it is possible to wet the outer surface of the local cleaning nozzle and easily remove dirt adhering to the local cleaning nozzle. Further, by cleaning the local cleaning nozzle at the end of the local cleaning, even if dirt adheres during the local cleaning, it can be removed before the local cleaning nozzle enters the accommodating portion. Furthermore, since the user can be made aware that the local cleaning nozzle is being cleaned by the sound of the cleaning water being generated while the local cleaning nozzle is moving, the user is concerned about the hygiene of the local cleaning nozzle. You can suppress the feeling.

In the cleaning toilet seat device of the present invention of this aspect, the control device discharges cleaning water from the discharging port even while the local cleaning nozzle is discharging cleaning water at the cleaning position during the local cleaning. As described above, the water supply to the shutter may be controlled. By doing so, the dirt adhering to the local cleaning nozzle can be quickly washed off during the local cleaning, so that the cleanliness of the local cleaning nozzle can be further improved.

In the washing toilet seat device of the present invention, the shutter may be provided with a plurality of the ejection ports formed in a round hole shape within a range above the local washing nozzle on the end face. In this way, it is possible to relatively easily form discharge ports having an appropriate number and diameter according to the amount of washing water required.

In the washing toilet seat device of the present invention, the shutter may be provided with the discharge port formed in a horizontally long slit shape within a range above the local washing nozzle on the end face. By doing so, the cleaning water can be evenly discharged to the upper part of the outer surface of the local cleaning nozzle, so that the cleaning effect can be further enhanced.

In the washing toilet seat device of the present invention, the shutter may have a rotating shaft formed in a hollow shaft shape, and the hollow portion of the rotating shaft may be used as a supply port for washing water to the discharge port. In this way, the shutter can be made compact and the layout restrictions can be suppressed as compared with the case where the supply port is provided independently.

It is an external perspective view of the toilet bowl 1 to which the washing toilet seat device 10 is attached. It is a block diagram which shows the outline of the structure of the washing toilet seat device 10. It is an external perspective view of a nozzle unit 20. It is an external perspective view of the nozzle unit 20 in a state where the shutter 50 is closed. It is an external perspective view of the nozzle unit 20 in a state where the shutter 50 is open. It is an external perspective view of a shutter 50. It is explanatory drawing which shows the outline outline of the cross section of a local cleaning nozzle. It is a flowchart which shows an example of a nozzle unit operation process. It is a flowchart which shows the nozzle unit operation process of the modification. It is an external perspective view of the shutter 150 of a modification. It is an external perspective view of the shutter 250 of a modification. It is an external perspective view of the shutter 350 of a modification. It is an external perspective view of the nozzle unit 20B of a modification. It is an external perspective view of the washer 55 in a cover. It is a flowchart which shows the nozzle unit operation process of the modification.

Next, a mode for carrying out the present invention will be described.

FIG. 1 is an external perspective view of the toilet bowl 1 to which the washing toilet seat device 10 is attached, FIG. 2 is a configuration diagram showing an outline of the configuration of the washing toilet seat device 10, and FIG. 3 is an external perspective view of the nozzle unit 20. .. Further, FIG. 4 is an external perspective view of the nozzle unit 20 with the shutter 50 closed, FIG. 5 is an external perspective view of the nozzle unit 20 with the shutter 50 open, and FIG. 6 is an external perspective view of the shutter 50. FIG. 7 is an explanatory view showing a schematic shape of a cross section of a local cleaning nozzle. In the present embodiment, the left-right direction, the front-back direction, and the up-down direction are as shown in FIGS. 3 to 6.

The toilet bowl 1 is a Western-style toilet bowl, and a washing toilet seat device 10 is installed on the upper surface of the toilet bowl 1. As shown in FIG. 1, the washing toilet seat device 10 rotates around the toilet seat device main body 11 installed behind the toilet bowl 1, the toilet seat 12 rotatably supported by the toilet seat device main body 11, and the toilet seat device main body 11. A toilet lid 13 that is freely supported and an operation panel 14 that is operated by the user are provided.

