JP7424152B2 - Cleaning toilet seat device - Google Patents

Description

The present invention relates to a clean toilet seat device.

Conventionally, as this type of toilet seat device, it has been proposed to clean the human body's private parts by moving the cleaning nozzle that discharges cleaning water from the discharge port from the standby position to the private parts cleaning position. ing. For example, Patent Document 1 describes a cleaning nozzle in which a cover is provided to cover the entire circumference of the nozzle at the discharge port position of the cleaning nozzle in the standby position. The cleaning water discharged from the discharge port flows between the cleaning nozzle and the cover, thereby cleaning the area around the discharge port of the cleaning nozzle. Further, Patent Document 2 discloses that a nozzle cleaning means that moves (rotates) above the cleaning nozzle in conjunction with the forward and backward movement of the cleaning nozzle is provided on the front side of a case (cover) that houses the cleaning nozzle, and A device is described that is provided with a shutter that opens and closes the opening of the case in conjunction with rotation. Then, when the cleaning nozzle advances, cleaning water is discharged from the nozzle cleaning means that has moved above the cleaning nozzle to clean the cleaning nozzle, and the scattering of the cleaning water that bounces off the cleaning nozzle is suppressed by a shutter. .

Patent No. 5665014 Patent No. 5605579

However, with the configuration of Patent Document 1, only the tip of the cleaning nozzle can be cleaned, and it is insufficient to remove dirt from areas other than the tip. Further, in the configuration of Patent Document 2, since the cleaning water is discharged only from above the cleaning nozzle, there is a possibility that the entire circumference of the cleaning nozzle cannot be reliably washed. In addition, although the shutter in the open state suppresses the splashing of washing water above the washing nozzle, it is not sufficient to prevent the washing water from scattering in any direction other than above, so increasing the force of the washing water in order to improve the washing effect will cause the water to spread around the surrounding area. Cleaning water and dirt may be scattered. Therefore, there is still room for improvement in order to properly clean the cleaning nozzle.

The main object of the present invention is to properly clean a cleaning nozzle while suppressing the scattering of cleaning water and dirt.

The present invention employs the following means to achieve the above-mentioned main objective.

The cleansing toilet seat device of the present invention includes:
A cleaning toilet seat device that cleans private parts using a cylindrical cleaning nozzle,
a drive unit that moves the cleaning nozzle forward and backward to a private area cleaning position;
A cleaning water channel is formed so that cleaning water flows all around between an inner peripheral surface through which the cleaning nozzle can be inserted and an outer peripheral surface of the cleaning nozzle, and when the cleaning water is supplied, it is sucked in by an ejector effect. a nozzle washer that mixes the air and introduces the mixed air into the cleaning channel from the inlet;
a water supply unit that supplies cleaning water to the nozzle washer;
a control device that controls the driving unit and the water supply unit so as to wash the cleaning nozzle by flowing cleaning water into the cleaning channel of the nozzle washer while moving the cleaning nozzle;
The main point is to have the following.

The cleansing toilet seat device of the present invention has a cleansing channel formed so that cleansing water flows along the entire circumference between the inner peripheral surface through which the cleaning nozzle can be inserted and the outer peripheral surface of the cleaning nozzle, and the cleansing water is supplied. Then, a nozzle washer is provided which mixes the air sucked in by an ejector effect and introduces the air into the cleaning channel from the inlet. Then, while moving the cleaning nozzle, cleaning water is flowed into the cleaning channel of the nozzle washer to clean the cleaning nozzle. Thereby, the entire circumference of the outer peripheral surface of the cleaning nozzle can be cleaned over the entire length. In addition, by mixing air into the washing water to form a foam, it is possible to suppress the scattering of the washing water and make it easier to remove dirt. Therefore, the cleaning nozzle can be appropriately cleaned while suppressing the scattering of cleaning water and dirt.

In the cleansing toilet seat device of the present invention, the nozzle washer has an annular waterway formed in a concave shape outward in the radial direction as the cleansing waterway, and the gap between the inner peripheral surface and the outer peripheral surface of the cleaning nozzle is , it may be formed so that the front side of the annular waterway is larger than the rear side of the annular waterway. In this way, it is possible to encourage the cleaning water flowing through the annular waterway to be discharged to the front side and prevent dirt from accumulating on the rear side.

In the cleansing toilet seat device of the present invention, the nozzle washer may have a drainage groove formed in an upper portion of the inner circumferential surface that communicates with the cleaning channel and extends forward. In this way, the upper surface of the cleaning nozzle can be cleaned with the cleaning water discharged from the drain while promoting the discharge of the cleaning water flowing through the annular waterway to the front side.

