JP2010024780A - Toilet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet device which can clean a notched portion while improving a user's sitting feeling on a toilet seat. <P>SOLUTION: The toilet device comprises: a stool provided with the notched portion having an opening facing a bowl; a casing disposed over the stool and accommodating at least part of a spout nozzle to advance into the bowl through the opening; a seat hinged to open and close freely with respect to the casing; and an open-type tank connected to the water supply channel to the spout nozzle for supplying water to the interior of the spout nozzle. The open-type tank comprises: an inlet allowing water to flow into the open-type tank; an outlet allowing the water in the open-type tank to flow to the spout nozzle; and a discharge port for discharging the water overflowed from the interior of the open-type tank. Characteristically, the water overflowed from the discharging port of the open-type tank is introduced into the notched portion. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  Aspects of the present invention generally relate to a toilet apparatus, and more specifically, to a toilet apparatus that can wash a user's “buttock” or the like sitting on a sitting toilet with water.

There is a toilet apparatus that stores a water discharge nozzle that jets cleaning water so that it can freely move forward and backward, and has a function of cleaning a user's “butt” sitting on the toilet seat of a sitting toilet. When the casing containing the water discharge nozzle is provided on the upper surface of the seated toilet, the rotation shaft of the toilet seat is disposed on the relatively front side of the casing. However, with such a configuration, the rear part of the toilet seat rides on the casing and tilts upward. There was a case that gave a slightly narrow impression.
In order to improve the comfort of the toilet seat, it is one idea to keep the height of the casing low. In relation to this, a locally-washed toilet is disclosed in which a recessed groove portion having a downward slope toward the toilet bowl space is provided on the upper surface of the rear portion of the sitting toilet, and a part of the water discharge nozzle (washing nozzle) is accommodated in the recessed groove portion. (Patent Document 1).
No. 2-313589

  However, in the locally-washed toilet disclosed in Patent Document 1, when a user uses a sitting toilet, sewage splashes in the toilet bowl, or the drainage is clogged and the water level in the toilet bowl rises. In addition, there is a risk that sewage may enter the concave groove and be damaged. When the groove portion is soiled, it is not easy to perform manual cleaning by the user because of the deep shape, and cleaning must be performed by removing the casing.

  The present invention has been made based on recognition of such a problem, and an object of the present invention is to provide a toilet device that can maintain a clean state while improving the sitting comfort of a toilet seat.

  In order to solve the above-described problems, a toilet apparatus according to the present invention includes a sitting toilet provided with a notch portion having an opening facing the bowl portion, the bowl portion provided on the sitting toilet, and the bowl portion through the opening. A casing housing at least a part of the water discharge nozzle that is allowed to advance into the toilet, a toilet seat that is pivotally supported with respect to the casing, and a water supply passage to the water discharge nozzle. An open-type tank capable of allowing water to flow, an inflow port for allowing water to flow into the open-type tank, an outflow port for flowing water inside the open-type tank to the water discharge nozzle, and the open-type tank An open tank having an outlet for allowing overflow water to flow out from the inside of the tank, and the overflow water flowing out from the drain of the open tank is introduced into the notch. The features.

  According to the present invention, even if sewage enters the notch and may be damaged, the overflow can be washed by introducing the overflow water flowing out from the drain of the open tank into the notch. it can. That is, while improving the seating comfort of the toilet seat, the invention has been devised to maintain a clean state by effectively using the overflow water of the open tank for cleaning the notch.

  In a preferred embodiment of the present invention, the drain of the open tank is disposed above the notch, and the overflow water that has flowed out of the drain directly drops into the notch.

  According to the present invention, since the overflow water flowing out from the drain port is directly dropped and introduced into the cutout portion, a high cleaning effect can be obtained by the strong water flow generated by the fall. Here, “direct fall” means that the overflow water that has flowed out of the drainage port can reach the notch below the drainage port without being blocked by anything vertically thereafter. .

  In order to solve the above-described problems, a toilet apparatus according to the present invention includes a sitting toilet provided with a notch portion having an opening facing the bowl portion, the bowl portion provided on the sitting toilet, and the bowl portion through the opening. A casing having at least a part of a water discharge nozzle that can be advanced to the housing, having a groove portion that covers a lower portion of the water discharge nozzle and is inserted into the notch portion, and is pivotally supported with respect to the casing. A toilet seat, an open tank connected to a water supply path to the water discharge nozzle, and capable of allowing water to flow inside, an inflow port for allowing water to flow into the open tank, and the open type An open tank having an outflow port through which water inside the tank flows out to the water discharge nozzle, and a drain outlet through which overflow water from the inside of the open type tank flows out, and the open tank The overflow water flowing out from the drain port, characterized in that it is introduced into the groove.

