JP7306038B2 - sanitary washing equipment - Google Patents

Description

Aspects of the present invention relate generally to sanitary washing devices.

A hot water storage type sanitary washing device that stores hot water for washing in a hot water storage tank is known (for example, Patent Document 1). In recent years, in sanitary washing apparatuses, not only performance but also design tends to be emphasized, and for this reason, there is a tendency to desire compactness.

In a hot water storage type sanitary washing device, the hot water storage tank occupies a relatively large volume, and in order to make the whole device compact, it is necessary to devise the shape of the hot water storage tank. However, if the hot water storage tank has a complicated shape for compactness, it becomes difficult for convection to occur in the hot water storage tank, and there is a possibility that the hot water boiling efficiency will decrease. In this way, the shape of the hot water storage tank has left room for consideration in realizing compactness.

Therefore, in the hot water storage type sanitary washing device, it is desired to make the entire device compact while suppressing a decrease in hot water boiling efficiency.

Japanese Patent Application Laid-Open No. 2017-2700

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sanitary washing device that can reduce the size of the entire device while suppressing a decrease in hot water boiling efficiency.

A first invention has a hot water storage tank having a space for storing hot water therein, a casing for housing the hot water storage tank, and a first rotating shaft provided in the casing and extending in the left-right direction, and is attached to the casing. a first shaft supporting portion that rotatably supports one of the toilet seat and the toilet lid about the first rotating shaft; The sanitary washing device is characterized in that it has a recess that is continuously recessed downward from an end to a rear end, and at least a portion of the first shaft supporting portion is arranged in the recess.

According to this sanitary washing device, the concave portion is provided in the upper portion of one end side in the left-right direction of the hot water storage tank, and at least a portion of the first shaft support portion is arranged in the concave portion. As a result, the hot water storage tank and the first shaft support can be efficiently arranged with respect to the casing, and the overall device can be made compact. In addition, since the recess is formed in the upper portion of one end of the hot water storage tank in the left-right direction, convection along the recess is generated, and the water in the hot water storage tank can be warmed more quickly. Therefore, it is possible to provide a sanitary washing device that can be made compact as a whole while suppressing a decrease in hot water boiling efficiency.

According to a second invention, in the first invention, the hot water storage tank further comprises a heater provided in the space of the hot water storage tank for heating water in the hot water storage tank, wherein the heater is supported by the hot water storage tank and is non-heat generating. and a heat-generating portion arranged at a predetermined position inside the hot water storage tank by the non-heat-generating portion, and the space includes a first region overlapping the recess in the vertical direction and the a second region that does not overlap with the recess and is adjacent to the first region in the left-right direction, wherein the volume of the second region is larger than the volume of the first region, and at least A part of the heat generating part is located in the first area, and at least part of the heat generating part is located in the second area.

According to this sanitary washing device, at least part of the non-heat-generating part is positioned in the first area, and at least part of the heat-generating part is positioned in the second area. of water can be heated more efficiently.

A third aspect of the invention is the sanitary washing device according to the second aspect of the invention, wherein another part of the heat generating portion is located in the first region.

According to this sanitary washing device, another part of the heat-generating part is positioned in the first area, so that the water flow heated and raised by the heat-generating part hits the concave part positioned above the first area, and the water hitting the concave part flows along the inner wall surface of the hot water storage tank so as to spread over the entire hot water storage tank. Therefore, the lateral convection in the hot water tank can be further promoted, and the water in the hot water tank can be heated more efficiently.

In a fourth aspect based on the second or third aspect, the second region includes a third region positioned forward of the heat generating portion and a fourth region positioned rearward of the heat generating portion. and wherein the volume of the third area is different from the volume of the fourth area.

According to this sanitary washing device, since the volume of the third region is different from the volume of the fourth region, it is possible to further promote convection in the front-rear direction in the hot water storage tank, so that the water in the hot water storage tank can be more effectively dissipated. Can be heated.

In a fifth invention, in any one of the first to fourth inventions, the liquid adhesion suppression unit further comprises a liquid adhesion suppression unit that suppresses adhesion of liquid that has entered from the outside of the casing to the hot water storage tank, and the liquid adhesion suppression unit The part has a water conduit provided in the recess, and the water conduit is provided so as to be capable of guiding the liquid from below the first shaft supporting part to a position that does not overlap the hot water storage tank in the vertical direction. It is a sanitary washing device that

According to this sanitary washing device, by providing the liquid adhesion suppressing portion having the water conduit, the liquid entering the casing from around the first shaft support portion is prevented from adhering to the hot water storage tank, and the hot water is stored in the vertical direction. The liquid can be guided to a position where it does not overlap with the tank. As a result, it is possible to prevent the liquid from adhering to the hot water storage tank and deteriorating it.

According to a sixth aspect of the invention, in any one of the first to fifth aspects of the invention, the toilet seat and the toilet lid have a second rotating shaft provided in the casing and extending in the left-right direction. further comprising a second shaft supporting portion rotatably supporting the other of the two rotating shafts about the second rotating shaft, wherein the second rotating shaft is located at a different position from the first rotating shaft in at least one of the front-rear direction and the vertical direction and at least a portion of the second shaft supporting portion is disposed in the recess.

According to this sanitary washing device, by arranging at least a part of the first shaft support and at least a part of the second shaft support in the recess, the hot water storage tank, the first shaft support and the second shaft support are attached to the casing. In contrast, it can be arranged efficiently, and it is possible to make the whole device more compact while suppressing the deterioration of the boiling efficiency of the hot water storage tank.

