JP2012070983A - Toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet seat device that reliably fixes a skin material to a toilet seat base material.SOLUTION: The toilet seat device includes: the toilet seat base material having top and bottom plates; and the skin material covering the surface of the top plate and caught inside the toilet seat base material from between the top and bottom plates on inner and outer periphery sides of the toilet seat base material. In the toilet seat device, at least one of the top and bottom plates has a vertical rib serving as a margin to weld when welding the top and bottom plates together, on an inner side relative to the ends of the inner and outer periphery sides, while the end of the skin material is fixed to the toilet seat base material once soften when welding and then solidified.

Description

  Aspects of the invention generally relate to toilet seat devices.

For example, there is a toilet seat provided with a surface layer covering the upper surface of the upper plate (Patent Document 1). In the toilet seat described in Patent Document 1, the surface layer is formed of, for example, a resin.
However, in the toilet seat described in Patent Document 1, the surface layer is mechanically fixed. Therefore, an engaging member such as a hook is required to fix the surface layer. In addition, labor for fixing the surface layer is required. Therefore, there is room for improvement in terms of suppressing the manufacturing cost while securely fixing the surface layer to the top plate and the bottom plate.

Moreover, there is a toilet seat device in which a surface material is provided on the upper surface of the upper case (Patent Document 2). In the toilet seat apparatus described in Patent Document 2, the surface material is formed of, for example, resin, and is fixed by laser welding in a state where the end portion is sandwiched between the upper case and the bottom plate.
However, the toilet seat device described in Patent Document 2 has a problem in that the manufacturing cost is higher than other manufacturing processes such as vibration welding because the surface material is fixed by laser welding. That is, there is room for improvement in terms of suppressing the manufacturing cost while securely fixing the surface material to the upper case and the bottom plate.

JP 2008-245667 A JP 2005-13722 A

  This invention is made | formed based on recognition of this subject, and it aims at providing the toilet seat apparatus which can fix a skin material to a toilet seat base material reliably.

  1st invention covers the surface of the toilet seat base material which has an upper board and a bottom board, and the said upper board, and the said inner side and the outer peripheral side of the said toilet seat base material from between the said upper board and the said bottom board A skin material wound inside the toilet seat base, and at least one of the upper plate and the bottom plate is welded to the upper plate and the bottom plate inside the end portions on the inner peripheral side and the outer peripheral side A toilet seat device having a longitudinal rib serving as a welding allowance at the time of fixing, and an end portion of the skin material being fixed to the toilet seat base material by a toilet seat base material softened and solidified after the welding It is.

  According to this toilet seat apparatus, the skin material is fixed to the toilet seat base material by the toilet seat base material that has been softened and then solidified when the upper plate and the bottom plate are welded. Therefore, the skin material is securely or firmly fixed to the toilet seat base material. Moreover, since the skin material is fixed by the solidified toilet seat base material formed at the time of welding, the manufacturing cost can be suppressed.

  According to a second aspect of the present invention, in the first aspect, at least one of the upper plate and the bottom plate includes the softened toilet seat base between the vertical rib and the inner peripheral side and outer peripheral side ends. The toilet seat device further includes a guide path that guides the material to the inner and outer peripheral ends.

  According to this toilet seat device, since the guide path is formed between the vertical ribs and the end portions on the inner and outer peripheral sides, the softened toilet seat base material reaches the skin material at a higher temperature. To do. Therefore, the work process of welding the upper plate and the bottom plate can be further shortened.

  In addition, according to a third aspect, in the second aspect, at least one of the upper plate and the bottom plate further includes a base material reservoir for storing the softened toilet seat base material at an end of the guide path. This is a toilet seat device.

  According to this toilet seat device, since the base material reservoir is formed at the end portion of the guide path, the softened toilet seat base material flows out of the toilet seat device from the gap between the skin material and the toilet seat base material. Can be suppressed. Therefore, the process of removing the burrs protruding outside the toilet seat device after welding becomes unnecessary.

  According to the aspect of the present invention, there is provided a toilet seat device capable of reliably fixing the skin material to the toilet seat base material.

