JPH10219776A - Bathroom floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate manufacture by specifying thickness, and laminating and integrating an FRP made floor body omitting a rib, a high density foaming urethane layer specifying thickness and an expansion ratio and an exterior layer. SOLUTION: A bathroom floor structure is constituted of an FRP made floor main body 1, a high density foaming urethane layer 2 attached to the inner face of the floor main body 1 and an exterior layer 3 provided on the urethane layer 2. At this time, the reinforcing rib of the obverse surface side of the floor main body 1 conventionally provided is omitted, and thickness of the floor main body 1 is made 2.5-6mm. In addition, thickness of the urethane layer 2 is made 12-30mm, and an expansion ratio is made 7-10 times to improve strength and heat insulation. Next, at need, a hot water circulation pipe is buried in the urethane layer 2 to heat the floor. Thereby a mold can be easily manufactured, material of the floor body can be saved, a high quality product can be simply manufactured without impairing beauty, a bathroom floor face is made difficult to cool, and bathing can be comfortably performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bathroom floor structure made of FRP.

[0002]

2. Description of the Related Art FRP (glass fiber reinforced plastic,
A bathroom floor structure made of fiberglass reinforced plastic generally requires a plurality of ribs b to be provided on the back surface a for reinforcement as shown in FIGS. 6 and 7. In order to manufacture a bathroom floor structure made of FRP, molding by a mold is used. In order to mold the above-described rib, a groove for forming a rib is formed in the mold. It was necessary to pour the material into.

[0003]

Therefore, in the conventional bathroom floor structure, a large amount of material is required for forming the ribs, and the mold requires a plurality of grooves for forming the ribs as described above. The manufacture of the mold was cumbersome and costly. Further, there is a case where the material does not sufficiently enter the groove of the mold during molding, and in such a case, a defect of the product (such as chipping of a rib) occurs, the yield is deteriorated, and the cost is further increased. Therefore, conventionally, it has been difficult to set the molding conditions (such as the temperature distribution of the mold).

Further, since FRP is a plastic composite material, which is a material obtained by combining a resin with a reinforcing material (glass fiber), the fiber enters a groove for forming a rib during molding. It was difficult to obtain sufficient strength for the ribs. In addition, in the product, the shrinkage ratio differs between the portion having the rib and the portion having no rib, which may cause "sink" and impair the aesthetic appearance.

Accordingly, an object of the present invention is to provide a bathroom floor structure which is easy to manufacture and has excellent strength because the ribs on the back side of the FRP floor main body can be omitted.

[0006]

In order to achieve the above-mentioned object, a bathroom floor structure according to the present invention comprises an FRP floor body having no ribs on the back side and an inner surface of the FRP floor body. And a high-density urethane foam layer provided between the inner surface of the FRP floor main body and the exterior layer.

Further, another bathroom floor structure includes an FRP floor main body in which ribs on the back side are omitted, an exterior layer disposed on the inner surface side of the FRP floor main body, and an inner surface of the FRP floor main body. The high-density urethane foam layer provided between the outer layer and the high-density urethane foam layer is integrally laminated, and a hot water circulation pipe is embedded in the high-density urethane foam layer.

At this time, the thickness of the FRP floor body is set to 2.5 mm or more.
6mm and 12mm thick urethane foam layer
It is preferable to set the thickness to 30 mm or to set the expansion ratio of the high-density urethane foam layer to 7 to 10 times.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a bathroom floor structure according to the present invention. The bathroom floor structure includes an FRP floor body 1 and a high-density urethane foam layer 2 attached to an inner surface 1a of the FRP floor body 1.
And an exterior layer 3 provided on the high-density urethane foam layer 2.
And. The FRP floor main body 1 has a flat rectangular main body 4 inclined at a predetermined angle with respect to the horizontal plane.
And a rising wall 5 rising from the outer peripheral edge of the main body 4. The thickness T1 of the FRP floor body ₁ is set to, for example, about 2.5 mm to 6 mm.

That is, on the back side of the FRP floor body 1, reinforcing ribs are omitted, and the high-density urethane foam layer 2 is formed.
Is disposed on the inner surface side. This high-density urethane foam layer 2
Of the _second thickness T ₂ is set to, for example, 12mm~30mm position. The expansion ratio of the high-density urethane foam layer 2 is set, for example, to 7 to 10 times. That is, by setting this magnification, the strength is excellent and the heat insulating effect is excellent. By the way, the exterior layer 3 may be a layer in which a plurality of tiles 6 are laid, or a layer in which a stone board or a wooden board (for example, made of hinoki material) is laid.

However, as shown in FIGS. 2 and 3, the hot water circulation pipe 7 may be embedded in the high-density urethane foam layer 2. The hot water circulating pipe 7 is disposed in a meandering manner in the high-density urethane foam layer 2, and a connector for supplying hot water is provided at one end thereof, and a connector for discharging hot water is provided at the other end thereof. Have been. That is, the hot water is supplied to the hot water circulation pipe 7 from one end side,
The water is circulated through the hot water circulation pipe 7 and discharged from the other end side, whereby the floor heating of the bathroom floor structure can be performed. Further, as shown in FIG. 2, a heat radiating plate 15 may be provided on the back surface side of the exterior layer 3. By providing the heat radiating plate 15, the heat of the hot water circulation pipe 7 can be transmitted to the entire exterior layer 3 and more excellent floor heating can be performed.

