JP2589437B2 - Box-shaped wall panel made of metal plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal box-shaped wall formed by pressing a rectangular metal plate into a thin box shape and having a mounting flange for screwing on each side. About the panel.

[0002]

2. Description of the Related Art In this type of conventional wall panel, a metal plate is used as a material of the wall panel, and it is attached as a finishing material to an outer wall (sometimes an inner wall) of a building that requires particularly high strength. Then, the mounting flanges of each side are screwed to the outer wall base material, overlapped with other panels by the mounting flanges, and a caulking material is filled between the wall panels.

FIG. 5 shows a conventional wall panel of this kind made of a metal plate. A mounting flange 55 is formed on a box-shaped main body 51 so as to be connected to each side wall 53. In the box-shaped main body 1, the corners are shrunk on the portions so that the corners are continuously rounded.
In order to make it press-moldable, a notch 59 which is considerably wide is provided at each corner, and the notch rises up to the processing surface portion 57 to open the inside of the box-shaped main body. The mouth 61 was wide open.

[0004]

As described above, the box-shaped wall panel made of a conventional metal plate has a wide corner and is notched deeply as described above, and the opening 61 is largely open. It is difficult to fill the caulking material, and even if the caulking treatment is applied, rainwater infiltrates from the opening, which not only causes the decay of the building frame, but also causes the panel itself to rust inside. There was a problem of becoming. However, it was not possible to narrow the notch 59 or eliminate the opening 61 due to press molding.

[0005] In this regard, at the corner at the time of press molding, the material shrinks, which causes plastic deformation which is extremely difficult to process. Therefore, the notch 59 must be formed so that the mounting flange does not hinder the deformation. It is necessary to provide it widely and deeply.
Due to excessive deformation, press molding to a desired shape could not be performed.

[0006] Since the opening 61 could not be eliminated in this way, especially when used as an outer wall, the inner opening was sealed by previously applying an inner lid to the inside of the corner and fixing it. However, there is a problem that the working efficiency is significantly impaired.

The present invention has been made in view of the above-described circumstances,
It is an object of the present invention to provide a box-shaped wall panel made of a metal plate that has not only a narrow notch at a corner, but also a form having no opening inside the box-shaped main body, and that form does not hinder press forming. The purpose was.

[0008]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a method for forming a rectangular metal plate having a notch at each corner by pressing the rectangular metal plate. In the metal-plate box-shaped wall panel in which both side walls are integrally provided with a shrink-processed surface that is surface-continuous, and the mounting flanges are protruded on each side, the two mounting flanges adjacent at each corner come close to each other. The notch is formed to be narrow, and a cut portion is provided between the mounting flange and the shrink processing surface portion, which is vertically divided, and a lower edge of the cut portion is covered from the outside by the shrink processing surface portion.

[0009]

[Function] Since the box-shaped wall panel made of a metal plate is configured as described above, not only the mounting flanges are close to each other at each corner, but the notch is narrow, and the mounting flange is shrunk. Special sealing treatment, such as bonding the inner lid for preventing rainwater from entering, since the lower edge of the break between the surface and the lower edge is covered with the shrink-processed surface and there is no opening for the box-shaped body. Need not be applied.

[0010] In the press working, since the shrinking processing surface portion for continuously connecting both side walls integrally is separated from the mounting flange, the mounting flange does not hinder the plastic deformation of the shrinking processing. The mounting collar does not undergo abnormal deformation.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIGS. 1 to 3 show an embodiment according to the present invention. The box-shaped wall panel made of a metal plate is formed by pressing a rectangular metal plate P (see FIG. 4). At each corner of the box-shaped main body 1, mounting flanges 3 are protruded, and at each corner, a notch 4 is opened in a fan shape between the mounting flanges 3 at the base. It occurs in a narrow, close state.

Further, it is also possible to bring the two mounting flanges 3 and 3 close to each other so as to abut each other. In this case, the butting edges of the mounting flanges 3 and 3 are formed obliquely at a 45 degree angle.

