Sanitary washing device

Abstract

To provide a sanitary washing device capable of increasing degree of freedom of a discharge point of water discharged from a nozzle unit.SOLUTION: A sanitary washing device has a casing and a nozzle unit moving forward and backward along an arcuate trajectory between the casing and a toilet bowl. The nozzle unit comprises: a cylinder part; a nozzle head connected to a front face of the cylinder part; and a nozzle cover that covers the cylinder part and the nozzle head and is curved so as to be convex upward. The nozzle head is bent and extends from the front face of the cylinder part.SELECTED DRAWING: Figure 6

Description

[Technical field]

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

[0002] There is known a sanitary washing device equipped with a nozzle that advances into a toilet bowl when washing private parts. One such nozzle is known to be curved and moves back and forth along an arc-shaped path (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6551717 Summary of the Invention [Problem to be solved by the invention]

[0004] When the nozzle is curved, the projection distance of the nozzle may become shorter, which may make it difficult to adjust the water discharge point of the nozzle.

[0005] The aspects of the present invention have been made based on the recognition of such problems, and aim to provide a sanitary washing device that can increase the freedom of the water ejection point of the nozzle. [Means for solving the problem]

[0006] A first invention is a sanitary washing device comprising a casing and a nozzle unit that moves back and forth along an arc-shaped path between the casing and a toilet bowl, the nozzle unit having a cylindrical portion, a nozzle head connected to a front portion of the cylindrical portion, and a nozzle cover that covers the cylindrical portion and the nozzle head and is curved so as to be convex upward, and the nozzle head is bent and extends from the front portion of the cylindrical portion.

[0007] According to this sanitary washing device, the nozzle cover is curved so as to be convex upward. The nozzle unit advances and retreats along an arc-shaped trajectory. This allows the height dimension of the casing to be as low as possible, improving the design of the sanitary washing device. In addition, the nozzle head is bent and extends from the tube portion, which increases the freedom of the water discharge position.

[0008] A second invention is the sanitary washing device according to the first invention, characterized in that the front portion of the cylindrical portion is perpendicular to the longitudinal direction of the cylindrical portion.

[0009] According to this sanitary washing device, it is possible to change the inclination of the nozzle head itself while increasing the strength of the cylindrical portion side to which the weight of the nozzle head is applied.

[0010] A third invention is a sanitary washing device according to the first invention, characterized in that the nozzle head has a rear surface portion connected to the front surface portion of the tubular portion, and a tip surface portion facing the rear surface portion in the longitudinal direction of the nozzle head, and the tip surface portion is inclined in the same direction as the rear surface portion from a plane perpendicular to the longitudinal direction of the nozzle head.

[0011] According to this sanitary washing device, it is possible to prevent the nozzle unit from protruding forward when it is housed inside the casing, making it possible to provide a compact sanitary washing device.

[0012] A fourth invention is a sanitary washing device according to any one of the first to third inventions, characterized in that the tubular portion and the nozzle head have a positioning portion for determining the position of the nozzle head relative to the tubular portion.

[0013] According to this sanitary washing device, it is possible to prevent erroneous connection between the flow passage in the cylindrical portion and the flow passage in the nozzle head.

[0014] A fifth invention is a sanitary washing device according to the fourth invention, characterized in that the positioning portion has a recess provided in the tubular portion and a convex portion provided in the nozzle head and inserted into the recess.

[0015] According to this sanitary washing device, by providing a recess in the cylindrical portion, a sufficient fitting allowance can be secured, and strength can be ensured. Effect of the Invention