  By covering the lower part of the water discharge nozzle with the groove provided in the casing, the water discharge nozzle can be prevented from being damaged when the casing is removed from the sitting toilet and transported. However, since the groove portion is inserted into the notch portion, there is a possibility that dirty water may enter the groove portion and be damaged.

  According to the present invention, the groove portion can be cleaned by introducing the overflow water flowing out from the drain of the open tank into the groove portion. In other words, while improving the seating comfort of the toilet seat and further protecting the water discharge nozzle, it was devised to maintain a clean state by effectively using the overflow water of the open tank for cleaning the groove part. is there.

  In a preferred embodiment of the present invention, the drain of the open tank is disposed above the groove, and the overflow water that has flowed out of the drain falls directly into the groove.

  According to the present invention, since the overflow water flowing out from the drain port is directly dropped and introduced into the groove portion, a high cleaning effect can be obtained by a strong water flow generated by the fall. Here, “direct fall” means a state in which overflow water that has flowed out and dropped from the drain port can reach the groove below the drain port without being blocked by anything in the vertical direction.

  ADVANTAGE OF THE INVENTION According to this invention, the toilet apparatus which can wash | clean a notch part can be provided, improving the seating comfort of a toilet seat.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1A is an external view of the toilet apparatus 10 according to the present embodiment, and shows a state in which the toilet seat 110 and the toilet lid 120 are raised. FIG. 1B is an external view of a sitting toilet 200 (hereinafter simply referred to as “toilet bowl 200”) used in the toilet apparatus 10.

  The toilet device 10 according to the present embodiment includes a toilet 200 and a sanitary washing device 100 placed on the upper surface of the toilet 200. The sanitary washing device 100 includes a toilet seat 110 and a toilet lid 120 that are pivotally supported. A sanitary cleaning function unit for realizing sanitary cleaning is built in the casing 130 forming the outer shell of the sanitary cleaning apparatus 100. That is, in the state where the toilet seat 110 is in contact with the rim surface 210 of the toilet bowl 200, it is detected by a seating sensor (not shown) that the user is seated on the toilet seat 110, and according to the user's switch operation or the like, the water discharge nozzle 140 Is advanced to the bowl portion 220 of the toilet bowl 200, and water is jetted from a water outlet provided near the tip of the toilet bowl 200, so that the user's “butt” seated on the toilet seat 110 can be washed. In the present specification, the term “water” includes not only cold water but also heated hot water.

  Further, a side recess 230 that is recessed inward is formed at the rear side of the toilet bowl 200. In the side recess 230, a “warm air drying unit” that blows hot air on a “buttock” of a user who is seated on the toilet seat 200 and the like, and air in the bowl portion 220 is sucked to remove odor components. Various mechanisms such as a “deodorizing unit” for removing and an “indoor heating unit” for blowing warm air around to heat the toilet space may be provided as appropriate. Further, an “automatic water washing unit” that allows washing water to flow into the bowl portion 220 of the toilet bowl 200 may be provided in the side recess 230. This is a unit for automatically flowing flush water through the toilet bowl 200 by operating a valve for supplying flush water to the toilet bowl 200. By providing these units in the side recess 230, the sanitary washing device 100 placed on the upper surface of the toilet bowl 200 can be made compact. In addition, since the side recessed part 230 is covered with the side panel 240, the designability is also securable.

  In the present embodiment, a notch 250 is formed on the rim surface 210 of the toilet bowl 200. More specifically, the upper surface of the toilet bowl 200 is formed so as to be substantially flush with the rim surface 210, and the notch portion 250 is notched downward at a position corresponding to the rear end of the bowl portion 220 of the rim surface 210. It has a hollow shape. The notch 250 is located below the sanitary washing device 100 and communicates with the bowl 220 through the opening 251. The bottom surface of the notch 250 is inclined downward from the rear of the toilet bowl 200 to the opening 251. As will be described later, the water discharge nozzle 140 of the sanitary washing device 100 is disposed in the notch portion 250, and the water discharge nozzle 140 can be advanced and retracted from the opening 251 to the bowl portion 220.

