JPH08121031A - Heat-insulating panel - Google Patents

Abstract

PURPOSE: To facilitate the production of a heat-insulating panel filled with a core material, between skins formed of two metallic sheets, to keep the strength of fitting from being loosened at the place where a fitting projection part is fitted into a recess part to be fitted, and to heighten strength for attaching a member, e.g. a frame member, to the panel, utilizing such structure effectively. CONSTITUTION: For a skin 1 on one side of a panel, side end face areas 4, 4 each corresponding to both end parts in the cross direction of the panel are bent. On one side 4 thereof, a fitting projection part 7 ranging over the whole length of the panel, from upper to bottom, is formed by bending, and on the other side 4 thereof, a recess part 11 to be put on the fitting projection 7 is formed by bending. An end part 5 being allowed to go round to the surface of the skin side on the other side of the panel is extended from the top end of each of the side end face areas 4, 4, and the top end of the end part 5 is folded back on the inner-surface side thereof, and a folded part 6 to be engaged is formed. On the other hand, for a skin 2 on the other side of the panel, both end parts are folded back inward, and at the top end of each of folded parts 8 of the skin 2, an engaging part 9 is formed by being bent almost in the shape of a letter S. The end parts 5 of the skin 1 each are laid on the folded parts 8 of the skin 2, and the engaging parts 9 each are engaged with the folded parts 6 to be engaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel, and more particularly, it facilitates the manufacture of a heat insulating panel in which a core material is filled between the outer skins of two metal plates, and has a fitting convex portion and a fitting concave portion. The present invention relates to a technique for avoiding the loosening of the fitting strength and effectively utilizing such a structure to increase the mounting strength of the frame material, for example.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a heat insulating panel Aa constructed by attaching metal skins 1 and 2 on both sides of a synthetic resin core material 3a is provided on one end surface of the panel. The fitting concave portion 11a is formed with the fitting convex portion 7a on the other side, and the fitting concave portion 11a and the fitting convex portion 7a are fitted into the concave and convex portions to connect the panels.

The tip pieces 1a of the outer skins 1 and 2 are
2a are bent and embedded in the synthetic resin core material 3a in the central portions of the fitting concave portion 11a and the fitting convex portion 7a, respectively, as shown in FIG.

[0004]

However, in the case of such a structure, the production method is such that the outer skins 1 and 2 on the front and back are held by the attachment force by the foam molding of the synthetic resin core material 3a, and the manufacturing becomes difficult. Then, there is a problem that the manufacturing apparatus of the heat insulation panel becomes large. Even so, the fitting recess 11a tends to widen when the fitting recess 11a and the fitting projection 7a are fitted into the recess and projection in the panel connection.
Therefore, when used for a sliding door such as a rain door, there is a problem that the fitting strength is reduced at an early stage. Further, when the frame material is screwed and attached to the heat insulating panel Aa, the inside is the synthetic resin core material 3a, and it is difficult to increase the attachment strength.

The present invention has been made in view of such problems, and an object thereof is to facilitate the manufacture of a heat insulating panel in which a core material is filled between the outer skins of two metal plates, and Avoid loose fitting strength between the fitting protrusion and the fitting recess,
An object of the present invention is to provide a heat insulating panel that can effectively use such a configuration to enhance the mounting strength of the frame material, for example.

[0006]

According to a first aspect of the present invention, there is provided a heat insulation panel in which a core material 3 is filled between the outer skins of two metal plates, and one outer skin 1 is provided at both end portions in the width direction of the panel. The side end face pieces 4 and 4 are bent, a fitting convex portion 7 is formed on the side end face piece 4 on one side thereof and extends over the entire length in the vertical direction, and the side end face piece 4 on the other side is fitted to the fitting convex portion 7. A mating recess 11 is formed, and a wrap-around piece 5 that wraps around from the tip of each side end surface piece 4 to the other outer surface of the panel is extended, and the tip of the wrap-around piece 5 is bent to the inner surface side. The engaged portion 6 is formed, and the other outer skin 2 is folded inward at both end portions in the width direction of the panel, and the folded piece 8 has a substantially S-shaped end at the tip thereof.
The engaging portion 9 is formed by bending it into a letter shape, the wrapping piece 5 of the outer skin 1 and the folded piece 8 of the other outer skin 2 are overlapped, and the engaging portion 9 is engaged with the engaged portion 6. It is characterized by consisting of.

