JPS615154A - Siding board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention integrates a fire-retardant plastic foam between a surface material made of a thin metal plate and a back material made of a fire-retardant sheet material. The present invention relates to a siding board (hereinafter simply referred to as "board") that is lightweight, has high heat insulation properties, and is highly productive, as well as passing the fireproof structure test.

This type of board, which has been conventionally used, has a surface material made of a thin metal plate formed into a concave shape, with male and female joints formed on the left and right side walls, and the surface is filled with polyurethane foam, polyisocyanurate foam, phenol foam, etc. The structure is such that the exposed surface is covered with a backing material made of a sheet-like material. However, for this type of board, quasi-incombustibility test (
Although it passed the surface test in JIS-A-1321), it had the drawback that it could not pass the Hox test and fire protection test (JIS-^-1301 wooden base grade 2). it is,
Flashover occurred in the box test, and the back surface temperature exceeded 260° C. in the fire protection test. In particular, the biggest weakness in the box test was the ejection of flammable gas from the joint, and in the fire protection test, the temperature rise on the back side of the joint was the biggest weakness.

In order to eliminate such drawbacks, the present invention ensures that the surface materials come into contact with each other at the joints of the board, reliably suppresses gas ejection from the joints by forming guide tongues, and also uses plastic foam, This paper proposes a hoard that can pass quasi-incombustibility tests and fire protection tests by configuring the backing material with a fire-retardant material.

An embodiment of the board according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing an example of the above-mentioned board, and the top shows surface materials such as metal thin plates such as surface-treated steel plates, stainless steel plates, galvanized steel plates, galvalume steel plates, aluminum plates, copper plates, PVC steel plates, fluorine-treated steel plates, etc.
It is made of one type of enameled steel plate or vibration damping steel plate, 15 is a plastic form (hereinafter simply referred to as foam), and 16 is a backing material. To explain further, as shown in FIG. 2, the surface material has a main body portion formed with a concave cross section from an elongated decorative surface 2 and side walls 3.4 whose both side edges parallel to the longitudinal direction are bent inward. J and male and female connecting parts formed at the lower ends of the side walls 3.4, which mainly function as fireproofing materials, decorative materials, reinforcing materials, molding materials, noncombustible materials, and waterproofing materials. It is. That is, the decorative surface 2 is a flat plate, an embossed pattern,
It has a surface structure with a chip attached. In addition, the male type connecting part has an insertion edge 7 extending outward from the lower end of the side wall 3.
It is formed from a reinforcing piece 8 whose tip is folded inward and extends as it is to the inside of the side wall 3, and a guide tongue piece 8a whose tip is bent outward, and connects the board A as shown in FIG. In addition to reliably preventing the ejection of flammable gas and decomposed gas from the joint part B to the decorative surface 2 side when the metal sheets are in contact with each other, it can also be used as reinforcement for the connection structure and fire protection structure, and as a mold material when forming the form. is also functional. Furthermore, the female connecting part (■) has an insertion groove 10 bent inwardly into a U-shape at the lower end of the side wall 4, an extension part 12 bored outwardly from its lower edge 11, and its tip bent outwards. Tongue piece 1
3 and a protrusion 1 formed parallel to the side wall 4 in the middle of the extension part 12
It is composed of 4. In particular, the dimensions of the insertion groove 10, the tongue piece 13, and the protrusion 14 are determined based on the connection between the boards A, the spacing between the joints B, fire prevention, and waterproofing. The dimensions on the surface material are, for example, the width of the decorative surface 2 as Wl, the width of the insertion edge 7 as W2, the width of the reinforcing piece 8 as W3, the width of the reinforcing piece 8 extending inward from the side wall 3 as W4, The width from the side wall 4 to the tongue piece 13 is W5, the width of the insertion groove 10 is W6, the width from the deepest part of the insertion groove 10 to the tongue piece 13 is W7, the height of the side wall 3 is hl, and the height of the side wall 4. The length is hl, the height of the insertion groove 10 is h9, the height of the tongue piece 13 and the protrusion 14 is H4, H5, the height of the guide tongue piece 8a is hG, and the plate thickness on the surface material is t. When, W+=1
80-450 van, W 2≧Wc 1W3#W2
+W4, W, -W3-W6, or W5#W6, W
7 #W2 +Wa, h 1= h 2, h2+h9-
h, -1-h 9, H4, H5-1 to 3 dragons, h6ζ
2 to 5 fi. In particular, when the guide tongue piece 8a is connected to the board A as shown in FIG.
The decomposition gas can be prevented from leaking to the outside from the joint part B. In addition, Foam 15 has fire retardant properties, heat insulation properties,
Materials with adhesive properties, such as polyisocyanurate foam, phenol foam, modified polyurethane foam, silicone foam, and one or more of these added with long and short glass fibers, perlite, mica, asbestos, silicone, carbon fiber, borax, etc. The core part 15a filled in the space of the main part, the reinforcing piece, and the extension part 1
2 and a bulging portion 15b that bulges downward. Note that the bulging portion 15b is divided into sections for convenience, and is actually made of one piece. In addition, the thickness of the form 15 is Hl as the thickest part, H2 as the thickness from the front surface to the back surface of the reinforcing piece 8, H3 as the thickness from the back surface to the lower edge of the decorative surface 2, and H1 as the thickness from the back surface to the back surface of the extension part 12. Patent T (1 = Hs → -H4, I] 2 - H
l −h 1, H2〉114, We =W! It is W2. The back material 16 coats the exposed surface of the four J, 15, and mainly contains a mold release material, a mold material, a fireproofing material, a waterproofing material, a heat shielding material,
It functions as an impermeable material to prevent gas leakage. Specific examples include asbestos paper, glass fiber sheets, vinyl chloride sheets, metal foils (^β, Fe, Cu
), or a sheet-like material with net-like material, waterproofing treatment, and fireproofing treatment added thereto.

