JPH04222378A - Box body for refrigerator - Google Patents

Abstract

PURPOSE:To obtain a box body structure, inexpensive and having high strength, by a method wherein the box body is provided with a partitioning plate, engaged with a front flange and partitioning the opening of an inner box, an outer box reinforcing plate, attached to a rear flange, and a flange reinforcing plate, supporting the partitioning plate fixed to the outer box reinforcing plate and a door. CONSTITUTION:A partitioning plate 9 and a hinge reinforcing plate 18, reinforcing a hinge 10 retaining a door and having a horizontal U-shape section, are welded to the front surface of an outer box reinforcing plate 4, reinforcing an outer box 1 and having an L-shape section. Adhesive agent 21 is applied on the front surface of the outer box reinforcing plate 4 to fix the rear surface of a rear flange 3 at the rear side of a front surface flange 2 made by bending the opening rim of the outer box 1 inwardly. An inner box is inserted into the outer box 1, the partitioning plate 9 is inserted into the rear side of the front surface flange 2, the hole 12 of the partitioning plate 9 and the hole 14 of the flange 2 are fixed through a screw 15, the hole 20 of the hinge reinforcing plate 18, the hole 13 of the partitioning plate 9 and the hole 14 of the hinge 10 are aligned to clamp through another screw 16 while pinching a spacer 11. According to this method, the number of components is reduced and a box body, excellent in workability and strong in strength, can be obtained.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box structure for a refrigerator, and more particularly to a refrigerator that has a reinforced box structure and is easy to work with and can be provided at a low cost.

0002

[Prior Art] FIG. 26 shows, for example, Japanese Patent Laid-Open No. 63-23118.
6 is a diagram showing the box structure of a conventional refrigerator shown in Publication No. 6, and in the diagram, 101 is an outer box made of a steel plate; 102 is an outer box made of a steel plate;
103 is a front flange formed by folding the opening edge of the outer box 101 inward; 103 is a rear flange continuous from the front flange 102 and formed on the back side of the front flange 102;
3 is a reinforcing plate for reinforcing the outer box 101, 109 is a partition plate, 110 is a hinge, and 124 is a reinforcing plate for reinforcing the hinge 110.

Next, the operation will be explained. The front flange 102 is continuous from the front flange 102 formed by folding the opening edge of the front surface of the outer box 101 made of a steel plate inward.
Partition plate 10 of rear flange 103 formed on the back side of
A reinforcing plate 123 for reinforcing the outer box 101 and the inner partition plate 109 is attached by welding to the place where the outer box 9 is attached. Next, a reinforcing plate 124 for reinforcing the hinge 110 is tightened to the reinforcing plate 123 using screws 125, and the partition plate 109 is attached to the outer box 101. Next, the hinge 110
With the partition plate 109 sandwiched between the hole 114 provided in the hinge reinforcing plate 124 and the hole 126 provided in the hinge reinforcing plate 124, it is attached to the outer box 101 by tightening with set screws 116.

0004

[Problems to be Solved by the Invention] Since the box structure of the conventional refrigerator is constructed as described above, the partition plate 109
The plate 124 reinforcing the hinge 110 is simply attached to the reinforcing plate 123 reinforcing the small outer box attached to the rear flange surface of the outer box 101 made of a thin steel plate.
There is insufficient reinforcement, and since a plate reinforcing the outer box 1 and a plate 124 reinforcing the hinge are attached to each inner partition plate 109, the number of inner partition plates 109 increases when the refrigerator has a large number of doors. A plate 123 that reinforces the outer box 101
Also, the number of plates 124 for reinforcing the hinges has increased, and since these plates are composed of two parts, there are problems such as extra labor required for installation work.

[0005] This invention was made to solve the above-mentioned problems, and it is inexpensive and increases the strength of the box without requiring separate reinforcing plates for reinforcing the hinge and reinforcing plates for reinforcing the outer box. The purpose is to obtain a strong refrigerator box structure.

[0006]

[Means for solving the problem] Claim 1 of this invention
The box body of the refrigerator consists of an outer box having a front flange formed by folding the front opening edge inward and a rear flange formed on the back side of the front flange, and an inner box provided inside the outer box. a partition plate that engages with the front flange and defines a frontage of the inner box; an outer box reinforcing plate that is attached to the rear flange and reinforces the outer box; and an outer box reinforcing plate that is fixed to the outer box reinforcing plate. , a hinge reinforcing plate for reinforcing a hinge supporting the partition plate and the door, and a heat insulating material filled in a space between the outer box and the inner box.

