JP6587222B2 - Toilet device and toilet seat device - Google Patents

Description

  Aspects of the present invention generally relate to toilet devices and toilet seat devices.

  In the toilet apparatus described in Patent Document 1, before using the toilet apparatus (for example, when the human body detection sensor detects a human body), a mist of hypochlorous acid water or tap water is automatically sprayed on the bowl portion of the toilet bowl. Premist mode is performed. The mist lands on the bowl portion by the premist mode, and a water film is formed on the bowl portion by the mist that has landed. Thereby, adhesion and adhesion to the bowl part surface of filth can be controlled.

  In the toilet bowl with a mist cleaning device described in Patent Document 2, a mist cleaning device for spraying ozone water, electrolytic sterilized water, or high temperature water mist is provided. In patent document 2, it is supposed that the mist generated by the mist cleaning device can be cleaned by spreading it to every corner of the toilet bowl, toilet seat, toilet lid, and the like by the airflow.

Japanese Patent No. 5029930 JP 2007-138605 A

  On the inner surface of the bowl portion of the toilet bowl, there are a washing region through which washing water for discharging the filth in the bowl portion to the outside and a non-washing region which is located above the washing region and through which washing water does not pass. Even in such a non-cleaning region, dirt may adhere. For example, dirt splashed in the cleaning area may adhere to the non-cleaning area. Therefore, in order to suppress contamination generated in a wide range of toilets including not only the cleaning area but also the non-cleaning area, mist is applied not only to the cleaning area but also to the non-cleaning area in the premist mode before using the toilet device. It is preferable to water.

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

  Therefore, for example, a method of landing mist over a wide area by an air flow as in Patent Document 2 using a blower that generates an updraft in the bowl portion is conceivable. However, immediately after execution of the premist mode, there is a high possibility that the user will use the toilet device. Therefore, when a part of the mist floats due to the rising air current and lands on the toilet seat or the rim of the toilet bowl, when the user sits on the toilet seat or rotates the toilet seat by hand, the user's buttocks Or the hand may touch the mist that has landed on the toilet seat, causing discomfort. Moreover, since the rim upper surface is formed substantially horizontally, a water film (including water droplets) formed by mist that has landed on the rim upper surface may hang down from the toilet.

  The present invention has been made on the basis of recognition of such a problem, and in the range including the non-cleaning region of the toilet, the premist mode suppresses adhesion and adhesion of filth, and a large amount of mist that has landed on the upper surface of the rim. An object of the present invention is to provide a toilet device and a toilet seat device capable of suppressing the drooping out of the toilet bowl and the seating portion from being wetted by mist.

  The first invention comprises a bowl portion for receiving filth, a rim upper surface located on the bowl portion, and a spout for discharging cleaning water for discharging the filth from the bowl portion into the bowl portion. The bowl portion includes a flush area through which the flush water passes, and a non-wash area located above the wash area and below the upper surface of the rim, and an upper part of the toilet bowl. A seating unit that is installed and seated by a user, a spraying device that is located on the rear side of the bowl unit and sprays mist into the bowl unit, a detection sensor that detects the user, and detection information of the detection sensor And a control device for controlling the spraying device, the control device, when the detection sensor is in the state of detecting the user from the state of not detecting the user, Automatically spraying device It is possible to execute a premist mode in which the mist is sprayed into the bowl portion by controlling, and in the premist mode, the control device causes the mist to directly land on the front end side non-cleaning region which is the front end portion of the non-cleaning region. The average amount of water per unit area of the mist directly landing on the upper region of the front end side non-cleaning region is greater than the average amount of water per unit area of the mist landing on the lower region of the front end side non-cleaning region. The toilet device is characterized in that the spraying device is controlled so as to be reduced.

According to this toilet apparatus, the mist sprayed from the spray section in the premist mode reaches not only the cleaning area but also the non-cleaning area, and forms a water film in the cleaning area and the non-cleaning area. Thereby, adhesion and adhesion of filth can be suppressed in a wide range of the toilet including the non-cleaning region.
Further, by relatively increasing the average amount of water per unit area of mist that directly lands on the lower region of the front end side non-cleaning region, it is possible to suppress adhesion and adhesion of dirt in the lower region. On the other hand, the amount of mist landing on the rim upper surface and the seating portion can be suppressed by relatively reducing the average amount of water landing per unit area of mist directly landing on the upper region of the front end side non-cleaning region. For example, it is possible to suppress the mist that has reached the upper region from being scattered on the rim upper surface or the seating portion. Thereby, it can suppress that the mist which landed on the rim upper surface droops out of a toilet bowl. In addition, the seat can be prevented from getting wet by the mist, and when the user is seated on the seat or when the seat is rotated by hand, the user's buttocks and hands are watered on the seat. Touching can be suppressed.

  In a second aspect based on the first aspect, the upper region has an inclined surface inclined downward toward the outside of the bowl portion, and the lower region inclined downward toward the inside of the bowl portion. A toilet apparatus having an inclined surface.

  According to this toilet apparatus, since the inclined surface of the upper region is inclined downward toward the outside of the bowl portion, the mist that has reached the inclined surface of the upper region is guided downward. Thereby, it can suppress that mist is scattered to the rim upper surface side. On the other hand, since the inclined surface of the lower region is inclined downward toward the inside of the bowl portion, the mist that has reached the inclined surface of the lower region is guided upward. Thereby, a part of mist which the lower area | region reached | attained can be made to land on an upper area | region, and the amount of water landing (interbonding water amount) in an upper area | region can be increased.

  According to a third aspect of the present invention, in the first or second aspect, in the premist mode, the control device is configured such that the particle size of the mist directly landing on the lower region is equal to the particle size of the mist directly landing on the upper region. The toilet device is characterized in that the spraying device is controlled to be larger than that.

  According to this toilet apparatus, by increasing the particle size of the mist that directly reaches the lower region, the average amount of water per unit area of the mist that directly reaches the lower region can be increased. In addition, by reducing the particle size of the mist that directly reaches the upper region, the average amount of water per unit area of the mist that directly reaches the lower region can be reduced.

  A fourth invention comprises a bowl portion for receiving filth, an upper surface of a rim positioned on the bowl portion, and a spout for discharging cleaning water for discharging the filth from the bowl portion into the bowl portion. And the bowl portion is installed on an upper part of a toilet bowl having a washing region through which the washing water passes and a non-washing region located above the washing region and below the upper surface of the rim. A seating unit on which a user sits, a spraying device that is located behind the bowl unit and sprays mist into the bowl unit, a detection sensor that detects the user, and detection of the detection sensor And a control device that controls the spray device based on the information, and the control device detects the user from a state where the detection sensor does not detect the user. Automatically It is possible to execute a premist mode in which a mist is sprayed into the bowl portion by controlling an apparatus, and in the premist mode, the control device causes the mist to directly land on the front end side non-cleaning region which is the front end portion of the non-cleaning region. In addition, the average amount of water per unit area of mist directly landing on the upper region of the front end side non-cleaning region is equal to the average amount of water per unit area of mist directly landing on the lower region of the front end side non-cleaning region. The toilet seat device is characterized in that the spray device is controlled so as to be less than the amount of water.

According to this toilet seat device, the mist sprayed from the spray section in the premist mode lands on not only the cleaning region but also the non-cleaning region, and forms a water film in the cleaning region and the non-cleaning region. Thereby, adhesion and adhesion of filth can be suppressed in a wide range of the toilet including the non-cleaning region.
Further, by relatively increasing the average amount of water per unit area of mist that directly lands on the lower region of the front end side non-cleaning region, it is possible to suppress adhesion and adhesion of dirt in the lower region. On the other hand, the amount of mist landing on the rim upper surface and the seating portion can be suppressed by relatively reducing the average amount of water landing per unit area of mist directly landing on the upper region of the front end side non-cleaning region. For example, it is possible to suppress the mist that has reached the upper region from being scattered on the rim upper surface or the seating portion. Thereby, it can suppress that the mist which landed on the rim upper surface droops out of a toilet bowl. In addition, the seat can be prevented from getting wet by the mist, and when the user is seated on the seat or when the seat is rotated by hand, the user's buttocks and hands are watered on the seat. Touching can be suppressed.

  In a fifth aspect based on the fourth aspect, the upper region has an inclined surface inclined downward toward the outside of the bowl portion, and the lower region inclined downward toward the inside of the bowl portion. A toilet seat device having an inclined surface.

  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 mist that has reached the inclined surface of the upper region is guided downward. Thereby, it can suppress that mist is scattered to the rim upper surface side. On the other hand, since the inclined surface of the lower region is inclined downward toward the inside of the bowl portion, the mist that has reached the inclined surface of the lower region is guided upward. Thereby, a part of mist which the lower area | region reached | attained can be made to land on an upper area | region, and the amount of water landing (interbonding water amount) in an upper area | region can be increased.

  According to a sixth aspect of the present invention, in the fourth or fifth aspect, in the premist mode, the control device is configured such that the particle size of the mist directly landing on the lower region is equal to the particle size of the mist directly landing on the upper region. The toilet seat device is characterized in that the spray device is controlled to be larger than the above.

  According to this toilet seat device, by increasing the particle size of the mist directly landing on the lower region, the average amount of water landing per unit area of the mist directly landing on the lower region can be increased. In addition, by reducing the particle size of the mist that directly reaches the upper region, the average amount of water per unit area of the mist that directly reaches the lower region can be reduced.

  According to the aspect of the present invention, the premist mode suppresses adhesion and fixation of filth in a range including the non-washing area of the toilet, and the mist that has landed on the upper surface of the rim droops out of the toilet and is seated. Provided are a toilet device and a toilet seat device that can prevent the portion from getting wet by mist.

It is a perspective view which illustrates the toilet apparatus which concerns on embodiment. It is sectional drawing which illustrates a part of toilet apparatus which concerns on embodiment. FIG. 3A and FIG. 3B are schematic views illustrating a part of the toilet apparatus according to the embodiment. It is a block diagram which illustrates the principal part composition of the toilet seat device concerning an embodiment. FIG. 5A to FIG. 5E are a plan view and a perspective view illustrating the toilet apparatus according to the embodiment. FIG. 6A to FIG. 6C are schematic views illustrating the spray device according to the embodiment. It is sectional drawing which illustrates a part of toilet apparatus which concerns on the modification of embodiment. FIG. 8A to FIG. 8C are perspective views illustrating another toilet device according to the embodiment. It is a flowchart which illustrates operation | movement of the toilet seat apparatus which concerns on embodiment. FIG. 10A and FIG. 10B are schematic views illustrating the operation of the toilet seat device according to the embodiment. It is sectional drawing which illustrates operation | movement in the premist mode of the toilet seat apparatus which concerns on embodiment. It is a schematic diagram which illustrates the mist which the spraying apparatus which concerns on embodiment sprays. It is a mimetic diagram for explaining the straight state of mist. It is sectional drawing which illustrates operation | movement in the premist mode of the toilet seat apparatus which concerns on embodiment. FIG. 15A to FIG. 15C are schematic diagrams for explaining a method of measuring the average water landing amount per unit area of mist that directly reaches the upper region and the lower region of the non-cleaning region. Drawing 16 (a) and Drawing 16 (b) are sectional views which illustrate the front end side non-cleaning field of the toilet bowl concerning an embodiment. FIGS. 17A and 17B are cross-sectional views illustrating operations in the premist mode and the automatic toilet lid opening mode of the toilet seat device. It is a timing chart which illustrates operation in the premist mode of the toilet seat device concerning an embodiment. FIG. 19A and FIG. 19B are plan views illustrating operations in the premist mode of the toilet seat device according to the embodiment. FIG. 20A and FIG. 20B are cross-sectional views illustrating operations in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment. It is a flowchart which illustrates the operation | movement in the after mist mode of the toilet seat apparatus which concerns on embodiment. It is a flowchart which illustrates another operation | movement in the after mist mode of the toilet seat apparatus which concerns on embodiment. It is a flowchart which illustrates another operation | movement in the after mist mode of the toilet seat apparatus which concerns on embodiment. FIG. 24A and FIG. 24B are cross-sectional views illustrating operations in the premist mode and the aftermist mode of the toilet seat device according to the embodiment. FIG. 25A and FIG. 25B are cross-sectional views illustrating another operation in the premist mode of the toilet seat device according to the embodiment. FIG. 26A and FIG. 26B are plan views illustrating the toilet bowl and toilet seat according to the embodiment. FIG. 27A and FIG. 27B are cross-sectional views illustrating operations in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment. FIG. 28A and FIG. 28B are cross-sectional views illustrating the operation in the second step of the after mist mode or the manual mist mode of the toilet seat device according to the embodiment. It is a top view which illustrates the toilet apparatus which concerns on embodiment. It is sectional drawing which illustrates the operation | movement in the after-mist mode or manual mist mode of the toilet seat apparatus which concerns on embodiment. FIG. 31A and FIG. 31B are perspective views illustrating the operation in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment. It is a flowchart which illustrates the operation | movement in the manual mist mode of the toilet seat apparatus which concerns on embodiment. It is a flowchart which illustrates another operation | movement in the manual mist mode of the toilet seat apparatus which concerns on embodiment. FIG. 34A and FIG. 34B are perspective views illustrating the particle size measurement method according to the embodiment. It is a block diagram which illustrates the principal part structure of the toilet apparatus which concerns on the modification of embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a perspective view illustrating a toilet apparatus according to an embodiment.
The toilet apparatus 10 illustrated in FIG. 1 includes a western-style seat toilet (hereinafter simply referred to as “container”) 800 and a toilet seat apparatus 100. The toilet bowl 800 has a concave bowl portion 801 that receives filth. The toilet seat device 100 is installed in the upper part of the toilet bowl 800.

