JP2017158904A - Toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve improvement in safety and reliability by suppressing generation of electric leakage in a toilet seat heater.SOLUTION: A toilet seat device includes a body 200, a toilet seat 400, and a toilet seat heater 450. The toilet seat heater 450 has a constitution in which a linear heater 453 is disposed in a meandering form between two soaking sheets 451, and waterproof insulation sheets 454 are laminated on the outside surface of the soaking sheets 451. Outer peripheral portions of the waterproof insulation sheets 454 are adhered to each other, and a waterproof insulation part 457 is formed across the whole circumference. In one part of the waterproof insulation part 457, a non-adhering part which is not adhered to the inside surface of an upper part toilet seat casing 410 is formed, and an outer peripheral edge of the non-adhering part does not come into close contact with the inside surface of the upper part toilet seat casing 410. With this constitution, an end part of the waterproof insulation part can be prevented from coming into close contact with the inside surface of the upper part toilet seat casing, water infiltration from the end part of the waterproof insulation part can be prevented, and safety and reliability can be improved.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a configuration of a toilet seat apparatus that improves the waterproof performance and insulation performance of a toilet seat heater.

  Conventionally, the toilet seat structure in this type of toilet seat apparatus is configured by sandwiching two metal foils sandwiching a heating wire with two laminate films having waterproof insulation performance larger than the outer shape of the two metal foils, Outside the outer periphery of the metal foil, two laminated films are directly joined to form a waterproof toilet seat heater in which the metal foil and the heating wire are sealed, and an adhesive layer is formed on the entire surface of one laminate film. The entire surface is attached to the back surface of the seating surface of the toilet seat (see, for example, Patent Document 1).

  FIG. 11 is a schematic diagram showing a cross section of a state in which a toilet seat heater is attached to the back surface of the seating surface of a conventional toilet seat described in Patent Document 1. The toilet seat heater 1 has two metal foils 3 and 4 attached so as to sandwich a heating wire 2 having an insulating layer on the outer periphery, and the metal foils 3 and 4 have upper and lower surfaces than the metal foils 3 and 4. Laminate films 5 and 6 having a large outer shape are laminated, and two laminate films 5 and 6 are directly bonded outside the outer periphery of the metal foils 3 and 4 of the laminate films 5 and 6. An adhesive layer 8 is formed on the entire surface of the upper laminate film 5 on the seating surface 7 side, and the toilet seat heater 1 is attached to the back surface of the seating surface 7 via the adhesive layer 8.

Japanese Patent No. 5136206

  However, in the conventional toilet seat device, the outer peripheral end of the toilet seat heater is in a state in which the laminate film is directly joined over the entire circumference, and when the laminate films are insufficiently joined, The possibility of leakage due to corrosion of the heating wire and the metal foil due to the ingress of moisture from the outer peripheral edge cannot be denied. In particular, the toilet seat has a configuration in which an inverted position and an upright position can be rotated, and an upper toilet seat casing and a lower toilet seat casing each having a seating surface are vertically joined. If water such as urine enters the toilet seat from the joint between the upper toilet seat casing and the lower toilet seat casing, etc., when the toilet seat is raised, the infiltrated water will accumulate inside the rear of the toilet seat, and the back of the seating surface There is a possibility of reaching the rear end of the toilet seat heater, and it is conceived that the toilet seat heater enters the inside of the toilet seat heater, and there is still room for improvement from the viewpoint of the safety of the toilet seat.

  The present invention solves the above-described conventional problems, and prevents the occurrence of water leakage from the outer peripheral end of the toilet seat heater, thereby suppressing the occurrence of insulation leakage breakdown and leakage and improving safety and reliability. With the goal.

In order to solve the above-described conventional problems, a toilet seat device of the present invention has a main body installed on a toilet bowl, is pivotally supported by the main body, has a seating surface on an upper surface, and is formed of a metal material. An annular upper toilet seat casing and an annular lower toilet seat casing formed of a resin material are joined at the inner and outer peripheral edges of each other, and an annular cavity is formed therein, and the inner surface of the upper toilet seat casing The toilet seat heater has a linear heater disposed between two soaking sheets containing metal in a serpentine shape, and waterproof insulation is provided on each outer surface of the soaking sheet. The sheet is laminated, and the two waterproof insulation sheets are formed in a larger outer shape than the soaking sheet, and the outer parts of the soaking sheet are adhered to each other so that they are waterproof over the entire circumference of the soaking sheet. Insulation part is formed and The heater has a structure in which one waterproof insulating sheet is attached to the inner surface of the upper toilet seat casing via an adhesive, and a part of the waterproof insulating portion is not attached to the inner surface of the upper toilet seat casing. It is formed and the outer peripheral edge of the non-sticking part is not in intimate contact with the inner surface of the upper toilet seat casing.

