JPH044442Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a siding board (hereinafter simply referred to as a board) useful as an exterior material for buildings and structures. In particular, it can pass the semi-flammability test, box test, and fire protection structure test,
This relates to a board with excellent insulation and productivity. A considerable number of boards of this type are on the market, in which a heat insulating material, particularly polyurethane foam or polyisocyanurate foam, is filled between the front and back materials. However, due to new fire safety regulations, a board using only the above foam will not be able to pass any of the tests.
Therefore, for example, instead of polyisocyanurate foam, boards made only of phenol foam, boards made of gypsum board and polyisocyanurate foam, or composite boards of polyisocyanurate foam and rock wool board have also been proposed. However, a board using a core material consisting only of resol type phenol foam has been difficult to use alone because the phenol foam lacks adhesive properties and is brittle. In addition, boards that are simply composites of gypsum boards or rock wool boards and polyisocyanurate foam, etc. are heavy and expensive, and have the disadvantage of lacking productivity. Furthermore, a board that is a composite of polyisocyanurate foam A (hereinafter simply referred to as foam) and a noncombustible material B such as the above-mentioned gypsum board or rock wool board has the above-mentioned foam A on the back side of the surface material C, as shown in FIG. is discharged as a raw material, and the non-combustible material B is placed on top of it at a position deviated by a width of Δl from the foam A. Because of the laminated structure, the non-combustible material B is unstable until the foam A foams considerably. The foam was placed under such conditions that the reaction and foaming of the foam A were inhibited, and furthermore, there was no part to serve as a guide for determining the position of the noncombustible material B, and the position of the noncombustible material B was not properly determined.
There were disadvantages such as poor productivity, lower yield, and leakage of the foam A to the outside. In order to eliminate these drawbacks, the present invention has a shape in which the opening of the recess in the surface material is closed with a phenol foam plate, and a guide piece and a receiving piece are provided on the male connecting part, so that the phenol foam plate can be easily and reliably closed. When forming a fire-retardant foam that can be easily positioned and placed on the back surface of the surface material without any fluctuation, and that is highly productive, and that the fire-retardant foam does not leak to the outside. By fixing the phenol foam board together with its self-adhesive properties, the use of adhesives is reduced and strength is improved.Furthermore, at least the back side of the phenol foam board is coated with a backing material that has fire retardant properties, thereby reducing the brittleness of the phenol foam board.
It suppresses water absorption and unusual color appearance, and also improves the adhesive strength between the phenol foam board and the surface material.
Furthermore, the present invention proposes a board with fireproof performance and light weight that can pass the three tests mentioned above. An embodiment of the board according to the present invention will be described in detail below with reference to the drawings. FIG. 2 is a perspective view showing a typical example of the board. In the figure, 1 is a surface material, 8 is a guide piece, 9 is a male connector, 13 is a female connector, 16 is a fire-retardant foam (hereinafter simply referred to as foam), and 17 is a phenol foam plate (hereinafter, referred to as foam). 19 is a fire-retardant back material (hereinafter simply referred to as a back material). To explain further, the surface material 1 is formed by forming a flat plate or an embossed thin metal plate as shown in FIG.
and side walls 3 and 4 whose both side edges are bent inward at a right angle or at an arbitrary angle to form a concave portion 5,
The lower end edge of the side wall 3 is bent inward and outward again to provide an insertion edge 6, the tip of the insertion edge 6 projects inward, and the tip is further folded back by W ₁ to form a receiving piece. 7, the tip of which is bent vertically downward by h, and a male connecting part 9 with a protruding guide piece 8, and a U formed by bending the lower edge of the side wall 4 inward and protruding outward again. It is composed of a female connecting part 13 provided with a letter-shaped engagement groove 10 and an extension part 12 whose lower edge 11 protrudes outward. Note that the female connecting portion 13 may be provided with a protrusion 14 and a tongue piece 15 if necessary. To explain further, the recessed portion 5 has an opening width of W ₂ formed by the receiving piece 7 and the engagement groove 10 mutually extending from the lower ends of the side walls 3 and 4;
Form plate 17, receiving piece 7, lower edge 11, extension part 1
The size is such that it can be placed on the back surface of the 2. This is to prevent the foam plate 17 from falling into the space of the concave portion 5 and to support it in a stable state when the foam 16 is discharged in the raw material state. Further, since the recessed portion 5 has a rectangular cross section, the raw material of the foam 16 does not leak outside from other than the opening portion during reaction and foaming, and functions as a mold material. Furthermore, the receiving piece 7 reinforces the insertion edge 6, and the form 16 is attached to the side wall 3.
