JP6744024B2 - Bathroom floor panel and manufacturing method thereof - Google Patents

Description

The present invention relates to a bathroom floor panel, and more particularly to a floor panel for a bathroom washroom.

Generally, this type of bathroom floor panel is a compression molded product made of fiber reinforced plastic (hereinafter referred to as "FRP"). The bottom of the bathroom floor panel has a number of reinforcing ribs, resulting in a complicated uneven shape.

In the bathroom floor panels of Patent Documents 1 and 2, an intermediate layer made of foam resin is provided on a steel bottom plate, and a cushion layer made of foam resin is provided on the intermediate layer. The bottom plate is reinforced by a reinforcing frame made of steel material that is assembled in the vertical and horizontal directions.

JP, 2013-209818, A JP, 2005-190288, A

In a bathroom floor panel made of FRP, it is necessary to make the 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 model and size of the bathroom floor panel. Therefore, the manufacturing cost was very high. Further, it has been difficult to impart various functions such as designability, antifouling property, antibacterial property and cushioning property.
Since the bathroom floor panel of Patent Document 1 needs to 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, the present invention is to provide a bathroom floor panel that does not require a complicated mold and does not require a reinforcing frame or the like and can reduce manufacturing costs.

In order to solve the above problems, the bathroom floor panel according to the present invention,
Panel body,
A panel shell that has a metal lid plate and a metal bottom plate that are vertically opposed to each other, 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 characterized by having.

According to the bathroom floor panel, strength can be ensured by sandwiching the panel body between the panel shells made of metal from above and below. Therefore, it is not necessary 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 it is molded by the mold. Moreover, the same panel body and panel shell can be used for bathroom floor panels of slightly different models and sizes. As a result, the manufacturing cost of the bathroom floor panel can be reduced. Furthermore, a functional sheet (top sheet) can be covered on the upper surface of the lid plate, and thereby various functions such as design, antifouling property, antibacterial property, thermal sensitivity and cushioning property can be imparted. ..

It is preferable that the panel shell has a metal side plate projecting from a peripheral edge portion of one of the bottom plate and the lid plate and covering a side surface of the panel body, and has a box shape for housing the panel body. ..
By accommodating the panel body in the box-shaped panel shell, the outer surface (upper surface, lower surface, and side surface) of the panel body can be entirely covered with the panel shell. In addition, the panel shell can stably hold the panel body.

An adhesive layer is preferably interposed between the panel body and the panel shell. Accordingly, the panel body and the panel shell can be bonded and integrated via the adhesive layer, and the panel shell can be stably held by the panel shell.

It is preferable that the panel body is made of foamed resin. As a result, even when the panel 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 reliably reduced.

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

The panel body may be made of gypsum board. This can surely reduce the manufacturing cost.

It is preferable that a topsheet is provided on the upper surface of the lid plate. The added value can be increased by imparting various functions such as designability, antifouling property, antibacterial property, thermal sensitivity and cushioning property to the surface sheet.

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

FIG. 1 is a plan view of a bathroom floor panel according to the first embodiment of the present invention. FIG. 2A is a sectional view of the bathroom floor panel taken along the line IIa-IIa in FIG. FIG. 2B is a sectional view of the bathroom floor panel taken along the line IIb-IIb in FIG. FIG. 3 is an exploded perspective view of the bathroom floor panel. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2A, showing the bathroom floor panel with a functional sheet laid on the upper surface. FIG. 5(a) is a sectional view corresponding to FIG. 2(b) showing a bathroom floor panel according to a second embodiment of the present invention in a state before foam molding of the panel body. FIG. 5( b) is a sectional view corresponding to FIG. 2( b) showing the bathroom floor panel according to the second embodiment in a state after foaming the panel body. FIG. 6 is a sectional view corresponding to FIG. 2B, showing a bathroom floor panel according to the third embodiment of the present invention. FIG. 7 is a plan view of a bathroom floor panel according to the fourth embodiment of the present invention. FIG. 8A is a sectional view of the bathroom floor panel taken along the line VIIIa-IIa in FIG. 7. FIG. 8B is a sectional view of the bathroom floor panel taken along line VIIIb-VIIIb in FIG. 8A.

