JPS6017444Y2 - insulation panels - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating panel for prefabricated prefabricated freezers, refrigerators, hot storage cabinets, etc.

Conventionally, insulating panels such as prefabricated refrigerators that can be assembled at the installation site, the bent edge 6' at the end of the top plate 2' and the end of the reinforcing plate 4' are in contact with each other, as shown in Fig. 2. Since the backing 8' was fitted to the bent edge 6'' of the surface plate 2' covering the bent edge 6'', the backing 8' was fitted between the bent edge 6' and the reinforcement plate 4' or Adhesive strength between the bent edge 6# and the backing 8' is not sufficiently developed, and a loaded truck or the like passes over or near the joint between the insulation panels, causing the surface plate to be damaged. When a load is applied to the ends of the top plates 2' and 2'', the adhesive between the bent edges 6' and 6'' of the top plate peels off, causing the ends of the top plate to lift up.

The present invention solves the above-mentioned conventional drawbacks, and its gist is that a reinforcing plate is attached to the inner surface of at least one of the two face plates, and a polyurethane resin is bonded between the two face plates. In the heat insulating panel filled with resin foam, an inwardly bent edge is provided at the end of the surface plate, and a gap is formed between the bent edge and the end of the reinforcing plate. and the polyurethane resin foam is filled into the gap.

Next, the heat insulating panel of the present invention will be explained with reference to the drawings.

In the figure, numerals 1 and 1 are heat insulating panels for the floor of a prefabricated refrigerator that are connected to each other.

Each of these insulation panels 1, 1 has two surface plates 2, 3.
are arranged in parallel at predetermined intervals, and a reinforcing plate 4 is attached to the inner surface of the upper surface plate 2.
, 3 is filled with a polyurethane resin foam 5.

The surface plates 2 and 3 are made of stainless steel plates, vinyl chloride resin-coated steel plates, etc., and their ends are bent inward to form bent edges 6, and the inner surfaces have adhesive properties with the polyurethane resin foam 5. Primer treatment has been applied to improve the quality.

The reinforcing plate 4 is made of plywood or the like, and is attached to the inner surface of the surface plate 2 with an adhesive to reinforce the surface plate 2, and its dimensions are the same as those of the surface plate 2.
It is made slightly smaller so that a gap 7 is formed between the bent edge 6 at the end of the surface plate 2 and the end of the reinforcing plate 4.

Then, when the surface plates 2 and 3 are arranged with a predetermined distance between them, a mold material is applied to the ends, and urethane resin liquid is injected and foamed between the surface plates 2 and 3, the polyurethane resin foam 5 becomes the surface plate. 2
, 3, and also fills the gap 7 between the bent edge 6 and the end of the reinforcing plate 4, thereby firmly adhering it.

Preferably, the gap 7 ranges between 1.577EIF+ and 1oTrgn.

, because the polyurethane resin foam 5 will fully penetrate if the gap 7 is 1.5 mm or more, although it will vary depending on the viscosity and foaming power of the urethane resin to be injected, and if the gap 7 is 10
This is because if it is 71771 or less, the strength of the end portion of the heat insulating panel 1 will not be affected even if the reinforcing material 4 is not present.

8 is the backing, which is made of soft plastic or the like;
As shown in FIG. 1, it consists of a backing body 9 formed in a hollow shape and an anchor part 10, and the backing body 9 is located at the end of the heat insulation panel 1, outside the bent edge 6 of the surface plate 2.3. The anchor part 10 is made of polyurethane resin foam 5.
It is embedded and fixed inside.

Thus, the backing 8 seals the connected portion of the heat insulating panels 1, 1 by bringing the ends of the heat insulating panels 1, 1 into contact with each other.

As mentioned above, the heat insulating panel of the present invention is filled with polyurethane resin foam up to the inner surface of the bent edge at the end of the face plate, so the edge of the face plate is firmly bonded by the polyurethane resin foam. This prevents the edges of the top plate from peeling off and lifting even if a load is applied to the joints of the insulation panels.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the heat insulating panel of the present invention, and FIG. 2 is a sectional view showing an example of a conventional heat insulating panel. 1 is a heat insulating panel, 2 and 3 are surface plates, 4 is a reinforcing plate, 5 is a polyurethane resin foam, 6 is a bent edge, and 7 is a gap.

Claims (1)

[Claims for Utility Model Registration] 1. A heat insulating panel in which a reinforcing plate is attached to the inner surface of at least one of two face plates, and a polyurethane resin foam is filled between the two face plates. In this case, an edge of the surface plate is provided with an edge bent inwardly, a gap is formed between the edge of the bend and the edge of the reinforcing plate, and the polyurethane resin is applied to the edge of the surface plate. A heat insulating panel characterized by being filled with resin foam. 2 Gap is 1orrr from 1.5 diagonal! The heat insulating panel according to claim 1 of the utility model registration claim, which is within the scope of It.