JP7004249B2 - Toilet device - Google Patents

Description

Aspects of the invention generally relate to toilet appliances.

In the toilet bowl with a mist cleaning device described in Patent Document 1, mist of ozone water, electrolytic sterilization water, and high temperature water of about 0.1 to 50 μm is sprayed. In Patent Document 2, the mist generated by the mist cleaning device can be spread to every corner of the toilet bowl, toilet seat, toilet lid, and the like for cleaning.

Japanese Unexamined Patent Publication No. 2007-138605

For example, the main body of the toilet seat device is placed on the upper surface of the rim of the toilet bowl. At this time, a gap is created between the main body of the toilet seat device and the upper surface of the rim. Here, when the mist of disinfectant water is sprayed so that the mist of disinfectant water also lands on the upper surface of the rim of the toilet bowl, the mist of disinfectant water is generated in the gap between the main body of the toilet seat device and the upper surface of the rim. It may get in.

The gap between the main body of the toilet seat device and the upper surface of the rim is a part that is difficult for the user to see and is not easy to wipe off. Therefore, the mist that has entered this gap may aggregate to form a large water droplet or water film, and water leakage that drips out of the toilet bowl may occur.

The present invention has been made based on the recognition of such a problem, and provides a toilet device capable of suppressing water leakage to the outside of the toilet bowl when a mist of disinfectant water is sprayed on the upper surface of the rim of the toilet bowl. The purpose is to do.

The first invention comprises a toilet bowl having a bowl portion that receives filth, an upper surface of a rim located on the bowl portion, and a toilet seat device mounted on the upper surface of the rim. A main body portion mounted on the rear portion of the upper surface of the rim, a sterilization device provided in the main body portion to generate sterilized water, and a sterilization device provided in the main body portion or below the main body portion, and in the bowl portion and The rim upper surface has a spraying device for spraying the disinfectant water and a control device for controlling the spraying device, and the rim upper surface has a non-mounted portion on which the main body portion is not mounted and the non-mounted portion. The spraying device has a mounting portion located behind the mounting portion and on which the main body portion is mounted, and the spraying device has an average landing per unit area of the disinfectant water landing on the non-placed portion. The toilet device is characterized in that the disinfectant water is ejected so that the amount of water is larger than the average amount of water landed per unit area of the disinfectant water landing on the above-mentioned storage portion.

According to this toilet device, by landing a large amount of sterilized water on the non-placed portion as compared with the placed portion, it is possible to suppress the generation of bacteria and dirt in the non-placed portion. The non-placed part is a part that is easy to dry because air is less likely to stay than the placed part, and is a part that is easy for the user to see and wipe off. Therefore, even if the disinfectant water lands on the non-placed part on the upper surface of the rim, the disinfectant water aggregates in the non-placed part and becomes a large water droplet or a water film, which is outside the toilet bowl. It is unlikely that it will hang down.
In addition, since the amount of sterilized water landing on the mounting part is relatively small, the sterilized water agglomerates at the mounting part to form large water droplets or a water film, which drips out of the toilet bowl without knowing it. It can be suppressed. As described above, when the mist of sterilized water is sprayed on the upper surface of the rim of the toilet bowl, water leakage to the outside of the toilet bowl can be suppressed.

A second aspect of the invention further comprises, in the first aspect, a blower that blows air into the toilet bowl to generate an updraft, wherein the sprayer is a predicated portion of the sprayer in a top view. The disinfectant water ejected to the side is formed in a size that does not ride on the updraft, and the disinfectant water ejected on the non-mounting portion side of the spray device is formed in a size that rides on the updraft in the top view. It is a toilet device characterized by doing.

According to this toilet device, since the sterilized water ejected from the spray device to the non-mounted portion side rides on the updraft, a large amount of sterilized water can be landed on the non-mounted portion. Since the sterilized water ejected from the spraying device to the mounting portion does not ride on the updraft, it is possible to prevent the sterilized water from landing on the mounting portion.

A third aspect of the invention further comprises, in the first invention, a blower that blows air toward the inside of the toilet bowl to generate an updraft, and the spraying device is a pre-described portion of the spraying device in a top view. The disinfectant water ejected to the side is in the form of a shower, a film, or a mist having the first particle size, and the disinfectant water ejected to the non-placement portion side of the spray device in the top view is the first particle size. It is a toilet device characterized by having a mist shape having a second particle size smaller than that of the toilet device.

According to this toilet device, the sterilized water ejected from the spray device to the non-mounting portion side is more likely to get on the updraft than the sterilized water ejected to the mounting portion side. On the contrary, the sterilized water ejected from the spraying device to the mounting portion side is less likely to get on the updraft than the sterilized water ejected to the non-mounted portion side. As a result, it is possible to prevent the sterilized water from landing on the placed portion while allowing a large amount of sterilized water to land on the non-placed portion.

In the fourth aspect of the invention, in any one of the first to third aspects, the spraying device includes a first spouting portion for landing the disinfectant water on the previously described placing portion side in the bowl portion, and the non-spouting portion. It is a toilet device having a second spouting portion for landing the disinfectant water on a mounting portion, and the second spouting portion is arranged above the first spouting portion. ..

The spraying device is provided inside or below the main body mounted on the rear part of the toilet bowl. In addition, the sterilized water ejected from the spray device gradually falls due to its own weight. Therefore, in order to land the sterilized water on the non-placed portion on the upper surface of the rim, it is desirable to eject the sterilized water from a high position. In the present invention, the second spouting portion for landing the sterilized water on the non-placed portion is arranged above the first spouting portion, so that the second spouting portion is more reliably removed from the non-placed portion on the upper surface of the rim. Bacterial water can be landed. On the other hand, in order to prevent the disinfectant water from landing on the placement portion, it is desirable to eject the disinfectant water from a low position. In the present invention, the first spouting portion for landing the disinfectant water on the mounting portion side in the bowl portion is arranged below the second spouting portion, so that the disinfecting water adheres to the mounting portion. Watering can be further suppressed.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the second water discharge portion is arranged inside the main body portion, and the first water discharge portion is arranged so as to project downward from the main body portion. It is a characteristic toilet device.

The second water discharge portion is desired to be clean because the disinfectant water is landed on the non-placed portion on the upper surface of the rim that the user may touch. According to this toilet device, by arranging the second spouting portion inside the main body portion, it is possible to prevent dirt from adhering to the second spouting portion and ensure the cleanliness of the second spouting portion. Further, by arranging the first spouting portion so as to protrude below the main body portion, the first spouting portion can be arranged at a low position, and the sterilized water is further suppressed from landing on the mounting portion. can do. Since the first water spouting portion is landed with the sterilized water on the placement portion side in the bowl portion which is unlikely to be touched by the user, cleanliness is less likely to be a problem than the second water spouting portion.

According to the aspect of the present invention, there is provided a toilet device capable of suppressing water leakage to the outside of the toilet bowl when a mist of disinfectant water is sprayed on the upper surface of the rim of the toilet bowl.

It is a perspective view which illustrates the toilet apparatus which concerns on embodiment. It is sectional drawing which illustrates a part of the toilet apparatus which concerns on embodiment. 3A and 3B are schematic views illustrating a part of the toilet device according to the embodiment. It is a block diagram which illustrates the composition of the main part of the toilet seat device which concerns on embodiment. 5 (a) to 5 (e) are a plan view and a perspective view illustrating the toilet device according to the embodiment. 6 (a) to 6 (c) are schematic views illustrating the spraying device according to the embodiment. It is sectional drawing which illustrates a part of the toilet apparatus which concerns on the modification of embodiment. 8 (a) to 8 (c) are perspective views illustrating another toilet device according to the embodiment. It is a flowchart illustrating the operation of the toilet seat device which concerns on embodiment. 10 (a) and 10 (b) are schematic views illustrating the operation of the toilet seat device according to the embodiment. It is sectional drawing which illustrates the operation in the premist mode of the toilet seat device which concerns on embodiment. It is a schematic diagram which illustrates the mist sprayed by the spraying apparatus which concerns on embodiment. It is a schematic diagram for demonstrating the straight-ahead state of a mist. It is sectional drawing which illustrates the operation in the premist mode of the toilet seat device which concerns on embodiment. 15 (a) to 15 (c) are schematic views for explaining a method of measuring an average water landing amount per unit area of mist directly landing on the upper region and the lower region of the non-cleaned region. 16 (a) and 16 (b) are cross-sectional views illustrating the front end side non-cleaning region of the toilet bowl according to the embodiment. 17 (a) and 17 (b) are cross-sectional views illustrating the operation of the toilet seat device in the premist mode and the automatic toilet lid opening mode. It is a timing chart which illustrates the operation in the premist mode of the toilet seat device which concerns on embodiment. 19 (a) and 19 (b) are plan views illustrating the operation of the toilet seat device according to the embodiment in the premist mode. 20 (a) and 20 (b) are cross-sectional views illustrating the operation of the toilet seat device according to the embodiment in the after mist mode or the manual mist mode. It is a flowchart which illustrates the operation in the aftermist mode of the toilet seat device which concerns on embodiment. It is a flowchart which illustrates another operation in the aftermist mode of the toilet seat apparatus which concerns on embodiment. It is a flowchart which illustrates another operation in the aftermist mode of the toilet seat apparatus which concerns on embodiment. 24 (a) and 24 (b) are cross-sectional views illustrating the operation of the toilet seat device according to the embodiment in the premist mode and the aftermist mode. 25 (a) and 25 (b) are cross-sectional views illustrating another operation of the toilet seat device according to the embodiment in the premist mode. 26 (a) and 26 (b) are plan views illustrating the toilet bowl and the toilet seat according to the embodiment. 27 (a) and 27 (b) are cross-sectional views illustrating the operation of the toilet seat device according to the embodiment in the after mist mode or the manual mist mode. 28 (a) and 28 (b) are cross-sectional views illustrating the operation of the toilet seat device according to the embodiment in the second step of the after mist mode or the manual mist mode. It is a top view which illustrates the toilet apparatus which concerns on embodiment. It is sectional drawing which illustrates the operation in the after mist mode or the manual mist mode of the toilet seat device which concerns on embodiment. 31 (a) and 31 (b) are perspective views illustrating the operation of the toilet seat device according to the embodiment in the after mist mode or the manual mist mode. It is a flowchart which illustrates the operation in the manual mist mode of the toilet seat device which concerns on embodiment. It is a flowchart which illustrates another operation in the manual mist mode of the toilet seat device which concerns on embodiment. 34 (a) and 34 (b) are perspective views illustrating the method for measuring the particle size according to the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view illustrating the toilet device according to the embodiment.
The toilet device 10 shown in FIG. 1 includes a Western-style sitting toilet (hereinafter simply referred to as a “toilet bowl” for convenience of explanation) 800 and a toilet seat device 100. The toilet bowl 800 has a concave bowl portion 801 that receives filth. The toilet seat device 100 is installed on the upper part of the toilet bowl 800.

