TW201942452A - Toilet device and toilet seat device - Google Patents

Abstract

According to one embodiment, a toilet device includes a flush toilet, a toilet seat, a spray device, a detecting sensor, and a controller. The flush toilet includes a bowl, a rim upper surface, and a water discharge port. The bowl includes a flush region and a non-flush region. The controller executes a pre-mist mode by automatically controlling the spray device to spray the mist into the bowl. In the pre-mist mode, the controller controls the spray device to cause the mist to directly wet a front end part of the non-flush region and to cause an average wetting amount per unit area of the mist directly wetting an upper region of the front end part to be less than an average wetting amount per unit area directly wetting a lower region of the front end part.

Description

Flushing device and toilet seat device

The aspect of the present invention generally relates to a flushing device and a toilet seat device.

In the toilet flushing device described in Patent Document 1, before using the toilet flushing device (for example, when a human body sensor detects a human body), the toilet body is automatically sprayed with chloric acid water or water mist from the toilet bowl. Front spray mode. The water spray is sprayed on the basin by the front spray mode, and the water spray forms a water film on the basin. Thereby, it is possible to suppress dirt from adhering to and sticking to the surface of the bowl.

The toilet with a water mist cleaning device described in Patent Document 2 is provided with a water mist cleaning device that sprays water mist of ozone water, electrolytic sterilization water, and high-temperature water. In Patent Document 2, the water mist generated by the water mist cleaning device can be cleaned by spreading the air to the corners of the toilet, toilet seat, and toilet lid.

[Prior technical literature]
[Patent Literature]

[Patent Document 1] Japanese Patent No. 5029930
[Patent Document 2] Japanese Patent Laid-Open No. 2007-138605

[Technical problem to be solved by the invention]

On the inner surface of the basin of the toilet, there are a washing area through which the washing water passes and a non-washing area located above the washing area and the washing water does not pass. The washing water is used to contaminate the soil in the basin. The object is discharged to the outside. Dirt may also adhere to such non-washed areas. For example, dirt that is splashed in the washing area may adhere to the non-washing area. In view of this, in order to suppress not only stains generated in the washing area, but also a wide range of stains including toilets in non-washed areas, it is preferable to make the water mist not only in the toilet spray mode before using the toilet device The water is applied to the cleaned area and the water is applied to the non-washed area.

In order to sufficiently suppress the dirt, it is preferable to attach a large amount of water mist to the non-washed area so that a water film is formed. However, in the flushing device of Patent Document 1, the amount of water mist impinging on the non-washed area is relatively small, and there is room for improvement in terms of suppressing the adhesion and adhesion of dirt in the non-washed area.

In view of this, for example, it is conceivable to use a blower that generates an updraft in the basin, and to apply a water mist to a wide range by airflow like in Patent Document 2. However, the possibility of the user using the flushing device immediately after performing the front spray mode is high. Therefore, if a part of the water mist floats on the upper surface of the toilet seat and the rim portion of the toilet seat due to the updraft, when the user sits on the toilet seat and rotates the toilet seat by hand, the user's hips and hands It may come into contact with the water mist splashing on the toilet seat, which may cause discomfort. In addition, since the upper surface of the basin edge portion is formed substantially horizontally, there is a possibility that a water film (including water droplets) formed by a water mist splashed on the upper surface of the basin edge portion may drip out of the toilet.

The present invention has been completed based on the recognition of the above-mentioned problems, and an object thereof is to provide a toilet spraying mode capable of suppressing the adhesion and adhesion of dirt in a range including a non-washing area of a toilet and suppressing water from falling on a basin edge. The water mist on the upper surface of the part drips out of the toilet, and the flushing device of the sitting part is wet with the water mist.

[Technical solution to solve the problem]

A first invention relates to a toilet flushing device, characterized in that a toilet has a basin portion that receives dirt, an upper surface of the basin edge portion above the basin portion, and a water spout to be discharged from the basin portion. The washing water of the dirt is discharged into the basin part; the basin part has: a washing area through which the washing water passes; and a position above the washing area and below the upper surface of the basin edge portion Non-washing area; a sitting part, the sitting part is provided on the upper part of the toilet and is used for seating by a user; a spray device is located on the rear side of the basin part, and sprays water mist into the basin part; a sensor, Detecting the user; and a control device for controlling the spray device based on the detection information of the sensor, the control device being capable of executing a front spray mode in which the state of the user is never detected by the sensor When the state of the user is detected, the spraying device is automatically controlled to spray water mist into the bowl. In the toilet spray mode, the control device controls In the above spray device, the water mist directly hits the front-side non-washing region which is the front end portion of the non-washing region, and the water mist per unit area directly hits the upper region of the front-side non-washing region. The average water impingement is smaller than the average water impingement per unit area of the water mist directly impinging on the lower region of the front-end-side non-washing region.

According to this toilet flushing device, the water mist sprayed from the spraying part in the toilet spray mode not only impinges on the washing area but also on the non-washing area, and forms a water film in the washing area and the non-washing area. This makes it possible to suppress the adhesion and adhesion of dirt over a wide range including the toilet in the non-washing area.
In addition, by making the average amount of water per unit area of the water mist directly hitting the lower region of the front end side non-washing region relatively large, the adhesion and adhesion of dirt in the lower region can be suppressed. On the other hand, by making the average amount of water per unit area of the water mist which directly hits the upper area of the non-washing area on the front end side relatively small, it is possible to suppress the water from hitting the upper surface of the basin edge portion and the sitting portion. The amount of fog. For example, it is possible to prevent the water mist reaching the upper region from splashing onto the upper surface of the basin edge portion and the sitting portion. Thereby, it is possible to suppress water mist dripping on the upper surface of the basin edge portion from dripping out of the toilet. In addition, it is possible to suppress the sitting part from being wetted with water mist. When the user is seated on the sitting part and when the seat is rotated by hand, it is possible to suppress the user's buttocks, hands, and water spraying on the sitting part. contact.

The flushing device according to the second invention is based on the first invention, wherein the upper region has an inclined surface that is inclined downward toward the outside of the basin part, and the lower region has an inclined surface that is inclined downward toward the inside of the basin part.

According to this toilet flushing device, since the inclined surface of the upper region is inclined downward toward the outside of the bowl portion, the water mist reaching the inclined surface of the upper region is guided downward. Thereby, splashing of water mist on the upper surface side of the basin edge portion can be suppressed. On the other hand, since the inclined surface of the lower region is inclined downward toward the inside of the basin portion, the water mist reaching the inclined surface of the lower region is guided upward. Thereby, a part of the water mist reaching the lower region can be caused to impinge on the upper region, and the amount of impingement (indirect impingement) in the upper region can be increased.

A toilet flushing device according to a third invention is based on the first or second invention, wherein in the toilet spray mode, the control device controls the spray device so that a particle diameter of a water mist directly hitting the lower region It is larger than the particle diameter of the water mist directly impinging on the upper region.

According to this flushing device, by increasing the particle diameter of the water mist directly hitting the lower region, it is possible to increase the average amount of water per unit area of the water mist directly hitting the lower region. In addition, by reducing the particle size of the water mist directly impinging on the upper region, it is possible to reduce the average water impingement per unit area of the water mist directly impinging on the lower region.

The fourth invention relates to a toilet seat device provided on an upper part of a toilet. The toilet has: a bowl portion that receives dirt; an upper surface of the bowl edge portion above the bowl portion; and a water spout that will be used from the foregoing. Washing water that discharges the dirt in the tub is discharged into the tub; the tub has: a washing area through which the washing water passes; and is located above the washing area and below the upper surface of the basin edge portion The toilet seat device is characterized by having a seating portion for a user to sit on, a spray device located on the rear side of the bowl portion, and spraying water mist into the bowl portion; sensing A control device that detects the user; and a control device that controls the spray device based on the detection information of the sensor, the control device is capable of executing the following pre-spray mode: the user is never detected by the sensor When the state of the user becomes the state of the user, the spray device is automatically controlled to spray water mist into the bowl. In the toilet spray mode, the The control device controls the spray device so that the water mist directly hits the front end portion of the non-washed area in the basin portion, that is, the front-side non-washed area, and directly hits the upper portion of the front-side non-washed area. The average water impingement per unit area of the water mist in the area is smaller than the average water impingement per unit area of the water mist directly impinging on the lower area of the non-washing area on the front end side.

According to this toilet seat device, the water mist sprayed from the spray part in the front spray mode not only impinges on the washing area but also on the non-washing area, and forms a water film in the washing area and the non-washing area. This makes it possible to suppress the adhesion and adhesion of dirt over a wide range including the toilet in the non-washing area.
In addition, by making the average amount of water per unit area of the water mist directly hitting the lower region of the front end side non-washing region relatively large, the adhesion and adhesion of dirt in the lower region can be suppressed. On the other hand, by making the average amount of water per unit area of the water mist which directly hits the upper area of the non-washing area on the front end side relatively small, it is possible to suppress the water from hitting the upper surface of the basin edge portion and the sitting portion. The amount of fog. For example, it is possible to prevent the water mist reaching the upper region from splashing onto the upper surface of the basin edge portion and the sitting portion. Thereby, it is possible to suppress water mist dripping on the upper surface of the basin edge portion from dripping out of the toilet. In addition, it is possible to suppress the sitting part from being wetted with water mist. When the user is seated on the sitting part and when the seat is rotated by hand, it is possible to suppress the user's buttocks, hands, and water spraying on the sitting part. contact.

According to a fifth invention, the toilet seat device according to the fourth invention is characterized in that the upper region has an inclined surface which is inclined downward toward the outside of the basin part, and the lower region has an inclined surface which is inclined downward toward the inside of the basin part. .

According to this toilet seat device, since the inclined surface of the upper region is inclined downward toward the outside of the bowl portion, the water mist reaching the inclined surface of the upper region is guided downward. Thereby, splashing of water mist on the upper surface side of the basin edge portion can be suppressed. On the other hand, since the inclined surface of the lower region is inclined downward toward the inside of the basin portion, the water mist reaching the inclined surface of the lower region is guided upward. Thereby, a part of the water mist reaching the lower region can be caused to impinge on the upper region, and the amount of impingement (indirect impingement) in the upper region can be increased.

According to a sixth invention, the toilet seat device according to the fourth or fifth invention is characterized in that, in the front spray mode, the control device controls the spray device so that the particles of water mist directly hitting the lower area The diameter is larger than the particle diameter of the water mist directly impinging on the aforementioned upper region.

According to this toilet seat device, by increasing the particle size of the water mist directly impinging on the lower region, it is possible to increase the average water impingement per unit area of the water mist directly impinging on the lower region. In addition, by reducing the particle size of the water mist directly impinging on the upper region, it is possible to reduce the average water impingement per unit area of the water mist directly impinging on the lower region.

[Effect of the invention]

According to the aspect of the present invention, it is possible to provide a front spray mode that suppresses the adhesion and adhesion of dirt in a range including a non-washing area of a toilet, and is capable of suppressing water mist dripping on the upper surface of a bowl edge from the toilet. Flushing device for landing and seating wetted with water mist.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, in each drawing, the same constituent elements are denoted by the same reference numerals, and detailed descriptions are appropriately omitted.
FIG. 1 is a perspective view illustrating a toilet device according to the embodiment.
The toilet flushing device 10 shown in FIG. 1 includes a sitting toilet (hereinafter simply referred to as “toilet” for convenience of explanation) 800 and a toilet seat device 100. The toilet 800 includes a recessed bowl portion 801 that receives dirt. The toilet seat device 100 is disposed on an upper portion of the toilet 800.

The toilet seat device 100 includes a housing 400 (main body portion), a seating portion 200 (toilet seat) on which a user sits, and a toilet cover 300. The seating portion 200 and the toilet cover 300 are pivotably supported with respect to the casing 400 so as to be openable and closable. The state of FIG. 1 is a state in which the seat 200 is closed (a state of being lowered), and a state in which the toilet seat 300 is opened (a state of being raised). The toilet seat 300 covers the seat surface of the seating portion 200 from above in a closed state.

A body washing function section and the like are built into the housing 400, and the body washing function section and the like realize washing of a human body part ("hip", etc.) of a user sitting in the sitting section 200. In addition, for example, a seating sensor 404 is provided in the housing 400, and the seating sensor 404 detects that the user is sitting on the seating section 200. When the seating sensor 404 detects a user sitting in the seating section 200, if the user operates a manual operation section 500 such as a remote controller, the cleaning nozzle (hereinafter, abbreviated as "Nozzle") 473 extends into the bowl 801 of the toilet 800. Among them, the toilet seat device 100 shown in FIG. 1 shows a state where the nozzle 473 is extended into the bowl portion 801.

One or more water spouts 474 are provided at a front end portion of the nozzle 473. Furthermore, the nozzle 473 can spray water from the water spout 474 provided in the front-end | tip part, and can wash the "buttocks" etc. of the user sitting in the sitting part 200.
Here, in the description of the present application, “upper”, “lower”, “front”, “rear”, “left side” and “right side” are respectively seated in the sitting part from the back facing the opened toilet seat 300. 200 user's viewing direction.

FIG. 2 is a cross-sectional view illustrating a part of the flushing device according to the embodiment.
As shown in FIG. 2, the upper portion of the basin portion 801 becomes a basin edge portion 805. The basin edge portion 805 is an annular portion forming an upper edge portion of the toilet 800. The water 801w is stored in the basin 801.

In addition, the toilet 800 has a basin edge upper surface 806 located above the basin portion 801. The basin edge portion upper surface 806 is the upper surface of the basin edge portion 805, and is opposed to, for example, the back surface 204 of the closed seat portion 200.

FIGS. 3 (a) and 3 (b) are schematic views illustrating a part of the flushing device according to the embodiment.
FIG. 3 (a) is a perspective view illustrating the toilet 800, and FIG. 3 (b) is a plan view illustrating the toilet 800. The toilet 800 has a water spout 811 provided at the basin edge portion 805. The water spout 811 discharges washing water for discharging dirt (for example, user's feces) from the basin 801 into the basin 801.

For example, if the user performs a toilet cleaning operation with a switch provided on a remote control or the like, or if the user stands up from the seat 200, a toilet cleaning operation in which washing water is supplied from the spout 811 into the basin 801 is performed. . Thereby, the dirt in the basin part 801 is discharged | emitted, and the surface of the basin part 801 is wash | cleaned.

As shown by an arrow A5 shown in FIG. 3 (a), the water spouting port 811 discharges washing water toward the rear. The washing water discharged from the water spouting port 811 flows over the mesa-shaped portion 805B provided along the basin edge portion 805, and as shown in FIG. 3 (b), a swirling flow SF swirling inside the basin portion 801 is formed.

