WO2009107807A1

WO2009107807A1 - Toilet device

Info

Publication number: WO2009107807A1
Application number: PCT/JP2009/053758
Authority: WO
Inventors: 慎司岡野; 智明末次; 実松井; 利行伊藤; 理典柳瀬; 康一郎檜皮; 智史大西; 展威作本; 慎一高祖
Original assignee: Toto株式会社
Priority date: 2008-02-29
Filing date: 2009-02-27
Publication date: 2009-09-03
Also published as: EP2261428B1; EP2261428A1; CN101960077B; EP2261428A4; CN101960077A

Abstract

Provided is a toilet device which is characterized by comprising a stool including a bowl, a recess formed in an upper face and communicating with the bowl, and a communicating portion for affording communications between the bowl and the recess. The toilet device further comprises a casing disposed over the stool, a seat hinged to open and close freely with respect to the casing, a washing nozzle arranged at least partially in the recess for moving into and out of the inside of the bowl through the communicating portion, and a shutter hinged turnably on the casing, for opening the communicating portion when the washing nozzle advances and for closing the communicating portion when the washing nozzle retracts. In order to improve the sitting comfortableness on the seat, the casing to be disposed over the stool can be small-sized while retaining the functions of a bidet unit.

Description

Toilet equipment

The aspect of the present invention generally relates to a toilet apparatus, and more specifically, to a toilet apparatus that can wash a user's “butt” or the like sitting on a Western-style sitting toilet with water.

The initial local cleaning equipment was not equipped with a hot-air drying function or deodorizing function, so the parts such as the cleaning nozzle, instantaneous heat exchanger, and control board were placed inside the functional casing. (For example, see Patent Document 1).

On the other hand, as local cleaning devices are gaining recognition, additional functions such as hot air drying and deodorizing functions are gradually added. At present, many functional components such as a cleaning nozzle, a hot air drying device, a deodorizing device, and a control board are arranged inside the casing (see, for example, Patent Document 2). Therefore, the casing is larger than the initial local cleaning device. The increase in the size of the casing leads to a reduction in the product function of the local cleaning device. An example of this is a decrease in comfort in the toilet seat.

This is due to the fact that the hinge position of the toilet seat becomes higher than that of the initial local cleaning device due to the increase in size of the casing. That is, the rear part of the seat surface of the toilet seat rises obliquely upward, and the rear part of the buttocks of the person sitting on the toilet seat comes into contact with the inclined part. The contact of foreign matter at the back of the buttock causes a sloppy sensation, and in the case of a heated toilet seat with a heater inside the toilet seat, it causes a cold sensation, which causes a decrease in sitting comfort on the toilet seat. ing.
JP-A-55-75034 JP 2001-152512 A

The aspect of the present invention has been made on the basis of recognition of such problems, and in order to improve the comfort of sitting on the toilet seat, the casing attached to the upper part of the toilet bowl is miniaturized while maintaining the function of the local cleaning device. The purpose is to do.

According to one aspect of the present invention, a toilet having a bowl, a recess formed on an upper surface and communicating with the bowl, and a communication portion communicating the bowl and the recess is provided on the toilet. A casing, a toilet seat that is pivotally supported with respect to the casing, a cleaning nozzle that is at least partially disposed in the recess, advances and retreats into and out of the bowl through the communication portion, and the casing. And a shutter that is pivotally supported with respect to the shaft, opens the communication part when the cleaning nozzle advances, and closes the communication part when the cleaning nozzle moves backward. Is provided.

FIG. 1 is a schematic perspective view showing a toilet apparatus according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the vicinity of the shutter according to the present embodiment. FIG. 3 is a schematic perspective view showing the toilet of this embodiment. FIG. 4 is a schematic perspective view showing a mounting structure between the shutter and the case plate. FIG. 5 is a schematic cross-sectional view of the vicinity of the shutter according to the present embodiment. FIG. 6 is a schematic cross-sectional view of the toilet device according to the present embodiment as viewed from the side. FIG. 7 is a schematic perspective view in which the vicinity of the shutter according to the present embodiment is enlarged and viewed. FIG. 8 is a schematic plan view of the vicinity of the shutter according to the present embodiment as viewed from the front. FIG. 9 is a schematic plan view of the vicinity of the shutter according to the present embodiment as viewed from above. FIG. 10 is a schematic cross-sectional view in which the protruding wall of the shutter according to the present embodiment is viewed in an enlarged manner. FIG. 11 is a schematic diagram showing a toilet apparatus according to another embodiment of the present invention. FIG. 12 is a schematic diagram illustrating a state in which the toilet seat and the toilet lid of the toilet apparatus according to the present embodiment are closed. FIG. 13 is a schematic perspective view showing the toilet of this embodiment. FIG. 14 is a schematic side view for explaining the hot air drying device of the present embodiment. FIG. 15 is a schematic cross-sectional view showing the inside of the casing in a state where the cleaning nozzle is housed. FIG. 16 is a schematic side view for explaining the deodorizing apparatus of the present embodiment. FIG. 17 is a schematic cross-sectional view showing the inside of the casing in a state where the cleaning nozzle has advanced. FIG. 18 is a schematic enlarged view in which a part of the inside of the casing of the present embodiment is viewed in an enlarged manner. FIG. 19 is a schematic view of a part of the inside of the casing according to the present embodiment as viewed from the front side. FIG. 20 is a schematic top view of a part of the inside of the casing according to the present embodiment as viewed from above. FIG. 21 is a schematic perspective view of the detailed structure in the casing and toilet according to the present embodiment as viewed from the left front. FIG. 22 is a schematic perspective view of the detailed structure in the casing and toilet according to the present embodiment as viewed from the right front. Fig.23 (a) is a perspective view which illustrates the internal structure of the sanitary washing apparatus of the toilet apparatus concerning further another embodiment of this invention, FIG.23 (b) is the water discharge nozzle arrange | positioned at the notch part. It is a schematic diagram showing. FIG. 24 is a block diagram showing a water channel configuration of the toilet apparatus according to the present embodiment. FIG. 25 is a schematic diagram showing the shape of a sub tank used in the toilet apparatus according to the present embodiment and the flow of water. FIG. 26 is a schematic diagram illustrating the water discharge nozzle 241 disposed in the notch 103 of the toilet apparatus according to the modification of the present embodiment. FIG. 27A is a schematic view showing the arrangement of the sub tank 680 on the lower casing 620 of a toilet apparatus according to another modification of the present embodiment, and FIG. 27B shows the flow of water flowing out of the sub tank 680. It is a schematic diagram shown. FIG. 28 is a schematic diagram showing the shape of the sub tank 680 used in the toilet apparatus according to another modification of the present embodiment and the flow of water. FIG. 29 is a schematic plan view of a case plate according to still another embodiment of the present invention as viewed from above. FIG. 30 is a schematic diagram showing the vicinity of the front end portion of the recessed portion of the case plate. FIG. 31 is a schematic cross-sectional view of the toilet device according to the present embodiment as viewed from the side. FIG. 32 is a schematic cross-sectional view showing the vicinity of the front end portion of the recessed portion in a state where the cleaning nozzle is housed. FIG. 33 is a schematic cross-sectional view showing the vicinity of the front end portion of the recessed portion in a state where the cleaning nozzle has advanced from the casing. FIG. 34 is a timing chart illustrating an example of the operation of the toilet apparatus according to the present embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Toilet bowl 101 Bowl 101a Bowl inner wall surface 103 Recessed part 103a Rear end part 103b Communication part 103c Recessed step part 104 Bowl 105 Bowl upper surface 106 Rim 107 Elastic body 110 Reservoir 133 Nozzle 150 for side panel 151 Drive part 152 Side surface recessed part 200 Casing 202A 202B Human body detection sensor 206 Seating sensor 208 Casing front surface 210

Case cover

211, 213 Shaft support 215 Seating sensor 217 Extension portion 217a Front surface 220 Case plate 221 Shutter 221a Protrusion portion 223 Recessed portion 223a Rear end portion 223b Opening portion 223c Outer peripheral surface 223d Supporting part 224 Protruding wall 224a Rear surface 225 Notch 225a Rear end part 226 Claw part 227 Bearing part 228 Shaft 229 Energizing member 229a Arm part 230 Shutter 231 Protruding wall 23 a outer peripheral surface 233 vertical surface 235 inclined surface 237 shaft support portion 239 projection portion 240 nozzle unit 241 cleaning nozzle 243 water outlet 245 nozzle cleaning chamber 245a opening 250 heat exchanger 270 water supply valve unit 271 check valve 272 strainer 273 constant flow valve 274 Solenoid valve 280 Tank 280a Sub tank casing 280b Top surface 280c Side surface 280d Bottom surface 281 Inlet 282 Outlet 283 Drainage port 284 Rectifier plate 284a Perforated 285 First chamber 286 Second chamber 287 Enclosure plate 288 Guide water channel 288a Guide water channel outlet 291 Pump 292 Switching valve 300 toilet seat 302 flat portion 304 rising portion 310 toilet seat electric opening / closing unit 400 toilet lid 402 sensor window 410 toilet lid electric opening / closing unit 500 hot air duct 502 spout 504 hot air blowing fan 506 508 Hot air damper 510 Opening / closing shaft 512 Bending portion 520 Cleaning nozzle 522 Nozzle cleaning chamber 524 Cleaning nozzle tip 526 Cylinder portion 528 Water outlet 530 Deodorizing duct 532 Suction port 534 Deodorizing air blower fan 536 Deodorizing catalyst 550 Heat exchange unit 552 Water supply valve unit 554 Pump Unit 556 Tank 560 Controller board 601 Water pipe 602 Stop cock 603 Flexible hose 604 Inlet pipe 605 Outlet pipe 606 Nozzle cleaning channel 620 Case plate 623 Recessed portion 680 Sub tank 680a Sub tank casing 680b Upper surface 680c Side surface 680d Lower surface 681 Inlet 682 Outlet 683 Drain port 684 Partition 685 Upper space 686 Lower space 687 Gutter

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 according to an embodiment of the present invention.
1A is a schematic perspective view showing a state where the cleaning nozzle is housed in the casing, and FIG. 1B is a schematic perspective view showing a state where the cleaning nozzle has advanced from the casing. .

The toilet apparatus according to the present embodiment includes a Western-style sitting toilet (hereinafter simply referred to as “toilet”) 100 and a casing 200 provided at the upper rear portion thereof. Inside the casing 200, for example, a local cleaning function unit that realizes cleaning of a “buttock” of a user sitting on a toilet seat (not shown) is incorporated. Note that the toilet seat and the toilet lid (not shown) are pivotally supported to the casing 200 so as to be openable and closable at

pivotal support portions

211 and 213 provided on the casing 200.

At the upper part of the casing 200, a seating sensor 215 is provided for detecting that the user is sitting on the toilet seat. When the seating sensor 215 detects a user sitting on the toilet seat, when the user operates a switch (not shown), the cleaning nozzle 241 is placed in the bowl 101 of the toilet 100 as shown in FIG. Can advance. The cleaning nozzle 241 advances through the opening of the casing 200 as will be described in detail later. At this time, the cleaning nozzle 241 can advance into the bowl 101 by pushing up the shutter 230 that opens and closes the opening of the casing 200. Further, one or a plurality of water discharge ports 243 are provided at the tip of the cleaning nozzle 241.