The toilet seat device 100 has a casing 400 (main body portion), a seating portion 200 (toilet seat) on which the user sits, and a toilet lid 300. The seating portion 200 and the toilet lid 300 are pivotally supported with respect to the casing 400, respectively. The state of FIG. 1 is a state in which the seating portion 200 is closed (a state in which it is lowered) and a state in which the toilet lid 300 is in an open state (a state in which it is raised). When the toilet lid 300 is closed, it covers the seating surface of the seating portion 200 from above.

Inside the casing 400, there is a built-in body cleaning function unit that realizes cleaning of the human body local part (such as "buttocks") of the user sitting on the seating portion 200. Further, for example, the casing 400 is provided with a seating detection sensor 404 that detects that the user has sat on the seating portion 200. When the seating detection sensor 404 detects the user sitting on the seating portion 200, when the user operates the manual operation unit 500 such as a remote controller, the cleaning nozzle (hereinafter, simply referred to as "nozzle" for convenience of description). ) 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 represents a state in which the nozzle 473 has advanced into the bowl portion 801.

One or more spouts 474 are provided at the tip of the nozzle 473. Then, the nozzle 473 can inject water from the spout 474 provided at the tip thereof to wash the "buttocks" of the user sitting on the seating portion 200.
In the specification of the present application, each of "upper", "lower", "front", "rear", "left side" and "right side" is placed on the seating portion 200 with the back facing the open toilet lid 300. This is the direction seen from the sitting user.

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

Further, the toilet bowl 800 has a rim upper surface 806 located above the bowl portion 801. The rim upper surface 806 is the upper surface of the rim portion 805 and faces, for example, the back surface 204 of the closed seating portion 200.

3A and 3B are schematic views illustrating a part of the toilet device according to the embodiment.
FIG. 3A is a perspective view illustrating the toilet bowl 800, and FIG. 3B is a plan view illustrating the toilet bowl 800. The toilet bowl 800 has a spout 811 provided on the rim portion 805. The spout 811 discharges washing water for discharging filth (for example, excrement of the user) from the bowl portion 801 into the bowl portion 801.

For example, when the user operates the toilet bowl cleaning with a switch provided on the remote controller or the like, or when the user stands up from the seating portion 200, the toilet bowl cleaning that supplies the cleaning water from the spout 811 into the bowl portion 801. Is executed. As a result, the filth in the bowl portion 801 is discharged, and the surface of the bowl portion 801 is washed.

As shown by the arrow A5 shown in FIG. 3A, the water discharge port 811 discharges the washing water toward the rear. The washing water discharged from the spout 811 flows over the shelf-shaped portion 805B provided along the rim portion 805, and as shown in FIG. 3B, swirls the swirling flow SF swirling in the bowl portion 801. Form.

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

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

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

FIG. 4 is a block diagram illustrating a configuration of a main part of the toilet seat device according to the embodiment.
Note that FIG. 4 also shows the main components of the water channel system and the electrical system.
The toilet seat device 100 includes a solenoid valve 431, a sterilization device 450, a switching valve 472, a spray device 481, a nozzle motor 476, a nozzle 473, a nozzle cleaning chamber 478, and flow paths 110 to 113. These are arranged, for example, in the casing 400.

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

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

A switching valve 472 is provided on the flow path 110 and downstream of the sterilizing device 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 into a flow path 111 that guides water to the nozzle 473, a flow path 112 that guides water to the nozzle cleaning chamber 478, and a flow path 113 that guides water to the spray device 481 by the switching valve 472. The switching valve 472 controls the opening and closing of each of the flow path 111, the flow path 112, and the flow path 113 based on the 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. Further, the switching valve 472 switches the flow rate of the water supplied downstream thereof.

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

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

The spraying device 481 makes tap water or sterilized water generated by the sterilizer 450 into a mist. The spraying device 481 sprays mist M (sterilized water mist or tap water mist) onto the bowl portion 801 and the rim portion 805, the seating portion 200, and the like. In other words, the spraying device 481 makes the mist of sterilized water or the mist of tap water land on the bowl portion 801 and the rim portion 805, the seating portion 200, and the like. In the specification of the present application, "water landing" means that water (sterilized water or tap water) adheres to the surface of an object. In particular, the term "direct water landing" means that water (sterilized water or fine particles p of tap water) arrives at the surface of an object from the air.

Further, inside the casing 400, a toilet seat motor 511 (rotating device), a toilet lid motor 512 (rotating device), a blower device 513, and a warm air heater 514 are provided.
The toilet seat motor 511 electrically rotates the seating portion 200 to open and close based on a command from the control device 405. The toilet lid motor 512 electrically rotates the toilet lid 300 to open and close based on a command from the control device 405.

The blower 513 is, for example, a fan provided inside the casing 400. The blower device 513 operates based on a command from the control device 405. For example, the blades rotate with the rotation of the motor of the blower 513. As a result, the blower device 513 can blow air toward the inside of the toilet bowl 800 (for example, the inside of the bowl portion 801). Further, the blower device 513 may blow air to the local part of the user sitting on the seating portion 200. The hot air heater 514 heats the air sent to the outside of the casing 400 by the blower device 513. As a result, warm air can be sent to the local part of the user to dry the local part.

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

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. The control device 405 has an electromagnetic valve 431, a sterilization device 450, based on the detection information of the detection sensor 402 (for example, the human body detection sensor 403 or the seating detection sensor 404) that detects the user, or the operation information of the manual operation unit 500. It controls a switching valve 472, a nozzle motor 476, a spray device 481, a blower device 513, a hot air heater 514, a toilet seat heater 515, a toilet seat motor 511, and a toilet lid motor 512.

The manual operation unit 500 is an operation unit for the user to spray the disinfectant water at an arbitrary timing, for example. For example, the manual operation unit 500 is a remote controller having a switch, a button, or the like, and 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. As a result, the user can spray the sterilized water by operating the manual operation unit 500.
Further, the manual operation unit 500 may have not only the spray of disinfectant water but also switches and buttons 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 the seated state (presence / absence of seating) of the user on the seating portion 200. The seating detection sensor 404 detects the user's seating and leaving. As the seating detection sensor 404, a microwave sensor, a distance measuring sensor (infrared projection type sensor), an ultrasonic sensor, a tact switch, a capacitance switch (touch sensor), or a strain sensor can be used. In this example, the seating detection sensor 404 uses a distance measuring sensor provided in the casing 400.

When contact type sensors such as a tact switch, an electrostatic sensor and a strain sensor are used, these contact type sensors are provided in the seating portion 200. When the user sits on the seating portion 200, the tact switch is pressed by the weight of the user. Alternatively, the user comes into contact with the electrostatic sensor. Alternatively, pressure is applied to the strain sensor by the weight of the user. The seating of the user can be detected by the electric signals from these sensors.

The human body detection sensor 403 can detect a user who is in front of the toilet bowl 800, that is, a user who is located at a position forwardly separated from the seating portion 200. That is, the human body detection sensor 403 can detect a user who has entered the toilet room and is approaching the seat 200. As such a human body detection sensor, for example, a focal light sensor, a microwave sensor, an ultrasonic sensor, or a distance measuring sensor (infrared projection type sensor) can be used. In this example, the pyroelectric sensor provided in the casing is used for the human body detection sensor 403. Further, the human body detection sensor 403 detects a user immediately after opening the door of the toilet room and a user immediately before entering the toilet room, that is, a user existing in front of the door trying to enter the toilet room. You may. For example, when a microwave sensor is used, it is possible to detect the presence of a user through the door of the toilet room.

The control device 405 receives the detection information of the human body detection sensor 403 (signal indicating the presence or absence of the user) and the detection information of the seating detection sensor 404 (signal indicating the presence or absence of the user), and the received detection. Based on the information, the operation of each part of the toilet seat device 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, for example, an operation mode in which the mist of sterilized water is automatically sprayed based on the detection information of the detection sensor 402 after the user's toilet device 10 is used. The premist mode is, for example, an operation mode in which a mist of sterilized water or tap water is automatically sprayed based on the detection information of the detection sensor 402 before the user's toilet device 10 is used. The manual mist mode is an operation mode for spraying the mist of sterilized water based on the operation information of the manual operation unit 500.