It is an exploded schematic diagram showing the toilet seat apparatus concerning embodiment of this invention. It is an assembly schematic diagram showing the toilet seat apparatus concerning this embodiment. It is a cross-sectional schematic diagram for demonstrating welding of the toilet seat apparatus concerning this embodiment. It is a cross-sectional schematic diagram for demonstrating welding of the toilet seat apparatus concerning other embodiment of this invention. It is a cross-sectional schematic diagram for demonstrating welding of the toilet seat apparatus concerning other embodiment of this invention. It is a cross-sectional schematic diagram for demonstrating welding of the toilet seat apparatus concerning other embodiment of this invention. It is a cross-sectional schematic diagram for demonstrating welding of the toilet seat apparatus concerning other embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is an exploded schematic view showing a toilet seat device according to an embodiment of the present invention.
FIG. 2 is an assembly schematic diagram showing the toilet seat device according to the present embodiment.
2A is a schematic perspective view showing an assembly state of the toilet seat device according to the present embodiment, and FIG. 2B is a schematic cross-sectional view taken along the section AA shown in FIG. FIG.

  The toilet seat device 400 according to the present embodiment includes a toilet seat base 410 and a skin material 460 laminated thereon. As illustrated in FIG. 1, the toilet seat base 410 includes a bottom plate 420 and an upper plate 430. Further, as shown in FIGS. 2A and 2B, the skin material 460 covers the surface of the upper plate 430 of the toilet seat base 410 in a state where the toilet seat device 400 is assembled.

  The bottom plate 420 and the upper plate 430 can be fixed by welding. Examples of the welding include vibration welding, ultrasonic welding, and hot plate welding. Alternatively, the bottom plate 420 and the upper plate 430 can be welded and fixed by heat generated by passing a current through an electric wire disposed on the contact surface between the bottom plate 420 and the upper plate 430.

  As shown in FIG. 2B, the skin material 460 is inserted into the toilet seat base material 410 from between the upper plate 430 and the bottom plate 420 on the inner peripheral side and the outer peripheral side of the toilet seat base material 410. ing. The edge part of the skin material 460 is fixed to the toilet seat base material 410 by the toilet seat base material 410b softened and solidified after welding. That is, the toilet seat base material 410 softens during welding and comes into contact with the end portion of the skin material 460 wound inside the toilet seat base material 410. If it does so, at least one part of the edge part of the skin material 460 will soften with the heat | fever of the softened toilet seat base material 410a. Thereafter, the end portion of the softened skin material 460 is combined with the softened toilet seat base material 410a, and is solidified by heat dissipation or cooling. And the edge part of the skin material 460 is fixed to the toilet seat base material 410 with the solidified toilet seat base material 410b.

  Or the toilet seat base material 410 softens in the case of welding, and contacts the edge part of the skin material 460 wound in the inside of the toilet seat base material 410. FIG. Thereafter, the softened toilet seat base material 410a is solidified by heat dissipation or cooling. And the edge part of the skin material 460 is fixed to the toilet seat base material 410 with the shape of the solidified toilet seat base material 410b.

  That is, in the present specification, within the range of “fixed to the toilet seat base 410 by the solidified toilet seat base 410b”, the softened skin 460 and the softened toilet seat base 410a are combined and solidified to form the skin. Both the case where the end portion of 460 is fixed to the toilet seat base material 410 and the case where the end portion of the skin material 460 is fixed to the toilet seat base material 410 due to the shape of the solidified toilet seat base material 410b are included. To do. The welding of the bottom plate 420 and the upper plate 430 and the fixing of the skin material 460 will be described in detail later.

  The bottom plate 420 and the top plate 430 have a role of supporting the weight of the user sitting on the toilet seat device 400, and are formed of a resin such as polypropylene (PP). On the other hand, the skin material 460 directly contacts the user sitting on the toilet seat device 400 and has a role of giving a soft sitting comfort or reducing a feeling of nearness at low temperatures. For example, the skin material 460 is formed of a laminate of olefin-based thermoplastic elastomer (TPO: Thermo Plastic Olefin), foamed polypropylene, polypropylene, or the like. And the surface of the skin material 460 has a smoother and more precise surface and can suppress adhesion of dirt. In other words, the skin material 460 can provide care for the toilet seat apparatus 400 while providing better sitting comfort.

  In the toilet seat device 400 according to the present embodiment, a cavity 401 is formed between the bottom plate 420 and the upper plate 430. For example, a heater (not shown) for heating the toilet seat device 400 can be installed in the cavity 401. According to this, the seating surface of the toilet seat device 400 (the surface of the skin material 460 on the side on which a person is seated) can be warmed.