  The toilet seat device 100 includes a casing 400 (main body portion), a seating portion 200 (toilet seat) on which a user is seated, and a toilet lid 300. The seat portion 200 and the toilet lid 300 are pivotally supported with respect to the casing 400 so as to be freely opened and closed. The state shown in FIG. 1 is a state where the seating portion 200 is closed (lowered state), and a state where the toilet lid 300 is opened (raised state). In the closed state, the toilet lid 300 covers the seating surface of the seating portion 200 from above.

  In the casing 400, a body cleaning function unit for cleaning a human body portion (such as a “buttock”) of a user sitting on the seating unit 200 is incorporated. Further, for example, the casing 400 is provided with a seating detection sensor 404 that detects that a user has sat on the seating unit 200. When the seating detection sensor 404 detects a user sitting on the seating unit 200, when the user operates the manual operation unit 500 such as a remote controller, for example, the cleaning nozzle (hereinafter simply referred to as “nozzle” for convenience of explanation). ) 473 can be advanced into the bowl portion 801 of the toilet bowl 800. In the toilet seat device 100 shown in FIG. 1, the nozzle 473 has entered the bowl portion 801.

One or a plurality of water discharge ports 474 are provided at the tip of the nozzle 473. And the nozzle 473 can wash | clean the "buttock" etc. of the user who sat on the seating part 200 by injecting water from the spout 474 provided in the front-end | tip part.
In the present specification, each of “upward”, “downward”, “front”, “rear”, “left side” and “right side” faces the seat portion 200 with its back facing the opened toilet lid 300. It is the direction seen from the user who sat down.

FIG. 2 is a cross-sectional view illustrating a part of the toilet apparatus according to the embodiment.
As shown in FIG. 2, the upper portion of the bowl portion 801 is a rim portion 805. The rim portion 805 is an annular portion that forms the upper edge portion of the toilet bowl 800. In the bowl portion 801, stored water 801w is stored.

  The toilet bowl 800 also has a rim upper surface 806 positioned on the bowl portion 801. The rim upper surface 806 is the upper surface of the rim portion 805 and faces the back surface 204 of the closed seat portion 200, for example.

FIG. 3A and FIG. 3B are schematic views illustrating a part of the toilet apparatus according to the embodiment.
FIG. 3A is a perspective view illustrating the toilet bowl 800, and FIG. 3B is a plan view illustrating the toilet bowl 800. FIG. The toilet bowl 800 has a water discharge port 811 provided in the rim portion 805. The water discharge port 811 discharges cleaning water for discharging dirt (for example, user's excrement) from the bowl portion 801 into the bowl portion 801.

  For example, when the user performs toilet cleaning operation with a switch provided on a remote controller or the like, or when the user stands up from the seating portion 200, toilet cleaning is performed to supply cleaning water from the water outlet 811 into the bowl portion 801. Is executed. Thereby, the dirt in the bowl part 801 is discharged, and the surface of the bowl part 801 is washed.

  As indicated by an arrow A5 illustrated in FIG. 3A, the water discharge port 811 discharges cleaning water toward the rear. The washing water discharged from the water discharge port 811 flows on the shelf-like portion 805B provided along the rim portion 805, and as shown in FIG. 3B, a swirling flow SF that swirls in the bowl portion 801 is generated. Form.

  The bowl portion 801 has a cleaning region 801A through which cleaning water passes, and a non-cleaning region 801B located above the cleaning region 801A and below the rim upper surface 806. The cleaning area 801A is an area of the inner surface of the bowl portion 801 where the cleaning water passes and gets wet. The non-cleaning region 801B is a region where the cleaning water does not pass through the inner surface of the bowl portion 801. As shown in FIG. 3B, when viewed from above, the non-cleaning region 801B is generally annular along the rim portion 805, and the cleaning region 801A is located inside thereof.

  For example, as shown in FIG. 2, the cleaning region 801A is a region below the shelf-like portion 805B, and the non-cleaning region 801B is an elevation surface (an inner wall surface of the rim portion) of the rim portion 805 positioned on the shelf-like portion 805B. )including.

  In the embodiment, the washing water does not have to form the swirl flow SF. For example, the water discharge port 811 may discharge cleaning water from the rim portion 805 downward. Even in such a case, the bowl portion 801 has a cleaning region through which the cleaning water passes, and a non-cleaning region that is located between the rim upper surface and the cleaning region and through which the cleaning water does not pass.

FIG. 4 is a block diagram illustrating the main configuration of the toilet seat device according to the embodiment.
In addition, FIG. 4 represents together the principal part structure of the waterway system and the electrical system.
The toilet seat apparatus 100 includes an electromagnetic valve 431, a sterilization apparatus 450, a switching valve 472, a spraying apparatus 481, a nozzle motor 476, a nozzle 473, a nozzle cleaning chamber 478, flow paths 110 to 113, and the like. These are arranged in the casing 400, for example. In addition, as shown in FIG. 35, these may be incorporated inside the toilet bowl 800.

  The channel 110 is a channel for guiding water supplied from a water supply source (not shown) such as a water supply or a water storage tank to the spraying device 481 or the nozzle 473. An electromagnetic valve 431 is provided on the upstream side of the flow path 110. The electromagnetic valve 431 is an electromagnetic valve that can be opened and closed, and controls the supply of water based on a command from a control device 405 provided in the casing 400.

  On the flow path 110, a sterilization apparatus 450 that generates sterilized water is provided downstream of the electromagnetic valve 431. The sterilization apparatus 450 generates sterilized water containing, for example, hypochlorous acid. An example of the sterilization apparatus 450 is an electrolytic cell unit. The electrolytic cell unit electrolyzes tap water flowing through a space (flow path) between an anode plate (not shown) and a cathode plate (not shown) by controlling energization from the control device 405. The sterilized water is not limited to one containing hypochlorous acid. For example, the sterilized water may be a solution containing metal ions such as silver ions or copper ions, a solution containing electrolytic chlorine or ozone, acidic water, or alkaline water. The sterilization apparatus 450 is not limited to an electrolytic cell, and may have any configuration capable of generating sterilized water.

  A switching valve 472 is provided on the flow path 110 downstream of the sterilization apparatus 450. A nozzle 473, a nozzle cleaning chamber 478, and a spraying 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 spraying device 481. The switching valve 472 controls opening and closing 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 spraying device 481. The switching valve 472 switches the flow rate of water supplied downstream thereof.

  The nozzle 473 receives the driving force from the nozzle motor 476 and moves forward or backward in the bowl portion 801 of the toilet bowl 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 accommodated in the casing 400 when not in use. In a state where the nozzle 473 has advanced forward from the casing 400, the nozzle 473 discharges water from the water outlet 474 to wash the human body part.

  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 outlet provided in the nozzle cleaning chamber 478.

  The spraying device 481 mists the tap water or the sterilized water generated by the sterilization device 450. The spraying device 481 sprays mist M (sanitized water mist or tap water mist) onto the bowl portion 801, the rim portion 805, the seating portion 200, and the like. In other words, the spray device 481 causes the mist of sterilized water or tap water mist to land on the bowl portion 801, the rim portion 805, the seating portion 200, and the like. In the present specification, “landing” means that water (sanitized water or tap water) adheres to the surface of an object. In particular, in the case of “direct water landing”, it means that the water (microbe sterilized water or tap water fine particles p) reaches the surface of the object from the air.

Inside the casing 400, a toilet seat motor 511 (rotating device), a toilet lid motor 512 (rotating device), a blower 513, and a warm air heater 514 are provided.
The toilet seat motor 511 electrically opens and closes the seating portion 200 based on a command from the control device 405. The toilet lid motor 512 is electrically opened and closed by rotating the toilet lid 300 based on a command from the control device 405.

  The air blower 513 is a fan provided in the casing 400, for example. The blower 513 operates based on a command from the control device 405. For example, a blade | wing rotates with rotation of the motor of the air blower 513. FIG. Thereby, the air blower 513 can blow air toward the inside of the toilet bowl 800 (for example, inside the bowl portion 801). Further, the air blower 513 may blow air to a local part of the user sitting on the seating part 200. The warm air heater 514 warms the air sent to the outside of the casing 400 by the blower 513. Thereby, warm air can be sent toward a user's local part and a local part can be dried.

  The toilet seat heater 515 (drying device) is provided inside the seating portion 200, for example. The toilet seat heater 515 includes, for example, an annular metal member provided around an opening 200 a (FIG. 1) formed in the center of the seating portion 200. The toilet seat heater 515 warms the seating portion 200 by energizing the toilet seat heater 515 based on a command from the control device 405. As the toilet seat heater 515, for example, a tubing heater, a sheathed heater, a halogen heater, a carbon heater, or the like may be used. The metal member is made of, for example, aluminum or copper. Various shapes such as a sheet shape, a wire shape, and a mesh shape can be adopted as the shape of the metal member.

  As the control device 405, a circuit to which power is supplied from a power supply circuit (not shown) is used. For example, the control device 405 includes an integrated circuit such as a microcomputer. Based on detection information of a detection sensor 402 (for example, a human body detection sensor 403 or a seating detection sensor 404) that detects a user or operation information of a manual operation unit 500, the control device 405 includes an electromagnetic valve 431, a sterilization device 450, The switching valve 472, the nozzle motor 476, the spraying device 481, the blower 513, the warm air heater 514, the toilet seat heater 515, the toilet seat motor 511, and the toilet lid motor 512 are controlled.

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

  The seating detection sensor 404 can detect a seated state (presence / absence of seating) of the user on the seating unit 200. The seating detection sensor 404 detects the seating and leaving of the user. As the seating detection sensor 404, a microwave sensor, a distance measurement sensor (infrared light projection sensor), an ultrasonic sensor, a tact switch, a capacitance switch (touch sensor), or a distortion sensor can be used. In this example, the seating detection sensor 404 uses a distance measuring sensor provided in the casing 400.

  In the case where contact sensors such as a tact switch, an electrostatic sensor, and a strain sensor are used, these contact sensors are provided in the seating portion 200. When the user sits on the seating portion 200, the tact switch is pressed according to the weight of the user. Or a user contacts an electrostatic sensor. Alternatively, pressure is applied to the strain sensor depending on the weight of the user. The user's seating can be detected by electrical signals from these sensors.

  The human body detection sensor 403 can detect a user who is in front of the toilet 800, that is, a user who is present at a position spaced forward from the seating portion 200. That is, the human body detection sensor 403 can detect a user who enters the toilet room and approaches the seating unit 200. As such a human body detection sensor, for example, a pyroelectric sensor, a microwave sensor, an ultrasonic sensor, or a distance measuring sensor (infrared projection sensor) can be used. In this example, the human body detection sensor 403 is a pyroelectric sensor provided in a casing. The human body detection sensor 403 detects a user who has just entered the toilet room after opening the toilet room door, or a user who has just entered the toilet room, that is, a user who exists in front of the door trying to enter the toilet room. May be. For example, when a microwave sensor is used, it is possible to detect the presence of a user through a toilet room door.

  The control device 405 receives the detection information (signal indicating the presence / absence of the user) of the human body detection sensor 403 and the detection information (signal indicating the presence / absence of the user's seating) of the seating detection sensor 404, and the received detection. Based on the information, the operation of each part of the toilet seat apparatus 100 is controlled.

The control device 405 can execute three types of mist modes: an after mist mode, a premist mode, and a manual mist mode.
The after mist mode is an operation mode in which, for example, the mist of the sterilized water is automatically sprayed based on the detection information of the detection sensor 402 after the user uses the toilet device 10. The premist mode is, for example, an operation mode in which mist of sterilized water or tap water is automatically sprayed based on detection information of the detection sensor 402 before using the user's toilet device 10. The manual mist mode is an operation mode in which mist of sterilized water is sprayed based on the operation information of the manual operation unit 500.

FIG. 5A to FIG. 5E are a plan view and a perspective view illustrating the toilet apparatus according to the embodiment.
Fig.5 (a) shows the state which looked at a part of toilet apparatus 10 from the front.
FIG. 5B is an enlarged view of a part of FIG. In FIG. 5B, a part of the casing 400 positioned in front of the spraying device 481 is omitted for easy viewing.
The spray device 481, the nozzle damper 479, and the blower damper 516 are located on the upper rear side of the bowl portion 801 in a state where the toilet seat device 100 is installed on the upper portion of the toilet bowl 800.

  The nozzle damper 479 is pivotally supported with respect to the casing 400 so as to be rotatable. The nozzle 473 is positioned behind the nozzle damper 479 in a state where the nozzle 473 is retracted into the casing 400. The nozzle 473 abuts on the nozzle damper 479 and opens by rotating the nozzle damper 479 when the human body portion is washed, etc., and advances from the inside of the casing 400.

