Sanitary washing device

Abstract

To provide a sanitary washing device allowing a nozzle unit to stably move forward and backward.SOLUTION: A sanitary washing device has a nozzle unit moving forward and backward between a toilet bowl and a casing, and a support part to slidably support the nozzle unit. The nozzle unit is curved so as to be convex upward and has a nozzle cover moving forward and backward along an arcuate trajectory. The support part has a groove part extending in advance / retreat direction of the nozzle unit, and a rail part extending in the advance / retreat direction of the nozzle unit at a position different from the groove part. The nozzle unit has a projection that is held so as to be nipped from above and below by the groove part and line-contacts with the groove part, and a concave part held so as to nip the rail part from above and below.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] A sanitary washing device equipped with a nozzle that advances into a toilet bowl when washing private parts is known (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] The nozzle advances into the toilet bowl by sliding against a support that supports the nozzle. If the nozzle or support becomes worn due to the nozzle moving back and forth, there is a risk that the nozzle will no longer be able to move back and forth stably.

[0005] The aspects of the present invention have been made based on the recognition of such problems, and have an object to provide a sanitary washing device that can stably move a nozzle back and forth. [Means for solving the problem]

[0006] A first invention is a sanitary washing device comprising: a nozzle unit that moves back and forth between a toilet bowl and a casing; and a support part that slidably supports the nozzle unit, wherein the nozzle unit is curved so as to be convex upwards, and has a nozzle cover that moves back and forth along an arc-shaped trajectory, the support part having a groove part that extends in the direction of movement of the nozzle unit, and a rail part that extends in the direction of movement of the nozzle unit at a position different from the groove part, and the nozzle unit has a protrusion that is held so as to be sandwiched between the groove part from above and below and makes line contact with the groove part, and a recessed part that is held so as to sandwich the rail part from above and below.

[0007] According to this sanitary washing device, the nozzle unit has a nozzle cover that is curved so as to be convex upward and moves forward and backward along an arc-shaped track. This allows the height dimension of the casing to be as low as possible, thereby improving the design of the sanitary washing device. In addition, the rail portion and the recessed portion, and the groove portion and the protruding portion are engaged so as to be sandwiched in the vertical direction. In this case, the protruding portion makes linear contact with the groove portion, thereby making the contact area with the groove portion as small as possible. This makes it possible to suppress rattling and misalignment of the water discharge point due to wear, even if the support portion and the nozzle unit are repeatedly slid. Therefore, the nozzle unit can move forward and backward stably while ensuring the strength of the support portion and the nozzle unit.

[0008] A second invention is a sanitary washing device characterized in that, in the first invention, the protrusion is provided on one side of the nozzle unit in the left-right direction, and the recess is provided on the other side of the nozzle unit in the left-right direction.

[0009] According to this sanitary washing device, the projection and recess of the nozzle unit can be efficiently engaged with the groove and rail of the support part, so that the nozzle unit can be moved back and forth stably.

[0010] A third invention is the sanitary washing device according to the first or second invention, characterized in that the protrusion is provided above the recess.

[0011] According to this sanitary washing device, it is possible to prevent the weight of the nozzle unit or the load generated when the nozzle unit moves back and forth from being applied excessively to the protrusion.

[0012] A fourth invention is the sanitary washing device according to the first or second invention, characterized in that the recess has a protrusion that contacts the rail portion.

[0013] This sanitary washing device can prevent the recess from coming into contact with the rail at multiple points and becoming worn, thereby preventing the nozzle unit from wobbling and the water discharge point from shifting.

[0014] A fifth invention is a sanitary washing device according to the fourth invention, characterized in that the convex portion has an upper convex portion facing the upper surface of the rail portion and a lower convex portion facing the lower surface of the rail portion, and the protruding dimension of the upper convex portion is larger than the protruding dimension of the lower convex portion.