  FIG. 2A is a perspective view illustrating the internal configuration of the sanitary washing device 100, and FIG. 2B is a schematic diagram illustrating the water discharge nozzle 140 disposed in the notch 250.

  The casing 130 of the sanitary washing device 100 includes an upper casing 131 that pivotally supports the toilet seat 110 and the toilet lid 120, and a plate-like lower casing 132 that is covered with the upper casing 131 and contacts the upper surface of the toilet bowl 200. is doing. In addition to the water discharge nozzle 140, the lower casing 132 is attached with various elements necessary for performing sanitary washing, such as a drive unit 151 that moves the water discharge nozzle 140 forward and backward with respect to the bowl portion 220 and the sub tank 300. Further, a shutter 152 that covers the opening 251 of the notch 250 is pivotally supported on the lower casing 132. The shutter 152 covers the opening 251 in a state where the water discharge nozzle 140 is housed in the sanitary washing device 100, but when water is discharged from the water discharge nozzle 140, the shutter 152 is pushed open by the water discharge nozzle 140 that advances to the bowl portion 220. The opening 251 is opened.

  The lower casing 132 is disposed at the rear part of the toilet bowl 200, and its front edge protrudes slightly forward from the rear end of the bowl part 220. Further, the lower casing 132 is provided with a nozzle notch 133 at a position corresponding to the notch 250 of the toilet bowl 200. The water discharge nozzle 140 advances into the bowl portion 220 through the nozzle notch 133, the notch portion 250, and the opening 251 when discharging water.

  As described above, the water discharge nozzle 140 is disposed in the notch 250 formed in the toilet bowl 200, and the water discharge nozzle 140 is advanced into the bowl portion 220 through the notch 250 and the opening 251, thereby the rim of the sanitary washing device 100. The height H1 from the surface can be suppressed and the size can be reduced. In addition, the height H2 of the toilet seat 110 that is pivotally supported by the upper casing 131 of the sanitary washing device 100 can be suppressed, and the toilet seat 110 can be shaped to have a small gradient in the front-rear direction. In particular, it is possible to suppress the rear of the toilet seat 110 from tilting upward as much as possible. That is, the toilet seat 110 having a wide flat portion can be realized. As a result, the position of the toilet seat 110 is kept low, and even a small user can sit on the toilet seat 110 stably. Moreover, even a user with a large buttocks can improve the sitting comfort.

  On the other hand, in the toilet bowl 200 formed in this way, when sewage splashes in the bowl portion 220 while water is discharged from the water discharge nozzle 140, or when the drainage clogging of the toilet bowl 200 occurs and the water level of the bowl portion 220 rises. The sewage may enter the notch 250 from the opening 251. When dirty water enters and the notch 250 is damaged, it is not easy to clean manually by the user because of the deep shape.

  Therefore, the toilet apparatus 10 according to the present embodiment is configured such that the sub tank 300 is disposed behind the water discharge nozzle 140 and the notch 250, and the overflow water flowing out from the sub tank 300 is introduced into the notch 250. That is, the notch 250 is cleaned by the overflow water flowing out from the sub tank 300. The overflow water washed through the notch 250 falls into the bowl 220 through the opening 251 and flows out together with the water in the bowl 220 when the toilet 200 is drained.

Hereinafter, the cleaning of the notch 250 with overflow water and the sub tank 300 will be described in detail with reference to the drawings.
FIG. 3 is a block diagram illustrating a water channel configuration of the toilet apparatus according to the present embodiment, and FIG. 4 is a schematic diagram illustrating the shape of the sub tank 300 used in the toilet apparatus according to the present embodiment and the flow of water.

  As shown in FIG. 3, the stop cock 420 connected to the water pipe 410 and the valve unit 430 are connected by a flexible hose 411 having flexibility. The valve unit 430 includes a check valve 431 that prevents back flow of water upstream from the valve unit 430, a strainer 432 that traps foreign matter in water, a constant flow valve 433 that maintains a constant flow rate of water regardless of the supply water pressure, The electromagnetic valve 434 and the like for selectively switching the water flow / stop water downstream. Since the valve unit 430 is disposed in the side recess 230 of the toilet bowl 200, the valve unit 430 is positioned below the rim surface 210 of the toilet bowl 200.

