JP2020054692A - toilet seat - Google Patents

Abstract

To provide a toilet seat which can suppress temperature unevenness generated in a central part and an inner peripheral part of a seating surface while obtaining high strength.SOLUTION: A toilet seat includes: a lower plate 100; an upper plate 200 which has an inner surface 220 and a seating surface 210 and forms an inner space SP between the lower plate and the upper plate; a bonding part for bonding the lower plate and the upper plate; and a heating part 400 provided on an inner surface in the inner space. The lower plate has an upper surface 130 facing upward and a side end surface 110 facing an inner peripheral side. The upper surface has a peripheral edge part 132 extending along the side end surface. An end part on the inner peripheral side of the inner surface of the upper plate is positioned on the inner peripheral side with respect to the side end surface of the lower plate and is positioned below at least a part of the side end surface of the lower plate. The inner surface of the upper plate has a first opposing part 224 which faces an outer peripheral side and opposes to the side end surface and a second opposing part 226 which faces downward and opposes to the peripheral edge part. The bonding part has a first part 301 provided between the side end surface and the first opposing part and a second part 302 provided between the peripheral edge part and the second opposing part.SELECTED DRAWING: Figure 4

Description

  Aspects of the present invention generally relate to toilet seats.

  2. Description of the Related Art A hollow toilet seat is formed by combining and bonding an upper plate and a lower plate (for example, Patent Document 1). Further, it is also practiced to provide a heating unit in the internal space of the hollow toilet seat so that the seating surface can be warmed.

  In order to obtain high strength in a configuration in which the upper plate and the lower plate are bonded, it is necessary to increase the bonding area as much as possible. On the other hand, if the bonding area is widened, it becomes difficult to heat the inner peripheral side of the toilet seat, and there is a possibility that the temperature may become uneven between the central portion and the inner peripheral portion of the seating surface.

  The heating unit is provided so as to be attached to the inner surface of the upper plate (the surface opposite to the seating surface). Therefore, for example, when the contact area is expanded in the vertical direction, it is difficult to bring the heating unit close to the lower end near the inner peripheral side on the inner surface of the upper plate, and it is difficult to warm the inner peripheral side. Nature occurs. Further, for example, when the contact area is expanded in the horizontal direction, the thickness of the inner peripheral portion of the upper plate becomes thicker, and it may be difficult to heat the inner peripheral side.

  The inner circumference side of the toilet seat may hit the buttocks and legs of the user. For this reason, the toilet seat in which the upper plate and the lower plate are bonded to each other to form a hollow shape and the heating section is provided inside, while obtaining high strength, it is possible that the temperature unevenness occurs in the central portion and the inner peripheral portion of the seating surface while obtaining high strength. It is desired to be able to control.

JP 2013-141562 A

  The present invention has been made based on the recognition of such problems, the upper plate and the lower plate are bonded to form a hollow shape, even when a heating portion is provided inside, while obtaining high strength, It is an object of the present invention to provide a toilet seat that can suppress the occurrence of temperature unevenness in a central portion and an inner peripheral portion of a seating surface.

  A first invention has a lower plate, an inner surface provided on the lower plate, facing the lower plate, and a seating surface opposite to the inner surface, between the lower plate. An upper plate that forms an internal space, an adhesive portion that bonds the lower plate and the upper plate, and a heating unit provided on the inner surface in the internal space, , And a side end surface facing the inner peripheral side, the upper surface has a peripheral portion extending along the side end surface, and an inner peripheral end of the inner surface of the upper plate is , While being located on the inner peripheral side than the side end surface of the lower plate, and located below at least a part of the side end surface of the lower plate, the inner surface of the upper plate faces the outer peripheral side, A first facing portion facing the side end surface, and a second facing portion facing downward and facing the peripheral edge portion, wherein the adhesive portion is provided in front of the side end surface. A first portion disposed between the first opposing portion, a toilet seat and having a second portion disposed between the peripheral portion and the second opposing portion.

  According to this toilet seat, the first portion of the bonding portion provided between the side end surface and the first facing portion can increase the bonding area in the up-down direction and between the peripheral portion and the second facing portion. The bonding area can be increased in the horizontal direction by the second portion of the provided bonding portion. Thus, high strength can be obtained even when the lower plate and the upper plate are bonded.