  As a result, it becomes possible to prevent the end of the waterproof insulation part from coming into close contact with the inner surface of the upper toilet seat casing and to prevent water from entering from the end of the waterproof insulation part. In addition, the occurrence of electric leakage can be suppressed, and safety and reliability can be improved.

  The toilet seat device of the present invention can improve safety and reliability by improving the waterproof insulation performance of the toilet seat heater.

The perspective view which shows the external appearance of the state which installed the toilet seat apparatus in Embodiment 1 of this invention on the toilet bowl. The perspective view which shows the external appearance of the toilet seat in Embodiment 1 of this invention 1 is an exploded perspective view of a toilet seat according to Embodiment 1 of the present invention. The bottom view which shows the state by which the toilet seat heater and the related member were attached to the upper toilet seat casing of the toilet seat in Embodiment 1 of this invention The perspective view of the heat insulating material in Embodiment 1 of this invention Plan view of toilet seat heater according to Embodiment 1 of the present invention Schematic diagram showing the BB cross section shown in FIG. Schematic diagram showing the AA cross section shown in FIG. Schematic showing the cross section of the rear of the toilet seat heater of another configuration Schematic showing the cross section of the rear of the toilet seat heater of another configuration Schematic diagram showing a cross-section in a state in which a toilet seat heater is pasted on the back surface of the seating surface of a conventional toilet seat

  According to a first aspect of the present invention, there is provided a main body installed on a toilet bowl, a pivotal pivotally supported by the main body, a seating surface on an upper surface, an annular upper toilet seat casing formed of a metal material, and a resin material. The formed annular lower toilet seat casing is joined at the inner and outer peripheral edges of each other, and a toilet seat in which an annular cavity is formed inside, and a toilet seat heater attached to the inner surface of the upper toilet seat casing, The toilet seat heater has a structure in which a linear heater is disposed in a meandering shape between two soaking sheets containing metal, and a waterproof insulating sheet is laminated on each outer surface of the soaking sheet. The two waterproof insulating sheets are formed in an outer shape larger than the soaking sheet, the outer portions of the soaking sheet are adhered to each other, and the waterproof insulating portion is provided over the entire circumference of the soaking sheet. The toilet seat has a formed configuration The one of the waterproof insulating sheets is configured to be adhered to the inner surface of the upper toilet seat casing via an adhesive, and a part of the waterproof insulating portion is not adhered to the inner surface of the upper toilet seat casing. A non-sticking portion is formed, and the outer peripheral edge of the non-sticking portion is not in close contact with the inner surface of the upper toilet seat casing.

  As a result, it is possible to prevent the end of the waterproof insulating portion from coming into close contact with the inner surface of the upper toilet seat casing 410, and to prevent water from entering from the end of the waterproof insulating portion. The occurrence of breakdown and electric leakage can be suppressed, and safety and reliability can be improved.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the non-sticking part is formed at a rear end part of the toilet seat heater.

  As a result, it is possible to reliably ensure the waterproof insulation performance at the rear portion of the toilet seat, where water tends to accumulate when the toilet seat is upright, and the safety and reliability can be further improved.

  According to a third invention, in particular, in the first or second invention, the non-sticking portion is bent to the other waterproof insulating sheet side and fixed to the surface of the other waterproof insulating sheet.

  Thereby, while being able to raise the sealing degree of a waterproof insulation part more, the rear-end part of a waterproof insulation part can be isolated more reliably from the inner surface of an upper toilet seat casing, and it can isolate from a rear-end part of a waterproof insulation part. Inundation can be prevented more reliably, and safety and reliability can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
<1> Configuration of Toilet Seat Device FIG. 1 is a perspective view showing an appearance of the toilet seat device according to the present embodiment installed on a toilet.

  As shown in FIG. 1, the toilet seat device 100 includes a main body 200, a toilet lid 300, a toilet seat 400, and a remote controller 500, and the main body 200, the toilet lid 300, and the toilet seat 400 are integrally formed and installed on the upper surface of the toilet 110. Is done.

  A toilet lid 300 and a toilet seat 400 are attached to the main body 200 through an electric toilet seat toilet lid rotation mechanism so as to be opened and closed. In the state where the toilet lid 300 is opened as shown in FIG. 1, the toilet lid 300 stands so as to be positioned at the rearmost part of the toilet seat device 100. When the toilet lid 300 is closed, the upper surface of the toilet seat 400 is concealed. The toilet seat 400 has a built-in toilet seat heater 450 and heats the seating surface of the toilet seat 400 to a comfortable temperature.

