JPH02171577A - Refrigerator - Google Patents

Abstract

PURPOSE:To improve the dimensional accuracy of the casing and its rigidity by integrally fastening the ends of a partition fastening plate and the ends of a partition reinforcing plate, and integrally fastening thereto the overlapping part of the connecting part of a decorative plate and the flange. CONSTITUTION:A partition wall 4 having on its front a partition reinforcing plate 5 fastened with screws 51, 51, etc. is inserted in the partition wall inserting groove 32 in the inner casing. The inserting groove 27 of the double flange formed in the top plate 21, bottom plate 22, right side plate 23, left side plate 24 and rear plate is inserted to the flange 31 of the inner casing 3. As the end of the partition fastening plate 29 intrudes through an opening 34 into the inner casing 3 to be overlapped with the connecting part 52 of the partition reinforcing plate 5, the right side plate 23 and the left side plate 24 can be integrally fastened to the outer sides of the inner casing by tightening screws, etc. 7 in screw holes 291, 521. A decorative plate 6 is fitted with screws, etc. to the front of the patition reinforcing plate 5 with a heat insulating material inbetween to prevent the condensation. Foam heat insulating material is then filled and foamed in the space between the inner casing 3 and the outer casing 2.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a refrigerator having a structure in which a heat insulating material is filled between an outer box and an inner box. This invention relates to the structure of a box consisting of an outer box and an inner box, which are designed to improve accuracy and strengthen rigidity.

(Prior art) Conventionally, this type of refrigerator box body was made by fitting an inner box made of synthetic resin to an outer box made of steel plate, and filling the gap between the outer box and the inner box with a heat insulating material. It has a structure.

This outer box is formed into a box shape with an opening in the front by a top plate, a bottom plate, a right side plate, a left side plate, and a back plate. Two flange sections are formed, and the inner box is formed into a box shape with an opening on the front surface, and a single strip protruding outward along the opening surface is provided at the periphery of the opening. A flange portion is formed. The inner box is fitted into the outer box by inserting the flange formed on the inner box between the two flange sections formed on the outer box.

By the way, as a recent trend, the thickness of the steel plate that forms the outer box is becoming thinner and thinner, and the inner box, which is formed into a predetermined shape by vacuum forming synthetic resin plates, is also becoming thinner. . Furthermore, the density of the heat insulating material filled between the outer box and the inner box is also reduced.

(Problem to be solved by the invention) As described above, recent refrigerators are becoming lighter overall, and it has become extremely difficult to ensure and maintain the rigidity of the refrigerator box. ing. Also,
When a door body is attached to the opening of such a box body, the box body is distorted by the load, making it impossible to open and close the door body smoothly, and the appearance of the box body itself becomes unsightly.

In addition, to assemble the box before filling the insulation material, the flange formed on the inner box is simply inserted between the double flanges formed on the outer box, so this box is assembled using a foaming jig. When storing refrigerators inside refrigerator boxes, the dimensions of the boxes are not constant, so if production continues for a long time, the foaming jig may become deformed, resulting in a decrease in the quality of the refrigerator box. .

Incidentally, in recent years, there has been an increase in demand for refrigerators that can be opened to the right or left depending on the installation location in general households, so refrigerators with a left-right opening mechanism have been commercialized. Along with this, it has become increasingly important to improve dimensional accuracy, improve completeness, and strengthen rigidity required of refrigerator boxes.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a refrigerator in which the dimensional accuracy of the box consisting of the outer box and the inner box is improved and the rigidity is strengthened when filling the insulation material. There is a particular thing.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides an upper surface plate, a lower surface plate,
An outer box having an opening in the front is formed by the right side plate, the left side plate, and the back plate, and at the periphery of the opening of the outer box,
Two flange sections are formed that protrude inwardly along the opening surface, while a single flange section that protrudes outwardly along the opening surface is formed at the opening periphery of the inner box having an opening on the front surface. The inner box is fitted into the outer box by inserting the flange formed on the inner box between the two flange sections formed on the outer box, and the inner box is formed by the outer box and the inner box. A box body with a structure in which a heat insulating material is filled in the gap between the two spaces, a partition wall that vertically divides the internal space of the box body to form a plurality of storage chambers, and a box body that is attached to the front surface of the partition wall. In a refrigerator equipped with a partition reinforcing plate and a decorative plate attached to the front side of the partition reinforcing plate, a rear flange of two flange portions formed on the front edge of the right side plate and the left side plate. The part is supported by an elongated flange reinforcing plate having a substantially L-shaped cross section, one side of which is fixed to the right side plate and the left side plate, and at a position of the flange reinforcing plate corresponding to the partition wall, A partition fixing plate whose leading end penetrates the side plate portion of the inner box and projects inside the box body is attached, and both ends of the partition fixing plate and both ends of the partition reinforcing plate are integrally connected by screws or the like. While being fixed, a connecting portion is formed at one end or both ends of the decorative board, and the overlapping portion of this connecting portion and the two flange portions formed on the right side plate and the left side plate are integrally connected by screws or the like. It is fixed.

