JP6587221B2 - Toilet seat device and toilet device - Google Patents

Description

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

  In the toilet apparatus described in Patent Document 1, hypochlorous acid water having an oxidative decomposition action and a bleaching action is discharged into the bowl portion of the toilet. Thereby, generation | occurrence | production of the microbe and dirt in a bowl part can be suppressed.

  In the toilet bowl with a mist cleaning device described in Patent Document 2, a mist cleaning device is provided that converts ozone water, electrolytic sterilized water, and high-temperature water into a mist having a diameter of about 0.1 to 50 micrometers (μm). In patent document 2, it is supposed that the mist generated by the mist cleaning device can be cleaned by spreading it to every corner of the toilet bowl, toilet seat, toilet lid, and the like by the airflow.

Japanese Patent No. 5029930 JP 2007-138605 A

  In order to suppress generation | occurrence | production of a microbe and dirt by disinfecting water, such as hypochlorous acid water like patent document 1, it is desirable to make many disinfecting water land on an object site | part. For example, it is conceivable that a lot of mist-like sterilized water is made to land on the toilet bowl, toilet seat, and toilet lid by using an air flow as in Patent Document 2. However, in this case, a large amount of sterilized water will land on the upper surface of the rim portion of the toilet and the toilet seat. When a lot of sanitized water has landed on the toilet seat, when the user sits on the toilet seat or when the toilet seat is rotated by hand, the user's buttocks and hands have sanitized on the toilet seat. Touching the water may cause the user to feel uncomfortable. Further, when a large amount of sterilized water has landed on the upper surface of the rim portion of the toilet, the sterilized water that has landed on the upper surface of the rim portion may hang down outside the toilet.

  The present invention has been made based on recognition of such a problem, and sterilized water is used while suppressing bacteria and dirt not only in the bowl part of the toilet bowl but also in the wide range of the rim part and toilet seat of the toilet bowl. An object of the present invention is to provide a toilet seat device and a toilet device capable of preventing a person's skin from touching and sanitizing water from dripping out of a toilet.

  1st invention is the toilet seat apparatus installed in the upper part of a toilet bowl, Comprising: The toilet seat part which a user sits, The sterilization apparatus which produces | generates sanitization water, The said toilet seat apparatus is the said upper part of the said toilet bowl. In the state installed in the toilet seat, the spraying device is disposed below the toilet seat, sprays the mist of the sterilized water toward the toilet, and blows air into the toilet, A blower to be generated, and a control device for controlling the sterilization device, the spraying device, and the blower, and the control device operates the spraying device to generate the mist of the sterilized water in the large amount. In the state sprayed in the toilet bowl, the air blower is operated to generate a first rising airflow that can raise the mist of the sterilized water to the toilet seat portion side, and the air blower. Mistake of the sanitized water without generating the first ascending air current And the second step of not raising the toilet seat to the toilet seat part side, and the sterilized water in which the total amount of mist of the sterilized water sprayed in the first step is sprayed in the second step The toilet seat device is characterized in that the spray device is controlled to be less than the total amount of mist.

According to this toilet seat device, the mist of the sterilized water sprayed from below the toilet seat portion rises toward the toilet seat portion by the first rising airflow in the first step, and the toilet seat portion by the first rising airflow in the second step. Do not rise to the side. Thereby, the mist of sterilized water can be made to land not only on the bowl part of the toilet bowl but also on the upper surface of the rim part and the toilet seat part with a single spray device. Bacteria and dirt can be suppressed not only in the bowl part of the toilet bowl but also in a wide range such as the rim part of the toilet bowl and the toilet seat.
Moreover, the 1st process which generate | occur | produces the 1st ascending airflow which can raise the mist of bactericidal water to the toilet seat part side, and does not raise the mist of bactericidal water without generating the 1st ascending airflow side By executing the second step at different timings, the amount of sterilized water in the bowl portion, the amount of sterilized water in the upper surface of the rim portion, and the amount of sterilized water in the toilet seat are arbitrarily controlled. be able to.
Further, the total amount of the mist of the sterilized water sprayed in the first step is made smaller than the total amount of the mist of the sterilized water sprayed in the second step, thereby sterilizing the water on the toilet seat portion and the rim portion. The amount of water can be made relatively small, and the amount of sterilized water that can land on the inner wall surfaces of the bowl portion and the rim portion can be made relatively large. The inner wall surface of the bowl part or rim part is a part where dirt easily adheres and the dirt load is large. In addition, the inner wall surface of the bowl portion and the rim portion is a portion having a high tolerance for wetting because it does not easily cause inconvenience even when wet. Then, generation | occurrence | production of microbe and dirt can be suppressed by making many mists of sterilization water land on a bowl part and a rim | limb part. On the other hand, the upper surface of the toilet seat part and the rim part is a part where dirt is less likely to adhere directly and the dirt load is smaller than the inner wall surfaces of the bowl part and the rim part. For this reason, on the upper surface of the toilet seat part and the rim part, germs and dirt can be suppressed by landing a relatively small amount of sterilized water. In addition, if the upper surface of the toilet seat or rim is excessively wet, sanitized water may touch the user's skin or droop out of the toilet bowl. This is a part with a low tolerance for. On the other hand, the upper surface of the toilet seat or rim can be dried in a short time by reducing the amount of sterilized water landing on the upper surface of the toilet seat or rim. Thereby, it can prevent that disinfecting water touches a user's skin, or droops out of a toilet bowl.
Thus, according to this toilet seat device, the sterilized water touches the user's skin while suppressing bacteria and dirt not only in the bowl portion of the toilet bowl but also in the wide range of the toilet rim and toilet seat. And sanitizing water can be prevented from dripping out of the toilet.

  A second invention is the toilet seat device according to the first invention, wherein the second step stops the operation of the blower.

  According to this toilet seat device, by stopping the operation of the blower device, it is possible to more reliably prevent the mist of the sterilized water from rising to the toilet seat portion side in the second step.

  In a third aspect based on the first aspect, the second step activates the blower device to generate a second ascending air current, and the flow rate of the second ascending air current is higher than the flow rate of the first ascending air current. This is a toilet seat device characterized by being low.

  According to this toilet seat device, in the second step, the mist of the sterilized water is diffused in the horizontal direction or downward without being raised to the toilet seat portion side by the second ascending air flow having a flow velocity lower than that of the first ascending air current. be able to. Thereby, sanitization water can be made to land in the wider range in a toilet bowl.

  A fourth invention is characterized in that, in any one of the first to third inventions, in the second step, the spraying device sprays the mist of the sterilized water radially in a top view. Toilet seat device.

  According to this toilet seat device, in the second step, even if the mist of the sterilized water does not ride on the rising air current, the mist of the sterilized water is landed over a wide area in the toilet bowl such as the inner wall surface of the bowl or rim. Can be made.

  According to a fifth invention, in any one of the first to fourth inventions, the control device makes the time for executing the first step shorter than the time for executing the second step. Toilet seat device.

  According to this toilet seat device, it is possible to more reliably reduce the amount of sterilized water that lands on the upper surfaces of the toilet seat portion and the rim portion by shortening the time for performing the first step. On the other hand, by increasing the time for executing the second step, it is possible to increase the amount of sterilized water that reaches the inner wall surfaces of the bowl portion and the rim portion.

  In a sixth aspect based on any one of the first to fifth aspects, the control device is configured such that the mist particle size of the sterilized water sprayed during the execution of the second step is the first step. The toilet seat device is characterized in that the spray device is controlled so as to be larger than the particle size of the mist of the sterilized water sprayed during the execution of the above.

  According to this toilet seat device, the total amount of the sterilized water sprayed in the first step can be reduced by reducing the particle size of the mist of the sterilized water sprayed during the execution of the first step. Thereby, the quantity of the disinfection water which lands on the upper surface of a toilet seat part or a rim | limb part can be decreased more reliably. On the other hand, the total amount of the sterilized water sprayed in the second step can be increased by increasing the particle diameter of the mist of the sterilized water sprayed during the execution of the second step. Thereby, the quantity of the disinfecting water which lands on the inner wall surface of a bowl part and a rim | limb part can be increased.

  A seventh invention is a toilet seat device according to any one of the first to sixth inventions, wherein the control device executes the second step after executing the first step.

  According to this toilet seat device, the second step is executed after the first step of landing the mist of the sterilized water on the upper surface of the toilet seat portion and the rim portion. Since the upper surface of the toilet seat part and the rim part can be dried during the execution of the second step, it is possible to shorten the time from the end of one mist mode until the upper surface of the toilet seat part and the rim part is dried.

  According to an eighth aspect of the present invention, there is provided a toilet bowl having a bowl portion for receiving filth, a rim portion forming an upper edge portion, a toilet seat portion installed on an upper portion of the toilet bowl and seated by a user, and sterilized water. In a state where the sterilization device to be generated and the toilet seat device are installed on the upper portion of the toilet bowl, the sterilization device is disposed below the toilet seat portion and sprays the mist of the sterilized water toward the toilet bowl. A spraying device; a blowing device that blows air into the toilet and generates an updraft; and a control device that controls the sterilization device, the spraying device, and the blowing device, the control device comprising: In the state where the spray device is operated and the sterilized water mist is sprayed in the toilet, the blast device can be operated to raise the sterilized water mist to the toilet seat side. A first step of generating a first rising air flow, The second step in which the device does not generate the first ascending airflow and does not raise the mist of the sterilized water to the toilet seat side is performed at different timings, and the sterilized water sprayed in the first step The toilet device is characterized in that the spray device is controlled so that the total amount of mist of the mist is less than the total amount of mist of the sterilized water sprayed in the second step.

According to this toilet apparatus, the mist of the sterilized water sprayed from below the toilet seat rises to the toilet seat by the first ascending current in the first step, and the toilet seat by the first ascending current in the second step. Do not rise to the side. Thereby, the mist of sterilized water can be made to land not only on the bowl part of the toilet bowl but also on the upper surface of the rim part and the toilet seat part with a single spray device. Bacteria and dirt can be suppressed not only in the bowl part of the toilet bowl but also in a wide range such as the rim part of the toilet bowl and the toilet seat.
Moreover, the 1st process which generate | occur | produces the 1st ascending airflow which can raise the mist of bactericidal water to the toilet seat part side, and does not raise the mist of bactericidal water without generating the 1st ascending airflow side By executing the second step at different timings, the amount of sterilized water in the bowl portion, the amount of sterilized water in the upper surface of the rim portion, and the amount of sterilized water in the toilet seat are arbitrarily controlled. be able to.
Further, the total amount of the mist of the sterilized water sprayed in the first step is made smaller than the total amount of the mist of the sterilized water sprayed in the second step, thereby sterilizing the water on the toilet seat portion and the rim portion. The amount of water can be made relatively small, and the amount of sterilized water that can land on the inner wall surfaces of the bowl portion and the rim portion can be made relatively large. The inner wall surface of the bowl part or rim part is a part where dirt easily adheres and the dirt load is large. In addition, the inner wall surface of the bowl portion and the rim portion is a portion having a high tolerance for wetting because it does not easily cause inconvenience even when wet. Then, generation | occurrence | production of microbe and dirt can be suppressed by making many mists of sterilization water land on a bowl part and a rim | limb part. On the other hand, the upper surface of the toilet seat part and the rim part is a part where dirt is less likely to adhere directly and the dirt load is smaller than the inner wall surfaces of the bowl part and the rim part. For this reason, on the upper surface of the toilet seat part and the rim part, germs and dirt can be suppressed by landing a relatively small amount of sterilized water. In addition, if the upper surface of the toilet seat or rim is excessively wet, sanitized water may touch the user's skin or droop out of the toilet bowl. This is a part with a low tolerance for. On the other hand, the upper surface of the toilet seat or rim can be dried in a short time by reducing the amount of sterilized water landing on the upper surface of the toilet seat or rim. Thereby, it can prevent that disinfecting water touches a user's skin, or droops out of a toilet bowl.
Thus, according to this toilet apparatus, the sterilized water touches the user's skin while suppressing bacteria and dirt not only in the bowl part of the toilet bowl but also in the wide range of the rim part and toilet seat of the toilet bowl. And sanitizing water can be prevented from dripping out of the toilet.

