JP7213021B2 - toilet bowl device - Google Patents

Description

The present invention relates to a toilet device.

Conventionally, there has been proposed a toilet apparatus capable of washing the back surface of a toilet seat with washing water. For example, Patent Literature 1 discloses a toilet device capable of spouting cleansing water from a spout provided on the toilet seat along the back surface of the toilet seat.

JP-A-2002-54216

There is room for improvement in conventional toilet devices from the viewpoint of preventing leakage of washing water for washing the back of the toilet seat to the outside.

The present invention has been made in view of such circumstances, and one of the objects of certain aspects thereof is to provide a toilet device that can more accurately prevent leakage of wash water for washing the back of the toilet seat to the outside.

In order to solve the above-described problems, a toilet device according to one aspect of the present invention is a toilet device configured to be able to perform toilet seat back cleaning, in which the back side of a toilet seat is cleaned by supplying a cleaning liquid to the back side of the toilet seat. When the is in the non-closed state, do not wash the back of the toilet seat.

Another aspect of the invention is a toilet seat unit. This toilet seat unit is configured to be able to wash the back surface of the toilet seat by supplying cleaning liquid to the back surface, and does not clean the back surface of the toilet seat when it is in the non-closed state.

ADVANTAGE OF THE INVENTION According to this invention, the leakage to the outside of the wash water for wash|cleaning a toilet seat back can be suppressed more accurately.

1 is a perspective view of a toilet system in which a toilet device according to an embodiment is used; FIG. Figure 2 is a perspective view of the toilet seat unit and box of Figure 1; Figure 2 is a bottom view of the toilet seat unit and box of Figure 1; 2 is an enlarged cross-sectional view showing an enlarged part of the toilet device of FIG. 1; FIG. 2 is a block diagram showing a control system of the toilet system of FIG. 1; FIG. It is a side view which shows the toilet bowl apparatus of embodiment as a modification. 7(a) and 7(b) are cross-sectional views showing a sealing member and its surroundings according to a modification, respectively. It is a cross-sectional view of a toilet device according to a modification. It is a cross-sectional view of a toilet device according to a modification.

Hereinafter, the same or equivalent constituent elements and members shown in each drawing are denoted by the same reference numerals, and duplication of description will be omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in each drawing, some of the members that are not important for explaining the embodiments are omitted. Further, in this specification, "upper", "lower", "left", and "right" respectively refer to upper, lower, left, and right as seen from the user who uses the bathroom vanity. Also, "front" and "rear" refer to the near side and the far side, respectively, when viewed from the user.

FIG. 1 is a perspective view of a toilet system in which a toilet device 10 according to an embodiment is used. FIG. 2 is a perspective view of the toilet seat unit 16 and the box 20. FIG. The toilet system 1 includes a toilet device 10 installed in a toilet room (private room) and a remote control device 8 installed on the wall surface of the toilet room. The remote control device 8 includes a plurality of input sections 8a and a display section 8b. The input unit 8a includes buttons for starting and stopping toilet seat back washing, buttons for opening and closing the toilet seat 22 (described later), and the like.

The toilet device 10 includes a toilet body 14 , a toilet seat unit 16 and a box 20 . The toilet bowl body 14 includes a substantially funnel-shaped toilet bowl 12 for receiving waste, and an outer peripheral wall portion 13 surrounding the outer peripheral side of the toilet bowl 12 and a toilet drainage channel (not shown) so as to hide them. A box 20 is provided above the rear portion of the toilet body 14 . Various parts are accommodated in the box 20 .

The toilet seat unit 16 includes a toilet seat 22 , a toilet lid 24 , a shutter 38 and a toilet seat opening/closing motor 40 . In the description of the toilet seat unit 16, directions are expressed with reference to when the toilet seat 22 is in the closed state.

The toilet seat 22 is rotatably attached to the box 20 via a hinge mechanism (not shown). The toilet seat 22 is generally annular in shape and has a central opening 32 for the passage of waste excreted by a seated user. Also, the toilet seat 22 is formed hollow and accommodates at least one functional component therein. A functional component is a component that is used in association with the toilet body 14 and performs a predetermined function. In this example, behind the central opening 32 are housed three second functional components: a private cleaning device 26, a drying device 28 and a deodorizing device 30. As shown in FIG.

An opening 36 is formed behind the central opening 32 on the back surface of the toilet seat 22 to communicate the inside and outside of the toilet seat 22 . The shutter 38 is configured to open and close the opening 36 . When operating the private parts washing device 26, the drying device 28, and the deodorizing device 30, the opening 36 is opened.

The private parts washing device 26 washes the private parts of the user sitting on the toilet seat 22 . The deodorizing device 30 sucks and deodorizes the odor generated in the toilet bowl 12 .

The drying device 28 sucks gas (air) with a fan (not shown), heats the sucked air with a heater (not shown), and blows out the warmed air as dry air. The drying device 28 blows dry air onto the user's private parts to dry them. Further, the drying device 28 dries the toilet seat back by blowing dry air onto the toilet seat back after washing the toilet seat back, as will be described later.

The toilet seat opening/closing motor 40 is housed inside the toilet seat 22 . As the rotating shaft 40a of the toilet seat opening/closing motor 40 rotates, the toilet seat 22 opens and closes. Hereinafter, the state in which the toilet seat 22 is laid down on the toilet bowl 12 of the toilet body 14 is referred to as the "closed state". FIG. 1 shows the toilet seat 22 in a closed state.