  The water that has passed through the electromagnetic valve 434 is sent upward from the rim surface 210 by the inlet pipe 412 and supplied to the sub tank 300 disposed on the lower casing 132. The sub tank 300 is provided with an inflow port 310 for introducing water into the upper side and an outflow port 320 for discharging water from the inside at the lower side. Further, a drain outlet 330 for allowing overflow water to flow out is provided on the side surface of the sub tank 300. Therefore, even if a reverse flow of water from the outlet 320 to the inside of the sub tank 300 occurs and the water level of the water stored in the sub tank 300 rises, the water flows out from the drain outlet 330 as overflow water and flows into the inlet 310. Therefore, the backflow of water to the solenoid valve 434 can be prevented.

  Next, the flow of water flowing out from the outlet 320 of the sub tank 300 will be described. A pump 440 is connected downstream of the outlet pipe 413 connected to the outlet 320. The pump 440 pumps the water in the sub-tank 300 from the outlet 320, energizes it, sends it downstream, and allows adjustment of the flow rate (water force).

  A heat exchanger 450 is provided downstream of the pump 440. The heat exchanger 450 includes a heating source such as a sheathed heater, for example, and heats the water sent from the upstream pump 440. The heat exchanger 450 may be a so-called instantaneous type or a hot water storage type. However, the heat exchanger 450 will be described as an instantaneous type hereinafter.

  Downstream of the heat exchanger 450, a switching valve 460, a water discharge nozzle 140, and a nozzle cleaning channel 414 are provided. The water that has passed through the heat exchanger 450 is selectively switched to the water discharge nozzle 140 or the nozzle cleaning flow path 414 by the switching valve 460. When the user seated on the toilet seat 110 selects “wet” washing with a remote controller (not shown), the heat exchanger 450 heats the water, and the switching valve 460 sends the water to the water discharge nozzle 140. Switch as follows. Thereby, warm water is discharged from the water discharge nozzle 140, and the user can perform cleaning of “wet”. The water temperature and temperature of the hot water discharged from the water discharge nozzle 140 can be changed according to the user's preference, and the user adjusts the driving state of the pump 440 and the heating amount of the heat exchanger 450 by a remote controller or the like. .

  In addition, it is possible to clean the water discharge nozzle 140 itself after cleaning the “bottom” or when the user gives an instruction by operating the remote control. In this case, the switching valve 460 switches so that water is sent to the nozzle cleaning flow path 414 without heating the water by the heat exchanger 450. The water sent to the nozzle cleaning flow path 414 is discharged toward the water discharge nozzle 140, whereby the water discharge nozzle 140 is cleaned.

  On the other hand, if the flow rate of water pumped out by the pump 440 and flowing out from the outlet port 320 is smaller than the flow rate of water flowing into the sub tank 300 from the inlet port 310, the inside of the sub tank 300 is indicated by an arrow OF from the drain port 330. Water flows out (overflow water). This overflow water is introduced into the notch 250 of the toilet bowl 200 and flows through the notch 250 toward the bowl 220, whereby the notch 250 is cleaned. The overflow water washed through the notch 250 falls into the bowl 220 through the opening 251 and flows out together with the water in the bowl 220 when the toilet 200 is drained.

  Next, the shape of the sub tank 300 will be described with reference to FIG. 4A is a perspective view of the sub-tank 300, FIG. 4B is a plan view of the sub-tank 300, FIG. 4C is a cross-sectional view along the line AA of the sub-tank 300, and FIG. BB sectional drawing of is represented. The sub-tank 300 has a sub-tank casing 301 that forms an outer shell, and a space capable of storing water is formed inside the sub-tank casing 301. An inlet 310 to which the inlet pipe 412 is connected is provided on the upper surface 302 of the sub tank casing 301, and an outlet 320 to which the outlet pipe 413 is connected protrudes at the lower part of the side surface 303. Inside the sub tank casing 301, a flat plate rectifying plate 340 having a large number of perforations 341 is disposed substantially parallel to the bottom surface 304 of the sub tank casing 301. The current plate 340 divides the subtank casing 301 into a first chamber 350 having a substantially L-shaped cross section and a second chamber 360 thereabove, and a large number of perforations 341 are formed in the first chamber 350 and the first chamber 350. The two chambers 360 are configured to communicate with each other.