The toilet seat device main body 11 includes a nozzle unit 20 having a tail cleaning nozzle 21 and a bidet cleaning nozzle 22 as two local cleaning nozzles, and a control device 60 that controls the entire cleaning toilet seat device 10. As shown in FIGS. 2 to 5, the nozzle unit 20 includes a bidet cleaning nozzle drive unit 31 that moves the tail cleaning nozzle 21 forward and backward, and a bidet cleaning nozzle drive unit that moves the bidet cleaning nozzle 22 forward and backward. 32, a nozzle cover 40 that covers the entire outer periphery of the tail cleaning nozzle 21 and the bidet cleaning nozzle 22, and a movable shutter 50 (not shown in FIG. 3) that covers the front of the nozzle cover 40 are provided.

The buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 are single-stage shaft-shaped nozzle members that do not expand and contract. Although not shown, the tail cleaning nozzle 21 and the bidet cleaning nozzle 22 are a hollow cylindrical resin nozzle body in which a flow path for cleaning water is formed inside, and a water repellent treatment on the outer surface of the nozzle body, respectively. It is composed of a water-repellent layer formed by. The outer surface of the nozzle body is not limited to the water-repellent layer, and may be formed by a hydrophilic layer formed by a hydrophilic treatment as disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-308861. Further, as shown in FIGS. 7 (a) to 7 (c), the outer shape of the cross section of the tail cleaning nozzle 21 and the bidet cleaning nozzle 22 may be formed in a curved shape such as a circular shape or an elliptical shape, or may be formed in a curved shape such as FIG. As shown in (d) and (e), a part of the cross section (upper part or lower part) may be formed in a flat shape (straight line). Further, the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 may be configured to be expandable and contractible by a plurality of stages of nozzle members.

Although not shown, the tail cleaning nozzle drive unit 31 meshes with a motor as a drive source, a pinion gear rotated by the motor, and the tip portion is connected to the tail cleaning nozzle 21 and can move with the rotation of the pinion gear. A rack (flexible rack) is provided, and the butt washing nozzle 21 is moved forward or backward by the forward rotation or the reverse rotation of the motor. Further, the bidet cleaning nozzle drive unit 32 is also configured in the same manner. The control device 60 can detect the positions of the tail cleaning nozzle 21 and the bidet cleaning nozzle 22 from the rotation amount of each motor of the tail cleaning nozzle drive unit 31 and the bidet cleaning nozzle drive unit 32, a position sensor (not shown), and the like. ..

As shown in FIGS. 3 to 5, the nozzle cover 40 is composed of a lower cover member 41, an upper cover member 43, and a front wall member 45. On the lower cover member 41, the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 are respectively placed on the upper surface that is inclined diagonally downward toward the front. Further, the lower cover member 41 has a plurality of engaging claws 42 on both side edges in the width direction, and a plurality of engaging grooves 42 are provided at positions facing each other of the upper cover member 43. By engaging with 44, the upper cover member 43 is attached to the lower cover member 41. Further, the front wall member 45 is arranged at the front end of the lower cover member 43. The front wall member 45 is formed with openings 45a and 45b (see FIG. 3) for advancing and retreating the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22, respectively. As a result, the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 are surrounded by the lower cover member 41, the upper cover member 43, and the front wall member 45, and are housed in the nozzle cover 40.

As shown in FIGS. 4 and 5, the shutter 50 is a long flat plate-shaped member extending to the left and right, and rotates around a rotation shaft 51 provided on the upper side portion. The rotation shaft 51 is formed in a hollow shaft shape, and although not shown, the rotation shaft 51 is rotatably supported by being fitted into the hollow portion of the support shaft of the support member provided in the toilet seat device main body 11. The shutter 50 covers the front surface (openings 45a and 45b) of the nozzle cover 40, that is, the tips of the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 in the closed state (see FIG. 4), and the surface 50a is visually recognized. As a result, the buttocks cleaning nozzle 21, the bidet cleaning nozzle 22, and the peripheral portion thereof can be hidden to maintain the aesthetic appearance. Further, the shutter 50 is a nozzle that advances when the bidet cleaning nozzle 21 advances by driving the tail cleaning nozzle drive unit 31 or the bidet cleaning nozzle 22 advances by driving the bidet cleaning nozzle drive unit 32 (in FIG. 5). The back surface 50b is pushed by the cleaning nozzle 21) and rotates around the rotation shaft 51 to open the state (see FIG. 5). Further, the shutter 50 is urged in the closing direction by a spring (not shown), and when the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 are housed in the nozzle cover 40, the shutter 50 is closed by the urging force of the spring. Note that FIG. 6 is an external perspective view of the shutter 50 as viewed from the back surface 50b.