  A ninth invention is the toilet device according to the eighth invention, wherein the second step stops the operation of the blower.

  According to this toilet device, it is possible to more reliably prevent the mist of the sterilized water from rising to the toilet seat portion side in the second step by stopping the operation of the blower device.

  In a tenth aspect based on the eighth aspect, the second step activates the air blower to generate a second ascending air current, and the flow rate of the second ascending air current is greater than the flow rate of the first ascending air current. It is a toilet device characterized by low.

  According to this toilet apparatus, in the second step, the mist of the sterilized water is diffused horizontally or downward without being raised to the toilet seat portion side by the second ascending air flow having a lower flow rate than the first ascending air flow. be able to. Thereby, sanitization water can be made to land in the wider range in a toilet bowl.

  An eleventh invention is characterized in that, in any one of the eighth to tenth inventions, in the second step, the spraying device sprays the mist of the sterilized water radially in a top view. Toilet device to do.

  According to this toilet apparatus, in the second step, even if the mist of the sterilized water does not ride on the rising air current, the mist of the sterilized water is landed over a wide area in the toilet bowl such as the inner wall surface of the bowl portion or the rim portion. Can be made.

  A twelfth invention is characterized in that, in any one of the eighth to eleventh inventions, the control device makes the time for executing the first step shorter than the time for executing the second step. Toilet device to do.

  According to this toilet apparatus, the amount of sterilized water that reaches the upper surface of the toilet seat portion and the rim portion can be more reliably reduced by shortening the time for performing the first step. On the other hand, by increasing the time for executing the second step, it is possible to increase the amount of sterilized water that reaches the inner wall surfaces of the bowl portion and the rim portion.

  In a thirteenth aspect based on any one of the eighth to twelfth aspects, the control device is configured such that the mist particle size of the sterilized water sprayed during the execution of the second step is the first step. The toilet device is characterized in that the spray device is controlled to be larger than the particle size of the mist of the sterilized water sprayed during the execution of the above.

  According to this toilet apparatus, the total amount of the sterilized water sprayed in the first step can be reduced by reducing the particle size of the mist of the sterilized water sprayed during the execution of the first step. Thereby, the quantity of the disinfection water which lands on the upper surface of a toilet seat part or a rim | limb part can be decreased more reliably. On the other hand, the total amount of the sterilized water sprayed in the second step can be increased by increasing the particle diameter of the mist of the sterilized water sprayed during the execution of the second step. Thereby, the quantity of the disinfecting water which lands on the inner wall surface of a bowl part and a rim | limb part can be increased.

  A fourteenth invention is the toilet device according to any one of the eighth to thirteenth inventions, wherein the control device executes the second step after executing the first step.

  According to this toilet apparatus, the second step is executed after the first step of landing the mist of the sterilized water on the upper surface of the toilet seat portion and the rim portion. Since the upper surface of the toilet seat part and the rim part can be dried during the execution of the second step, it is possible to shorten the time from the end of one mist mode until the upper surface of the toilet seat part and the rim part is dried.

  According to the aspect of the present invention, the sterilized water touches the user's skin while suppressing bacteria and dirt not only in the bowl part of the toilet bowl but also in the wide range of the rim part and toilet seat of the toilet bowl. Provided are a toilet seat device and a toilet device capable of preventing bacterial water from dripping out of the toilet.

It is a perspective view which illustrates the toilet apparatus which concerns on embodiment. 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. 5A to FIG. 5C are perspective views illustrating another toilet device according to the embodiment. FIG. 6A to FIG. 6C are schematic views illustrating the spray device according to the embodiment. FIG. 7A and FIG. 7B are plan views illustrating a disk of the spray device according to the embodiment. FIG. 8A and FIG. 8B are schematic views illustrating operations in the after mist mode and the manual mist mode of the toilet seat device according to the embodiment. FIG. 9A and FIG. 9B are cross-sectional views illustrating the operation in the first step of the toilet seat device according to the embodiment. FIG. 10A to FIG. 10D are plan views illustrating the operation in the first step of the toilet seat device according to the embodiment. FIG. 11A to FIG. 11C are a cross-sectional view and a plan view illustrating the operation in the second step of the toilet seat device according to the embodiment. It is a flowchart which illustrates the operation | movement in the after mist mode of the toilet seat apparatus which concerns on embodiment. It is a flowchart which illustrates the operation | movement in the manual mist mode of the toilet seat apparatus which concerns on embodiment. It is a schematic diagram which illustrates the operation | movement in the premist mode of the toilet seat apparatus which concerns on embodiment. FIG. 15A to FIG. 15C are a cross-sectional view and a plan view illustrating the operation in the premist mode of the toilet seat device according to the embodiment. FIG. 16A to FIG. 16C are a cross-sectional view and a plan view illustrating the operation in the premist mode of the toilet seat device according to the embodiment. It is a flowchart which illustrates the operation | movement in the after mist mode of the toilet seat apparatus which concerns on embodiment. It is a flowchart which illustrates operation | movement of the toilet seat apparatus which concerns on embodiment. FIG. 19A and FIG. 19B are schematic views illustrating the operation of the toilet seat device according to the embodiment. FIG. 20A to FIG. 20E are plan views illustrating the toilet apparatus according to the embodiment. It is a table | surface which illustrates the amount of mist landing in the after mist mode. FIG. 22A and FIG. 22B are perspective views illustrating a particle size measuring method according to the embodiment. FIG. 23A and FIG. 23B are a plan view and a cross-sectional view illustrating a part of a toilet apparatus according to a modification of the embodiment. It is a block diagram which illustrates the principal part structure of the toilet apparatus which concerns on the modification of embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a perspective view illustrating a toilet apparatus according to an embodiment.
FIG. 2 is a cross-sectional view illustrating a part of the toilet apparatus according to the embodiment.

  The toilet apparatus 10 illustrated in FIG. 1 includes a western-style seat toilet (hereinafter simply referred to as “container”) 800 and a toilet seat apparatus 100. The toilet bowl 800 has a concave bowl portion 801 that receives filth. The toilet seat device 100 is installed in the upper part of the toilet bowl 800.

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

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

  One or a plurality of water discharge ports 474 are provided at the tip of the nozzle 473. And the nozzle 473 can wash | clean the "buttock" etc. of the user who sat on the toilet seat part 200 by injecting water from the water outlet 474 provided in the front-end | tip part.

  In the present specification, “upward”, “downward”, “front”, “rear”, “left side”, and “right side” are respectively directed to the toilet seat 200 with the back toward the opened toilet lid 300. It is the direction seen from the user who sat down.

  As shown in FIG. 2, the toilet bowl 800 includes a rim portion 805 provided on the bowl portion 801. The rim portion 805 is an annular portion that forms the upper edge portion of the toilet bowl 800. In the bowl portion 801, stored water 801w is stored. For example, when the user performs toilet cleaning operation with a switch provided on a remote controller or the like, or when the user stands up from the toilet seat 200, toilet cleaning (sewage in the bowl 801 is discharged and the bowl 801 is discharged). The operation of cleaning the surface is performed. In toilet cleaning, cleaning water is supplied into the bowl portion 801. For example, in the example of FIG. 2, washing water is discharged from the bowl water supply port 811 along the upper edge of the toilet bowl 800.

  The rim portion 805 has an upper surface 806 and an inner wall surface 807. The upper surface 806 is a surface facing the back surface 204 of the closed toilet seat 200. The inner wall surface 807 is a portion above the portion of the inner wall of the toilet bowl 800 (the wall surface facing the center side of the bowl portion 801) through which flush water for toilet flushing flows. That is, in the present specification, the inner wall surface 807 of the rim portion 805 refers to a non-cleaning portion in toilet cleaning. In the example of FIG. 2, the inner wall surface 807 includes an elevation surface positioned above a bent portion 805 </ b> B 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 dirt load is large because dirt easily adheres directly. Further, the inner wall surface 807 of the bowl portion 801 and the rim portion 805 is a portion having a high tolerance for wetting because it does not easily cause inconvenience even when wet.

  The upper surface 806 of the toilet seat 200 and the rim 805 is less likely to be directly attached with dirt compared to the inner wall 807 of the bowl 801 and rim 805. For example, urine and sewage splashed by hitting the bowl 801 and the accumulated water 801 w adhere to the upper surface 806 of the toilet seat 200 and the rim 805. Therefore, the toilet seat portion 200 and the upper surface 806 of the rim portion 805 are portions where the dirt load is relatively small. In addition, if the upper surface 806 of the toilet seat 200 or the rim 805 is excessively wet, sanitized water may touch the user's skin or droop out of the toilet, so the toilet seat 200 or the rim 805 The upper surface 806 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 together the principal part structure of the waterway system and the electrical system.
The toilet seat apparatus 100 includes an electromagnetic valve 431, a sterilization apparatus 450, a switching valve 472, a spraying apparatus 481, a nozzle motor 476, a nozzle 473, a nozzle cleaning chamber 478, flow paths 110 to 113, and the like. These are arranged in the casing 400. In addition, as shown in FIG. 24, these may be incorporated in the toilet 800.

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

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

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

  The nozzle 473 receives the driving force from the nozzle motor 476 and moves forward or backward in the bowl portion 801 of the toilet bowl 800. That is, the nozzle motor 476 advances and retracts the nozzle 473 based on a command from the control device 405. The nozzle 473 is accommodated in the casing 400 when not in use. In a state where the nozzle 473 has advanced forward from the casing 400, the nozzle 473 discharges water from the water outlet 474 to wash the human body part.

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

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

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

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

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

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

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

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

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

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

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

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

FIG. 4A to FIG. 4E are a plan view and a perspective view illustrating the toilet apparatus according to the embodiment.
Fig.4 (a) shows the state which looked at a part of toilet apparatus 10 from the front.
As shown in FIG. 4A, the spray device 481, the nozzle damper 479, and the blower damper 516 are located in the upper rear portion of the bowl portion 801 in a state where the toilet seat device 100 is installed on the upper portion of the toilet bowl 800.

FIG. 4B is an enlarged view of a part of FIG. In FIG. 4B, a part of the casing 400 positioned in front of the spraying device 481 is omitted for easy viewing.
The nozzle damper 479 is pivotally supported with respect to the casing 400 so as to be rotatable. The nozzle 473 is positioned behind the nozzle damper 479 in a state where the nozzle 473 is retracted into the casing 400. The nozzle 473 abuts on the nozzle damper 479 and opens by rotating the nozzle damper 479 when the human body portion is washed, etc., and advances from the inside of the casing 400.