In the flushing toilet seat device of the present invention, the nozzle washer is configured such that the introduction port is formed such that the direction of introduction of the cleaning water is tangential to the inner circumferential surface, and the cleaning water channel extends forward from the introduction port. It may have a spiral waterway formed in a spiral shape. In this way, the cleaning water will circulate around the outer circumferential surface of the cleaning nozzle and be discharged from the front side of the nozzle washer while cleaning, making it possible to more reliably prevent dirt from accumulating on the rear side. can.

The cleansing toilet seat device of the present invention includes a cylindrical cover that accommodates the cleaning nozzle, the nozzle washer is attached to the front end of the cover, and the drive unit is configured such that the front end surface of the cleaning nozzle is The cleaning nozzle may be moved back to a position within the width of the cleaning channel of the nozzle washer in the front-rear direction. In this way, the front end surface of the cleaning nozzle can be cleaned with the cleaning water discharged from the cleaning channel to remove dirt.

1 is an external perspective view of a toilet bowl 1 to which a cleansing toilet seat device 10 is attached. FIG. 1 is a configuration diagram showing an outline of the configuration of a cleansing toilet seat device 10. FIG. FIG. 4 is an explanatory diagram showing the mounting position of the nozzle washer 50. FIG. FIG. 3 is an external perspective view showing the advanced state of the butt washing nozzle 32. FIG. 3 is an external perspective view showing a state in which the butt washing nozzle 32 is housed. 3 is a configuration diagram of a nozzle cover 35 and a nozzle washer 50. FIG. 7 is a sectional view taken along line AA in FIG. 6. FIG. FIG. 5 is an explanatory diagram showing how wash water flows through an annular waterway 55. FIG. 7 is a sectional view taken along line BB in FIG. 6. FIG. 5 is a configuration diagram showing the internal configuration of a nozzle cleaning device 50. FIG. It is a flowchart which shows an example of nozzle cleaning processing. It is a BB sectional view of a nozzle cleaning device 50B of a modified example. FIG. 6 is an explanatory diagram showing the positional relationship between a modified nozzle washer 50C and a front end surface 33 of a buttock cleaning nozzle 32. It is an explanatory view showing a positional relationship between a nozzle washer 50C of a modified example and a front end surface 33B of a buttock cleaning nozzle 32B. FIG. 3 is an external perspective view of a configuration in which a shutter 38 is provided in front of a nozzle washer 150. FIG. 7 is an explanatory diagram showing a positional relationship between a nozzle washer 150 of a modified example, a front end surface 33 of a buttock cleaning nozzle 32, and a shutter 38; It is an external perspective view of the nozzle cleaning device 250 of a modification. It is a perspective view which shows the internal structure of the nozzle washer 250 of a modification. FIG. 6 is an explanatory diagram showing the mounting position of a modified example of the nozzle washer 50. FIG.

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

FIG. 1 is an external perspective view of a toilet bowl 1 to which a cleansing toilet seat device 10 is attached, and FIG. 2 is a configuration diagram showing an outline of the configuration of the cleansing toilet seat device 10. In this embodiment, the left-right direction, front-back direction, and up-down direction are as shown in FIG.

The toilet bowl 1 is a Western-style toilet bowl arranged in a toilet room, and a flushing toilet seat device 10 is installed on the top surface of the toilet bowl 1. As shown in FIG. 1, the cleansing toilet seat device 10 includes a toilet seat device main body 11 installed at the rear of the toilet bowl 1, a toilet seat 12 rotatably supported by the toilet seat device main body 11, and a toilet seat device main body 11 that is rotatably supported by the toilet seat device main body 11. It includes a freely supported toilet lid 13 and an operation panel 14 operated by the user. Further, as shown in FIG. 2, the cleansing toilet seat device 10 includes a nozzle unit 30 having a water supply channel 20 for supplying cleansing water, a butt cleansing nozzle 32 and a bidet cleansing nozzle 42 for cleaning private parts of the human body, and a cleansing toilet seat. A control device 18 that controls the entire device 10 is provided.

The water supply channel 20 includes a water stop solenoid valve 22 that controls the supply of water (washing water) from a water supply source, a heat exchanger 24 that heats the washing water, and a flow rate adjustment device for the washing water that flows through the heat exchanger 24. It also includes a flow path switching valve 26 that switches the supply destination. Although not shown in the drawings, the water supply channel 20 is also provided with a water temperature sensor that detects the temperature of the wash water, a flow rate sensor that detects the flow rate of the wash water, and the like. The heat exchanger 24 has a built-in ceramic heater or the like having a rated output of, for example, about 1200 W, and is configured as an instant heating unit that can instantaneously heat the cleaning water. The flow path switching valve 26 is configured as a rotary disk valve driven by a stepping motor, for example, and can switch the supply destination while adjusting the flow rate of the cleaning water supplied through the water supply port connected to the water supply channel 20. It becomes.

