JP5467528B2 - Sanitary washing device - Google Patents

Description

  Aspects of the present invention generally relate to a sanitary washing apparatus, and more specifically, to a sanitary washing apparatus for washing a user's “butt” or the like seated on a Western-style seated toilet with water.

A cleaning nozzle that cleans the body of a user sitting on the toilet seat, such as a “buttock”, has a cleaning water on the body in a state where at least a part is exposed (advanced) from a casing to which a predetermined functional component such as the cleaning nozzle is attached. Inject. Therefore, there is a possibility that dirty water and filth may adhere to the cleaning nozzle.
Here, the request | requirement with respect to the cleanliness of the sanitary washing apparatus is high. Among them, the demand for cleanliness of the cleaning nozzle tends to increase. On the other hand, there is a sanitary washing device for washing away and removing sewage and dirt attached to the washing nozzle before and after body washing. Thereby, the washing nozzle is kept clean.

  For example, there is a sanitary washing apparatus including a cleaning member having a first discharge port that discharges cleaning liquid from above to a nozzle and a second discharge port that discharges cleaning liquid from the side to the nozzle (Patent Document 1). ). According to the sanitary washing device described in Patent Document 1, the dirt attached to the upper surface of the nozzle by local cleaning is removed by the cleaning liquid discharged downward from the first discharge port, and the dirt attached to the side surface of the nozzle is The liquid is removed by the cleaning liquid discharged sideways from the second discharge port.

  In addition, there is a human body local cleaning device provided with a nozzle cleaning unit having a cleaning water spray unit having a plurality of spray ports for spraying cleaning water from above the cleaning nozzle at the standby position toward the upper surface and the side surface of the cleaning nozzle. (Patent Document 2). According to the human body local cleaning apparatus described in Patent Document 2, the cleaning water is sprayed and strongly applied to the upper surface and the side surface of the cleaning nozzle from a plurality of injection ports, so that the filth is splashed and scraped off. It can be cleaned and the filth can be washed away reliably.

  Furthermore, there is a toilet seat device provided with a cleaning nozzle for a human body cleaning nozzle (Patent Document 3). According to the toilet seat device described in Patent Document 3, the human body washing nozzle can be cleaned.

  However, in the apparatuses described in Patent Documents 1 to 3, since water discharged or sprayed on the upper surface or side surface of the cleaning nozzle flows along the surface of the cleaning nozzle, the point of cleaning the front surface of the cleaning nozzle is improved. There is room.

JP 2010-1227059 A JP 2009-7849 A JP 2008-266879 A

  The present invention has been made based on the recognition of such a problem, and an object of the present invention is to provide a sanitary washing apparatus that can keep the entire washing nozzle clean.

  A first invention is provided with a casing, a cleaning nozzle which is provided so as to be able to advance and retreat from the casing, and which cleans a user's body by injecting water from an outlet, and the cleaning nozzle is advanced and retracted, and the cleaning nozzle is A nozzle drive unit that switches between a state in the operating position advanced from the casing and a state in which the cleaning nozzle is in a standby position retracted into the casing, and nozzle cleaning means for cleaning the cleaning nozzle, The cleaning water discharged from the nozzle cleaning means is directly discharged onto the outer peripheral surface of the cleaning nozzle, and at least a part of the cleaning water discharged from the nozzle cleaning means is directly discharged onto the tip surface of the cleaning nozzle. This is a sanitary washing device.

  According to this sanitary washing apparatus, at least a part of the washing water discharged from the nozzle cleaning means is directly discharged onto the tip surface of the cleaning nozzle. Thereby, not only the outer peripheral surface of the cleaning nozzle but also the tip surface can be reliably cleaned. For this reason, it is possible to suppress the adhesion of filth over the entire cleaning nozzle, and it is possible to maintain the entire cleaning nozzle more cleanly.