  In addition, a seating detection switch (not shown) for detecting a human body seated on the toilet seat 400 is installed on a bearing portion that supports the rotation shaft of the toilet seat 400. This seating detection switch detects that the user is seated on the toilet seat 400 by opening and closing the switch by a weight change caused by the seating of the user on the toilet seat 400.

  As shown in FIG. 1, a protrusion 210 is provided on the side of the main body 200, and an operation unit 211 including a plurality of operation switches 212 is provided on the upper surface of the protrusion 210.

  The remote controller 500 is provided with a plurality of operation switches 501 for operating and setting each function of the toilet seat device, and a human body detection sensor 502 for detecting a user who has entered the toilet room. The remote controller 500 is attached to a place such as a wall surface of a toilet room that can be operated by a user seated on the toilet seat 400, and an operation signal is transmitted to the main body 200 via radio.

In this embodiment, the installation side of the toilet seat main body 200 is the rear side, the installation side of the toilet seat 400 is the front side, the right side is the right side and the left side is the left side. explain.

  Inside the main body 200, there are a cleaning means (not shown) for cleaning the user's local part, a drying device (not shown) for drying the local part after cleaning, and a deodorizing apparatus ( A toilet seat toilet lid rotating mechanism (not shown) for electrically rotating the toilet lid 300 and the toilet seat 400, a control unit (not shown) for controlling the toilet seat device 100, and the like are installed.

  The cleaning means is composed of a cleaning water supply mechanism and a nozzle device. The cleaning water supplied from the water pipe is supplied to the nozzle device with hot water heated by the heat exchanger of the cleaning water supply mechanism. Hot water is sprayed toward the local area to clean the local area of the user.

  The nozzle device includes a cleaning nozzle having a buttocks cleaning nozzle section for cleaning the buttocks and a bidet nozzle section for cleaning a local area of the woman, a cleaning position in which the cleaning nozzle is housed in the main body 200, and a cleaning operation that protrudes from the main body A driving means (not shown) that moves back and forth between the positions, a flow control valve (not shown) that supplies cleaning water from the heat exchanger to the cleaning nozzle, and the like are integrated.

  The spraying outlet of the drying device is disposed at the lower part of the front surface of the main body 200. A drying shutter that can be freely opened and closed is installed in front of the spraying outlet. The structure prevents the intrusion of cleaning water or the like, and is opened by the wind pressure ejected from the drying device when the drying device is driven. The detailed configuration of the drying device will be described later.

  Based on signals transmitted from the operation switch 501 of the remote controller 500 that operates each function of the toilet seat device 100, the operation switch 212 of the main body 200, and the seating detection switch (not shown), the control unit Control the operation of each part.

  When there is no user in the toilet room, the toilet seat device 100 of the present invention stops energizing the toilet seat heater or keeps the temperature low at about 20 ° C. When the user enters the toilet room, a signal from the human body detection sensor 502 is received, and the toilet seat heater is energized. The toilet seat heater is a very high output heater of about 800W, and the seating surface of the toilet seat 400 is placed at about 40 ° C. for about 6 to 10 seconds after the user enters the toilet room and sits on the toilet seat. Warm to the proper temperature. After the toilet seat 400 reaches an appropriate temperature, the energization of the toilet seat heater is lowered to a low wattage of about 50 W to maintain the appropriate temperature. When the user gets out of the toilet room, the energization to the toilet seat heater is stopped or the temperature is kept at a low temperature of about 20 ° C. That is, the toilet seat device greatly reduces the power when there is no user in the toilet room.

  The cleaning mechanism, the drying device, the deodorizing device, and the toilet seat toilet lid rotation mechanism are not essential components of the toilet seat device, and may be a toilet seat device that does not include these components.

<2> Configuration of Toilet Seat FIG. 2 is a perspective view showing the assembled state of the toilet seat, FIG. 3 is a perspective view showing the disassembled state of the toilet seat, and FIG. 4 is a diagram showing that a member such as a toilet seat heater is attached to the upper toilet seat casing of the toilet seat FIG. 6 is a perspective view showing the appearance of the heat insulating material.

  As shown in FIGS. 2 and 3, the toilet seat 400 includes a substantially elliptical annular upper toilet seat casing 410 formed mainly of aluminum, a substantially elliptical annular lower toilet seat casing 420 formed of synthetic resin, A substantially horseshoe-shaped toilet seat heater 450 adhered to the back surface of the upper toilet seat casing 410 and a heat insulating material 480 integrally molded with foamed resin are configured as main components.

  Hereinafter, the front side viewed from the seated user is defined as the front portion of the toilet seat 400, and the rear side viewed from the seated user is defined as the rear portion of the toilet seat 400.

  The upper toilet seat casing 410 is formed by pressing an aluminum plate having a thickness of about 0.8 mm by pressing or the like, and a polyester powder coating film having insulating properties and heat resistance is formed on the front surface and the back surface.