The nozzle unit 30 includes a butt cleaning nozzle 32, a bidet cleaning nozzle 42, and a nozzle washer 50. FIG. 3 is an explanatory diagram showing the mounting position of the nozzle washer 50, FIG. 4 is an external perspective view showing the extended state of the butt washing nozzle 32, and FIG. 5 is an illustration showing the accommodated state of the butt washing nozzle 32. It is an external perspective view. 6 is a configuration diagram of the nozzle cover 35 and the nozzle cleaner 50, FIG. 7 is a sectional view taken along the line AA in FIG. 6, and FIG. 8 is an explanatory diagram showing how cleaning water flows through the annular waterway 55. 9 is a sectional view taken along the line BB in FIG. 6. FIG. 10 is a configuration diagram showing the internal configuration of the nozzle cleaning device 50. Note that FIG. 6(a) shows a top view, and FIG. 6(b) shows a front view. Moreover, FIG. 10 shows the upper half of the inner peripheral surface of the nozzle cleaner 50.

The butt washing nozzle 32 is a cylindrical member that has a flow path for washing water formed therein and a discharge port 32a formed on the top surface of its tip, and is housed in a cylindrical nozzle cover 35. The rear end of the nozzle cover 35 is provided with a water supply connection part 36 that is connected to a water supply hose, and a drive part 37 that moves the butt washing nozzle 32 forward and backward to the private part washing position. The water supply connection part 36 is connected to the flow path switching valve 26 via a water supply hose, and introduces the wash water supplied from the flow path switching valve 26 into the flow path in the butt washing nozzle 32. The drive unit 37 includes, for example, a motor that rotates a pinion gear, and a rack (flexible rack) that meshes with the pinion gear and is connected to the butt washing nozzle 32 and is movable as the pinion gear rotates, and rotates the motor in the forward or reverse direction. to move the butt washing nozzle 32. Note that FIG. 4 shows an advanced state in which the butt washing nozzle 32 has advanced to the front private part washing position, and FIG. state).

The bidet cleaning nozzle 42 is a cylindrical member configured similarly to the butt cleaning nozzle 32, and is housed in a cylindrical nozzle cover. Further, at the rear end of the nozzle cover, a water supply connection part connected to a water supply hose so as to introduce cleaning water into the flow path inside the bidet cleaning nozzle 42, and a drive part 47 that moves the bidet cleaning nozzle 42 forward and backward in the front and rear directions. and is provided. These have the same configuration as the water supply connection part 36 and the drive part 37 of the butt washing nozzle 32, so the explanation will be omitted.

The nozzle washer 50 is attached to the front end of the nozzle cover 35 of the butt cleaning nozzle 32 and the front end of the nozzle cover of the bidet cleaning nozzle 42, and is housed in the toilet seat device main body 11 (FIG. 3). reference). This nozzle washer 50 cleans the outer surfaces of the butt cleaning nozzle 32 and the bidet cleaning nozzle 42 using the cleaning water supplied from the flow path switching valve 26. Below, the nozzle washer 50 of the butt cleaning nozzle 32 will be explained as an example.

The nozzle washer 50 is configured as an annular member through which the butt cleaning nozzle 32 can be inserted (movable), and has an engagement hole in an engagement claw 35a formed near the front end of the nozzle cover 35. It is attached to the nozzle cover 35 by engaging 50a. The nozzle washer 50 includes a wash water introduction part 51 (see FIG. 7) that introduces wash water into the interior (inner circumferential surface), and an annular water channel 55 formed on the inner circumferential surface. The wash water introduction part 51 is provided so as to extend rearward from the outer peripheral surface, and has a water supply connection part 52 whose end supply port 52a is connected to the flow path switching valve 26 via a water supply hose. Further, as shown in FIG. 7, the cleaning water introduction part 51 includes an introduction port 51a that introduces the cleaning water supplied from the water supply connection part 52 into the inner peripheral surface, and an intake port that communicates with the introduction port 51a and sucks air. 51b are formed. The wash water introduction section 51 supplies the wash water supplied from the water supply connection section 52 with air sucked from the suction port 51b due to the ejector effect, and then flows the end flow (foamy wash water) from the introduction port 51a to the annular waterway 55. to be introduced.