[0007] The refrigerator box according to claim 2 of the present invention includes an outer box having a front flange formed by folding the front opening edge inward, and a rear flange formed on the back side of the front flange; an inner box provided inside the outer box; a partition plate that engages with the front flange to define a frontage of the inner box and has a bent portion at an end;
The device includes a reinforcing plate attached to the bent portion of the partition plate, and a heat insulating material filled in the space between the outer box and the inner box.

[0008] In the refrigerator box according to claim 3 of the present invention, in the refrigerator box according to claim 2, the reinforcing plate is located at a constant distance from the outer box and the inner box, and the reinforcing plate is located in the heat insulating material. Buried.

A refrigerator box according to a fourth aspect of the present invention is the refrigerator box according to the second aspect, in which an inclined portion is provided at the bent portion of the partition plate.

0010

[Operation] The refrigerator box according to claim 1 of the present invention has the following features:
The hinge reinforcing plate is integrated with the outer box reinforcing plate, reducing the number of parts and creating a strong box with good workability.

In the refrigerator box according to the second aspect of the present invention, the partition plate and the reinforcing plate attached to the bent portion of the partition plate maintain the right angle of the box.

[0012] In the refrigerator box according to claim 3 of the present invention, the reinforcing plate is embedded in the heat insulating material to form a sandwich structure, thereby reducing the number of parts, making it possible to obtain a box that is inexpensive and easy to assemble.

[0013] In the refrigerator box according to claim 4 of the present invention, the inclined part of the folded part of the partition plate serves as a guide during assembly, and is easily inserted into the outer box.

[0014]

[Example] Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. Figure 1
- 5, 1 is an outer box of the refrigerator made of a steel plate, 2 is a front flange formed by folding the opening edge of the outer box 1 inward, and 3 is a rear part continuous from the front flange 2 and formed on the back side of the front flange 2. flange, 4 is an outer box reinforcing plate with a substantially L-shaped cross section that reinforces the outer box 1; 6 is the bottom of the outer box 1; 8 is a hole provided in the front flange 2 for fixing the partition plate 9; 9 is a steel plate. 10 is a hinge that holds the door, 1
1 is a spacer to be inserted between the inner partition plate 9 and the hinge 10; 12 is a hole provided in the inner partition plate 9 for fixing the outer box 1; 13 is a hole provided in the inner partition plate 9 for fixing the hinge 10; 14 15 is a screw that fixes the outer box 1 and the inner partition plate 9, 16 is a screw that fixes the inner partition plate 9, the hinge 10, and the spacer 11, and 23 is a refrigerator. This is the inner box. A heat insulating material (not shown) is filled between the inner box 23 and the outer box 1.

Reference numeral 18 indicates a hinge reinforcing plate having a substantially U-shaped cross section, which is attached to the reinforcing plate 4 having a substantially L-shaped cross section, which reinforces the outer box 1, and which has a substantially U-shaped cross section, and which attaches and reinforces the partition plate 9 and the hinge 10; and 19, a substantially U-shaped front cross section. Electric resistance welding is used to weld and attach the reinforcing plate 4 having a substantially L-shaped cross section to the outer box reinforcing plate 4 having a substantially L-shaped cross section, and fixing the hinge 10 to the partition plate 9 provided on the hinge reinforcing plate 18 having a substantially U-shaped cross section. Holes 21 are adhesive holes for attaching the back side of the rear flange 3 formed continuously from the front flange 2 formed on the back side of the outer case 1 made of a steel plate and the outer case reinforcing plate 4 having a substantially L-shaped cross section to reinforce the outer case. Numerals 22 are several notches provided in a rear flange 3 formed on the back side of the outer box 1 and continuing from the front flange 2.