5 (a) to 5 (e) are a plan view and a perspective view illustrating the toilet device according to the embodiment.
FIG. 5A shows a state in which a part of the toilet device 10 is viewed from the front.
FIG. 5B is an enlarged representation of a part of FIG. 5A. In FIG. 5B, a part of the casing 400 located in front of the spraying device 481 is omitted for the sake of visibility.
The spray device 481, the nozzle damper 479, and the blower damper 516 are located on the rear upper 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.

The nozzle damper 479 is rotatably supported with respect to the casing 400. The nozzle 473 is located behind the nozzle damper 479 when it is retracted inside the casing 400. At the time of cleaning the human body local part or the like, the nozzle 473 abuts on the nozzle damper 479, rotates and opens the nozzle damper 479, and advances from the inside of the casing 400.

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

5 (c) shows a state in which the blower device 513 has stopped operating, and FIGS. 5 (d) and 5 (e) show that the blower device 513 is activated and blows air toward the inside of the bowl portion 801. Indicates the state.
As shown in FIG. 5C, the blower damper 516 is closed when the blower is stopped.
As shown in FIG. 5D, when the blower device 513 is activated, the blower damper 516 is rotated and opened by the pressure (wind pressure) of the air sent from the blower device 513. As a result, the blower device 513 blows air from the upper rear portion in the bowl portion 801 toward the lower front portion in the bowl portion 801 as shown by the arrow A1.
In the state of FIG. 5 (e), the amount of air sent by the blower device 513 is larger (or the wind speed is higher) than in the state of FIG. 5 (d). In this case, the blower damper 516 rotates further and opens as compared with the state of FIG. 5D. As a result, the blower device 513 blows air from the rear upper portion in the bowl portion 801 toward the front upper portion in the bowl portion 801 as shown by the arrow A2, for example.

In this way, the direction of the wind sent from the blower device 513 is changed by the blower damper 516. In other words, the blower device 513 can control the blower direction by the air volume (wind speed). By placing the mist sprayed from the spray device 481 on the airflow generated by the air blown from the blower device 513, the range where the mist lands and the amount of mist landing in each range (sterilized water that lands on each range). Alternatively, the amount of tap water) may be controlled.

6 (a) to 6 (c) are schematic views illustrating the spraying device according to the embodiment.
FIG. 6A is a perspective view of the spraying device 481, and FIG. 6B is a side view of the spraying 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 driving force of the rotation 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 sterilizing device 450) is supplied to the upper surface of the disk 481b. During the rotation of the disk 481b, the water W is supplied, so that the spraying device 481 sprays the water W in the form of a mist.

FIG. 6C is an enlarged view of a part of the disc 481b as viewed from above. The water W dropped on the upper surface of the rotating disk 481b spreads like a film on the disk 481b by centrifugal force and is radiated from the disk 481b. At this time, the water W splits from the vicinity of the edge of the disk 481b in the form of a film, or splits after becoming thread-like, and then becomes fine particles p (mist). The particle size of the mist (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 rotation speed, the smaller the particle size of the mist. For example, low-speed rotation with a rotation speed of about 1000 (rotation per minute: rpm), medium-speed rotation with a rotation speed of about 10,000 rpm, or high-speed rotation with a rotation speed of about 20,000 rpm is appropriately used to obtain a desired particle size. .. Further, the particle size of the mist can be controlled by adjusting the flow rate of the water W supplied from the water supply port 481c to the spray device 481.

In the specification of the present application, the particle size is the particle size of the fine particles p existing in the air before landing on the toilet device 10, and is, for example, the Sauter mean diameter (total volume / total surface area). The method for measuring the "particle size" in the present specification will be described later with reference to FIG. 34. Further, the mist means a range in which the particle size is 10 micrometers (μm) or more and 300 μm or less. If the particle size of the mist is less than 10 μm, a long time is required to wet the target portions such as the bowl portion 801 and the rim portion 805 and the seating portion 200. Further, when disinfecting water containing hypochlorous acid is used, if the particle size of the mist is less than 10 μm, the concentration of hypochlorous acid in the mist tends to be attenuated, and the disinfection performance tends to deteriorate. On the other hand, if the particle size 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 area. Further, in the following description, the large particle size mist is a mist having a particle size in the range of 100 μm or more and 300 μm or less, preferably 150 μm or more and 300 μm or less, and the medium particle size mist is a mist having a particle size of 50 μm or more and 200 μm or less. Hereinafter, the mist is preferably in the range of 60 μm or more and 150 μm or less, and the small particle size mist is a mist having a particle size of 10 μm or more and 100 μm or less, preferably 10 μm or more and 60 μm or less.

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

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

The upper surface of the disc 481b is tilted from the horizontal, and the disc 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 into the bowl portion 801. This makes it possible to prevent dirt Y such as urine from adhering to the spray device 481 without impairing the design and cleanability of the toilet device 10. The shape of the disc 481b may be a flat disk shape, irregularities may be appropriately provided, or a conical shape or a sphere may be used. Thereby, the spraying direction of the mist, the particle size of the mist, and the like can be adjusted.

The spray device 481 is arranged below a part of the seating portion 200 in a state where the toilet seat device 100 is installed on the upper part of the toilet bowl 800 (see FIG. 2), and sprays mist toward the inside of the toilet bowl 800.

In the embodiment, the spraying device is not limited to the device described with respect to FIGS. 6 and 7. For example, an ultrasonic atomizer may be used as the spray device. The ultrasonic atomizer irradiates the liquid with ultrasonic waves to make the liquid into a mist. Further, for example, a two-fluid nozzle may be used as the spraying device. The two-fluid nozzle ejects both gas and liquid to make the liquid mist. However, when the devices described with respect to FIGS. 6 and 7 are used, there is an advantage that the spray range can be easily controlled by the blower device 513. In addition, the risk of clogging is low, and ancillary devices such as a compressor are unnecessary.

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

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

8 (b) and 8 (c) show the periphery of the nozzle damper 479 and the mist damper 482 in an enlarged manner. FIG. 8B shows a state in which the nozzle 473 is retracted into the casing 400. At this time, the nozzle damper 479 is in a closed state and covers the front of the nozzle 473. Further, the mist damper 482 is in a closed state and covers the front of the slit S.

When the spraying device 481 is not used, the spraying device 481 is concealed from the bowl portion 801 side by the mist damper 482 as shown in FIG. 8 (b). This makes it possible to further prevent urine and dirt from adhering to the spraying device 481.

FIG. 8C shows a state in which the nozzle 473 advances forward and the nozzle damper 479 is rotated. The forward advance distance of the nozzle 473 at this time may be shorter than the forward advance distance at the time of washing the human body locally. For example, the tip of the nozzle 473 is in contact with the nozzle damper 479. Further, in FIG. 8C, the mist damper 482 rotates together with the nozzle damper 479 and is open. The mist damper 482 may control the direction and range in which the mist is sprayed.

FIG. 9 is a flowchart illustrating the operation of the toilet seat device according to the embodiment.
10 (a) and 10 (b) are schematic views illustrating the operation of the toilet seat device according to the embodiment.
FIG. 10B shows the target sites (P1 to P4) on which the mist of sterilized water or tap water lands. FIG. 10A shows an example of the amount of water landed on each target site (the amount of water landed per unit area) in each mist mode in four stages of “large”, “medium”, “small”, and “minimal”. ..

The control device 405 automatically controls the spray device 481 when the detection sensor 402 changes from the state in which the user is not detected to the state in which the user is detected, and the control device 405 automatically controls the mist or sterilization of tap water. It is possible to execute a premist mode in which water mist is sprayed into the bowl portion 801.

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

As described above, the mist sprayed from the spraying device 481 in the premist mode lands not only on the cleaning region 801A but also on the non-cleaning region 801B, and forms a water film on the cleaning region 801A and the non-cleaning region 801B. As a result, it is possible to suppress the adhesion and adhesion of filth in a wide range of the toilet bowl 800 including the non-cleaning area 801B.

The control device 405 automatically controls the spray device 481 when the detection sensor 402 changes from the state where the user is detected to the state where the user is not detected, and the mist of the disinfectant water is increased. It is possible to execute an aftermist mode in which the inside of the toilet bowl 800 and the seating portion 200 are sprayed.

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

In this way, by executing the aftermist mode, the sterilized water can be automatically landed in the toilet bowl 800 and in the seating portion 200 after the user's toilet seat device 100 is used. As a result, it is possible to automatically suppress the generation of bacteria and dirt not only in the toilet bowl 800 but also in a wide range such as the seating portion 200.

The control device 405 can execute a manual mist mode in which the spray device 481 is controlled to spray the mist of the disinfectant water into the toilet bowl 800 and the seating portion 200 when the user operates the manual operation unit 500. be.

For example, as shown in FIG. 9, when the user operates the manual operation unit 500 while the user is in the toilet room (for example, after executing the premist mode), a signal (operation information) corresponding to the operation is transmitted to the control device 405. Will be 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, after, and when cleaning the toilet seat device 100. In the manual mist mode, the control device 405 causes the disinfectant device 450 to generate disinfectant water, sprays the spray device 481 with the mist of the disinfectant water, and causes the mist to land on the target site. The target sites in the manual mist mode are the target site P1, the target site P2, the target site P3, and the target site P4, as shown in FIGS. 10 (a) and 10 (b).