[0016] According to an aspect of the present invention, a sanitary washing device is provided that allows for greater freedom in the discharge point of water discharged from the nozzle unit. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing a toilet apparatus equipped with a sanitary washing device according to a first embodiment. [Diagram 2] 2 is a block diagram showing the configuration of the main parts of the sanitary washing device. FIG. [Diagram 3] 4 is a cross-sectional view of the local cleaning device in the casing as viewed from the side. FIG. [Figure 4] FIG. 4 is a side view showing the nozzle unit alone. [Diagram 5] 5 is a side view showing a state in which a nozzle cover is removed from the nozzle unit in FIG. 4. FIG. [Figure 6] FIG. 4 is an enlarged side view showing a cylindrical portion and a nozzle head. [Figure 7] 4 is a perspective view of a contact portion between a cylindrical portion and a nozzle head, as viewed obliquely from behind. FIG. [Figure 8] 8 is an exploded perspective view showing a state in which the nozzle head in FIG. 7 is removed from a cylindrical portion. FIG. [Figure 9] FIG. 11 is a side view showing a tube portion and a nozzle head of a sanitary washing device according to a second embodiment. [Figure 10] FIG. 11 is a side view showing a tube portion and a nozzle head of a sanitary washing device according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] 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 showing a toilet apparatus equipped with a sanitary washing device according to a first embodiment. As shown in Fig. 1, a toilet device 300 according to an embodiment includes a sanitary washing device 100 and a Western-style seated toilet bowl (hereinafter, for convenience of explanation, simply referred to as a "toilet bowl") 200. The sanitary washing device 100 is provided above the toilet bowl 200. The sanitary washing device 100 includes a private parts washing device 30 for washing the private parts of a user seated on the toilet seat 20.

[0019] The casing 10 has a case plate 11 and a case cover 12. The case plate 11 forms the bottom of the casing 10. The case plate 11 is placed on the rear of the toilet bowl 200. The case cover 12 is provided on top of the case plate 11 and covers the upper part of the case plate 11. The toilet seat 20 and the toilet lid 25 are rotatably supported on the case cover 12. The case cover 12 also has an openable and closable lid portion 12a in front of the nozzle unit 60, which will be described later. The lid portion 12a is pressed open when the nozzle unit 60 advances into the toilet bowl 200.

[0020] The casing 10 houses the private parts cleansing device 30 inside the space surrounded by the case plate 11 and the case cover 12. The casing 10 also houses functional parts such as an opening / closing unit that controls the opening and closing operation of the toilet seat 20 and the toilet lid 25, a toilet seat heating unit that controls the temperature of the toilet seat 20, and a communication unit that can communicate with the operation unit 140, etc.

[0021] In this specification, "upper," "lower," "front," "rear," "right," and "left" refer to directions seen by a user sitting on toilet seat 20 with their back to toilet lid 25, as shown in FIG.

[0022] FIG. 2 is a block diagram showing the configuration of the main parts of the sanitary washing device. FIG. 2 shows the main configurations of the water channel system and electrical system of the sanitary washing device 100.

[0023] 2, the sanitary washing device 100 has a pipe 110. The pipe 110 extends from a water supply source 500, such as a water main or a water tank, to the nozzle unit 60. The pipe 110 guides water supplied from the water supply source 500 to the nozzle unit 60.

[0024] A solenoid valve 120 is provided upstream of the pipeline 110. The solenoid valve 120 is an openable and closable electromagnetic valve, and controls the supply of water based on a command from a control unit 130 provided inside the casing 10. In other words, the solenoid valve 120 opens and closes the pipeline 110. By opening the solenoid valve 120, water supplied from the water supply source 500 flows into the pipeline 110.

[0025] A pressure regulating valve 121 is provided downstream of the solenoid valve 120. When the water supply pressure is high, the pressure regulating valve 121 adjusts the pressure in the pipeline 110 to a predetermined pressure range. A check valve 122 is provided downstream of the pressure regulating valve 121. The check valve 122 prevents water from flowing back upstream of the check valve 122 when, for example, the pressure in the pipeline 110 drops.

[0026] A heat exchanger unit 123 (heating section) is provided downstream of the check valve 122. The heat exchanger unit 123 has a heater and heats the water supplied from the water supply source 500 to a specified temperature. That is, the heat exchanger unit 123 generates hot water.

[0027] The heat exchanger unit 123 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 123 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.

[0028] The heat exchanger unit 123 is connected to the control unit 130. The control unit 130 controls the heat exchanger unit 123 in response to an operation of the operation unit 140 by a user, for example, to raise the temperature of the water to a temperature set by the operation unit 140.

[0029] A flow rate sensor 124 is provided downstream of the heat exchanger unit 123. The flow rate sensor 124 detects the flow rate of water discharged from the heat exchanger unit 123. In other words, the flow rate sensor 124 detects the flow rate of water flowing through the pipe 110. The flow rate sensor 124 is connected to the control unit 130. The flow rate sensor 124 inputs the detection result of the flow rate to the control unit 130.