  Further, the second invention is characterized in that, in the first invention, the cleaning water discharged from the nozzle cleaning means is discharged directly to the tip surface when the cleaning nozzle is in the standby position. It is a sanitary washing device.

  According to this sanitary cleaning device, when the cleaning nozzle is in the standby position, water discharged from the nozzle cleaning means is directly discharged to the front end surface of the cleaning nozzle, thereby suppressing an increase in the size of the sanitary cleaning device. be able to. That is, when the cleaning nozzle is in the operating position and water is to be directly discharged to the front end surface of the cleaning nozzle, it is necessary to discharge water from the front side of the front end surface of the cleaning nozzle in the operating position. Therefore, the sanitary washing device may be increased in size. On the other hand, in this sanitary washing device, when the washing nozzle is in the standby position, water is directly discharged to the front end surface of the washing nozzle, so that an increase in the size of the sanitary washing device can be suppressed.

  According to a third aspect of the present invention, in the first or second aspect, the cleaning water discharged from the nozzle cleaning means is directly discharged onto the outer peripheral surface during at least one of the advancement and retreat of the cleaning nozzle. This is a sanitary washing device.

  According to this sanitary washing device, while the washing nozzle is in the standby position, the washing water is directly discharged to the front end surface of the washing nozzle, while the washing water is washed when at least one of the advancement and withdrawal of the washing nozzle is performed. Water is discharged directly to the outer peripheral surface of the nozzle. The entire cleaning nozzle can be reliably cleaned. Also, since the outer peripheral surface of the cleaning nozzle is cleaned during at least one of the advancement and retraction of the cleaning nozzle, the cleaning time is shorter than when the cleaning nozzle starts cleaning after the cleaning nozzle moves back to the standby position. can do.

  According to a fourth aspect of the present invention, in the second or third aspect, the cleaning water discharged from the nozzle cleaning means to the tip surface when the cleaning nozzle is in the standby position is the advance of the cleaning nozzle. The sanitary washing device is characterized in that water is discharged directly onto the outer peripheral surface during at least one of the operations of retreating and retreating.

  According to this sanitary washing device, the washing part can be changed according to the position of the washing nozzle without changing the water discharge direction of the water discharged from the nozzle cleaning means. Therefore, the entire cleaning nozzle can be cleaned by the nozzle cleaning means having a more simplified structure.

  The fifth invention is the invention according to any one of the first to fourth inventions, wherein the cleaning water discharged from the nozzle cleaning means is directly applied to the outer peripheral surface of the cleaning nozzle during the backward movement of the cleaning nozzle. The sanitary washing apparatus is characterized in that after the water is discharged and the cleaning nozzle moves back to the standby position, water is directly discharged to the front end surface of the cleaning nozzle.

  According to this sanitary washing apparatus, the washing nozzle moves to the standby position while washing the outer peripheral surface when retreating, and thereafter the tip surface is washed. Therefore, even if dirt on the outer peripheral surface of the cleaning nozzle flows and adheres to the tip surface, the dirt attached to the tip surface is washed away at the standby position. Thereby, the whole washing nozzle can be washed reliably.

  Further, a sixth invention is the invention according to any one of the first to fifth inventions, wherein the nozzle cleaning means has a water discharge hole for discharging the cleaning water toward the cleaning nozzle, and the cleaning nozzle is When in the standby position, the tip surface is located on the rear side of the front surface of the nozzle cleaning means, and the direction of the cleaning water discharged from the water discharge hole is obliquely rearward when viewed from the tip surface. This is a sanitary washing device.

  According to this sanitary washing device, in the state where the front end surface of the cleaning nozzle is located behind the front surface of the nozzle cleaning means, the wash water is discharged from the water discharge holes obliquely rearward when viewed from the front end surface. Therefore, the cleaning water can be discharged directly to the front end surface of the cleaning nozzle with a simpler structure.

  Moreover, 7th invention is a sanitary washing apparatus characterized by the said water discharge hole being formed in the front side rather than the front end surface of the said washing nozzle in the said standby position in 6th invention.