FIGS. 4C to 4E are perspective views showing the periphery of the spray device 481, the nozzle damper 479, and the blower damper 516 in an enlarged manner.
The blower damper 516 is pivotally supported with respect to the casing 400 so as to be rotatable. A blower 513 is disposed behind the blower damper 516. The blower damper 516 covers the opening 516 a of the casing 400. The air sent from the blower 513 is sent into the toilet bowl 800 through the opening 516a.

FIG. 4C shows a state in which the blower 513 has stopped operating, and FIGS. 4D and 4E show that the blower 513 is activated and blows air into the bowl portion 801. Indicates the state.
As shown in FIG. 4C, the blower damper 516 is closed in a state where the blower is stopped.
As shown in FIG. 4D, when the blower 513 is activated, the blower damper 516 is rotated and opened by the pressure (wind pressure) of air sent from the blower 513. Thereby, the air blower 513 blows air from the upper rear part in the bowl part 801 toward the lower front part in the bowl part 801 as indicated by an arrow A1.
In the state of FIG. 4E, the air volume sent by the blower 513 is large (or the wind speed is high) compared to the state of FIG. In this case, the blower damper 516 is further rotated and opened as compared with the state of FIG. Accordingly, the blower 513 blows air from the upper rear part in the bowl part 801 toward the upper front part in the bowl part 801 as indicated by an arrow A2, for example.

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

  FIG. 5A to FIG. 5C are perspective views illustrating another toilet device according to the embodiment. In this example, a mist damper 482 is provided in front of the spray device 481. The mist damper 482 covers at least a part of the front of the spray device 481 in the closed state. For example, the mist damper 482 covers the front of the disk 481b described later with reference to FIG. 6 in the closed state.

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

  FIGS. 5B and 5C are enlarged views of the periphery of the nozzle damper 479 and the mist damper 482. FIG. 5B shows a state where the nozzle 473 is retracted into the casing 400. At this time, the nozzle damper 479 is in a closed state and covers the front of the nozzle 473. Further, the mist damper 482 is in a closed state and covers at least a part of the front of the spray device 481.

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

  FIG. 5C shows a state in which the nozzle 473 has advanced forward and the nozzle damper 479 has been rotated. The advance distance to the front of the nozzle 473 at this time may be shorter than the advance distance to the front at the time of human body local cleaning. For example, the tip of the nozzle 473 is in contact with the nozzle damper 479. In FIG. 5C, the mist damper 482 rotates together with the nozzle damper 479 and is open. Part of the spraying device 481 (disk 481b) is exposed to the bowl portion 801 side. Thereby, the spraying device 481 can spray the mist toward the bowl portion 801. For example, as described later with reference to FIG. 23, 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. 6A is a perspective view of the spray device 481, and FIG. 6B is a side view of the spray device 481.
The spraying device 481 has a motor 481a and a disk 481b connected below the motor 481a. The rotation of the motor 481a is controlled by the control device 405. When the motor 481a rotates, the rotational driving force is transmitted to the disk 481b, and the disk 481b rotates.

  As shown in FIG. 6B, water W (tap water or sterilized water generated by the sterilizer 450) is supplied to the upper surface of the disk 481b. When the water W is supplied while the disk 481b is rotating, the spraying device 481 sprays the water W in a mist form. In this example, the disk 481b has a flat disk shape. However, the disk 481b may be appropriately provided with irregularities, or may have a conical shape or a sphere.

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

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

FIG. 7A and FIG. 7B are plan views illustrating a disk of the spray device according to the embodiment.
FIGS. 7A and 7B show the rotating disk 481b viewed from above. In the example of FIG. 7A, the number of water supply ports 481c that supply water W onto the disk 481b is one. In this case, in the region close to 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 bias arises in the particle size of mist. That is, a region R1 having a relatively large mist particle size, a region R2 having a medium mist particle size, and a region R3 having a relatively small mist particle size are generated. Further, the flow rate (the amount of mist sprayed per unit time) also varies depending on the particle size of the mist. That is, the flow rate is large in the region R1, the flow rate is medium in the region R2, and the flow rate is small in the region R3.

  Therefore, for example, depending on the position of the water supply port 481c and the rotation direction (clockwise or counterclockwise) of the disk 481b, the particle size, flow rate, direction, etc. of the mist sprayed from the spray device 481 into the toilet bowl 800, etc. Can be adjusted. Thereby, you may control the range which the mist sprayed from the spraying apparatus 481 lands, and the amount of mist landing in each range. Further, a cover for controlling the direction in which the mist is sprayed may be appropriately provided around the disk 481b.

  Further, the number of water supply ports 481c is not limited to one, and a plurality of water supply ports 481c may be provided. For example, in FIG. 7B, four water supply ports 481c are provided. The water supply ports 481c are arranged every 90 ° when viewed from the center of the disk 481b. By arranging the plurality of water supply ports 481c at substantially equal intervals along the outer periphery of the disk in this manner, uniform spraying can be performed around the spraying device 481 while suppressing mist particle size and flow rate deviation.

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

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

FIG. 8A and FIG. 8B are schematic views illustrating operations in the after mist mode and the manual mist mode of the toilet seat device according to the embodiment.
The controller 405 executes the first step and the second step in one mist mode (one after-mist mode or one manual mist mode). FIG. 8A illustrates the first step, and FIG. 8B illustrates the second step.

  As shown in FIG. 8A, the first step is to operate the blower 513 to activate the first ascending airflow in a state where the spraying device 481 is activated and the mist of the sterilized water is sprayed in the toilet bowl 800. U1 is generated. The first rising airflow U1 is an airflow that can raise the mist of the sterilized water to the toilet seat 200 side.

  As shown in FIG. 8B, in the second step, the first rising air flow U1 is generated in the blower 513 in the state where the spray device 481 is operated and the mist of the sterilized water is sprayed in the toilet bowl 800. The mist of the sterilized water is not raised to the toilet seat 200 side.

  With such a configuration, the mist of the sterilized water sprayed from below the toilet seat 200 is raised to the toilet seat 200 by the first rising air flow U1 in the first step, and the upper surfaces of the toilet seat 200 and the rim 805 Land on 806. On the other hand, the mist of the sterilized water sprayed from below the toilet seat part 200 does not rise to the toilet seat part side by the first ascending airflow U1 in the second step, and is applied to the inner wall surface 807 of the bowl part 801 or the rim part 805. Land on the water. Thereby, the mist of sterilized water can be landed not only on 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 418. Therefore, bacteria and dirt can be suppressed not only in the bowl portion 801 of the toilet bowl 800 but also in a wide range such as the rim portion 805 and the toilet seat portion 200 of the toilet bowl 800. Moreover, the toilet seat apparatus 100 can be reduced in size by using the single spray apparatus 481. FIG.

  In the second step, the range of “not raising the mist of the sterilized water toward the toilet seat” may include not only the case where all the mists are not raised but also the case where a slight amount of mists are raised. For example, the amount of mist rising to the toilet seat portion side in the second step is smaller than the amount of mist rising to the toilet seat portion side in the first step. However, in the second step, it is preferable that the amount of the sterilizing water landing on the toilet seat 200, the upper surface 806 of the rim, and the toilet lid 300 is as small as possible, for example, zero.

  Moreover, the timing which the control apparatus 405 performs a 1st process differs from the timing which the control apparatus 405 performs a 2nd process. A first step of generating a first rising air flow U1 capable of raising the mist of the sterilized water toward the toilet seat 200, and a mist of the sterilized water without generating the first ascending air U1 on the toilet seat 200 side By performing the second step that does not increase at different timings, the amount of sterilized water in the bowl 801, the amount of sterilized water in the upper surface of the rim 805, and the amount of sterilized water in the toilet seat 200 Can be controlled arbitrarily.

  Further, the control device 405 sprays so that the total amount (g) of the sterilized water mist sprayed in the first step is smaller than the total amount (g) of the sterilized water sprayed in the second step. The device 481 is controlled. Thereby, the amount of the sterilizing water that lands on the toilet seat 200 and the upper surface 806 of the rim 805 is relatively small, and the amount of the sterilizing water that lands on the inner wall 807 of the bowl 801 and the rim 805 is Relatively many. By causing a lot of sterilized water mist to land on the bowl portion 801 and the inner wall surface 807 which have a large dirt load and high tolerance to wetting, generation of bacteria and dirt can be suppressed. The toilet seat 200 and the upper surface 806 of the rim 805 have a low dirt load and a low tolerance to wetting. The upper surface 806 of the rim portion 805 can be dried. Thereby, it can prevent that disinfecting water touches a user's skin, or droops out of a 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 one mist mode, the spray device 481 may spray the mist continuously or may spray the mist intermittently. In addition, the total amount of mist in the first step and the total amount of mist in the second step can be controlled, for example, by adjusting the rotational speed of the disk 481b, the flow rate of sterilized water supplied to the spraying device 481, and the like. .

  For example, the control device 405 causes the particle size of the mist of the sterilized water sprayed during the execution of the second step to be larger than the particle size of the mist of the sterilized water sprayed during the execution of the first step. The spraying device 481 is controlled. For example, as shown in FIG. 8A, the spray device 481 generates the first mist M1 having a small particle size during the execution of the first step. The particle size of the first mist M1 (diameter of the microparticles p1 of the sterilized water) is a particle size that can be raised toward the toilet seat 200 by the first ascending airflow U1. Further, for example, as shown in FIG. 8B, the spray device 481 generates a second mist M2 having a medium particle diameter during the execution of the second step. The particle size of the second mist M2 (diameter of the microparticles p2 of the sterilized water) is larger than the particle size of the first mist M1.

  By reducing the particle size of the mist of the sterilized water sprayed during the execution of the first step, the total amount of the sterilized water sprayed in the first step can be reduced. As a result, the amount of sterilized water that lands on the toilet seat 200 and the upper surface 806 of the rim 805 can be reduced more reliably. On the other hand, the total amount of the sterilized water sprayed in the second step can be increased by increasing the particle diameter of the mist of the sterilized water sprayed during the execution of the second step. As a result, the amount of sterilized water that reaches the inner wall surface 807 of the bowl portion 801 and the rim portion 805 can be increased.

  Further, for example, the control device 405 stops the operation of the blower 513 and does not blow in the second step. Thereby, it can prevent more reliably that the mist of disinfection water rises to the toilet seat part 200 side in a 2nd process.

  Further, in the second step, the control device 405 may operate the blower 513 to generate the second ascending air flow U2. The flow rate of the second updraft U2 is lower than the flow rate of the first updraft U1, and the mist in the second step does not rise toward the toilet seat 200 due to the second updraft U2. The second rising airflow U2 can diffuse the mist horizontally or downward without being raised to the toilet seat 200 side. Thereby, the sterilized water can be landed in a wider range in the toilet bowl 800.

  Moreover, the spraying device 481 sprays the mist of the sterilized water radially in a top view. Radial is a state in which the range in which mist is present becomes wider as the distance from the spray device 481 increases. For example, when viewed from above, mist is sprayed in all directions away from the center of the disk 481b.