Next, the operation will be explained. On the front surface of the outer box reinforcing plate 4 with a substantially L-shaped cross section that reinforces the outer box 1, a partition plate 9 made of a steel plate and a hinge reinforcing plate 18 with a substantially U-shaped cross section that reinforces the hinge 10 that holds the door are installed with electrical resistance. Weld and attach using welding 19. Since the outer box 1 made of a steel plate is formed using a painted steel plate whose surface has been previously painted, the outer box 1 and the reinforcing plate outer box 4, which has an approximately L-shaped cross section, are electrically resistance welded. Since installation is difficult, adhesive 21 is applied to the front surface of the outer box reinforcing plate 4, which has a substantially L-shaped cross section and is integrated with the hinge reinforcing plate 18, which has a substantially U-shaped cross section, and the opening edge of the outer box 1 made of a steel plate is applied. The back side of the rear flange 3 formed on the back side of the front flange 2 is bonded and fixed continuously from the front flange 2 formed by folding the part inward. Reinforcement plate with a substantially L-shaped cross section When fixing the outer box 4 to the outer box 1, the outer box reinforcing plate 4 with a substantially L-shaped cross section is provided with a hinge reinforcement with a substantially U-shaped cross section to reinforce the hinge 10 that holds the door. Since the plate 18 is integrated, dimensional accuracy of the mounting position to the outer box 1 is required. A cutout 2 is provided at the place where the U-shaped hinge reinforcing plate 18 comes into contact.
2 is provided, a hinge reinforcing plate 18 having a substantially U-shaped cross section is aligned with the notch 22, and an outer box reinforcing plate 4 having a substantially L-shaped cross section is attached to the outer box 1. Next, insert the inner box 17 of the refrigerator into the outer box 1 made of steel plate, insert the middle partition plate 9 made of steel plate into the back side of the front flange 2 of the outer box 1, and insert the hole 12 made in the middle partition plate 9 made of steel plate. and holes 8 provided in the front flange 2 of the front opening edge of the outer box 1, and fix the outer box 1 and the inner partition 9 with screws 15. Next, the holes 20 made in the hinge reinforcing plate 18, which has a substantially U-shaped cross section and which reinforces the middle partition plate 9 and the hinge 10, are aligned with the holes 13 made in the middle partition plate 9 and the holes 14 made in the hinge 10, and the middle partition is formed. Insert the spacer 11 between the plate 9 and the hinge 10 and tighten the screw 16 2.
I'll close my friends.

Example 2. In the above embodiment, a hinge reinforcing plate 18 having a substantially U-shaped cross section and reinforcing the partition plate 9 and the hinge 10 is electrically resistance welded to the front surface of the outer box reinforcing plate 4 having a substantially L-shaped cross section reinforcing the outer box 1. 19, but even if the hinge reinforcing plate 18 having a substantially U-shaped cross section is attached to the front back surface of the outer box reinforcing plate 4 having a substantially L-shaped cross section by electric resistance welding 19 as shown in FIG. Although the positioning accuracy is insufficient when attaching the rear flange 3 formed on the back side of the front flange 2 of the box 1, the same effect as the above embodiment is achieved in terms of improving the strength of the refrigerator box body.

Example 3. Embodiment 3 of the present invention will be described below with reference to the drawings, FIG.
In ~9, 1 is an outer box of a refrigerator made of a steel plate, 2 is a front flange formed by folding the opening edge of the outer box 1 inward, and 3 is a rear part continuous from the front flange 2 and formed on the back side of the front flange 2. 23 is a flange, an inner box made of synthetic resin, 9 is a partition plate that divides the opening of the inner box into upper and lower parts, and bent pieces 9a and 9b are formed at both ends of this partition plate 9. A pair of left and right reinforcing plates 24 and 25 extending vertically are connected to each other by fasteners 26 such as screws. A hinge 10 receives the load of a door (not shown) and is fastened and held to the partition plate 9 by fasteners 26 such as screws. 27 is a dew-proof pipe installed so as to come into contact with the inside of the front flange 2 of the outer box or the back surface of the partition plate 9. As a procedure for assembling the box constructed as described above, the dew prevention pipe 27 is placed in advance on the flange surface 23a of the inner box 23, and the partition 9 is attached. The dew-proof pipe 27 is located inside the bent pieces 9a and 9b at both ends of the partition plate 9 in the left-right direction. Further, a pair of left and right reinforcing plates 24 and 25 extending vertically are inserted from the outside of both sides of the bent pieces 9a and 9.
b is fastened at multiple locations with fasteners 26 such as screws. Further, at least two fasteners 26 are fastened at a constant pitch vertically. In addition, the rear flange of the outer box 1 is provided with notches 28 at locations corresponding to the bent pieces 9a and 9b of the inner partition plate, and the outer box 1 has the inner partition plate 9, the reinforcing plate 24, 25. The dew-proof pipe 27 is assembled by sandwiching the pre-attached inner box 23, and finally a heat insulating material 29 is injected to form the box body. Furthermore, the inner partition plate 9 not only needs to be made smaller in order to improve the design and internal volume efficiency when viewed from the front, but also has to be bent into pieces in order to arrange the dew-proof pipe 27 on the back side of the inner partition plate 9. The strength is weakened due to the notches 9a and 9b that allow the pipe to escape. Therefore, as shown in FIGS. 10 and 11, L-shaped reinforcing members 3 are provided at the corners of the bent pieces 9a and 9b.
0 makes it possible to maintain strength without unnecessarily increasing the thickness of the partition plate 9 if it is fixed by spot welding or the like.

