JP2019112817A - Toilet seat device - Google Patents

Abstract

To provide a toilet seat device that while suppressing generation of bacteria and dirt in a wide range including a toilet bowl and a toilet seat part using a pre-mist mode and an after-mist mode, is capable of preventing a user from being wetted with sterilization water or tap water sprayed in the pre-mist mode.SOLUTION: There is provided a toilet seat device comprising: a toilet seat part; a sterilization device for generating sterilization water; a spraying device; a detection sensor for detecting a user; and a control device for controlling the sterilization device and the spraying device. The control device can execute: an after-mist mode in which mist of the sterilization water is automatically sprayed to the inside of a toilet bowl and the toilet seat part in a state in which the user is not detected by the detection sensor; and a pre-mist mode in which mist of the sterilization water or mist of tap water is automatically sprayed to the inside of the toilet bowl so that the sterilization water or the tap water does not land on the toilet seat part in a state in which the user is detected by the detection sensor.SELECTED DRAWING: Figure 8

Description

  Aspects of the invention generally relate to a toilet seat device.

  In the toilet apparatus described in Patent Document 1, hypochlorous acid water or tap water is automatically sprayed on the bowl portion of the toilet bowl before use of the toilet apparatus (for example, when a human body detection sensor detects a human body), Hypochlorous acid water is automatically sprayed on the bowl portion of the toilet bowl after use of the toilet apparatus (for example, when the human body detection sensor no longer detects the user). In this toilet apparatus, hypochlorous acid water or tap water is sprayed only on the bowl portion of the toilet bowl, so from the viewpoint of suppressing the generation of bacteria and dirt in every corner of the toilet bowl, toilet seat and toilet lid, etc. There is room for improvement.

  In the toilet bowl with a mist cleaning device described in Patent Document 2, mists of ozone water, electrolytic sterilization water, and high-temperature water are sprayed based on a manual operation of the user. In patent document 2, it is supposed that the mist which a mist washing | cleaning apparatus generate | occur | produces can be made to reach and wash to every corner of a toilet bowl, a toilet seat, a toilet lid, etc. by air flow.

Patent No. 5029930 Unexamined-Japanese-Patent No. 2007-138605

  In order to suppress the generation of bacteria and dirt such as a toilet bowl, it is preferable to execute an after-mist mode in which disinfected water such as hypochlorous acid water is automatically sprayed after use of the toilet seat device. In addition, in the after mist mode, in order to eliminate bacteria in the toilet bowl and toilet seat, it is preferable to spray the disinfecting water over a wide range including the toilet seat as well as inside the toilet bowl.

  In addition, it may be difficult to remove the dirt stuck in the toilet bowl only in the after mist mode. Therefore, it is preferable to execute a pre-mist mode in which sterile water or tap water is automatically sprayed before using the toilet seat device. By causing the disinfected water or the tap water mist to be deposited in the toilet bowl in the pre-mist mode and forming a water film in the toilet bowl, it is possible to suppress the fixation of the filth.

  Immediately after the execution of the pre-mist mode, the user is likely to use the toilet seat device. For this reason, in the pre-mist mode, when the mist is landed in a wide range including the toilet seat and the like as in the after-mist mode, the toilet seat becomes wet when the user uses the toilet seat apparatus. In this case, when the user turns the toilet seat by hand or sits on the toilet seat, the user's buttocks and hands may touch the sterilized water or tap water that has landed on the toilet seat, which may cause discomfort. There is a problem of

  The present invention has been made based on the recognition of such problems, and by the pre-mist mode and the after-mist mode, while suppressing the generation of bacteria and dirt in a wide range such as a toilet bowl and a toilet seat, spraying by the pre-mist mode It is an object of the present invention to provide a toilet seat device capable of preventing the user from getting wet with the disinfected water or tap water.

  The first invention is a toilet seat device installed at the upper part of a toilet bowl, and a toilet seat on which a user sits down, a sterilization apparatus for producing sterilization water, mist of the sterilization water or tap water The control device includes: a spray device for spraying mist; a detection sensor for detecting the user; and a control device for controlling the bacteria removal device and the spray device based on detection information of the detection sensor. After the detection sensor automatically detects the user from the state where the detection sensor detects the user, the sprayer automatically sprays the mist of the disinfected water into the toilet bowl and the toilet seat. After the mist mode and the state where the detection sensor detects the user from the state where the detection sensor does not detect the user, the sterilization water or the tap water is not automatically applied to the toilet seat, Of the disinfected water Is a toilet seat apparatus which is a feasible and a pre mist mode for spraying the mist of the tap water in said toilet.

According to this toilet seat device, after the use of the user's toilet seat device, disinfected water can be made to reach the toilet bowl and the toilet seat in the after mist mode. This makes it possible to automatically suppress the generation of bacteria and dirt in a wide range such as the toilet seat as well as the toilet bowl.
The inside of the toilet bowl is a part where dirt is easily attached and dirt load is large. In addition, the inner wall surface of the bowl portion or the rim portion in the toilet bowl is a portion having high tolerance to wetting, since inconveniences do not easily occur even if it gets wet. Therefore, before using the toilet seat device, disinfected water or tap water is made to fall into the toilet bowl in the pre-mist mode. As a result, a water film can be formed in the toilet bowl, and sticking of the filth can be suppressed. On the other hand, the upper surface of the toilet seat or rim is a portion where dirt is less likely to adhere directly than the inner wall surface of the bowl or rim, and the dirt load is small. Therefore, even if the water film is not formed in the pre-mist mode on the upper surface of the toilet seat portion or the rim portion, the fixation of the filth is suppressed by causing the disinfecting water to land in the after-mist mode after using the toilet seat device. can do. Therefore, in this toilet seat device, in the pre-mist mode, the disinfectant water or the mist of tap water is sprayed into the toilet bowl so as not to reach the toilet seat. As a result, the user is wet with the disinfected water or tap water sprayed in the pre-mist mode while suppressing the generation of bacteria and stains in a wide range such as the toilet bowl or toilet seat by the pre-mist mode and the after-mist mode. You can prevent that. For example, even if the user rotates the toilet seat by hand immediately after the execution of the pre-mist mode or sits on the toilet seat, the user's buttocks and hands may have disinfected the disinfected water or the water that has landed on the toilet seat. It can prevent touching tap water. In addition, since the after mist mode is executed after the user's use of the toilet seat device, it is easy to secure a long non-use time as compared with before use. Therefore, even if the upper surface of the toilet seat portion or the rim portion gets wet in the after mist mode, the upper surface of the toilet seat portion or the rim portion tends to dry until the next use.
Furthermore, in the pre-mist mode, a water film can be formed in the toilet in a short time by not causing the mist to reach the toilet seat, and the execution time of the pre-mist mode can be shortened. The user who has entered the toilet room can use the toilet seat device without waiting for the end of the pre-mist mode.

  In a second invention according to the first invention, the control device is configured to control the mist of the disinfecting water sprayed in the after-mist mode with the mist of the disinfecting water sprayed in the pre-mist mode. It is a toilet seat device characterized by controlling the above-mentioned spray device so that it may become smaller than the particle size of the mist of the above-mentioned tap water.

  According to this toilet seat device, in the after-mist mode, since the particle size of the mist of the bacteriostatic water is small, the mist of the bactericidal water is easily diffused in a wide range. Thereby, bacteria and dirt can be suppressed in a wide range such as the rim portion and the toilet seat portion as well as the bowl portion of the toilet bowl. Further, in the pre-mist mode, since the particle diameter of the mist of the bactericidal water or the tap water is large, the water film can be formed on the inner wall surface of the bowl portion or the rim portion in a short time. Thus, the pre-mist mode can be ended before the user is seated on the toilet seat.

  A third invention according to the first or the second invention further comprises a blower for blowing air into the toilet bowl, wherein the spray device is installed in the upper portion of the toilet bowl with the toilet seat device In which the mist of the bactericidal water or the mist of the tap water is sprayed toward the inside of the toilet, and the after-mist mode is applied to the spray device. In a state where the mist of the sterilized water is sprayed into the toilet bowl, the blower is operated to generate a first upward air flow capable of raising the mist of the sterilized water to the toilet seat side Control the blower and the pre-mist mode generates the first ascending air flow in a state in which the mist of the disinfecting water or the mist of the tap water is sprayed into the toilet bowl in the spray device. A toilet seat and wherein the controller controls the said mist or mist of the tap water disinfection water so as not to rise to the toilet seat side blower not.

  According to this toilet seat device, it is possible to switch between when the mist sprayed from below the toilet seat is carried in the ascending air flow and the water is allowed to contact the toilet seat, and when the mist is not carried in the ascending air. With a single sprayer, in the after-mist mode, apply the mist of the disinfected water to the toilet bowl and the toilet seat, and in the pre-mist mode, do not wet the toilet seat or the disinfectant water mist or tap water mist Can be made to reach into the toilet bowl.

  A fourth invention is the toilet seat device according to the third invention, wherein the pre-mist mode stops the operation of the blower.

  According to this toilet seat device, by stopping the operation of the air blower, it is possible to more reliably prevent the mist-like disinfected water from rising to the toilet seat side in the pre-mist mode.

  In a fifth invention according to the third invention, in the pre-mist mode, the blower is operated to generate a second ascending air flow, and the flow velocity of the second ascending air flow is higher than the flow velocity of the first ascending air flow. It is a toilet seat device characterized by low.

  According to this toilet seat device, in the pre-mist mode, the second rising air flow having a flow velocity lower than the first rising air flow horizontally or downwards without raising the disinfectant water or tap water mist to the toilet seat side Can be diffused. Thus, the disinfected water can be made to reach a wider area in the toilet bowl.

  A sixth aspect of the invention is the toilet seat device according to the third to fifth aspects, wherein the spraying device sprays the mist of the sterilized water or the mist of the tap water radially in top view. is there.

  According to this toilet seat device, even when the mist of bactericidal water or the mist of tap water does not get on the rising air flow in the pre-mist mode, the mist is allowed to reach a wide area in the toilet bowl such as the bowl wall and the inner wall surface of the rim. be able to.

  A seventh invention relates to any one of the first to sixth inventions, which is an openable / closable toilet lid that covers the toilet seat from above in a closed state, and electrically opens / closes the toilet lid. And the controller performs the after-mist mode with the toilet lid closed and the pre-mist mode with the toilet lid open. It is a toilet seat device.

  According to this toilet seat device, the after-mist mode is executed with the toilet lid closed, so that the mist of the disinfected water is diffused while preventing the mist of the disinfected water from scattering out of the toilet bowl. Bacteria and stains can be suppressed in a wide range such as a toilet bowl, a toilet seat and a toilet lid. On the other hand, since the pre-mist mode is executed with the toilet lid open, the user can immediately sit on the toilet seat without waiting for the completion of the execution of the pre-mist mode. In the pre-mist mode, the spray device sprays the mist so that the mist does not reach the toilet seat. Therefore, even if the user is seated on the toilet seat during the execution of the pre-mist mode, the user The possibility of misting is low.

  According to the aspect of the present invention, the generation of bacteria and stains is suppressed in a wide range such as a toilet bowl or a toilet seat by the pre-mist mode and the after-mist mode, and the disinfected water or tap water sprayed in the pre-mist mode A toilet seat device is provided that can prevent the user from getting wet.