[0007]

According to the first aspect of the present invention, the fitting recess 11 is formed on the outer cover 1 in series, and the fitting projection 7 is also formed on the outer cover 1 in series. Avoid loose fitting. It can be favorably used for sliding doors and the like in which these fitting and releasing are frequently performed. In the manufacture of the heat insulating panel A, the wrapping piece 5 of the outer skin 1 and the folded piece 8 of the other outer skin 2 are overlapped with each other, and the engaging portion 9 is engaged with the engaged portion 6. The joining of the outer skins 1 and 2 on both sides is not due to the adhesive force accompanying the foam molding of the synthetic resin core material 3 as in the conventional case, but is due to the mechanical joining force between the engaging portion 9 and the engaged portion 6,
Its production can be selected by various means other than foam molding. Avoid increasing the size of the production facility. Easy production. In the manufactured heat insulation panel A, the wrap-around piece 5 of one outer cover 1 and the bending piece 16 forming the engaged portion 6, the other outer cover 2 and the folding piece 8 thereof.
The sheets overlap. In this way, using the four-fold overlapping part,
For example, the frame material can be firmly attached by screwing means.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. Both outer skins 1 and 2 facing the front and back are metal plates, and a heat insulating panel A is configured by filling a core material 3 between the outer skins 1 and 2. The core material 3 is a synthetic resin or an inorganic material, and has sufficient heat insulating properties. The constituent members will be described in detail below.

In one outer cover 1 which is a front side in a use state, side end face pieces 4 and 4 are bent at both ends in the width direction of the panel. The side end face piece 4 on one side is formed with a fitting convex portion 7 extending over the entire length in the vertical direction. The side end surface piece 4 on the other side is formed with a fitting concave portion 11 that fits into the fitting convex portion 7. A wrap-around piece 5 extending from the tip of each side end surface piece 4 to the other outer surface side of the panel is extended. The tip of this wrap-around piece 5 is bent toward the inner surface side to form an engaged portion 6. The other outer cover 2, which is the back in the use state, has both ends in the width direction of the panel folded back inward. An engaging portion 9 is formed at the tip of the folded piece 8 by being bent into a substantially S shape.

Thus, the core material 3 made of synthetic resin is filled in the inside of the one outer skin 1, the wrapping piece 5 of the one outer skin 1 is overlapped with the folded piece 8 of the other outer skin 2, and the engaging portion is formed. 9 is elastically engaged with the engaged portion 6 to produce the heat insulating panel A. Such a synthetic resin core material 3 may be molded in advance, or may be foam-molded between the engagingly connected outer skins 1 and 2.

As shown in FIG. 2, a frame member 12 having an H-shaped cross section is engaged with a lower end portion of the heat insulating panel A in a space above the frame member 12 by a bolt 13 such as a self-drilling screw. It will be fixed. In this case, a bolt 1 such as a self-drilling screw is formed at a portion where four pieces of the wrap-around piece 5 of the one outer skin 1 and the bent piece 16 forming the engaged portion 6 and the other outer skin 2 and the folded piece 8 thereof overlap.
It is stopped at 3 to increase its mounting strength.

As described above, the one outer cover 1 has the side end face pieces 4 and 4 bent at both ends in the width direction of the panel, and the side end face piece 4 on one side is formed with the fitting convex portion 7 extending over the entire vertical length. A fitting recess 11 that fits into the fitting projection 7 is formed on the side end surface piece 4 on the other side, and the fitting recess 11 is formed in series on the outer skin 1. Further, the fitting projection 7 is also formed on the outer skin. 1 is formed in series,
This prevents the fitting recess 11 and the fitting projection 7 from being loosened. Therefore, it can be favorably used for a sliding door or the like in which these fitting and releasing are frequently performed.