(Function) The outer box is formed into a box shape with an opening on the front by the top plate, the bottom plate, the right side plate, the left side plate, and the back plate. Two protruding flange portions are formed. Further, the rear flange portion of the two flange portions formed on the front edges of the right side plate and the left side plate has a substantially L-shaped cross section with one side piece fixed to the right side plate and the left side plate. The flange reinforcing plate is supported by a long flange reinforcing plate, and a partition fixing plate is attached to the flange reinforcing plate at a position corresponding to the partition wall.

Further, the inner box is formed in a box shape having an opening on the front surface, and a single flange portion protruding outward along the opening surface is formed at the periphery of the opening.

In addition, a partition wall is provided to vertically divide the internal space of the inner box to form a plurality of storage chambers, and a partition reinforcing plate is attached to the front surface of this partition wall. A decorative board is attached to the.

By inserting the flange portion formed on the inner box between the two flange portions formed on the outer box, the tip of the partition fixing plate provided at the appropriate location on the flange reinforcing plate can be attached to the side plate of the inner box. The screw holes provided at the tip of this protruding partition fixing plate and both ends of the partition reinforcing plate attached to the front surface of the partition wall are aligned, and the screw holes are inserted into the inner box. By screwing screws or the like into the holes, the outer box and the partition wall are integrally fixed via the flange reinforcing plate, the partition fixing plate, and the partition reinforcing plate. After this, a decorative board is attached to the front surface of the partition reinforcing board with screws, etc., and the connecting part formed at one end or both ends of this decorative board and the two flange parts formed on the right side plate and the left side plate are overlapped. At the same time, by aligning the screw holes provided in the connection part of the decorative board and the overlapping part of the two flange parts, and screwing a screw etc. into the screw hole, the connection part of the decorative board and the partition reinforcing plate can be To integrally fix an outer box and a partition wall.

That is, the outer box and the partition wall are integrally fixed via the flange reinforcing plate, the partition fixing plate, and the partition reinforcing plate, and
It is also fixed integrally through the decorative board and the partition reinforcing plate, and is firmly fixed by the interaction of these. In other words, since each member for attaching the partition wall is fixed to the outer box, even if the screw-fitting part between the partition reinforcing plate and the outer box becomes loose, the screw-fitting between the decorative board and the outer box will not work. If it is strong, the overall fixation between the partition wall and the outer box can be maintained in a sufficiently good condition.

In addition, by carefully considering the formation positions of each screw hole provided at the tip of the partition fixing plate and both ends of the partition reinforcing plate,
By simply fixing the partition fixing plate and the partition reinforcing plate with screws, the right side plate and left side plate forming the outer box can be positioned. That is, the left and right width dimensions of the box can be equally distributed with respect to the center line of the box, and the gap between the outer box and the inner box can also be set uniformly.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is an exploded perspective view showing each member constituting the refrigerator box according to the present invention, Fig. 2 is a partial perspective view showing the state in which the partition wall is attached, and Fig. 3 is an overall perspective view in the assembled state. FIG. 4 shows a sectional view taken along the line IV--IV in FIG. 3, respectively.