FIG. 3 is a schematic cross-sectional view for explaining the welding of the toilet seat apparatus according to the present embodiment.
FIG. 3 is an enlarged schematic view of the region B shown in FIG.
Moreover, Fig.3 (a) is a cross-sectional schematic diagram showing the state before welding, and FIG.3 (b) is a cross-sectional schematic diagram showing the state after welding. Furthermore, since the welding process and the welding state on the inner peripheral side and the outer peripheral side of the toilet seat base material 410 are the same, in the following description, the welding on the outer peripheral side will be described as an example.

  As shown in FIG. 3A, the bottom plate 420 has vertical ribs 421 that serve as welding margins when the bottom plate 420 and the upper plate 430 are welded at the joint portion with the upper plate 430. The vertical ribs 421 protrude upward from the end of the bottom plate 420 (on the upper plate 430 side). The vertical rib 421 is formed on the inner side of the bottom plate outer peripheral side end portion 423. A bottom plate guide path 425 for guiding the toilet seat base material 410a softened during welding to the bottom plate outer peripheral side end portion 423 is formed between the vertical ribs 421 and the bottom plate outer peripheral side end portion 423. The bottom plate guide path 425 has a base plate reservoir portion that holds the toilet seat base material 410a softened at the time of welding and holds the toilet seat base material 410b solidified after being softened at the end on the bottom plate outer peripheral side end portion 423 side. 427 is formed.

  The upper plate 430 includes receiving ribs 431 that receive the vertical ribs 421 when the bottom plate 420 and the upper plate 430 are welded to each other at the joint portion with the bottom plate 420. The receiving rib 431 is formed inside the upper plate outer peripheral side end portion 433. A first upper plate guide path 435 is formed between the receiving rib 431 and the upper plate outer peripheral side end portion 433 to guide the toilet seat base material 410a softened during welding to the upper plate outer peripheral side end portion 433. Yes. Further, on the inner side of the receiving rib 431, the toilet seat base material 410a softened during welding is guided to the upper plate outer peripheral side end portion 433, or the softened toilet seat base material 410a moves toward the cavity 401 side. A second upper plate guide path 436 that suppresses the above is formed.

  In this embodiment, the case where the bottom plate 420 and the top plate 430 are joined by vibration welding will be described as an example. First, as shown in FIG. 3A, the skin material 460 is wound around the upper plate 430 before the bottom plate 420 and the upper plate 430 are welded. Subsequently, the upper plate 430 and the bottom plate 420 are pressed in a direction in which they contact each other as indicated by arrows A1 and A2 shown in FIG. Then, while pressing the upper plate 430 and the bottom plate 420, at least one of the upper plate 430 and the bottom plate 420 is vibrated in the horizontal direction.

  Then, frictional heat is generated at the joint between the top plate 430 and the bottom plate 420. Due to the frictional heat, the leading end of the vertical rib 421 is gradually softened. At this time, the front end portion of the vertical rib 421 has a shape thinner than that of the receiving rib 431, so that vibration energy is concentrated on the front end portion of the vertical rib 421. Therefore, the tip end portion of the vertical rib 421 is efficiently softened in a shorter time.

  And as the front-end | tip part of the vertical rib 421 softens, as shown in FIG.3 (b), the toilet seat base material 410 of the upper board 430 and the bottom board 420 softens. The softened toilet seat base material 410a is guided to the bottom plate guide path 425, the first upper plate guide path 435, and the second upper plate guide path 436, and to the bottom plate outer peripheral side end portion 423 and the upper plate outer peripheral side end portion 433. Moving. At this time, as shown in FIG. 3A and FIG. 3B, when the bottom plate guide path 425 and the first upper plate guide path 435 are inclined toward the base material reservoir 427, The softened toilet seat base material 410a is easy to move to the base material reservoir 427.

  Subsequently, the softened toilet seat base material 410 a collects in the base material reservoir 427 and comes into contact with the end of the skin material 460. If it does so, at least one part of the edge part of the skin material 460 will soften with the heat | fever of the softened toilet seat base material 410a. Thereafter, the end portion of the softened skin material 460 is combined with the softened toilet seat base material 410a, and is solidified by heat dissipation or cooling. And the edge part of the skin material 460 is fixed to the toilet seat base material 410 with the solidified toilet seat base material 410b.