According to a seventh invention, in any one of the first to sixth inventions, the first shaft supporting portion is arranged so that an extension line of the first rotating shaft passes through the recess. It is a sanitary cleaning device.

According to this sanitary washing device, the hot water storage tank and the first shaft support can be arranged more efficiently with respect to the casing, and the entire device can be made more compact.

ADVANTAGE OF THE INVENTION According to the aspect of this invention, the sanitary washing apparatus which can make the whole apparatus compact is provided, suppressing the decline in the boiling-up efficiency of hot water.

1 is a perspective view schematically showing a toilet device provided with a sanitary washing device according to an embodiment; FIG. It is a block diagram showing typically the important section composition of the sanitary washing device concerning an embodiment. 3(a) and 3(b) are perspective views schematically showing the hot water storage type heat exchanger according to the embodiment. Fig.4 (a) and FIG.4(b) are the front view and sectional drawing which represent typically the hot water storage-type heat exchanger which concerns on embodiment. 1 is a perspective view schematically showing part of a sanitary washing device according to an embodiment; FIG. It is a side view which represents typically a part of sanitary washing apparatus which concerns on embodiment. 7(a) and 7(b) are a side view and a front view schematically showing the hot water storage tank and the first toilet seat pivotal support. FIGS. 8(a) and 8(b) are side views schematically showing modifications of the hot water tank, the first toilet seat pivoting portion, and the first toilet lid pivoting portion. 9(a) and 9(b) are a plan view and a cross-sectional view schematically showing the hot water storage type heat exchanger according to the embodiment. 10(a) and 10(b) are a plan view and a cross-sectional view schematically showing the hot water storage type heat exchanger according to the embodiment. 1 is a perspective view schematically showing a hot water storage type heat exchanger according to an embodiment; FIG. 1 is a cross-sectional view schematically showing part of a sanitary washing device according to an embodiment; FIG. It is a top view which represents typically a part of sanitary washing apparatus which concerns on embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, the same reference numerals are given to the same constituent elements, and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view schematically showing a toilet apparatus provided with a sanitary washing device according to an embodiment.
As shown in FIG. 1, the toilet device 2 includes a western-style seated toilet (hereinafter simply referred to as "toilet" for convenience of explanation) 4 and a sanitary washing device 10 provided thereon. The sanitary washing device 10 includes a casing 12 , a toilet seat 14 and a toilet lid 16 . In addition, the toilet lid 16 is provided as needed and can be omitted. The sanitary washing device 10 should include at least the casing 12 and the toilet seat 14 .

The toilet seat 14 has a pair of hinge portions 14a and 14b provided at the left and right ends of the rear end, and is supported by the casing 12 via the hinge portions 14a and 14b so as to be openable and closable. Similarly, the toilet lid 16 has a pair of hinge portions 16a and 16b provided at the left and right ends of the rear end, and is supported by the casing 12 via the hinge portions 16a and 16b so as to be openable and closable.

In the following description of the embodiments, the terms "upper", "lower", "forward", "backward", "rightward" and "leftward" are used, and these directions, as represented in FIG. This is the direction viewed from the user sitting on the toilet seat 14 .

The seated toilet bowl 4 has a bowl 4a and a rim surface 4b. The rim surface 4 b is, in other words, the upper end surface of the toilet bowl 4 . The bowl 4a is recessed downward from the rim surface 4b. The toilet bowl 4 receives the excrement of a seated user with a bowl 4a.

The casing 12 is provided above the rim surface 4 b of the seated toilet bowl 4 . The casing 12 is detachably provided on the rim surface 4b, for example, at a portion behind the bowl 4a. The sanitary washing device 10 is a so-called sheet-type sanitary washing device that is detachably attached to the toilet bowl 4 . However, the sanitary washing device 10 is not limited to the sheet type, and may be an integrated sanitary washing device provided integrally with the toilet bowl 4 .

The casing 12 has a case plate 12a placed on the rear rim surface 4b of the toilet bowl 4, and a cover 12b covering the case plate 12a. In the example shown in FIG. 1, the case plate 12a is shown by a dashed line because the case plate 12a is covered and hidden by the cover 12b.

Inside the casing 12, there is built-in a body washing function part for washing the "buttocks" of the user sitting on the toilet seat 14, and the like. Further, for example, the casing 12 is provided with a seating detection sensor 20 (see FIG. 2) for detecting that the user has sat on the toilet seat 14 . When the seat detection sensor 20 detects the user sitting on the toilet seat 14, the user operates the operation unit 6 such as a remote controller, and the cleaning nozzle (hereinafter simply referred to as "nozzle" for convenience of explanation) 22 is operated. can be advanced into the bowl 4a of the toilet bowl 4. Note that the sanitary washing device 10 shown in FIG. 1 shows a state in which the nozzle 22 has advanced into the bowl 4a.

The nozzle 22 discharges water toward the human body's private parts to wash the human body's private parts. The tip of the nozzle 22 is provided with a bidet washing spout 22a and a buttocks washing spout 22b. The nozzle 22 can jet water from a bidet washing spout 22a provided at its tip to wash the private parts of a woman sitting on the toilet seat 14. - 特許庁Alternatively, the nozzle 22 can jet water from a bottom washing spout 22b provided at its tip to wash the "bottom" of the user sitting on the toilet seat 14. FIG. In the specification of the present application, "water" includes not only cold water but also heated hot water.

