Sanitary Cleaning Equipment

Abstract

To provide a sanitary washing device capable of ejecting water in a short time.SOLUTION: A sanitary washing device comprises: a nozzle that has a plurality of ejection ports; and a channel switching mechanism that has a fixed disk having a plurality of supply holes and a movable disk having openings and overlapping the fixed disk. The ejection ports have a plurality of private part washing ejection ports and first and second ejection ports. The supply holes have a plurality of private part washing supply holes in communication with the plurality of private part washing ejection ports, and first and second supply holes in communication with the first and second ejection ports. The channel switching mechanism can switch between a state of supplying water to the first ejection port and a state of supplying water to the second ejection port by rotating the movable disk, and has an operation of supplying water to the first and second ejection ports before and / or after use by a user. The first supply hole and the second supply hole among the plurality of supply holes are adjacent in a circumferential direction of the fixed disk.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE Aspects of the present invention generally relate to sanitary washing devices. [Background technology]

[0002] In a conventional sanitary washing device, it is known that water is sprayed into the bowl of the toilet before or after the user uses the toilet. This makes it possible to prevent dirt from sticking to the bowl and to remove dirt that has adhered to the bowl. For example, in Patent Document 1, a nozzle is provided with two spray outlets, and water is sprayed from the spray outlet by advancing the nozzle into the bowl, or water is sprayed from the spray outlet with the nozzle retracted. This allows water to reach a wide area of ​​the bowl. On the other hand, if the nozzle is capable of spraying water over a wide area, it may take a long time to spray the water. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6741219 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made based on the recognition of such problems, and has an object to provide a sanitary washing device capable of spraying water in a short period of time. [Means for solving the problem]

[0005] A first invention relates to a method for cleaning a human body part, the method comprising: a casing; a nozzle for cleaning a human body part, the nozzle being movable between a stored position stored in the casing and an advanced position advanced from the casing, the nozzle having a plurality of water outlets for discharging water; and a flow path switching mechanism for switching a flow path of water supplied to the nozzle, the flow path switching mechanism including a fixed disk having a plurality of supply holes and a movable disk having an opening and overlapping with the fixed disk, the plurality of outlets including a plurality of local cleaning outlets for spraying water upward, a first outlet for spraying water forward and downward, and a second outlet for spraying water further rearward than the first outlet, the plurality of supply holes including a plurality of local cleaning supply holes communicating with the plurality of local cleaning outlets, and a second outlet communicating with the first outlet. The sanitary washing device has a first supply hole communicating with the opening and a second supply hole communicating with the second nozzle, and the flow path switching mechanism is capable of switching between a state in which the opening is connected to the first supply hole and water is supplied to the first nozzle, a state in which the opening is connected to the second supply hole and water is supplied to the second nozzle, and a state in which the opening is connected to at least one of a plurality of local cleaning supply holes and water is supplied to at least one of a plurality of local cleaning nozzles by rotating the movable disk relative to the fixed disk, and has an operation of supplying water to the first nozzle and the second nozzle before and / or after use by a user, and of the plurality of supply holes, the first supply hole and the second supply hole are adjacent in the circumferential direction of the fixed disk.

[0006] According to this sanitary washing device, water is sprayed from the first and second outlets provided in the nozzle before and / or after use by a user, so that water can be sprayed over a wide area. Furthermore, since the first supply hole and the second supply hole are adjacent to each other in the fixed disk, it is possible to quickly switch between a state in which water is sprayed from the first outlet and a state in which water is sprayed from the second outlet. Therefore, it is possible to spray water over a wide area in a short time. By stopping the water spraying in a short time before and / or after use of the toilet, it is possible to prevent water from the outlet from splashing on the next user, for example.

[0007] A second invention is the sanitary washing device according to the first invention, characterized in that the second supply hole has a groove flow passage extending in the circumferential direction of the fixed disk.

[0008] According to this sanitary washing device, by adjusting the length of the groove flow path, the ratio of the time water is sprayed from the first nozzle to the time water is sprayed from the second nozzle can be adjusted without stopping the circumferential rotation of the movable disc.

[0009] A third invention is a sanitary washing device according to the first or second invention, characterized in that the flow path switching mechanism has a stopper that determines the origin position of the circumferential rotation of the movable disk by regulating the circumferential rotation of the movable disk, and when the movable disk is in the origin position, the opening and the first supply hole are connected, or the opening and the second supply hole are connected, and the first supply hole and the second supply hole are adjacent to each other without the stopper between them.

[0010] With this sanitary washing device, the origin position can be reliably determined by the stopper, and by circumferentially arranging the first supply hole and the second supply hole adjacent to each other without using the stopper, water can be sprayed more easily over a wider area in a shorter period of time.

[0011] A fourth invention is a sanitary cleaning device according to the third invention, characterized in that the multiple supply holes further have a bypass supply hole separate from the multiple local cleaning nozzles, and when the movable disk is rotated from the origin position in a direction opposite to the rotation direction regulated by the stopper, the opening communicates with the bypass supply hole after the first supply hole or the second supply hole among the multiple supply holes.

[0012] According to this sanitary washing device, the opening of the movable disk communicates with the first and second supply holes and then with the bypass supply hole, so that when switching between a state in which the first and second nozzles spray water and a state in which the bypass nozzle sprays water, the opening does not communicate with the local cleaning supply hole and the local cleaning nozzle does not spray water. Therefore, even if the state in which the first and second nozzles spray water and the state in which the bypass nozzle sprays water are switched with the nozzle extended without being retracted, no water leakage occurs from the local cleaning nozzle. This eliminates the need to retract the nozzle every time the state in which the first and second nozzles spray water and the state in which the bypass nozzle sprays water are switched, so that an increase in the number of times the nozzle is driven can be suppressed. Effect of the Invention

[0013] According to an aspect of the present invention, a sanitary washing device capable of spraying water in a short period of time is provided. [Brief description of the drawings]

[0014] [Figure 1] 1 is a perspective view illustrating a toilet apparatus equipped with a sanitary washing device according to an embodiment. [Diagram 2] 1 is a block diagram showing a schematic configuration of a main part of a sanitary washing device according to an embodiment; [Diagram 3] 3(a) and 3(b) are perspective views illustrating an example of a nozzle of a sanitary washing device according to an embodiment. [Figure 4] 4(a) and 4(b) are cross-sectional views illustrating the periphery of a nozzle of a sanitary washing device according to an embodiment. [Diagram 5] 3 is a schematic diagram illustrating a flow path switching unit of the sanitary washing device according to the embodiment. FIG. [Figure 6] 6(a) to 6(c) are plan views and perspective views illustrating a fixed disk of a flow path switching unit of a sanitary washing device according to an embodiment. [Figure 7] 7(a) to 7(c) are plan views and perspective views illustrating the movable disk of the flow path switching unit of the sanitary washing device according to the embodiment. [Figure 8]13 is a plan view illustrating a stopper mechanism of a flow path switching unit of a sanitary washing device according to an embodiment. FIG. [Figure 9] 9(a) to 9(f) are plan views illustrating the operation of the flow path switching unit of the sanitary washing device according to the embodiment. [Figure 10] 10(a) to 10(f) are plan views illustrating the operation of the flow path switching unit of the sanitary washing device according to the embodiment. [Figure 11] 11(a) to 11(d) are plan views illustrating the operation of the flow path switching unit of the sanitary washing device according to the embodiment. [Figure 12] 4 is a flowchart illustrating the operation of the sanitary washing device according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate. FIG. 1 is a perspective view illustrating a toilet apparatus equipped with a sanitary washing device according to an embodiment. As shown in Fig. 1, the toilet device 900 includes a seated toilet bowl (toilet bowl) 800 and a sanitary washing device 100 installed above it. The sanitary washing device 100 includes a casing 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are each pivotally supported on the casing 400 so as to be able to open and close freely. The toilet bowl 800 includes a bowl 801.