In the production of the heat insulating panel A,
The joining of the outer skins 1 and 2 on both sides is not due to the adhesive force associated with the foam molding of the synthetic resin core material 3 as in the conventional case, but is the mechanical joining force between the engaging portion 9 and the engaged portion 6. This is because various other means other than foam molding can be selected for the production, the production equipment can be prevented from increasing in size, and the production can be easily performed. Moreover, in the manufactured heat insulation panel A, the wrapping piece 5 and the bending piece 16 of the outer skin 1 on one side, the outer skin 2 and the folding piece 8 thereof on the other side 4
The sheets are overlapped with each other, and by utilizing the quadruple overlapped portion in this manner, for example, the frame member 12 is firmly attached by screwing means to form a sliding door such as a rain door. 1 in the figure
Reference numeral 0 denotes a groove, which enhances the bonding strength with the synthetic resin core material 3. The groove 10 can be used as a handle for opening and closing, or a key can be attached. Further, 14 is a roller runner, and 15 is an opening frame (sash) attached to the opening.

[0014]

According to the first aspect of the present invention, one outer cover has side end face pieces bent at both end portions in the width direction of the panel, and one side end face piece is formed with a fitting convex portion extending over the entire vertical length. Since the fitting concave portion that fits into the fitting convex portion is formed on the side end face piece on the side, the fitting concave portion is formed in a series on the outer skin, and the fitting convex portion is also formed in a series on the outer skin. It is possible to avoid looseness in the fitting between the fitting concave portion and the fitting convex portion, and it can be suitably used for sliding doors, etc., where the frequency of fitting and releasing is high, and in the manufacture of heat insulation panels. ,
On one side, a wrap-around piece extending from the tip of each side end surface piece of the outer skin to the other outer-side surface of the panel is extended, and the tip of this wrap-around piece is bent to the inner surface side to form an engaged portion. Both ends of the other skin in the width direction of the panel are folded back inward, and the tip of the folded piece is bent into a substantially S-shape to form an engaging portion. Since the folded piece of the outer skin of one piece and the outer skin of the other are overlapped and the engaging portion is engaged with the engaged portion, the joining of the outer skins on both sides is
It is not due to the adhesive force that accompanies the foam molding of the synthetic resin core material as in the past, but due to the mechanical coupling force between the engaging part and the engaged part, and its manufacture is not foam molding. Various means can be selected, the production facility can be prevented from increasing in size, production can be performed easily, and in the manufactured heat insulation panel, the wrapping piece and the engaged part of one outer skin are formed. 4 pieces of the bent piece, the other outer skin and the folded piece that overlap with each other are overlapped. Thus, for example, the frame material can be firmly attached by the screwing means by utilizing the four-fold overlapped portion. There is an advantage that it can be effectively used as a sliding door such as a shutter.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (a) is a sectional view,
(B) is an exploded sectional view of both skins.

FIG. 2A is a perspective view of the same heat insulating panel used for a sliding door, and FIG.

FIG. 3 is a cross-sectional view of a conventional example with some parts omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 outer skin 2 outer skin 3 core material 4 side end surface piece 5 wrapping piece 6 engaged portion 7 fitting convex portion 8 folding piece 9 engaging portion 11 fitting concave portion

Claims (1)

[Claims] 1. A heat insulating panel in which a core material is filled between outer skins of two metal plates, and one outer skin has side end face pieces bent at both end portions in the width direction of the panel, and the side end face on one side thereof. A fitting protrusion is formed over the entire length in the vertical direction, and a fitting recess that fits into the fitting protrusion is formed on the side end face piece on the other side, and from the tip of each side end face piece to the other outer skin of the panel. The wrap-around piece that extends around the side surface is extended, the tip of the wrap-around piece is bent toward the inner surface side to form the engaged portion, and the other outer skin is formed at both ends in the width direction of the panel. And an engaging portion is formed at the tip of the folded piece by bending it into a substantially S-shape. The wrap-around piece of one outer skin and the folded piece of the other outer skin are overlapped with each other, and the engaging portion is covered. An insulating panel, characterized by being engaged with an engaging portion.