  In a part of the side surface 303 of the sub tank casing 301 corresponding to the second chamber 360, a rectangular drainage port 330 communicating with the outside of the sub tank casing 301 is opened. A surrounding plate 370 is provided on the side surface 303 so as to surround the drain outlet 330. The upper and lower sides of the surrounding plate 370 are opened, and the lower portion slightly protrudes from the bottom plate 304 of the sub tank casing 301, and a guide water channel 380 is formed between the side plate 303 and the surrounding plate 370.

  Next, the flow of water in the sub tank 300 will be described. The water that flows into the sub tank casing 301 from the inlet 310 through the inlet pipe 412 first flows into the first chamber 350. Water flows toward the outlet 320 as shown by the arrow F1 along the substantially L-shaped shape of the first chamber 350.

  When the sanitary washing device 100 discharges water from the water discharge nozzle 140, the pump 440 connected downstream of the outlet pipe 412 is driven, so that water in the sub tank casing 301 is pumped out from the outlet 320. When the flow rate of water flowing in from the inflow port 310 is larger than the flow rate of water pumped out from the outflow port 320, the amount of water stored in the sub tank casing 301 increases, and the water level rises.

  As the water level stored in the sub tank casing 301 rises, the water flows into the second chamber 360 through the perforations 341 as indicated by the arrow F2.

  When the water level further rises after the water flows into the second chamber 360, the water in the second chamber 360 flows out of the sub tank casing 301 from the drain outlet 330 as indicated by an arrow F3. The overflow water that has flowed out from the drain outlet 330 falls through the lower guide water channel 380 and flows out from the guide water channel outlet 381.

  Here, as shown in FIG. 2B, as described above, the sub tank 300 is disposed on the lower casing 132 behind the water discharge nozzle 140 and the notch 250. The overflow water flowing out from the guide water channel outlet 381 is introduced into the notch 250 and flows through the notch 250 to reach the bowl 220, so that the notch 250 can be cleaned.

  In addition, since the guide water channel outlet 381 is arranged so as to be positioned immediately above the notch 250, the overflow water falling in the guide water channel 380 does not lose the water force of the fall to the notch 250. Will be introduced. Therefore, a high cleaning effect due to the overflow water can be expected. Further, since the surrounding plate 370 is arranged so as to partition the drain outlet 330 and the drive unit 151, it prevents the overflow water flowing out from the drain port 330 from scattering toward the drive unit 151. That is, the overflow water does not cause a failure on the water discharge nozzle 140 or the drive unit 151 side.

  As described above, in this embodiment, the sub-tank 300 that is a so-called open tank is arranged in the water channel, and the notch 250 of the toilet bowl 200 is washed 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.

  The cleaning of the notch 250 with the overflow water of the sub tank 300 can be executed regardless of whether or not the sanitary washing device 100 is discharging water from the water discharge nozzle 140. That is, when water is discharged from the water discharge nozzle 140 (that is, when the pump 440 is driven), as described above, the inflowing water with respect to the flow rate of the water pumped from the sub tank casing 301. By allowing water to flow through the valve unit 430 so as to increase the flow rate of the water, overflow water can be obtained. Further, when water is not discharged from the water discharge nozzle 140 (that is, when the pump 440 is not driven), water is not pumped out from the sub tank casing 301, so that the valve unit 430 simply allows water to flow. Thus, the water level stored in the subtank casing 301 can be raised to obtain overflow water. Therefore, the amount of overflow water for cleaning the notch 250 can be adjusted as appropriate by adjusting the time for water to flow through the valve unit 430.

Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. The same elements as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
FIG. 5 is a schematic diagram illustrating the water discharge nozzle 140 disposed in the notch 250 of the toilet apparatus 20 according to the present embodiment.

  In the present embodiment, the lower casing 132 is formed with a lower casing groove 154 that is recessed downward in accordance with the shape of the lower casing 132 so as to be inserted into the notch 250. The lower casing groove 154 covers and protects the lower portion of the water discharge nozzle 140. That is, when the sanitary washing device 100 is removed from the toilet bowl 200 and transported, the sanitary washing device 100 is prevented from being accidentally dropped and the water discharge nozzle 140 is prevented from being damaged.