  Since the mist (first mist M1) in the first step is radial, the mist is placed on the entire first ascending air flow U1 and landed on a wide area such as the toilet seat 200 and the upper surface 806 of the rim 805. Can do. In addition, since the mist (second mist M2) in the second step is radial, even if the mist does not ride on the airflow, the bowl portion 801 and the inner wall surface 807 of the rim portion 805 and the like in a wide range in the toilet bowl 800, Mist can be landed.

  It should be noted that the spread of the mist (first mist M1 and second mist M2) can be adjusted by the rotational speed, arrangement, and shape of the disk 481b, the position of the water supply port 481c that supplies water to the disk 481b, and the like. it can.

FIG. 9A and FIG. 9B are cross-sectional views illustrating the operation in the first step of the toilet seat device according to the embodiment.
FIG. 9B is an enlarged view of the region R4 shown in FIG.
A broken arrow represents an airflow formed by the blower 513. As shown in FIG. 9A, in the first step, the blower 513 blows air forward and downward. At least a part of the air sent from the blower 513 hits the toilet bowl 800 (in the bowl portion 801 or the inner wall surface 807 of the rim portion 805) and heads upward. Thereby, the ascending air flow U <b> 1 is formed from the inside of the toilet bowl 800 below the toilet seat 200 to wind up above the toilet seat 200.

  A solid line arrow represents a flow of mist sprayed from the spray device 481. The thickness of the solid line arrow corresponds to the amount of sanitized water. The thicker the arrow, the more sanitized water. In the first step, part of the mist is radiated from the spray device 481 toward the inner wall surface 807 of the rim portion. The mist having a relatively small particle size is landed on the upper surface 806 of the rim, the toilet seat 200, the toilet lid 300, and the like by the rising airflow. Mist having a relatively large particle size may land on the inner wall surface 807 of the bowl portion 801 or the rim portion 805.

  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 arranged at a position away from the blower 513 in the left-right direction. Thereby, before the 1st mist M1 with a small particle size gets on the 1st ascending airflow U1, the airflow (airflow before generating the 1st ascending airflow U1) blown toward the inside of the toilet bowl 800 from the air blower 513 ) Can be prevented from landing in the toilet bowl 800.

FIG. 10A to FIG. 10D are plan views illustrating the operation in the first step of the toilet seat device according to the embodiment.
10 (a) and 10 (c), the toilet seat 200 and the toilet lid 300 are omitted for convenience of explanation. Dashed arrows indicate the blowing direction of the blower 513. A solid line arrow represents a flow of mist sprayed from the spray device 481. The thickness of the solid line arrow corresponds to the amount of sanitized water. The thicker the arrow, the more sanitized water. FIG. 10B and FIG. 10D show the toilet seat 200.
FIG. 10A and FIG. 10B show a state where the disk 481b of the spraying device 481 rotates counterclockwise when viewed from above. In this case, more sterilized water lands on the left side than on the right side of the toilet device 10. For example, as shown in FIG. 10A, on the upper surface of the rim portion, more sterilized water is landed in the left region RL1 than in the right region RR1. For example, as shown in FIG. 10B, in the toilet seat 200, more sterilized water reaches the left region RL2 than the right region RR2.

  FIG. 10C and FIG. 10D show a state where the disk 481b of the spraying device 481 is rotating clockwise in a top view. In this case, more sterilized water lands on the right side of the toilet device 10 than on the left side. For example, as shown in FIG. 10C, on the upper surface of the rim portion, more sterilized water is landed in the right region RR1 than in the left region RL1. For example, as shown in FIG. 10 (d), in the toilet seat 200, more sterilized water reaches the right region RR2 than the left region RL2.

  It is preferable that the control device 405 controls the motor 481a of the spray device 481 to appropriately switch between clockwise and counterclockwise during the first step. As a result, the mist distribution in the left-right direction tends to be uniform.

FIG. 11A to FIG. 11C are a cross-sectional view and a plan view illustrating the operation in the second step of the toilet seat device according to the embodiment.
A solid line arrow represents a flow of mist sprayed from the spray device 481. The thickness of the solid line arrow corresponds to the amount of sanitized water. The thicker the arrow, the more sanitized water. For convenience of explanation, the toilet lid 300 is omitted in FIG. 11A, and the toilet seat 200 and the toilet lid 300 are omitted in FIGS. 11B and 11C. In this example, control device 405 does not operate blower 513 in the second step. That is, in the 2nd process, the ventilation to the toilet bowl 800 is not performed.

  As shown in the sectional view of FIG. 11A, the spray device 481 sprays mist toward the upper end of the rim portion 805. In the second step, the mist of the sterilized water lands on the bowl portion 801 and the inner wall surface 807 of the rim portion 805. In the second step, since the first ascending air flow U1 is not generated, the mist of the sterilized water does not land on the upper surface 806 of the toilet seat 200 or the rim 805, for example.

  The plan view of FIG. 11 (b) shows a state where the disk 481b of the spraying device 481 rotates counterclockwise when viewed from above. In this case, more sterilized water will land on the left side than on the right side in the toilet bowl 800.

  The plan view of FIG. 11 (c) shows a state where the disk 481b of the spraying device 481 is rotating clockwise in a top view. In this case, more sterilized water lands on the right side than on the left side in the toilet bowl 800.

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

  As described above, sterilized water can be landed on the upper surface 806 of the rim portion 805, the toilet seat portion 200, the toilet lid 300, and the like by the first step. In addition, by the second step, sterilized water can be landed on the inner wall surface 807 of the bowl portion 801 and the rim portion 805. As described above, it is possible to sterilize every corner of the toilet apparatus 10 including the rim portion 805, the toilet seat portion 200, the toilet lid 300, and the like.

FIG. 12 is a flowchart illustrating the operation in the after mist mode of the toilet seat apparatus according to the embodiment.
When the human body detection sensor 403 detects that the user has left the room (step S401: Yes), the control device 405 controls the toilet lid motor 512 to close the toilet lid 300, open the electromagnetic valve 431, and the spray device 481 motor. 481a and the disk 481b are rotated counterclockwise (CCW) at a high speed (step S402). When the electromagnetic valve 431 is opened, water supply to the disk 481b is started.

  The control device 405 maintains the state where the disk 481b rotates at a high speed for a predetermined time (step S403: No). Thereby, the remaining water on the disk 481b can be discharged from the disk 481b. At this time, for example, since the mist damper 482 is closed, the mist is not sprayed into the toilet bowl 800.

  When the predetermined time has elapsed (step S403: Yes), the control device 405 advances the nozzle 473 into the bowl portion 801 by the nozzle motor 476. Accordingly, the mist damper 482 is opened (step S404).

  Thereafter, the control device 405 controls the sterilization device 450 to start generation of sterilized water, and controls the blower 513 to start blowing into the toilet bowl 800 (step S405). Thereby, spraying of the mist of disinfecting water in the toilet bowl 800, the toilet seat part 200, the toilet lid 300, etc. starts. The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b rotating at high speed counterclockwise for a predetermined time (t1) (step S406: No).

  When the predetermined time (t1) has elapsed (step S406: Yes), the control device 405 rotates the motor 481a and the disk 481b of the spray device 481 at high speed clockwise (CW) (step S407). The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b that rotates at high speed in the clockwise direction for a predetermined time (t1) (step S408: No). For example, step S405 to step S408 correspond to the first step.

  When the predetermined time (t1) elapses (step S408: Yes), the control device 405 controls the air blower 513 to stop the air blowing, and rotates the motor 481a and the disk 481b clockwise (CW) at a medium speed (step). S409). Accordingly, the mist is sprayed onto the bowl portion 801 and the inner wall surface 807 of the rim portion while suppressing the landing of the mist on the toilet seat portion 200 and the upper surface 806 of the rim portion. The control device 405 maintains a state in which the mist of the sterilized water is sprayed from the disk 481b rotating at a medium speed in the clockwise direction for a predetermined time (t2) (step S410: No).

  When the predetermined time (t2) has elapsed (step S410: Yes), the control device 405 causes the motor 481a and the disk 481b of the spray device 481 to rotate at a medium speed counterclockwise (CCW) (step S411). The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b rotating at a medium speed counterclockwise for a predetermined time (t2) (No in step S412). For example, step S409 to step S412 correspond to the second step.

  When the predetermined time (t2) has elapsed (step S412: Yes), the control device 405 controls the sterilization device 450 to stop the generation of sterilized water (step S413).

  The control device 405 maintains the state where the tap water is supplied to the disk 481b and the disk 481b rotates at a medium speed for a predetermined time (step S414: No). Thereby, self-cleaning of the disk 481b is performed. Self-cleaning is an operation of physically cleaning the disk at a rotational speed that does not cause mist. Bactericidal water may be used for self-cleaning.

  When the predetermined time has elapsed (step S414: Yes), the control device 405 closes the electromagnetic valve 431 (step S415). The control device 405 maintains the state where the water supply to the disk 481b is stopped and the disk 481b rotates at a medium speed for a predetermined time (step S416: No). Thereby, the residual water on the disk 481b can be removed.

  When the predetermined time has elapsed (step S416: Yes), the control device 405 stops the rotation of the motor 481a and the disk 481b, and causes the nozzle 473 to retreat into the casing 400 by the nozzle motor 476. Along with this, the mist damper 482 is closed. Further, the control device 405 turns on the toilet seat heater 515 (energized state) (step S417).

  The control device 405 maintains the toilet seat heater 515 in the ON state for a predetermined time (step S418: No). Thereby, the temperature of the toilet seat part 200 is raised, the disinfecting water that has landed on the toilet seat part 200 is evaporated, and the toilet seat part 200 can be dried. Instead of the toilet seat-heater 515, the air blower 513 and the warm air heater 514 may be driven to dry the toilet seat 200 with warm air.

  When the predetermined time has elapsed (step S418: Yes), the control device 405 turns off the toilet seat heater 515 (non-energized state) (step S419). Thus, the after mist mode is completed.

  As described above, the control device 405 executes the second step after performing the first step of landing the mist of the sterilized water on the upper surface 806 of the toilet seat 200 and the rim 805 in one mist mode. . Thus, since the upper surface 806 of the toilet seat 200 and the rim 805 can be dried during the execution of the second step, the upper surface 806 of the toilet seat 200 and the rim 805 is dried after the completion of one mist mode. The time can be shortened.

FIG. 13 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 S501: Yes), the control device 405 controls the toilet lid motor 512 to close the toilet lid 300, open the electromagnetic valve 431, and the motor 481a of the spray device 481. The disk 481b is rotated at high speed counterclockwise (CCW) (step S502). When the electromagnetic valve 431 is opened, water supply to the disk 481b is started.

  The control device 405 maintains the state where the disk 481b is rotated at a high speed for a predetermined time (step S503: No). Thereby, the remaining water on the disk 481b can be discharged from the disk 481b. At this time, for example, since the mist damper 482 is closed, the mist is not sprayed into the toilet bowl 800.

  When the predetermined time has elapsed (step S503: Yes), the control device 405 advances the nozzle 473 into the bowl portion 801 by the nozzle motor 476. Along with this, the mist damper 482 opens (step S504).

  Thereafter, the control device 405 controls the sterilization device 450 to start generation of sterilized water, and controls the blower device 513 to start blowing into the toilet bowl 800 (step S505). Thereby, spraying of the mist of disinfecting water in the toilet bowl 800, the toilet seat part 200, the toilet lid 300, etc. starts. The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b that rotates at high speed counterclockwise for a predetermined time (t3) (step S506: No).