[0016] In the following description of the embodiment, the terms "upper," "lower," "front," "rear," "right side," and "left side" are used; these directions are as seen by a user sitting on the toilet seat 200, as shown in FIG. 1.

[0017] The inside of the casing 400 contains a private parts washing function unit for washing private parts such as the buttocks of a user sitting on the toilet seat 200. The private parts washing function unit includes a nozzle 473. The nozzle 473 can advance and retreat between a stored position in which it is stored in the casing 400 and an advanced position in which it advances from the casing 400. The nozzle 473 advances in a linear trajectory toward the center of a bowl 801 located at the front and lower part of the casing 400, and retreats in a linear trajectory toward the inside of the casing 400 located at the rear and upper part of the bowl 801. Note that the sanitary washing device 100 shown in FIG. 1 shows a state in which the nozzle 473 is in the advanced position.

[0018] The sanitary washing device 100 is provided with a seating detection sensor 404 (see FIG. 2) that detects a user sitting on the toilet seat 200. When the seating detection sensor 404 detects a user sitting on the toilet seat 200, the nozzle 473 can be advanced to the advanced position or retracted to the stored position when the user operates an operation unit 500 (see FIG. 2), such as a remote control.

[0019] The nozzle 473 has a plurality of outlets (water outlets) for ejecting water. The plurality of outlets include a plurality of local body washing outlets 474 for ejecting water upward. When the nozzle 473 is advanced from the casing 400, the nozzle 473 ejects water (cleaning water) from the local body washing outlets 474 toward the local body parts to clean the local body parts. Specifically, a buttocks cleaning outlet 474a, a soft cleaning outlet 474b, and a bidet cleaning outlet 474c are provided as the plurality of local body washing outlets 474 (water outlets). The nozzle 473 can eject water from the buttocks cleaning outlet 474a or the soft cleaning outlet 474b provided at the tip of the nozzle 473 to clean the "buttocks" of the user sitting on the toilet seat 200. Alternatively, the nozzle 473 can spray water from a bidet cleansing water outlet 474c provided at the tip of the nozzle 473 to clean the female private parts of a woman sitting on the toilet seat 200. In this specification, the term "water" includes not only cold water but also heated hot water.

[0020] The "buttocks" cleaning mode includes, for example, a "buttocks cleaning" and a "soft cleaning" that cleans the buttocks more gently with a softer water flow than the "buttocks cleaning". The nozzle 473 can execute, for example, the "buttocks cleaning", the "soft cleaning", and the "bidet cleaning".

[0021] 1, the bidet cleansing water outlet 474c is provided closer to the tip of the nozzle 473 than the soft cleansing water outlet 474b, and the soft cleansing water outlet 474b is provided closer to the tip of the nozzle 473 than the rear cleansing water outlet 474a, but the installation positions of the rear cleansing water outlet 474a, the soft cleansing water outlet 474b, and the bidet cleansing water outlet 474c are not limited to this. Also, in the nozzle 473 shown in FIG. 1, three water outlets are provided, but for example, the soft cleansing water outlet 474b may be omitted, or four or more water outlets may be provided.

[0022] FIG. 2 is a block diagram showing a schematic configuration of a main part of the sanitary washing device according to the embodiment. Figure 2 shows the main components of the waterway system and electrical system. 2, the sanitary washing device 100 has a water conveying section 20. The water conveying section 20 has a pipe 20a that leads from a water supply source 10, such as a water main or a water tank, to a nozzle 473. The water conveying section 20 conveys water supplied from the water supply source 10 to the nozzle 473 through the pipe 20a. The pipe 20a is formed by, for example, each part, such as a solenoid valve 431, a heat exchanger unit 440, and a flow path switching section 472, which will be described below, and a plurality of pipes that connect these each part.

[0023] A solenoid valve 431 is provided upstream of the water conveying section 20. The solenoid valve 431 is an openable and closable solenoid valve, and controls the supply of water based on a command from a control section 405 provided inside the casing 400. In other words, the solenoid valve 431 opens and closes the pipe 20a. By opening the solenoid valve 431, water supplied from the water supply source 10 flows into the pipe 20a.

[0024] A pressure regulating valve 432 is provided downstream of the solenoid valve 431. When the water supply pressure is high, the pressure regulating valve 432 adjusts the pressure in the pipe 20a to a predetermined pressure range. A check valve 433 is provided downstream of the pressure regulating valve 432. The check valve 433 prevents water from flowing back upstream of the check valve 433 when, for example, the pressure in the pipe 20a drops.

[0025] A heat exchanger unit 440 (heating section) is provided downstream of the check valve 433. The heat exchanger unit 440 has a heater and heats the water supplied from the water supply source 10 to, for example, a specified temperature. That is, the heat exchanger unit 440 generates hot water.

[0026] The heat exchanger unit 440 is an instantaneous heating type (instantaneous type) heat exchanger using, for example, a ceramic heater. The instantaneous heating type heat exchanger can heat water to a specified temperature in a short time compared to a hot water storage heating type heat exchanger using a hot water storage tank. The heat exchanger unit 440 is not limited to an instantaneous heating type heat exchanger, and may be a hot water storage heating type heat exchanger. The heating section is not limited to a heat exchanger, and may be one using another heating method, such as one using microwave heating.

[0027] The heat exchanger unit 440 is connected to the control unit 405. The control unit 405 controls the heat exchanger unit 440 in response to an operation of the operation unit 500 by a user, for example, to raise the temperature of the water to a temperature set by the operation unit 500.

[0028] A flow rate sensor 442 is provided downstream of the heat exchanger unit 440. The flow rate sensor 442 detects the flow rate of water discharged from the heat exchanger unit 440. That is, the flow rate sensor 442 detects the flow rate of water flowing through the pipe 20a. The flow rate sensor 442 is connected to the control unit 405. The flow rate sensor 442 inputs the detection result of the flow rate to the control unit 405.

[0029] A vacuum breaker (VB) 452 is provided downstream of the flow sensor 442. The vacuum breaker 452 has, for example, a flow path for flowing water, an air intake port for taking air into the flow path, and a valve mechanism for opening and closing the air intake port. For example, the valve mechanism closes the air intake port when water is flowing in the flow path, and opens the air intake port when the water flow stops to take air into the flow path. That is, the vacuum breaker 452 takes air into the pipe 20a when there is no water flow in the water guide section 20. For example, a float valve is used as the valve mechanism.