In this way, by landing the disinfectant water in the toilet bowl 800 and the seating portion 200 at the timing when the manual operation unit 500 is operated by the manual mist mode, not only the inside of the toilet bowl 800 but also the seating portion 200 is included. It is possible to suppress the generation of bacteria and stains in a wide range. In addition, the user can remove bacteria and dirt generated on the seating portion 200 by wiping off the mist of the disinfecting water that has landed on the seating portion 200. For example, fixed stains that are difficult to control in the aftermist mode can be sterilized by wiping the sterilized water that has landed on it with toilet paper or the like. Further, for example, a user who is concerned about the dirt on the seating portion 200 before using the toilet seat device 100 can sterilize the seating portion 200 by the manual mist mode. Since the sterilization is performed based on the user's own operation, the user's sense of security and satisfaction can be enhanced.

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

In order to suppress the adhesion of dirt on the bowl portion 801 it is preferable to land a large amount of mist so that a water film is also formed on the non-cleaning region 801B. Therefore, a method of operating the blower device 513 to generate an air flow in the bowl portion 801 and delivering the mist to the non-cleaning region 801B by the air flow can be considered. However, in this case, the mist on the airflow may also land on the seating portion 200 and the upper surface of the rim 806. Then, when the user sits on the seat 200 or when the seat 200 is rotated by hand, the user's buttocks or hands may touch the mist that has landed on the seat 200, causing discomfort. There is. Further, since the rim upper surface 806 is formed substantially horizontally, the mist that has landed on the rim upper surface 806 may drip out of the toilet bowl 800.

Therefore, in the premist mode, the control device 405 does not operate the blower device 513 that generates an updraft in the bowl portion 801. Further, in the premist mode, the control device 405 sprays the mist from the spraying device 481 so that the mist landing on the rim upper surface 806 does not drip out of the toilet bowl 800 and directly landing the mist on the front end side non-cleaning region 801F. The speed of the mist sprayed by the spraying device 481 is controlled so that the mist reached the front end side non-cleaning area 801F while maintaining the straight running state.

As a result, while a large amount of mist is landed on the non-cleaning region 801B, the mist does not float on the updraft generated by the blower device 513, so that the mist landing on the rim upper surface 806 or the seating portion 200. The amount of water can be suppressed. As a result, it is possible to prevent the mist that has landed on the upper surface of the rim 806 from dripping out of the toilet bowl 800. Further, it is possible to prevent the seating portion 200 from getting wet by the mist, and when the user sits on the seating portion 200 or when the seating portion 200 is rotated by hand, the user's buttocks and hands become the seating portion 200. It is possible to suppress contact with the mist that has landed on the water.

In the specification of the present application, the "water-landed mist" includes water droplets and a water film formed by agglomeration or the like after the mist has landed on the water.

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

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

FIG. 12 is a schematic diagram illustrating the mist sprayed by the spraying device according to the embodiment.
The particle size of the mist sprayed from the spraying device 481 has a distribution. For example, as shown in FIG. 12, from the spraying device 481, a small particle size mist M1 (tap water or disinfectant water fine particles p1) and a medium particle size or large particle size mist M2 (tap water or disinfectant) are used. Water fine particles p2) and are sprayed. Since the fine particles p2 of the mist M2 have a large weight, they tend to move horizontally or downward. On the other hand, since the fine particles p1 of the mist M1 have a small weight, they may travel upward due to the influence of the air flow.

Therefore, as shown in FIG. 11, the amount of mist landing on the front end side non-cleaning region 801F also has a distribution. The volume zone BZ is the portion of the front end side non-cleaning region 801F where the most mist directly lands. In the embodiment, the control device 405 controls the spray device 481 so that the mist reaching the volume zone BZ maintains a straight running state.

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

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

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

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

When the water landing height h2 is the same as the height h1, it is determined that the mist sprayed from the spraying device 481 has reached the sprayed object OB while maintaining the straight-ahead state. The range in which the water landing height h2 is the same as the height h1 includes the case where the difference between the water landing height h2 and the height h1 is within 20 mm.

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

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

The rounded portion 823 is located in the vicinity of the upper surface surface of the rim 806. Therefore, when the spraying direction Ds in which the spraying device 481 sprays the mist is such that a large amount of mist lands on the rounded portion 823, the rim upper surface 806 is likely to get wet. In this case, the mist that has landed on the upper surface of the rim 806 may drip out of the toilet bowl 800. Further, since the rounded portion 823 has a downward inclination toward the inside of the bowl portion 801 the mist that reaches the rounded portion 823 is easily reflected by the rounded portion 823 and scattered toward the rim upper surface 806 side. In particular, if the speed of the mist is increased so that the mist reaches the non-cleaning region 801B while maintaining the straight traveling state, the mist tends to scatter.

On the other hand, in the embodiment, in the spraying direction Ds in which the spraying device 481 sprays the mist, the mist that is sprayed from the spraying device 481 and reaches the front end side non-cleaning region 801F while maintaining the straight-ahead state is from the rounded portion 823. Is also set to land downward. As a result, the amount of mist landing on the rim upper surface 806 located above the rounded portion 823 can be reduced. Further, even when the speed of the mist is increased in order to maintain the straight traveling state, it is possible to suppress the mist from scattering to the rim upper surface 806 side.

Further, in the example shown in FIG. 14, the mist guide portion 824 has a downward inclination toward the outside of the bowl portion 801 and guides the mist that has reached the front end side non-cleaning region 801F downward. For example, the mist that has reached the mist guide portion 824 is reflected downward. As a result, even when the speed of the mist is increased so that the mist reaches the front end side non-cleaning area 801F while maintaining the straight traveling state, it is possible to suppress the mist from scattering to the rim upper surface 806 side. ..

Further, a spraying portion (for example, a disc 481b) for spraying mist is provided below a part of the seating portion 200. The spraying direction Ds on which the spraying device 481 sprays the mist is set diagonally downward toward the front end side non-cleaning region 801F. As a result, the mist that has reached the front end side non-cleaning region 801F is likely to be scattered downward. That is, the mist is likely to be reflected downward in the front end side non-cleaning region 801F. Therefore, even when the speed of the mist is increased so that the mist reaches the front end side non-cleaning region 801F while maintaining the straight traveling state, it is possible to suppress the mist from scattering to the rim upper surface 806 side.

Further, the spraying device 481 is arranged so that the virtual line segment L2 (see FIG. 11) connecting the spraying portion (for example, the disk 481b) and the front end side non-cleaning region 801F does not intersect with the seating portion 200. The spray direction Ds is set so that the mist that reaches the front end side non-cleaning region 801F is sprayed along the line segment L2 while maintaining the straight-ahead state. As a result, the mist can be landed on the non-cleaning region 801B while suppressing the seating portion 200 from getting wet by the mist.

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

Specifically, for example, in the premist mode, the control device 405 sprays the mist so that the particle size of the mist directly landing on the lower region 822 is larger than the particle size of the mist directly landing on the upper region 821. To control. By increasing the particle size of the mist that directly lands on the lower region 822, the average amount of water landing per unit area of the mist that directly lands on the lower region 822 can be increased. Further, by reducing the particle size of the mist that directly lands on the upper region 821, the average amount of water landing per unit area of the mist that directly lands on the lower region 822 can be reduced.

By relatively increasing the average amount of water landing per unit area of the mist directly landing on the lower region 822, it is possible to suppress the adhesion and adhesion of dirt in the lower region 822. On the other hand, by relatively reducing the average amount of water landing per unit area of the mist directly landing on the upper region 821, the amount of mist landing on the rim upper surface 806 or the seating portion 200 can be suppressed. For example, it is possible to prevent the mist that has reached the upper region 821 from scattering on the rim upper surface 806 or the seating portion 200. As a result, it is possible to prevent the mist that has landed on the upper surface of the rim 806 from dripping out of the toilet bowl. Further, it is possible to prevent the seating portion 200 from getting wet by the mist, and when the user sits on the seating portion 200 or when the seating portion 200 is rotated by hand, the user's buttocks and hands become the seating portion 200. It is possible to suppress contact with the mist that has landed on the water.

15 (a) to 15 (c) are schematic views for explaining a method of measuring an average water landing amount per unit area of mist directly landing on the upper region and the lower region of the non-cleaned region.
First, the first measurement point SU including the upper region 821 of the front end side non-cleaning region 801F and the second measurement point SL including the lower region 822 of the front end side non-cleaning region 801F are set. The left-right range of the first measurement point SU and the second measurement point SL is a range of 100 mm in width centered on the tip of the non-cleaning region 801B, respectively. Further, the vertical range of the first measurement point SU is substantially the same as the vertical range of the upper region 821, and the vertical range of the second measurement point SL is substantially the same as the vertical range of the lower region 822. It is the same.

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

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

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

Instead of wiping each measurement point with a kim towel, spraying may be performed with the kim towel attached to each measurement point so that the kim towel absorbs water. For example, the Kim towel originally formed into four folds is unfolded, and the unfolded Kim towel is cut into a shape along each measurement point. Attach the cut Kim towel to each measurement point.

Further, in the above example, the rounded portion 823 and the mist guide portion 824 are designated as the upper region 821, and the lower region below the lower end of the mist guide portion 824 is designated as the lower region 822. Not limited to this, the boundary between the upper region 821 and the lower region 822 may be the center in the vertical direction of the front end side non-cleaning region 801F. That is, the upper region 821 may be above the center of the front end side non-cleaning region 801F in the vertical direction, and the lower region 822 may be below the center of the front end side non-cleaning region 801F in the vertical direction.

16 (a) and 16 (b) are cross-sectional views illustrating the front end side non-cleaning region of the toilet bowl according to the embodiment.
As shown in FIG. 16 (a), the upper region 821 has an inclined surface (mist guide portion 824) inclined downward toward the outside of the bowl portion 801. As already mentioned, the mist guide portion 824 (inclined surface of the upper region 821) guides the mist downward.