  Further, for example, as compared with the case where the contact area is widened only in the vertical direction, the heating unit can be more easily approached to the vicinity of the lower end on the inner peripheral side on the inner surface of the upper plate. Further, for example, as compared with the case where the contact area is expanded only in the horizontal direction, it is possible to suppress the inner peripheral portion of the upper plate from being excessively thick. Thereby, it is possible to suppress the occurrence of temperature unevenness in the central portion and the inner peripheral portion of the seating surface.

  Therefore, even when the upper plate and the lower plate are bonded to each other to form a hollow shape and a heating portion is provided inside, temperature unevenness occurs in the central portion and the inner peripheral portion of the seating surface while obtaining high strength. It is possible to provide a toilet seat capable of suppressing the above. Furthermore, it is possible to suppress the boundary between the upper plate and the lower plate from being exposed on the inner peripheral side, and to prevent the boundary between the upper plate and the lower plate from hitting the user and impair sitting comfort.

  A second invention is a toilet seat according to the first invention, wherein the heating unit is configured to make it easier to warm an inner peripheral portion of the seating surface than a central portion of the seating surface. .

  According to this toilet seat, even when it is difficult to approach the heating section to the vicinity of the lower end on the inner peripheral side of the inner surface of the upper plate, or when the inner peripheral portion of the upper plate is thick, the temperature at the center and inner peripheral portion of the seating surface is increased. The occurrence of unevenness can be more appropriately suppressed.

  In a third aspect based on the second aspect, the heating section has a cord-shaped heating element provided on the inner surface while being bent, and a density of the heating element provided on an inner peripheral portion of the inner surface is: A toilet seat having a density higher than a density of the heating element provided at a central portion of the inner surface.

  According to this toilet seat, the inner peripheral portion of the seating surface can be warmed more easily than the central portion of the seating surface with a relatively simple configuration.

  A fourth invention is the toilet seat according to any one of the first to third inventions, wherein a thickness of an inner peripheral portion of the upper plate is larger than a thickness of a central portion of the upper plate. .

  According to this toilet seat, higher strength can be obtained in the inner peripheral portion of the upper plate.

  According to the aspect of the present invention, the upper plate and the lower plate are bonded to each other to form a hollow shape, and even when a heating unit is provided inside, the central portion and the inner peripheral portion of the seating surface while obtaining high strength. A toilet seat that can suppress the occurrence of temperature unevenness in the toilet seat is provided.

It is a perspective view showing typically the toilet device provided with the toilet seat concerning embodiment. FIG. 3 is an exploded perspective view schematically illustrating the toilet seat according to the embodiment. It is a sectional view showing a part of toilet seat concerning an embodiment typically. It is an expanded sectional view showing typically a part of toilet seat concerning an embodiment. FIG. 3 is a plan view schematically illustrating a heating unit according to the embodiment. FIG. 3 is a partial cross-sectional view schematically illustrating a part of a heating unit according to the embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In each of the drawings, similar components are denoted by the same reference numerals, and detailed description will be omitted as appropriate.
FIG. 1 is a perspective view schematically illustrating a toilet apparatus provided with a toilet seat according to the embodiment.
As shown in FIG. 1, the toilet device 2 includes a toilet seat device 4 and a Western-style sitting toilet (hereinafter simply referred to as a “toilet”) 6.

  The toilet seat device 4 is mounted on the toilet 6. The toilet seat device 4 may be integrally attached to the toilet 6 or may be detachably attached to the toilet 6. The toilet seat device 4 includes a toilet seat 10, a toilet lid 12, and a main body 14.

  Here, in the specification of the present application, the upper side is defined as “upper” when viewed from the user sitting on the toilet seat 10, and the lower side is defined as “downward” when viewed from the user sitting on the toilet seat 10. Further, when viewed from the user sitting on the toilet seat 10 with the back facing the toilet lid 12 in the open state, the left-right direction is “left” and “right”, respectively, and the front-rear direction is “front” and “rear”, respectively. ". FIG. 1 illustrates an example of an upper UW, a lower DW, a left LW, a right RW, a front FW, and a rear BW.

