JPH0861835A - Floor material for refrigeration and freezer - Google Patents

Abstract

(57) [Summary] [Purpose] To combine heat insulation and moisture proof, and to construct a floor in a refrigerator / freezer economically with a short construction period. [Constitution] At least one side of the rectangular foam resin plate (1),
One of the concave portion (2) and the convex portion (3) that can fit with the concave portion (2) is provided, and the moisture-proof film material (4) is integrated on the surface of the foamed resin plate (1). Adhered to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material used for refrigerators and freezers for commercial use, warehouses, laboratory, cold storage, etc.

[0002]

2. Description of the Related Art As a floor structure for a refrigerator or a freezer, as shown in FIG. 4, a heat insulating layer (52) made of foamed resin is formed on a basic concrete (51) by so-called in-situ foaming. The reinforcing mortar layer (53) was cast on the (52).

As another floor structure, as shown in FIG. 5, a plurality of Styrofoam plates (54), which have been foam-molded to a predetermined size in advance, are spread over a basic concrete (51), and then the Styrofoam plates are placed on the Styrofoam plate. Mortar or plywood (55) was laminated.

[0004]

Among the conventional floor structures described above, in the former case, since the thickness of the heat insulation layer (52) formed by in-situ foaming is not constant, the thinnest portion is usually used as a reference. Further, the foaming work will be performed. Therefore, the heat insulating layer (52) tends to be formed thicker than necessary. Along with this, since the mortar layer (53) for reinforcement must also be cast thickly, there are disadvantages that the material cost is high and the construction period is long. Further, since the heat insulating layer (52) itself has no moisture proof property, there is a disadvantage that a moisture proof sheet must be separately laid on the floor surface.

Further, in the latter floor structure, since a gap is created between the adjacent Styrofoam plates (54), the heat insulating performance is deteriorated, and similarly to the above, the Styrofoam plates (54) are not moisture-proof, There was also a problem that a moisture-proof sheet had to be separately laid on the floor surface.

In addition to the above, an asphalt layer having an intermediate heat insulating layer is formed on the basic concrete, but there is a problem in that the construction is troublesome.

An object of the present invention is to provide a flooring material having both heat insulating property and moisture proof property, and for economically constructing a floor of a commercial refrigerator or the like in a short construction period.

[0008]

The flooring material of the present invention is provided with at least one side of a rectangular foamed resin plate having a concave portion and a convex portion capable of being fitted into the concave portion.
A moisture-proof film material is integrally bonded to the surface of the foamed resin plate.

That is, regarding the floor of a refrigerating / freezing room,
When only two floor materials are used, a concave portion is provided on one side of the floor material and a convex portion is provided on one side of the other floor material. When three floor materials are used, a concave portion is provided on one side of the intermediate floor material and a convex portion is provided on the opposite side thereof, and the floor materials on both sides are fitted into the concave and convex portions of the intermediate floor material. In order to be compatible with each other, a floor material having a concave portion on one side and a floor material having a convex portion on one side are provided.

Further, when a large number of floor materials are connected vertically and horizontally, a concave portion and a convex portion are formed on opposite sides of each floor material.

Examples of the moisture-proof film material include aluminum foil and aluminum foil laminated with a synthetic resin film.

[0012]

According to the flooring material of the present invention, since the moisture-proof film material is integrally bonded to the surface of the foamed resin plate, it is not necessary to separately lay a moisture-proofing sheet on the floor surface. Further, by providing either one of the concave portion and the convex portion capable of fitting with the concave portion on at least one side of the foamed resin plate, it is possible to connect the adjacent floor materials to each other in a close contact state without a gap.

[0013]

EXAMPLES Examples of flooring materials according to the present invention will now be described with reference to the drawings.

As shown in FIGS. 1 to 3, one of the opposite sides of the rectangular urethane foam plate (1) is provided with a recess (2) in the lengthwise direction, and the other side can be fitted with the recess (2). Na convex part (3)
Is provided, and a moisture-proof film material (4) obtained by laminating a polyethylene film (4b) on an aluminum foil (4a) is integrally bonded to the surface of the urethane foam plate (1).

The thickness of the aluminum foil (4a) and the polyethylene film (4b) are both about 30 μm.
Moreover, the dimensions of the floor material are 900 mm in width and 1800 m in length.
m, thickness 50 mm.

The floor material has a width of 1000 m.
The length may be about m, the length may be 2000 mm, and the thickness may be about 120 mm. Needless to say, it may be appropriately changed according to the application.

The moisture-proof film material (4) is made of aluminum foil (4
Although the a) is on the outside and the polyethylene film (4b) is on the inside, it is bonded to the urethane foam plate (1), but the structure may be reversed.

As the method for manufacturing the above floor material, the upper and lower flat heating platens and the surrounding frame having concave and convex surfaces for molding the concave portions (2) and convex portions (3) of the floor material are The moisture-proof film material (4) is spread on the molding surface in advance, and high-pressure foaming of polyurethane is performed by a conventional method in the space formed by the upper and lower heating platens and the surrounding frame.

Then, after removing the foamed molded product from the jig, a complete moisture-proof treatment is carried out by closing the injection hole and the gas release hole of the raw material liquid of polyurethane with an aluminum tape.

FIG. 2 shows a floor structure using the floor material of this embodiment, in which a plurality of floor materials of this embodiment have their concave portions (2) and convex portions (3) on the basic concrete (5). They are laid in a fitted state, and a mortar layer (6) is formed on these floor materials.

[0021]

According to the floor material of the present invention, since the moisture-proof film material is integrally bonded to the surface of the foamed resin plate, there is no need to separately lay a moisture-proof sheet on the floor surface.

Further, the floor material of the present invention is provided with at least one side of the foamed resin plate, the concave portion or the convex portion capable of being fitted into the concave portion, so that the adjacent floor materials are separated from each other. Can be connected in close contact with each other. Therefore, no gap is generated between the adjacent floor materials, and the deterioration of the heat insulation performance is reliably prevented.

Furthermore, by laying the flooring material of the present invention, it is possible to form a heat insulating layer having a uniform and required thickness, so that it is not necessary to carry out extra heat insulating work as in the conventional foaming in the field, and it is reinforced. The mortar layer for use also does not need to be thickly cast, so the construction period can be greatly shortened.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a flooring material of the present invention.

FIG. 2 is a vertical sectional view showing a floor structure using the flooring material of the present invention.

FIG. 3 is a plan view showing a state in which the moisture-proof film material in the flooring material of the present invention is partially cut away.

FIG. 4 is a sectional view showing a conventional floor structure.

FIG. 5 is a cross-sectional view showing another conventional floor structure.

[Explanation of symbols]

 (1) Foamed resin plate (2) Recessed part (3) Convex part (4) Moisture-proof film material

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display area E04F 15/18 A 9024-2E

Claims (1)

[Claims] 1. A rectangular foamed resin plate (1) is provided with at least one side of a concave portion (2) and a convex portion (3) capable of fitting with the concave portion (2), Foam resin board (1)
A floor material in a refrigerating / freezing room where the moisture-proof film material (4) is integrally bonded to the surface of the.