The basin portion 801 includes a washing area 801A through which washing water passes, and a non-washing area 801B located above the washing area 801A and below the basin edge portion upper surface 806. The washing area 801A is an area where the washing water in the inner surface of the basin portion 801 passes and is wetted. The non-washing area 801B is an area where the washing water in the inner surface of the basin portion 801 does not pass. As shown in FIG. 3 (b), when viewed from above, the non-washed area 801B is generally annular along the basin edge portion 805, and the washed area 801A is located inside the non-washed area 801B.

For example, as shown in FIG. 2, the washing area 801A is an area that descends from the mesa-like portion 805B, and the non-washing area 801B includes the elevation of the pelvic edge portion 805 (the inner wall surface of the pelvic edge portion) above the mesa-like portion 805B. ).

Further, in the embodiment, the washing water may not be a method for forming the swirling flow SF. For example, the water spout 811 may discharge the washing water downward from the basin edge portion 805. Even in this case, the basin portion 801 has a washing area through which the washing water passes and a non-washing area located between the upper surface of the basin edge portion and the washing area and the washing water does not pass through.

FIG. 4 is a block diagram illustrating a configuration of a main part of the toilet seat device according to the embodiment.
Among them, FIG. 4 shows the structure of the main part of the waterway system and the electrical system together.
The toilet seat device 100 includes a solenoid valve 431, a sterilization device 450, a switching valve 472, a spray device 481, a nozzle motor 476, a nozzle 473, a nozzle cleaning chamber 478, and flow paths 110 to 113. These are arranged in the casing 400, for example. In addition, as shown in FIG. 35, they may be assembled inside the toilet 800.

The flow path 110 is a flow path for guiding water supplied from a water supply source (not shown) such as a water pipe and a water storage tank to a spray device 481, a nozzle 473, and the like. A solenoid valve 431 is provided on the upstream side of the flow path 110. The solenoid valve 431 is a solenoid valve that can be opened and closed, and controls the supply of water based on a command from a control device 405 provided inside the casing 400.

A sterilizing device 450 for generating sterilized water is provided on the flow path 110 downstream of the solenoid valve 431. The sterilization device 450 generates, for example, sterilized water containing chlorous acid and the like. An example of the sterilization device 450 is an electrolytic cell unit. The electrolytic cell unit electrolyzes the tap water flowing in the space (flow path) between the anode plate (not shown) and the cathode plate (not shown) under the control of the energization from the control device 405. The sterilized water is not limited to sterilized water containing chloric acid. For example, the sterilized water may be a solution containing metal ions such as silver ions, copper ions, a solution containing electrolytic chlorine, ozone, or the like, acid water or alkaline water, or the like. The sterilization device 450 is not limited to an electrolytic tank, and may have any structure capable of generating sterilized water.

The flow path 110 is provided with a switching valve 472 downstream of the sterilization device 450. A nozzle 473, a nozzle cleaning chamber 478, and a spray device 481 are provided downstream of the switching valve 472. The flow path 110 is branched by a switching valve 472 into a flow path 111 that guides water to the nozzle 473, a flow path 112 that guides water to the nozzle cleaning chamber 478, and a flow path 113 that guides water to the spray device 481. The switching valve 472 controls the opening and closing of each of the flow path 111, the flow path 112, and the flow path 113 based on a command from the control device 405. That is, the switching valve 472 controls the supply of water to the nozzle 473, the nozzle cleaning chamber 478, and the spray device 481. In addition, the switching valve 472 switches the flow rate of water supplied to the downstream thereof.

The nozzle 473 receives the driving force from the nozzle motor 476 and protrudes into the bowl portion 801 of the toilet 800 or moves backward from the bowl portion 801 of the toilet 800. That is, the nozzle motor 476 advances and retracts the nozzle 473 based on a command from the control device 405. The nozzle 473 is housed in the case 400 when not in use. The nozzle 473 spouts water from the spout 474 in a state of protruding forward from the casing 400, and cleans a part of the human body.

The nozzle cleaning chamber 478 cleans the outer peripheral surface (body) of the nozzle 473 by spraying sterilized water or tap water from a water spout provided in the nozzle cleaning chamber 478.

The spray device 481 makes the tap water or the sterilized water generated by the sterilization device 450 into a water mist. The spray device 481 sprays a water mist M (a water mist of sterilized water or a water mist of tap water) on the basin portion 801, the basin edge portion 805, and the seat portion 200, and the like. In other words, the spray device 481 causes the water mist of the sterilized water or the water mist of the tap water to impinge on the basin portion 801, the basin edge portion 805, the seating portion 200, and the like. Among them, in the specification of the present application, "impact water" means that water (sterilized water or tap water) is attached to the surface of an object. In particular, in the case of "directly hitting water", it means that water (sterile water or particles p of tap water) reaches the surface of an object from the air.

In addition, a motor 511 (rotating device) for a toilet seat, a motor 512 (rotating device) for a toilet cover, a blower 513, and a warm air heater 514 are provided inside the housing 400.
The toilet seat motor 511 opens and closes the seat part 200 electrically based on a command from the control device 405. The toilet lid motor 512 electrically rotates the toilet lid 300 based on a command from the control device 405 to open and close the toilet lid 300.

The air blowing device 513 is, for example, a fan provided inside the casing 400. The air blowing device 513 operates based on a command from the control device 405. For example, as the motor of the blower 513 rotates, the blades rotate. Thereby, the ventilation device 513 can blow air into the toilet 800 (for example, inside the bowl part 801). In addition, the air blowing device 513 may blow air to a part of the user sitting in the sitting part 200. The warm air heater 514 heats the air sent from the blower 513 to the outside of the casing 400. Thereby, the warm air can be sent toward the user's local area and the local area can be dried.

The toilet seat heater 515 (drying device) is provided inside the seating part 200, for example. The toilet seat heater 515 has, for example, a ring-shaped metal member provided along the periphery of an opening 200 a (FIG. 1) provided in the center of the seating portion 200. When the toilet seat heater 515 is energized based on an instruction from the control device 405, the toilet seat heater 515 heats the sitting portion 200. As the toilet seat heater 515, for example, a tube heater, a sheathed heater, a halogen heater, a carbon heater, or the like can be used. The metal member is made of, for example, aluminum, copper, or the like. The shape of the metal member can be various shapes such as a sheet shape, a line shape, and a mesh shape.

The control device 405 may use a circuit that is supplied with power from a power supply circuit (not shown). For example, the control device 405 includes an integrated circuit such as a microcomputer. The control device 405 controls the solenoid valve 431, the sterilization device 450, and the switch based on the detection information of the sensor 402 (such as the body sensor 403 or the seating sensor 404) that detects the user or the operation information of the manual operation unit 500. The valve 472, the nozzle motor 476, the spray device 481, the air supply device 513, the warm air heater 514, the toilet seat heater 515, the toilet seat motor 511, and the toilet cover motor 512.

The manual operation unit 500 is an operation unit for the user to spray the sterilized water at an arbitrary timing, for example. For example, the manual operation unit 500 is a remote control having a switch, a button, or the like. When the user operates the manual operation unit 500, operation information (signal) for instructing spraying of sterilized water is transmitted to the control device 405. The control device 405 controls the sterilization device 450 and the spray device 481 based on the operation information. Thereby, a user can spray the sterilized water by operating the manual operation part 500.
The manual operation unit 500 may include not only a switch and a button for spraying sterilized water but also a switch and a button for a user to operate various functions of the toilet seat device 100. When an operation corresponding to each function is performed, the operation information is transmitted to the control device 405, and the control device 405 controls the operations of the various parts of the toilet seat device 100 based on the operation information.

The seating sensor 404 can detect the seating state (presence or absence of seating) of the user in the seating section 200. The seating sensor 404 detects the seating and leaving of the user. The seating sensor 404 can use a microwave sensor, a ranging sensor (infrared projection sensor), an ultrasonic sensor, a touch switch, an electrostatic capacitance switch (touch sensor), or deformation sensing Device. In this example, as the seating sensor 404, a distance measuring sensor provided in the housing 400 is used.

In addition, when a touch sensor such as a touch switch, an electrostatic sensor, or a strain sensor is used, these touch sensors are provided in the seating portion 200. When the user sits on the sitting part 200, the touch switch is pushed down due to the weight of the user. Alternatively, the user is in contact with the static sensor. Alternatively, pressure is applied to the deformation sensor due to the weight of the user. The user's seating can be detected based on the electrical signals from these sensors.

The human body sensor 403 can detect a user who is located in front of the toilet 800, that is, a user who is present at a position away from the seat 200. That is, the human body sensor 403 can detect a user who enters the toilet and approaches the seat 200. As such a human body sensor, for example, a focus sensor, a microwave sensor, an ultrasonic sensor, or a distance sensor (infrared projection sensor) can be used. In this example, as the human body sensor 403, a focus sensor provided in a housing is used. In addition, the human body sensor 403 can detect a user immediately after entering the toilet door or a user immediately before entering the toilet, that is, a user who wants to enter the toilet and exists in front of the door. For example, when a microwave sensor is used, the presence of a user can be detected through a door of a toilet.

The control device 405 receives the detection information of the human sensor 403 (a signal indicating the presence or absence of the user) and the detection information of the seating sensor 404 (a signal indicating the presence or absence of the user), and based on the received information The detected information controls the operation of each part of the toilet seat device 100.

The control device 405 can execute three spray modes, namely, a toilet spray mode, a toilet spray mode, and a manual spray mode.
The toilet spray mode is, for example, an operation mode of automatically spraying the water mist of the sterilized water based on the detection information of the sensor 402 after the user uses the toilet device 10. The front spray mode is, for example, an operation mode for automatically spraying water spray of sterilized water or tap water based on the detection information of the sensor 402 before the user uses the toilet device 10. The manual spray mode is an operation mode for spraying water mist of the sterilized water based on the operation information of the manual operation unit 500.

5 (a) to 5 (e) are a plan view and a perspective view illustrating a toilet device according to the embodiment.
Fig. 5 (a) shows a state where a part of the flushing device 10 is viewed from the front.
FIG. 5 (b) is an enlarged view of a part of FIG. 5 (a). In addition, in FIG. 5 (b), a part of the casing 400 located in front of the spray device 481 is omitted for ease of visibility.
In a state where the toilet seat device 100 is installed on the upper part of the toilet 800, the spray device 481, the nozzle baffle 479, and the air baffle 516 are positioned on the rear upper portion of the basin portion 801.

The nozzle baffle 479 is rotatably supported with respect to the housing 400 by a shaft. The nozzle 473 is located behind the nozzle baffle 479 in a state where the nozzle 473 is retracted to the inside of the housing 400. When the human body part is washed, the nozzle 473 comes into contact with the nozzle baffle 479, the nozzle baffle 479 is rotated to open, and protrudes from the inside of the casing 400.

5 (c) to 5 (e) are enlarged perspective views showing the periphery of the nozzle baffle 479 and the blower baffle 516.
The blower baffle 516 is rotatably supported with respect to the casing 400 by a shaft. A blower 513 is arranged behind the blower baffle 516. The air baffle 516 covers the opening 516a of the casing 400. The air sent from the air blowing device 513 is sent into the toilet 800 through the opening 516a.

FIG. 5 (c) shows a state in which the blower device 513 has stopped operating, and FIGS. 5 (d) and 5 (e) show a state in which the blower device 513 operates and blows air into the basin 801.
As shown in FIG. 5 (c), when the air supply is stopped, the air supply shutter 516 is closed.
As shown in FIG. 5 (d), when the blower device 513 is operated, the blower baffle 516 is opened by the pressure (wind pressure) of the air sent from the blower device 513. Thereby, the ventilation device 513 blows air from the upper back part in the basin part 801 toward the lower front part in the basin part 801 like arrow A1, for example.
In the state of FIG. 5 (e), compared with the state of FIG. 5 (d), the amount of air delivered by the air supply device 513 is larger (or the wind speed is higher). At this time, compared with the state of FIG. 5 (d), the blower baffle 516 is further rotated to open. Thereby, the ventilation device 513 blows air from the upper back part in the basin part 801 toward the front upper part in the basin part 801 like arrow A2, for example.

As described above, the direction of the wind transmitted from the air blowing device 513 is changed by the air baffle 516. In other words, the blowing device 513 can control the blowing direction by the air volume (wind speed). The water mist spraying range can be adjusted by multiplying the water mist sprayed from the spraying device 481 with the airflow generated by the air supply from the air supply device 513, and the water spraying amount of the water mist in each range. The amount of sterilized water or tap water) is controlled.

6 (a) to 6 (c) are schematic views illustrating a spray device according to an embodiment.
FIG. 6 (a) is a perspective view of the spray device 481, and FIG. 6 (b) is a side view of the spray device 481.
The spray device 481 includes a motor 481a and a disk 481b connected to a lower portion of the motor 481a. The rotation of the motor 481a is controlled by the control device 405. When the motor 481a rotates, the rotational driving force is transmitted to the disk 481b, and the disk 481b rotates.

As shown in FIG. 6 (b), water W (tap water or sterilized water generated by the sterilizing device 450) is supplied to the upper surface of the tray 481b. When the water W is supplied during the rotation of the disk 481b, the spray device 481 sprays the water W into a water mist state.

FIG. 6 (c) is an enlarged view of a part of the disk 481b as viewed from above. The water W dripped onto the upper surface of the rotating disk 481b spreads into a film shape on the disk 481b by centrifugal force, and is radiated from the disk 481b. At this time, the water W is split from the vicinity of the edge of the disk 481b while remaining in a film shape, or is split into filaments, and then becomes fine particles p (water mist). The particle diameter (the diameter of the particles p) of the water mist can be controlled by the rotation speed of the disk 481b, that is, the rotation speed of the motor 481a. The higher the rotation speed, the smaller the particle size of the water mist. For example, a desired particle size can be obtained by suitably using low-speed rotation with a rotation speed of about 1000 rpm (rotation per minute), medium-speed rotation with a rotation speed of about 10,000 rpm, or high-speed rotation with a rotation speed of about 20,000 rpm. The particle size of the water mist can also be controlled by adjusting the flow rate of the water W supplied from the water supply port 481c to the spray device 481.