[0030] Vacuum breaker 452 takes in air into pipe 20a as described above, thereby, for example, facilitating drainage of the portion of pipe 20a downstream of vacuum breaker 452. Vacuum breaker 452 promotes drainage of nozzle 473, for example. In this manner, vacuum breaker 452 drains water from nozzle 473 and takes in air into nozzle 473, thereby preventing, for example, cleaning water from nozzle 473 or wastewater accumulated in bowl 801 from flowing back toward water supply source 10 (clean water).

[0031] An electrolytic cell unit 450 is provided downstream of the vacuum breaker 452. The electrolytic cell unit 450 generates a liquid containing hypochlorous acid (functional water) from the tap water by electrolyzing the tap water flowing therein. The electrolytic cell unit 450 is connected to the control unit 405. The electrolytic cell unit 450 generates functional water based on the control by the control unit 405.

[0032] The functional water generated in the electrolytic cell unit 450 may be a solution containing metal ions such as silver ions or copper ions. Alternatively, the functional water generated in the electrolytic cell unit 450 may be a solution containing electrolytic chlorine or ozone. Alternatively, the functional water generated in the electrolytic cell unit 450 may be acidic water or alkaline water.

[0033] A flow rate adjustment unit 471 is provided downstream of the electrolytic cell unit 450. The flow rate adjustment unit 471 adjusts the water pressure (flow rate). A flow path switching unit 472 is provided downstream of the flow rate adjustment unit 471. The flow path switching unit 472 switches the flow path of the water supplied to the nozzle 473 and the nozzle cleaning unit 478 and opens and closes the water supply. The flow rate adjustment unit 471 and the flow path switching unit 472 may be provided as one unit. The flow rate adjustment unit 471 and the flow path switching unit 472 are connected to the control unit 405. The operations of the flow rate adjustment unit 471 and the flow path switching unit 472 are controlled by the control unit 405.

[0034] A nozzle 473 and a nozzle cleaning unit 478 are provided downstream of the flow path switching unit 472. The nozzle 473 receives a driving force from a nozzle driving unit 476 and advances into and retreats from within the bowl 801 of the toilet 800.

[0035] The nozzle cleaning unit 478 cleans the outer peripheral surface (body) of the nozzle 473, for example, by spraying functional water or water from a bypass nozzle 478a (see FIG. 3) described below.

[0036] In addition, downstream of the flow path switching unit 472, there are provided a posterior cleansing flow path 21, a soft cleansing flow path 22, and a bidet cleansing flow path 23, which supply water supplied from the water supply source 10 via the water guide unit 20 and functional water generated in the electrolytic cell unit 450 to the nozzle 473. The posterior cleansing flow path 21 connects the flow path switching unit 472 and the posterior cleansing water outlet 474a. The soft cleansing flow path 22 connects the flow path switching unit 472 and the soft cleansing water outlet 474b. The bidet cleansing flow path 23 connects the flow path switching unit 472 and the bidet cleansing water outlet 474c.

[0037] Further, downstream of the flow path switching unit 472, there are provided a surface cleaning flow path 24, a first bowl jet flow path 25, and a second bowl jet flow path 26. The surface cleaning flow path 24 guides the water supplied from the water supply source 10 via the water guide unit 20 and the functional water generated in the electrolytic cell unit 450 to the water discharge unit of the nozzle cleaning unit 478. The surface cleaning flow path 24 connects the flow path switching unit 472 and the bypass jet 478a. The first bowl jet flow path 25 is connected to a first jet 479a (see FIG. 3) provided in the nozzle, which will be described later. The second bowl jet flow path 26 is connected to a second jet 479b (see FIG. 3) provided in the nozzle, which will be described later. The first bowl jet flow path 25 and the second bowl jet flow path 26 guide the water supplied from the water supply source 10 via the water guide unit 20 and the functional water generated in the electrolytic cell unit 450 to the first jet 479a and the second jet 479b. The water or functional water supplied to the first and second nozzles 479a, 479b is sprayed toward the bowl 801 from the first and second nozzles 479a, 479b.

[0038] The control unit 405 controls the flow path switching unit 472 to switch between opening and closing of each of the flow paths, i.e., the posterior cleansing flow path 21, the soft cleansing flow path 22, the bidet cleansing flow path 23, the surface cleansing flow path 24, the first bowl jetting flow path 25, and the second bowl jetting flow path 26. In this way, the flow path switching unit 472 switches between a state in which each of a plurality of water outlets, such as the posterior cleansing water outlet 474a, the soft cleansing water outlet 474b, the bidet cleansing water outlet 474c, the bypass outlet 478a, the first outlet 479a, and the second outlet 479b, is connected to the pipe 20a and a state in which it is not connected to the pipe 20a.

[0039] The control unit 405 is supplied with power from the power supply circuit 401, and controls the operations of the solenoid valve 431, the heat exchanger unit 440, the electrolytic cell unit 450, the flow rate adjustment unit 471, the flow path switching unit 472, the nozzle driving unit 476, etc., based on signals from the seating detection sensor 404, the flow rate sensor 442, the operation unit 500, etc. In this way, the control unit 405 controls the operation of the nozzle 473. The control unit 405 is an electric circuit including an integrated circuit such as a microcomputer.

[0040] In addition, the casing 400 may be appropriately provided with various mechanisms such as a "warm air drying function" that blows warm air toward the "buttocks" of a user sitting on the toilet seat 200 to dry them, a "deodorizing unit" and an "indoor heating unit". In this case, an exhaust port 407 from the deodorizing unit and an exhaust port 408 from the indoor heating unit are appropriately provided on the side of the casing 400. However, in the present invention, it is not necessarily necessary to provide a sanitary washing function unit or other additional function units.

[0041] 3(a) and 3(b) are perspective views illustrating an example of a nozzle of a sanitary washing device according to an embodiment. Fig. 3(b) shows an enlarged view of the region R shown in Fig. 3(a). A nozzle head 473a at the tip of the nozzle 473 is provided with a plurality of local cleansing nozzles 474 (a rear cleansing water outlet 474a, a soft cleansing water outlet 474b, and a bidet cleansing water outlet 474c), a first nozzle 479a, and a second nozzle 479b.

[0042] As shown in FIG. 3(a), a nozzle cleaning section 478 (nozzle cleaning chamber) is provided on the outer periphery of the nozzle 473. The nozzle cleaning section 478 has a bypass jet 478a that supplies water to the outer periphery surface of the nozzle 473. For example, the position of the nozzle cleaning section 478 is fixed with respect to the casing 400. When the nozzle 473 advances and retreats with respect to the casing 400, the nozzle 473 moves back and forth with respect to the nozzle cleaning section 478. For example, water is jetted from the bypass jet 478a while the nozzle 473 advances and retreats. The outer periphery surface of the nozzle 473 can be cleaned with this water. For example, the bypass jet 478a jets water into the nozzle cleaning section 478 (nozzle cleaning chamber), and does not jet water toward the user or the bowl 801 in front.

[0043] The first and second jetting ports 479a and 479b are arranged side by side on the left and right. The first and second jetting ports 479a and 479b jet water toward the bowl 801.