Embodiments of the present invention will be described below with reference to the drawings.
<First Embodiment>
1 to 4 show a first embodiment of the present invention. As shown in FIGS. 2A and 2B, the bathroom floor panel 1 is installed on the base 5 of the bathroom through the support legs 3. The bathroom floor panel 1 constitutes a washroom panel. A bathtub 2 is provided on one side (left side in FIG. 2A) of the bathroom floor panel 1. The other three sides of the bathroom floor panel 1 are surrounded by bathroom walls 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 rectangular shape in a plan view. As shown in FIGS. 2A and 2B, the bathroom floor panel 1 includes a panel body 10 and a panel shell body 20.

The panel body 10 is made of 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 that of 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 body 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 body 10 has a substantially quadrangular thick plate shape. A tub side wall 14 is provided at an edge of the panel body 10 on the tub 2 side so as to project upward, and a drain hole through hole 10f is formed near the longitudinal center of the tub side wall 14. There is. Three (plural) sloped surfaces 10 a are formed on the upper surface of the panel body 10. The inclined surface 10a is inclined downward from the three edges of the panel body 10 on the side of the bathroom wall 4 toward the drain hole through hole 10f.

Edge grooves 15 are formed on the upper surfaces of the three edge portions of the panel body 10 other than the bathtub side wall 14. 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. Further, bolt escape holes 10g are formed at a plurality of positions 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 sloped surface 10a are exaggerated.
The panel body 10 may be divided into a plurality of panel body plates, or may be integrally formed as a whole.

As shown in FIGS. 2 and 3, the panel shell body 20 includes a box body 25 and a cover plate 22. The box body 25 integrally has a bottom plate 21 and four side plates 23. The panel shell 20, that is, the bottom plate 21, the lid plate 22, and the side plate 23 are made of metal such as stainless steel, iron, and 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 plate. The box body 25 (bottom plate 21 and side plate 23) and the lid 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 body 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 notch hole 21f is formed in the center portion of the bottom plate 21 on the bathtub 2 side (left side in FIG. 2A). Bolt insertion holes 21g 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 is projected upward so as to intersect with the bottom plate 21. The side plate 23A on the bathtub 2 side (the left side in FIG. 2A) is projected higher than the other three side plates 23.

As shown in FIGS. 2A and 2B, the cover plate 22 is arranged above the bottom plate 21 with a distance. The lid plate 22 and the bottom plate 21 vertically face each other with the panel body 10 interposed therebetween. Most of the open upper surface of the box body 25 including the bottom plate 21 and the side plates 23 is closed by the cover plate 22. The box body 25 and the cover plate 22 define a box chamber 20a that is substantially closed.

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

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

As shown in FIGS. 2A and 2B, the panel body 10 is housed in the box inner chamber 20 a of the panel shell 20. Substantially the entire outer surface (upper surface, lower surface, and four side surfaces) of the panel body 10 is covered with the panel shell body 20. Specifically, the cover plate 22 covers the upper surface of the panel body 10. Each sloped surface 22a covers the corresponding sloped 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 lid plate 22 of the panel shell 20. Further, side plates 23 cover the four side surfaces of the panel body 10, respectively.

As shown in FIG. 2A, a side surface of the bathtub side wall 14 facing the washing area (a right side surface in FIG. 2A) is covered with a bathtub side plate 24. The lower end portion 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, three edge portions of the panel body 10 on the bathroom wall 4 side 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 the chain double-dashed line in FIGS. 2A and 2B, the lower end 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 body 20. The panel body 10 and the panel shell body 20 are bonded by the adhesive layer 30. Specifically, the lower surface of the panel body 10 and the bottom plate 21 are bonded together, the side surface of the panel body 10 and the side plate 23 are bonded together, and the upper surface of the panel body 10 and the lid plate 22 are bonded together. Furthermore, the bathtub side wall 14 and the bathtub side plate 24 are adhered. At least the upper surface and the lower surface of the panel body 10 may be adhered to the lid plate 22 and the bottom plate 21, respectively.
The material of the adhesive layer 30 may be, for example, a urethane adhesive, an epoxy adhesive, or a silicon adhesive. Although it is preferable to apply the adhesive to the entire surface to increase the strength, the adhesive may be applied partially to the extent that the panel shell 20 satisfies a 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 open upper surface and a lower surface. As shown in FIG. 1, the drainage member 60 is fitted into the cutout recess 22f, the through hole 10f, and the cutout hole 21f. The inner space of the drainage member 60 serves as a drainage 61. A drain 61 extends vertically through the bathroom floor panel 1.

As shown in FIG. 2, the bathroom floor panel 1 is supported by the support legs 3. The upper end portion of the support bolt of the support leg portion 3 is housed in the bolt escape hole 10g via 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. Note that the illustration of the topsheet 40 is omitted in FIG. 1. In FIG. 2, the topsheet 40 is indicated by a chain double-dashed line. As shown in FIG. 3, the topsheet 40 has flexibility and is deformed following the sloped surface 22a of the cover plate 22 to form the sloped surface 40a.

