JPH03177779A - Cabinet - Google Patents

Abstract

PURPOSE:To bring the front surfaces of both flanges into the same plane at the abutting part of both flanges by a method wherein the step piece of the flange is abutted against the bent-and-turning piece of a neighboring flange at the abutting part between them to preclude the rise-up of the bent-and-turned piece. CONSTITUTION:Triangular pieces 16-19 are formed on the right end of a flange 13 and the left end of another flange 12, the triangular piece 19 is bent so as to show a L-shape, the triangular piece 18 is bent and turned so as to be superposed on the rear side of the flange 12 and these bent-and-turned piece 20, step piece 21, another step piece 22 and another bent-and-turned piece 23 are formed in zigzag on the bent-down parts A, B of the bent-and-turned piece 20, the step piece 21, the step piece 22 and the bent-and-turned piece 23, which are arranged along the straight line of 45 degrees. A metal plate 15 is bent in a U-shape substantially to form a cabinet, then, the step piece 21 of the flange 13 is retained by the bent-and-turned piece 23 of the other flange 12 whereby one flange 13 is precluded from rising up from the other flange 12. According to this method, neighboring flanges may be connected in the same plane at the abutting part of them.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a cabinet in which a single metal plate is bent at a bending portion to form at least two adjacent sides.

(Prior Art) For example, in a cabinet constituting the outer box of a refrigerator, a single metal plate is bent into a substantially U-shape to form both left and right sides and the top surface.

In such a refrigerator cabinet, a flange, on which the magnetic gasket of the door abuts the front opening edge, is bent inward. In this case, as shown in FIG. 7, adjacent flanges 1 and 2 are butted against each other at a 45 degree line.

FIG. 9 shows the state before the metal plate is bent into a substantially U-shape at this abutting portion, and one flange 1 has a triangular folded piece 3 which is folded and overlapped on the back side of the flange 1. The other flange 2 has a stepped piece 4 extending rearward by an amount corresponding to the plate thickness. Then, when the metal plate is bent into a substantially U-shape, the adjacent flanges 1 and 2 are butted against each other along the above-mentioned 45-degree line, and the step piece 4 of the other flange 2 is
As shown in FIG. 8, it is brought into contact with the folded piece 3 of one flange 1 from the rear side.

(Problem to be Solved by the Invention) By the way, if the front surfaces of both flanges 1 and 2 are not flush with each other at the abutting portions, the appearance will be poor, and when the door is closed, the magnetic gasket will be damaged. Since the flanges 1 and 2 are not in close contact with each other and a gap is created, this causes cold air leakage.

In this case, for example, when the flange 2 is not bent to 90 degrees, the step piece 4 comes into contact with the folded piece 3 of the flange 1, which prevents the flange 1 from lifting up. If the folded piece 3 is not bent completely, the folded piece 3 will rise above the step piece 4, as shown by the two-dot chain line in FIG.
Both flanges 1 and 2 are no longer flush with each other at the abutting portion.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a cabinet in which the front surfaces of adjacent flanges can be reliably flush with each other at the abutting portions.

[Structure of the Invention] (Means for Solving the Problems of the Invention) The cabinet of the present invention has at least two adjacent sides formed by bending a single metal plate. A flange formed by folding west is provided, and a flange is formed adjacent to the end of one of the flanges on the two sides along the part that butts against the end of the other flange, and on the back side of the one flange. A folded piece bent in an overlapping state and a stepped piece extending toward the other flange side with a predetermined step are provided, and the end of the other flange is abutted against the end of the one flange. a folded piece that is formed adjacent to the flange along the back side of the flange and is folded overlappingly on the back side of the flange and abuts the step piece of one flange; This is characterized in that a step piece is provided which comes into contact with the folded piece of one flange.

(Function) At the abutting portion of both flanges, the step piece comes into contact with the folded piece of the flange on the t-th side and is prevented from lifting up, so both flanges become flush at the abutting portion. .

(Example) Hereinafter, an example in which the present invention is applied to a cabinet constituting an outer box of a refrigerator will be described with reference to FIGS. 1 to 6.

First, as shown in FIG. 6, the left and right sides 111a, llb, and upper side m11c of the cabinet 11 are formed by bending a single metal plate into a substantially U-shape. Flanges 12 to 14 are formed at the front edges of each side surface 11a to llc of this cabinet 11 by being bent inward at 90 degrees, and the front side of these flanges 12 to 14 is shown in FIGS. 4 and 5. As shown in the figure, the back side is bent into a roughly U-shape. Note that a magnetic gasket of a door (not shown) is brought into contact with the front surfaces of the flanges 12 to 14.