Modes for washing the "bottom" include, for example, "bottom washing" and "soft washing" for gently washing with a water stream that is softer than the "bottom washing". The nozzle 22 can perform, for example, "bidet washing", "bottom washing", and "soft washing".

In the nozzle 22 shown in FIG. 1, the bidet washing spout 22a is provided closer to the tip side of the nozzle 22 than the bottom washing spout 22b. is not limited to this. The bidet washing spout 22a may be provided closer to the rear end of the nozzle 22 than the bottom washing spout 22b. Further, although the nozzle 22 shown in FIG. 1 is provided with two water outlets, it may be provided with three or more water outlets.

FIG. 2 is a block diagram schematically showing the main configuration of the sanitary washing device according to the embodiment. FIG. 2 also shows the main configuration of the waterway system and the electrical system.
As shown in FIG. 2 , the sanitary washing device 10 has a water guide section 30 . The water guide section 30 has a pipeline 30a from a water supply source WS such as a tap or a water storage tank to the nozzle 22 . The water guide section 30 guides the water supplied from the water supply source WS to the nozzle 22 through the conduit 30a. The pipe line 30a is formed by, for example, parts such as an electromagnetic valve 32, a hot water storage type heat exchanger 40, and a flow path switching part 52, which will be described below, and a plurality of pipes connecting these parts.

A solenoid valve 32 is provided on the upstream side of the water guide section 30 . The electromagnetic valve 32 is an electromagnetic valve that can be opened and closed, and controls water supply based on a command from a control unit 24 provided inside the casing 12 . In other words, the electromagnetic valve 32 opens and closes the pipeline 30a. By opening the electromagnetic valve 32, water supplied from the water supply source WS flows into the pipeline 30a.

A pressure regulating valve 34 is provided downstream of the solenoid valve 32 . The pressure regulating valve 34 regulates the pressure in the pipeline 30a to a predetermined pressure range when the water supply pressure is high. A check valve 36 is provided downstream of the pressure regulating valve 34 . The check valve 36 suppresses backflow of water to the upstream side of the check valve 36 when the pressure in the pipeline 30a is lowered.

A hot water storage type heat exchanger 40 is provided downstream of the check valve 36 . The hot water storage type heat exchanger 40 has a hot water storage tank and a heater, stores water supplied from the water supply source WS in the hot water storage tank, and heats the water in the hot water storage tank to, for example, a specified temperature. Warm up. That is, the hot water storage type heat exchanger 40 generates hot water. The hot water storage type heat exchanger 40 is housed within the casing 12 . In other words, the casing 12 houses the hot water storage heat exchanger 40 .

The hot water storage type heat exchanger 40 is connected to the controller 24 . The control unit 24 raises the temperature of water to the temperature set by the operation unit 6 by controlling the hot water storage type heat exchanger 40 according to the operation of the operation unit 6 by the user, for example.

An electrolytic cell unit 44 is provided downstream of the hot water storage type heat exchanger 40 . The electrolytic cell unit 44 electrolyzes the tap water flowing inside to generate a liquid containing hypochlorous acid (functional water) from the tap water. The electrolytic cell unit 44 is connected to the controller 24 . The electrolytic cell unit 44 generates functional water under the control of the controller 24 .

The functional water generated in the electrolytic cell unit 44 may be, for example, a solution containing metal ions such as silver ions and copper ions. Alternatively, the functional water generated in the electrolytic cell unit 44 may be a solution containing electrolytic chlorine, ozone, or the like. Alternatively, the functional water generated in the electrolytic cell unit 44 may be acidic water or alkaline water.

A vacuum breaker (VB) 46 is provided downstream of the electrolytic cell unit 44 . The vacuum breaker 46 has, for example, a channel for flowing water, an intake port for taking air into the channel, and a valve mechanism for opening and closing the intake port. For example, the valve mechanism closes the intake port when water is flowing through the channel, and opens the intake port to take air into the channel when the flow of water stops. That is, the vacuum breaker 46 draws air into the conduit 30a when there is no water flow in the water conduit 30. As shown in FIG. A float valve, for example, is used for the valve mechanism.

The vacuum breaker 46 draws air into the pipeline 30a as described above, thereby promoting, for example, draining of the downstream portion of the pipeline 30a from the vacuum breaker 46 . A vacuum breaker 46, for example, facilitates draining the nozzle 22.

A flow control unit 50 is provided downstream of the vacuum breaker 46 . The flow rate adjustment unit 50 adjusts the water force (flow rate). A channel switching unit 52 is provided downstream of the flow rate adjusting unit 50 . The flow path switching unit 52 performs opening/closing and switching of water supply to the nozzle 22 and the nozzle cleaning chamber 54 . The flow rate adjusting section 50 and the flow switching section 52 may be provided as one unit. The flow rate adjusting section 50 and the flow path switching section 52 are connected to the control section 24 . Operations of the flow rate adjusting unit 50 and the flow switching unit 52 are controlled by the control unit 24 . Note that the flow rate adjusting section 50 and the flow path switching section 52 may be integrated.

A nozzle 22 , a nozzle cleaning chamber 54 , and a spray nozzle 56 are provided downstream of the flow path switching section 52 . The nozzle 22 receives a driving force from the nozzle motor 58 and advances or retreats into the bowl 4a of the toilet bowl 4. As shown in FIG. That is, the nozzle motor 58 advances and retreats the nozzle 22 based on a command from the controller 24 .