[0030] A vacuum breaker (VB) 125 is provided downstream of the flow sensor 124. The vacuum breaker 125 has, for example, a flow path for flowing water, an intake port for taking air into the flow path, and a valve mechanism for opening and closing the intake port. For example, the valve mechanism closes the intake port when water is flowing in the flow path, and opens the intake port when the water flow stops, taking air into the flow path. In other words, the vacuum breaker 125 takes air into the pipeline 110 when there is no water flow in the pipeline 110. For example, a float valve is used as the valve mechanism.

[0031] The vacuum breaker 125 takes in air into the pipeline 110, thereby promoting drainage of water, for example, in a portion downstream of the vacuum breaker 125. The vacuum breaker 125 promotes drainage of water, for example, from the nozzle unit 60. In this way, the vacuum breaker 125 drains water from the nozzle unit 60 and takes in air into the nozzle unit 60, thereby preventing, for example, cleaning water in the nozzle unit 60 from flowing back toward the water supply source 500 (clean water).

[0032] An electrolytic cell unit 126 is provided downstream of the vacuum breaker 125. The electrolytic cell unit 126 generates a liquid containing hypochlorous acid (functional water) from the tap water by electrolyzing the tap water flowing therein. The electrolytic cell unit 126 is connected to the control unit 130. The electrolytic cell unit 126 generates functional water based on the control by the control unit 130.

[0033] The functional water generated in the electrolytic cell unit 126 may be a solution containing metal ions such as silver ions or copper ions. Alternatively, the functional water generated in the electrolytic cell unit 126 may be a solution containing electrolytic chlorine or ozone. Alternatively, the functional water generated in the electrolytic cell unit 126 may be acidic water or alkaline water.

[0034] A pressure modulation unit 127 is provided downstream of the electrolytic cell unit 126. The pressure modulation unit 127 imparts pulsation or acceleration to the flow of water in the pipe 110, and imparts pulsation to the water discharged from the rear cleansing water outlet 85b, the soft cleansing water outlet 85c, and the bidet cleansing water outlet 85d of the nozzle body 80 and the water outlet of the nozzle cleaning unit 44. That is, the pressure modulation unit 127 varies the flow state of the water flowing in the pipe 110. The pressure modulation unit 127 is connected to the control unit 130. The pressure modulation unit 127 varies the flow state of the water based on the control by the control unit 130. The pressure modulation unit 127 varies the pressure of the water in the pipe 110.

[0035] A flow adjustment unit 70 is provided downstream of the pressure modulation section 127. The flow adjustment unit 70 has a flow rate adjustment section 71 and a flow path switching section 72. The flow rate adjustment section 71 adjusts the water pressure (flow rate). The flow path switching section 72 is provided downstream of the flow rate adjustment section 71. The flow path switching section 72 opens, closes, or switches the water supply to the nozzle body 80 and the nozzle cleaning section 44. The flow rate adjustment section 71 and the flow path switching section 72 may be provided separately. The flow rate adjustment section 71 and the flow path switching section 72 are connected to the control section 130. The operation of the flow rate adjustment section 71 and the flow path switching section 72 is controlled by the control section 130.

[0036] The flow adjustment unit 70 constitutes a part of the nozzle unit 60. The flow adjustment unit 70 is connected to the rear surface of the nozzle body 80. The flow adjustment unit 70 has a case 73 in which a flow rate adjustment section 71 and a flow path switching section 72 are housed.

[0037] A posterior cleansing flow path 80a, a soft cleansing flow path 80b, a bidet cleansing flow path 80c, a first bowl jetting flow path 80d, a second bowl jetting flow path 80e, and a surface cleansing flow path 75 are provided downstream of the flow path switching unit 72. The posterior cleansing flow path 80a, the soft cleansing flow path 80b, the bidet cleansing flow path 80c, the first bowl jetting flow path 80d, and the second bowl jetting flow path 80e are provided inside the nozzle body 80. The surface cleansing flow path 75 is a pipe (not shown) that connects between the flow path switching unit 72 and the nozzle cleaning unit 44.