Subsequently, when the cleaning nozzle 241 has advanced into the bowl 101, the cleaning nozzle 241 can spray water from a spout 243 provided at the tip of the bowl 101 to clean the "buttock" of the user sitting on the toilet seat. it can. In the present specification, “water” includes not only cold water but also heated hot water.

The shutter 230 is pivotally supported with respect to the casing 200 and is biased in a direction to close the opening of the casing 200 by a biasing member such as a spring. Therefore, the shutter 230 receives the force from the advancing cleaning nozzle 241 and can rotate about the upper portion to open the opening of the casing 200 as shown in FIG. On the other hand, when the cleaning nozzle 241 moves backward, the shutter 230 does not receive a force from the cleaning nozzle 241, and thus can be rotated by an urging force to close the opening of the casing 200.

The casing 200 has an extending portion 217 that extends toward the front of the bowl 101. At least a part of the extending portion 217 enters the bowl 101 when viewed perpendicular to the bowl upper surface (hereinafter also simply referred to as “upper surface”) 105. Therefore, the shutter 230 is disposed below the extending portion 217. That is, the shutter 230 is covered with the extending portion 217 in the closed state.

In the casing 200, for example, a deodorizing function unit (hereinafter also referred to as “deodorizing device”) that sucks air in the bowl 101 of the toilet 100 and reduces odor components through a filter, a catalyst, or the like, A warm air drying function unit (hereinafter also referred to as “warm air drying device”) that blows warm air toward the “buttock” of the user sitting on the floor, or blows warm air into the toilet room and opens the toilet room An indoor heating function unit for heating (hereinafter also referred to as “indoor heating device”) or the like may be incorporated.

FIG. 2 is a schematic cross-sectional view of the vicinity of the shutter according to the present embodiment.
FIG. 3 is a schematic perspective view showing the toilet of this embodiment.
FIG. 2 shows a state where the cleaning nozzle is housed in the casing, and corresponds to the AA cross-sectional view shown in FIG.

Casing 200 has a case cover 210 and a case plate 220. Devices such as a local cleaning function unit are installed on the case plate 220 and the upper part thereof is covered with a case cover 210. The case plate 220 has a recessed portion 223 formed in a concave shape downward. The recessed portion 223 is provided in a part of the case plate 220 and is inclined so as to become lower from the rear toward the front. An opening 223b through which the cleaning nozzle 241 can pass is provided at the front end of the recessed portion 223. That is, the cleaning nozzle 241 advances or retracts through the opening 223b.

On the other hand, the toilet 100 has the recessed part 103 formed in concave shape toward the downward direction in the bowl upper surface 105, as represented to FIG. The concave portion 103 is formed with a communicating portion 103b communicating with the bowl 101 at the front end thereof, and is lowered from the rear end portion 103a toward the front end portion (communication portion) 103b in the same manner as the concave portion 223 provided in the case plate 220. It is inclined to become. The case plate 220 is placed on the bowl upper surface 105 of the toilet 100 with the recessed portion 223 stored in the recess 103 of the toilet 100. Therefore, the movement of the cleaning nozzle 241 through the opening 223b is the same as the movement of the cleaning nozzle 241 through the communication portion 103b.

A shutter 230 that opens and closes the opening 223b of the recessed portion 223 is attached to the case plate 220. The shutter 230 is provided so as to cover the communication portion 103 b and the opening 223 b, and is pivotally supported with respect to the case plate 220. More specifically, the shutter 230 is pivotally supported with respect to the case plate 220 about a shaft 228 held by the bearing portion 227 of the case plate 220.

In addition, the shutter 230 has a protruding wall 231 that extends toward the communication portion 103b and the opening 223b in the closed state. That is, the shutter 230 has a protruding wall 231 on the back surface facing the communication portion 103b and the opening 223b. The protruding wall 231 partially contacts the opening 223b when the shutter 230 is closed. That is, the closing position of the shutter 230 is determined by the protruding wall 231 partially contacting the opening 223b.

The case cover 210 has an extending portion 217 that extends toward the front of the bowl 101. At least a part of the extending portion 217 enters the bowl 101 as shown in FIG. Therefore, the shutter 230 is disposed below the extending portion 217. That is, the shutter 230 is covered with the extended portion 217 in the closed state. In other words, the shutter 230 is provided at a position retracted from the front surface 217a of the extending portion 217. Therefore, the extending portion 217 covers the shutter 230 in the closed state.

Accordingly, the bearing portion 227 of the case plate 220, the shaft 228 held by the bearing portion 227, and the shaft support portion 237 (see FIG. 4) provided on the shutter 230 are disposed below the extending portion 217. The upper portion is covered with the extended portion 217. In other words, the bearing portion 227, the shaft 228, and the shaft support portion 237 are provided at positions retracted from the front surface 217 a of the extending portion 217. Therefore, the extended portion 217 covers the bearing portion 227, the shaft 228, and the shaft support portion 237 above.

Therefore, small water urinated from a man standing posture is not easily applied to the shutter 230. That is, even if the urinated small water travels toward the shutter 230, since the shutter 230 is covered by the extended portion 217, the small water is prevented from traveling by the extended portion 217. Therefore, the urinated small water is less likely to be directly applied to the shutter 230. Since the upper portion of the shutter 230 is disposed directly below the extending portion 217, it is less likely to urinate directly than the lower portion of the shutter 230.

Further, as shown in FIG. 2, the bearing portion 227, the shaft 228, and the shaft support portion 237 are provided above the opening 223b. That is, the shutter 230 is pivotally supported at the upper part thereof. Therefore, the bearing portion 227, the shaft 228, and the shaft support portion 237 are disposed directly below the extending portion 217. Therefore, the bearing portion 227, the shaft 228, and the shaft support portion 237 are less likely to urinate directly than the lower portion of the shutter 230.

Furthermore, as shown in FIG. 2, the shutter 230 has a vertical surface 233 and an inclined surface 235 on the surface on the bowl 101 side. The vertical surface 233 is provided on the upper part of the shutter 230. On the other hand, the inclined surface 235 is provided below the shutter 230 and is inclined so as to recede from the upper part toward the lower part.

According to this, even if small water splashes on the inner wall surface of the bowl 101 and adheres to the inclined surface 235 of the shutter 230, the inclined surface 235 does not run up. Further, even if small water splashes on the inner wall surface of the bowl 101 and adheres to the vertical surface 233 of the shutter 230, the small water quickly flows downward. Therefore, even when small water splashes on the inner wall surface of the bowl 101 and adheres to the shutter 230, there is almost no possibility of flowing toward the bearing portion 227, the shaft 228, or the shaft support portion 237.

According to this, since the toilet apparatus according to the present embodiment can suppress the adhesion of urine to the shaft 228 that supports the shutter 230, it is possible to suppress the generation of a strange odor and the generation of urinary stones. Therefore, the toilet apparatus according to the present embodiment can suppress problems such as the shutter 230 being unable to be opened and closed by urine stone.

Note that an elastic body 107 having elasticity is provided between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100. The elastic body 107 supports the vicinity of the opening 223 b of the recessed portion 223 and secures liquid tightness between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100. That is, the elastic body 107 prevents small water or the like from entering between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100. The elastic body 107 is also disposed on the upper surface 105 of the toilet bowl 100 along the front edge of the case plate 220 to ensure liquid tightness between the case plate 220 and the upper surface 105 of the toilet bowl 100. To prevent the intrusion.

In the illustrated example, the case plate 220 is provided with the bearing portion 227, and the shutter 230 is provided with the shaft support portion 237. However, the present invention is not limited to this, and the case plate is provided with the shaft support portion. The shutter may be provided with a bearing portion.

FIG. 4 is a schematic perspective view showing a mounting structure between the shutter and the case plate.
4A is a schematic perspective view showing a state before the shutter is attached to the case plate, and FIG. 4B is a schematic perspective view showing a state after the shutter is attached to the case plate. It is.

The case plate 220 has a bearing portion 227 above the opening 223b as described above with reference to FIG. The shaft 228 is held by the bearing portion 227. Further, the shaft 228 is bent in a bowl shape at one end, and is hooked and held by the claw portion 226 of the case plate 220. A biasing member 229 that biases the shutter 230 is attached to the shaft 228. Examples of the urging member 229 include a so-called “torsion coil spring”.

On the other hand, the shutter 230 has a shaft support portion 237 on the upper part of the surface opposite to the bowl 101, that is, on the back side of the vertical surface 233. The shaft support 237 has a shaft hole that receives the shaft 228 attached to the case plate 220. Further, at least a part of the shaft support portion 237 is provided with a notch portion that can force the shaft 228 into the shaft hole portion. Therefore, the shaft 228 can be forced into the shaft support 237 of the shutter 230 from the state shown in FIG. 4A, that is, from the state where the shaft 228 is attached to the bearing portion 227 of the case plate 220. Thus, the shaft support portion 237 supports the shaft 228 held by the bearing portion 227, and the shutter 230 is rotatably supported with respect to the case plate 220 about the shaft 228.

At this time, the protrusion 239 provided on the shutter 230 is in contact with the arm 229a of the urging member 229. The protrusion 239 rotates with the operation of the shutter 230 and receives a load from the arm 229a. That is, when the shutter 230 is opened, the protrusion 239 rotates against the load from the arm 229a. Therefore, the shutter 230 is urged in the closing direction by the urging member 229.

Therefore, the shutter 230 cannot be opened by itself, but is opened by receiving a force from the cleaning nozzle 241 that advances into the bowl 101. That is, the shutter 230 is opened around the shaft 228 by being pushed from the cleaning nozzle 241. On the other hand, when the cleaning nozzle 241 is retracted and accommodated in the casing 200, the shutter 230 is not subjected to the force from the cleaning nozzle 241, and is closed by the urging force from the urging member 229. That is, the shutter 230 is in a closed state as shown in FIG. 1A when the cleaning nozzle 241 is not advanced. According to this, the shutter 230 can prevent small water urinated by the user or seal water splashed from entering the cleaning nozzle 241 side from the opening 223b.

FIG. 5 is a schematic cross-sectional view of the vicinity of the shutter according to the present embodiment.
FIG. 5 shows a state in which the cleaning nozzle has advanced from the casing, and corresponds to a cross-sectional view taken along the line BB shown in FIG.

The nozzle unit 240 having the cleaning nozzle 241 has a nozzle cleaning chamber 245 at one end. The nozzle cleaning chamber 245 can clean the outer peripheral surface of the cleaning nozzle 241 by spraying water from a water outlet provided inside the nozzle cleaning chamber 245. In addition, the nozzle cleaning chamber 245 can suppress scattering of cleaning water for cleaning the outer peripheral surface when the cleaning nozzle 241 advances and retreats. The cleaning nozzle 241 advances through the nozzle cleaning chamber 245. At this time, the cleaning nozzle 241 advances into the bowl 101 by pushing the shutter 230 from the rear as shown in FIG.