The box-shaped main body 1 is formed such that, at each corner, a shrink-processed surface portion 7 where adjacent side walls 5 and 5 are continuous is formed in a curved shape. Since the mounting flange 3 also faces below the shrinking processing surface portion 7, a disconnection portion 9 in which the material is divided is provided therebetween so that the shrinking deformation does not spread to the mounting flange 3.

Since the cut 9 is provided at the lower end of the side wall 5, the lower edge 11 of the cut 9 is raised, and the lower edge 11 is shrunk and covered from the outside by the lower end of the processing surface 7. ing. With this, the part is sealed so that rainwater does not enter from the divided part.

As described above, the shrink-processed surface portion 7 is
In order to cover the lower edge 11, the lower end portion has a curved shape slightly curved outward. Slightly small hole 1 at both ends
Although the holes 3 and 13 are generated, the caulking treatment eliminates rainwater infiltration in such a hole.

The metal plate P is coated on both sides. 14 is a hole to be screwed to the building frame.
Note that as other materials, an aluminum alloy plate, a copper plate, or the like can be used.

FIG. 4 is an explanatory view showing a corner portion of the metal plate P before press working, and an original notch 4 is provided at each corner of the metal plate P. Notches 9 and 9 are formed on the left and right of the inner end in the form of cutout grooves.

The original notch 4 shown in FIG.
Is formed in a short range up to the bending position L, so that the mounting flanges 3, 3 abut at the base by molding the box-shaped main body 1. This original notch 4 is narrower than the conventional notch position M (see FIG. 5). Because the mounting flange 3 is protruded by that much, the cut of the cutoff portion 9 is formed up to a position corresponding to the protruded portion, that is, the position M of the notch end of the related art.

The portion 7a serving as the shrinking processing surface portion 7 is formed in an arc-shaped edge, and in press molding, the box-shaped main body 1 is formed by contracting in the circumferential direction (the direction of arrow Q). At this time, since the extension accompanying the contraction occurs in the outer angle direction (the direction of arrow R), this portion 7a is formed in anticipation of the extension. Although not shown, the narrow holes 13 on both sides of the shrink processing surface portion 7 can be made as small as possible by reducing the width of the cut groove of the cut-off portion 9 to its deep end.

[0021]

As described above, according to the present invention, there are the following excellent effects.

1) At the corner of the box-shaped wall panel made of metal plate, not only the notch is narrow until both mounting flanges come close to each other, but also the opening of the box-shaped main body is eliminated, and the corner is sealed. Therefore, even if it is used as an outer wall, infiltration of rainwater is eliminated, and rust on the inner surface due to infiltration of rainwater and decay of the building frame can be prevented.

2) In order to save troublesome work such as bonding an inner lid to an inner surface of a corner in advance when attaching,
Workability is improved, efficiency is improved and labor saving is achieved, and labor costs can be reduced to reduce construction costs.

3) Compared to the case where each corner is open,
Of course, the appearance is good, but despite the fact that each corner is sealed, press forming is possible, and even if the notch is narrow so that both mounting flanges are close, The mounting flange is not subjected to abnormal deformation, the manufacture is as easy as the conventional one, and it is suitable for low-cost mass production.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing one embodiment in a cutaway manner.

FIG. 2 is an overall plan view of the embodiment.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 4 is an explanatory partial plan view before pressing a metal plate as a material used in the embodiment.

FIG. 5 is a perspective view showing a conventional example corresponding to FIG.

[Explanation of symbols]

 P Metal plate 1 Box-shaped main body 3 Mounting flange 4 Notch 7 Shrink processing surface 9 Breaking part 11 Lower edge

Claims (1)

(57) [Claims] 1. A rectangular metal plate (P) having a notch (4) at each corner is pressed to form a side wall (5, 5) at each corner of the box-shaped main body (1). Is provided with a shrink-processed surface portion (7) that is integrally continuous with the surface, and in a box-shaped wall panel made of a metal plate having mounting flanges (3) protruding on each side, both mounting flanges (3, 3) adjacent at each corner are provided. The notch (4) is formed to be narrow until the 3) approaches, and a cut-off portion (9) is provided between the mounting flange (3) and the shrinking processing surface portion (7). A box-shaped wall panel made of a metal plate, wherein a lower edge (11) of the cut-off portion (9) is covered from outside with a processing surface portion (7).