Sanitary cleaning equipment

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

[0006] , , ,

[0005] , ,

[0001] Aspects of the present invention generally relate to a sanitary cleaning device.

Background Art

[0002] There is known a sanitary cleaning device provided with a nozzle that advances into a toilet bowl when performing local cleaning. As such a nozzle, one having a curved shape and moving back and forth along an arc-shaped track is known (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the nozzle is curved, the advancing distance of the nozzle may be shortened. Then, it may become difficult to adjust the water discharge point of the water discharged from the nozzle.

[0005] Aspects of the present invention have been made based on the recognition of such problems, and an object thereof is to provide a sanitary cleaning device capable of increasing the degree of freedom of the water discharge point of the water discharged from the nozzle.

Means for Solving the Problems

[0007] In this sanitary cleaning device, the nozzle cover is curved so as to be convex upwards. The nozzle unit moves back and forth along an arc-shaped trajectory. This allows the height dimension of the casing to be kept as low as possible, thereby improving the design of the sanitary cleaning device. In addition, because the nozzle head bends and extends from the cylindrical part, the degree of freedom in the water discharge position is increased.

[0008] The second invention is a sanitary cleaning device characterized in that, in the first invention, the front portion of the cylindrical portion is perpendicular to the longitudinal direction of the cylindrical portion.

[0009] This sanitary cleaning device allows for increasing the strength of the cylindrical section that bears the weight of the nozzle head, while also changing the tilt of the nozzle head itself.

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

[0011] This sanitary cleaning device allows for reduced forward protrusion of the nozzle unit while it is housed within the casing, thus providing a compact sanitary cleaning device.

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

[0013] This sanitary cleaning device prevents the misconnection of the flow path in the cylindrical section and the flow path in the nozzle head.

[0014] The fifth invention is a sanitary washing device according to the fourth invention, wherein the positioning portion has a concave portion provided in the cylindrical portion and a convex portion provided in the nozzle head and inserted into the concave portion.

[0015] According to this sanitary washing device, by providing the concave portion in the cylindrical portion, a sufficient fitting margin can be ensured and the strength can be guaranteed.

Advantages of the Invention

[0016] According to an aspect of the present invention, there is provided a sanitary washing device capable of increasing the degree of freedom of the water discharge point of water discharged from the nozzle unit.

Brief Description of the Drawings

[0017] [Figure 1] It is a perspective view showing a toilet device provided with a sanitary washing device according to the first embodiment. [Figure 2] It is a block diagram showing the main configuration of the sanitary washing device. [Figure 3] It is a cross-sectional view of the local washing device in the casing seen from the side. [Figure 4] It is a side view showing the nozzle unit alone. [Figure 5] [[ID=3I]]It is a side view showing a state where the nozzle cover is removed from the nozzle unit in FIG. 4. [Figure 6] It is a side view showing an enlarged view of the cylindrical portion and the nozzle head. [Figure 7] It is a perspective view of the contact portion between the cylindrical portion and the nozzle head seen from obliquely rearward. [Figure 8] It is an exploded perspective view showing a state where the nozzle head in FIG. 7 is removed from the cylindrical portion. [Figure 9] It is a side view showing the cylindrical portion and the nozzle head of the sanitary washing device according to the second embodiment. [Figure 10] It is a side view showing the cylindrical portion and the nozzle head of the sanitary washing device according to the third embodiment.

Modes for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same reference numerals are assigned to the same components, and detailed descriptions thereof will be omitted as appropriate. FIG. 1 is a perspective view showing a toilet device provided 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 toilet seat (hereinafter, simply referred to as "toilet" for convenience of explanation) 200. The sanitary washing device 100 is provided above the toilet 200. The sanitary washing device 100 includes a local washing device 30 for washing the local part of a user sitting on the toilet seat 20.

[0019] The casing 10 has a case plate 11 and a case cover 12. The case plate 11 constitutes the bottom of the casing 10. The case plate 11 is placed on the rear part of the toilet 200. The case cover 12 is provided on 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 by the case cover 12. Further, the case cover 12 has an openable and closable lid portion 12a in front of a nozzle unit 60 described later. The lid portion 12a is pressed and opened when the nozzle unit 60 advances into the toilet 200.