Then, the cleaning nozzle 241 can spray the water from the spout 243 in a state where the cleaning nozzle 241 has advanced into the bowl 101 to clean the “butt” of the user sitting on the toilet seat. Here, the washing water sprayed from the water discharge port 243 may splash with a “wet” or the like, or may splash with the inner wall surface of the bowl 101. Therefore, although sewage and filth may scatter toward the shutter 230, since the bearing portion 227, the shaft 228, and the shaft support portion 237 are disposed directly below the extending portion 217, the sewage and filth are The bearing portion 227, the shaft 228, and the shaft support portion 237 are not easily applied. Further, in the state where the shutter 230 is opened, the path from the inside of the bowl 101 to the bearing portion 227, the shaft 228, and the shaft support portion 237 is narrow, so that dirty water and filth are transferred to the bearing portion 227, the shaft 228, and the shaft support portion 237. Is more difficult to take.

According to this, since the toilet apparatus according to the present embodiment can suppress the adhesion of dirty water and filth to the shaft 228 that supports the shutter 230, it is possible to suppress the generation of off-flavors and urinary stones. Therefore, the toilet apparatus according to the present embodiment can suppress problems such as the shutter 230 being unable to open and close due to urine stones and dirt.

FIG. 6 is a schematic cross-sectional view of the toilet device according to the present embodiment as viewed from the side.
FIG. 6 corresponds to the AA cross-sectional view shown in FIG.
As described above with reference to FIG. 2, the shutter 230 is disposed below the extended portion 217 in the closed state, and the upper portion is covered by the extended portion 217. Therefore, a user standing in front of the toilet 100 can hardly see the shutter 230 in a standing posture.

Therefore, the toilet apparatus according to the present embodiment has a good appearance and can improve the design. In addition, a man who urinates in a standing posture cannot see the shutter 230, and therefore hardly thinks that the small water is intentionally applied to the shutter 230. That is, when the shutter 230 enters the user's line of sight while urinating, the user may think of intentionally applying small water to the shutter 230, but in the toilet apparatus according to the present embodiment, the user can think of it. There is hardly anything. Therefore, there is little possibility that small water is intentionally applied to the shutter 230.

Further, as described above with reference to FIG. 2, the bearing portion 227, the shaft 228, and the shaft support portion 237 are disposed directly below the extending portion 217. Therefore, when a small amount of water is intentionally applied to the bearing portion 227, the shaft 228, or the shaft support portion 237, it is necessary to urinate so as to substantially follow the two-dot chain line C shown in FIG. However, this is almost impossible. Therefore, there is little possibility that small water is intentionally applied to the bearing portion 227, the shaft 228, and the shaft support portion 237.

FIG. 7 is a schematic perspective view in which the vicinity of the shutter according to the present embodiment is enlarged and viewed.
FIG. 8 is a schematic plan view of the vicinity of the shutter according to the present embodiment as viewed from the front.
FIG. 9 is a schematic plan view of the vicinity of the shutter according to the present embodiment as viewed from above.
9 corresponds to the DD cross-sectional view shown in FIG.

The toilet bowl 100 has the recessed step part 103c connected to the bowl inner wall surface 101a, as represented to FIG. The shutter 230 is provided so as to be accommodated in the recessed step portion 103c. Therefore, the surface of the shutter 230 on the bowl 101 side is substantially flush with the bowl inner wall surface 101a as shown in FIGS. That is, the step between the surface of the shutter 230 on the bowl 101 side and the inner wall surface 101a of the bowl is suppressed. According to this, the effect that it is easy to clean the bowl inner wall surface 101a and the surface of the shutter 230 can be obtained.

Further, since the shutter 230 is provided so as to be accommodated in the recessed step portion 103c, as shown in FIGS. 7 and 8, the shutter 230 and the toilet 100 can have a sense of unity. Therefore, the toilet apparatus according to the present embodiment has a good appearance and can improve the design.

FIG. 10 is a schematic cross-sectional view in which the protruding wall of the shutter according to the present embodiment is viewed in an enlarged manner.
FIG. 10 corresponds to an enlarged view of the range E shown in FIG.
As described above with reference to FIG. 2, the shutter 230 has the protruding wall 231 that extends toward the opening 223 b in the closed state. The outer peripheral surface 231a of the projecting wall 231 is disposed on the central portion side of the toilet apparatus by a distance F from the outer peripheral surface 223c of the recessed portion 223 of the case plate 220.

According to this, small water can be prevented from entering the opening 223b side from the periphery of the shutter 230. Therefore, adhesion of urine to the shaft 228 that supports the shutter 230 can be suppressed. Moreover, adhesion of urine to the cleaning nozzle 241 can be suppressed. Therefore, the cleanliness of the cleaning nozzle can be ensured.

Also, interference between the shutter 230 and the toilet 100 can be suppressed. Therefore, since the shutter 230 interferes with the toilet 100, it is possible to suppress problems such as the inability to close the opening 223b of the recessed portion 223. Further, every time the shutter 230 is opened and closed, it is possible to prevent the shutter 230 and the toilet 100 from interfering with each other to generate an unpleasant sound (collision sound).

In addition, an elastic body 107 is provided between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100. Therefore, even if the outer peripheral surface 231a of the protruding wall 231 is disposed closer to the center of the toilet device than the outer peripheral surface 223c of the recessed portion 223, the recessed portion 223 of the case plate 220, the recessed portion 103 of the toilet 100, It is possible to prevent small water from entering between the two.

As described above, according to the present embodiment, the shutter 230 is disposed below the extending portion 217 in the closed state, and the upper portion is covered by the extending portion 217. In other words, the shutter 230 is provided at a position retracted from the front surface 217a of the extending portion 217. Further, the bearing portion 227 of the case plate 220, the shaft 228 held by the bearing portion 227, and the shaft support portion 237 provided on the shutter 230 are disposed directly below the extending portion 217. Therefore, it is difficult for the bearing portion 227, the shaft 228, and the shaft support portion 237 to receive small water discharged by the user. Thereby, since the toilet apparatus concerning this embodiment can suppress adhesion of the urine to the axis | shaft 228 which pivotally supports the shutter 230, it can suppress generation | occurrence | production of a strange odor, and generation | occurrence | production of a urine stone. Therefore, the toilet apparatus according to the present embodiment can suppress problems such as the shutter 230 being unable to be opened and closed by urine stone.

Next, a toilet apparatus according to another embodiment of the present invention will be described with reference to the drawings.
FIG. 11 is a schematic diagram showing a toilet apparatus according to another embodiment of the present invention.
FIG. 12 is a schematic diagram illustrating a state in which the toilet seat and the toilet lid of the toilet apparatus according to this embodiment are closed.
FIG. 13 is a schematic perspective view showing the toilet of this embodiment.

As in the toilet apparatus described above with reference to FIG. 1, the toilet apparatus of the present embodiment includes a toilet 100, a casing 200 provided at the upper rear portion thereof, and a toilet seat 300 that is pivotally supported with respect to the casing 200. It has. Further, like the toilet seat 300, a toilet lid 400 that is pivotally supported by the casing 200 so as to be freely opened and closed is provided. The casing 200 is provided at the upper rear part of the toilet 100, and a local cleaning function unit that realizes cleaning of a user who sits on the toilet seat 300, such as a “butt”, is built therein. The local cleaning function section is covered with side panels 150 provided on the left and right sides of the toilet 100.

More specifically, as shown in FIG. 13, a side recess 152 that is recessed inward is formed at the rear side of the toilet 100. The side recess 152 has a “warm air drying device” that blows hot air on a “buttock” of a user seated on the toilet seat 300 and the like, and a bowl (hereinafter also referred to as “bowl portion”) 101. Various mechanisms such as a “deodorizing device” that removes odor components by sucking the air and an “indoor heating device” that blows warm air around to heat the toilet space are provided. Furthermore, an “automatic water washing unit” that allows the washing water to flow into the bowl 101 of the toilet 100 may be provided in the side recess 152. This is a unit for automatically flowing flush water through the toilet 100 by operating a valve for supplying flush water to the toilet 100. By providing these units in the side recess 152, the sanitary washing device placed on the upper surface of the toilet 100 can be made compact. The sanitary washing device is a device having the above-described hot air drying device, deodorizing device, and the like, and the casing 200 forms an outer shell of the sanitary washing device. Further, since the side recess 152 is covered with a side panel (hereinafter also referred to as “side panel”) 150, design properties can be secured.

The toilet 100 has a recess (hereinafter also referred to as a “notch”) 103. As will be described in detail later, the notch 103 is provided at the center rear portion of the rim 106 of the toilet 100 and has a shape recessed downward. When the cleaning nozzle is stored, the tip of the cleaning nozzle is disposed in the notch 103, and advances into the bowl 104 as described above when used. That is, when the cleaning nozzle is stored, the front end of the cleaning nozzle is disposed on the inner side of the casing 200 with respect to the rim 106. Therefore, the tip of the cleaning nozzle in the housed state is disposed behind the front surface 208 of the casing.

In addition, a seating sensor 206 that detects that the user is sitting on the toilet seat 300 is provided on the upper portion of the casing 200. A human body detection sensor 202 </ b> A that detects that the user has entered the toilet room can be provided in the upper rear portion of the casing 200. The human body detection sensor 202A can detect a user who enters the toilet room through the sensor window 402 of the toilet lid 400 even when the toilet lid 400 is closed. For example, the toilet lid 400 may be automatically opened when the human body detection sensor 202A detects a user.

Furthermore, a human body detection sensor 202B for detecting the presence or absence of a user in the toilet room can be provided in the upper front part of the casing 200. For example, the toilet seat 300 and the toilet lid 400 may be automatically closed when the human body detection sensor 202B stops detecting the user and a predetermined time has elapsed.

Inside the casing 200, as will be described in detail later, there is provided a hot air drying device that blows and drys hot air toward the “butt” of the user sitting on the toilet seat 300. The warm air drying device is provided with a warm air duct for guiding the warm air into the bowl 104 of the toilet 100. The hot air duct has a spout 502 at the tip, and this spout 502 is disposed so as to face the inside of the bowl 104 from the front surface 208 of the casing. Therefore, the spout 502 is disposed above the notch 103 of the toilet 100, and is disposed closer to the bowl 104 (frontward) than the housed cleaning nozzle, as will be described in detail later. .

As shown in FIG. 15 described later, the toilet seat 300 is pivotally supported with respect to the casing 200 so as to be openable and closable around a pivotal support portion (hereinafter also referred to as “opening and closing shaft”) 211. Further, the toilet lid 400 is pivotally supported with respect to the casing 200 so as to be openable and closable around a pivotal support portion (hereinafter also referred to as “open / close shaft”) 213.

The toilet apparatus according to the present embodiment automatically opens and closes the toilet seat 300 using a toilet seat electric opening / closing unit, which will be described later, according to the detection status of the human body detection sensor 202A and the human body detection sensor 202B or the operation of a switch (not shown) by the user. Can be made. Similarly, the toilet lid 400 is automatically opened and closed using a toilet lid electric opening / closing unit described later according to the detection status of the human body detection sensor 202A and the human body detection sensor 202B or the operation of a switch (not shown) by the user. be able to.

FIG. 14 is a schematic side view for explaining the hot air drying device of the present embodiment.
FIG. 15 is a schematic cross-sectional view showing the inside of the casing in a state where the cleaning nozzle is housed. That is, FIG. 15 corresponds to the GG sectional view in FIG. In the toilet apparatus illustrated in FIG. 14, the cleaning nozzle is stored in the notch 103 of the toilet 100.