  When the predetermined time (t2) elapses (step S506: Yes), the control device 405 rotates the motor 481a and the disk 481b of the spray device 481 at high speed clockwise (CW) (step S507). The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b that rotates at high speed in the clockwise direction for a predetermined time (t3) (step S508: No). For example, step S505 to step S508 correspond to the first step.

  When the predetermined time (t3) elapses (step S508: Yes), the control device 405 controls the air blower 513 to stop the air blowing, and rotates the motor 481a and the disk 481b clockwise (CW) at medium speed (step). S509). Accordingly, the mist is sprayed onto the bowl portion 801 and the inner wall surface 807 of the rim portion while suppressing the landing of the mist on the toilet seat portion 200 and the upper surface 806 of the rim portion. The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b rotating at a medium speed in the clockwise direction for a predetermined time (t4) (step S510: No).

  When the predetermined time (t4) elapses (step S510: Yes), the control device 405 rotates the motor 481a and the disc 481b of the spray device 481 counterclockwise (CCW) at a medium speed (step S511). The control device 405 maintains the state in which the mist of the sterilized water is sprayed from the disk 481b rotating at a medium speed counterclockwise for a predetermined time (t4) (step S512: No). For example, step S509 to step S512 correspond to the second step.

  When the predetermined time (t4) has elapsed (step S512: Yes), the control device 405 controls the sterilization device 450 to stop the generation of sterilized water (step S513).

  The control device 405 maintains the state where the tap water is supplied to the disk 481b and the disk 481b rotates at a medium speed for a predetermined time (step S514: No). Thereby, self-cleaning of the disk 481b is performed.

  When the predetermined time has elapsed (step S514: Yes), the control device 405 closes the electromagnetic valve 431 (step S515). The control device 405 maintains the state where the water supply to the disk 481b is stopped and the disk 481b is rotated at a medium speed for a predetermined time (step S516: No). Thereby, the residual water on the disk 481b can be removed.

  When the predetermined time has elapsed (step S516: Yes), the control device 405 stops the rotation of the motor 481a and the disk 481b, and causes the nozzle 473 to retreat into the casing 400 by the nozzle motor 476. Accordingly, the mist damper 482 is closed (step S517). This completes the manual mist mode. In addition, after the manual mist mode, the user can sterilize the toilet seat 200 by appropriately wiping off the sterilized water that has landed on the toilet seat 200 with toilet paper or the like.

  In the manual mist mode and the after mist mode, the control device 405 makes the time for executing the first step shorter than the time for executing the second step. For example, in the after mist mode described with reference to FIG. 12, the predetermined time (t1) is shorter than the predetermined time (t2). Further, in the manual mist mode described with reference to FIG. 13, the predetermined time (t3) is shorter than the predetermined time (t4). By shortening the time of the first step, it is possible to more surely reduce the amount of sterilized water that reaches the upper surface 806 of the toilet seat 200 and the rim 805. On the other hand, by increasing the time of the second step, it is possible to increase the amount of sterilizing water that lands on the inner wall surface 807 of the bowl portion 801 and the rim portion 805.

  Further, the control device 405 controls the spray device so that the time for spraying the sterilized water in the manual mist mode is longer than the time for spraying the sterilized water in the after mist mode. For example, the predetermined time (t3) described with reference to FIG. 13 is longer than the predetermined time (t1) described with reference to FIG. Thereby, the amount of the sterilized water that reaches the toilet seat 200 in the manual mist mode can be made larger than the amount of the sterilized water that reaches the toilet seat 200 in the after-mist mode. Thereby, in the manual mist mode, the sterilization water can be firmly infiltrated into the toilet paper and the sterilization performance can be improved. Moreover, it can suppress that the resin toilet seat part 200 is damaged at the time of wiping off.

  For example, a method of changing the landing amount of the sterilized water by changing the particle size of the mist of the sterilized water without changing the time for spraying the sterilized water is also conceivable. For example, by increasing the particle size, the amount of sterilized water can be increased. However, when the particle size is increased, the sterilized water may not easily get on the rising airflow. On the other hand, by changing the time for spraying the sterilized water, the amount of the sterilized water landing on the toilet seat 200 or the like can be increased without changing the particle size. For this reason, the mist of the sterilized water can be easily placed on the rising airflow, and the sterilized water can be diffused over a wide range such as the toilet seat 200.

In addition, the control device 405 operates the drying device that dries the toilet seat 200 with the first drying force during or after the execution of the after mist mode. For example, in FIG. 12, the control device 405 operates the toilet seat heater 515 with the first heating amount (first power (watt)) in steps S417 and S418.
On the other hand, the control device 405 does not operate the drying device during or after the execution of the manual mist mode, or operates it with the second drying force smaller than the first drying force. For example, in FIG. 13, the control device 405 does not operate the toilet seat heater 515. Or the control apparatus 405 may operate the toilet seat heater 515 by the 2nd heating amount (2nd electric power (watt)) smaller than the 1st heating amount. For example, the toilet seat heater 515 causes the seat surface temperature during or after execution of the after mist mode to be higher than the seat surface temperature during or after execution of the manual mist mode.

  As described above, during or after the execution of the after mist mode, the sterilized water that has landed on the toilet seat 200 by the drying device drying the toilet seat 200 with a relatively large first drying power (for example, the first electric power). The drying time can be shortened. On the other hand, during or after execution of the manual mist mode, the drying device does not operate, or the toilet seat 200 is landed by drying the toilet seat 200 with a relatively small second drying force (for example, second power). The drying time of the sterilized water can be lengthened. Thereby, it is possible to prevent the toilet seat portion 200 from drying before sterilizing water that has landed on the toilet seat portion 200 is wiped off with toilet paper.

With reference to FIGS. 14-16, the example of operation | movement of the toilet seat apparatus 100 in a premist mode is demonstrated.
FIG. 14 is a schematic view illustrating the operation in the premist mode of the toilet seat device according to the embodiment.
In the premist mode, the control device 405 operates the spray device 481 to generate mist M3 (sterilized water mist or tap water mist). Further, the control device 405 controls the blower 513 so that the first rising air flow U1 is not generated and the mist M3 is not raised toward the toilet seat 200 side in a state where the mist M3 is sprayed on the spray device 481. As described above, the first ascending air flow U1 is an air flow generated by the air blower 513 and can raise the mist of the sterilized water toward the toilet seat 200 in the after mist mode and the manual mist mode. It is.

In the premist mode, the mist sprayed from below the toilet seat 200 does not rise to the toilet seat 200 side, but lands on the bowl 801 of the toilet bowl 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, and dirt is less likely to adhere. Moreover, it can suppress that the toilet seat part 200 and the upper surface 806 of the rim | limb part 805 get wet in a premist mode because mist does not raise to the toilet seat part 200 side. This prevents the user's hand and buttocks from getting wet when the user is seated immediately after the premist mode or when the toilet seat 200 is rotated by hand.
On the other hand, in the after mist mode and the manual mist mode, the control device 405 operates the air blower 513 to raise the mist of the sterilized 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 placed on the ascending air current and landing on the toilet seat 200 and the case where the mist is not placed on the ascending air current. Thus, with a single spray device 481, in the after mist mode and the manual mist mode, the mist of sterilized water is allowed to land in the toilet bowl 800 and the toilet seat 200, and in the premist mode, the toilet seat 200 is not wetted. The mist can be landed in the toilet bowl 800.

  In the premist mode, the range that “the mist of the sterilized water or the mist of tap water is not raised toward the toilet seat” may include not only the case where all the mist does not rise, but also the case where a slight mist rises. Shall. For example, the amount of mist rising to the toilet seat portion side in the premist mode is smaller than the amount of mist rising to the toilet seat portion side in the after mist mode or manual mist mode.

  For example, in the premist mode, the control device 405 stops the operation of the blower 513 and does not blow. Thereby, it can prevent more reliably that mist raises to the toilet seat part 200 side.

  Further, in the premist mode, the control device 405 may operate the blower 513 to generate the rising air flow U3. The flow rate of the updraft U3 is lower than the flow rate of the first updraft U1, and the mist M3 does not rise toward the toilet seat 200 due to the updraft U3. The rising airflow U3 can diffuse the mist horizontally or downward without raising the mist to the toilet seat 200 side. Thereby, the sterilized water can be landed in a wider range in the toilet bowl 800.

  Moreover, also in the premist mode, the spraying device 481 sprays the mist of the sterilized water or the mist of tap water radially in a top view. Thereby, even when the mist does not ride on the rising airflow in the premist mode, the mist can be landed over a wide range such as the bowl portion 801 and the inner wall surface 807 of the rim portion 805.

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

FIG. 15A to FIG. 15C are a cross-sectional view and a plan view illustrating the operation in the premist mode of the toilet seat device according to the embodiment.
FIG. 15A to FIG. 15C illustrate a state where the motor 481a of the spray device 481 is rotating at a medium speed. At this time, the mist sprayed by the spray device 481 is a mist having a medium particle size. Further, in FIGS. 15A to 15C, solid arrows represent the flow of mist sprayed from the spray device 481. The thickness of the solid line arrow corresponds to the amount of sanitized water. The thicker the arrow, the more sanitized water. In FIG. 15B and FIG. 15C, the toilet seat 200 is omitted for convenience of explanation.

  As shown in the cross-sectional view of FIG. 15A, the spray device 481 sprays mist toward the upper end of the rim portion 805. When the motor 481a is rotating at a medium speed, the outer region RS (outer portion 801S and the rim portion in the bowl portion 801) of the toilet bowl 800 is compared with the inner region RU (inner portion 801U of the bowl portion 801) of the toilet bowl 800. A large amount of sterilized water or tap water reaches the inner wall surface 807) of 805.

  The plan view of FIG. 15B shows a state in which the disk 481b of the spraying device 481 rotates counterclockwise when viewed from above. In this case, more sterilized water or tap water arrives on the left side than on the right side in the toilet bowl 800.

  The plan view of FIG. 15C shows a state in which the disk 481b of the spraying device 481 is rotating clockwise in a top view. In this case, more sterilized water or tap water arrives on the right side than on the left side in the toilet bowl 800.

FIG. 16A to FIG. 16C are a cross-sectional view and a plan view illustrating the operation in the premist mode of the toilet seat device according to the embodiment.
FIG. 16A to FIG. 16C 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. Further, in FIGS. 16A to 16C, solid arrows represent the flow of mist sprayed from the spray device 481. The thickness of the solid line arrow corresponds to the amount of sanitized water. The thicker the arrow, the more sanitized water. In FIG. 16B and FIG. 16C, the toilet seat 200 is omitted for convenience of explanation.

  When the motor 481a rotates at a low speed, the mist particle size is larger and the centrifugal force is smaller than when the motor is rotating at a medium speed, so the flying distance of the mist is shortened. As shown in the cross-sectional view of FIG. 16A, when the motor 481a is rotating at a low speed, more sanitized water or tap water is provided in the inner region RU of the toilet bowl 800 than in the outer region RS of the toilet bowl 800. Will land.

  The plan view of FIG. 16B shows a state in which the disk 481b of the spraying device 481 is rotating clockwise in a top view. In this case, more sterilized water or tap water arrives on the right side than on the left side in the toilet bowl 800.

