JPH01142165A - Siding board - Google Patents

Abstract

PURPOSE: To prevent deformation in the whole of a siding board by using an embossed material as a backing material and absorbing expansion/shrinkage of the backing material by irregularities of the emboss pattern. CONSTITUTION: A facing material 1 molded into a gutter-shape substantially in a cross section, a core material 5 formed of a synthetic resin foaming body filling the back face of the facing material 1, and a backing material 6 formed of a sheet type object covering the back face of the core material 5 are layered and integrated into a siding board. In the siding board, an embossed material is used as the backing material 6. In this way, expansion/shrinkage of the backing material 6 is absorbed by irregularities of an emboss pattern 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a siding board used as an exterior material for buildings and structures.

[Conventional technology]

Generally, siding boards, which are lightweight and have heat insulating properties, are often used as exterior materials in buildings and structures. This siding board is made by forming a thin metal plate or plastic into a roughly gutter-shaped cross section as the surface material, filling the back side of this surface material (gutter-shaped part) with a core material such as synthetic resin foam, and filling the back side of the core material with It was made by laminating and integrating backing materials such as sheet-like materials.

[Problem that the invention seeks to solve]

However, this type of siding board has a surface material,
The siding board is a laminate made of different materials, a core material and a backing material, and has the disadvantage that the difference in the degree of expansion and contraction of each material causes deformation of the entire siding board. In particular, this phenomenon is largely due to expansion and contraction of the backing material due to temperature and humidity. In other words, since the synthetic resin foam used as the core material has cushioning properties, it absorbs its expansion and contraction by itself and does not cause deformation of the entire siding board, but the expansion and contraction of the backing material, especially the contraction, is directly affected by the surface material. This had the disadvantage of affecting the surface area and causing convex warpage.

Means for Solving Problem C] In order to eliminate such drawbacks, the present invention uses an embossed material as the backing material of the siding board, so that the expansion and contraction of the backing material is absorbed by the unevenness of the embossed pattern. The present invention proposes a siding board that prevents deformation of the entire siding board, improves the design of the back surface of the siding board, and strengthens the adhesive strength between the core material and the back material.

〔Example〕

The siding board according to the present invention (
(hereinafter simply referred to as the board) will be explained in detail. That is, FIG. 1 is a typical embodiment of the above board A,
1 is a surface material, such as a surface-treated steel plate, a steel plate plated with a zinc-nickel alloy, an aluminum-zinc alloy plated steel plate (product name Galfan, Galvalume steel plate, Super Zinc), an aluminum plate, an aluminum alloy plate, a copper plate, etc. It is made of one type of thin plate or synthetic resin plate, and is formed into a generally gutter-like cross section by roll forming, pressing, extrusion, drawing, injection molding, etc. The material for the surface material 1 may be either a flat plate or an embossed material. To explain further, in the board A shown in FIG. When installing, connect the male and female joints 3.4
The wall body is constructed by fitting and locking the two. 5 is a core material, which is filled in at least the surface material 1 and mainly functions as a heat insulating material.

Its main material is synthetic resin foam such as polyurethane foam, polyisocyanurate foam, polyurea foam, polystyrene foam, phenol foam, polyimide foam, etc., and flame retardants and flame retardant aids (borax) are used as necessary. , sodium metaborate, antimony trioxide, calcium carbonate, aluminum hydroxide), bentonite, pearlite grains, and shirasu balloons. In addition, 6 covers the back surface of the core material 5 with a back material and makes the board A a laminate to improve the mechanical strength and the weather resistance of the core material 5. The materials include, for example, asbestos paper, kraft paper, asphalt felt, metal plate, metal foil (A It % Pe, Pb5Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric. It consists of a sheet-like material laminated with one or more of the following. To explain further, the back material 6 has an embossed pattern 7 such as a stucco pattern, a wood pattern, a dome pattern, a crater pattern, etc., for example. This embossed pattern 7 is composed of convex portions 1as and concave portions 7b, and can improve the design of the back surface of the board A, and can prevent the expansion and contraction of the back material 6 from extending to the entire board A. In other words, the embossed pattern 7 is
As conceptually shown in Figures (a) and (b), when the back material 6 contracts, the convex portions 7 of the embossed pattern 7 as shown in Figure (a)
a changes from the position of the broken line to the position of the solid line, so that the width of the entire back material 6 does not change. Furthermore, when the backing material 6 expands, the embossed pattern 7 changes from the broken line to the solid line as shown in the figure, so that the overall width of the backing material 6 does not change. That is, the embossed pattern 7 has a temperature of the back material 6,
This serves to absorb expansion and contraction due to humidity, etc., and prevent board A from changing. Furthermore, the embossed pattern 7 thickens the contact area between the core material 5 and the back material 6 (and also serves to strengthen the adhesive strength due to the anchor effect of the unevenness).
It also helps to strengthen the laminated composite strength of board A. In addition, the back material 6 is a mold release material used when reacting, foaming, and molding the raw material of the synthetic resin foam that is the core material 5 between the surface material 1 and the back material 6 in a batch method, continuous line method, etc. It also functions as

What has been described above is only one embodiment of the board A according to the present invention, and FIGS. 3(II) to (0) to FIGS. 7(a) to (C1
It can also be formed as shown in FIG. In other words, Figure 3 (
a) to (0) and FIG. 4(a) to (Z) are modified examples of the surface material 1, and FIG. 3(a) to (0) are modified examples of the decorative surface 2, and the designability, They are arbitrarily shaped to improve the design, and Figures 4 (a) to (1) are male,
This is a modification of the female coupling part 3.4. Also, Figure 5(a)~
(f) is a modified example of the core material 5, and in particular (a) to (d) are board A in which the core material 5 is filled in areas other than the gutter-shaped portion of the surface material 1.
It is. Further, FIGS. 6(al to (0)) are for explaining the placement state of the backing material 6, and FIG. (B) shows a board A in which at least one edge of the back material 6 is sandwiched between the surface materials 1, (Fig. 01 shows a board in which the edge of the back material 6 protrudes from the edge of the surface material 1. A.Furthermore, FIGS. 7A to 7C show holes 7c formed in the backing material 6. When discharging gas or synthetic resin foam or laminating the backing material 6, the air caught in the core material 5 can also be released to the outside through the holes 7c. (0)~6th
In Figures (a) to (C), the embossed pattern 7 is omitted. Of course, Fig. 3(a) to (0) to Fig. 7(a) to (
Board A may be a combination of C).

〔Effect of the invention〕

As mentioned above, according to the board according to the present invention, the embossed pattern on the backing material absorbs the expansion and contraction of the backing material, so the board does not deform; and the embossed pattern on the backing material increases the adhesive strength between the backing material and the core material. This improves the laminated composite strength of the entire board. ■Improves the design of the back side of the board. It has the following effects and characteristics.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the siding board according to the present invention, FIGS. 2(a) and (bl are explanatory views explaining one function of the embossed pattern, and FIGS. 3(a) to (0)) , Fig. 4 (al ~<1), Fig. 5 (al ~ (f), Fig. 6 (
a) - (C), Fig. 7 (a) - (C1 is an explanatory diagram showing other embodiments. A... Siding board, 1... Surface material, 5...
- Core material, 6... Back material, 7... Embossed pattern. 1r (Shin

Claims (1)

[Claims] (1) A surface material formed into a substantially gutter-shaped cross section, a core material made of a synthetic resin foam filled in at least the gutter-shaped portion of the surface material, and a back material made of a sheet-like material covering the back surface of the core material. What is claimed is: 1. A siding board comprising: a siding board comprising: a siding board, wherein the back material is embossed;