  The upper toilet seat casing 410 is formed with a substantially elliptical annular seating surface 411 and a back guard portion 412 rising upward from the seating surface 411 at the rear of the seating surface 411.

  The upper surface of the side portion of the upper toilet seat casing 410 that forms the seating surface 411 is inclined so as to be lower from the outer periphery toward the inner periphery, and is formed by a loose curved surface that protrudes upward. It is getting smaller. The width of the side portion of the seating surface 411 is wide at the rear and narrow at the front.

  The back guard part 412 and the seating surface 411 are connected by a continuous concave curved surface, and the upper part is an inclined surface. The upper edge 412a of the back guard part 412 is a large curve close to a horizontal line, and the width of the back guard part 412 is substantially the same as the lateral width of the seating surface 411. Back guard part 412 can control that a user who seated on seating surface 411 moves backward, and it can control that a user's body touches a main part and feels unpleasant.

  The upper toilet seat casing 410 is made of an aluminum plate having a thickness of about 0.8 mm, so that it can be appropriately elastically deformed. When the user is seated on the seating surface 411, the upper toilet seat casing 410 is deformed by the weight of the user. In particular, a moderate cushioning property is exhibited by the deformation that bends downward with the inclined surface of the side portion of the seating surface 411 centered around a horizontal portion. Thereby, the impact at the time of seating is absorbed and comfortable seating can be obtained.

  The inner peripheral edge 415 and the outer peripheral edge 416 of the upper toilet seat casing 410 are bent inward, and the upper toilet seat casing 410 and the lower toilet seat casing 420 are engaged at a plurality of locations of the inner peripheral edge 415 and the outer peripheral edge 416. A plurality of engaging holes 418 are formed.

  As described above, the upper toilet seat casing 410 is formed using an aluminum plate. However, the upper toilet seat casing 410 is not limited to this, and is not limited to this, but other metal having good heat conduction such as a plate material such as copper or stainless steel or a molded product of magnesium alloy. May be used. Further, the surface treatment applied to the aluminum plate is not limited to the above specifications, and other chemical treatments or other coatings using acrylic or urethane paints can be selected.

  The lower toilet seat casing 420 is a molded product using a resin material such as ABS, and a main body portion 421 whose planar shape is substantially the same as that of the upper toilet seat casing 410, and an arm portion 422 that protrudes obliquely upward to the rear of both sides of the main body portion 421. It consists of

  A plurality of engaging claws 428 for engaging the upper toilet seat casing 410 and the lower toilet seat casing 420 are integrally formed on the inner peripheral edge 425 and the outer peripheral edge 426 of the lower toilet seat casing 420.

  The upper toilet seat casing 410 and the lower toilet seat casing 420 are coupled to each other by engaging an engaging claw 428 formed in the lower toilet seat casing 420 with an engaging hole 418 formed in the upper toilet seat casing 410, and a hollow portion is formed therein. 401 is formed.

  On the lower surface of the lower toilet seat casing 420, four legs 430 are installed at symmetrical positions in order to support the toilet seat 400 on the upper surface of the toilet 110. The two front legs 431 provided at the front bear a central function as a support that supports much of the weight of the seated user, and the two rear legs 432 at the rear serve as the upper surface of the toilet 110. The purpose of this is to support the function of maintaining the horizontal position.

  As shown in FIG. 4, a toilet seat heater 450 formed in a substantially horseshoe shape with a part of the front portion cut off is attached to substantially the entire inner surface of the upper toilet seat casing 410.

  In the terminal portion 460 provided at the rear portion of the toilet seat heater, electric leakage between the two power lead wires 470 and 471 for supplying electric power to the toilet seat heater 450 and the linear heater 453 and the two soaking sheets 451 and 453 is detected. A detection lead wire 472 for detection is connected. The power lead 470 is connected to the starting end of the terminal portion 460, and the power lead 471 is connected to the terminal end of the terminal portion 460. Further, the detection lead wire 472 is connected to the first soaking sheet 451 and the second soaking sheet 452.

  Further, a thermal fuse 474 is connected in the middle of the power lead wire 471, and the thermal fuse 474 is installed at substantially the center of the rear region 451 c of the toilet seat heater 450.

  A first thermistor 475 and a second thermistor 476 for detecting the temperature of the seating surface 411 of the toilet seat 400 are installed on both side surfaces of the toilet seat heater 450. The temperature detection information of the first thermistor 475 and the second thermistor 476 is used for energization control of the toilet seat 400 and overheating prevention. In addition, a ground wire 473 that ensures safety is connected to the outer peripheral portion of the upper toilet seat casing 410 (detailed configuration of the toilet seat heater will be described later).