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

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

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

17 (a) and 17 (b) are cross-sectional views illustrating the operation of the toilet seat device in the premist mode and the automatic toilet lid opening mode.
The control device 405 automatically controls the toilet lid motor 512 to close the toilet lid 300 when the detection sensor 402 changes from the state in which the user is not detected to the state in which the user is detected. It is possible to execute the automatic toilet lid open mode from the state to the open state.

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

For example, when the auto toilet lid opening mode is executed and the toilet lid 300 is opened as shown by the arrows A6 in FIGS. 17 (a) and 17 (b), the toilet lid is in the bowl portion 801 and around the bowl portion 801. An updraft f1 is generated with the opening operation of the 300. In the example of FIG. 17A, a part of the mist M sprayed by the premist mode rides on the updraft f1 and rises above the bowl portion 801. In this case, the mist that has risen above the bowl portion 801 will land on the seating portion 200 and the rim upper surface 806.

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

As a result, even if the updraft f1 is generated by the automatic toilet lid opening mode, the mist can reach the non-cleaning region 801B while suppressing the mist from landing on the rim upper surface 806 and the seating portion 200. Therefore, it is possible to prevent the mist that has landed on the upper surface of the rim 806 from dripping out of the toilet bowl 800. Further, it is possible to prevent the seating portion 200 from getting wet by the mist, and when the user sits on the seating portion 200 or when the seating portion 200 is rotated by hand, the user's buttocks and hands become the seating portion 200. It is possible to suppress contact with the mist that has landed on the water.

The range in which the mist does not rise above the bowl portion 801 due to the updraft f1 is not only when all the mist does not rise above the bowl portion 801 but also to the extent that it does not cause discomfort to the user. It may include the case where a small amount of mist rises above the bowl portion 801.

FIG. 18 is a timing chart illustrating the operation of the toilet seat device according to the embodiment in the premist mode.
19 (a) and 19 (b) are plan views illustrating the operation of the toilet seat device according to the embodiment in the premist mode.
As shown in FIG. 18, for example, at time T1, the entry of the user is detected by the entry detection means such as the human body detection sensor 403. Then, the control device 405 starts executing the automatic toilet lid opening mode and the premist mode. As a result, the closed toilet lid 300 begins to open, and spraying of the mist into the bowl portion 801 is started. The opening operation of the toilet lid 300 is continued from the time T1 to the time T4, and the toilet lid 300 is fully opened at the time T4.

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

FIG. 19A illustrates a range in which the mist sprayed from the spraying device 481 lands on the water between the time T2 and the time T3. From time T2 to time T3, the control device 405 controls the spray device 481 so that the mist lands on the non-cleaning area 801B.

After that, between the time T3 and the time T4, the control device 405 controls the spray device 481 so that the mist landed on the cleaning region 801A again.

Then, the auto toilet lid opening mode and the premist mode are completed by the time T5 after the time T4. For example, at time T5, the user sits on the seat 200.

The magnitude of the updraft f1 generated by the opening operation of the toilet lid 300 in the automatic toilet lid opening mode becomes the largest immediately after the toilet lid 300 is opened from the closed state (that is, the time when the toilet lid 300 starts to open). Cheap. On the other hand, in the embodiment, the control device 405 starts spraying mist toward the front end side non-cleaning region 801F after the execution of the automatic toilet lid opening mode is started. That is, as shown in FIG. 18, the mist spraying to the front end side non-cleaning region 801F starts at the time T2 after the time T1 when the automatic toilet lid opening mode starts. Thereby, it is possible to further suppress the mist from rising above the bowl portion 801 due to the updraft f1.

Further, the size of the updraft f1 generated by the opening operation of the toilet lid 300 in the automatic toilet lid opening mode tends to increase when the speed at which the toilet lid 300 opens is high. On the other hand, as shown in FIG. 18, in the control device 405, the speed at which the toilet lid 300 opens in the first time zone (from time T1 to time T2) immediately after the start of execution of the automatic toilet lid opening mode is the first. The toilet lid motor 512 is controlled so as to be lower than the opening speed of the toilet lid 300 in the second time zone (time T2 to time T3) after the time zone. As a result, the updraft f1 can be reduced immediately after the start of the automatic toilet lid opening mode. Therefore, it is possible to further suppress the mist from rising above the bowl portion 801 due to the updraft f1 in the automatic stool lid open mode.

Further, in the control device 405, the mist lands on the area other than the front end side non-cleaning area 801F in the third time zone (from time T1 to time T2) immediately after the start of the execution of the automatic toilet lid opening mode, and the third time zone. The spray device 481 is controlled so that the mist lands on the front end side non-cleaning region 801F in the subsequent fourth time zone (time T2 to time T3). As a result, it is possible to further suppress the mist from rising above the bowl portion 801 due to the updraft f1 in the automatic stool lid open mode.

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

For example, in the after mist mode or the manual mist mode, some mist is radiated from the spray device 481 toward the non-cleaning area 801B. Further, the mist having a relatively large particle size lands on the cleaning region 801A. The mist having a relatively small particle size is landed on the upper surface of the rim 806, the seating portion 200, the toilet lid 300, and the like by the updraft U1. As a result, it is possible to sterilize every corner of the toilet device 10 including the non-cleaning area 801B, the rim upper surface 806, the seating portion 200, the toilet lid 300, and the like.

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

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

For example, in the first mode, the control device 405 stops the blower 513 or controls the particle size of the mist so that the mist lands only in the toilet bowl 800 (cleaning area 801A and non-cleaning area 801B). Or something. In the first mode, by spraying the mist of sterilized water into the toilet bowl 800, it is possible to suppress the generation of bacteria and dirt in the toilet bowl 800. Further, the scale component contained in the mist landed in the toilet bowl 800 is washed away by the washing water flowing in the toilet bowl 800. Therefore, by the first mode of spraying mist only in the toilet bowl 800, the generation of bacteria and stains in the toilet bowl 800 is suppressed, and the visible scale stains caused by the scale component are 806 on the upper surface of the rim and the seating portion 200. , It is possible to suppress the occurrence on the toilet lid 300 and the like.

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

Then, in the after mist mode, the control device 405 executes either the first mode or the second mode, so that the frequency of mist adhering to the seating portion 200 is lower than in the case where the second mode is executed every time. can do. As a result, it is possible to prolong the period until the scale deposited by the evaporation of the attached mist grows into visible scale stains. Therefore, it is possible to prevent the generation of visible scale stains in a short period of time in areas where washing water does not flow, such as the seating portion 200, the toilet lid 300, and the rim upper surface 806.

Regardless of which of the first and second modes is executed in the after mist mode, the mist of disinfectant water is sprayed into the toilet bowl 800, which is prone to stains, so that it can be used by executing the after mist mode. The frequency of cleaning by a person can be surely reduced. Further, since the seating portion 200 is a portion where stains are less likely to occur than in the toilet bowl 800, visible stains are less likely to occur even if the mist of sterilized water is not sprayed on the seating portion 200 each time.

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

FIG. 21 is a flowchart illustrating the operation of the toilet seat device according to the embodiment in the aftermist mode.
The aftermist mode is not executed while the user is in the toilet room (step S101: No). When the user leaves the toilet room and the detection sensor 402 detects the user and does not detect the user (step S101: Yes), the control device 405 sets the seating portion 200 and the flight. The lid 300 is closed and the aftermist mode is started.

At this time, the control device 405 automatically determines whether to execute the first mode or the second mode of the aftermist mode (step S102). As a result, the user does not have to select either the first mode or the second mode each time, so that the burden on the user can be reduced.

For example, in step S102, the control device 405 determines that the execution frequency of the second mode is lower than the execution frequency of the first mode. Since the execution frequency of the second mode is low, the amount of mist containing the scale component adhering to the seating portion 200 can be reduced. Therefore, it is possible to prolong the period until the scale precipitates and grows into visible scale stains.

More specifically, for example, when the control device 405 has elapsed a predetermined time from the execution of the previous second mode, or has executed the first mode a predetermined number of times after the previous execution of the second mode (step S102: Yes), the second mode is executed again (step S103), and the aftermist mode ends. As a result, since the second mode is periodically executed, it is possible to suppress the generation of visible water stains in a short period of time and the generation of bacteria and stains due to the dirt.

On the other hand, when the control device 405 has not elapsed a predetermined time since the previous execution of the second mode, or has not executed the first mode a predetermined number of times after the previous execution of the second mode (step S102: No. ), The first mode is executed (step S104), and the aftermist mode ends. The predetermined time and the predetermined number of times in step S102 may be appropriately set so that water stains do not occur in a short period of time in consideration of the concentration of the scale component contained in tap water and the amount of mist sprayed.

FIG. 22 is a flowchart illustrating another operation of the toilet seat device according to the embodiment in the aftermist mode.
In the aftermist mode, the control device 405 may determine whether to execute the first mode or the second mode based on the user's manual selection. For example, the manual operation unit 500 is provided with a switch or a button for the user to select whether to execute the first mode or the second mode.

The user performs an input operation for selecting either the first mode or the second mode in the manual operation unit 500. Then, the control device 405 receives information indicating which mode the user has selected (step S201).

When the user selects the first mode in the manual operation unit 500 and the detection sensor detects the user leaving the room (step S202: Yes), the control device 405 executes the first mode (step S203). The aftermist mode ends. If the user's exit is not detected, the aftermist mode is not executed (step S202: No).
When the user selects the second mode in the manual operation unit 500 and the detection sensor detects the user leaving the room (step S204: Yes), the control device 405 executes the second mode (step S205). The aftermist mode ends. If the user's exit is not detected, the aftermist mode is not executed (step S204: No).