It is a perspective view which illustrates the toilet apparatus concerning an embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which illustrates the toilet apparatus which concerns on embodiment. It is a block diagram which illustrates the principal part composition of the toilet seat device concerning an embodiment. FIG. 4A to FIG. 4E are a plan view and a perspective view illustrating the toilet apparatus according to the embodiment. Fig.5 (a)-FIG.5 (c) are perspective views which illustrate another toilet apparatus which concerns on embodiment. FIG. 6A to FIG. 6C are schematic views illustrating the spray device according to the embodiment. Drawing 7 (a) and Drawing 7 (b) are top views which illustrate the disk of the spraying device concerning an embodiment. It is a flow chart which illustrates operation of a toilet seat device concerning an embodiment. FIG. 9A and FIG. 9B are schematic views illustrating the operation of the toilet seat device according to the embodiment. It is a schematic diagram which illustrates operation in after mist mode and manual mist mode of a toilet seat device concerning an embodiment. FIG. 11A and FIG. 11B are cross-sectional views illustrating the operation in the after mist mode and the manual mist mode of the toilet seat device according to the embodiment. Drawing 12 (a)-Drawing 12 (d) are top views which illustrate operation in after mist mode and manual mist mode of a toilet seat device concerning an embodiment. It is a flow chart which illustrates operation in after mist mode of a toilet seat device concerning an embodiment. It is a flow chart which illustrates operation in manual mist mode of a toilet seat device concerning an embodiment. It is a schematic diagram which illustrates operation in pre-mist mode of a toilet seat device concerning an embodiment. 16 (a) to 16 (c) are a cross-sectional view and a plan view illustrating the operation in the pre-mist mode of the toilet seat device according to the embodiment. FIG. 17A to FIG. 17C are a cross-sectional view and a plan view illustrating an operation in the pre-mist mode of the toilet seat device according to the embodiment. It is a flow chart which illustrates operation in after mist mode of a toilet seat device concerning an embodiment. FIG. 19A to FIG. 19E are plan views illustrating the toilet apparatus according to the embodiment. It is a table which illustrates the amount of water deposition of the mist in after mist mode. FIG. 21A and FIG. 21B are perspective views illustrating the method for measuring the particle diameter according to the embodiment. Drawing 22 (a) and Drawing 22 (b) are a top view and a sectional view which illustrate a part of toilet device concerning a modification of an embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals and the detailed description will be appropriately omitted.
FIG. 1 is a perspective view illustrating the toilet apparatus according to the embodiment.
FIG. 2 is a cross-sectional view illustrating a part of the toilet apparatus according to the embodiment.

  The toilet apparatus 10 shown in FIG. 1 includes a Western-style stool (simply referred to as a toilet bowl for convenience of the following description) 800 and a toilet seat apparatus 100. The toilet bowl 800 has a concave bowl portion 801 for receiving waste. The toilet seat device 100 is installed at the top of the toilet bowl 800.

  The toilet seat apparatus 100 has a casing 400, a toilet seat 200 on which a user sits, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are each pivotally supported on the casing 400 so as to be openable and closable. The state shown in FIG. 1 is a state in which the toilet seat 200 is closed (in a lowered state) and a state in which the toilet lid 300 is opened (in a raised state). The toilet lid 300 covers the seat surface of the toilet seat 200 from above in the closed state.

  Inside the casing 400, a body washing function unit and the like that realize washing of a user's body part (such as "butt") sitting on the toilet seat 200 is incorporated. Further, for example, the casing 400 is provided with a seating detection sensor 404 that detects that the user has sat on the toilet seat 200. For example, when the user operates the manual operation unit 500 such as a remote control while the seating detection sensor 404 detects the user sitting on the toilet seat 200, the cleaning nozzle (simply referred to as "nozzle" for convenience of the description) ) 473 can be advanced into the bowl portion 801 of the toilet 800. In the toilet seat device 100 shown in FIG. 1, the nozzle 473 is advanced into the bowl portion 801.

  At the tip of the nozzle 473, one or more water outlets 474 are provided. Then, the nozzle 473 can inject water from the water discharge port 474 provided at the tip thereof to wash the “buttock” of the user sitting on the toilet seat 200 and the like.

  In the specification of the present application, each of “upper”, “lower”, “front”, “rear”, “left side” and “right side” has its back facing the open toilet lid 300 and the toilet seat 200 It is the direction seen from the user who sat down.

  As shown in FIG. 2, the toilet bowl 800 has a rim portion 805 provided on the bowl portion 801. The rim portion 805 is an annular portion that forms the upper edge of the toilet bowl 800. In the bowl portion 801, pooled water 801w is stored. For example, when the user performs a toilet flush operation using a switch provided on a remote control or the like, or when the user stands up from the toilet seat 200, the toilet flush (discharges the inside of the bowl 801 and discharges the bowl 801). Operation of cleaning the surface of In toilet bowl cleaning, flush water is supplied into the bowl portion 801. For example, in the example of FIG. 2, flush water is discharged from the bowl water inlet 811 along the upper edge of the toilet 800.

  The rim portion 805 has an upper surface 806 and an inner wall surface 807. The upper surface 806 is a surface that faces the back surface 204 of the closed toilet seat 200. The inner wall surface 807 is a portion of the inner wall of the toilet 800 (a wall facing the center side of the bowl portion 801) above the portion through which the flush water of the toilet flush flows. That is, in the present specification, the inner wall surface 807 of the rim portion 805 refers to a non-cleaned portion in toilet bowl cleaning. In the example of FIG. 2, the inner wall surface 807 includes an elevation located above the bent portion 805B bent in a shelf shape.

  The inner wall surface 807 of the bowl portion 801 and the rim portion 805 is a portion where the load of soiling is large because the dirt is easily attached directly. In addition, since the bowl portion 801 and the inner wall surface 807 of the rim portion 805 are less likely to be inconvenient even when they get wet, they have high tolerance to the wet state.

  The upper surface 806 of the toilet seat portion 200 and the rim portion 805 is less susceptible to direct attachment of dirt than the inner wall surface 807 of the bowl portion 801 and the rim portion 805. For example, on the upper surface 806 of the toilet seat portion 200 and the rim portion 805, urine or dirty water that has hit the bowl portion 801 or the reservoir water 801w adheres. Therefore, the upper surface 806 of the toilet seat 200 and the rim 805 is a portion with a relatively low dirt load. Also, if the toilet seat 200 and the upper surface 806 of the rim 805 get excessively wet, the germicidal water may touch the user's skin or drip outside the toilet bowl, so the toilet seat 200 or rim 805 The upper surface 806 of the is a portion with low tolerance to wetting.

FIG. 3 is a block diagram illustrating the main configuration of the toilet seat device according to the embodiment.
In addition, FIG. 3 represents the principal part structure of a water channel system and an electrical system collectively.
The toilet seat device 100 includes a solenoid valve 431, a sterilizer 450, a switching valve 472, a spray device 481, a nozzle motor 476, a nozzle 473, a nozzle washing chamber 478, and flow paths 110-113. These are disposed in the casing 400.

  The flow path 110 is a flow path for guiding water supplied from a water supply source (not shown) such as a water supply tank or a water storage tank to the spray device 481, the nozzle 473, and the like. A solenoid valve 431 is provided upstream of the flow passage 110. The solenoid valve 431 is an openable / closable solenoid valve, and controls the supply of water based on a command from the control device 405 provided inside the casing 400.

  On the flow path 110, on the downstream side of the solenoid valve 431, a sterilizer 450 for producing sterilizing water is provided. The sterilization apparatus 450 produces, for example, sterilization water containing hypochlorous acid and the like. Examples of the sterilization apparatus 450 include an electrolytic cell unit. The electrolytic cell unit electrolyzes the tap water flowing in the space (flow path) between the anode plate (not shown) and the cathode plate (not shown) by controlling the energization from the controller 405. In addition, disinfecting water is not limited to what contains hypochlorous acid. For example, the disinfecting water may be a solution containing metal ions such as silver ions or copper ions, a solution containing electrolytic chlorine or ozone, acidic water, alkaline water or the like. The sterilization apparatus 450 is not limited to the electrolytic cell, and may have any configuration capable of generating sterilization water.

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

  The nozzle 473 receives driving force from the nozzle motor 476 and advances or retracts into the bowl portion 801 of the toilet 800. That is, the nozzle motor 476 advances and retracts the nozzle 473 based on a command from the control device 405. The nozzle 473 is housed in the casing 400 when not in use. The nozzle 473 discharges water from the water discharge port 474 in a state of advancing forward from the casing 400 to clean the local human body.

  The nozzle cleaning chamber 478 cleans the outer peripheral surface (body) of the nozzle 473 by injecting sterile water or tap water from a water discharge port provided in the nozzle cleaning chamber 478.

  The spray device 481 mists the tap water or the disinfected water generated by the disinfecting device 450. The spray device 481 sprays a mist M (a mist of disinfected water or a mist of tap water) on the bowl portion 801, the rim portion 805, and the toilet seat portion 200. In other words, the spray device 481 causes the mist of sterilized water or the mist of tap water to reach the bowl portion 801, the rim portion 805, and the toilet seat portion 200. In the specification of the present application, "landing" means that water (sterilized water or tap water) adheres to the surface of an object. In particular, in the case of "direct landing", it means that water (microparticles p of sterilized water or tap water) arrives from the air on the surface of the object.

Further, inside the casing 400, a toilet seat motor 511 (rotating device), a toilet lid motor 512 (rotating device), a blower 513 and a hot air heater 514 are provided.
The toilet seat motor 511 electrically opens and closes the toilet seat 200 based on a command from the control device 405. The toilet lid motor 512 electrically opens and closes the toilet lid 300 based on a command from the control device 405.

  The blower 513 is, for example, a fan provided inside the casing 400. The blower 513 operates based on a command from the controller 405. For example, the blades rotate as the motor of the blower 513 rotates. Thus, the blower 513 can blow air toward the inside of the toilet bowl 800 (for example, inside the bowl portion 801). In addition, the blower 513 may blow the local area of the user sitting on the toilet seat 200. The hot air heater 514 warms the air sent to the outside of the casing 400 by the blower 513. Thereby, the warm air can be sent to the local area of the user to dry the local area.

  The toilet seat heater 515 (drying device) is provided, for example, inside the toilet seat 200. The toilet seat heater 515 has, for example, an annular metal member provided along the periphery of an opening 200 a formed at the center of the toilet seat 200. The toilet seat heater 515 heats the toilet seat 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. Moreover, the shape of a metal member can employ | adopt various shapes, such as a sheet form, a wire form, and mesh shape.

  The control device 405 uses a circuit supplied with power from a power supply circuit (not shown). For example, the control device 405 includes an integrated circuit such as a microcomputer. The control device 405 detects the user based on detection information of the detection sensor 402 (for example, the human body detection sensor 403 or the seating detection sensor 404) or the operation information of the manual operation unit 500. The switching valve 472, the nozzle motor 476, 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 the sterilized water, for example, at an arbitrary timing. For example, the manual operation unit 500 is a remote control having a switch, a button, and the like, and when the user operates the manual operation unit 500, operation information (a signal) instructing spraying of the disinfected 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 disinfected water by operating the manual operation unit 500.
In addition, the manual operation unit 500 may have a switch, a button, and the like for the user to operate each function of the toilet seat device 100 as well as the spray of the sterile water. 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 the presence or absence of seating on the toilet seat 200 of the user. The seating detection sensor 404 detects seating and leaving of the user. As the seating detection sensor 404, a microwave sensor, a distance measurement sensor (infrared projection sensor), an ultrasonic sensor, a tact switch, a capacitance switch (touch sensor), or a strain sensor can be used. In this example, a distance measurement sensor provided in the casing 400 is used as the seating detection sensor 404.

  In addition, when using contact type sensors, such as a tact switch, an electrostatic sensor, and a distortion sensor, these contact type sensors are provided in the toilet seat part 200. FIG. When the user sits on the toilet seat 200, the tact switch is pressed by the weight of the user. Or, the user touches the electrostatic sensor. Alternatively, pressure is applied to the strain sensor by the weight of the user. Electrical signals from these sensors can detect the seating of the user.

  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 in a position spaced forward from the toilet seat 200. That is, the human body detection sensor 403 can detect the user who has entered the toilet room and has approached the toilet seat 200. As such a human body detection sensor, for example, a pyroelectric sensor, a microwave sensor, an ultrasonic sensor, or a distance measurement sensor (infrared light projection type sensor) can be used. In this example, a pyroelectric sensor provided in a casing is used as the human body detection sensor 403. In addition, the human body detection sensor 403 detects the user immediately after entering the toilet room door and the user immediately before entering the toilet room, that is, the user who exists in front of the door trying to enter the toilet room You may For example, when a microwave sensor is used, it becomes possible to detect the presence of a user over the door of the toilet room.