The annular waterway 55 is formed over the entire circumference of the inner peripheral surface of the nozzle washer 50 in the circumferential direction, and in this embodiment is formed in an annular shape so as to be concavely depressed radially outward from the inner peripheral surface. Therefore, the annular waterway 55 allows the cleaning water introduced from the inlet 51a to flow between the inner peripheral surface of the nozzle washer 50 and the outer peripheral surface of the butt cleaning nozzle 32 over the entire circumference in the circumferential direction. (See Figure 8). As shown in FIG. 10, the nozzle washer 50 has a gap t1 between an inner circumferential surface 55f on the front side of the annular water channel 55 and an outer circumferential surface of the butt cleaning nozzle 32. 55b and the outer peripheral surface of the butt cleaning nozzle 32 is formed to be larger than the gap t2. That is, since the gap between the front and rear of the concave annular waterway 55 and the outer peripheral surface of the butt washing nozzle 32 is larger on the front side than on the rear side, the washing water flowing through the annular waterway 55 can be discharged to the front side. .

Further, in the nozzle washer 50, a drain groove 56 is formed on the upper side of the inner peripheral surface 55f on the front side of the annular water channel 55 (see FIG. 10), and a drain groove 57 is formed on the lower side. (See FIG. 6(b)). The drainage groove 56 on the upper side is formed to communicate with the annular waterway 55 and extend forward from the annular waterway 55, and has a plurality (for example, three) of drainage grooves 56a and drainage grooves 56b. There is. The drain groove 56a is formed to extend straight along the front-rear direction, and the drain groove 56b is formed to extend obliquely to the front-rear direction. Here, a part of the wash water introduced from the inlet 51a flows through the annular waterway 55 along the circumferential direction (left direction defined in FIG. 10). Therefore, the drain groove 56b is formed at an acute angle with respect to the flow direction of the washing water, and the force of the washing water passing through the drain groove 56b in the circumferential direction is suppressed. It will be discharged relatively straight along the front-rear direction. Thereby, the washing water discharged from the drainage groove 56b can easily flow to the front end side of the butt washing nozzle 32 in the advanced state. Although detailed illustration is omitted, the downstream drainage groove 57 is formed to communicate with the annular waterway 55 and to extend straight from the annular waterway 55 forward in the front-rear direction. Further, the drain groove 57 is formed at a position that is approximately symmetrical to the inlet 51a with respect to the center of the nozzle washer 50, that is, at a lower left position when viewed from the front. As shown in FIG. 8, the cleaning water introduced from the inlet 51a and flowing through the annular waterway 55 so as to be divided into two parts merges near the lower left position when viewed from the front, so the drain groove 57 is formed at the lower left position. can encourage discharge to the front side.

As shown in FIG. 2, the operation panel 14 includes a butt washing switch 14a for instructing butt washing, a bidet washing switch 14b for instructing bidet washing, a stop switch 14c for instructing to stop washing, and a switch for adjusting the temperature of washing water. A temperature adjustment switch 14d, a water force adjustment switch 14e for adjusting the cleaning strength (force) of the cleaning water, a nozzle cleaning switch 14f for instructing nozzle cleaning, and the like are provided.

Although not shown, the control device 18 is configured as a microcomputer centered on a CPU, and includes a ROM, a RAM, a timer, an input/output port, etc. in addition to the CPU. As shown in FIG. 2, the control device 18 receives an operation signal from the operation panel 14, a detection signal from an entry detection sensor 15 that detects the entry of a user into the toilet room, and a detection signal that detects the user's seating on the toilet seat 12. In addition to the detection signal from the occupancy detection sensor 16, a detection signal from a temperature sensor that detects the temperature of the washing water is inputted via the input port. The control device 18 also sends a drive signal to the water stop electromagnetic valve 22, a drive signal to the hot water heater of the heat exchanger 24, a drive signal to the flow path switching valve 26, and a drive signal to the drive parts 37 and 47 of the nozzle unit 30. The drive signal and the like are outputted via the output port. Note that the control device 18 can detect the positions of the butt cleaning nozzle 32 and the bidet cleaning nozzle 42 from the amount of rotation of each motor of the drive units 37 and 47 of the nozzle unit 30 and a position sensor (not shown).

Next, the operation of the thus configured cleansing toilet seat device 10, particularly the operation of cleaning the butt cleaning nozzle and the bidet cleaning nozzle, will be described. FIG. 11 is a flowchart showing an example of nozzle cleaning processing. The control device 18 executes this process while the power is on. In this nozzle cleaning process, the control device 18 determines, based on the operation signal from the operation panel 14, whether or not a private part cleaning (butt cleaning or bidet cleaning) starting operation has been performed (S100), and whether or not the nozzle cleaning starting operation has been performed. It is determined whether or not (S110), respectively. The determination in S100 is made based on whether either the bottom cleaning switch 14a or the bidet cleaning switch 14b has been operated, and the determination in S110 is made based on whether or not the nozzle cleaning switch 14f has been operated.