Inside the casing 200, there is provided a warm air drying device that blows warm air toward the “buttock” of the user sitting on the toilet seat 300 to dry it. The hot air drying device includes a hot air duct 500 for guiding the hot air into the bowl 104 of the toilet 100, a hot air blowing fan 504, and a heater 506. The hot air blowing fan 504 is disposed in the rear part inside the casing 200. Note that most of the hot air blowing fan 504 is disposed below the upper surface of the toilet 100. The hot air duct 500 has a jet outlet 502 at one end on the bowl 104 side, and the other end communicates with the hot air blowing fan 504. Further, the hot air duct 500 has a bent portion 512 bent upward between the hot air blowing fan 504 and the jet port 502. The heater 506 is provided in the hot air duct 500 between the bent portion 512 and the end portion on the side communicating with the hot air blowing fan 504. Note that, as will be described in detail later, the entire warm air blowing fan 504 may be disposed below the upper surface of the toilet 100.

The hot air duct 500 further includes a hot air damper 508 that closes the ejection port 502, and the hot air damper 508 is pivotally supported by the hot air duct 500 so as to be openable and closable around an opening / closing shaft 510. Note that the hot air damper 508 illustrated in FIG. 4 represents an open state. The hot air damper 508 may be opened by opening / closing means (not shown), or may be opened by the wind pressure of the warm air sent from the hot air blowing fan 504 through the inside of the hot air duct 500. The warm air sent from the warm air blower fan 504 through the heater 506 is directed from the outlet 502 toward the user's “buttock” or the like with the warm air damper 508 opened as shown in FIG. Be sprayed.

In the casing 200, a cleaning nozzle unit is further provided. The cleaning nozzle unit includes a cleaning nozzle 520 (see FIG. 16) that moves into the bowl 104 of the toilet 100 by a driving force transmitted from a nozzle motor (not shown), and an outer peripheral surface of the cleaning nozzle 520 in a state where the cleaning nozzle 520 is housed. A nozzle cleaning chamber 522 for cleaning the liquid and a cylinder portion 526 for storing at least a part of the cleaning nozzle 520.

The cleaning nozzle 520 is slidably provided with respect to the cylinder portion 526 and the nozzle cleaning chamber 522, and at least a part of the cleaning nozzle 520 can be accommodated in the cylinder portion 526. In the state in which the cleaning nozzle 520 is stored, as illustrated in FIG. 4, the cleaning nozzle tip 524 is disposed inside the notch 103 of the toilet 100 and stored in the nozzle cleaning chamber 522. Most of the parts other than the cleaning nozzle tip 524 are accommodated in the cylinder part 526. At this time, the cleaning nozzle 520 is in a state of being inclined forward and downward.

Therefore, as shown in FIG. 15, the jet outlet 502 of the hot air duct 500 is disposed closer to the front side (closer to the bowl 104) than the cleaning nozzle 520 in the housed state. That is, the jet outlet 502 of the hot air duct 500 is not disposed directly above the cleaning nozzle 520 or the nozzle cleaning chamber 522 in the housed state. Therefore, the height of the casing 200 in the vertical direction can be kept low. Thereby, the sitting comfort when the user sits on the toilet seat 300 becomes better.

This is because the height of the casing 200 can be kept low, so that the height of the opening / closing shaft 211 of the toilet seat 300 can be kept low, that is, the height of the rising portion 304 at the rear part of the toilet seat 300 can be kept low. This is because it can. The toilet seat 300 includes a flat portion 302 that extends from the front end portion to the rear portion, and a rising portion 304 that is gently inclined at the rear portion. And in order to stabilize the posture when the user is sitting on the toilet seat 300, the user tries to place the buttocks behind the toilet seat 300. Therefore, if the flat part 302 is extended long to the back part and the height of the rising part 304 is further lowered, the sitting comfort on the toilet seat 300 becomes better. This is because the foreign object does not contact the rear part of the buttocks, so that the user does not feel terrible or feels cold when the toilet seat is a heated toilet seat.

In the toilet apparatus according to the present embodiment, as described above, the height of the casing 200 can be kept low by disposing the spout 502 closer to the front than the cleaning nozzle 520 in the housed state. The sitting comfort when the user sits on the toilet seat 300 becomes better. Moreover, since the jet nozzle 502 is disposed at a substantially central portion with respect to the horizontal direction of the casing 200 and close to the bowl 104, the jet nozzle 502 can be brought close to the user's buttocks. Therefore, drying efficiency such as “wet” can be further increased.

FIG. 16 is a schematic side view for explaining the deodorizing apparatus of the present embodiment.
FIG. 17 is a schematic cross-sectional view showing the inside of the casing in a state where the cleaning nozzle has advanced. That is, FIG. 17 corresponds to the GG sectional view in FIG. In the toilet apparatus shown in FIG. 16 as well, the cleaning nozzle represents a state where it has advanced into the bowl.

Inside the casing 200, a deodorizing device that sucks air in the bowl 104 and removes odor components is provided. The deodorizing device includes a deodorizing blower fan 534 that sucks air in the bowl 104, a deodorizing duct 530 for guiding the air in the bowl 104 to the deodorizing blower fan 534, and an odor component from the air discharged from the deodorizing blower fan 534. And a deodorizing catalyst 536 to be removed. As will be described in detail later, the deodorization duct 530 has a suction port near one end on the bowl 104 side, and the other end communicates with a deodorization blower fan 534. Further, half or more of the deodorizing blower fan 534 is disposed below the upper surface of the toilet 100. Furthermore, the entire deodorizing catalyst 536 disposed below the deodorizing blower fan 534 is disposed below the upper surface of the toilet 100. In addition, as will be described in detail later, the entire deodorizing blower fan 534 may be disposed below the upper surface of the toilet 100.

The air in the bowl 104 is sucked from the suction port of the deodorizing duct 530 and is sucked into the deodorizing blower fan 534 through the deodorizing duct 530. Subsequently, the air sucked into the deodorizing blower fan 534 is blown out toward the deodorizing catalyst 536 and passes through the deodorizing catalyst 536. By doing so, the odor component of the air in the bowl 104 is removed.

The cleaning nozzle 520 shown in FIG. 17 represents a state in which the cleaning nozzle 520 has advanced into the bowl 104. At this time, it is more preferable that the warm air damper 508 is closed. This is because the water discharged from the cleaning nozzle 520 may be rebounded by the user's “wet” or the like, and the water may be applied to the heater 506 disposed in the hot air duct 500. If water is applied to the heater 506, the heater 506 may be damaged. Therefore, it is more preferable that the hot air damper 508 is closed when the cleaning nozzle 520 has advanced into the bowl 104.

Further, the hot air duct 500 has a bent portion 512 bent upward, and the heater 506 includes the bent portion 512 and a hot air blowing fan 504 communicated with an end portion on the opposite side to the jet port 502. Even if water or small water enters from the jet port 502, the water or small water gets over the bent portion 512 bent upward and is applied to the heater 506. There is little fear.

FIG. 18 is a schematic enlarged view in which a part of the inside of the casing of the present embodiment is viewed in an enlarged manner.
Moreover, FIG. 19 is the schematic diagram which looked at a part inside the casing of this embodiment from front diagonally.
FIG. 20 is a schematic top view of a part of the inside of the casing of the present embodiment as viewed from above.
In the toilet apparatus shown in FIGS. 18 to 20, the cleaning nozzle 520 represents the state of having advanced into the bowl 104.

As shown in FIGS. 18 to 20, the hot air duct 500 passes through the hot air blower fan 504 to the side of the cylinder portion 526 of the cleaning nozzle unit, that is, to the side of the cleaning nozzle 520 in the housed state. Through the upper side of the nozzle 520, it extends further forward (closer to the bowl 104) than the cleaning nozzle 520 in the housed state. Therefore, as described above with reference to FIG. 15, the ejection port 502 is provided closer to the front than the cleaning nozzle 520 in the housed state. The hot air duct 500 is a wind direction rib that adjusts the air direction in the vicinity of the jet port 502 in order to blow the hot air sent from the hot air blowing fan 504 toward the user's buttocks more reliably. You may have.

On the other hand, as shown in FIGS. 18 to 20, the deodorizing duct 530 passes from the deodorizing blower fan 534 (see FIG. 16) to the side of the hot air duct 500 and is provided near the one end on the bowl 104 side. 532 is placed in the bowl 104. At this time, the suction port 532 is spaced apart from the side of the jet port 502 of the hot air duct 500. That is, the jet port 502 and the suction port 532 are not superposed in the vertical direction. For this reason, the warm air duct 500 and the deodorizing duct 530 are not superposed in the vertical direction in the vicinity of the suction port 532.

As a result, the height of the casing 200 in the vertical direction can be kept low. Thereby, as described above with reference to FIG. 15, the sitting comfort when the user sits on the toilet seat 300 becomes better. Further, with respect to other effects, the same effects as those described above with reference to FIG. 15 can be obtained.

Next, the details of the internal structure of the casing and toilet of this embodiment will be described.
FIG. 21 is a schematic perspective view of the detailed structure in the casing and toilet according to the present embodiment as viewed from the left front.
FIG. 22 is a schematic perspective view of the detailed structure in the casing and the toilet of the present embodiment as viewed from the right front.
As shown in FIG. 21, a heat exchange unit 550 is provided in the lower left part of the toilet 100. Further, a water supply valve unit 552 and a pump unit 554 are provided above the heat exchange unit 550. The water supplied from the water supply valve unit 552 to the heat exchange unit 550 is heated, and the water can be pumped up by the pump unit 554 provided in the nozzle unit and supplied to the cleaning nozzle 520.

A tank 556 is provided at the center rear portion in the casing 200. As will be described in detail later, the tank 556 is provided in a water channel between the water supply valve unit 552 and the pump unit 554 and has a backflow prevention function. In addition, a toilet lid electric opening / closing unit 410 for automatically opening and closing the toilet lid 400 is provided in the upper portion of the heat exchange unit 550 and in the rear portion of the casing 200. Furthermore, a toilet seat electric opening / closing unit 310 for automatically opening and closing the toilet seat 300 is provided at the right front portion in the casing 200.

22, a deodorizing blower fan 534 that sucks air in the bowl 104 is provided below the casing 200 and on the right side of the toilet 100. As shown in FIG. A controller board 560 is provided below the deodorizing blower fan 534. The controller board 560 determines the operation of the cleaning nozzle unit, the hot air drying device, the deodorizing device, etc. based on the operation of a switch (not shown) by the user or the detection status of the human body detection sensor 202A, the human body detection sensor 202B, the seating sensor 206 Can be controlled.

As described above, the human body detection sensor 202A and the seating sensor 206 are provided on the upper surface of the casing 200. A hot air blower fan 504 is disposed below the casing 200 and below the upper surface of the toilet 100. A hot air duct 500 is provided in front of the hot air blowing fan 504. As described above with reference to FIGS. 18 to 20, the hot air duct 500 passes through the side of the cylinder portion 526 and is stored. It is arranged over the front side of the cleaning nozzle 520.

A cleaning nozzle unit is provided at the front center of the casing 200. As described above with reference to FIGS. 11 to 12, the cleaning nozzle unit advances the cleaning nozzle 520 into the bowl 104 from the notch 103 of the toilet 100 and supplies water from the water outlet 528 provided near the tip of the cleaning nozzle 520. The user can sit on the toilet seat 300 to wash the “butt” and the like.