[0020] The casing 10 houses the local washing device 30 inside the space surrounded by the case plate 11 and the case cover 12. Further, inside the casing 10, functional parts such as an opening and closing unit for controlling the opening and closing operations of the toilet seat 20 and the toilet lid 25, a toilet seat heating unit for controlling the temperature of the toilet seat 20, and a communication unit capable of communicating with an operation unit 140 are housed.

[0021] In the present specification, "up", "down", "front", "rear", "right", and "left" are the directions as seen from a user sitting on the toilet seat 20 with the toilet lid 25 on the back, as shown in FIG. 1.

[0022] FIG. 2 is a block diagram showing the main part configuration of the sanitary washing device. Figure 2 shows the main components of the waterway system and electrical system of the sanitary cleaning device 100.

[0023] As shown in Figure 2, the sanitary cleaning device 100 has a pipeline 110. The pipeline 110 extends from a water source 500, such as a water supply or a water storage tank, to a nozzle unit 60. The pipeline 110 guides the water supplied from the water source 500 to the nozzle unit 60.

[0024] A solenoid valve 120 is installed on the upstream side of the pipeline 110. The solenoid valve 120 is an openable and closable electromagnetic valve that controls the water supply based on commands from a control unit 130 located 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 source 500 flows into the pipeline 110.

[0025] A pressure regulating valve 121 is provided downstream of the solenoid valve 120. The pressure regulating valve 121 adjusts the pressure in the pipeline 110 to a predetermined pressure range when the water supply pressure is high. A check valve 122 is provided downstream of the pressure regulating valve 121. The check valve 122 suppresses the backflow of water upstream of the check valve 122 when the pressure in the pipeline 110 drops.

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

[0027] The heat exchanger unit 123 is an instantaneous heating type heat exchanger, for example, using a ceramic heater. Compared to a hot water storage heating type heat exchanger, an instantaneous heating type heat exchanger can raise the water temperature to a specified temperature in a shorter time. Note that the heat exchanger unit 123 is not limited to an instantaneous heating type heat exchanger, and may also be a hot water storage heating type heat exchanger. Furthermore, the heating section is not limited to a heat exchanger, and may use other heating methods, such as 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, for example, the user's operation of the control unit 140, thereby raising the temperature of the water to the temperature set on the control unit 140.

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

[0030] Downstream of the flow sensor 124, a vacuum breaker (VB) 125 is provided. The vacuum breaker 125 has, for example, a flow path for water, an air intake for taking air into the flow path, and a valve mechanism for opening and closing the air intake. The valve mechanism, for example, closes the air intake when water is flowing in the flow path, and opens the air intake 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 for the valve mechanism.

[0031] The vacuum breaker 125 promotes the draining of water downstream of the vacuum breaker 125 by drawing air into the pipeline 110. The vacuum breaker 125 promotes the draining of water from, for example, the nozzle unit 60. In this way, the vacuum breaker 125 prevents backflow of, for example, the cleaning water inside the nozzle unit 60 to the water supply source 500 (water supply) side by draining the water from the nozzle unit 60 and drawing air into the nozzle unit 60.

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

[0033] The functional water produced in the electrolytic cell unit 126 may be a solution containing metal ions such as silver ions or copper ions. Alternatively, the functional water produced in the electrolytic cell unit 126 may be a solution containing electrolyzed chlorine or ozone. Alternatively, the functional water produced 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 water flow in the pipeline 110, causing pulsation to the water discharged from the posterior wash outlet 85b, the soft wash outlet 85c, and the bidet wash outlet 85d of the nozzle body 80, as well as from the discharge outlet of the nozzle washing unit 44. In other words, the pressure modulation unit 127 changes the flow state of the water flowing in the pipeline 110. The pressure modulation unit 127 is connected to the control unit 130. The pressure modulation unit 127 changes the flow state of the water based on the control by the control unit 130. The pressure modulation unit 127 changes the pressure of the water in the pipeline 110.