The nozzle cleaning chamber 54 cleans the outer peripheral surface (body) of the nozzle 22 by jetting functional water or water from a water discharger provided therein. The spray nozzle 56 turns washing water and functional water into a mist and sprays it onto the bowl 4a. In this example, a spray nozzle 56 is provided separately from the nozzle 22 for washing the human body. Without being limited to this, the nozzle 22 may be provided with a spout for spraying a mist-like liquid onto the bowl 4a.

Further, downstream of the flow path switching section 52, a buttocks washing flow path 61, a soft washing flow path 62, and a bidet washing flow path 63 are provided. The rear washing flow path 61 and the soft washing flow path 62 guide the water supplied from the water supply source WS through the water guide section 30 and the functional water generated in the electrolytic cell unit 44 to the rear washing spout 22b. The bidet washing channel 63 guides the water supplied from the water supply source WS through the water guiding portion 30 and the functional water generated in the electrolytic cell unit 44 to the bidet washing spout 22a.

A surface cleaning channel 64 and a spray channel 65 are provided downstream of the channel switching section 52 . The surface cleaning flow path 64 guides the water supplied from the water supply source WS through the water guide section 30 and the functional water generated in the electrolytic cell unit 44 to the water discharge section of the nozzle cleaning chamber 54 . The spray flow path 65 guides the water supplied from the water supply source WS and the functional water generated in the electrolytic cell unit 44 to the spray nozzle 56 via the water guide section 30 .

The control unit 24 controls the flow path switching unit 52 to switch each of the bottom washing flow path 61 , the soft washing flow path 62 , the bidet washing flow path 63 , the surface washing flow path 64 , and the spray flow path 65 . switch between open and closed. In this manner, the flow path switching unit 52 causes each of the plurality of water outlets such as the bidet washing outlet 22a, the buttocks washing outlet 22b, the nozzle washing chamber 54, and the spray nozzle 56 to communicate with the conduit 30a. , and a state in which the conduit 30a is not communicated.

The control unit 24 is supplied with power from the power supply circuit 70, and operates the electromagnetic valve 32, the hot water storage type heat exchanger 40, It controls the operations of the electrolytic cell unit 44, the flow rate adjusting unit 50, the channel switching unit 52, the nozzle motor 58, and the like.

A human body detection sensor 72 is provided in the casing 12 and detects a user (human body) approaching the toilet seat 14 . The human body detection sensor 72 is configured to detect the presence of the user even when the toilet lid 16 is closed. The control unit 24 automatically opens the toilet lid 16 in response to detection of the user by the human body detection sensor 72, for example.

In addition, the casing 12 has various functions such as a "warm air drying function" for blowing warm air toward the "buttocks" of the user sitting on the toilet seat 14 to dry them, a "deodorizing unit", and an "indoor heating unit". Mechanisms may be provided accordingly. At this time, an exhaust port from the deodorizing unit and an exhaust port from the indoor heating unit are appropriately provided on the side surface of the casing 12 . However, the sanitary washing device 10 only needs to have at least a sanitary washing function part.

3(a) and 3(b) are perspective views schematically showing the hot water storage type heat exchanger according to the embodiment.
Fig.4 (a) and FIG.4(b) are the front view and sectional drawing which represent typically the hot water storage-type heat exchanger which concerns on embodiment.
3(a) is a perspective view of the hot water storage type heat exchanger 40 seen obliquely from the front, and FIG. 3(b) is a perspective view of the hot water storage type heat exchanger 40 seen from the oblique rear. FIG. 4(b) schematically shows a cross section along line A1-A2 of FIG. 4(a).

As shown in FIGS. 3(a), 3(b), 4(a), and 4(b), the hot water storage type heat exchanger 40 includes a hot water storage tank 100 and a heater . The hot water storage tank 100 has a space SP for storing hot water inside. The heater 102 is provided within the space SP of the hot water storage tank 100 and heats the water in the hot water storage tank 100 . As described above, the hot water storage heat exchanger 40 is housed within the casing 12 . That is, the hot water storage tank 100 is housed inside the casing 12 . In other words, casing 12 houses hot water tank 100 .

The hot water storage tank 100 has a recess 110 . The recessed portion 110 is provided in the upper portion of one end side of the hot water storage tank 100 in the left-right direction, and is continuously recessed downward from the front end to the rear end. In other words, the recessed portion 110 is a portion that is recessed downward at the upper portion of one end side in the left-right direction when viewed from the front or rear. As a result, the hot water storage tank 100 forms a space 112 communicating with the front and rear in the recess 110 . The space 112 is, in other words, the space inside the recess 110 . The space 112 is, for example, a space surrounded by extensions of the outer edge of the hot water storage tank 100 .

The hot water storage tank 100 has, for example, a first portion 121 and a second portion 122 adjacent to the first portion 121 in the left-right direction and protruding upward from the first portion 121 . It can also be said that a space 112 that communicates in the front-rear direction is formed in a portion above the first portion 121 .

FIG. 5 is a perspective view schematically showing part of the sanitary washing device according to the embodiment.
FIG. 6 is a side view schematically showing part of the sanitary washing device according to the embodiment.
As shown in FIGS. 5 and 6, the hot water storage tank 100 is arranged near one end in the left-right direction of the case plate 12a. The recessed portion 110 of the hot water storage tank 100 is provided on the side of the hot water storage tank 100 that is located closer to the case plate 12a in the left-right direction. In this example, the hot water storage tank 100 is arranged on the right side of the case plate 12a. Therefore, recessed portion 110 is also provided in the upper right portion of hot water storage tank 100 . On the contrary, the hot water storage tank 100 may be arranged on the left side with respect to the case plate 12a, and the concave portion 110 may be provided on the upper left side of the hot water storage tank 100. FIG.