[0044] 4(a) and 4(b) are cross-sectional views illustrating the periphery of a nozzle of a sanitary washing device according to an embodiment. These figures show the periphery of nozzle 473 in the cross section taken along line A1-A2 shown in Figure 1. Figure 4(a) shows a state in which water is being ejected from first ejection port 479a, and Figure 4(b) shows a state in which water is being ejected from second ejection port 479b.

[0045] The nozzle 473 has, for example, a nozzle head 473a and a nozzle cover 473b. The nozzle head 473a is stored inside the nozzle cover 473b. In addition, a shielding plate 600 is provided at the front part of the casing 400. The shielding plate 600 is rotatable around an axis 600a. When the nozzle 473 is in the most retracted storage position, it is located behind the shielding plate 600 and does not contact the shielding plate 600. When the nozzle 473 advances forward from the storage position along the advance direction ED, the tip of the nozzle 473 comes into contact with the shielding plate 600 and rotates the shielding plate 600 so as to push up. When the nozzle 473 is in the advanced position advanced from the casing 400, it is located below the shielding plate 600. Note that a drive unit for automatically rotating the shielding plate 600 may be provided separately.

[0046] The first and second nozzles 479a and 479b spray mist water, for example. For example, the first nozzle 479a sprays in a substantially conical shape with the position of the first nozzle 479a as the apex. For example, the second nozzle 479b sprays in a substantially conical shape with the position of the second nozzle 479b as the apex. The particle size of the water sprayed from the first and second nozzles 479a and 479b is smaller than the particle size of the water sprayed from the buttocks cleansing water outlet 474a, the soft cleansing water outlet 474b, and the bidet cleansing water outlet 474c, for example. The particle size of the water sprayed from the first and second nozzles 479a and 479b is, for example, about 400 μm.

[0047] As shown in FIG. 4(a), the first jetting port 479a opens toward the front and downward. The first jetting port 479a jets water toward the front and downward. More specifically, the first jetting port 479a jets water at a first jetting angle θ1 with respect to the horizontal plane HP. The first jetting angle θ1 is an angle between a first jetting direction D1 of the water jetted from the first jetting port 479a and the horizontal plane HP. The first jetting direction D1 can be represented, for example, by the center line of the jetting range R1 of the water jetted from the first jetting port 479a. The first jetting direction D1 may be represented, for example, by a normal line of the first jetting port 479a.

[0048] The first jetting angle θ1 is, for example, larger than the advancing angle θ3 of the nozzle 473 with respect to the horizontal plane HP. The advancing angle θ3 is the angle between the advancing direction ED of the nozzle 473 and the horizontal plane HP. In other words, the first jetting port 479a jets water, for example, further rearward than the advancing direction ED of the nozzle 473. The first jetting angle θ1 is an acute angle. The first jetting angle θ1 is, for example, not less than 38 degrees and not more than 72 degrees.

[0049] As shown in FIG. 4(b), the second ejection port 479b opens further rearward than the first ejection port 479a. The second ejection port 479b ejects water further rearward than the first ejection port 479a. More specifically, the second ejection port 479b ejects water at a second ejection angle θ2 with respect to the horizontal plane HP. The second ejection angle θ2 is an angle between a second ejection direction D2 of the water ejected from the second ejection port 479b and the horizontal plane HP. The second ejection direction D2 can be represented, for example, by the center line of the ejection range R2 of the water ejected from the second ejection port 479b. The second ejection direction D2 may be represented, for example, by a normal line of the second ejection port 479b.

[0050] The second ejection angle θ2 is, for example, greater than the advancing angle θ3 of the nozzle 473 with respect to the horizontal plane HP. In other words, the second ejection port 479b ejects water, for example, further rearward than the advancing direction ED of the nozzle 473. The second ejection angle θ2 is greater than the first ejection angle θ1. In other words, the second ejection port 479b ejects water further rearward than the first ejection port 479a. The second ejection angle θ2 is, for example, greater than 72 degrees and less than 90 degrees.

[0051] In this way, by providing two outlets (first outlet 479a and second outlet 479b) that eject water in different directions in the front-to-rear direction, water can be applied to a wider range of bowl 801. More specifically, water can be applied to the front side of bowl 801 by first outlet 479a that ejects water in a forward and downward direction, and water can be applied to the rear side of bowl 801 by second outlet 479b that ejects water further rearward than first outlet 479a. This allows water ejected from second outlet 479b to be applied to the rear side of bowl 801, where water ejected from first outlet 479a is less likely to adhere, and water can be applied to a wider range of bowl 801.

[0052] FIG. 5 is a schematic diagram illustrating a flow path switching unit of a sanitary washing device according to an embodiment. As shown in FIG. 5, the flow path switching unit 472 (flow path switching mechanism) has a fixed disk (stator) 80, a movable disk (rotor) 82, a housing 84, and a drive mechanism 86.

[0053] The fixed disk 80 is, for example, disk-shaped and has a front surface 80a (facing the upstream side) and a back surface 80b (facing the downstream side) opposite to the front surface 80a. The fixed disk 80 is provided with a plurality of supply holes (such as a first supply hole 91, a second supply hole 92, a bypass supply hole 93, and a plurality of local cleansing supply holes, which will be described later with reference to FIG. 6). Each of the plurality of supply holes is connected to each of a plurality of flow paths (a bottom cleansing flow path 21, a soft cleansing flow path 22, a bidet cleansing flow path 23, a surface cleansing flow path 24, a first bowl jetting flow path 25, and a second bowl jetting flow path 26) provided downstream.

[0054] The movable disk 82 is, for example, a disk shape having a diameter approximately the same as that of the fixed disk 80. The movable disk 82 is provided on the upstream side of the fixed disk 80. The movable disk 82 has a front surface 82a (surface facing the upstream side) and a back surface 82b (surface facing the downstream side) opposite the front surface 82a. The movable disk 82 overlaps with the fixed disk 80. In other words, the back surface 82b of the movable disk 82 faces the front surface 80a of the fixed disk 80. The movable disk 82 abuts against the front surface 80a of the fixed disk 80. The movable disk 82 has openings 98 (first openings 98a and second openings 98b described later with reference to FIG. 7) corresponding to the multiple supply holes of the fixed disk 80.

[0055] The movable disk 82 slides and rotates circumferentially on the front surface 80a about an axis (hereinafter referred to as the rotation axis RA) that is perpendicular to the front surface 80a. When an opening 98 of the movable disk 82 overlaps with one of the supply holes provided in the fixed disk 80, the other supply hole in the fixed disk 80 is blocked by the movable disk 82. This allows water to pass only through the supply hole that overlaps with the opening 98 of the movable disk 82.

[0056] The flow path switching unit 472 selectively switches the supply holes of the fixed disk 80 through which water can pass by rotating the movable disk 82 so that the opening 98 overlaps with at least one of the multiple supply holes. This allows water to be selectively supplied to at least one of the bottom cleansing flow path 21, the soft cleansing flow path 22, the bidet cleansing flow path 23, the frontal cleansing flow path 24, the first bowl jetting flow path 25, and the second bowl jetting flow path 26 according to the selected supply hole.