Like the toilet seat 22, the toilet lid 24 is rotatably attached to the box 20 via a hinge mechanism (not shown). The toilet lid 24 is driven by a toilet lid opening/closing motor (not shown) to open and close.

3 is a bottom view of the toilet seat unit 16 and box 20. FIG. The toilet device 10 further includes a toilet seat back cleaning mechanism 42 for cleaning the back surface 22a of the toilet seat 22 with cleaning liquid, and a sealing member 60 for suppressing leakage of the cleaning liquid.

The toilet seat back cleaning mechanism 42 includes at least one (five in this example) ejection section 46 capable of ejecting cleaning liquid along the back surface 22a of the toilet seat 22, and a liquid supply path for supplying the cleaning liquid to the ejection section 46. 48 , and an on-off valve 50 provided in the middle of the liquid supply path and capable of opening and closing the liquid supply path 48 . The on-off valve 50 is, for example, an electromagnetic valve, and opens and closes according to a control command from a control section 70 (described later). The liquid supply path 48 is configured by a hose or the like arranged inside the box 20 or the toilet seat 22 . The liquid supply channel 48 includes a common channel 48 a and at least one branch channel 48 b branched from the common channel 48 a and connected to each discharge section 46 .

The discharge part 46 is formed integrally with the toilet seat 22 on the back surface 22a of the toilet seat 22 in this embodiment. The discharge part 46 has an inlet (not shown) connected to the branch path 48b, a discharge port 46a for discharging the cleaning liquid, and a communication hole (not shown) communicating the inlet and the discharge port 46a.

When the on-off valve 50 opens the liquid supply path 48 , the cleaning liquid is supplied from the liquid supply path 48 to the discharge section 46 , and the cleaning liquid is discharged from the discharge port 46 a of the discharge section 46 along the back surface 22 a of the toilet seat 22 . Thereby, the back surface 22a of the toilet seat 22 is washed. When the on-off valve 50 closes the liquid supply path, the supply of the cleaning liquid from the liquid supply path 48 to the discharge section 46 is stopped, and the discharge of the cleaning liquid from the discharge section 46 is stopped.

FIG. 4 is an enlarged cross-sectional view showing an enlarged part of the toilet device 10. As shown in FIG. The sectional view of the toilet seat 22 in FIG. 4 corresponds to the sectional view taken along line AA in FIG. Reference is made to FIG. 4 in addition to FIG. The sealing member 60 is an elastic body such as rubber. The seal member 60 is fixed to the back surface 22a of the toilet seat 22 with, for example, an adhesive. The sealing member 60 is provided on the outside of the discharge portion 46, that is, on the opposite side of the discharge portion 46 to the central opening portion 32, and is sandwiched between the toilet seat 22 and the toilet bowl 12 when the toilet seat 22 is in the closed state. To suppress leakage of washing liquid from between a toilet seat 22 and a toilet bowl 12 in washing. The sealing member 60 is preferably annular as shown in FIG. 3 and is fixed to the back surface 22a of the toilet seat 22 so as to surround the central opening 32 and all the outlets 46 when the toilet seat 22 is in the closed state. Sometimes, the entire circumference is sandwiched between the toilet seat 22 and the toilet bowl 12. - 特許庁

For example, due to manufacturing errors, the contact surfaces of the toilet bowl 12 and the toilet seat 22 with the seal member 60 may not be flat. In this case, simply closing the toilet seat 22 creates a gap between the sealing member 60 and the toilet seat 22 and/or the toilet bowl 12, through which the cleaning liquid may leak. Therefore, at least during washing of the back of the toilet seat, the toilet seat 22 is pressed (biased) against the toilet bowl 12 to increase the degree of close contact between the sealing member 60 and the toilet seat 22 and the toilet bowl 12, that is, the sealing member 60 and the toilet seat 22. And the gap with the toilet bowl 12 is reduced. In the present embodiment, the toilet seat opening/closing motor 40 continues to rotate in the direction in which the toilet seat 22 is closed while the back of the toilet seat is being washed, as will be described later. Thereby, the state in which the toilet seat 22 is pressed against the toilet bowl 12 is maintained.

Here, generally, the toilet seat 22 is made of resin, and the toilet bowl 12 is made of pottery. Pottery has a lower processing accuracy than resin, and therefore the manufacturing error of the toilet bowl 12 is relatively large. Also, the seal member 60 and the toilet seat 22 may be fixed with an adhesive or the like so as not to create a gap therebetween. Therefore, in this embodiment, the sealing member 60 is crushed at least more than the tolerance of the toilet bowl 12 (for example, 3 mm to 7 mm) so that the degree of close contact between the sealing member 60 and the toilet bowl 12 is increased, that is, the sealing member 60 and the toilet bowl. The hardness of the sealing member 60 and the pressing force for pressing the toilet seat 22 against the toilet bowl 12 are determined so that the gap with the toilet bowl 12 is reduced. These may be determined by experiments.

As a modification, the sealing member 60 may be fixed to the upper surface 12 a of the toilet bowl 12 . Also in this case, the sealing member 60 is preferably formed in an annular shape so as to surround all the discharge portions 46 when the toilet seat 22 is in the closed state and to be sandwiched between the toilet seat 22 and the toilet bowl 12 along the entire circumference. provided in

FIG. 5 is a block diagram showing the control system of the toilet system 1. As shown in FIG. Each block shown here can be implemented by hardware such as a computer CPU (central processing unit) or other elements or mechanical devices, and is implemented by software such as a computer program. The functional blocks realized by their cooperation are drawn. Therefore, those skilled in the art who have read this specification will understand that these functional blocks can be implemented in various ways by combining hardware and software.