[0038] The posterior cleansing flow path 80a flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the posterior cleansing outlet 85b. The soft cleansing flow path 80b flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the soft cleansing outlet 85c. The bidet cleansing flow path 80c flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the bidet cleansing outlet 85d. The first bowl jetting flow path 80d flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the first outlet 85e. The second bowl jetting flow path 80e flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the second outlet 85a. Further, the surface cleaning flow path 75 allows water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching unit 72 toward the nozzle cleaning unit 44 .

[0039] The control unit 130 controls the flow path switching unit 72 to switch between opening and closing of each of the flow paths, namely, the posterior cleansing flow path 80a, the soft cleansing flow path 80b, the bidet cleansing flow path 80c, the first bowl jetting flow path 80d, the second bowl jetting flow path 80e, and the surface cleansing flow path 75. In this way, the flow path switching unit 72 switches between a state in which each of the multiple water outlets, such as the posterior cleansing outlet 85b, the soft cleansing outlet 85c, the bidet cleansing outlet 85d, the nozzle cleaning unit 44, and the first and second jets 85e and 85f, is connected to the pipe 110 and a state in which it is not connected to the pipe 110.

[0040] The control unit 130 is supplied with power from a power supply circuit 135, and controls the operation of the solenoid valve 120, the heat exchanger unit 123, the electrolytic cell unit 126, the pressure modulation unit 127, the flow rate adjustment unit 71, the flow path switching unit 72, the nozzle motor 50, etc., based on signals from the seating detection sensor 150, the flow rate sensor 124, the operation unit 140, etc. In this way, the control unit 130 controls the operation of the nozzle unit 60.

[0041] Next, the local cleansing device 30 provided inside the casing 10 will be described. FIG. 3 is a cross-sectional side view of the local cleaning device inside the casing. FIG. 4 is a side view showing the nozzle unit alone. FIG. 5 is a side view showing a state in which a nozzle cover is removed from the nozzle unit in FIG. FIG. 6 is an enlarged side view showing the cylindrical portion and the nozzle head. FIG. 7 is a perspective view of the contact portion between the cylindrical portion and the nozzle head, as viewed obliquely from behind. FIG. 8 is an exploded perspective view showing a state in which the nozzle head in FIG. 7 is removed from the cylindrical portion.

[0042] The private parts washing device 30 washes the private parts of a user seated on the toilet seat 20. In this example, the private parts washing device 30 also has a function of spraying water or functional water into the toilet bowl 200 to prevent dirt from adhering to the inside of the toilet bowl 200. This function may be provided as necessary. The private parts washing device 30 has a support part 40 provided on the case plate 11 of the casing 10, and a nozzle unit 60 slidably supported on the support part 40.

[0043] The support part 40 is located below the nozzle unit 60 and supports the nozzle unit 60 from below. The support part 40 supports the nozzle unit 60 so that it can slide in the front-rear direction. The support part 40 has a nozzle cleaning part 44 on the tip side. The nozzle cleaning part 44 covers the outer periphery of the nozzle cover 90. The nozzle cleaning part 44 cleans the outer periphery surface (body) of the nozzle cover 90, for example, by spraying functional water or water from the water discharge part.

[0044] The nozzle motor 50 is provided on the support part 40. The nozzle motor 50 serves as a drive part for moving the nozzle unit 60 forward and backward. The nozzle motor 50 is connected to the control part 130. When the operation part 140 is operated, the nozzle motor 50 operates based on the operation instruction.

[0045] The nozzle unit 60 moves forward and backward along an arc-shaped track. Specifically, as shown in Fig. 3, the nozzle unit 60 moves along an arc-shaped track between the inside of the casing 10 and the inside of the toilet bowl 200 by the operation of the nozzle motor 50.

[0046] The nozzle unit 60 has a flow adjustment unit 70, a nozzle body 80 located in front of the flow adjustment unit 70, and a nozzle cover 90 that covers the outer periphery of the nozzle body 80. The flow adjustment unit 70 has a flow rate adjustment section 71, a flow path switching section 72, and a case 73 that houses the flow rate adjustment section 71 and the flow path switching section 72.