FIG. 5C to FIG. 5E are perspective views showing the periphery of the nozzle damper 479 and the blower damper 516 in an enlarged manner.
The blower damper 516 is pivotally supported with respect to the casing 400 so as to be rotatable. A blower 513 is disposed behind the blower damper 516. The blower damper 516 covers the opening 516 a of the casing 400. The air sent from the blower 513 is sent into the toilet bowl 800 through the opening 516a.

FIG. 5C shows a state in which the air blower 513 has stopped operating, and in FIG. 5D and FIG. 5E, the air blower 513 is activated to blow air toward the bowl portion 801. Indicates the state.
As shown in FIG. 5C, the blower damper 516 is closed in a state where the blowing is stopped.
As shown in FIG. 5D, when the blower 513 is activated, the blower damper 516 is rotated and opened by the pressure (wind pressure) of air sent from the blower 513. Thereby, the air blower 513 blows air from the upper rear part in the bowl part 801 toward the lower front part in the bowl part 801 as indicated by an arrow A1.
In the state of FIG.5 (e), compared with the state of FIG.5 (d), there exists much air volume which the air blower 513 sends (or a wind speed is high). In this case, the blower damper 516 is further rotated and opened as compared with the state of FIG. Accordingly, the blower 513 blows air from the upper rear part in the bowl part 801 toward the upper front part in the bowl part 801 as indicated by an arrow A2, for example.

  Thus, the direction of the wind sent from the blower 513 is changed by the blower damper 516. In other words, the blower 513 can control the blowing direction based on the air volume (wind speed). The mist sprayed from the spray device 481 is placed on the airflow generated by the air blown from the blower 513, and the mist landing area and the mist landing amount in each range (the sterilized water landing in each range) Alternatively, the amount of tap water) may be controlled.

FIG. 6A to FIG. 6C are schematic views illustrating the spray device according to the embodiment.
FIG. 6A is a perspective view of the spray device 481, and FIG. 6B is a side view of the spray device 481.
The spraying device 481 has a motor 481a and a disk 481b connected below 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. 6B, water W (tap water or sterilized water generated by the sterilizer 450) is supplied to the upper surface of the disk 481b. When the water W is supplied while the disk 481b is rotating, the spraying device 481 sprays the water W in a mist form.

  FIG. 6C is an enlarged view of a part of the disk 481b as viewed from above. The water W dropped on the upper surface of the rotating disk 481b spreads in a film shape on the disk 481b by the centrifugal force and is radiated from the disk 481b. At this time, the water W splits in the form of a film from the vicinity of the edge of the disk 481b, or splits after becoming a filament, and then becomes fine particles p (mist). The particle diameter of the mist (the diameter of the fine particles p) can be controlled by the rotation speed of the disk 481b, that is, the rotation speed of the motor 481a. The higher the rotational speed, the smaller the mist particle size. For example, a low-speed rotation with a rotation speed of about 1000 (rotation per minute: rpm), a medium-speed rotation with a rotation speed of about 10,000 rpm, or a high-speed rotation with a rotation speed of about 20000 rpm can be used as appropriate to obtain a desired particle size. . Moreover, the particle diameter of mist can also be controlled by adjusting the flow rate of the water W supplied to the spraying device 481 from the water supply port 481c.

  In the present specification, the particle size is the particle size of the fine particles p existing in the air before landing on the toilet device 10, and is, for example, the Sauter average particle size (total volume / total surface area). A method for measuring the “particle size” in the present specification will be described later with reference to FIG. Moreover, mist means the range whose particle size is 10 micrometers (micrometer) or more and 300 micrometers or less. If the particle size of the mist is less than 10 μm, it takes a long time to wet the target parts such as the bowl part 801, the rim part 805, and the seating part 200. Moreover, when the sterilization water containing hypochlorous acid is used and the particle size of mist is less than 10 μm, the concentration of hypochlorous acid in the mist tends to be attenuated and the sterilization performance tends to be lowered. On the other hand, when the particle diameter of the mist is larger than 300 μm, the mist is difficult to diffuse and it is difficult to spray the mist over a wide range. In the following description, a mist having a large particle size is a mist having a particle size of 100 μm or more and 300 μm or less, preferably 150 μm or more and 300 μm or less, and a medium particle size mist is a particle size of 50 μm or more and 200 μm. Hereinafter, the mist is preferably in the range of 60 μm to 150 μm, and the small particle size mist is a mist having a particle size of 10 μm to 100 μm, preferably 10 μm to 60 μm.

  For example, the particle size, flow rate, direction, etc. of the mist sprayed from the spray device 481 into the toilet bowl 800 are adjusted by the position and number of the water supply ports 481c and the rotation direction (clockwise or counterclockwise) of the disk 481b. It is also possible to do. Thereby, you may control the range which the mist sprayed from the spraying apparatus 481 lands, and the amount of mist landing in each range. Further, a cover for controlling the direction in which the mist is sprayed may be appropriately provided around the disk 481b.

FIG. 7 is a cross-sectional view illustrating a part of a toilet apparatus according to a modification of the embodiment.
FIG. 7 shows a cross section taken along line AA ′ shown in FIG.
As shown in FIG. 7, the casing 400 is provided with a slit S. In this example, the spray device 481 is disposed in the casing 400, and the slit S is located in the lower front part 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 disk 481b is inclined from the horizontal, and the disk 481b sprays the mist M slightly downward from the horizontal. The mist M sprayed from the disk 481b passes through the slit S and is sprayed toward the bowl portion 801. Thereby, it is possible to prevent dirt Y such as urine from adhering to the spray device 481 without impairing the design and cleaning properties of the toilet device 10. The shape of the disk 481b may be a flat disk shape, may be provided with irregularities as appropriate, or may be a conical shape or a sphere. Thereby, the spraying direction of mist, the particle size of mist, etc. can also be adjusted.

  The spraying device 481 is disposed below a part of the seating portion 200 (see FIG. 2) in a state where the toilet seat device 100 is installed on the upper portion of the toilet bowl 800, and sprays mist toward the toilet bowl 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 atomizer may be used as the spray device. An ultrasonic atomizer makes a liquid mist by irradiating the liquid with ultrasonic waves. Further, for example, a two-fluid nozzle may be used as the spray device. The two-fluid nozzle makes the liquid mist by ejecting both gas and liquid. However, when the apparatus described with reference to FIGS. 6 and 7 is used, there is an advantage that the spray range can be easily controlled by the blower 513. In addition, the risk of clogging is low, and no additional device such as a compressor is required.

  FIG. 8A to FIG. 8C are perspective views illustrating another toilet device according to the embodiment. In this example, a mist damper 482 is provided in front of the spray device 481. The mist damper 482 covers the slit S in front of the spray device 481 in the closed state.

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

  FIGS. 8B and 8C are enlarged views of the periphery of the nozzle damper 479 and the mist damper 482. FIG. 8B shows a state where the nozzle 473 is retracted into the casing 400. At this time, the nozzle damper 479 is in a closed state and covers the front of the nozzle 473. The mist damper 482 is in a closed state and covers the front of the slit S.

  When the spray device 481 is not used, the spray device 481 is concealed from the bowl portion 801 side by the mist damper 482 as shown in FIG. Thereby, it is possible to further prevent urine and dirt from adhering to the spray device 481.

  FIG. 8C shows a state in which the nozzle 473 has advanced forward and the nozzle damper 479 has been rotated. The advance distance to the front of the nozzle 473 at this time may be shorter than the advance distance to the front at the time of human body local cleaning. For example, the tip of the nozzle 473 is in contact with the nozzle damper 479. In FIG. 8C, the mist damper 482 rotates together with the nozzle damper 479 and is open. The direction and range in which the mist is sprayed may be controlled by the mist damper 482.

FIG. 9 is a flowchart illustrating the operation of the toilet seat device according to the embodiment.
FIG. 10A and FIG. 10B are schematic views illustrating the operation of the toilet seat device according to the embodiment.
In FIG.10 (b), the target site | part (P1-P4) where the mist of disinfection water or tap water arrives is shown. FIG. 10A shows an example of the amount of water landing (water landing amount per unit area) of each target part in each mist mode in four stages of “large”, “medium”, “small”, and “minimal”. .

  The control device 405 automatically controls the spray device 481 when the detection sensor 402 detects the user from the state where the detection sensor 402 does not detect the user, and mist or sterilization of tap water. A premist mode in which a mist of water is sprayed into the bowl portion 801 can be executed.

  For example, as shown in FIG. 9, when the user enters the toilet room and the human body detection sensor 403 detects the user's entry, a signal (detection information) indicating the user's entry is transmitted to the control device 405. The The control device 405 automatically executes the premist mode based on the signal. In the premist mode, the control device 405 causes the spraying device 481 to spray tap water mist, and causes the target site to land with mist. As shown in FIGS. 10A and 10B, the target site in the premist mode is the target site P3 (the non-cleaning region 801B of the bowl portion 801) and the target site P4 (the cleaning region 801A of the bowl portion 801). is there. In the premist mode, the seat portion 200 and the rim upper surface 806 of the rim portion 805 are not the spray target portions.

  Thus, the mist sprayed from the spraying device 481 in the premist mode lands on not only the cleaning region 801A but also the non-cleaning region 801B, and forms a water film in the cleaning region 801A and the non-cleaning region 801B. Thereby, in the wide range of the toilet bowl 800 including the non-washing area | region 801B, the adhesion and adhesion of a filth can be suppressed.

  The control device 405 automatically controls the spray device 481 when the detection sensor 402 is not detecting the user from the state where the detection sensor 402 is detecting the user, thereby increasing the mist of the sterilized water. It is possible to execute an after mist mode for spraying in the toilet bowl 800 and the seating portion 200.

  For example, as shown in FIG. 9, when the user leaves the toilet room and the human body detection sensor 403 detects the user's leaving, a signal (detection information) indicating the user's leaving is transmitted to the control device 405. The The control device 405 automatically executes the after mist mode based on the signal. In the after mist mode, the control device 405 causes the sterilization device 450 to generate sterilized water, causes the spray device 481 to spray the mist of sterilized water, and causes the mist to land on the target site. As shown in FIGS. 10A and 10B, the target site in the after mist mode is the target site P1 (the surface 203 of the seating portion 200), the target site P2 (the back surface 204 of the seating portion 200, and the rim upper surface 806). ), The target part P3 and the target part P4.

  As described above, by executing the after mist mode, the sterilized water can be automatically landed in the toilet bowl 800 and the seating portion 200 after the user's use of the toilet seat device 100. Thereby, generation | occurrence | production of a microbe and dirt can be automatically suppressed in wide areas, such as not only the toilet bowl 800 but the seating part 200. FIG.

  When the user operates the manual operation unit 500, the control device 405 can execute the manual mist mode in which the spray device 481 is controlled to spray the mist of the sterilized water in the toilet bowl 800 and the seating unit 200. is there.

  For example, as shown in FIG. 9, when the user operates the manual operation unit 500 while entering the toilet room (for example, after executing the premist mode), a signal (operation information) corresponding to the operation is transmitted to the control device 405. Is done. The control device 405 executes the manual mist mode based on the signal. The manual mist mode is executed at timings such as before use, after use, and during cleaning of the toilet seat apparatus 100. In the manual mist mode, the control device 405 causes the sterilization device 450 to generate sterilized water, causes the spray device 481 to spray mist of sterilized water, and causes the mist to land on the target site. The target parts in the manual mist mode are the target part P1, the target part P2, the target part P3, and the target part P4 as shown in FIGS. 10 (a) and 10 (b).

  As described above, the manual mist mode allows the sterilization water to be placed in the toilet bowl 800 and the seating section 200 at the timing when the manual operation section 500 is operated, thereby including the seating section 200 as well as the toilet bowl 800. Generation of bacteria and dirt can be suppressed in a wide range. In addition, the user can remove germs and dirt generated in the seating portion 200 by wiping off the mist of the disinfecting water that has landed on the seating portion 200. For example, sterilization can be performed by wiping off the sterilized water that has landed on the attached dirt that is difficult to suppress by the after mist mode using toilet paper or the like. Further, for example, a user who is worried about dirt on the seating part 200 before using the toilet seat apparatus 100 can disinfect the seating part 200 in the manual mist mode. Since sterilization is performed based on the user's own operation, the user's sense of security and satisfaction can be enhanced.

FIG. 11 is a cross-sectional view illustrating the operation in the premist mode of the toilet seat device according to the embodiment.
As shown in FIG. 11, the non-cleaning region 801B of the bowl portion 801 has a front end side non-cleaning region 801F. The front end side non-cleaning region 801F is a front end portion of the non-cleaning region 801B, and is located, for example, in the center of the bowl portion 801 in the left-right direction. The front end side non-cleaning region 801F includes a foremost end of the non-cleaning region 801B and extends vertically from the upper end of the cleaning region 801A to the rim upper surface 806.