This is to prevent gas and smoke generated from the foam 16 from leaking from the lower end of the foam plate 16, and to place one end of the foam plate 17 thereon.
Further, the guide piece 8 is used to easily determine the placement position of the form plate 17 when placing the form plate 17, and by simply aligning the end of the form plate 17 with the guide piece 8, the form plate can be placed. 17 is determined. In addition, the guide piece 8 together with the receiving piece 7 increases the adhesion area between the surface material 1 and the foam board 17, so that the foam board 17 reliably closes the concave portion 5 and the foam 1
6 to further prevent leakage of smoke and gas generated under high heat, and prevent flashover.
16 is foam, mainly fireproofing material, insulation material, lining material,
It functions as a cushioning material, a waterproofing material, a moisture-proofing material, and an adhesive.The raw material is discharged into the concave portion 5, reacted and foamed, and formed into the surface material 1 and the foam plate 17.
are fixed together by self-adhesive properties during foaming. Specific examples include polyisocyanurate foam, nurate-modified polyurethane foam, polyphenylene foam, long and short glass fibers, carbon fibers, powdered (including fine powder) aluminum, hydroxide Alumina, aluminum phosphate, bentonite,
Glass, carbon black, limestone, lithium hydroxide, activated alumina, calcium bicarbonate, calcium carbonate, diatomaceous earth, vermiculite, quartz (flint), asbestos, kaolin clay, mica, talc, wollastonite, silicic acid (white carbon) , aluminum silicate, calcium silicate, hydrated calcium silicate, calcium sulfoaluminate, gypsum, silica, silica gel, magnesium hydroxide,
graphite powder, slate powder, sericite, barite, waxite clay, attapulgiaite, potassium feldspar, soda feldspar, barium feldspar, phenolform powder, alumite, antimony trioxide, xonotrite, tobermorite, or pearlite grains, shirasu balloon , alumina bulbs, glass particles, well-known flame retardants, etc., in an amount of 5 to 200 parts by weight based on 100 parts by weight of the raw material of Form 16. Note that this type of additive may be surface-treated with a surfactant.
In particular, it is preferable that this foam 16 forms a carbonized layer under high heat. The foam board 17 may be any of the resol type, novolac type, and benzilik type phenol foam, and is made of a single substance or one or more of the above-mentioned inorganic fibers, inorganic powders, lightweight aggregates, etc., and has a density. is 30-100Kg/m ^3rd place, thickness T is 5th
~50mm, width 180~900mm, length 1800~7272mm
It is a molded body spaced apart from the side wall 3 by l ₁ and placed on the receiving piece 7, and forms a recess 9a for connection. Note that the recessed portion 9a is formed to ensure that the back surfaces are flush with no gaps when the boards are connected, and to allow the foam board 17, which has good dimensional stability even under high temperatures, to cover the entire base. This is provided so that a form plate 17 (not shown) is also present at the bottom. To explain in more detail, the placement position of the foam plate 17 is determined by the guide piece 8 after the foam raw material is discharged, and the receiving piece 7, the engagement groove 10, the extension part 1
Since it is supported by and placed on 2, it has the feature that it can be placed easily and in a stable state. Further, the thickness T of the foam plate 17 and the height h of the guide piece 8 have a relationship of T≧h. The adhesive 18 is a backing material 19 which will be described later.