  A packing 500 is disposed between the lower casing groove 154 and the notch 250, and the watertightness therebetween is maintained. However, when such a lower casing groove portion 154 is formed in the lower casing 132, sewage splashes in the bowl portion 220 while water is discharged from the water discharge nozzle 140, or the drainage clogging of the toilet bowl 200 occurs and the bowl portion 220 When the water level rises, sewage may enter the lower casing groove 154 from the opening 251. When dirty water enters and the lower casing groove 154 is damaged, the user's manual cleaning is not easy because of the deep shape.

  Therefore, in the toilet apparatus 20 according to the present embodiment, the sub tank 300 for preventing the backflow of water is disposed behind the water discharge nozzle 140 and the lower casing groove 154, and the overflow water flowing out from the sub tank 300 is discharged to the lower casing groove 154. It is configured to be introduced to. That is, the lower casing groove 154 is cleaned by the overflow water flowing out from the sub tank 300. The overflow water that has been washed by flowing through the lower casing groove portion 154 flows into the bowl portion 220 from the opening 251 and falls together with the water in the bowl portion 220 when the toilet bowl 200 is drained.

Next, a third embodiment of the present invention will be described with reference to the drawings. Note that the same elements as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
FIG. 6A is a schematic diagram showing the arrangement of the sub tank 700 on the lower casing 632 of the toilet apparatus 30 according to the present embodiment, and FIG. 6B is a schematic diagram showing the flow of water flowing out of the sub tank 700. is there. FIG. 7 is a schematic diagram showing the shape of the sub tank 700 used in the toilet apparatus 30 according to this embodiment and the flow of water.

  First, as shown in FIG. 6, similarly to the second embodiment, the lower casing groove 654 is recessed in the lower casing 632, and the lower casing groove 654 is cleaned by the overflow water flowing out from the sub tank 700. It is configured as follows. In the present embodiment, the sub tank 700 is disposed on the side of the lower casing groove 654 (and the water discharge nozzle 140 (not shown)). When the sub tank 700 cannot be disposed behind the lower casing groove portion 654 (and the water discharge nozzle 140) due to the depth size of the toilet bowl 200, even if overflow water is introduced from the sub tank 700 disposed on the side in this manner, The casing groove 654 can be cleaned.

  Hereinafter, the configuration of the sub tank 700 will be described with reference to FIG. 7A is a perspective view of the sub tank 700, FIG. 7B is a plan view of the sub tank 700, FIG. 7C is a front view of the sub tank 700, and FIG. 7D is a right side view of the sub tank 700. FIG. 7E is a cross-sectional view of the sub tank 700 taken along the line C-C. The subtank 700 has a subtank casing 701 that forms an outer shell thereof, and a space capable of storing water is formed inside the subtank casing 701. On the upper surface 702 of the sub tank casing 701, an inlet 710 into which water supplied from the inlet pipe 412 flows is opened. In addition, an outlet 720 to which the outlet pipe 413 is connected protrudes from the lower surface 704. A partition 740 is provided inside the sub tank casing 701 and is divided into an upper space 750 and a lower space 760.

  A rectangular drainage port 730 communicating with the outside of the subtank casing 701 is formed in a part of the side surface 703 of the subtank casing 701 corresponding to the upper space 750. A flange portion 731 protrudes from the side surface 703 along the periphery of the drain port 730.

  Next, the flow of water in the sub tank 700 will be described. The water flowing through the inlet pipe 412 and flowing into the sub tank casing 701 from the inlet 710 as shown by the arrow F4 collides with the partition wall 740 and the water force is weakened. The partition wall 740 is curved immediately below the inlet 412 and is slightly inclined toward the tip, so that the inflowing water flows from the upper space 750 to the lower space 760 along the shape thereof as indicated by an arrow F5. Flowing.

  When the sanitary washing device discharges water from the water discharge nozzle, the pump 440 connected downstream of the outlet pipe 413 is driven, so that water in the sub-tank casing 701 is pumped out from the outlet 720 as indicated by an arrow F6. . When the flow rate of water flowing in from the inflow port 710 is larger than the flow rate of water pumped out from the outflow port 720, the amount of water stored in the sub tank casing 701 increases, and the water level rises.

  As the water level in the sub tank casing 701 rises, the water flows out of the sub tank casing 701 from the drain port 730 as shown by an arrow F7 (overflow). The overflow water flowing out from the drain port 730 falls and is introduced into the lower casing groove 654 below.