  The toilet 6 has a bowl portion 6a that is recessed downward. The toilet bowl 6 receives user's excrement such as urine and stool in the bowl portion 6a. The main body 14 of the toilet seat device 4 is provided at an upper part of the toilet 6 behind the bowl 6 a. The main body 14 pivotally supports the toilet seat 10 and the toilet lid 12 so that they can be opened and closed.

  The toilet seat 10 has an opening 10a. The toilet seat 10 is provided on the toilet bowl 6 so as to surround the outer edge of the bowl portion 6a, and the bowl portion 6a is exposed through the opening 10a. Thus, the user can excrete the bowl portion 6a while sitting on the toilet seat 10. In this example, a so-called O-shaped toilet seat 10 in which a through-hole-shaped opening 10a is formed is shown. The toilet seat 10 is not limited to the O-shape, but may be a U-shape.

FIG. 2 is an exploded perspective view schematically illustrating the toilet seat according to the embodiment.
As shown in FIG. 2, the toilet seat 10 includes a lower plate 100 and an upper plate 200. The upper plate 200 is provided on the lower plate 100. The upper plate 200 has a seating surface 210 on which a user sits. The seating surface 210 is, in other words, the upper surface of the upper plate 200. Note that, here, the directions such as “up” and “down” correspond to a state in which the lower plate 100 of the toilet seat 10 is placed on a horizontal plane (a state in which the lower plate 100 is placed on the toilet bowl 6 and a user can sit down). Is based on

  As shown in FIG. 2, the lower plate 100 and the upper plate 200 have an opening 100a and an opening 200a, respectively. The shapes of the lower plate 100 and the upper plate 200 viewed from above are substantially the same as the shapes of the toilet seat 10 viewed from above. That is, the shape of the lower plate 100 and the upper plate 200 as viewed from above is annular or U-shaped. The opening 10a of the toilet seat 10 is formed by the opening 100a of the lower plate 100 and the opening 200a of the upper plate 200.

FIG. 3 is a cross-sectional view schematically illustrating a part of the toilet seat according to the embodiment.
FIG. 3 schematically illustrates a cross section taken along line A1-A2 of FIG.
As shown in FIG. 3, the toilet seat 10 further includes bonding units 300 and 320 and a heating unit 400. The bonding parts 300 and 320 bond the lower plate 100 and the upper plate 200. Heating section 400 warms seating surface 210 of upper plate 200.

  The bonding part 300 bonds the inner peripheral sides of the lower plate 100 and the upper plate 200. The bonding section 320 bonds the outer peripheral sides of the lower plate 100 and the upper plate 200. Here, the “inner peripheral side” is a side facing the openings 10a, 100a, 200a, and the “outer peripheral side” is a side opposite to the side facing the openings 10a, 100a, 200a.

  For example, the bonding portion 300 bonds the inner peripheral sides of the lower plate 100 and the upper plate 200 in a ring shape over substantially the entire circumference. The bonding section 320 bonds the outer peripheral sides of the lower plate 100 and the upper plate 200 in a ring shape over substantially the entire circumference, for example. Accordingly, it is possible to suppress the occurrence of a gap between the lower plate 100 and the upper plate 200, and to appropriately bond the lower plate 100 and the upper plate 200.

  Note that the structure of the hinge portion of the toilet seat 10 that is pivotally supported by the toilet seat device 4 may be different from the structure of the main body portion of the toilet seat 10 on which the user sits. For example, the adhesive part 320 on the outer peripheral side may not be provided on the hinge part.

  The lower plate 100 is, for example, a flat plate. The upper plate 200 has, for example, a plate shape curved upward. In other words, the upper plate 200 has a substantially U-shaped cross section that opens downward. Thus, the upper plate 200 forms an internal space SP between the upper plate 200 and the lower plate 100. The lower plate 100 and the upper plate 200 are bonded to each other by the bonding portions 300 and 320 to form the hollow toilet seat 10 having the internal space SP.

