JPH0240466Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a connection structure for a heat insulating box, and particularly relates to a novel improvement for preventing foam leakage at the corners thereof.

b. Prior Art Various configurations have been proposed and adopted as connection structures for this type of insulation box that have been used in the past. As shown in FIG. That is, FIG. 5 shows a conventionally used heat insulating box 1.
1 is a perspective view showing the overall configuration of the heat insulating box body 1.
is composed of an outer box 2 and an inner box 3, and has an opening 4 on its front side.

A space 9, which will be described later, formed between the outer box 2 and the inner box 3 is covered with a plurality of decorative plates 5 at the opening 4, and the corner 6 of the opening 4 is covered with a plurality of decorative boards 5.
is provided with an L-shaped corner cover 7.

To explain the above-mentioned structure in more detail, it is as shown in FIGS. 6 and 7, in which the upper end of the outer box 2 has a first bent part 2a bent inward, and the upper end of the inner box 3 has a second bent portion 3a which is opposite to the first bent portion 2a and is similarly bent inward.

Although not shown in the drawing, the corner portion 6 includes:
A non-connection part is formed between each decorative board 5, 5 provided so as to cover each of these bent parts 2a and 3a, and in order to connect this non-connection part, as shown in FIG. The corner cover 7 is provided at the corner cover 7.

As shown in FIG. 7, a double-sided adhesive tape 8 is provided on each of the aforementioned bent portions 2a and 3a.
It is configured to eliminate the space 9 existing between the two,
On this double-sided adhesive tape 8, the L-shaped bending plate 7 is placed.

Both sides 7a of this L-shaped bent plate 7 are bent into claw shapes, as shown in FIGS. The L-shaped bent plate 7 and the bent portions 2a and 3a are integrally fixed by mounting screws 10.

Furthermore, a heat insulating material 12 made of a foaming liquid is injected into the cavity 11 formed by the outer box 2 and the inner box 3.

c Problems to be solved by the invention Since the conventional connection structure of the insulation box is configured as described above, a large number of screws are used to connect and fix the corner cover to the outer box and the inner box. As a result, as shown in Figure 7, the external appearance deteriorated, and it was easy for germs to get into the screw holes of the mounting screws, making it extremely unhygienic for handling food such as in refrigerators. .

In addition, since the space between the first bending part and the second bending part is covered with double-sided adhesive tape, there is no path for the air pushed out by the foaming liquid to escape when the foaming liquid is injected, and the inside of the insulating box is There were problems such as unevenness in the foaming liquid and the formation of unfilled portions, making it impossible to obtain a sufficient heat insulating effect.

The purpose of this invention is to quickly solve the above problems. By using an L-shaped bent plate, the corner cover can be attached without using mounting screws, and the air can be vented when foaming liquid is injected. The purpose of this study is to obtain a new connection structure for a heat-insulating box that simultaneously achieves this goal.

d. Means for Solving the Problems The connection structure of the heat insulating structure according to the present invention includes an outer box having a first bent part bent inward to form an opening of the heat insulating box, and an outer box facing the outer box. an inner box having a second bent part provided at the center and bent to face the first bent part; a corner formed by the outer box and the inner box; and the first and second bent parts. a plurality of decorative laminates provided above, a non-connection portion formed between each of the decorative laminates at the corner, and a breathable cushion provided on the first and second bent portions in the non-connection portion. a member, and an L provided on the breathable cushion member and for covering the corner portion.
The present invention includes a bent plate, a fixing means for fixing the L-shaped bent plate to the outer box and the inner box, and a corner cover provided on the L-shaped bent plate.

e Effect In the connection structure of the heat insulating structure according to the present invention,
The air pushed out by the foaming liquid injected inside the box is led out to the outside through the breathable cushion member, so the foaming liquid inside the insulated box is evenly filled in every corner without leaving any voids. Therefore, a uniform heat insulating material can be obtained, and the required heat insulating effect can be obtained. Further, since the surface of the corner portion is covered with a corner cover having a flat surface without screw holes, the appearance is good and the adhesion of various germs and the like can be prevented as much as possible.

f. Embodiments Hereinafter, preferred embodiments of the connection structure for a heat insulating box according to the present invention will be described in detail with reference to the drawings.
Note that the same or equivalent parts as in the conventional example will be described with the same reference numerals.

1 to 4 are for showing the connection structure of the heat insulating box according to the present invention, and FIG. 4 is a perspective view showing the overall structure of the heat insulating box 1. As shown in FIG. This insulating box 1 is composed of an outer box 2 and an inner box 3, and
It has an opening 4 on its front side.

A space 9 (disclosed in FIG. 2), which will be described later, formed between the outer box 2 and the inner box 3 is covered in this opening 4 by a plurality of decorative plates 5. As shown in FIG. 3, an L-shaped corner cover 7 is provided at the corner 6 of the opening 4. As shown in FIG.

To explain the above-mentioned structure in more detail, as shown in FIGS. 1 to 3, the upper end of the outer box 2 has a first bent part 2a bent inward, and the upper end of the inner box 3 has a second bent portion 3a which is opposite to the first bent portion 2a and is similarly bent inward.

As shown in FIG. 2, in the corner portion 6, a non-connection portion 6a is formed between each decorative plate 5, 5 provided to cover each of the bent portions 2a and 3a. As shown in FIG. 1, an L-shaped bent plate 7A is provided to fill the non-connected portion 6a.