  Thus, also in the present embodiment in which the sub tank 700 is disposed on the side of the lower casing groove 654, the lower casing groove 654 can be cleaned with overflow water. Further, the overflow water flowing out from the drain port 730 falls downward at a position slightly away from the side surface 703 by the flange portion 731 protruding along the periphery of the drain port 730. Therefore, even when the side surface 703 of the sub tank casing 701 has to be provided at a position away from the side end of the lower casing groove 654, the overflow water can be introduced into the lower casing groove 654 by the flange 731.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. That is, for each element included in the toilet device of the present invention, those skilled in the art can implement the present invention by changing the design as appropriate, and the same effect can be obtained as long as it includes the gist of the present invention. It is included in the scope of the present invention.

It is an external view of the toilet apparatus 10 which concerns on the 1st Embodiment of this invention, and the toilet bowl 200 used for it. 2 is a perspective view illustrating the internal configuration of the sanitary washing device 100 and a schematic diagram illustrating a water discharge nozzle 140 disposed in a notch 250. FIG. It is a block diagram which shows the water channel structure of the toilet apparatus 10 which concerns on the 1st Embodiment of this invention. It is a schematic diagram which shows the shape of the subtank 300 used by the toilet apparatus 10 which concerns on the 1st Embodiment of this invention, and the flow of water. It is a schematic diagram showing the water discharge nozzle 140 arrange | positioned at the notch part 250 of the toilet apparatus 20 which concerns on the 2nd Embodiment of this invention. FIG. 10 is a schematic diagram showing an arrangement of a sub tank 700 on a lower casing 632 and a schematic diagram showing a flow of water flowing out of the sub tank 700 in a toilet apparatus 30 according to a third embodiment of the present invention. It is a schematic diagram which shows the shape of the subtank 700 used by the toilet apparatus 30 which concerns on the 3rd Embodiment of this invention, and the flow of water.

Explanation of symbols

10, 20, 30 Toilet device, 100 Sanitary washing device, 110 Toilet seat, 120 Toilet lid, 130 Casing, 131 Upper casing, 132, 632 Lower casing, 140 Water discharge nozzle, 200 (stool) toilet, 210 Rim surface, 220 Bowl part , 230 Side recess, 240 Side panel, 250 Notch, 251 Opening, 310, 710 Inlet, 320, 720 Outlet, 330, 730 Drain, 340 Rectifier plate, 350 First chamber, 360 Second chamber, 370 Surrounding Plate, 380 Guide water channel, 410 Water pipe, 420 Stop cock, 430 Valve unit, 440 Pump, 450 Heat exchanger, 460 Switching valve, 500 Packing, 654 Lower casing groove, 740 Bulkhead, 750 Upper space, 760 Lower space

Claims (4)

A sitting toilet provided with a notch having an opening facing the bowl, and
A casing that is provided on the sitting toilet and houses at least a part of a water discharge nozzle that can be advanced into the bowl portion through the opening;
A toilet seat pivotally supported with respect to the casing;
An open tank connected to the water supply passage to the water discharge nozzle and capable of allowing water to flow inside,
An inlet for allowing water to flow into the open tank;
An outlet for allowing the water inside the open tank to flow out to the water discharge nozzle;
A drain outlet for discharging overflow water from the inside of the open tank;
An open tank with
With
The toilet apparatus, wherein the overflow water flowing out from the drain of the open tank is introduced into the notch.   2. The toilet apparatus according to claim 1, wherein a drain port of the open tank is disposed above the notch, and overflow water flowing out of the drain port falls directly to the notch. A sitting toilet provided with a notch having an opening facing the bowl, and
A groove portion that is provided on the sitting toilet and accommodates at least a part of a water discharge nozzle that can be advanced to the bowl portion through the opening, covers a lower portion of the water discharge nozzle, and is inserted into the notch portion. A casing having,
A toilet seat pivotally supported with respect to the casing;
An open tank connected to the water supply passage to the water discharge nozzle and capable of allowing water to flow inside,
An inlet for allowing water to flow into the open tank;
An outlet for allowing the water inside the open tank to flow out to the water discharge nozzle;
A drain outlet for discharging overflow water from the inside of the open tank;
An open tank with
With
The toilet apparatus, wherein the overflow water flowing out from the drain of the open tank is introduced into the groove.   The toilet apparatus according to claim 3, wherein a drain port of the open tank is disposed above the groove portion, and overflow water that has flowed out of the drain port falls directly into the groove portion.

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