Next, the operation will be explained. The bent pieces 9a and 9b at both ends of the partition plate 9 are connected to the pair of left and right partition plates 9 to form a frame-shaped structure, thereby maintaining the squareness of the quadrilateral and insulating it with the heat insulating material 29. By injecting it, the box can be kept highly rigid. Further, bent pieces 9a, 9b and reinforcing plates 24, 25
Since it is fastened from the outside with the fastener 26, it is possible to work from the direction where there are no parts, which not only improves work efficiency, but also tightens multiple fasteners 26 to the full upper and lower ends of the bent pieces 9a and 9b. (In the conventional model, the inner partition plate 9 and the front flange 2 are fixed from the front, so the screw heads protrude from the inner partition plate surface, so it is possible to tighten the fasteners between the doors by moving them up and down.) Therefore, the force in the rotational direction is applied to the fastener 26 against the load of the door etc.
By widening the pitch between the two, it becomes possible to receive the impact, and the rigidity becomes strong. In addition, since there are fewer joints among the parts, the effect that slight misalignment in these parts has on the rigidity of the box can be significantly improved compared to conventional products.

Example 4. Next, with reference to FIGS. 12 and 13, Embodiment 4 of the present invention
I will explain about it. The partition plate 9 separates the inner box 23 and the outer box 1.
They are positioned at a constant distance from each other and buried in the heat insulating material 29 to form a sandwich structure. Further, as shown in FIG. 13, a notch 28 is provided at a location corresponding to the bent piece 9a, and blocks 31 of a predetermined height are provided above and below the notch 28, and between the blocks 31, the reinforcing plate A thermoplastic sealing material 32 is injected and solidified across both left and right sides of the notch 24 to seal the notch 28.

Since the partition plate 9 and the reinforcing plate 24 are connected, when the reinforcing plate 24 comes into contact with the inner box 4, which is cooled from inside the refrigerator, heat is conducted and condensation occurs on the partition plate 9, or the outside If the box 1 and the reinforcing plate 24 come into contact, the outer box 1 may be damaged by dents or the like, but since the outer box 1 is embedded in the heat insulating material 29, neither of these problems occurs. In addition, a cutout 28 is provided at a location corresponding to the bent piece 9a, and a block material 31 of a predetermined height is provided above and below the cutout 28 to create a weir, and a block material 31 of a predetermined height is provided above and below the cutout 28, and the block material 31 is placed between the left and right sides of the reinforcing plate 24 to extend the front surface of the refrigerator. A thermoplastic sealing material 32 is injected from the back side of the refrigerator with the housing facing downward, and is allowed to solidify by being accumulated between the blocks 31 to reliably prevent leakage of the heat insulating material 29.

Example 5. Next, a fifth embodiment of the present invention will be described with reference to FIGS. 14 to 17. The bent portions 9a and 9b of the partition plate 9 form an inclined portion 9d. Reference numerals 33 and 34 are partitions that partition the inner box 23 and have square holes 33a and 34a. The claws 9c that lock into the square holes 33a and 34a are the inner partition plate 9.
is integrally formed.

