JP2017218799A - Bathroom floor panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom floor panel that can reduce production costs by preventing a mold from being complicated and dispensing with a reinforcement frame and the like.SOLUTION: A bathroom floor panel 1 has a panel body 10, and a panel shell body 20. The panel shell body 20 is a metal lid plate 22 and a metal bottom plate 21 facing each other vertically. The lid plate 22 covers the top of the panel body 10 and the bottom plate 21 covers the bottom of the panel body 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to bathroom floor panels, and more particularly to floor panels for bathroom washrooms.

  Generally, this type of bathroom floor panel is a compression molded product made of fiber reinforced plastic (hereinafter referred to as “FRP”). The bottom portion of the bathroom floor panel has a complicated uneven shape because there are many reinforcing ribs.

  In the bathroom floor panels of Patent Documents 1 and 2, a foamed resin intermediate layer is provided on a steel bottom plate, and a foamed resin cushion layer is provided on the intermediate layer. The bottom plate is reinforced by a reinforcing frame in which steel materials are assembled vertically and horizontally.

JP2013-209818A JP2015-190288A

In a bathroom floor panel made of FRP, it is necessary to make a mold for compression molding strong enough to withstand the compression pressure of FRP. In addition, the mold part for the bottom of the bathroom floor panel has a very complicated structure because it is necessary to form reinforcing ribs. Moreover, it is necessary to prepare a mold for each type and size of the bathroom floor panel. For this reason, the manufacturing cost was very high. Furthermore, it was difficult to impart various functions such as design properties, antifouling properties, antibacterial properties, and cushioning properties.
Since the bathroom floor panel of Patent Document 1 must have strength only by the bottom plate, it is necessary to provide a reinforcing frame at the bottom of the bottom plate.
In view of the above circumstances, an object of the present invention is to provide a bathroom floor panel in which a mold is not complicated and a reinforcing frame or the like is unnecessary, and the manufacturing cost can be reduced.

In order to solve the above problems, a bathroom floor panel according to the present invention is:
The panel body,
A panel shell that has a metal lid plate and a metal bottom plate facing vertically, the lid plate covering the upper surface of the panel body, and the bottom plate covering the lower surface of the panel body;
It is provided with.

  According to the said bathroom floor panel, intensity | strength is securable by pinching a panel main body from the upper and lower sides with metal panel shells. For this reason, there is no need to provide a reinforcing frame or a reinforcing rib. The thickness of the panel body can be increased accordingly. The panel shell can be manufactured by sheet metal processing or the like, and does not require a complicated mold. The panel body can have a relatively simple shape, and the mold can have a simple structure even when the panel body is molded. Moreover, the same panel body and panel shell can be used for bathroom floor panels of slightly different types and dimensions. As a result, the manufacturing cost of the bathroom floor panel can be reduced. Furthermore, a functional sheet (surface sheet) can be put on the upper surface of the lid plate, and thereby various functions such as design properties, antifouling properties, antibacterial properties, thermal sensitivity and cushioning properties can be imparted. .

The panel shell has a metal side plate that protrudes from the peripheral edge of one of the bottom plate and the cover plate and covers the side surface of the panel body, and is preferably a box shape that houses the panel body. .
By housing the panel main body in the box-shaped panel shell, the outer surface (upper surface, lower surface, and side surface) of the panel main body can be entirely covered with the panel shell. In addition, the panel body can be stably held by the panel shell.

  It is preferable that an adhesive layer is interposed between the panel body and the panel shell. Thereby, the panel body and the panel shell can be bonded and integrated via the adhesive layer, and the panel body can be stably held by the panel shell.

  The panel body is preferably made of a foamed resin. Thereby, even when the panel main body is manufactured by foam molding or injection molding, the required strength of the mold can be set lower than that of FRP, and the manufacturing cost can be surely reduced.

  The panel main body may be made of a foamed resin and may be self-adhered to the bottom plate and the lid plate. This eliminates the need for a mold for the panel body and eliminates the need for an adhesive layer. Therefore, the manufacturing cost can be further reduced.

  The panel body may be made of gypsum board. Thereby, the manufacturing cost can be surely reduced.