  The heat insulating material 480 is integrally formed with foamed polystyrene which is an independent foam, and as shown in FIG. 5, the heat insulating material 480 has a substantially horseshoe shape with the rear portion opened, and the inner and outer peripheral shapes thereof are The upper toilet seat casing 410 is formed in a shape that is substantially similar to the inner and outer peripheries of the upper toilet seat casing 410 and can cover the upper and lower seats of the upper toilet seat casing 410 and the toilet seat heater 450. The cross-sectional shape of the heat insulating material 480 is a substantially mountain shape with the upper surface 481 protruding upward, and the shape of the upper surface 481 is substantially similar to the inner surface shape of the upper toilet seat casing 410.

  A plurality of substantially cylindrical projections 482 projecting upward are integrally formed at a plurality of locations on the upper surface 481 of the heat insulating material 480. A small-diameter tip protrusion 482a is molded at the center near the tip of the heat insulating material 480. On the rear side of the tip protrusion 482a, an intermediate-diameter leg-corresponding protrusion 482b is molded at a symmetrical position. A large-diameter planar corresponding protrusion 482c is molded at a symmetrical position behind the leg corresponding protrusion 482b. In addition, a small-diameter rear end protrusion 482d is formed at a symmetrical position near the rear end of the heat insulating material 480. Each of these protrusions 482 is molded so as to protrude about 1 mm from the upper surface 481 of the heat insulating material.

  The front end protrusion 482a and the rear end protrusion 482d prevent the upper surface 481 in the vicinity of the front end portion and the rear end portion of the heat insulating material 480 from directly contacting the toilet seat heater 450.

  The leg-corresponding protrusion 482b prevents peeling when the user is seated and the seating surface 411 is deformed, so that the leg-corresponding protrusion 482b presses the toilet seat heater 450, and the seating surface 411 is extremely deformed. By suppressing it, the occurrence of a sense of incongruity is suppressed.

<3> Configuration of Toilet Seat Heater FIG. 4 is a bottom view showing a state in which a member such as a toilet seat heater is attached to the upper toilet seat casing of the toilet seat, FIG. 6 is a plan view of the toilet seat heater, and FIG. FIG. 8 is a schematic diagram of the rear part of the toilet seat heater showing the BB cross section, FIG. 8 is a schematic diagram of the rear section of the toilet seat heater attached to the upper toilet seat casing showing the AA cross section shown in FIG. 4, and FIG. FIG. 10 is a schematic diagram showing a cross section of the rear part of the toilet seat heater, and FIG. 10 is a schematic diagram showing a cross section of the rear part of the toilet seat heater of another configuration.

  As shown in FIG. 6, the outer shape of the toilet seat heater 450 is formed in a substantially horseshoe shape in which a part of the front portion is cut off. The basic structure of the toilet seat heater 450 is that a linear heater 453 is arranged in a meandering shape between two soaking sheets, and a waterproof insulating sheet is bonded to both outer surfaces of the soaking sheets. It is a thing.

  The first soaking sheet 451 and the second soaking sheet 452 that are two soaking sheets are sheet-like members having a three-layer structure having the same configuration. An insulating sheet made of polyethylene terephthalate film (hereinafter referred to as PET film) having a thickness of about 12 μm is laminated on one surface of an aluminum foil having a thickness of about 50 μm, and an acrylic adhesive layer on the other surface. Is formed.

  The first waterproof insulating sheet 454 has an acrylic adhesive layer having a thickness of about 50 μm formed on the surface of a PET film having a thickness of about 12 μm. On the other hand, the second waterproof insulating sheet 455 has an acrylic adhesive layer having a thickness of about 70 μm formed on the surface of a PET film having a thickness of about 12 μm.

  The linear heater 453 has an insulating coating layer formed on the surface of a heating wire made of a copper alloy.

  The outer shapes of the first waterproof insulating sheet 454 and the second waterproof insulating sheet 455 are larger than the outer shapes of the first soaking sheet 451 and the second soaking sheet 452, and the outer periphery of the first soaking sheet 451 and the second soaking sheet 452. It is formed in a shape that can sufficiently cover the end.

  As shown in FIG. 4, in a state of being attached to the inner surface of the upper toilet seat casing 410, the first waterproof insulating sheet 454 of the toilet seat heater 450 is attached to the inner surface of the upper toilet seat casing 410 via an adhesive layer. .

  As shown in FIG. 7, the first soaking sheet 451 is attached to the first waterproof insulating sheet 454 on the PET film side through the adhesive layer of the first soaking sheet 451.

  Further, a linear heater 453 is disposed on the PET film side of the first soaking sheet 451, and the second soaking sheet 452 is interposed via the adhesive layer of the second soaking sheet 452 so as to sandwich the linear heater 453. A heat sheet 452 is attached.