Next, an example will be explained.

Surface material -1- is 0.21ss color steel plate W+-36
0 fin, W 2 =2011. , W 3 =34mmXW
4#11mm, W 5 = 20 1, WG = ■ 3 vs
S, W? =33+n, h1=8mm, h2=7
mm, h5=3.5 1m, h4=
Polyisocyanurate foam (density 50 kg/cJ
), manufactured by Nippon Polyurethane Co., Ltd. The backing material 16 is asbestos paper laminated with 20 micron aluminum foil. Further, the width Δt of the joint B between the boards A is 7 mm. Further, as a comparative example, a board having the same dimensions as in FIG. 2 was used except that the reinforcing piece 8 was removed on the surface material.

Therefore, we conducted surface tests, box tests, and fire protection tests on both boards, and the results were as follows: JIS-
^-1301 Fire protection test method for wooden parts of buildings, outdoor 2
grade heating.

@: Surface test of JIS-A-1321 quasi-nonflammability test.

○: Box test What has been described above is only one embodiment of the board according to the present invention, and Figures 4 (a) to (f) and Figure 5 +al to tel
It can be formed as shown in . In addition, in FIG. 4, 18 is a caulking material, and in FIG. 5, 19 is a sheet-like material.

As described above, the board according to the present invention has the characteristic that a board using foam can pass a quasi-inflammability test, a box test, and a fire protection test.

In addition, manufacturing is almost the same as before, the form is either a single item or something close to it, and it has the characteristics of being able to be produced in large quantities. Furthermore, the heat insulation, strength, and corrosion resistance are greatly improved compared to the previous model, and there is no cost increase.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a perspective view showing an example of a siding board according to the present invention, Fig. 2 is a perspective view showing a surface material that is the main part thereof,
Figure 3 is an explanatory diagram showing the connected state of the boards mentioned above, and Figure 4 (
a) to (f) are cross-sectional views showing other examples of surface materials;
FIGS. 5(a) to 5(C) are explanatory diagrams showing other embodiments of the siding board. Top... Surface material, 8a... Guide tongue piece, 15... Plastic foam, 16... Back material. Kun / Kuchi-ni Z diagram

Claims (1)

[Claims] (1) A main body formed with a concave cross section from an elongated decorative surface and a side wall whose both side edges parallel to the longitudinal direction of the decorative surface are bent inward, and a male formed at the lower end of both side walls of the side wall; A surface material consisting of a female type connecting part, a plastic foam integrally filled with the main body part of the surface material, and bulging downward from the male and female type connecting parts, and the exposed surface of the foam is removed from a sheet-like material. In the siding board covered with a back material made of The reinforcing piece extends to the upper end of the side wall and has a guide tongue whose tip is bent outward, and the female connecting part is formed by bending the lower end of the other side wall of the main body inward in a U-shape. An engagement groove into which the male connecting part is inserted, an extension part whose lower end projects outward horizontally, a protrusion drilled in parallel with the side wall in the middle, and a tip of the extension part bent outward. What is claimed is: 1. A siding board comprising a tongue piece, and wherein the backing material is made of a sheet-like material having fire retardant properties.