[0047] The case 73 of the flow adjustment unit 70 is attached to the nozzle body 80. The nozzle cover 90 is attached to the case 73 and the nozzle body 80. This allows the nozzle unit 60, the flow adjustment unit 70, the nozzle body 80, and the nozzle cover 90 to slide in the front-rear direction relative to the support part 40 as a single unit.

[0048] The nozzle body 80 is provided in front of the flow adjustment unit 70. Inside the nozzle body 80, a rear cleansing flow path 80a, a soft cleansing flow path 80b, a bidet cleansing flow path 80c, a first bowl jetting flow path 80d, and a second bowl jetting flow path 80e are provided. The water and functional water flowing into the flow adjustment unit 70 flows into the rear cleansing flow path 80a, the soft cleansing flow path 80b, the bidet cleansing flow path 80c, the first bowl jetting flow path 80d, the second bowl jetting flow path 80e, and the surface cleansing flow path 75 by the operation of the flow path switching unit 72.

[0049] The nozzle body 80 has a tubular portion 81 and a nozzle head 85. The tubular portion 81 has a first tubular portion 82 and a second tubular portion 83. The first tubular portion 82 is connected to the front of the case 73 of the flow adjustment unit 70. The second tubular portion 83 is connected to the front of the first tubular portion 82. The nozzle head 85 is connected to the front of the second tubular portion 83. In this case, the nozzle head 85 is bent and extends from the second tubular portion 83 with the rear surface portion 85g connected to the front surface portion 83b of the second tubular portion 83. The specific joining state between the tubular portion 81 and the nozzle head 85 will be described later.

[0050] The first cylindrical portion 82, the second cylindrical portion 83, and the nozzle head 85 are formed, for example, from a resin material, with the outer surfaces 82a, 83a, and 85a linearly in the longitudinal direction. The first cylindrical portion 82 and the second cylindrical portion 83 may be fixed to each other, or may be detachable. The first cylindrical portion 82 and the second cylindrical portion 83 are joined to each other, for example, by welding or using a rubber packing. The first cylindrical portion 82 and the second cylindrical portion 83 may be integrally formed. The nozzle head 85 may be fixed to the second cylindrical portion 83, or may be detachable. The nozzle head 85 is joined to the second cylindrical portion 83, for example, by welding or using a rubber packing.

[0051] The posterior cleansing passage 80a, the soft cleansing passage 80b, the bidet cleansing passage 80c, the first bowl jetting passage 80d, and the second bowl jetting passage 80e extend longitudinally (front-to-back) inside the first cylindrical portion 82, the second cylindrical portion 83, and the nozzle head 85.

[0052] The nozzle head 85 has a posterior cleansing water outlet 85b, a soft cleansing water outlet 85c, a bidet cleansing water outlet 85d, a first outlet 85e, and a second outlet 85f. The posterior cleansing water outlet 85b is connected to the posterior cleansing flow path 80a. The soft cleansing water outlet 85c is connected to the soft cleansing flow path 80b. The bidet cleansing water outlet 85d is connected to the bidet cleansing flow path 80c. The first outlet 85e is connected to the first bowl outlet flow path 80d. The second outlet 85f is connected to the second bowl outlet flow path 80e.

[0053] The nozzle body 80 can spray hot water from the rear cleansing water outlet 85b or the soft cleansing water outlet 85c of the nozzle head 85 to wash the "buttocks" of a user sitting on the toilet seat 20. The soft cleansing water outlet 85c sprays water with a softer water flow than the rear cleansing water outlet 85b. The nozzle body 80 can also spray hot water from the bidet cleansing water outlet 85d of the nozzle head 85 to wash the female private parts of a woman sitting on the toilet seat 20.

[0054] The first and second outlets 85e and 85f are arranged side by side, for example, on the tip surface portion 85h of the nozzle head 85. The first and second outlets 85e and 85f spray water or functional water toward the inside of the toilet bowl 200. The first and second outlets 85e and 85f spray water and functional water in different directions in the front-to-rear direction. The water or functional water sprayed into the toilet bowl 200 from the first and second outlets 85e and 85f prevents dirt from adhering to the inside of the toilet bowl 200.

[0055] Next, the joining state between the cylindrical portion 81 (second cylindrical portion 83) and the nozzle head 85 will be described with reference to FIG.