The nozzle 22 is provided in the central portion of the case plate 12a. The nozzle 22 is arranged in the central portion inside the casing 12 so that its longitudinal direction is the front-rear direction when viewed from above, and extends toward the bowl 4 a of the toilet bowl 4 .

The sanitary washing device 10 further includes a first toilet seat pivot 141 (first pivot), a second toilet seat pivot 142 , a first toilet lid pivot 151 , and a second toilet lid pivot 152 .

The first toilet seat bearing portion 141 and the second toilet seat bearing portion 142 are provided inside the casing 12 and have a rotation axis RA1 (first rotation axis) extending in the left-right direction. is rotatably supported around the center.

Specifically, the first toilet seat support portion 141 rotatably supports one hinge portion 14a of the toilet seat 14, and the second toilet seat support portion 142 rotatably supports the other hinge portion 14b of the toilet seat 14. pivot on.

As a result, the toilet seat 14 is rotatably supported by the first toilet seat support portion 141 and the second toilet seat support portion 142 . The first toilet seat support portion 141 and the second toilet seat support portion 142 are positioned on the rim surface 4b of the toilet bowl 4 to enable a user to sit on the closed position, and the open position is spaced upward from the rim surface 4b of the toilet bowl 4. , the toilet seat 14 is moved.

The first toilet lid pivoting portion 151 and the second toilet lid pivoting portion 152 are provided inside the casing 12 and have a rotation axis RA2 extending in the left-right direction. It is rotatably pivoted. The rotation axis RA2 is set at a position different from that of the rotation axis RA1 in at least one of the longitudinal direction and the vertical direction. The rotation axis RA2 is set, for example, behind and above the rotation axis RA1.

The first toilet lid support portion 151 rotatably supports one hinge portion 16a of the toilet lid 16, and the second toilet lid support portion 152 rotatably supports the other hinge portion 16b of the toilet lid 16. pivot.

As a result, the toilet lid 16 is rotatably supported by the first toilet lid pivoting portion 151 and the second toilet lid pivoting portion 152 . The first toilet lid pivotal support portion 151 and the second toilet lid pivotal support portion 152 are in the closed position covering the bowl 4a of the toilet 4 and the toilet seat 14, and the bowl 4a of the toilet 4 and the toilet seat 14 are exposed so that the toilet device 2 can be used. The toilet lid 16 is moved to the opening position and the opening position.

The second toilet seat support section 142 has a driving section such as a motor, rotatably supports the toilet seat 14, and automatically opens and closes the toilet seat 14 by the driving force of the driving section. In addition, the second toilet seat support portion 142 has an elastic body such as a spring, and suppresses sudden movement of the toilet seat 14 to the closed position by the biasing force of the elastic body. In other words, the second seat pivot 142 provides a soft close that slowly moves the seat 14 to the closed position. The second toilet seat pivot 142 is a so-called electric opening/closing mechanism.

The second toilet lid pivoting portion 152 is an electric opening/closing mechanism that performs automatic opening/closing and soft closing of the toilet lid 16 in the same manner as the second toilet seat pivoting portion 142 . The second toilet seat support portion 142 and the second toilet lid support portion 152 may be, for example, soft closing mechanisms that only perform soft closing of the toilet seat 14 and the toilet lid 16 . The second toilet seat pivoting portion 142 and the second toilet lid pivoting portion 152 may be, for example, bearings that only pivotally support the toilet seat 14 and the toilet lid 16 .

The sanitary washing device 10 comprises a support 160 for supporting the toilet seat 14 and toilet lid 16 . The first toilet seat pivoting portion 141 and the first toilet lid pivoting portion 151 are provided on the support 160 . However, the first toilet seat pivoting portion 141 and the first toilet lid pivoting portion 151 may be individually provided inside the casing 12 .

The first toilet lid pivot 151 is, for example, a bearing provided integrally with the support 160 . However, the first toilet lid support portion 151 may be an electric opening/closing mechanism, a soft closing mechanism, or the like.

7(a) and 7(b) are a side view and a front view schematically showing the hot water storage tank and the first toilet seat pivotal support.
As shown in FIGS. 7A and 7B, the first toilet seat support portion 141 has a body portion 141a and a movable portion 141b. In addition, in FIG. 7, the movable portion 141b is painted with light ink to simplify the illustration.

The body portion 141a supports the movable portion 141b so as to be vertically movable. The movable portion 141b has a bearing portion 141c for rotatably supporting the hinge portion 14a of the toilet seat 14 . The first toilet seat pivotal support portion 141 is held by the support 160 with the bearing portion 141c opposed to the opening 160a provided in the support 160 . The first toilet seat support portion 141 rotatably supports the hinge portion 14a of the toilet seat 14 via the opening 160a of the support 160 and the bearing portion 141c.

The body portion 141a has an elastic body such as a spring, and biases the movable portion 141b upward by the biasing force of the elastic body. When the user sits on the toilet seat 14, the body part 141a causes the movable part 141b to move downward due to the load on the toilet seat 14. As shown in FIG.