[0015] Due to the arcuate orbit of the nozzle unit, the upper convex portion is more likely to wear out than the lower convex portion. With this sanitary washing device, the recess can have a longer life by making the protruding dimension H1 of the upper convex portion larger than the protruding dimension H2 of the lower convex portion. In addition, rattling of the nozzle unit and misalignment of the water discharge point can be suppressed for a long period of time. Effect of the Invention

[0016] According to an aspect of the present invention, a sanitary washing device capable of stably operating a nozzle unit is provided. [Brief description of the drawings]

[0017] [Figure 1] 1 is a perspective view showing a toilet apparatus equipped with a sanitary washing device according to an 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] 13 is a side view showing a state in which the cover portion is removed from the main body portion of the support portion. FIG. [Diagram 5] 5 is a side view showing a state in which a gear and a belt are removed from the support part in FIG. 4. FIG. [Figure 6] 6 is a cross-sectional view of the local cleaning device in FIG. 5, taken from the direction of the arrow AA. [Figure 7] FIG. 2 is a perspective view of the private parts washing device as seen obliquely from behind. [Figure 8] 1 is a perspective view of the support portion seen obliquely from the rear. FIG. [Figure 9] FIG. 4 is a side view showing the nozzle unit alone. [Figure 10] FIG. 4 is a rear view of the nozzle unit as seen from the rear. [Figure 11] 10 is an enlarged side view of the protrusion and the holding portion in FIG. 9. FIG. 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, like components are designated by like 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 an 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 81a, the soft cleansing water outlet 82a, and the bidet cleansing water outlet 83a 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 adjuster 71 and a flow path switching unit 72 are housed. The case 73 is also provided with a protrusion 73a and a recess 73b that are slidably held by a support part 40 described later. The protrusion 73a and the recess 73b will be described later.

[0037] A posterior cleansing flow path 81, a soft cleansing flow path 82, a bidet cleansing flow path 83, a first bowl jetting flow path 84, a second bowl jetting flow path 85, and a surface cleansing flow path 75 are provided downstream of the flow path switching unit 72. The posterior cleansing flow path 81, the soft cleansing flow path 82, the bidet cleansing flow path 83, the first bowl jetting flow path 84, and the second bowl jetting flow path 85 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 bottom washing flow path 81 flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the bottom washing water outlet 81a. The soft washing flow path 82 flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the soft washing water outlet 82a. The bidet washing flow path 83 flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the bidet washing water outlet 83a. The first bowl jetting flow path 84 flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the first jetting port 84a. The second bowl jetting flow path 85 flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the second jetting port 85a. The surface washing flow path 75 flows water or functional water generated in the electrolytic cell unit 126 from the flow path switching unit 72 toward the nozzle washing 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 81, the soft cleansing flow path 82, the bidet cleansing flow path 83, the first bowl jetting flow path 84, the second bowl jetting flow path 85, and the surface cleansing flow path 75. In this manner, the flow path switching unit 72 switches between a state in which each of the multiple water outlets, such as the posterior cleansing outlet 81a, the soft cleansing outlet 82a, the bidet cleansing outlet 83a, the nozzle cleaning unit 44, and the first and second jets 84a and 85a, communicates with the pipe 110 and a state in which each of the multiple water outlets communicates with the pipe 110 and a state in which each of the multiple water outlets communicates with 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 a state in which the cover portion is removed from the main body portion of the support portion. FIG. 5 is a side view showing a state in which the gears and the belt are removed from the support part in FIG. FIG. 6 is a cross-sectional view of the private parts washing device in FIG. 5 as viewed from the direction of the arrow AA. FIG. 7 is a perspective view of the private parts washing device as seen obliquely from behind. FIG. 8 is a perspective view of the support portion as viewed obliquely from behind. FIG. 9 is a side view showing the nozzle unit alone. FIG. 10 is a rear view of the nozzle unit as seen from the rear. FIG. 11 is an enlarged side view of the protruding portion and the holding portion in FIG.

[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 has a main body part 41 and a cover part 48 that covers the side of the main body part 41. As shown in FIG. 8, the main body part 41 has a bottom part 42 extending in the front-rear direction, a vertical part 43 extending upward from the bottom part 42, and a nozzle cleaning part 44 located on the front end side of the bottom part 42 and the vertical part 43. The bottom part 42 and the vertical part 43 are inclined downward from the rear to the front. In addition, the bottom part 42 and the vertical part 43 are curved so as to be convex upward in accordance with the shape of the nozzle cover 90.

[0044] The nozzle cleaning unit 44 covers the outer periphery of the nozzle cover 90. The nozzle cleaning unit 44 cleans the outer periphery surface (body) of the nozzle cover 90, for example, by spraying functional water or water from the water discharge unit.

[0045] The support portion 40 has a groove portion 45 extending in the direction in which the nozzle unit 60 advances and retreats, and a rail portion 46 extending in the direction in which the nozzle unit 60 advances and retreats at a position different from the groove portion 45. The groove portion 45 and the rail portion 46 serve as portions that guide the nozzle unit 60 when the nozzle unit 60 advances and retreats between inside the casing 10 and inside the toilet bowl 200.