[0056] If the nozzle unit 60 is curved and moved back and forth along an arc-shaped path, the distance the nozzle unit 60 advances will be short, which may make it difficult to adjust the water discharge point. That is, if the nozzle unit 60 advances too far into the toilet bowl 200, the water discharged from the buttocks cleansing water outlet 85b, the soft cleansing water outlet 85c, and the bidet cleansing water outlet 85d may be located behind the user's private parts.

[0057] Therefore, the nozzle head 85 is attached to the second cylindrical portion 83 so as to bend and extend from the front surface portion 83b of the cylindrical portion 81 (second cylindrical portion 83). Specifically, the nozzle head 85 is bent and extends obliquely downward from the front surface portion 83b of the second cylindrical portion 83.

[0058] 6, the front surface 83b of the second cylindrical portion 83 extends perpendicular to the longitudinal direction of the second cylindrical portion 83. The rear surface 85g of the nozzle head 85 is inclined with respect to a vertical plane AA in the up-down direction with respect to the longitudinal direction of the nozzle head 85. The vertical plane AA is a plane forming a cross section of the nozzle head 85. In other words, when the nozzle head 85 is held horizontally, the upper end of the rear surface 85g protrudes further rearward (towards the second cylindrical portion 83) than the lower end.

[0059] In other words, the angle α between the rear surface 85g of the nozzle head 85 and the outer surface 85a is less than 90°. The angle α is set based on the distance the nozzle unit 60 advances into the toilet bowl 200, the positions of the posterior cleansing water outlet 85b, the soft cleansing water outlet 85c, and the bidet cleansing water outlet 85d, etc. By making the angle α smaller, the openings (water outlet direction) of the posterior cleansing water outlet 85b, the soft cleansing water outlet 85c, and the bidet cleansing water outlet 85d can be directed forward.

[0060] In this way, by tilting the nozzle head 85 downward, the openings of the rear cleansing water outlet 85b, the soft cleansing water outlet 85c, and the bidet cleansing water outlet 85d can be directed forward. Therefore, even if the nozzle unit 60 advances only a short distance into the toilet bowl 200, it can efficiently discharge water toward the user's private parts.

[0061] Next, the tip surface portion 85h of the nozzle head 85 is inclined in the same direction as the rear surface portion 85g from a plane AA perpendicular to the longitudinal direction of the nozzle head 85. In this example, the tip surface portion 85h extends parallel to the rear surface portion 85g. Also, as shown in FIG. 6, when the nozzle unit 60 is stored in the casing 10, the tip surface portion 85h extends parallel to the lid portion 12a. This allows the nozzle unit 60 to be as close as possible to the lid portion 12a when stored in the casing 10. Therefore, a compact sanitary washing device 100 can be provided.

[0062] 7 and 8, the second cylindrical portion 83 and the nozzle head 85 have a positioning portion 87 for determining the position of the nozzle head 85 relative to the second cylindrical portion 83. The positioning portion 87 has a recess 83c provided in the second cylindrical portion 83, and a protrusion 85i provided in the nozzle head 85 and inserted into the recess 83c.

[0063] The recesses 83c extend rearward (toward the first cylindrical portion 82) from the front surface 83b of the second cylindrical portion 83. The recesses 83c are provided between the flow paths 80a-80e inside the second cylindrical portion 83. The protrusions 85i are located between the flow paths 80a-80e of the nozzle head 85, and protrude rearward from the rear surface 85g. The protrusions 85i are adapted to be fitted into, for example, the recesses 83c.

[0064] When the nozzle head 85 is fixed to the second cylindrical portion 83, the convex portion 85i is press-fitted into the concave portion 83c to position the second cylindrical portion 83 and the nozzle head 85. In this state, the front surface 83b of the second cylindrical portion 83 and the rear surface 85g of the nozzle head 85 are fixed to each other, whereby the second cylindrical portion 83 and the nozzle head 85 can be integrated together.

[0065] The positioning portion 87 prevents the flow paths 80a-80e of the second cylindrical portion 83 from being erroneously connected to the flow paths 80a-80e of the nozzle head 85. In addition, the recess 83c extends in the longitudinal direction from the front surface 83b, which is a surface perpendicular to the longitudinal direction, and therefore a sufficient fitting margin can be ensured. Note that the positioning portion 87 may be provided with the recess 83c and the protrusion 85i reversed. That is, the positioning portion 87 may have a protrusion provided on the second cylindrical portion 83 and a recess provided on the nozzle head 85 to be inserted into the protrusion.