When the control device 18 determines that the private area cleaning starting operation has been performed, the control device 18 performs nozzle cleaning while advancing either the butt cleaning nozzle 32 or the bidet cleaning nozzle 42 (hereinafter simply referred to as the cleaning nozzle) that performs the current private area cleaning. Execute (S120). The process in S120 is performed by opening the water stop solenoid valve 22, switching the supply destination of the flow path switching valve 26 to the nozzle washer 50, and introducing the cleaning water mixed with air into the annular waterway 55 of the nozzle washer 50. This is performed by controlling the cleaning nozzle drive unit (either the drive unit 37 or 47) to move the cleaning nozzle forward to the private part cleaning position. As described above, the annular waterway 55 is formed to allow cleaning water to flow all around between the inner circumferential surface of the nozzle washer 50 and the outer circumferential surface of the cleaning nozzle, and the annular waterway 55 is formed so that the cleaning water flows all around the inner peripheral surface of the nozzle washer 50 and the outer peripheral surface of the cleaning nozzle. While inserting it, move it to the front cleaning position. Therefore, before starting private part cleaning, the entire circumference of the outer peripheral surface of the cleaning nozzle can be cleaned over its entire length. Then, the control device 18 determines whether the cleaning nozzle has reached the private part cleaning position (S130), and when determining that the cleaning nozzle has reached the private part cleaning position, ends the nozzle cleaning (S140). The process in S140 is performed by switching the supply destination of the flow path switching valve 26 from the nozzle washer 50 to the cleaning nozzle that performs private part cleaning, and stopping the supply of cleaning water to the nozzle washer 50. Further, through this process, cleaning water is discharged from the cleaning nozzle and private part cleaning is started.

Next, the control device 18 determines whether or not an operation to stop private part washing has been performed based on an operation signal from the stop switch 14c of the operation panel 14 (S150). When determining that the stop operation has been performed, the control device 18 performs nozzle cleaning while retracting the cleaning nozzle (S160). In the process of S160, the supply destination of the flow path switching valve 26 is switched to the nozzle washer 50, and while the aerated cleaning water is introduced into the annular waterway 55 of the nozzle washer 50, the drive unit of the cleaning nozzle is controlled. This is done by moving the cleaning nozzle back to the standby position. Then, the control device 18 determines whether the cleaning nozzle has reached the standby position (S170), and if it determines that the cleaning nozzle has reached the standby position, ends the nozzle cleaning (S180) and returns to S100. The process in S180 is performed by closing the water stop electromagnetic valve 22 and stopping the supply of cleaning water to the nozzle washer 50.

Further, when the control device 18 determines that the nozzle cleaning start operation has been performed in S110, the control device 18 selects one of the butt cleaning nozzles 32 and the bidet cleaning nozzles 42, or both cleaning nozzles (hereinafter simply referred to as cleaning nozzles). The nozzle cleaning is executed while moving back and forth (back and forth) (S190). The process in S190 involves opening the water stop solenoid valve 22, switching the supply destination of the flow path switching valve 26 to the nozzle washer 50, and introducing the air-mixed cleaning water into the annular waterway 55 of the nozzle washer 50. This is performed by controlling the drive unit of the cleaning nozzle to move the cleaning nozzle forward and backward. Note that the nozzle washer 50 of the butt washing nozzle 32 and the nozzle washer 50 of the bidet washing nozzle 42 may be connected to the flow path switching valve 26 separately, and the nozzles may be washed separately. Here, in at least one of the nozzle cleanings in S120, S160, and S190, the cleaning effect may be enhanced by flowing cleaning water with a stronger water force (larger amount of water) than when cleaning private parts. In such a case, the configuration is such that cleaning water with a stronger water force than the strongest water force that can be set by the water force adjustment switch 14e can be supplied from the flow path switching valve 26 to the nozzle washer 50. Then, in the nozzle cleaning, the control device 18 may control the flow path switching valve 26 so that cleaning water with a stronger water force (larger amount of water) than in the private part cleaning is supplied to the nozzle washer 50. Note that since the foamy wash water mixed with air is introduced into the annular waterway 55, it is possible to prevent the wash water from scattering even if the water force is increased.

Then, the control device 18 determines whether it is time to stop nozzle cleaning (S200). The determination in S200 may be made by determining whether or not an operation to stop nozzle cleaning has been performed based on an operation signal from the stop switch 14c of the operation panel 14, or by determining whether a predetermined nozzle cleaning time has elapsed. This may be done by determining whether or not. When the control device 18 determines that it is the timing to stop nozzle cleaning, it returns the cleaning nozzle to the standby position, completes the nozzle cleaning (S210), and returns to S100. The nozzle cleaning is completed in the same manner as S180.