  The upper plate 200 is formed one size larger than the lower plate 100. The inner peripheral end of the upper plate 200 is located closer to the inner peripheral side than the inner peripheral end of the lower plate 100. The outer peripheral end of the upper plate 200 is located on the outer peripheral side of the outer peripheral end of the lower plate 100.

  The bonding portion 300 is provided between the inner peripheral end of the lower plate 100 and the inner peripheral end of the upper plate 200. For example, the bonding portion 300 is exposed only below, and is not exposed above and on the inner peripheral side. Thereby, the design of the toilet seat 10 can be enhanced. In addition, it is possible to prevent the adhesive part 300 (the joint between the lower plate 100 and the upper plate 200) from coming into contact with the buttocks or the legs of the user sitting on the toilet seat 10, and to enhance the sitting comfort of the toilet seat 10. Can also.

  The bonding portion 320 is provided between the outer peripheral end of the lower plate 100 and the outer peripheral end of the upper plate 200. The bonding portion 320 is, for example, exposed only below, and not exposed above and on the outer peripheral side. Thereby, the design of the toilet seat 10 can be further enhanced. On the other hand, the adhesive portion 320 on the outer peripheral side does not contribute much to the sitting comfort. Therefore, the configuration of the bonding portion 320 on the outer peripheral side is not limited to the above, and may be any configuration. The outer peripheral side adhesive portion 320 may be configured to be exposed to the outer peripheral side, for example.

  Upper plate 200 has an inner surface 220 facing lower plate 100. The seating surface 210 is, in other words, a surface opposite to the inner surface 220. The heating unit 400 is provided on the inner surface 220 in the internal space SP. The heating unit 400 is attached to, for example, the inner surface 220. Thus, heating section 400 warms seating surface 210 from the inside.

FIG. 4 is an enlarged cross-sectional view schematically illustrating a part of the toilet seat according to the embodiment.
FIG. 4 schematically shows an enlarged portion of the encircling line B in FIG. That is, FIG. 4 schematically shows an enlarged inner peripheral portion of the cross section of the toilet seat 10.

  As shown in FIG. 4, the seating surface 210 of the upper plate 200 has a curved portion 212 that is curved in an upwardly convex shape so as to descend downward toward the inner peripheral side. The upper plate 200 further has, for example, a bottom surface 230. The bottom surface 230 connects the lower end of the seating surface 210 and the lower end of the inner surface 220. The bottom surface 230 is, in other words, the lower end of the upper plate 200. The bottom surface 230 is, for example, a substantially horizontal plane.

  The thickness T1 of the inner peripheral portion of the upper plate 200 is larger than the thickness T2 of the central portion of the upper plate 200. The thickness T1 of the inner peripheral portion of the upper plate 200 is, in other words, the horizontal length of the inner peripheral portion of the upper plate 200 extending vertically in a cross section orthogonal to the circumferential direction along the opening 200a. The thickness T2 of the central portion of the upper plate 200 is, in other words, the vertical length of the central portion of the upper plate 200 extending in the horizontal direction in a cross section orthogonal to the circumferential direction along the opening 200a.

  The lower plate 100 has a side end surface 110, a bottom surface 120, and an upper surface 130. The upper surface 130 faces upward. The upper surface 130 faces the inner surface 220 of the upper plate 200. The side end face 110 faces sideways. In other words, the side end surface 110 is a surface facing the inner peripheral side. The side end surface 110 is, for example, a portion where the opening 100a of the lower plate 100 is formed. The side end face 110 extends in, for example, a substantially vertical direction. However, the side end surface 110 may be inclined with respect to the vertical direction. The side end face 110 may have at least a portion extending in the vertical direction (up and down direction) and facing the inner peripheral side.

  The lower end of the side end surface 110 is continuous with the bottom surface 120, for example. In other words, the vertical position of the lower end of the side end surface 110 is substantially the same as the vertical position of the bottom surface 120. In addition, a plurality of legs (cushion portions) that come into contact with the upper surface (rim surface) of the toilet 6 may be provided on a surface facing the lower side of the toilet seat 10 (a surface facing the toilet 6) (for example, FIG. 2). reference). The vertical position of the bottom surface 120 is a vertical position in a portion excluding such a leg portion.