[0046] The groove 45 penetrates the vertical portion 43 in the thickness direction (left-right direction). The groove 45 has a lower surface 45a that is continuous with the bottom portion 42, and an upper surface 45b that faces the lower surface 45a in the up-down direction. The groove 45 extends in the front-rear direction and curves to be convex upward in accordance with the shape of the nozzle cover 90. A protrusion 73a of the nozzle unit 60, which will be described later, is held in the groove 45.

[0047] The rail portion 46 is provided so as to protrude in the left-right direction from the bottom portion 42. The rail portion 46 is formed in a flat plate shape extending in the front-rear direction. The rail portion 46 extends in the front-rear direction and is curved so that the upper surface 46a and the lower surface 46b are upwardly convex in correspondence with the shape of the nozzle cover 90. The rail portion 46 holds a recess 73b of the nozzle unit 60, which will be described later. The nozzle unit 60 advances and retreats along an arc-shaped track because the groove portion 45 and the rail portion 46 are curved in the front-rear direction.

[0048] The nozzle motor 50 is provided below the bottom portion 42. The nozzle motor 50 is a drive unit that moves the nozzle unit 60 forward and backward. The nozzle motor 50 is connected to the control unit 130. When the operation unit 140 is operated, the nozzle motor 50 operates based on the operation instruction.

[0049] As shown in Fig. 4, gear 52 is located on the side surface of main body 41, and is attached to a rotating shaft 50a of nozzle motor 50. Gear 52 rotates by operation of nozzle motor 50. Cable rack 53 is located around gear 52 and meshes with gear 52. Cable rack 53 is a rack gear that converts the rotational motion of gear 52 into linear motion. Cable rack 53 engages with an engagement portion 73c provided on case 73 of flow adjustment unit 70.

[0050] When the gear 52 rotates counterclockwise from the state shown in Fig. 4, the cable rack 53 moves forward. The nozzle unit 60 advances into the toilet bowl 200 as the cable rack 53 presses the engagement portion 73c forward. On the other hand, when the gear 52 rotates clockwise, the cable rack 53 moves rearward. The nozzle unit 60 retreats into the casing 10 as the cable rack 53 presses the engagement portion 73c rearward.

[0051] 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.

[0052] 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.

[0053] The case 73 has a cylindrical protruding portion 73a that is held so as to be sandwiched from above and below in the groove portion 45 of the support portion 40, and a recessed portion 73b that is held so as to be sandwiched from above and below around the rail portion 46 of the support portion 40. As shown in Figures 5, 6 and 9, the protruding portion 73a is provided at a position corresponding to the groove portion 45 of the support portion 40. The recessed portion 73b is provided at a position corresponding to the rail portion 46 of the support portion 40.

[0054] The protrusion 73a is held so as to be sandwiched between the lower surface portion 45a and the upper surface portion 45b of the groove portion 45. As a result, the protrusion 73a slides stably in the groove portion 45. The protrusion 73a is formed in a cylindrical shape. As a result, as shown in FIG. 6, the protrusion 73a makes line contact with the lower surface portion 45a and the upper surface portion 45b of the groove portion 45 in the left-right direction. That is, the protrusion 73a is formed in a cylindrical shape to make the contact area with the groove portion 45 as small as possible. As a result, wear of the protrusion 73a and the groove portion 45 can be reduced, so that the protrusion 73a can slide stably in the groove portion 45. The protrusion 73a may be formed in a square prism shape. In such a case, the corners of the square prism of the protrusion 73a make line contact with the lower surface portion 45a and the upper surface portion 45b of the groove portion 45 in the left-right direction.

[0055] The recess 73b is open toward the left side (the rail portion 46 side). The recess 73b has an upper surface portion 73b1, a lower surface portion 73b2 facing the upper surface portion 73b1 in the up-down direction, and a rear surface portion 73b3 connecting the upper surface portion 73b1 and the lower surface portion 73b2. The recess 73b holds the rail portion 46 so as to sandwich it in the up-down direction.

[0056] As shown in FIG. 10, the protruding portion 73a is provided on one side (left side) in the left-right direction of the nozzle unit 60. That is, the protruding portion 73a is provided on the left side surface of the nozzle unit 60. Meanwhile, the recessed portion 73b is provided on the other side (right side) in the left-right direction of the nozzle unit 60. The recessed portion 73b is provided on the right side surface of the nozzle unit 60. In this example, the left side of the center of the nozzle body 80 (the dashed line in FIG. 10) is defined as one side, and the right side is defined as the other side. Note that the local cleaning device 30 may have the protruding portion 73a and the groove portion 45 provided on the other side (right side) in the left-right direction, and the recessed portion 73b and the rail portion 46 provided on one side (left side) in the left-right direction.