  It is preferable that a surface sheet is provided on the upper surface of the lid plate. By adding various functions such as design properties, antifouling properties, antibacterial properties, thermal sensitivity, and cushioning properties to the surface sheet, added value can be increased.

  According to the bathroom floor panel according to the present invention, the mold is not complicated, the reinforcing frame is unnecessary, and the manufacturing cost can be reduced.

FIG. 1 is a plan view of a bathroom floor panel according to a first embodiment of the present invention. Fig.2 (a) is sectional drawing of the said bathroom floor panel which follows the IIa-IIa line | wire of FIG. FIG.2 (b) is sectional drawing of the said bathroom floor panel which follows the IIb-IIb line | wire of Fig.2 (a). FIG. 3 is an exploded perspective view of the bathroom floor panel. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2A, showing the bathroom floor panel with a functional sheet laid on the upper surface. Fig.5 (a) is sectional drawing equivalent to FIG.2 (b) which shows the bathroom floor panel which concerns on 2nd Embodiment of this invention in the state before foam molding of a panel main body. FIG.5 (b) is sectional drawing equivalent to FIG.2 (b) which shows the bathroom floor panel which concerns on the said 2nd Embodiment in the state after foam molding of the panel main body. FIG. 6 is a cross-sectional view corresponding to FIG. 2 (b), showing a bathroom floor panel according to a third embodiment of the present invention. FIG. 7 is a plan view of a bathroom floor panel according to a fourth embodiment of the present invention. Fig.8 (a) is sectional drawing of the said bathroom floor panel which follows the VIIIa-IIa line | wire of FIG. FIG.8 (b) is sectional drawing of the said bathroom floor panel which follows the VIIIb-VIIIb line | wire of Fig.8 (a).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
1 to 4 show a first embodiment of the present invention. As shown in FIGS. 2 (a) and 2 (b), a bathroom floor panel 1 is installed on a base 5 of a bathroom via a support leg 3. The bathroom floor panel 1 constitutes a washroom panel. On one side of the bathroom floor panel 1 (left side in FIG. 2A), a bathtub 2 is provided. The other three sides of the bathroom floor panel 1 are surrounded by a bathroom wall 4. Although illustration is omitted, an entrance door is provided on one of the three bathroom walls 4 of the bathroom floor panel 1.

  As shown in FIG. 1, the bathroom floor panel 1 has a quadrangular shape in plan view. As shown in FIGS. 2A and 2B, the bathroom floor panel 1 includes a panel body 10 and a panel shell 20.

  The panel body 10 is made of a foamed resin such as EPS (foamed polystyrene) and has a heat insulating property. The heat insulation of the panel body 10 is sufficiently higher than the panel shell 20. That is, the thermal conductivity of the panel body 10 is sufficiently smaller than the thermal conductivity of the panel shell 20. The material of the panel body 10 is not limited to EPS, and may be foamed polyethylene, foamed polypropylene, or the like.

  As shown in FIGS. 2 and 3, the panel main body 10 has a substantially rectangular thick plate shape. At the edge of the panel body 10 on the bathtub 2 side, a bathtub side wall 14 is provided so as to protrude upward, and a drain hole through hole 10 f is formed near the longitudinal center of the bathtub side wall 14. Yes. Three (plural) gradient surfaces 10 a are formed on the upper surface of the panel body 10. The inclined surface 10a is inclined downward from the edge of the panel body 10 on the side of the three bathroom walls 4 toward the drain hole through hole 10f.

Edge grooves 15 are formed on the upper surfaces of the three edge portions other than the bathtub side wall 14 in the panel main body 10. An insertion groove 16 is formed between the bathtub side wall 14 and the inclined surface 10a. The bottom surface of the insertion groove 16 is horizontal over the entire length. Furthermore, bolt relief holes 10 g are formed at a plurality of locations on the lower surface of the panel body 10.
In FIG. 2, the thickness of the panel body 10 and the inclination angle of the inclined surface 10 a are exaggerated.
The panel main body 10 may be divided into a plurality of panel main body plates, or the whole may be integrated.

