JPH06147743A - Refrigerator - Google Patents

Abstract

PURPOSE:To improve the strength of a heat insulating box body for a refrigerator and increase the improvement of workability as well as the reutilizable property of material upon dismantling an outer casing and an inner casing from heat insulating material. CONSTITUTION:The heat insulating box body of a refrigerator is constituted by a method wherein the flange 2a of an inner casing 2 is inserted into and fitted to a double flange unit 4 provided at the peripheral rim of the front opening of an outer casing, then, a reinforcing member 7 is screwed 8 to a left side plate, a right side plate and a ceiling so as to be contacted with the double flange unit 4 closely and, thereafter, the sealed box body, constituted of these members, is filled with heat insulating material 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention inserts and fits a front flange of an inner box into a double flange portion provided on a front opening peripheral edge of an outer box of a refrigerator to provide a heat insulating material between the outer box and the inner box. The present invention relates to a foam-filled heat insulating box for a refrigerator, and more particularly to a refrigerator capable of improving disassembly workability at the time of discarding after use of the refrigerator and improving reusability of materials.

[0002]

2. Description of the Related Art Conventionally, a heat insulating box for a refrigerator of this type is disclosed in, for example, Japanese Utility Model Publication No. 56-132584.
The structure is as shown in FIGS. That is, as shown in FIGS. 5 and 6, reference numeral 1 denotes a cabinet made of thin steel plates forming an outer box of a refrigerator, and a cabinet formed at the front opening peripheral edges of the left side plate 1a, the right side plate 1b, and the top plate 1c. After the inner box flange 2a is inserted and fitted into the groove 5 of the heavy flange portion 4, the heat insulating material 3 is foam-filled between the inner box 2 and the outer box 1 to form the heat insulating box body. Therefore, the strength of the box as a refrigerator is fixed by using the effect of improving the section modulus by the double flange portion 4 formed at the front opening peripheral edge and the adhesive force of the urethane foam filled as the heat insulating material 3 in the outer box cabinet 1. The inner box 2 is integrally formed to ensure strength.

[0003]

In the structure of the conventional refrigerator as described above, the foam insulating material 3 is inserted and fitted between the double flange portion 4 provided on the front opening peripheral edge of the outer box 1 and the inner box flange 2a. In addition to wrapping around to the portion 6, the foam heat insulating material 3 often leaks from the insertion fitting portion 6, so that the double flange portion 4 of the outer box 1 and the inner box flange 2a are strongly bonded. It was Therefore, when disassembling and discarding after using the refrigerator, it is difficult to separate the double flange portion 4 of the outer box 1 from the inner box flange 2a, which requires a great deal of labor, which is a neck process of dismantling work. . Furthermore, when considering the material reuse of the left side plate 1a, the right side plate 1b, the top plate 1c, and the inner case 2 which form the cabinet of the outer case 1, the above-mentioned separation reuse is performed when the adhesive strength of the foam insulation 3 is strong. There is also a problem that it is difficult to reuse the material because the foamed heat insulating material 3 remains on the surface of the material. As a countermeasure against this, a silicon-based surface release material 9 or a plastic film 9
Or the like, the inner surfaces of the left side plate 1a, the right side plate 1b, the top plate 1c, and the rear plate 1d of the outer box 1 in contact with the foamed heat insulating material 3, or
A method has also been considered in which the foam heat insulating material 3 is easily peeled off by installing it inside the inner box 2. However, according to the above method, there is a problem that the adhesive strength between the cabinet of the outer box 1 and the inner box 2 is remarkably reduced, and the box strength as a refrigerator cannot be satisfied.

In view of the above problems, the present invention makes it possible to easily disassemble the foam heat insulating material 3, the cabinet of the outer box 1 and the inner box 2 while satisfying the strength of the box as a refrigerator, and further after disassembling. An object of the present invention is to provide a refrigerator capable of improving reusability of materials.

