JP7373131B2 - toilet seat device - Google Patents

Description

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

2. Description of the Related Art Toilet seat devices are known that include a spraying section that sprays a sterilizing liquid in a mist in order to sterilize the toilet seat and the inside of the toilet bowl (for example, Patent Document 1). This spray unit is installed inside the storage chamber in the main body of the toilet seat device, and by supplying liquid onto a rotating body that is circular in top view, the mist is released from the storage chamber through an opening provided at the front of the storage chamber. Spray on.

In a toilet seat device equipped with such a spraying section, if residual water occurs in the storage chamber, it may become a factor such as dirt in the storage chamber.

JP 2019-112923 Publication

The present invention has been made based on the recognition of this problem, and an object of the present invention is to provide a toilet seat device that can suppress the occurrence of residual water in a storage chamber that accommodates a spray unit.

The present invention provides a main body disposed at the rear of a toilet bowl, a toilet seat rotatably supported by the main body, and a sprayer that sprays mist onto at least one of the inside of the toilet bowl and the toilet seat. and a control device for controlling the operation of the spraying section, the main body section having a storage chamber for storing the spraying section, and the spraying section rotating around a rotation axis extending in the vertical direction. The mist is sprayed by supplying liquid onto the rotating body, and the storage chamber has a rear wall, a side wall, and a bottom wall, and the storage chamber has a rear wall, a side wall, and a bottom wall. The toilet seat device is characterized in that the rear wall has a curved portion curved along a circle centered on the rotation axis.

According to this toilet seat device, the rear wall of the storage chamber has a curved portion curved along a circle centered on the rotation axis. As a result, the mist ejected radially from the rotating body so as to include a rotational component and collided with the rear wall is smoothly discharged to the front side using the rotational component and the curvature of the curved portion. Therefore, it is possible to prevent water from remaining on the rear side of the storage chamber. Therefore, it is possible to provide a toilet seat device that can suppress the occurrence of residual water in the storage chamber that accommodates the spray section.

According to an aspect of the present invention, a toilet seat device is provided that can suppress the generation of residual water in a storage chamber that accommodates a spray unit.

FIG. 1 is a perspective view showing a toilet device according to an embodiment. FIG. 2 is a sectional view of the toilet device in FIG. 1 viewed from the direction of arrow AA. FIG. 2 is a block diagram showing the configuration of main parts of the toilet seat device. 4(a) to 4(e) are a plan view and a perspective view showing the main body of the toilet seat device. FIG. 4C is a cross-sectional view of the main body portion and the spray portion in FIG. 4(c) as viewed from the direction of arrow BB. It is a schematic diagram which shows the support state of a spray part typically. FIG. 2 is a cross-sectional view schematically showing a spray section and a storage chamber of the toilet seat device according to the embodiment. It is a sectional view showing typically a modification of a spray part of a toilet seat device concerning an embodiment, and a storage room. It is a sectional view showing typically a modification of a spray part of a toilet seat device concerning an embodiment, and a storage room. It is a cross-sectional perspective view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment. It is a sectional view showing typically a modification of the storage room of the toilet seat device concerning an embodiment. It is a cross-sectional perspective view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment. It is a sectional view showing typically a modification of the storage room of the toilet seat device concerning an embodiment. It is a cross-sectional perspective view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment. It is a sectional view showing typically a modification of the storage room of the toilet seat device concerning an embodiment. FIG. 7 is a bottom view schematically showing a modification of the toilet seat device according to the embodiment. It is a sectional view showing typically a modification of the storage room of the toilet seat device concerning an embodiment. It is a sectional view showing typically a modification of the storage room of the toilet seat device concerning an embodiment. It is a sectional view showing typically a modification of the storage room of the toilet seat device concerning an embodiment.

Embodiments of the present invention will be described below with reference to the drawings. Note that in each drawing, similar components are denoted by the same reference numerals, and detailed explanations are omitted as appropriate.

FIG. 1 is a perspective view showing a toilet device according to an embodiment.
FIG. 2 is a sectional view of the toilet device in FIG. 1 viewed from the direction of arrow AA.
The toilet device 1 shown in FIG. 1 includes a Western-style seated toilet bowl (hereinafter simply referred to as "toilet bowl 100" for convenience of explanation) and a toilet seat device 10. The toilet bowl 100 has a concave bowl portion 101 that receives waste. The toilet seat device 10 is installed on the top of the toilet bowl 100.

The toilet seat device 10 includes a main body 12 arranged at the rear of the toilet bowl 100, a toilet seat 14 rotatably supported by the main body 12, and a mist inside at least one of the inside of the toilet bowl 100 and the toilet seat 14. It includes a spraying section 60 that sprays M, and a control device 70 that controls the operation of the spraying section 60.

A toilet lid 16 is provided on the rear side of the toilet seat portion 14 and is rotatably supported on the main body portion 12 . In the state shown in FIG. 1, the toilet seat portion 14 is in a closed state (lowered state), and the toilet lid 16 is in an open state (raised state). In the closed state, the toilet lid 16 covers the seat surface 14a of the toilet seat portion 14 from above.

The main body portion 12 is provided with a seating detection sensor 20 that detects that a user is sitting on the toilet seat portion 14 . Further, inside the main body section 12, a body washing function section 58, etc., which realizes washing of the private parts of the human body (such as "buttocks") of a user sitting on the toilet seat section 14, is built-in. When the seating detection sensor 20 detects the user sitting on the toilet seat 14, when the user operates the manual operation unit 24, such as a remote control, the cleaning nozzle of the body cleaning function unit 58 (for convenience of explanation below, (referred to simply as “nozzle 58a”) can be advanced into the bowl portion 101 of the toilet bowl 100. Note that the toilet seat device 10 shown in FIG. 1 is shown in a state in which the nozzle 58a has advanced into the bowl portion 101.

One or more water spouts are provided at the tip of the nozzle 58a. The nozzle 58a can spray water from a spout provided at its tip to clean the "buttocks" of the user sitting on the toilet seat section 14. In this specification, "upper", "lower", "front", "rear", "left side", and "right side" each refer to the toilet seat 14 with the back facing the open toilet lid 16. This is the direction seen from the user sitting on the screen.

As shown in FIG. 2, the toilet bowl 100 has a rim part 102 provided on a bowl part 101. The rim portion 102 is an annular portion forming the upper edge of the toilet bowl 100. Rim portion 102 has an upper surface 103 and an inner wall surface 104. The upper surface 103 faces the back surface 14b of the closed toilet seat portion 14. In the bowl portion 101, water is stored. For example, when a user performs a toilet flushing operation using a switch provided on the manual operation section 24 (remote controller) or when the user stands up from the toilet seat section 14, the toilet bowl is flushed (e.g., the waste in the bowl section 101 is discharged). , an operation of cleaning the surface of the bowl portion 101) is executed. During toilet flushing, flushing water is supplied into the bowl portion 101.

FIG. 3 is a block diagram showing the main part configuration of the toilet seat device.
Note that FIG. 3 shows the main configurations of the waterway system and the electrical system.
The seating detection sensor 20 can detect whether or not a user is sitting on the toilet seat section 14 . The seating detection sensor 20 detects when the user is seated and when the user leaves the seat. As the seating detection sensor 20, a microwave sensor, a distance sensor (infrared light emitting type sensor), an ultrasonic sensor, a tact switch, a capacitance switch (touch sensor), or a strain sensor can be used.

