JPS6039947B2 - Manufacturing method of refrigerator body - Google Patents

Description

Detailed Description of the Invention The present invention relates to a refrigerator which is divided into upper and lower chambers by inserting a partition wall into the main body of the refrigerator. In the original method, a partition wall was inserted into the rails formed on the left and right side walls of the inner box to divide the inside of the main body into upper and lower chambers, but in this case, it was necessary to separate the left and right walls of the partition wall and the inner box. To provide a refrigerator main body having a structure that eliminates the need for a sealing material between partition walls and achieves strong support for partition walls.

Next, examples of the present invention will be described.

Reference numeral 1 denotes a metal outer box for the front entrance, 2 an inner box made of synthetic resin for the front exit, and support rails 3 are integrally formed on the left and right side walls at opposing positions.

The outer box 1 and the inner box 2 are combined so as to be supported by flanges IA and 2A formed on the front opening edges, respectively, to form spaces filled with heat insulating material between the upper, lower, left, right, and rear walls of both boxes. The box body 4 is constructed by the following. Reference numeral 5 denotes a partition wall, which includes a container-shaped partition member 6 with an open top □ made of synthetic resin, and a container-shaped container with an open top made of foamed heat insulating material such as styrofoam stored in the partition 6 and molded into a predetermined shape. The partitioning thermal material 7 has some elasticity. Partition cutting heat material 7
The left and right side walls 7A extend upwardly from the left and right side walls 6A of the partition member 6, and the outer dimension L of the left and right side walls of the partition member 6 is
The relationship between the outer dimension L2 of the left and right side walls of the partition heat material 7 is L2>
L, the partition heat material 7 slightly protrudes outward from the partition member 6 by about 1 to several millimeters on the left and right side walls, respectively. Further, L is equal to or slightly smaller than the internal dimension L3 of the left and right side walls of the inner box 2 above the support rail 3, making it easy to insert the partition wall 5 into the inner box 2. Reference numeral 6B denotes a portion of the bottom of the partition member 6 that is placed on the support rail 3 by engaging step portions formed across the left and right sides of the partition member 6 .

In this configuration, a box body 4 is prepared in which an outer box 1 and an inner box 2 are paper-bound with a space filled with the heat insulating material, and a partition wall 5 in which a partitioning thermal module 7 is housed in a partition member 6 is provided. prepare,
The partition wall 5 is inserted toward the rear with the engaging stepped portion 6A of the partition village 6 placed on the support rail 3.

This insertion is extremely easy if it is slightly −>L2,
Further, even if L=L2, it can be easily achieved by the slight sagging of the left and right side walls of the inner box 2 and the elasticity of the partition heat material 7. Therefore, -ZL2 is appropriate for the relationship between L2 and L3, but L2 may be slightly larger than L3 depending on the degree of elasticity of the inner box and the partitioning heat shield 7. After inserting the partition wall 5 into a predetermined position of the box body 4, remove odor from foaming during the foaming process from the box body 4 other than the part corresponding to the partition wall 5.
A stock solution of a foamable insulation material such as polyurethane is injected into the filling space of the inner box 2 and outer box 1 and foamed while the inner box 2 and the outer box 1 are in contact with predetermined locations on the outer and inner surfaces of the inner box 2 and the outer box 1.
Fill it with 4. Since the inner box 2 is subjected to a force that slightly expands inward due to the foaming pressure of the heat insulating material in this foaming process, the partition heat material 7 is slightly compressed within the range of elasticity and tightly adheres to the inner box. This compression is approximately applied to the inner box 2 on the side wall of the partition member.
The left and right side walls of the partition wall 5 can be brought into contact with almost the entire side walls of the partition member 6 and the partition heat material 7, even if there is a slight difference between the front ridge 2 and L. become. Since the strong adhesion between the partition wall 7 and the inner box 2 is maintained in this way, compared to the conventional case where sealing was achieved by pasting a long and thin sealing material on the side of the partition wall 5. No sealing material is required, reducing the number of work steps.

Furthermore, since the inner box and the partitioning heat material have a wide area of surface print, the sealing of these parts can be ensured without the need for a sealant.
This is because in the conventional case, the partition wall was inserted into the inner box after insulating material was filled between the inner box and the outer box, so if the sealing area was too thick, it would be difficult to insert the partition wall. However, the seal between the partition wall and the inner box is not strong enough, and various complex structures are required to ensure a sufficient seal. It turns out. In addition, in the present invention, the inner box and the inner box are in strong contact with each other, so the partition wall can be firmly held, and as described later, even if a cooler is supported on the partition wall or heavy objects are placed in the freezing chamber, the load will not be borne. It can be constructed to be sufficiently durable. In the refrigerator body completed by incorporating the partition wall 5 as described above, a cooler 8 is mounted inside the partition cutting teaching material 7 via a fog receiving plate, and a heat insulating material 12 is mounted on the cooler 8. By inserting the freezer compartment bottom plate 9 into recesses formed in the left and right walls of the inner box 2 so as to abut the upper surface of the heat insulating material 12, a freezer compartment 10 and a refrigerator compartment 11 are defined. A cold air passage is configured such that air cooled by a cooler 8 is circulated by a blower 13 to the freezer compartment 10 and the refrigerator compartment 11. As described above, in the present invention, the outer dimensions of the left and right side walls of the partition heating material that is a component of the partition wall are slightly larger than the outer dimensions of the left and right side walls of the partition section, and the inner dimensions of the left and right side walls of the inner box. Because they are the same or slightly smaller, it is easy to insert the partition wall, and the foaming pressure when filling the insulation space between the inner box and the outer box with the foam insulation material makes it easier to insert the partition wall between the inner box and the partitioning heat material. Strong adhesion is ensured, eliminating the need for conventional sealing materials, achieving a reliable sealing structure, and making it possible to firmly hold the partition wall to the inner box, making it possible to withstand large loads of goods in the freezer compartment. The structure will be durable enough. In addition, if the side wall of the partitioning thermal material is slightly protruded from the sidewall of the partitioning member of the partitioning wall, even when the partitioning thermal material is compressed by foaming pressure, the partitioning member and the inner box will be able to move inside. Excessive deformation of the box and damage to the partition heat material can be prevented, and the side walls of the partition wall and the inner box can be brought into close contact over a wider area.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention, FIG. 1 is a longitudinal sectional side view of a refrigerator, FIG. 2 is a front perspective view of a combination box body of an inner box and an outer box,
Figure 3 is a front perspective view of the partition wall, Figure 4 is A-A in Figure 3.
'It is an enlarged cross-sectional view. 1...Outer box, 2...Inner box, 3...
...Support rail, 4...Box body, 5...
Partition wall, 6...Partition village, 7...Partition heat material. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A box body that combines an outer box and an inner box with support rails formed on the inner surfaces of the left and right side walls with a space filled with heat insulating material between the two boxes, and a container-shaped partition member in which the partition member is placed inside the container-shaped partition member. A container-shaped partitioning heating material having left and right sidewalls extending upwardly from the sidewalls and slightly projecting outward, and having a slightly elastic foamable partitioning heating material, the outer dimensions of the left and right sidewalls of the partitioning heating material are A partition wall having dimensions equal to or slightly smaller than the inner dimensions of the left and right side walls of the inner box above the support rail is prepared, the partition member is placed on the support rail, and the partition wall is placed at a predetermined position within the box body. The inner box and the partition heat material are brought into close contact with each other by foaming pressure by filling the filling space with a foamable heat insulating material with a foaming jig in contact with the inner and outer surfaces of the box body. A method for manufacturing a refrigerator body characterized by: