JP7439574B2 - Local cleaning device - Google Patents

Description

The present disclosure relates to a private parts cleaning device that is attached to a toilet bowl.

Conventionally, a private parts cleaning unit is attached to a nozzle base of a main body that rotatably supports a toilet seat and has a nozzle that discharges cleansing water from a private part cleaning hole toward the private parts of the human body, and a private parts cleaning hole of the nozzle is cleaned. A private part cleaning device including a nozzle cleaning section for cleaning is known (for example, see Patent Document 1). In this private part cleaning device, the nozzle cleaning section includes a cleaning base plate provided for the nozzle base, a cleaning cover attached to the cleaning base plate, and a cleaning cover for cleaning the private parts of the nozzle in an internal space formed by the cleaning base plate and the cleaning cover. and a cylindrical body arranged to cover the periphery of the cleaning hole. A nozzle cleaning hole is formed in the cylindrical body, and the area around the local cleaning hole of the nozzle is cleaned by cleaning water that is supplied to the internal space from the outside and flows into the cylindrical body from the nozzle cleaning hole.

Furthermore, hot water washing devices are known that include a nozzle that moves back and forth so that it can be used in a position where it protrudes from the housing on the upper surface of the rear part of the toilet bowl to clean the human buttocks, and a retracted position where it is retracted into the housing (for example, , see Patent Document 2). This hot water cleaning device includes a case surrounding a nozzle in a retracted position retracted into a housing, a nozzle cleaning water supply means for supplying water for cleaning the nozzle into the case, and a case connected to the rear end of the nozzle. It includes a water supply pipe that is inserted into an opening provided on the rear surface of the case. A flange is provided at the rear end of the nozzle, and an O-ring is attached to the rear surface of the flange. When the flange of the nozzle retreats until it contacts the rear surface of the case, the O-ring comes into close contact with the rear surface of the case, and the opening is closed in a watertight manner. Thereby, the nozzle that has been retracted into the case can be immersed in water for cleaning, or the nozzle inside the case can be cleaned by spraying water on it.

Furthermore, a sanitary cleaning device that suppresses the adhesion of dirt by forming cleaning foam on the surface of a cleaning nozzle is also known (for example, see Patent Document 3). This sanitary cleaning device consists of a heat exchanger that heats the cleaning water, a cleaning nozzle drive unit that drives the cleaning nozzle forward and backward, a foam generation unit that generates cleaning foam containing detergent, and a cleaning unit that generates cleaning water or cleaning foam on the inside of the toilet bowl. The spray nozzle includes a spray nozzle that discharges water, a spray nozzle drive unit that rotates the direction of the discharge port of the spray nozzle, and an on-off valve that opens and closes a water channel to the spray nozzle. Thereby, the cleaning nozzle can be cleaned by discharging the cleaning foam generated in the foam generating section from the spray nozzle onto the surface of the cleaning nozzle. Also, conventionally, a cleaning toilet is known that includes a toilet main body, a toilet seat, and a body cleaning nozzle that spouts water that does not contain a disinfectant or a cleaning agent (for example, see Patent Document 4). In this flushing toilet bowl, the human body cleaning nozzle is cleaned by spraying a disinfectant or a cleaning agent from the nozzle cleaning nozzle onto the surface of the body cleaning nozzle during, after, or just before the water is jetted.

Patent No. 6260156 Patent No. 4211544 Japanese Patent Application Publication No. 2016-196732 JP2012-052331A

In the private part cleaning device described in Patent Document 1, cleaning water for cleaning the nozzle is introduced into a cylindrical body that covers the nozzle through an internal space formed by a cleaning base plate and a cleaning cover. . As a result, the water flow within the cylindrical body becomes weak, and dirt adhering to the nozzle may not be sufficiently removed. In addition, in the hot water cleaning device described in Patent Document 2, since the nozzle is cleaned while stopped inside the case, dirt removed from the nozzle may remain in the case and become unsanitary. There is also a risk that dirt may get into the nozzle's spout hole. Furthermore, in the devices described in Patent Documents 3 and 4, the water flow for cleaning the nozzle is insufficient, and there is a risk that cleaning foam (detergent), disinfectant, etc. sprayed onto the nozzle may remain attached to the nozzle. be.

Therefore, the main objective of the present disclosure is to provide a private part cleaning device that can hygienically clean a cleaning nozzle that sprays cleansing water to the private parts of a human body.

The private parts cleaning device of the present disclosure includes a cleaning nozzle that is moved forward and backward between a cleaning position and a retracted position and spouts cleansing water to the private parts of a human body at the cleaning position, and in which a cleaning liquid is supplied from the outside. a cylinder having at least one cleaning liquid inlet that covers at least a part of the cleaning nozzle over the entire circumference, the at least one cleaning liquid inlet causing the cleaning liquid to flow into a gap between the cylinder and the cleaning nozzle. The cleaning nozzle is also formed on the cylinder so as to be rotated along the outer peripheral surface of the cleaning nozzle.