  Alternatively, the softened toilet seat base material 410 a is accumulated in the base material reservoir portion 427 and is in contact with the end portion of the skin material 460. Thereafter, the softened toilet seat base material 410a is solidified by heat dissipation or cooling. And the edge part of the skin material 460 is fixed to the toilet seat base material 410 with the shape of the solidified toilet seat base material 410b.

  At this time, as shown in FIG. 3B, the joint between the upper plate 430 and the bottom plate 420 is a joint between the upper plate outer peripheral side end portion 433 and the bottom plate outer peripheral side end portion 423 in the state after welding. It is equivalent to or above (the gap). Therefore, the softened toilet seat base material 410 a is easily moved to the end portion of the skin material 460. The vibration during vibration welding is appropriately stopped when a certain amount of the toilet seat base material 410 is softened. Alternatively, the vibration during vibration welding is appropriately stopped when a predetermined time has elapsed.

  According to this embodiment, the skin material 460 is fixed to the toilet seat base material 410 by the toilet seat base material 410b that is softened and then solidified when the upper plate 430 and the bottom plate 420 are welded. Therefore, the skin material 460 is securely or firmly fixed to the toilet seat base material 410. When the softened skin material 460 and the softened toilet seat base material 410 a are combined and solidified, the skin material 460 is more firmly fixed to the toilet seat base material 410. Moreover, since the skin material 460 is fixed by the solidified toilet seat base material 410b formed at the time of welding, manufacturing cost can be suppressed. Further, when the skin material 460 is fixed by the solidified toilet seat base material 410b over the entire circumference of the toilet seat device 400, liquid such as water enters from the gap between the skin material 460 and the toilet seat base material 410. Can be suppressed.

  Further, since the bottom plate 420 is formed with a bottom plate guiding path 425 and the upper plate 430 is formed with first and second upper plate guiding paths 435 and 436, the softened toilet seat base material 410 has a higher temperature. In this state, it reaches the skin material 460 and the base material reservoir 427. Therefore, the work process of welding the top plate 430 and the bottom plate 420 can be further shortened. Thereby, manufacturing cost can be held down. Further, since the base material reservoir 427 is formed at the end of the bottom plate guide path 425 on the bottom plate outer peripheral side end 423 side, the toilet seat device 400 is formed from the gap between the skin material 460 and the toilet seat base 410. It is possible to prevent the toilet seat base material 410a softened to the outside from flowing out. Therefore, the process of removing the burrs protruding outside the toilet seat device 400 after welding becomes unnecessary. Thereby, manufacturing cost can be held down.

  In the present embodiment, the vertical ribs 421 of the bottom plate 420 and at least the end portions of the skin material 460 may be formed of the same kind of material. Here, in the present specification, “the same kind of material” refers to materials having compatibility with each other. Specifically, for example, “olefin resin including those added with an elastomer” may be mentioned. Can do. In the present specification, “compatible” means “a property in which two or more kinds of substances have an affinity for each other to form a solution or a mixture”.

According to this, since the joint portion of the toilet seat base material 410 and at least the end portion of the skin material 460 are the same type of material, that is, the softened toilet seat base material 410a and at least the end portion of the skin material 460 are compatible with each other. Therefore, the softened skin material 460 and the softened toilet seat base material 410a are more easily bonded to each other than when formed of different materials. Therefore, the fixing strength of the skin material 460 can be further increased by the solidified toilet seat base material 410b.
In the present specification, the material of the same type as that of the vertical rib 421 of the bottom plate 420 is not limited to the case where the end portion of the skin material 460 is formed of the same type of material as that of the vertical rib 421 of the bottom plate 420. The case where the portion is impregnated is also included in the range that “the vertical rib 421 of the bottom plate 420 and the surface of the skin material 460 are formed of the same kind of material”.

  In the present embodiment, at least the end of the skin material 460 may be formed of a material having a melting temperature lower than the melting temperature of the vertical ribs 421 of the bottom plate 420. According to this, compared with the case where the melting temperature of the end portion of the skin material 460 is higher than the melting temperature of the vertical rib 421, at least a part of the end portion of the skin material 460 is caused by the heat of the softened toilet seat base material 410a. Easy to soften. Therefore, even if there is a certain distance between the joint between the top plate 430 and the bottom plate 420 and the skin material 460, the skin material 460 can be reliably fixed to the toilet seat base material 410. In other words, even when the softened toilet seat base material 410 is radiated or cooled to lower the temperature, the skin material 460 can be reliably fixed to the toilet seat base material 410.