  The bottom surface 230 of the upper plate 200 is substantially flush with the bottom surface 120 of the lower plate 100, for example. Thus, the vertical position of the lower end of the upper plate 200 is set to be substantially the same as the vertical position of the lower end of the side end surface 110 of the lower plate 100. The vertical position of the bottom surface 230 of the upper plate 200 is set to be substantially the same as the vertical position of the bottom surface 120 of the lower plate 100 or higher than the bottom surface 120 of the lower plate 100.

  In this example, the vertical position of the lower end 212a of the curved portion 212 is substantially the same as the vertical position of the lower end of the upper plate 200. In other words, in this example, the lower end of the seating surface 210 is the lower end 212a of the curved portion 212.

  However, the lower end of the seating surface 210 is not necessarily the lower end 212a of the curved portion 212. The seating surface 210 may further have, for example, a portion that extends vertically downward from the lower end 212a of the curved portion 212.

  The inner peripheral end 222 of the inner surface 220 of the upper plate 200 is located on the inner peripheral side (the side facing the side end surface 110) than the side end surface 110 of the lower plate 100, and the side end surface of the lower plate 100. It is located below at least a part of 110.

  The inner surface 220 of the upper plate 200 has a first facing portion 224 facing the outer peripheral side and facing the side end surface 110 of the lower plate 100. The first opposing portion 224 is provided on the inner surface 220 by arranging the end portion 222 as described above.

  The upper surface 130 of the lower plate 100 has a peripheral portion 132 extending along the side end surface 110. In other words, the peripheral portion 132 extends along the inner peripheral edge of the lower plate 100. The peripheral portion 132 has, for example, a planar shape. In other words, the peripheral portion 132 is a surface substantially parallel to one plane. The peripheral portion 132 has, for example, a horizontal plane shape. Therefore, when the lower plate 100 is placed so that the peripheral portion 132 is horizontal, the height of the peripheral portion 132 is substantially constant. A part of the peripheral part 132 is substantially flush with another part of the peripheral part 132 on the opposite side across the opening 100a. Here, “substantially parallel” means, for example, a state in which the difference in distance between two surfaces facing each other is 2 mm or less over the entire two surfaces. In addition, “substantially flush” refers to, for example, a state where the difference between the heights of the two surfaces is 2 mm or less.

  The peripheral portion 132 extends annularly along the side end surface 110 (inner peripheral edge) of the lower plate 100, for example. The peripheral portion 132 is provided, for example, over the entire periphery of the inner peripheral edge of the lower plate 100. However, the peripheral portion 132 does not necessarily need to be provided on the entire periphery, and may have a discontinuous portion in a part in the circumferential direction along the inner peripheral edge. The upper surface 130 may have, for example, a plurality of peripheral portions 132 arranged along the inner peripheral edge. In this case, the plurality of peripheral portions 132 are arranged on the same plane. In other words, the plurality of peripheral portions 132 are substantially flush. In the plurality of peripheral portions 132, a configuration may be employed in which a part of the plurality of peripheral portions 132 is substantially flush and another portion different from the one is substantially flush. In other words, the plurality of peripheral portions 132 may have a first group and a second group. The plurality of peripheral portions 132 included in the first group are substantially flush with each other. The plurality of peripheral portions 132 included in the second group are set at different heights from the plurality of peripheral portions 132 of the first group, and are substantially flush with each other. Further, the plurality of peripheral portions 132 may have two or more groups having different heights.

  The inner surface 220 of the upper plate 200 has a second facing portion 226 facing downward and facing the peripheral portion 132. The second opposing portion 226 extends, for example, along the inner peripheral edge of the upper plate 200 and has a planar shape substantially parallel to the peripheral portion 132. The second opposing portion 226 has, for example, a horizontal plane shape. The second opposing portion 226 extends annularly along the inner peripheral edge of the upper plate 200, for example. The second opposing portion 226 is provided, for example, over the entire inner peripheral edge of the upper plate 200. However, like the peripheral portion 132, the second facing portion 226 may have a portion interrupted in a part of the circumferential direction along the inner peripheral edge. The inner surface 220 may have a plurality of second opposing portions 226 arranged along the inner peripheral edge, for example, similarly to the upper surface 130.