As shown in FIG. 4, the topsheet 40 has a multilayer structure including a pattern layer 41, a print layer 42, and a base layer 43. The base layer 43, the print 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. An uneven pattern is formed on the pattern layer 41. In addition, the pattern layer 41 is provided with antifouling property and antibacterial property. The print layer 42 is interposed between the pattern layer 41 and the base layer 43. The printing layer 42 is provided with various kinds of printing such as colors and characters that enhance the design and advertisement. The printed layer 42 is visible from the front side (upper side) through the pattern layer 41. The base layer 43 ensures the thermal sensation and cushioning properties of the bathroom floor panel 1. The base layer 43 and the cover plate 22 are adhered by an adhesive layer 34.

The bathroom floor panel 1 is manufactured as follows.
Using a shearing machine, the steel plate serving as the box body 25 is shirred. Then, the box body 25 is formed using a sheet metal processing machine. Specifically, corner cutting, hole processing (formation of the drain hole notch hole 21f, the bolt insertion hole 21g, and the like), bending of the side plate 23, and the like are performed. Since it is sheet metal processing, the die does not become complicated.
Further, the steel plate serving as the cover plate 22 is shirred using a shearing machine. Then, the lid plate 22 is formed using a sheet metal processing machine. Specifically, corner cutting, hole processing (formation of the drainage recess 22f, etc.), bending of the sloped surface 22a, etc. are performed. It is similar to the box main body 25 in that a complicated mold is unnecessary.
Similarly, the bath side plate 24 is formed by shirring and sheet metal processing, or extrusion molding. The lower end portion of the bathtub side plate 24 can be formed in a straight line shape, and it is not necessary to incline it to match the sloped surface 10a.

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

After that, an adhesive that forms the adhesive layer 30 is applied to the inner surface of the box body 25, and the panel body 10 is housed in the box body 25 and bonded. In addition, an adhesive is applied to the lower surface of the lid plate 22 or the upper surface of the panel body 10, and the lid plate 22 is put on the upper surface of the panel body 10 and bonded. Further, an adhesive is applied to the bathtub side plate 24 to be 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 the construction site of 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 body 10 and the panel shell body 20 are adhered and integrated by the adhesive layer 30, so that the panel body 10 can be stably held. Therefore, it is not necessary to provide a reinforcing frame or a reinforcing rib on the bottom of the bathroom floor panel 1. Therefore, 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. In addition, the same panel body 10 and panel shell 20 can be used for bathroom floor panels of slightly different models and sizes, and versatility can be enhanced.
Furthermore, by covering the cover sheet 22 with the surface sheet 40, various functions such as antifouling property, antibacterial property, design property, thermal sensitivity, and cushion property can be imparted.

Next, another embodiment of the present invention will be described. In the following embodiments, the same reference numerals will be given to the drawings for the configurations that are the same as those described above, and the description thereof will be omitted.
<Second Embodiment>
FIG. 5 shows a second embodiment of the present invention. As shown in FIG. 5B, in the second embodiment, the panel body 10B of the bathroom floor panel 1B is made of urethane foam resin. A panel body 10B made of urethane foam resin is self-bonded to a panel shell 20 including a bottom plate 21 and a 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 a thermosetting resin such as a thermoplastic resin or FRP. Further, the edge frame 50 is preferably an extrusion-molded product capable of abundant lineup of lengths. The edge frame 50 extends along the edge of the bathroom floor panel 1B and extends between the outer edge of the lid 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 an engagement portion 52 with the outer edge of the lid plate 22 and an engagement portion 53 with the upper edge of the side plate 23. The panel body 10B made of urethane foam resin is also self-bonded 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 working as in the first embodiment. A sloped surface 22a is formed on the cover plate 22 by bending.
The edge frame 50 is separately manufactured by extrusion molding or the like.
Then, as shown in FIG. 5A, the box body 25, the lid plate 22, the edge frame 50, and the like are assembled. At this time, the lid plate 22 can be supported by the edge frame 50. Further, 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, the box inner chamber 20a can be made a closed space.
Then, as shown in FIG. 5B, the urethane resin stock solution is injected into the inside of the box inner chamber 20a and foamed. As a result, the panel body 10B is foam-molded. At this time, the panel body 10B is self-bonded to the box body 25, the lid plate 22, the edge frame 50 and the like by its own adhesiveness. Therefore, the adhesive application step can be omitted.
According to the bathroom floor panel 1B, the mold of the panel body 10B is unnecessary. Alternatively, the panel shell body 20, the edge frame 50, and the like are used as a mold for the panel body 10B. Therefore, the manufacturing cost can be significantly reduced.