  In order to suppress the adhesion of dirt and the like in the bowl portion 801, it is preferable that a large amount of mist is landed so that a water film is also formed in the non-cleaning region 801B. Therefore, a method is considered in which the air blower 513 is operated to generate an air flow in the bowl portion 801, and the mist is delivered to the non-cleaning region 801B by the air flow. However, in this case, mist riding in the airflow may land on the seating portion 200 and the rim upper surface 806 as well. Then, when the user is seated on the seating part 200 or when the seating part 200 is rotated by hand, the user's buttocks or hand may touch the mist that has landed on the seating part 200 and may cause discomfort. There is. Further, since the rim upper surface 806 is formed substantially horizontally, there is a possibility that the mist that has landed on the rim upper surface 806 hangs out of the toilet bowl 800.

  Therefore, in the premist mode, the control device 405 does not operate the air blower 513 that generates an updraft in the bowl portion 801. Further, in the premist mode, the control device 405 sprays from the spraying device 481 so that the mist that has landed on the rim upper surface 806 does not sag outside the toilet 800, and the mist directly lands on the front end side non-cleaning region 801F. The speed of the mist sprayed by the spraying device 481 is controlled so that the mist that has been moved reaches the front end side non-cleaning region 801F while maintaining the straight traveling state.

  Accordingly, since a large amount of mist is allowed to land on the non-cleaning region 801B, the mist does not float on the rising airflow generated by the blower 513, so that the mist that lands on the rim upper surface 806 and the seating portion 200 can be prevented. Can be reduced. Thereby, it is possible to prevent the mist that has landed on the rim upper surface 806 from dripping out of the toilet 800. Moreover, it can suppress that the seating part 200 gets wet with mist, and when a user sits on the seating part 200 or when the seating part 200 is rotated by hand, a user's buttocks and a hand are in the seating part 200. Touching the mist that has landed can be suppressed.

  In the present specification, “water mist” includes water droplets and a water film formed by agglomeration after the mist has landed.

  For example, in the premist mode, the control device 405 controls the rotational speed of the disk 481b of the spraying device 481, thereby controlling the mist speed (speed at which the fine particles p fly) and the mist particle size. For example, the higher the mist speed, the easier it is for the mist to maintain a straight traveling state.

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

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

  For this reason, as shown in FIG. 11, the distribution also occurs in the amount of mist that lands on the front end side non-cleaning region 801F. The volume zone BZ is the portion of the front end side non-cleaning region 801F where most mists directly land. In the embodiment, the control device 405 controls the spray device 481 so that the mist that reaches the volume zone BZ maintains the straight traveling state.

FIG. 13 is a schematic diagram for explaining a straight traveling state of the mist.
Whether or not the mist sprayed from the spray device 481 maintains the straight traveling state is determined as follows.
The spray object OB is arranged at a position separated from the spray device 481 (disk 481b) by a distance L in the horizontal direction. The distance L is a distance (about 300 to 400 mm) along the horizontal direction between the spray device 481 and the front end side non-cleaning region 801F, for example.

  Mist is sprayed from the spraying device 481 to the spray object OB, and the mist landing point Pt1 in the spray object OB is measured. The landing point Pt1 is a point at which most mists of the spray target OB directly land. For example, the water landing point Pt1 can be visualized by receiving mist with a water-sensitive test paper or a transparent plate and observing the distribution of water droplets.

  The spraying device 481 measures the spraying direction Ds (spraying angle θs) in which the mist is sprayed. The spray direction Ds is a direction in which most mist is sprayed in the vicinity of the spray device 481. In addition, the vicinity of the spraying device 481 is a range where the distance from the spraying device 481 is, for example, within 50 mm. For example, the spray direction Ds can be measured by acquiring an image of the spray device 481 spraying mist and performing image processing. Alternatively, the sprayed mist may be visualized by irradiating the mist with a sheet laser, and the spray direction Ds may be measured. The spray angle θs is an angle between the horizontal direction and the spray direction Ds.

  The height h1 of the intersection Pt2 between the straight line L1 extending in the spray direction Ds from the spray device 481 and the spray object OB is calculated. The height h1 is a distance along the vertical direction between the spray device 481 and the intersection point Pt2, and is calculated by L × tan θs. Further, the actual landing height h2 is measured. The landing height h2 is a distance along the vertical 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 mist sprayed from the spray device 481 has reached the spray object OB while maintaining the straight traveling state. The range where the landing height h2 is the same as the height h1 includes the case where the difference between the landing height h2 and the height h1 is within 20 mm.

FIG. 14 is a cross-sectional view illustrating the operation in the premist mode of the toilet seat device according to the embodiment.
FIG. 14 shows an enlarged view of the periphery of the front end side non-cleaning region 801F shown in FIG.
As shown in FIG. 14, the front end side non-cleaning region 801 </ b> F has an upper region 821 and a lower region 822. The upper region 821 has a rounded portion 823 and a mist guide portion 824.

  The rounded portion 823 has a curved surface shape that includes the upper end of the front end side non-cleaning region 801 </ b> F and has a downward slope toward the inside of the bowl portion 801. The mist guide portion 824 is provided below the rounded portion 823 and has a downward slope toward the outside of the bowl portion 801. Alternatively, the mist guide portion 824 may extend in the vertical direction. The mist guide part 824 is continuous with the round part 823.

  The rounded portion 823 is located in the vicinity of the rim upper surface 806. Therefore, when the spraying direction Ds in which the spray device 481 sprays mist is a direction in which a lot of mist is landed on the rounded portion 823, the rim upper surface 806 is easily wetted. In this case, the mist that has landed on the rim upper surface 806 may sag outside the toilet bowl 800. Further, since the rounded portion 823 has a downward slope toward the inside of the bowl portion 801, the mist that has reached the rounded portion 823 is easily reflected by the rounded portion 823 and scattered toward the rim upper surface 806 side. In particular, if the mist speed is increased so that the mist reaches the non-cleaning region 801B while maintaining the straight traveling state, the mist is likely to be scattered.

  On the other hand, in the embodiment, the spray direction Ds in which the spray device 481 sprays the mist is that the mist that is sprayed from the spray device 481 and reaches the front end side non-cleaning region 801F while maintaining the straight traveling state is from the round portion 823. Is also set to land downward. Thereby, the amount of mist that lands on the rim upper surface 806 located above the rounded portion 823 can be reduced. Further, even when the mist speed is increased to maintain the straight traveling state, the mist can be prevented from scattering toward the rim upper surface 806 side.

  In the example shown in FIG. 14, the mist guide portion 824 has a downward slope toward the outside of the bowl portion 801, and guides the mist that has reached the front end side non-cleaning region 801 </ b> F downward. For example, the mist that has reached the mist guide portion 824 is reflected downward. Accordingly, even when the mist speed is increased so that the mist reaches the front end side non-cleaning region 801F while maintaining the straight traveling state, the mist can be prevented from scattering toward the rim upper surface 806. .

  Further, a spraying part (for example, disk 481b) for spraying mist is provided below a part of the seating part 200. The spray direction Ds in which the spray device 481 sprays mist is set obliquely downward toward the front end side non-cleaning region 801F. Accordingly, the mist that has reached the front end side non-cleaning region 801F is likely to be scattered downward. That is, the mist is easily reflected downward in the front end side non-cleaning region 801F. Therefore, even if the mist speed is increased so that the mist reaches the front end side non-cleaning region 801F while maintaining the straight traveling state, the mist can be prevented from scattering toward the rim upper surface 806 side.

  Further, the spray device 481 is arranged so that a virtual line segment L2 (see FIG. 11) connecting the spray portion (for example, the disk 481b) and the front end side non-cleaning region 801F does not intersect the seating portion 200. The spray direction Ds is set so that the mist that reaches the front end side non-cleaning region 801F is sprayed along the line segment L2 while maintaining the straight traveling state. Accordingly, it is possible to cause the mist to land on the non-cleaning region 801B while suppressing the seat portion 200 from getting wet by the mist.

  Further, in the premist mode, the control device 405 causes the average amount of water per unit area of the mist directly landing on the upper region 821 of the front end non-cleaning region 801F to directly land on the lower region 822 of the front end non-cleaning region 801F. The spraying device 481 is controlled so as to be smaller than the average amount of water per unit area of the mist.

  Specifically, for example, in the premist mode, the control device 405 causes the spray device 481 to make the particle size of the mist directly landing on the lower region 822 larger than the particle size of the mist directly landing on the upper region 821. To control. By increasing the particle size of the mist directly landing on the lower region 822, the average amount of water landing per unit area of the mist directly landing on the lower region 822 can be increased. In addition, by reducing the particle size of the mist directly landing on the upper region 821, the average amount of water landing per unit area of the mist directly landing on the lower region 822 can be reduced.

At this time, if the average water landing amount per unit area of the mist directly landing on the upper region 821 is, for example, about 1 (μL / cm ² ), the adhesion and sticking of filth in the upper region 821 is suppressed. In addition, the mist can be prevented from scattering on the rim upper surface 806 and the seating portion 200. Thereby, it is possible to prevent the mist that has landed on the rim upper surface 806 from dripping out of the toilet. In addition, the seat 200 can be prevented from getting wet by the mist, and the user's buttocks and hands can be seated on the seat 200 when the user sits on the seat 200 or when the seat 200 is rotated by hand. Touching water mist can be suppressed.
Further, in the lower region 822, since there is a low possibility that mist is scattered to the rim upper surface 806 and the seating portion 200, the average amount of water per unit area of mist directly landing on the lower region 822 is directly landed on the upper region 821. By making it relatively larger than the average amount of water landing per unit area of the mist to be adhered, it is possible to further suppress the attachment and fixation of filth in the lower region 822.

FIG. 15A to FIG. 15C are schematic diagrams for explaining a method of measuring the average water landing amount per unit area of mist that directly reaches the upper region and the lower region of the non-cleaning region.
First, a first measurement point SU including the upper region 821 of the front end side non-cleaning region 801F and a second measurement point SL including the lower region 822 of the front end side non-cleaning region 801F are set. The ranges in the left-right direction of the first measurement location SU and the second measurement location SL are each a range having a width of 100 mm with the tip of the non-cleaning region 801B as the center. Further, the vertical range of the first measurement location SU is substantially the same as the vertical range of the upper region 821, and the vertical range of the second measurement location SL is substantially the same as the vertical range of the lower region 822. The same.

After the mist is sprayed on the front end side non-cleaning area 801F, the first measurement point SU and the second measurement point SL are wiped off with a Kim towel (manufactured by Nippon Paper Crecia) after a specified time. As a result, the mist that has landed on each of the first measurement point SU and the second measurement point SL is absorbed by the Kim towel.
The specified time for spraying mist is determined according to the spray flow rate Q (L / min) of mist. When the spray flow rate Q is Q <0.03 L / min, the specified time is 10 seconds. When the spray flow rate Q is 0.03 L / min ≦ Q <0.2 L / min, the specified time is 4 seconds. When the spray flow rate Q is Q ≧ 0.2 L / min, the specified time is 2 seconds.

  The difference between the weight of the kim towel that has absorbed the mist that has landed on the first measurement point SU and the weight of the kim towel before the mist has landed is the amount of mist that has landed on the first measurement point SU. A value obtained by dividing the landing amount of the mist that has landed on the first measurement location SU by the area of the first measurement location SU is taken as the average landing amount per unit area of the mist that directly landes on the upper region 821.

  Similarly, the difference between the weight of the kim towel that has absorbed the mist that has landed on the second measurement point SL and the weight of the kim towel before the mist has landed is the amount of mist that has landed on the second measurement point SL. It is. A value obtained by dividing the landing amount of the mist that has landed on the second measurement location SL by the area of the second measurement location SL is taken as the average landing amount per unit area of the mist that directly landes on the lower region 822.

  Instead of wiping each measurement location with a kim towel, spraying may be performed with the kim towel attached to each measurement location, and the mist may be absorbed by the kim towel. For example, the Kim towel originally formed in four folds is spread, and the Kim towel that is not folded is cut into a shape along each measurement location. Affix the cut Kim towel to each measurement point.

  In the above example, the rounded portion 823 and the mist guide portion 824 are the upper region 821, and the lower portion of the mist guide portion 824 is the lower region 822. Not limited to this, 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-cleaning region 801F. In other words, the upper region 821 may be an upper side of the front end side non-cleaning region 801F in the vertical direction, and the lower side of the front end side non-cleaning region 801F may be a lower region 822.

Drawing 16 (a) and Drawing 16 (b) are sectional views which illustrate the front end side non-cleaning field of the toilet bowl concerning an embodiment.
As shown in FIG. 16A, the upper region 821 has an inclined surface (mist guide portion 824) inclined downward toward the outside of the bowl portion 801. As already described, the mist guide portion 824 (the inclined surface of the upper region 821) guides the mist downward.

  On the other hand, as shown in FIG. 16B, the lower region 822 has an inclined surface inclined downward toward the inside of the bowl portion 801. As a result, the lower region 822 guides the mist that has reached the lower region 822 upward. Thereby, a part of the mist reached by the lower region 822 is allowed to land on the upper region 821, and the amount of water landing (interbonding water amount) in the upper region 821 can be increased. Since the inclined surface of the upper region 821 is provided on the inclined surface of the lower region 822, the mist guided upward by the inclined surface of the lower region 822 passes over the upper region 821 to the rim upper surface 806. The scattering is suppressed.

  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 (mist guide portion 824) of the upper region 821. The inclination angle θ <b> 2 is an angle between the vertical direction and the inclined surface of the lower region 822.