In the same figure, 1 is a box body of a refrigerator, and this box body 1
are the top plate 21, the bottom plate 22 (see Figure 3), and the right side plate 2.
3. It is equipped with an outer box 2 having an opening on the front, which is composed of a left side plate 24 and a back plate (not shown), etc., and an inner box 3, which is integrally molded of synthetic resin or the like and also has an opening on the front. and a partition wall 4 for vertically dividing the internal space of the inner box 3 to form a plurality of storage chambers;
A partition reinforcing plate 5 attached to the front side of the partition wall 4;
A decorative board 6 (
(see Figure 2). In this embodiment, a heat insulating material 9 is provided between the partition reinforcing board 5 and the decorative board 6 to prevent dew.
(See Figure 2).

At the periphery of the front opening of the outer box 2, which is constituted by the top plate 21, the bottom plate 22, the right side plate 23, the left side plate 24, and the back plate, there are two flange portions 261 that protrude inwardly along the opening surface. , 262 are formed. In addition, the right side plate 23
An inward, substantially horizontal upper flange 263 and a lower flange 264 are formed on the upper and lower edges of the left side plate 24, and on the rear edge, for engaging the left and right side edges of the back plate, respectively. A rear flange 265 is formed.

Further, the double flange portions 261 and 262 are formed, for example, by bending the respective tip edges of the top plate 21, bottom plate 22, right side plate 23, and left side plate 24 that constitute the outer box 2. That is, as shown in FIG. 4, the tip edge is bent inward along the opening surface, folded back to form the front side flange portion 261, and the tip is bent backward along each plate surface. A rear flange portion 262 is formed by extending and standing inward, and the cross section as a whole has a substantially U-shape. That is, the fitting groove 27 is formed by the front side flange portion 261 and the rear side flange portion 262.

The rear flange portion 262 formed on the right side plate 23 and the left side plate 24 has an elongated shape with a substantially L-shaped cross section, one side of which is fixed to the right side plate 23 and the left side plate 24 with screws or the like. It is supported by a flange reinforcing plate 28. This flange reinforcing plate 28 is formed over substantially the entire length of the right side plate 23 and left side plate 24 in the height direction. A plurality of partition fixing plates 29 (provided in two places, upper and lower in this embodiment) projecting inward are fixed to appropriate positions (described later) of this flange reinforcing plate 28 by screws or the like. . This partition fixing plate 29 is formed with a screw hole 291 for inserting a screw or the like, and the position of the screw hole 291 is a certain distance (l, ). When the right side plate 23 and the left side plate 24 are attached to the inner box 3 via the partition fixing plate 29, the right side plate 23 and the left side plate 24 move in the width direction from the center line L of the box (see Fig. 3). It is distributed evenly.

The inner box 3 has a flange portion 31 formed at the periphery of the opening thereof and protruding outward along the opening surface. As shown in FIG. 4, the flange portion 31 is bent into a substantially U-shaped cross section with an open front side. In addition, the inner box 3 is formed with partition wall insertion grooves 32 in its upper part for inserting and supporting the peripheral edges of the partition wall 4 on three sides excluding the front surface, and in its lower part, a partition wall insertion groove 32 is formed for inserting and supporting the peripheral edges of the partition wall 4 on three sides excluding the front surface. Partition wall fitting portions 33 are formed for fitting and supporting both left and right sides of the partition wall.

An opening 3 for inserting the tip of the partition fixing plate 29 attached to the right side plate 23 and left side plate 24 into the front end of the partition wall insertion groove 32 and the partition wall fitting part 33.
4 is formed.

The front surface of the partition wall 4 is provided for the purpose of positioning the right side plate 23 and left side plate 24 that constitute the outer box 2 (that is, determining the width of the box body 1), preventing deformation of the box body 1, and strengthening the rigidity. A partition reinforcing plate 5 and a decorative plate 6 are attached with screws or the like 51.