Here, in the specification of the present application, the particle diameter is the particle diameter of the particles p existing in the air before hitting the flushing device 10, and is, for example, the Sauter average particle diameter (total volume / total surface area). The measurement method of the "particle diameter" in the specification of the present application will be described later with reference to FIG. 34. The water mist refers to a range in which the particle diameter is 10 micrometers (μm) or more and 300 μm or less. If the particle diameter of the water mist is less than 10 μm, it takes a long time to wet the target parts such as the basin part 801, the basin edge part 805, and the sitting part 200. In addition, when sterilizing water containing chlorous acid is used, if the particle diameter of the water mist is less than 10 μm, the concentration of the chlorous acid in the water mist is likely to be attenuated, and the sterilizing performance is liable to decrease. On the other hand, if the particle diameter of the water mist is larger than 300 μm, it is difficult for the water mist to spread, and it is difficult to spray the water mist over a wide area. In the following description, a water mist having a large particle diameter is a water mist having a particle diameter in a range of 100 μm to 300 μm, and preferably a water mist having a particle diameter in a range of 150 μm to 300 μm. Water mist in a range of 50 μm to 200 μm, preferably in a range of 60 μm to 150 μm, and a water mist with a small particle diameter is a mist in a range of 10 μm to 100 μm, and preferably 10 μm to 60 μm Range of water mist.

For example, the particle size, flow rate, and direction of the water mist sprayed from the spray device 481 into the toilet 800 can also be adjusted by the position and number of the water supply ports 481c and the rotation direction (clockwise or counterclockwise) of the disc 481b. . Thereby, it is possible to control the water spraying range of the water spray sprayed from the spraying device 481 and the water spraying amount of the water mist in each range. In addition, a cover or the like that controls the direction in which the water mist is sprayed may be appropriately provided around the disk 481b.

FIG. 7 is a cross-sectional view illustrating a part of a toilet device according to a modification of the embodiment.
Fig. 7 shows a cross section taken along the line AA 'shown in Fig. 5 (a).
As shown in FIG. 7, a slit S is provided in the case 400. In this example, the spray device 481 is disposed in the casing 400, and the slit S is located at the lower front portion of the spray device 481. For example, the height (position in the vertical direction) of the upper end surface S1 of the slit S is the same as the height of the bottom surface B1 of the disk 481b, and the upper end surface S1 and the bottom surface B1 are on the same plane. Alternatively, the upper end surface S1 may be lower than the bottom surface B1.

The upper surface of the disc 481b is inclined from the horizontal, and the disc 481b sprays the water mist M slightly downward from the horizontal. The water mist M sprayed from the disc 481b passes through the slit S and is sprayed into the basin 801. Accordingly, it is possible to prevent dirt Y such as urine from adhering to the spray device 481 without destroying the design and cleaning performance of the flushing device 10. In addition, the shape of the disk 481b may be a flat circular plate shape, and irregularities may be provided as appropriate, or a conical shape or a sphere may be used. This also makes it possible to adjust the spray direction of the water mist, the particle size of the water mist, and the like.

In a state where the toilet seat device 100 is installed on the upper part of the toilet 800, the spray device 481 is disposed below a part of the seating part 200 (see FIG. 2), and sprays water mist into the toilet 800.

In the embodiment, the spray device is not limited to the device described with reference to FIGS. 6 and 7. For example, an ultrasonic atomizing device may be used as the spray device. The ultrasonic atomizing device irradiates the liquid with ultrasonic waves to make the liquid into a water mist. In addition, for example, a two-fluid nozzle may be used as the spray device. The two-fluid nozzle makes a liquid mist by spraying a gas and a liquid together. Among them, when the device described with reference to FIGS. 6 and 7 is used, there is an advantage that the spray range can be easily controlled by the air supply device 513. In addition, the risk of clogging is low, and additional equipment such as a compressor is not required.

8 (a) to 8 (c) are perspective views illustrating another toilet flushing device according to the embodiment.
In this example, a water mist baffle 482 is provided in front of the spray device 481. The water mist shutter 482 covers the slit S in front of the spray device 481 in a closed state.

The water mist baffle 482 is, for example, fixed to the nozzle baffle 479 and interlocks with the nozzle baffle 479. When the nozzle baffle 479 is opened, the water mist baffle 482 is also opened, and when the nozzle baffle 479 is closed, the water mist baffle 482 is also closed.

8 (b) and 8 (c) are enlarged views of the periphery of the nozzle baffle 479 and the water mist baffle 482. FIG. 8 (b) shows a state where the nozzle 473 is retracted to the inside of the casing 400. At this time, the nozzle shutter 479 is closed, and covers the front of the nozzle 473. The water mist barrier 482 is closed and covers the front of the slit S.

When the spray device 481 is not used, the spray device 481 is hidden from the basin part 801 side by the water mist baffle 482 as shown in FIG. 8 (b). This can further prevent urine and dirt from adhering to the spray device 481.

FIG. 8 (c) shows a state where the nozzle 473 protrudes forward and the nozzle shutter 479 is rotated. The extension distance of the nozzle 473 forward at this time may be shorter than the extension distance of the nozzle 473 forward when the human body is partially washed. For example, the tip of the nozzle 473 is in contact with the nozzle baffle 479. In addition, in FIG. 8 (c), the water mist shutter 482 rotates together with the nozzle shutter 479 and opens. The direction and range of the sprayed water mist can be controlled by the water mist baffle 482.

FIG. 9 is a flowchart illustrating an operation of the toilet seat device according to the embodiment.
10 (a) and 10 (b) are schematic views illustrating the operation of the toilet seat device according to the embodiment.
Fig. 10 (b) shows the target areas (P1 to P4) where the water of the sterilized water or the tap water mists. FIG. 10 (a) shows an example of the amount of water inflow (the amount of water inflow per unit area) of each target site in each spray pattern in four levels of “large”, “medium”, “small”, and “very small”.

The control device 405 is capable of executing a front spray mode: when the sensor 402 changes from a state in which the user is not detected to a state in which the user is detected, the spray device 481 is automatically controlled to remove mist or sterilize tap water A mist of water is sprayed into the basin 801.

For example, as shown in FIG. 9, if the user enters the toilet and the human sensor 403 detects the user's entry, a signal (detection information) indicating the user's entry is sent to the control device 405. The control device 405 automatically executes the front spray mode based on the signal. In the toilet spray mode, the control device 405 causes the spray device 481 to spray a water mist of tap water, and causes the water mist to impinge on the target site. As shown in FIGS. 10 (a) and 10 (b), the target parts in the front spray mode are the target part P3 (the non-washing area 801B of the basin 801) and the target part P4 (the washing area of the basin 801) 801A). In the front spray mode, the upper surface 806 of the pelvic edge portion of the seat portion 200 and the pelvic edge portion 805 is not a target area for spraying.

As described above, the water mist sprayed from the spray device 481 in the toilet spray mode not only impinges on the washing area 801A but also on the non-washing area 801B, and forms a water film in the washing area 801A and the non-washing area 801B. Thereby, it is possible to suppress the adhesion and adhesion of dirt within a wide range of the toilet 800 including the non-washing area 801B.

The control device 405 can execute the following toilet spray mode: when the sensor 402 changes from a state where the user is detected to a state where the user cannot be detected, the spray device 481 is automatically controlled to spray the mist of the sterilized water Into the toilet 800 and the seat 200.

For example, as shown in FIG. 9, if the user leaves the toilet and the human sensor 403 detects the user's departure, a signal (detection information) indicating the user's departure is sent to the control device 405. Based on the signal, the control device 405 automatically executes the toilet spray mode. In the toilet spray mode, the control device 405 causes the sterilization device 450 to generate sterilized water, and causes the spray device 481 to spray a water mist of the sterilized water, so that the water mist impinges on the target site. As shown in FIGS. 10 (a) and 10 (b), the target parts in the toilet spray mode are the target part P1 (the surface 203 of the sitting part 200), the target part P2 (the back face 204 of the sitting part 200, and the basin). Rim upper surface 806), target site P3, and target site P4.

In this way, by executing the toilet spray mode, after the user uses the toilet seat device 100, the sterilized water can be automatically poured into the toilet 800 and the seat 200. Thereby, it is possible not only to automatically suppress the generation of bacteria and dirt in the toilet 800, but also to automatically suppress the generation of bacteria and dirt in a wide range of the seating part 200 and the like.

When the user operates the manual operation unit 500, the control device 405 can control the spray device 481 to execute a manual spray mode of spraying the water mist of the sterilized water into the toilet 800 and the seat 200.

For example, as shown in FIG. 9, when the user enters the toilet (for example, after performing a toilet spray mode), if the manual operation unit 500 is operated, a signal (operation information) corresponding to the operation is transmitted to the control device. 405. The control device 405 executes a manual spray mode based on the signal. The manual spray mode is performed at timings such as before use, after use, and cleaning time of the toilet seat device 100. In the manual spray mode, the control device 405 causes the sterilization device 450 to generate sterilized water, the spray device 481 sprays a water mist of the sterilized water, and causes the water mist to impinge on the target site. As shown in FIGS. 10 (a) and 10 (b), the target parts in the manual spray mode are the target part P1, the target part P2, the target part P3, and the target part P4.

In this way, by using the manual spray mode when the manual operation unit 500 is operated, the sterilized water is poured into the toilet 800 and the seat 200, so that the generation of bacteria and dirt can not only be suppressed in the toilet 800, but also in the toilet 800. A large area including the sitting part 200 suppresses the generation of bacteria and dirt. In addition, the user can remove bacteria and dirt generated in the sitting part 200 by wiping off the water mist of the sterilizing water in the sitting part 200. For example, it is possible to sterilize adherent dirt which is difficult to be suppressed by the post-pray spray mode by using sterilizing water which wipes off water with a toilet paper or the like. In addition, for example, a user who is mindful of the dirt of the sitting part 200 before using the toilet seat device 100 can sterilize the sitting part 200 by a manual spray mode. Since the sterilization is performed based on the user's own operation, it is possible to improve the user's peace of mind and satisfaction.

11 is a cross-sectional view illustrating an operation in a front spray mode of the toilet seat device according to the embodiment.
As shown in FIG. 11, the non-washed area 801B of the bowl portion 801 has a front-end-side non-washed area 801F. The front-end-side non-washing area 801F is a front end portion of the non-washing area 801B, and is, for example, located at the center in the left-right direction of the basin portion 801. The front-end-side non-washing area 801F includes the foremost end of the non-washing area 801B, and is an area extending from the upper end of the washing area 801A up and down to the upper surface 806 of the basin edge portion.

In order to suppress the adhesion of dirt and the like in the bowl portion 801, it is preferable that a large amount of water mist is also impinged on the non-washing area 801B so that a water film is formed. In view of this, a method may be considered in which the air supply device 513 is operated to generate an air flow in the basin portion 801 and the water mist is allowed to reach the non-washing area 801B by the air flow. However, in this case, there may be a case where the water mist traveling by the air flow still hits the seating portion 200 and the upper surface 806 of the basin edge portion. Therefore, when the user is seated on the sitting part 200 or when the user rotates the sitting part 200 by hand, the user's buttocks, hands may come into contact with the water mist splashed on the sitting part 200, and there is a possibility of causing unpleasant feeling. In addition, since the upper surface 806 of the basin edge portion is formed substantially horizontally, there is a possibility that water mist on the upper surface 806 of the basin edge portion may drip out of the toilet 800.

In view of this, in the front spray mode, the control device 405 does not operate the blower device 513 that generates an updraft in the bowl portion 801. In addition, in the front spray mode, in order to prevent the water mist on the upper surface 806 of the basin edge from dripping out of the toilet 800 and the water mist directly on the front non-washing area 801F, the control device 405 controls The speed of the water mist sprayed by the spraying device 481 is controlled so that the water mist sprayed from the spraying device 481 reaches the front non-washing area 801F while maintaining a straight forward state.

Thereby, although a large amount of water mist is caused to impinge on the non-washing area 801B, the water mist does not float on the updraft generated by the air supply device 513, so it is possible to suppress the water on the upper surface 806 of the edge of the basin. The amount of water mist in the seat 200. With this, it is possible to prevent the water mist dripping on the upper surface 806 of the basin edge portion from dripping out of the toilet 800. In addition, it is possible to suppress the seat part 200 from being wetted by water mist, and to suppress the user's buttocks, hands, and water from sitting on the seat part when the user is seated on the seat part 200 or when the seat part 200 is turned by hand. 200 water mists are in contact with this situation.

Among them, in the specification of the present application, the "water mist that hits water" includes water droplets and water films formed by condensation or the like after the water mist hits the water.

For example, in the front spray mode, the control device 405 controls the speed of the water mist (the speed at which the particles p are flying) and the particle size of the water mist by controlling the rotation speed of the disk 481b of the spray device 481. For example, the higher the speed of the water mist, the easier it is for the water mist to maintain a straight forward state.

In FIG. 11 (and FIG. 14, FIG. 17, FIG. 20, FIG. 24, FIG. 25, FIG. 27, FIG. 28, FIG. 30, and FIG. 31 described later), the water mist M sprayed from the spraying device 481 is indicated by arrows. path. The thicker the arrow, the greater the amount of water mist. As shown in FIG. 11, the range in which the water mist is sprayed has a width above and below.

FIG. 12 is a schematic view illustrating a water mist sprayed by the spraying device of the embodiment.
The particle size of the water mist sprayed from the spraying device 481 has a distribution. For example, as shown in FIG. 12, a small-diameter water mist M1 (fine particles p1 of tap water or sterilized water) and a medium- or large-diameter water mist M2 (tap water or sterilized water) are sprayed from the spray device 481. Particles p2). The fine particles p2 of the water mist M2 easily travel horizontally or downwardly because of their large weight. On the other hand, since the fine particles p1 of the water mist M1 are small in weight, they may travel upward due to the influence of the air flow.

Therefore, as shown in FIG. 11, the amount of water mist impinging on the front end side non-washing area 801F is also distributed. In the front-end-side non-washing area 801F, the portion where the most water mist directly hits the water is the volume zone BZ. In the embodiment, the control device 405 controls the spray device 481 so that the water mist reaching the volume area BZ maintains a straight forward state.

FIG. 13 is a schematic diagram for explaining a linearly advancing state of the water mist.
It is determined as follows whether the water mist sprayed from the spraying device 481 maintains a straight forward state.
The spraying object OB is arranged at a position away from the spray device 481 (the disc 481b) by a distance L in the horizontal direction. The distance L is, for example, a horizontal distance (approximately 300 to 400 mm) between the spray device 481 and the front-end non-washing area 801F.

A water mist is sprayed from the spray device 481 to the spray target OB, and the water injection point Pt1 of the water mist in the spray target OB is measured. The impingement point Pt1 is a point where the most water mist in the spray object OB directly impinges on the water. For example, by receiving water mist using a water-sensitive test paper or a transparent board, and observing the distribution of water droplets, the water point Pt1 can be visualized.

The spraying direction Ds (spraying angle θs) of the water mist sprayed by the spraying device 481 is measured. The spraying direction Ds refers to the direction of the water mist sprayed most near the spraying device 481. The vicinity of the spray device 481 refers to a range in which the distance from the spray device 481 is within 50 mm, for example. For example, an image of the spray device 481 that sprays water mist can be acquired, and the spray direction Ds can be measured by image processing. Alternatively, the sprayed water mist may be visualized by irradiating the sheet laser with water mist, and the spray direction Ds may be measured. The spray angle θs refers to the angle between the horizontal direction and the spray direction Ds.