In the above-described cleansing toilet seat device 10, while moving the cleansing nozzles (butt cleansing nozzle 32 and bidet cleansing nozzle 42), cleansing water flows into the annular waterway 55 formed all around the inner peripheral surface of the nozzle washer 50. Therefore, the entire circumference of the outer peripheral surface of the cleaning nozzle can be cleaned over the entire length. Furthermore, by mixing air into the cleaning water using the ejector effect, dirt can be easily removed while suppressing the splashing of the cleaning water. Therefore, the cleaning nozzle can be appropriately cleaned while suppressing the scattering of cleaning water and dirt.

Further, the nozzle washer 50 is formed such that the gap between the inner peripheral surface and the outer peripheral surface of the butt cleaning nozzle 32 is larger on the front side of the annular waterway 55 than on the rear side of the annular waterway 55. The cleaning water can be easily discharged to the front side, and dirt can be prevented from accumulating in the nozzle cover 35 due to the cleaning water being discharged to the rear side. In addition, since the nozzle washer 50 has a drain groove 56 formed on the upper side of the inner circumferential surface, while promoting the discharge of the cleaning water to the front side, the discharged cleaning water can be applied to the upper surface of the cleaning nozzle in the advanced state. can be washed.

In the embodiment described above, the nozzle cleaning was performed before and after the private part cleaning was started and when the nozzle cleaning start operation was performed, but the present invention is not limited to this. For example, it is possible to perform nozzle cleaning on one side before starting and after finishing private area cleaning, and not on the other side. Further, the nozzle cleaning may not be performed before or after the private part cleaning is started, but the nozzle cleaning may be performed when the nozzle cleaning starting operation is performed. Further, the nozzle cleaning may be performed when it is detected that the user has entered or left the room based on the detection signal from the room entry detection sensor 15, or when the user is detected to have entered or left the room based on the detection signal from the seating detection sensor 16. The nozzle may be cleaned when it is detected that the nozzle is unseated. Alternatively, the nozzle cleaning may be performed after the user leaves the room and a certain period of time has passed after the completion of the private part cleaning.

In the embodiment described above, the drain groove 56a extending straight along the front-rear direction and the drain groove 56b extending diagonally with respect to the front-rear direction are formed as the upper drain groove 56, but the drain groove 56 is not limited to this. Only the drain groove 56a may be formed, or only the drain groove 56b may be formed. Further, the number of drain grooves 56b is not limited to more than the number of drain grooves 56a, and the same number of drain grooves 56a and 56b may be formed, or the number of drain grooves 56a may be greater than the number of drain grooves 56b. Good too. In addition, although it is assumed that a drain groove extending straight along the front-rear direction is formed as the drain groove 57 on the lower side, a drain groove extending diagonally with respect to the front-rear direction may be formed as in the upper side. Alternatively, a plurality of drain grooves may be formed. Alternatively, one or both of the upper and lower drainage grooves 56 and 57 may not be formed. Even in this case, it is possible to discharge the cleaning water to the front side from the gap t<b>1 on the front side of the annular waterway 55 .

In the embodiment described above, the gap t1 on the front side of the annular waterway 55 is made larger than the gap t2 on the rear side, but the present invention is not limited to this, and the gap t2 on the rear side and the gap t1 on the front side may be the same. Further, although the annular waterway 55 is formed in a concave shape, it is not limited to this. FIG. 12 is a BB sectional view of a modified nozzle cleaning device 50B. As shown in the figure, a step is formed only on the rear side of the annular waterway 155, and no step is formed on the front side. Thereby, the front side gap t1' can be made larger than the gap t1 in the embodiment, and the discharge of the washing water to the front side can be further promoted. In this nozzle cleaning device 50B as well, the amount of water supplied may be set so that the cleaning water flows over the entire circumference of the annular waterway 155.

Further, the butt washing nozzle 32 and the nozzle washer 50 may be configured as in the following modified example, and the same applies to the bidet washing nozzle 42. FIG. 13 is an explanatory diagram showing the positional relationship between a modified nozzle washer 50C and a front end surface (tip surface) 33 of the butt washing nozzle 32, and shows a case where the butt washing nozzle 32 is in the standby position. In this modification, the standby position is a position where the front end surface 33 of the butt washing nozzle 32 falls within the width of the annular waterway 55 of the nozzle washer 50C in the front-rear direction, and the drive unit 37 moves the butt washing nozzle 32 to this standby position. It is configured to move (retreat). Thereby, the washing water flowing through the annular waterway 55 flows down along the front end surface 33, so that not only the outer circumferential surface of the butt washing nozzle 32 but also the front end surface 33 can be washed and dirt on the front end surface 33 can be removed.