  The inner peripheral adhesive portion 300 is provided between the side end surface 110 of the lower plate 100 and the first facing portion 224 of the inner surface 220 of the upper plate 200. As a result, the upper side of the adhesive portion 300 is covered by the upper plate 200, the side portion is covered by the side end surface 110 and the first opposing portion 224, and only the lower portion is exposed. The bonding portion 300 bonds the inner peripheral sides of the lower plate 100 and the upper plate 200 with the side end surface 110 and the first facing portion 224.

  Further, the bonding portion 300 is also provided between the peripheral portion 132 and the second facing portion 226. The bonding portion 300 bonds the lower plate 100 and the upper plate 200 also at the peripheral portion 132 and the second facing portion 226.

  The bonding section 300 has, for example, a first portion 301 and a second portion 302. The first portion 301 is a portion provided between the side end surface 110 and the first facing portion 224. The second portion 302 is a portion provided between the peripheral portion 132 and the second facing portion 226. The second portion 302 may be in contact with the first portion 301 as illustrated, or may be separated from the first portion 301 toward the outer periphery.

  The material of the second portion 302 is different from the material of the first portion 301, for example. For the first portion 301, for example, an adhesive such as an epoxy resin is used. For the second portion 302, for example, a hot-melt adhesive such as synthetic rubber is used. However, the material of the second portion 302 may be the same as the material of the first portion 301.

  For the lower plate 100 and the upper plate 200, for example, a thermosetting resin such as a urea resin or a melamine resin is used. For the lower plate 100 and the upper plate 200, for example, a thermoplastic resin such as polypropylene may be used. Further, the material of the bonding portion 300 is not limited to a material that is bonded by adhesion or adhesion, and may be a material that bonds the lower plate 100 and the upper plate 200 by welding, for example. In this case, for example, the same type of resin material as the lower plate 100 and the upper plate 200 may be used for the bonding portion 300.

FIG. 5 is a plan view schematically illustrating a heating unit according to the embodiment.
FIG. 6 is a partial cross-sectional view schematically illustrating a part of the heating unit according to the embodiment.
As shown in FIGS. 5 and 6, the heating unit 400 includes a first foil body 410, a second foil body 420, and a cord-shaped heating element 430. Heating element 430 is provided between first foil body 410 and second foil body 420. The heating element 430 generates heat by passing an electric current. The heating element 430 is, for example, a heating wire.

  A first adhesive 440 is provided between the second foil 420 and the heating element 430 and between the first foil 410 and the second foil 420. The first adhesive 440 joins the second foil 420 and the heating element 430. The first adhesive 440 joins the first foil 410 and the second foil 420. Thus, the heating element 430 is bonded and held between the first foil 410 and the second foil 420.

  A second adhesive 450 is provided between the first foil body 410 and the inner surface 220 of the upper plate 200. The second adhesive 450 joins the first foil body 410 and the inner surface 220 of the upper plate 200. Thereby, the heating unit 400 is provided on the inner surface 220 of the upper plate 200.

  Each of first foil body 410 and second foil body 420 is a metal foil. The thermal conductivity of the metal foil is higher than the thermal conductivity of the upper plate 200. Examples of the first foil body 410 and the second foil body 420 include, for example, aluminum foil and copper foil.

  As shown in FIG. 5, the heating element 430 meanders between the first foil body 410 and the second foil body 420 and extends over substantially the entire first foil body 410 and the second foil body 420. Be placed. Further, as shown in FIG. 3, the heating unit 400 is provided over substantially the entire inner surface 220 of the upper plate 200. The heating element 430 meanders below the inner surface 220 of the upper plate 200 and is disposed over substantially the entire inner surface 220. Thus, the cord-shaped heating element 430 is provided on the inner surface 220 while bending.