  Since the inclination angle θ1 is large, the mist that has reached the upper region 821 can be more actively guided downward. Further, since the inclination angle θ2 is small, the amount of mist that is guided upward by the lower region 822 can be suppressed. Since the inclination angle θ1 is larger than the inclination angle θ2, the mist guided to the upper region 821 by the lower region 822 decelerates on the inclined surface of the upper region 821, and therefore does not scatter to the rim upper surface 806.

FIGS. 17A and 17B are cross-sectional views illustrating operations in the premist mode and the automatic toilet lid opening mode of the toilet seat device.
The control device 405 automatically controls the toilet lid motor 512 to close the toilet lid 300 when the detection sensor 402 detects a user from a state where it does not detect the user. It is possible to execute an automatic toilet lid opening mode in which the state is opened from the state.

  For example, when the user is not in the toilet room, the toilet lid 300 is in a closed state. Thereafter, when the user enters the toilet room and the human body detection sensor 403 detects the entry of the user, the control device 405 executes the automatic toilet lid opening mode. In addition, the control device 405 executes the premist mode during execution of the automatic toilet lid opening mode.

  For example, when the automatic toilet lid opening mode is executed and the toilet lid 300 is opened as indicated by an arrow A6 in FIGS. 17A and 17B, the toilet lid is placed in the bowl portion 801 and around the bowl portion 801. Ascending air flow f <b> 1 is generated with the opening operation 300. In the example of FIG. 17A, a part of the mist M sprayed in the premist mode rides on the rising air flow f1 and rises above the bowl portion 801. In this case, the mist that has risen above the bowl portion 801 reaches the seating portion 200 and the rim upper surface 806.

  On the other hand, in the example of FIG. 17B, the control device 405 is configured so that the mist flying toward the front end side non-cleaning region 801F does not rise above the bowl portion 801 by the rising air flow f1. Controls the particle size of the sprayed mist. Specifically, for example, the control device 405 limits the rotational speed of the disk 481b of the spray device 481 so that the particle diameter of the mist does not become too small.

  Thereby, even if the rising air flow f1 is generated by the automatic toilet lid opening mode, the mist can reach the non-cleaning region 801B while suppressing the mist from landing on the rim upper surface 806 and the seating portion 200. Therefore, it is possible to prevent the mist that has landed on the rim upper surface 806 from dripping out of the toilet 800. Moreover, it can suppress that the seating part 200 gets wet with mist, and when a user sits on the seating part 200 or when the seating part 200 is rotated by hand, a user's buttocks and a hand are in the seating part 200. Touching the mist that has landed can be suppressed.

  The range in which the mist does not rise above the bowl portion 801 due to the rising air flow f1 is not limited to the case where all the mist does not rise above the bowl portion 801, but also does not cause discomfort to the user. It may include a case where a slight mist rises above the bowl portion 801.

FIG. 18 is a timing chart illustrating the operation in the premist mode of the toilet seat device according to the embodiment.
FIG. 19A and FIG. 19B are plan views illustrating operations in the premist mode of the toilet seat device according to the embodiment.
As shown in FIG. 18, for example, at time T <b> 1, a user's entry is detected by an entry detection unit such as a human body detection sensor 403. Then, the control device 405 starts execution of the automatic toilet lid opening mode and the premist mode. As a result, the closed toilet lid 300 starts to open, and spraying of mist into the bowl portion 801 is started. The opening operation of the toilet lid 300 is continued from time T1 to time T4, and the toilet lid 300 is fully opened at time T4.

  FIG. 19B illustrates a range in which the mist sprayed from the spray device 481 is landed between time T1 and time T2. As described above, in the time zone immediately after the start of the premist mode and the automatic toilet lid opening mode, the control device 405 causes the mist to land on the region (cleaning region 801A) other than the non-cleaning region 801B in the bowl portion 801. Next, the spraying device 481 is controlled.

  FIG. 19A illustrates a range in which the mist sprayed from the spray device 481 is landed between time T2 and time T3. From time T2 to time T3, the control device 405 controls the spray device 481 so that mist reaches the non-cleaning region 801B.

  Thereafter, during the period from time T3 to time T4, the control device 405 controls the spraying device 481 so that the mist reaches the cleaning region 801A again.

  Then, the automatic toilet lid opening mode and the premist mode are finished by time T5 after time T4. For example, the user sits on the seating unit 200 at time T5.

  The magnitude of the ascending airflow f1 generated when the toilet lid 300 is opened in the automatic toilet lid opening mode is the largest immediately after the toilet lid 300 is opened from the closed state (that is, when the toilet lid starts to open). Cheap. On the other hand, in the embodiment, the control device 405 starts spraying mist toward the front end side non-cleaning region 801F after the execution of the automatic toilet lid opening mode is started. That is, as shown in FIG. 18, mist spraying on the front end side non-cleaning region 801F starts at time T2 after time T1 when the automatic toilet lid opening mode starts. Thereby, it can suppress more that mist raises rather than the bowl part 801 with the upward airflow f1.

  In addition, the magnitude of the ascending airflow f1 generated along with the opening operation of the toilet lid 300 in the automatic toilet lid opening mode tends to increase when the opening speed of the toilet lid 300 is high. On the other hand, as shown in FIG. 18, the control device 405 has a first opening speed of the toilet lid 300 in the first time zone (from time T1 to time T2) immediately after the start of execution of the automatic toilet lid opening mode. The toilet lid motor 512 is controlled to be lower than the opening speed of the toilet lid 300 in the second time zone (from time T2 to time T3) after the time zone. Thereby, the ascending airflow f1 can be reduced immediately after the start of the automatic toilet lid opening mode. Therefore, it is possible to further suppress the mist from rising above the bowl portion 801 due to the rising air flow f1 in the automatic toilet lid opening mode.

  Further, the control device 405 causes the mist to land in a region other than the front end side non-cleaning region 801F in the third time zone (from time T1 to time T2) immediately after the start of the execution of the automatic toilet lid opening mode. The spraying device 481 is controlled so that the mist reaches the front end side non-cleaning region 801F in the fourth time zone (from time T2 to time T3). Thereby, it can suppress more that mist raises rather than the bowl part 801 by the upward airflow f1 by automatic toilet lid opening mode.

FIG. 20A and FIG. 20B are cross-sectional views illustrating operations in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment.
FIG. 20B is an enlarged view of the region R4 shown in FIG.
A broken arrow represents an airflow formed by the blower 513 (the same applies to FIGS. 24, 27, 28, and 30 described later). As shown in FIG. 20A, in the after mist mode or the manual mist mode, the blower 513 blows forward and downward. At least a part of the air sent from the blower 513 hits inside the toilet bowl 800 (washing area 801A or non-washing area 801B) and heads upward. As a result, an updraft U1 that winds up from the inside of the toilet 800 below the seating portion 200 and above the seating portion 200 is formed.

  For example, in the after mist mode or the manual mist mode, some mist is emitted from the spray device 481 toward the non-cleaning region 801B. Also, the mist having a relatively large particle size will land on the cleaning region 801A. The mist having a relatively small particle size is landed on the rim upper surface 806, the seat portion 200, the toilet lid 300, and the like by the rising air flow U1. Thereby, all the corners of the toilet apparatus 10 including the non-cleaning region 801B, the rim upper surface 806, the seating portion 200, the toilet lid 300, and the like can be sterilized.

  In general, tap water may contain scale components (eg, sodium, calcium, potassium, magnesium, etc.). In this case, the scale component is also contained in the mist of the sterilized water generated from the tap water. If the mist containing the scale component evaporates after landing on the toilet seat device 100 or the like, the scale may be deposited on the portion where the mist has landed, resulting in visible dirt stains in a short period of time.

  Therefore, in one embodiment of the toilet seat apparatus 100, the after mist mode is not only a mode (second mode) in which mist is sprayed on the toilet bowl 800 and the seating portion 200, but also the first mist sprayed only in the toilet bowl 800. Has a mode. In one after-mist mode, the control device 405 executes either the first mode or the second mode.

  For example, in the first mode, the control device 405 stops the blower 513 or controls the particle size of the mist so that the mist only reaches the toilet 800 (the washing region 801A and the non-washing region 801B). Or In the first mode, by spraying mist of sterilized water into the toilet bowl 800, it is possible to suppress the generation of bacteria and dirt in the toilet bowl 800. In addition, the scale component contained in the mist that has landed in the toilet bowl 800 is washed away by the wash water that flows in the toilet bowl 800. Therefore, in the first mode in which mist is sprayed only in the toilet bowl 800, the generation of bacteria and dirt in the toilet bowl 800 is suppressed, and visible scale dirt due to the scale component is generated on the rim upper surface 806 and the seating portion 200. Occurrence of the toilet lid 300 or the like can be suppressed.

  On the other hand, in the second mode, the control device 405 operates the blower 513 or controls the particle size of the mist so that the mist is landed on the seating portion 200, for example, as in the example of FIG. . In the second mode, spraying mist of sterilized water in the toilet bowl 800 and the seating section 200 can suppress the occurrence of bacteria and dirt not only in the toilet bowl 800 but also in the seating section 200. it can.

  And in after-mist mode, when control device 405 performs either the 1st mode or the 2nd mode, compared with the case where the 2nd mode is performed every time, the frequency that mist adheres to seating part 200 is low. can do. Thereby, the period until the scale which deposits when the attached mist evaporates grows to visible dirt stains can be lengthened. Therefore, it is possible to suppress the occurrence of visible dirt stains in a short period of time in areas where washing water does not flow, such as the seating portion 200, the toilet lid 300, and the rim upper surface 806.

  In addition, since either mist mode is executed in the after mist mode, the sterilized water mist is sprayed in the toilet bowl 800 which is likely to be contaminated, so it is used by executing the after mist mode. The frequency of cleaning by the person can be surely reduced. In addition, since the seating portion 200 is a portion where dirt is less likely to occur than in the toilet bowl 800, visible dirt is less likely to occur without spraying mist of sterilized water on the seating portion 200 each time.

  Further, in the first mode, the range in which mist lands only in the toilet bowl 800 is not limited to the case where all the mist lands in the toilet bowl 800, but is so small that it does not contribute to visible dirt stains. It may include a case where a water mist lands on the seating portion 200 or the like.

FIG. 21 is a flowchart illustrating the operation in the after mist mode of the toilet seat apparatus according to the embodiment.
While the user is in the toilet room, the after mist mode is not executed (step S101: No). When the user leaves the toilet room and the detection sensor 402 detects the user from the state where the user is not detected (step S101: Yes), the control device 405 includes the seating unit 200 and the toilet. The lid 300 is closed and the after mist mode is started.

  At this time, the control device 405 automatically determines whether to execute the first mode or the second mode of the after mist mode (step S102). Thereby, since the user does not have to select either the first mode or the second mode every time, 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 mist containing scale components attached to the seating portion 200. Therefore, it is possible to lengthen the period until the scale is deposited and grows into visible dirt.

  More specifically, the control device 405, for example, when a predetermined time has elapsed since the previous execution of the second mode, or when the first mode is executed a predetermined number of times after the previous execution of the second mode (step S102: Yes), the second mode is executed again (step S103), and the after mist mode ends. Thereby, since 2nd mode is performed regularly, generation | occurrence | production of the microbe and dirt by a filth can be suppressed, suppressing the generation | occurrence | production of the visible stain | pollution | contamination dirt in a short period.

  On the other hand, when the predetermined time has not elapsed since the previous execution of the second mode, or when the first mode has not been executed a predetermined number of times after the previous execution of the second mode (step S102: No) ), The first mode is executed (step S104), and the after mist mode ends. It should be noted that the predetermined time and the predetermined number of times in step S102 may be appropriately determined so that scale dirt does not occur in a short period in consideration of the concentration of the scale component contained in the tap water and the amount of mist sprayed.

FIG. 22 is a flowchart illustrating another operation in the after mist mode of the toilet seat apparatus according to the embodiment.
In the after mist mode, the control device 405 may determine which of the first mode and the second mode is to be executed based on the selection by the user's manual operation. 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 is executed.

  The user performs an input operation for selecting either the first mode or the second mode in the manual operation unit 500. Then, 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, when the detection sensor detects the user leaving the room (step S202: Yes), the control device 405 executes the first mode (step S203). After mist mode ends. In addition, when the user's leaving is not detected, the after mist mode is not executed (step S202: No).
When the user selects the second mode in the manual operation unit 500, when the detection sensor detects the user leaving the room (step S204: Yes), the control device 405 executes the second mode (step S205). After mist mode ends. In addition, when the user's leaving is not detected, the after mist mode is not executed (step S204: No).

  Thus, in the after mist mode, the control device 405 executes either the first mode or 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 every time in the after mist mode. The density | concentration of the scale component contained in tap water changes with areas. In an area where the concentration of the scale component is low, even if the second mode of spraying mist on the seating portion 200 is executed every time, the period is long until visible scale dirt due to the scale component occurs. In such an area, by executing the second mode in the after mist mode, it is possible to suppress the generation of bacteria and dirt due to dirt, and to reduce the frequency of cleaning. On the other hand, in a region where the concentration of the scale component is high, if the second mode in which the seat portion 200 is sprayed with mist is executed, visible stains due to the scale component are likely to occur in a short period of time. In such an area, the frequency of cleaning can be reduced by not executing the second mode in which the seat portion 200 is sprayed with mist. By selecting which of the first mode and the second mode is to be executed by the manual operation unit 500 by the user, the frequency of cleaning can be set in both areas where the concentration of scale components contained in tap water is high and low. Can be lowered.