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

The control device 405 can execute three types of mist modes, an after-mist mode, a pre-mist mode, and a manual mist mode.
The after-mist mode is, for example, an operation mode in which the mist of the bacteriostatic water is automatically sprayed based on the detection information of the detection sensor 402 after the use of the toilet apparatus 10 of the user. The pre-mist mode is, for example, an operation mode in which mist of disinfected water or tap water is automatically sprayed based on detection information of the detection sensor 402 before use of the toilet apparatus 10 of the user. The manual mist mode is an operation mode in which mist of disinfected water is sprayed based on operation information of the manual operation unit 500.

FIG. 4A to FIG. 4E are a plan view and a perspective view illustrating the toilet apparatus according to the embodiment.
FIG. 4A shows a part of the toilet apparatus 10 as viewed from the front.
As shown in FIG. 4A, the spray device 481, the nozzle damper 479, and the air flow damper 516 are located at the upper rear of the bowl portion 801 when the toilet seat device 100 is installed at the upper portion of the toilet bowl 800.

FIG. 4B is an enlarged view of a part of FIG. 4A. In addition, in FIG.4 (b), a part of casing 400 located ahead of the spraying apparatus 481 is abbreviate | omitted for legibility.
The nozzle damper 479 is pivotally supported with respect to the casing 400. The nozzle 473 is located rearward of the nozzle damper 479 in a state of being retracted inside the casing 400. At the time of cleaning or the like of the human body part, the nozzle 473 abuts on the nozzle damper 479, and the nozzle damper 479 is rotated and opened, and advances from the inside of the casing 400.

FIG.4 (c)-FIG.4 (e) are perspective views which expand and represent the periphery of the spraying apparatus 481, the nozzle damper 479, and the ventilation damper 516. As shown in FIG.
The blower damper 516 is pivotally supported by the casing 400. 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 800 through the opening 516a.

FIG. 4C shows a state in which the air blower 513 has stopped its operation, and FIG. 4D and FIG. 4E show that the air blower 513 is activated to blow air into the bowl portion 801. Indicates the status.
As shown in FIG. 4C, in the state where the air flow is stopped, the air flow damper 516 is closed.
As shown in FIG. 4D, when the blower 513 operates, the blower damper 516 is pivoted open by the pressure (air pressure) of the air sent from the blower 513. Thereby, the blower 513 blows air from the rear upper portion in the bowl portion 801 toward the lower front portion in the bowl portion 801 as indicated by an arrow A1, for example.
In the state of FIG. 4 (e), the air volume sent by the blower 513 is larger (or the wind speed is higher) than in the state of FIG. 4 (d). In this case, the blower damper 516 further pivots and opens as compared with the state shown in FIG. Thereby, the blower 513 blows air from the rear upper portion in the bowl portion 801 toward the front upper portion in the bowl portion 801 as indicated by an arrow A2, for example.

  Thus, the direction of the air sent from the blower 513 is changed by the blower damper 516. In other words, the blower 513 can control the blowing direction according to the air volume (air velocity). When the mist sprayed from the spray device 481 is placed on the air flow generated by the wind from the blower 513, the range in which the mist lands, and the amount of mist deposition in each range (sterilized water deposited in each range Alternatively, the amount of tap water may be controlled.

  Fig.5 (a)-FIG.5 (c) are perspective views which illustrate another toilet apparatus which concerns on embodiment. In this example, a mist damper 482 is provided in front of the spray device 481. The mist damper 482 covers at least a portion of the front of the spray device 481 in the closed state. For example, in the closed state, the mist damper 482 covers the front of the disk 481 b described later with reference to FIG.

  The mist damper 482 is fixed to, for example, the nozzle damper 479, and interlocks with the nozzle damper 479. Opening the nozzle damper 479 also opens the mist damper 482, and closing the nozzle damper 479 also closes the mist damper 482.

  FIG. 5B and FIG. 5C show the periphery of the nozzle damper 479 and the mist damper 482 in an enlarged manner. FIG. 5B shows a state in which 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. In addition, the mist damper 482 is in a closed state and covers the front of at least a part of the spray device 481.

  When the spray device 481 is not in use, as shown in FIG. 5B, the mist damper 482 hides the spray device 481 from the bowl portion 801 side. Accordingly, it is possible to prevent urine and dirt from adhering to the spray device 481.

  In FIG. 5C, the nozzle 473 advances forward, and the nozzle damper 479 is rotated. The forward advancement distance of the nozzle 473 at this time may be shorter than the forward advancement distance at the time of human body part washing. For example, the tip of the nozzle 473 is in contact with the nozzle damper 479. Further, in FIG. 5C, the mist damper 482 is rotated together with the nozzle damper 479 and is open. A part (disk 481 b) of the spray device 481 is exposed to the bowl portion 801 side. Thereby, the spray device 481 can spray mist toward the bowl portion 801. For example, as described later with reference to FIG. 22, the spray device 481 may be disposed in the casing 400 without providing the mist damper 482.

FIG. 6A to FIG. 6C are schematic views illustrating the spray device according to the embodiment.
FIG. 6 (a) is a perspective view of the spray device 481, and FIG. 6 (b) is a side view of the spray device 481.
The spray device 481 has a motor 481a and a disk 481b connected to the lower side of the motor 481a. The rotation of the motor 481a is controlled by the controller 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 disinfected water generated by the disinfecting device 450) is supplied to the upper surface of the disc 481b. The water W is supplied while the disk 481 b is rotating, and the spray device 481 sprays the water W in the form of a mist. In this example, the disc 481 b is a flat disc shape, but may be provided with asperities as appropriate, or a conical shape or a sphere may be used.

  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 481 b spreads like a film on the disk 481 b by centrifugal force and is emitted from the disk 481 b. At this time, the water W splits in the form of a film from near the edge of the disc 481 b or splits after becoming thread-like, and then becomes fine particles p (mist). The particle diameter of the mist (the diameter of the particle p) can be controlled by the rotational speed of the disk 481 b, that is, the rotational speed of the motor 481 a. The higher the rotational speed, the smaller the particle size of the mist. For example, a desired particle size can be obtained by appropriately using a low speed rotation of about 1000 (rotation per minute: rpm), a medium speed rotation of about 10000 rpm, or a high speed rotation of about 20000 rpm. . Moreover, the particle diameter of mist can also be controlled by adjusting the flow volume of the water W supplied to the spraying apparatus 481 from the water supply port 481c.

  In the specification of the present application, the particle size refers to the particle size of the particles p present in the air before landing on the toilet apparatus 10, and is, for example, the Sauter average particle size (total volume / total surface area). The method of measuring the “particle size” in the present specification will be described later with reference to FIG. Moreover, a mist means the particle size of 10 micrometers (micrometer)-the range of 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 site such as the bowl portion 801, the rim portion 805, and the toilet seat portion 200. Moreover, when the disinfecting water containing hypochlorous acid is used, if the particle size of the mist is less than 10 μm, the concentration of hypochlorous acid in the mist is likely to be attenuated, and the disinfecting performance is likely to be deteriorated. On the other hand, when the particle size of the mist is larger than 300 μm, the mist does not easily diffuse, and it becomes difficult to spray the mist over a wide range. In the following description, the large particle size mist is a mist having a particle size of 100 μm to 300 μm, preferably 150 μm to 300 μm, and the medium particle size mist has a particle size of 50 μm to 200 μm. The mist is preferably in the range of 60 μm to 150 μm, and the small particle diameter mist is mist in the range of 10 μm to 100 μm, preferably 10 μm to 60 μm.

Drawing 7 (a) and Drawing 7 (b) are top views which illustrate the disk of the spraying device concerning an embodiment.
FIGS. 7A and 7B show the rotating disc 481b as viewed from above. In the example of FIG. 7A, the number of the water supply ports 481c for supplying the water W onto the disc 481b is one. In this case, in a region near the water supply port 481c, the water W is radiated from the disk 481b before the water film of the supplied water W becomes thin on the disk 481b. For this reason, as shown to Fig.7 (a), in the circumference | surroundings of the spraying apparatus 481, a deviation arises in the particle size of mist. That is, a region R1 in which the particle diameter of the mist is relatively large, a region R2 in which the particle diameter of the mist is medium, and a region R3 in which the particle diameter of the mist is relatively small are generated. In addition, the flow rate (the amount of mist sprayed in a unit time) is also biased depending on the particle size of the mist. That is, in the region R1, the flow rate is high, in the region R2, the flow rate is medium, and in the region R3, the flow rate is small.

  Therefore, for example, the particle size, flow rate, direction, etc. of the mist sprayed from the spray device 481 into the toilet 800 depending on the position of the water supply port 481c and the rotational direction (clockwise or counterclockwise) of the disc 481b. It is possible to adjust Thereby, the range in which the mist sprayed from the spraying device 481 is allowed to land, and the amount of mist landing in each range may be controlled. In addition, a cover or the like for controlling the direction in which the mist is sprayed may be appropriately provided around the disc 481b.

  Further, the number of water supply ports 481 c is not limited to one, and a plurality of water supply ports 481 c may be provided. For example, in FIG. 7 (b), four water supply ports 481 c are provided. The water inlets 481 c are disposed at every 90 ° as viewed from the center of the disc 481 b. By arranging the plurality of water supply ports 481c at substantially equal intervals along the outer periphery of the disk in this manner, it is possible to suppress the deviation of the particle size and the flow rate of the mist and perform uniform spraying around the spray device 481.

  The spray device 481 is disposed below the toilet seat portion 200 (see FIG. 2) with the toilet seat device 100 installed above the toilet bowl 800 and sprays mist toward the inside of the toilet bowl 800. Here, the state where the spray device 481 is disposed below the toilet seat portion 200 means that at least a part of the spray device 481 (in this example, the disk 481 b) is below the toilet seat portion 200. As a result, the toilet bowl 800 is sprayed with mist of tap water or disinfected water from below the toilet seat 200.

  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 a sprayer. The ultrasonic atomization device converts the liquid into a mist by irradiating the liquid with ultrasonic waves. Also, for example, a two-fluid nozzle may be used as a spray device. The two-fluid nozzle atomizes the liquid by injecting both the gas and the 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 accessory devices such as a compressor are unnecessary.

FIG. 8 is a flowchart illustrating the operation of the toilet seat device according to the embodiment.
FIG. 9A and FIG. 9B are schematic views illustrating the operation of the toilet seat device according to the embodiment.
In FIG.9 (b), the target site | part (P1-P4) which the mist of bacteriostatic water or tap water falls on is shown. FIG. 9A shows the amount of water landing (the amount of water landing per unit area) in each mist mode in four stages of “large”, “medium”, “small”, and “minimum”.

  In the pre-mist mode, after the detection sensor 402 detects the user from the state where the user is not detected, the sterile water or the tap water does not automatically reach the toilet seat 200, so that it is not automatically detected. A mist of disinfected water or a mist of tap water is sprayed into the toilet 800.

  For example, as shown in FIG. 8, 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 Ru. The control device 405 automatically executes the pre-mist mode based on the signal. In the pre-mist mode, the control device 405 causes the spray device 481 to spray the mist of tap water to cause the mist to land on the target site. Target sites in the pre-mist mode are target site P3 (inner wall surface 807 of rim portion 805) and target site P4 (bowl portion 801), as shown in FIGS. 9 (a) and 9 (b). In the pre-mist mode, the upper surface 806 of the toilet seat 200 and the rim 805 is not the target area of the spray.