Next, a method of manufacturing the bathroom floor structure will be described. First, the FRP floor main body 1 is molded using a molding die (not shown), and then, as shown in FIG.
A plurality of tiles 6 are laid on top of each other, and then the hot water circulation pipe 7 and the heat radiating plate 15 are placed on the tiles 6 as necessary, and the FRP floor main body 1 is stacked thereon. In this case, the exterior layer 3 composed of a plurality of tiles 6 is provided in the recessed portion 10 of the FRP floor main body 1 (this recessed portion 10 is, as shown in FIG. ).

Next, after the upper mold 11 is lowered, a material (for example, polyol and isocyanate) is injected from the upper mold 11 through an injection hole 12 (see FIG. 1) provided in the main body 4 of the FRP floor main body 1. Liquid) is injected into a hollow portion 13 (see FIG. 5) formed between the inner surface of the main body 4 and the back surface of the outer layer 3, and is foamed. At this time, the expansion ratio is 7 times or more as described above.
About 10 times. After that, the foaming mold 8 is opened, and the product (bathroom floor structure) may be taken out from the foaming mold 8.

By the way, the thickness T ₁ of the FRP floor body ₁
Is set to about 2.5 mm to 6 mm, and the thickness T ₂ of the high-density urethane foam layer 2 is set to about 12 mm to 30 mm.
If the FRP floor body 1 thickness T ₁ of 2.5mm below and high-density urethane foam layer 2 to the _second thickness T ₂ of less than 12 mm, inferior strength as a bathroom floor structure, conversely, the thickness T ₁ or exceed 6 mm, if T ₂ is or exceed 30 mm, since the thickness dimension of the bathroom floor structure is large, and the bulky.

Therefore, according to the bathroom floor structure constructed as described above, when the FRP floor main body 1 is molded, there is no need to provide a reinforcing rib on the back side, so that the FRP floor body 1 is easy to manufacture. The floor body 1 is provided with a high-density urethane foam layer 2 and is excellent in strength as a whole bathroom floor structure. Further, the formed high-density urethane foam layer 2 is relatively lightweight, does not increase the weight of the entire bathroom floor structure, and can be easily transported and installed.

By forming the high-density urethane foam layer 2, excellent heat insulating properties are exhibited, and the floor is hardly cooled and a comfortable bath can be taken.

[0018]

Since the present invention is configured as described above, the following effects can be obtained.

According to the bathroom floor structure of the first aspect,
Since the ribs are omitted, the material can be reduced as compared with the related art, and the molding die does not need a groove for the rib, so that the production of the die is easy and the cost is not increased. In addition, high quality products can be easily manufactured without deteriorating aesthetics, and have excellent strength, heat insulation, and a bathroom floor structure that is hard to cool, so that you can take a comfortable bath. be able to. According to the bathroom floor structure of the second aspect, the same effect as that of the bathroom floor structure of the first aspect can be obtained, and so-called floor heating can be performed, so that the user can take a bath more comfortably. According to the bathroom floor structure of the third aspect, the strength and superiority are further improved, and the overall weight is effectively prevented from becoming large, so that the transportation and installation are easy. According to the bathroom floor structure of the fourth aspect, the high-density urethane foam layer 2 can effectively exhibit the role of a heat insulating material and a reinforcing material.

[Brief description of the drawings]

FIG. 1 is a sectional view of a bathroom floor structure according to the present invention.

FIG. 2 is a sectional view of a main part of another bathroom floor structure.

FIG. 3 is a simplified perspective view.

FIG. 4 is a simplified diagram showing a manufacturing method.

FIG. 5 is an enlarged sectional view of a main part.

FIG. 6 is a bottom view of a conventional bathroom floor structure.

FIG. 7 is a sectional view of a conventional bathroom floor structure.

[Explanation of symbols]

1 FRP made bed body 1a inside surface 2 density urethane foam layer 3 outer layer 7 pipe T ₁ wall thickness T ₂ thickness for hot water circulation

Claims (4)

[Claims] 1. An FRP floor body 1 omitting ribs on the back side, an exterior layer 3 disposed on an inner surface 1a side of the FRP floor body 1, an inner surface 1a of the FRP floor body 1 and an exterior. A bathroom floor structure, wherein a high-density urethane foam layer 2 disposed between the layer 3 and the layer 3 is integrally laminated. 2. An FRP floor body 1 omitting ribs on the back side, an exterior layer 3 disposed on the inner surface 1a side of the FRP floor body 1, an inner surface 1a of the FRP floor body 1 and an exterior. A bathroom floor structure characterized in that a high-density urethane foam layer 2 disposed between the high-density urethane foam layer 2 and the high-density urethane foam layer 2 is integrally laminated, and a hot water circulation pipe 7 is embedded in the high-density urethane foam layer 2. . 3. The thickness T1 of the FRP floor body ₁ is set to 2.5 mm or more.
6 mm and the thickness T ₂ of the high-density urethane foam layer _2.
The bathroom floor structure according to claim 1 or 2, wherein is set to 12 mm to 30 mm. 4. The high-density urethane layer 2 has an expansion ratio of 7
The bathroom floor structure according to claim 1 or 2, wherein the bathroom floor structure is set to be 10 to 10 times.