[0057] The housing 84 is, for example, cylindrical, and accommodates the fixed disk 80 and the movable disk 82 in its internal space. The housing 84 rotatably supports the movable disk 82. Water is supplied from the upstream side of the flow path switching unit 472 to the internal space of the housing 84 upstream of the movable disk 82. The water is supplied to each flow path from the internal space of the housing 84 via the movable disk 82 and the fixed disk 80.

[0058] The drive mechanism 86 has an electric motor such as a motor or a solenoid, and rotates the movable disk 82 by supplying a drive force to the movable disk 82. The drive mechanism 86 is connected to the control unit 405, and rotates the movable disk 82 under the control of the control unit 405. The control unit 405 drives the drive mechanism 86 to rotate the movable disk 82, and switches the destination of the water by selecting at least one of the supply holes of the fixed disk 80. The drive mechanism 86 may be any mechanism that can rotate the movable disk 82 without causing water leakage.

[0059] The flow path switching unit 472 further has a stopper mechanism 87. The stopper mechanism 87 has a stopper 88, which will be described later with reference to Fig. 8. The stopper 88 regulates the rotation of the movable disc 82 in the circumferential direction, thereby defining the origin of the rotation of the movable disc 82 in the circumferential direction.

[0060] 6(a) to 6(c) are plan views and perspective views illustrating a fixed disk of a flow path switching unit of a sanitary washing device according to an embodiment. 6(a) is a plan view showing the front surface 80a side, FIG. 6(b) is a plan view showing the rear surface 80b side, and FIG. 6(c) is a perspective view of the fixed disk 80. As shown in FIG. The fixed disk 80 has a first supply hole 91, a second supply hole 92, a plurality of supply holes for local cleansing (a bidet supply hole 94, a buttocks supply hole 95, and a soft supply hole 96), and a bypass supply hole 93.

[0061] The first supply hole 91 and the second supply hole 92 are provided adjacent to each other in the circumferential direction of the fixed disk 80 among a plurality of supply holes provided in the fixed disk 80. In other words, in the circumferential direction of the fixed disk 80, no other supply holes (the bypass supply hole 93 and the supply hole for local cleaning) are arranged between the first supply hole 91 and the second supply hole 92.

[0062] In this example, the multiple supply holes are arranged in the circumferential direction of the fixed disk in the order of the first supply hole 91, the second supply hole 92, the bidet supply hole 94, the buttocks supply hole 95, the bypass supply hole 93, and the soft supply hole 96. The multiple supply holes are arranged, for example, in a circle. Each supply hole includes a through hole that extends from the front surface 80a to the rear surface 80b and penetrates the fixed disk 80.

[0063] First supply hole 91 is connected to first bowl ejection passage 25 and communicates with first ejection port 479a via first bowl ejection passage 25. Second supply hole 92 is connected to second bowl ejection passage 26 and communicates with second ejection port 479b via second bowl ejection passage 26. Bypass supply hole 93 is connected to surface cleaning passage 24 and communicates with bypass ejection port 478a via surface cleaning passage 24.

[0064] Each of the multiple local cleansing supply holes is connected to each of the multiple local cleansing nozzles. More specifically, the bidet supply hole 94 is connected to the bidet cleansing flow path 23 and communicates with the bidet cleansing water outlet 474c via the bidet cleansing flow path 23. The buttocks supply hole 95 is connected to the buttocks cleansing flow path 21 and communicates with the buttocks cleansing water outlet 474a via the buttocks cleansing flow path 21. The soft supply hole 96 is connected to the soft cleansing flow path 22 and communicates with the soft cleansing water outlet 474b via the soft cleansing flow path 22.

[0065] The term "supply hole" may include not only the through hole but also the groove flow passage connected to the through hole. For example, the second supply hole 92 has a through hole 92a and a groove passage 92b. The groove passage 92b is a groove provided in the front surface 80a, extends in the circumferential direction of the fixed disk 80, and is connected to the through hole 92a. The bidet supply hole 94 has a through hole 94a and a groove passage 94b. The groove passage 94b is a groove provided in the front surface 80a, extends in the circumferential direction of the fixed disk 80, and is connected to the through hole 94a. The rear end supply hole 95 has a through hole 95a and a groove passage 95b. The groove passage 95b is a groove provided in the front surface 80a, extends in the circumferential direction of the fixed disk 80, and is connected to the through hole 95a. The soft supply hole 96 has a through hole 96a and a groove passage 96b. The groove passage 96b is a groove provided in the front surface 80a, extends in the circumferential direction of the fixed disk 80, and is connected to the through hole 96a. The first supply hole 91 has a through hole 91a, and the bypass supply hole 93 has a through hole 93a. In this example, the first supply hole 91 and the bypass supply hole 93 are not provided with a groove flow passage, but the first supply hole 91 and the bypass supply hole 93 may each be provided with a groove flow passage as appropriate.

[0066] 7(a) to 7(c) are plan views and perspective views illustrating the movable disk of the flow path switching unit of the sanitary washing device according to the embodiment. 7(a) is a plan view showing the front surface 82a, FIG. 7(b) is a plan view showing the rear surface 82b, and FIG. 7(c) is a perspective view of the movable disc 82. As shown in FIG.

[0067] As shown in FIG. 7(a) to FIG. 7(c), the movable disc 82 has an opening 98. The opening 98 may have a plurality of openings. In this example, the opening 98 includes a first opening 98a and a second opening 98b. Each of the first opening 98a and the second opening 98b extends from the front surface 82a to the back surface 82b and penetrates the movable disc 82. Note that the range of the opening here includes a cutout portion obtained by cutting out a part of a circle. For example, the first opening 98a is a cutout portion obtained by cutting out the outer periphery of the circular movable disc 82.

[0068] The second opening 98b is provided on the opposite side to the first opening 98a when viewed from the rotation center 82c of the movable disk 82. The first opening 98a is located closer to the outer periphery of the movable disk 82 than the second opening 98b. The opening area of ​​the first opening 98a is larger than the opening area of ​​the second opening 98b.

[0069] FIG. 8 is a plan view illustrating a stopper mechanism of the flow path switching unit of the sanitary washing device according to the embodiment. 8, the stopper mechanism 87 has a first member 87a and a second member 87b. In this example, the planar shapes of the first member 87a and the second member 87b are generally circular, and the second member 87b is disposed on the inner periphery side of the first member 87a.

[0070] The stopper 88 regulates the rotation of the movable disk 82 in the circumferential direction. In this example, the stopper 88 is composed of a first stopper portion 88a and a second stopper portion 88b. The first stopper portion 88a is provided on the first member 87a and is a protrusion that protrudes toward the center of the second member 87b. The second stopper portion 88b is provided on the second member 87b and is a protrusion that protrudes from the center side of the second member 87b toward the outside (the first member 87a side).

[0071] The first member 87a is fixed, for example, to the housing 84 of the flow path switching unit 472. That is, the position of the first stopper portion 88a is fixed. On the other hand, the second member 87b is attached to the rotation axis of the movable disk 82. That is, the second member 87b is rotatable relative to the first member 87a about the rotation axis RA together with the rotation of the movable disk 82. The movable disk 82 and the second stopper portion 88b rotate integrally in the positive direction D+ or the negative direction D- around the rotation axis RA.