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

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

[0037] Downstream of the flow path switching section 72, there are a rear-facing washing flow path 80a, a soft washing flow path 80b, a bidet washing flow path 80c, a first bowl ejection flow path 80d, a second bowl ejection flow path 80e, and a surface washing flow path 75. The rear-facing washing flow path 80a, the soft washing flow path 80b, the bidet washing flow path 80c, the first bowl ejection flow path 80d, and the second bowl ejection flow path 80e are located inside the nozzle body 80. The surface washing flow path 75 is a conduit (not shown) connecting the flow path switching section 72 and the nozzle washing section 44.

[0038] The posterior cleansing channel 80a flows water or functional water generated in the electrolytic cell unit 126 from the channel switching section 72 towards the posterior cleansing outlet 85b. The soft cleansing channel 80b flows water or functional water generated in the electrolytic cell unit 126 from the channel switching section 72 towards the soft cleansing outlet 85c. The bidet cleansing channel 80c flows water or functional water generated in the electrolytic cell unit 126 from the channel switching section 72 towards the bidet cleansing outlet 85d. The first bowl discharge channel 80d flows water or functional water generated in the electrolytic cell unit 126 from the channel switching section 72 towards the first outlet 85e. The second bowl discharge channel 80e flows water or functional water generated in the electrolytic cell unit 126 from the channel switching section 72 towards the second outlet 85a. Furthermore, the surface cleaning channel 75 flows water or functional water generated in the electrolytic cell unit 126 from the channel switching section 72 to the nozzle cleaning section 44.

[0039] The control unit 130 controls the flow path switching unit 72 to switch the opening and closing of each of the flow paths: the posterior cleansing flow path 80a, the soft cleansing flow path 80b, the bidet cleansing flow path 80c, the first bowl discharge flow path 80d, the second bowl discharge 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 discharge 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 discharge outlets 85e and 85f, is connected to the pipeline 110 and a state in which it is not connected to the pipeline 110.

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

[0041] Next, we will describe the local cleaning device 30 installed inside the casing 10. Figure 3 is a cross-sectional view of the local cleaning device inside the casing, seen from the side. Figure 4 is a side view showing the nozzle unit on its own. Figure 5 is a side view showing the nozzle unit in Figure 4 with the nozzle cover removed. Figure 6 is a magnified side view showing the cylindrical section and the nozzle head. Figure 7 is a perspective view of the contact area between the cylindrical section and the nozzle head, seen from a diagonal rearward angle. Figure 8 is an exploded perspective view showing the nozzle head removed from the cylindrical part, as shown in Figure 7.

[0042] The local cleaning device 30 cleans the private parts of the user while they are seated on the toilet seat 20. In this example, the local cleaning device 30 also has a function to spray 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 needed. The local cleaning device 30 has a support part 40 provided on the case plate 11 of the casing 10 and a nozzle unit 60 that is slidably supported on the support part 40.

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

[0044] The nozzle motor 50 is located on the support section 40. The nozzle motor 50 is the drive unit that moves the nozzle unit 60 forward and backward. The nozzle motor 50 is connected to the control unit 130. The nozzle motor 50 operates based on the operation instructions when the operation unit 140 is operated.

[0045] The nozzle unit 60 moves back and forth along an arc-shaped trajectory. Specifically, as shown in Figure 3, the nozzle unit 60 moves along an arc-shaped trajectory 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 includes a flow control unit 70, a nozzle body 80 located in front of the flow control unit 70, and a nozzle cover 90 that covers the outer circumference of the nozzle body 80. The flow control unit 70 includes 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 control unit 70 is attached to the nozzle body 80. The nozzle cover 90 is attached to both the case 73 and the nozzle body 80. As a result, the nozzle unit 60, consisting of the flow control unit 70, the nozzle body 80, and the nozzle cover 90, slides together in the front-rear direction relative to the support portion 40.