  Thus, before using the toilet seat device 100, sterile water or tap water is made to fall into the toilet bowl 800 in the pre-mist mode. As a result, a water film can be formed in the toilet 800 having a large load of contamination and a high tolerance to wetting, and the fixation of the contamination can be suppressed. On the other hand, in the upper surface 806 of the toilet seat portion 200 and rim portion 805 where the load of soiling is small, even if the water film is not formed in the pre-mist mode, after application of the toilet seat device 100 Thus, it is possible to suppress the fixation of the filth. Therefore, in the toilet seat device 100, in the pre-mist mode, the disinfected water or the mist of tap water is sprayed into the toilet bowl 800 so as not to reach the toilet seat portion 200. Thus, the user can use the disinfected water or tap water sprayed in the pre-mist mode while suppressing the generation of bacteria and dirt in a wide range such as the toilet 800 and the toilet seat 200 according to the pre-mist mode and the after-mist mode. Can be prevented from getting wet. For example, even if the user turns the toilet seat 200 by hand or sits on the toilet seat 200 immediately after the execution of the pre-mist mode, the user's buttocks and hands may have fallen on the toilet seat. It can prevent touching the water or tap water. That is, the user can immediately use the toilet seat device 100 without getting wet with the mist.

  Furthermore, in the pre-mist mode, a water film can be formed in the toilet 800 in a short time by not causing the mist to reach the toilet seat 200, and the execution time of the pre-mist mode can be shortened. The user who has entered the toilet room can use the toilet seat device 100 without waiting for the end of the pre-mist mode.

  In the pre-mist mode, the range where "stainless water or tap water does not contact the toilet seat" is not limited to the case where all the mist does not contact the toilet seat 200, and a slight mist does not contact the toilet seat 200. It may be included in the case of For example, the amount of tap water or disinfected water that reaches the toilet seat 200 in the pre-mist mode is smaller than the amount of disinfected water that contacts the toilet seat 200 in the after-mist mode or the manual mist mode. However, in the pre-mist mode, the amount of disinfected water or tap water that reaches the toilet seat 200 is preferably as small as possible, for example, preferably zero.

  In the after mist mode, after the detection sensor 402 detects the user, the mist of the disinfected water is automatically sprayed to the inside of the toilet 800 and the toilet seat 200 after the user is not detected.

  For example, as shown in FIG. 8, 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 Ru. The controller 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 the sterilization water, causes the spray device 481 to spray the mist of the sterilization water, and causes the mist to reach the target site. As shown in FIGS. 9A and 9B, the target site in the after mist mode is the target site P1 (surface 203 of the toilet seat 200), the target site P2 (back side 204 of the toilet seat 200, and the rim 805). Upper surface 806), a target site P3 and a target site P4.

  As described above, the execution of the after-mist mode allows the disinfected water to be automatically applied to the inside of the toilet 800 and the toilet seat 200 after the user's toilet seat device 100 is used. Thereby, the generation of bacteria and stains can be automatically suppressed in a wide range such as the toilet seat 800 as well as the toilet bowl 800.

  In addition, since the after-mist mode is executed after the user's use of the toilet seat device 100, it is easy to secure a long non-use time as compared to before use. Therefore, even if the upper surface 806 of the toilet seat 200 or the rim 805 gets wet in the after mist mode, the upper surface 806 of the toilet seat 200 or the rim 805 tends to dry before the next use.

  In the manual mist mode, after the user operates the manual operation unit 500, mist of sterilized water is sprayed into the toilet 800 and the toilet seat 200.

  For example, as shown in FIG. 8, when the user operates the manual operation unit 500 while entering the toilet (for example, after execution of the pre-mist mode), a signal (operation information) corresponding to the operation is transmitted to the control device 405 Be done. The controller 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 cleaning of the toilet seat device 100. In the manual mist mode, the control device 405 causes the sterilization device 450 to generate sterilization water, causes the spray device 481 to spray the mist of the sterilization water, and causes the mist to reach the target site. The target site in the manual mist mode is, as shown in FIGS. 9A and 9B, a target site P1, a target site P2, a target site P3, and a target site P4.

As described above, by causing the inside of the toilet bowl 800 and the toilet seat 200 to receive the disinfected water in the manual mist mode, the generation of bacteria and dirt can be further suppressed. For example, the bacteria can be disinfected by wiping the disinfected water that has been received with water using a toilet paper or the like with respect to sticking stains that are difficult to suppress in the after mist mode. The user can easily wipe off and disinfect without using a dedicated disinfecting paper.
Also, for example, a user who is concerned about dirt on the toilet seat 200 before using the toilet seat device 100 can disinfect the toilet seat 200 in the manual mist mode. Since sterilization is performed based on the user's own operation, the sense of security and satisfaction of the user can be enhanced.

  As shown in FIG. 8, the control device 405 does not detect the user from the state in which the detection sensor detects the user after executing the manual mist mode in the state in which the detection sensor detects the user. Even in the state, the after mist mode is executed. As a result, even if the manual mist mode is performed before the user's use of the toilet seat device 100 (defecation and urination), the after mist mode is performed to more reliably suppress the generation of bacteria and dirt. can do.

  However, if the user leaves the toilet room immediately after the end of the manual mist mode, there is a possibility that the bactericidal water deposited on the upper surface 806 of the toilet seat 200 or the rim 805 may not be wiped off. For example, as shown in FIG. 8, when the manual mist mode is executed after use of the toilet seat device 100 and the detection sensor does not detect the user within the first predetermined time T1 from the end of the manual mist mode, The disinfected water may remain on the upper surface 806 of the toilet seat 200 or the rim 805.

  Therefore, the control device 405 executes the after mist mode when the detection sensor does not detect the user within the first predetermined time T1 after the end of the manual mist mode. You do not have to. Alternatively, the control device 405 may control the amount of disinfected water sprayed by the spray device 481 in the after mist mode from the state where the detection sensor detects the user after the elapse of the first predetermined time T1 from the end of the manual mist mode. The number may be smaller than in the case where the user is not detected. As a result, the upper surface 806 of the toilet seat 200 and the rim 805 becomes too wet due to the after mist mode, and it is possible to prevent the disinfected water from dripping out of the toilet bowl. The first predetermined time T1 is, for example, about 10 seconds to 30 seconds. However, the first predetermined time T1 is not limited to this, and can be set as appropriate.

  In addition, immediately after the end of the after-mist mode, if the next user enters the toilet room, there is a possibility that the toilet seat 200 and the upper surface 806 of the rim 805 are wet with the disinfecting water. For example, when the next user enters the toilet room and operates the manual operation unit 500 within the second predetermined time T2 from the end of the after-mist mode, the upper surface 806 of the toilet seat 200 or the rim 805 is There is a possibility that disinfectant water still remains.

  Therefore, when the manual operation unit 500 is operated within the second predetermined time T2 after the end of the after-mist mode, the control device 405 may not execute the manual mist mode. Alternatively, the control device 405 compares the amount of disinfected water sprayed by the spray device 481 in the manual mist mode as compared with the case where the manual operation unit 500 is operated after the second predetermined time T2 has elapsed from the end of the after mist mode. It may be less. Thereby, the upper surface 806 of the toilet seat 200 and the rim 805 becomes too wet in the manual mist mode, and it is possible to prevent the disinfected water from dripping out of the toilet bowl. The second predetermined time T2 is, for example, about 10 seconds to 30 seconds. However, the second predetermined time T2 is not limited to this, and can be set as appropriate.

  Further, the control device 405 controls the amount of water per unit area of the bactericidal water to be applied to the toilet seat 200 in the manual mist mode (average amount of water applied) in the bactericidal water to be applied to the toilet seat 200 in the after mist mode. The spray device is controlled so as to be larger than the amount of water (average amount of water received) of sterile water per unit area. For example, as shown to Fig.9 (a), the quantity of the disinfecting water per unit area which lands in the object site | part P1 and the object site | part P2 in manual mist mode is "small." In the after-mist mode, the amount of bactericidal water per unit area landing on the target site P1 is "minimal", and the amount of bactericidal water per unit area landing on the target site P2 is Small.

  As described above, since the amount of the disinfecting water to be applied to the toilet seat 200 in the after mist mode is relatively small, the toilet seat 200 can be dried in a short time after the after mist. Thereby, even when the user uses the toilet seat apparatus 100 after after-mist, it is possible to prevent the disinfected water from touching the user's hand or buttocks. In addition, since the amount of disinfecting water that reaches the toilet seat 200 in the manual mist mode is relatively large, the disinfecting water can be firmly infiltrated into the toilet paper or the like. As a result, the sterilization performance by wiping can be improved, and damage to the resin seat portion 200 can be suppressed at the time of wiping. Therefore, the drying performance in the after mist mode and the wiping performance in the manual mist mode can be compatible.

  Moreover, as shown to Fig.9 (a), the quantity of the disinfecting water per unit area which water-contacts the object site | part P3 and the object site | part P4 in a manual mist mode and an after-mist mode is "large." On the other hand, in the pre-mist mode, the amount of disinfected water per unit area to reach the target site P3 and the target site P4 is "medium". By using a large amount of disinfected water in the toilet bowl 800 after use of the toilet seat device 100, the generation of bacteria and dirt can be further suppressed.

  Also, for example, the control device 405 causes the particle diameter of the mist of the disinfected water sprayed in the after-mist mode to be smaller than the particle diameter of the mist of tap water (or disinfected water) sprayed in the pre-mist mode Control the sprayer. In addition, the control device 405 performs spraying so that the particle diameter of the mist of the bactericidal water sprayed in the manual mist mode is smaller than the particle diameter of the mist of tap water (or bactericidal water) sprayed in the premist mode. Control the device.

  As described above, in the after-mist mode and the manual mist mode, by reducing the particle size of the mist, the mist of the bacteriostatic water can be easily diffused in a wide range. Thereby, bacteria and dirt can be suppressed in a wide range such as the rim portion 805 and the toilet seat portion 200 as well as the bowl portion 801. In the pre-mist mode, a water film can be formed on the inner wall surface 807 of the bowl portion 801 or the rim portion 805 in a short time by increasing the particle diameter of the mist. Thus, the pre-mist mode can be ended before the user is seated on the toilet seat.

  An example of the operation of the toilet seat device 100 in the after mist mode and the manual mist mode will be described with reference to FIGS. 10 to 12.

FIG. 10 is a schematic view illustrating operations in the after mist mode and the manual mist mode of the toilet seat device according to the embodiment.
In the after mist mode and the manual mist mode, the controller 405 operates the blower 513. Thereby, the blower 513 blows air into the toilet 800 to generate the first upward air flow U1 in the toilet 800. Further, the control device 405 controls the spray device 481 so that the first mist M1 of the bactericidal water and the second mist M2 of the bactericidal water are simultaneously generated in a state where the first ascending air flow U1 is generated. . The first mist M1 is a mist having a small particle diameter. The particle size of the first mist M1 (the diameter of the fine particle p1 of the bacteriostatic water) is a particle size that can rise to the side of the toilet seat 200 by the first ascending air flow U1. The second mist M2 is a mist of medium particle diameter. The particle size of the second mist M2 (the diameter of the fine particle p2 of the sterilized water) is larger than the particle size of the first mist M1. The second mist M2 does not rise to the toilet seat 200 side by the first upward airflow U1. The range in which the second mist M2 does not rise with the first upward air flow U1 may include not only the case where all the second mist M2 does not rise, but also the case where a slight second mist M2 rises. Do. The second mist M2 ascended by the first updraft U1 is preferably as small as possible, for example, preferably zero.

  That is, the first mist M1 sprayed from below the toilet seat 200 rides on the first ascending air flow U1 and rises to the side of the toilet seat 200 and lands on the upper surface 806 of the toilet seat 200 and the rim 805. On the other hand, the second mist M2 sprayed from below the toilet seat 200 does not rise to the side of the toilet seat 200 by the first ascending air flow U1 because the particle diameter is large, and the inner wall surface 807 of the bowl 801 and the rim 805 Land the water. As a result, it is possible to cause the mist of the disinfecting water to be applied to not only the bowl portion 801 of the toilet bowl 800 but also the upper surface 806 of the rim portion 805 and the toilet seat portion 200 with a single spray device 481. Therefore, bacteria and stains can be suppressed in a wide range such as the rim portion 805 and the toilet seat portion 200 as well as the bowl portion 801 of the toilet bowl 800. Moreover, the toilet seat device 100 can be miniaturized by using a single spray device 481.