[0066] The nozzle cover 90 covers the outer surfaces 82a, 83a, and 85a of the nozzle body 80. As shown in Fig. 4, the nozzle cover 90 is curved so as to be convex upward. As shown in Figs. 4 and 5, the first cylindrical portion 82, the second cylindrical portion 83, and the nozzle head 85 extend within the nozzle cover 90 so as to bend downward in stages. Note that the second cylindrical portion 83 does not have to be bent with respect to the first cylindrical portion 82.

[0067] The nozzle cover 90 has holes 90a communicating with the rear cleansing water outlet 85b, the soft cleansing water outlet 85c, and the bidet cleansing water outlet 85d, respectively, and a notch 90b exposing the first outlet 85e and the second outlet 85f. The front part of the nozzle cover 90 is aligned with the tip surface part 85h of the nozzle head 85 and extends parallel to the tip surface part 85h.

[0068] Next, a nozzle unit according to a second embodiment will be described with reference to FIG. FIG. 9 is a side view showing a tube portion and a nozzle head of a sanitary washing device according to the second embodiment.

[0069] In the first embodiment, the case where the front surface 83b of the second cylindrical portion 83 is perpendicular to the longitudinal direction of the second cylindrical portion 83 has been described as an example. However, the present invention is not limited to this. For example, as in the second embodiment shown in FIG. 9, the rear surface 85g of the nozzle head 85 may be perpendicular to the longitudinal direction of the nozzle head 85. In this case, the front surface 83b of the cylindrical portion 81 (second cylindrical portion 83) is inclined from a vertical plane BB in the up-down direction with respect to the longitudinal direction of the second cylindrical portion 83. That is, when the second cylindrical portion 83 is in a horizontal state, the upper end of the front surface 83b protrudes forward (toward the nozzle head 85) more than the lower end. In other words, the angle β between the front surface 83b of the second cylindrical portion 83 and the outer surface 83a is less than 90°. In this embodiment, the nozzle head 85 may be bent and extended from the front surface 83b of the cylindrical portion 81.

[0070] Next, a nozzle unit according to a third embodiment will be described with reference to FIG. FIG. 10 is a side view showing a tube portion and a nozzle head of a sanitary washing device according to a third embodiment. In the first embodiment, the case where the front surface 83b of the second cylindrical portion 83 is perpendicular to the longitudinal direction of the second cylindrical portion 83 has been described as an example. Also, in the second embodiment, the case where the rear surface 85g of the nozzle head 85 is perpendicular to the longitudinal direction of the nozzle head 85 has been described as an example. However, the present invention is not limited to this. For example, as in a third embodiment shown in FIG. 10, the front surface 83b of the second cylindrical portion 83 does not have to be perpendicular to the longitudinal direction of the second cylindrical portion 83, and the rear surface 85g of the nozzle head 85 does not have to be perpendicular to the longitudinal direction of the nozzle head 85.

[0071] In this case, the rear surface 85g of the nozzle head 85 is inclined from a vertical plane AA in the vertical direction with respect to the longitudinal direction of the nozzle head 85. Also, the front surface 83b of the tubular portion 81 (second tubular portion 83) is inclined from a vertical plane BB in the vertical direction with respect to the longitudinal direction of the second tubular portion 83. That is, the angle α between the rear surface 85g of the nozzle head 85 and the outer surface 85a is greater than 90°. Also, the angle β between the front surface 83b of the second tubular portion 83 and the outer surface 83a is less than 90°. In this manner, the nozzle head 85 may be bent and extended from the front surface 83b of the tubular portion 81.