[0005]

In order to achieve the above object, the refrigerator according to the present invention has an outer case 1 formed of a thin steel plate.
In addition to the configuration in which the inner box flange 2a is inserted and fitted into the groove 5 of the double flange portion 4 installed on the front opening peripheral edge of the cabinet, the double flange portion 4 and further the front edge of the inner box flange 2a. A reinforcing member 7 formed of a steel plate or a plastic material and formed in close contact with the inner surface is fixed to the cabinet of the outer box 1 with screws 8 so that it can be removed even after the heat insulating material 3 is filled.

[0006]

According to the present invention, the reinforcing member 7 is directly fixed to the double flange portion 4 provided on the peripheral edge of the front opening of the cabinet of the outer box 1 according to the above-mentioned structure, thereby significantly improving the strength of the box body. It becomes possible. Therefore, the surface peeling material 9 or the plastic film 9 which is considered as one of means for improving the peeling property between the cabinet of the outer box 1 and the inner box 2 from the foam heat insulating material 3 is brought into contact with the foam heat insulating material 3. Even if a method is adopted in which the foam insulating material 3 is installed in a portion where the adhesive strength is reduced to improve the reusability of the material, it is possible to maintain the box strength as a refrigerator. Further, since the reinforcing member 7 is in close contact with the double flange portion 4 of the outer box 1 and the inner surface of the front edge of the inner box flange 2a, the double flange portion 4 and the insert fitting portion 6 of the inner box flange 2a are inserted. The foam insulation 3 can be prevented from wrapping around, and when the refrigerator is used for disassembly and disposal, the outer box 1
The double flange portion 4 and the inner box flange 2a can be easily separated, and the dismantling workability can be dramatically improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A refrigerator according to an embodiment of the present invention will be described below with reference to FIGS. 1 is a front perspective view of a refrigerator according to the present invention, FIG. 2 is a schematic cross-sectional view of a refrigerator according to an embodiment, FIG. 3 is an assembled view of a refrigerator according to an embodiment of FIG. 1, and FIG. It is a disassembly work drawing of the refrigerator of FIG. In the figure,
1 is an outer box of the refrigerator, a left side plate of 1a, a right side plate of 11b, 1
It is composed of a thin steel plate consisting of a top plate of c and a rear plate of 1d.

After inserting and fitting the inner box flange 2a of the inner box 2 into the double flange section 4 provided on the front opening peripheral edge of the outer box 1, the reinforcing member 7 is attached so as to be in close contact with the double flange section 4.
Is fixed to the left side plate of 1a, the right side plate of 1b, and the top plate of 1c with screws 8, and the sealed box body constituted by these is filled with the heat insulating material 3 to form a heat insulated box body. is there.

Here, the reinforcing member 7 can be provided on the entire peripheral edge of the front opening of the outer box 1 so that the strength as the heat insulating box of the refrigerator can be secured. Since the left side plate 1a, the right side plate 1b of the outer box 1 and the double flange portion 4 of the top plate 1c are fixed so as to be in close contact with each other, the invasion of the heat insulating material 3 is stopped by the end portion 7b of the reinforcing member 7 and doubled. It is possible to prevent the heat insulating material 3 from entering the groove 5 of the flange portion 4. Further, the end portion 7a of the reinforcing member 7 can also be brought into close contact with the inner box flange 2a of the inner box 2,
It is possible to prevent the heat insulating material 3 from entering the groove 5 of the double flange portion 4.

From the above, it is possible to completely prevent the foamed heat insulating material 3 from wrapping around the insertion fitting portion 6 of the double flange portion 4 and the inner box flange 2a, and when disassembling and discarding after using the refrigerator, Double flange part 4 of box 1 and inner box flange 2
It is possible to easily separate a.

Here, the assembling method of the present invention will be explained with reference to FIG. 3, in which the left side plate 1a, the right side plate 1b of the outer box 1 and the double flange portion 4 provided on the front opening periphery of the top plate 1c. After inserting and fitting the inner case flange 2a, the reinforcing member 7 is assembled from the inside of the fitting portion 6, and the left side plate 1 of the outer case 1 is fixed with the screw 8.
a, the right side plate 1b, and the top plate 1c are fixed. Then, the rear plate 1d is assembled and the outer shell of the box body is formed. The closed space formed between the outer shell and the inner box 2 is foam-filled with the heat insulating material 3 to form a heat insulating box body.