In the toilet apparatus according to the present embodiment, the whole or part of the hot air blowing fan 504 of the hot air drying apparatus and / or the whole or part of the deodorizing catalyst 536 and the deodorizing fan 534 of the deodorizing apparatus are used as a casing. It can be disposed below 200, below the upper surface of the toilet 100, that is, at a portion hidden by the side panel 150. As a result, the casing 200 can be made into a small size, and the height can be kept low from the front part to the rear part of the casing 200, and the upper surface of the casing 200 has a flat shape with little unevenness. be able to. Therefore, a toilet device with high design can be realized.

As described above, according to the present embodiment, the jet port 502 of the hot air duct 500 is disposed closer to the front side (closer to the bowl 104) than the cleaning nozzle 520 in the housed state. Further, since the suction port 532 of the deodorizing duct 530 is provided apart from the side of the jet outlet 502 of the hot air duct 500, the hot air duct 500 and the deodorizing duct 530 do not overlap in the vertical direction. Therefore, the height of the casing 200 in the vertical direction can be kept low, and the sitting comfort when the user sits on the toilet seat 300 can be improved.

Next, a toilet apparatus according to still another embodiment of the present invention will be described with reference to the drawings. In addition, in this embodiment, the flow of water and the backflow prevention function of a tank are mainly demonstrated.
Fig.23 (a) is a perspective view which illustrates the internal structure of the sanitary washing apparatus of the toilet apparatus concerning further another embodiment of this invention, FIG.23 (b) is the water discharge nozzle arrange | positioned at the notch part. It is a schematic diagram showing.

As described above, the casing 200 of the sanitary washing device includes a case cover (hereinafter also referred to as “upper casing”) 210 that pivotally supports the toilet seat 300 and the toilet lid 400, and the toilet casing 100 covered with the upper casing 210. And a plate-like case plate (hereinafter also referred to as “lower casing”) 220 that abuts the upper surface of the plate. The lower casing 220 includes a cleaning nozzle (hereinafter also referred to as “water discharge nozzle”) 241, a drive unit 151 that moves the water discharge nozzle 241 back and forth with respect to the bowl portion 101, a tank (hereinafter also referred to as “sub tank”) 280, etc. Various elements necessary for performing sanitary washing are attached. Furthermore, a shutter 221 that covers a communication portion (hereinafter also referred to as “opening”) 103 b of a concave portion (hereinafter also referred to as “notch”) 103 is pivotally supported on lower casing 220. The shutter 221 covers the opening 103b in a state where the water discharge nozzle 241 is housed in the sanitary washing device, but when water is discharged from the water discharge nozzle 241, it is pushed open by the water discharge nozzle 241 that advances into the bowl portion 101, Opening 103b is opened.

The lower casing 220 is disposed at the rear part of the toilet 100, and its front edge protrudes slightly forward from the rear end of the bowl part 101. Further, the lower casing 220 is provided with a nozzle notch 133 at a position corresponding to the notch 103 of the toilet 100. The water discharge nozzle 241 advances to the bowl portion 101 through the nozzle cutout 133, the cutout portion 103, and the opening 103b when discharging water.

In this way, the water discharge nozzle 241 is disposed in the notch 103 formed in the toilet 100, and the water discharge nozzle 241 is advanced into the bowl 101 through the notch 103 and the opening 103b, so that the rim surface of the sanitary washing device can be obtained. Therefore, the height H1 can be reduced and the size can be reduced. Further, the height H2 of the toilet seat 300 pivotally supported by the upper casing 210 of the sanitary washing device can also be suppressed, and the toilet seat 300 can be formed into a shape having a small gradient in the front-rear direction. In particular, it is possible to prevent the rear of the toilet seat 300 from tilting upward as much as possible. That is, the toilet seat 300 having a wide flat portion can be realized. As a result, the position of the toilet seat 300 is kept low, and even a small user can sit on the toilet seat 300 stably. Moreover, even a user with a large buttocks can improve the sitting comfort. This is as described above.

On the other hand, in the toilet 100 formed in this way, when the sewage splashes in the bowl 101 while the water is discharged from the water discharge nozzle 241 or when the drainage of the toilet 100 is clogged and the water level of the bowl 101 increases. There is a possibility that sewage enters the notch 103 from the opening 103b. When dirty water enters and the notch 103 is soiled, it is not easy to perform manual cleaning by the user because of the deep shape.

Therefore, in the toilet apparatus according to the present embodiment, the sub tank 280 is disposed behind the water discharge nozzle 241 and the notch 103, and the overflow water flowing out from the sub tank 280 is introduced into the notch 103. That is, the notch 103 is cleaned by the overflow water flowing out from the sub tank 280. The overflow water washed by flowing through the notch 103 falls into the bowl portion 101 from the opening 103b and flows out together with the water in the bowl 101 when the toilet 100 is drained.

Hereinafter, with reference to the drawings, the cleaning of the notch with overflow water and the sub tank will be described in detail.
FIG. 24 is a block diagram illustrating a water channel configuration of the toilet apparatus according to the present embodiment, and FIG. 25 is a schematic diagram illustrating the shape of a sub tank used in the toilet apparatus according to the present embodiment and the flow of water.

As shown in FIG. 24, a stop cock 602 connected to a water pipe 601 and a water supply valve unit (hereinafter also simply referred to as “valve unit”) 270 are connected by a flexible hose 603 having flexibility. . The valve unit 270 includes a check valve 271 that prevents backflow of water upstream from the valve unit 270, a strainer 272 that traps foreign matter in water, a constant flow valve 273 that maintains a constant flow rate of water regardless of the supply water pressure, To have a solenoid valve 274 for selectively switching between water flow / stop water downstream. Since the valve unit 270 is disposed in the side recess 152 of the toilet 100, the valve unit 270 is positioned below the upper surface (hereinafter also referred to as “rim surface”) 105 of the toilet 100.

The water that has passed through the electromagnetic valve 274 is sent to the upper side of the rim surface 105 by the inlet pipe 604 and supplied to the sub tank 280 arranged on the lower casing 220. The sub-tank 280 is provided with an inflow port 281 for introducing water into the upper side and an outflow port 282 for discharging water from the inside at the lower side. Further, a drain outlet 283 for allowing overflow water to flow out is provided on the side surface of the sub tank 280. Accordingly, even when a reverse flow of water from the outlet 282 to the inside of the sub tank 280 occurs and the water level stored in the sub tank 280 rises, the water flows out from the drain outlet 283 as overflow water and flows into the inlet 281. Therefore, the back flow of water to the solenoid valve 274 can be prevented.

Next, the flow of water flowing out from the outlet 282 of the sub tank 280 will be described. A cleaning pump (hereinafter simply referred to as “pump”) 291 is connected downstream of the outlet pipe 605 connected to the outlet 282. The pump 291 pumps out the water in the sub-tank 280 from the outlet 282, energizes it, sends it downstream, and allows adjustment of the flow rate (water force).

A heat exchanger 250 is provided downstream of the pump 291. The heat exchanger 250 includes a heating source such as a sheathed heater, for example, and heats the water sent from the upstream pump 291. The heat exchanger 250 may be a so-called instantaneous type or a hot water storage type, but the description will be made hereinafter assuming that the heat exchanger 250 is an instantaneous type.

A switching valve 292, a water discharge nozzle 241, and a nozzle cleaning channel 606 are provided downstream of the heat exchanger 250. The water that has passed through the heat exchanger 250 is selectively switched to the water discharge nozzle 241 or the nozzle cleaning flow path 606 by the switching valve 292. When the user seated on the toilet seat 300 selects “wet” cleaning using a remote controller (not shown), the heat exchanger 250 heats water, and the switching valve 292 sends water to the water discharge nozzle 241. Switch as follows. Thereby, warm water is discharged from the water discharge nozzle 241, and the user can perform “wet” cleaning. The water temperature and temperature of the hot water discharged from the water discharge nozzle 241 can be changed according to the user's preference, and the user adjusts the driving state of the pump 291 and the heating amount of the heat exchanger 250 by a remote controller or the like. .

In addition, it is possible to clean the water discharge nozzle 241 itself after cleaning the “bottom” or when the user operates the remote controller to give an instruction. In this case, the switching valve 292 switches so that water is sent to the nozzle cleaning flow path 606 without heating the water by the heat exchanger 250. The water sent to the nozzle cleaning channel 606 is discharged toward the water discharge nozzle 241, thereby cleaning the water discharge nozzle 241.

On the other hand, if the flow rate of water that is pumped by the pump 291 and flows out from the outlet port 282 is smaller than the flow rate of water that flows into the sub tank 280 from the inlet port 281, the flow rate in the sub tank 280 is indicated by an arrow OF from the drain port 283. Water flows out (overflow water). This overflow water is introduced into the notch 103 of the toilet 100, and the notch 103 is washed by flowing through the notch 103 toward the bowl 101. The overflow water washed by flowing through the notch 103 falls into the bowl portion 101 from the opening 103b and flows out together with the water in the bowl portion 101 when the toilet 100 is drained.

Next, the shape of the sub tank 280 will be described with reference to FIG.
25 (a) is a perspective view of the sub tank 280, FIG. 25 (b) is a plan view of the sub tank 280, FIG. 25 (c) is a sectional view taken along the line II of the sub tank 280, and FIG. 25 (d) is the sub tank 280. FIG. The sub tank 280 has a sub tank casing 280a that forms an outer shell thereof, and a space capable of storing water is formed inside the sub tank casing 280a. An inlet 281 to which the inlet pipe 604 is connected is provided on the upper surface 280b of the sub tank casing 280a, and an outlet 282 to which the outlet pipe 605 is connected protrudes at the lower part of the side surface 280c. Inside the sub tank casing 280a, a flat plate rectifying plate 284 having a large number of perforations 284a is disposed substantially parallel to the bottom surface 280d of the sub tank casing 280a. The rectifying plate 284 divides the sub-tank casing 280a into a first chamber 285 having a substantially L-shaped cross section and a second chamber 286 thereabove, and a large number of perforations 284a are formed in the first chamber 285 and the first chamber 285. The two chambers 286 are configured to communicate with each other.

In the side surface 280c of the sub tank casing 280a, a rectangular drain port 283 communicating with the outside of the sub tank casing 280a is formed in a part corresponding to the second chamber 286. And the surrounding board 287 is provided in the side 280c so that the drain outlet 283 may be enclosed. The upper and lower sides of the surrounding plate 287 are opened, and the lower part slightly protrudes from the bottom surface 280d of the sub tank casing 280a, and a guide water channel 288 is formed between the side plate 280c and the side surface 280c.

Subsequently, the flow of water in the sub tank 280 will be described. The water that has flowed into the sub tank casing 280 a from the inlet 281 through the inlet pipe 604 first flows into the first chamber 285. Water flows toward the outlet 282 along the substantially L-shaped shape of the first chamber 285 as indicated by the arrow F1.

When the sanitary washing device discharges water from the water discharge nozzle 241, the pump 291 connected downstream of the outlet pipe 605 is driven to pump water in the sub tank casing 280 a from the outlet 282. When the flow rate of water flowing in from the inflow port 281 is larger than the flow rate of water pumped out from the outflow port 282, the amount of water stored in the sub tank casing 280a increases, and the water level rises.