The outer box 1 has a partition plate 9 and a reinforcing plate 2 from both sides.
4, 25, the pipe 27 is assembled by sandwiching the inner box 23 to which it has been attached in advance, and is inserted into the front flange surface 2 of the outer box 1 using the sloped portion 9d of the partition plate 9 as a guide. In addition, the square holes 3 of the inner partitions 33 and 34
Claws 9c formed integrally with the inner partition plate 9 at 3a and 34a
is inserted, the partition plate 9 is fixed, and the outer position is determined. Inwardly, the reinforcing plates 24 and 25 are bent over the piece 9a and the inner box 2.
3, and the abutting parts 24a and 25a are placed between the inner box 2
3 to determine the horizontal deviation and position. Since the present embodiment is constructed as described above, the ease of insertion during assembly is improved, and positioning in the left and right directions is also easy, so fitting of the fastening parts is easy with little variation.

Example 6. Further, in the above embodiment, the reinforcing plates 24 and 25 are bent into pieces 9a.
The abutting portions 24a, 25a of the reinforcing plates 24, 25 are placed between the inner box 23 and the inner box 23, but as shown in FIG.
The same effect as in the fifth embodiment can also be obtained by providing a block 33 between the reinforcing plates 24, 25 and the inner box 23 and bringing the reinforcing plates 24, 25 into contact with the inner box 23 as shown in FIG.

Example 7. Example 7 will be described with reference to FIGS. 18 to 21. In FIGS. 18 and 19, 34 is a reinforcing plate with a substantially L-shaped cross section that reinforces the outer box 1, and 35 is a reinforcing plate that has a substantially L-shaped cross section that reinforces the outer box 1.
A reinforcing plate having a substantially U-shaped cross section that tightens and reinforces the partition plate 9 attached to the reinforcing plate 34 having a substantially U-shaped cross section, 35a is a bottom portion of the reinforcing plate 35 having a substantially U-shaped cross section, and 35b is a substantially U-shaped cross section. A hole provided at the bottom of the reinforcing plate 35, 9e is a hole provided at the bottom of the middle partition plate 9, 9f is a hole provided at the bottom 9e of the middle partition plate 9, 36
are screws that fasten the reinforcing plate 35, which has a substantially U-shaped cross section, and the partition plate 9 together.

Next, the operation will be explained. A reinforcing plate 4 having a substantially L-shaped cross section is attached to the hinge side of the front surface of the outer box 1. Next, a reinforcing plate 34 with a substantially U-shaped cross section is attached to a plate 34 with a substantially L-shaped cross section by electrical resistance welding 19, and the same plate 35 is attached on the opposite side of the reinforcing plate 4 with a substantially L-shaped cross section that was attached earlier. Attach in the same way with adhesive 21. Next, insert the inner box 23 of the refrigerator into the outer box 1 made of a steel plate, insert the middle partition plate 9 made of a steel plate into the back side of the front flange 2 of the outer box 1, and make the hole 12 in the middle partition plate 9 made of a steel plate.
and holes 8 provided in the front flange 2 of the front opening edge of the outer box 1, and fix the outer box 1 and the inner partition plate 9 with screws 15. Next, a hole 35b provided in the bottom part 35a of a reinforcing plate 35 having a substantially U-shaped cross section to reinforce the middle partition plate 9 and the middle partition plate 9
Align the holes 9f provided in the bottom 9e of the holder and tighten the two screws 36 together.

As described above, according to the seventh embodiment, the reinforcing plates 34 and 35 for reinforcing the hinge and the partition plate 9 are attached and integrated by welding or the like along the longitudinal direction of the front flange 2 of the outer box 1. Reinforcing plates 34 and 35 are also attached to the handle side (left side) to reinforce the outer box 1 from both left and right sides, and the reinforcing plate 35 of the inner partition plate 9 and the inner partition plate 9 are attached to the bottom surface of the inner partition plate 9. By tightening them together, a strong box structure can be obtained.

Example 8. In addition, in the above embodiment 7, the inner partition reinforcing plate 35 and the inner partition plate 9 were tightened together at two places on the bottom surface 9e of the inner partition plate 9, but as shown in FIGS. 20 and 21, the bottom surface 9e of the inner partition plate 9 In addition, holes 9h and 35d are provided on the upper surface 9g side of the inner partition plate 9 and on the upper surface 35c side of the reinforcing plate 35, which has a substantially U-shaped cross section, respectively. Top part 9g screws 36 and 37 from both sides respectively
The same effect can be achieved even if the belt is tightened.