As shown in FIGS. 2 and 3, the panel shell 20 includes a box body 25 and a cover plate 22. The box body 25 integrally includes a bottom plate 21 and four side plates 23. The panel shell 20, that is, the bottom plate 21, the cover plate 22, and the side plates 23 are made of a metal such as stainless steel, iron, or steel. For example, the panel shell 20 is made of a hot dip galvanized steel plate, but may be made of another metal plate such as a stainless steel plate. The box body 25 (the bottom plate 21 and the side plate 23) and the cover plate 22 may be made of different metal materials.
In FIG. 2, the thickness of the panel shell 20 is exaggerated. The actual thickness of the panel shell 20 is 0.4 mm to 1.2 mm or less, for example, about 0.8 mm.

  The bottom plate 21 has a flat plate shape. A drain hole cutout hole 21f is formed at the center of the bottom plate 21 on the bathtub 2 side (left side in FIG. 2A). Bolt insertion holes 21 g are formed at a plurality of locations on the bottom plate 21.

  Side plates 23 are provided on the four edges of the bottom plate 21, respectively. The side plate 23 protrudes upward so as to intersect the bottom plate 21. The side plate 23 </ b> A on the bathtub 2 side (left side in FIG. 2A) protrudes higher than the other three side plates 23.

  As shown in FIGS. 2A and 2B, the cover plate 22 is disposed above the bottom plate 21. The cover plate 22 and the bottom plate 21 are opposed to each other with the panel body 10 interposed therebetween. Most of the upper surface opening portion of the box body 25 including the bottom plate 21 and the side plates 23 is closed by the lid plate 22. The box body 25 and the lid plate 22 define a substantially closed box inner chamber 20a.

  As shown in FIGS. 2 and 3, a drain outlet cutout recess 22 f is formed at the center of the side edge of the lid plate 22 on the bathtub 2 side (upper left in FIG. 3). Three inclined surfaces 22 a are formed on the cover plate 22. The inclined surface 22a is inclined downward from three side edges of the lid plate 22 other than the bathtub 2 side toward the drain outlet notch recess 22f.

  As shown in FIG. 2A and FIG. 3, the panel shell 20 further includes a bathtub side plate 24. The bathtub side plate 24 is bent so as to have an inverted L-shaped cross section, and extends in the direction perpendicular to the plane of FIG. 2A along the edge of the bathtub 2 side (left side in FIG. 2A). The bathtub side plate 24 is made of a metal such as stainless steel, steel, or iron, or a resin, and is preferably an extruded product of aluminum or resin. Of course, the bathtub side plate 24 may be made of the same metal as the box body 25 and the lid plate 22, and may be made of, for example, a hot dip galvanized steel plate. The bathtub side plate 24 may be made of a metal material different from the box body 25 or the lid plate 22.

  As shown in FIGS. 2A and 2B, the panel main body 10 is accommodated in the box inner chamber 20 a of the panel shell 20. The panel shell 20 covers almost the entire outer surface (upper surface, lower surface, and four side surfaces) of the panel body 10. Specifically, the cover plate 22 covers the upper surface of the panel body 10. Each gradient surface 22a covers the corresponding gradient surface 10a. A bottom plate 21 covers the lower surface of the panel body 10. Therefore, the panel body 10 is sandwiched between the bottom plate 21 and the cover plate 22 of the panel shell 20. Further, the side plates 23 are respectively covered on the four side surfaces of the panel body 10.

  As shown to Fig.2 (a), the bathtub side board 24 has covered the side surface (right side surface in Fig.2 (a)) which faces the washing place in the bathtub side wall 14. As shown in FIG. The lower end of the bathtub side plate 24 is inserted into the insertion groove 16. Furthermore, the apron 2e of the bathtub 2 covers the bathtub side plate 24.

  As shown in FIGS. 1 and 2, the three edges of the panel body 10 on the side of the bathroom wall 4 are exposed from between the outer edge of the lid plate 22 and the side plate 23. As a result, the edge groove 15 is exposed. A groove inner surface cover may be covered along the inner surface of the edge groove 15. As shown by a two-dot chain line in FIGS. 2A and 2B, the lower end portion of the bathroom wall 4 is inserted into the edge groove 15.