As described above, in the aftermist mode, the control device 405 executes either the first mode or the second mode based on the user's selection in the manual operation unit 500. That is, the user can set in advance whether to execute the first mode or the second mode by operating the manual operation unit 500.

For example, if the setting is not changed, the control device 405 will execute either the first mode or the second mode each time in the aftermist mode. The concentration of scale components contained in tap water varies from region to region. In areas where the concentration of scale components is low, even if the second mode of spraying mist on the seating portion 200 is executed every time, it takes a long time until visible scale stains due to the scale components are generated. In such an area, by executing the second mode in the aftermist mode, it is possible to suppress the generation of bacteria and dirt due to filth and reduce the frequency of cleaning. On the other hand, in an area where the concentration of the scale component is high, when the second mode of spraying the mist on the seating portion 200 is executed, visible water stains due to the scale component are likely to occur in a short period of time. In such an area, it is possible to reduce the frequency of cleaning by not executing the second mode of spraying the mist on the seating portion 200. By selecting whether the user executes the first mode or the second mode by the manual operation unit 500, the frequency of cleaning can be determined in both areas where the concentration of scale components contained in tap water is high and in areas where the concentration is low. Can be lowered.

Further, the manual operation unit 500 may be provided with a switch or a button for the user to select at least one of the execution frequency of the first mode and the execution frequency of the second mode. For example, when the second mode is executed when a predetermined time has elapsed from the previous execution of the second mode, the user can select the predetermined time in the manual operation unit 500. Further, for example, when the second mode is executed when the first mode is executed a predetermined number of times after the previous execution of the second mode, the user can select the predetermined number of times in the manual operation unit 500. The control device 405 executes at least one of the first mode and the second mode based on the user's selection (set frequency) in the manual operation unit 500. As a result, the execution frequency of the first mode or the execution frequency of the second mode is selected so that the frequency of cleaning is reduced according to the concentration of the scale component contained in the tap water in the area where the toilet seat device 100 is used. can do.

FIG. 23 is a flowchart illustrating another operation of the toilet seat device according to the embodiment in the aftermist mode.
In the example shown in FIG. 23, the aftermist mode is controlled so that the mist of the disinfected water is sprayed only into the toilet bowl 800. In other words, the first mode described above is executed every time. FIG. 23 also illustrates the operation in the manual mist mode. In this example, the manual mist mode sprays a mist of sterile water into the toilet bowl 800 and into the seat 200, similar to the examples described with respect to FIGS. 9 and 20.

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

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

Since the manual mist mode is a mode in which the user wipes off the mist with paper or the like, the execution frequency of the manual mist mode tends to be lower than the execution frequency of the after mist mode. Therefore, as shown in the example shown in FIG. 23, in the after mist mode, the mist is sprayed only in the toilet bowl 800, and in the manual mist mode, the mist is sprayed in the toilet bowl 800 and the seating portion 200, so that the seating portion The frequency of mist adhering to 200 can be reduced. As a result, it is possible to prolong the period until the scale component deposited by the evaporation of the attached mist grows into a visible scale stain. Therefore, it is possible to prevent the generation of visible water stains in a short period of time in a region such as the seating portion 200 where the washing water does not flow.

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

After that, when the user leaves the toilet room, the aftermist mode is executed. As shown in FIG. 24 (b), in the after mist mode, the mist of sterilized water is landed on the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B in the premist mode. As a result, the aftermist mode flushes the water droplet WD1 or the water film WF1 by increasing the volume of the water droplet WD1 or the water film WF1. That is, as the volume increases and the weight increases, the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B flows down into the cleaning region 801A.

The mist sprayed in the premist mode stays in the washed area 801A and the non-washed area 801B, and the water droplet WD1 or the water film WF1 is not washed away until, for example, the after mist mode is executed. As a result, it is possible to further suppress the adhesion and adhesion of filth as compared with the case where the inside of the bowl portion 801 is just wet. Further, in the after mist mode, the mist of the disinfectant water sprayed from the spray device 481 lands on the non-cleaning region 801B. As a result, it is possible to suppress the generation of bacteria and dirt due to the dirt that is not washed away by the washing water.

Further, when the water droplet WD1 or the water film WF1 formed by the premist mode remains attached to the non-cleaning region 801B, the water droplet WD1 or the water film WF1 evaporates to precipitate scale, and the non-cleaning region 801B is contaminated with water stains. May occur. On the other hand, by washing away the water droplets WD1 or the water film WF1 formed in the non-cleaning region 801B by the aftermist mode, it is possible to prevent the water droplets WD1 or the water film WF1 from remaining in the non-cleaning region 801B. As a result, it is possible to suppress the generation of water stains. Therefore, it is possible to suppress the generation of bacteria and stains in a wide range of the toilet bowl 800 including the non-cleaning region 801B, and to suppress the generation of visible scale stains in the non-cleaning region 801B in a short period of time.

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

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

As shown in FIG. 25 (b), in the second step, the mist is landed on the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B in the first step. Thereby, in the second step, the water droplet WD1 or the water film WF1 is washed away by increasing the volume of the water droplet WD1 or the water film WF1. That is, as the volume increases and the weight increases, the water droplet WD1 or the water film WF1 formed in the non-cleaning region 801B flows down into the cleaning region 801A. In the premist mode, the first step and the second step may be continuous in time.
For example, when the detection sensor 402 detects the user due to an erroneous entry or the like and the first step of the premist mode is executed, the second step is executed and the water droplet WD1 or water formed in the non-cleaning region 801B is executed. The membrane WF1 is allowed to flow down.

By washing away the water droplets WD1 or the water film WF1 formed in the non-cleaning region 801B by the first step, it is possible to prevent the water droplets WD1 or the water film WF1 from remaining in the non-cleaning region 801B. As a result, it is possible to suppress the generation of water stains. Therefore, it is possible to suppress the generation of bacteria and stains in a wide range of the toilet bowl 800 including the non-cleaning region 801B, and to suppress the generation of visible scale stains in the non-cleaning region 801B in a short period of time.

Further, in the premist mode, if the mist is sprayed so that the landed mist immediately flows down, the mist has a large particle size and flow rate, so that the mist bounces in the bowl portion 801 and scatters out of the toilet bowl 800. There is a fear. On the other hand, in this example, after the water droplet WD1 or the water film WF1 is formed by the first step, the water droplet WD1 or the water film WF1 is allowed to flow down by increasing the volume of the water droplet WD1 or the water film WF1 by the second step. There is. As a result, it is possible to prevent the mist from splashing out of the toilet bowl.

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

As shown in FIG. 26 (b), the rim upper surface 806 of the toilet bowl 800 has a region 810 in which the toilet seat leg 210 comes into contact with the seat 200 in the closed state.

In the mist mode (for example, after mist mode or manual mist mode) in which the mist of disinfectant water is sprayed on the upper surface 806 of the rim and the seating portion 200, when the toilet lid 300 is in the open state, the outside of the toilet bowl 800 and the toilet seat device 100 There is a risk that the hemist will scatter. Therefore, in order to suppress the scattering of mist, it is desirable that the toilet lid 300 and the seating portion 200 are in a closed state. On the other hand, in the mist mode in which the mist of the disinfectant water is sprayed on the rim upper surface 806 and the seating portion 200, when the toilet lid 300 and the seating portion 200 are closed, the region 810 of the rim upper surface 806 and the toilet seat leg 210 Since they are in contact with each other, the mist cannot land on the region 810 and the toilet seat leg 210. Further, since the rim upper surface 806 and the seating portion 200 are close to each other when the toilet lid 300 and the seating portion 200 are closed, the outer peripheral portion 204e of the back surface 204 of the seating portion 200 and the outer peripheral portion 806e of the rim upper surface surface 806 Mist is hard to reach.

Therefore, in one embodiment of the toilet seat device 100, the after mist mode or the manual mist mode has the first step and the second step described below.
27 (a) and 27 (b) are cross-sectional views illustrating the operation of the toilet seat device according to the embodiment in the after mist mode or the manual mist mode.
27 (a) represents the first step, and FIG. 27 (b) represents the second step. As shown in FIG. 27A, in the first step, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512, and the seating portion 200 and the toilet lid 300 are closed (fully closed). State). With the toilet lid 300 closed, the first step sprays a mist of disinfectant water onto the rim upper surface 806 and the seating portion 200. In the first step, since the toilet lid 300 is in the closed state, a large amount of mist is sprayed on the rim upper surface 806 and the seating portion 200 while suppressing the mist from scattering to the outside of the toilet bowl 800 and the toilet seat device 100. can do.

As shown in FIG. 27B, in the second step, the control device 405 controls the toilet seat motor 511 and the toilet lid motor 512 to keep the seating portion 200 and the toilet lid 300 open. In the second step, with the seating portion 200 and the stool lid 300 open, the mist of the disinfectant water is sprayed on the rim upper surface 806 and the seating portion 200. As a result, in the second step, the mist of disinfectant water is sprayed on the region 810 where the toilet seat leg 210 on the upper surface of the rim comes into contact. In the second step, since the seating portion 200 is in the open state, the mist can be landed on the toilet seat leg portion 210 and the region 810 of the rim upper surface 806. Further, the mist is likely to land on the outer peripheral portion 806e of the rim upper surface 806 and the outer peripheral portion 204e of the seating portion 200.