In the private part cleaning device of the present disclosure, at least a portion of the cleaning nozzle is covered by a cylinder having at least one cleaning liquid inlet to which cleaning liquid is supplied from the outside. Further, the at least one cleaning liquid inlet is formed in the cylinder so that the cleaning liquid flows into the gap between the cylinder and the cleaning nozzle and swirls along the outer peripheral surface of the cleaning nozzle. As a result, while the cleaning nozzle is being moved from the cleaning position to the retracted position, or while the cleaning nozzle is being moved to the retracted position, by supplying the cleaning liquid to at least one cleaning liquid inlet, the outer periphery of the cleaning nozzle can be The cleaning liquid swirling along the surface can strip off dirt adhering to the cleaning nozzle and allow it to flow out together with the cleaning liquid from the gap between the cylinder and the cleaning nozzle. Furthermore, by swirling the cleaning liquid along the outer circumferential surface of the cleaning nozzle, it is possible to ensure sufficient flow strength of the cleaning liquid, and the cleaning liquid is spread over the entire circumference of the cleaning nozzle to effectively remove dirt. Can be removed. As a result, with the private part cleaning device of the present disclosure, it is possible to hygienically clean the cleaning nozzle that spouts cleansing water to the private parts of the human body.

Further, the at least one cleaning liquid inlet may be formed in the cylinder so as to cause the cleaning liquid to flow into the gap along a tangential direction of an inner circumferential surface of the cylinder. This makes it possible to better ensure the strength of the flow of the cleaning liquid swirling along the outer peripheral surface of the cleaning nozzle.

Furthermore, the cylinder may include a plurality of dirt removal protrusions that protrude radially inward at intervals in the circumferential direction from the inner circumferential surface of the tip so as to come into sliding contact with the outer circumferential surface of the cleaning nozzle. good. In such a private part cleaning device, when the cleaning nozzle is moved from the cleaning position to the retreat position, the dirt attached to the outer circumferential surface of the cleaning nozzle is physically stripped off by the plurality of dirt removal protrusions, and adjacent dirt removal protrusions are separated from each other. The cleaning liquid can be discharged to the outside through the gap between the cleaning liquid and the cleaning liquid. Thereby, it becomes possible to further improve the removal performance of dirt adhering to the cleaning nozzle in the private part cleaning device.

Further, a plurality of the cleaning liquid inlets may be formed in the cylinder at intervals in the axial direction, and among the plurality of cleaning liquid inlets, at least one of the cleaning liquid inlets is formed on the distal end side of the cylinder. may be formed to swirl the cleaning liquid along the outer peripheral surface of the cleaning nozzle.

Furthermore, the cylinder may include a small inner diameter portion on the proximal side and a large inner diameter portion on the distal side having an inner diameter larger than the small inner diameter portion, and the cleaning liquid inlet port may include a small inner diameter portion on the distal side having a larger inner diameter than the small inner diameter portion. and the large inner diameter portion. As a result, the cleaning liquid is swirled along the outer circumferential surface of the cleaning nozzle within the large inner diameter part of the cylinder to effectively remove dirt adhering to the cleaning nozzle, and the cleaning liquid supplied to the small inner diameter part washes away dirt. becomes possible.

Further, a dirt removal member may be movably disposed in a gap between the inner circumferential surface of the large inner diameter portion and the cleaning nozzle. Thereby, the dirt removal member can be rotated together with the cleaning liquid within the large inner diameter portion of the cylinder, and dirt adhering to the cleaning nozzle can be effectively removed.

Furthermore, an ultrasonic vibrator may be attached to the cylinder. By supplying the cleaning liquid to the cleaning liquid inlet and distributing the cleaning liquid around the entire circumference of the cleaning nozzle, the ultrasonic vibrator is activated to more effectively remove dirt attached to the cleaning nozzle. It becomes possible to do so.

Further, the cleaning liquid may be at least one of water (including warm water), bubble-containing water, detergent-containing water, and sterilizing water. In this case, the same type of cleaning liquid may be supplied to the plurality of cleaning liquid inlets, or different types of cleaning liquid may be supplied to the plurality of cleaning liquid inlets. Further, different types of cleaning liquids may be supplied to the same or different cleaning liquid inlets at different times.

Furthermore, the private part cleaning device may include an air supply unit that supplies air to the inside of the cylinder. As a result, after cleaning the cleaning nozzle with the cleaning liquid, by supplying air from the air supply unit to the inside of the cylinder, the inside of the cylinder and the cleaning nozzle can be quickly dried and the growth of mold can be effectively suppressed. It becomes possible.

Further, the cylinder may be fixed on a base plate of a casing that rotatably supports the toilet seat so that the distal end side is located lower than the proximal end side, and the outer circumferential surface of the distal end of the cylinder and the base plate may be fixed. A sealing member may be disposed between the outer peripheral surface of the base end of the cleaning nozzle and the inner peripheral surface of the cylinder. As a result, it is possible to satisfactorily suppress the adhesion of dirt from the outside to the outer circumferential surface of the cylinder, and to suppress leakage of the cleaning liquid from the inside of the cylinder into the casing.

FIG. 1 is a perspective view showing a toilet bowl to which a private parts cleaning device of the present disclosure is attached. It is a perspective view showing a cleaning nozzle and a cylinder included in the private part cleaning device of the present disclosure. FIG. 1 is a schematic configuration diagram showing main parts of a private part cleaning device of the present disclosure. FIG. 3 is a longitudinal cross-sectional view showing a cleaning nozzle and a cylinder included in the private part cleaning device of the present disclosure. 4 is a sectional view taken along line VV in FIG. 3. FIG. It is a front view showing a cleaning nozzle and a cylinder included in the private part cleaning device of the present disclosure. It is a cross-sectional view showing a cleaning nozzle and a cylinder included in the private part cleaning device of the present disclosure. It is a flowchart illustrating the cleaning procedure of the cleaning nozzle in the private part cleaning device of the present disclosure. It is a longitudinal cross-sectional view showing another cylinder applicable to the private part cleaning device of the present disclosure. 10 is a flowchart illustrating a procedure for cleaning the cleaning nozzle in the private part cleaning device including the cylinder of FIG. 9. FIG.

Next, embodiments for carrying out the invention of the present disclosure will be described with reference to the drawings.

FIG. 1 is a perspective view showing a toilet bowl 1 to which a private parts cleaning device 10 of the present disclosure is attached. The toilet bowl 1 shown in the figure is a Western-style seated toilet bowl, and the private part cleaning device 10 is fixed to the top surface of the toilet bowl 1. As shown in the figure, the private parts cleaning device 10 includes a casing (main body) 11, a toilet seat 12 rotatably supported by the casing 11, and a toilet seat 12 rotatably supported by the casing 11 like the toilet seat 12. It includes a lid 13 and an operation panel 14.

The casing 11 of the private part cleaning device 10 includes a resin base plate (base member) 110 fixed to the top surface of the toilet bowl 1, and a resin cover 111 detachably attached to the base plate 110. Inside the casing 11 (base plate 110 and cover 111), a butt washing nozzle 15 and a bidet nozzle (not shown) are arranged as human body washing nozzles that eject washing water, which is water or warm water, to private parts of the human body.

As shown in FIGS. 2 and 3, the butt cleaning nozzle 15 is supported by a substantially cylindrical cylinder 20 fixed to the base plate 110 so as to be movable (slidable) forward and backward in the axial direction. The butt washing nozzle 15 has inside thereof a water supply passage 15L extending in the axial direction, and an ejection hole 15H (see FIG. 4) that communicates with the water supply passage 15L and is open on the outer peripheral surface. The cylinder 20 is capable of accommodating almost the entire butt washing nozzle 15 except for a part on the distal end side, and the distal end side (the left end side in FIG. 3) is closer to the base end side (the right end side in FIG. 3). is also fixed to the base plate 110 so as to be positioned below.

Furthermore, the butt washing nozzle 15 is moved by an actuator 17 including a motor M, a gear mechanism G, a belt B, etc. so that the butt washing nozzle 15 is located at either the retracted position in the casing 11 or the washing position on the toilet bowl side of the toilet bowl 1. It is moved forward and backward relative to the cylinder 20 (base plate 110). That is, by rotating the motor M in one direction and pushing out the belt B via the gear mechanism G, the buttock cleaning nozzle 15 can be advanced to the cleaning position. On the other hand, by rotating the motor M in the other direction (reverse direction) and winding up the belt B via the gear mechanism G, the butt cleaning nozzle 15 can be retreated to the retracted position. A bidet nozzle (not shown) is also supported by a cylinder having the same configuration as the cylinder 20 so as to be able to move forward and backward in the axial direction, and is moved to a retracted position in the casing 11 by an actuator similar to the actuator 17 and for cleaning the toilet bowl side of the toilet bowl 1. It is moved back and forth in the axial direction between the two positions.

Furthermore, the casing 11 of the private part cleaning device 10 is provided with a movable shutter 18, as shown in FIG. The shutter 18 is pressed open by the butt cleaning nozzle 15 or the like that is moved to the cleaning position by the actuator 17 or the like. When the butt-washing nozzle 15 and the like move to the retracted position, the shutter 18 is biased by a spring (not shown) and closed, covering the tips of the butt-washing nozzle 15 and the bidet nozzle. This makes it possible to suppress stains on the butt washing nozzle 15 and the bidet nozzle, as well as their surrounding areas, and to maintain the aesthetic appearance by hiding both.

Furthermore, inside the casing 11, there is a valve unit connected to the water supply pipe (water source) via a branch faucet and a water supply hose, a water tank connected to the valve unit, a butt washing nozzle 15, a bidet nozzle, and a water tank. A rotary valve (water pressure adjustment switching valve), etc. (all not shown) connected to the valve is accommodated. The valve unit includes a strainer, a check valve, a constant flow valve, a water stop solenoid valve, a relief valve, and the like. The water tank includes a heater and a temperature sensor that heat water from water pipes (water source), and can store hot water heated by the heater. The rotary valve selectively switches the supply destination of washing water from the water tank between the bottom washing nozzle 15 and the bidet nozzle, and also adjusts the amount of washing water supplied to the bottom washing nozzle 15 and the like.

In addition, inside the casing 11, a warm air supply unit 19 (air supply unit) including a heater, a blower, etc., and a control device 30 that controls the whole private part cleaning device 10 are housed (see FIG. 3 for both). ). The control device 30 is a microcomputer including a CPU, ROM, RAM, etc. (not shown). The control device 30 controls the valve unit, the water tank heater, the butt washing nozzle 15, the bidet nozzle actuator 17, etc., the rotary valve, the warm air, etc. based on signals from the operation panel 14, the seating sensor, the water tank temperature sensor, etc. Controls the supply unit 19 etc. Note that the private part cleaning device 10 may be provided with a heat exchanger having a heater that heats water from a water source instead of the water tank.

FIG. 4 is a sectional view showing the butt cleaning nozzle 15 and cylinder 20, and FIG. 5 is a sectional view taken along the line VV in FIG. 3. As shown in these drawings, the cylinder 20 includes a first cylinder 21 (small inner diameter part) and a second cylinder 22 (large inner diameter part) that is separate from the first cylinder 21. The first cylinder 21 is made of, for example, resin and has a relatively long cylindrical shape, and has a constant inner diameter larger than the outer diameter of the butt cleaning nozzle 15 . Further, an enlarged diameter portion 210 having a larger outer diameter than the proximal end (right end in the figure) is formed at the distal end (left end in the figure) of the first cylinder 21 .

Furthermore, a cylindrical cleaning liquid inlet 215 that opens at the inner circumferential surface of the first cylinder 21 is formed in the proximal end portion of the first cylinder 21 . As can be seen from FIGS. 6 and 7, the cleaning liquid inlet 215 has an axial center that is orthogonal to the first plane P1 that includes the axial center of the first cylinder 21 (cylinder 20), and ), and is integrated with the first cylinder 21 so as to be offset to one side (right side in the figure) along the first plane P1 from a second plane P2 that is orthogonal to the first plane P1. It is formed. However, the cleaning liquid inlet 215 formed separately from the first cylinder 21 may be fixed to the first cylinder 21.

The second cylinder 22 is formed of, for example, resin into a short cylindrical shape, and has an inner diameter larger than the inner diameter of the first cylinder 21, more specifically, an outer diameter that is approximately the same as the outer diameter of the enlarged diameter portion 210 of the first cylinder 21. It has an inner diameter. Further, a reduced diameter portion 220 having approximately the same inner diameter as the first cylinder 21 is formed at the tip of the second cylinder 22 (left end in the figure). The reduced diameter portion 220 has a plurality of dirt removal protrusions 221 that protrude radially inward from the inner circumferential surface at intervals in the circumferential direction so as to come into sliding contact with the outer circumferential surface of the butt cleaning nozzle 15 . Each dirt removal protrusion 221 extends in a direction inclined with respect to the axis of the second cylinder 22 (cylinder 20), as shown by the broken line in FIG.

As shown in FIGS. 4 and 5, the enlarged diameter part 210 of the first cylinder 21 is coaxially fitted or press-fitted into the end of the second cylinder 22 opposite to the reduced diameter part 220. It is fixed to the cylinder 22. Further, an annular groove is formed on the outer circumferential surface of the enlarged diameter portion 210, and a sealing member 23 such as an O-ring disposed between the groove and the inner circumferential surface of the second cylinder 22 is used to seal the first and second cylinders. The gap between the second cylinders 21 and 22 is sealed. Further, a sealing member 24 such as an O-ring is disposed between the outer peripheral surface of the reduced diameter portion 220 (the tip of the cylinder 20) of the second cylinder 22 and the base plate 110.

When the butt cleaning nozzle 15 is in the retracted position, the nozzle 15 is housed inside the cylinder 20 including the first and second cylinders 21 and 22 with its tip slightly protruding from the reduced diameter part 220. In addition, the butt cleaning nozzle 15 is slidably supported by the inner peripheral part of the enlarged diameter part 210 of the first cylinder 21 and a plurality of dirt removal protrusions 221 formed in the reduced diameter part 220 of the second cylinder 22. be done. In addition, an annular groove is formed at the base end of the butt cleaning nozzle 15, and a sealing member 25 such as an The gap between the cleaning nozzle 15 and the first cylinder 21 is sealed.

As shown in FIGS. 4 and 5, an annular gap (internal space) X communicating with the cleaning liquid inlet 215 is defined between the outer peripheral surface of the butt cleaning nozzle 15 and the inner peripheral surface of the first cylinder 21. be done. Furthermore, there is a relatively large gap between the enlarged diameter part 210 of the first cylinder 21 and the reduced diameter part 220 of the second cylinder 22 in the axial direction due to the outer circumferential surface of the butt washing nozzle 15 and the inner circumferential surface of the second cylinder 22. A gap (internal space) Y having a short axial length is defined. In this embodiment, when the butt cleaning nozzle 15 is in the retracted position, the ejection hole 15H of the butt cleaning nozzle 15 is located within the gap Y. Further, the gap Y communicates with the gap X on the first cylinder 21 side via a groove formed in the inner peripheral part of the enlarged diameter part 210, and the gap between the adjacent dirt removal protrusions 221 of the reduced diameter part 220. communicates with the outside via.

A cylindrical cleaning liquid inlet 225 that opens at the gap Y is formed in the second cylinder 22 at a distance from the cleaning liquid inlet 215 in the axial direction of the cylinder 20 . As shown in FIG. 7, the cleaning liquid inlet 225 has an axial center that is orthogonal to the second plane P2 that includes the axial center of the second cylinder 22 (cylinder 20), and is also orthogonal to the second plane P2. It is formed integrally with the second cylinder 22 so as to be offset to one side (lower side in the figure) along the second plane P2 from the first plane P1. Further, in this embodiment, the cleaning liquid inlet 225 extends in the tangential direction of the inner circumferential surface of the second cylinder 22, as shown in FIG. However, a cleaning liquid inlet 225 formed separately from the second cylinder 22 may be fixed to the second cylinder 22. Further, inside the gap Y, a sphere 26 as a dirt removing member is movably arranged. As shown in FIG. 7, the sphere 26 has an outer diameter corresponding to the difference between the radius of curvature of the inner circumferential surface of the second cylinder 22 and the radius of curvature of the outer circumferential surface of the butt cleaning nozzle 15. Further, a plurality of protrusions 222 are formed on the inner circumferential surface of the second cylinder 22 at intervals in the circumferential direction so as to be able to press the sphere 26 within the gap Y. Note that the dirt removal member is not limited to the spherical body 26, but may be an ellipsoid or a cylinder. Furthermore, a plurality of not-illustrated protrusions may be formed on the surface of the dirt removal member.

As shown in FIG. 3, water is selectively supplied to the cleaning liquid inlet 215 of the first cylinder 21 from the water pipe (water source) via a valve 27 and a hose (not shown), which are controlled to open and close by the control device 30. can be supplied. In addition, as shown in FIG. 3, cleaning agent-containing water stored in a tank (not shown) is selectively supplied to the cleaning liquid inlet 215 through a valve 28 and a hose (not shown), which are controlled to open and close by the control device 30. can be supplied to Furthermore, as shown in FIG. 3, water is supplied to the cleaning liquid inlet 225 of the second cylinder 22 from a water supply pipe (water source) via a valve 29 and a hose (not shown) whose opening and closing are controlled by the control device 30. can be supplied. In addition, hot air from the hot air supply unit 19 can be selectively supplied to the inside of the first cylinder 21, that is, the gap X. However, the cleaning liquid inlets 215 and 225 may be connected via the valve 27 or 29 to a supply source of hot water heated by a heater or the like.

Next, a procedure for cleaning the buttocks cleaning nozzle 15 and the like in the private part cleaning device 10 configured as described above will be explained. Here, a procedure for cleaning the buttocks cleaning nozzle 15 in response to the user operating a nozzle cleaning switch (not shown) provided on the operation panel 14 will be described. In addition, in the private part cleaning device 10, since a cylinder having the same configuration as the cylinder 20 is provided for the bidet nozzle, the bidet nozzle can also be cleaned according to the procedure described below.

FIG. 8 is a flowchart illustrating a nozzle cleaning routine executed by the control device 30 in response to the nozzle cleaning switch on the operation panel 14 being operated by the user. As shown in the figure, when the nozzle cleaning switch is operated, the control device 30 once advances the butt cleaning nozzle 15 to the cleaning position (step S100). Next, the control device 30 opens the valve 29 so that water is supplied to the cleaning liquid inlet 225 on the tip side of the cylinder 20 (second cylinder 22), and moves the butt cleaning nozzle 15 from the cleaning position to the retracted position. The actuator 17 is controlled to move backward (step S110).

Water supplied to the cleaning liquid inlet 225 in response to the opening of the valve 29 flows into the gap Y between the second cylinder 22 and the butt cleaning nozzle 15. As described above, the cleaning liquid inlet 225 is perpendicular to the second plane P2 and offset from the first plane P1 to one side (lower side in FIG. 7) along the second plane P2. There is. Therefore, the water flowing into the gap Y from the cleaning liquid inlet 225 swirls along the outer circumferential surface of the butt cleaning nozzle 15. In addition, the water supplied to the gap Y flows down while swirling along the outer circumferential surface of the butt cleaning nozzle 15, and flows down the gap between the reduced diameter portion 220 and the butt cleaning nozzle 15, that is, between the adjacent dirt removal protrusions 221. It flows out to the toilet bowl part (outside) of the toilet bowl 1 through the gap. As a result, while the butt-washing nozzle 15 is moved from the washing position to the retracted position, the dirt adhering to the butt-washing nozzle 15 is stripped off by the water serving as the washing liquid swirling inside the second cylinder 22, that is, within the gap Y. Water can flow out to the toilet bowl portion (outside) of the toilet bowl 1 through the gaps between adjacent filth removal protrusions 221.

In this way, by swirling the water along the outer circumferential surface of the butt washing nozzle 15 within the gap Y, it is possible to ensure sufficient strength of the water flow, and the water can be flowed around the entire circumference of the butt washing nozzle 15. Dirt can be effectively removed by distributing it evenly. Further, in the private part cleaning device 10, the cleaning liquid inlet 225 allows water as a cleaning liquid to flow into the gap Y along the tangential direction of the inner circumferential surface of the second cylinder 22. This makes it possible to better ensure the strength of the flow of water swirling along the outer peripheral surface of the butt cleaning nozzle 15.

Furthermore, a plurality of protrusions 222 are formed on the inner circumferential surface of the second cylinder 22 at intervals in the circumferential direction, and in the gap Y between the inner circumferential surface of the second cylinder 22 and the butt cleaning nozzle 15, A sphere 26 serving as a dirt removal member is movably arranged. As a result, the sphere 26 is appropriately pressed against the outer circumferential surface of the butt washing nozzle 15 by the plurality of protrusions 222 within the gap Y, and is rotated (moved) by the water flow (see FIG. 7), making the dirt attached to the butt washing nozzle 15 more effective. It is possible to peel it off. However, the plurality of protrusions 222 may be omitted from the inner peripheral surface of the second cylinder 22. That is, even if the sphere 26 is rotated together with the cleaning liquid within the gap Y without being pressed against the outer peripheral surface of the butt cleaning nozzle 15, dirt adhering to the butt cleaning nozzle 15 can be removed satisfactorily.

The second cylinder 22 also includes a plurality of cylinders that protrude radially inward at intervals in the circumferential direction from the inner circumferential surface of the reduced diameter portion 220 (the tip of the cylinder 20) so as to come into sliding contact with the outer circumferential surface of the butt cleaning nozzle 15. It includes a dirt removal protrusion 221. Therefore, in the private part cleaning device 10, when moving the butt cleaning nozzle 15 from the cleaning position to the retreat position, the dirt attached to the outer circumferential surface of the butt cleaning nozzle 15 is physically stripped off by the plurality of dirt removal protrusions 221. Water can flow out into the toilet bowl part of the toilet bowl 1 through the gap between adjacent filth removal protrusions 221. Thereby, it becomes possible to further improve the removal performance of dirt adhering to the butt cleaning nozzle 15 in the private part cleaning device 10.