The toilet device 10 further includes a human body detection sensor 52 , a contact detection sensor (seating detection sensor) 54 , an open/close detection sensor 56 and a controller 70 .

The human body detection sensor 52 detects a human body (user) within a predetermined detection range in a non-contact manner. In this embodiment, the human body detection sensor 52 is configured to detect a user in the toilet room (private room). The human body detection sensor 52 is provided at a position where a human body can be detected regardless of whether the toilet seat 22 and the toilet lid 24 are opened or closed. The human body detection sensor 52 transmits the detection result to the control section 70 .

The contact detection sensor 54 is, for example, an electrostatic sensor, and detects the user's contact with the toilet seat 22 . Specifically, the contact detection sensor 54 detects contact (sitting) when the user sits on the toilet seat 22 and the user's buttocks touch the toilet seat 22 . Further, the contact detection sensor 54 detects contact when the user tries to raise the toilet seat 22 and touches the toilet seat 22 with the user's hand. The contact detection sensor 54 transmits the detection result to the controller 70 .

The opening/closing detection sensor 56 is, for example, an angle sensor, and detects opening/closing of the toilet seat 22 . The open/close detection sensor 56 transmits the detection result to the control unit 70 .

Control unit 70 includes communication unit 72 , operation control unit 74 , and storage unit 76 . The communication unit 72 receives a radio signal transmitted from the remote control device 8 and identifies the operation content of the toilet device 10 by the user.

The operation control unit 74 controls the start and stop of toilet seat back cleaning by the toilet seat back cleaning mechanism 42 . Further, the operation control unit 74 controls the drying of the toilet seat back by the drying device 28 after the toilet seat back is washed. A specific description will be given below.

The start control of toilet seat back washing will be described. When the toilet seat 22 is in the closed state and, for example, one of the following starting conditions A1 to A4 is satisfied, the operation control unit 74 starts washing the back of the toilet seat. Specifically, when the toilet seat 22 is closed, the operation control unit 74 first continues to rotate the rotary shaft 40a of the toilet seat open/close motor 40 in the direction of rotation of the rotary shaft 40a. As a result, the toilet seat 22 is pressed against the toilet bowl 12, and the close contact between the sealing member 60 and the toilet seat 22 and the toilet bowl 12 is increased. The operation control unit 74 causes the on-off valve 50 to open the liquid supply path 48 in this state. For A2 to A4, the user may be able to select the start condition to be adopted.

A1. When the user operates the remote control device to start washing the back of the toilet seat

A2. When the Preliminarily Scheduled Toilet Seat Back Washing Start Time Arrives A schedule for executing the toilet seat back washing is stored in the storage unit 76 in advance. The operation control unit 74 periodically refers to the storage unit 76 and starts washing the back of the toilet seat at the scheduled date and time. The toilet seat back cleaning may be scheduled to run at a fixed time, for example, once a day, or may be scheduled to run at a fixed time, for example, once a week, or For example, it may be scheduled to run at a fixed time on a particular day of the week.

A3. When a predetermined time has elapsed since the previous execution of toilet seat back washing The operation control unit 74 sets a predetermined time (for example, 1 hour, 3 hours, or 5 hours) from the previous toilet seat back washing based on the start time of the toilet seat back washing, for example. Executes when elapses. In this case, the predetermined time is stored in the storage unit 76 in advance. The storage unit 76 also stores the execution time (for example, start time) of the previous toilet seat back washing. The operation control unit 74 periodically refers to the storage unit 76, and if a predetermined time has passed since the previous toilet seat back cleaning start time, the toilet seat back cleaning is started. When the toilet seat back washing is started, the operation control unit 74 updates the execution time (start time) of the storage unit 76 to the current time.

A4. When the number of times of use of the toilet device 10 after the previous toilet seat back washing reaches a predetermined number of times The operation control unit 74 counts the number of times of use of the toilet device 10 by regarding the number of times of toilet bowl cleaning as the number of times of use of the toilet device 10 . In addition, toilet bowl cleaning refers to supplying cleaning water to the toilet bowl 12 to discharge excreted filth and cleaning the toilet bowl 12 . The number of times the toilet device 10 has been used is stored in the storage unit 76 . The operation control unit 74 increments the usage count of the storage unit 76 by one each time the toilet bowl is washed. When the number of times of use reaches a predetermined number, the operation control unit 74 starts washing the back of the toilet seat and clears the number of times of use in the storage unit 76 to zero. For example, if the predetermined number of times is 1, the back of the toilet seat is washed after each use of the toilet device 10, and if the predetermined number of times is 10, the back of the toilet seat is washed every 10 uses.

When the toilet seat 22 is in the open state even though any one of the start conditions A1 to A4 is met, the operation control unit 74 may skip the back washing of the toilet seat, but does not control the toilet seat open/close motor 40. The toilet seat 22 may be closed by pressing the button to start washing the back of the toilet seat.

Further, when the user operates the remote control device to start washing the back of the toilet seat, the user is considered to be in the toilet room immediately after that. In this case, the user may be notified to close the toilet seat 22 when the toilet seat 22 is in the open state even though one of the start conditions A1 to A4 is met. The notification may be an audio notification or a notification via the display unit 8b of the remote control device 8. FIG.