Next, another embodiment of the present invention will be described with reference to the drawings.
FIG. 4 is a schematic cross-sectional view for explaining welding of a toilet seat device according to another embodiment of the present invention.
FIG. 4 corresponds to an enlarged schematic view of the region B shown in FIG.

  The bottom plate guide path 425a of the bottom plate 420a of this embodiment is not inclined like the bottom plate guide path 425 of the bottom plate 420 described above with reference to FIG. That is, as illustrated in FIG. 4, the bottom plate guide path 425 a of the present embodiment extends substantially horizontally from the vertical rib 421 toward the base material reservoir 427. The other structure of the bottom plate 420a is the same as the structure of the bottom plate 420 described above with reference to FIGS. The structure of the upper plate 430 is as described above with reference to FIGS.

  According to the present embodiment, the softened toilet seat base material 410a is guided to the bottom plate guiding path 425a, the first upper plate guiding path 435, and the second upper plate guiding path 436, and the bottom plate outer peripheral side end 423 and the upper It moves to the plate outer peripheral side end 433. Further, more softened toilet seat base material 410a and solidified toilet seat base material 410b are accumulated between the bottom plate guide path 425a and the first upper plate guide path 435 than in the embodiment described above with reference to FIG.

  Therefore, when more softened toilet seat base material 410a is solidified by heat dissipation or cooling, the end portion of the skin material 460 is fixed by more solidified toilet seat base material 410b. Thereby, the skin material 460 can be fixed to the toilet seat base material 410 more reliably or more firmly.

FIG. 5 is a schematic cross-sectional view for explaining welding of a toilet seat apparatus according to still another embodiment of the present invention.
FIG. 5 corresponds to an enlarged schematic view of the region B shown in FIG.

  The first upper plate guide path 435a of the upper plate 430a of the present embodiment is not inclined like the first upper plate guide path 435 of the upper plate 430 described above with reference to FIG. That is, as illustrated in FIG. 5, the first upper plate guide path 435 a of the present embodiment extends substantially horizontally from the joint portion with the bottom plate 420 toward the upper plate outer peripheral side end portion 433. Other structures of the upper plate 430a are the same as those of the upper plate 430 described above with reference to FIGS. The structure of the bottom plate 420 is as described above with reference to FIGS.

  According to the present embodiment, the first upper plate guiding path 435a can suppress the upward movement of the softened toilet seat base material 410a. Therefore, the softened toilet seat base material 410a is guided to the bottom plate guide path 425, the first upper plate guide path 435a, and the second upper plate guide path 436, and the bottom plate outer peripheral side end portion 423 and the upper plate outer peripheral side end portion. Move to 433. Thereafter, as described above with reference to FIG. 3, the end portion of the skin material 460 is fixed to the toilet seat base material 410 by the solidified toilet seat base material 410b.

FIG. 6 is a schematic cross-sectional view for explaining welding of a toilet seat apparatus according to still another embodiment of the present invention.
FIG. 6 corresponds to an enlarged schematic view of the area B shown in FIG.

  The upper plate 430b of the present embodiment has an upper plate inclined surface 433a inclined at the end surface of the upper plate outer peripheral side end portion 433. Further, the bottom plate 420b of the present embodiment has a bottom plate inclined surface 423a that is inclined at the end surface of the bottom plate outer peripheral side end portion 423. In other words, the upper plate 430b has an upper plate inclined surface 433a that is inclined at a mating portion with the bottom plate outer peripheral side end portion 423 of the bottom plate 420b. Further, the bottom plate 420b has a bottom plate inclined surface 423a that is inclined at a joint portion with the upper plate outer peripheral side end portion 433 of the upper plate 430b. Other structures of the upper plate 430b and the bottom plate 420b are the same as the structures of the upper plate 430 and the bottom plate 420 described above with reference to FIGS.

  According to the present embodiment, the inclined upper plate inclined surface 433a and the bottom plate inclined surface 423a are formed at the joint portion between the upper plate outer peripheral side end portion 433 and the bottom plate outer peripheral side end portion 423. The outflow of the softened toilet seat base material 410a to the outside of the toilet seat device 400 from the gap with the toilet seat base material 410 can be further suppressed. Therefore, the process of removing the burrs protruding outside the toilet seat device 400 after welding becomes unnecessary. Thereby, manufacturing cost can be suppressed more.