FIG. 14 is an explanatory diagram showing the positional relationship between the modified nozzle washer 50C and the front end surface 33B of the butt washing nozzle 32B, and shows the case where the butt washing nozzle 32B is in the standby position. In this modification, the front end surface 33B of the butt cleaning nozzle 32B is formed to be obliquely inclined so as to protrude forward from the top toward the bottom. Further, the position where the upper end of the front end surface 33B falls within the width of the upper part of the annular waterway 55 in the front-rear direction is set as a standby position, and the drive unit 37 is configured to move the butt washing nozzle 32B back to this standby position. There is. This allows the cleaning water flowing through the annular waterway 55 to easily flow down along the slope of the front end surface 33B, so that dirt on the front end surface 33B can be effectively removed.

FIG. 15 is an external perspective view of a configuration in which the shutter 38 is provided in front of the nozzle washer 150, and FIG. 16 is a positional relationship between the nozzle washer 150 of a modified example, the front end surface 33 of the butt cleaning nozzle 32, and the shutter 38. FIG. The shutter 38 covers the front of the nozzle cover 35, that is, the tip of the butt washing nozzle 32 in the closed state shown in FIG. 15, and when the butt washing nozzle 32 advances, the back surface is pushed by the washing nozzle and becomes the open state. In this modification, as shown in FIG. 16, a predetermined interval is provided between the back surface of the shutter 38 in the closed state and the front end surface 33 of the cleaning nozzle 32, and the cleaning water flowing through the annular waterway 55 and discharged forward is is caused to flow down along the front end surface 33 between the shutter 38 and the shutter 38. Thereby, the front end surface 33 of the butt cleaning nozzle 32 can be cleaned and dirt on the front end surface 33 can be removed. Furthermore, the shutter 38 can reliably prevent washing water from scattering. In addition, in the nozzle washer 50C of FIG. 15, the water supply connection part 152 is provided along the left-right direction, but it may be provided along the front-rear direction similarly to the water supply connection part 52 of the embodiment. 12 to 15, the control device 18 controls at least one of a predetermined time period before the butt cleaning nozzle 32 starts moving from the standby position and a predetermined time period after the butt washing nozzle 32 finishes moving to the standby position. Then, you can supply cleaning water to the nozzle washer. Thereby, the front end surfaces 33, 33B can be appropriately cleaned.

FIG. 17 is an external perspective view of a modified nozzle washer 250, and FIG. 18 is a perspective view showing the internal configuration of the modified nozzle washer 250. In the nozzle washer 250, a water supply connection part 252 is provided along the left-right direction, and an inlet 251a is formed so that the direction of introduction of the cleaning water is tangential to the inner circumferential surface. Further, the nozzle washer 250 has a spiral water channel 255 spirally formed forward from the inlet 251a as a cleaning channel on the inner circumferential surface. Therefore, the cleaning water flowing in from the inlet 251a is discharged from the front side of the nozzle washer 250 while cleaning the outer peripheral surface of the cleaning nozzle. Therefore, the cleaning water flowing through the spiral water channel 255 is made difficult to flow to the rear side of the nozzle washer 250, and it is possible to more reliably prevent dirt from accumulating on the rear side. Note that the nozzle washer 150 in FIG. 15 may be configured similarly to the nozzle washer 250.

FIG. 19 is an explanatory diagram showing the mounting position of a modified example of the nozzle washer 50. As shown in the figure, a nozzle washer 50 is attached outside the toilet seat device main body 11. Even in this case, since the butt cleaning nozzle 32 can be inserted into the nozzle washer 50, the entire circumference of the outer peripheral surface of the butt cleaning nozzle 32 can be cleaned over the entire length, similarly to the embodiment. Moreover, even if there is no space to accommodate the nozzle washer 50 in the toilet seat device main body 11, the nozzle washer 50 can be attached and the cleaning nozzle can be appropriately cleaned.

The correspondence between the main elements of this embodiment and the main elements of the invention described in the column of means for solving the problems will be explained. In this embodiment, the cleansing toilet seat device 10 corresponds to a "cleaning toilet seat device", the butt cleaning nozzle 32 and the bidet cleaning nozzle 42 correspond to a "cleaning nozzle", the drive section 37 corresponds to a "drive section", and the nozzle The cleaning device 50 corresponds to a "nozzle cleaning device," the water supply channel 20 and the flow path switching valve 26 correspond to a "water supply section," and the control device 18 corresponds to a "control device." In addition, the annular waterway 55 corresponds to a "annular waterway (cleaning waterway)". The drain groove 56 on the upper side corresponds to a "drain groove". The spiral water channel 255 corresponds to a "spiral water channel (cleaning channel)". The nozzle cover 35 corresponds to a "cover".