  Furthermore, by simultaneously generating the first mist M1 having a small particle diameter that can be raised by the first rising air flow U1 and the second mist M2 having a particle diameter that does not increase due to the first rising air flow U1, It is possible to arbitrarily control the amount of germinated water, the amount of germinated water in the upper surface 806 of the rim portion 805, and the amount of germinated water in the toilet seat 200.

  Further, the control device 405 controls the spray device 481 so that the total amount (g) of the first mist M1 is smaller than the total amount (g) of the second mist M2 in the after mist mode and the manual mist mode. As a result, the amount of bactericidal water landing on the upper surface 806 of the toilet seat portion 200 and the rim portion 805 is relatively small, and the amount of bactericidal water landing on the inner wall surface 807 of the bowl portion 801 and the rim portion 805 is It will be relatively large. By causing a large amount of disinfected water mist to be applied to the bowl portion 801 and the inner wall surface 807 having a large dirt load and a high tolerance to wetting, the generation of bacteria and dirt can be suppressed. In the upper surface 806 of the toilet seat portion 200 and rim portion 805 where the load of soiling is small and the tolerance to wetting is low, the amount of water for disinfecting water is reduced, thereby suppressing bacteria and soiling, and the toilet seat 200 and the toilet seat 200 in a short time. The top surface 806 of the rim 805 can be dried. This can prevent the germicidal water from touching the user's skin or dripping out of the toilet bowl.

  The total amount of mist is the total amount of mist sprayed by the spray device 481 in one mist mode (one after mist mode or one manual mist mode). In the single mist mode, the spray device 481 may spray mist continuously or may spray mist intermittently. The total amount of the first mist M1 and the total amount of the second mist M2 can be controlled, for example, by adjusting the rotational speed of the disk 481b, the flow rate of the disinfected water supplied to the spray device 481, or the like.

  In addition, the spray device 481 sprays sterile water so that the first mist M1 is formed above the second mist M2. More specifically, the spray device 481 sprays the first mist M1 obliquely upward with respect to the horizontal surface. In addition, the spray device 481 sprays the second mist M2 parallel or obliquely downward with respect to the horizontal surface. The direction of the first mist M1 and the direction of the second mist M2 may be divided up and down according to the particle size after spraying.

  Thereby, when the 1st mist M1 of a small particle size raises with the 1st rising air flow U1, it can suppress contacting with the 2nd mist M2. Therefore, the particle diameter of the first mist M1 can be increased by the contact with the second mist M2, and the first mist M1 can be prevented from falling into the toilet 800.

  The spraying device 481 sprays each of the first mist M1 and the second mist M2 radially in top view. In the radial direction, the range in which the mist is present becomes wider as the distance from the spray device 481 increases. For example, in top view, the mist is sprayed in all directions away from the center of the disk 481 b.

  Since the first mist M1 is radial, the first mist M1 can be placed on the entire first rising air flow U1, and can be landed in a wide range such as the upper surface 806 of the toilet seat portion 200 or the rim portion 805. In addition, even if the second mist M2 has a large particle size so that the second mist M2 does not get on the air flow, the inside of the toilet bowl 800 such as the inner wall surface 807 of the bowl portion 801 or the rim portion 805 can be The second mist M2 can be landed on a wide area.

  The formation position and spread of the mists (the first mist M1 and the second mist M2) are adjusted by the rotational speed, the arrangement, the shape of the disc 481b, the position of the water supply port 481c for supplying water to the disc 481b, etc. be able to.

FIG. 11A and FIG. 11B are cross-sectional views illustrating the operation in the after mist mode and the manual mist mode of the toilet seat device according to the embodiment.
FIG.11 (b) is an enlarged view of area | region R4 shown to Fig.11 (a).
The dashed arrows represent the air flow formed by the blower 513. As shown in FIG. 11A, in the after mist mode and the manual mist mode, the blower 513 blows air forward and downward. At least a portion of the air sent from the blower 513 strikes inside the toilet bowl 800 (inside the bowl portion 801 or the inner wall surface 807 of the rim portion 805) and goes upward. As a result, from within the toilet bowl 800 below the toilet seat 200, an upward air flow U1 is formed that rolls up above the toilet seat 200.

  Solid arrows represent the flow of mist sprayed from the spray device 481. The thickness of the solid arrow corresponds to the amount of sterile water. The thicker the arrow, the more bactericidal water is shown. In the after mist mode and the manual mist mode, part of the mist is emitted from the spray device 481 toward the inner wall surface 807 of the rim portion. Further, the mist having a relatively large particle diameter lands on the bowl portion 801. The mist having a relatively small particle size lands on the upper surface 806 of the rim, the toilet seat 200, the toilet lid 300, and the like by the updraft. Thus, it is possible to sterilize every part of the toilet apparatus 10 including the rim 805, the toilet seat 200, the toilet lid 300 and the like.

  In the embodiment, the nozzle 473 is disposed between the spray device 481 and the blower 513 in the width direction (short direction) of the nozzle 473 (see FIG. 4). That is, the spray device 481 is disposed at a position away from the blower 513 in the left-right direction. As a result, before the first mist M1 having a small particle diameter gets on the first upward air flow U1, the air flow blown toward the inside of the toilet 800 from the air blower 513 (air flow before generating the first upward air flow U1 Can prevent the water in the toilet bowl 800 from falling on the

Drawing 12 (a)-Drawing 12 (d) are top views which illustrate operation in after mist mode and manual mist mode of a toilet seat device concerning an embodiment.
12 (a) and 12 (c), the toilet seat 200 and the toilet lid 300 are omitted for convenience of explanation. The dashed arrow indicates the blowing direction of the blower 513. Solid arrows represent the flow of mist sprayed from the spray device 481. The thickness of the solid arrow corresponds to the amount of sterile water. The thicker the arrow, the greater the amount of bacteriostatic water. 12 (b) and 12 (d) show the toilet seat 200. FIG.
12 (a) and 12 (b) show the disc 481b of the spray device 481 in a counterclockwise direction in top view. In this case, as compared to the right side of the toilet apparatus 10, a large amount of bacteriostatic water lands on the left side. For example, as shown in FIG. 12A, on the upper surface of the rim portion, more bactericidal water is deposited on the left side region RL1 than on the right side region RR1. For example, as shown in FIG. 12 (b), in the toilet seat 200, more bacteriostatic water is deposited on the left side region RL2 than on the right side region RR2.

  FIGS. 12 (c) and 12 (d) show the disc 481b of the spray device 481 in a clockwise direction in top view. In this case, as compared to the left side of the toilet apparatus 10, more bacteriostatic water lands on the right side. For example, as shown in FIG. 12C, on the upper surface of the rim portion, more bactericidal water is deposited on the right side region RR1 than on the left side region RL1. For example, as shown in FIG. 12 (d), in the toilet seat 200, more bacteriostatic water lands on the right side region RR2 than on the left side region RL2.

  The control device 405 preferably controls the motor 481a of the spray device 481 to appropriately switch between clockwise and counterclockwise during the after mist mode and the manual mist mode. Thereby, the distribution of the mist in the left-right direction tends to be uniform.

FIG. 13 is a flowchart illustrating an operation in the after mist mode of the toilet seat device according to the embodiment.
When the human body detection sensor 403 detects that the user has left the room (Step S101: Yes), the control device 405 controls the toilet lid motor 512 to close the toilet lid 300, opens the solenoid valve 431, and controls the motor of the spray device 481. The disk 481a and the disk 481b are rotated at high speed counterclockwise (CCW) (step S102). By opening the solenoid valve 431, the water supply to the disk 481b is started.

  The control device 405 maintains the disk 481 b rotating at a high speed for a predetermined time (step S 103: No). Thus, the residual water on the disk 481 b can be discharged from the disk 481 b. At this time, for example, since the mist damper 482 is closed, the mist is not sprayed into the toilet 800.

  When the predetermined time has elapsed (step S103: Yes), the controller 405 causes the nozzle motor 476 to advance the nozzle 473 into the bowl portion 801. Along with this, the mist damper 482 is opened (step S104).

  Thereafter, the control device 405 controls the sterilization device 450 to start generation of the sterilization water, and controls the air blower 513 to start air blowing into the toilet 800 (step S105). As a result, spraying of the disinfected water mist into the toilet bowl 800, the toilet seat 200, the toilet lid 300, etc. starts. The control device 405 maintains the state in which the mist of the bactericidal water is sprayed from the disk 481b rotating at high speed in the counterclockwise direction for a predetermined time (t1) (Step S106: No).

  When the predetermined time (t1) has elapsed (step S106: Yes), the control device 405 rotates the motor 481a and the disk 481b of the spray device 481 at high speed clockwise (CW) (step S107). The control device 405 maintains the state where the mist of the bacteriostatic water is sprayed from the disk 481b rotating at high speed clockwise, for a predetermined time (t1) (No at step S108).

  When the predetermined time (t1) has elapsed (step S108: Yes), the control device 405 controls the blower 513 to stop the blower and controls the sterilization device 450 to stop the generation of the sterilization water, and the motor The disk 481a and the disk 481b are rotated at low speed clockwise (CW) (step S109).

  The control device 405 supplies the tap water to the disk 481b, and maintains the disk 481b rotating at a low speed for a predetermined time (No at step S110). Thereby, the self cleaning of the disc 481 b is performed. The self-cleaning is an operation of physically cleaning the disc at a rotational speed that does not cause mist. Bactericidal water may be used for self cleaning.

  When the predetermined time has elapsed (step S110: Yes), the control device 405 closes the solenoid valve 431 (step S111). The controller 405 stops the water supply to the disk 481b and maintains the disk 481b rotating at a low speed for a predetermined time (No in step S112). Thereby, residual water on the disk 481 b can be removed.

  When the predetermined time has elapsed (step S112: Yes), the control device 405 stops the rotation of the motor 481a and the disc 481b, and causes the nozzle motor 476 to retract the nozzle 473 into the casing 400. Along with this, the mist damper 482 is closed. Further, the control device 405 turns on the toilet seat heater 515 (energized state) (step S113).

  The control device 405 maintains the state where the toilet seat heater 515 is ON for a predetermined time (step S114: No). As a result, the temperature of the toilet seat 200 can be raised to evaporate the sterilized water that has landed on the toilet seat 200, and the toilet seat 200 can be dried. Instead of the toilet seat-heater 515, the air blower 513 and the hot air heater 514 may be driven to dry the toilet seat 200 with the hot air.

  When the predetermined time has elapsed (step S114: Yes), the control device 405 turns the toilet seat heater 515 OFF (non-energized state) (step S115). After the above, the after-mist mode ends.

FIG. 14 is a flowchart illustrating an operation in the manual mist mode of the toilet seat device according to the embodiment.
When the user operates the manual operation unit 500 (step S201: Yes), the control device 405 controls the toilet lid motor 512 to close the toilet lid 300, opens the solenoid valve 431, and the motor 481a of the spray device 481 and The disk 481 b is rotated counterclockwise (CCW) at high speed (step S 202). By opening the solenoid valve 431, the water supply to the disk 481b is started.

  The control device 405 maintains the disk 481 b rotating at a high speed for a predetermined time (step S 203: No). Thus, the residual water on the disk 481 b can be discharged from the disk 481 b. At this time, for example, since the mist damper 482 is closed, the mist is not sprayed into the toilet 800.

  When the predetermined time has elapsed (step S203: Yes), the controller 405 causes the nozzle motor 476 to advance the nozzle 473 into the bowl portion 801. Along with this, the mist damper 482 is opened (step S204).

  Thereafter, the control device 405 controls the sterilization device 450 to start generation of the sterilization water, and controls the blower 513 to start blowing air into the toilet 800 (step S205). As a result, spraying of the disinfected water mist into the toilet bowl 800, the toilet seat 200, the toilet lid 300, etc. starts. The control device 405 maintains the state where the mist of the bactericidal water is sprayed from the disk 481b rotating at high speed in the counterclockwise direction for a predetermined time (t2) (Step S206: No).

  When the predetermined time (t2) has elapsed (step S206: Yes), the control device 405 rotates the motor 481a and the disk 481b of the spray device 481 at high speed clockwise (CW) (step S207). The control device 405 maintains the state in which the mist of the bactericidal water is sprayed from the disk 481b rotating at high speed clockwise, for a predetermined time (t2) (No at step S208).