Next, the stop control of toilet seat back washing will be described. The operation control unit 74 stops the toilet seat back washing when any one of the following stopping conditions B1 to B6 is satisfied. Specifically, the operation control unit 74 first causes the on-off valve 50 to close the liquid supply path 48 . Then, the operation control section 74 stops the rotation of the rotating shaft 40a of the toilet seat opening/closing motor 40. As shown in FIG. Preferably, the operation control unit 74 stops the rotation of the rotating shaft 40a of the toilet seat opening/closing motor 40 after a predetermined time has elapsed since the opening/closing valve 50 was closed. This predetermined time is set to a time during which the cleaning liquid in the liquid supply passage 48, which has already passed the on-off valve 50, completely flows. For B4 to B6, the user may be able to select the start condition to be adopted.

B1. When cleaning the back of the toilet seat for the specified cleaning time

B2. When the user uses the remote control device to stop washing the back of the toilet seat

B3. When the user operates the remote control device to open the toilet seat 22 After stopping the toilet seat back washing, the operation control unit 74 controls the toilet seat opening/closing motor 40 to raise the toilet seat 22 . The operation control unit 74 raises the toilet seat 22 after a predetermined period of time has passed since the on-off valve 50 is closed and the discharge from the discharge unit 46 is surely stopped.

B4. When a human body is detected by the human body detection sensor 52 If there is a user in the toilet room, there is a risk that the washing liquid for cleaning the back of the toilet seat may splash around from the central opening 32 or the like, and the user may be splashed with the washing liquid. Further, while the toilet seat back is being washed, the toilet seat 22 is pressed against the toilet bowl 12 by the toilet seat opening/closing motor 40, but the user can raise the toilet seat 22 by applying a relatively large force. In this case, there is a risk that the cleaning liquid for cleaning the back of the toilet seat may scatter around. Therefore, when the human body detection sensor 52 detects a human body, that is, when the user enters the toilet room (private room), the operation control unit 74 stops washing the back of the toilet seat.

However, when the user operates the remote control device in the toilet room to start washing the back of the toilet seat, the washing of the back of the toilet seat is not stopped even if the human body detection sensor 52 detects it. Note that even if the remote control device is operated to start the toilet seat back washing, a user other than the user who started the toilet seat back washing may enter the room after a predetermined period of time has passed since the start. , the toilet seat back cleaning may be stopped when the human body detection sensor 52 detects.

B5. When the contact detection sensor 54 detects that the user has come into contact with the toilet seat 22 If the user sits on the toilet seat 22 while the back of the toilet seat is being washed, the washing liquid for cleaning the back of the toilet seat splatters from the central opening 32 or the like, causing the user to sit on the toilet seat. users who are Further, as described above, the user can lift the toilet seat 22 by applying a relatively large force even during toilet seat back washing, and in this case, there is a risk that the cleaning liquid for toilet seat back washing may scatter around. Therefore, when the contact detection sensor 54 detects that the user has touched the toilet seat 22, the operation control section 74 stops the toilet seat back washing.

B6. When the open/close detection sensor 56 detects that the toilet seat 22 is in the non-closed state As described above, the toilet seat 22 can be raised by applying a relatively large force even during the toilet seat back washing. There is a risk that the cleaning liquid may splatter around. Therefore, when the open/close detection sensor 56 detects that the toilet seat 22 is in the non-closed state, the operation control unit 74 stops the toilet seat back washing.

Next, drying control after washing the back of the toilet seat will be described.
When the toilet seat back cleaning by the toilet seat back cleaning mechanism 42 is stopped, the operation control unit 74 causes the drying device 28 to dry the toilet seat back if the toilet seat 22 is in the closed state. Specifically, the drying device 28 blows dry air onto the back surface of the toilet seat 22 . As a result, relatively large water droplets fall into the toilet bowl 12. - 特許庁Due to the air pressure of the dry air, the washing liquid adhering to the back surface of the toilet seat 22 gathers downstream of the dry air. The collected washing liquid forms relatively large water droplets, which fall into the toilet bowl 12 by receiving dry air. In addition, the drying device 28 blows (blows) warm air as dry air onto the back surface of the toilet seat 22 . As a result, the cleaning liquid attached to the back surface of the toilet seat 22 volatilizes. The velocity, temperature, and blowing time of the dry air can be determined by experiments.

Next, the effects of this embodiment will be described. According to the present embodiment, when the toilet seat 22 is in the non-closed state, the toilet seat back washing is not executed, so that the cleaning liquid discharged from the discharge part 46 is prevented from splashing around the toilet device 10 during the toilet seat back washing. be.

Further, according to the present embodiment, when the human body detection sensor 52 detects the user during the back washing of the toilet seat, that is, when it detects that the user has entered the toilet room (private room), the back washing of the toilet seat is stopped. As a result, it is possible to prevent the user from being splashed with the washing liquid for washing the back of the toilet seat. In addition, it is possible to prevent the user from raising the toilet seat 22 while cleaning the back of the toilet seat and causing the cleaning liquid to splash around the toilet device 10 .

Further, according to the present embodiment, when the contact detection sensor (seating detection sensor) 54 detects that the user has touched the toilet seat 22 during toilet seat back washing, the toilet seat back washing is stopped. For example, when the user sits on the toilet seat 22, toilet seat back washing is stopped. As a result, it is possible to prevent the user seated on the toilet seat 22 from being splashed with the washing liquid for washing the back of the toilet seat and making the user feel uncomfortable. Further, for example, when the user touches the toilet seat 22 to lift the toilet seat 22, washing of the toilet seat back is stopped. As a result, it is possible to prevent a situation in which the user raises the toilet seat 22 while cleaning the back of the toilet seat and the cleaning liquid splashes around the toilet device 10 .