When the butt cleaning nozzle 15 reaches the retracted position, the control device 30 stops the actuator 17. Further, the control device 30 closes the valve 29 to stop the supply of water to the cleaning liquid inlet 225 of the second cylinder 22, and also closes the valve 29 to stop the supply of water to the cleaning liquid inlet 215 on the base end side of the cylinder 20 (first cylinder 21). The valve 28 is opened for a predetermined time so that cleaning agent-containing water is supplied to the cleaning agent (step S120).

The cleaning agent-containing water supplied to the cleaning liquid inlet 215 flows into the gap X between the first cylinder 21 and the butt cleaning nozzle 15. As described above, the cleaning liquid inlet 215 is perpendicular to the first plane P1, and is offset from the second plane P2 to one side (to the right in FIG. 7) along the first plane P1. . Therefore, the cleaning agent-containing water that has flowed into the gap X from the cleaning liquid inlet 215 also swirls along the outer peripheral surface of the butt cleaning nozzle 15 and the inner peripheral surface of the first cylinder 21 . Further, the cleaning agent-containing water that has flowed into the gap The water flows down from the gap Y to the toilet bowl part (outside) of the toilet bowl 1 through the gap between the adjacent filth removal protrusions 221. Thereby, the detergent-containing water can be spread over the entire butt washing nozzle 15 and the entire inner circumferential surfaces of the first and second cylinders 21 and 22, so that dirt can be removed even better. Furthermore, by supplying cleaning agent-containing water to the cleaning liquid inlet 215, dirt on the sphere 26 that was not removed by the physical force acting when rotating in the gap Y, dirt on the back side of the shutter 18, and dirt on the nozzle 15 can be removed. Dirt on the front surface can be effectively removed by the detergent-containing water and/or the cleaning foam formed by the detergent-containing water.

After opening the valve 28 for a predetermined period of time, the control device 30 closes the valve 28 and controls water to be supplied to the cleaning liquid inlet 215 on the base end side of the cylinder 20 (first cylinder 21). Then, the valve 27 is opened for a predetermined time (step S130). The water supplied to the cleaning liquid inlet 215 flows into the gap The waste flows out into the toilet bowl portion (outside) of the toilet bowl 1 through the gaps between the filth removal protrusions 221. This makes it possible to spread water throughout the butt cleaning nozzle 15 and wash away dirt and detergent-containing water (foam) remaining in the gaps X and Y.

After opening the valve 27 for a predetermined period of time, the control device 30 closes the valve 27 and also controls the hot air supply unit 19 for a predetermined period of time so that hot air is supplied to the inside of the first cylinder 21. It is activated (step S140). In this way, after cleaning the bottom cleaning nozzle 15 with water or detergent-containing water, hot air (air) is supplied from the hot air supply unit 19 to the inside of the cylinder 20, thereby cleaning the inside of the cylinder 20 and the bottom. The nozzle 15 can be quickly dried and mold growth can be effectively suppressed. After operating the hot air supply unit 19 for a predetermined period of time, the control device 30 stops the hot air supply unit 19, thereby completing cleaning of the butt cleaning nozzle 15. As a result, in the private part cleaning device 10, it becomes possible to hygienically clean the buttocks cleaning nozzle 15 (and bidet nozzle) that sprays cleansing water to the private parts of the human body.

Further, in the private part cleaning device 10, the cylinder 20 is fixed on the base plate 110 of the casing 11 that rotatably supports the toilet seat 12 so that the distal end side is located lower than the proximal end side, and the second cylinder 22 is compressed. A sealing member 24 is disposed between the outer peripheral surface of the diameter portion 220 and the base plate 110. Furthermore, a sealing member 25 is arranged between the outer peripheral surface of the base end of the butt cleaning nozzle 15 and the inner peripheral surface of the first cylinder 21 (cylinder 20). As a result, it is possible to effectively suppress the adhesion of dirt from the outside to the outer circumferential surface of the cylinder 20, and to suppress leakage of water or detergent-containing water from the inside of the cylinder 20 into the casing 11. Become.

In addition, in the cylinder 20 described above, the cleaning liquid inlet 215 may be formed in the first cylinder 21 so as to extend in the tangential direction of the inner circumferential surface of the first cylinder 21. However, the extending direction of the cleaning liquid inlet 225 (215) is not necessarily the same as the direction in which the cleaning liquid inlet 225 (215) extends, as long as water, etc. can flow into the gap Y (X) so as to swirl along the outer circumferential surface of the butt cleaning nozzle 15, etc. It is not necessary to completely coincide with the tangential direction of the inner circumferential surface of the second cylinder 22 and the like. Further, the cylinder 20 may be a single cylindrical body, the cylinder 20 may have only one cleaning liquid inlet, or the cylinder 20 may have three or more cleaning liquid inlets spaced apart in the axial direction. It may also be formed by Furthermore, in the private part cleaning device 10, the sphere 26 disposed in the gap Y may be omitted. Furthermore, if the base end of the butt cleaning nozzle 15 is located closer to the distal end than the base end of the first cylinder 21 (cylinder 20) in the retracted position, the seal member 25 may be omitted. Furthermore, the cylinder 20 may be configured to accommodate both the butt cleaning nozzle 15 and the bidet nozzle. Furthermore, in step S120 in FIG. 8, bubble-containing water or sterilizing water may be supplied to the cleaning liquid inlet 215 as the cleaning liquid. Furthermore, if cleaning agent-containing water, bubble-containing water, or sterilized water can be selectively supplied to the cleaning liquid inlet 225, the cleaning agent-containing water, etc. is supplied to the cleaning liquid inlet 225 in step S110 in FIG. May be supplied. Furthermore, in the routine of FIG. 8, at least one of step S120 and step S140 may be omitted. Furthermore, a part or all of the processing in the routine of FIG. 8 may be executed when the butt cleaning nozzle 15 and the like are returned to the retracted position after cleaning the private parts.