Note that when using sensors such as a tactile switch, an electrostatic sensor, and a strain sensor, these sensors are provided on the toilet seat portion 14. When a user sits on the toilet seat portion 14, the tact switch is pressed down by the user's weight. Alternatively, a user sits on the electrostatic sensor. Alternatively, pressure is applied to the strain sensor by the user's weight. Electrical signals from these sensors can detect whether the user is sitting.

The human body detection sensor 22 can detect a user who is in front of the toilet bowl 100, that is, a user who is present at a position spaced apart from the toilet seat part 14 forward. That is, the human body detection sensor 22 can detect a user who has entered the toilet room and approached the toilet seat section 14. As such a human body detection sensor, for example, a pyroelectric sensor, a microwave sensor, an ultrasonic sensor, or a distance measurement sensor (infrared light projection type sensor) can be used. The human body detection sensor 22 detects a user who has just opened the toilet door and entered the toilet, a user who is just about to enter the toilet, or a user who is in front of the door when trying to enter the toilet. Good too. 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 manual operation unit 24 is an operation unit that allows the user to spray sterilizing water at an arbitrary timing, for example. The manual operation section 24 is a remote control having a switch or button, and when the user operates the manual operation section 24, operation information (signal) instructing spraying of sterilizing water is sent to the control device 70. The control device 70 controls the sterilization device 54 and the spray unit 60 based on the operation information. Thereby, the user can spray the sterilizing water by operating the manual operation section 24. In addition to spraying sterilizing water, the manual operation unit 24 may include switches, buttons, etc. for the user to operate each function of the toilet seat device 10. When an operation corresponding to each function is performed, the operation information is sent to the control device 70, and the control device 70 controls the operation of each part of the toilet seat device 10 based on the operation information.

Moreover, inside the main body part 12, a toilet seat motor 26, a toilet lid motor 28, a toilet seat heater 30, an air blower 32, a hot air heater 34, and an air direction changing section 36 are provided. The toilet seat motor 26 electrically rotates the toilet seat 14 to open and close it based on a command from the control device 70 . The toilet lid motor 28 electrically rotates the toilet lid 16 to open and close it based on a command from the control device 70 .

The toilet seat heater 30 is provided inside the toilet seat portion 14, for example. The toilet seat heater 30 includes, for example, an annular metal member provided around an opening formed in the center of the toilet seat portion 14 . The toilet seat heater 30 warms the toilet seat portion 14 by being energized based on a command from the control device 70 . As the toilet seat heater 30, for example, a tubing heater, a sheathed heater, a halogen heater, a carbon heater, etc. may be used. The metal member is made of, for example, aluminum or copper. Moreover, various shapes such as a sheet shape, a wire shape, a mesh shape, etc. can be adopted as the shape of the metal member.

The blower device 32 is, for example, a fan provided inside the main body portion 12. The blower device 32 operates based on instructions from the control device 70. The air blowing device 32 can blow air toward the inside of the toilet bowl 100 (inside the bowl part 101) by, for example, rotating blades as the motor rotates. The blower device 32 carries the mist M ejected from the spray section 60 on the wind and sends the mist M to the toilet bowl 100 and the toilet seat section 14 . The air blower 32 is an air volume changing unit that can change the air volume by controlling the rotation of a motor, for example. Further, the blower device 32 may blow air to the private parts of the user sitting on the toilet seat portion 14.

The hot air heater 34 warms the air sent to the outside of the main body portion 12 by the air blower 32 . Thereby, warm air can be sent toward the user's private parts to dry the private parts. Further, the wind direction changing section 36 changes the direction of the wind sent from the main body section 12 into the toilet bowl 100. The wind direction changing unit 36 changes the direction of the wind sent into the toilet bowl 100 by changing the direction of a damper, a louver, etc. using a motor, for example. Further, the wind direction changing unit 36 may variably control the wind direction using the Coanda effect. The wind direction changing section 36 changes the direction of the wind inside the toilet bowl 100 to efficiently spread the mist M ejected from the spraying section 60 over the toilet bowl 100 and the toilet seat section 14.

In the waterway system, the toilet seat device 10 includes pipes 40 to 43, a solenoid valve 50, a vacuum breaker 52, a sterilization device 54, a switching valve 56, a nozzle 58a, a nozzle cleaning chamber 58c, and a spray section 60. These are arranged within the main body part 12.

The pipe line 40 is for guiding water supplied from a water supply source (not shown) such as a water supply or a water storage tank to the spray section 60, the nozzle 58a, and the like. A solenoid valve 50 is provided on the upstream side of the conduit 40. The electromagnetic valve 50 is an electromagnetic valve that can be opened and closed, and controls the supply of water based on a command from a control device 70 provided inside the main body 12 .

A vacuum breaker 52 is provided downstream of the electromagnetic valve 50 on the pipe line 40 . This vacuum breaker 52 has, for example, a channel for flowing water, an intake port for taking air into the channel, and a valve mechanism that opens and closes the intake port. For example, the valve mechanism closes the intake port when water is flowing through the flow path, and opens the intake port when the flow of water stops to take air into the flow path. That is, the vacuum breaker 52 takes in air when there is no water flow in the pipe line 40. For example, a float valve is used as the valve mechanism. The vacuum breaker 52 takes air into the pipe line 40 as described above, thereby promoting drainage of water from a portion of the pipe line 40 downstream of the vacuum breaker 52, for example. For example, the vacuum breaker 52 facilitates drainage of water from the nozzle 58a and the spray section 60.

On the pipe line 40, downstream of the vacuum breaker 52, a sterilization device 54 that generates sterilized water is provided. The sterilization device 54 generates sterilization water containing, for example, hypochlorous acid. Examples of the sterilization device 54 include an electrolytic cell unit. The electrolytic cell unit electrolyzes tap water flowing through a space (flow path) between an anode plate (not shown) and a cathode plate (not shown) under the control of energization from the control device 70. Note that the sterilized water is not limited to that containing hypochlorous acid. The sterilizing water may be, for example, a solution containing metal ions such as silver ions or copper ions, a solution containing electrolytic chlorine or ozone, acidic water, alkaline water, or the like. The sterilization device 54 is not limited to an electrolytic cell, and may have any configuration capable of generating sterilization water.

On the pipe line 40, a switching valve 56 is provided downstream of the sterilization device 54. A nozzle 58a of the body washing function section 58, a nozzle washing chamber 58c, and a spray section 60 are provided downstream of the switching valve 56. The pipe line 40 is branched by a switching valve 56 into a pipe line 41 that leads water to a nozzle 58a, a pipe line 42 that leads water to a nozzle cleaning chamber 58c, and a pipe line 43 that leads water to a spray section 60. The switching valve 56 controls opening and closing of each of the conduit 41 , the conduit 42 , and the conduit 43 based on commands from the control device 70 . That is, the switching valve 56 controls the supply of water to the nozzle 58a, the nozzle cleaning chamber 58c, and the spray section 60. Further, the switching valve 56 changes the flow rate of water supplied downstream thereof.