Note that the correspondence relationship between the main elements of this embodiment and the main elements of the invention described in the column of means for solving the problem is the same as the correspondence relationship 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. Since this is an example for specifically explaining a mode for implementing the above, it is not intended to limit the elements of the invention described in the column of means for solving the problems. In other words, the interpretation of the invention described in the column of means for solving the problem should be based on the description in that column, and this embodiment is based on the invention described in the column of means for solving the problem. This is just one specific example.

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

INDUSTRIAL APPLICATION This invention can be utilized for the manufacturing industry of a cleansing toilet seat apparatus, etc.

1 Toilet bowl, 10 Cleaning toilet seat device, 11 Toilet seat device body, 12 Toilet seat, 13 Toilet lid, 14 Operation panel, 14a Butt cleaning switch, 14b Bidet cleaning switch, 14c Stop switch, 14d Temperature adjustment switch, 14e Water pressure adjustment switch, 14f Nozzle Cleaning switch, 15 Entrance detection sensor, 16 Seating detection sensor, 18 Control device, 20 Water supply channel, 22 Water stop solenoid valve, 24 Heat exchanger, 26 Flow path switching valve, 30 Nozzle unit, 32 Butt washing nozzle, 32a Discharge port , 33, 33B front end surface, 35 nozzle cover, 35a engaging claw, 36 water supply connection section, 37 drive section, 38 shutter, 42 bidet cleaning nozzle, 47 drive section, 50, 50B, 50C, 150, 250 nozzle washer, 50a Engagement hole, 51 Cleaning water introduction part, 51a, 251a Introduction port, 51b Suction port, 52, 152, 252 Water supply connection part, 52a Supply port, 55, 155 Annular waterway, 55f, 55b Inner peripheral surface, 56, 56a , 56b, 57 drainage ditch, 255 spiral waterway.

Claims (4)

A cleaning toilet seat device that cleans private parts using a cylindrical cleaning nozzle,
a drive unit that moves the cleaning nozzle forward and backward to a private area cleaning position;
A cleaning water channel is formed so that cleaning water flows all around between an inner peripheral surface through which the cleaning nozzle can be inserted and an outer peripheral surface of the cleaning nozzle, and when the cleaning water is supplied, it is sucked in by an ejector effect. a nozzle washer that mixes the air and introduces the mixed air into the cleaning channel from the inlet;
a water supply unit that supplies cleaning water to the nozzle washer;
a control device that controls the driving unit and the water supply unit so as to wash the cleaning nozzle by flowing cleaning water into the cleaning channel of the nozzle washer while moving the cleaning nozzle;
Equipped with
The nozzle washer has an annular waterway formed as the washing waterway in a concave shape radially outward, and a gap between the inner circumferential surface and the outer circumferential surface of the washing nozzle is on the front side of the annular waterway. It is formed to be larger than the rear side of the annular waterway.
Cleaning toilet seat device. The cleansing toilet seat device according to claim 1 ,
The nozzle washer has a drain groove formed in an upper part of the inner circumferential surface that communicates with the washing water channel and extends forward. The washing toilet seat device. A cleaning toilet seat device that cleans private parts using a cylindrical cleaning nozzle,
a drive unit that moves the cleaning nozzle forward and backward to a private area cleaning position;
A cleaning water channel is formed so that cleaning water flows all around between an inner peripheral surface through which the cleaning nozzle can be inserted and an outer peripheral surface of the cleaning nozzle, and when the cleaning water is supplied, it is sucked in by an ejector effect. a nozzle washer that mixes the air and introduces the mixed air into the cleaning channel from the inlet;
a water supply unit that supplies cleaning water to the nozzle washer;
a control device that controls the driving unit and the water supply unit so as to wash the cleaning nozzle by flowing cleaning water into the cleaning channel of the nozzle washer while moving the cleaning nozzle;
Equipped with
In the nozzle washer, the introduction port is formed such that the direction of introduction of the washing water is tangential to the inner circumferential surface, and the washing water channel has a spiral shape spirally formed forward from the introduction port. A flushing toilet seat device with a water channel. The cleansing toilet seat device according to any one of claims 1 to 3 ,
comprising a cylindrical cover that accommodates the cleaning nozzle,
The nozzle washer is attached to the front end of the cover,
The cleaning toilet seat device, wherein the drive unit retreats the cleaning nozzle to a position where a front end surface of the cleaning nozzle falls within a width of the cleaning channel of the nozzle washer in the front-rear direction.

Images