[0048] The nozzle body 80 is located in front of the flow control unit 70. Inside the nozzle body 80 are a rear wash channel 80a, a soft wash channel 80b, a bidet wash channel 80c, a first bowl spray channel 80d, and a second bowl spray channel 80e. Water and functional water flowing into the flow control unit 70 are directed to the rear wash channel 80a, the soft wash channel 80b, the bidet wash channel 80c, the first bowl spray channel 80d, the second bowl spray channel 80e, and the surface wash channel 75 by the operation of the flow channel switching unit 72.

[0049] The nozzle body 80 has a cylindrical section 81 and a nozzle head 85. The cylindrical section 81 has a first cylindrical section 82 and a second cylindrical section 83. The first cylindrical section 82 is connected to the front of the case 73 of the flow control unit 70. The second cylindrical section 83 is connected to the front of the first cylindrical section 82. The nozzle head 85 is connected to the front of the second cylindrical section 83. In this case, the nozzle head 85 extends bent from the second cylindrical section 83 with its rear surface 85g connected to the front surface 83b of the second cylindrical section 83. The specific connection between the cylindrical section 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 from, for example, a resin material, with their outer surfaces 82a, 83a, and 85a linearly oriented in the longitudinal direction. The first cylindrical portion 82 and the second cylindrical portion 83 may be fixed together or detachable. The first cylindrical portion 82 and the second cylindrical portion 83 are joined together, for example, by welding or a rubber gasket. Alternatively, 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 detachable. The nozzle head 85 is joined to the second cylindrical portion 83, for example, by welding or a rubber gasket.

[0051] The rear washing channel 80a, the gentle washing channel 80b, the bidet washing channel 80c, the first bowl ejection channel 80d, and the second bowl ejection channel 80e extend longitudinally (front-to-back direction) inside the first cylindrical section 82, the second cylindrical section 83, and the nozzle head 85.

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

[0053] The nozzle body 80 can wash the buttocks of a user sitting on the toilet seat 20 by spraying hot water from the posterior wash nozzle 85b or the soft wash nozzle 85c of the nozzle head 85. The soft wash nozzle 85c sprays water with a softer flow than the posterior wash nozzle 85b. In addition, the nozzle body 80 can wash the female genitals of a woman sitting on the toilet seat 20 by spraying hot water from the bidet wash nozzle 85d of the nozzle head 85.

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

[0055] Next, the joining state of the cylindrical portion 81 (second cylindrical portion 83) and the nozzle head 85 will be explained with reference to Figure 6.

[0056] If the nozzle unit 60 is curved and moved back and forth along an arc-shaped trajectory, the distance the nozzle unit 60 extends will be shortened, which may make it difficult to adjust the water discharge point. In other words, if the distance the nozzle unit 60 extends into the toilet bowl 200 is short, the water discharged from the posterior wash nozzle 85b, the soft wash nozzle 85c, and the bidet wash nozzle 85d may be behind the user's genitals.

[0057] Therefore, the nozzle head 85 is attached to the second cylindrical portion 83 (second cylindrical portion 83) in such a way that it bends and extends from the front surface 83b of the cylindrical portion 81 (second cylindrical portion 83). Specifically, the nozzle head 85 bends and extends diagonally downward from the front surface 83b of the second cylindrical portion 83.

[0058] As shown in Figure 6, the front portion 83b of the second cylindrical portion 83 extends perpendicularly to the longitudinal direction of the second cylindrical portion 83. The rear portion 85g of the nozzle head 85 is inclined with respect to the vertical plane AA in the vertical direction relative to the longitudinal direction of the nozzle head 85. The vertical plane AA is the plane that forms the cross-section of the nozzle head 85. That is, when the nozzle head 85 is in a horizontal position, the upper end of the rear portion 85g protrudes further back (towards the second cylindrical portion 83) than the lower end.

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

[0060] In this way, by tilting the nozzle head 85 downwards, the openings of the posterior wash nozzle 85b, the soft wash nozzle 85c, and the bidet wash nozzle 85d can be directed forward. Therefore, even if the nozzle unit 60 has a short extension distance into the toilet bowl 200, it can efficiently spray water towards the user's private parts.

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

[0062] As shown in Figures 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 that is inserted into the recess 83c.