  The plan view of FIG. 16C shows a state in which the disk 481b of the spraying device 481 rotates counterclockwise when viewed from above. In this case, more sterilized water or tap water arrives on the left side than on the right side in the toilet bowl 800.

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

  Further, 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). As a result, the mist distribution in the left-right direction tends to be uniform.

FIG. 17 is a flowchart illustrating an operation in the after mist mode of the toilet seat apparatus according to the embodiment.
When the human body detection sensor 403 detects that the user has entered the room (step S301: Yes), the control device 405 controls the toilet lid motor 512 to open the toilet lid 300, open the electromagnetic valve 431, and the motor of the spray device 481. 481a and the disk 481b are rotated at a medium speed counterclockwise (CCW) (step S302). When the electromagnetic valve 431 is opened, water supply to the disk 481b is started.

  The control device 405 maintains the state where the disk 481b rotates at medium speed for a predetermined time (step S303: No). Thereby, the remaining water on the disk 481b can be discharged from the disk 481b. At this time, for example, since the mist damper 482 is closed, the mist is not sprayed into the toilet bowl 800.

  When the predetermined time has elapsed (step S303: Yes), the control device 405 advances the nozzle 473 into the bowl portion 801 by the nozzle motor 476. Accordingly, the mist damper 482 is opened (step S304). Thereby, spraying of the mist of the tap water in the toilet bowl 800 starts. The control device 405 maintains a state in which tap water mist is sprayed from the disk 481b rotating at a medium speed counterclockwise for a predetermined time (step S305: 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 direction (CW) at a medium speed (step S306). The control device 405 maintains a state in which tap water mist is sprayed from the disk 481b rotating at a medium speed in the clockwise direction for a predetermined time (step S307: No).

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

  When the predetermined time has elapsed (step S309: Yes), the control device 405 rotates the motor 481a and the disk 481b of the spray device 481 at low speed counterclockwise (CCW) (step S310). The control device 405 maintains the state where tap water mist is sprayed from the disk 481b rotating at a low speed counterclockwise for a predetermined time (step S311: No).

  When the predetermined time has elapsed (step S311: Yes), the control device 405 closes the electromagnetic valve 431 (step S312). The control device 405 maintains the state where the water supply to the disk 481b is stopped and the disk 481b rotates at a low speed for a predetermined time (step S313: No). Thereby, the residual water on the disk 481b 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 disk 481b, and causes the nozzle 473 to retreat into the casing 400 by the nozzle motor 476. Along with this, the mist damper 482 is closed (step S314). This completes the premist mode.

  The control device 405 executes the premist mode with the toilet lid 300 opened. That is, in the premist mode, mist is sprayed with the toilet lid 300 opened. As a result, the user can immediately sit on the toilet seat 200 without waiting for completion of execution of the premist mode. Note that, in the premist mode, the spray device 481 sprays so that the mist does not land on the toilet seat 200, so even if the user is seated on the toilet seat 200 during the premist mode, it is used. It is unlikely that mist will be applied to the person.

  On the other hand, the control device 405 executes the after mist mode and the manual mist mode with the toilet lid 300 closed. That is, in the after mist mode and the manual mist mode, the mist is sprayed with the toilet lid 300 closed. Accordingly, the mist of the sterilized water is diffused while preventing the mist of the sterilized water from splashing outside the toilet, and bacteria and dirt are spread over a wide range of the toilet bowl 800, the toilet seat 200, the toilet lid 300, and the like. Can be suppressed.

FIG. 18 is a flowchart illustrating the operation of the toilet seat device according to the embodiment.
FIG. 19A and FIG. 19B are schematic views illustrating the operation of the toilet seat device according to the embodiment.
FIG. 19B shows target portions (P1 to P4) where the mist of the sterilized water or tap water arrives. FIG. 19A shows the amount of water landing (water landing amount per unit area) in each mist mode in four stages of “large”, “medium”, “small”, and “minimal”.

  The premist mode is automatically set so that the sterilized water or tap water does not land on the toilet seat 200 after the detection sensor 402 detects the user from the state where the user is not detected. Bacterial water mist or tap water mist is sprayed into the toilet bowl 800.

  For example, as shown in FIG. 18, when the user enters the toilet room and the human body detection sensor 403 detects the entry of the user, a signal (detection information) indicating the entry of the user is transmitted to the control device 405. The The control device 405 automatically executes the premist mode based on the signal. In the premist mode, the control device 405 causes the spraying device 481 to spray tap water mist, and causes the target site to land with mist. The target parts in the premist mode are the target part P3 (the inner wall surface 807 of the rim part 805) and the target part P4 (the bowl part 801) as shown in FIGS. 19 (a) and 19 (b). In the premist mode, the toilet seat portion 200 and the upper surface 806 of the rim portion 805 are not spray target portions.

  Thus, before using the toilet seat apparatus 100, the sterilized water or tap water is made to land in the toilet bowl 800 by the premist mode. Thereby, a water film can be formed in the toilet bowl 800 which has a large dirt load and a high tolerance to wetting, and the sticking of dirt can be suppressed. On the other hand, on the upper surface 806 of the toilet seat 200 and the rim 805 having a small dirt load, the sterilized water is allowed to land in the after mist mode after use of the toilet seat device 100 without forming a water film in the premist mode. Thus, the sticking of filth can be suppressed. Therefore, in the toilet seat apparatus 100, in the premist mode, mist of sterilized water or tap water is sprayed into the toilet bowl 800 so as not to land on the toilet seat 200. Thereby, the user can use the sterilized water or tap water sprayed in the premist mode while suppressing the generation of bacteria and dirt in a wide range of the toilet bowl 800 and the toilet seat 200 by the premist mode and the aftermist mode. It can prevent getting wet. For example, even when the user turns the toilet seat 200 by hand or sits on the toilet seat 200 immediately after the execution of the premist mode, the sterilization that the user's buttocks or hand has landed on the toilet seat Touching water or tap water can be prevented. That is, the user can use the toilet seat apparatus 100 immediately without getting wet with mist.

  Furthermore, in the premist mode, by preventing the mist from landing on the toilet seat 200, a water film can be formed in the toilet bowl 800 in a short time, and the execution time of the premist mode can be shortened. A user who enters the toilet room can use the toilet seat apparatus 100 without waiting for the end of the premist mode.

  In the premist mode, the range that “sanitized water or tap water does not land on the toilet seat portion” is not limited to the case where all the mist does not land on the toilet seat portion 200, but a small amount of mist has landed on the toilet seat portion 200. It may include the case of doing. For example, the amount of tap water or sterilized water landing on the toilet seat 200 in the premist mode is smaller than the amount of sterilized water landing on the toilet seat 200 in the after mist mode or manual mist mode. However, in the premist mode, the amount of sterilized water or tap water that reaches the toilet seat 200 is preferably as small as possible, for example, zero.

  The after mist mode automatically sprays mist of sterilized water on the toilet bowl 800 and the toilet seat 200 after the detection sensor 402 detects the user and does not detect the user.

  For example, as shown in FIG. 18, when the user leaves the toilet room and the human body detection sensor 403 detects the user leaving the room, a signal (detection information) indicating the user leaving the room is transmitted to the control device 405. The The control device 405 automatically executes the after mist mode based on the signal. In the after mist mode, the control device 405 causes the sterilization device 450 to generate sterilized water, causes the spray device 481 to spray the mist of sterilized water, and causes the mist to land on the target site. As shown in FIGS. 19A and 19B, the target site in the after mist mode is the target site P1 (the front surface 203 of the toilet seat 200), the target site P2 (the back surface 204 and the rim 805 of the toilet seat 200). Are the target part P3 and the target part P4.

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

  In addition, since after mist mode is performed after use of a user's toilet seat apparatus 100, it is easy to ensure a long non-use time compared with before use. Therefore, even if the upper surface 806 of the toilet seat 200 and the rim 805 is wet by the after mist mode, the upper surface 806 of the toilet seat 200 and the rim 805 is likely to dry before the next use.

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

  For example, as shown in FIG. 18, when the user operates the manual operation unit 500 while entering the toilet room (for example, after execution of the premist mode), a signal (operation information) corresponding to the operation is transmitted to the control device 405. Is done. The control device 405 executes the manual mist mode based on the signal. The manual mist mode is executed at timings such as before use, after use, and during cleaning of the toilet seat apparatus 100. In the manual mist mode, the control device 405 causes the sterilization device 450 to generate sterilized water, causes the spray device 481 to spray mist of sterilized water, and causes the mist to land on the target site. The target parts in the manual mist mode are the target part P1, the target part P2, the target part P3, and the target part P4 as shown in FIGS. 19 (a) and 19 (b).

Thus, by causing the sterilization water to land in the toilet bowl 800 and the toilet seat 200 in the manual mist mode, generation of bacteria and dirt can be further suppressed. For example, sterilization can be performed by wiping off the sterilized water that has landed on the attached dirt that is difficult to suppress by the after mist mode using toilet paper or the like. The user can easily wipe and disinfect without using a special disinfecting paper.
In addition, for example, a user who is concerned about dirt on the toilet seat 200 before using the toilet seat device 100 can sterilize the toilet seat 200 in the manual mist mode. Since sterilization is performed based on the user's own operation, the user's sense of security and satisfaction can be enhanced.

  As shown in FIG. 18, 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 if it becomes a state, the after mist mode is executed. As a result, even when the manual mist mode is executed before the user uses the toilet seat device 100 (defecation or urination), the after mist mode is executed to more reliably suppress the occurrence of bacteria and dirt. can do.

  However, when the user leaves the toilet room immediately after the manual mist mode ends, there is a possibility that the sterilized water that has landed on the toilet seat 200 or the upper surface 806 of the rim 805 is not wiped off. For example, as shown in FIG. 18, when the manual mist mode is executed after using 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. There is a possibility that sterilized water remains 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 is not detecting the user from the state in which the detection sensor is detecting the user within the first predetermined time T1 from the end of the manual mist mode. You don't have to. Alternatively, the control device 405 determines the amount of sterilized water sprayed by the spray device 481 in the after mist mode from the state in which the detection sensor detects the user after the first predetermined time T1 has elapsed from the end of the manual mist mode. It may be less than when the user is not detected. Thereby, it is possible to prevent the toilet seat 200 and the upper surface 806 of the rim 805 from becoming too wet in the after mist mode, and sanitizing water from dripping out of the toilet. 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.

  Further, when the next user enters the toilet room immediately after the end of the after mist mode, the upper surface 806 of the toilet seat 200 and the rim 805 may be wet with the sterilized 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 and the rim 805 is Sanitized water may still remain.

  Therefore, the control device 405 may not execute the manual mist mode when the manual operation unit 500 is operated within the second predetermined time T2 from the end of the after mist mode. Alternatively, the control device 405 determines the amount of sterilized 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 since the end of the after mist mode. It may be less. Thereby, it can prevent that the toilet seat part 200 and the upper surface 806 of the rim | limb part 805 get wet too much by manual mist mode, and sanitization water droops out of a 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 determines that the amount of sterilized water landing on the toilet seat 200 in the manual mist mode per unit area (average amount of water landing) is sterilized water landing on the toilet seat 200 in the after mist mode. The spraying device is controlled so as to be larger than the landing amount of sterilized water per unit area (average landing amount). For example, as shown in FIG. 19A, the amount of sterilized water per unit area that reaches the target site P1 and the target site P2 in the manual mist mode is “small”. Further, in the after mist mode, the amount of sterilized water per unit area landing on the target site P1 is “minimal”, and the amount of sterilized water per unit area landing on the target site P2 is “ Small.