When the water level of the water stored in the sub tank casing 280a rises, the water flows into the second chamber 286 through the perforations 284a as indicated by the arrow F2.

If the water level further rises after the water flows into the second chamber 286, the water in the second chamber 286 flows out of the sub tank casing 280a from the drain outlet 283 as indicated by the arrow F3. The overflow water flowing out from the drain outlet 283 falls through the lower guide water channel 288 and flows out from the guide water channel outlet 288a.

Here, as shown in FIG. 23B, as described above, the sub tank 280 is disposed on the lower casing 220 behind the water discharge nozzle 241 and the notch 103. The overflow water flowing out from the guide water channel outlet 288a is introduced into the notch 103 and flows through the notch 103 to reach the bowl 101, whereby the notch 103 can be cleaned.

In addition, since the guide water channel outlet 288a is arranged so as to be positioned directly above the notch 103, the overflow water falling in the guide water channel 288 does not lose the falling water force to the notch 103. Will be introduced. Therefore, a high cleaning effect due to the overflow water can be expected. Further, since the surrounding plate 287 is arranged so as to partition the drain port 283 and the drive unit 151, the overflow water flowing out from the drain port 283 is prevented from scattering to the drive unit 151 side. That is, the overflow water does not cause a failure on the water discharge nozzle 241 or the drive unit 151 side.

Thus, in this embodiment, the sub-tank 280, which is a so-called open tank, is disposed in the water channel, and the notch 103 of the toilet 100 is cleaned by the overflow water flowing out from the water channel. That is, a device has been devised in which overflow water flowing out of an open tank that prevents backflow is effectively used for cleaning a notch portion of a toilet that is easily soiled.

Note that the cleaning of the notch 103 with the overflow water of the sub tank 280 can be performed regardless of whether the sanitary washing device is discharging water from the water discharge nozzle 241 or not. That is, when water is discharged from the water discharge nozzle 241 (that is, when the pump 291 is driven), as described above, the inflowing water with respect to the flow rate of the water pumped from the sub tank casing 280a. By allowing water to flow through the valve unit 270 so that the flow rate of the water increases, overflow water can be obtained. Further, when water is not discharged from the water discharge nozzle 241 (that is, when the pump 291 is not driven), water is not pumped out from the sub tank casing 280a. Thus, the water level stored in the sub tank casing 280a can be raised to obtain overflow water. Therefore, the amount of overflow water for cleaning the notch 103 can be adjusted as appropriate by adjusting the time for passing water through the valve unit 270.

Hereinafter, modifications of the embodiment of the present invention will be described with reference to the drawings. The same elements as those in the embodiment described above with reference to FIGS. 23 to 25 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
FIG. 26 is a schematic diagram illustrating the water discharge nozzle 241 disposed in the notch 103 of the toilet apparatus according to the modification of the present embodiment.

In the modification of the present embodiment, a recessed portion (hereinafter, also referred to as a “lower casing groove portion”) 223 is formed in the lower casing 220 so as to be inserted into the cutout portion 103 in accordance with the shape thereof. The lower casing groove 223 covers and protects the lower side of the water discharge nozzle 241. That is, when the sanitary washing device is removed from the toilet 100 and transported, the sanitary washing device is accidentally dropped. Or the water discharge nozzle 241 is prevented from being damaged.

An elastic body (hereinafter also referred to as “packing”) 107 is disposed between the lower casing groove portion 223 and the notch portion 103, and watertightness therebetween is maintained. However, when such a lower casing groove portion 223 is formed in the lower casing 220, sewage splashes in the bowl portion 101 while water is discharged from the water discharge nozzle 241, or the drainage clogging of the toilet 100 occurs and the bowl portion 101 When the water level rises, sewage may enter the lower casing groove 223 from the opening 103b. When dirty water infiltrates and the lower casing groove 223 is soiled, it is not easy to perform manual cleaning by the user because of the deep shape.

Therefore, in the toilet apparatus according to the modification of the present embodiment, the sub tank 280 for preventing the back flow of water is disposed behind the water discharge nozzle 241 and the lower casing groove 223, and the overflow water flowing out from the sub tank 280 is discharged to the lower casing. It is configured to be introduced into the groove portion 223. That is, the lower casing groove 223 is cleaned by the overflow water flowing out from the sub tank 280. The overflow water that has been washed by flowing through the lower casing groove portion 223 flows into the bowl portion 101 from the opening 103b and falls together with the water in the bowl portion 101 when the toilet 100 is drained.

Next, another modification of the embodiment of the present invention will be described with reference to the drawings. The same elements as those in the embodiment described above with reference to FIGS. 23 to 26 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
FIG. 27A is a schematic diagram showing the arrangement of the sub tank 680 on the case plate 620 of a toilet apparatus according to another modification of the present embodiment, and FIG. 27B shows the flow of water flowing out of the sub tank 680. It is a schematic diagram shown.
FIG. 28 is a schematic diagram showing the shape of a sub tank 680 used in a toilet apparatus according to another modification of the present embodiment and the flow of water.

First, as shown in FIG. 27, similarly to the embodiment described above with reference to FIG. 26, the case plate (hereinafter also referred to as “lower casing”) 620 has a recessed portion (hereinafter also referred to as “lower casing groove”) 623. The lower casing groove 623 is cleaned by overflow water that is recessed and overflows from the sub tank 680. In the modification of the present embodiment, the sub tank 680 is disposed on the side of the lower casing groove 623 (and the water discharge nozzle 241 (not shown)). When the sub tank 680 cannot be arranged behind the lower casing groove 623 (and the water discharge nozzle 241) due to the depth size of the toilet 100, even if overflow water is introduced from the sub tank 680 arranged on the side as described above, The casing groove 623 can be cleaned.

Hereinafter, the configuration of the sub tank 680 will be described with reference to FIG.
28A is a perspective view of the sub tank 680, FIG. 28B is a plan view of the sub tank 680, FIG. 28C is a front view of the sub tank 680, and FIG. 28D is a right side view of the sub tank 680. FIG. 28 (e) shows a cross-sectional view of the sub tank 680 along the line KK.
The sub tank 680 has a sub tank casing 680a that forms an outer shell thereof, and a space capable of storing water is formed in the sub tank casing 680a. An inlet 681 into which water supplied from the inlet pipe 604 flows is opened on the upper surface 680b of the sub tank casing 680a. Further, an outlet 682 to which the outlet pipe 605 is connected protrudes from the lower surface 680d. A partition 684 is provided inside the sub tank casing 680a, and is partitioned into an upper space 685 and a lower space 686.

A rectangular drainage port 683 communicating with the outside of the subtank casing 680a is provided in a part of the side surface 680c of the subtank casing 680a corresponding to the upper space 685. A flange 687 protrudes from the side surface 680 c along the periphery of the drain port 683.

Subsequently, the flow of water in the sub tank 680 will be described. The water flowing through the inlet pipe 604 and flowing into the sub tank casing 680a from the inlet 681 as shown by the arrow F4 collides with the partition wall 684, and its water force is weakened. The partition wall 684 is curved immediately below the inflow port 681 and is slightly inclined toward the tip, so that the inflowing water flows along the shape from the upper space 685 to the lower space 686 as indicated by the arrow F5. Flowing.

When the sanitary washing device discharges water from the water discharge nozzle, the pump 291 connected downstream of the outlet pipe 605 is driven, so that water in the sub-tank casing 680a is pumped out from the outlet 682 as indicated by an arrow F6. . When the flow rate of water flowing in from the inflow port 681 is larger than the flow rate of water pumped out from the outflow port 682, the amount of water stored in the sub tank casing 680a increases, and the water level rises.

When the water level in the sub tank casing 680a rises, the water flows out of the sub tank casing 680a from the drain port 683 as shown by an arrow F7 (overflow). The overflow water flowing out from the drainage port 683 falls and is introduced into the lower casing groove 623 below.

As described above, also in the present modification in which the sub tank 680 is disposed on the side of the lower casing groove 623, the lower casing groove 623 can be cleaned with overflow water. Further, the overflow water flowing out from the drain port 683 falls downward at a position slightly away from the side surface 680c by the flange portion 687 protruding along the periphery of the drain port 683. Therefore, even when the side surface 680c of the sub tank casing 680a has to be provided at a position away from the side end of the lower casing groove 623, the overflow water can be introduced into the lower casing groove 623 by the flange portion 687.

Next, a toilet apparatus according to still another embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the flow of overflow water or the like drained by the recessed portion 223 of the casing 200 will be mainly described.
FIG. 29 is a schematic plan view of a case plate according to still another embodiment of the present invention as viewed from above.
As described above, with respect to the flow rate of water flowing into the tank (hereinafter also referred to as “open tank”) 280 from the inflow port 281, the flow rate of water that is pumped by the cleaning pump 291 and flows out from the outflow port 282 is If the water level is relatively small, the water level stored in the open tank 280 rises and flows out from the drain port (hereinafter also referred to as “overflow port”) 283 as surplus water as indicated by an arrow OF. . As will be described later in detail, this excess water is discharged into the bowl 101 of the toilet 100 and discharged together with the water in the bowl 101 when the toilet 100 is drained.

The water discharged into the bowl 101 is not only the excess water from the overflow port 283. For example, water in which the water outlet 243 is cleaned (pre-cleaned) before the cleaning nozzle 241 is advanced from the casing 200, water in which the water outlet 243 is cleaned (post-cleaned) after the cleaning nozzle 241 is stored in the casing 200, etc. It is discharged into the bowl 101 of the toilet 100. Further, water that has washed the body (body washing) when the washing nozzle 241 advances and retreats is also discharged into the bowl 101 of the toilet 100. Furthermore, dew condensation water generated from the functional member of the local cleaning function unit built in the casing 200 is also discharged into the bowl 101 of the toilet 100. As described above, the water generated in the casing 200 and discharged into the bowl 101 of the toilet 100 is referred to as “drainage” in the present specification.

The case plate 220 has a recessed portion 223 formed in a concave shape downward as shown in FIG. The recessed portion 223 is provided in a part of the case plate 220 and is inclined so as to become lower from the rear end portion 223a toward the opening portion (hereinafter also referred to as “front end portion”) 223b. On the other hand, the toilet 100 has the recessed part 103 formed in concave shape toward the downward direction in the upper surface 105, as represented to FIG. The recess 103 is formed so as to communicate with the bowl 101, and is inclined so as to become lower from the rear end portion 103a toward the front end portion 103b, similarly to the recessed portion 223 provided in the case plate 220. The case plate 220 is placed on the upper surface 105 of the toilet 100 with the recessed portion 223 stored in the recess 103 of the toilet 100.

As described above, the recessed portion 223 of the case plate 220 is formed in a concave shape downward, and is inclined so as to be lowered from the rear end portion 223a toward the front end portion 223b. Drainage from the installed equipment can be discharged into the bowl 101 as shown by the arrows in FIG. That is, the recessed portion 223 functions as a drainage channel that discharges drainage from the device installed in the casing 200 into the bowl 101.