<Third Embodiment>
FIG. 6 shows a third embodiment of the present invention. In the third embodiment, the panel body 10C of the bathroom floor panel 1C is made of gypsum board. The panel 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 adhered by the adhesive layer 30. The panel body 10C made of gypsum board has higher heat insulation than the panel shell 20 made of metal.

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

A drainage gradient plate 80 is provided on the cover plate 22C. The drainage gradient plate 80 is made of resin such as FRP. The upper surface of the drainage slope plate 80 is inclined downward toward the drainage port member 60 to form a sloped surface 80a. The side plate portion 22b is provided on 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 integrally formed as a whole. The drainage gradient plate 80 and the cover plate 22C may be bonded to each other with an adhesive (not shown).
Further, in FIG. 6, the surface sheet 40 is laid on the upper surface of the drainage gradient plate 80, as shown by the chain double-dashed line. As a result, the topsheet 40 is provided on the cover plate 22C via the drainage gradient plate 80. The drainage gradient plate 80 and the topsheet 40 may be integrated.

The panel shell 20C (the box body 25 and the cover plate 22C) of the bathroom floor panel 1C is manufactured by shirring and sheet metal processing as in the first embodiment. However, it is not necessary to form the inclined surface 22a on the cover plate 22.
Separately, the panel body 10C is manufactured by using a gypsum board. The raw material of the gypsum board may be cut or punched, and no mold is required.
Further, the drainage gradient plate 80 is resin-molded.
Then, an adhesive that will form the adhesive layer 30 is applied to the inner surface of the box body 25, and the panel body 10C is housed in the box body 25 and bonded. 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.
Further, the drainage gradient plate 80 is installed on the lid plate 22C, 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 body 10C made of gypsum board can be reinforced by covering it with a metal panel shell 20C. Each constituent member 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 sloped surfaces 22a and 22g. That is, a narrow slope surface 22g is interposed between two adjacent slope surfaces 22a. The inclined surface 22g is inclined downward while widening from the corner of the cover plate 22D on the side opposite to the bath 2D side toward the drainage port 61.

The panel body 10D of the bathroom floor panel 1D is made of foamed resin such as EPS (foamed polystyrene) as in the first embodiment (FIGS. 1 to 4). Although not shown in detail, five sloped surfaces are formed on the upper surface of the panel body 10D similarly to the cover plate 22D. As shown in FIG. 8A, the bathtub side wall 14 (FIG. 2A) is not formed on the edge of the panel body 10D on the bathtub 2D side, and instead, the bathtub groove 17 is formed on the upper surface. Has been done. As shown by the chain double-dashed line in FIG. 8A, the bathtub 2D according to the fourth embodiment has a double pan structure including a bathtub body 2a and a bathtub 2b. The edge portion 2f of the bathtub pan 2b is inserted into the bathtub side wall 14. The height of the edge portion 2f can be lowered by the amount by which the bathtub side wall 14 (FIG. 2A) is omitted.
The end portion 40e of the topsheet 40 is raised along the side surface of the edge portion 2f of the bathtub pan 2b. The end portion 40e of the topsheet 40 is covered with the apron 2e of the bathtub 2D.

As shown in FIGS. 8A and 8B, edge frames 50D are provided on the three edge portions of the bathroom floor panel 1D on the bathroom wall 4 side, respectively. The edge frame 50D extends along the edge of the bathroom floor panel 1D and straddles between the outer edge of the lid plate 22 and the upper edge of the side plate 23. As a result, the portion of the panel body 10D between the outer edge of the lid plate 22 and the upper edge of the side plate 23 is covered by the edge frame 50D. As shown in FIG. The edge frames 50D 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 metal or resin such as FRP. Preferably, the edge frame 50D is an extrusion molded 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 project obliquely downward. The ridge 54 enhances the bonding strength between the edge frame 50D and the panel body 10D.