FIG. 9 is a sectional view showing another cylinder 20B applicable to the private part cleaning device 10 described above. The cylinder 20B shown in the same figure is a single cylindrical body having a constant inner diameter larger than the outer diameter of the butt washing nozzle 15 etc., and the cylinder 20B is a single cylindrical body having a constant inner diameter larger than the outer diameter of the butt washing nozzle 15 etc. It can be stored inside. As shown in the figure, at the lower part of the cylinder 20B, there is an opening 20o that opens approximately half of the tip end side (left end side in FIG. 9) in the axial direction, and the cylinder 20B has The ultrasonic transducer 50 includes a metal plate 200 as a vibrating member fixed to the metal plate 200 and an ultrasonic transducer 50 fixed to the outer surface of the metal plate 200. The ultrasonic transducer 50 is turned on and off by the control device 30.

Further, in the cylinder 20B, a cleaning liquid inlet 215 and a cleaning liquid inlet 225, which are respectively opened on the inner circumferential surface of the cylinder 20B, are formed at intervals in the axial direction. The cleaning liquid inlet 215 is formed in a cylindrical shape, and is connected to the cylinder 20B, for example, so that the cleaning liquid such as water is swirled along the outer circumferential surface of the butt cleaning nozzle 15 on the base end side of the cylinder 20B rather than the cleaning liquid inlet 225. extends in the tangential direction of the inner circumferential surface of the Water (or warm water) from a water source can be selectively supplied to the cleaning liquid inlet 215 via a valve and a hose (both not shown) whose opening and closing are controlled by the control device 30. Further, the cleaning liquid inlet 225 is formed in a cylindrical shape, and rotates the cleaning liquid such as water along the outer peripheral surface of the butt cleaning nozzle 15 near the proximal end of the opening 20o (metal plate 200). For example, it extends in the tangential direction of the inner peripheral surface of the cylinder 20B. Water (or warm water) from a water source can also be selectively supplied to the cleaning liquid inlet 225 via a valve and a hose (both not shown) whose opening and closing are controlled by the control device 30. In addition, hot air from the hot air supply unit 19 can be selectively supplied to the inside of the cylinder 20B. Furthermore, at the tip of the cylinder 20B, a plurality of dirt removal protrusions (not shown) are formed that protrude radially inward from the inner circumferential surface at intervals in the circumferential direction so as to come into sliding contact with the outer circumferential surface of the butt cleaning nozzle 15. may be done.

FIG. 10 is a flowchart illustrating a nozzle cleaning routine executed by the control device 30 in response to the user operating the nozzle cleaning switch on the operation panel 14 in the private part cleaning device 10 including the cylinder 20B. As shown in the figure, when the nozzle cleaning switch is operated, the control device 30 either retreats the butt cleaning nozzle 15 to the retracted position or holds it at the retracted position (step S200). Next, the control device 30 opens a valve (not shown) so that water is supplied to the cleaning liquid inlet 225 on the front end side of the cylinder 20B (step S210). The water supplied to the cleaning liquid inlet 225 flows into the gap between the cylinder 20B and the butt cleaning nozzle 15, and while swirling along the outer circumferential surface of the butt cleaning nozzle 15, the water flows through the gap at the tip (lower end) of the cylinder 20B. flowing down towards. Thereby, water can be sufficiently distributed around the metal plate 200.

Subsequently, the control device 30 operates the ultrasonic transducer 50 for a predetermined period of time (step S220). As a result, the metal plate 200 vibrates the water while spreading the water around the entire circumference of the butt washing nozzle 15 around the metal plate 200, thereby more effectively removing the dirt attached to the butt washing nozzle 15. becomes possible. During this time, the stripped filth flows out from the gap between the tip of the cylinder 20B and the butt washing nozzle 15 into the toilet bowl portion (outside) of the toilet bowl 1 along with water. Further, after operating the ultrasonic vibrator 50 for a predetermined period of time, the control device 30 closes the valve to stop the supply of water to the cleaning liquid inlet 225, and also controls the cleaning liquid at the base end side of the cylinder 20B. A valve (not shown) is opened so that water is supplied to the inlet 215 (step S230). The water supplied to the cleaning liquid inlet 215 flows into the gap between the cylinder 20B and the butt cleaning nozzle 15, and while swirling along the outer circumferential surface of the butt cleaning nozzle 15, the water flows through the gap at the tip (lower end) of the cylinder 20B. flowing down towards. Thereby, water can be spread throughout the butt cleaning nozzle 15, and dirt remaining in the gap can be washed away.

