JPH03169959A - Metal panel for finishing building - Google Patents

Abstract

PURPOSE:To secure the rigidity of a metal panel on the out-of-plane side thereof by bonding a lightweight hard foamed plastic plate to the recessed part formed to the back of the metal panel having a groove cross-sectional shape. CONSTITUTION:A metal panel 1o is formed from an aluminum panel or a color steel panel and a groove cross-section having mounting flanges 1oa on both sides in the lateral direction thereof is formed to the metal panel 1o. Next, a hard foamed plastic plate 2 is molded by the extrusion foaming or beads foaming of plastic and a skin layer is formed to the surface thereof. This hard foamed plastic plate 2 is bonded to the back of the recessed part of the metal panel 1o by an adhesive 3. By this method, the wt. of the metal panel can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a metal plate for finishing a building, which is attached as a finishing material to the frame of a building.

(Prior art and problem to be solved by the invention) Metal plates that are applied as finishing materials to the exterior walls and ceilings of buildings are usually manufactured using extrusion molding, etc., resulting in a thin cross-section. Due to its poor rigidity, it is easily bent by its own weight, especially on the ceiling surface, and when used alone, it easily causes out-of-plane deformation, which tends to spoil the appearance of the building. For this reason, metal plates are generally treated to maintain their shape.

Conventionally, to compensate for the easily deformable nature of the metal plate, plasterboard was glued to the back of the metal plate, or urethane foam was sprayed onto the back of the metal plate, or products such as Tomrex (product name) and Glite (product name) were used. Rigidity can be added by spraying fire-resistant coating material, etc., but with the former method, the weight of the plasterboard is large and it tends to fall off, and it also has problems such as poor cutting performance and difficulty in transportation and construction. There's a problem.

On the other hand, the latter method of spraying urethane foam has insufficient rigidity to maintain the flatness of the metal plate, and the method of spraying fireproof coating material requires a long time from foaming to drying. The reality is that each has its own challenges.

This invention was made based on this background, and aims to propose a new metal plate that solves the above problems.

(Means for Solving the Problems) In the present invention, by pasting a hard foamed plastic plate to the recess on the back side of a metal plate having a groove-shaped cross section with an adhesive or adhesive, the weight can be reduced, and at the same time, the weight can be reduced. It improves workability and solves problems with conventional methods such as spraying.

Furthermore, for example, an extruded foamed plastic plate having a skin layer with a lower foaming ratio than the intermediate layer on both sides of a hard foamed plastic plate,
By using the Ren plate, the surface layer, which is the adhesive surface with the metal plate, is made hard and smooth, and the adhesiveness with the metal plate is improved.

(Example) The present invention will be explained below based on the drawings showing one embodiment.

The finishing metal plate l of this invention is a metal vi1 shaped into a grooved cross-sectional shape as shown in FIG. It is shaped by pasting a hard foamed plastic plate 2 on the back side of the main body, which is a concave part, with an adhesive or adhesive 3, and can be used as an exterior material for general exterior walls or as an interior material for interior walls, ceilings, etc. of buildings. It can be pasted.

Metal plate 1. It is mainly made of aluminum, colored steel plate, stainless steel, etc., and has a wall thickness of about 12.0 mm, and has flanges 1 for mounting on both sides in the width direction as shown in the figure.
. a, 1. The basic shape is a groove-shaped cross-sectional shape having a. This basic shape has flanges 1 on only two sides. a, the other two sides are open, and there are flanges 1 on the four sides.

It includes a shape with a closed circumference.

This metal plate 1. Depending on the part to which the main finishing metal plate 1 is attached, it can be shaped into an asymmetrical shape as shown in FIG. 2 or a curved shape as shown in FIG. 3.

The rigid foam plastic plate 2 is made of polystyrene, polyvinyl chloride, or high-density polyethylene. Metal sheets are formed by extrusion foaming, bead foaming, etc., of plastics such as polypropylene and polymethyl methacrylate, but extrusion foaming, which forms a skin layer on the surface and hardens the surface, is used to form metal plates. l. Effective for adhesion with

The skin layer is a finely foamed layer with a foaming ratio about 5 times lower than the middle layer, which is formed on both surface parts of the board when plastic is extruded, and is a relatively dense and hard part. This enhances the effect of maintaining the shape of the metal plate 10 and adhering thereto.

The hard foamed plastic plate 2 having this skin layer is the metal plate 1 among the above specific examples. Extruded foamed polystyrene is most suitable because of its adhesive properties and ease of attachment, for example, because it can be attached by simply attaching a release paper to the adhesive 3 and removing the release paper. It is preferable that the adhesive 3 is applied to the entire surface of the rigid foamed plastic board 2.

In addition, the adhesive 3 is a metal plate 1 of the hard foam plastic plate 2.
. Metal plate 1 while maintaining the adhesive state to. Use of a rubber or acrylic material with viscosity or viscoelasticity that can follow dimensional changes over time such as thermal expansion and contraction of the plastic foam board 2 or creep of the hard foam plastic board 2, and can prevent peeling of the hard foam plastic board 2. is preferred.

Furthermore, an acrylic resin containing a cyanoacrylate curing agent may also be used. In particular, it is preferable to use an adhesive or pressure-sensitive adhesive that retains viscoelasticity or elasticity even after curing.

The hard foam plastic plate 2 is attached to the metal plate 1 by this adhesive 3. If the recess is shallow as in the embodiment shown in FIG. There is a metal plate 1 between the inner surfaces of the . In order to allow for deformation in the width direction of the board and for workability of pasting, the clearance C is 173 to 1 of the thickness of the hard foam plastic board 2.
Approximately 72 is taken. The embodiment shown in FIGS. 2 and 3 is a metal plate 1. This is an example of manufacturing when the recess is relatively deep, but in these cases, a hard foamed plastic plate 2 is used to stiffen the rising part of the recess.
is pasted on the entire inner circumference of the four parts.

(Effects of the Invention) This invention is as described above, and since the rigidity of the metal plate in the out-of-plane direction is ensured by pasting a lightweight hard foam plastic plate on the back surface of a thin metal plate, peeling etc. It is possible to maintain the flatness of the surface without causing any damage, and since the stiffener is a plastic plate, it is easy to cut and process, and it is also possible to add heat insulation to the metal plate. can.

[Brief explanation of the drawing]

1 to 3 are perspective views showing embodiments of the present invention. 1... Finishing metal plate, 1. ...Metal plate, loa...Flange, 2...Hard foam plastic plate, 3...Adhesive, C...
···clearance.

Claims (2)

[Claims] (1) It is a metal plate with a groove-shaped cross section that is attached to the surface of the building frame for finishing purposes, and is characterized by a hard foamed plastic plate attached to the recess on the back side of the metal plate. Metal plates for finishing of buildings. (2) The metal plate for finishing a building according to claim 1, wherein the rigid foamed plastic plate is an extruded polystyrene foam plate having skin layers having a lower foaming ratio than the intermediate layer on both sides.