FIG. 7 is a schematic cross-sectional view for explaining welding of a toilet seat apparatus according to still another embodiment of the present invention.
Note that FIG. 7 corresponds to an enlarged schematic view of the region B shown in FIG.

  In the present embodiment, a derivative 441 separate from the upper plate 430c is attached to the end of the receiving rib 431 of the upper plate 430c. The derivative 441 is, for example, a compressible deformation packing. The derivative 441 is formed of a material that can withstand the temperature at the time of welding.

  As shown in FIG. 7, the derivative 441 is attached in the vicinity of the joint with the bottom plate 420, and guides the toilet seat base material 410 a softened during welding to the bottom plate outer peripheral side end portion 423. Alternatively, the derivative 441 can suppress the softened toilet seat base material 410a from moving upward. Therefore, the softened toilet seat base material 410 a is guided to the bottom plate guiding path 425, the derivative 441, and the second upper plate guiding path 436, and moves to the bottom plate outer peripheral side end portion 423 and the upper plate outer peripheral side end portion 433. Thereafter, as described above with reference to FIG. 3, the end portion of the skin material 460 is fixed to the toilet seat base material 410 by the solidified toilet seat base material 410b.

  According to this embodiment, the skin material 460 can be reliably fixed to the toilet seat base material 410. Further, the operator can attach the derivative 441 to the end portion of the receiving rib 431 of the upper plate 430c after the skin material 460 is wound around the upper plate outer peripheral side end portion 433 of the upper plate 430c. According to this, the worker can more easily insert the end portion of the skin material 460 into the wider gap between the receiving rib 431 and the upper plate outer peripheral side end portion 433. After that, the worker causes the skin material 460 to be wound around the upper plate outer peripheral side end portion 433, and by attaching the derivative 441 to the end portion of the receiving rib 431, the skin material 460 is detached from the upper plate 430c before welding. Can be prevented.

  As described above, according to the embodiment of the present invention, the skin material 460 is fixed to the toilet seat base material 410 by the toilet seat base material 410b softened and solidified after the upper plate 430 and the bottom plate 420 are welded. Is done. Therefore, the skin material 460 is securely or firmly fixed to the toilet seat base material 410. Moreover, since the skin material 460 is fixed by the solidified toilet seat base material 410b formed at the time of welding, manufacturing cost can be suppressed.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, and the like of each element included in the bottom plate 420 and the top plate 430, the bottom plate guide path 425, the first top plate guide path 435, the second top plate guide path 436, and the derivative 441 An installation form etc. are not necessarily limited to what was illustrated, but can be changed suitably.
In the description of the welding described above with reference to FIGS. 3 to 7, the welding on the outer peripheral side of the toilet seat device 400 is described as an example, but the welding process and the welding state on the outer peripheral side and the inner peripheral side are the same.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  400 toilet seat device, 401 cavity portion, 410, 410a, 410b toilet seat base material, 420, 420a, 420b bottom plate, 421 vertical rib, 423 bottom plate outer peripheral side end, 423a bottom plate inclined surface, 425, 425a bottom plate guide path, 427 base material 430, 430a, 430b, 430c upper plate, 431 receiving rib, 433 upper plate outer peripheral side end, 433a upper plate inclined surface, 435, 435a first upper plate guide path, 436 second upper plate guide path , 441 derivatives, 460 skin material

Claims (3)

A toilet seat substrate having a top plate and a bottom plate;
Covering the surface of the upper plate, and a skin material wound inside the toilet seat base from between the upper plate and the bottom plate on the inner peripheral side and the outer peripheral side of the toilet seat base;
With
At least one of the upper plate and the bottom plate has a longitudinal rib serving as a welding allowance when the upper plate and the bottom plate are welded to the inner side of the inner peripheral side and the outer peripheral side end,
The toilet seat device is characterized in that an end portion of the skin material is fixed to the toilet seat base material by a toilet seat base material that is softened and solidified after welding.   At least one of the upper plate and the bottom plate guides the softened toilet seat base material to the inner peripheral side and outer peripheral end portions between the vertical ribs and the inner peripheral side and outer peripheral end portions. The toilet seat device according to claim 1, further comprising a guideway for performing the operation.   The toilet seat device according to claim 2, wherein at least one of the upper plate and the bottom plate further includes a base material reservoir portion that stores the softened toilet seat base material at an end portion of the guide path.

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