In order to eliminate the space 9 existing between the respective bends 2a and 3a, the width W of the space 9 is larger than the width W of the lower part of the L-shaped bending plate 7A provided on each of the bends 2a and 3a. Also provided is a breathable cushion member 8 made of, for example, breathable cushion tape, which has a wide width and is longer than the length of the L-shaped bending plate 7A. In this case, since a slight gap D is formed between both ends of the L-shaped bent plate 7A and each of the decorative plates 5, 5, both ends 8a of the breathable cushion member 8 are slightly directed outward. The air in the cavity 11 formed in the heat insulating box body 1 by the outer box 2 and the inner box 3 is maintained in a state in which it is slightly communicated with the outside air through this breathable cushion member 8. has been done.

Further, the L-shaped bending plate 7A is attached to each bending portion through attachment holes 10a formed in each bending portion 2a and 3a by a plurality of rivets 10 (for example, other means may be used) as fixing means. 2a and 3a.

Furthermore, the corner portion 6 configured as shown in FIG.
As shown in FIG. 3, a corner cover 7 having an approximately L shape is fitted onto the L-shaped bent plate 7A, and both sides 7a of this corner cover 7 are connected to the outer box 2 and the inner box. 3 is held in between.

Since the shape of this corner cover 7 is larger than the shape of the L-shaped bent plate 7A, the gap D between the L-shaped bent plate 7A and each decorative plate 5, 5 and the end of the breathable cushion member 8 are 8a is covered and hidden by this corner cover 7, and furthermore, since the surface of this corner cover 7 is formed in a surface state in which no holes or uneven surfaces are formed,
It is difficult for bacteria to adhere to the surface and maintains an extremely hygienic condition.

Furthermore, a heat insulating material (not shown) made of a foaming liquid is injected into the cavity 11 formed by the outer box 2 and the inner box 3, and the inside of the cavity 11 when the foaming liquid is injected. Since the air is led out through the gap D and the end 8a of the breathable cushion member 8, the foaming liquid in the gap 11 is distributed evenly and evenly, including small gaps. It is possible to obtain insulation filling without any insulation.
Furthermore, when filling the foaming liquid, air is drawn out from the end 8a of the breathable cushion member 8, but since the foaming liquid is made of a material that does not leak to the outside, it The foaming liquid does not leak to the outside through the end 8a of the breathable cushion member 8.

In this embodiment, cushion tape is used as the breathable cushion member 8, but other materials other than the above-mentioned cushion tape may be used as long as they have the required breathability characteristics. Similar effects and effects can be obtained by using

g. Effects of the invention Since the connection structure of the insulation box according to the invention has the above-mentioned configuration and function, each corner of the insulation box is It is possible to completely cover the unconnected parts between decorative panels, and only the air inside the insulation box can be led outside when the foaming liquid is injected, so the insulation material inside the insulation box can be evenly covered and small gaps can be removed. It can be filled uniformly without leaving any residue, and the desired insulation effect can be obtained.

In addition, since a corner cover is provided on the top surface of the L-shaped bent plate, the corners of the insulation box have a planar surface with no irregularities or holes, resulting in extremely hygienic insulation that does not attract germs. An opening in the box is obtained.

[Brief explanation of the drawing]

Figures 1 to 4 are for showing the connection structure of the heat insulating box body according to the present invention. Figure 1 is a perspective view of the main part, and Figure 2 is a diagram showing the L-shaped bending plate shown in Figure 1. Fig. 3 is a perspective view showing the state shown in Fig. 1 after the corner cover has been attached, and Fig. 4 shows the overall structure of the insulation box using the connection structure of the present invention. The perspective views shown in Figures 5 to 7 are for showing the connection structure of the conventional heat insulating box. Figure 5 is a perspective view showing the heat insulating box, and Figure 6 shows the main parts of Figure 5. Perspective view, Figure 7 is A-A in Figure 5
FIG. 1 is a heat insulating box body, 2 is an outer box, 3 is an inner box, 2a is a first bent part, 3a is a second bent part, 4 is an opening, 5 is a decorative board, 6 is a corner part, 6a is a non-connecting part , 7 is a corner cover, 7A is an L-shaped bending plate, 8 is a breathable cushion member, and 10 is a fixing means.

Claims (1)

[Claims for Utility Model Registration] (1) An outer box 2 having a first bent part 2a bent inward to form the opening 4 of the heat insulating box 1; First bending part 2
A second bent portion 3a bent to face a
an inner box 3 having a corner part 6 formed by the outer box 2 and the inner box 3, and a plurality of decorative plates 5 provided on the first and second bent parts 2a and 3a.
, a non-connection part 6a formed between each of the decorative plates 5 at the corner part 6, and a breathable cushion member 8 provided on the first and second bent parts 2a and 3a in the non-connection part 6a. and the corner portion 6 provided on the breathable cushion member 8.
an L-shaped bending plate 7A for covering the L-shaped bending plate 7A, a fixing means 10 for fixing the L-shaped bending plate 7A to the outer box 2 and the inner box 3, and a corner cover 7 provided on the L-shaped bending plate 7A. A connection structure for a heat insulating box consisting of a structure comprising: (2) The connection structure for a heat insulating box according to claim 1, wherein the breathable cushion member 8 is made of a breathable cushion tape. (3) The length of the breathable cushion member 8 is the length L.
Utility model registration claim 1 characterized by having a shape larger than the length of the bent plate 7A
Connection structure of the heat insulating box according to item 1 or 2.