  As described above, since the amount of the sterilized water that reaches the toilet seat 200 in the aftermist mode is relatively small, the toilet seat 200 can be dried in a short time after the aftermist. Thereby, even if it is a case where a user uses toilet seat apparatus 100 after after mist, it can prevent sanitizing water touching a user's hand and buttocks. In addition, since the amount of the sterilizing water landing on the toilet seat 200 in the manual mist mode is relatively large, the sterilizing water can be firmly infiltrated into the toilet paper or the like. Thereby, while improving the disinfection performance by wiping off, it can suppress that the resin toilet seat part 200 is damaged at the time of wiping off. Therefore, both the drying performance in the after mist mode and the wiping performance in the manual mist mode can be achieved.

  Further, as shown in FIG. 19A, the amount of sterilized water per unit area that reaches the target site P3 and the target site P4 in the manual mist mode and the after-mist mode is “large”. On the other hand, the amount of sterilized water per unit area that reaches the target site P3 and the target site P4 in the premist mode is “medium”. After use of the toilet seat apparatus 100, the generation of germs and dirt can be further suppressed by causing a lot of sterilized water to land in the toilet bowl 800.

  Further, for example, the control device 405 makes the particle size of the mist of the sterilized water sprayed in the after mist mode smaller than the particle size of the mist of tap water (or sterilized water) sprayed in the premist mode. Control the spraying device. Further, the control device 405 sprays so that the mist particle size of the sterilized water sprayed in the manual mist mode is smaller than the particle size of tap water (or sterilized water) mist sprayed in the premist mode. Control the device.

  Thus, in the after mist mode and the manual mist mode, the mist of the sterilized water is easily diffused over a wide range by reducing the particle size of the mist. Thereby, bacteria and dirt can be suppressed not only in the bowl portion 801 but also in a wide range such as the rim portion 805 and the toilet seat portion 200. In the premist mode, a water film can be formed in a short time on the inner wall surface 807 of the bowl portion 801 and the rim portion 805 by increasing the particle diameter of the mist. Thereby, the premist mode can be terminated before the user is seated on the toilet seat.

  In the embodiment, the control device 405 performs the sterilization amount per unit area of the sterilized water in the toilet seat 200 and the sterilization on the upper surface 806 of the rim 805 in one mist mode (for example, one after mist mode). Each of the amount of water landing per unit area of water is smaller than the amount of water landing per unit area of the sterilized water in the bowl portion 801, and more than the amount of water landing per unit area of the sterilized water on the inner wall surface 807 of the rim portion 805. The spraying device 481 is controlled so as to be small.

  That is, according to the embodiment, in one mist mode, the control device 405 relatively increases the amount of sterilized water that reaches the inner wall surface 807 of the bowl portion 801 and the rim portion 805. By causing a large amount of mist of sterilized water to land on the bowl portion 801 and the inner wall surface 807 of the rim portion 805 having a high dirt load and a high tolerance to wetting, the 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 sterilized water that reaches the upper surface 806 of the toilet seat 200 and the rim 805. Since the toilet seat 200 and the upper surface 806 of the rim 805 have a relatively small dirt load, bacteria and dirt can be suppressed by landing a relatively small amount of sterilized water.

  Further, the toilet seat 200 and the upper surface 806 of the rim portion 805 can be dried in a short time by reducing the amount of sterilized water landing on the upper surface 806 of the toilet seat portion 200 and the rim portion 805 with low tolerance to wetting. . Thereby, it can prevent that disinfecting water touches a user's skin, or droops out of a toilet bowl.

  Thus, according to the embodiment, the sterilized water touches the user's skin while suppressing bacteria and dirt not only in the bowl portion 801 of the toilet bowl but also in the rim portion 805 and the toilet seat portion 200. It is possible to prevent discomfort and sanitizing water from dripping out of the toilet.

  For example, in one mist mode, the control device 405 causes the amount of water landing on the toilet seat portion 200 (water landing amount per unit area of the sterilizing water on the toilet seat portion) to drop the sterilized water that has landed on the toilet seat portion 200. The spraying device 481 is controlled so that the amount of landing water stays without being. Further, in one mist mode, the control device 405 causes the amount of water landing on the upper surface 806 of the rim portion 805 (the amount of water landing per unit area on the upper surface of the rim portion) to reach the upper surface 806 of the rim portion 805. The spraying device is controlled such that the sterilized water that has been drained is the amount of water that stays without dripping.

  As described above, since the sterilized water stays on the upper surface 806 of the toilet seat part 200 and the rim part 805 with a small dirt load without dripping, the oxidative decomposition action and the bleaching action time of the sterilized water should be ensured for a long time. And the generation of bacteria and dirt can be suppressed. Moreover, the risk of sanitizing water dripping out of the toilet can be reduced by setting the amount of water landing on the upper surface 806 of the toilet seat 200 and the rim 805 to be the amount of water that sanitized water stays.

  Further, in one mist mode, the control device 405 is configured such that the amount of water landing in the bowl portion 801 (the amount of water landing per unit area of the sterilizing water in the bowl portion) drops. The spraying device 481 is controlled so as to obtain the amount of water to be absorbed. In addition, the control device 405 determines that the amount of water landing on the inner wall surface 807 of the rim portion 805 (water landing amount per unit area of the sterilizing water on the inner wall surface of the rim portion) is the inner wall surface of the rim portion 805 in one mist mode. The spraying device 481 is controlled so that the sterilized water that has landed in 807 has a dripping amount of dripping water.

  In this way, the bowl wall 801 and the inner wall surface 807 of the rim part 805 having a large dirt load dripping sanitized water, not only the oxidative decomposition action and the bleaching action, but also the action of washing the dirt with the sanitized water. Can be used. Thereby, generation | occurrence | production of microbe and dirt can be suppressed more effectively than the case where sterilization water is retained.

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

  For example, the control device 405 determines that the amount of water landing on the toilet seat 200 is such that the sanitized water that has landed on the toilet seat 200 when the toilet seat 200 is rotated by the toilet seat motor 511 (rotating device) does not drip. The spraying device is controlled so that the amount of accumulated water is retained.

  Thereby, even when the toilet seat 200 is rotated, it is possible to prevent the sterilized water from dripping, so that the oxidative decomposition action and the bleaching action time of the sterilized water can be ensured for a long time. And the occurrence of dirt can be further suppressed. Moreover, the risk of sanitizing water dripping at an unintended site | part can be reduced by making the amount of water landing in the toilet seat part 200 into the amount of water landing in which sanitized water retains.

  The amount of water landing as described above can be controlled by controlling the particle size of the mist sprayed from the spray device 481. For example, the control device 405 determines that the particle size of the mist of the sterilized water sprayed on the toilet seat 200 and the particle size of the mist of the sterilized water sprayed on the upper surface 806 of the rim 805 are the bowl 801. The spraying device 481 is controlled so as to be smaller than the particle size of the mist of the sterilized water sprayed on the inner wall surface 807 of the rim portion 805. In addition, the particle size of the mist of the disinfecting water sprayed on each part is, for example, the particle diameter of the mist that reaches each part.

  Since the particle size of the mist of the sterilized water that lands on the toilet seat 200 and the upper surface 806 of the rim 805 is small, the sterilized water that has landed on the upper surfaces of the toilet seat and rim can be made difficult to drip. . Further, the sterilizing water mist that has landed on the inner wall surface 807 of the bowl portion 801 and the rim portion 805 has a large particle size, so that the sterilizing water that has landed on the inner wall surface 807 of the bowl portion 801 and the rim portion 805 is liquid. It becomes easy to sag and can improve the action of washing away dirt.

With reference to Fig.20 (a)-FIG.20 (e), the measuring method of the amount of landing (average amount of landing) is demonstrated.
FIG. 20A to FIG. 20E are plan views illustrating the toilet apparatus according to the embodiment. 20A and 20B show the front 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 a user is seated, and faces upward when the toilet seat 200 is closed. The back surface 204 is a surface opposite to the front surface 203 and faces downward when the toilet seat 200 is closed.

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

As shown in FIG. 20 (b), the back surface 204 includes a front end region 204F positioned on the front side, a side region 204R positioned on the right side, and a side positioned on the left side when the toilet seat 200 is closed. Area L 204L. The area of each region is 20 square centimeters (cm ² ).
Landing amount per unit area (g / cm ² ) in the tip region 204F, water landing amount per unit area (g / cm ² ) in the side region 204R, and amount of water landing (g / cm ² ) in the side region 204L / 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 (average amount of water landing (g / cm ² )) in the toilet seat 200 is an average of the amount of water landing per unit area on the front surface 203 and the amount of water landing per unit area on the back surface 204.

As shown in FIG. 20C, the upper surface 806 of the rim portion 805 includes a front end region 806F positioned on the front side, a side region 806R positioned on the right side, and a side region 806L positioned 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 the 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 region 806L.

As shown in FIG. 20D, the inner wall surface 807 of the rim portion 805 includes a front end region 807F positioned on the front side, a side region 807R positioned on the right side, and a side region 807L positioned on the left side. Have. 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 landing amount per unit area (g / cm ^2), the average of the landing amount per unit area in the side region 807L (g / cm ^2).

As shown in FIG. 20 (e), the bowl portion 801 (the portion of the inner side surface of the bowl portion 801 where no accumulated water is provided) includes a front end region 801F located on the front side and a lateral 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 the 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 region 801L.

Each region shown in FIGS. 20A to 20E (203F, 203L, 203R, 204F, 204L, 204R, 806F, 806L, 806R, 807F, 807L, 807R, 801F, 801L, and 801R) Measurement of the amount of water landing per unit area is as follows.
First, after spraying mist, the area | region of a fixed area is wiped off with paper, and the mist which landed on the said area | region is made to absorb water in a paper. Next, the difference between the weight of the paper before water absorption and the weight of the paper after water absorption is defined as the amount of mist (water arrival amount) that has landed on the region. By dividing the amount of water landing by the area of the region (the wiped area), the amount of water landing per unit area in the region is calculated.

FIG. 21 is a table illustrating the amount of mist landing in the after mist mode.
In FIG. 21, the magnitude relation of the amount of water landing per unit area in each region shown in FIGS. It shows with.
For example, the amount of water landing per unit area in the tip region and the side region of the upper surface 806 of the rim portion 805 is “medium”. On the other hand, the amount of water landing per unit area in the tip region and the side region of the surface 203 of the toilet seat 200 is “minimal”.

  That is, the control device 405 is configured so that the amount of landing water per unit area of the sterilizing water on the upper surface 806 of the rim portion 805 is larger than the amount of landing water per unit area of the sterilizing water on the surface 203 of the toilet seat 200. The spraying device 481 is controlled. Compared with the surface 203 of the toilet seat 200 that is directly touched by the user, the amount of the sterilized water that is deposited on the upper surface 806 of the rim 805 is less likely to be directly touched by the user. And the occurrence of dirt can be suppressed.