After opening the valve for a predetermined time so that water is supplied to the cleaning liquid inlet 215 on the base end side of the cylinder 20B, the control device 30 closes the valve and heats the inside of the cylinder 20B. The hot air supply unit 19 is operated for a predetermined time so that air is supplied (step S240). Thereby, the inside of the cylinder 20B and the butt washing nozzle 15 can be quickly dried, and the growth of mold and the like can be effectively suppressed. After operating the hot air supply unit 19 for a predetermined period of time, the control device 30 stops the hot air supply unit 19, thereby completing cleaning of the butt cleaning nozzle 15. As a result, even in the private part cleaning device 10 including the cylinder 20B, it becomes possible to hygienically clean the buttocks cleaning nozzle 15 (and bidet nozzle) that jets cleansing water to the private parts of the human body.

Note that the invention of the present disclosure is not limited to the above-described embodiments, and it goes without saying that various changes can be made within the scope of the present disclosure. Further, the above-described embodiment is merely one specific form of the invention described in the Summary of the Invention column, and does not limit the elements of the invention described in the Summary of the Invention column.

INDUSTRIAL APPLICATION The invention of this disclosure can be utilized in the manufacturing industry of private parts cleaning devices, etc.

1 Toilet bowl, 10 Private area cleaning device, 11 Casing, 110 Base plate, 111 Cover, 12 Toilet seat, 13 Toilet lid, 14 Operation panel, 15 Butt cleaning nozzle, 15H Spout hole, 15L Water supply path, 17 Actuator, 18 Shutter, 19 Temperature Wind supply unit, 20, 20B cylinder, 20o opening, 200 metal plate, 21 first cylinder, 210 enlarged diameter part, 215 cleaning liquid inlet, 22 second cylinder, 220 reduced diameter part, 221 dirt removal protrusion, 222 protrusion , 225 cleaning liquid inlet, 23, 24, 25 sealing member, 26 sphere, 27, 28, 29 valve, 30 control device, 50 ultrasonic vibrator, B belt, G gear mechanism, M motor, X, Y gap.

Claims (9)

A private parts cleaning device including a cleaning nozzle that is moved forward and backward between a cleaning position and a retracted position and that sprays cleaning water onto the private parts of a human body at the cleaning position,
A cylinder having a plurality of cleaning liquid inlets through which cleaning liquid is supplied from the outside and covering at least a part of the cleaning nozzle all around the cylinder;
The plurality of cleaning liquid inlets are formed at intervals in the cylinder in the axial direction so that the cleaning liquid flows into a gap between the cylinder and the cleaning nozzle and swirls along the outer peripheral surface of the cleaning nozzle ,
Among the plurality of cleaning liquid inlets, at least the cleaning liquid inlet formed on the tip side of the cylinder is formed to swirl the cleaning liquid along the outer peripheral surface of the cleaning nozzle. A private parts cleaning device including a cleaning nozzle that is moved forward and backward between a cleaning position and a retracted position and that sprays cleaning water onto the private parts of a human body at the cleaning position,
A cylinder having at least one cleaning liquid inlet to which cleaning liquid is supplied from the outside and covering at least a part of the cleaning nozzle all around the cylinder;
The at least one cleaning liquid inlet is formed in the cylinder so as to allow the cleaning liquid to flow into a gap between the cylinder and the cleaning nozzle and to swirl along the outer peripheral surface of the cleaning nozzle ,
The cylinder includes a small inner diameter portion on the proximal side and a large inner diameter portion on the distal side having an inner diameter larger than the small inner diameter portion,
The cleaning liquid inlet is formed in each of the small inner diameter portion and the large inner diameter portion . The local cleaning device according to claim 2 ,
A private part cleaning device, wherein a dirt removal member is movably arranged in a gap between the inner circumferential surface of the large inner diameter portion and the cleaning nozzle. A private parts cleaning device including a cleaning nozzle that is moved forward and backward between a cleaning position and a retracted position and that sprays cleaning water onto the private parts of a human body at the cleaning position,
a cylinder having at least one cleaning liquid inlet to which cleaning liquid is supplied from the outside and covering at least a part of the cleaning nozzle all around;
The at least one cleaning liquid inlet is formed in the cylinder so as to allow the cleaning liquid to flow into the gap between the cylinder and the cleaning nozzle and to swirl along the outer peripheral surface of the cleaning nozzle ,
The cylinder is fixed on a base plate of a casing that rotatably supports the toilet seat so that the distal end side is located lower than the proximal end side ,
A sealing member is disposed between the outer peripheral surface of the tip of the cylinder and the base plate,
A sealing member is disposed between the outer peripheral surface of the base end of the cleaning nozzle and the inner peripheral surface of the cylinder.
Local cleaning equipment installed . The local cleaning device according to any one of claims 1 to 4 ,
The cleaning liquid inlet is formed in the cylinder so as to allow the cleaning liquid to flow into the gap along the tangential direction of the inner peripheral surface of the cylinder. The private part cleaning device according to any one of claims 1 to 5 ,
The cylinder includes a plurality of dirt removal protrusions that protrude radially inward from the inner peripheral surface of the tip portion at intervals in the circumferential direction so as to come into sliding contact with the outer peripheral surface of the cleaning nozzle. The private part cleaning device according to any one of claims 1 to 6, wherein an ultrasonic vibrator is attached to the cylinder. The private part cleaning device according to any one of claims 1 to 7,
The cleaning liquid is at least one of water, bubble-containing water, detergent-containing water, and sterilizing water. The private part cleaning device according to any one of claims 1 to 8, further comprising an air supply unit that supplies air to the inside of the cylinder.

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