  Further, the manual operation unit 500 may be provided with a switch or a button 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 previous execution of the second mode, the user can select the predetermined time on the manual operation unit 500. For example, when the second mode is executed when the first mode is executed a predetermined number of times after the previous execution of the second mode, 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 the user's selection (set frequency) in the manual operation unit 500. Thereby, according to the density | concentration of the scale component contained in the tap water of the area where the toilet seat apparatus 100 is used, the execution frequency of the 1st mode or the execution mode of the 2nd mode is selected so that the frequency of cleaning may become low. can do.

FIG. 23 is a flowchart illustrating another operation in the after mist mode of the toilet seat apparatus according to the embodiment.
In the example shown in FIG. 23, the after mist mode is controlled so that mist of sterilized water is sprayed only in the toilet bowl 800. In other words, the first mode described above is executed every time. FIG. 23 also illustrates the operation in the manual mist mode. In this example, in the manual mist mode, the mist of the sterilized water is sprayed in the toilet bowl 800 and the seating portion 200 as in the example described with reference to FIGS. 9 and 20.

  When the user leaves the toilet room and the detection sensor 402 detects the user, the control device 405 starts the after-mist mode when the user is not detected (step S301: Yes). To do. The mist of sterilized water is sprayed only in the toilet bowl 800 (step S302), and the after mist mode ends. In the after mist mode, by not spraying the sterilizing water on the seating portion 200 and the like, it is possible to suppress the occurrence of visible scale dirt due to the scale component in a short period of time.

  When the user does not leave the toilet room (step S301: No), when the user operates the manual operation unit 500 (step S303: Yes), the control device 405 starts the manual mist mode. Mist for sterilized water is sprayed on the toilet bowl 800 and the seating section 200 (step S304), and the manual mist mode ends. Note that when the user does not operate the manual operation unit 500 (step S303: No), the manual mist mode is not executed.

  Since the manual mist mode is a mode in which the user wipes with paper after mist, the execution frequency of the manual mist mode tends to be lower than the execution frequency of the after mist mode. Therefore, as in the example shown in FIG. 23, the mist is sprayed only in the toilet bowl 800 in the after-mist mode, and the mist is sprayed in the toilet bowl 800 and the seating section 200 in the manual mist mode. The frequency with which mist adheres to 200 can be reduced. Thereby, the period until the scale component which precipitates when the attached mist evaporates grows into visible dirt can be lengthened. Therefore, it is possible to suppress the occurrence of visible dirt in a short period in an area where the washing water does not flow, such as the seating portion 200.

FIG. 24A and FIG. 24B are cross-sectional views illustrating operations in the premist mode and the aftermist mode of the toilet seat device according to the embodiment.
As shown in FIG. 24A, in the premist mode, tap water or sterilized water mist is sprayed on the cleaning region 801A and the non-cleaning region 801B, and tap water or sterilizing water is sprayed on the cleaning region 801A and the non-cleaning region 801B. To form a water droplet WD1 or a water film WF1. For example, the control device 405 retains the mist that has landed by reducing the particle size of the mist or controlling the amount of mist that has landed in the premist mode.

Thereafter, when the user leaves the toilet room, the after mist mode is executed. As shown in FIG. 24B, in the after mist mode, the mist of sterilized water is landed on the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B in the premist mode. Thereby, in the after mist mode, the water droplet WD1 or the water film WF1 is washed away by increasing the volume of the water droplet WD1 or the water film WF1. That is, as the volume increases and the dead weight increases, the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B flows down to the cleaning region 801A. In the premist mode, the first step and the second step may be continuous in time.
For example, when the detection sensor 402 detects a user due to an erroneous entry or the like and the first step in the premist mode is executed, the second step is executed, and the water droplet WD1 or water formed in the non-cleaning region 801B The membrane WF1 is allowed to flow down.

  The mist sprayed in the premist mode stays in the cleaning region 801A and the non-cleaning region 801B, and for example, the water droplet WD1 or the water film WF1 is not flowed until the aftermist mode is executed. Thereby, compared with the case where the inside of the bowl part 801 is only wet, adhesion and adhesion of filth can be suppressed more. In the after mist mode, the mist of the sterilized water sprayed from the spray device 481 reaches the non-cleaning region 801B. Thereby, generation | occurrence | production of the microbe and dirt by the filth which is not washed away with washing water can be suppressed.

  In addition, when the water droplet WD1 or the water film WF1 formed by the premist mode remains attached to the non-cleaning region 801B, the water droplet WD1 or the water film WF1 evaporates to deposit a scale, and the non-cleaning region 801B is contaminated with scale. May occur. On the other hand, it is possible to prevent the water droplet WD1 or the water film WF1 from remaining in the non-cleaning region 801B by washing away the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B by the after mist mode. Thereby, generation | occurrence | production of scale dirt can be suppressed. Therefore, generation | occurrence | production of the stain | pollution | contamination dirt visible in a short period can be suppressed in non-washing area | region 801B, suppressing generation | occurrence | production of a microbe and dirt in the wide range of the toilet bowl 800 containing non-washing area | region 801B.

FIG. 25A and FIG. 25B are cross-sectional views illustrating another operation in the premist mode of the toilet seat device according to the embodiment.
In this example, the premist mode has a first step shown in FIG. 25A and a second step shown in FIG.

  As shown in FIG. 25A, in the first step, mist is landed on the non-cleaning region 801B, and a water droplet WD1 or a water film WF1 is formed on the non-cleaning region 801B. In the first step, mist may also land on the cleaning region 801A to form water droplets or a water film.

  As shown in FIG. 25B, in the second step, mist is landed on the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B in the first step. Accordingly, in the second step, the water droplet WD1 or the water film WF1 is washed away by increasing the volume of the water droplet WD1 or the water film WF1. That is, as the volume increases and the dead weight increases, the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B flows down to the cleaning region 801A.

  By washing away the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B by the first step by the second step, it is possible to suppress the water droplet WD1 or the water film WF1 from remaining in the non-cleaning region 801B. Thereby, generation | occurrence | production of scale dirt can be suppressed. Therefore, generation | occurrence | production of the stain | pollution | contamination dirt visible in a short period can be suppressed in non-washing area | region 801B, suppressing generation | occurrence | production of a microbe and dirt in the wide range of the toilet bowl 800 containing non-washing area | region 801B.

  In addition, in the premist mode, when the mist is sprayed so that the mist that has landed immediately flows down, the mist splashes in the bowl portion 801 and scatters out of the toilet bowl 800 because the mist has a large particle size and flow rate. There is a fear. On the other hand, in this example, after forming the water droplet WD1 or the water film WF1 in the first step, the water droplet WD1 or the water film WF1 is caused to flow down by increasing the volume of the water droplet WD1 or the water film WF1 in the second step. Yes. Thereby, it can suppress that mist scatters out of a toilet bowl.

FIG. 26A and FIG. 26B are plan views illustrating the toilet bowl and toilet seat according to the embodiment.
FIG. 26A shows the back surface 204 side of the seating portion 200. A toilet seat leg portion 210 is provided on the back surface 204 of the seating portion 200. The toilet seat leg portion 210 is provided so as to protrude from the back surface 204, and contacts the rim upper surface 806 of the toilet bowl 800 when the seat portion 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. 26B, the rim upper surface 806 of the toilet bowl 800 has a region 810 where the toilet seat leg 210 comes into contact with the seat 200 when the seat 200 is closed.

  In the mist mode (for example, the after mist mode or the manual mist mode) in which the mist of the sterilized water is sprayed on the rim upper surface 806 and the seating portion 200, if the toilet lid 300 is in an open state, There is a risk of mist splashing. Therefore, in order to suppress scattering of mist, it is desirable that the toilet lid 300 and the seating portion 200 are closed. On the other hand, in the mist mode in which mist of sterilized water is sprayed on the rim upper surface 806 and the seating portion 200, when the toilet lid 300 and the seating portion 200 are closed, the region 810 of the rim upper surface 806 and the toilet seat leg 210 are Since they are in contact with each other, the mist cannot land on the region 810 and the toilet seat leg 210. Further, when the toilet lid 300 and the seating portion 200 are closed, the rim upper surface 806 and the seating portion 200 are close to each other, so that the outer peripheral portion 204e of the back surface 204 of the seating portion 200 and the outer peripheral portion 806e of the rim upper surface 806 are disposed. Mist is difficult to reach.

Therefore, in one embodiment of the toilet seat apparatus 100, the after mist mode or the manual mist mode has a first process and a second process described below.
FIG. 27A and FIG. 27B are cross-sectional views illustrating operations in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment.
Fig.27 (a) represents a 1st process and FIG.27 (b) represents a 2nd process. As shown in FIG. 27A, in the first step, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512 to close the seat portion 200 and the toilet lid 300 (fully closed). State). In the state where the toilet lid 300 is closed, in the first step, mist of sterilized water is sprayed on the rim upper surface 806 and the seating portion 200. In the first step, since the toilet lid 300 is in a closed state, a large amount of mist is sprayed on the rim upper surface 806 and the seating portion 200 while suppressing the mist from being scattered outside the toilet bowl 800 and the toilet seat apparatus 100. can do.

  As shown in FIG. 27B, in the second step, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512 to open the seating portion 200 and the toilet lid 300. In the state where the seating portion 200 and the toilet lid 300 are opened, in the second step, mist of sterilized water is sprayed on the rim upper surface 806 and the seating portion 200. Thereby, a 2nd process sprays the mist of disinfecting water on the area | region 810 where the toilet seat leg part 210 of the rim upper surface 806 contacts. In the second step, since the seating portion 200 is in an open state, the mist can also be landed on the toilet seat leg portion 210 and the region 810 of the rim upper surface 806. Further, mist is likely to land on the outer peripheral portion 806 e of the rim upper surface 806 and the outer peripheral portion 204 e of the seating portion 200.

  The control device 405 executes the second step, for example, after executing the first step in one after-mist mode and manual mist mode. Alternatively, the first step may be performed after the second step. A wide range including the region 810 where the toilet seat leg portion 210 of the rim upper surface 806 contacts while suppressing the mist from being scattered outside the toilet bowl 800 and the toilet seat device 100 by the first step and the second step described above. A lot of mist is allowed to land on the surface, and the generation of bacteria and dirt can be suppressed.

  In the second step of the after mist mode or the manual mist mode, the range in which the seating portion 200 and the toilet lid 300 are opened includes not only the fully open state but also the half open state. The fully open state is a state where the opening degree is maximum in normal use. The half-open state is a state where the opening degree is smaller than that of the fully-open state. That is, the half-open state is a state between the fully open state and the fully closed state, and the opening degree is not limited to half of the fully open state.

  In the second step, when the seating portion 200 is in the fully opened state, the toilet seat leg portion 210 is far from the rim upper surface 806, so that it is difficult to cause the toilet seat leg portion 210 to mist. On the other hand, in the example shown in FIG. 27B, the control device 405 controls the toilet seat motor 511 so that the seating portion 200 is in a half-open state in the second step. For this reason, the distance between the toilet seat leg part 210 and the rim upper surface 806 can be shortened compared with the case where the seating part 200 is in a fully open state. Thereby, the mist of sterilized water can also be made to land in the toilet seat leg part 210 where it is difficult for the mist of the sterilized water to reach in the first step.

  Further, for example, the control device 405 determines that the total amount (ml) of the sterilized water mist sprayed on the rim upper surface 806 side in the first step is the total amount of the sterilized water mist sprayed on the rim upper surface 806 side in the second step. The spraying device 481 is controlled to be larger than (ml). For example, the total amount of the sterilizing water mist landing on the rim upper surface 806 in the first step is larger than the total amount of the sterilizing water mist landing on the rim upper surface 806 in the second step. Since many mists of sterilized water land on the rim upper surface 806 in the first step, generation of bacteria and dirt on the rim upper surface 806 can be further suppressed. At this time, since the toilet lid 300 is in the closed state in the first step, even if a large amount of mist is sprayed, there is little risk that the mist will be scattered outside the toilet bowl 800 and the toilet seat apparatus 100. On the other hand, in the second step in which the toilet lid 300 is opened together with the seating portion 200, mist is likely to be scattered out of the toilet bowl 800 and the toilet seat device 100 as compared with the first step. Therefore, in the second step, a relatively small amount of mist is allowed to land on the rim upper surface 806, so that the mist can be prevented from being scattered outside the toilet bowl 800 and the toilet seat apparatus 100.

  Specifically, for example, the control device 405 has a time for spraying the mist of sterilized water on the rim upper surface 806 side in the first step and a time for spraying the mist of sterilized water on the rim upper surface 806 side in the second step. The spraying device 481 is controlled so as to be longer. That is, for example, the time for which the first step is executed is longer than the time for which the second step is executed. Thereby, the total amount of mist sprayed on the rim upper surface 806 side in the first step can be made larger than the total amount of mist sprayed on the rim upper surface 806 side in the second step.