[0072] As shown in Fig. 8, when the second stopper portion 88b rotates in the negative direction D-, it abuts against the first stopper portion 88a. This restricts the rotation of the second stopper portion 88b in the negative direction D-, i.e., the rotation of the movable disk 82 in the negative direction D-. In other words, the second stopper portion 88b and the movable disk 82 cannot rotate any further in the negative direction D-. The rotational position (rotational angle) of the movable disk 82 when the second stopper portion 88b abuts against the first stopper portion 88a and the rotation is restricted as shown in Fig. 8 becomes the origin position of the circumferential rotation of the movable disk 82.

[0073] In this example, the clockwise rotation direction is the negative direction D- and the counterclockwise rotation direction is the positive direction D+, but the clockwise direction may be the positive direction D+ and the counterclockwise direction may be the negative direction D-. In addition, the stopper 88 is not limited to the above example, and may have any configuration that can regulate the rotation of the movable disc 82 and define the origin position of the rotation of the movable disc 82.

[0074] 9(a) to 9(f), 10(a) to 10(f) and 11(a) to 11(d) are plan views illustrating the operation of the flow path switching section of the sanitary washing device according to the embodiment. 9(a) to 9(c), 10(a) to 10(c), 11(a) and 11(b) are plan views showing fixed disk 80 and movable disk 82. FIG. Figures 9(d) to 9(f), 10(d) to 10(f), 11(c) and 11(d) are plan views showing the stopper mechanism 87 in the states shown in Figures 9(a) to 9(c), 10(a) to 10(c), 11(a) and 11(b), respectively.

[0075] 9(a) and 9(d) show a state in which the movable disc 82 and the second stopper portion 88b are in the original position. 9(a) shows a state in which the opening 98 (first opening 98a) of the movable disk 82 and the first supply hole 91 of the fixed disk 80 overlap. In other words, the opening 98 (first opening 98a) and the first supply hole 91 communicate with each other, and water is supplied to the first outlet 479a. As a result, the first outlet 479a sprays water toward the bowl 801.

[0076] 9(b) and 9(e) show a state in which the movable disc 82 and the second stopper portion 88b are rotated in the plus direction D+ from the state shown in FIG. 9(a) and FIG. 9(d). 9(b) shows a state in which the opening 98 (first opening 98a) of the movable disk 82 and the second supply hole 92 (groove flow passage 92b) of the fixed disk 80 overlap. In other words, the opening 98 (first opening 98a) and the second supply hole 92 communicate with each other, and water is supplied to the second outlet 479b. As a result, the second outlet 479b sprays water toward the bowl 801.

[0077] 9(c) and 9(f) show a state in which the movable disc 82 and the second stopper portion 88b are further rotated in the plus direction D+ from the state shown in FIG. 9(b) and FIG. 9(e). 9(c) shows a state in which the opening 98 (first opening 98a) of the movable disk 82 and the second supply hole 92 (through hole 92a) of the fixed disk 80 overlap. In other words, the opening 98 (first opening 98a) and the second supply hole 92 communicate with each other, and water is supplied to the second outlet 479b. As a result, the second outlet 479b sprays water toward the bowl 801.

[0078] 10(a) and 10(d) show a state in which the movable disc 82 and the second stopper portion 88b are further rotated in the plus direction D+ from the state shown in FIG. 9(c) and FIG. 9(f). 10(a) shows a state in which the opening 98 (second opening 98b) of the movable disk 82 and the bypass supply hole 93 of the fixed disk 80 overlap. That is, the opening 98 (second opening 98b) and the bypass supply hole 93 communicate with each other, and water is supplied to the bypass jet port 478a. As a result, the bypass jet port 478a supplies water to the outer peripheral surface of the nozzle 473.

[0079] 10(b) and 10(e) show a state in which the movable disc 82 and the second stopper portion 88b are further rotated in the plus direction D+ from the state shown in FIG. 10(a) and FIG. 10(d). 10(b) shows a state in which the opening 98 (first opening 98a) of the movable disk 82 and the bidet supply hole 94 of the fixed disk 80 overlap. That is, the opening 98 (first opening 98a) and the bidet supply hole 94 communicate with each other, and water is supplied to the bidet flush water outlet 474c. This causes the bidet flush water outlet 474c to spray water upward.

[0080] 10(c) and 10(f) show a state in which the movable disc 82 and the second stopper portion 88b are further rotated in the plus direction D+ from the state shown in FIG. 10(b) and FIG. 10(e). In the state of FIG. 10(c), the opening 98 (first opening 98a) and the bidet supply hole 94 (groove flow path 94b) are overlapped, the opening 98 (first opening 98a) and the posterior supply hole 95 (groove flow path 95b) are overlapped, and the opening 98 (second opening 98b) and the soft supply hole 96 (groove flow path 96b) are overlapped. That is, the opening 98 (first opening 98a) and the bidet supply hole 94 are communicated, and water is supplied to the bidet cleansing water outlet 474c. Also, the opening 98 (first opening 98a) and the posterior supply hole 95 are communicated, and water is supplied to the posterior cleansing water outlet 474a. Also, the opening 98 (second opening 98b) and the soft supply hole 96 are communicated, and water is supplied to the soft cleansing water outlet 474b. As a result, water is sprayed from the bidet cleansing water outlet 474c, the rear cleansing water outlet 474a, and the soft cleansing water outlet 474b.

[0081] 11(a) and 11(c) show a state in which the movable disc 82 and the second stopper portion 88b are further rotated in the plus direction D+ from the state shown in FIG. 10(c) and FIG. 10(f). 11(a) shows a state in which the opening 98 (first opening 98a) and the posterior supply hole 95 overlap. That is, the opening 98 (first opening 98a) and the posterior supply hole 95 communicate with each other, and water is supplied to the posterior cleansing water outlet 474a. As a result, the posterior cleansing water outlet 474a sprays water upward.

[0082] 11(b) and 11(d) show a state in which the movable disc 82 and the second stopper portion 88b are further rotated in the plus direction D+ from the state shown in FIG. 11(a) and FIG. 11(c). 11(b) shows a state in which the opening 98 (first opening 98a) and the soft supply hole 96 overlap. That is, the opening 98 (first opening 98a) and the soft supply hole 96 communicate with each other, and water is supplied to the soft flushing water outlet 474b. As a result, the soft flushing water outlet 474b sprays water upward.

[0083] As described above, the flow path switching unit 472 can switch between the following first to fourth states by sliding and rotating the movable disk 82 in the circumferential direction relative to the fixed disk 80. The first state is a state in which the opening 98 and the first supply hole 91 are overlapped and communicated to supply water to the first ejection port 479a, as shown in FIG. 9(a), for example. The second state is a state in which the opening 98 and the second supply hole 92 are overlapped and communicated to supply water to the second ejection port 479b, as shown in FIG. 9(b) and FIG. 9(c), for example. 10(b), 10(c), 11(a) and 11(b), the opening 98 and at least one of the multiple local cleansing supply holes (bidet supply hole 94, buttocks supply hole 95, soft supply hole 96) are overlapped and communicated to supply water to at least one of the multiple local cleansing outlets (buttocks cleansing outlet 474a, soft cleansing outlet 474b, bidet cleansing outlet 474c). The fourth state is a state in which the opening 98 and the bypass supply hole 93 are overlapped and communicated to supply water to the bypass outlet 478a, as shown in FIG. 10(a).