The control device 405 executes the second step after executing, for example, the first step in one after-mist mode and the manual mist mode. Alternatively, the first step may be executed after the second step. By the first step and the second step described above, a wide range including the area 810 where the toilet seat leg 210 of the rim upper surface 806 comes into contact while suppressing the mist from scattering to the outside of the toilet bowl 800 and the toilet seat device 100. A large amount of mist can be landed on the rim to suppress the generation of bacteria and dirt.

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

In the second step, when the seating portion 200 is in the fully open state, the toilet seat leg portion 210 is far from the rim upper surface surface 806, so that it becomes difficult to land the mist on the toilet seat leg portion 210. On the other hand, in the example shown in FIG. 27B, the control device 405 controls the toilet seat motor 511 so that the seating portion 200 is in the half-open state in the second step. Therefore, the distance between the toilet seat leg 210 and the rim upper surface 806 can be shortened as compared with the case where the seat 200 is fully open. As a result, the mist of the sterilized water can be landed on the toilet seat leg 210, which is difficult for the mist of the sterilized water to reach in the first step.

Further, for example, in the control device 405, the total amount (ml) of the disinfectant water sprayed on the rim upper surface 806 side in the first step is the total amount of the disinfectant water mist sprayed on the rim upper surface 806 side in the second step. The spray device 481 is controlled to be more than (ml). For example, the total amount of disinfectant water mist landing on the rim upper surface 806 in the first step is larger than the total amount of disinfectant water mist landing on the rim upper surface 806 in the second step. By landing a large amount of sterilized water mist on the rim upper surface 806 in the first step, it is possible to further suppress the generation of bacteria and stains on the rim upper surface 806. At this time, since the toilet lid 300 is in the closed state in the first step, even if a large amount of mist is sprayed, there is little possibility that the mist is scattered outside the toilet bowl 800 and the toilet seat device 100. On the other hand, in the second step in which the toilet lid 300 is opened together with the seating portion 200, the mist is more likely to be scattered outside the toilet bowl 800 and the toilet seat device 100 as compared with the first step. Therefore, in the second step, by landing a relatively small amount of mist on the upper surface of the rim 806, it is possible to prevent the mist from scattering to the outside of the toilet bowl 800 and the toilet seat device 100.

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

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

Further, FIG. 28B shows a state in which the seating portion 200 is moved in the closing direction in the second step. When the seating portion 200 is rotated from above to below as shown by the arrow A8, an air flow f3 is generated in the vicinity of the rim upper surface 806. As a result, the mist in the vicinity of the rim upper surface 806 is diffused, and the mist of the sterilized water can be landed on the rim upper surface 806 in a wider range.

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

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

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

Further, a packing 490 is provided between the casing 400 and the mounting portion 806r on the upper surface of the rim 806. The packing 490 is arranged in the front portion of the mounting portion 806r according to the shape of the casing 400. This makes it possible to prevent washing water, mist, filth, and the like from entering the rear side of the packing 490.

A gap SP is formed between the mounting portion 806r and the casing 400 on the front side of the packing 490. For example, in the after mist mode or the manual mist mode, when the mist of the disinfectant water is sprayed not only in the bowl portion 801 but also on the upper surface 806 of the rim, the mist of the disinfectant water may enter the gap SP. Since the gap SP is a part that is difficult for the user to see, the mist that enters the gap SP and lands on the mounting portion 806r unknowingly becomes a large water droplet WD2 or water film WF2 and goes out of the toilet bowl 800. Dripping water leakage may occur.

Therefore, in the after mist mode or the manual mist mode, the spraying device 481 has an average amount of sterilized water per unit area of the sterilized water landing on the non-placed portion 806f, and the sterilized water landing on the placed portion 806r. The sterilized water is ejected so that the amount of water landed per unit area is larger than the average amount of water landed. It is desirable that the spraying device 481 has the non-placed portion 806f landed with the sterilized water and the placed portion 806r not landed with the sterilized water.

By landing a large amount of sterilized water on the non-mounting portion 806f as compared with the mounting portion 806r, it is possible to suppress the generation of bacteria and dirt in the non-mounting portion 806f. The non-placed portion 806f is a portion where air is less likely to stay than the placed portion 806r, so that it is easy to dry, and the portion is easy for the user to see and wipe off. Therefore, even if the disinfectant water landed on the non-placed portion 806f on the upper surface of the rim, the disinfectant water aggregated on the non-placed portion 806f without knowing it and became a large water droplet or a water film. It is unlikely that it will hang out of the toilet bowl 800. Further, since the amount of sterilized water landing on the mounting portion 806r is relatively small, the sterilized water agglomerates in the mounting portion 806r to form a large water droplet or a water film, and the toilet bowl 800 unknowingly. It is possible to suppress the dripping to the outside. Therefore, when the mist of sterilized water is sprayed on the upper surface 806 of the rim of the toilet bowl 800, it is possible to suppress water leakage to the outside of the toilet bowl 800.

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

FIG. 30 is a cross-sectional view illustrating the operation of the toilet seat device according to the embodiment in the after mist mode or the manual mist mode.
31 (a) and 31 (b) are perspective views illustrating the operation of the toilet seat device according to the embodiment in the after mist mode or the manual mist mode.
In this example, the spray device 481 has a first water discharge unit 51 and a second water discharge unit 52. For the first water discharge unit 51, for example, a nozzle capable of ejecting (spraying) tap water or sterilized water is used. For the second water discharge unit 52, for example, the above-mentioned disk 481b is used.

The flow path 113 for guiding water to the spray device 481 is branched into a flow path for supplying water to the first water discharge unit 51 and a flow path for supplying water to the second water discharge unit 52. The water supply to each water discharge unit is controlled by the control device 405. The first water discharge unit 51 and the second water discharge unit 52, for example, simultaneously eject (spray) sterilized water.

FIG. 31 (a) illustrates the operation of the second water discharge unit 52 in the after mist mode or the manual mist mode. The second water discharge portion 52 causes the disinfectant water to land on the non-placed portion 806f on the upper surface of the rim 806. Further, the second water discharge unit 52 also makes the disinfectant water land on the front side of the second water discharge unit 52 in the bowl portion 801.

For example, the second water discharge unit 52 sprays a mist of sterilized water forward and downward. A part of the sprayed mist rides on the updraft U1 formed by the blower 513 and rises above the upper surface of the rim 806. As a result, the mist of sterilized water lands on the non-placed portion 806f, the seating portion 200, and the toilet lid 300.

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

The spraying device 481 is provided inside or below the casing 400. Further, the sterilized water sprayed from the spray device 481 gradually drops due to its own weight. Therefore, in order to land the sterilized water on the non-placed portion 806f, it is desirable to spray the sterilized water from a high position. Therefore, as shown in FIG. 30, the second water discharge unit 52 is arranged above the first water discharge unit 51 (nozzle water discharge port). As a result, the sterilized water can be more reliably landed on the non-placed portion 806f. On the other hand, in order to prevent the disinfectant water from landing on the mounting portion 806r, it is desirable to eject (spray) the disinfectant water from a low position. Since the first water discharge unit 51 (nozzle water discharge port) is arranged below the second water discharge unit 52, it is possible to further suppress the landing of sterilized water on the mounting unit 806r.

Further, the second water discharge portion 52 is desired to be clean because the disinfectant water is landed on the non-placed portion 806f of the rim upper surface surface 806 that the user may touch. Therefore, the second water discharge portion 52 is arranged inside the casing 400. Further, the second water discharge portion 52 (disk 481b) is located above the upper surface of the rim 806. As a result, it is possible to prevent filth from adhering to the second water discharge unit 52 and ensure the cleanliness of the second water discharge unit 52.

On the other hand, since the first water spouting unit 51 makes the disinfectant water land on the mounting portion 806r side in the bowl portion 801 which is unlikely to be touched by the user, cleanliness is a problem as compared with the second water spouting unit 52. It's hard to become. Therefore, the first water discharge portion 51 is arranged so as to project below the casing 400. For example, the first spouting portion 51 (nozzle spouting port) is located below the upper surface of the rim 806. As a result, the first water discharge portion 51 can be arranged at a low position, and the sterilized water can be further suppressed from landing on the placement portion 806r.

Further, the spray device 481 (second water discharge unit 52) has a size that does not allow at least a part of the sterilized water ejected to the mounting portion 806r side (rear side) of the spray device 481 from the updraft U1 in the top view. Form with a sword. On the other hand, the spray device 481 (first water discharge unit 51) has a size such that at least a part of the sterilized water sprayed on the non-mounting portion 806f (front side) of the spray device 481 is placed on the updraft U1 in the top view. Form.

Specifically, the spraying device 481 makes the disinfectant water ejected toward the mounting portion 806r side of the spraying device 481 in the form of a shower, a film, or a mist having a first particle size. Further, the spraying device 481 makes the sterilized water ejected to the non-placed portion 806f side of the spraying device 481 in the form of a mist having a second particle size smaller than the first particle size.

As a result, the sterilized water ejected from the spraying device 481 to the non-mounted portion 806f side is easier to ride on the updraft than the sterilized water ejected to the mounted portion 806r side, and more to the non-mounted portion 806f. Sterilized water can be landed. On the contrary, the sterilized water ejected from the spraying device 481 to the mounting portion 806r is less likely to get on the updraft than the sterilized water ejected to the non-mounted portion 806f side, and the sterilized water is sterilized on the mounting portion 806r. Can be suppressed from landing on water.

The average value or the median value of the particle size distribution of the mist can be used for comparing the size of the first particle size and the second particle size. The shower-like and film-like shapes are water shapes larger than the mist fine particles. The self-weight of the shower-like and film-like disinfectant water is larger than the self-weight of the mist particles having the first particle size. The shower-shaped sterilized water may be filamentous or large-grained. The shape and size of the sterilized water ejected to the mounting portion 806r side can be adjusted by, for example, the shape of the spout of the first spouting portion 51.