The body washing function section 58 includes a nozzle 58a, a nozzle motor 58b, a nozzle washing chamber 58c, and a nozzle damper 58d. When not in use, the nozzle 58a is located behind the nozzle damper 58d and housed within the main body 12. When cleaning the private parts of the human body, the nozzle 58a receives the driving force from the nozzle motor 58b, presses the nozzle damper 58d that can be opened and closed against the main body 12, and advances into the bowl part 101 of the toilet bowl 100. . The nozzle motor 58b is driven based on a command from the control device 70. The nozzle 58a discharges water from the water spout while extending forward from the main body 12 to clean the private parts of the human body. The nozzle cleaning chamber 58c cleans the outer peripheral surface (body) of the nozzle 58a by spraying sterilized water or tap water from a spout provided therein.

The spraying unit 60 sprays mist M onto at least one of the inside of the toilet bowl 100 (bowl part 101) and the toilet seat part 14. The spraying section 60 makes tap water or sterilized water generated by the sterilizing device 54 into a mist form, and sprays the mist M onto the bowl section 101 , the rim section 102 , and the toilet seat section 14 . In other words, the spray section 60 causes the mist M of sterilized water or the mist M of tap water to adhere to the bowl section 101 , the rim section 102 , and the toilet seat section 14 .

The control device 70 uses a circuit that is supplied with power from a power supply circuit (not shown). The control device 70 includes, for example, an integrated circuit such as a microcomputer. The control device 70 controls the toilet seat motor 26, the toilet lid motor 28, the toilet seat heater 30, and the air blower based on the detection information of the human body detection sensor 22 or the occupancy detection sensor 20 that detects the user, and the operation information of the manual operation unit 24. The device 32, the hot air heater 34, the air direction changing section 36, the electromagnetic valve 50, the sterilization device 54, the switching valve 56, the nozzle motor 58b, and the spray section 60 are controlled.

The control device 70 receives the detection information from the human body detection sensor 22 (a signal indicating whether or not a user is present) and the detection information from the seating detection sensor 20 (a signal indicating whether or not a user is seated), and uses the received detection information. Based on the information, the operation of each part of the toilet seat device 10 is controlled.

The control device 70 controls the operation of the spray section 60. The control device 70 can execute, for example, a pre-mist mode, an after-mist mode, a periodic mist mode, and a manual mist mode. The pre-mist mode is an operation mode in which a mist M of sterilized water or tap water is automatically sprayed based on the detection information of the human body detection sensor 22 before the user uses the toilet device 1 . The after-mist mode is an operation mode in which the mist M of sterilizing water is automatically sprayed based on the detection information of the human body detection sensor 22 after the user uses the toilet device 1 . The periodic mist mode is an operation mode in which, for example, the toilet seat device 10 learns and controls the non-use time period of the toilet device 1 and automatically sprays the mist M of sterilizing water. The manual mist mode is an operation mode in which a mist M of sterilizing water is sprayed based on the operation information of the manual operation unit 24.

4(a) to 4(e) are a plan view and a perspective view showing the main body of the toilet seat device.
As shown in FIG. 4(a), the spray unit 60, the nozzle damper 58d, and the blower damper 36a are located at the rear upper part of the bowl part 101 when the toilet seat device 10 is installed at the upper part of the toilet bowl 100. FIG. 4(b) shows an enlarged part of FIG. 4(a). In addition, in FIG. 4(b), the front wall part 126 of the main body part 12 located in front of the spray part 60 is broken to show the storage chamber 121 in which the spray part 60 is accommodated. FIGS. 4(c) to 4(e) are perspective views showing enlarged areas around the spray section 60, the nozzle damper 58d, and the blower damper 36a.

The nozzle damper 58d is rotatably supported on the front wall 12a of the main body 12. When the nozzle 58a is retracted into the main body 12, it is located behind the nozzle damper 58d. When cleaning a private part of the human body, the nozzle 58a comes into contact with the nozzle damper 58d, rotates the nozzle damper 58d to open it, and advances from the inside of the main body 12.

The blower damper 36a is located on the left side of the nozzle damper 58d, and is rotatably supported by the front wall 12a of the main body 12. The air damper 36a constitutes a part of the air direction changing section 36. Behind the blower damper 36a, the blower device 32, the hot air heater 34, the louvers of the wind direction changing section 36, and the like are arranged. The air damper 36a covers the opening 120 of the main body 12. The air sent from the blower device 32 is sent into the toilet bowl 100 through the opening 120 while the direction of the air is controlled by the air direction changing unit 36.

4(c) shows a state in which the blower device 32 has stopped operating, and FIG. 4(d) and FIG. 4(e) show a state in which the blower device 32 is in operation and blows air into the bowl portion 101. Indicates the condition. As shown in FIG. 4(c), when the air blowing is stopped, the air blowing damper 36a is closed. As shown in FIG. 4(d), when the blower device 32 operates, the blower damper 36a is rotated and opened by the pressure (wind pressure) of the air sent from the blower device 32. Thereby, the air blower 32 blows air from the rear upper part of the bowl part 101 to the front lower part of the bowl part 101, for example, as shown by arrow C.

In the state of FIG. 4(e), the amount of air sent by the blower 32 is larger (or the wind speed is higher) than in the state of FIG. 4(d). In this case, the blower damper 36a rotates further to open compared to the state shown in FIG. 4(d). Thereby, the air blower 32 blows air from the rear upper part of the bowl part 101 toward the front upper part of the bowl part 101, for example, as shown by arrow D. Note that the wind direction may be changed in the left-right direction by providing a louver or the like constituting the wind direction changing section 36 behind the blow damper 36a and making the direction of the louver variable.

In this way, the direction of the air sent from the air blower 32 is changed by the air direction changing section 36 (air blow damper 36a). The blowing device 32 can control the blowing direction depending on the air volume (wind speed). By placing the mist M sprayed from the spray unit 60 on the airflow generated by the air blowing from the blower device 32, the range to which the mist M adheres and the amount of mist M attached in each range (sterilized water or (amount of tap water) can be controlled.

FIG. 5 is a cross-sectional view of the main body portion and the spray portion in FIG. 4(c) as viewed from the direction of arrow BB.
FIG. 6 is a schematic diagram schematically showing the supported state of the spray section.
As shown in FIGS. 5 and 6, the spray section 60 includes a motor 61, a rotating body 62, and a rotating shaft 63. The rotating body 62 is connected to the motor 61 via a rotating shaft 63 that extends in the vertical direction. The rotation of the motor 61 is controlled by a control device 70, for example. The rotating body 62 rotates about the rotating shaft 63 by receiving the driving force from the motor 61 . The spray unit 60 sprays the mist M by supplying water W (liquid) onto the rotating body 62 .

Note that the rotating shaft 63 does not necessarily have to be parallel to the vertical direction, and it is sufficient that it has at least a component extending in the vertical direction. The rotating shaft 63 may be inclined with respect to the vertical direction. Further, the driving force of the rotating body 62 is not limited to the configuration in which it is supplied from the motor 61, but may be configured to be supplied from another device, for example. The motor 61 is provided as needed and can be omitted. The spray unit 60 only needs to have a rotating body 62 that rotates around a rotating shaft 63 that extends at least in the vertical direction.

