JPS6021739Y2 - insulation box body - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of a heat insulating box, and in particular, the structure of the pedestal is made strong and simple.

Conventionally, as shown in FIG. 1, when a heat insulating box such as a refrigerator or a showcase is fitted with a stand leg 2 protruding downward from the bottom wall 1 of the main body, a screw is inserted into the heat insulating material 3 on the inner surface of the bottom wall 1. A screw 5 passing through the center wall 2A of the stand leg 2 from the outside was screwed onto the reinforcing plate 4 having holes therein, thereby supporting the support.

With such a configuration, not only a through hole but also a screw hole must be formed in the reinforcing plate 4, which makes the forming work complicated, requires the screw 5, increases the number of parts, and requires a screw connection. I had a lot of work to do.

Furthermore, if the screws 5 were not properly engaged, the foamed heat insulating material 3 would leak out of the bottom wall 1, which was undesirable from an aesthetic point of view.

This was done in view of the points related to the present invention, and FIGS. 2 to 4 will be explained below.

Reference numeral 11 denotes an arbitrary insulation box body such as a refrigerator or a showcase, which is composed of an outer panel 12, an inner panel 13, and a heat insulating material 14 filled with foam between the two panels 12. It is closed by a door body 15 so as to be openable and closable.

A plurality of pedestals 16 and 17 are provided at the bottom of the main body 11 and project downward.

At least one of the pedestals 16 and 17 is a front leg 16 made of a material that is easily molded, such as resin or rubber, and is formed into a cylindrical shape with an open top and a bottom, and the periphery of the upper opening includes: A brim-like edge 16A is integrally formed that projects outwardly and is inclined so that the circumferential end is positioned slightly upward.

Further, the front leg 16 has a reinforcing piece 16B that is formed in a substantially straight line or, as in the embodiment, in a so-called cross-shaped plane, and is continuously and integrally formed therein, and extends upwardly from the upper end of the reinforcing piece 16B at a proper position, and extends in the horizontal direction. One or more claw portions 16C are formed which are bent in a so-called hook shape.

In the case of a plurality of claws 16C, they are formed to protrude from the reinforcing piece 16B so as to protrude in the same rotational direction, and the claws 16C
The front leg 16 is fitted into a through hole 19 formed opposite to the bottom wall 18 of the front leg 1 (and is engaged with the bottom wall 18 to suspend and support the front leg 16).

At this time, by fitting the claw portion 16C into the through hole 19 of the bottom wall 18 and slightly rotating the front leg 16, the claw portion 16C engages with the inner periphery of the through hole 19 of the bottom wall 18, and the front leg 16 is rotated as described above. The front leg 16 is suspended from the bottom wall 18, and a brim-like edge 16A formed at the periphery of the upper opening of the front leg 16 comes into pressure contact with the outer bottom surface of the bottom wall 18.

Therefore, the mutual dimensional relationship between the claw portion 16C and the brim-like edge 16A is set in advance, taking into consideration the thickness of the bottom wall 18 and the like.

The bottom wall 18 is provided with one or more injection holes 20, which communicate between the inside of the front leg 16 and both the inner and outer plates 13, 12, at an appropriate location closer to the center than the position of contact with the flanged edge 16A. Part 1 of the heat insulating material 14 foamed and filled between the inner and outer plates 13 and 12
4A leaks into the barrel 16 from the injection hole 20.

The through hole 19 for fitting the claw portion 16C may be formed to be large so as to serve the function of the injection hole 20, or the claw portion 16C may be inserted into the through hole 19.
The shape of can be selected as appropriate as long as it engages with the bottom wall 18.

The flanged edge 16A has a so-called trumpet-like elasticity in which the free end periphery has a so-called trumpet-like shape in which the wall thickness is gradually thinned toward the outer periphery and expanded upward so that the cross section is tapered as in the embodiment. This improves the adhesion of the bottom wall 18 to the outer bottom surface.

Since the present invention is constructed as described above, to attach the barrel to the main body, it is only necessary to engage the claw portion of the barrel with the bottom wall, and there is no need to drill a screw hole in a screw or reinforcing plate. It is possible to simplify the structure and reduce the number of work processes.

Furthermore, since the insulation material between the inner and outer plates of the front leg is leaked and filled through the injection hole, there is no need for injection work, and the insulation material can be filled even if the cylinder body is made of a low-strength material such as synthetic resin or rubber. (reinforced by), and the strength can be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of main parts showing a conventional example, Fig. 2 is a perspective view of the heat insulating box of the present invention, Fig. 3 is a sectional view taken along the line A-A in Fig. 2,
The figure is also an exploded perspective view of the main parts. 16...Cylinder body, 18...Bottom wall, 20.
...Injection hole.

Claims (1)

[Scope of utility model registration request] It is composed of an outer plate, an inner plate, and a heat insulating material filled with foam between the two plates, and a bottomed cylindrical front leg with an opening on the upper surface is provided on the bottom wall of the outer plate on the outer bottom surface of the bottom wall. Suspension support is achieved by abutting and engaging and locking the periphery of the upper end opening, and an injection hole is provided in the bottom wall to communicate between the inside of the front leg and both the inner and outer plates, and the injection hole is inserted through the injection hole. A heat insulating box body characterized in that a part of the heat insulating material is leaked and filled into the front leg.