JPH0861836A - Floor materials for refrigerators and freezers - Google Patents

Abstract

(57) [Summary] [Purpose] The flooring material has not only heat insulation but also moisture resistance and pressure resistance, and it is possible to construct a floor in a refrigerator or the like economically in a short construction period. [Structure] At least one side of a rectangular foamed resin plate 1 is provided with at least one of a concave portion 2 and a convex portion 3 that can be fitted into the concave portion 2. The upper surface of the foamed resin plate 1 has a pressure plate. 5 are integrally bonded, and the moisture-proof film material 4 is integrally bonded to the peripheral surface and the lower surface of the foamed resin plate 1.

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 business use, warehouses, laboratories, cold storages and the like.

[0002]

2. Description of the Related Art As a floor structure for a refrigerator, a freezer or the like, as shown in FIG. 4, after laying a foamed resin plate (54) which has been foam-formed in a predetermined shape on a basic concrete (51), A pressure plate (55) made of an iron plate, plywood, or the like was attached to the foamed resin plate (54) with screws, tapping screws, or the like, and caulking was performed at a necessary position.

As another floor structure, as shown in FIG. 5, a heat insulating layer (52) made of so-called foam resin is formed on the basic concrete (51) and formed on the heat insulating layer (52). The mortar layer (53) for pressure resistance was placed in the.

[0004]

Among the conventional floor structures described above, in the former case, it is difficult to firmly fix the pressure plate (55) to the foamed resin plate (54) with a screw or the like, and the screw or the like is also difficult. Moisture penetrates into the foamed resin plate (54) through the insertion holes of the foamed resin plate, and the water contained in the foamed resin plate (54) freezes as the inside of the refrigerator cools and the pressure plate (5
There is a problem that 5) rises. Further, there is a problem in that the pressure plate (55) itself is distorted and the horizontalness of the floor surface cannot be ensured.

In the latter floor structure, the thickness of the heat insulating layer (52) formed by in-situ foaming is not constant,
In general, the foaming work will be performed with the thinnest portion as a reference. Therefore, the heat insulating layer (52) tends to be formed thicker than necessary. Along with this, since the mortar layer (53) has to be cast thickly, there are disadvantages that the material cost is high and the construction period is long.
In particular, the water contained in the mortar layer (53) is difficult to escape, so that the construction period has been prolonged. In addition, a heat insulating layer (5
2) There is also the inconvenience that a moisture-proof sheet has to be laid separately on the floor because it has no moisture-proof property.

In addition to this, an asphalt layer having a heat insulating layer in the middle is formed on the basic concrete (51), but there is a problem that the construction is troublesome.

It is an object of the present invention to provide a flooring material which has moisture resistance and pressure resistance in addition to heat insulation and which is economical for constructing a floor in a refrigerator or the like in a short construction period.

[0008]

The flooring material according to 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 fitting with the concave portion, A pressure plate is integrally bonded to the upper surface of the foamed resin plate,
A moisture-proof film material is integrally bonded to the peripheral surface and the lower surface of the foamed resin plate.

That is, when only two floor materials are used for a floor of a refrigerator or the like, a concave portion is provided on one side of one 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.

The pressure plate may be a metal plate such as an aluminum plate or an iron plate.

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

[0013]

According to the floor material of the present invention, the pressure plate is integrally bonded to the upper surface of the foamed resin plate, and the moisture-proof film material is integrally bonded to the peripheral surface and the lower surface of the foamed resin plate. Therefore, in addition to the heat insulating property, the floor material itself also has moisture resistance and pressure resistance. Therefore, it is not necessary to separately lay a moisture-proof sheet on the floor surface or to pour a mortar layer for pressure resistance.

Further, since at least one side of the foamed resin plate is provided with one of the concave portion and the convex portion which can be fitted into the concave portion, adjacent floor materials can be connected to each other in a close contact state without a gap. it can.

[0015]

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

Referring to FIGS. 1 to 3, a concave portion (2) is provided in one of the opposite sides of the rectangular urethane foam plate (1) in the longitudinal direction, and a convex portion capable of fitting with the concave portion (2) is provided in the other side. (3) is provided, the aluminum plate (5) is integrally bonded as a pressure plate to the upper surface of the urethane foam plate (1), and the aluminum foil (5) is attached to the peripheral surface and the lower surface of the urethane foam plate (1). Moisture-proof membrane material with polyethylene film (4b) laminated on 4a)
(4) is integrally bonded.

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. Also, the moisture-proof film material (4) has the aluminum foil (4a) on the outside,
The polyethylene film (4b) is adhered to the urethane foam plate (1) with the inner side, but the reverse is also acceptable.

As a method for manufacturing the above floor material, an aluminum plate (5) is attached to the upper surface plate of the upper and lower flat heating surface plates, and the lower surface plate and the recesses (2 ) And the convex part (3) for molding the concave and convex peripheral frames, the moisture-proof film material (4) is spread beforehand, and the upper and lower heating platens and the peripheral frame form it. High-pressure foaming of polyurethane is carried out in a conventional space by a conventional method.

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 degassing hole of the polyurethane raw material liquid 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 a concrete foundation (6). They are laid out in a fitted state.

[0022]

According to the floor material of the present invention, the pressure plate is integrally bonded to the upper surface of the foamed resin plate, and the moisture-proof film material is integrally bonded to the peripheral surface and the lower surface of the foamed resin plate. Because
The floor material itself has heat insulation properties as well as moisture resistance and pressure resistance. Therefore, it is not necessary to separately lay a moisture-proof sheet on the floor surface or attach a pressure plate with screws or the like, and the problem of deformation of the pressure plate due to water penetration and subsequent freezing is solved. Further, by integrally adhering the pressure plate to the upper surface of the foamed resin plate, the adhesion between the foamed resin plate and the pressure plate is ensured and the horizontality of the pressure plate is also ensured. Further, it is not necessary to separately place a mortar layer for reinforcement, and the construction period can be expected to be greatly shortened.

Further, since at least one side of the foamed resin plate is provided with one of the concave portion and the convex portion which can be fitted into the concave portion, the adjacent floor materials can be connected to each other in a close contact state without a gap. it can. Therefore, it is possible to reliably prevent deterioration of the heat insulation performance due to the generation of the gap between the adjacent floor materials.

[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 vertical sectional view showing a conventional floor structure.

FIG. 5 is a vertical 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 (5) Pressure plate (6) Basic concrete

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)
The pressure plate (5) is integrally bonded to the upper surface of the
Floor material in refrigerators, freezers, etc., which has a moisture-proof film material (4) integrally bonded to the peripheral and lower surfaces of (1).