JPS6117341Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a refrigerator cabinet in which foam insulation material is injected into the gap between the outer box and the inner box, and particularly relates to improving the joint between the outer and inner boxes. .

Conventionally, in this type of fixing device, the cushioning material 11 was simply fitted into the locking groove 6 as shown in FIG. It has been difficult to control the dimensions of the locking groove 6 and the cushioning material 11 because the foamed heat insulating material may leak out from the locking groove 6 and cause damage to the refrigerator. Further, in order to solve the above-mentioned problem, dimensions were taken in which the elastic heat insulating material 11 was fixed to the tape 13, but this had the disadvantage that it required many man-hours for assembly and was very expensive.

The present invention has been devised to solve the above-mentioned drawbacks.The present invention will be explained below with reference to an illustrated embodiment.1 is an outer box 2 made of a steel plate and an ABS
This refrigerator cabinet is composed of an inner box 3 made of a plastic material such as, and a foamed heat insulating material 4 such as foamed polyurethane filled in the gap between the two boxes 2 and 3. The front opening of the outer box 2 includes a front bent edge 5 which is a bent front edge, and a rear bent edge 7 which forms a locking groove 6 with a predetermined gap from the bent edge 5.
A guide piece 8 extending further inward from the bent edge 7 toward the locking groove 6 is integrally formed. Reference numeral 11 denotes a cushioning material made of elastic styrofoam or the like, which is guided by the guide piece 8 and fitted into the locking groove 6 so as to push the rear bent edge 7 apart. The wedge-in cushioning material 11 is fixed and can prevent falling from the locking groove 6. Reference numeral 12 denotes a flange portion forming a front opening of the inner box 3, which is inserted into pressure contact between the back surface of the front bent edge 5 of the outer box 2 and the cushioning material 11, so that both 5, 1
1, the inner box 3 is clamped and fixed.

As described above, the present invention provides a guide piece that projects integrally with the rear bent edge forming the locking groove, so that the guide piece is inserted into and fixed to the cushioning material fitted into the locking groove. It is designed to prevent falling and solves the problem of conventional foam insulation material leaking and damaging the refrigerator cabinet due to slight variations in the dimensions of the locking groove and the cushioning material itself, causing the cushioning material to fall out of the locking groove. Therefore, dimension management is not necessary. In addition, when forming the bent edge that forms the locking groove, the guide piece can be integrated by roll-forming, etc., so there is no increase in cost, and the work of fixing tape to prevent the cushioning material from falling off can be omitted, and assembly To provide a refrigerator cabinet that not only reduces the number of man-hours but also has a safe and practical effect, with no fear of injury from the bent edge because the rear bent edge is bent inward.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the refrigerator cabinet according to this invention, Fig. 2 is an enlarged sectional view of the main part taken along the - line in Fig. 1, and Fig. 3 is an enlarged sectional view of the main part of the conventional refrigerator cabinet corresponding to Fig. 2. It is. Note that the same reference numerals in the figures indicate the same or corresponding parts. 2 is an outer box, 3 is an inner box, 4 is a foam insulation material, 5 is a front bent edge, 6 is a locking groove, 7 is a rear bent edge, 8 is a guide piece, 11 is a cushioning material, 12 is a flange Department.

Claims (1)

[Scope of utility model registration request] In a product in which a foamed insulation material is injected and foamed between the outer box and the inner box, a front bent edge where the front edge is overlapped and bent at the front opening of the outer box, this front bent edge. A rear bent edge forms a locking groove at a predetermined distance from the edge, and a guide piece is formed integrally with the tip of the rear bent edge by further bending it inward to the locking groove. A cabinet for a refrigerator, characterized in that a cushioning material fitted into a stop groove is fixed, and a flange portion of the inner box is inserted and pressed between the back surface of the front bent edge and the cushioning material.