The shutter 50 has a plurality of (for example, four) discharge ports 52 formed in a round hole shape on the end surface 50c facing the downward side in the closed state and facing the front side in the advancing / retreating direction of the local cleaning nozzle in the open state, and the back surface. A supply port 53 that protrudes in an inverted L shape from 50b and is supplied with washing water, and a supply flow formed in the shutter 50 so as to store the washing water supplied from the supply port 53 and distribute it to each discharge port 52. A road 54 is provided. Since the discharge port 52 formed on the end surface 50c faces downward in the closed state of the shutter 50 and is not visible to the user, the aesthetic appearance of the shutter 50 is not spoiled. Further, since the end surface 50c faces the rotation shaft 51 with the front surface 50a (back surface 50b) of the shutter 50 as a flat plate surface, the discharge port 52 advances from the nozzle cover 40 when the shutter 50 is opened. It is located above the local cleaning nozzle and is oriented along the advancing / retreating movement direction (axial direction) of the local cleaning nozzle. The plurality of discharge ports 52 are located within the range above the tail cleaning nozzle 21 advanced from the nozzle cover 40 (see FIG. 5) and within the range above the bidet cleaning nozzle 22 advanced from the nozzle cover 40. The same number (for example, two) is formed at each position.

As shown in FIG. 2, the nozzle unit 20 is provided with a water supply pressure reducing valve 23 that reduces the water supply from the water supply source to a predetermined water supply pressure, and a heater and a temperature sensor that heat the washing water that has passed through the water supply pressure reducing valve 23. A heat exchange unit 25, a flow rate adjusting valve 27 for adjusting the flow rate of the washing water, and a flow path switching valve 28 for switching the supply destination of the washing water output from the flow rate adjusting valve 27 are provided. The buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 are connected to the flow path switching valve 28 as shown in FIG. The flow path switching valve 28 switches the supply destination to either the buttocks cleaning nozzle 21 or the bidet cleaning nozzle 22, and is configured as a rotary valve, a disc valve, or the like driven by a motor (not shown).

Further, the nozzle unit 20 has a shutter supply path 29a that branches from the flow path from the water supply pressure reducing valve 23 to the heat exchange unit 25 and is connected so as to be able to supply cleaning water to the supply port 53 of the shutter 50, and a shutter supply. It is provided with an on-off valve 29 provided on the road 29a. The shutter supply path 29a from the on-off valve 29 to the supply port 53 is formed of a flexible hose or the like. By opening the on-off valve 29, the washing water is supplied from the shutter supply path 29a to the supply flow path 54 via the supply port 53, the washing water is started to be discharged from the discharge port 52, and the on-off valve 29 is closed. Therefore, the discharge of the washing water from the discharge port 52 is completed. As described above, the discharge port 52 is located above the local cleaning nozzle extending from the nozzle cover 40 with the shutter 50 open. Further, the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 are inclined and advanced from the nozzle cover 40 so that the tip side is lowered. Therefore, the cleaning water discharged from the discharge port 52 is transmitted from the root side of the local cleaning nozzle advancing from the nozzle cover 40 to the upper part of the outer surface of the local cleaning nozzle (upper cross section of the local cleaning cleaning nozzle). , It flows toward the tip side of the local cleaning nozzle.