  When the predetermined time (t2) has elapsed (step S208: Yes), the control device 405 controls the blower 513 to stop the blower and controls the sterilization device 450 to stop the generation of the sterilization water, and the motor The disk 481a and the disk 481b are rotated at low speed clockwise (CW) (step S209).

  The control device 405 supplies the tap water to the disc 481b, and maintains the disc 481b rotating at a low speed for a predetermined time (Step S210: No). Thereby, the self cleaning of the disc 481 b is performed.

  When the predetermined time has elapsed (step S210: Yes), the control device 405 closes the solenoid valve 431 (step S211). The controller 405 stops the water supply to the disk 481b and maintains the disk 481b rotating at a low speed for a predetermined time (No in step S212). Thereby, residual water on the disk 481 b can be removed.

  When the predetermined time has elapsed (step S212: Yes), the controller 405 stops the rotation of the motor 481a and the disc 481b, and causes the nozzle motor 476 to retract the nozzle 473 into the casing 400. Along with this, the mist damper 482 is closed (step S213). Thus, the manual mist mode ends. In addition, after the manual mist mode, the user can disinfect the toilet seat 200 by appropriately wiping the disinfected water that has been deposited on the toilet seat 200 with a toilet paper or the like.

  The control device 405 controls the spray device such that the time for spraying the disinfecting water in the manual mist mode is longer than the time for spraying the disinfecting water in the after-mist mode. For example, the predetermined time (t2) described with reference to FIG. 14 is longer than the predetermined time (t1) described with reference to FIG. As a result, the amount of disinfected water that reaches the toilet seat 200 in the manual mist mode can be made greater than the amount of disinfected water that contacts the toilet seat 200 in the after-mist mode. Thereby, in the manual mist mode, the disinfecting water can be firmly infiltrated into the toilet paper etc., and the disinfecting performance can be improved. Moreover, it can suppress that resin toilet seat part 200 is damaged at the time of wiping off.

  For example, a method is also conceivable in which the landing amount of sterile water is changed by changing the particle size of the mist of the sterile water without changing the time for spraying the sterile water. For example, by increasing the particle size, it is possible to increase the amount of disinfected water to be received. However, if the particle size is increased, there is a risk that the bacteriostatic water will be less likely to ride on the rising air flow. On the other hand, it is possible to increase the amount of disinfected water to be applied to the toilet seat 200 without changing the particle size by changing the spraying time of the disinfected water. For this reason, the mist of bactericidal water can be easily put on the ascending air flow, and the bactericidal water can be diffused in a wide range of the toilet seat 200.

Further, the control device 405 operates the drying device for drying the toilet seat 200 with the first drying power during or after the execution of the after-mist mode. For example, in FIG. 13, the control device 405 operates the toilet seat heater 515 with the first heating amount (first power (watt)) in steps S113 and S114.
On the other hand, during or after the manual mist mode, the controller 405 does not operate the dryer, or operates with a second drying force smaller than the first drying force. For example, in FIG. 14, the control device 405 does not operate the toilet seat heater 515. Alternatively, the control device 405 may operate the toilet seat heater 515 with a second heating amount (second power (watt)) smaller than the first heating amount. For example, due to the toilet seat heater 515, the temperature of the seat during or after the after-mist mode is higher than the temperature of the seat during or after the manual mist mode.

  Thus, during or after the execution of the after-mist mode, the disinfecting water deposited on the toilet seat 200 by drying the toilet seat 200 with a relatively large first drying power (for example, the first power). Drying time can be shortened. On the other hand, during or after the execution of the manual mist mode, the drying device does not operate, or the toilet seat 200 is wetted by drying the toilet seat 200 with a relatively small second drying power (for example, the second power) The drying time of the disinfecting water can be extended. Thereby, it is possible to prevent the toilet seat 200 from being dried before wiping the disinfected water that has landed on the toilet seat 200 with the toilet paper.

An example of the operation of the toilet seat device 100 in the pre-mist mode will be described with reference to FIGS.
FIG. 15 is a schematic view illustrating the operation in the pre-mist mode of the toilet seat device according to the embodiment.
In the pre-mist mode, the control device 405 operates the spray device 481 to generate a mist M3 (a mist of sterilized water or a mist of tap water). Further, in a state where the mist M3 is sprayed to the spray device 481, the control device 405 controls the blower 513 so as not to raise the mist M3 to the toilet seat 200 side without generating the first ascending air flow U1. As described above, the first ascending air flow U1 is an air flow generated by the air blower 513, and is an air flow capable of raising the mist of the bactericidal water to the toilet seat 200 side in the after mist mode and the manual mist mode It is.

In the pre-mist mode, the mist sprayed from below the toilet seat 200 does not rise to the side of the toilet seat 200, and contacts the bowl surface 801 of the toilet 800 and the inner wall surface 807 of the rim 805. A water film is formed on the bowl portion 801 and the inner wall surface 807, which makes it difficult for dirt to adhere. Further, as the mist does not rise to the toilet seat 200 side, wetting of the upper surface 806 of the toilet seat 200 and the rim 805 in the pre-mist mode can be suppressed. As a result, when the user is seated immediately after the pre-mist mode or when the toilet seat 200 is turned by hand, it is possible to prevent the user's hands and buttocks from getting wet.
On the other hand, in the after mist mode and the manual mist mode, the control device 405 operates the blower 513 to raise the mist of the disinfected water to the toilet seat 200 side by the first ascending air flow U1.

  That is, the control device 405 can switch between the case where the mist sprayed from below the toilet seat 200 is carried on the ascending air flow and the water is allowed to contact the toilet seat 200 and the case where the mist is not carried on the rising air. Thus, the single spray device 481 causes the mist of sterilized water to be applied to the inside of the toilet 800 and the toilet seat 200 in the after mist mode and the manual mist mode, and does not wet the toilet seat 200 in the pre-mist mode The mist can be made to land in the toilet 800.

  In the pre-mist mode, the range “does not raise the mist of bactericidal water or the mist of tap water to the toilet seat side” may include not only the rise of all the mist but also the rise of a slight mist. It shall be. For example, the amount of mist rising to the toilet seat side in the pre-mist mode is smaller than the amount of mist rising to the toilet seat side in the after-mist mode or the manual mist mode.

  For example, in the pre-mist mode, the control device 405 stops the operation of the blower 513 and does not perform the blower. Thereby, the mist can be more reliably prevented from rising to the toilet seat 200 side.

  In addition, in the pre-mist mode, the control device 405 may operate the blower 513 to generate the second updraft U2. The flow velocity of the second updraft U2 is lower than the flow velocity of the first updraft U1, and the mist M3 does not rise to the toilet seat 200 side by the second updraft U2. The second updraft U2 can diffuse the mist horizontally or downward without raising the mist to the toilet seat 200 side. Thereby, disinfected water can be made to reach the wider range in the toilet bowl 800.

  Further, also in the pre-mist mode, the spray device 481 radially sprays mist of disinfected water or mist of tap water in top view. Thereby, even when the mist does not get on the rising air flow in the pre-mist mode, the mist can be made to land on a wide range such as the inner wall surface 807 of the bowl portion 801 or the rim portion 805.

  The mist M3 is, for example, a mist having a medium particle diameter or a large particle diameter. The particle size of the mist M3 (diameter of the particle p3 of the sterilized water or tap water) is, for example, larger than the particle size of the first mist M1 and the particle size of the second mist M2 in the manual mist mode and the after mist mode Good. Thereby, the mist M3 may not rise to the toilet seat 200 side.

16 (a) to 16 (c) are a cross-sectional view and a plan view illustrating the operation in the pre-mist mode of the toilet seat device according to the embodiment.
FIGS. 16A to 16C illustrate a state in which the motor 481a of the spray device 481 rotates at a medium speed. At this time, the mist sprayed by the spray device 481 is a mist having a medium particle diameter. Moreover, in Fig.16 (a)-FIG.16 (c), the arrow of a continuous line represents the flow of the mist sprayed from the spraying apparatus 481. As shown in FIG. The thickness of the solid arrow corresponds to the amount of sterile water. The thicker the arrow, the greater the amount of bacteriostatic water. In addition, in FIG.16 (b) and FIG.16 (c), the toilet seat part 200 is abbreviate | omitted for convenience of explanation.

  As shown in the cross-sectional view of FIG. 16A, the spray device 481 sprays mist toward the upper end of the rim portion 805. When the motor 481a rotates at a medium speed, the outer region RS of the toilet 800 (the outer portion 801S in the bowl portion 801 and the rim portion compared to the inner region RU of the toilet 800 (the inner portion 801U of the bowl portion 801). A large amount of disinfected water or tap water falls on the inner wall surface 807) of 805.

  The plan view of FIG. 16B shows the disc 481b of the spray device 481 in a counterclockwise direction in top view. In this case, as compared with the right side in the toilet bowl 800, more sterile water or tap water lands on the left side.

  The plan view of FIG. 16C shows a state where the disc 481 b of the spray device 481 is rotating clockwise in top view. In this case, as compared with the left side in the toilet bowl 800, more sterile water or tap water lands on the right side.

FIG. 17A to FIG. 17C are a cross-sectional view and a plan view illustrating an operation in the pre-mist mode of the toilet seat device according to the embodiment.
FIGS. 17A to 17C illustrate a state where the motor 481a of the spray device 481 is rotating at a low speed. At this time, the mist sprayed by the spray device 481 is a mist having a large particle diameter. Moreover, in FIG.17 (a)-FIG.17 (c), the arrow of a continuous line represents the flow of the mist sprayed from the spraying apparatus 481. As shown in FIG. The thickness of the solid arrow corresponds to the amount of sterile water. The thicker the arrow, the greater the amount of bacteriostatic water. In addition, in FIG.17 (b) and FIG.17 (c), the toilet seat part 200 is abbreviate | omitted for convenience of explanation.

  When the motor 481a is rotating at a low speed, the particle diameter of the mist is larger and the centrifugal force is smaller as compared with the case where the motor is rotating at a medium speed, so the mist flying distance becomes short. As shown in the cross-sectional view of FIG. 17 (a), when the motor 481a is rotating at a low speed, more disinfecting water or tap water is present in the inner region RU of the toilet 800 as compared to the outer region RS of the toilet 800. Lands in the water.

  The plan view of FIG. 17B shows a state where the disc 481 b of the spray device 481 is rotating clockwise in top view. In this case, as compared with the left side in the toilet bowl 800, more sterile water or tap water lands on the right side.

  The plan view of FIG. 17C shows the disc 481b of the spray device 481 in a counterclockwise direction in top view. In this case, as compared with the right side in the toilet bowl 800, more sterile water or tap water lands on the left side.

  The control device 405 controls the motor 481 a of the spray device 481 to appropriately switch between low speed rotation and medium speed rotation during the pre-mist mode. Thereby, the mist of disinfected water or tap water can be made to reach every corner of the toilet 800.

  The control device 405 preferably controls the motor 481a of the spray device 481 to appropriately switch between clockwise and counterclockwise during the premist mode (during low speed rotation and medium speed rotation). Thereby, the distribution of the mist in the left-right direction tends to be uniform.

FIG. 18 is a flowchart illustrating an operation in the after mist mode of the toilet seat device according to the embodiment.
When the human body detection sensor 403 detects the user's entry into the room (step S301: Yes), the control device 405 controls the toilet lid motor 512 to open the toilet lid 300 and opens the solenoid valve 431, and the motor of the spray device 481 The medium 481 rotates the medium 481a and the disk 481b counterclockwise (CCW) (step S302). By opening the solenoid valve 431, the water supply to the disk 481b is started.

  The control device 405 maintains a state where the disk 481 b rotates at a medium speed for a predetermined time (step S 303: No). Thus, the residual water on the disk 481 b can be discharged from the disk 481 b. At this time, for example, since the mist damper 482 is closed, the mist is not sprayed into the toilet 800.