Next, referring to FIG. 4, the method of disassembling the refrigerator according to the present invention after use will be described. Reinforcing members attached to the left side plate 1a, the right side plate 1b and the top plate 1c of the outer box 1 made of a thin iron plate. 7 Inner box flange inserted into and fitted to the double flange portion 4 provided on the left side plate 1a, the right side plate 1b, and the top plate 1c of the outer box 1 after removing the screws 8 for fixing By pulling out 2a, the left side plate 1a, the right side plate 1b, the top plate 1c, the rear plate 1d, the inner box 2 and the heat insulating material 3 can be separated. Here, on the inner surfaces of the left side plate 1a, the right side plate 1b, the rear plate 1d, and the top plate 1c of the outer box 1 to which the foamed heat insulating material 3 is adhered, or on the inner side of the inner box 2, a silicon-based surface release material 9 or plastic. When the film 9 or the like is installed and foaming and filling work is performed, in addition to further improving the peeling workability during the above-described disassembling work, it becomes possible to enhance the reusability of the material after the disassembling.

[0013]

According to the present invention, the left side plate 1a of the outer box 1,
The reinforcing member 7 is provided with the screw 8 so as to be in close contact with the double flange portion 4 provided at the front opening peripheral portion of the right side plate 1b and the top plate 1c.
Since it is fixed, the strength as a heat insulating box of the refrigerator is secured, and it is possible to completely prevent the foamed heat insulating material 3 from going around the insertion fitting portion 6 of the double flange portion 4 and the inner box flange 2a. When disassembling and discarding after using the refrigerator, the outer box 1
It is possible to easily separate the double flange portion 4 and the inner box flange 2a. Further, the left side plate 1a, the right side plate 1b, the rear plate 1d and the top plate 1 of the outer box 1 to which the foamed heat insulating material 3 is adhered.
A method for improving the peeling workability at the time of disassembling work is also adopted, such as installing a silicone-based surface peeling material 9 or a plastic film 9 on the inner surface of c or the inner box 2 to perform foam filling work. Therefore, it is possible to provide a refrigerator having improved reusability of materials after disassembly.

[Brief description of drawings]

FIG. 1 is a front perspective view of a refrigerator heat insulating box according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG. 1 according to an embodiment of the present invention.

FIG. 3 is an assembly diagram of FIG. 1 showing an embodiment of the present invention.

FIG. 4 is a disassembly work diagram of FIG. 1 according to an embodiment of the present invention.

FIG. 5 is a front perspective view of a conventional refrigerator.

6 is a schematic cross-sectional view of a conventional refrigerator taken along the line BB of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer box, 1a ... Left side board, 1b ... Right side board, 1c ... Top board, 1d ... Rear board, 2 ... Inner box, 2a ... Inner box flange, 3 ... Insulating material, 4 ... Double flange part, 5 ... Grooves, 6 ... Insertion fitting portion, 7 ... Reinforcing member, 7a ... Reinforcing member end portion, 7b ... Reinforcing member end portion, 8 ... Screw, 9 ... Silicon-based surface release material or plastic film.

Claims (4)

[Claims] 1. A refrigerator box body comprising an outer box and an inner box, wherein a cavity between the boxes is filled with a heat insulating material, and fitted in a double flange portion provided at a front opening peripheral edge of the outer box. A refrigerator characterized in that a reinforcing member for tightly adhering is attached to an outer box. 2. The refrigerator according to claim 1, wherein a reinforcing member which is fitted and closely fitted to the double flange portion is attached so as to be tightly fitted also to a front opening peripheral edge portion of the inner box. 3. The refrigerator according to claim 1, further comprising a release material such as a plastic film provided on the side of the heat insulating material such as a side plate, a rear plate, and a top plate forming the outer box. 4. The refrigerator according to claim 1, wherein a release material such as a plastic film is provided on the heat insulating material contact side of the inner box.