FIG. 28A and FIG. 28B are cross-sectional views illustrating the operation in the second step of the after mist mode or the manual mist mode of the toilet seat device according to the embodiment.
In the second step of the after mist mode or the manual mist mode, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512 while spraying mist of sterilized water on the rim upper surface 806 side. At least one of the seating part 200 and the toilet lid 300 may be moved. FIG. 28A shows a state in which the seating part 200 is moved in the opening direction in the second step. When the seating portion 200 is rotated from below to above as indicated by the arrow A7, an air flow f2 (upward air flow) is generated in the vicinity of the rim upper surface 806. Since the mist of the sterilized water rides on the airflow f2, the mist of the sterilized water can be landed in a wider area on the rim upper surface 806.

  FIG. 28B shows a state where the seating part 200 is moved in the closing direction in the second step. When the seating portion 200 is rotated downward from above as indicated by an arrow A8, an air flow f3 is generated in the vicinity of the rim upper surface 806. Thereby, the mist in the vicinity of the rim upper surface 806 is diffused, and the mist of the sterilized water can be landed in a wider area on the rim upper surface 806.

  In the example shown in FIGS. 28A and 28B, the control device 405 moves the seating portion 200, but the toilet lid 300 may be moved similarly. In the second step, the control device 405 may stop one of the seating portion 200 and the toilet lid 300 and move the other, or may move both.

FIG. 29 is a plan view illustrating a toilet device according to an embodiment.
In FIG. 29, the toilet bowl 800 is represented by a solid line. Moreover, the casing 400 of the toilet seat apparatus 100 mounted on the upper surface of the toilet bowl 800, that is, the rim upper surface 806 is indicated by a broken line.

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

  A packing 490 is provided between the casing 400 and the placement portion 806r of the rim upper surface 806. The packing 490 is disposed in front of the placement portion 806r in accordance with the shape of the casing 400. Thereby, it is possible to prevent cleaning water, mist, filth, and the like from entering the rear side of the packing 490.

  On the front side of the packing 490, a gap SP is generated between the placing portion 806r and the casing 400. For example, in the after-mist mode or the manual mist mode, when the sterilized water mist is sprayed not only in the bowl portion 801 but also on the rim upper surface 806, the sterilized water mist may enter the gap SP. Since the gap SP is a portion that is difficult for the user to visually check, the mist that has entered the gap SP and has landed on the mounting portion 806r becomes a large water droplet WD2 or a water film WF2 without knowing it. Dripping water may occur.

  Therefore, in the after mist mode or the manual mist mode, the spray device 481 has an average water landing amount per unit area of the sterilizing water landing on the non-mounting portion 806f, and the sterilizing water landing on the mounting portion 806r. Bactericidal water is jetted out so as to be larger than the average amount of water landing per unit area. The spraying device 481 desirably causes the non-mounting portion 806f to land with sterilized water and does not allow the mounting portion 806r to land with sterilized water.

  By causing a larger amount of sterilized water to land on the non-mounting portion 806f than the mounting portion 806r, generation of bacteria and dirt in the non-mounting portion 806f can be suppressed. The non-mounting portion 806f is a portion that is easy to dry because air is less likely to stay than the mounting portion 806r, and is a portion that is easy for the user to see and wipe off. Therefore, even when sterilized water has landed on the non-mounting portion 806f of the rim upper surface 806, the sterilized water aggregates in the non-mounting portion 806f and becomes large water droplets or a water film without knowing it. The possibility of dripping out of the toilet bowl 800 is low. In addition, since the disinfecting water that reaches the mounting portion 806r is relatively small, the disinfecting water aggregates in the mounting portion 806r to form large water droplets or a water film without knowing it. It can suppress drooping outside. Therefore, when mist of sterilized water is sprayed on the rim upper surface 806 of the toilet bowl 800, water leakage to the outside of the toilet bowl 800 can be suppressed.

In addition, the average amount of water landing per unit area can be measured as follows.
First, after execution of the after mist mode or the manual mist mode, the mist that has landed on the non-mounting portion 806f is wiped off with a Kim towel. By removing the difference between the weight of the kim towel before wiping off the mist and the weight after wiping off the mist by the area of the wiped non-mounting portion 806f, the sterilized water that has landed on the non-mounting portion 806f The average amount of water landing per unit area is calculated. Similarly, after the execution of the after mist mode or the manual mist mode, the mist that has landed on the placing portion 806r on the front side of the packing 490 is wiped off with a Kim towel. By dividing the difference between the weight of the Kim towel before wiping off the mist and the weight after wiping off the mist by the area of the mounting portion 806r that has been wiped off, the unit of sterilized water that has landed on the mounting portion 806r The average amount of water landing per area is calculated.

FIG. 30 is a cross-sectional view illustrating an operation in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment.
FIG. 31A and FIG. 31B are perspective views illustrating the operation in the after mist mode or the manual mist mode of the toilet seat device according to the embodiment.
In this example, the spray device 481 includes a first water discharge unit 51 and a second water discharge unit 52. For example, a nozzle that can eject (spray) tap water or sterilized water is used for the first water discharger 51. For the second water discharger 52, for example, the disk 481b described above is used.

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

  FIG. 31A illustrates the operation of the second water discharger 52 in the after mist mode or the manual mist mode. The second water discharge unit 52 causes the non-mounting part 806f of the rim upper surface 806 to land with sterilized water. In addition, the second water discharger 52 also causes the sterilized water to land on the front side of the second water discharger 52 in the bowl 801.

  For example, the second water discharger 52 sprays mist of sterilized water forward and downward. Part of the sprayed mist rides on the rising air flow U1 formed by the blower 513 and rises above the rim upper surface 806. As a result, mist of sterilized water lands on the non-mounting portion 806f, the seating portion 200, and the toilet lid 300.

  FIG. 31B illustrates the operation of the first water discharger 51 in the after mist mode or the manual mist mode. The first water discharger 51 ejects (sprays) the sterilized water backward and downward, and causes the sterilized water to land on the rear side (the mounting unit 806r side) of the first water discharger 51 in the bowl 801. .

  The spray device 481 is provided inside or below the casing 400. Further, the sterilized water sprayed from the spray device 481 gradually falls due to its own weight. Therefore, in order to make the non-mounting part 806f land with sterilized water, it is desirable to spray the sterilized water from a high position. Therefore, as shown in FIG. 30, the second water discharge unit 52 is disposed above the first water discharge unit 51 (nozzle water discharge port). Thereby, sterilization water can be made to land on the non-mounting part 806f more reliably. On the other hand, in order to suppress landing of sterilized water on the mounting portion 806r, it is desirable to spray (spray) the sterilized water from a low position. Since the 1st water discharging part 51 (nozzle water discharge port) is arrange | positioned below rather than the 2nd water discharging part 52, it can suppress more that disinfecting water lands on the mounting part 806r.

  Moreover, since the 2nd water discharging part 52 makes disinfection water land on the non-mounting part 806f of the rim upper surface 806 which a user may touch, it is desirable that it is clean. Therefore, the second water discharger 52 is disposed inside the casing 400. Further, the second water discharger 52 (disk 481b) is located above the rim upper surface 806. Thereby, it is possible to prevent filth from adhering to the second water discharger 52 and to ensure the cleanliness of the second water discharger 52.

  On the other hand, since the 1st water discharging part 51 makes sterilization water land on the mounting part 806r side in the bowl part 801 with a low possibility of a user touching, cleanliness is a problem compared with the 2nd water discharging part 52. Hard to become. Therefore, the first water discharger 51 is disposed so as to protrude below the casing 400. For example, the first water discharge portion 51 (nozzle water discharge port) is located below the rim upper surface 806. Thereby, the 1st water discharging part 51 can be arrange | positioned in a low position, and it can suppress more that disinfecting water lands on the mounting part 806r.

  Further, the spray device 481 (second water discharge portion 52) is large enough not to ride on the rising air flow U1 at least a part of the sterilized water sprayed to the placement portion 806r side (rear side) from the spray device 481 in a top view. It will be formed. On the other hand, the spraying device 481 (first water discharger 51) is large enough to ride at least part of the sterilized water sprayed on the non-mounting portion 806f (front side) more than the spraying device 481 in the top view. Form.

  Specifically, the spraying device 481 makes the sterilized water ejected to the mounting portion 806r side of the spraying device 481 in a top view into a shower shape, a film shape, or a mist shape having a first particle size. Moreover, the spraying device 481 makes the sterilized water sprayed to the non-mounting portion 806f side of the spraying device 481 in a top view into a mist shape having a second particle size smaller than the first particle size.

  As a result, the sterilized water ejected from the spray device 481 to the non-mounting portion 806f side is more likely to ride on the rising air flow than the sterilized water sprayed to the mounting portion 806r side, and the non-mounting portion 806f Bactericidal water can be landed. On the contrary, the sterilized water ejected from the spray device 481 to the placement unit 806r side is less likely to ride the ascending air flow than the sterilized water ejected to the non-placement unit 806f side, and the sterilization water enters the placement unit 806r. Can be prevented from landing.

  In addition, the average value or median value of the mist particle size distribution can be used for the comparison between the first particle size and the second particle size. The shower shape and the film shape are in the form of water larger than the fine particles of mist. The dead weight of the shower-like and membrane-like sterilized water is larger than the dead weight of the mist particles having the first particle size. The shower-like sterilizing water may be in the form of threads or large particles. The shape and size of the sterilized water ejected to the placement unit 806r side can be adjusted by, for example, the shape of the water discharge port of the first water discharge unit 51.

  30 and FIG. 31, the case where two water discharge parts were provided was demonstrated. However, the number of water dischargers may be 1 or 3 or more. By appropriately changing the spraying direction, spraying range, mist particle size, and the like, a large amount of sterilized water is landed on the non-mounting portion 806f, and the sterilizing water is prevented from landing on the placing portion 806r. can do.

FIG. 32 is a flowchart illustrating the operation in the manual mist 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 mist mode based on the operation information of the manual operation unit 500. Here, if the operation of the manual operation unit 500 is continuously performed for a short time and the manual mist mode is continuously performed for a short time, the seating unit 200 may be excessively wet. . As a result, a user who touches the mist that has landed on the seating section 200 may feel uncomfortable or the mist that has landed may droop out of the toilet 800.

  Therefore, in the example shown in FIG. 32, the control device 405 has a continuous manual mist prohibition mode. The continuous manual mist prohibition mode is determined when the manual operation unit 500 is operated again within a predetermined time after execution of the manual mist mode (before the predetermined time elapses from the end of the manual mist mode). It is prohibited to execute the manual mist mode again until the time elapses. In addition, the continuous manual mist prohibition mode means that even when the manual operation unit 500 is operated again during execution of the manual mist mode, the manual mist mode is executed again until a predetermined time elapses from the end of the manual mist mode. Ban.

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

  As described above, even if the manual operation unit 500 is operated during execution of the manual mist mode or within a predetermined time after execution, the manual mist mode is not executed again in the continuous manual mist prohibition mode. Thereby, even if manual operation which sprays mist for a short time is performed continuously, it can control that too much mist lands on seating part 200. Many mists can land on the seating part 200 and the user can feel uncomfortable, and the mist that has landed on the seating part 200 can be prevented from dripping out of the toilet 800.

  Note that the predetermined time in step S402 is set to such a time that, even if the manual mist mode is executed again and the mist is further landed on the seating portion 200, the landed mist does not drip out of the toilet 800. The The predetermined time is appropriately determined according to the amount of mist sprayed in the manual mist mode, and is, for example, not less than 10 seconds and not more than 5 minutes. The predetermined time may be a time during which the mist that has landed on the seating portion 200 in the previous manual mist mode evaporates.

  The user can remove bacteria and dirt attached to the seating portion 200 by wiping the mist that has landed on the seating portion 200 using the manual mist mode with toilet paper or the like. After the user wipes off almost all of the mist that has landed on the seating part 200, if the dirt still remains on the seating part 200, the user executes the manual mist mode again and wipes off the remaining dirt. Sometimes you want to. In such a case, it is inconvenient for the user to wait for a predetermined time.

  Therefore, the control device 405 has a manual mist release mode that cancels the execution of the continuous manual mist prohibition mode before a predetermined time elapses from the end of the manual mist mode, and enables the manual mist mode again. Thereby, even if the predetermined time has not elapsed since the previous manual mist mode, the manual mist mode can be executed again, and the usability can be improved.

  The toilet seat apparatus 100 includes a wiping operation detection unit that detects that the user has performed a wiping operation on the seating portion 200. The control device 405 executes the manual mist release mode based on the detection information of the wiping operation detection means.

  As shown in FIG. 32, when it is detected by the wiping operation detection means that the user has performed the wiping operation (step S404: Yes), the manual mist release mode is executed. That is, the manual mist mode can be executed again, and the manual mist mode is executed (step S403).

  As the wiping operation detection means, for example, a seating detection sensor 404 can be used. The control device 405 estimates the presence / absence of a wiping operation based on the detection information of the seating detection sensor 404. By using the seating detection sensor 404, it is possible to more reliably detect the wiping operation of the seating portion by the user. For example, when the seating detection sensor 404 is a sensor that can detect a load applied to the seating portion 200, the user wipes off based on the magnitude of the load applied to the seating portion 200 and the time when the load is applied. It is possible to detect that an operation has been performed. For example, when the seating detection sensor 404 is a sensor that can acquire the distance to the human body, it can be detected that the user has performed the wiping operation based on the change in the distance.