In FIGS. 30 and 31, a case where two water discharge portions are provided has been described. However, the number of spouting portions may be 1 or 3 or more. By appropriately changing the spraying direction, spraying range, mist particle size, etc., a large amount of sterilized water is allowed to land on the non-placed portion 806f, and the sterilized water is suppressed from landing on the placed portion 806r. can do.

FIG. 32 is a flowchart illustrating the operation of the toilet seat device according to the embodiment in the manual mist mode.
When the user operates the manual operation unit 500, the control device 405 can execute the manual mist mode based on the operation information of the manual operation unit 500. Here, if the operation of the manual operation unit 500 is continuously performed in a short period of time and the manual mist mode is continuously executed in a short period of time, the seating unit 200 may be excessively wet. .. As a result, the user who touches the mist that has landed on the seating portion 200 may feel uncomfortable, or the mist that has landed may hang down to the outside of the toilet bowl 800.

Therefore, in the example shown in FIG. 32, the control device 405 has a continuous manual mist prohibition mode. The continuous manual mist prohibition mode is predetermined from the end of the manual mist mode when the manual operation unit 500 is operated again within a predetermined time after the execution of the manual mist mode (before the predetermined time elapses from the end of the manual mist mode). Prohibits replaying manual mist mode until time has passed. Further, in the continuous manual mist prohibition mode, even if the manual operation unit 500 is operated again while the manual mist mode is being executed, the manual mist mode is executed again until a predetermined time elapses from the end of the manual mist mode. Ban.

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

As described above, even if the manual operation unit 500 is operated during the execution of the manual mist mode or within a predetermined time after the execution, the manual mist mode is not executed again by the continuous manual mist prohibition mode. As a result, even if the manual operation of spraying the mist is continuously performed in a short period of time, it is possible to prevent an excessive amount of mist from landing on the seating portion 200. It is possible to prevent a large amount of mist from landing on the seating portion 200 and causing the user to feel uncomfortable, and to prevent the mist landing on the seating portion 200 from dripping out of the toilet bowl 800.

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

The user can remove bacteria and dirt adhering to the seat 200 by wiping the mist that has landed on the seat 200 in the manual mist mode with toilet paper or the like. If, after the user wipes off almost all of the mist that has landed on the seat 200, if there is still dirt on the seat 200, the user again executes the manual mist mode and wipes off the remaining dirt. I may want to. In such a case, it is inconvenient for the user to wait for a predetermined time.

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

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

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

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

Further, when the manual mist mode is not executed by the continuous manual mist prohibition mode and the mist is not sprayed even though the user operates the manual operation unit 500 in order to execute the manual mist mode, the user sits on the toilet seat. There is a risk of misidentifying that the device 100 has failed. Therefore, when the wiping operation of the user is not detected (step S404: No), the control device 405 notifies by the notification means that the continuous manual mist prohibition mode has been executed (step S405). This makes it possible to prevent misidentification by the user. As the notification means, any means capable of performing notification by sound, light, or the like can be used. For example, as a notification means, a speaker, an LED, a liquid crystal display, or the like can be appropriately provided in the manual operation unit 500 or the casing 400.

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

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

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

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

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

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

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

In this way, when the manual operation unit 500 is operated during or within a predetermined time after the execution of the first manual mist mode, the second manual mist mode in which the amount of mist sprayed is smaller than that in the first manual mist mode is available. Will be executed. As a result, even if the manual operation of spraying the mist is continuously performed, it is possible to prevent an excessive amount of mist from landing on the seating portion 200. It is possible to prevent a large amount of mist from landing on the seating portion 200 and causing the user to feel uncomfortable, and to prevent the mist landing on the seating portion 200 from dripping out of the toilet bowl 800.

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

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

Therefore, the control device 405 has a manual mist release mode that enables the first manual mist mode to be executed again before a predetermined time elapses from the end of the first manual mist mode. As a result, even if a predetermined time has not passed since the previous first manual mist mode, the first manual mist mode can be executed again, and the usability can be improved.

As shown in FIG. 33, when it is detected by the wiping operation detecting means that the user has performed the wiping operation (step S504: Yes), the manual mist release mode is executed. That is, the first manual mist mode can be executed again, and the first manual mist mode is executed (step S503).
Further, when the user operates the manual operation unit 500, the second manual mist mode is executed without executing the first manual mist mode, and if the amount of mist sprayed is small, the user causes the toilet seat device 100 to fail. There is a risk of misidentifying that it was done. Therefore, when the wiping operation of the user is not detected (step S504: No), the control device 405 notifies by the notification means that the second manual mist mode has been executed (step S505). This makes it possible to prevent misidentification by the user.

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

When the user does not operate the operation for inputting that the wiping operation has been performed on the seat portion 200 (step S506: No), the second manual mist mode is executed (step S507).

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

As shown in FIGS. 34 (a) and 34 (b), the particle size measuring device 600 includes a light emitting unit 601 and a light receiving unit 602. The light receiving unit 602 is provided so as to be able to receive the laser emitted by the light emitting unit 601. In the measurement of the particle size, the laser emitted by the light emitting unit 601 is applied to the mist M sprayed from the spraying device 481. The light receiving unit 602 receives the diffracted scattered light generated by the irradiation of the laser. This makes it possible to detect the light intensity distribution pattern. Aerotrack LDSA-3500A (manufactured by Microtrack Bell Co., Ltd.) can be used as the measuring device.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. The above-mentioned embodiments which have been appropriately designed by those skilled in the art are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, size, material, arrangement, installation form, and the like of each element included in the toilet bowl, the toilet seat device, and the like are not limited to those exemplified, and can be appropriately changed.
Further, the elements included in each of the above-described embodiments can be combined as much as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

10 Toilet device, 51 1st water discharge part, 52 2nd water discharge part, 100 toilet seat device, 110-113 flow path, 200 seating part, 200a opening, 204 back side, 204e outer circumference, 210 toilet seat leg, 300 toilet lid, 400 Casing, 402 detection sensor, 403 human body detection sensor, 404 seating detection sensor, 405 control device, 431 electromagnetic valve, 450 sterilization device, 472 switching valve, 473 cleaning nozzle, 474 spout, 476 nozzle motor, 478 nozzle cleaning chamber, 479 Nozzle damper, 481 spraying device, 481a motor, 481b disk, 481c water supply port, 482 mist damper, 490 packing, 500 manual operation unit, 511 toilet seat motor, 512 toilet lid motor, 513 blower, 514 hot air heater, 515 Heater, 516 blower damper, 516a opening, 600 measuring device, 601 light emitting part, 602 light receiving part, 800 toilet bowl, 801 bowl part, 801A cleaning area, 801B non-cleaning area, 801F front end side non-cleaning area, 801w reservoir, 805 Rim part, 805B shelf-shaped part, 806 rim upper surface, 806e outer peripheral part, 806f non-mounting part, 806r mounting part, 810 area, 811 spout, 821 upper area, 822 lower area, 823 round part, 824 mist guide part , B1 bottom surface, M, M1, M2 mist, S slit, S1 top surface, SF swirl flow, SU 1st measurement point, SL 2nd measurement point, SP gap, U1 updraft, W water, OB spray object, f1 Updraft, f2, f3 airflow, WD1, WD2 water droplets, WF1, WF2 water film, θs spray angle, Ds spray direction

Claims (5)

A toilet bowl having a bowl portion that receives filth and a rim upper surface located above the bowl portion.
The toilet seat device mounted on the upper surface of the rim and
Equipped with
The toilet seat device is
The main body mounted on the rear part of the upper surface of the rim and
A sterilizing device provided in the main body to generate sterilizing water,
A spraying device provided in the main body or below the main body and spraying the disinfectant water in the bowl and on the upper surface of the rim.
A control device that controls the spray device and
Have,
The upper surface of the rim has a non-mounting portion on which the main body portion is not mounted, and a mounting portion located behind the non-mounting portion and on which the main body portion is mounted.
In the spray device, the average amount of water landing per unit area of the sterilized water landing on the non-placed portion is larger than the average amount of water landing per unit area of the sterilized water landing on the previously described resting portion. A toilet device characterized by ejecting the disinfectant water so as to increase the number. Further equipped with a blower device that blows air toward the inside of the toilet bowl to generate an updraft.
The spraying device forms the disinfectant water ejected to the side of the above-mentioned placement portion from the spraying device in a size that does not ride on the updraft in the top view, and the non-placed portion is larger than the spraying device in the top view. The toilet device according to claim 1, wherein the disinfectant water ejected to the side is formed in a size that allows it to ride on the updraft. Further equipped with a blower device that blows air toward the inside of the toilet bowl to generate an updraft.
The spraying device has a shower-like, film-like, or first-sized mist-like disinfectant water ejected to the side of the above-mentioned placement portion from the spraying device in the top view, and is more than the spraying device in the top view. The toilet device according to claim 1, wherein the disinfectant water ejected to the non-placed portion side is in the form of a mist having a second particle size smaller than the first particle size. The spraying device is
A first water spouting portion for landing the sterilized water on the previously described placing portion side in the bowl portion,
A second water spouting part for landing the sterilized water on the non-placed part,
Have,
The toilet device according to any one of claims 1 to 3, wherein the second water discharge unit is arranged above the first water discharge unit. The second water discharge portion is arranged inside the main body portion.
The toilet device according to claim 4, wherein the first water discharge portion is arranged so as to project below the main body portion.

Images