Although not shown, the control device 60 is configured as a microcomputer centered on a CPU, and includes a ROM, a RAM, an input / output port, and the like in addition to the CPU. As shown in FIG. 2, the control device 60 receives an operation signal from the operation panel 14 and a detection signal from the seating sensor 15 via the input port. Further, from the control device 60, a drive signal to the water supply / pressure reducing valve 23, a drive signal to the heat exchange unit 25, a drive signal to the flow rate adjusting valve 27, a drive signal to the flow path switching valve 28, and an on-off valve 29. A drive signal, a drive signal to the tail cleaning nozzle drive unit 31, a drive signal to the bidet cleaning nozzle drive unit 32, and the like are output via the output port. The operation panel 14 has a buttocks cleaning switch for instructing the buttocks cleaning, a bidet cleaning switch for instructing the bidet cleaning, a cleaning strength adjusting switch for adjusting the cleaning strength, a stop switch for instructing the stop of cleaning, and the like. It is provided.

Next, the operation of the washing toilet seat device 10 (nozzle unit 20) configured in this way will be described. FIG. 8 is a flowchart showing an example of the nozzle unit operation process. The control device 60 executes this process when the seating sensor 15 determines that the user is seated on the toilet seat 12. Further, although not shown, the control device 60 ends this process when the seating sensor 15 no longer detects the user's seating.

In this nozzle unit operation process, the control device 60 first waits for an instruction to start local cleaning (buttock cleaning or bidet cleaning) (S100). In the determination of S100, whether the buttocks cleaning switch or the bidet cleaning switch was operated by the operation signal from the operation panel 14 in a state where the user is determined to be seated on the toilet seat 12 by the detection signal from the seating sensor 15. It is done based on whether or not. When it is determined in S100 that the start of local cleaning is instructed, the on-off valve 29 is opened to discharge cleaning water from the discharge port 52 of the shutter 50 to start nozzle cleaning (S110), and a local cleaning nozzle for performing local cleaning (S110). Either the tail cleaning nozzle 21 or the bidet cleaning nozzle 22 (the same applies hereinafter) is advanced from the nozzle cover 40 (S120). As described above, since the shutter 50 is opened and the discharge port 52 faces forward due to the advance of the local cleaning nozzle, the outside of the local cleaning nozzle moving to the local cleaning position by the cleaning water discharged from the discharge port 52. The surface can be cleaned.

Next, the control device 60 waits for the local cleaning nozzle to reach the cleaning position (S130), and when it determines that the local cleaning nozzle has reached the cleaning position, discharges cleaning water from the local cleaning nozzle to start local cleaning (S140). ). Then, it waits for an instruction to stop the local cleaning (buttock cleaning or bidet cleaning) (S150). The determination of S150 is made based on whether or not the stop switch of the operation panel 14 has been operated. When the control device 60 determines that the stop of the local cleaning is instructed, the control device 60 ends the local cleaning (S160) and starts retracting the local cleaning nozzle at the cleaning position (moving into the nozzle cover 40) (S170). , Wait for the local cleaning nozzle to reach the accommodation position (standby position) in the nozzle cover 40 (S180). When it is determined that the local cleaning nozzle has reached the accommodation position, the on-off valve 29 is closed and the cleaning water is discharged from the discharge port 52 of the shutter 50 to end the nozzle cleaning (S190), and the process returns to S100. conduct.

As described above, in this embodiment, when the cleaning water is started to be discharged from the discharge port 52 at S110 based on the local cleaning start instruction, the local cleaning is completed and the local cleaning is completed, and the local cleaning nozzle is housed in the nozzle cover 40. Until then, the washing water is continuously discharged from the discharge port 52. Therefore, the outer surface of the local cleaning nozzle can be wetted with cleaning water during movement (advancing) at the start of local cleaning. Therefore, even if dirt adheres to the outer surface of the nozzle during local cleaning, the dirt is removed. It can be made easier. Further, by discharging the cleaning water even during the local cleaning, the dirt adhering to the outer surface of the nozzle during the local cleaning can be quickly removed. Further, by discharging the cleaning water during movement (during retreat) after the completion of local cleaning, even if dirt is attached to the outer surface of the nozzle, the dirt can be removed before entering the nozzle cover 40. .. Further, the user who hears the sound of the cleaning water discharged from the discharge port 52 while the local cleaning nozzle is moving (moving forward or backward) recognizes that the local cleaning nozzle is being cleaned, and thus is hygienic. You can dispel anxiety about the surface.