  According to this sanitary washing device, the water discharge hole is formed in front of the front end surface of the washing nozzle in the standby position. That is, the water discharge hole is formed on the relatively front side of the nozzle cleaning means. Therefore, the cleaning water can be discharged directly to the front end surface of the cleaning nozzle without setting the standby position of the cleaning nozzle to the relatively rear side when viewed from the toilet. Thereby, it can suppress that a sanitary washing apparatus enlarges.

  The eighth invention is the sixth or seventh invention, wherein the nozzle cleaning means is formed on the rear side of the water discharge hole and connected to a supply unit for supplying the cleaning water; and The sanitary washing apparatus further includes an internal flow path formed inside the nozzle cleaning means and communicating the connecting portion and the water discharge hole.

  According to this sanitary washing apparatus, the internal flow path is formed inside the nozzle washing means, so that the connecting portion can be formed on the relatively rear side of the nozzle washing means. Therefore, a water supply part can be arrange | positioned in the comparatively back side of a nozzle washing | cleaning means. Therefore, the arrangement space of the water supply unit can be secured more widely. Thereby, interference with a casing and a water supply part can be avoided, and it can suppress that a sanitary washing apparatus enlarges.

  According to the aspect of the present invention, there is provided a sanitary washing device that can keep the entire washing nozzle more clean.

It is a perspective schematic diagram showing the toilet apparatus provided with the sanitary washing apparatus concerning embodiment of this invention. It is a perspective schematic diagram showing the nozzle unit of this embodiment. It is a cross-sectional schematic diagram showing the washing nozzle in a standby state. It is a cross-sectional schematic diagram showing the washing nozzle in a standby state. It is a cross-sectional schematic diagram showing the nozzle cleaning chamber of a comparative example. It is a cross-sectional schematic diagram showing the nozzle cleaning chamber of this embodiment. It is a perspective schematic diagram showing the nozzle cleaning chamber of this embodiment. It is a cross-sectional schematic diagram showing the washing nozzle and nozzle washing chamber of other embodiment. It is a cross-sectional schematic diagram showing the washing nozzle and nozzle washing chamber of other embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic perspective view showing a toilet apparatus provided with a sanitary washing device according to an embodiment of the present invention.

  The toilet device shown in FIG. 1 includes a Western-style seat toilet (hereinafter simply referred to as “toilet” for convenience of explanation) 800 and a sanitary washing device 100 provided thereon. The sanitary washing device 100 includes a casing 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are pivotally supported with respect to the casing 400 so as to be freely opened and closed.

  Inside the casing 400 is incorporated a body washing function unit that implements washing of a user who sits on the toilet seat 200 such as a “butt”. Further, for example, the casing 400 is provided with a seating detection sensor 404 that detects that the user has sat on the toilet seat 200. When the seating detection sensor 404 detects a user sitting on the toilet seat 200, when the user operates an operation unit (not shown) such as a remote controller, the cleaning nozzle 473 can be advanced into the bowl 801 of the toilet 800. it can. In the sanitary washing apparatus 100 shown in FIG. 1, the washing nozzle 473 has entered the bowl 801.

  One or a plurality of jet outlets 474 are provided at the tip of the cleaning nozzle 473. The washing nozzle 473 can wash water such as a “buttock” of a user sitting on the toilet seat 200 by jetting water from a jet port 474 provided at the tip thereof.

