JPS6325512Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a heat insulating box for a refrigerator cabinet or the like.

Conventional configuration and its problems The conventional configuration will be explained with reference to FIGS. 1 to 3. The switch storage box b in the heat insulating box a has a structure in which a plate material d bent into a substantially U-shape is attached to the inside of a box c made of soft polyethylene foam. When processing this plate material d, burrs may occur on the cut surface, and since it is a sharp edge e, there is a risk of damaging the cord g wired to the switch f, causing electrical leakage or fire. In order to protect g from damage, it was necessary to tape it or cover it with tube h. Alternatively, as shown by the two-dot chain line in FIG. 2, a notch i must be provided in the plate material d, and the cord g must be made to protrude from the notch i, which requires consideration for positioning.

The purpose of this invention is to prevent the cord from being damaged by the lining reinforcement material of the switch storage box and to eliminate the restriction of the cord pull-out area.

Structure of the invention In order to achieve this purpose, by bending the tip of the opening side of the lining reinforcing material slightly outward, the cord outlet can be set freely, and it is possible to prevent electrical leakage or short fire due to damage to the cord. It is intended to prevent

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In Figures 4 and 5, 1 is the refrigerator main body 1a.
The outer box is fitted with an inner box 3 at an opening 2 at one end thereof, and the space formed by both boxes is filled with a foamed polyurethane heat insulating material 3a. This inner box 3
A switch storage box 4 made of a soft foam material such as polyethylene foam and having heat insulating properties is fixed to the side wall of the switch box 4 using a hot melt adhesive or the like. A substantially U-shaped lining reinforcing material 5 made of hard resin such as polystyrene resin is attached to the inner wall of the switch storage box 4 with double-sided tape (not shown), and the end of the lining reinforcing material 5 on the opening side 6 is slightly bent outward, that is, toward the switch storage box 4 side. The distance x between the end 6 of the lining reinforcing material 5 and the back surface 3b of the inner box is the switch 7.
It has sufficient dimensions to pass the cord wire 8 for use.

In the above configuration, the end portion 6 of the lining reinforcing material 5 of the switch storage box 4 is slightly bent outward, and since the switch storage box 4 is made of soft polyethylene foam, the polyurethane insulation material 3a is foamed on-site. At this time, foaming pressure is applied and the end portion 6 is protruded inside the switch storage box 4 so as to cover the end portion 6, so that the wiring cord 8 inside the switch storage box 4 does not come into contact with the end portion 6. In addition, foaming pressure is applied to reduce the distance x between the end portion 6 and the back surface 3b of the inner box, but the bottom portion 5a of the reinforcing plate comes into contact with the switch 7, and at this time there is a gap sufficient to pass the cord 8 through. There is no problem as I am trying to secure it.

Effects of the invention The switch storage box of the invention can be taken out even from parts such as the switch wiring cord, so it can be used in common as it can accommodate any wiring shape. In addition, the cord is not damaged in the storage box or at the outlet, and leakage of the insulation and shot ignition can be prevented. Furthermore, there is no need for taping or tube threading, which were conventionally required as a structure for preventing damage to the cord, and the cord can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional refrigerator body, Fig. 2 is a sectional view taken along the line -' in Fig. 1, Fig. 3 is a perspective view of a conventional lining reinforcing plate, and Fig. 4 is an embodiment of the present invention. FIG. 5 is an exploded perspective view showing the switch storage box and reinforcing material. 3...Inner box, 1...Outer box, 3a...Foam insulation material, 4...Switch storage box, 5...Inner reinforcing material.

Claims (1)

[Scope of utility model registration request] An outer box, an inner box, a switch storage box made of a soft foam material such as polyethylene foam located between the two boxes and attached to the inner box side, a foam insulation material filled between both boxes, and the switch storage box. and a substantially U-shaped lining reinforcing material made of hard resin such as polystyrene resin along the inner wall of the lining, with the opening side tip portion of the lining reinforcing material slightly facing the outside of the substantially U-shape. A heat insulating box body having a switch storage box which is bent and recessed into a protruding deformation of the switch storage box toward a lining reinforcing material side due to the foaming pressure of the foamed heat insulating material.