  The heating unit 400 has a central part 400a, an outer peripheral part 400b, and an inner peripheral part 400c. The central portion 400a faces the central portion of the upper plate 200 in a state of being bonded to the inner surface 220. The outer peripheral portion 400b faces the outer peripheral portion of the upper plate 200 in a state of being bonded to the inner surface 220. The inner peripheral portion 400c faces the inner peripheral portion of the upper plate 200 in a state of being bonded to the inner surface 220.

  The density of the heating element 430 provided in the outer peripheral part 400b is higher than the density of the heating element 430 provided in the central part 400a. The density of the heating element 430 provided in the inner peripheral part 400c is higher than the density of the heating element 430 provided in the central part 400a.

  As described above, the heating unit 400 makes the density of the heating element 430 provided on the inner peripheral portion of the inner surface 220 higher than the density of the heating element 430 provided on the central portion of the inner surface 220. Thereby, heating section 400 makes it easier to warm the inner peripheral portion of seating surface 210 than the central portion of seating surface 210.

  The arrangement pattern of the heating elements 430 is not limited to the example shown in FIG. 5, and can be arranged over substantially the entire inner surface 220 of the upper plate 200, and can be arranged on the inner peripheral portion of the inner surface 220. Any pattern that allows the density to be higher than the density of the heating element 430 provided at the center of the inner surface 220 may be used. Further, the heating section 400 is not limited to the one having the cord-shaped heating element 430, and may be provided on the inner surface 220 and may have any configuration capable of heating substantially the entire inner surface 220.

  In manufacturing the toilet seat 10, for example, the second portion 302 of the adhesive is applied to the second facing portion 226 of the upper plate 200, and the lower plate 100 is bonded to the upper plate 200. Thus, the lower plate 100 and the upper plate 200 are temporarily fixed by the second portion 302, and the lower plate 100 and the upper plate 200 are positioned. Thereafter, the lower plate 100 and the upper plate 200 are permanently fixed by filling the first portion 301 as an adhesive between the side end surface 110 and the first facing portion 224.

  Thus, for example, even when a thermosetting resin such as a urea resin or a melamine resin is used for the lower plate 100 and the upper plate 200, the lower plate 100 and the upper plate 200 can be securely and efficiently bonded. Thus, the productivity of the toilet seat 10 can be improved.

  As described above, in the toilet seat 10 according to the present embodiment, the bonding area in the vertical direction can be increased by the first portion 301 of the bonding portion 300 provided between the side end surface 110 and the first facing portion 224. In addition to this, the bonding area can be increased in the horizontal direction by the second portion 302 of the bonding portion 300 provided between the peripheral portion 132 and the second facing portion 226. Thereby, even when the lower plate 100 and the upper plate 200 are bonded, high strength can be obtained.

  In addition, for example, as compared with the case where the contact area is increased only in the vertical direction, the heating unit 400 can be more easily approached to the vicinity of the lower end on the inner peripheral side on the inner surface 220 of the upper plate 200. Further, for example, as compared with the case where the contact area is widened only in the horizontal direction, it is possible to suppress the inner peripheral portion of the upper plate 200 from being excessively thick. Thereby, it is possible to suppress the occurrence of temperature unevenness in the central portion and the inner peripheral portion of the seating surface 210.

  Therefore, even when the upper plate 200 and the lower plate 100 are bonded to each other to form a hollow shape and the heating unit 400 is provided inside, the high strength is obtained and the temperature at the central portion and the inner peripheral portion of the seating surface 210 is increased. The toilet seat 10 that can suppress the occurrence of unevenness can be provided.

  Further, it is possible to prevent the boundary between the upper plate 200 and the lower plate 100 (adhesive portion 300) from being exposed on the inner peripheral side, and the boundary between the upper plate 200 and the lower plate 100 hits the user, resulting in impaired sitting comfort. It is also possible to suppress the situation. The border between the upper plate 200 and the lower plate 100 and the adhesive portion 300 are not exposed on the inner peripheral side, so that the design of the toilet seat 10 can be enhanced.

  Further, in the toilet seat 10, the heating unit 400 is configured to make it easier to warm the inner peripheral portion of the seating surface 210 than the central portion of the seating surface 210. Accordingly, even when it is difficult to approach the heating section 400 to the vicinity of the lower end on the inner peripheral side of the inner surface 220 of the upper plate 200 or when the inner peripheral portion of the upper plate 200 is thick, the center portion and the inner peripheral portion of the seating surface 210 are also provided. Temperature unevenness can be more appropriately suppressed.