  Further, when the user urinates while sitting on the toilet seat 200, urine and sewage that has splashed against the bowl 801 and the stored water 801w are likely to adhere 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. 21, the amount of water landing per unit area in the tip 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, in the case where the front side of the opening 200a of the toilet seat 200 is set as the front part and the side of the opening 200a is set as the side part, the control device 405 controls the sterilized water in the front part of the back surface 204 of the toilet seat 200. The spraying device 481 is set so that the amount of water landing per unit area (average water landing amount) is larger than the amount of water landing per unit area (average water landing amount) of the sterilized water at the side portion of the back surface 204 of the toilet seat 200. Control. By increasing the amount of the sterilizing water that lands on the front side as compared to the side, the generation of bacteria and dirt on the back surface 204 of the toilet seat 200 can be further suppressed.

  Further, since the possibility that the user directly touches the back surface 204 of the toilet seat part 200 is lower than that of the front surface 203, the back surface 204 of the toilet seat part 200 is a part having a high tolerance for wetting. In addition, urine and sewage splashed by hitting the bowl portion 801 and the stored water 801 w are likely to adhere to the back surface 204 of the toilet seat portion 200. For this reason, compared with the surface 203 of the toilet seat part 200, the back surface 204 of the toilet seat part 200 is a part with a large dirt load. On the other hand, as shown in FIG. 21, the control device 405 has a water landing amount per unit area of the sterilized water on the back surface 204 of the toilet seat 200. The spraying device 481 is controlled so as to be larger than the amount of water landing.

  That is, the amount of sterilizing water that lands on the back surface 204 of the toilet seat 200 is larger than that of the surface 203 of the toilet seat 200. Increasing the amount of sterilizing water that lands on the back surface 204 of the toilet seat 200 can suppress the generation of bacteria and dirt.

  Further, as shown in FIG. 21, the amount of water 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 is unity. The amount of water landing per area is “large”. However, the amount of sterilized water per unit area that directly reaches the tip region and the side region of the bowl portion 801 is “medium”.

  That is, the control device 405 has a unit area of the sterilized water directly landing on the bowl portion 801 as the amount of landing (average amount of water landing) per unit area of the sterilizing water directly landing on the inner wall surface 807 of the rim portion 805. The spraying device 481 is controlled so as to be larger than the per unit water landing amount (average water landing amount). It should be noted that the amount of sterilized water that is directly landed does not include the amount of sterilized water that flows down from above.

  Toilet bowl cleaning water flows through the bowl portion 801, and toilet bowl cleaning water does not flow through the inner wall surface 807 of the rim 805. For this reason, the inner wall surface 807 of the rim portion 805 has a greater dirt load than the bowl portion 801. Therefore, as described above, by increasing the amount of sterilizing water that directly reaches the inner wall surface 807 of the rim portion 805 having a relatively large dirt load, the generation of bacteria and dirt on the inner wall surface 807 is further suppressed. Can do.

FIG. 22A and FIG. 22B are perspective views illustrating a particle size measuring method according to the embodiment.
Laser diffraction is used to measure the particle size. When the fine particles are irradiated with laser, diffraction scattered light is generated from the fine particles in various directions. The intensity of diffracted scattered light has a spatial pattern in the direction in which light is emitted. This spatial pattern is called a light intensity distribution pattern. The light intensity distribution pattern changes depending on the particle size of the fine particles. The particle diameter can be calculated by detecting the light intensity distribution pattern using the correlation between the particle diameter of the fine particles and the light intensity distribution pattern.

  As shown in FIGS. 22A and 22B, the particle size measuring apparatus 600 includes a light emitting unit 601 and a light receiving unit 602. The light receiving unit 602 is provided so as to receive a laser emitted from the light emitting unit 601. In the measurement of the particle size, the laser emitted from the light emitting unit 601 is irradiated to the mist M sprayed from the spraying device 481. The light receiving unit 602 receives diffraction scattered light generated by laser irradiation. Thereby, a light intensity distribution pattern can be detected. Aerotrack LDSA-3500A (manufactured by Microtrack Bell Co., Ltd.) can be used for the measuring device.

FIG. 23A and FIG. 23B are a plan view and a cross-sectional view illustrating a part of a toilet apparatus according to a modification of the embodiment.
Fig.23 (a) is the top view which looked at a part of toilet apparatus from the front. FIG. 23B is a cross-sectional view taken along line AA shown in FIG.
As shown in FIGS. 23A and 23B, 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 in the lower front part of the spray device 481. For example, the height (position in the vertical direction) of the upper end surface S1 of the slit S is the same as the height of the bottom surface B1 of the disk 481b, and the upper end surface S1 and the bottom surface B1 are on the same plane. Alternatively, the upper end surface S1 may be lower than the bottom surface B1.

  The upper surface of the disk 481b is inclined from the horizontal, and the disk 481b sprays the mist M slightly downward from the horizontal. The mist M sprayed from the disk 481b passes through the slit S and is sprayed toward the bowl portion 801. Accordingly, since the mist damper 482 as shown in FIG. 5 is not provided, dirt Y such as urine can be prevented from adhering to the spray device 481 without impairing the design and cleaning properties of the toilet device.

FIG. 24 is a block diagram illustrating the main configuration of a toilet apparatus according to a modification of the embodiment.
In addition, FIG. 24 represents together the principal part structure of the waterway system and the electrical system.
As shown in FIG. 24, in this example, the electromagnetic valve 431, the sterilization device 450, the switching valve 472, the spray device 481, the nozzle motor 476, the nozzle 473, the nozzle cleaning chamber 478, the flow paths 110 to 113, and the like Built in the toilet bowl 800. In this example, the toilet seat motor 511 (rotating device), the toilet lid motor 512 (rotating device), the blower 513, the warm air heater 514, and the like are incorporated in the toilet bowl 800. In this example, the detection sensor 402 (for example, the human body detection sensor 403, the seating detection sensor 404, etc.) and the control device 405 are incorporated in the toilet 800.

  As described above, each member (hereinafter referred to as “functional part”) incorporated in the casing 400 of the toilet seat apparatus 100 in the example shown in FIG. 3 may be incorporated in the toilet bowl 800. Even when the functional unit is incorporated into the toilet bowl 800, the spraying device 481 and the like can be operated in the same manner as when the functional unit is incorporated into the casing 400.

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

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

  DESCRIPTION OF SYMBOLS 10 Toilet apparatus, 100 Toilet seat apparatus, 110-113 Flow path, 200 Toilet seat part, 200a Opening, 203 Surface, 203F tip area, 203L Side area, 203R Side area, 204 Back surface, 204F Tip area, 204L Side area, 204R lateral region, 300 toilet lid, 400 casing, 402 detection sensor, 403 human body detection sensor, 404 seating detection sensor, 405 control device, 431 solenoid valve, 450 sterilization device, 472 switching valve, 473 nozzle, 474 water outlet, 476 nozzle motor, 478 nozzle cleaning chamber, 479 nozzle damper, 481 spraying 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 Blower, 514 Warm air heater, 515 Toilet seat heater, 516 Blower damper, 516a Opening, 600 Measuring device, 601 Light emitting part, 602 Light receiving part, 800 Toilet bowl, 801 Bowl part, 801F Tip area, 801L Side area, 801R Side region, 801w Water pool, 805 Rim part, 806 Top surface, 806F Tip region, 806L Side region, 806R Side region, 807 Inner wall surface, 807F Tip region, 807L Side region, 807R Side region, 811 Bowl water supply Mouth, M, M3 mist, M1 first mist, M2 second mist, S slit, T1 predetermined time, T2 predetermined time, U1 first updraft, U2 second updraft

Claims (14)

A toilet seat device installed at the top of the toilet,
A toilet seat where a user is seated;
A sterilization device for generating sterilized water;
In the state where the toilet seat device is installed in the upper part of the toilet bowl, the spraying device is disposed below the toilet seat portion and sprays the sterilized water mist toward the toilet bowl;
A blower that blows air into the toilet and generates an updraft;
A control device for controlling the sterilization device, the spray device, and the blower;
With
In the state where the spray device is operated to spray the sterilized water mist into the toilet, the control device operates the blower to raise the sterilized water mist to the toilet seat side. A first step of generating a first ascending airflow that can be generated, and a second step of not generating the first ascending airflow in the blower and not raising the mist of the sterilized water to the toilet seat side. The spraying device is executed at different timings, and the spray device is configured such that the total amount of the sterilized water mist sprayed in the first step is smaller than the total amount of the sterilized water mist sprayed in the second step. A toilet seat device that is controlled.   The toilet seat device according to claim 1, wherein the second step stops the operation of the blower. In the second step, the blower is operated to generate a second rising airflow,
2. The toilet seat device according to claim 1, wherein a flow rate of the second ascending airflow is lower than a flow velocity of the first ascending airflow.   4. The toilet seat device according to claim 1, wherein in the second step, the spraying device sprays the mist of the sterilized water radially in a top view. 5.   The toilet seat device according to any one of claims 1 to 4, wherein the control device makes the time for executing the first step shorter than the time for executing the second step.   The control device has a particle size of the sterilized water mist sprayed during the execution of the second step larger than a particle size of the sterilized water mist sprayed during the execution of the first step. The toilet seat device according to any one of claims 1 to 5, wherein the spray device is controlled so as to become.   The toilet seat device according to claim 1, wherein the control device executes the second step after executing the first step. A toilet having a bowl for receiving filth and a rim for forming an upper edge;
A toilet seat installed on top of the toilet and seated by a user;
A sterilization device for generating sterilized water;
In the state where the toilet seat device is installed in the upper part of the toilet bowl, the spraying device is disposed below the toilet seat portion and sprays the sterilized water mist toward the toilet bowl;
A blower that blows air into the toilet and generates an updraft;
A control device for controlling the sterilization device, the spray device, and the blower;
With
In the state where the spray device is operated to spray the sterilized water mist into the toilet, the control device operates the blower to raise the sterilized water mist to the toilet seat side. A first step of generating a first ascending airflow that can be generated, and a second step of not generating the first ascending airflow in the blower and not raising the mist of the sterilized water to the toilet seat side. The spraying device is executed at different timings, and the spray device is configured such that the total amount of the sterilized water mist sprayed in the first step is smaller than the total amount of the sterilized water mist sprayed in the second step. Toilet device characterized by controlling.   The toilet device according to claim 8, wherein the second step stops the operation of the blower. In the second step, the blower is operated to generate a second rising airflow,
The toilet apparatus according to claim 8, wherein a flow rate of the second updraft is lower than a flow rate of the first updraft.   The toilet device according to any one of claims 8 to 10, wherein, in the second step, the spraying device sprays the mist of the sterilized water radially in a top view.   The said control apparatus makes the time which performs said 1st process shorter than the time which performs said 2nd process, The toilet apparatus as described in any one of Claims 8-11 characterized by the above-mentioned.   The control device has a particle size of the sterilized water mist sprayed during the execution of the second step larger than a particle size of the sterilized water mist sprayed during the execution of the first step. The toilet device according to any one of claims 8 to 12, wherein the spraying device is controlled so as to be.   The said control apparatus performs the said 2nd process, after performing the said 1st process, The toilet apparatus as described in any one of Claims 8-13 characterized by the above-mentioned.

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