FIG. 2 is a schematic perspective view showing the nozzle unit of the present embodiment.
The nozzle unit 470 of this embodiment is built in the casing 400. The nozzle unit 470 includes a mounting base 475 as a base, a cleaning nozzle 473 supported by the mounting base 475, a nozzle driving unit 476 that moves the cleaning nozzle 473, and a nozzle cleaning chamber (nozzle cleaning) that cleans the cleaning nozzle 473. Means) 478. The cleaning nozzle 473 is attached to the mounting base 475 by a driving force transmitted from the nozzle driving unit 476 via a transmission member 477 such as a belt as indicated by an arrow A shown in FIGS. 2 (a) and 2 (b). On the other hand, it is slidably provided. That is, the cleaning nozzle 473 can move linearly in the axial direction (advancing / retreating direction) of the cleaning nozzle 473 itself. The cleaning nozzle 473 can be moved forward and backward from the casing 400 and the mounting base 475.

  The nozzle driving unit 476 can switch between a state where the cleaning nozzle 473 is in an operating position where the cleaning nozzle 473 has advanced into the bowl 801 of the toilet bowl 800 from the casing 400 and a state where the cleaning nozzle 473 is in a standby position where the cleaning nozzle 473 is retracted into the casing 400. it can. When the cleaning nozzle 473 is in the standby position, the front end surface 473b of the cleaning nozzle 473 is positioned on the rear side of the front surface 478a of the nozzle cleaning chamber 478 as shown in FIGS. 2 (a) and 2 (b). ing. That is, in the state where the cleaning nozzle 473 is stored in the casing 400 and is in the standby position, the front end surface 473b of the cleaning nozzle 473 is substantially stored in the nozzle cleaning chamber 478. Therefore, when the cleaning nozzle 473 is in the standby position, the nozzle cleaning chamber 478 cleans the front end surface 473b of the cleaning nozzle 473 by discharging water from a water discharge hole 478d (see FIG. 3) provided therein. Can do. Further, the nozzle cleaning chamber 478 can clean the outer peripheral surface (body) 473a of the cleaning nozzle 473 by discharging water from the water discharge hole 478d when the cleaning nozzle 473 advances and retreats.

3 and 4 are schematic sectional views showing the cleaning nozzle in the standby state.
3 is a schematic cross-sectional view taken along the line BB shown in FIG. 2, and FIG. 4 is a schematic cross-sectional view taken along the line CC shown in FIG. FIG. 3 shows a state in which the nozzle unit 470 is built in the casing 400.

  As shown in FIG. 3, the nozzle cleaning chamber 478 is fixed to the mounting base 475 and is provided inside the casing 400. As shown in FIG. 4, the nozzle cleaning chamber 478 is provided with a connecting portion 478 b that protrudes toward the outside of the nozzle cleaning chamber 478. A water supply unit 450 that supplies water for cleaning the cleaning nozzle 473 is connected to the connection unit 478b.

  Inside the nozzle cleaning chamber 478, as shown in FIG. 3, an internal flow path 478c that guides water supplied through the inside of the water supply part 450 and the connection part 478b is provided. The internal flow path 478c is provided from the connection part 478b toward the front side. A water discharge hole 478d for discharging water toward the cleaning nozzle 473 is formed at one end of the internal flow path 478c. That is, the water discharge hole 478d is formed in the upper part of the nozzle cleaning chamber 478 and in front of the connection part 478b. The internal flow path 478c allows the connection part 478b and the water discharge hole 478d to communicate with each other, and guides the water supplied from the water supply part 450 to the water discharge hole 478d through the connection part 478b.

  The water that has passed through the internal flow path 478c is discharged from the water discharge hole 478d in an oblique direction as viewed from the front end surface 473b of the cleaning nozzle 473. In other words, the water that has passed through the internal flow path 478c is discharged from the water discharge hole 478d in an oblique direction with respect to the normal line 473c of the tip surface 473b of the cleaning nozzle 473. And the water discharged from the water discharge hole 478d goes to the rear side as shown by the arrow D shown in FIG. Here, as shown in FIG. 3, when the cleaning nozzle 473 is in the standby position, the front end surface 473b of the cleaning nozzle 473 is positioned rearward of the water discharge hole 478d. Therefore, when the cleaning nozzle 473 is in the standby position, at least a part of the water discharged from the water discharge hole 478d is directly discharged to the distal end surface 473b of the cleaning nozzle 473.