A water supply port 43a of the conduit 43 is provided above the rotating body 62. Water W (tap water or sterilized water generated by the sterilization device 54) is supplied to the upper surface of the rotating body 62 from the water supply port 43a. When the motor 61 rotates, the rotational driving force is transmitted to the rotating body 62, and the rotating body 62 rotates. By supplying water W while the rotating body 62 is rotating, the rotating body 62 sprays the water W in the form of a mist. That is, the spray section 60 is of a rotary atomization type that generates the mist M by the rotation of the rotating body 62.

Note that the number of water supply ports 43a of the conduit 43 is not limited to one, and a plurality of water ports may be provided. For example, by arranging the plurality of water supply ports 43a at approximately equal intervals along the outer periphery of the rotating body 62, it is possible to suppress unevenness in the particle size and flow rate of the mist M around the spray section 60, and perform uniform spraying. I can do it.

The rotating body 62 is, for example, a disc-shaped disc. As shown in FIG. 5, the rotating body 62 has a conical shape, for example, and has an inclined surface 62a that slopes downward from the upper end side onto which the water W is dripped toward the lower end side (radially outward). The rotating body 62 sprays the mist M from the radially outer end 62b of the inclined surface 62a.

The water W dropped onto the upper surface of the rotating body 62 spreads in a film shape on the body 62 due to centrifugal force, and is emitted from the end portion 62b. Thereby, the rotating body 62 sprays the mist M so that it spreads in the horizontal direction (horizontal direction) rather than the vertical direction (vertical direction). Moreover, the rotating body 62 sprays the mist M downward with respect to the horizontal direction by having the inclined surface 62a.

Here, the water W splits from the end 62b of the rotating body 62 while remaining in the form of a film, or splits after becoming thread-like, and then becomes fine particles (mist M). In this spraying section 60, the particle size of the mist M can be controlled by the rotational speed of the rotating body 62, that is, the rotational speed of the motor 61. In this case, the higher the rotation speed, the smaller the particle size of the mist M becomes. For example, low-speed rotation at a rotation speed of about 1000 (rotation per minute: rpm), medium-speed rotation at a rotation speed of about 10,000 rpm, or high-speed rotation at a rotation speed of about 20,000 rpm is appropriately used to obtain a desired particle size. Furthermore, in the spray section 60, the particle size of the mist M can also be controlled by, for example, adjusting the flow rate of the water W supplied to the spray section 60 from the water supply port 43a of the conduit 43.

Note that the particle size is the particle size of fine particles existing in the air before adhering to the bowl portion 101 and the toilet seat portion 14, and is, for example, the Sauter average particle size (total volume/total surface area). Moreover, the mist M refers to a particle size range of 10 micrometers (μm) or more and 300 μm or less. If the particle size of the mist M is less than 10 μm, it will take a long time to wet target areas such as the bowl part 101, the rim part 102, and the toilet seat part 14. In addition, when using sterilizing water containing hypochlorous acid, if the particle size of the mist M is less than 10 μm, the concentration of hypochlorous acid in the mist M tends to decrease, and the sterilization performance tends to decrease. . On the other hand, if the particle size of the mist M is larger than 300 μm, the mist M will be difficult to diffuse and it will be difficult to spray the mist M over a wide range.

Note that the shape of the rotating body 62 is not limited to a disk shape, and may be any shape that can generate the mist M by rotation.

The spray section 60 is provided inside the main body section 12 . The spraying section 60 is arranged below the toilet seat section 14 when the toilet seat device 10 is installed above the toilet bowl 100, and sprays the mist M toward the inside of the toilet bowl 100. Here, the state in which the spray section 60 is disposed below the toilet seat section 14 means that at least a portion of the spray section 60 (rotating body 62 in this example) is below the toilet seat section 14 . As a result, the mist M of tap water or sterilized water is sprayed into the toilet bowl 100 from below the toilet seat portion 14 .

The main body section 12 has a storage chamber 121 that accommodates the spray section 60. The storage chamber 121 stores the rotating body 62 of the spray section 60. The storage chamber 121 only needs to store at least the rotating body 62 of the spray section 60, and does not necessarily have to store the entire spray section 60. The storage chamber 121 stores at least a portion of the spray section 60. However, the storage chamber 121 may be configured to store the entire spray section 60.

The main body 12 includes, for example, a bottom wall 122 that covers the bottom of the rotating body 62, a side wall 123 that covers the sides and rear of the rotating body 62, and a top wall 124 that covers the top of the rotating body 62. . The storage chamber 121 includes, for example, a bottom wall 122, a side wall 123, and a top wall 124. In this way, the storage chamber 121 covers the upper, lower, rear, and both sides of the rotating body 62. The storage chamber 121 has an opening 125 in the front that sprays the mist M forward. In other words, the storage chamber 121 opens only the front side of the rotating body 62.

The main body 12 further includes a front wall 126 that covers a portion of the front of the storage chamber 121, for example. In other words, the front wall part 126 covers a part of the front of the opening 125 of the storage chamber 121. Further, the main body 12 has an opening 128 for spraying the mist M. The opening 128 opens a part of the front of the storage chamber 121 and allows the space inside the storage chamber 121 to communicate with the outside of the main body 12 . The mist M sprayed from the rotating body 62 is discharged to the outside of the main body 12 through the opening 125 of the storage chamber 121 and the opening 128 of the main body 12 . In other words, the mist M is sprayed from the opening 128 into the interior of the toilet bowl 100 or onto the toilet seat 14 .

Opening 128 is provided between front wall 126 and bottom wall 122 . The opening 128 is formed, for example, by cutting out a portion of the front wall 126 on the lower end 126a side. Thereby, the opening 128 is located between the lower end 126a of the front wall 126 and the front end 122a of the bottom wall 122, and allows communication between the inside of the bowl 101 and the storage chamber 121.

The front wall portion 126 constitutes a part of the front wall 12a of the main body portion 12. The bottom wall portion 122 constitutes a part of the bottom plate 12b (base plate) of the main body portion 12. The front wall portion 126 and the bottom wall portion 122 may be provided integrally with the main body portion 12 or may be provided separately from the main body portion 12.

The opening 128 is for allowing the mist M sprayed from the rotating body 62 of the spraying section 60 to pass into the inside of the toilet bowl 100 (bowl section 101). The opening 128 remains open even when the mist M is not sprayed. In other words, the opening 128 constantly communicates between the inside of the toilet bowl 100 and the storage chamber 121 without being blocked by an openable/closable cover section or the like. This improves the air permeability of the storage chamber 121, so that residual water within the storage chamber 121 can be efficiently dried, and scale can be prevented from forming within the storage chamber 121.

As shown in FIG. 5, the opening 128 is provided at the lower end of the main body 12. As shown in FIG. The opening 128 is, for example, arranged below the rotating body 62 by ΔL. As a result, the front wall part 126 covers almost the entire front side of the spray part 60, so that even if urine or sewage splashed from the bowl part 101 enters the storage chamber 121 from the opening part 128, the spray part 60 will not be sprayed. It is possible to prevent the part 60 from getting caught.

As shown in FIG. 4, the opening 128 has a horizontally long slit shape that is longer in the horizontal direction (horizontal direction) than in the vertical direction (vertical direction). Thereby, it is possible to make it difficult for urine and sewage flowing from the upper side of the front surface 126b of the front wall part 126 to the lower side (opening 128 side) to enter the storage chamber 121 through the opening 128.