The height h1 of the intersection point Pt2 of the straight line L1 extending from the spraying device 481 in the spraying direction Ds and the spraying object OB is calculated. The height h1 is the distance in the vertical direction between the spray device 481 and the intersection point Pt2, and is calculated by L × tanθs. In addition, the actual water height h2 was measured. The landing height h2 is the distance in the up-down direction between the spray device 481 and the landing point Pt1.

When the landing height h2 is the same as the height h1, it is determined that the water mist sprayed from the spraying device 481 has reached the spray target OB while maintaining a straight forward state. Among them, the same range of the height h2 and the height h1 includes the case where the difference between the height h2 and the height h1 is within 20 mm.

14 is a cross-sectional view illustrating an operation in a front spray mode of the toilet seat device according to the embodiment.
FIG. 14 is an enlarged view of the periphery of the front-end-side non-washing region 801F shown in FIG. 11.
As shown in FIG. 14, the front-end non-washing region 801F includes an upper region 821 and a lower region 822. In addition, the upper region 821 includes an arc portion 823 and a water mist guide portion 824.

The arc portion 823 includes an upper end of the front-end-side non-washing area 801F, and has a curved surface shape that is inclined downward toward the inside of the basin portion 801. The water mist guide portion 824 is provided below the arc portion 823 and has a downward slope toward the outside of the basin portion 801. Alternatively, the water mist guide portion 824 may extend in the vertical direction. The water mist guide portion 824 is continuous with the arc portion 823.

The arc portion 823 is located near the upper surface 806 of the rim portion. Therefore, when the spraying direction Ds of the water mist sprayed by the spraying device 481 is a direction in which a large amount of water mist hits the arc portion 823, the upper surface 806 of the basin edge portion is easily wetted. In this case, there is a possibility that water mist on the upper surface 806 of the basin edge portion may drip out of the toilet 800. In addition, since the arc portion 823 has a downward slope toward the inside of the basin portion 801, the water mist reaching the arc portion 823 is reflected by the arc portion 823 and easily splashes toward the basin edge portion upper surface 806 side. In particular, if the speed of the water mist is increased so that the water mist reaches the non-washing area 801B while maintaining a straight forward state, the water mist is liable to splash.

On the other hand, in the embodiment, the spray direction Ds of the mist sprayed by the spray device 481 is set to spray the spray mist from the spray device 481 and reach the front non-washing area 801F while maintaining a straight forward state. The portion 823 is positioned below. This can reduce the amount of water mist that reaches the upper surface 806 of the basin edge portion located above the arc portion 823. In addition, even when the speed of the water mist is increased in order to maintain a straight forward state, it is possible to suppress the water mist from splashing toward the upper surface 806 side of the basin edge portion.

In the example shown in FIG. 14, the water mist guide portion 824 has a downward slope toward the outside of the bowl portion 801 and guides the water mist reaching the front-end non-washing area 801F downward. For example, the water mist reaching the water mist guide 824 is reflected downward. Accordingly, even when the speed of the water mist is increased so that the water mist reaches the front-end non-washing area 801F while maintaining a straight forward state, the water mist can be prevented from splashing toward the upper surface 806 side of the basin edge portion.

In addition, a spray portion (for example, a tray 481 b) that sprays water mist is provided below a part of the seating portion 200. In addition, the spraying direction Ds in which the spraying device 481 sprays the water mist is set obliquely below the front end side non-washing area 801F. Thereby, the water mist reaching the front-end-side non-washing area 801F is liable to splash downward. That is, the water mist is easily reflected downward in the front end side non-washing area 801F. Therefore, even when the speed of the water mist is increased so that the water mist reaches the front-end non-washing area 801F while maintaining a straight forward state, the water mist can be prevented from splashing toward the upper surface 806 side of the basin edge portion.

In addition, the spray device 481 is arranged so that an imaginary line segment L2 (see FIG. 11) connecting the spray section (for example, the disc 481 b) and the front-end non-washing area 801F does not intersect the seat section 200. The spray direction Ds is set so that the water mist reaching the front-end non-washing area 801F while maintaining a straight forward state is sprayed along the line segment L2. Thereby, it is possible to suppress the seat part 200 from being wet with water mist, and to make the water mist impinge on the non-washing area 801B.

In the front spray mode, the control device 405 controls the spray device 481 so that the average water impingement per unit area of the water mist directly impinging on the upper area 821 of the front-side non-washing area 801F is less than the direct water impinging. The average water impingement per unit area of the water mist in the lower region 822 of the front end side non-washing region 801F.

Specifically, for example, in the front spray mode, the control device 405 controls the spray device 481 so that the particle diameter of the water mist directly hitting the lower region 822 is larger than the particle diameter of the water mist directly hitting the upper region 821. By increasing the particle size of the water mist directly impinging on the lower region 822, the average water impingement per unit area of the water mist directly impinging on the lower region 822 can be increased. In addition, by reducing the particle size of the water mist directly impinging on the upper region 821, the average water impingement per unit area of the water mist directly impinging on the lower region 822 can be reduced.

At this time, if the average water impingement per unit area of the water mist directly impinging on the upper region 821 is, for example, an amount of water impingement of about 1 (μL / cm ² ), it is possible to suppress the adhesion and adhesion of dirt in the upper region 821. Moreover, it is possible to suppress the water mist from splashing on the upper surface 806 of the basin edge portion and the sitting portion 200. Thereby, it is possible to prevent the water mist dripping on the upper surface 806 of the basin edge portion from dripping out of the toilet. In addition, it is possible to suppress the seat part 200 from being wetted by water mist, and to suppress the user's buttocks, hands, and water from sitting on the seat part when the user is seated on the seat part 200 and when the seat part 200 is rotated by hand. 200 mists of water.
In addition, in the lower region 822, since the possibility that the water mist splashes on the upper surface 806 of the basin edge portion and the seating portion 200 is low, the average impact per unit area of the water mist directly hitting the lower region 822 is The amount of water is larger than the average amount of water per unit area of the water mist directly impinging on the upper region 821, and it is possible to suppress the adhesion and adhesion of dirt in the lower region 822.

FIGS. 15 (a) to 15 (c) are schematic diagrams for describing a method for measuring an average water impingement per unit area of a water mist directly impinging on an upper region and a lower region of a non-washing region.
First, a first measurement position SU including an upper region 821 including a front-side non-washing region 801F and a second measurement position SL including a lower region 822 including a front-side non-washing region 801F are set. The ranges in the left-right direction of the first measurement position SU and the second measurement position SL are each a range with a width of 100 mm centered on the tip of the non-washing region 801B. The range of the vertical direction of the first measurement position SU is substantially the same as the range of the vertical direction of the upper region 821, and the range of the vertical direction of the second measurement position SL is substantially the same as the range of the vertical direction of the lower region 822.

After spraying water mist on the front end side non-washing area 801F for a predetermined time, the first measurement position SU and the second measurement position SL were wiped with absorbent paper (manufactured by Crecia, Japan), respectively. Thereby, the water-absorbent paper is made to absorb the water mist of the water of the 1st measurement position SU and the 2nd measurement position SL.
The predetermined time for spraying the water mist is determined according to the spray flow rate Q (L / min) of the water mist. When the spray flow rate Q is Q <0.03 L / min, the predetermined time is set to 10 seconds. When the spray flow rate Q is 0.03 L / min ≦ Q <0.2 L / min, the predetermined time is set to 4 seconds. When the spray flow rate Q is Q ≧ 0.2 L / min, the predetermined time is set to 2 seconds.

The difference between the weight of the water-absorbent paper that absorbed the water mist impinged on the first measurement position SU and the weight of the water-absorbent paper before the water mist impregnated the water was the amount of water impingement on the water mist impinged on the first measurement position SU. The value obtained by dividing the amount of water impingement of the water mist impinging on the first measurement position SU by the area of the first measurement position SU is taken as the average impingement per unit area of the water mist impinging directly on the upper region 821.

Similarly, the difference between the weight of the water-absorbent paper that absorbed the water mist impinged on the second measurement position SL and the weight of the water-absorbent paper before the water mist impregnated the water is the amount of water injection of the water mist impinged on the second measurement position SL. . A value obtained by dividing the amount of water spray of the water mist impinging on the second measurement position SL by the area of the second measurement position SL is taken as the average amount of water per unit area of the water mist directly impinging on the lower region 822.

In addition, instead of wiping each measurement position with a water-absorbent paper, spraying may be performed with the water-absorbent paper adhered to each measurement position, so that the water-absorbent paper absorbs water mist. For example, the absorbent paper that was originally formed as a 4-fold fold is unfolded, and the absorbent paper in an unfolded state is cut into a shape along each measurement position. The cut absorbent paper was stuck to each measurement position.

In the above example, the arc portion 823 and the water mist guide portion 824 are the upper region 821, and the position lower than the lower end of the water mist guide portion 824 is the lower region 822. It is not limited to this, and the boundary between the upper region 821 and the lower region 822 may be the center in the vertical direction of the front end side non-washing region 801F. In other words, the region above the center in the up-down direction of the front-side non-washing region 801F may be an upper region 821, and the region below the center in the up-down direction of the front-side non-washing region 801F may be a lower region 822. .

16 (a) and 16 (b) are cross-sectional views illustrating a non-washing area on the front end side of the toilet according to the embodiment.
As shown in FIG. 16 (a), the upper region 821 has an inclined surface (a water mist guide portion 824) which is inclined downward toward the outside of the basin portion 801. As described above, the water mist guide portion 824 (the inclined surface of the upper region 821) guides the water mist downward.

On the other hand, as shown in FIG. 16 (b), the lower region 822 has an inclined surface that is inclined downward toward the inside of the bowl portion 801. Thereby, the lower region 822 guides the water mist reaching the lower region 822 upward. Thereby, a part of the water mist reaching the lower region 822 is caused to impinge on the upper region 821, and the amount of water impingement (indirect water impingement) in the upper region 821 can be increased. Among them, since the inclined surface of the upper region 821 is provided above the inclined surface of the lower region 822, it is possible to prevent the water mist guided upward by the inclined surface of the lower region 822 from passing over the upper region 821 and splashing onto the basin edge portion. Surface 806.

For example, the inclination angle θ1 of the upper region 821 is larger than the inclination angle θ2 of the lower region 822. The inclination angle θ1 is an angle between the vertical direction and the inclined surface (water mist guide 824) of the upper region 821. The inclination angle θ2 is an angle between the vertical direction and the inclined surface of the lower region 822.

By making the inclination angle θ1 large, the water mist reaching the upper region 821 can be guided more downward. In addition, by making the inclination angle θ2 small, the amount of water mist guided upward by the lower region 822 can be suppressed. Since the inclination angle θ1 is greater than the inclination angle θ2, the water mist guided by the lower region 822 to the upper region 821 decelerates on the inclined surface of the upper region 821, so the water mist guided by the lower region 822 to the upper region 821 will not splash to the basin edge部 上 表面 806. The upper surface 806.

17 (a) and 17 (b) are cross-sectional views illustrating operations in a front spray mode and an automatic toilet lid opening mode of a toilet seat device.
The control device 405 can execute an automatic toilet lid opening mode: when the sensor 402 changes from a state where no user is detected to a state where the user is detected, the toilet lid motor 512 is automatically controlled to change the toilet lid 300 from The closed state becomes the open state.

For example, when the user is not in the toilet, the toilet cover 300 is in a closed state. Then, if the user enters the toilet and the human sensor 403 detects the user's entry, the control device 405 executes an automatic toilet lid opening mode. In addition, the control device 405 executes the front toilet spray mode during execution of the automatic toilet lid opening mode.

For example, if the automatic toilet lid opening mode is executed and the toilet lid 300 is opened like the arrow A6 in FIG. 17 (a) and FIG. 17 (b), the toilet lid 300 is opened in the basin part 801 and the basin part. An updraft f1 is generated in the periphery of 801. In the example of FIG. 17 (a), a part of the water mist M sprayed by the front spray mode rises to a position above the basin portion 801 by the updraft air flow f1. In this case, the water mist rising to a position higher than the basin portion 801 impinges on the seating portion 200 and the upper surface 806 of the basin edge portion.

In contrast, in the example of FIG. 17 (b), the control device 405 controls the particle diameter of the water mist sprayed by the spraying device 481 so that the water mist flying toward the front-side non-cleaning area 801F does not pass the updraft. f1 rises to a position higher than the basin part 801. Specifically, the control device 405 limits, for example, the rotation speed of the disk 481b of the spray device 481 so that the particle diameter of the water mist is not too small.

Thereby, even if the updraft f1 is generated by the automatic toilet lid opening mode, it is possible to prevent the water mist from reaching the upper surface 806 of the basin edge portion and the seating portion 200 and to reach the non-washing area 801B. Therefore, it is possible to suppress the water mist dripping on the upper surface 806 of the basin edge portion from dripping out of the toilet 800. In addition, it is possible to suppress the seat part 200 from being wetted by water mist, and to suppress the user's buttocks, hands, and water from sitting on the seat part when the user is seated on the seat part 200 and when the seat part 200 is rotated by hand. 200 mists of water.

The range in which the water mist does not rise to a position higher than the basin part 801 by the upward air flow f1 may include not only the case where the entire water mist does not rise to a position higher than the basin part 801, but also does not cause the user to generate When a small amount of water mist of an unpleasant degree rises to a position higher than the basin part 801.

FIG. 18 is a time chart illustrating an operation in a front spray mode of the toilet seat device according to the embodiment.
19 (a) and 19 (b) are plan views illustrating operations in the front spray mode of the toilet seat device according to the embodiment.
As shown in FIG. 18, for example, at the timing T1, the user's entry is detected by an entry detection mechanism such as a human sensor 403. Then, the control device 405 starts the execution of the automatic toilet lid opening mode and the toilet spray mode. Thereby, the toilet lid 300 in a closed state starts to be opened, and spraying of water mist into the bowl portion 801 is started. The opening action of the toilet cover 300 is continued from the timing T1 to the timing T4, and the toilet cover 300 is fully opened at the timing T4.

(B) in FIG. 19 illustrates a range in which the water sprayed from the spray device 481 hits the water during the period from the timing T1 to the timing T2. In this way, the control device 405 controls the spray device 481 in a period of time immediately after the front spray mode and the automatic toilet lid opening mode are started, so that water is sprayed on the area other than the non-washing area 801B (wash Net area 801A).