  In the specification of the present application, “direct water discharge” means that water discharged into the space from a cleaning means such as the nozzle cleaning chamber 478 is directly applied to an object such as the cleaning nozzle 473 without any obstacle from a certain object. It means to land on the water.

  According to this, the front end surface 473b of the cleaning nozzle 473 can be reliably cleaned. Therefore, the front end surface 473b of the cleaning nozzle 473 can be maintained more cleanly. Further, when the cleaning nozzle 473 is in the standby position, the water discharged from the water discharge hole 478d is directly discharged to the distal end surface 473b of the cleaning nozzle 473, so that the sanitary cleaning device 100 can be prevented from being enlarged. it can. That is, when water is directly discharged to the tip surface 473b of the cleaning nozzle 473 when the cleaning nozzle 473 is in the operating position (advance position), the front side of the tip surface 473b of the cleaning nozzle 473 in the operating position is from the front side. It is necessary to discharge water. Therefore, the sanitary washing device 100 may be increased in size. On the other hand, in this embodiment, when the cleaning nozzle 473 is in the standby position, water is directly discharged to the tip surface 473b of the cleaning nozzle 473, so that the sanitary cleaning device 100 can be prevented from being enlarged. .

In addition, in the state where the front end surface 473b of the cleaning nozzle 473 is located on the rear side of the water discharge hole 478d, water is discharged from the water discharge hole 478d toward the rear side, so that the front end surface of the cleaning nozzle 473 has a simpler structure. Water can be discharged directly to 473b.
Furthermore, since the water discharge hole 478d is provided on the relatively front side of the nozzle cleaning chamber 478, the front end surface 473b of the cleaning nozzle 473 can be obtained without setting the standby position of the cleaning nozzle 473 on the relatively rear side when viewed from the toilet 800. Water can be discharged directly. Therefore, it can suppress that the sanitary washing apparatus 100 enlarges.
Furthermore, the internal flow path 478 c is provided inside the nozzle cleaning chamber 478, so that the connecting portion 478 b can be provided on the relatively rear side of the nozzle cleaning chamber 478. Therefore, the water supply unit 450 can be disposed on the relatively rear side of the nozzle cleaning chamber 478. Therefore, it is possible to secure a wider space for the water supply unit 450. Thereby, interference with the casing 400 and the water supply part 450 can be avoided, and it can suppress that the sanitary washing apparatus 100 enlarges.

FIG. 5 is a schematic cross-sectional view illustrating a nozzle cleaning chamber of a comparative example.
5A is a schematic cross-sectional view showing a case where the front end surface 473b of the cleaning nozzle 473 and the front surface 578a of the nozzle cleaning chamber 578 are on the same plane, and FIG. It is a cross-sectional schematic diagram showing the case where the front end surface 473b exists in the back side rather than the water discharge hole 578d. 5A and 5B correspond to schematic cross-sectional views taken along the section C-C shown in FIG.

  Inside the nozzle cleaning chamber 578 of this comparative example, no internal flow path is provided like the nozzle cleaning chamber 478 of this embodiment. One end of the connecting portion 578 b functions as a water discharge hole 578 d that discharges water toward the cleaning nozzle 473. The water discharge hole 578d is not formed in front of the connection portion 578b. And the water which passed the connection part 578b is discharged from the water discharge hole 478d in parallel with the front end surface 473b of the washing nozzle 473 like arrow E shown to Fig.5 (a) and FIG.5 (b). In other words, the water that has passed through the connection portion 578b is discharged from the water discharge hole 478d in a direction perpendicular to the normal line 473c of the tip surface 473b of the cleaning nozzle 473.

