JPS6011230Y2 - siding board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a siding board (hereinafter simply referred to as a board) that exhibits heat resistance and heat insulation properties and is useful as an exterior material, roofing material, and interior material.

In particular, the present invention relates to a siding board in which a concavo-convex pattern is applied to the substrate, and a portion of the pattern has a void on the back side, thereby making the radiation function effective and improving the heat insulation properties under normal and high temperature conditions.

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 a board, in which 1 is a base material, a metal flat plate 2 and an aluminum foil 3 are integrally formed via an adhesive 4, and the outer shape is rectangular with a small gap 5 corresponding to the convex part. , or a rectangular composite structure.

To explain further, the metal flat plate 2 is shown in Fig. 2 a, b, c.
As shown in the figure, the depth H is created by embossing, pressing, etc.
is 0.3 to 2.07 IrIn1 is formed over the entire surface so that the cross section is uneven 2a, 2b and the top surface 2c is flat.

Note that the pattern and distribution state of the uneven portions 2a and 2b are random.

The aluminum foil 3 has a thickness of 30 to 100 microns, and is stretched and integrally attached to the back surface of the flat metal plate 2 via an adhesive 4 as shown in FIGS. 2a and 2c.

That is, Figures a''-c show the case where the aluminum foil 3 is bonded to the entire back surface of the flat metal plate 2 processed to have an uneven cross section, with a thin layer of adhesive 4 interposed therebetween, and Figure b shows the case where the aluminum foil 3 is bonded to the entire back surface of the flat metal plate 2 processed to have an uneven cross section. This is a case where the adhesive 4 is interposed only on the flat part of the back surface and the parts are integrated.

A specific example of the former cases a and c is a case where a sheet-like material made by laminating a polyethylene film onto an aluminum foil 3 is laid on the back surface of a flat metal plate, and then integrated by heat fusion.

In addition, in the latter example, adhesive 4 is simply applied to the back surface of the recess 2a.
This is a case in which aluminum foil 3 is applied on top of the aluminum foil 3, and is smoothed with a roller to be integrated.

Furthermore, the gap 5 is a small gap in the sealed structure formed by the back surface of the convex portion and the back surface of the aluminum foil 3 when viewed from the surface.

This void 5 is effective for heat insulation, sound insulation, sound absorption, and radiant heat.

It is believed that this is because the presence of the void 5 directly affects the optical path length and frequency.

6 and 7 are side walls, 8 is a male type connection part consisting of an insertion edge 9 and a tongue piece 10, and 11 is a female type connection part with an insertion groove 12 and its lower edge 1.
It consists of an extension part 14 that extends outward from 3, a tongue piece 15, and a protrusion 16 provided as necessary.

17 is a synthetic resin foam (hereinafter simply referred to as foam), which is a polyisocyanurate foam that turns into a carbide at high temperatures;
Phenol form, etc.

The above-mentioned foam can be formed by two methods: (1) integrating the molded bodies with an adhesive; (2) supplying raw materials and reacting, foaming, and curing (apparently), and integrating by self-adhesive properties at that time. There are two types, and the latter is more preferable.

A waterproof sheet 18 is, for example, a synthetic resin film, metal foil, asbestos paper, kraft paper, gypsum paper, or a sheet made of nonwoven fabric subjected to waterproof treatment.

Note that two or more types of the above sheets can also be laminated.

Next, an example will be explained.

Now, when a board is formed in the cross section shown in FIG. 3a, the base material 1
The metal flat plate 2 as a material is a colored iron plate of 0.27 m+s, the ratio of uneven parts is 1:1, the depth is 0.5 mm, the thickness of the aluminum foil 3 is 0.1 rrrm, and the adhesive 4 is a polyethylene sheet (thick A structure with a cross section shown in FIG.

The foam 17 is polyisocyanurate foam (bulk specific gravity 0.13 mm), and the waterproof sheet 18 is a sheet made of aluminum foil of 0.1771771 and laminated with asbestos paper of 0.1 mm, with the aluminum foil side facing the base material side. Form into one piece.