In the washing toilet seat device 10 described above, the discharge port 52 is formed on the end surface 50c of the shutter 50, and when the shutter 50 is rotated and opened by the advance of the local washing nozzle, the washing water is discharged from the discharge port 52 to the local washing nozzle. Discharge and clean the nozzle. As a result, the removed dirt does not stay in the nozzle cover 40, so that the dirt on the local cleaning nozzle can be removed more appropriately and the cleanliness of the local cleaning nozzle can be maintained. Further, the structure of the nozzle unit 20 can be made more compact than that in which a cleaning member (cleaner) for performing nozzle cleaning is provided separately from the shutter 50. Further, since the discharge port 52 is not visible when the shutter 50 is closed, the nozzle cleaning function can be added to the shutter 50 without spoiling the aesthetic appearance of the shutter 50.

Further, in the washing toilet seat device 10, since the washing water is discharged from the discharge port 52 of the shutter 50 while moving to the washing position and moving to the accommodating position, it is easy to remove even if dirt adheres to the outer surface of the nozzle. It is possible to prevent dirt adhering to the outer surface of the nozzle from entering the nozzle cover 40. In addition, the user can be made aware that the local cleaning nozzle is being cleaned, and anxiety about hygiene can be dispelled. Further, since the cleaning water is discharged from the discharge port 52 of the shutter 50 even during the local cleaning, the dirt adhering to the local cleaning nozzle can be quickly washed off during the local cleaning.

Further, since the washing toilet seat device 10 is provided with a plurality of discharge ports 52 formed in a round hole shape on the end face 50c, an appropriate number and diameter of discharge ports 52 are compared according to the required amount of washing water. It can be easily formed.

In the above-described embodiment, the cleaning water is discharged from the discharge port 52 of the shutter 50 to perform the nozzle cleaning regardless of whether the local cleaning nozzle is advancing, locally cleaning, or retracting, but the nozzle cleaning is limited to this. is not it. Here, FIG. 9 is a flowchart showing an example of the nozzle unit operation process of the modified example. In the modified example, the same step number is assigned to the same process as the nozzle unit operation process of the embodiment, and the description thereof will be omitted.

In the nozzle unit operation process of the modified example of FIG. 9, when the local cleaning nozzle reaches the cleaning position in S130, the discharge of cleaning water is completed from the discharge port 52 of the shutter 50 and the nozzle cleaning is completed (S135). Further, when the local cleaning is completed in S160, the cleaning water is started to be discharged from the discharge port 52 of the shutter 50 to start the nozzle cleaning (S165), and when the local cleaning nozzle reaches the accommodation position in S180, the nozzle cleaning is performed in S190. finish. As described above, in the modified example, the cleaning water is not discharged from the discharge port 52 of the shutter 50 during the local cleaning, and the cleaning water is discharged from the discharge port 52 while the local cleaning nozzle is advancing and retreating to perform nozzle cleaning. Do it. As a result, as in the embodiment, the outer surface of the local cleaning nozzle is wetted with cleaning water during movement at the start of local cleaning, or dirt adhering to the outer surface of the local cleaning nozzle during movement at the end of local cleaning. It can be removed, and the user's anxiety about hygiene can be dispelled from the sound of the washing water on the move. The local cleaning nozzle is not limited to cleaning the nozzle with the shutter 50 during forward movement and backward movement, and the nozzle cleaning may be performed during either forward movement or backward movement. Further, the nozzle cleaning may be performed while the local cleaning nozzle is advancing and during the local cleaning, or the nozzle cleaning may be performed during the local cleaning and the retreating of the local cleaning nozzle.