  In the comparative example shown in FIG. 5A, the front end surface 473b of the cleaning nozzle 473 and the front surface 578a of the nozzle cleaning chamber 578 are on the same plane when the cleaning nozzle 473 is in the standby position or when it advances and retreats. The water discharged from the water discharge hole 478d is not directly discharged to the tip surface 473b of the cleaning nozzle 473, but is directly discharged to the outer peripheral surface 473a of the cleaning nozzle 473. Then, the water discharged directly to the outer peripheral surface 473a of the cleaning nozzle 473 flows through the outer peripheral surface 473a of the cleaning nozzle 473 and reaches the front end surface 473b. However, there is room for improvement in that the tip surface 473b of the cleaning nozzle 473 is reliably cleaned and kept clean.

  In the comparative example shown in FIG. 5B, when the cleaning nozzle 473 is in the standby position, the front end surface 473b of the cleaning nozzle 473 is positioned on the rear side of the water discharge hole 578d. The water discharged from the water discharge hole 478d is in parallel with the front end surface 473b of the cleaning nozzle 473, and thus comes into contact with the front end surface 473b of the cleaning nozzle 473. However, there is room for improvement in that the front end surface 473b of the cleaning nozzle 473 is actively cleaned and kept clean.

  On the other hand, in this embodiment, the water that has passed through the internal flow path 478c is discharged from the water discharge hole 478d in an oblique direction as viewed from the front end surface 473b of the cleaning nozzle 473. In other words, the water that has passed through the internal flow path 478c is discharged from the water discharge hole 478d in an oblique direction with respect to the normal line 473c of the tip surface 473b of the cleaning nozzle 473. Then, at least a part of the water discharged from the water discharge hole 478d is directly discharged to the front end surface 473b of the cleaning nozzle 473 at the standby position. Thereby, the front end surface 473b of the cleaning nozzle 473 can be reliably cleaned. Therefore, the front end surface 473b of the cleaning nozzle 473 can be maintained more cleanly.

FIG. 6 is a schematic cross-sectional view showing the nozzle cleaning chamber of the present embodiment.
FIG. 7 is a schematic perspective view showing the nozzle cleaning chamber of the present embodiment.
6A is a schematic cross-sectional view showing a state when the cleaning nozzle 473 is advanced and retracted, and FIG. 6B is a schematic cross-sectional view showing a state when the cleaning nozzle 473 is in the standby position. FIG. 6 and 7 are schematic cross-sectional views taken along the cutting plane BB shown in FIG.

As described above with reference to FIGS. 3 and 4, the water that has passed through the internal flow path 478 c is discharged from the water discharge hole 478 d toward the cleaning nozzle 473. Therefore, as shown in FIG. 6A and FIG. 7, water is discharged from the water discharge hole 478 d at least when the cleaning nozzle 473 moves into the bowl 801 of the toilet bowl 800 and when it moves back into the casing 400. At least a part of the water is discharged directly to the outer peripheral surface 473a of the cleaning nozzle 473.
According to this, the outer peripheral surface 473a of the cleaning nozzle 473 can be reliably cleaned. Therefore, the outer peripheral surface 473a of the cleaning nozzle 473 can be maintained more cleanly.

Further, when the cleaning nozzle 473 is retracted to the standby position, as shown in FIG. 6B, at least a part of the water discharged from the water discharge hole 478d is directly discharged to the tip surface 473b of the cleaning nozzle 473.
According to this, the front end surface 473b of the cleaning nozzle 473 can be reliably cleaned. Therefore, the front end surface 473b of the cleaning nozzle 473 can be maintained more cleanly.