As shown in FIG. 2, an adhesive layer 30 is interposed between the panel body 10 and the panel shell 20. The panel body 10 and the panel shell 20 are bonded by the adhesive layer 30. Specifically, the lower surface of the panel body 10 and the bottom plate 21 are bonded, the side surface of the panel body 10 and the side plate 23 are bonded, and the upper surface of the panel body 10 and the lid plate 22 are bonded. Furthermore, the bathtub side wall 14 and the bathtub side plate 24 are bonded. Note that at least the upper surface and the lower surface of the panel body 10 may be bonded to the cover plate 22 and the bottom plate 21, respectively.
The material of the adhesive layer 30 may be, for example, a urethane-based adhesive, an epoxy-based adhesive, or a silicon-based adhesive. Although it is preferable to apply the adhesive on the entire surface, the strength is increased. However, the adhesive may be partially applied to the extent that the panel shell 20 satisfies the predetermined strength.

  As shown in FIG. 1, the bathroom floor panel 1 is provided with a drain port member 60. The drain port member 60 is made of a thermosetting resin such as a thermoplastic resin or FRP, and has a rectangular tube shape with an upper surface and a lower surface opened. As shown in FIG. 1, the drain port member 60 is fitted in the notch recess 22f, the through hole 10f, and the notch hole 21f. The interior space of the drain port member 60 is a drain port 61. The drain outlet 61 penetrates the bathroom floor panel 1 up and down.

  As shown in FIG. 2, the bathroom floor panel 1 is supported by support legs 3. The upper end portion of the support bolt of the support leg 3 is accommodated in the bolt escape hole 10g through the bolt insertion hole 21g.

  As shown in FIGS. 3 and 4, a surface sheet 40 (functional sheet) is provided on the upper surface of the bathroom floor panel 1, that is, the upper surface of the lid plate 22. In addition, illustration of the surface sheet 40 is abbreviate | omitted in FIG. In FIG. 2, the top sheet 40 is indicated by a two-dot chain line. As shown in FIG. 3, the top sheet 40 has flexibility, and the sloped surface 40 a is formed by being deformed following the sloped surface 22 a of the cover plate 22.

  As shown in FIG. 4, the top sheet 40 has a multilayer structure including a pattern layer 41, a print layer 42, and a base layer 43. The base layer 43, the printing layer 42, and the pattern layer 41 are laminated in this order from the bottom. Each of the layers 41 to 43 is made of a relatively soft resin or the like. The pattern layer 41 has an uneven pattern. And the pattern layer 41 is provided with antifouling property and antibacterial property. A print layer 42 is interposed between the pattern layer 41 and the base layer 43. The printing layer 42 is subjected to various types of printing that enhance design and advertising properties such as colors and characters. The print layer 42 is visible from the front side (upper side) through the pattern layer 41. The base layer 43 ensures thermal sensitivity and cushioning properties of the bathroom floor panel 1. The base layer 43 and the cover plate 22 are bonded by an adhesive layer 34.

The bathroom floor panel 1 is manufactured as follows.
Using a shearing machine, the steel plate that becomes the box body 25 is sheared. And the box main body 25 is shape | molded using a sheet metal processing machine. Specifically, corner cutting, hole processing (formation of drain hole cutout holes 21f, bolt insertion holes 21g, etc.), side plate 23 bending, and the like are performed. Because of sheet metal processing, the mold does not become complicated.
Moreover, the steel original plate used as the cover plate 22 is sheared using a shearing processing machine. And the cover plate 22 is shape | molded using a sheet metal processing machine. Specifically, corner cutting, hole processing (formation of a drain recess notch 22f, etc.), bending of the slope surface 22a, and the like are performed. The point that a complicated mold is unnecessary is the same as that of the box body 25.
Similarly, the bathtub side plate 24 is formed by shearing and sheet metal processing or extrusion. The lower end portion of the bathtub side plate 24 can be formed in a straight line and does not need to be inclined according to the slope surface 10a.

  Separately, the panel body 10 is foam-molded using a foam molding machine. Since the shape of the panel main body 10 is relatively simple, the foam molding die can have a simple structure. In addition, the required strength of the mold can be set lower than that of FRP compression molding or the like.