[0084] The flow path switching unit 472 has an operation of supplying water to the first outlet 479a and the second outlet 479b before and / or after the user uses the toilet device (toilet bowl). Because water is sprayed from the first outlet 479a and the second outlet 479b provided in the nozzle before and / or after the user uses the toilet device (toilet bowl), water can be sprayed over a wide area.

[0085] More specifically, for example, when seating detection sensor 404 detects that a user has sat on toilet seat 200, control unit 405 controls flow path switching unit 472 to switch between the first state and the second state in sequence. That is, before the user uses the toilet, an operation of spraying water from first outlet 479a and an operation of spraying water from second outlet 479b are executed. This allows water to adhere to a wider area of ​​bowl 801, making it difficult for bowl 801 to become dirty.

[0086] Also, for example, when seating detection sensor 404 detects that the user has left toilet seat 200, control unit 405 controls flow path switching unit 472 to switch between the first state and the second state in sequence. That is, after the user uses the toilet, an operation of spraying water from first nozzle 479a and an operation of spraying water from second nozzle 479b are executed. This allows dirt to be removed from a wider area of ​​bowl 801.

[0087] Note that before and / or after use by the user, the state may be switched from the first state to the second state, or conversely, the state may be switched from the second state to the first state. Also, the trigger for starting water spouting before and / or after use by the user is not limited to the user sitting down or getting up from the seat. For example, before use by the user, the control unit 405 may start water spouting triggered by the user's entry into the toilet room or operation of the operation unit 500. After use by the user, the control unit 405 may start water spouting triggered by the user's exit from the toilet room or operation of the toilet flush button.

[0088] On the other hand, when the nozzle sprays water over a wide area of ​​the bowl, it may take time for the water to be sprayed. For example, when the nozzle is extended before or after a user uses the bowl, if the water spray is not completed within a short time, the next user may sit down while the nozzle is extended and spraying water, and the water from the nozzle may splash on the user.

[0089] In contrast to this, in the embodiment, among the multiple supply holes provided in the fixed disk 80, the first supply hole 91 and the second supply hole 92 are adjacent to each other in the circumferential direction of the fixed disk 80. This makes it possible to reduce the angle by which the movable disk 82 is rotated when switching between a state (first state) in which water is jetted from the first outlet 479a via the first supply hole 91 and a state (second state) in which water is jetted from the second outlet 479b via the second supply hole 92. This makes it possible to quickly switch between the first state and the second state. This makes it possible to jet water over a wide area in a short period of time.

[0090] As described with reference to FIGS. 9(a) and 9(d), when the movable disk 82 is in the origin position, the opening 98 (first opening 98a) communicates with the first supply hole 91. The first supply hole 91 and the second supply hole are adjacent to each other without the stopper 88 being interposed therebetween. That is, the first supply hole 91 and the second supply hole 92 are adjacent to each other in the rotation direction (positive direction D+) opposite to the rotation direction (negative direction D-) restricted by the stopper 88. As a result, the rotation of the movable disk 82 is not restricted by the stopper 88 when switching between a state in which the opening 98 (first opening 98a) overlaps with the first supply hole 91 and a state in which the opening 98 (first opening 98a) overlaps with the second supply hole 92. Thus, according to the embodiment, the origin position can be reliably determined by the stopper 88, and by circumferentially arranging the first supply hole 91 and the second supply hole 92 adjacent to each other without using the stopper 88, water can be more easily sprayed over a wider area in a shorter period of time.

[0091] When the movable disk 82 is at the origin position, the opening 98 (first opening 98a) may be configured to communicate with the second supply hole 92. For example, the arrangement of the first supply hole 91 and the second supply hole 92 in the circumferential direction may be interchanged.

[0092] 9(a) to 9(c), 10(a) to 10(c), 11(a) and 11(b), for example, the opening area of ​​the first opening 98a is larger than the opening area of ​​each of the through holes 91a to 96a of the fixed disk 80. The flow rate at each downstream can be adjusted by the opening area of ​​each of the through holes 91a to 96a. Also, the flow rate at each downstream can be adjusted by the depth and width (radial length) of each of the groove channels 92b, 94b to 96b. The circumferential length of each of the groove channels 92b, 94b to 96b is longer than the circumferential length of the first opening 98a.

[0093] By providing the groove flow passage (any of 92b, 94b to 96b), a state in which a part of the groove flow passage overlaps with the first opening 98a can be maintained during rotation of the movable disk 82. In other words, a state in which the first opening 98a and the groove flow passage communicate with each other can be maintained during rotation of the movable disk. This allows water to be ejected from the outlet communicating with the groove flow passage while rotating the movable disk 82. In this case, the length of time during which the first opening 98a and the groove flow passage overlap can be adjusted by adjusting the circumferential length of the groove flow passage. In other words, the length of time during which water is ejected from the outlet communicating with the first opening 98a via the groove flow passage can be adjusted.

[0094] For example, the second supply hole 92 has a groove flow path 92b. This allows the first opening 98a and the second supply hole 92 to communicate with each other while rotating the movable disk 82, and allows water to be ejected from the second outlet 479b. By adjusting the length of the groove flow path 92b, it is possible to adjust the ratio between the time during which water is ejected from the first outlet 479a and the time during which water is ejected from the second outlet 479b, without stopping the rotation of the movable disk 82 in the circumferential direction.

[0095] FIG. 12 is a flowchart illustrating the operation of the sanitary washing device according to the embodiment. For example, a user sits on the toilet seat 200 while using the toilet device. At this time, the seating detection sensor 404 detects that the user is sitting (step S101: No). When the user leaves the toilet seat 200 after using the toilet device, the seating detection sensor goes into a state where it does not detect that the user is sitting (step S101: Yes).

[0096] Then, the control unit 405 controls the flow path switching unit 472 to the state shown in FIG. 10(a) (fourth state). As a result, water is sprayed from the bypass nozzle 478a (step S102). At this time, the control unit 405 controls the nozzle driving unit 476 to advance and retract the nozzle 473. Specifically, the nozzle 473 is moved from the stored position to the most advanced position, and from the most advanced position to a predetermined position between the stored position and the most advanced position. In this way, while the nozzle 473 is moved back and forth, water is sprayed from the bypass nozzle 478a. As a result, the outer peripheral surface of the nozzle 473 is cleaned.

[0097] Thereafter, the control unit 405 controls the flow path switching unit 472 to sequentially switch between the first state shown in Fig. 9(a) and the second state shown in Fig. 9(b) and Fig. 9(c). This causes water to be sprayed toward the bowl 801 sequentially from the first nozzle 479a and the second nozzle 479b (step S103). In step S103, it is sufficient that water is sprayed from the first nozzle 479a or the second nozzle 479b. In step S103, the position of the nozzle 473 is maintained at the predetermined position described above.