Moreover, since the water discharged from the water discharge hole 478d is directly discharged to the outer peripheral surface 473a and the front end surface 473b of the cleaning nozzle 473, the entire cleaning nozzle 473 can be reliably cleaned.
Further, when the cleaning nozzle 473 advances and retreats, water is directly discharged to the outer peripheral surface 473a of the cleaning nozzle 473. Therefore, the cleaning time is longer than when the cleaning nozzle 473 starts cleaning after the cleaning nozzle 473 has moved back to the standby position. Can be shortened.
Furthermore, the cleaning part can be changed according to the position of the cleaning nozzle 473 without changing the water discharge direction (arrow D) of water discharged from the water discharge hole 478d. Therefore, the entire cleaning nozzle 473 can be cleaned by one water discharge hole 478d. Thereby, the structure of the nozzle cleaning chamber 478 can be further simplified.
Furthermore, the cleaning nozzle 473 moves to the standby position while cleaning the outer peripheral surface 473a when retreating, and thereafter the tip surface 473b is cleaned. Therefore, even if dirt on the outer peripheral surface 473a of the cleaning nozzle 473 flows and adheres to the tip surface 473b, the dirt attached to the tip surface 473b is washed away at the standby position. Thereby, the whole washing nozzle 473 can be washed reliably.

Next, another embodiment of the present invention will be described.
8 and 9 are schematic cross-sectional views showing a cleaning nozzle and a nozzle cleaning chamber according to another embodiment.
8A is an enlarged schematic view in which the vicinity of the water discharge hole of the nozzle cleaning chamber 478 described above with reference to FIGS. 6 and 7 is enlarged, and FIG. 8B is a nozzle according to another embodiment. It is the expansion schematic diagram which expanded and looked at the water discharge hole vicinity of the cleaning chamber 488. 8 and 9 correspond to cross-sectional schematic views taken along the section plane BB shown in FIG.

  In the nozzle cleaning chamber 478 shown in FIG. 8A, water that has passed through the internal flow path 478c is discharged from the water discharge hole 478d in an oblique direction as viewed from the front end surface 473b of the cleaning nozzle 473. In other words, the water that has passed through the internal flow path 478c is discharged from the water discharge hole 478d in an oblique direction with respect to the normal line 473c of the tip surface 473b of the cleaning nozzle 473. And the water discharged from the water discharge hole 478d goes to the rear side as shown by the arrow D shown in FIG. This is as described above with reference to FIGS.

  On the other hand, in this embodiment, the front end surface 483b of the cleaning nozzle 483 is inclined in a direction to look up the water discharge hole 488d as shown in FIG. In other words, in the schematic cross-sectional view shown in FIG. 9, the upper end 483e of the tip end surface 483b is formed at a position retracted from the lower end 483f of the tip end surface 483b. When the cleaning nozzle 483 is in the standby position, the tip surface 483b of the cleaning nozzle 483 is positioned on the rear side of the water discharge hole 488d.

  In the nozzle cleaning chamber 488 shown in FIG. 8A and FIG. 9, the water that has passed through the internal flow path 488c through the connection portion 488b is discharged from the water discharge hole 488d in an oblique direction as viewed from the tip surface 483b of the cleaning nozzle 483. Is done. In other words, the water that has passed through the internal flow path 488c via the connection portion 488b is discharged from the water discharge hole 488d in an oblique direction with respect to the normal line 483c of the tip surface 483b of the cleaning nozzle 483. That is, the water discharged from the water discharge hole 488d is directed in the vertical direction with respect to the shaft 483d of the cleaning nozzle 483, as indicated by the arrow F shown in FIG. 8B and FIG. Other structures are the same as the structures of the cleaning nozzle 473 and the nozzle cleaning chamber 478 described above with reference to FIGS.

  According to the present embodiment, since the front end surface 483b of the cleaning nozzle 483 is inclined in the direction to look up the water discharge hole 488d, the water discharged from the water discharge hole 488d when the cleaning nozzle 483 is in the standby position and at the time of advance / retreat. At least a part of the water is directly discharged to the tip surface 483b of the cleaning nozzle 483. Thereby, the front end surface 483b of the cleaning nozzle 483 can be reliably cleaned. Therefore, the front end surface 483b of the cleaning nozzle 483 can be maintained more cleanly.