Example 9. Example 9 of this invention will be described using FIGS. 22 to 25. In the figure, 1 is an outer box, 23 is an inner box, 44 is a partition wall that divides the refrigerator into a freezer compartment 45 and a refrigerator compartment 39, and 38
4 is a partition girder that divides the frontage of the refrigerator compartment 39 and fits into the recess 40 of the inner box 23; 41 is a reinforcing plate that is close to the inner box 23 on the hinge attachment side and covers substantially the entire side surface of the inner box 23; Reinforcement plate 4
1 screws that fasten the front part and the side surface of the partition girder 38; 43 is a hole provided in the reinforcing plate 41; 47 is a partition plate located in front of the partition wall 44; 46 is approximately U-shaped in cross section; The flange 46a has a locking opening 46b, and is a partition plate that fits into the claw 38a of the partition girder 38. 48 is a hinge attached to the partition plates 46 and 47 with screws 49; 29 is an outer box 1 and an inner box 23;
A foamed heat insulating material 49 is a refrigerator door supported by a hinge 48.

A foamed heat insulating material 29 is filled and foamed between the reinforcing plate 41 and the outer box 1, and the foamed heat insulating material 29 is firmly attached to the side wall of the reinforcing plate 4.
1. Since it has a three-layer structure bonded to the outer box 1, the strength of the side wall can be significantly improved. Since the reinforcing plate 41 has a plurality of holes 43, the heat insulating material 29 can be filled between the inner boxes 23 of the reinforcing plate 41 without impeding the water flow of the foamed heat insulating material 29. As a result, the side wall on the hinge mounting surface side is reinforced, so that it is possible to obtain resistance against twisting of the box body as shown by the dashed line in FIG. 22 due to the load of the refrigerator door 49, etc. Also, the door 4 is connected via the hinge 48 and the partition plate 46.
Since the partition girder 38 supporting the load of 9 is also screwed to the reinforcing plate 41, it is possible to prevent the refrigerator door 49 from falling down due to insufficient mounting strength of the partition girder 38.

As described above, according to the ninth embodiment, the necessary box strength can be obtained by arranging the reinforcing plate 41 along the surface of the inner box 23, so that the refrigerator is simple in structure and inexpensive. This has the effect of forming a box body.

[0032]

[Effects of the Invention] The present invention provides the following effects. The refrigerator box according to claim 1 includes: an outer box having a front flange formed by folding the front opening edge inward; and a rear flange formed on the back side of the front flange; and an outer box provided inside the outer box. an inner box, a partition plate that engages with the front flange and partitions a frontage of the inner box, an outer box reinforcing plate that is attached to the rear flange and reinforces the outer box, and this outer box reinforcing plate. The structure includes a hinge reinforcing plate that is fixed to the inner box and reinforces the hinge that supports the partition plate and the door, and a heat insulating material filled in the space between the outer box and the inner box, so that the hinge reinforcing plate It is integrated with the outer box reinforcing plate, reducing the number of parts and creating a strong box with good workability.

A refrigerator box according to a second aspect of the present invention includes an outer box having a front flange formed by folding the front opening edge inward, a rear flange formed on the back side of the front flange, and an inner side of the outer box. an inner box provided in the inner box, a partition plate that engages with the front flange, partitions the frontage of the inner box, and has a bent part at the end; and a reinforcement attached to the bent part of the partition plate. Since the structure includes a board and a heat insulating material filled in the space between the outer box and the inner box, the partition board and the reinforcing board attached to the bent part of the partition board are connected to the box body. It is possible to obtain a highly rigid box that maintains squareness, has a small number of parts, is inexpensive, and is easy to assemble.

[0034] The refrigerator box according to claim 3 has a configuration in which the reinforcing plate is located at a constant distance from the outer box and the inner box and is embedded in the heat insulating material in the refrigerator box according to claim 2. Therefore, by embedding the reinforcing plate in the heat insulating material to form a sandwich structure, it is possible to obtain a box with a reduced number of parts, low cost, and excellent assemblability.