Further, according to the present embodiment, when the opening/closing detection sensor 56 detects that the toilet seat 22 is in the non-closed state during washing of the back of the toilet seat, washing of the back of the toilet seat is stopped. As a result, when the user raises the toilet seat 22 , the back washing of the toilet seat is stopped, so that the cleaning liquid can be prevented from being splashed around the toilet device 10 .

Further, according to the present embodiment, the toilet seat 22 is pressed against the toilet bowl 12 during washing of the back of the toilet seat, in other words, the toilet seat 22 is biased in the closing direction. As a result, it becomes difficult to lift the toilet seat 22, and it is possible to prevent the user from lifting the toilet seat 22 while cleaning the back of the toilet seat and splashing the cleaning liquid around the toilet device 10.例文帳に追加Further, this increases the degree of close contact between the seal member 60 and the toilet seat 22 and the toilet bowl 12, and prevents the cleaning liquid for cleaning the back of the toilet seat from leaking out from between the toilet seat 22 and the toilet bowl 12. - 特許庁

Further, according to this embodiment, the toilet seat 22 is urged in the closing direction by the toilet seat opening/closing motor 40 . That is, the toilet seat 22 can be urged in the closing direction without separately providing a dedicated mechanism for urging the toilet seat 22 in the closing direction.

Moreover, according to the present embodiment, the sealing member 60 is preferably formed in an annular shape and is sandwiched between the toilet seat 22 and the toilet bowl 12 over the entire circumference. As a result, it is possible to more reliably prevent the cleaning liquid for cleaning the back of the toilet seat from leaking out from between the toilet seat 22 and the toilet bowl 12. - 特許庁

Further, according to the present embodiment, the back surface of the toilet seat 22 is dried by the drying device 28 after the toilet seat back surface is washed. As a result, it is possible to suppress the generation of mold and germs caused by the cleaning liquid (moisture) adhering to the back surface of the toilet seat 22, so that the toilet device 10 can be kept clean.

Further, according to the present embodiment, dry air is blown onto the back surface of the toilet seat 22 to dry the back surface of the toilet seat 22 . As a result, relatively large water droplets of the cleaning liquid adhering to the back surface of the toilet seat 22 fall onto the toilet bowl 12. - 特許庁Also, the washing liquid adhering to the back surface of the toilet seat 22 gathers downstream of the dry air due to the wind pressure of the dry air. The collected washing liquid forms relatively large water droplets, which fall into the toilet bowl 12 by receiving dry air. As a result, the back surface of the toilet seat 22 is dried.

Further, according to the present embodiment, in drying the back surface of the toilet seat 22, warm air is blown to the back surface of the toilet seat 22 as drying air. As a result, the cleaning liquid adhering to the back surface of the toilet seat 22 is volatilized, and as a result, the back surface of the toilet seat 22 is dried.

The toilet device 10 according to the embodiment has been described above. It should be understood by those skilled in the art that this embodiment is an example, and that various modifications can be made to the combination of each component, and that such modifications are within the scope of the present invention.

(Modification 1)
FIG. 6 is a side view showing the toilet device 10 of the embodiment as a modification. In this modified example, the locking mechanism prevents the toilet seat 22 from being lifted during washing of the back of the toilet seat, and the locking mechanism presses the toilet seat 22 against the toilet bowl 12 so that the sealing member 60 and the toilet seat 22 and the toilet bowl 12 are separated. Increase adhesion. Hereinafter, the toilet device 10 will be described with a focus on differences from the toilet device 10 according to the embodiment.

The toilet device 10 includes a toilet body 14 , a toilet seat unit 16 , a box (not shown), a toilet seat back washing mechanism (not shown), a sealing member (not shown), and a lock mechanism 80 .

The lock mechanism 80 is provided behind the toilet seat unit 16 . Lock mechanism 80 includes a lock pin 82 and a drive device 84 . The lock pin 82 is a bar-shaped member extending in the front-rear direction and fixed to the toilet body 14 via a drive device 84 . The driving device 84 is controlled by the operation control section 74 of the control section 70 to move the lock pin 82 back and forth. The toilet seat 22 is formed with a hole 22b into which the lock pin 82 can be inserted. When the lock pin 82 enters the hole 22b of the toilet seat 22, the toilet seat 22 is locked in the closed state. When the lock pin 82 retreats from the hole 22b of the toilet seat 22, the toilet seat 22 is unlocked. 6 shows a state in which the lock pin 82 has entered the hole 22b of the toilet seat 22 and the toilet seat 22 has been locked in the closed state.

When the toilet seat 22 is in the closed state and one of the start conditions A1 to A4 is satisfied, the operation control unit 74 starts the toilet seat back washing as in the embodiment. Specifically, when the toilet seat 22 is closed, the operation control unit 74 first continues to rotate the rotary shaft 40a of the toilet seat open/close motor 40 in the direction of rotation of the rotary shaft 40a. As a result, the toilet seat 22 is pressed against the toilet bowl 12, and the close contact between the sealing member 60 and the toilet seat 22 and the toilet bowl 12 is increased. In this state, the operation control section 74 controls the drive device 84 of the lock mechanism 80 to allow the lock pin 82 to enter the hole 22b and lock the toilet seat 22 in the closed state. The operation control unit 74 stops the rotation of the rotary shaft 40a of the toilet seat opening/closing motor 40. FIG. Since the toilet seat 22 is kept pressed against the toilet bowl 12 by the lock mechanism 80, even if the rotating shaft 40a of the toilet seat opening/closing motor 40 stops rotating, the sealing member 60 and the toilet seat 22 and the toilet bowl 12 are in close contact. The degree remains elevated. Then, the operation control unit 74 causes the on-off valve 50 to open the liquid supply path 48 .