  As described above, according to the embodiment of the present invention, at least a part of the water discharged from the water discharge hole 478d of the nozzle cleaning chamber 478 is directly discharged to the tip surface 473b and the outer peripheral surface 473a of the cleaning nozzle 473. The Therefore, the front end surface 473b and the outer peripheral surface 473a of the cleaning nozzle 473 can be reliably cleaned. Therefore, the entire cleaning nozzle 473 can be kept clean.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, and the like of each element provided in the nozzle cleaning chamber 478 and the installation form of the internal flow path 478c and the water discharge hole 478d are not limited to those illustrated, but may be changed as appropriate. it can.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  100 sanitary washing device, 200 toilet seat, 300 toilet lid, 400 casing, 404 seating detection sensor, 450 water supply unit, 470 nozzle unit, 473 washing nozzle, 473a outer peripheral surface, 473b tip surface, 473c normal line, 474 spout, 475 mounting Stand, 476 nozzle drive unit, 477 transmission member, 478 nozzle cleaning chamber, 478a front surface, 478b connection portion, 478c internal flow path, 478d water discharge hole, 483 cleaning nozzle, 483b tip surface, 483c normal line, 483d axis, 483e upper end, 483f Lower end, 488 nozzle cleaning chamber, 488b connection portion, 488c internal flow path, 488d water discharge hole, 578 nozzle cleaning chamber, 578a front surface, 578b connection portion, 578d water discharge hole, 800 Western-style toilet bowl, 801 bowl

Claims (8)

A casing,
A cleaning nozzle provided so as to freely advance and retreat from the casing, and for cleaning the user's body by injecting water from an outlet;
A nozzle drive unit that switches between a state in which the cleaning nozzle is advanced and retracted, and the cleaning nozzle is in an operating position advanced from the casing, and a state in which the cleaning nozzle is in a standby position retracted into the casing;
Nozzle cleaning means for cleaning the cleaning nozzle;
With
The cleaning water discharged from the nozzle cleaning means is directly discharged onto the outer peripheral surface of the cleaning nozzle, and at least a part of the cleaning water discharged from the nozzle cleaning means is directly discharged onto the tip surface of the cleaning nozzle. Sanitary washing device characterized by that.   The sanitary washing device according to claim 1, wherein the washing water discharged from the nozzle cleaning means is directly discharged onto the tip surface when the cleaning nozzle is in the standby position.   The sanitary washing device according to claim 1 or 2, wherein the washing water discharged from the nozzle cleaning means is directly discharged onto the outer peripheral surface during at least one of the advance and retreat operations of the cleaning nozzle. .   The cleaning water discharged from the nozzle cleaning means to the tip surface when the cleaning nozzle is in the standby position is directly discharged onto the outer peripheral surface during at least one of the advancement and retraction of the cleaning nozzle. The sanitary washing apparatus according to claim 2 or 3, wherein   The cleaning water discharged from the nozzle cleaning means is directly discharged onto the outer peripheral surface of the cleaning nozzle during the backward operation of the cleaning nozzle, and after the cleaning nozzle has moved back to the standby position, the front end surface of the cleaning nozzle The sanitary washing device according to any one of claims 1 to 4, wherein the water is directly discharged. The nozzle cleaning means has a water discharge hole for discharging the cleaning water toward the cleaning nozzle,
When the cleaning nozzle is in the standby position, the tip surface is located on the rear side of the front surface of the nozzle cleaning means, and the direction of the cleaning water discharged from the water discharge hole is obliquely rearward as viewed from the tip surface. The sanitary washing device according to any one of claims 1 to 5, wherein   The sanitary washing device according to claim 6, wherein the water discharge hole is formed in front of a front end surface of the washing nozzle in the standby position.   The nozzle cleaning means includes a connection portion formed on the rear side of the water discharge hole and connected to a supply portion for supplying the cleaning water, and the connection portion formed in the nozzle cleaning means and the water discharge hole. The sanitary washing device according to claim 6 or 7, further comprising an internal flow path for communication.

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