JPH11343650A - Waterproof floor pan for bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten the weight of a waterproof floor pan for a bathroom. SOLUTION: A waterproof floor pan for a bathroom is constructed of a bottom plate 11 made of inorganic material, a wall mounting part 12 made of low-foamed plastic and placed on the bottom plate 11 along the edge of the bottom plate 11 so as to receive a wall panel 26, a foamed plastic plate (13), 14 placed on the bottom plate 11 so as to fill the inside of the wall mounting part 12, and a protection layer 20 covering the upper surface of the foamed plastic plate 14 and the wall mounting part 12. As most of the part of the waterproof pan is constructed of foamed plastic with low specific gravity, a product weight is greatly reduced in comparison with a conventional one, so that it can be handled with ease. Manufacture is facilitated, as it requires only the assembly of the foamed plastic blocks, so that manufacturing costs can be lowered. Because of its low weight, transportation costs and construction costs in a field can be also lowered in comparison with those for a conventional one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a technique for reducing the weight of a waterproof floor pan in a bathroom.

[0002]

2. Description of the Related Art FIG. 4 is a cross-sectional view of a typical bathroom.
Indicates a plurality. The same applies hereinafter. ) Via waterproof floor pan 103
Are attached, and the bathtub 104 is placed on the waterproof floor pan 103, and a wall panel 105 is attached to the edge of the waterproof floor pan 103.
This is a bathroom unit that stands upright. 106 is a mixing faucet,
107 is a mixing faucet with a shower hose, and 108 is a shower head. FIG. 5 is a perspective view of a typical waterproof floor pan 103. The waterproof floor pan 103 integrally includes, for example, a washing place 111, a slightly deepened bathtub mounting portion 112, a drain port 113, and a peripheral wall portion 114. It is formed.

FIGS. 6 (a) to 6 (d) are views showing the procedure for manufacturing a conventional simple waterproof floor pan. (A): A steel frame 121 having a shape corresponding to a simple waterproof floor pan to be manufactured is prepared. (B): Plywood 122 is spread on a steel frame 121. 12
Reference numeral 3 denotes a drain port, and this portion is left open. Then, the plywood 122 is fixed to the bottom of the steel frame 121 with screws 124. The protrusions of the screws 124 are scraped off with a sander or grinder. Further, the steel frame 12
1 is coated with a black rust preventive paint 125.

(C): A glass fiber mat 127 is laid on the plywood 122 and along the peripheral wall 126, and the mat 12
7 is impregnated with a resin (resin). This means that the fiber reinforced plastic layer 128 has been formed. (D): Spraying a gel coat 129 on the surface of the fiber reinforced plastic layer 128. The gel coat 129 is cured by keeping it in a furnace at a high temperature.

[0005] The simple waterproof floor pan 130 is now completed. It is characterized in that the steel frame 121 is used as a molding die and reinforcing material during resin molding, and there is no need to prepare a wooden die or another molding die. .

[0006]

However, in the above-mentioned technology, the steel frame 121 also serving as a reinforcing material is indispensable, and since the steel frame 121 is heavy, the whole of the simple waterproof floor pan becomes heavy. Moving the steel frame on the production line puts a heavy burden on the workers and increases the production cost. Increasing costs will increase overall costs. Then, this invention aims at weight reduction of the waterproof floor pan of a bathroom.

[0007]

In order to achieve the above object, a low foam plastic material is mounted on a bottom plate made of an inorganic material and mounted on the bottom plate along an edge of the bottom plate for receiving a wall panel. And a foam plastic plate placed on the bottom plate so as to be laid in the wall placing portion,
The foamed plastic plate and the protective layer covering the upper surface of the wall mounting portion constitute a waterproof floor pan in a bathroom.

Most of the waterproof floor pans were made of foamed plastic. Foamed plastic is a foam in which bubbles are formed in the plastic. High foaming means a high proportion of bubbles, low foaming means a low proportion of bubbles, and medium foaming is an intermediate. In this embodiment, the medium foamed plastic is simply referred to as foamed plastic. Since the foamed plastic has a low specific gravity (less than 1.0), the product weight is significantly lighter than conventional products, and handling is easy. Further, since the foamed plastic block is merely assembled, the production is easy and the production cost can be reduced.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is an exploded perspective view of a waterproof floor pan in a bathroom according to the present invention. In order to manufacture a waterproof floor pan 10, a bottom plate 11 made of an inorganic material and an edge of the bottom plate 11 for receiving a wall panel are shown. A wall mounting part 12 made of a low-foam plastic material placed on the bottom plate 11 and a washing place 13 and a bathtub mounting made of a foamed plastic plate placed on the bottom plate 11 so as to be laid in the wall mounting parts 12. Station 14
And a partition wall section 15 made of a low-foam plastic material, which partitions the washing place 13 and the bathtub mounting section 14, and a resin plate 21 and a tile plate 23 as a protective layer 20. 1
6 is a drain hole fitting.