[0063] The recess 83c extends from the front portion 83b of the second cylindrical portion 83 toward the rear (towards the first cylindrical portion 82). The recess 83c is provided between the respective flow paths 80a to 80e within the second cylindrical portion 83. The protrusion 85i is located between the respective flow paths 80a to 80e of the nozzle head 85 and protrudes toward the rear from the rear portion 85g. The protrusion 85i is designed to fit, for example, into the recess 83c.

[0064] When fixing the nozzle head 85 to the second cylindrical portion 83, the convex portion 85i is pressed into the concave portion 83c to position the second cylindrical portion 83 and the nozzle head 85. In this state, the front portion 83b of the second cylindrical portion 83 and the rear portion 85g of the nozzle head 85 are fixed together to integrate the second cylindrical portion 83 and the nozzle head 85.

[0065] The positioning section 87 prevents the flow paths 80a to 80e of the second cylindrical section 83 from being misconnected to the flow paths 80a to 80e of the nozzle head 85. Furthermore, since the recess 83c extends longitudinally from the front surface 83b, which is a surface perpendicular to the longitudinal direction, sufficient fitting clearance can be ensured. Note that the positioning section 87 may have the recess 83c and the protrusion 85i in reverse. That is, the positioning section 87 may have a protrusion provided on the second cylindrical section 83 and a recess provided on the nozzle head 85 that is 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 Figure 4, the nozzle cover 90 is curved so as to be convex upward. As shown in Figures 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 necessarily have to be bent relative to the first cylindrical portion 82.

[0067] The nozzle cover 90 has holes 90a that communicate with the posterior wash outlet 85b, the soft wash outlet 85c, and the bidet wash outlet 85d, respectively, and notches 90b that expose the first nozzle 85e and the second nozzle 85f. The front portion of the nozzle cover 90 extends parallel to the tip surface 85h, in line with the tip surface 85h of the nozzle head 85.

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

[0069] In the first embodiment, the case in which the front portion 83b of the second cylindrical portion 83 is perpendicular to the longitudinal direction of the second cylindrical portion 83 was described as an example. However, the embodiments of the present invention are not limited to this, and for example, as in the second embodiment shown in Figure 9, the rear portion 85g of the nozzle head 85 may be perpendicular to the longitudinal direction of the nozzle head 85. In this case, the front portion 83b of the cylindrical portion 81 (second cylindrical portion 83) is inclined from the vertical plane BB in the vertical 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 position, the upper end of the front portion 83b protrudes forward (towards the nozzle head 85) than the lower end. In other words, the angle β that the front portion 83b of the second cylindrical portion 83 makes with the outer surface 83a is less than 90°. In such an embodiment, the nozzle head 85 may be bent and extended from the front portion 83b of the cylindrical portion 81.

[0070] Next, a nozzle unit according to the third embodiment will be described with reference to Figure 10. Figure 10 is a side view showing the cylindrical section and nozzle head of the sanitary cleaning device according to the third embodiment. In the first embodiment, the case in which the front portion 83b of the second cylindrical portion 83 is perpendicular to the longitudinal direction of the second cylindrical portion 83 was described as an example. In the second embodiment, the case in which the rear portion 85g of the nozzle head 85 is perpendicular to the longitudinal direction of the nozzle head 85 was described as an example. However, the embodiments of the present invention are not limited to these, and for example, as in the third embodiment shown in Figure 10, the front portion 83b of the second cylindrical portion 83 is not perpendicular to the longitudinal direction of the second cylindrical portion 83, and the rear portion 85g of the nozzle head 85 is not perpendicular to the longitudinal direction of the nozzle head 85.