[0057] The nozzle unit 60 has the protruding portion 73a and the recessed portion 73b spaced apart on both the left and right sides, thereby stabilizing the engagement between the protruding portion 73a and the groove portion 45, and between the recessed portion 73b and the rail portion 46. This allows the nozzle unit 60 to move back and forth stably relative to the support portion 40.

[0058] Due to its shape, the protruding portion 73a has a lower rigidity than the recessed portion 73b. Therefore, as shown in Figures 9 to 11, the protruding portion 73a is provided above the recessed portion 73b. This makes it possible to prevent the weight of the nozzle unit 60 or the load generated when the nozzle unit 60 moves back and forth from being excessively applied to the protruding portion 73a.

[0059] The recess 73b has a protrusion 74 that comes into contact with the rail portion 46. The protrusion 74 suppresses wobbling between the recess 73b and the rail portion 46. The recess 73b can slide stably on the rail portion 46 by the protrusion 74 coming into contact with the rail portion 46. In addition, since the advanced position of the nozzle unit 60 can be stabilized, the water discharge point of the water discharged from the nozzle body 80 can be stabilized.

[0060] As shown in Fig. 11, the protrusion 74 has an upper protrusion 74a facing the upper surface 46a of the rail portion 46 and a lower protrusion 74b facing the lower surface 46b of the rail portion 46. The upper protrusion 74a has a downwardly convex curved surface and protrudes from the upper surface portion 73b1 of the recess 73b toward the lower surface portion 73b2. The lower protrusion 74b has an upwardly convex curved surface and protrudes from the lower surface portion 73b2 of the recess 73b toward the upper surface portion 73b1. The rail portion 46 is sandwiched between the upper protrusion 74a and the lower protrusion 74b of the recess 73b.

[0061] When the nozzle unit 60 moves forward and backward, the upper convex portion 74a slides on the rail portion 46 more than the lower convex portion 74b due to the weight of the nozzle unit 60. Therefore, as shown in FIG. 11, the protruding dimension H1 of the upper convex portion 74a is larger than the protruding dimension H2 of the lower convex portion 74b. This improves the life of the recessed portion 73b. That is, even if the upper convex portion 74a wears, the rattling of the nozzle unit 60 can be suppressed, and the water discharge point can be stabilized. The recessed portion 73b may have at least one of the upper convex portion 74a and the lower convex portion 74b.

[0062] The engaging portion 73c is provided above the protruding portion 73a. As shown in Fig. 4, the cable rack 53 engages with the engaging portion 73c. ​​The rotational force of the nozzle motor 50 is transmitted from the gear 52 to the engaging portion 73c via the cable rack 53. The nozzle unit 60 moves back and forth between the inside of the casing 10 and the inside of the toilet 200 as the cable rack 53 moves the engaging portion 73c in the front-rear direction.

[0063] The nozzle body 80 is provided in front of the flow adjustment unit 70. When the nozzle unit 60 is stored in the casing 10, the tip of the nozzle body 80 is located inside the nozzle cleaning section 44. Inside the nozzle body 80, a buttocks cleansing flow path 81, a soft cleansing flow path 82, a bidet cleansing flow path 83, a first bowl ejection flow path 84, and a second bowl ejection flow path 85 are provided. The water and functional water flowing into the flow adjustment unit 70 flows into the buttocks cleansing flow path 81, the soft cleansing flow path 82, the bidet cleansing flow path 83, the first bowl ejection flow path 84, the second bowl ejection flow path 85, and the surface cleaning flow path 75 by the operation of the flow path switching section 72.

[0064] A posterior cleansing water outlet 81a is provided at the end of the posterior cleansing flow path 81. A soft cleansing water outlet 82a is provided at the end of the soft cleansing flow path 82. A bidet cleansing water outlet 83a is provided at the end of the bidet cleansing flow path 83.

[0065] The nozzle body 80 can spray hot water from a buttocks cleansing water outlet 81a or a soft cleansing water outlet 82a provided at its tip to clean the buttocks of a user sitting on the toilet seat 20. The soft cleansing water outlet 82a sprays water with a softer water flow than the buttocks cleansing water outlet 81a. The nozzle body 80 can also spray hot water from a bidet cleansing water outlet 83a provided at its tip to clean the female private parts of a woman sitting on the toilet seat 20.

