JPS5842852Y2 - door body - Google Patents

Description

[Detailed description of the invention] This invention relates to the door bodies of insulated boxes such as refrigerators, and in particular, insulating walls with gaskets such as door bodies that use foamed insulating materials such as hard polyurethane foamed in-situ. It is related to.

Conventionally, an inner plate constituting a door body of a refrigerator or the like has been constructed by combining an inner flange formed on an outer plate or a frame surrounding the outer plate with a flange portion of the inner plate via a gasket attachment portion. In addition, the peripheral edge was fixed to the inner flange of the outer plate using a large number of screws, but the workability of fixing the screws was extremely poor due to the use of a large number of screws.

This proposal was made in view of the above-mentioned drawbacks, and will be explained based on an embodiment shown in the figure below. Reference numeral 1 denotes a door body that is a type of insulating wall with a gasket, and the door body has an outer panel 2 and an inner panel. Board 3 and
It consists of a gasket 4 and a foamable heat insulating material 5 filled with hard polyurethane or the like in the space between the inner and outer panels 3.2 using an in-situ foaming method.

Note that 6 is a handle. The outer panel 2 includes upper, lower, left and right side walls 2.
a, 2a, . . . and inner flanges 2b, 2b, .

The inner plate 3 has jetties 3 b , 3 b , 3 b for forming an article storage recess 3 a in the center, and outward flanges 3 c , 3 c on the top, bottom, left and right edges, and Fixing pieces 3 d , 3 d , which protrude toward the foam heat insulating material 5 side and which are opposed to each other at the upper and lower and right and left end portions, respectively,
It is integrally molded using synthetic resin injection molding.

The gasket 4 is made of a flexible material such as vinyl chloride, and forms a mounting base 4b with an auxiliary piece 4a that holds the tips of the inner flanges 2b, 2b, and a buffer chamber 4C. The bellows portion 4d and the bag-like portion 4f containing the magnet 4e are integrally molded.

When filling the foam heat insulating material 5, first, the tips of the inner flanges 2b, 2b, . Next, the inner flange 2b of the outer plate 2 is fitted with the mounting base interposed therebetween.
, 2b..., the outward flange 3 of the inner plate 3
c , 3 c . By injecting the stock solution and foaming and solidifying it, the fixing piece 3 of the inner plate 3 is
d, 3d... are embedded in the foam heat insulating material 5, and the inner plate 3 is fixed, that is, the whole is integrated, but the fixing piece 3d of the inner plate 3 is , 3 d...
....The distance A and the inner flanges 2b, 2b of the outer plate 2.
The distance B after the gasket 4 is attached to the fixing piece 3 d is such that A≧B,
3d..., and the tip of the fixing piece has a protrusion 3e in the shape of an arc or an arrowhead for easy insertion.
, 3e... are formed such that the interval C thereof satisfies C>A, and the fixing pieces 3d, 3d... are fitted while being deformed inward to form the inner flanges 2b, 2b・
. . . and the outward flanges 3 c and 3 c curved.

Furthermore, when filling the foam heat insulating material 5, the inner flanges 2b, 2b of the outer plate 2 and the mounting base 4b of the gasket 4, or the mounting base and the inner plate 3
The flexibility of the gasket 4 is used to seal the mounting base 4b so that a gap does not occur between the outward flanges 3c, 3c, etc. and the foamed heat insulating material 5 leaks. In order to function as a member, the relationship between A, B, and C is set, and the foaming jig (not shown) is used to form the inner flanges 2b, 2b, . . . of the outer panel 2. Outward flanges 3c, 3c of plate 3...
Filled in a pressed state.

As described above, the heat insulating wall with a force socket such as a refrigerator door according to the present invention has an outer plate in which a side wall and an inner flange are integrally formed, and an outward flange is formed on the periphery, and the outward flange is connected to the inner flange. an inner plate that overlaps, a gasket that includes a mounting base that holds the tips of the seven inner flange and is interposed in the overlapping portion, a foamed heat insulating material that is filled between the inner and outer plates, and the foamed foam in the inner plate. The upper and lower ends and the right and left ends of the heat insulating material side are opposed to each other, and the relationship between the relative spacing A and the spacing B after the gasket is attached to the inner flange of the outer panel is A≧B. a plurality of fixing pieces that are molded integrally with the inner plate and embedded in the foamed heat insulating material while being fitted into the gap B using elasticity;
Since the inner plate is a fixed piece integrally molded with the inner plate, it is fixed as the foamed heat insulating material foams and solidifies. This work is no longer necessary, and the seal between the inner and outer panels when filling the foam insulation material is made by carefully checking the dimensional relationship between the distance A between the opposing fixed pieces and the distance B after the gasket is attached to the inner flange of the outer panel. By setting A≧B, the workability is extremely good, as the elasticity of the fixing piece and gasket is utilized, and a separate sealing member is not required.

Furthermore, due to the above-mentioned dimensional relationship, the mutual connection between the inner and outer drawing plates and the gasket can be made strong even before foaming and filling the heat insulating material, and the sealing effect during foaming and filling is also good.

Therefore, even if the inner and outer panels and the gasket are formed separately, the connection between these three parts can be made strong, and the durability can be improved by installing a heat insulating wall with a gasket or by frequent use.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of the heat insulating wall with a gasket according to the present invention, FIG. 2 is a sectional view taken along the line I-■ in FIG. 1, and FIG. 3 is an exploded sectional view of the same. 2... Outer plate, 3... Inner plate, 4b...
...Mounting base, 4...Gasket l-13d.
...Fixed piece.

Claims (1)

[Scope of utility model registration request] an outer plate integrally formed with a side wall and an inner flange; an inner plate having an outward flange formed on its periphery and overlapped with the inner flange; and an inner plate holding the tip of the inner flange and the overlapping part. a gasket having a mounting base interposed therein; a foam heat insulating material filled between the inner and outer plates;
The top and bottom and right and left ends of the foam heat insulating material side of the inner plate are opposed to each other, and the relative spacing A and the gap B after the gasket is attached to the inner flange of the outer plate.
molded integrally with the inner plate such that the relationship is A≧B,
A heat insulating wall with a gasket, comprising a plurality of fixing pieces embedded in the foam heat insulating material while being fitted into the gap B using elasticity.