[0072] The embodiment may include the following features. (Configuration 1) A casing; a nozzle unit that moves back and forth along an arc-shaped path between the casing and the toilet bowl; Equipped with The nozzle unit includes: A cylindrical portion and A nozzle head connected to a front surface of the cylindrical portion; a nozzle cover that covers the cylindrical portion and the nozzle head and is curved so as to be convex upward; having The sanitary washing device, wherein the nozzle head is bent and extends from the front portion of the cylindrical portion. (Configuration 2) 2. The sanitary washing device according to claim 1, wherein the front surface of the cylindrical portion is perpendicular to a longitudinal direction of the cylindrical portion. (Configuration 3) The nozzle head is a rear surface portion connected to the front surface portion of the tubular portion; a tip surface portion opposed to the rear surface portion in the longitudinal direction of the nozzle head; having The sanitary washing device according to configuration 1 or 2, wherein the tip surface portion is inclined in the same direction as the rear surface portion from a plane perpendicular to the longitudinal direction of the nozzle head. (Configuration 4) The sanitary washing device according to any one of configurations 1 to 3, wherein the tubular portion and the nozzle head have a positioning portion for determining a position of the nozzle head relative to the tubular portion. (Configuration 5) The positioning portion is A recess provided in the cylindrical portion; a protrusion provided on the nozzle head and inserted into the recess; The sanitary washing device according to configuration 4, further comprising:

[0073] The above describes the embodiments of the present invention. However, the present invention is not limited to these descriptions. Regarding the above-mentioned embodiments, those in which a person skilled in the art makes appropriate design changes are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, dimensions, materials, arrangement, etc. of each element of a sanitary washing device are not limited to those exemplified, and can be appropriately changed. In addition, each element of each of the above-mentioned embodiments can be combined to the extent technically possible, and combinations of these are also included in the scope of the present invention as long as they include the features of the present invention. [Explanation of symbols]

[0074] 10 Casing 11 Case Plate 12 Case cover 12a Lid 20 Toilet Seat 25 Toilet lid 30. Private Parts Cleaning Device 40 Support part 44 Nozzle cleaning section 50 nozzle motor 60 Nozzle unit 70 Flow Control Unit 71 Flow rate adjustment section 72 Flow path switching section 73 cases 75 Surface cleaning channel 80 Nozzle body 80a Rear-washing channel 80b Soft cleaning channel 80c Bidet Cleansing Channel 80d First bowl outlet passage 80e Second bowl outlet passage 81 Cylinder part 82 First cylinder part 82a Exterior 83 Second cylinder part 83a Exterior 83b Front part 83c Recess 85 Nozzle Head 85a Exterior 85b Rear-cleaning water outlet 85c Soft cleaning spout 85d Bidet cleaning spout 85e 1st spout 85f 2nd spout 85g rear part 85h Tip surface part 85i convex part 87 Positioning part 90 Nozzle cover 90a hole 90b Notch 100 Sanitary cleaning equipment 110 Pipeline 120 Solenoid valve 121 Pressure Regulating Valve 122 Check valve 123 Heat Exchanger Unit 124 Flow Sensor 125 Vacuum Breaker 126 Electrolyzer Unit 127 Pressure Modulation Section 130 Control section 135 Power supply circuit 140 Operation section 150 Seated detection sensor 200 Toilet 300 Toilet equipment 500 Water source

Claims

1. A casing; a nozzle unit that moves back and forth along an arc-shaped path between the casing and the toilet bowl; Equipped with The nozzle unit includes: A cylindrical portion and A nozzle head connected to a front surface of the cylindrical portion; a nozzle cover that covers the cylindrical portion and the nozzle head and is curved so as to be convex upward; having The sanitary washing device, wherein the nozzle head is bent and extends from the front portion of the cylindrical portion.

2. The sanitary washing device according to claim 1 , wherein the front surface of the cylindrical portion is perpendicular to a longitudinal direction of the cylindrical portion.

3. The nozzle head is a rear surface portion connected to the front surface portion of the tubular portion; a tip surface portion opposed to the rear surface portion in the longitudinal direction of the nozzle head; having The sanitary washing device according to claim 1 , wherein the tip surface portion is inclined in the same direction as the rear surface portion from a plane perpendicular to the longitudinal direction of the nozzle head.

4. The sanitary washing device according to any one of claims 1 to 3, wherein the cylindrical portion and the nozzle head have a positioning portion for determining a position of the nozzle head relative to the cylindrical portion.

5. The positioning portion is A recess provided in the cylindrical portion; a protrusion provided on the nozzle head and inserted into the recess; The sanitary washing device according to claim 4, further comprising:

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