As shown in FIG. 5, the upper surface 122b (bottom wall) of the bottom wall portion 122 is inclined downward toward the opening 128. As shown in FIG. Thereby, the water W supplied into the storage chamber 121 can be discharged into the bowl part 101 from the opening 128 through the upper surface 122b of the bottom wall part 122. Therefore, the generation of residual water on the upper surface 122b of the bottom wall portion 122 can be reduced, so that the proliferation of scale and bacteria in the storage chamber 121 can be suppressed.

The rotating body 62 is located above the opening 128. The inclined surface 62a of the rotating body 62 is inclined toward the opening 128 on the front wall 126 side, for example. The rotating body 62 sprays the water W dropped on the upper surface in a horizontally elongated shape from the end 62b toward the opening 128. As a result, the mist M is emitted from the end 62b in a shape that matches the horizontally long slit shape of the opening 128, so that the mist M can be efficiently sprayed from the opening 128 into the toilet bowl 100. Further, the width of the opening 128 in the left-right direction is wider than the width (diameter) of the rotating body 62 in the left-right direction. Thereby, the mist M sprayed in a horizontally elongated shape can be efficiently sprayed from the opening 128 into the toilet bowl 100.

The motor 61 of the spray section 60 is provided on the upper wall section 124. In other words, the motor 61 is provided above the storage chamber 121. The rotating shaft 63 enters into the storage chamber 121 from above the upper wall 124 through a through hole provided in the upper wall 124 . The rotating body 62 is provided at the lower end of the rotating shaft 63. Thereby, the rotating body 62 can be rotatably arranged in the storage chamber 121. However, the configuration in which the rotating body 62 is arranged is not limited to this, and may be any configuration in which the rotating body 62 can be rotatably arranged in the storage chamber 121.

FIG. 7 is a cross-sectional view schematically showing a spray section and a storage chamber of the toilet seat device according to the embodiment.
FIG. 7 is a cross-sectional view of the spray section and storage chamber in FIG. 5, viewed from the direction of arrow CC.
As shown in FIG. 7, the storage chamber 121 has a rear wall 131, side walls 132, 133, and a bottom wall 134.

The rear wall 131 is a wall surface located at the rear of the rotating body 62. In other words, the rear wall 131 is a wall surface that covers the rear of the rotating body 62. The side wall 132 is a wall surface located on one of the left and right sides of the rotating body 62. In other words, the side wall 132 is a wall surface that covers one side of the rotating body 62. The side wall 133 is a wall surface located on the other left and right sides of the rotating body 62. In other words, the side wall 133 is a wall surface that covers the other side of the rotating body 62. The bottom wall 134 is a wall surface located below the rotating body 62. In other words, the rear wall 131 is a wall surface that covers the lower part of the rotating body 62.

As shown in FIG. 7, the side wall portion 123 is, for example, a plate-shaped member bent into a substantially U-shape. The rear wall 131 and the side walls 132 and 133 are formed by the side wall portion 123. In this way, the rear wall 131 and the side walls 132, 133 are constructed of one member. However, the rear wall 131 and the side walls 132, 133 are not limited to this, and may be formed by combining a plurality of plate-like members. The bottom wall 134 is formed by the bottom wall portion 122. In other words, the bottom wall 134 is the upper surface 122b of the bottom wall portion 122.

The rear wall 131 of the storage chamber 121 has a curved portion CP curved along a circle centered on the rotation axis 63 of the rotating body 62. In this example, substantially the entire rear wall 131 is a curved portion CP that is curved along a circle centered on the rotation axis 63 of the rotating body 62. In other words, the rear wall 131 is curved along a circle centered on the rotation axis 63 of the rotating body 62. For example, the rear wall 131 curves concentrically with the rotation axis 63 in a top view. The rear wall 131 is, for example, a wall surface that curves in a substantially semicircular shape when viewed from above. Here, the semicircular shape does not necessarily have to be a perfect circle concentric with the rotating body 62. The rear wall 131 may be curved so that the water can be smoothly transmitted and discharged.

Side walls 132, 133 are continuously connected to rear wall 131. The side wall 132 is continuously connected to one end of the rear wall 131 without using a step or a corner. The side wall 133 is continuously connected to the other end of the rear wall 131 without any steps or corners.

The side wall 132 extends linearly from one end of the semicircular rear wall 131 in a tangential direction to the one end of the rear wall 131, for example. Thereby, one end of the rear wall 131 and the side wall 132 can be continuously connected without using a step or a corner. Similarly, the side wall 133 extends linearly from the other end of the semicircular rear wall 131 in a tangential direction to the other end of the rear wall 131, for example. Thereby, the other end of the rear wall 131 and the side wall 132 can be continuously connected without using a step or a corner.

Further, the opening 125 is continuously connected to the side walls 132 and 133. The opening 125 is continuously connected to the side walls 132 and 133 without using a step or a corner.

The side wall 132 extends linearly from one end of the semicircular rear wall 131 to the front end 122a of the bottom wall portion 122 in a tangential direction of the one end of the rear wall 131, for example. Thereby, a continuous wall surface without steps or corners can be formed from one end of the rear wall 131 to the front end 122a of the bottom wall portion 122. In other words, the side wall 132 forms a continuous surface having no steps or corners from one end of the rear wall 131 to one end of the opening 125. Similarly, the side wall 133 extends linearly from the other end of the semicircular rear wall 131 to the front end 122a of the bottom wall portion 122 in the tangential direction of the other end of the rear wall 131, for example. In other words, the side wall 132 forms a continuous surface without steps or corners from the other end of the rear wall 131 to the other end of the opening 125.

Note that the opening 125 does not necessarily need to be continuously connected to the entire side wall 132. For example, in the vicinity of the upper end or the lower end of the side wall 132, there may be a stepped portion or an angular portion. The opening 125 only needs to be continuously connected to at least a portion of the side wall 132. Similarly, the opening 125 only needs to be continuously connected to at least a portion of the side wall 133.

In the portion on the front side of the rotating body 62, the distance DS in the left-right direction between the side wall 132 and the side wall 133 is greater than or equal to the width (diameter) of the rotating body 62 in the left-right direction. In other words, the width of the storage chamber 121 in the left-right direction is greater than or equal to the width of the rotor 62 in the left-right direction in the portion on the front side of the rotary body 62 . More specifically, the distance DS in the left-right direction between the side wall 132 and the side wall 133 is greater than or equal to the width (diameter) in the left-right direction of the rotating body 62 over the entire range from the position of the rotating body 62 to the position of the opening 125. .

In this example, the distance DS in the left-right direction between the side wall 132 and the side wall 133 is substantially constant from the position of the rotating body 62 to the position of the opening 125. The distance DS in the left-right direction between the side wall 132 and the side wall 133 may be changed so as to widen in the direction from the rotating body 62 toward the opening 125, but it is preferable that it not be changed so as to become narrow.

As described above, in the toilet seat device 10 according to the present embodiment, the rear wall 131 of the storage chamber 121 has a curved portion CP curved along a circle centered on the rotation axis 63. As a result, as shown by the solid arrow in FIG. 7, the mist M that is ejected radially from the rotating body 62 and collides with the rear wall 131 includes the rotational component and the curvature of the curved portion CP. This will allow it to be ejected smoothly to the front. Therefore, it is possible to prevent water from remaining on the rear side of the storage chamber 121. Therefore, it is possible to provide the toilet seat device 10 that can suppress the generation of residual water in the storage chamber 121 that accommodates the spray unit 60.