[0010] These materials are appropriately cut to predetermined dimensions,
Assembling is performed by joining them sequentially by means such as bonding and screwing. That is, most of the waterproof floor pan was made of foamed plastic. Foam plastic has low specific gravity (less than 1.0)
Therefore, the product weight is significantly lighter than the conventional product, and the handling is easy. Further, since the foamed plastic block is merely assembled, the production is easy and the production cost can be reduced.

The properties of each material are shown in the following table. In addition, the lowermost layer was described at the bottom and the uppermost layer was described at the top, in the order of construction.

[0012]

[Table 1]

The bottom plate 11 is preferably a volcanic vitreous composite plate, having a specific gravity of 0.71 and a light bending strength of 212 k.
g / cm ² , a large reinforcing material. It is suitable as fire protection material because it is semi-combustible. The wall mounting portion 12 and the partition wall portion 15 are preferably made of a polystyrene double foam having a high density, and have a flexural strength of 192 kg / cm ² , so that a sufficient load can be received. Since the heat-resistant temperature is 80 ° C., it sufficiently withstands hot water in a bathroom. The bathtub mounting part 14 and the washing part 13 are preferably made of polystyrene with 10 times the density of low density. Although the bending strength is small, there is no fear that a load is locally applied, so it is sufficient. Since the heat-resistant temperature is 80 ° C., it sufficiently withstands hot water in a bathroom. The protective layer 20 will be described separately.

FIG. 2 is a cross-sectional view of the completed waterproof floor pan of the present invention, in which a wall mounting portion 12 and a partition wall portion 15 are mounted on a sturdy bottom plate 11, and a bathtub mounting portion 14 and a washing place portion 13 are spread and protected. The waterproof floor pan 10 covered with a layer 20 is shown. 25, 25 are leg blocks, 26, 26 are wall mounting parts 1
The reference numeral 27 denotes a wall panel placed on the bathtub mounting portion 14.

FIG. 3 is a detailed view of part 3 of FIG. 2, and is an enlarged sectional view of the protective layer according to the present invention. The protective layer 20 is a resin plate 2 covering the washing area 13 made of 10-fold polystyrene foam.
1, a paint 23 applied on the upper surface of the resin plate 21, and a tile plate 22 or a thin FRP plate attached thereon. Details of these materials are described in Table 2.

[0016]

[Table 2]

The resin plate 21 is made of an ABS (acrylonitrile butadiene styrene copolymer) resin which is a thermoplastic resin having high impact resistance, and is relatively weak in a state where the load applied to the washing section 13 and the bathtub mounting section 14 is appropriately dispersed. Polystyrene 10
It plays a role as an intermediate material (load dispersing material) acting on double foaming. The paint 23 is preferably a urethane-based or polyurea-based waterproof paint, and plays a role in preventing downward flooding. The tile plate 22 is attached in order to keep the surface design as a washing place, and the type is arbitrary as long as it is a thin FRP plate or any other decorative plate having heat resistance and water resistance.

The foamed plastic according to the first aspect is selected from foamed resins such as foamed polyethylene, foamed polypropylene, and polyurethane in addition to foamed polystyrene.
The selection may be made in consideration of the heat resistance or the like, and the type is not particularly limited.

[0019]

According to the present invention, the following effects are exhibited by the above configuration. Claim 1 is that most of the waterproof floor pan is made of foamed plastic, and the foamed plastic has a low specific gravity.
Product weight is significantly lighter than conventional products, and handling is easier. Further, since the foamed plastic block is merely assembled, the production is easy and the production cost can be reduced. Since it is lightweight, transportation costs and construction costs on site can be reduced as compared with the conventional case.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a waterproof floor pan in a bathroom according to the present invention.

FIG. 2 is a cross-sectional view of the completed waterproof floor pan of the present invention.

FIG. 3 is a detailed view of part 3 of FIG. 2, showing an enlarged sectional view of a protective layer according to the present invention.

FIG. 4 is a cross-sectional view of a typical bathroom.

FIG. 5 is a perspective view of a typical waterproof floor pan.

FIG. 6 is a manufacturing procedure diagram of a conventional simple waterproof floor pan.

[Explanation of symbols]

10: waterproof floor pan in bathroom, 11: bottom plate, 12: wall mounting part, 13: foamed plastic plate (washing area), 14: foamed plastic plate (bath tub mounting part), 15: partition wall part,
Reference numeral 20: protective layer, 21: resin plate, 22: tile plate, 23:
Paint, 26 ... wall panel, 27 ... tub, 100 ... bathroom.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuji Zaimae 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture Totoki Equipment Co., Ltd. (72) Inventor Hiroyuki Otsuki 2 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture No.1-1, Totoki Kiki Co., Ltd.

Claims (1)

[Claims] 1. A bottom plate made of an inorganic material, a wall mounting portion made of a low-foam plastic material placed on the bottom plate along an edge of the bottom plate for receiving a wall panel, and a bottom plate laid down in the wall mounting portion. And a foam plastic plate placed on the
A waterproof floor pan for a bathroom, comprising the foamed plastic plate and a protective layer covering the upper surface of the wall mounting portion.