Thereafter, an adhesive to be the adhesive layer 30 is applied to the inner surface of the box body 25, and the panel body 10 is accommodated in the box body 25 and bonded. Further, an adhesive is applied to the lower surface of the cover plate 22 or the upper surface of the panel main body 10, and the upper surface of the panel main body 10 is covered with the cover plate 22 and bonded. Further, an adhesive is applied to the bathtub side plate 24 and attached to the bathtub side wall 14, and the lower end portion of the bathtub side plate 24 is inserted into the insertion groove 16.
Installation of the surface sheet 40, connection with the bathtub 2, assembly, and the like may be performed at a construction site in the bathroom.

According to the bathroom floor panel 1, strength can be secured by surrounding the panel body 10 with the metal panel shell 20. Furthermore, the panel main body 10 and the panel shell 20 can be stably held by adhering and integrating them with the adhesive layer 30. For this reason, it is not necessary to provide a reinforcement frame or a reinforcement rib at the bottom of the bathroom floor panel 1. Accordingly, the thickness of the panel body 10 can be set larger. Further, as described above, the mold and the like can be simplified, and the manufacturing cost can be reduced. And the same panel main body 10 and panel shell 20 can be used also for the bathroom floor panel from which a model and a dimension differ somewhat, and versatility can be improved.
Furthermore, by covering the cover plate 22 with the top sheet 40, various functions such as antifouling property, antibacterial property, design property, thermal sensitivity and cushioning property can be imparted.

Next, another embodiment of the present invention will be described. In the following embodiments, the same reference numerals are given to the drawings for the same configurations as those already described, and the description thereof is omitted.
Second Embodiment
FIG. 5 shows a second embodiment of the present invention. As shown in FIG.5 (b), in 2nd Embodiment, the panel main body 10B of the bathroom floor panel 1B is comprised with the foaming urethane resin. A panel main body 10 </ b> B made of urethane foam resin is self-adhered to the panel shell 20 including the bottom plate 21 and the cover plate 22. Therefore, the adhesive layer 30 is not interposed between the panel body 10B and the panel shell 20.

  As shown in FIGS. 5A and 5B, an edge frame 50 is provided at the edge of the bathroom floor panel 1B. The material of the edge frame 50 may be a metal such as aluminum, or may be a thermosetting resin such as a thermoplastic resin or FRP. In addition, the edge frame 50 is preferably an extrusion-molded product that can provide a wide assortment of lengths. The edge frame 50 extends along the edge of the bathroom floor panel 1 </ b> B and straddles between the outer edge of the cover plate 22 and the upper edge of the side plate 23. In addition to the edge groove 51, the edge frame 50 is provided with a locking part 52 with the outer edge of the lid plate 22 and a locking part 53 with the upper edge of the side plate 23. The panel main body 10 </ b> B made of urethane foam resin is also self-adhered to the edge frame 50.

The panel shell 20 (the box body 25 and the cover plate 22) of the bathroom floor panel 1B is manufactured by shirring and sheet metal processing as in the first embodiment. The cover plate 22 is formed with a gradient surface 22a by bending.
Separately, the edge frame 50 is produced by extrusion molding or the like.
Then, as shown in FIG. 5A, the box body 25, the cover plate 22, the edge frame 50, and the like are assembled. At this time, the cover plate 22 can be supported by the edge frame 50. Moreover, the box inner chamber 20a can be made into a closed space by closing the space between the upper edge of the side plate 23 of the box body 25 and the outer edge of the lid plate 22 with the edge frame 50.
Thereafter, as shown in FIG. 5B, the urethane resin stock solution is injected into the inside of the box inner chamber 20a and foamed. Thereby, the panel body 10B is foam-molded. At this time, the panel main body 10B is self-adhered to the box main body 25, the cover plate 22, the edge frame 50, etc. by its own adhesiveness. Therefore, the adhesive application process can be omitted.
According to the bathroom floor panel 1B, the mold of the panel main body 10B is unnecessary. Alternatively, the panel shell 20 and the edge frame 50 are substituted for the mold of the panel body 10B. Therefore, the manufacturing cost can be greatly reduced.