In addition, in the toilet seat device 10, since the side walls 132 and 133 are continuously connected to the rear wall 131, the water FW flowing toward the front along the rear wall 131 can be smoothly flowed to the side wall without suddenly decelerating. 132 and 133. Thereby, generation of residual water in the storage chamber 121 can be more reliably suppressed.

In addition, in the toilet seat device 10, since the opening 125 is continuously connected to the side walls 132 and 133, the water FW flowing toward the front side along the side walls 132 and 133 can be flowed from the opening 125 without being suddenly decelerated. It can be ejected forward. Thereby, generation of residual water in the storage chamber 121 can be more reliably suppressed.

Furthermore, by setting the distance DS in the left-right direction between the side walls 132 and 133 in the front side of the rotating body 62 to be equal to or larger than the width in the left-right direction of the rotating body 62, the side walls 132 and 133 can prevent mist. It is possible to prevent the water FW from interfering with the spraying of M, and also to make it easier to discharge the water FW flowing toward the front side along the side walls 132 and 133.

FIG. 8 is a cross-sectional view schematically showing a modification of the spray section and storage chamber of the toilet seat device according to the embodiment.
Components that are substantially the same in function and configuration as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. This also applies to other embodiments described below.
As shown in FIG. 8, in this example, the rear wall 131 of the storage chamber 121 has a curved portion CP provided at the connection portion with the side wall 132 and a curved portion CP provided at the connection portion with the side wall 133. It has two curved parts CP and a straight part SP provided between the two curved parts CP. That is, in this example, the rear wall 131 is formed in a curved shape so that the corners with the side walls 132 and 133 are rounded.

In this way, the rear wall 131 does not necessarily have to be entirely curved, and may have a straight portion in part. The curved portion CP does not necessarily have to be circularly curved with a constant curvature. The curved portion CP may be, for example, a curved surface whose curvature changes. The curved portion CP may be any curved surface that curves at least along a circle centered on the rotation axis 63.

The number of curved portions CP provided on the rear wall 131 is not limited to one or two, and may be three or more. The shape of the rear wall 131 may be any shape that has at least one curved portion CP and can smoothly discharge the mist M colliding with the rear wall 131 to the front side.

FIG. 9 is a cross-sectional view schematically showing a modification of the spray section and storage chamber of the toilet seat device according to the embodiment.
As shown in FIG. 9, in this example, the side walls 132, 133 are curved and connected to the rear wall 131. In this way, the side walls 132 and 133 do not necessarily have to extend in a straight line. The side walls 132 and 133 may have a smoothly curved portion or a shallowly bent portion.

The side walls 132 and 133 may be curved or bent, for example, as long as the side walls 132 and 133 do not have a step where the distance DS in the left-right direction between the side walls 132 and the side wall 133 changes rapidly. The side walls 132 and 133 may have any shape as long as the distance DS in the left-right direction between the side walls 132 and 133 increases substantially constant or continuously from the rotating body 62 toward the opening 125. Any shape is fine.

FIG. 10 is a cross-sectional perspective view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
FIG. 11 is a sectional view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
FIG. 11 is a sectional view of the storage chamber in FIG. 10 viewed from the direction of arrow DD. Further, in FIGS. 10 and 11, illustration of the spray section 60 is omitted for convenience.
As shown in FIGS. 10 and 11, in this example, the storage chamber 121 has drainage parts 141 and 142.

The drainage part 141 opens downward, and causes the water FW flowing forward along the side wall 132 and the bottom wall 134 as the mist M is sprayed to fall downward. The drainage portion 141 is, for example, in the form of a through hole provided in the bottom wall 134 and the bottom wall portion 122 so as to be in contact with the side wall 132.

The drainage part 142 opens downward, and causes the water FW flowing forward along the side wall 133 and the bottom wall 134 as the mist M is sprayed to fall downward. The drainage portion 142 is, for example, in the form of a through hole provided in the bottom wall 134 and the bottom wall portion 122 so as to be in contact with the side wall 133 .

Moreover, the drainage parts 141 and 142 are in the form of through holes and in the form of cylinders extending downward. Thereby, the water FW can be dropped downward more reliably.

As shown in FIG. 7 and the like, when the rotating body 62 is rotated clockwise, water FW flows along the side wall 133 and the bottom wall 134. In this case, the water FW can be allowed to fall downward from the drainage section 142. On the other hand, when the rotating body 62 is rotated counterclockwise, the water FW flows along the side wall 132 and the bottom wall 134. In this case, the water FW can be caused to fall downward from the drainage section 141.

By providing the two drainage parts 141 and 142 in this way, the water FW can be appropriately dropped downward regardless of whether the rotating body 62 is rotated clockwise or counterclockwise. However, if the rotational direction of the rotating body 62 is determined in advance, only one of the drainage parts 141 and 142 may be provided.

As shown in FIG. 11, in this example, the bottom wall 134 moves downward from the rear side of the drainage section 142 toward the drainage section 142, and drains water FW flowing forward along the side wall 133 and the bottom wall 134. It has a guide portion 144 that guides the portion 142 .

The guide portion 144 is, for example, an inclined surface that slopes downward toward the drainage portion 142 from the rear side of the drainage portion 142 . In this example, for example, the bottom wall 134 is a downwardly inclined slope, and the bottom wall 134 itself functions as the guide portion 144. Therefore, the bottom wall 134 lowers downward from the rear side of the drainage part 141 toward the drainage part 141, and also serves as a guide part that guides the water FW flowing forward along the side wall 132 and the bottom wall 134 to the drainage part 141. Function.

Note that the guide portion 144 is not limited to an inclined surface, and may have a curved surface that is concave or convex, for example. The guide portion 144 does not necessarily have to be the entire bottom wall 134. For example, a portion of the bottom wall 134 may be made to function as the guide portion 144 by inclining or curving the portion.

In this example, since the water FW flowing forward along the side walls 132, 133 and the bottom wall 134 can be caused to fall downward before the opening 125, the water FW flowing forward along the side walls 132, 133 and the bottom wall 134 can be dropped downward before the opening 125. It is possible to prevent the mist-like water FW from interfering with the mist M sprayed from the opening 125 and reducing the amount of the mist M. Therefore, the mist M can be sprayed more efficiently into the interior of the toilet bowl 100 or onto the toilet seat portion 14. Furthermore, it is also possible to prevent a large amount of water FW from being discharged from the opening 125 (opening 128) during spraying of the mist M, thereby reducing the appearance of the sprayed mist M.

In this example, the bottom wall 134 is lowered from the rear side of the drainage parts 141, 142 toward the drainage parts 141, 142, and drains water FW flowing forward along the side walls 132, 133 and the bottom wall 134. By having the guide part 144 that guides the parts 141 and 142, the non-mist water FW flowing forward along the side walls 132 and 133 and the bottom wall 134 can be more easily discharged from the drainage parts 141 and 142. can.

FIG. 12 is a cross-sectional perspective view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
As shown in FIG. 12, in this example, the storage chamber 121 is provided in the bottom wall 134 and the bottom wall part 122 continuously between the side walls 132 and 133 so as to be in contact with the side walls 132 and 133. It has one through-hole-shaped drainage part 143.