The first toilet seat support portion 141 has a detection portion (not shown) that detects downward movement of the movable portion 141b. The first toilet seat support portion 141 is a seating detection mechanism that rotatably supports the toilet seat 14 and detects whether a user or the like is seated on the toilet seat 14 .

However, the first toilet seat support portion 141 is not limited to the seating detection mechanism, and may be an electric opening/closing mechanism, a soft closing mechanism, or a bearing that only supports the toilet seat 14 . The first toilet seat pivoting portion 141, the second toilet seat pivoting portion 142, the first toilet lid pivoting portion 151, and the second toilet lid pivoting portion 152 may be any mechanism capable of pivotally supporting at least the toilet seat 14 and the toilet lid 16. .

As shown in FIGS. 7( a ) and 7 ( b ), at least part of the first toilet seat pivot 141 is arranged in the recess 110 of the hot water storage tank 100 . In other words, at least part of the first toilet seat support portion 141 is arranged in the space 112 that communicates with the front and rear of the hot water storage tank 100 .

6 and 7A, the first toilet seat support portion 141 is arranged so that the extension of the rotation axis RA1 passes through the recess 110. As shown in FIG. In other words, the extension of rotation axis RA1 passes through space 112 .

As described above, in the sanitary washing device 10 according to the present embodiment, the recess 110 is provided in the upper part of the hot water storage tank 100 on one end side in the left-right direction, and at least part of the first toilet seat shaft support 141 is arranged in the recess 110. are doing. As a result, the hot water storage tank 100 and the first toilet seat pivot portion 141 can be efficiently arranged with respect to the casing 12, and the overall apparatus can be made compact. Further, since the recess 110 is provided in the upper part of the hot water storage tank 100 on one end side in the left-right direction, convection along the recess 110 is generated, and the water in the hot water storage tank 100 can be warmed more quickly. Therefore, it is possible to provide the sanitary washing device 10 that can be made compact as a whole while suppressing a decrease in hot water boiling efficiency.

In addition, in the above-described embodiment, an example in which the first toilet seat support portion 141, which is a seating detection mechanism, is arranged in the concave portion 110 is shown. The first toilet seat pivot 141 arranged in the recess 110 is not limited to the seating detection mechanism, and may be an electric opening/closing mechanism such as the second toilet seat pivot 142, a soft closing mechanism, a bearing, or the like.

Also, in the sanitary washing device 10 , the first toilet seat support portion 141 is arranged such that the extension of the rotation axis RA<b>1 passes through the recess 110 . As a result, the hot water storage tank 100 and the first toilet seat pivot portion 141 can be arranged more efficiently with respect to the casing 12, and the entire device can be made more compact.

FIGS. 8(a) and 8(b) are side views schematically showing modifications of the hot water tank, the first toilet seat pivoting portion, and the first toilet lid pivoting portion.
In the above embodiment, at least part of the first toilet seat pivotal support 141 is arranged in the recess 110, while the first toilet lid pivotal support 151 is not arranged in the recess 110 (see FIG. 6).

As shown in FIG. 8( a ), at least part of the first toilet lid pivoting portion 151 is arranged in the recess 110 , and the first toilet seat pivoting portion 141 is arranged outside the recess 110 , contrary to the above embodiment. You may arrange it. In this way, the pivoting portion arranged in the recess 110 may be the pivoting portion that pivotally supports one of the toilet seat 14 and the toilet lid 16 .

Further, as shown in FIG. 8B, at least a portion of the first toilet seat shaft support portion 141 (first shaft support portion), at least a portion of the first toilet lid shaft support portion 151 (second shaft support portion), may be placed in the recess 110 . As a result, the hot water storage tank 100, the first toilet seat pivotal support portion 141, and the first toilet lid pivotal support portion 151 can be efficiently arranged with respect to the casing 12, and a decrease in the boiling efficiency of the hot water storage tank 100 can be suppressed. , the overall apparatus can be made more compact.

When at least part of the first toilet seat support portion 141 and at least part of the first toilet lid support portion 151 are arranged in the recess 110, the extension of the rotation axis RA1 (first rotation axis) extends through the recess 110. The first toilet seat pivotal support 141 is arranged so that it passes through, and the first toilet lid pivotal support 151 is arranged so that the extension of the rotation axis RA2 (second rotation axis) passes through the recess 110 . As a result, the hot water storage tank 100, the first toilet seat pivotal support 141, and the first toilet lid pivotal support 151 can be arranged more efficiently with respect to the casing 12, and the entire device can be made more compact.

9(a) and 9(b) are a plan view and a cross-sectional view schematically showing the hot water storage type heat exchanger according to the embodiment.
FIG. 9(b) schematically shows a cross section along line B1-B2 of FIG. 9(a).
As shown in FIGS. 9A and 9B, the space SP of the hot water storage tank 100 has a first area SP1 and a second area SP2. The first region SP1 is a region that overlaps with the concave portion 110 in the vertical direction. In other words, the first region SP1 is a region in which the recess 110 is formed. The second region SP2 is a region that does not overlap the concave portion 110 in the vertical direction and is adjacent to the first region SP1 in the horizontal direction. The volume of the second area SP2 is larger than the volume of the first area SP1.

The heater 102 is provided within the space SP of the hot water storage tank 100 . As shown in FIG. 9A, the heater 102 is obliquely provided, for example, when viewed from above. In other words, the heater 102 is provided, for example, so as to intersect the front-rear direction and the left-right direction.