<Third Embodiment>
FIG. 6 shows a third embodiment of the present invention. In 3rd Embodiment, the panel main body 10C of the bathroom floor panel 1C is comprised with the gypsum board. The panel main body 10C made of gypsum board has a flat plate shape. The panel main body 10C and the panel shell 20C (the box main body 25 and the cover plate 22C) are bonded by an adhesive layer 30. The panel main body 10 </ b> C made of gypsum board has higher heat insulation than the metal panel shell 20.

  The cover plate 22C of the panel shell 20C has a flat plate shape. That is, the inclined surface 22a is not formed on the cover plate 22C. A side plate 22b is provided on the outer edge of the cover plate 22C so as to protrude upward.

A drainage gradient plate 80 is provided on the lid plate 22C. The drainage gradient plate 80 is made of a resin such as FRP. The upper surface of the drainage gradient plate 80 is inclined downward toward the drainage port member 60 to form a gradient surface 80a. A side plate portion 22 b is addressed to the side surface of the drainage gradient plate 80. The drainage gradient plate 80 may be divided into a plurality of plate portions, or may be integrated as a whole. The drainage gradient plate 80 and the cover plate 22C may be bonded by an adhesive (not shown).
Furthermore, in FIG. 6, as indicated by a two-dot chain line, a surface sheet 40 is laid on the upper surface of the drainage gradient plate 80. As a result, the surface sheet 40 is provided on the lid plate 22 </ b> C via the drainage gradient plate 80. The drainage gradient plate 80 and the top sheet 40 may be integrated.

The panel shell 20C (box body 25 and lid plate 22C) of the bathroom floor panel 1C is produced by shirring and sheet metal processing as in the first embodiment. However, it is not necessary to form the inclined surface 22a on the lid plate 22.
Separately, the panel main body 10C is produced by a gypsum board. The gypsum board raw material may be cut or drilled, and no mold is required.
Moreover, the drainage gradient plate 80 is resin-molded.
And the adhesive agent used as the adhesive bond layer 30 is apply | coated to the inner surface of the box main body 25, 10 C of panel main bodies are accommodated in the box main body 25, and are bonded together. Further, an adhesive is applied to the lower surface of the cover plate 22C or the upper surface of the gypsum board, and the cover plate 22C is put on the upper surface of the panel body 10C and bonded together.
Further, the drainage gradient plate 80 is installed on the lid plate 22 </ b> C, and the surface sheet 40 is laid on the drainage gradient plate 80.

  In the bathroom floor panel 1C, the outer surface of the panel main body 10C made of gypsum board can be reinforced by covering it with a metal panel shell 20C. Each component of the bathroom floor panel 1C can be manufactured at low cost, and the manufacturing cost can be suppressed.

<Fourth embodiment>
7 and 8 show a fourth embodiment of the present invention. As shown in FIG. 7, in the fourth embodiment, the cover plate 22D has five inclined surfaces 22a and 22g. That is, a narrow gradient surface 22g is interposed between two adjacent gradient surfaces 22a. The inclined surface 22g is inclined downwardly while being widened from the corner on the opposite side to the bathtub 2D side of the cover plate 22D toward the drain outlet 61.

The panel body 10D of the bathroom floor panel 1D is made of a foamed resin such as EPS (foamed polystyrene) as in the first embodiment (FIGS. 1 to 4). Although detailed illustration is omitted, five inclined surfaces are formed on the upper surface of the panel body 10D as well as the cover plate 22D. As shown to Fig.8 (a), the bathtub side wall 14 (FIG.2 (a)) is not formed in the edge by the side of the bathtub 2D of the panel main body 10D, and instead, the bathtub side groove | channel 17 is formed in the upper surface. Has been. As shown by a two-dot chain line in FIG. 8A, the bathtub 2D of the fourth embodiment has a double pan structure of a bathtub body 2a and a bathtub pan 2b. The edge 2f of the bathtub pan 2b is inserted into the bathtub side wall 14. The height of the edge 2f can be reduced by the amount corresponding to the omission of the bathtub side wall 14 (FIG. 2A).
The edge part 40e of the surface sheet 40 is raised along the side surface of the edge part 2f of the bathtub pan 2b. The edge part 40e of the surface sheet 40 is covered with the apron 2e of the bathtub 2D.