FIG. 19 (a) illustrates a range in which water sprayed from the spray device 481 hits the water during a period from the timing T2 to the timing T3. During the period from the timing T2 to the timing T3, the control device 405 controls the spray device 481 so that the water mist impinges on the non-washing area 801B.

Then, during a period from timing T3 to timing T4, the control device 405 controls the spray device 481 so that the water mist hits the washing area 801A again.

Moreover, before the timing T5 after the timing T4, the automatic toilet lid opening mode and the toilet bowl spray mode are ended. For example, the user is seated at the sitting portion 200 at the timing T5.

The magnitude of the updraft f1 accompanying the opening action of the toilet lid 300 caused by the automatic toilet lid opening mode is likely to become the maximum immediately after the toilet lid 300 is opened from the closed state (that is, when the toilet lid starts to open). On the other hand, in the embodiment, the control device 405 starts spraying of water mist toward the front non-washing area 801F after the automatic toilet lid opening mode is started. That is, as shown in FIG. 18, at the timing T2 after the timing T1 at which the automatic toilet lid opening mode is started, the spray of the water mist to the front non-washing area 801F is started. Thereby, it is possible to further suppress the water mist from rising to a position higher than the basin portion 801 by the upward air flow f1.

In addition, the faster the toilet lid 300 is opened, the larger the magnitude of the updraft air f1 accompanying the opening action of the toilet lid 300 due to the automatic toilet lid opening mode. In this regard, as shown in FIG. 18, the control device 405 controls the toilet lid motor 512 so that the speed at which the toilet lid 300 is opened in the first time period (timing T1 to timing T2) immediately after the automatic toilet lid opening mode is started. The speed at which the toilet lid 300 is opened in the second period (timing T2 to timing T3) after the first period is lower. Thereby, the updraft f1 can be reduced immediately after the automatic toilet lid opening mode is started. Therefore, it is possible to further suppress the water mist from rising to a position higher than the basin portion 801 by the updraft f1 caused by the automatic toilet lid opening mode.

In addition, the control device 405 controls the spray device 481 so that water is sprayed on the area other than the front-side non-washing area 801F in the third time period (timing T1 to timing T2) immediately after the automatic toilet lid opening mode is started. In the fourth time period (timing T2 to timing T3) after the third time period, water mist hits the front non-washing area 801F. Thereby, it is possible to further suppress the water mist from rising to a position higher than the basin portion 801 by the updraft f1 caused by the automatic toilet lid opening mode.

20 (a) and 20 (b) are cross-sectional views illustrating operations in a toilet spray mode or a manual spray mode of the toilet seat device according to the embodiment.
FIG. 20 (b) is an enlarged view of a region R4 shown in FIG. 20 (a).
The dotted arrows indicate the air flow formed by the air blowing device 513 (the same applies to FIG. 24, FIG. 27, FIG. 28, and FIG. 30 described later). As shown in FIG. 20 (a), in the toilet spray mode or the manual spray mode, the blower 513 blows air forward and downward. At least a part of the air sent from the air blowing device 513 hits the inside of the toilet 800 (the washing area 801A or the non-washing area 801B) and faces upward. As a result, an updraft U1 is formed which rises upward from the inside of the toilet 800 below the sitting part 200 to the upper part of the sitting part 200.

For example, in the toilet spray mode or the manual spray mode, a part of the water mist is radiated from the spray device 481 toward the non-washing area 801B. In addition, water having a relatively large particle diameter sprayed water on the washing area 801A. The water mist with a relatively small particle diameter splashes on the upper surface 806 of the basin edge portion, the seating portion 200, the toilet seat cover 300, and the like by the updraft U1. Thereby, it is possible to sterilize each corner of the flushing device 10 including the non-washing area 801B, the upper surface of the basin edge portion 806, the seating portion 200, and the toilet cover 300.

Generally, tap water contains scale components (e.g., sodium, calcium, potassium, magnesium, etc.). In this case, the water mist of the sterilized water produced from the tap water also contains a scale component. When the water mist containing the scale component evaporates after being impregnated with water on the toilet seat device 100 or the like, the scale is analyzed at the portion where the water mist impinges on the water, and scale and dirt which may be visually observed may be generated in a short period of time.

In view of this, in one embodiment of the toilet seat device 100, the toilet spray mode includes not only a mode for spraying water mist onto the toilet 800 and the seat 200 (second mode), but also a method for spraying water mist only into the toilet 800. First mode. In the one-time toilet spray mode, the control device 405 executes any one of the first mode and the second mode.

For example, in the first mode, the control device 405 stops the air supply device 513 or controls the particle size of the water mist so that the water mist only hits the water in the toilet 800 (the washing area 801A and the non-washing area 801B). In the first mode, by spraying water mist of sterilized water into the toilet 800, it is possible to suppress the generation of bacteria and dirt in the toilet 800. In addition, the water rust component contained in the water mist impinging on the toilet 800 is washed away by the washing water flowing into the toilet 800. Therefore, with the first mode of spraying water mist only into the toilet 800, it is possible to suppress the generation of bacteria and dirt in the toilet 800, and it is possible to suppress the visually-observable scale and dirt from being generated by the scale components at the edge of the basin. The upper surface 806, the seating part 200, the toilet seat 300, and the like.

On the other hand, in the second mode, the control device 405 operates the blower device 513 or controls the particle diameter of the water mist, so that the water mist impinges on the seating portion 200 and the like, for example, as in the example of FIG. 20. In the second mode, spraying the water mist of the sterilized water into the toilet 800 and the sitting part 200 can not only suppress the generation of bacteria and dirt in the toilet 800, but also suppress the generation of bacteria and dirt in the sitting part 200.

Furthermore, in the toilet spray mode, the control device 405 executes either the first mode or the second mode, which can reduce the water mist from adhering to the sitting part 200 as compared with the case where the second mode is executed each time. Frequency of. Thereby, it is possible to extend the period from which the scale that has precipitated due to the evaporation of the attached water mist grows until the scale scale can be visually observed. Therefore, it is possible to suppress generation of visually-observable scale and dirt in a region in which the washing water does not flow, such as the seating portion 200, the toilet seat 300, and the upper surface 806 of the basin edge portion, in a short time.

In addition, regardless of whether the first or second mode is executed in the toilet spray mode, since the mist of sterilized water is sprayed into the toilet 800 which is prone to dirt, the toilet spray mode can be performed reliably. To reduce the frequency of sweeping by the user. In addition, since the sitting part 200 is a place where dirt is less likely to be generated than in the toilet 800, it is difficult to generate visually observable dirt even if the mist of sterilized water is not sprayed onto the sitting part 200 every time.

In addition, in the first mode, the range in which the water mist only hits the toilet 800 may include not only the case where all the water mist hits the toilet 800, but also a small amount that does not increase the degree of visible scale and dirt. The case where the water mist hits the seat 200 or the like.

21 is a flowchart illustrating an operation in a toilet spray mode of the toilet seat device according to the embodiment.
While the user is in the toilet, the toilet spray mode is not executed (step S101: No). If the user leaves the toilet and the sensor 402 changes from a state where the user is detected to a state where the user cannot be detected (step S101: Yes), the control device 405 closes the seat 200 and the toilet seat 300, and starts post-purge spraying. mode.

At this time, the control device 405 automatically determines which one of the first mode and the second mode of the toilet spray mode is performed (step S102). Thereby, since the user does not have to select any one of the first mode and the second mode, the burden on the user can be reduced.

For example, in step S102, the control device 405 determines that the execution frequency of the second mode is lower than the execution frequency of the first mode. Since the execution frequency of the second mode is low, it is possible to reduce the amount of the water mist containing the scale components attached to the seating part 200. Therefore, it is possible to extend the period during which the scale deposits and grows until the scale dirt can be visually observed.

More specifically, for example, when a predetermined time has elapsed since the execution of the last second mode or when the first mode is executed a predetermined number of times after the execution of the last second mode (step S102) : Yes), the control device 405 executes the second mode again (step S103), and the post-spray mode ends. Thereby, since the second mode is executed periodically, it is possible to suppress generation of scale and dirt which can be visually observed in a short period of time, and also suppress generation of bacteria and scale caused by dirt.

On the other hand, if a predetermined time has not elapsed since the execution of the last second mode, or when the first mode has not been executed a predetermined number of times after the execution of the last second mode (step S102: No ), The control device 405 executes the first mode (step S104), and the post-spray mode ends. In addition, the predetermined time and the predetermined number of times in step S102 may be appropriately determined so that scale and dirt are not generated in a short period in consideration of the concentration of scale components contained in the tap water and the spray amount of water mist.

22 is a flowchart illustrating another operation in a toilet spray mode of the toilet seat device according to the embodiment.
In the toilet spray mode, the control device 405 can determine which one of the first mode and the second mode to execute based on the selection of the manual operation by the user. For example, the manual operation unit 500 is provided with a switch or a button for the user to select which of the first mode and the second mode to execute.

The user performs an input operation to select any one of the first mode and the second mode in the manual operation unit 500. The control device 405 receives information indicating which mode the user has selected (step S201).

When the user selects the first mode in the manual operation unit 500, if the sensor detects the user's departure (step S202: Yes), the control device 405 executes the first mode (step S203), and then sprays The mode ends. When the user's departure is not detected, the toilet spray mode is not executed (step S202: No).
When the user selects the second mode in the manual operation unit 500, if the sensor detects the user's departure (step S204: Yes), the control device 405 executes the second mode (step S205), and then sprays The mode ends. When the user's departure is not detected, the toilet spray mode is not executed (step S204: No).

As described above, in the toilet spray mode, the control device 405 executes any one of the first mode and the second mode based on the user's selection in the manual operation unit 500. That is, the user can set in advance which of the first mode and the second mode is executed by operating the manual operation unit 500.

For example, if the setting is not changed, the control device 405 executes one of the first mode and the second mode each time in the toilet spray mode. The concentration of scale components contained in tap water varies by region. In a region where the concentration of scale components is low, even if the second mode of spraying water mist onto the seating part 200 is performed every time, the period until the scale and dirt which can be visually observed due to the scale components is generated is long. In such a region, by executing the second mode in the toilet spray mode, it is possible to suppress the generation of bacteria and dirt caused by dirt and reduce the frequency of cleaning. On the other hand, in a region where the concentration of scale components is high, if the second mode in which water mist is sprayed on the seating part 200 is performed, scales and stains that can be visually observed due to scale components are likely to be generated in a short period of time. . In such an area, the second mode in which the water mist is not sprayed onto the sitting part 200 can reduce the frequency of cleaning. By using the manual operation unit 500 to select which of the first mode and the second mode is to be executed by the user, the frequency of cleaning can be reduced in both areas where the concentration of scale components contained in the tap water is high and areas where the concentration is low.

In addition, a switch, a button, or the like may be provided in the manual operation unit 500 for the user to select at least one of the execution frequency of the first mode and the execution frequency of the second mode. For example, when the second mode is executed when a predetermined time has elapsed since the execution of the second mode last time, the user can select the predetermined time in the manual operation section 500. In addition, for example, when the second mode is executed when the first mode is executed a predetermined number of times after the execution of the second mode last time, the user can select the predetermined number of times in the manual operation unit 500. The control device 405 executes at least one of the first mode and the second mode based on a user's selection (set frequency) in the manual operation unit 500. Thereby, the execution frequency of the first mode or the execution frequency of the second mode can be selected according to the concentration of scale components contained in tap water in the area where the toilet seat device 100 is used, so that the frequency of cleaning can be lowered.

FIG. 23 is a flowchart illustrating another operation in the toilet spray mode of the toilet seat device according to the embodiment.
In the example shown in FIG. 23, the toilet spray mode is controlled to spray only the mist of the sterilized water into the toilet 800. In other words, the first mode described above is executed each time. FIG. 23 also illustrates an operation in the manual spray mode. In this example, the manual spray mode is similar to the example described with reference to FIG. 9 and FIG. 20, and sprays the water mist of the sterilized water into the toilet 800 and the seat 200.

If the user leaves the toilet and the sensor 402 changes from a state where the user is detected to a state where the user is not detected (step S301: Yes), the control device 405 starts a post spray mode. Only the water mist of the sterilized water is sprayed into the toilet 800 (step S302), and the post-spray mode is ended. In the toilet spray mode, by not spraying the sterilized water on the sitting part 200 or the like, it is possible to suppress generation of visually visible scale and dirt due to scale components in a short period of time.

When the user does not leave the toilet (step S301: No), if the user operates the manual operation unit 500 (step S303: Yes), the control device 405 starts a manual spray mode. The water mist of the sterilized water is sprayed on the toilet 800 and the seat 200 (step S304), and the manual spray mode is ended. When the user does not operate the manual operation unit 500 (step S303: No), the manual spray mode is not executed.

Since the manual spray mode is a mode in which a user wipes with paper or the like after spraying, the frequency of execution of the manual spray mode tends to be lower than that of the toilet spray mode. Therefore, like the example shown in FIG. 23, by spraying water mist into the toilet 800 only in the toilet spray mode, and spraying water mist into the toilet 800 and the seat 200 in the manual spray mode, the water mist can be reduced. The frequency of attachment to the sitting part 200. Thereby, it is possible to extend the period from which the scale components precipitated by the evaporation of the attached water mist grow until the scale scales can be visually observed. Therefore, it is possible to suppress generation of visually observable scale and dirt in a region in which the washing water such as the seating part 200 does not flow in a short period of time.

24 (a) and FIG. 24 (b) are cross-sectional views illustrating operations in a front spray mode and a back spray mode of the toilet seat device according to the embodiment.
As shown in FIG. 24 (a), the front spray mode sprays the water mist of tap water or sterilized water to the washing area 801A and the non-washing area 801B, so that the tap water or sterilizing water stays in the washing area 801A and the non-washing The clear region 801B forms a water drop WD1 or a water film WF1. For example, the control device 405 reduces the particle size of the water mist or controls the amount of water sprayed by the water mist in the front spray mode to hold the water mist.

Then, if the user leaves the toilet, the toilet spray mode is executed. As shown in FIG. 24 (b), in the toilet spray mode, the water of the sterilized water is sprayed on the water drops WD1 or the water film WF1 formed in the non-washing area 801B in the toilet spray mode. In this way, the toilet spray mode flushes the water drops WD1 or the water film WF1 by increasing the volume of the water drops WD1 or the water film WF1. That is, as the volume increases and the weight itself increases, the water drops WD1 or the water film WF1 formed in the non-washing area 801B flow down to the washing area 801A. In the toilet spray mode, the first step and the second step may be continuous in time.
For example, when the user is detected by the sensor 402 due to accidental entry, and the first step of the front spray mode is performed, the second step is performed to cause the water droplets WD1 or the water film formed on the non-washing area 801B. WF1 shed.