The heater 102 has a non-heat generating portion 102a and a heat generating portion 102b. The non-heat generating portion 102 a is supported by the hot water storage tank 100 . The heat generating portion 102b is arranged at a predetermined position inside the hot water storage tank 100 by the non-heat generating portion 102a.

In this example, non-heat generating portions 102a are provided at both ends of the heater 102, and the heat generating portion 102b is provided between the two non-heat generating portions 102a. The heat generating portion 102b is a portion that has a heater element that generates heat, and the non-heat generating portion 102a is a portion that does not have a heater element. The heater element is, for example, a heater wire such as a Nichrome wire. The non-heat generating portion 102a has, for example, a terminal pin connected to a heater element. For example, the connecting portion between the terminal pin and the heater element can be regarded as the boundary between the non-heat-generating portion 102a and the heat-generating portion 102b.

At least part of the non-heat generating portion 102a is located in the first region SP1. At least part of the heat generating portion 102b is located in the second region SP2. In this manner, at least a portion of the non-heat generating portion 102a is positioned in the first region SP1, and at least a portion of the heat generating portion 102b is positioned in the second region SP2. The water in 100 can be heated more efficiently. Another portion (for example, both ends) of the non-heat generating portion 102a may be located outside the hot water storage tank 100 (space SP).

Further, in this example, another portion of the heat generating portion 102b is located in the first region SP1. In other words, the boundary between the non-heat generating portion 102a and the heat generating portion 102b is located in the first region SP1. In this way, another part of the heat-generating portion 102b is located in the first region SP1, so that the water flow heated and raised by the heat-generating portion 102b flows into the upper portion of the first region SP1, as shown in FIG. 9B. , and the water that hits the recess 110 flows along the inner wall surface of the hot water storage tank 100 so as to spread over the entire hot water storage tank 100 . Therefore, lateral convection in hot water storage tank 100 can be further promoted, and water in hot water storage tank 100 can be heated more efficiently.

10(a) and 10(b) are a plan view and a cross-sectional view schematically showing the hot water storage type heat exchanger according to the embodiment.
FIG. 10(b) schematically shows a C1-C2 cross section of FIG. 10(a).
As shown in FIGS. 10A and 10B, the second region SP2 has a third region SP3 and a fourth region SP4. The third region SP3 is a region that does not overlap the concave portion 110 in the vertical direction and is located forward of the heat generating portion 102b. The fourth region SP4 is a region that does not overlap with the concave portion 110 in the vertical direction and is located behind the heat generating portion 102b.

The volume of the third area SP3 is different from the volume of the fourth area SP4. In this example, the volume of the third region SP3 is larger than the volume of the fourth region SP4. Since the volume of the third region SP3 is different from the volume of the fourth region SP4 in this way, as shown in FIG. The water in the hot water storage tank 100 can be heated more efficiently. Note that the volume of the third region SP3 may be smaller than the volume of the fourth region SP4.

FIG. 11 is a perspective view schematically showing the hot water storage type heat exchanger according to the embodiment.
FIG. 12 is a cross-sectional view schematically showing part of the sanitary washing device according to the embodiment.
FIG. 13 is a plan view schematically showing part of the sanitary washing device according to the embodiment.
FIG. 13 is a plan view of the casing 12 with the cover 12b removed.
As shown in FIGS. 11 to 13, the hot water storage heat exchanger 40 may further include a liquid adhesion suppressor 180. FIG. The liquid adhesion suppressing portion 180 suppresses the liquid that has entered from the outside of the casing 12 (for example, the first shaft support portion) from adhering to the hot water storage tank 100 .

The liquid adhesion suppressing section 180 has a water conduit 182 . A water conduit 182 is provided in the recess 110 . The water conduit 182 is provided below the first toilet seat support portion 141 (first support portion) and extends to a position where it does not overlap the hot water storage tank 100 in the vertical direction. Further, the water conduit 182 slopes downward from below the first toilet seat support portion 141 (first support portion) toward a position where it does not overlap the hot water storage tank 100 in the vertical direction. Thus, the water conduit 182 is provided to guide (discharge) the liquid from below the first toilet seat support portion 141 (first support portion) to a position that does not overlap the hot water storage tank 100 in the vertical direction.

In this example, the water conduit 182 extends forward from below the first toilet seat support portion 141 (first support portion) and is capable of guiding liquid forward. The water conduit 182 may extend rearward or laterally from below the first toilet seat pivotal portion 141 (first pivotal portion) and may be capable of guiding liquid rearward or laterally.

Further, in this example, the liquid adhesion suppressing portion 180 (water conduit 182) is provided separately from the casing 12. As shown in FIG. The liquid adhesion suppressing portion 180 (water conduit 182 ) may be provided integrally with the casing 12 . In other words, the liquid adhesion suppressing portion 180 (water conduit 182) may be formed by part of the case plate 12a or the cover 12b.

Liquid that has entered from the outside of the casing 12 is discharged out of the casing 12 by flowing in the directions indicated by arrows in FIGS. 12 and 13, for example. The liquid that enters the casing 12 from around the first pivotal portion (first toilet seat pivotal portion 141 ) drops into the water conduit 182 . The liquid that has fallen into the water conduit 182 flows forward along the water conduit 182 and drops from the front end of the water conduit 182 onto the case plate 12a. The liquid that has fallen onto the case plate 12a flows along the case plate 12a toward the nozzle 22 and is discharged into the bowl 4a through the hole 12c provided in the case plate 12a.