Further, the operation control unit 74 stops the toilet seat back washing when any one of the stop conditions B1 to B6 is met, as in the embodiment. Specifically, the operation control unit 74 causes the on-off valve 50 to close the liquid supply path 48 . The operation control unit 74 then retracts the lock pin 82 from the hole 22b to unlock the toilet seat 22 .

According to the toilet device 10, it is possible to achieve the same effects as the toilet device 10 according to the embodiment. In addition, according to the toilet device 10, since the toilet seat 22 cannot be lifted during the toilet back washing, it is possible to prevent the user from lifting the toilet seat 22 during the toilet seat back washing and the washing liquid from splashing.

(Modification 2)
In the embodiment, the rotating shaft 40a of the toilet seat opening/closing motor 40 is kept rotating to urge the toilet seat 22 in the closing direction while the back of the toilet seat is being washed. If so, the toilet seat 22 is closed only when the back of the toilet seat is being washed and the human body detection sensor 52 detects a human body, that is, only when the back of the toilet seat is being washed and the user is in the toilet room. direction may be biased. Further, when the human body detection sensor 52 does not detect a human body, the rotation shaft 40a of the toilet seat opening/closing motor 40 continues to rotate at a relatively low rotation speed, and when the human body detection sensor 52 detects a human body, the toilet seat opening/closing motor rotates. 40 rotating shaft 40a may continue to rotate at a relatively high number of revolutions.

In the modified example described above, the locking mechanism 80 locks the toilet seat 22 so that it cannot be lifted while the back of the toilet seat is being washed. The toilet seat 22 is locked so that it cannot be lifted only when the toilet seat is being washed and the human body detection sensor 52 detects a human body, i.e., when the back of the toilet seat is being washed and the user is in the toilet room. You may

(Modification 3)
In the embodiment and the modified example described above, the operation control unit 74 does not care about the open/closed state of the toilet lid 24 for toilet seat back washing. may Specifically, the operation control unit 74 may prevent the toilet seat back washing from starting when the toilet seat 22 is in the closed state but the toilet lid 24 is in the non-closed state. In other words, the operation control unit 74 may start the toilet seat back washing when not only the toilet seat 22 but also the toilet lid 24 are in the closed state and any one of the start conditions A1 to A4 described above is satisfied. Further, if the toilet lid 24 is not closed during execution of the toilet seat back washing, the operation control unit 74 may stop the toilet seat back washing even if the toilet seat 22 is in the closed state. In these cases, even if the washing liquid for washing the back of the toilet seat flies out from the central opening 32 of the toilet seat 22 or the like, the toilet lid 24 will catch the liquid. In other words, it is possible to prevent the cleaning liquid for cleaning the back of the toilet seat from splashing out of the toilet device 10, thereby keeping the toilet room clean.

(Modification 4)
Although not specifically mentioned in the embodiment and the modified examples described above, various modified examples are conceivable for the configuration of the seal member 60 . 7A and 7B are cross-sectional views showing a seal member 60 and its surroundings according to a modification, respectively. 7A and 7B show the state before the toilet seat 22 is pressed against the toilet bowl 12. FIG.

In FIG. 7A, the seal member 60 is formed so that the toilet bowl 12 side (the side that is not fixed) becomes thinner as the distance from the toilet seat 22 increases. In this case, the toilet bowl 12 side of the sealing member 60 is easily deformed, and the degree of adhesion when the sealing member 60 is sandwiched between the toilet seat 22 and the toilet bowl 12 increases.

In FIG. 7B, the sealing member 60 is made of rubber, and includes a first portion 60a having a relatively high hardness (for example, a hardness of 60 degrees or more) on the side of the toilet seat 22 (fixed side), and a toilet bowl. It is integrated with the second portion 60b of relatively low hardness (for example, hardness of 30 or less) on the 12 side by two-color molding. In this case, the first portion 60 a having a high hardness receives the weight of the toilet seat 22 and the user so that the toilet seat 22 does not come into direct contact with the toilet bowl 12 . The second portion 60b with low hardness deforms greatly and comes into close contact with the toilet bowl 12. - 特許庁

(Modification 5)
FIG. 8 is a cross-sectional view of a toilet device according to a modification. FIG. 9 corresponds to FIG. Of the back surface 22a of the toilet seat 22, an inner portion 22a2 inside an outer portion 22a1 facing the upper surface 12a of the toilet bowl 12 is formed to be an inclined surface that is inclined with respect to the horizontal plane. In the example of FIG. 9, the cross-sectional shape of the inner portion 22a has an inverted U shape. According to this modified example, when the dry air is blown, the cleaning liquid adhering to the inner portion 22a falls down the toilet bowl 12 along the inclined surface. In other words, the cleaning liquid is easily removed.