The water mist sprayed in the front toilet spray mode stays in the washing area 801A and the non-washing area 801B. For example, the water droplet WD1 or the water film WF1 does not flow before the toilet spray mode is performed. Thereby, compared with the case where only the inside of the bowl part 801 is wet, it is possible to further suppress the adhesion and adhesion of dirt. In the toilet spray mode, the water of the sterilized water sprayed from the spray device 481 sprays water on the non-washing area 801B. This makes it possible to suppress the generation of bacteria and dirt caused by dirt that is not washed away by the washing water.

In addition, when the water droplets WD1 or the water film WF1 formed by the front spray mode remain in a state of being adhered to the non-washing area 801B and remain, the water rust may precipitate due to evaporation of the water droplets WD1 or the water film WF1. The non-washing area 801B generates scale and dirt. On the other hand, by washing away the water drops WD1 or the water film WF1 formed in the non-washed area 801B by the toilet spray mode, it is possible to suppress the water drops WD1 or the water film WF1 from remaining in the non-washed area 801B. This makes it possible to suppress generation of scale and dirt. Therefore, it is possible to suppress generation of bacteria and dirt in a wide range of the toilet 800 including the non-washed area 801B, and to suppress generation of visually visible scale and dirt in the non-washed area 801B in a short period of time.

25 (a) and FIG. 25 (b) are cross-sectional views illustrating other actions in the front spray mode of the toilet seat device according to the embodiment.
In this example, the front spray mode includes a first step shown in FIG. 25 (a) and a second step shown in FIG. 25 (b).

As shown in FIG. 25 (a), in the first step, water mist is impinged on the non-washed area 801B, and a water drop WD1 or a water film WF1 is formed in the non-washed area 801B. In addition, in the first step, the water mist may also impinge on the washing area 801A to form a water droplet or a water film.

As shown in FIG. 25 (b), the second step causes water mist to impinge on the water droplets WD1 or the water film WF1 formed in the non-washing area 801B in the first step. Therefore, the second step flushes away the water drops WD1 or the water film WF1 by increasing the volume of the water drops WD1 or the water film WF1. That is, as the volume increases and the weight itself increases, the water drops WD1 or the water film WF1 formed in the non-washing area 801B flow down to the washing area 801A.

By using the second step to wash away the water drops WD1 or the water film WF1 formed in the non-washed area 801B by the first step, it is possible to suppress the water drops WD1 or the water film WF1 from remaining in the non-washed area 801B. This makes it possible to suppress generation of scale and dirt. Therefore, it is possible to suppress the generation of bacteria and dirt in a wide range of the toilet 800 including the non-washed area 801B, and to suppress the generation of visually visible scale and dirt in the non-washed area 801B in a short period of time.

In addition, in the front spray mode, if the water mist is sprayed such that the water mist immediately flows down, the particle size and flow rate of the water mist are large, so there is a water mist splashing in the bowl 801 to the toilet 800. The risk of splashing outside. In contrast, in this example, after the water drop WD1 or the water film WF1 is formed in the first step, the volume of the water drop WD1 or the water film WF1 is increased in the second step, so that the water drop WD1 or the water film WF1 flows down. This can prevent water mist from splashing out of the toilet.

26 (a) and 26 (b) are plan views illustrating a toilet and a toilet seat according to the embodiment.
FIG. 26 (a) shows the back surface 204 side of the sitting portion 200. A toilet seat leg 210 is provided on the back surface 204 of the seating section 200. The toilet seat leg 210 is provided so as to protrude from the back surface 204 and is in contact with the upper surface 806 of the rim of the toilet 800 in a state where the seat 200 is closed. In this example, a total of four toilet seat legs 210 are provided, but the number and shape of the toilet seat legs 210 are arbitrary.

As shown in FIG. 26 (b), the upper surface 806 of the bowl edge portion of the toilet 800 has an area 810 in which the toilet seat leg 210 is in contact with the seat 200 closed.

In a spray mode (for example, a toilet spray mode or a manual spray mode) in which the water mist of the sterilized water is sprayed on the upper surface 806 of the rim portion and the sitting portion 200, the water mist exists when the toilet seat 300 is opened. There is a possibility of splashing to the outside of the toilet 800 and the toilet seat device 100. Therefore, in order to suppress the splash of water mist, it is desirable that the toilet seat 300 and the seat 200 are closed. On the other hand, in the spray mode of spraying the water mist of the sterilized water on the upper surface 806 of the basin edge portion and the sitting portion 200, if the toilet seat 300 and the sitting portion 200 are closed, the The area 810 on the surface 806 and the toilet seat leg 210 are in contact with each other, so that water cannot be sprayed on the area 810 and the toilet seat leg 210. In addition, in a state where the toilet seat 300 and the seating portion 200 are closed, the upper surface 806 of the basin edge portion is close to the seating portion 200, so it is difficult for water mist to reach the outer peripheral portion 204e and the basin edge of the back surface 204 of the seating portion 200 The outer peripheral part 806e of the part upper surface 806.

In view of this, in one embodiment of the toilet seat device 100, the toilet spray mode or the manual spray mode has a first step and a second step described below.
27 (a) and 27 (b) are cross-sectional views illustrating operations in the toilet spray mode or the manual spray mode of the toilet seat device according to the embodiment.
Fig. 27 (a) shows the first step, and Fig. 27 (b) shows the second step. As shown in FIG. 27 (a), in the first step, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512 so that the seating portion 200 and the toilet lid 300 are closed (fully closed). . In a state where the toilet seat 300 is closed, the first step sprays the water mist of the sterilized water on the upper surface 806 of the basin edge portion and the seating portion 200. In the first step, since the toilet cover 300 is closed, it is possible to prevent water mist from splashing to the outside of the toilet 800 and the toilet seat device 100, and also to spray a large amount of water mist onto the upper surface 806 of the rim of the basin and seat Department 200.

As shown in FIG. 27 (b), in the second step, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512 so that the seating portion 200 and the toilet lid 300 are opened. In a state where the seating part 200 and the toilet cover 300 are opened, the second step sprays the water mist of the sterilized water on the upper surface 806 of the basin edge part and the seating part 200. Thereby, in the second step, the water mist of the sterilized water is sprayed on the area 810 in contact with the toilet seat leg 210 on the upper surface 806 of the basin edge. In the second step, since the seat part 200 is opened, the water mist can still be made to hit the area 810 of the toilet seat leg 210 and the upper surface 806 of the bowl edge part. In addition, the water mist also easily hits the outer peripheral portion 806e of the upper surface 806 of the basin edge portion and the outer peripheral portion 204e of the seating portion 200.

The control device 405 executes the second step after performing the first step in the one-time toilet spray mode and the manual spray mode, for example. Alternatively, the first step may be performed after the second step. With the first and second steps described above, it is possible to suppress the splash of water mist to the outside of the toilet 800 and the toilet seat device 100, and to make a large amount of water spray on the upper surface 806 of the basin edge including the toilet seat. The wide area of the area 810 that the leg 210 contacts prevents the generation of bacteria and dirt.

In addition, in the second step of the toilet spray mode or the manual spray mode, the range in which the seat 200 and the toilet cover 300 are open includes not only the fully open state but also the half-open state. The fully open state refers to a state where the opening degree is the largest during normal use. The half-open state refers to a state where the opening degree is smaller than the fully-open state. That is, the half-open state refers to a state between the fully-open state and the fully-closed state, and is not limited to a case where the opening degree is half of the fully-open state.

In the second step, if the sitting part 200 is in a fully opened state, since the toilet seat leg 210 is far from the upper surface 806 of the basin edge part, it is difficult to make water spray on the toilet seat leg 210. On the other hand, in the example shown in FIG. 27 (b), the control device 405 controls the toilet seat motor 511 in the second step so that the sitting portion 200 is in a half-open state. Therefore, the distance between the toilet seat leg 210 and the upper surface 806 of the basin edge portion can be shortened as compared with the case where the sitting portion 200 is in the fully opened state. Thereby, in the second step, the water mist of the sterilized water can be caused to hit the toilet seat leg portion 210 that the water mist of the sterilized water is difficult to reach in the first step.

In addition, for example, the control device 405 controls the spray device 481 so that the total amount of water mist (ml) sprayed on the sterilized water on the upper surface 806 side of the bowl edge portion in the first step is greater than that sprayed on the bowl in the second step. The total amount (ml) of water mist of the sterilized water on the edge upper surface 806 side. For example, the total amount of water mist of the sterilized water impinging on the upper surface 806 of the basin edge portion in the first step is greater than the total amount of water mist of the sterilizing water on the upper surface 806 of the basin edge portion in the second step. . In the first step, a large amount of sterilized water sprays water on the upper surface 806 of the rim portion, which can further suppress the generation of bacteria and dirt in the upper surface 806 of the rim portion. At this time, in the first step, since the toilet cover 300 is in a closed state, even if a large amount of water mist is sprayed, there is little risk that the water mist will splash out of the toilet 800 and the toilet seat device 100. On the other hand, in the second step in which the toilet seat 300 is opened together with the seating portion 200, compared with the first step, water mist is more likely to splash out of the toilet 800 and the toilet seat device 100. In view of this, by making a relatively small amount of water mist impinge on the upper surface 806 of the rim portion in the second step, it is possible to suppress the water mist from splashing to the outside of the toilet 800 and the toilet seat device 100.

Specifically, for example, the control device 405 controls the spray device 481 so that the time for spraying the water mist of the sterilized water on the upper surface 806 side of the basin edge portion in the first step is longer than that on the upper surface 806 of the basin edge portion in the second step. Time for side spray of water with sterilized water. That is, for example, the time for performing the first step is longer than the time for performing the second step. Thereby, the total amount of water mist sprayed on the upper surface 806 side of the basin edge portion in the first step can be made larger than the total amount of water mist sprayed on the upper surface 806 side of the basin edge portion in the second step.

28 (a) and 28 (b) are cross-sectional views illustrating operations in the second step of the toilet spray device or the manual spray mode of the toilet seat device according to the embodiment.
In the second step of the toilet spray mode or the manual spray mode, the control device 405 can control the toilet seat motor 511 and the toilet lid in a state where the water mist of the sterilized water is sprayed on the upper surface 806 side of the rim portion of the basin. The motor 512 moves at least one of the sitting part 200 and the toilet seat 300. FIG. 28 (a) shows a state in which the sitting portion 200 is moved in the opening direction in the second step. When the seating part 200 is turned upward from the bottom like the arrow A7, the air flow f2 (ascending air flow) is generated in the vicinity of the upper surface 806 of the basin edge part. By multiplying the water mist of the sterilized water by the air flow f2, the water of the sterilized water can be caused to impinge on a larger range of the upper surface 806 of the basin edge portion.

In addition, FIG. 28 (b) shows a state where the seating portion 200 is moved in the closing direction in the second step. When the seat part 200 is rotated from the upper direction downward like the arrow A8, the air flow f3 is produced in the vicinity of the upper surface 806 of the basin edge part. Thereby, the water mist in the vicinity of the upper surface 806 of the basin edge portion is diffused, so that the water mist of the sterilized water can impinge on a larger range of the upper surface 806 of the basin edge portion.

In the example shown in FIGS. 28 (a) and 28 (b), although the control device 405 moves the seat part 200, the toilet cover 300 can also be moved in the same manner. In the second step, the control device 405 may stop one of the seating portion 200 and the toilet cover 300, move the other, or may move both of them.

FIG. 29 is a plan view illustrating a toilet device according to the embodiment.
In FIG. 29, the toilet 800 is indicated by a solid line. In addition, the outer case 400 of the toilet seat device 100 placed on the upper surface of the toilet 800, that is, the upper surface 806 of the rim portion, is indicated by a dotted line.

The housing 400 (main body portion) of the toilet seat device 100 is placed on the rear portion of the upper surface 806 of the basin edge portion. That is, the basin edge portion upper surface 806 includes a non-mounting portion 806f on which the case 400 is not placed, and a mounting portion 806r on which the case 400 is placed. The mounting portion 806r is located behind the non-mounting portion 806f. The placement portion 806r refers to a portion of the upper surface 806 of the basin edge portion that overlaps the housing 400 in the vertical direction, and the placement portion 806r may not be in contact with the housing 400.

A gasket 490 is provided between the casing 400 and the mounting portion 806r on the upper surface 806 of the basin edge portion. The gasket 490 matches the shape of the housing 400 and is disposed in a front portion of the placement portion 806r. Accordingly, it is possible to prevent washing water, water mist, dirt, and the like from entering the rear side of the pad 490.

A gap SP is formed between the mounting portion 806r and the case 400 at a position forward than the pad 490. For example, in the toilet spray mode or the manual spray mode, when not only the water mist of the sterilized water is sprayed into the bowl portion 801, but also the water mist of the sterilized water on the upper surface 806 of the bowl edge portion, the sterilized water may be used. Water mist enters the gap SP. Since the gap SP is a part that is difficult for a user to visually observe, the water mist that enters the gap SP and hits the mounting portion 806r may unknowingly become a large water drop WD2 or a water film WF2, and then generate a toilet 800 Water dripping outside.

In view of this, in the toilet spray mode or the manual spray mode, the spray device 481 has an average amount of water per unit area of the sterilized water impinging on the non-mounting portion 806f more than the sterilizing water impinging on the setting portion 806r. The sterilized water is sprayed in such a manner that the average amount of water per unit area of the water hits. It is preferable that the spray device 481 makes the sterilized water stand on the non-mounting portion 806f, and keeps the sterilized water on the set portion 806r.

By placing a large amount of sterilized water on the non-mounting portion 806f as compared with the mounting portion 806r, it is possible to suppress the generation of bacteria and dirt in the non-mounting portion 806f. Compared with the mounting portion 806r, the non-mounting portion 806f is a portion that is easy to dry because air is less likely to be trapped, and is a portion that is easier for a user to observe and wipe. Therefore, even if the sterilized water is poured on the non-mounted portion 806f of the upper surface 806 of the basin edge portion, the sterilized water unknowingly condenses on the non-mounted portion 806f to become a large water droplet or a water film and exits the toilet 800. The possibility of dripping is also very low. In addition, by reducing the amount of sterilized water that is placed on the mounting portion 806r, it is possible to prevent the sterilized water from unknowingly condensing on the mounting portion 806r to become a large water droplet or a water film and dripping out of the toilet 800. . Therefore, when a mist of sterilized water is sprayed on the upper surface 806 of the rim portion of the toilet 800, water leakage to the outside of the toilet 800 can be suppressed.