By providing the liquid adhesion suppressing portion 180 having the water conduit 182 in this way, it is possible to prevent the liquid that has entered the casing 12 from around the first pivotal portion (the first toilet seat pivotal portion 141) from adhering to the hot water storage tank 100. The liquid can be guided to a position where it does not overlap the hot water storage tank 100 in the vertical direction while suppressing it. As a result, it is possible to prevent the liquid from adhering to the hot water storage tank 100 and deteriorating it.

In addition, in the above-described embodiment, the configuration including the first toilet lid pivoting portion 151, the second toilet lid pivoting portion 152, and the toilet lid 16 is shown. may be provided at least.

In addition, the first toilet lid pivoting portion 151 and the first toilet seat pivoting portion 141, or the second toilet lid pivoting portion 152 and the second toilet seat pivoting portion 142 have been described as separate shafts. good.

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the sanitary washing device 10, the hot water storage type heat exchanger 40, and the hot water storage tank 100 are not limited to those illustrated and can be changed as appropriate. .
In addition, each element provided in the above-described embodiments can be combined as long as it is technically possible, and a combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

2 toilet device 4 toilet bowl 6 operation unit 10 sanitary washing device 12 casing 14 toilet seat 16 toilet lid 20 seating detection sensor 22 nozzle 24 control unit 30 water conveying unit 32 solenoid valve 34 pressure regulating valve 36 check valve, 40 hot water storage type heat exchanger, 44 electrolyzer unit, 46 vacuum breaker, 50 flow rate adjusting unit, 52 channel switching unit, 54 nozzle cleaning chamber, 56 spray nozzle, 58 nozzle motor, 61 bottom cleaning channel , 62 soft washing flow path, 63 bidet washing flow path, 64 surface washing flow path, 65 spray flow path, 70 power supply circuit, 72 human body detection sensor, 100 hot water storage tank, 102 heater, 102a non-heat generating part, 102b heat generating part, 110 recess 112 space 121 first portion 122 second portion 141 first toilet seat pivot 142 second toilet seat pivot 151 first toilet lid pivot 152 second toilet lid pivot 160 support 180 liquid adhesion suppression unit 182 water conduit RA1, RA2 rotating shaft SP space SP1 to SP4 first to fourth regions WS water supply source

Claims (7)

A hot water storage tank having a space for storing hot water inside,
a casing housing the hot water tank;
A first shaft support provided in the casing and having a first rotating shaft extending in the left-right direction, and supporting one of the toilet seat and the toilet lid with respect to the casing so as to be rotatable about the first rotating shaft. and,
with
The hot water storage tank is provided at an upper portion on one end side in the left-right direction, and has a concave portion continuously recessed downward from a front end to a rear end,
At least part of the first shaft support is arranged in the recess,
further comprising a liquid adhesion suppression unit that suppresses adhesion of liquid that has entered from the outside of the casing to the hot water storage tank,
The liquid adhesion suppressing portion has a water conduit provided in the recess,
The sanitary washing device, wherein the water conduit is provided so as to be able to guide the liquid from below the first shaft support portion to a position that does not overlap with the hot water storage tank in the vertical direction. A hot water storage tank having a space for storing hot water inside,
a casing housing the hot water tank;
A first shaft support provided in the casing and having a first rotating shaft extending in the left-right direction, and supporting one of the toilet seat and the toilet lid with respect to the casing so as to be rotatable around the first rotating shaft. and,
with
The hot water storage tank is provided at an upper portion on one end side in the left-right direction, and has a concave portion continuously recessed downward from a front end to a rear end,
At least part of the first shaft support is arranged in the recess,
A second rotary shaft is provided in the casing and extends in the left-right direction, and pivotally supports the other of the toilet seat and the toilet lid with respect to the casing so as to be rotatable about the second rotary shaft. further comprising a two-axis support,
The second rotating shaft is set at a position different from the first rotating shaft in at least one of the longitudinal direction and the vertical direction,
The sanitary washing device , wherein at least part of the second shaft supporting portion is arranged in the concave portion . further comprising a liquid adhesion suppression unit that suppresses adhesion of liquid that has entered from the outside of the casing to the hot water storage tank,
The liquid adhesion suppressing portion has a water conduit provided in the recess,
3. The sanitary washing apparatus according to claim 2 , wherein the water conduit is provided so as to be able to guide the liquid from below the first shaft support portion to a position that does not overlap with the hot water storage tank in the vertical direction. further comprising a heater provided in the space of the hot water storage tank for heating water in the hot water storage tank;
The heater has a non-heat-generating portion supported by the hot-water storage tank, and a heat-generating portion arranged at a predetermined position inside the hot-water storage tank by the non-heat-generating portion,
The space has a first region that overlaps the recess in the vertical direction and a second region that does not overlap the recess in the vertical direction and is adjacent to the first region in the horizontal direction,
The volume of the second region is larger than the volume of the first region,
At least part of the non-heat generating portion is located in the first region,
The sanitary washing device according to any one of claims 1 to 3 , wherein at least part of the heat generating portion is located in the second area. 5. The sanitary washing device according to claim 4 , wherein another part of said heat generating portion is located in said first region. The second region has a third region located in front of the heat generating portion and a fourth region located behind the heat generating portion,
6. The sanitary washing device according to claim 4 , wherein the volume of said third area is different from the volume of said fourth area. The sanitary washing device according to any one of claims 1 to 6, wherein the first shaft supporting portion is arranged so that an extension of the first rotating shaft passes through the recess.

Images