In this modified example, since the discharge of the cleaning water from the discharge port 52 of the shutter 50 and the discharge of the cleaning water from the local cleaning nozzle are not performed at the overlapping timing, the switching destination 1 of the flow path switching valve 28 is 1. As a result, the shutter 50 (supply port 53) can be connected. Then, while the local cleaning nozzle is advancing, it is switched to the shutter 50 (supply port 53) side, and when the local cleaning nozzle reaches the cleaning position, it is switched to the local cleaning nozzle (tail cleaning nozzle 21 or bidet cleaning nozzle 22) side, and local cleaning is performed. The flow path switching valve 28 may be controlled so as to switch to the shutter 50 side while the local cleaning nozzle is retracting after completion. As a result, the on-off valve 29 is not required, and a simpler configuration can be achieved.

In the embodiment, the supply port 53 of the shutter 50 has an inverted L shape, but the present invention is not limited to this. For example, as shown in the shutter 150 of the modified example of FIG. 10, the supply port 153 may be formed so as to extend vertically from the back surface 50b of the shutter 150.

In the embodiment, the discharge port 52 of the shutter 50 is formed in a round hole shape, but the present invention is not limited to this, and any shape may be used as long as the cleaning water can be discharged. For example, as shown in the shutter 250 of the modified example of FIG. 11, the discharge port 252 may be formed in a horizontally long slit shape extending in the left-right direction. The inner dimension (width in the left-right direction) of the slit of the discharge port 252 can be set according to the left-right width of the local cleaning nozzle. For example, the internal dimensions of the slit may be substantially the same as the diameter of the local cleaning nozzle of FIG. 7 (a), or substantially the same as the minor axis length of the local cleaning nozzle of FIG. 7 (b), or the length of the local cleaning nozzle of FIG. 7 (c). It can be substantially the same as the maximum width of the local cleaning nozzle, or can be substantially the same as the width or maximum width of the flat portion of the local cleaning nozzle of FIGS. 7 (d) and 7 (e). By discharging the cleaning water from such a slit-shaped discharge port 252, the cleaning water can be evenly applied to the upper part of the outer surface of the local cleaning nozzle. It is possible to appropriately prevent the adhesion of dirt and remove the attached dirt over the entire upper surface.

In the embodiment, the supply port 53 is provided on the back surface 50b of the shutter 50, but the present invention is not limited to this. For example, as shown in the shutter 350 of the modified example of FIG. 12, the hollow portion of either one of the left and right rotation shafts of the shutter 350 (the rotation shaft 351 on the right side in FIG. 12) may be used as the supply port 353. good. That is, the rotating shaft 351 is formed in a hollow shaft shape, and the hollow portion is also used as the supply port 353. Although not shown, the rotation shaft 351 is rotatably supported by being fitted into an insertion hole of a support member provided in the toilet seat device main body 11. By doing so, it is possible to suppress the occurrence of layout restrictions when the nozzle cleaning by the shutter 50 is performed as a compact configuration in which the supply port 353 is provided on the rotating shaft 351.

Further, in addition to the nozzle cleaning by the shutter 50, the nozzle cleaning by the cleaning device provided in the nozzle cover 40 may be performed. FIG. 13 is an external perspective view of the nozzle unit 20B of the modified example, FIG. 14 is an external perspective view of the in-cover washer 55, and FIG. 15 is a flowchart showing a nozzle unit operation process of the modified example. In FIG. 15, the same step numbers as those of the nozzle unit operation process of FIG. 9 are assigned the same step numbers, and the description thereof will be omitted. As shown in FIGS. 13 and 14, the nozzle unit 20B of the modified example includes an in-cover cleaning device 55 capable of discharging cleaning water toward the local cleaning nozzle in the nozzle cover 40B (accommodation position), and covers the nozzle unit 20B. The internal washer 55 is configured to be able to discharge the cleaning water supplied from the supply port 57 from the plurality of discharge ports 56. Each discharge port 56 is located on the side of the local cleaning nozzle in a state where the in-cover washer 55 is attached to an opening (not shown) of the nozzle cover 40B (upper cover member 43B). Although not shown, a supply pipe (hose) connected to the flow path switching valve 28 is connected to the supply port 57. The in-cover washer is not limited to the examples of FIGS. 13 and 14, and the length in the front-rear direction is shortened so that the cleaning water is applied only to a part of the local cleaning nozzle in the axial direction (for example, only the tip and the center). May be used as a discharger.