The average water impingement per unit area can be measured as follows.
First, after the toilet spray mode or the manual spray mode is performed, the water mist on the non-mounting portion 806f is wiped off with a water-absorbent paper. The difference between the weight of the absorbent paper before wiping the water mist and the weight after wiping the water mist is divided by the area of the wiped non-mounted portion 806f to calculate the sterilized water in the non-mounted portion 806f. Average water volume per unit area.
Similarly, after the toilet spray mode or the manual spray mode is performed, the water mist on the mounting portion 806r on the front side with respect to the pad 490 is wiped off with absorbent paper. Calculate the unit of sterilized water in the mounting portion 806r by dividing the difference between the weight of the absorbent paper before the water mist is removed and the weight after the water mist is wiped off by the area of the wiped mounting portion 806r. The area's average water catch.

30 is a cross-sectional view illustrating an operation in a toilet spray mode or a manual spray mode of the toilet seat device according to the embodiment.
FIG. 31 (a) and FIG. 31 (b) are perspective views illustrating operations in the toilet spray mode or the manual spray mode of the toilet seat device according to the embodiment.
In this example, the spray device 481 includes a first water spouting section 51 and a second water spouting section 52. For the first water spouting unit 51, for example, a nozzle capable of spraying (spraying) tap water or sterilizing water is used. The second water spouting unit 52 uses, for example, the aforementioned disc 481b.

The flow path 113 that guides water to the spray device 481 is branched into a flow path that supplies water to the first spouting portion 51 and a flow path that supplies water to the second spouting portion 52. The water supply to each spouting unit is controlled by the control device 405. The first spouting unit 51 and the second spouting unit 52, for example, simultaneously spray (spray) sterilized water.

FIG. 31 (a) illustrates an operation of the second spouting unit 52 in the toilet spray mode or the manual spray mode. The second spouting portion 52 causes the sterilized water to stand on the non-mounting portion 806f of the upper surface 806 of the basin edge portion. In addition, the second spouting portion 52 also causes the sterilized water to stand in the basin portion 801 at a position closer to the front side than the second spouting portion 52.

For example, the second spouting unit 52 sprays a mist of sterilized water forward and downward. A part of the sprayed water mist rises to a position above the upper surface 806 of the basin edge portion by the updraft U1 formed by the blower 513. As a result, the mist of the sterilized water impinges on the non-mounting portion 806f, the seating portion 200, and the toilet cover 300.

FIG. 31 (b) illustrates the operation of the first spouting unit 51 in the toilet spray mode or the manual spray mode. The first spouting portion 51 sprays (sprays) the sterilized water backward and downward, so that the sterilized water stands in the basin portion 801 at a position on the rear side (side of the placing portion 806r) of the first spouting portion 51.

The spray device 481 is provided inside or below the casing 400. In addition, the sterilized water sprayed from the spray device 481 gradually drops due to its own weight. Therefore, in order to make the sterilized water stand on the non-mounting portion 806f, it is preferable to spray the sterilized water from a high position. In view of this, as shown in FIG. 30, the second water spouting section 52 is disposed above the first water spouting section 51 (nozzle water spouting port). Thereby, the sterilized water can be made to stand in the non-mounting part 806f more reliably. On the other hand, in order to prevent the sterilized water from standing on the mounting portion 806r, it is preferable to spray (spray) the sterilized water from a low position. By disposing the first water spouting portion 51 (nozzle water spout) lower than the second water spouting portion 52, it is possible to further suppress the sterilized water from standing in the placing portion 806r.

In addition, since the second spouting part 52 makes the sterilized water stand on the non-mounting part 806f of the upper surface 806 of the basin edge part that the user may touch, the second spouting part 52 is expected to be clean. In view of this, the second water spouting portion 52 is disposed inside the casing 400. In addition, the second water spouting portion 52 (disc 481b) is located above the upper surface 806 of the basin edge portion. Thereby, it is possible to prevent dirt from adhering to the second water spouting portion 52 and to ensure the cleanliness of the second water spouting portion 52.

On the other hand, since the first spouting portion 51 makes the sterilized water stand on the side of the mounting portion 806r in the basin portion 801, which has a low possibility of contact with the user, the first spouting portion 51 and the second spouting portion 52 are in phase with each other. Than cleanliness is difficult to be a problem. In view of this, the first water spouting portion 51 is arranged to protrude downward from the case 400. For example, the first water spouting portion 51 (nozzle water spout) is located below the upper surface 806 of the basin edge portion. Thereby, the 1st water spouting part 51 can be arrange | positioned at a low position, and it can suppress further that the sterilized water stands in the mounting part 806r.

In addition, the spray device 481 (the second spouting portion 52) is formed such that at least a part of the sterilized water sprayed from the mounting portion 806r side (rear side) of the spray device 481 in a plan view does not ride on the updraft U1. On the other hand, the spraying device 481 (the first water spouting section 51) is formed by multiplying at least a part of the sterilized water sprayed on the non-mounting portion 806f (front side) from the spraying device 481 in a plan view by the updraft U1.

Specifically, the spray device 481 makes the sterilized water sprayed on the mounting portion 806r side of the spray device 481 in a plan view into a spray shape, a film shape, or a water mist shape with a first particle diameter. In addition, the spray device 481 makes the sterilized water sprayed out of the non-mounting portion 806f side of the spray device 481 in a plan view into a water mist shape having a second particle diameter smaller than the first particle diameter.

With this, the sterilized water sprayed from the spray device 481 to the non-mounting portion 806f side is more likely to ride the updraft than the sterilized water sprayed to the mount 806r side, and it is possible to make a large amount of sterilization water stand in the non-mount 806f. In contrast, the sterilized water sprayed from the spray device 481 to the mounting portion 806r side is more difficult to ride the updraft than the sterilized water sprayed to the non-mounted portion 806f side, and the sterilized water can be prevented from standing on the mounting portion 806r.

The comparison between the size of the first particle diameter and the size of the second particle diameter can use an average value or a median value of the particle size distribution of the water mist. In addition, the shower shape and the film shape are shapes of water larger than the water mist particles. The weight of the spray-shaped and film-shaped sterilized water is greater than the weight of the water mist particles of the first particle size. The spray-shaped sterilizing water may be filamentous or large granular. The shape and size of the sterilized water sprayed toward the mounting portion 806r can be adjusted by, for example, the shape of the water spout of the first water spouting portion 51 or the like.

In FIGS. 30 and 31, a case where two water spouting portions are provided is described. However, the number of the spouting portions may be one or three or more. By appropriately changing the spray direction, spray range, and particle size of the water mist, a large amount of sterilized water can be poured into the non-mounting portion 806f, and the sterilized water can be prevented from pouring into the mounting portion 806r.

32 is a flowchart illustrating an operation in a manual spray mode of the toilet seat device according to the embodiment.
When the user operates the manual operation unit 500, the control device 405 can execute the manual spray mode based on the operation information of the manual operation unit 500. Here, if the operation of the manual operation part 500 is continuously performed for a short period of time and the manual spray mode is continuously performed for a short period of time, the seat part 200 may be excessively wetted. As a result, there is a possibility that the user who is in contact with the water mist splashed on the sitting part 200 may feel unpleasant, or the water mist splashed may drop out of the toilet 800.

In view of this, in the example shown in FIG. 32, the control device 405 has a continuous manual spray prohibition mode. When the manual operation unit 500 is operated again within a predetermined time after the manual spray mode is executed (before a predetermined time elapses from the end of the manual spray mode), the continuous manual spray prohibition mode elapses from the end of the manual spray mode to a predetermined time. It is forbidden to execute the manual spray mode again before time. In addition, when the manual operation unit 500 is operated again during execution of the manual spray mode, the continuous manual spray prohibition mode is also prohibited from executing the manual spray mode again until a predetermined time elapses from the end of the manual spray mode.

For example, as shown in FIG. 32, when the user operates the manual operation unit 500 and inputs the start of the manual spray mode (step S401: Yes), the control device 405 performs whether a predetermined time has elapsed since the end of the last manual spray mode. Judgment (step S402). When a predetermined time has elapsed (step S402: Yes), the control device 405 executes a manual spray mode (step S403). On the other hand, when the manual spray mode is being performed or when a predetermined time has not elapsed since the end of the last manual spray mode (step S402: No) and the wiping action described later is not detected (step S404: No), The control device 405 executes the continuous manual spray prohibition mode. That is, the manual spray mode is not performed.

In this way, even if the manual operation unit 500 is operated during execution of the manual spray mode or within a predetermined time after the execution, the manual spray mode is not executed again by the continuous manual spray prohibition mode. Thereby, even if the manual operation of spraying water mist is continuously performed for a short period of time, it is possible to suppress excessive water mist from hitting the seating portion 200. It is possible to prevent a large amount of water mist from hitting the seat 200 and causing a user to feel uncomfortable, and the water mist dripping from the seat 200 to drip out of the toilet 800.

The predetermined time in step S402 is, for example, set to a time in which the water mist does not drip out of the toilet 800 even if the water mist further strikes the seat 200 when the manual spray mode is executed again. The predetermined time is appropriately determined according to the amount of water mist sprayed in the manual spray mode, and is, for example, 10 seconds or more and 5 minutes or less. The predetermined time may be the time when the water mist that has hit the seat 200 in the previous manual spray mode evaporates.

The user can remove the bacteria and dirt adhering to the sitting part 200 by wiping off the water mist which has been poured into the sitting part 200 due to the manual spray mode by using toilet paper or the like. When the user still wipes out almost all of the water mist in the sitting part 200 and there is still dirt in the sitting part 200, there is a case where the user wants to execute the manual spray mode again to wipe off the remaining dirt. Happening. In this case, waiting for a predetermined time is inconvenient for the user.

In view of this, the control device 405 has a manual spray release mode in which execution of the continuous manual spray prohibition mode is canceled before a predetermined time elapses from the end of the manual spray mode, and the manual spray mode can be executed again. Thereby, even if a predetermined time has not elapsed since the last manual spray mode, execution of the manual spray mode can be performed again to improve the convenience of use.

The toilet seat device 100 includes a wiping action detection mechanism that detects a situation in which the user has performed a wiping action on the seat 200. The control device 405 executes the manual spray release mode based on the detection information of the wiping action detection mechanism.

As shown in FIG. 32, when it is detected by the wiping motion detection mechanism that the user performs a wiping motion (step S404: Yes), the manual spray release mode is executed. That is, it becomes possible to perform the manual spray mode again and execute the manual spray mode (step S403).

As the wiping motion detection mechanism, for example, the seating sensor 404 can be used. The control device 405 estimates the presence or absence of the wiping operation based on the detection information of the seating sensor 404. By using the seating sensor 404, it is possible to more reliably detect a user's wiping action on the seating portion. For example, when the seating sensor 404 is a sensor capable of detecting a load applied to the seating part 200, it can be used based on the magnitude of the load applied to the seating part 200 and the time during which the load is applied. The person performed the wiping action for detection. In addition, for example, when the seating sensor 404 is a sensor capable of acquiring a distance to a human body, it is possible to detect that the user has performed a wiping operation based on a change in the distance.

In addition, although the user operates the manual operation section 500 in order to execute the manual spray mode, there is a case where the user mistakenly thinks of the toilet seat when the manual spray mode is not performed due to the continuous manual spray prohibition mode and the water mist is not sprayed. The device 100 is likely to malfunction. In view of this, when the wiping action of the user is not detected (step S404: No), the control device 405 reports that the continuous manual spray prohibition mode has been executed by the reporting mechanism (step S405). This can prevent misidentification by the user. The reporting organization may use any organization capable of reporting using sound or light. For example, as a reporting mechanism, a speaker, an LED, a liquid crystal display, or the like can be appropriately provided in the manual operation section 500 or the casing 400.

In addition, the toilet seat device 100 includes an operation unit (for example, a manual operation unit 500) for a user to input when a wiping operation is performed on the sitting unit 200. The control device 405 executes the manual spray release mode based on the input information input to the operation unit. For example, if a user operates a switch or the like of the manual operation unit 500, the input information (signal) is transmitted to the control device 405, and the control device 405 executes the manual spray release mode when the input information is received (step S406: Yes). Thereby, it becomes possible to perform the manual spray mode again and execute the manual spray mode (step S403). By using such an operation portion, it is possible to more surely detect a user's wiping action on the seat portion 200, thereby improving the convenience of use. In addition, the user can operate the operation section as needed even if the user does not perform the wiping operation.

In the case where the user does not input the operation portion when the seat portion 200 has been wiped (step S406: No), the execution of the manual spray mode is maintained from the end of the manual spray mode until a predetermined time elapses. Prohibited status.

33 is a flowchart illustrating another operation in the manual spray mode of the toilet seat device according to the embodiment.
In the example shown in FIG. 33, the control device 405 has two manual spray modes, a first manual spray mode and a second manual spray mode. The total amount of water mist of the sterilized water sprayed in the second manual spray mode is less than the total amount of water mist of the sterilized water sprayed in the first manual spray mode. For example, the spray time in the second manual spray mode is shorter than the spray time in the first manual spray mode.

The first manual spray mode is an operation mode in which the spray device 481 is controlled to spray the water mist of the sterilized water to the sitting portion 200 when the user operates the manual operation portion 500.

On the other hand, if the manual operation unit 500 is operated again within a predetermined time after the first manual spray mode is executed (before a predetermined time elapses from the end of the first manual spray mode), the second manual spray mode controls the spray device. At 481, the water mist of the sterilized water is sprayed to the sitting part 200. In addition, when the manual operation unit 500 is operated again during the execution of the first manual spray mode, the second manual spray mode also controls the spray device 481 to spray the water mist of the sterilized water to the seat 200.

In other words, the first manual spray mode is prohibited from being executed again until a predetermined time elapses from the end of the first manual spray mode, and the second manual spray mode is executed instead.

For example, as shown in FIG. 33, when the user operates the manual operation unit 500 and inputs the start of the manual spray mode (step S501: Yes), the control device 405 determines whether a predetermined time has passed since the end of the first manual spray mode last time. Time is judged (step S502). When the predetermined time has elapsed (step S502: Yes), the control device 405 executes the first manual spray mode (step S503). On the other hand, when the first manual spray mode is being executed or a predetermined time has not elapsed since the end of the first first manual spray mode (step S502: No), and no wiping action is detected (step S504: No) ), The control device 405 executes the second manual spray mode.

In this way, when the manual operation unit 500 is operated during execution of the first manual spray mode or within a predetermined time after the execution, the second manual spray mode with a smaller spray volume than the first manual spray mode is executed. Thereby, even if the manual operation of spraying water mist is continuously performed, it is possible to suppress excessive water mist from hitting the seating portion 200. It is possible to prevent a large amount of water mist from hitting the seat 200 and causing a user to feel uncomfortable, and the water mist dripping from the seat 200 to drip out of the toilet 800.