In the fourth embodiment, the edge frame 50D and the corner member 55 are produced 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. The other manufacturing process is the same as that of 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 cover plate 22 and protrude downward from the peripheral edge of the cover plate 22. Side plates 23 may be provided on the peripheral portions of the bottom plate 21 and the lid plate 22, respectively.
The side plate 23 may be omitted.
When the cover plate 22 has the flexibility to follow the sloped surface 10a of the panel body 10, the sloped surface 22a does not necessarily have to be formed on the cover plate 22.
The base layer 43 and the cover plate 22 may be adhered to each other with an adhesive such as a double-sided tape.
Multiple embodiments may be combined with each other. For example, in the second embodiment (FIG. 5) and the third embodiment (FIG. 6), the bathtub side wall 14 similar to that of the first embodiment (FIG. 2) is provided on the bathtub side portions of the bathroom floor panels 1B and 1C. Alternatively, the bathtub side groove 17 similar to that in the fourth embodiment (FIG. 8) may be provided.
Also in the first to third embodiments, as in the fourth embodiment (FIG. 7), there may be five sloped surfaces. Furthermore, the number and shape of the sloped surfaces are not limited to those of the embodiment.

INDUSTRIAL APPLICABILITY The present invention can be applied 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 Lid plate 23, 23A Side plate 25 Box body 30 Adhesive layer 40 Surface sheet

Claims (7)

A thick plate-shaped panel body of uniform material ,
It has a metal lid plate and a metal bottom plate that are vertically opposed to each other, and a metal side plate that projects from the peripheral portion of the bottom plate or the lid plate, and has a box shape for accommodating the panel body, and the lid. plates overlies the upper surface of the panel body, the bottom plate Ri is the of the lower surface of the panel body, and the object to be a Ru panel shell on the side surfaces of the side plates the panel body,
An adhesive layer interposed between the panel body and the panel shell to bond the panel body and the panel shell,
A bathroom floor panel , comprising: a top surface of the panel body and a cover plate, wherein a slope for drainage is formed . The side plate of the panel shell is projected from the peripheral portion of the bottom plate,
An edge frame having a groove for receiving a lower end portion of the bathroom wall is housed in an edge portion of an upper surface of the panel body, or an edge groove for receiving a lower end portion of the bathroom wall is formed. The bathroom floor panel described in 1. A thick plate-shaped panel body of uniform material,
It has a metal lid plate and a metal bottom plate that are vertically opposed to each other, and a metal side plate protruding from the peripheral portion of the bottom plate, and has a box shape for accommodating the panel body, and the lid plate is the panel. A panel shell that covers the upper surface of the main body, the bottom plate covers the lower surface of the panel main body, the side plates cover the side surfaces of the panel main body, and the panel shell is bonded to the panel main body.
An edge frame having a groove for receiving the lower end of the bathroom wall, extending along the edge of the upper surface and straddling the outer edge of the lid plate and the upper edge of the side plate,
A bathroom floor panel characterized by having. A thick plate-shaped panel body of uniform material,
It has a metal lid plate and a metal bottom plate that are vertically opposed to each other, and a metal side plate that projects from the peripheral portion of the bottom plate or the lid plate, and has a box shape for accommodating the panel body. A plate covers the upper surface of the panel body, the bottom plate covers the lower surface of the panel body, the side plates cover the side surfaces of the panel body, and a panel shell bonded to the panel body.
A slope for drainage is formed on the upper surface, and a drainage slope plate provided on the lid plate,
A bathroom floor panel, characterized in that a groove for receiving a lower end portion of a bathroom wall is formed at an edge portion of an upper surface of the drainage slope plate. The bathroom floor panel according to any one of claims 1 to 4, wherein the panel shell has a thickness of 0.4 mm to 1.2 mm . A thick plate-shaped panel body made of a uniform material having a slope for drainage on the upper surface, a metal lid plate having a slope formed along the upper surface, and a metal bottom plate, and the bottom plate or the lid plate. Prepare a box-shaped panel shell having metal side plates projected from the peripheral edge of
An adhesive is applied to the inner surface of the panel shell, or an adhesive is applied to the inner surface of the panel shell and the upper surface of the panel body except the lower surface of the lid plate, and the panel body is accommodated in the panel shell. Then, the method for manufacturing a bathroom floor panel, characterized in that the panel body and the panel shell are bonded together via the adhesive. Prepare a box-shaped panel shell having a metal lid plate having a gradient for drainage, a metal bottom plate, and a metal side plate protruding from the peripheral portion of the bottom plate or the lid plate. ,
The panel body is foam-molded in the panel shell body by injecting a foaming resin into the panel shell body closed by the lid plate, the bottom plate and the side plate to foam the resin. A method for manufacturing a bathroom floor panel, which comprises self-bonding to a panel shell.

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