The recessed portion 223 is provided with an outflow water force suppression plate (projection wall) 224 that suppresses the water flow of the drainage discharged from the inside of the casing 200 to the outside. That is, the protruding wall 224 can weaken the water flow of the drainage that flows from the rear end 223a side of the recessed portion 223 toward the front end portion 223b. In addition, the front end 223b of the recessed portion 223 is provided with a notch 225 formed so as to recede toward the rear end 223a. The protruding wall 224 may have a plate shape that does not allow water to pass therethrough, or may have a slit shape, a net shape, or a porous shape that restricts the amount of water passing through the protruding wall 224.

The drainage from the equipment installed in the casing 200 flows toward the front end 223b of the recessed portion 223 and collides with the protruding wall 224. Subsequently, the drainage that collided with the projecting wall 224 passes through both sides of the projecting wall 224 while the water flow is suppressed as shown by the arrows in FIG. The water that has passed through both sides of the protruding wall 224 is discharged into the bowl 101 through the notch 225 while the water force is suppressed.

According to this, since the waste water from the equipment installed in the casing 200 is discharged into the bowl 101 in a state where the water force is suppressed, it is discharged to the stored water 110 along the inner wall surface of the bowl 101. Therefore, the toilet apparatus according to the present embodiment can prevent the wastewater from directly falling into the stored water 110 and splashing even when the flow rate of the wastewater is large. In addition, since the drainage is discharged to the accumulated water 110 along the inner wall surface of the bowl 101, the toilet apparatus according to the present embodiment can suppress water splashing on the inner wall surface of the bowl 101. In the specification of the present application, “water splashing” includes not only water splashing due to the accumulated water 110 but also water splashing caused by the inner wall surface of the bowl 101.

It should be noted that at least a part of the cleaning nozzle 241 that moves in and out of the bowl 101 is disposed in the recessed portion 223. The nozzle unit having the cleaning nozzle 241 is supported by a support portion 223 d provided in the recessed portion 223.

Next, the vicinity of the front end 223b of the recessed portion 223 will be described in more detail.
FIG. 30 is a schematic diagram showing the vicinity of the front end portion of the recessed portion of the case plate. 30A is a schematic cross-sectional view of the vicinity of the front end of the recessed portion of the case plate as viewed from the side, and corresponds to the LL cross-sectional view shown in FIG. FIG. 30B is a schematic cross-sectional view of the vicinity of the front end portion of the recessed portion of the case plate as viewed from above, and corresponds to the MM cross-sectional view shown in FIG.
FIG. 31 is a schematic cross-sectional view of the toilet device according to this embodiment as viewed from the side. FIG. 31 corresponds to the AA cross-sectional view shown in FIG.

29, as described above with respect to FIG. 29, the recessed portion 223 is provided with a protruding wall 224 that suppresses the water flow of the drainage discharged from the inside of the casing 200 to the outside. As shown in FIG. 30B, the protruding wall 224 is formed so that the thickness at both ends is slightly thinner than the thickness at the center. That is, the rear surface 224a of the protruding wall 224 is slightly inclined so that both end portions are positioned forward than the center portion. Therefore, the drainage from the device installed in the casing 200 smoothly flows toward both ends of the protruding wall 224 without getting over the protruding wall 224 after colliding with the protruding wall 224. At this time, the water flow is suppressed by the protruding wall 224.

Subsequently, the drainage that has passed through both sides of the protruding wall 224 flows toward the notch 225. Here, since the protruding wall 224 is provided in the vicinity of the front end 223b, that is, in the vicinity of the notch 225, the drainage flows toward the notch 225 in a state where the water force is suppressed. On the other hand, when the protruding wall 224 is provided in the vicinity of the rear end portion 223a, even if the water flow of the drainage is suppressed by the protruding wall 224, the drainage reaches again to the notch 225 again. May increase. Therefore, the protruding wall 224 is more preferably provided in the vicinity of the front end 223b, that is, in the vicinity of the notch 225.

Further, since the recessed portion 223 is inclined so as to become lower from the rear end portion 223a toward the front end portion 223b, the drainage flows toward the notch portion 225 without staying in the vicinity of the protruding wall 224. . Then, the drainage is discharged into the bowl 101 of the toilet 100 through the notch 225.

Here, the front end 223b of the recessed portion 223 does not protrude into the bowl 101 from the bowl inner wall surface 101a, as shown in FIG. On the other hand, the notch 225 is formed so as to recede toward the rear end 223a at the front end 223b of the recessed portion 223, as described above with reference to FIG. Therefore, the notch 225 does not protrude into the bowl 101 from the bowl inner wall surface 101a, like the front end 223b. Therefore, the waste water that has passed through the notch 225 is discharged into the bowl 101 along the inner wall surface 101a of the bowl as shown by the arrow in FIG.

In addition, a shutter 221 is attached to the case plate 220 so as to cover the front end 223b of the recessed portion 223. As described above with reference to FIG. 4, the shutter 221 is biased in a closing direction by a spring or the like. Further, the shutter 221 has a protrusion 221a that protrudes toward the recessed portion 223 in the closed state. The protrusion 221a is in contact with the front end 223b of the recessed portion 223 when the shutter 221 is closed. That is, the closing position of the shutter 221 is determined by the protrusion 221 a coming into contact with the front end 223 b of the recessed portion 223. Therefore, the lower end portion of the shutter 221 and the rear end portion 225a of the notch 225 are separated as shown in FIGS. 30 (a) and 30 (b). Therefore, even if the shutter 221 is closed, the wastewater is discharged into the bowl 101 through the notch 225.

Further, since the drainage can pass through the notch 225 even when the shutter 221 is closed, the drainage and the shutter 221 are difficult to contact. Therefore, the shutter 221 is less likely to be opened by receiving a force from the drainage in the closed state. Therefore, there is little possibility that a collision sound between the shutter 221 and the front end 223b of the recessed portion 223 is generated.

More specifically, when the drainage contacts the shutter 221 and gives a force, the shutter 221 is biased in the closing direction, and therefore, there is a possibility that the opening and closing is repeated depending on the drainage water. If the shutter 221 is repeatedly opened and closed, the contact between the projection 221a and the front end 223b is repeated, and an unpleasant sound (collision sound) may be generated each time the contact is made. On the other hand, in the toilet apparatus according to the present embodiment, there is little possibility that the drainage and the shutter 221 come into contact with each other, and therefore there is little possibility that the collision sound will be generated.

Then, the water flow is suppressed by the protruding wall 224, and the waste water that has passed through the notch 225 is discharged to the stored water 110 as sealed water through the inner wall surface 101a of the bowl as indicated by an arrow N shown in FIG. The Further, as described above, the front end 223b and the notch 225 of the recessed portion 223 do not protrude into the bowl 101 from the bowl inner wall surface 101a. Therefore, even if the bowl inner wall surface 101a in the vicinity of the front end 223b of the recessed portion 223 is provided in the vertical direction, the drainage flows along the bowl inner wall surface 101a as indicated by the arrow N shown in FIG. And discharged to the stored water 110.

According to this, even when the flow rate of the waste water is large, it is possible to prevent the waste water from directly falling into the stored water 110 and splashing. Further, since the drainage is discharged to the accumulated water 110 through the bowl inner wall surface 101a, the toilet apparatus according to the present embodiment can suppress the water splashing on the bowl inner wall surface 101a. Furthermore, since it is possible to suppress the wastewater from dropping directly into the stored water 110, it is possible to suppress the occurrence of a landing sound that occurs when the wastewater falls into the stored water 110.

On the other hand, when the protruding wall 224 is not provided in the recessed portion 223, the drainage from the device installed in the casing 200 is directly collected as indicated by the arrow O shown in FIG. There is a risk of falling into the water 110. Alternatively, the drainage from the equipment installed in the casing 200 may fall onto the bowl inner wall surface 101a without passing through the bowl inner wall surface 101a as indicated by the arrow P shown in FIG. If the drainage discharged from the recessed portion 223 falls onto the pooled water 110 or the bowl inner wall surface 101a as indicated by the arrow O or the arrow P shown in FIG. 31, there is a risk of water splashing. If the drainage splashes, it is not preferable because the splashed water may adhere to a user's buttocks or the like seated on the toilet seat. Moreover, it is not preferable that the drainage falls directly on the accumulated water 110 because a landing sound is generated.

Next, the relationship between the cleaning nozzle 241 and drainage will be described with reference to the drawings.
FIG. 32 is a schematic cross-sectional view showing the vicinity of the front end portion of the recessed portion in a state where the cleaning nozzle is housed.
FIG. 32 corresponds to the AA cross-sectional view shown in FIG.

The nozzle unit 240 of this embodiment has a cleaning nozzle 241 and a nozzle cleaning chamber 245 at one end. The nozzle cleaning chamber 245 can clean the outer peripheral surface of the cleaning nozzle 241 (body cleaning) by injecting water supplied by the switching valve 292 from a water outlet provided in the nozzle cleaning chamber 245. In addition, the nozzle cleaning chamber 245 can suppress scattering of cleaning water for cleaning the outer peripheral surface when the cleaning nozzle 241 advances and retreats. The cleaning nozzle 241 advances or retracts through the nozzle cleaning chamber 245.

At least a part of, or preferably most of, the washing water that has been subjected to body cleaning, falls as “drainage” into the recessed portion 223 of the case plate 220 from the opening 245a provided in the lower portion of the nozzle cleaning chamber 245. . At this time, as shown in FIG. 32, the opening 245a of the nozzle cleaning chamber 245 is disposed on the rear end 223a side of the protruding wall 224, so that the drainage that has passed through the opening 245a Rather, it falls to the rear end 223a side.

On the other hand, in the nozzle unit 240 of this embodiment, before the cleaning nozzle 241 advances through the nozzle cleaning chamber 245, the nozzle cleaning chamber 245 cleans the portion of the water discharge port 243 of the cleaning nozzle 241 (pre-cleaning). It can be performed. Similarly, the nozzle unit 240 performs cleaning (post-cleaning) of the portion of the water discharge port 243 of the cleaning nozzle 241 in the nozzle cleaning chamber 245 after the cleaning nozzle 241 has retracted through the nozzle cleaning chamber 245. It can be carried out.

At least a part of the cleaning water that has been subjected to the pre-cleaning and the post-cleaning in this way, or preferably most of the cleaning water, after passing through the opening 245a, like the cleaning water that has been subjected to body cleaning, from the protruding wall 224 Falls to the recessed portion 223 on the rear end 223a side.

Subsequently, drainage that has dropped to the rear end 223a side of the protruding wall 224 is suppressed in water force by the protruding wall 224. As described above with reference to FIG. 30, the waste water whose water flow is suppressed by the protruding wall 224 passes through the notch 225, travels along the bowl inner wall surface 101 a, and is discharged to the accumulated water 110. Therefore, even if the flow rate of the drainage of the wash water that has been subjected to the body cleaning, the pre-cleaning, and the post-cleaning is large, it is possible to suppress the drainage from directly falling into the stored water 110 and splashing. Moreover, since these wastewaters are discharged | emitted to the stored water 110 along the bowl inner wall surface 101a, the toilet apparatus concerning this embodiment can suppress that water splashes on the bowl inner wall surface 101a.