  When the predetermined time has elapsed (step S303: Yes), the controller 405 causes the nozzle motor 476 to advance the nozzle 473 into the bowl portion 801. Along with this, the mist damper 482 is opened (step S304). As a result, spraying of tap water mist into the toilet bowl 800 starts. The control device 405 maintains the state in which the mist of tap water is sprayed from the disk 481 b rotating in the counterclockwise direction at a medium speed for a predetermined time (Step S 305: No).

  When the predetermined time has elapsed (step S305: Yes), the control device 405 rotates the motor 481a and the disk 481b of the spray device 481 in the clockwise (CW) direction (step S306). The control device 405 maintains the state in which the mist of tap water is sprayed from the disk 481b which rotates in the clockwise direction at a medium speed for a predetermined time (Step S307: No).

  When the predetermined time has passed (step S307: Yes), the control device 405 rotates the motor 481a and the disc 481b of the spray device 481 at low speed clockwise (CW) (step S308). The control device 405 maintains the state in which the mist of tap water is sprayed from the disk 481b rotating at low speed in the clockwise direction for a predetermined time (Step S309: No).

  When the predetermined time has passed (step S309: Yes), the control device 405 rotates the motor 481a and the disc 481b of the spray device 481 at low speed in the counterclockwise direction (CCW) (step S310). The control device 405 maintains a state where the mist of tap water is sprayed from the disk 481 b rotating at low speed in the counterclockwise direction for a predetermined time (Step S 311: No).

  When the predetermined time has elapsed (step S311: Yes), the control device 405 closes the solenoid valve 431 (step S312). The controller 405 stops the water supply to the disk 481b and maintains the disk 481b rotating at a low speed for a predetermined time (No in step S313). Thereby, residual water on the disk 481 b can be removed.

  When the predetermined time has elapsed (step S313: Yes), the control device 405 stops the rotation of the motor 481a and the disc 481b, and causes the nozzle motor 476 to retract the nozzle 473 into the casing 400. Along with this, the mist damper 482 is closed (step S314). Thus, the pre-mist mode ends.

  The control device 405 executes the pre-mist mode with the toilet lid 300 opened. That is, in the pre-mist mode, the mist is sprayed in a state in which the toilet lid 300 is open. Thereby, the user can immediately sit on the toilet seat 200 without waiting for the completion of the execution of the pre-mist mode. In the pre-mist mode, the spray device 481 performs spraying so that the mist does not reach the toilet seat 200. Therefore, even if the user is seated on the toilet seat 200 while the pre-mist mode is being executed, use It is unlikely that the person will be misted.

  On the other hand, the control device 405 executes the after-mist mode and the manual mist mode while the toilet lid 300 is closed. That is, in the after mist mode and the manual mist mode, the mist is sprayed in a state in which the toilet lid 300 is closed. This diffuses the mist of the disinfected water while preventing the mist of the disinfected water from scattering out of the toilet bowl, so that bacteria and dirt can be spread over a wide range of the toilet bowl 800, the toilet seat 200 and the toilet lid 300, etc. It can be suppressed.

  In the embodiment, in one mist mode (for example, one after mist mode), the control device 405 transfers the amount of water per unit area of disinfected water in the toilet seat 200 and disinfects the upper surface 806 of the rim 805. The amount of water deposited per unit area of water is smaller than the amount of water deposited per unit area of the disinfected water in the bowl portion 801, and the amount of water deposited per unit area of the disinfected water on the inner wall surface 807 of the rim portion 805 The spray device 481 is controlled to be smaller.

  That is, according to the embodiment, in one mist mode, the control device 405 relatively increases the amount of disinfecting water that contacts the inner wall surface 807 of the bowl portion 801 and the rim portion 805. By causing a large amount of disinfected water mist to be applied to the inner wall surface 807 of the bowl portion 801 and the rim portion 805 having a large dirt load and a high tolerance to wetting, generation of bacteria and dirt can be suppressed.

  Further, according to the embodiment, in one mist mode, the control device 405 relatively reduces the amount of disinfecting water that reaches the upper surface 806 of the toilet seat portion 200 or the rim portion 805. The upper surface 806 of the toilet seat portion 200 and the rim portion 805 has a relatively low dirt load, so that bacteria and dirt can be suppressed by causing a relatively small amount of disinfected water to be deposited.

  In addition, the upper surface 806 of the toilet seat portion 200 or the rim portion 805 can be dried in a short time by reducing the amount of disinfected water to be applied to the upper surface 806 of the toilet seat portion 200 or the rim portion 805 which has low tolerance to wetting. . This can prevent the germicidal water from touching the user's skin or dripping out of the toilet bowl.

  Thus, according to the embodiment, the germicidal water contacts the skin of the user while suppressing bacteria and dirt in a wide range such as the rim portion 805 and the toilet seat portion 200 as well as the bowl portion 801 of the toilet bowl. This can cause discomfort and prevent sterile water from dripping out of the toilet bowl.

  For example, in one mist mode, the control device 405 drops the disinfected water in which the amount of water landing in the toilet seat 200 (the amount of water landing per unit area of the disinfected water in the toilet seat) has fallen to the toilet seat 200 The spray device 481 is controlled so that the amount of landing water does not stagnate. Further, the control device 405 causes the amount of water landing on the upper surface 806 of the rim portion 805 (the amount of water per unit area of disinfected water on the upper surface of the rim portion) to reach the upper surface 806 of the rim portion 805 in one mist mode. The spray device is controlled so that the amount of water in which the disinfected water that has been poured is retained without dripping.

  As described above, in the upper surface 806 of the toilet seat portion 200 and the rim portion 805 where the load of soiling is small, since the bactericidal water is retained without dripping, a long time for the oxidative decomposition and bactericidal action of the bactericidal water is ensured. It is possible to control the occurrence of bacteria and dirt. Further, by setting the amount of landing water on the upper surface 806 of the toilet seat portion 200 and the rim portion 805 to be the amount of landing water where the bactericidal water stagnates, the risk of bactericidal water falling outside the toilet bowl can be reduced.

  Furthermore, in the single mist mode, the control device 405 drops the amount of water deposited in the bowl portion 801 (the amount of water deposited per unit area of the disinfected water in the bowl portion) dropped into the bowl portion 801. The spray device 481 is controlled to achieve the desired amount of water landing. Further, the controller 405 controls the amount of water landing on the inner wall surface 807 of the rim portion 805 (the amount of water landing per unit area of the disinfecting water on the inner wall surface of the rim portion) in one mist mode. The spray device 481 is controlled such that the amount of water to which the disinfected water that has landed on 807 falls is dropped.

  As described above, by dropping sanitizing water on the inner wall surface 807 of the bowl section 801 and the rim section 805 where the soil load is large, not only the oxidative decomposition action and the bleaching action but also the action of washing out the dirt by the sanitizing water It can be used. Thereby, generation | occurence | production of microbes and stain | pollution | contamination can be suppressed more effectively than the case where bacteria removal water is made to retain.

  "Dropping" means that water (for example, sterilized water) attached to the surface of the object flows down. The range of “dropping” includes that a drop of water or a water film flows due to its own weight or vibration due to the operation of the toilet apparatus.

  For example, the control device 405 is configured so that the amount of water in the toilet seat 200 does not drip off the bacteriostatic water that has landed on the toilet seat 200 when the toilet seat 200 is rotated by the toilet seat motor 511 (rotation device). The spray device is controlled to achieve the amount of water retention.

  As a result, even when the toilet seat portion 200 is rotated, the disinfecting water can be prevented from dripping, so that the action time of the oxidative decomposition action and the bleaching action of the disinfecting water can be secured for a long time. It is possible to further suppress the occurrence of dirt and stains. Further, by setting the amount of landing water in the toilet seat 200 to be the amount of landing water where the bactericidal water stays, it is possible to reduce the risk of the bactericidal water dripping on an unintended site.

  The control of the amount of water landing as described above is possible by the control of the particle size of the mist sprayed from the spray device 481. For example, in the control device 405, each of the particle diameter of the mist of the disinfected water sprayed on the toilet seat 200 and the particle diameter of the mist of the disinfected water sprayed on the upper surface 806 of the rim 805 is a bowl 801 The spray device 481 is controlled to be smaller than the particle diameter of the mist of the sterile water to be sprayed and smaller than the particle diameter of the mist of the sterile water to be sprayed on the inner wall surface 807 of the rim portion 805. In addition, the particle size of the mist of the sterilization water sprayed on each site | part is a particle size of the mist which water-drops on each site | part, for example.

  Since the particle diameter of the mist of the disinfecting water to be applied to the upper surface 806 of the toilet seat portion 200 and the rim portion 805 is small, the disinfected water applied to the upper surface of the toilet seat portion and the rim portion can be prevented from dripping. . In addition, because the particle diameter of the mist of the disinfecting water to be applied to the inner wall surface 807 of the bowl portion 801 and the rim portion 805 is large, the disinfected water applied to the inner wall surface 807 of the bowl portion 801 and the rim portion 805 is a liquid It becomes easy to drip and can improve the action of washing away dirt.

A method of measuring the amount of water landing (average amount of water landing) will be described with reference to FIGS. 19 (a) to 19 (e).
FIG. 19A to FIG. 19E are plan views illustrating the toilet apparatus according to the embodiment. 19 (a) and 19 (b) show the surface 203 of the toilet seat 200 and the back surface 204 of the toilet seat 200, respectively. The surface 203 is a seating surface on which the user is seated, and faces upward when the toilet seat 200 is closed. The back surface 204 is a surface opposite to the surface 203, and faces downward when the toilet seat 200 is closed.

As shown in FIG. 19 (a), the surface 203 has a front end area 203F located on the front side when the toilet seat 200 is closed, a side area 203R located on the right side, and a side located on the left side And an area 203L. The area of each region is 20 square centimeters (cm ² ).
Water landing amount per unit area (g / cm ² ) in tip region 203 F, water landing amount per unit area in side region 203 R (g / cm ² ), water landing amount per unit area in side region 203 L (g The average with / cm ² ) is defined as the amount of water landing per unit area on the surface 203 (average amount of water landing (g / cm ² )).

As shown in FIG. 19 (b), the back surface 204 has a front end area 204F located on the front side when the toilet seat 200 is closed, a side area 204R located on the right side, and a side located on the left side Region 204L, and The area of each region is 20 square centimeters (cm ² ).
Water landing amount per unit area (g / cm ² ) in tip region 204F, water landing amount per unit area in side region 204R (g / cm ² ), water landing amount per unit area in side region 204L (g The average with / cm ² ) is the amount of water landing per unit area on the back surface 204 (average water landing amount (g / cm ² )).

The amount of water landing per unit area in the toilet seat 200 (average amount of water landing (g / cm ² )) is the average of the amount of water landing per unit area on the surface 203 and the amount of water landing per unit area on the back surface 204.

As shown in FIG. 19C, the upper surface 806 of the rim portion 805 has a front end area 806F located on the front side, a side area 806R located on the right side, and a side area 806L located on the left side. Have. The area of each region is 20 square centimeters (cm ² ).
Landing amount per unit area in the upper surface 806 of the rim portion 805 (the average wear amount of water (g / ^cm 2)), the landing amount per unit area in the tip region 806F and (g / cm ^2), the unit in the side regions 806R It is an average of the amount of water landing per area (g / cm ² ) and the amount of water landing per unit area (g / cm ² ) in the side area 806L.

As shown in FIG. 19D, the inner wall surface 807 of the rim portion 805 has a front end area 807F located on the front side, a side area 807R located on the right side, and a side area 807L located on the left side. And. The area of each region is 20 square centimeters (cm ² ).
Landing amount per unit area of the inner wall surface 807 of the rim portion 805 (average wear amount of water (g / ^cm 2)), the landing amount per unit area in the tip region 807F (g / cm ^2), in the side regions 807R It is an average of the amount of water landing per unit area (g / cm ² ) and the amount of water landing per unit area (g / cm ² ) in the side area 807L.