Connecting portions 52 for connecting to the partition fixing plate 29 with screws or the like are formed at both left and right ends of the partition reinforcing plate 5, and screw holes 521 are formed at appropriate locations in the connecting portions 52. The position where this screw hole 521 is formed is set so that when the partition wall 4 is attached to the inner box 3, it is at a position equal to the distance (βl) in the width direction from the center line of the inner box 3, that is, the box body 1. (See Figure 4). Then, by overlapping the partition fixing plate 29 on the connecting part 52 of the partition reinforcing plate 5, the screw holes 291 formed in the partition fixing plate 29 and the screw holes 521 formed in the connecting part 52 are made to match, By screwing these screw holes 291 and 521 with screws 7, the dimension between the right side plate 23 and the left side plate 24 is reduced to the size of the box body 1.
Required width dimension it (=2x (l+ +J,))
Set it so that

That is, the screw hole 291 of the partition fixing plate 29 and the connecting portion 5
By accurately determining the formation positions of the screw holes 521 of No. 2 as described above, by simply attaching the right side plate 23 and the left side plate 24 to the inner box 3 via the partition fixing plate 29 and the partition reinforcing plate 5, the left and right The side plates 24 and 23 can be distributed evenly in the width direction from the center line, and the necessary width dimension (12) for the box body 1 can be determined at the same time.

Connecting portions 62 are formed at both left and right ends of the decorative board 6 to connect with the front flange portions 261 formed on the right side plate 23 and left side plate 24 by screws or the like,
A screw hole 621 is formed at a suitable location in this connecting portion 62. In addition, the front side flange portion 2 corresponding to this connecting portion 62
61 also has a screw hole 2611 formed therein.

Next, a procedure for assembling the refrigerator having the above configuration will be explained.

First, the partition wall 4 to which the partition reinforcing plate 5 is attached to the front surface with screws 51, 51 is inserted into the partition wall insertion groove 32 of the inner box 3. After this, the insertion groove 27 formed by the double flange portion formed on the top plate 21, the bottom plate 22, the right side plate 23, the left side plate 24, and the back plate is inserted into the flange portion 31 formed at the front opening of the inner box 3. By doing so, the outer box 2 is formed to enclose the inner box 3. At this time, the tip of the partition fixing plate 29 attached to the right side plate 23 and the left side plate 24 passes through the opening 34 formed in the partition wall insertion groove 32 and the partition wall fitting part 33 of the inner box 3, and passes through the inner box 3. 3 and is located so as to overlap the connecting part 52 of the partition reinforcing plate 5 attached to the front surface of the partition wall 4, so that the screw hole 291 formed in this partition fixing plate 29 and the connecting part 5 A screw hole 52 formed in
1 and by screwing the screws 7 into these screw holes 291 and 521, the right side plate 23 and the left side plate 24 are integrally fixed to both left and right outer sides of the inner box 3. This results in
The right side plate 23 and the left side plate 24 are arranged at a certain distance in the width direction from the center line of the box 1 <it −z2. ) while maintaining the required width dimension of box 1 12 (=2x D', +/,
)).

After this, the partition reinforcing plate 5 attached to the front of the partition wall 4
By placing a heat insulating material 9 on the front side of the
The decorative board 6 is attached with screws etc. 51.51. At this time, the connecting portions 62 formed on both the left and right ends of the decorative board 6 are fitted into the fitting grooves 27 formed on the right side plate 23 and the left side plate 24, thereby overlapping the front side flange portion 261. Screw hole 621 formed in the connecting part 62
and the screw holes 2611 formed in the overlapping part of the front side flange portion 261, and these screw holes 621.26
The decorative board 6 is fixed to the outer box 2 by screwing screws 8 to the outer case 11.

That is, the outer box 2 (here, the right side plate 23 and the left side plate 2
4) is fixed to the partition wall 4 fixed to the inner box 3 via the flange reinforcing plate 28, the partition fixing plate 29, and the partition reinforcing plate 5, and is also fixed to the partition wall via the decorative plate 6 and the partition reinforcing plate 5. 4, and the interaction between them makes the entire box l solid.

After forming the box 1 in this manner, the gap between the inner box 3 and the outer box 2 is filled with foamed heat insulating material 10 and foamed, thereby completing the manufacture of the refrigerator box.

FIG. 5 shows another embodiment of the refrigerator of the present invention.

That is, in order to improve the ease of assembling the box 1,
The connecting portion 62 formed on the decorative board 6 has only one right or left end (the right end in this embodiment), and the other end is shaped to engage the front side flange portion 261 of the outer box 2.