It should be noted that an elastic body 107 having elasticity is provided between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100 as shown in FIG. The elastic body 107 supports the front end portion 223 b of the recessed portion 223 and secures liquid tightness between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100. That is, the elastic body 107 prevents small water or the like from entering between the recessed portion 223 of the case plate 220 and the recessed portion 103 of the toilet 100. The elastic body 107 is also disposed on the upper surface 105 of the toilet bowl 100 along the front edge of the case plate 220 to ensure liquid tightness between the case plate 220 and the upper surface 105 of the toilet bowl 100. To prevent the intrusion.

FIG. 33 is a schematic cross-sectional view showing the vicinity of the front end portion of the recessed portion in a state where the cleaning nozzle has advanced from the casing.
FIG. 33 corresponds to the AA cross-sectional view shown in FIG.
As shown in FIG. 33, the cleaning nozzle 241 advances through the nozzle cleaning chamber 245 and can advance into the bowl 101 by pushing up the shutter 221. At this time, at least a part of the cleaning nozzle 241 is close to the bottom of the recessed portion 223 of the case plate 220, but since the notch 225 is provided in the front end 223b, the cleaning nozzle 241; The distance between the notch 225 and the rear end 225a is sufficiently ensured with respect to drainage.

Therefore, the drainage from the equipment installed in the casing 200 is less likely to come into contact with the cleaning nozzle 241. Furthermore, since the water flow is suppressed by the protruding wall 224 provided in the recessed portion 223, there is little possibility that the waste water jumps out of the recessed portion 223 and contacts the cleaning nozzle 241. Therefore, there is little possibility that the wastewater will fall through the cleaning nozzle 241 to the accumulated water 110 or to the bowl inner wall surface 101a. Thereby, the toilet apparatus concerning this embodiment can suppress that the waste_water | drain which passed along the washing nozzle 241 splashes in the water 110 and the bowl inner wall surface 101a.

On the other hand, when the projecting wall 224 and the notch 225 are not provided in the recessed portion 223, the drainage may come into contact with the cleaning nozzle 241. There is a possibility that the waste water that has contacted the cleaning nozzle 241 may be transmitted to the tip end side (water discharge port 243 side) of the cleaning nozzle 241. Since the distal end portion of the cleaning nozzle 241 in the advanced state is disposed on the upper side of the stored water 110, the wastewater that has passed through the cleaning nozzle 241 may directly fall into the stored water 110. If the drainage directly falls into the pooled water 110 and splashes, it is not preferable because the splashed water may adhere to the user's buttocks seated on the toilet seat.

Next, the timing at which “drainage” is discharged will be described with reference to the drawings.
FIG. 34 is a timing chart illustrating an example of the operation of the toilet apparatus according to the present embodiment.
Chart (A) shows a state of whether or not the seating sensor 215 detects the user's seating on the toilet seat, and chart (B) shows an open / closed state of the electromagnetic valve 274 of the water supply valve unit 270. Chart (C) represents the driving state of the cleaning pump 291, Chart (D) represents the position of the cleaning nozzle 241, and Chart (E) represents the water discharge position of the switching valve 292.

When the seating sensor 215 detects that the user is seated on the toilet seat at the timing t1 from the standby state of the toilet device, the user waits for operation mode selection by the remote controller. When the user operates the “bidet” switch at timing t <b> 2, a control unit (not shown) opens the electromagnetic valve 274 to start water supply to the open tank 280. As a result, water is stored in the open tank 280 to prepare for discharge of water from the cleaning nozzle 241. At this time, when the open tank 280 becomes full and the water level stored in the open tank 280 rises and exceeds the overflow port 283, the water is discharged from the recessed portion 223 into the bowl 101. Simultaneously with the opening of the electromagnetic valve 274, the switching valve 292 is switched to a position for discharging water from all the water discharge ports, and then the driving of the cleaning pump 291 is started a little later, and the cleaning water in the open tank 280 is cleaned. And the pre-cleaning of the water outlet 243 of the cleaning nozzle 241 is performed. The washing water at this time is discharged as drainage into the bowl 101 from the recessed portion 223 through the opening 245a of the nozzle washing chamber 245 as described above with reference to FIG. That is, the drainage is discharged between timing t2 and timing t3.

Subsequently, the control unit (not shown) switches the switching valve 292 to the body cleaning position (position where water is discharged from the water outlet of the nozzle cleaning chamber 245) at timing t3, and then drives the nozzle driving device provided in the nozzle unit 240. The cleaning nozzle 241 is advanced from the casing 200 to a position corresponding to the “bidet”. At this time, the body of the cleaning nozzle 241 is cleaned inside the nozzle cleaning chamber 245 while the cleaning nozzle 241 advances. The washing water at this time is discharged as drainage into the bowl 101 from the recessed portion 223 through the opening 245a of the nozzle washing chamber 245 as described above with reference to FIG.

Subsequently, the switching valve 292 is switched to the bidet water discharge position at the timing t4, and the flow rate (water force) of water supplied by driving the cleaning pump 291 is increased in five stages until the timing t5. Thereby, water that gradually increases the momentum is discharged from the water outlet 243 of the cleaning nozzle 241. At this time, a control unit (not shown) continuously supplies water to the open tank 280, and always keeps the open tank 280 full by discharging excess water from the overflow port 283 of the open tank 280. Therefore, drainage is also discharged between timing t4 and timing t5.

When the user operates the “stop” switch of the remote controller at timing t6, the control unit (not shown) drives the nozzle driving means after switching the switching valve 292 to the body cleaning position, and stores the cleaning nozzle 241 in the casing 200. . Also at this time, the body cleaning of the cleaning nozzle 241 is performed inside the nozzle cleaning chamber 245 while the cleaning nozzle 241 is retracted, as in the case of the body cleaning in progress. The cleaning water at this time passes through the opening 245 a of the nozzle cleaning chamber 245 and is discharged as drainage from the recessed portion 223 into the bowl 101.

When the cleaning nozzle 241 is housed in the casing 200 at timing t7, the switching valve 292 is switched to a position for discharging water from all the water outlets in the same manner as the pre-cleaning before advancement, and the portion of the water outlet 243 of the cleaning nozzle 241 After washing. The cleaning water at this time passes through the opening 245 a of the nozzle cleaning chamber 245 and is discharged as drainage from the recessed portion 223 into the bowl 101.

As described above, in the toilet apparatus according to the present embodiment, drainage is discharged from the recessed portion 223 into the bowl 101 between the timing t2 and the timing t8.

As described above, according to the present embodiment, the recessed portion 223 of the case plate 220 has the outflow water force suppression plate (projection wall) 224 that suppresses the water flow of the drainage discharged from the inside of the casing 200 to the outside. Is provided. Therefore, since the waste water from the device installed in the casing 200 is discharged into the bowl 101 in a state where the water force is suppressed, the waste water is discharged to the accumulated water 110 through the bowl inner wall surface 101a. According to this, the toilet apparatus according to the present embodiment can suppress the water splashing in the bowl 101 even when the flow rate of the waste water is large.
Further, since the notch 225 is provided in the front end 223b of the recessed portion 223, the waste water from the equipment installed in the casing 200 does not pass through the cleaning nozzle 241 but passes through the bowl inner wall surface 101a. And discharged to the stored water 110. Also by this, the toilet apparatus according to the present embodiment can suppress the drainage of water splashing in the bowl 101.

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 included in the toilet 100 and the casing 200 and the installation form of the

shutters

221 and 230 are not limited to those illustrated, and can be changed as appropriate.
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.

According to the present invention, there is provided a toilet device in which the casing attached to the upper part of the toilet is miniaturized while maintaining the function of the local cleaning device in order to improve the sitting comfort on the toilet seat.

Claims

A toilet bowl having a bowl, a recess formed on an upper surface and communicating with the bowl, and a communication portion communicating the bowl and the recess;
A casing provided on the toilet,
A toilet seat pivotally supported so as to be openable and closable with respect to the casing;
A cleaning nozzle that is at least partially disposed in the recess and advances and retreats in and out of the bowl through the communication portion;
A shutter that is pivotally supported with respect to the casing, opens the communication portion when the cleaning nozzle advances, and closes the communication portion when the cleaning nozzle moves backward,
A toilet apparatus characterized by comprising:
The toilet apparatus according to claim 1, wherein the casing includes an extending portion that extends toward the front of the bowl and that covers the upper portion of the shutter.
Either one of the casing and the shutter has a bearing portion that holds a shaft,
The other of the casing and the shutter has a shaft support portion that supports the shaft held by the bearing portion,
The toilet apparatus according to claim 2, wherein the bearing portion and the shaft support portion are provided below the extending portion and covered upward by the extending portion.
The toilet device according to claim 2 or 3, wherein the toilet further includes a concave step connected to an inner wall surface of the bowl.
The toilet apparatus according to claim 2 or 3, wherein the shutter has a protruding wall extending toward the communication part on a back surface facing the communication part.
A hot air drying device having a hot air duct provided at a tip thereof, a hot air blower fan communicating with the hot air duct, and a heater disposed in the hot air duct;
The recess is provided at a central rear portion of the toilet rim;
The hot air duct extends from the side of the cleaning nozzle housed in the recess to the bowl through the upper portion of the cleaning nozzle inside the casing,
The toilet apparatus according to claim 1, wherein the spout is provided closer to the bowl than the cleaning nozzle in a state of being housed in the recess.
The toilet device according to claim 6, wherein at least a part of the hot air blowing fan is disposed below the upper surface of the toilet.
A deodorizing device having a deodorizing duct having a suction port provided near the tip, a deodorizing fan, and a deodorizing catalyst;
The suction port is provided apart from the jet port of the hot air drying device,
The toilet device according to claim 6, wherein the deodorizing duct is provided so as not to overlap with the warm air duct in the vertical direction in the vicinity of the suction port.
An open tank connected to a water supply path to the cleaning nozzle and capable of allowing water to flow inside,
An inlet for allowing water to flow into the open tank;
An outlet for allowing water inside the open tank to flow out to the washing nozzle;
A drain outlet for discharging overflow water from the inside of the open tank;
Further comprising an open tank with
The toilet apparatus according to claim 1, wherein the overflow water flowing out from a drain port of the open tank is introduced into the recess.
An open tank connected to a water supply path to the cleaning nozzle and capable of allowing water to flow inside,
An inlet for allowing water to flow into the open tank;
An outlet for allowing water inside the open tank to flow out to the washing nozzle;
A drain outlet for discharging overflow water from the inside of the open tank;
Further comprising an open tank with
The casing has a recessed portion that covers a lower portion of the cleaning nozzle and is inserted into the recessed portion,
The toilet apparatus according to claim 1, wherein the overflow water flowing out from the drain port of the open tank is introduced into the recessed portion.
The casing has a case plate having a recessed portion formed in a concave shape downward.
The concave portion is housed in a concave portion of the toilet bowl, and has a protruding wall that discharges waste water from the device installed on the case plate into the bowl and suppresses the water flow of the waste water. Item 1. The toilet device according to Item 1.
The toilet device according to claim 11, wherein a front end of the recessed portion does not protrude from an inner wall surface of the bowl.
The recessed portion is inclined so as to become lower from the rear end portion toward the front end portion,
The toilet apparatus according to claim 11 or 12, wherein the protruding wall is installed in the vicinity of the front end.
The toilet device according to claim 11 or 12, wherein the recessed portion further includes a notch formed in the front end portion.