The predetermined time in step S502 is, for example, set to a time in which the water mist does not drip out of the toilet 800 even when the first manual spray mode is executed again and the water mist further strikes the seat 200. . The predetermined time is appropriately determined depending on the amount of water mist sprayed, and is, for example, 10 seconds or more and 5 minutes or less. The predetermined time may also be the time when the water mist that has hit the seat 200 in the previous first manual spray mode evaporates.

In the case where the user wants to further wipe off the dirt remaining on the seat part 200 after performing the first manual spray mode, if the spray amount of the water mist is small due to the second manual spray mode, the dirt is difficult to wipe off Inconvenient situation.

In view of this, the control device 405 has a manual spray release mode capable of executing the first manual spray mode again before a predetermined time elapses from the end of the first manual spray mode. Thereby, even if a predetermined time has not elapsed since the first manual spray mode last time, execution of the first manual spray mode can be performed again, and convenience in use can be improved.

As shown in FIG. 33, when it is detected by the wiping motion detection mechanism that the user performs a wiping motion (step S504: Yes), the manual spray release mode is executed. That is, it becomes possible to perform execution of the first manual spray mode again and execute the first manual spray mode (step S503).
In addition, when the user operates the manual operation unit 500, if the second manual spray mode is performed instead of the first manual spray mode, and the spray amount of water mist is small, the user may mistakenly believe that the toilet seat device 100 has occurred. Risk of failure. In view of this, when the wiping action of the user is not detected (step S504: No), the control device 405 reports that the second manual spray mode has been executed by the reporting mechanism (step S505). This can prevent misidentification by the user.

In addition, if the operation part for the user to input the wiping action on the seat part 200 is operated, the input information (signal) is transmitted to the control device 405, and the control device 405 executes it when it receives the input information. Manual spray release mode (step S506: Yes). Thereby, it becomes possible to perform execution of the first manual spray mode again and execute the first manual spray mode (step S503).

When the user does not perform an input operation to perform a wiping operation on the seat 200 (step S506: No), the second manual spray mode is executed (step S507).

34 (a) and 34 (b) are perspective views illustrating a method for measuring the particle diameter of the embodiment.
The particle diameter can be measured by a laser diffraction method. When a particle is irradiated with laser light, diffracted scattered light is generated from the particle in various directions. The intensity of the diffracted scattered light has a spatial pattern in the direction in which the light is emitted. This spatial pattern is called a light intensity distribution pattern. The light intensity distribution pattern changes depending on the particle diameter of the fine particles. The particle diameter can be calculated by using the correlation between the particle diameter of the fine particles and the light intensity distribution pattern and detecting the light intensity distribution pattern.

As shown in FIGS. 34 (a) and 34 (b), the particle diameter measuring device 600 includes a light emitting section 601 and a light receiving section 602. The light receiving section 602 is provided so as to be able to receive laser light emitted from the light emitting section 601. In the measurement of the particle size, the laser light emitted from the light emitting portion 601 is irradiated to the water mist M sprayed from the spray device 481. The light receiving unit 602 receives diffracted scattered light generated by laser irradiation. Thereby, a light intensity distribution pattern can be detected. As the measurement device, Aerotrac LDSA-3500A (manufactured by MicrotracBEL Co., Ltd.) can be used.

FIG. 35 is a block diagram illustrating a configuration of a main part of a flushing device according to a modification of the embodiment.
Among them, FIG. 35 shows the structure of the main part of the water system and the electrical system together.
As shown in FIG. 35, in this example, a solenoid valve 431, a sterilization device 450, a switching valve 472, a spray device 481, a nozzle motor 476, a nozzle 473, a nozzle cleaning chamber 478, and flow paths 110 to 113 are assembled in The interior of the toilet 800. In this example, a toilet seat motor 511 (rotating device), a toilet lid motor 512 (rotating device), an air supply device 513, a warm air heater 514, and the like are assembled inside the toilet 800. In addition, in this example, a sensor 402 (for example, a human body sensor 403, a seating sensor 404, and the like) and a control device 405 are assembled inside the toilet 800.

In this way, in the example shown in FIG. 4, each component (hereinafter, referred to as a “functional part”) assembled inside the housing 400 of the toilet seat device 100 may be incorporated inside the toilet 800. When the functional unit is incorporated inside the toilet 800, the spray device 481 and the like can be operated in the same manner as when the functional unit is incorporated into the housing 400.

In addition, in a case where the functional portion is thus assembled inside the toilet 800, the housing 400 of the toilet seat device 100 may be omitted. Alternatively, instead of the toilet seat device 100, the seating portion 200 and the toilet cover 300 may be provided. In this case, for example, the seating part 200 and the toilet cover 300 are each pivotally supported so as to be openable and closable with respect to the toilet 800. In this case, for example, the nozzle baffle 479, the water mist baffle 482, and the air baffle baffle 516 are pivotally supported with respect to the toilet 800.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above description. A person skilled in the art appropriately implements a design change with respect to the above-described embodiment, as long as the embodiment has the features of the present invention, it is also included in the scope of the present invention. For example, the shape, size, material, arrangement, installation method, and the like of each element included in a toilet, a toilet seat device, and the like are not limited to the exemplified cases, and can be appropriately changed.
In addition, each element included in each of the above-described embodiments can be combined as long as it is technically feasible, and an embodiment in which they are combined is also included in the scope of the present invention as long as the features of the present invention are included.

10‧‧‧Flushing device

51‧‧‧The first spouting department

52‧‧‧Second Spouting Department

100‧‧‧ Toilet seat device

110 ~ 113‧‧‧flow path

200‧‧‧ seating

200a‧‧‧ opening

204‧‧‧Back

204e‧‧‧ Peripheral

210‧‧‧ Toilet seat leg

300‧‧‧Toilet cover

400‧‧‧ shell

402‧‧‧Sensor

403‧‧‧body sensor

404‧‧‧Seat Sensor

405‧‧‧control device

431‧‧‧Solenoid valve

450‧‧‧ sterilization device

472‧‧‧switching valve

473‧‧‧washing nozzle

474‧‧‧spit

476‧‧‧Nozzle motor

478‧‧‧Nozzle cleaning room

479‧‧‧nozzle baffle

481‧‧‧ spray device

481a‧‧‧Motor

481b‧‧‧ plate

481c‧‧‧ Water inlet

482‧‧‧Water mist baffle

490‧‧‧ cushion

500‧‧‧Manual operation department

511‧‧‧Motor for toilet seat

512‧‧‧ Toilet cover motor

513‧‧‧Air supply device

514‧‧‧heater heater

515‧‧‧Toilet seat heater

516‧‧‧Air baffle

516a‧‧‧open

600‧‧‧ measuring device

601‧‧‧Lighting Department

602‧‧‧Light receiving section

800‧‧‧Toilet

801‧‧‧ Basin

801A‧‧‧wash area

801B‧‧‧ Non-washed area

801F‧‧‧ Front side non-washing area

801w‧‧‧water storage

805‧‧‧pelvic margin

805B‧‧‧ Terrace

806‧‧‧ Upper surface of basin edge

806e‧‧‧periphery

806f‧‧‧ Non-Mounting Section

806r‧‧‧mounting section

810‧‧‧area

811‧‧‧ spout

821‧‧‧upper area

822‧‧‧lower area

823‧‧‧Circle

824‧‧‧Water mist guide

B1‧‧‧ Underside

M, M1, M2 ‧‧‧ Water Mist

S‧‧‧Slit

S1‧‧‧upper face

SF‧‧‧ Swirl

SU‧‧‧First measurement position

SL‧‧‧Second measurement position

SP‧‧‧ Clearance

U1‧‧‧ Updraft

W‧‧‧ Water

OB‧‧‧ Spray object

f1‧‧‧ Updraft

f2, f3‧‧‧ airflow

WD1, WD2 ‧‧‧ Water Drop

WF1, WF2‧‧‧ water film

θs‧‧‧Spray angle

Ds‧‧‧ spray direction

FIG. 1 is a perspective view illustrating a toilet device according to the embodiment.

FIG. 2 is a cross-sectional view illustrating a part of the flushing device according to the embodiment.

3 (a) and 3 (b) are schematic views illustrating a part of the flushing device according to the embodiment.

FIG. 4 is a block diagram illustrating a configuration of a main part of the toilet seat device according to the embodiment.

5 (a) to 5 (e) are a plan view and a perspective view illustrating a toilet device according to the embodiment.

6 (a) to 6 (c) are schematic views illustrating a spray device according to an embodiment.

FIG. 7 is a cross-sectional view illustrating a part of a toilet device according to a modification of the embodiment.

8 (a) to 8 (c) are perspective views illustrating another toilet flushing device according to the embodiment.

FIG. 9 is a flowchart illustrating an operation of the toilet seat device according to the embodiment.

10 (a) and 10 (b) are schematic views illustrating the operation of the toilet seat device according to the embodiment.

11 is a cross-sectional view illustrating an operation in a front spray mode of the toilet seat device according to the embodiment.

FIG. 12 is a schematic view illustrating a water mist sprayed by the spraying device of the embodiment.

FIG. 13 is a schematic diagram for explaining a linearly advancing state of water mist.

14 is a cross-sectional view illustrating an operation in a front spray mode of the toilet seat device according to the embodiment.

FIGS. 15 (a) to 15 (c) are schematic diagrams for describing a method for measuring an average water impingement per unit area of water mist directly impinging on an upper region and a lower region of a non-washing region.

16 (a) and 16 (b) are cross-sectional views illustrating a non-washing area on the front end side of the toilet according to the embodiment.

17 (a) and 17 (b) are cross-sectional views illustrating operations in a front spray mode and an automatic toilet lid opening mode of a toilet seat device.

FIG. 18 is a time chart illustrating an operation in a front spray mode of the toilet seat device according to the embodiment.

19 (a) and 19 (b) are plan views illustrating operations in the front spray mode of the toilet seat device according to the embodiment.

20 (a) and 20 (b) are cross-sectional views illustrating operations in a toilet spray mode or a manual spray mode of the toilet seat device according to the embodiment.

21 is a flowchart illustrating an operation in a toilet spray mode of the toilet seat device according to the embodiment.

22 is a flowchart illustrating another operation in a toilet spray mode of the toilet seat device according to the embodiment.

FIG. 23 is a flowchart illustrating another operation in the toilet spray mode of the toilet seat device according to the embodiment.

24 (a) and FIG. 24 (b) are cross-sectional views illustrating operations in a front spray mode and a back spray mode of the toilet seat device according to the embodiment.

25 (a) and FIG. 25 (b) are cross-sectional views illustrating other actions in the front spray mode of the toilet seat device according to the embodiment.

26 (a) and 26 (b) are plan views illustrating a toilet and a toilet seat according to the embodiment.

27 (a) and 27 (b) are cross-sectional views illustrating operations in the toilet spray mode or the manual spray mode of the toilet seat device according to the embodiment.

28 (a) and 28 (b) are cross-sectional views illustrating operations in the second step of the toilet spray device or the manual spray mode of the toilet seat device according to the embodiment.

FIG. 29 is a plan view illustrating a toilet device according to the embodiment.

30 is a cross-sectional view illustrating an operation in a toilet spray mode or a manual spray mode of the toilet seat device according to the embodiment.

FIG. 31 (a) and FIG. 31 (b) are perspective views illustrating operations in the toilet spray mode or the manual spray mode of the toilet seat device according to the embodiment.

32 is a flowchart illustrating an operation in a manual spray mode of the toilet seat device according to the embodiment.

33 is a flowchart illustrating another operation in the manual spray mode of the toilet seat device according to the embodiment.

34 (a) and 34 (b) are perspective views illustrating a method for measuring the particle diameter of the embodiment.

FIG. 35 is a block diagram illustrating a configuration of a main part of a flushing device according to a modification of the embodiment.

Claims (6)

A toilet flushing device, comprising: The toilet has: a basin part that receives dirt; an upper surface of the basin edge part above the basin part; and a water spout that discharges washing water for discharging the dirt from the basin part into the basin part; The basin portion includes: a washing area through which the washing water passes; and a non-washing area located above the washing area and below the upper surface of the basin edge portion; A seating part, the seating part is disposed on an upper part of the toilet and is used for seating by a user; A spraying device, which is located on the rear side of the bowl portion and sprays water mist into the bowl portion; A sensor that detects the aforementioned user; and A control device for controlling the spray device based on the detection information of the sensor, The control device can execute a front spray mode: when the sensor changes from a state in which the user is not detected to a state in which the user is detected, automatically controlling the spray device to spray water mist onto the sensor Inside the basin, In the aforementioned toilet spray mode, the control device controls the spray device so that the water mist directly impinges on the front end portion of the non-washed area in the basin, that is, the front-side non-washed area, and directly impinges on the water. The average water impingement per unit area of the water mist in the upper area of the front-end non-washing area is smaller than the average water impingement per unit area of the water mist directly impinging on the lower area of the front-side non-washing area. The flushing device according to claim 1, wherein: The upper region has an inclined surface that slopes downward toward the outside of the bowl portion, The lower region has an inclined surface that slopes downward toward the inside of the basin portion. The flushing device according to claim 1 or 2, wherein: In the toilet spray mode, the control device controls the spray device so that a particle diameter of the water mist directly impinging on the lower region is larger than a particle diameter of the water mist directly impinging on the upper region. A toilet seat device provided on the upper part of a toilet. The toilet has: a bowl part that receives dirt; an upper surface of the bowl edge part above the bowl part; and a water outlet for discharging the dirt from the bowl part The washing water is discharged into the basin part; the basin part has: a washing area through which the washing water passes; and a non-washing position located above the washing area and below the upper surface of the basin edge portion Area ;, the toilet seat device is characterized by: have: Seating section for users to sit; A spraying device, which is located on the rear side of the bowl portion and sprays water mist into the bowl portion; A sensor that detects the aforementioned user; and A control device for controlling the spray device based on the detection information of the sensor, The control device can execute a front spray mode: when the sensor changes from a state in which the user is not detected to a state in which the user is detected, automatically controlling the spray device to spray water mist onto the sensor Inside the basin, In the aforementioned toilet spray mode, the control device controls the spray device so that the water mist directly impinges on the front end portion of the non-washed area in the basin, that is, the front-side non-washed area, and directly impinges on the water. The average water impingement per unit area of the water mist in the upper area of the front-end non-washing area is smaller than the average water impingement per unit area of the water mist directly impinging on the lower area of the front-side non-washing area. The toilet seat device according to claim 4, wherein: The upper region has an inclined surface that slopes downward toward the outside of the bowl portion, The lower region has an inclined surface that slopes downward toward the inside of the basin portion. The toilet seat device according to claim 4 or 5, wherein: In the toilet spray mode, the control device controls the spray device so that a particle diameter of the water mist directly impinging on the lower region is larger than a particle diameter of the water mist directly impinging on the upper region.