[0035] The refrigerator box according to claim 4 is the refrigerator box according to claim 2, but has a structure in which a sloped portion is provided at the folded portion of the partition plate, so that the folded portion of the partition plate is not bent during assembly. The sloping part acts as a guide, making it easy to insert into the outer box.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a refrigerator box according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of a refrigerator box according to a first embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a main part of the refrigerator box according to the first embodiment of the present invention before attachment.

FIG. 4 is an enlarged perspective view of the main parts of the refrigerator box according to the first embodiment of the present invention after being attached.

FIG. 5 is a sectional view of a main part of a refrigerator box according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a refrigerator box according to a third embodiment of the present invention.

FIG. 7 is a perspective view of a refrigerator box according to a third embodiment of the present invention.

FIG. 8: FIG. 6 of a refrigerator box according to Embodiment 3 of the present invention.
FIG. 8 is a sectional view taken along line VIII-VIII of FIG.

FIG. 9 is a diagram 6 of a refrigerator box according to a third embodiment of the present invention.
It is a sectional view taken along the line IX-IX.

FIG. 10 is a perspective view of a main part of a refrigerator box according to a third embodiment of the present invention.

FIG. 11 is a plan view of a main part of a refrigerator box according to a third embodiment of the present invention.

FIG. 12 is a sectional view of a main part of a refrigerator box according to a fourth embodiment of the present invention.

FIG. 13 is a perspective view of a main part of a refrigerator box according to a fourth embodiment of the present invention.

FIG. 14 is a perspective view of a refrigerator box according to a fifth embodiment of the present invention.

FIG. 15 is a sectional view of a main part of a refrigerator box according to a fifth embodiment of the present invention.

FIG. 16 is a plan view of a main part of a refrigerator box according to a fifth embodiment of the present invention.

FIG. 17 is a sectional view of a main part of a refrigerator box according to a fifth embodiment of the present invention.

FIG. 18 is a perspective view of a refrigerator box according to a seventh embodiment of the present invention.

FIG. 19 is a perspective view of a main part of a refrigerator box according to a seventh embodiment of the present invention.

FIG. 20 is a perspective view of a main part of a refrigerator box according to a seventh embodiment of the present invention.

FIG. 21 is a cross-sectional view of a main part of a refrigerator box according to a seventh embodiment of the present invention.

FIG. 22 is a perspective view of a refrigerator box according to a ninth embodiment of the present invention.

FIG. 23 is a perspective view of a refrigerator box according to a ninth embodiment of the present invention.

24 is a sectional view taken along the line XXIV-XXIV in FIG. 22 of a refrigerator box according to a ninth embodiment of the present invention.

25 is a sectional view of a main part of a refrigerator box according to a ninth embodiment of the present invention taken along line XXV-XXV in FIG. 22; FIG.

FIG. 26 is an exploded perspective view of a conventional refrigerator box.

[Explanation of symbols]

1 Outer box 2 Front flange 3 Rear flange 4 Outer box reinforcement plate 9 Partition board 9a, 9b bending part 9d Slope part 10 Hinge 18 Hinge reinforcement plate 23 Inner box 24, 25 Reinforcement plate 29 Insulation material

Claims (4)

[Claims] 1. An outer box having a front flange formed by folding the front opening edge inward, and a rear flange formed on the back side of the front flange, and an inner box provided inside the outer box. a partition plate that engages with the front flange and defines a frontage of the inner box; an outer box reinforcing plate that is attached to the rear flange and reinforces the outer box; and a partition plate that is fixed to the outer box reinforcing plate and that A refrigerator box body comprising: a hinge reinforcing plate for reinforcing a hinge supporting a partition plate and a door; and a heat insulating material filled in a space between the outer box and the inner box. 2. An outer box having a front flange formed by folding the front opening edge inward, and a rear flange formed on the back side of the front flange; and an inner box provided inside the outer box. an inner partition plate that engages with the front flange, defines the frontage of the inner box, and has a bent part at the end; a reinforcing plate attached to the bent part of the inner box; A refrigerator box body characterized by comprising: a heat insulating material filled in a space between the boxes. 3. The refrigerator box according to claim 2, wherein the reinforcing plate is located at a constant distance from the outer box and the inner box, and is embedded in the heat insulating material. 4. The refrigerator box according to claim 2, wherein a sloped portion is provided at a bent portion of the partition plate.