The size of the board is Ho as shown in Figure 3a.
” 25mm, Ht = 15mm, H2 = 8rr
rm, H3=7 NIt, Lo=32rrr
m, L, = 20 slope, L2 = 18 mm.

Therefore, the above board was made into a wall and JIS-A-130
1 (Outdoor fire protection class 2, heating time 30 minutes, maximum temperature 840℃
) tests were conducted.

As a result, the maximum temperature reached 225°C 15 minutes after heating in some places, and was below 200°C in other places.

Further, no deformation, falling off, or destruction was observed.

Furthermore, there was no backside flame, afterflame, residual dust, ignition, or harmful smoke.

Therefore, it has passed the fire protection performance test for fire protection structure stipulated in No. 2 of Ministry of Construction Notification No. 2545 in 1938.

On the other hand, as a comparative example, the same test as above was conducted using a simple embossed metal plate as the base material 1.

As a result, the back surface temperature was 280 degrees Celsius at one point, and smoke generation increased rapidly, causing the room to become filled with smoke.

Therefore, this board was rejected.

This is because the structure of the base material 1 greatly contributes to heat radiation, lowering the back surface temperature by about 40 to 60 degrees Celsius, and making the passage of heat to the foam 17 uniform due to heat radiation, preventing a sudden increase in smoke generation due to uneven heating. This is probably because it was possible.

What has been described above is only one embodiment of the present invention, and well-known thermal radiators may be evenly distributed in the foam 17.

The waterproof sheet 18 can also be coated with a fungicide such as metal soap, phenylacetic acid, mercury, phenol compounds, aniline derivatives, benzimidazole derivatives, sulfur compounds, and sanicil anilide.

It is also possible to form a foam 17 as shown in FIG. 3a.

Furthermore, as shown in FIG. 3, the aluminum foil 3 can be provided not on the entire surface of the metal flat plate but only on the part shown in the figure.

Furthermore, although not shown, the base material 1 can also be used as a mere raw material, a so-called composite structure metal plate.

As mentioned above, according to the board according to the present invention, by using a heat radiation structure that is effective at high heat, the original heating temperature can be reduced to about 3
It has the feature that it can be lowered by 0 to 60'C.

@Thermal radiation makes heat conduction to the foam homogeneous, produces less smoke, and greatly suppresses cracks and shrinkage deviations caused by uneven heating, and in particular, eliminates the occurrence of cracks.

0 sound insulation and sound absorption are greatly improved due to the formation of voids 5 and the laminated structure of foreign materials.

A feature is that the raw material of the form 17 does not have a negative effect on the metal flat plate 2.

■Since the foam supply surface is smooth and flat, it is easy to disperse and spread the foam raw material, and it is characterized by low cost and high efficiency production.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a siding board according to the present invention, FIGS. 2 a to C are explanatory views showing an enlarged part of the base material of the board, and FIG. 3 a. C is an explanatory diagram showing another embodiment. 1...Base material, 2...Metal flat plate, 3...
...Aluminum foil, 4...Adhesive, 5.
...Void, 17...Synthetic resin foam.

Claims (1)

[Scope of utility model registration request] Depth 0.3 to 2. - A random uneven pattern with a flat top surface is applied, and aluminum foil with a thickness of 30 to 100 microns is stretched over the entire surface of the back surface of the flat metal plate, and an adhesive is provided at least on the back surface of the recessed portion. A male insert edge is formed by bending both edges of a rectangular or square base material integrally through the aluminum foil with a gap between the rear surface of the convex part and the aluminum foil, and having one end of the base material protrude outward. A female type connection consisting of an insertion groove formed to form a type connection part, the other end of which is bent inward and protrudes outward, and an extension part that extends the lower edge of the insertion groove outward. A siding board characterized in that a synthetic resin foam that becomes carbide at high temperatures is integrally formed on the back surface of the base material and the back surface of the foam is covered with a waterproof sheet.