  The second waterproof insulating sheet 455 is attached to the PET film side of the second soaking sheet 452 via the adhesive layer of the second waterproof insulating sheet 455.

  Further, outside the outer peripheral end portions of the first soaking sheet 451 and the second soaking sheet 452, the second waterproof insulating sheet 454 is covered with the second waterproof insulating sheet 455 through the adhesive layer of the second waterproof insulating sheet 454. A waterproof insulating sheet is directly attached, and a waterproof insulating part 457 that covers the outer peripheral ends of the first and second soaking sheets 451 and 452 and has both a waterproof function and an insulating function is formed over the entire circumference. .

  The waterproof insulating portion 457 is formed with a width of about 5 mm on the entire inner periphery of the toilet seat heater 450 and the front and sides of the outer periphery, and the rear of the outer periphery is formed with a width of about 28 mm.

  As shown in FIG. 6, a terminal portion 460 is installed on the right side of the rear portion of the toilet seat heater 450, and the starting end of the linear heater 453 is connected to the starting end portion (not shown) of the terminal portion 460. The linear heater 453 extended from the start end is disposed to the right front end while meandering the right region 451a of the first heat equalizing sheet 451 mainly to the left and right, and mainly the first heat equalizing sheet 451 from the front end. It reaches the left front end portion of the left region 451b of the first heat equalization sheet via the rear portion of the first heat equalization sheet 451 along the circumference, and the left region 451b is mainly formed on the first heat equalization sheet 451 from the left front end portion. It is arranged to the rear left side while meandering left and right.

  From the rear left side, the rear region 451c of the first soaking sheet 451 is meandered to the left and right while being meandered to the rear right side, and the end of the linear heater 453 is connected to the end of the terminal portion 460, thereby the linear heater 453. Are continuously arranged from the start to the end.

  The right region 451a, the left region 451b, and the rear region 451c in which the linear heaters 453 are arranged meandering form a seating heating range 456 in which a comfortable heating effect can be obtained when the user is seated on the toilet seat 400. . The seating heating range 456 is configured such that the linear heaters 453 are arranged at an approximate pitch, so that almost the same warm feeling can be obtained when the user is seated.

  The terminal portion 460 includes two power lead wires 470 and 471 that supply power to the toilet seat heater 450, and a detection lead that detects a leakage between the linear heater 453, the first heat equalizing sheet 451, and the second heat equalizing sheet 452. Line 472 is connected. The power lead 470 is connected to the starting end of the terminal portion 460, and the power lead 471 is connected to the terminal end of the terminal portion 460. Further, the detection lead wire 472 is connected to the first soaking sheet 451 and the second soaking sheet 452.

  Further, a thermal fuse 474 is connected in the middle of the power lead wire 471, and the thermal fuse 474 is installed at substantially the center of the rear region 451 c of the toilet seat heater 450.

  As shown in FIG. 4, the toilet seat heater 450 is attached to almost the entire inner surface of the upper toilet seat casing 410. A first thermistor 475 and a second thermistor 476 for detecting the temperature of the seating surface 411 of the toilet seat 400 are installed on both side surfaces of the toilet seat heater 450. The temperature detection information of the first thermistor 475 and the second thermistor 476 is used for energization control of the toilet seat 400 and overheating prevention. In addition, a ground wire 473 that ensures safety is connected to the outer peripheral portion of the upper toilet seat casing 410.

  The first soaking sheet 451 and the second soaking sheet 452 are provided with detection lines for detecting dielectric breakdown of the linear heater 453. When the linear heater 453 generates heat by energization, the heat is conducted to the first soaking sheet 451 and the second soaking sheet 452, and the sheet-like toilet seat heater 450 has the effect of increasing the temperature in a uniform state, The first soaking sheet 451 and the second soaking sheet 452 function as a soaking part. The first soaking sheet 451 and the second soaking sheet 452 are configured to transmit heat most efficiently by sealing and covering substantially the entire outer periphery of the linear heater 453.

  If an air layer exists around the linear heater 453 (between the first soaking sheet 451 and the second soaking sheet 452), heat radiation from the linear heater 453 is inhibited and heat is generated. The temperature of the wire will rise. At this time, when the heat resistance temperature of the insulating coating layer is exceeded, the coating material is deteriorated, the insulating property is destroyed, and eventually the heating wire is disconnected.

Therefore, if the insulation of the linear heater 453 is impaired for some reason by providing detection lines on the first soaking sheet 451 and the second soaking sheet 452 and monitoring the current flowing therethrough, the wires are energized by energization. It is an object of the present invention to ensure safety by detecting the current leaked from the heater 453 by means of a dielectric breakdown detection circuit and stopping energization. That is, the first soaking sheet 451 and the second soaking sheet 452 that function as a soaking part are also used as dielectric breakdown detection electrodes.