In this way, in the case where a through-hole-shaped drainage section is provided, one drainage section 143 that is continuous between the side wall 132 and the side wall 133 may be used instead of providing the two drainage sections 141 and 142. In this case as well, the same effect as when the drainage sections 141 and 142 are provided can be obtained.

FIG. 13 is a sectional view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
As shown in FIG. 13, in this example, the guide portion 144 (bottom wall 134) has a chamfered portion 144a that increases the slope at the boundary with the through-hole-shaped drainage portion 142. In this example, the chamfered portion 144a is shown as a curved surface, but the chamfered portion 144a is not limited to this, and may have an inclined surface shape with a large inclination.

In this example, by providing the chamfered portion 144a, the upper end 142a on the front side of the drainage portion 142 is arranged at a higher position than the lower end 144b of the guide portion 144.

In this way, by arranging the upper end 142a on the front side of the drainage part 142 at a higher position than the lower end 144b of the guide part 144, the non-mist water FW flowing forward along the side wall 133 and the bottom wall 134 can be , can be prevented from jumping over the drainage part 142 and heading toward the opening 125 side. Therefore, the non-mist water FW flowing forward along the side wall 133 and the bottom wall 134 can be more easily discharged from the drainage section 142.

Note that the configuration in which the upper end 142a of the front side of the drainage part 142 is arranged at a higher position than the lower end 144b of the guide part 144 is not limited to the chamfered part 144a. Any configuration that can be placed higher than the lower end 144b of 144 may be used.

FIG. 14 is a cross-sectional perspective view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
As shown in FIG. 14, when two drainage parts 141 and 142 are provided, the drainage parts 141 and 142 are not limited to the shape of a through hole, but may have a cutout shape. The drainage parts 141 and 142 have an arbitrary structure that opens downward and allows the water FW flowing forward along the side walls 132 and 133 and the bottom wall 134 to fall downward as the mist M is sprayed. good.

FIG. 15 is a sectional view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
As shown in FIG. 15, in this example, the lower surface 12c of the main body portion 12 has a spread suppressing portion 150. The spread suppression section 150 is provided around the drainage sections 141 and 142, and suppresses the water FW discharged from the drainage sections 141 and 142 from spreading along the lower surface 12c of the main body section 12. In other words, the lower surface 12c of the main body portion 12 is the lower surface of the bottom wall portion 122. The spread suppressing portion 150 is, for example, in the shape of a groove that is recessed upward from the lower surface 12c.

FIG. 16 is a bottom view schematically showing a modification of the toilet seat device according to the embodiment.
As shown in FIG. 16, the groove-shaped spread suppressing portion 150 is provided, for example, so as to surround the rear and sides of the drainage portions 141 and 142. Further, the spread suppressing section 150 surrounds the rear and sides of the drainage sections 141 and 142 and is continuously provided up to the front end 122a of the bottom wall section 122. In other words, the spread suppressing portion 150 is provided so as to surround the opening 125 .

Further, as shown in FIG. 15 , the portion of the spread suppressing portion 150 located behind the drainage portions 141 and 142 is located forward of the upper surface 103 on the rear side of the rim portion 102 of the toilet bowl 100. In other words, the portion of the spread suppressing portion 150 located behind the drainage portions 141 and 142 is located between the drainage portions 141 and 142 and the upper surface 103 of the toilet bowl 100. Thereby, water flowing along the lower surface 12c can be prevented from entering between the lower surface 12c and the upper surface 103 of the toilet bowl 100. Furthermore, when the spread of water flowing along the lower surface 12c is suppressed, the water flowing along the lower surface 12c can be allowed to fall into the bowl portion 101.

In this way, by providing the spread suppressing section 150, the water FW discharged downward from the drainage sections 141 and 142 passes along the lower surface 12c of the main body section 12 and wets a wide range of the lower surface 12c of the main body section 12. It is possible to suppress such things.

FIG. 17 is a sectional view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
Like the spread suppressing part 152 shown in FIG. 17, the spreading suppressing part 152 is not limited to a groove shape, and may be, for example, a protrusion shape that projects downward from the lower surface 12c. The structure of the protrusion-like spread suppressing part 152 can be the same as the structure of the groove-like spread suppressing part 150, except for the difference in unevenness. Even when such a protrusion-like spread suppressing portion 152 is used, the same effect as the groove-like spread suppressing portion 150 can be obtained.

FIG. 18 is a sectional view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
FIG. 19 is a sectional view schematically showing a modification of the storage chamber of the toilet seat device according to the embodiment.
As shown in FIGS. 18 and 19, in this example, the width WD1 of the opening 128 of the main body 12 in the left-right direction is narrower than the width WD2 of the opening 125 of the storage chamber 121 in the left-right direction. Further, in this example, the front end 122a of the bottom wall portion 122 is located further back than the front wall portion 126. As a result, in this example, the space between the front end 122a of the bottom wall 122 and the front wall 126 opens downward, and as the mist M is sprayed, it moves forward along the side walls 132, 133 and the bottom wall 134. It functions as a drainage part 160 that causes the water FW flowing in the water to fall downward. In this way, the drainage section 160 may be a space between the bottom wall section 122 and the front wall section 126.

As shown in FIG. 19, in this example as well, the bottom wall 134 is lowered from the rear side of the drainage part 142 toward the drainage part 142, and the water flowing forward along the side walls 132, 133 and the bottom wall 134 is It has a guide part 162 that guides the FW to the drainage part 160. As above, in this example, the bottom wall 134 itself functions as the guide portion 162.

The guide portion 162 (bottom wall 134) has a chamfered portion 162a that increases the slope at the boundary with the drainage portion 160. The lower end 126a of the front wall portion 126 is disposed below the lower end 162b of the guide portion 162. That is, the lower end 126a of the front wall portion 126 is disposed at the same height as the lower end 162b of the guide portion 162, or at a position lower than the lower end 162b of the guide portion 162.

In this way, by arranging the lower end 126a of the front wall part 126 below the lower end 162b of the guide part 162, the non-mist water FW flowing forward along the side walls 132, 133 and the bottom wall 134 can be diverted from the front wall. The water FW can be applied to the inner surface of the portion 126 to fall downward. Thereby, the non-mist water FW can be prevented from jumping over the drainage section 160 and being discharged forward from the opening 128, and can be more easily discharged from the drainage section 160.

Further, in this example, as described above, the width WD1 of the opening 128 of the main body 12 in the left-right direction is narrower than the width WD2 of the opening 125 of the storage chamber 121 in the left-right direction. As a result, the non-mist water FW flowing forward along the side walls 132, 133 can also be applied to the inner surface of the front wall portion 126, and the non-mist water FW flowing forward along the side walls 132, 133 can also be It can be made easier to fall downward.

Therefore, in this example, it is possible to further suppress the non-mist water FW from interfering with the mist M sprayed from the opening 125 and reducing the amount of the mist M. Furthermore, it is possible to more reliably suppress a situation in which a large amount of water FW is discharged from the opening 125 (opening 128) during spraying of the mist M, and the appearance of the sprayed mist M is degraded.

As a toilet seat device based on the embodiment described above, for example, the following aspects can be considered.