  In addition, when the user operates the manual operation unit 500 to execute the manual mist mode, the manual mist mode is not executed in the continuous manual mist prohibition mode, and the mist is not sprayed. There is a risk of misidentifying that the device 100 has failed. Therefore, when the wiping operation of the user is not detected (step S404: No), the control device 405 notifies the notification means that the continuous manual mist prohibition mode has been executed (step S405). Thereby, a user's misidentification can be prevented. As the notification means, any means capable of performing notification by sound or light can be used. For example, a speaker, an LED, a liquid crystal display, or the like can be appropriately provided in the manual operation unit 500 or the casing 400 as a notification unit.

  Furthermore, the toilet seat apparatus 100 includes an operation unit (for example, a manual operation unit 500) for inputting that the user has performed a wiping operation on the seating unit 200. The control device 405 executes the manual mist release mode based on the input information input to the operation unit. For example, when the user operates a switch or the like of the manual operation unit 500, input information (signal) is sent to the control device 405, and when receiving the input information, the control device 405 executes the manual mist release mode (step S406). : Yes). As a result, the manual mist mode can be executed again, and the manual mist mode is executed (step S403). By using such an operation unit, it is possible to more reliably detect the wiping operation of the seating unit 200 by the user and improve usability. Note that the user may operate the operation unit as necessary without performing the wiping operation.

  When the user does not operate the operation unit that inputs that the wiping operation has been performed on the seating unit 200 (step S406: No), the manual mist mode is executed until a predetermined time elapses from the end of the manual mist mode. The prohibited state is maintained.

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

  The first manual mist mode is an operation mode in which when the user operates the manual operation unit 500, the spray device 481 is controlled to spray the sterilized water mist onto the seating unit 200.

  On the other hand, in the second manual mist mode, when the manual operation unit 500 is operated again within a predetermined time after the execution of the first manual mist mode (before the predetermined time elapses from the end of the first manual mist mode), The device 481 is controlled to spray the mist of sterilized water on the seating portion 200. Further, in the second manual mist mode, even when the manual operation unit 500 is operated again during the execution of the first manual mist mode, the spray device 481 is controlled to spray the mist of the sterilized water onto the seating unit 200. To do.

  In other words, it is prohibited to execute the first manual mist mode again until a predetermined time has elapsed from the end of the first manual mist mode, and the second manual mist mode is executed instead.

  For example, as shown in FIG. 33, when the user operates the manual operation unit 500 to input the start of the manual mist mode (step S501: Yes), the control device 405 ends the previous first manual mist mode. It is determined whether or not a predetermined time has elapsed from step S502. When the predetermined time has elapsed (step S502: Yes), the control device 405 executes the first manual mist mode (step S503). On the other hand, when the first manual mist mode is being executed or when the predetermined time has not elapsed since the end of the previous first manual mist mode (step S502: No), and no wiping operation has been detected (step S504: No), the control device 405 executes the second manual mist mode.

  Thus, when the manual operation unit 500 is operated during the first manual mist mode or within a predetermined time after the execution, the second manual mist mode in which the amount of mist sprayed is smaller than that in the first manual mist mode. Executed. Thereby, even if manual operation which sprays mist is performed continuously, it can control that too much mist lands on seating part 200. Many mists can land on the seating part 200 and the user can feel uncomfortable, and the mist that has landed on the seating part 200 can be prevented from dripping out of the toilet 800.

  Note that the predetermined time in step S502 is, for example, such a time that the first manual mist mode is executed again and the mist that has landed on the seating portion 200 does not drip out of the toilet 800. Is set. The predetermined time is appropriately determined according to the amount of mist to be sprayed, and is, for example, not less than 10 seconds and not more than 5 minutes. The predetermined time may be a time during which the mist that has landed on the seating portion 200 in the previous first manual mist mode evaporates.

  When the user wants to further wipe off the dirt remaining on the seating portion 200 after executing the first manual mist mode, if the amount of mist sprayed is small in the second manual mist mode, the dirt may be difficult to wipe off and may be inconvenient.

  Therefore, the control device 405 has a manual mist release mode that allows the first manual mist mode to be executed again before a predetermined time has elapsed since the end of the first manual mist mode. Thereby, even if the predetermined time has not elapsed since the previous first manual mist mode, the first manual mist mode can be executed again, and the usability can be improved.

As shown in FIG. 33, when it is detected by the wiping operation detection means that the user has performed the wiping operation (step S504: Yes), the manual mist release mode is executed. That is, the first manual mist mode can be executed again, and the first manual mist mode is executed (step S503).
In addition, when the user operates the manual operation unit 500, the first manual mist mode is not executed, the second manual mist mode is executed, and if the amount of mist sprayed is small, the user may cause the toilet seat device 100 to malfunction. There is a risk of misunderstanding. Therefore, when the user's wiping operation is not detected (step S504: No), the control device 405 notifies the notification means that the second manual mist mode has been executed (step S505). Thereby, a user's misidentification can be prevented.

  Further, when an operation unit that inputs that the user has performed a wiping operation on the seating unit 200 is operated, input information (signal) is sent to the control device 405, and the control device 405 receives the input information. When received, the manual mist release mode is executed (step S506: Yes). As a result, the first manual mist mode can be executed again, and the first manual mist mode is executed (step S503).

  When the operation for inputting that the user has performed the wiping operation on the seating unit 200 is not operated (step S506: No), the second manual mist mode is executed (step S507).

FIG. 34A and FIG. 34B are perspective views illustrating the particle size measurement method according to the embodiment.
Laser diffraction is used to measure the particle size. When the fine particles are irradiated with laser, diffraction scattered light is generated from the fine particles in various directions. The intensity of diffracted scattered light has a spatial pattern in the direction in which light is emitted. This spatial pattern is called a light intensity distribution pattern. The light intensity distribution pattern changes depending on the particle size of the fine particles. The particle diameter can be calculated by detecting the light intensity distribution pattern using the correlation between the particle diameter of the fine particles and the light intensity distribution pattern.

  As shown in FIGS. 34A and 34B, the particle size measuring apparatus 600 includes a light emitting unit 601 and a light receiving unit 602. The light receiving unit 602 is provided so as to receive a laser emitted from the light emitting unit 601. In the measurement of the particle size, the laser emitted from the light emitting unit 601 is irradiated to the mist M sprayed from the spraying device 481. The light receiving unit 602 receives diffraction scattered light generated by laser irradiation. Thereby, a light intensity distribution pattern can be detected. Aerotrack LDSA-3500A (manufactured by Microtrack Bell Co., Ltd.) can be used for the measuring device.

FIG. 35 is a block diagram illustrating the main configuration of a toilet apparatus according to a modified example of the embodiment.
In addition, FIG. 35 represents together the principal part structure of the waterway system and the electrical system.
As shown in FIG. 35, in this example, the electromagnetic valve 431, the sterilizing device 450, the switching valve 472, the spraying device 481, the nozzle motor 476, the nozzle 473, the nozzle cleaning chamber 478, the flow paths 110 to 113, etc. Built in the toilet bowl 800. In this example, the toilet seat motor 511 (rotating device), the toilet lid motor 512 (rotating device), the blower 513, the warm air heater 514, and the like are incorporated in the toilet bowl 800. In this example, the detection sensor 402 (for example, the human body detection sensor 403, the seating detection sensor 404, etc.) and the control device 405 are incorporated in the toilet 800.

  As described above, each member (hereinafter referred to as “functional part”) incorporated in the casing 400 of the toilet seat apparatus 100 in the example illustrated in FIG. 4 may be incorporated in the toilet bowl 800. Even when the functional unit is incorporated into the toilet bowl 800, the spraying device 481 and the like can be operated in the same manner as when the functional unit is incorporated into the casing 400.

  Further, when the functional unit is incorporated in the toilet bowl 800 as described above, the casing 400 of the toilet seat apparatus 100 may be omitted. Alternatively, a seating portion 200 and a toilet lid 300 may be provided instead of the toilet seat device 100. In this case, for example, the seat portion 200 and the toilet lid 300 are pivotally supported so as to be freely opened and closed with respect to the toilet bowl 800, respectively. In this case, for example, the nozzle damper 479, the mist damper 482, and the blower damper 516 are pivotally supported with respect to the toilet 800 so as to be rotatable.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, dimensions, material, arrangement, installation form, and the like of each element included in the toilet bowl, toilet seat apparatus, and the like are not limited to those illustrated, and can be changed as appropriate.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  DESCRIPTION OF SYMBOLS 10 Toilet apparatus, 51 1st water discharging part, 52 2nd water discharging part, 100 Toilet seat apparatus, 110-113 Flow path, 200 Seating part, 200a Opening, 204 Back surface, 204e Outer peripheral part, 210 Toilet seat leg part, 300 Toilet lid, 400 Casing, 402 detection sensor, 403 human body detection sensor, 404 seating detection sensor, 405 control device, 431 electromagnetic valve, 450 sterilization device, 472 switching valve, 473 washing nozzle, 474 water discharge port, 476 nozzle motor, 478 nozzle cleaning chamber, 479 Nozzle damper, 481 spraying device, 481a motor, 481b disk, 481c water supply port, 482 mist damper, 490 packing, 500 manual operation unit, 511 toilet seat motor, 512 toilet lid motor, 513 air blower, 514 hot air heater, 514 5 Toilet seat heater, 516 air blow damper, 516a opening, 600 measuring device, 601 light emitting unit, 602 light receiving unit, 800 toilet, 801 bowl unit, 801A cleaning region, 801B non-cleaning region, 801F front end non-cleaning region, 801w , 805 rim part, 805B shelf-like part, 806 rim upper surface, 806e outer peripheral part, 806f non-mounting part, 806r mounting part, 810 area, 811 spout, 821 upper area, 822 lower area, 823 round part, 824 mist Guide part, B1 bottom surface, M, M1, M2 mist, S slit, S1 upper end surface, SF swirl flow, SU first measurement point, SL second measurement point, SP gap, U1 updraft, W water, OB spray object , F1 updraft, f2, f3 airflow, WD1, WD2 water droplets, WF1, WF2 Water film, θs Spray angle, Ds Spray direction

Claims (6)

A bowl part for receiving filth, an upper surface of a rim positioned on the bowl part, and a spout for discharging cleaning water for discharging the filth from the bowl part into the bowl part. Is a toilet having a washing region through which the washing water passes, and a non-washing region located above the washing region and below the upper surface of the rim,
A seating unit installed at the top of the toilet and seated by a user;
A spraying device located on the rear side of the bowl part and spraying mist into the bowl part;
A detection sensor for detecting the user;
A control device for controlling the spraying device based on detection information of the detection sensor;
With
The control device automatically controls the spray device when the detection sensor detects the user from a state where the detection sensor is not detecting the user so that the mist is placed in the bowl portion. The premist mode to spray can be executed,
In the premist mode, the control device allows the mist to directly land on the front end side non-cleaning region, which is the front end of the non-cleaning region, and to directly land on the upper region of the front end side non-cleaning region. The toilet apparatus is characterized in that the spraying device is controlled so that the average water landing amount per unit is less than the average water landing amount per unit area of the mist that directly reaches the lower region of the front end side non-cleaning region. The upper region has an inclined surface that is inclined downward toward the outside of the bowl portion,
The toilet device according to claim 1, wherein the lower region has an inclined surface inclined downward toward the inside of the bowl portion.   In the premist mode, the control device controls the spraying device so that a particle size of mist directly landing on the lower region is larger than a particle size of mist directly landing on the upper region. The toilet device according to claim 1 or 2. A bowl part for receiving filth, an upper surface of a rim positioned on the bowl part, and a spout for discharging cleaning water for discharging the filth from the bowl part into the bowl part. Is a toilet seat device installed on the upper part of a toilet having a washing region through which the washing water passes and a non-washing region located above the washing region and below the upper surface of the rim,
A seating section on which the user sits;
A spraying device located on the rear side of the bowl part and spraying mist into the bowl part;
A detection sensor for detecting the user;
A control device for controlling the spraying device based on detection information of the detection sensor;
With
The control device automatically controls the spray device when the detection sensor detects the user from a state where the detection sensor is not detecting the user so that the mist is placed in the bowl portion. The premist mode to spray can be executed,
In the premist mode, the control device allows the mist to directly land on the front end side non-cleaning region, which is the front end of the non-cleaning region, and to directly land on the upper region of the front end side non-cleaning region. The toilet seat device is characterized in that the spray device is controlled so that the average amount of water per unit is less than the average amount of water per unit area of mist that directly lands on the lower region of the front end side non-cleaning region. The upper region has an inclined surface that is inclined downward toward the outside of the bowl portion,
The toilet seat device according to claim 4, wherein the lower region has an inclined surface inclined downward toward the inside of the bowl portion.   In the premist mode, the control device controls the spraying device so that a particle size of mist directly landing on the lower region is larger than a particle size of mist directly landing on the upper region. The toilet seat device according to claim 4 or 5.

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