  When adopting such a configuration that detects the breakdown and stops the heater energization, even if water enters the toilet seat and the toilet seat surface is wet, the dielectric breakdown detection circuit is connected and charged. As a measure for preventing conduction between the first and second soaking sheets 451 and 452 and the human body, the insulation of the first and second soaking sheets 451 and 452 is ensured. It will be necessary.

  The toilet seat heater 450 according to the present embodiment directly sticks the first waterproof insulating sheet 454 and the second waterproof insulating sheet 455 over the entire outer periphery of the first soaking sheet 451 and the second soaking sheet 452. By forming a waterproof insulating portion 457 having both a waterproof function and an insulating function, the first heat equalizing sheet 451, the second heat equalizing sheet 452, and the linear heater 453 are sealed to ensure waterproofness and insulation. ing.

  In particular, the toilet seat device 100 of the present embodiment has a configuration in which the toilet seat 400 is pivotally supported between an inverted position where the toilet seat 400 is inverted on the upper surface of the toilet 110 and an upright position where the toilet seat 400 is substantially vertical. is there.

  Therefore, when the toilet seat 400 is submerged, in the inverted position, the water that has entered the toilet seat 400 is accumulated in the lower toilet seat casing 420 and the toilet seat heater 450 attached to the upper toilet seat casing 410 is not submerged. . However, when the toilet seat 400 is in the standing position, the water soaked is collected at the rear end portion inside the toilet seat 400, and the rear seat portion of the toilet seat heater 450 is directly submerged or even if the toilet seat 400 is not directly submerged, There is a possibility that the inner surface is transferred to the rear end of the toilet seat heater 450 due to surface tension and is submerged.

  In order to ensure waterproofness and insulation of the toilet seat heater 450 even in the above state, the toilet seat heater 450 in the present embodiment is configured to enhance the waterproofness and insulation of the rear end portion of the toilet seat heater 450. Yes.

  As described above, the waterproof insulating portion 457 is formed with a width of about 5 mm about the entire inner periphery of the toilet seat heater 450 and the front and side of the outer periphery, whereas it is about 28 mm at the rear end of the outer periphery. It is formed with a width.

  The rear end portion of the outer periphery of the wide waterproof insulating portion 457 is provided to perform a non-sticking process that forms a non-sticking portion that does not directly adhere to the inner surface of the upper toilet seat casing 410.

  4 and 8 show a first non-sticking process which is a basic configuration in which a non-adhesive portion is formed.

  The waterproof insulating portion 457 at the outer peripheral rear end portion is folded forward at a position of about 8 mm from the outer peripheral rear ends of the first and second soaking sheets 451 and 452, and the folded waterproof insulating portion 457 is first bonded with an adhesive tape 458. The two waterproof insulation sheets 455 are fixed to the PET film surface.

The pressure-sensitive adhesive tape 458 used has a pressure-sensitive adhesive layer formed on the back surface of the PET film, and is waterproofed by sticking the pressure-sensitive adhesive tape 458 to the surface of the pressure-sensitive adhesive layer of the first waterproof insulating sheet 454 of the waterproof insulating portion 457. The non-sticking part which is not stuck to the inner surface of the upper toilet seat casing 410 is formed in the part 457. In addition, the formed non-adhesive portion is fixed to the PET film surface of the second waterproof insulating sheet 455 and is fixed and securely separated from the inner surface of the upper toilet seat casing 410.

  By adopting the above configuration, the sealing degree of the waterproof insulating portion 457 can be increased, and the rear end portion of the waterproof insulating portion 457 can be separated from the rear end portion of the upper toilet seat casing 410, and the upper toilet seat casing 410 It is possible to surely prevent water accumulated at the rear end portion from entering from the rear end portion of the waterproof insulating portion 457, and it is possible to prevent the breakdown of the toilet seat heater 450 and the occurrence of electric leakage. And can improve reliability.

  FIG. 9 shows a second non-sticking process which is another configuration of the waterproof insulating portion 457 of the toilet seat heater 450.

  In the first non-sticking process, the rear end part of the waterproof insulating part 457 is folded forward and fixed to the second waterproof insulating sheet 455 with the adhesive tape 458. In the configuration, as shown in FIG. 9, a PET tape 459 is attached to the surface of the adhesive layer of the first waterproof insulating sheet 454 of the folded waterproof insulating portion 457. Thereby, the non-sticking part which is not stuck on the inner surface of the upper toilet seat casing 410 can be formed at the rear end part of the waterproof insulating part 457.

