JPS6011231Y2 - siding board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a siding board that is used to form the outer walls or roofs of buildings and structures by a dry method and is highly fire and heat resistant.

In particular, the present invention relates to a siding board that has improved fire resistance and heat resistance at joints and can pass fire protection construction.

An embodiment of the siding board according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing the above-mentioned board. The main body 1 has a square or rectangular decorative surface 1a, and is made of a moldable plate such as a thin metal plate.

Reference numeral 2.degree. 3 denotes side walls, which are formed by bending both ends of the main body 1 vertically or at an angle (not shown), and the edges of the side walls 2 protrude outward to form a male connecting portion 4.

The male connecting portion 4 consists of an insertion edge 5 and a tongue piece 6 whose tip is bent as shown in the figure or to the opposite side (not shown).

Reference numeral 7 denotes a female connecting part, which bends the edge of the side wall 3 inward in a U-shape to form an insertion groove 8, and extends its lower edge 9 further outward to form an extension part 10, and an extension part 10 in the middle thereof. It consists of a protrusion 11 provided parallel to the side wall 3, and a tongue piece 12 with the tip of the extension part 10 bent outward.

Note that the protrusion 11 strengthens the airtightness of the part when the male and female molds are connected, and also functions as a drainer.

Reference numeral 13 denotes a synthetic resin foam (hereinafter simply referred to as "foam") formed in the gutter-like part formed by the main body 1 and the side walls 2 and 3, and a foam 13a, an insertion edge 5, and a bulge below the back surface of the extension part 10. In particular, the insertion edge of the bulge 13b has a notch 14 so that the bulge including the extension 10 can be fitted thereinto.

Further, the foam 13 mainly functions as a heat insulating material, an adhesive, a lightweight raising material, a cushioning material, a sound absorbing material, and a non-moisture absorbing layer.

The materials include polyisocyanurate foam, phenol foam, and polyamide foam.
It mainly manufactures foams from raw materials.

15 is a waterproof sheet with a notch 14 in the form 13
At the same time, it covers the exposed portion of the bulging portion 13b and a portion of the back surface of the insertion edge 5, and is attached integrally thereto.

The material of this sheet 15 may be a waterproof sheet laminated with one or more types of non-woven fabric such as asbestos paper, kraft paper, gypsum paper, synthetic resin film, metal foil (aluminum, lead), glass cloth, or any of these sheets. This is a waterproof sheet whose outer surface is coated with a fungicidal agent such as metal soap, phenylacetic acid, mercury, phenol compounds, aniline derivatives, benzimidazole derivatives, sulfur compounds, and sanicilanilide.

Further, as the waterproof sheet 15, a sheet coated with polyethylene resin, a flocked sheet, or the like is used.

Reference numeral 16 is a firebreak, in which a non-combustible felt-like material 17 is impregnated with a foamable inorganic material 18 that emits crystal water at high temperatures and gradually expands to form an inorganic foam layer.

This firebreak 16 is intended to strengthen the fire and heat resistance of the joints, which are the weakest points in the fire prevention test (JIS-A-1301), and to make the siding material capable of passing the above test. be.

To explain further, the felt-like material 17 serves as a reinforcing material and a core material when an inorganic foam layer is formed, and is made of, for example, rock wool, asbestos, glass fiber, etc.
r! It is a band-like material with a density lowered by about n.

The foamable inorganic material 18 is made of one or more of borax, sodium metaborate, sodium silicate, sodium metasilicate, sodium orthosilicate, sodium metaphosphate, and the like.

Next, an example will be explained.

Now, the main body 1 is a 0.27m+y+ color iron plate,
Form 13 is polyisocyanurate foam,
Density: 40 ko/lre, waterproof sheet 15 is asbestos paper (0.1 m) laminated with aluminum foil (0.1 mm), firebreak 16 is asbestos band (thickness: 5 mm) with sodium metaborate. A material impregnated with 3f/aft was used.

The total thickness of the form 13 is 25rIrIR1, and the thickness Hl of the bulging portion 13b is 1677EI11. Peel from the innermost part of the insertion groove 8 to the tongue piece 12 side.

= 32mm, from tongue piece 6 to notch 14 Ls =
Group 32, length of notch Δl = 15 mm, side wall 3
L2 = 13 mm from to the deepest part of the insertion groove 8.

Therefore, the siding board with the cross section shown in Figure 1 was
As shown in the figure, it was fixed to the trunk rim 19 via nails 20.

The test results for this structure were that the temperature on the back surface was 230° C., especially at the joints, 180° C., there was no afterflame, there was no residual dust, there was no ignition on the back surface, there was no deformation, destruction, or falling off, and it satisfied the acceptance criteria.

What has been described above is only one embodiment of the present invention;
A firebreak 16 can also be provided as shown in Figures a and c.

As described above, the siding board according to the present invention has the characteristics of being lightweight, fireproof and heat resistant, and exhibiting heat insulating properties even under normal conditions and high temperatures.

In addition, when forming walls, etc., fireproofing of joints at the weakest point,
The heat resistance can be reliably improved due to the presence of the firebreak 16, and it has the characteristics of passing a fireproof structure test.

Furthermore, it has the characteristics that the foaming ratio of the synthetic resin foam can be improved, and the amount used can be reduced, so that it can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the siding board according to the present invention, Fig. 2 is an explanatory drawing showing an example of construction of the siding board, and Fig. 3 a''-c are explanatory drawings showing other embodiments. Yes. 1...Main body, 13...Synthetic resin foam, 16...Firebreak.

Claims (1)

[Scope of utility model registration request] A male connecting portion consisting of an outwardly protruding insertion edge is provided on one side edge of the main body having a square or rectangular decorative surface, and an insertion groove and the insertion groove are provided on the other side edge parallel to the side edge. In this siding board, a female connecting part has a protruding extension part extending the lower edge of the main body outward, and a gutter-shaped part surrounded by the main body and two side edges is formed with a synthetic resin foam that becomes carbide at high temperature. , the synthetic resin foam is made to protrude downward from the back surface of the insertion edge, and is also formed on the back surface of the extension part to provide a bulging part, so that the extension part fits into the insertion edge side of the bulge part. The notch, the two exposed surfaces of the synthetic resin foam in the notch and the back of the bulge are covered with a waterproof sheet, and the side of the bulge at the end of the extension and the space between the back of the extension and the synthetic resin foam are covered with a waterproof sheet. A siding board characterized by an integral firebreak made of a nonflammable felt-like material impregnated with a foamable inorganic material that gradually expands by releasing crystallized water at high temperatures.