[0098] Next, the control unit 405 controls the flow path switching unit 472 to return to the state (fourth state) shown in FIG. 10(a). This causes water to be sprayed from the bypass nozzle 478a (step S104). At this time, the control unit 405 controls the nozzle driving unit 476 to move the nozzle 473 from the predetermined position described above to the storage position. In this way, water is sprayed from the bypass nozzle 478a while the nozzle 473 is being retracted. This further cleans the outer peripheral surface of the nozzle 473.

[0099] In the embodiment, when the movable disk 82 is rotated in the plus direction D+ from the origin position, the opening 98 communicates with the first supply hole 91 or the second supply hole 92 among the multiple supply holes of the fixed disk, and then with the bypass supply hole 93. In other words, after the opening 98 communicates with the first supply hole 91 or the second supply hole 92, it does not communicate with other supply holes (supply holes for local cleaning) before communicating with the bypass supply hole 93. More specifically, when the movable disk 82 is rotated in the plus direction D+ from a state in which the first opening 98a communicates with the first supply hole 91 or the second supply hole 92 as shown in Figures 9(a) to 9(c), the second opening 98b communicates with the bypass supply hole 93 as shown in Figure 10(a).

[0100] In this way, because the opening 98 of the movable disk 82 communicates with the first and second supply holes 91, 92 and then with the bypass supply hole 93, when switching between a state in which the first and second jets 479a, 479b jet water and a state in which the bypass jet 478a jets water, the opening 98 does not communicate with the local cleaning supply hole, and the local cleaning jet does not jet water. Therefore, as in the operation illustrated in Fig. 12, even if switching is performed between a state in which the first and second jets 479a, 479b jet water and a state in which the bypass jet 478a jets water while the nozzle 473 is not retracted and is left advanced, no leakage of water from the local cleaning jet is caused. This eliminates the need to store nozzle 473 each time the state is switched between spraying water from first and second nozzles 479a, 479b and spraying water from bypass nozzle 478a, thereby suppressing an increase in the number of times nozzle 473 is driven.

[0101] The above describes the embodiments of the present invention. However, the present invention is not limited to these descriptions. Any design modifications made by a person skilled in the art to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, dimensions, materials, arrangement, installation form, etc. of each element of the sanitary washing device are not limited to those exemplified and can be modified as appropriate. Furthermore, the elements of each of the above-described embodiments can be combined to the extent technically possible, and such combinations are also included within the scope of the present invention as long as they include the features of the present invention. [Explanation of symbols]

[0102] 10 water supply source, 20 water conveying section, 20a pipe, 21 rear cleansing flow passage, 22 soft cleansing flow passage, 23 bidet cleansing flow passage, 24 surface cleansing flow passage, 25 first bowl jetting flow passage, 26 second bowl jetting flow passage, 80 fixed disk, 80a front surface, 80b rear surface, 82 movable disk, 82c rotation center, 82a front surface, 82b rear surface, 84 housing, 86 drive mechanism, 87 stopper mechanism, 87a first member, 87b second member, 88 stopper, 88a first stopper portion, 88b second stopper portion, 91 first supply hole, 91a through hole, 92 second supply hole, 92a through hole, 92b groove flow passage, 93 bypass supply hole, 93a Through hole, 94 bidet supply hole, 94a through hole, 94b groove flow path, 95 rear supply hole, 95a through hole, 95b groove flow path, 96 soft supply hole, 96a through hole, 96b groove flow path, 98 opening, 98a first opening, 98b second opening, θ1 jet angle, θ2 jet angle, θ3 advance angle, 100 sanitary washing device, 200 toilet seat, 300 toilet lid, 400 casing, 401 power supply circuit, 404 seating detection sensor, 405 control unit, 407 exhaust port, 408 exhaust port, 431 solenoid valve, 432 pressure regulating valve, 433 check valve, 440 heat exchanger unit, 442 flow rate sensor, 450 Electrolytic cell unit, 452 vacuum breaker, 471 flow rate adjustment unit, 472 flow path switching unit, 473 nozzle, 473a nozzle head, 473b nozzle cover, 474 local cleaning nozzle, 474a rear cleaning nozzle, 474b soft cleaning nozzle, 474c bidet cleaning nozzle, 476 nozzle drive unit, 478 nozzle cleaning unit, 478a bypass nozzle, 479a first nozzle, 479b second nozzle, 500 operation unit, 600 shielding plate, 600a shaft, 800 toilet bowl, 801 bowl, 900 toilet device, D+ positive direction, D- negative direction, D1 first nozzle direction, D2 second nozzle direction, ED advance direction, HP horizontal surface, R Area, R1, R2 Ejection range, RA Rotation axis

Claims

1. A casing; A nozzle for washing a human body part, the nozzle being movable between a storage position in which the nozzle is stored in the casing and an advanced position in which the nozzle is advanced from the casing, the nozzle having a plurality of nozzles for ejecting water; a flow path switching mechanism for switching a flow path of water supplied to the nozzle, the flow path switching mechanism including a fixed disk having a plurality of supply holes and a movable disk having an opening and overlapping with the fixed disk; Equipped with The plurality of jets include a plurality of local cleaning jets that jet water upward, a first jet that jets water downward and forward, and a second jet that jets water rearward relative to the first jets, the plurality of supply holes include a plurality of local cleaning supply holes communicating with the plurality of local cleaning nozzles, a first supply hole communicating with the first nozzle, and a second supply hole communicating with the second nozzle; The flow path switching mechanism includes: By rotating the movable disk relative to the fixed disk, it is possible to switch among a state in which the opening and the first supply hole are communicated with each other to supply water to the first jet outlet, a state in which the opening and the second supply hole are communicated with each other to supply water to the second jet outlet, and a state in which the opening and at least one of a plurality of local cleaning supply holes are communicated with each other to supply water to at least one of a plurality of local cleaning jet outlets, The method includes an operation of supplying water to the first outlet and the second outlet before and / or after use by a user, A sanitary washing device, characterized in that, among the plurality of supply holes, the first supply hole and the second supply hole are adjacent to each other in the circumferential direction of the fixed disk.

2. The sanitary washing device according to claim 1 , wherein the second supply hole has a groove flow passage extending in the circumferential direction of the fixed disk.

3. the flow passage switching mechanism has a stopper that regulates rotation of the movable disk in a circumferential direction to define an origin position of rotation of the movable disk in the circumferential direction, When the movable disk is in the origin position, the opening and the first supply hole communicate with each other, or the opening and the second supply hole communicate with each other, The sanitary washing device according to claim 1 or 2, wherein the first supply hole and the second supply hole are adjacent to each other without the stopper therebetween.

4. the plurality of supply holes further include a bypass supply hole separate from the plurality of local cleaning nozzles, The sanitary washing device described in claim 3, characterized in that when the movable disk is rotated from the original position in a direction opposite to the rotation direction regulated by the stopper, the opening communicates with the bypass supply hole after the first supply hole or the second supply hole among the plurality of supply holes.

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