(Modification 6)
FIG. 9 is a cross-sectional view of a toilet device according to a modification. FIG. 8 corresponds to FIG. In this modification, the toilet bowl 12 has an outer upper surface 12a1 and an inner upper surface 12a2 located inside and below the outer upper surface 12a1. The outer upper surface 12a1 and the inner upper surface 12a2 are connected by a connecting wall 12b. The sealing member 60 is sandwiched between the back surface 22a of the toilet seat 22 and the inner upper surface 12a2 when the toilet seat 22 is in the closed position. In this case, even if the cleaning liquid leaks out of the sealing member 60, the cleaning liquid is blocked by the connecting wall 12b. That is, according to this modified example, it is possible to more reliably suppress the leakage of the cleaning liquid.

(Modification 7)
Although not specifically mentioned in the embodiment, the toilet seat back cleaning by the toilet seat back cleaning mechanism 42 may have a plurality of cleaning modes with different cleaning modes. For example, the toilet seat back cleaning by the toilet seat back cleaning mechanism 42 may include a plurality of cleaning modes in which at least one of the following is different.
・Cleaning time (that is, cleaning liquid ejection time)
・Total discharge flow rate discharged from all discharge ports 46a ・Temperature of cleaning liquid ・Type of cleaning liquid (for example, water, water containing detergent, etc.)

For example, the toilet seat back cleaning by the toilet seat back cleaning mechanism 42 includes a first cleaning mode, a second cleaning mode with a longer cleaning time than the first cleaning mode and a higher discharge flow rate, and a cleaning mode with a higher discharge rate than the second cleaning mode. There may be a third cleaning mode in which the cleaning time is longer and the temperature of the cleaning liquid is higher.

The total discharge flow rate may be adjusted by increasing or decreasing the discharge flow rate from each discharge port 46a, or may be adjusted by increasing or decreasing the number of discharge ports 46a.

A plurality of cleaning modes may be used properly by, for example, any of the following or a combination thereof.
・Predetermined schedule ・Number of uses of the toilet device 10 after the previous toilet seat back washing ・Whether the user urinated or defecated ・Operation on the remote control device 8

For example, the operation control unit 74 executes the toilet seat back cleaning in the first cleaning mode each time the toilet device 10 is used, and once a day, at a predetermined time, the toilet seat back cleaning is performed in the second cleaning mode. and wash the back of the toilet seat in the third washing mode at a predetermined time once a week.

Further, for example, when the number of uses of the toilet device 10 after the previous toilet seat back cleaning reaches 10 times, the operation control unit 74 executes the toilet seat back cleaning in the first cleaning mode, and when the number of uses reaches 30 times. , a second cleaning mode may be performed.

Further, for example, the operation control unit 74 may perform toilet seat back cleaning in the first cleaning mode after urination, and may perform the second cleaning mode after urination. Note that the operation control unit 74 may determine whether the user has urinated or defecated based on, for example, the time the user has been sitting on the toilet seat 22, that is, the time the contact detection sensor 54 has detected. .

In addition, the cleaning mode to be executed can be selected by the remote control device 8, and the operation control unit 74 executes the toilet seat back cleaning in the selected cleaning mode when the operation to start the toilet seat back cleaning is performed by the remote control device. good.

(Modification 8)
In the embodiment, the case where the toilet seat back cleaning is not executed when the toilet seat 22 is in the non-closed state under the control (that is, electrical control) of the control unit 70 has been described, but this may be mechanically realized. Specifically, for example, the on-off valve 50 may be a mechanical valve, and may be configured such that the on-off valve 50 is mechanically closed in conjunction with the non-closed state of the toilet seat 22 .

(Modification 9)
In the embodiment, the case where the contact detection sensor 54 realizes the function of the seating detection sensor has been described, but the present invention is not limited to this. , may be provided with a seating detection sensor. This seating detection sensor may detect seating based on the distance to the user, and includes a switch installed on the back surface of the toilet seat 22. When the user is seated on the toilet seat 22, the switch is pressed. It is also possible to detect the seating.

(Modification 10)
In the embodiment and the modified example described above, the case where the toilet seat 22 is pressed against the toilet bowl 12 to increase the degree of close contact between the seal member 60 and the toilet seat 22 and the toilet bowl 12 during washing of the back of the toilet seat has been described. For example, the toilet seat 22 may be pressed against the toilet bowl 12 during flushing. Specifically, for example, when the user operates the remote control device 8 to start toilet flushing, the operation control unit 74 causes the toilet seat opening/closing motor 40 to move in the direction of closing the toilet seat 22 for a predetermined time (toilet flushing is reliably completed). time until it is completed) You may continue to rotate. As a result, the toilet seat 22 is pressed against the toilet bowl 12 .

(Modification 11)
Although not specifically mentioned in the embodiment and the above-described modified example, the back of the toilet seat is dried in a state where the toilet seat 22 is pressed against the toilet bowl 12 to increase the degree of adhesion between the seal member 60 and the toilet seat 22 and the toilet bowl 12. may be executed. Specifically, for example, when the toilet seat back cleaning by the toilet seat back cleaning mechanism 42 stops, the operation control unit 74 continues to rotate the toilet seat opening/closing motor 40 in the direction to close the toilet seat 22 for a predetermined time. As a result, the toilet seat 22 is pressed against the toilet bowl 12 . The state in which the toilet seat 22 is pressed against the toilet bowl 12 may be maintained from the start of the toilet seat back washing to the end of the toilet seat back drying. The operation control unit 74 causes the drying device 28 to dry the back of the toilet seat while the toilet seat 22 is pressed against the toilet bowl 12 . According to this modification, the cleaning liquid blown away by the dry air from the drying device 28 is prevented from leaking out from between the toilet seat and the toilet body.