In the nozzle unit operation process of FIG. 15, when the start of local cleaning is instructed in S100, the flow path switching valve 28 is switched and the cleaning water is discharged from the discharge port 56 of the in-cover washer 55 to start the nozzle cleaning. At the same time (S105), nozzle cleaning by the shutter 50 is started in S110. Then, when the local cleaning nozzle reaches the cleaning position in S130, the nozzle cleaning by the in-cover washer 55 is completed (S132), and the nozzle cleaning by the shutter 50 is completed in S135. Further, when the local cleaning is completed in S160, the nozzle cleaning by the shutter 50 is started in S165, and the nozzle cleaning is performed by switching the flow path switching valve 28 and discharging the cleaning water from the discharge port 56 of the in-cover washer 55. Start (S167). Then, when the local cleaning nozzle reaches the accommodation position in S180, the nozzle cleaning by the shutter 50 is completed in S190, and the nozzle cleaning by the in-cover cleaning device 55 is completed (S195). In this way, the synergistic effect of the nozzle cleaning by the shutter 50 and the nozzle cleaning by the in-cover cleaning device 55 further suppresses the adhesion of dirt to the outer surface of the local cleaning nozzle and more reliably removes the attached dirt. Can be removed. It should be noted that the nozzle cleaning by the in-cover cleaning device 55 is continued for a predetermined time after the local cleaning nozzle reaches the accommodation position in S180, and the nozzle cleaning by the in-cover cleaning device 55 is completed when the predetermined time elapses. May be good. Further, in this modification, as in the embodiment, the nozzle cleaning by the shutter 50 is continuously performed from the instruction to start the local cleaning until the local cleaning nozzle reaches the accommodation position through the local cleaning. good.

In the embodiment, the nozzle cleaning by the shutter 50 is performed in the nozzle unit operation processing performed by the control device 60, but the present invention is not limited to this, and a cleaning switch for instructing the nozzle cleaning by the shutter 50 is provided on the operation panel 14. It may be provided and the nozzle cleaning may be performed based on the operation instruction from the user. In this case, when the cleaning switch of the operation panel 14 is operated, the local cleaning nozzle is advanced and the cleaning water is discharged from the discharge port 52 of the shutter 50 opened by the advance of the local cleaning nozzle. As a result, the user can perform the cleaning work of the buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 while using the cleaning water discharged from the discharge port 52. Further, when the cleaning switch is operated again or the stop switch is operated, the local cleaning nozzle may be retracted, and when the accommodation position is reached, the discharge of the cleaning water from the discharge port 52 may be terminated. .. The buttocks cleaning nozzle 21 and the bidet cleaning nozzle 22 may be advanced at the same time by operating the cleaning switch, or may be advanced one by one each time the cleaning switch is operated.

In the embodiment, two cleaning nozzles, a tail cleaning nozzle 21 and a bidet cleaning nozzle 22, are provided, but the present invention is not limited to this, and three or more cleaning nozzles may be provided, or one cleaning nozzle may be provided. It may be provided with a cleaning nozzle.

The correspondence between the main elements of the present embodiment and the main elements of the invention described in the column of means for solving the problem will be described. In the present embodiment, the washing toilet seat device 10 corresponds to the "washing toilet seat device", the tail washing nozzle 21 and the bidet washing nozzle 22 correspond to the "local washing nozzle", and the nozzle cover 40 corresponds to the "accommodation part". The shutter 50 corresponds to the "shutter", the rotation shaft 51 corresponds to the "rotation shaft", and the discharge port 52 corresponds to the "discharge port". The control device 60 corresponds to a "control device". The supply port 53 corresponds to the “supply port”.