[0066] A first outlet 84a is provided at the end of first bowl jet passage 84. A second outlet 85a is provided at the end of second bowl jet passage 85. First outlet 84a and second outlet 85a are provided, for example, on the front surface of nozzle body 80. First outlet 84a and second outlet 85a jet water or functional water toward the inside of toilet bowl 200. First outlet 84a and second outlet 85a jet water and functional water in different directions in the front-rear direction. The water or functional water jetted from first outlet 84a and second outlet 85a into toilet bowl 200 prevents dirt from adhering to the inside of toilet bowl 200.

[0067] The nozzle cover 90 covers the outer surface of the nozzle body 80. As shown in Fig. 9, the nozzle cover 90 is curved so as to be convex upward, and moves forward and backward along an arc-shaped track. The nozzle cover 90 has holes 90a that communicate with the rear cleansing water outlet 81a, the soft cleansing water outlet 82a, and the bidet cleansing water outlet 83a, respectively, and a cutout 90b that exposes the first outlet 84a and the second outlet 85a.

[0068] According to this embodiment, the nozzle unit 60 has a nozzle cover 90 that is curved so as to be convex upward and moves back and forth along an arc-shaped track. This allows the height dimension of the local cleaning device 30 to be as small as possible. Therefore, the height dimension of the casing 10 can also be made as small as possible, improving the design of the sanitary cleaning device 100.

[0069] If the orbit of the nozzle unit 60 is made arc-shaped, the effect of wear caused by the nozzle unit 60 sliding against the support part 40 will be greater, and there is a risk that the nozzle unit 60 will become loose or the water discharge point will become misaligned.

[0070] Thus, the support portion 40 has a groove portion 45 extending in the advancing / retreating direction of the nozzle unit 60, and a rail portion 46 extending in the advancing / retreating direction of the nozzle unit 60 at a position different from the groove portion 45. The nozzle unit 60 has a cylindrical protrusion portion 73a that is held so as to be sandwiched in the groove portion 45 from above and below, and a recessed portion 73b that is held so as to sandwich the rail portion 46 from above and below.

[0071] Here, for example, if both are made into protrusions 73a, unless the rigidity of the protrusions 73a is increased, there is a risk that the nozzle unit 60 will not be able to support its own weight or the load during sliding. Therefore, the nozzle unit 60 is held by the support part 40 with one side being a cylindrical protrusion 73a and the other being a recess 73b.

[0072] The rail portion 46 and the recessed portion 73b, and the groove portion 45 and the protruding portion 73a are engaged so as to be sandwiched in the vertical direction. In addition, by making the protruding portion 73a cylindrical, the contact area with the groove portion 45 is made as small as possible. As a result, even if the support portion 40 and the nozzle unit 60 are repeatedly slid, the local cleansing device 30 can suppress the occurrence of rattling due to wear and the occurrence of misalignment of the water discharge point. Therefore, the nozzle unit 60 can move stably forward and backward while ensuring the strength of the support portion 40 and the nozzle unit 60.

[0073] Moreover, the protruding portion 73a is provided on one side in the left-right direction of the nozzle unit 60, and the recessed portion 73b is provided on the other side in the left-right direction of the nozzle unit 60. This allows efficient engagement between the support portion 40 and the nozzle unit 60. As a result, the nozzle unit 60 can be moved forward and backward stably.

[0074] In addition, the protruding portion 73a is provided above the recessed portion 73b, which makes it possible to prevent the weight of the nozzle unit 60 or the load generated when the nozzle unit 60 moves back and forth from being excessively applied to the protruding portion 73a.

[0075] Moreover, the recess 73b has a protrusion 74 that comes into contact with the rail portion 46. This prevents the recess 73b from coming into contact with the rail portion 46 at multiple points and becoming worn. This prevents the nozzle unit 60 from rattling and the water discharge point from shifting.

[0076] In this case, the convex portion 74 has an upper convex portion 74a facing the upper surface 46a of the rail portion 46 and a lower convex portion 74b facing the lower surface 46b of the rail portion 46. The protruding dimension H1 of the upper convex portion 74a is larger than the protruding dimension H2 of the lower convex portion 74b. Due to the arc-shaped trajectory of the nozzle unit 60, the upper convex portion 74a is more likely to wear out than the lower convex portion 74b. The recess 73b can improve its lifespan by making the protruding dimension H1 of the upper convex portion 74a larger than the protruding dimension H2 of the lower convex portion 74b. In addition, rattling of the nozzle unit 60 and deviation of the water discharge point can be suppressed for a long period of time.