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

[0072] The embodiment may include the following configurations. (Composition 1) Casing and, A nozzle unit that moves back and forth along an arc-shaped trajectory between the casing and the toilet bowl, Equipped with, The nozzle unit described above is The cylindrical part, A nozzle head connected to the front part of the cylindrical section, A nozzle cover that covers the cylindrical portion and the nozzle head and is curved so as to be convex upward, It has, The sanitary cleaning device is characterized in that the nozzle head extends in a bent manner from the front portion of the cylindrical part. (Configuration 2) The sanitary cleaning device according to configuration 1, characterized in that the front portion of the cylindrical portion is perpendicular to the longitudinal direction of the cylindrical portion. (Composition 3) The nozzle head is The rear portion connected to the front portion of the cylindrical portion, The rear surface portion and the front surface portion facing each other in the longitudinal direction of the nozzle head, It has, The sanitary cleaning device according to configuration 1 or 2, characterized in that the front 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. (Composition 4) A sanitary cleaning device according to any one of configurations 1 to 3, characterized in that the cylindrical portion and the nozzle head each have a positioning portion for determining the position of the nozzle head relative to the cylindrical portion. (Composition 5) The positioning part is, The recess provided in the cylindrical portion, A convex portion provided on the nozzle head and inserted into the recess, A sanitary cleaning device according to configuration 4, characterized by having the following features.

[0073] Embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. Modifications made by those skilled in the art to the above-described embodiments are also included within the scope of the present invention, as long as they retain the features of the present invention. For example, the shape, dimensions, material, and arrangement of each element of a sanitary cleaning 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 feasible, and combinations thereof are also included within the scope of the present invention, as long as they retain the features of the present invention. [Explanation of Symbols]

[0074] 10 Casing 11 Case Plate 12 Case Covers 12a Lid 20 toilet seats 25 Toilet lid 30 Local cleaning device 40 Support part 44 Nozzle cleaning section 50 Nozzle Motors 60 Nozzle Units 70-stroke unit 71 Flow rate adjustment section 72 Flow path switching section 73 cases 75 Surface cleaning channel 80 Nozzle Body 80a Rear wash channel 80b Soft cleaning channel 80c bidet flushing channel 80d First bowl ejection channel 80e Second bowl ejection channel 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 Washlet nozzle 85c Soft-cleaning spout 85d Bidet Washing Outlet 85e 1st spout 85f 2nd spout 85g rear part 85h Tip surface part 85i protrusion 87 Positioning section 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 Electrolytic Cell Unit 127 Pressure Modulation Unit 130 Control Unit 135 Power supply circuit 140 Operation section 150 Seat detection sensors 200 toilets 300 toilet equipment 500 Water source

Claims

1. Casing and, A nozzle unit that moves back and forth along an arc-shaped trajectory between the casing and the toilet bowl, Equipped with, The nozzle unit described above is The cylindrical part, A nozzle head connected to the front part of the cylindrical section, A nozzle cover that covers the cylindrical portion and the nozzle head and is curved so as to be convex upward, It has, The nozzle head extends in a bent manner from the front portion of the cylindrical part, A sanitary cleaning device characterized in that the cylindrical portion, the nozzle head, and the nozzle cover move back and forth as a single unit.

2. The sanitary cleaning device according to claim 1, characterized in that the front portion of the cylindrical portion is perpendicular to the longitudinal direction of the cylindrical portion.

3. The nozzle head is The rear portion connected to the front portion of the cylindrical portion, The rear surface portion and the front surface portion facing each other in the longitudinal direction of the nozzle head, It has, The sanitary cleaning device according to claim 1, characterized in that the front 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 cleaning device according to any one of claims 1 to 3, characterized in that the cylindrical portion and the nozzle head have positioning portions for determining the position of the nozzle head relative to the cylindrical portion.

5. Casing and A nozzle unit that moves back and forth along an arc-shaped trajectory between the casing and the toilet bowl, Equipped with, The nozzle unit described above is The cylindrical part, A nozzle head connected to the front part of the cylindrical section, A nozzle cover that covers the cylindrical portion and the nozzle head and is curved so as to be convex upward, It has, The nozzle head extends in a bent manner from the front portion of the cylindrical part, The cylindrical portion and the nozzle head each have a positioning portion for determining the position of the nozzle head relative to the cylindrical portion. The positioning part is, The recess provided in the cylindrical portion, A convex portion provided on the nozzle head and inserted into the recess, A sanitary cleaning device characterized by having the following features.

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