  Further, in the toilet seat 10, the heating unit 400 has a cord-shaped heating element 430 provided on the inner surface 220 while bending, and the density of the heating element 430 provided on the inner peripheral portion of the inner surface 220 is lower than that of the inner surface 220. The density is higher than the density of the heating element 430 provided at the center. Thus, the inner peripheral portion of the seating surface 210 can be warmed more easily than the central portion of the seating surface 210 with a relatively simple configuration.

  The configuration that makes it easier to heat the inner peripheral portion of the seating surface 210 than the central portion of the seating surface 210 is not limited to the density of the heating element 430. For example, the inner peripheral portion of the seating surface 210 may be easily heated by setting the calorific value of the heating element at the inner peripheral portion of the seating surface 210 higher than the calorific value of the heating element at the central portion of the seating surface 210. . The configuration that makes it easier to warm the inner peripheral portion of the seating surface 210 than the central portion of the seating surface 210 may be any configuration that makes it easier to warm the inner peripheral portion of the seating surface 210.

  In the toilet seat 10, the thickness T1 of the inner peripheral portion of the upper plate 200 is larger than the thickness T2 of the central portion of the upper plate 200. Thereby, higher strength can be obtained in the inner peripheral portion of the upper plate 200.

The embodiment of the invention has been described. However, the invention is not limited to these descriptions. With respect to the above-described embodiments, those to which a person skilled in the art has appropriately changed the design are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shapes, dimensions, materials, arrangements, and the like of the components included in the toilet apparatus 2 and the toilet seat 10 are not limited to those illustrated, and can be appropriately changed.
In addition, each element included in each of the embodiments described above can be combined as far as technically possible, and a combination of these elements is also included in the scope of the present invention as long as it includes the features of the present invention.

  2 toilet device, 4 toilet seat device, 6 toilet bowl, 10 toilet seat, 12 toilet lid, 14 main body, 100 lower plate, 100a opening, 110 side end surface, 120 bottom surface, 130 upper surface, 132 peripheral portion, 200 upper plate, 200a opening Part, 210 seating surface, 212 curved part, 212a lower end, 220 inner surface, 222 end part, 224 first opposing part, 226 second opposing part, 230 bottom surface, 300 bonding part, 301 first part, 302 second part, 320 bonding part, 400 heating part, 410 first foil body, 420 second foil body, 430 heating element, 440 first adhesive, 450 second adhesive

Claims (4)

The lower plate,
An upper plate provided on the lower plate, having an inner surface facing the lower plate, and a seating surface opposite to the inner surface, forming an internal space between the lower plate,
An adhesive portion that adheres the lower plate and the upper plate,
A heating unit provided on the inner surface in the internal space,
With
The lower plate has an upper surface facing upward, and a side end surface facing the inner peripheral side,
The upper surface has a peripheral portion extending along the side end surface,
An inner peripheral end of the inner surface of the upper plate is located on an inner peripheral side than the side end surface of the lower plate, and is located below at least a part of the side end surface of the lower plate. ,
The inner surface of the upper plate,
A first facing portion facing the outer peripheral side and facing the side end surface;
A second facing portion facing downward and facing the peripheral portion;
Has,
The bonding portion includes a first portion provided between the side end surface and the first facing portion, and a second portion provided between the peripheral portion and the second facing portion. A toilet seat characterized by the following.   The toilet seat according to claim 1, wherein the heating unit is configured to make it easier to warm an inner peripheral portion of the seating surface than a central portion of the seating surface. The heating unit has a cord-shaped heating element provided on the inner surface while bending,
The toilet seat according to claim 2, wherein the density of the heating element provided at an inner peripheral portion of the inner surface is higher than the density of the heating element provided at a central portion of the inner surface.   The toilet seat according to any one of claims 1 to 3, wherein a thickness of an inner peripheral portion of the upper plate is larger than a thickness of a central portion of the upper plate.

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