[0077] In the above-described embodiment, the protrusion 73a and the recess 73b are provided on the case 73 of the flow adjustment unit 70. However, the present invention is not limited to this, and for example, the protrusion and the recess may be provided on the nozzle cover or the nozzle body. The protrusion and the recess may be provided at any position on the nozzle unit.

[0078] The embodiment may include the following features. (Configuration 1) a nozzle unit that moves back and forth between the toilet bowl and the casing; A support portion that slidably supports the nozzle unit; Equipped with the nozzle unit has a nozzle cover that is curved so as to be convex upward and moves forward and backward along an arc-shaped path; The support portion is A groove portion extending in a direction in which the nozzle unit advances and retreats; a rail portion extending in a direction in which the nozzle unit advances and retreats at a position different from the groove portion; having The nozzle unit includes: a protruding portion that is held in the groove portion so as to be sandwiched from above and below and that makes line contact with the groove portion; a recess that holds the rail portion so as to sandwich the rail portion from above and below; A sanitary washing device comprising: (Configuration 2) The protrusion is provided on one side of the nozzle unit in a left-right direction, The sanitary washing device according to configuration 1, wherein the recess is provided on the other side in the left-right direction of the nozzle unit. (Configuration 3) 3. The sanitary washing device according to claim 1, wherein the protrusion is provided above the recess. (Configuration 4) The sanitary washing device according to any one of configurations 1 to 3, wherein the recess has a protrusion that comes into contact with the rail portion. (Configuration 5) The protrusion is an upper convex portion facing an upper surface of the rail portion; a lower convex portion facing the lower surface of the rail portion; having The sanitary washing device according to configuration 4, wherein a protruding dimension of the upper convex portion is greater than a protruding dimension of the lower convex portion.

[0079] 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]

[0080] 10 Casing 11 Case Plate 12 Case cover 12a Lid 20 Toilet Seat 25 Toilet lid 30. Private Parts Cleaning Device 40 Support part 41 Main body 42 Bottom 43 Vertical section 44 Nozzle cleaning section 45 Groove 45a Bottom part 45b Top part 46 Rail section 46a Top side 46b Bottom surface 48 Cover part 50 nozzle motor 50a Rotating shaft 52 Gears 53 Cable rack 60 Nozzle unit 70 Flow Control Unit 71 Flow rate adjustment section 72 Flow path switching section 73 cases 73a Protrusion 73b Recess 73b1 Top part 73b2 Bottom part 73b3 Back part 73c Engagement part 74 Convex 74a Upper convex part 74b Lower convex part 75 Surface cleaning channel 80 Nozzle body 81 Rear-cleaning channel 81a Rear-cleaning water outlet 82 Soft cleaning channel 82a Soft cleaning spout 83 Bidet cleaning channel 83a Bidet flushing outlet 84 First bowl outlet passage 84a 1st spout 85 Second bowl outlet passage 85a 2nd spout 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 nozzle unit that moves back and forth between the toilet bowl and the casing; A support portion that slidably supports the nozzle unit; Equipped with the nozzle unit has a nozzle cover that is curved so as to be convex upward and moves forward and backward along an arc-shaped path; The support portion is A groove portion extending in a direction in which the nozzle unit advances and retreats; a rail portion extending in a direction in which the nozzle unit advances and retreats at a position different from the groove portion; having The nozzle unit includes: a protruding portion that is held in the groove portion so as to be sandwiched from above and below and that makes line contact with the groove portion; a recess that holds the rail portion so as to sandwich the rail portion from above and below; A sanitary washing device comprising:

2. The protrusion is provided on one side of the nozzle unit in a left-right direction, The sanitary washing device according to claim 1 , wherein the recess is provided on the other side in the left-right direction of the nozzle unit.

3. The sanitary washing device according to claim 1 or 2, wherein the protrusion is provided above the recess.

4. The sanitary washing device according to claim 1 or 2, wherein the recess has a protrusion that comes into contact with the rail portion.

5. The protrusion is an upper convex portion facing an upper surface of the rail portion; a lower convex portion facing the lower surface of the rail portion; having The sanitary washing device according to claim 4, wherein a protruding dimension of the upper convex portion is greater than a protruding dimension of the lower convex portion.

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