  By adopting the above configuration, it becomes possible to prevent the rear end portion of the waterproof insulating portion 457 from coming into close contact with the inner surface of the upper toilet seat casing 410, and prevent water from entering from the rear end portion of the waterproof insulating portion 457. can do.

  FIG. 10 shows a third non-sticking process which is another configuration of the waterproof insulating portion 457 of the toilet seat heater 450.

  In the second non-sticking process, the PET tape 459 is only attached to the surface of the adhesive layer of the first waterproof insulating sheet 454 of the folded waterproof insulating part 457. The third non-sticking process In the configuration of FIG. 10, in addition to the application of the PET tape 459, the adhesive tape 458 is applied so as to straddle the surface of the PET tape 459 and the surface of the PET film of the second waterproof insulating sheet 455, as shown in FIG. The rear end portion of the waterproof insulating portion 457 is fixed to the PET film surface of the second waterproof insulating sheet 455.

  By adopting the above configuration, as in the first non-adhesive treatment, the sealing degree of the waterproof insulating portion 457 can be increased, and at the same time, it can be reliably isolated from the rear end portion of the upper toilet seat casing 410. In addition, by separating the adhesive layer of the first waterproof insulating sheet 454 and the adhesive layer of the adhesive tape 458 with the PET tape 459, it is possible to prevent the adhesive layer from becoming thicker than necessary. The effect of the non-adhesive part that prevents intrusion from the rear end part of the waterproof insulating part 457, which cannot suppress peeling, can be maintained for a long period of time.

  As described in the configuration of the three non-sticking processes, the rear end portion of the waterproof insulating portion 457 is not in close contact with the inner surface of the upper toilet seat casing 410 in any configuration, and such a configuration is adopted. By doing so, the high waterproofness and insulation of the toilet seat heater 450 can be ensured.

  In this embodiment, the non-sticking portion is formed only at the rear end portion of the waterproof insulating portion 457. However, the present invention is not limited to this, and in addition to the rear end portion, the side end portion of the waterproof insulating portion 457, etc. You may form in other places.

  Further, in this embodiment, the non-adhesive portion is formed by adhering the adhesive tape 458 and the PET tape 459 to the surface of the adhesive layer, but the present invention is not limited to this, and other non-adhesive materials are attached. A structure may be sufficient, and it is good also as a structure which deletes an adhesion layer and the rear-end part of the waterproof insulation part 457 does not stick to the upper toilet seat casing 410. FIG.

  As described above, since the toilet seat device according to the present invention can improve the waterproofness and insulation of the toilet seat heater, it can be applied to other uses such as heating equipment.

DESCRIPTION OF SYMBOLS 100 Toilet seat apparatus 110 Toilet bowl 200 Main body 400 Toilet seat 401 Cavity 410 Upper toilet seat casing 411 Seating surface 415 Inner edge 416 Outer edge 420 Lower toilet seat casing 425 Inner edge 426 Outer edge 450 Toilet seat heater 451 First soaking sheet
452 Second soaking sheet (soaking sheet)
453 Linear heater 454 First waterproof insulation sheet (waterproof insulation sheet)
455 Second waterproof insulation sheet (waterproof insulation sheet)
457 Waterproof insulation part 458 Adhesive tape (non-stick part)
459 PET tape (non-sticking part)

Claims (3)

A main body installed on the toilet,
An annular upper toilet seat casing that is pivotally supported by the main body, has a seating surface on the upper surface, is formed of a metal material, and an annular lower toilet seat casing that is formed of a resin material. And a toilet seat joined at the outer periphery, and an annular cavity is formed inside,
A toilet seat heater affixed to the inner surface of the upper toilet seat casing,
The toilet seat heater has a configuration in which a linear heater is arranged in a meandering shape between two soaking sheets containing metal, and a waterproof insulating sheet is laminated on each outer surface of the soaking sheet,
The two waterproof insulating sheets are formed in an outer shape larger than the soaking sheet, the outer portions of the soaking sheet are bonded to each other, and a waterproof insulating portion is formed over the entire circumference of the soaking sheet. And configured as
The toilet seat heater has a configuration in which one of the waterproof insulating sheets is attached to the inner surface of the upper toilet seat casing via an adhesive,
A part of the waterproof insulating part is formed with a non-sticking part that is not stuck to the inner surface of the upper toilet seat casing, and the outer peripheral edge of the non-sticking part is not in close contact with the inner surface of the upper toilet seat casing,
Toilet seat device. The non-sticking part is formed at the rear end of the toilet seat heater,
The toilet seat device according to claim 1. The non-sticking portion is bent to the other waterproof insulating sheet side and fixed to the surface of the other waterproof insulating sheet.
The toilet seat device according to claim 1 or 2.

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