(Modification 12)
In the embodiment, the case where the toilet seat back is washed and then the toilet seat back is dried has been described, but the present invention is not limited to this. For example, toilet seat back drying may be performed after toilet flushing. For example, the operation control unit 74 may start drying the back of the toilet seat after a predetermined period of time (a period of time during which the toilet bowl washing has been reliably completed) has elapsed since toilet washing was started.

(Modification 13)
As a further modification, the toilet seat unit 16 may include the toilet seat back cleaning unit 42 and the function of controlling the toilet seat back cleaning unit 42 of the control section 70 . In other words, the toilet seat unit 16 may be configured to be able to wash the back of the toilet seat.

Generalizing the inventions embodied by the embodiments and modifications leads to the following technical ideas.
A toilet device according to one aspect of the present invention is a toilet device configured to be able to perform toilet seat back cleaning by supplying a cleaning liquid to the back surface of the toilet seat to clean the back surface of the toilet seat, and when the toilet seat is in the non-closed state. , Do not wash the back of the toilet seat.

A control unit for controlling toilet seat back washing may be provided. When the toilet seat is in the non-closed state, the control unit does not cause the back of the toilet seat to be washed.

A human body detection sensor for detecting a user may be provided. The control unit may stop the toilet seat back washing when the user is detected by the human body detection sensor during the toilet seat back washing.

A seating detection sensor may be provided to detect that the user has sat on the toilet seat. The control unit may stop the toilet seat back washing when the seating detection sensor detects that the user is seated on the toilet seat during the toilet seat back washing.

An open/close detection sensor that detects the open/closed state of the toilet seat may be provided. The control unit may stop the toilet seat back washing when it is detected that the toilet seat is in the non-closed state during the toilet seat back washing.

According to these aspects, the cleaning liquid for cleaning the back of the toilet seat is prevented from splashing around the toilet device.

A biasing means may be provided for biasing the toilet seat in the closing direction during washing of the back of the toilet seat.

The urging means is a motor for opening and closing the toilet seat, and the control unit may rotate the rotating shaft of the motor in the direction of rotation when the toilet seat is closed during washing of the back of the toilet seat.

A locking mechanism may be provided for locking the toilet seat in the closed position during toilet seat back washing.

According to these aspects, it is possible to prevent the toilet seat from being lifted during washing of the back of the toilet seat.

Another aspect of the invention is a toilet seat unit. This toilet seat unit is configured to be able to wash the back surface of the toilet seat by supplying cleaning liquid to the back surface, and does not clean the back surface of the toilet seat when it is in the non-closed state.

According to this aspect, the cleaning liquid for cleaning the back of the toilet seat is prevented from splashing around the toilet seat unit.

10 toilet device 12 toilet bowl 14 toilet body 16 toilet seat unit 22 toilet seat 42 toilet seat back cleaning mechanism 70 control unit 74 operation control unit.

Claims (7)

A toilet device configured to be able to wash the back of a toilet seat by supplying a cleaning liquid to the back of the toilet seat to clean the back of the toilet seat,
a control unit for controlling toilet seat back washing;
a human body detection sensor for detecting a user in the toilet room ;
with
The control unit
when the toilet seat is in the non-closed state, the back of the toilet seat is not washed;
When a user is detected by the human body detection sensor during toilet seat back washing, the toilet seat back washing is stopped,
For a predetermined period of time after the toilet seat back cleaning is started by operating a remote control device in the toilet room, even if the human body detection sensor detects that the user is in the toilet room, the toilet seat back cleaning is not stopped, A toilet device, wherein washing of the back of the toilet seat is stopped when the presence of a user in the toilet room is detected by the human body detection sensor after the predetermined time has elapsed . A seating detection sensor that detects that the user is seated on the toilet seat,
2. The toilet apparatus according to claim 1, wherein said control unit stops washing the back of the toilet seat when the seating detection sensor detects that the user is seated on the toilet seat during washing of the back of the toilet seat. An open/close detection sensor that detects the open/closed state of the toilet seat,
3. The toilet device according to claim 1, wherein the control unit stops washing the back of the toilet seat when it is detected that the toilet seat is in a non-closed state during washing of the back of the toilet seat. 4. The toilet device according to any one of claims 1 to 3, further comprising biasing means for biasing the toilet seat in a closing direction during washing of the back of the toilet seat. the biasing means is a motor for opening and closing the toilet seat;
5. The toilet device according to claim 4, wherein the control unit rotates the rotation shaft of the motor in a rotation direction in which the rotation shaft rotates when the toilet seat is closed during the back washing of the toilet seat. 6. The toilet apparatus according to any one of claims 1 to 5, further comprising a locking mechanism for locking said toilet seat in a closed state during toilet seat back washing. A toilet seat unit configured to be able to wash the back surface of the toilet seat by supplying a cleaning liquid to the back surface,
When in the non-closed state, do not wash the back of the toilet seat,
When a user in the toilet room is detected by a predetermined human body detection sensor during toilet seat back washing, the toilet seat back washing is stopped,
For a predetermined period of time after the operation of the remote control device in the toilet room starts the back washing of the toilet seat, even if the human body detection sensor detects that the user is in the toilet room, the back washing of the toilet seat is not stopped, A toilet seat unit that stops washing the back of the toilet seat when the human body detection sensor detects that a user is present in the toilet room after the predetermined time has elapsed .

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