Instead, the left end portion of the partition reinforcing plate 5 is further extended and provided so as to overlap the front side flange portion 261, and this overlapping portion A is screwed with a screw or the like 91.

With this configuration, it is possible to obtain the same effect as when the connecting portions 62 are formed at both ends of the decorative board 5 and are screwed to the front side flange portions 261 of the right side vi, 23 and left side plate 24. Can be done.

(Effects of the Invention) As explained above, according to the refrigerator of the present invention, the rear flange portion of the two flange portions formed on the front edges of the right side plate and the left side plate constituting the outer box. , is supported by a long flange reinforcing plate having a substantially L-shaped cross section, one side of which is fixed to the right side plate and the left side plate, and the tip of the flange reinforcing plate is located at a position corresponding to the partition wall. A partition fixing plate is attached that penetrates the side plate portion of the inner box and protrudes into the inside of the box body, and both ends of the partition fixing plate and both ends of the partition reinforcing plate are integrally fixed with screws or the like. A connecting portion is formed at one end or both ends of the decorative board, and the overlapping portion between this connecting portion and the two flange portions formed on the right side plate and the left side plate is integrally fixed with screws or the like. In addition to ensuring sufficient strength as a box, it also maintains a good appearance without being deformed by the load caused by assembling and opening/closing the door, or by impact during packaging or transportation. .

In addition, by carefully determining the formation position of each screw hole provided at the tip of the partition fixing plate and the connection part of the partition reinforcing plate, it is possible to connect the right side plate through the partition fixing plate and the partition reinforcing plate. By simply attaching the left and right panels to the inner box, the right and left panels can be distributed evenly in the width direction from the center line of the box, and the required width of the box can be determined at the same time. The dimensional accuracy of the body can be improved.

Furthermore, the dimensional accuracy of the box body can be improved, so
Since the burden placed on the foaming jig for filling the foamed heat insulating material into the box is reduced, the foaming jig undergoes very little change over time, and the degree of completion of the box after foam filling is improved.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing each member constituting the refrigerator box according to the present invention, Fig. 2 is a partial perspective view showing the state in which the partition wall is attached, and Fig. 3 is an overall perspective view in the assembled state. 4 is a sectional view taken along the line IV--IV in FIG. 3, and FIG. 5 is a sectional view showing another embodiment of the refrigerator box of the present invention. 1...Box body 3...Inner box 5...Partition reinforcement plate 21...Top plate 23...Right side plate 31...Flange part 261...Front side flange part 2...Outside Box 4... Partition wall 6... Decorative board 22... Bottom plate 24... Left side plate 262... Rear side flange part

Claims (1)

[Claims] 1) An outer box having an opening in the front is formed by the top plate, the bottom plate, the right side plate, the left side plate, and the back plate, and the opening periphery of the outer box has a shape along the opening surface. 2 protruding inward
A strip flange portion is formed on the inner box, and a single strip flange portion protruding outward along the opening surface is formed on the opening periphery of the inner box having an opening on the front surface. The inner box was fitted into the outer box by inserting the inner box between the two flange parts formed on the outer box, and the gap formed between the outer box and the inner box was filled with a heat insulating material. A structural box body, a partition wall that vertically divides the internal space of the box body to form a plurality of storage chambers, a partition reinforcing plate attached to the front surface of the partition wall, and a partition reinforcing plate attached to the front side of the partition wall. In a refrigerator equipped with a decorative panel attached to the front side, the rear flange portion of the two flange portions formed on the front edges of the right side plate and the left side plate is attached to the right side plate and the left side plate. One side piece is supported by an elongated flange reinforcing plate having a substantially L-shaped cross section to which the cross section is fixed, and the tip thereof is placed on the side plate of the inner box at a position corresponding to the partition wall of the flange reinforcing plate. A partition fixing plate is attached that protrudes into the inside of the box through the partition fixing plate, and both ends of the partition fixing plate and both ends of the partition reinforcing plate are integrally fixed with screws or the like, while one end of the decorative plate Alternatively, a refrigerator is characterized in that connecting portions are formed at both ends, and the overlapping portions of the connecting portions and two flange portions formed on the right side plate and the left side plate are integrally fixed by screws or the like.