A first aspect includes a main body disposed at the rear of the toilet bowl, a toilet seat rotatably supported by the main body, and a mist sprayed onto at least one of the inside of the toilet bowl and the toilet seat. and a control device that controls the operation of the spraying section, the main body has a storage chamber that stores the spraying section, and the spraying section is centered around a rotation axis extending in the vertical direction. the storage chamber has a rotating body that rotates, and the mist is sprayed by supplying liquid onto the rotating body, the storage chamber has a rear wall, a side wall, and a bottom wall; The toilet seat device is characterized in that the rear wall has a curved portion curved along a circle centered on the rotation axis.

According to this toilet seat device, the rear wall of the storage chamber has a curved portion curved along a circle centered on the rotation axis. As a result, the mist ejected radially from the rotating body so as to include a rotational component and collided with the rear wall is smoothly discharged to the front side using the rotational component and the curvature of the curved portion. Therefore, it is possible to prevent water from remaining on the rear side of the storage chamber. Therefore, it is possible to provide a toilet seat device that can suppress the occurrence of residual water in the storage chamber that accommodates the spray section.

A second aspect is the toilet seat device according to the first aspect, wherein the side wall is continuously connected to the rear wall.

According to this toilet seat device, water flowing toward the front along the rear wall can be caused to smoothly flow along the side wall without being suddenly decelerated. Thereby, generation of residual water in the storage chamber can be more reliably suppressed.

In a third aspect, in the first or second aspect, the storage chamber has an opening in front that sprays the mist forward, and the opening is continuously connected to the side wall. This is a toilet seat device with special features.

According to this toilet seat device, water flowing forward along the side wall can be discharged forward from the opening without suddenly decelerating the water. Thereby, generation of residual water in the storage chamber can be more reliably suppressed.

In a fourth aspect, in any one of the first to third aspects, the storage chamber opens downward and allows water to flow forward along the side wall and the bottom wall as the mist is sprayed. This toilet seat device is characterized by having a drainage part that allows the toilet to fall downward.

According to this toilet seat device, the water flowing forward along the side walls and the bottom wall can be caused to fall downward before the opening, so that the non-mist water flowing forward along the side walls and the bottom wall can be It is possible to prevent the mist from interfering with the mist sprayed from the sprayer and reducing the amount of mist. Therefore, the mist can be more efficiently sprayed onto the inside of the toilet bowl or onto the toilet seat. Furthermore, it is possible to prevent a large amount of water from being discharged from the openings during mist spraying, thereby reducing the appearance of the mist spray.

In a fifth aspect, in the fourth aspect, the bottom wall lowers downward from the rear side of the drainage section toward the drainage section, and directs the water flowing forward along the side wall and the bottom wall. The toilet seat device is characterized by having a guide portion that guides the water to the drainage portion.

According to this toilet seat device, the bottom wall is lowered from the rear side of the drainage part toward the drainage part, and has a guide part that guides water flowing forward along the side wall and the bottom wall to the drainage part. Non-mist water flowing forward along the side wall and the bottom wall can be more easily discharged from the drainage section.

In a sixth aspect, based on the fifth aspect, the drainage part has a through-hole shape that opens downward, and the upper end of the front side of the drainage part is arranged at a higher position than the lower end of the guide part. This is a toilet seat device characterized by the fact that

According to this toilet seat device, non-mist water flowing forward along the side wall and the bottom wall can be prevented from jumping over the drainage part and heading toward the opening side. Therefore, non-mist water flowing forward along the side wall and the bottom wall can be more easily discharged from the drainage section.

In a seventh aspect, in any one of the fourth to sixth aspects, the lower surface of the main body is provided around the drainage part, and the water discharged from the drainage part is directed to the lower surface of the main body. This toilet seat device is characterized by having a protrusion-like or groove-like spread suppressing portion that suppresses spread along the toilet seat.

According to this toilet seat device, it is possible to prevent water discharged downward from the drainage portion from flowing along the lower surface of the main body and wetting a wide range of the lower surface of the main body.

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, size, material, arrangement, installation form, etc. of each element included in the toilet bowl, toilet seat device, etc. are not limited to those illustrated, and can be changed as appropriate. Furthermore, the elements provided in each of the embodiments described above can be combined to the extent technically possible, and combinations of these are also included within the scope of the present invention as long as they include the features of the present invention.

1 toilet device, 10 toilet seat device, 12 main body, 12a front wall, 12b bottom wall, 14 toilet seat portion, 14a seat surface, 14b back surface, 16 toilet lid, 20 seating detection sensor, 22 human body detection sensor, 24 manual operation section, 26 Toilet seat motor, 28 Toilet lid motor, 30 Toilet seat heater, 32 Air blower, 34 Warm air heater, 36 Air direction changing unit, 36a Air blow damper, 40, 41, 42, 43 Pipe line, 43a Water supply port, 50 Solenoid valve , 52 vacuum breaker, 54 sterilization device, 56 switching valve, 58 body washing function section, 58a nozzle, 58b nozzle motor, 58c nozzle washing chamber, 58d nozzle damper, 60 spraying section, 61 motor, 62 rotating body, 63 rotating shaft, 70 control device, 100 toilet bowl, 101 bowl part, 102 rim part, 103 top surface, 104 inner wall surface, 120 opening, 121 storage chamber, 122 bottom wall part, 123 side wall part, 124 top wall part, 125 opening, 126 front wall part , 128 opening, 131 rear wall, 132 side wall, 133 side wall, 134 bottom wall, 141 drainage section, 142 drainage section, 143 drainage section, 144 guide section, 150 spread suppression section, 152 spread suppression section, 160 drainage section, 162 Guide part, M mist, FW water

Claims (7)

A main body portion located at the rear of the toilet bowl;
a toilet seat rotatably supported by the main body;
a spraying unit that sprays mist onto at least one of the interior of the toilet bowl and the toilet seat;
a control device that controls the operation of the spray section;
Equipped with
The main body has a storage chamber that stores the spray unit,
The spraying unit has a rotating body that rotates around a rotating shaft extending in the vertical direction, and sprays the mist by supplying liquid onto the rotating body,
The storage chamber has a rear wall, a side wall, and a bottom wall,
The toilet seat device is characterized in that the rear wall of the storage chamber has a curved portion curved along a circle centered on the rotation axis. The toilet seat device according to claim 1, wherein the side wall is continuously connected to the rear wall. The storage chamber has an opening in front that sprays the mist forward,
The toilet seat device according to claim 1 or 2, wherein the opening is continuously connected to the side wall. 4. The storage chamber according to claim 1, wherein the storage chamber has a drainage section that opens downward and allows water flowing forward along the side wall and the bottom wall to fall downward as the mist is sprayed. The toilet seat device according to any one of the above. The bottom wall is characterized by having a guide part that descends downward from the rear side of the drainage part toward the drainage part and guides the water flowing forward along the side wall and the bottom wall to the drainage part. The toilet seat device according to claim 4. The drainage part has a through-hole shape that opens downward,
6. The toilet seat device according to claim 5, wherein the upper end of the front side of the drainage part is arranged at a higher position than the lower end of the guide part. The lower surface of the main body part has a protrusion-like or groove-like spread suppressing part provided around the drainage part and suppressing water discharged from the drainage part from spreading along the lower surface of the main body part. The toilet seat device according to any one of claims 4 to 6, characterized in that:

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