As shown in FIG. 19 (e), the bowl portion 801 (a portion of the inner side surface of the bowl portion 801 where the stored water is not provided) has a front end region 801F located on the front side and a side located on the right side It has a region 801R and a side region 801L located on the left side. The area of each region is 20 square centimeters (cm ² ).
Landing amount per unit area of the bowl portion 801 (the average wear amount of water (g / ^cm 2)), the landing amount per unit area in the tip region 801F and (g / cm ^2), per unit area in the side regions 801R It is an average of the amount of water landing (g / cm ² ) and the amount of water landing per unit area (g / cm ² ) in the side area 801L.

The respective regions (203F, 203L, 203R, 204F, 204L, 204R, 806F, 806L, 807F, 807L, 807R, 801F, 801L, and 801R shown in FIGS. 19A to 19E). The measurement of the amount of water landing per unit area in is as follows.
First, after spraying mist, the area of a certain area is wiped off with paper, and the mist that has landed in the area is absorbed by the paper. Next, the difference between the weight of the paper before water absorption and the weight of the paper after water absorption is taken as the amount of the mist that has landed in the region (water landing amount). The amount of landing per unit area in the area is calculated by dividing the amount of landing in water by the area of the area (area wiped off).

FIG. 20 is a table illustrating the amount of mist landing in the after-mist mode.
In FIG. 20, the magnitude relationship of the amount of water landing per unit area in each area shown in FIG. 19A to FIG. 19E is four stages of “large”, “medium”, “small” and “minimal”. Indicated.
For example, the amount of water landing per unit area in the tip area and the side area of the top surface 806 of the rim portion 805 is “medium”. On the other hand, the amount of water landing per unit area in the front end area and the side area of the surface 203 of the toilet seat 200 is “minimal”.

  That is, the control device 405 causes the amount of water per unit area of the disinfected water on the upper surface 806 of the rim 805 to be larger than the amount of water per unit area of the disinfected water on the surface 203 of the toilet seat 200 The spray device 481 is controlled. The amount of disinfecting water applied to the top surface 806 of the rim 805 is low compared to the surface 203 of the toilet seat 200 directly touched by the user, so that the bacteria on the top 806 of the rim 805 is large. It is possible to suppress the occurrence of dust and dirt.

  In addition, when the user urinates while sitting on the toilet seat 200, urine or dirty water that bounces on the bowl portion 801 or the reservoir water 801w easily adheres to the front side of the back surface 204 of the toilet seat 200. For this reason, the front side of the back surface 204 of the toilet seat 200 is a portion where the dirt load is larger than the side of the back surface 204 of the toilet seat 200. On the other hand, as shown in FIG. 20, the amount of water landing per unit area in the front end region of the back surface 204 of the toilet seat 200 is "large", and per unit area in the side region of the back surface 204 of the toilet seat 200. The amount of water landing is "small".

  That is, when the front side from the opening 200 a of the toilet seat 200 is set as the front site, and the side of the opening 200 a is set as the side site, the control device 405 The spray device 481 is used so that the amount of landing per unit area (average landing) is greater than the amount of landing per unit area of disinfecting water (average landing) at the lateral part of the back surface 204 of the toilet seat 200. Control. The generation of bacteria and dirt on the back surface 204 of the toilet seat portion 200 can be further suppressed by increasing the amount of disinfecting water that lands on the front side as compared to the side.

  In addition, since the possibility of the user directly touching the back surface 204 of the toilet seat 200 is lower than that of the front surface 203, the back surface 204 of the toilet seat 200 is a portion with high tolerance to wetting. In addition, urine or dirty water that has splashed on the bowl portion 801 or the stored water 801 w is likely to adhere to the back surface 204 of the toilet seat portion 200. For this reason, the back surface 204 of the toilet seat portion 200 is a portion where the dirt load is larger than the surface 203 of the toilet seat portion 200. On the other hand, as shown in FIG. 20, the controller 405 controls the amount of water per unit area of disinfected water on the back surface 204 of the toilet seat 200 to be equal to the unit area of disinfected water on the surface 203 of the toilet seat 200. The spray device 481 is controlled so as to be larger than the amount of water landing.

  That is, the amount of disinfecting water that reaches the back surface 204 of the toilet seat 200 is larger than that of the surface 203 of the toilet seat 200. By increasing the amount of disinfecting water that reaches the back surface 204 of the toilet seat 200, the generation of bacteria and dirt can be suppressed.

  Further, as shown in FIG. 20, the amount of water landing per unit area in the tip region and the side region of the inner wall surface 807 of the rim portion 805 is “large”, and the unit in the tip region and the side region of the bowl portion 801 The amount of water landing per area is "large". However, the amount of disinfected water per unit area directly landing on the tip area and the side area of the bowl portion 801 is “medium”.

  That is, the control device 405 controls the unit area of the disinfected water per unit area of the disinfected water directly landing on the inner wall surface 807 of the rim portion 805 (average landing amount). The spray device 481 is controlled so as to be larger than the amount of landing (average landing). In addition, the amount of landing water of disinfecting water directly landing does not include the amount of disinfecting water flowing down from above.

  The flush water for toilet bowl cleaning flows into the bowl portion 801, and the flush water for toilet bowl cleaning does not flow through the inner wall surface 807 of the rim portion 805. Therefore, the inner wall surface 807 of the rim portion 805 has a larger dirt load than the bowl portion 801. Therefore, as described above, the generation of bacteria and dirt on the inner wall surface 807 can be further suppressed by increasing the amount of disinfecting water directly applied to the inner wall surface 807 of the rim portion 805 having a relatively large dirt load. Can.

FIG. 21A and FIG. 21B are perspective views illustrating the method for measuring the particle diameter according to the embodiment.
Laser diffraction is used to measure the particle size. When a particle is irradiated with a laser, diffracted and scattered light is generated from the particle in various directions. The intensity of the diffracted scattered light has a spatial pattern in the direction in which the light is emitted. This spatial pattern is called a light intensity distribution pattern. The light intensity distribution pattern changes depending on the particle size of the particles. The particle size can be calculated by detecting the light intensity distribution pattern using the correlation between the particle size of the fine particles and the light intensity distribution pattern.

  As shown in FIGS. 21A and 21B, the particle size measuring device 600 has a light emitting unit 601 and a light receiving unit 602. The light receiving unit 602 is provided so as to be capable of receiving the laser emitted by the light emitting unit 601. In the measurement of the particle size, the laser emitted from the light emitting unit 601 is applied to the mist M sprayed from the spray device 481. The light receiving unit 602 receives diffracted and scattered light generated by laser irradiation. Thereby, the light intensity distribution pattern can be detected. As a measurement apparatus, Aerotrack LDSA-3500A (manufactured by Microtrack Bell Co., Ltd.) can be used.

Drawing 22 (a) and Drawing 22 (b) are a top view and a sectional view which illustrate a part of toilet device concerning a modification of an embodiment.
Fig.22 (a) is the top view which looked at a part of toilet apparatus from the front. FIG. 22 (b) is a cross-sectional view taken along the line AA shown in FIG. 22 (a).
As shown in FIGS. 22A and 22B, in this example, the mist damper 482 is not provided, and the slit S is provided in the casing 400. The spray device 481 is disposed in the casing 400, and the slit S is located at the lower front of the spray device 481. For example, the height (the 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 disc 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 481 b is inclined from the horizontal, and the disk 481 b sprays the mist M slightly downward from the horizontal. The mist M sprayed from the disc 481 b passes through the slit S and is sprayed into the bowl portion 801. As a result, since the mist damper 482 as shown in FIG. 5 is not provided, it is possible to prevent the stain Y such as urine from adhering to the spray device 481 without impairing the design and cleanability of the toilet device.

The embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. Those skilled in the art can appropriately modify the above-described embodiment as long as they have the features of the present invention and fall within the scope of the present invention. For example, the shape, size, material, arrangement, installation form and the like of each element provided with the toilet bowl, toilet seat apparatus and the like are not limited to those illustrated, and can be appropriately changed.
Moreover, each element with which each embodiment mentioned above is equipped can be combined as much as technically possible, and what combined these is also included in the scope of the present invention as long as the feature of the present invention is included.

  DESCRIPTION OF SYMBOLS 10 toilet apparatus, 100 toilet seat apparatus, 110-113 flow path, 200 toilet seat part, 200a opening, 203 surface, 203F front end area, 203L side area, 203R side area, 204 back side, 204F front end area, 204L side area, 204R side area, 300 toilet lid, 400 casing, 402 detection sensor, 403 human body detection sensor, 404 seating detection sensor, 405 control device, 431 solenoid valve, 450 bacteria removal device, 472 switching valve, 473 nozzle, 474 spout, 476 nozzle motor, 478 nozzle washing chamber, 479 nozzle damper, 481 spray device, 481a motor, 481b disk, 481c water supply port, 482 mist damper, 500 manual operation unit, 511 toilet seat motor, 512 toilet lid motor, 13 air blower, 514 warm air heater, 515 toilet seat heater, 516 air blower damper, 516a opening, 600 measuring device, 601 light emitting portion, 602 light receiving portion, 800 toilet bowl, 801 bowl portion, 801 F tip region, 801 L side region, 801 R Side area, 801w reservoir, 805 rim, top surface, 806F tip area, 806L side area, 806R side area, 807 inner wall surface, 807F tip area, 807L side area, 807R side area, 811 bowl water supply Mouth, M, M3 mist, M1 first mist, M2 second mist, S slit, T1 first predetermined time, T2 second predetermined time, U1 first rising air flow, U2 second rising air flow

Claims (7)

A toilet seat device installed at the top of the toilet bowl,
A toilet seat on which the user sits,
A disinfecting device that produces disinfected water;
A spray device for spraying the mist of the disinfected water or the mist of tap water;
A detection sensor that detects the user;
A control device that controls the sterilization device and the spray device based on detection information of the detection sensor;
Equipped with
The controller is
An after-mist mode in which the mist of the disinfected water is automatically sprayed to the inside of the toilet bowl and the toilet seat after the detection sensor detects the user but does not detect the user. When,
After the detection sensor detects the user from the state where the user is not detected, the disinfecting water or the tap water is automatically removed from the toilet seat so as not to reach the toilet seat. A pre-mist mode in which a mist of fungal water or a mist of tap water is sprayed into the toilet bowl;
A toilet seat device characterized in that it is feasible.   The controller makes the particle diameter of the mist of the germicidal water sprayed in the after-mist mode smaller than the particle diameter of the mist of the germicidal water or the mist of the tap water sprayed in the pre-mist mode The toilet seat device according to claim 1, wherein the spray device is controlled as follows. It further comprises a blower for blowing air into the toilet bowl,
The spray device is disposed below the toilet seat in a state where the toilet seat device is installed at the upper portion of the toilet bowl, and the mist of the disinfected water or the mist of the tap water is placed in the toilet bowl. Configured to spray towards the
In the after-mist mode, the blower is operated to raise the mist of the sterilizing water to the side of the toilet seat in a state where the mist of the sterilizing water is sprayed into the toilet bowl by the spray device. Control the blower to generate a first updraft capable of
In the pre-mist mode, the mist of the disinfected water or the mist of the disinfected water is not generated without generating the first ascending air flow in a state in which the mist of the disinfected water or the mist of the tap water is sprayed into the toilet bowl by the spray device. The toilet seat device according to claim 1 or 2, wherein the air blower is controlled so as not to raise the mist of tap water to the toilet seat side.   The toilet seat device according to claim 3, wherein the pre-mist mode stops the operation of the blower. The pre-mist mode operates the blower to generate a second upward airflow.
The toilet seat device according to claim 3, wherein a flow velocity of the second ascending air flow is lower than a flow velocity of the first ascending air flow.   The toilet seat device according to any one of claims 3 to 5, wherein the spray device sprays the mist of the sterilized water or the mist of the tap water radially in a top view. A toilet lid that can be opened and closed, which covers the toilet seat from above in a closed state;
A toilet lid motor for electrically opening and closing the toilet lid;
Equipped with
The control device executes the after-mist mode in a state in which the toilet lid is closed, and executes the pre-mist mode in a state in which the toilet lid is open. The toilet seat device described in.

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