As shown in FIG. 8A and FIG. 8B, edge frames 50D are provided at three edges on the bathroom wall 4 side of the bathroom floor panel 1D. The edge frame 50 </ b> D extends along the edge of the bathroom floor panel 1 </ b> D and straddles between the outer edge of the cover plate 22 and the upper edge of the side plate 23. Thereby, a portion between the outer edge of the cover plate 22 and the upper edge of the side plate 23 in the panel main body 10D is covered with the edge frame 50D. As shown in FIG. The edge frames 50 </ b> D that are orthogonal to each other are connected by a corner member 55.
The material of the edge frame 50D and the corner member 55 may be a metal or a resin such as FRP. Preferably, the edge frame 50D is an extruded product made of a thermoplastic resin. Preferably, the corner member 55 is an injection molded product made of a thermoplastic resin.
The edge frame 50D and the corner member 55 are embedded in the panel body 10D. A ridge 54 having a T-shaped cross section is formed on the edge frame 50D so as to protrude obliquely downward. By the ridges 54, the bonding strength between the edge frame 50D and the panel body 10D is increased.

  In the fourth embodiment, the edge frame 50D and the corner member 55 are prepared in advance, and when the panel body 10D is foam-molded, the edge frame 50D and the corner member 55 are insert-molded into the panel body 10D. Other manufacturing steps are the same as those in the first embodiment.

The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit of the invention.
For example, the side plate 23 may be integrated with the lid plate 22 and protrude downward from the peripheral edge of the lid plate 22. Side plates 23 may be provided on the peripheral portions of the bottom plate 21 and the cover plate 22, respectively.
The side plate 23 may be omitted.
When the lid plate 22 has flexibility to follow the slope surface 10 a of the panel body 10, the slope surface 22 a is not necessarily formed on the lid plate 22.
The base layer 43 and the cover plate 22 may be bonded with an adhesive such as a double-sided tape.
A plurality of embodiments may be combined with each other. For example, in 2nd Embodiment (FIG. 5) and 3rd Embodiment (FIG. 6), the bathtub side wall 14 similar to 1st Embodiment (FIG. 2) is provided in the bathtub side part of bathroom floor panel 1B, 1C. Alternatively, a bathtub side groove 17 similar to that of the fourth embodiment (FIG. 8) may be provided.
Also in the first to third embodiments, there may be five gradient surfaces as in the fourth embodiment (FIG. 7). Furthermore, the number and shape of the slope surfaces are not limited to those of the embodiment.

  The present invention is applicable to a bathroom floor panel of a bathroom, for example.

1,1B-1D Bathroom floor panel 2 Bathtub 10, 10B, 10D Panel body 20, 20C Panel shell 21 Bottom plate 22, 22C, 22D Cover plate 23, 23A Side plate 25 Box body 30 Adhesive layer 40 Surface sheet

Claims (7)

The panel body,
A panel shell that has a metal lid plate and a metal bottom plate facing vertically, the lid plate covering the upper surface of the panel body, and the bottom plate covering the lower surface of the panel body;
A bathroom floor panel characterized by comprising:   The panel shell has a metal side plate that protrudes from a peripheral portion of one of the bottom plate and the cover plate and covers a side surface of the panel main body, and has a box shape that accommodates the panel main body. The bathroom floor panel according to claim 1.   The bathroom floor panel according to claim 1 or 2, wherein an adhesive layer is interposed between the panel body and the panel shell.   The bathroom floor panel according to any one of claims 1 to 3, wherein the panel body is made of a foamed resin.   The bathroom floor panel according to claim 1 or 2, wherein the panel body is made of foamed resin and is self-adhered to the bottom plate and the lid plate.   The bathroom floor panel according to claim 1 or 2, wherein the panel body is made of gypsum board.   The bathroom floor panel according to any one of claims 1 to 6, wherein a top sheet is provided on an upper surface of the lid plate.

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