Now, both ends of the flange 13 of the upper surface 11c are butted against the upper ends of both the left and right surfaces (111 surfaces 11a and llb as described below.The configuration of this butted portion is as follows.
Since both ends of the flange 13 are the same, here we will explain the abutment structure between the left end and the upper end of the flange 12, and omit the explanation of the abutment structure between the right end and the upper end of the flange 14. do.

That is, FIG. 4 shows a state in which the metal plate 15 forming the cabinet 11 is bent into a substantially U-shape, and triangular pieces 16 to 1 are formed at the right end of the flange 13 and the upper end of the flange 12, respectively. has been done. The lower triangular piece 17 at the right end of one flange 13 is folded back so as to overlap with the back side of the flange 13 to form the folded piece 20 shown in FIG. By bending the metal plate 15 into an oval shape so that it is recessed toward the back side by an amount equivalent to the thickness of the metal plate 15, the step piece 21 is extended toward the flange 12 side as shown in FIG.
It is configured as

In addition, by bending one lower triangular piece at the upper end of the other flange 12 into an abbreviated shape so as to be recessed toward the back side by an amount equivalent to the thickness of the metal plate 15, the flange 13 side is bent as shown in FIG. By folding the upper triangular piece 18 so as to overlap the back side of the flange 12, the folded piece 23 shown in FIG. 5 is formed. As a result, both flanges 12 and 13 have folded pieces 20° stepped pieces 2 aligned along the abutting portion of both flanges 12 and 13, that is, a 45 degree straight line.
1 and step piece 22. Folded parts A and B of folded piece 23
, these folding pieces 201, step pieces 21, and step pieces 22. This means that the folded pieces 23 are formed adjacent to each other and staggered.

Then, when the cabinet 11 is formed by bending the metal plate 15 into a substantially U-shape, the step piece 11 of one flange 13
is in contact with the rear side of the folded piece 23 of the other flange 12, and the step piece 22 of the other flange 12 is in contact with the rear side of the folded piece 20 of one flange 13.

Therefore, if one flange 13 is not bent to 90 degrees, the step piece 21 of the flange 13 will be locked to the folded piece 23 of the other flange 12, so that the one flange 13 is prevented from floating up from the other flange 12. In addition, if the other flange 12 is not bent to 90 degrees, the stepped piece 22 of the flange 12 is locked to the folded piece 20 of one flange 23, so that the other flange 1
2 is prevented from floating up from one flange 13. Therefore, the flanges 12 and 13 do not stand up from the other flange at their abutting portions, but are flush with each other.

In addition, although the said Example demonstrated applying to the outer box of a refrigerator, this invention is not limited to this, but can be widely applied to a cabinet in general.

[Effects of the Invention] As explained above, according to the present invention, the stepped pieces of adjacent flanges come into contact with the folded pieces of the opposing flanges at the abutting portions, and are prevented from lifting up. This provides an excellent effect in that the front surfaces of the flanges can be flush with each other at the abutting portions.

[Brief Description of the Drawings] Figures 1 to 6 show an embodiment of the present invention.
Figure 1 is a front view of the main parts, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, Figure 3 is a sectional view taken along the line ■-■ in Figure 1, Figures 4 and 5. The figures are perspective views showing the steps for forming the folded pieces and the stepped pieces, and FIG. 6 is a perspective view of the cabinet. Moreover, FIGS. 7 to 9 show conventional examples, and FIGS.
The figure is a view corresponding to FIG. 1, FIG. 8 is a sectional view taken along the line ■-■ in FIG. 7, and FIG. 9 is a view equivalent to FIG. In the figure, 1 is a cabinet, 12 to 14 are flanges, and 15
20 is a metal plate, 20 is a folded piece, 21.22 is a step piece, and 23 is a folded piece.

Claims (1)

[Claims] 1. In a metal plate bent to form at least two adjacent sides, a flange formed by bending inward at the front edge of the two sides, and an end of one of the flanges on the two sides. A folded piece is formed so as to be adjacent to the end of the other flange along the part that abuts against the end of the other flange, and is bent in an overlapping state on the back side of the one flange, and a folded piece is bent toward the other flange side with a predetermined step. The extended step piece is formed so as to be adjacent to the end of the other flange along a portion that abuts against the end of the one flange, and is bent on the back side of the flange in an overlapping state. A cabinet comprising: a folded piece that abuts a stepped piece of a flange; and a stepped piece that extends toward one flange with a predetermined step and abuts the folded piece of the one flange.