The correspondence between the main elements of the present embodiment and the main elements of the invention described in the column of means for solving the problem is the invention described in the column of the means for solving the problem in the present embodiment. Since it is an example for concretely explaining a mode for carrying out the above, the elements of the invention described in the column of means for solving the problem are not limited. That is, the interpretation of the invention described in the column of means for solving the problem should be performed based on the description in the column, and the present embodiment is the invention described in the column of means for solving the problem. It is just a concrete example of.

Although the embodiments for carrying out the present invention have been described above, the present invention is not limited to these embodiments, and can be implemented in various embodiments without departing from the gist of the present invention. Of course.

The present invention can be used in the manufacturing industry of a washing toilet seat device and the like.

1 toilet bowl, 10 flush toilet seat device, 11 toilet seat device body, 12 toilet seat, 13 toilet lid, 14 operation panel, 15 seating sensor, 20, 20B nozzle unit, 21 tail cleaning nozzle, 22 bidet cleaning nozzle, 23 water supply pressure reducing valve, 25 Heat exchange unit, 27 flow control valve, 28 flow path switching valve, 29 on-off valve, 29a shutter supply path, 31 toilet cleaning nozzle drive unit, 32 bidet cleaning nozzle drive unit, 40, 40B nozzle cover, 41 lower cover member, 42 Engagement Claw, 43,43B Top Cover Member, 44 Engagement Groove, 45 Front Wall Member, 45a, 45b Opening, 50, 150, 250, 350 Shutter, 50a Front, 50b Back, 50c End, 51,351 Rotation Shaft, 52,252 discharge port, 53,153,353 supply port, 54 supply flow path, 55 in-cover cleaner, 56 discharge port, 57 supply port, 60 control device.

Claims (7)

A local cleaning nozzle that performs local cleaning that discharges cleaning water toward the user's local area,
An accommodating portion that accommodates the local cleaning nozzle so as to allow the local cleaning nozzle to move back and forth between the accommodating position and the cleaning position in front of the accommodating position.
A flat plate-like member arranged in front of the accommodating portion, the closed state in which the tip of the local cleaning nozzle at the accommodating position is covered with a flat plate surface, and the above-mentioned so as to be able to advance from the accommodating position. A shutter that rotates around the rotation axis in the open state that exposes the local cleaning nozzle,
With
The shutter is a washing toilet seat device provided with a discharge port capable of discharging washing water to the local washing nozzle in an open state on an end surface facing the rotating shaft across the flat plate surface. The washing toilet seat device according to claim 1.
The cleaning toilet seat device is a surface that faces downward when the shutter is closed and faces the front side in the advancing / retreating direction of the local washing nozzle when the shutter is open. The washing toilet seat device according to claim 1 or 2.
The shutter opens and closes in conjunction with the advance / retreat movement of the local cleaning nozzle.
During the movement of the local cleaning nozzle from the accommodation position to the cleaning position at the start of the local cleaning and / or during the movement of the local cleaning nozzle from the cleaning position to the accommodation position at the end of the local cleaning. , A washing toilet seat device including a control device for controlling the water supply to the shutter so as to discharge the washing water from the discharge port. The washing toilet seat device according to claim 3.
The control device controls the water supply to the shutter so that the cleaning water is discharged from the discharge port even while the local cleaning nozzle is discharging the cleaning water at the cleaning position during the local cleaning. Cleaning toilet seat device. The washing toilet seat device according to any one of claims 1 to 4.
The shutter is a washing toilet seat device in which a plurality of the discharge ports formed in a round hole shape are provided in a range above the local washing nozzle on the end face. The washing toilet seat device according to any one of claims 1 to 4.
The shutter is a washing toilet seat device in which the discharge port formed in a horizontally long slit shape is provided in a range above the local washing nozzle on the end face. The washing toilet seat device according to any one of claims 1 to 6.
The shutter is a washing toilet seat device in which the rotating shaft is formed in a hollow shaft shape, and the hollow portion of the rotating shaft is used as a supply port for washing water to the discharge port.

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