and for adhering the surface material 1 to the foam board 17. Examples include rubber-based materials, starch-based materials, synthetic resin-based materials, and inorganic materials with fire retardant properties. Note that FIG. 2 shows a board in which adhesive 18 is interposed on the entire exposed surface of the form board 17, the lower edge 11, the back surface of the extension part 12, the surface of the receiving piece 7, and the inner surface of the guide piece 8. . Back material 19
The exposed surface of the foam plate 17 is coated with an adhesive 18, and is mainly used for fire prevention, waterproofness, weather resistance, aesthetics, improving the mechanical strength of the panel, and reinforcing the brittleness of the foam plate 17. It is something. The materials include, for example, kraft paper, asbestos paper, waterproofed kraft paper, waterproofed asbestos paper, metal foil (Al, Pb, Cu), glass fiber nonwoven fabric, synthetic resin sheet, and laminates of one or more of these. It consists of a sheet-like material that has been vapor-deposited.
In FIG. 2, the back material 19 is connected to the entire exposed surface of the foam board 17, and the guide piece 8 and the foam board
It is attached to the middle. Next, the fire retardancy of Examples and Comparative Examples will be explained. First, the embodiment is a board having the shape shown in FIG. 2 and having the following configuration. That is, a 0.27 mm thick color steel plate, form 16, is used as surface material 1 .
The foam plate 17 is made of polyisocyanurate foam (density after filling is 30 kg/m ³ ), and the foam plate 17 is made of resol type phenol foam with a density of 50 kg/m ³ .
= 15 mm, adhesive 18 is vinyl acetate adhesive, backing material 19 is aluminum foil (thickness 7
micron) laminated onto asbestos paper (70g/m2 ⁾ . In addition, the width W ₁ of the receiving piece 7 is 10 mm.
And so. In addition, the comparative example has the shape shown in Fig. 1, and the materials are the same as in the examples, A is polyisocyanurate foam, noncombustible material B is a phenol foam board, surface material C is a 0.27 mm thick color steel plate, and the back material is The same material as in the example was used, and the backing material and the noncombustible material B were bonded together using a vinyl acetate adhesive. [Table] [Table] What has been described above is only one embodiment of the board according to the present invention, and the board may also be formed as shown in FIGS. 4a-k and 5a-o. That is, FIGS. 4a to 4k show modified examples of the surface material 1 , which can be formed for any purpose. Also, Figure 5 a to o
1 shows other examples of various structures such as the male type connecting part 9 and the female type connecting part 13 , and a to
Figure e shows a board with caulking agent 20 planted in each position, and figure f shows the backing material 19 covering the end of the extension 12 up to the upper surface, and caulking agent 20 applied to the tip.
Figure g shows a board in which the back surface of the form board 17 is covered with the back material 19 and then protrudes outward from the female connecting part 13 by ΔW, and Figure h shows the back surface material 19.
After covering the back side of the form board 17 with the board, it protrudes outward from the female connecting part 13 by ΔW, bends inward again, and then covers the side surface of the form board 17. A board that protrudes from the edge of the mold connecting part 13 and covers the exposed surface of the form board 17 with a back material 19. In figure J, the back material 19 covers the exposed surface of the form board 17, the guide piece 8, the receiving piece 7, and the bottom. A board that also covers the contact surface with the edge 11 and the extension part 12; FIG. Figure l shows a board in which the exposed surface of the form board 17 is covered with a backing material 19 and the outer surface of the guide piece 8 is covered, and figure m shows a board with fire-retardant paint 22 on the front or back side (not shown) of the insertion edge 6. Figure n shows a board with fire protection paint 22 applied to the front or back side (not shown) of the extension part 12. Figure o shows a decorative groove 2a provided on the decorative surface 2, and a form is also formed on the back side of the decorative groove 2a. This is a board that supports the plate 17. Note that the adhesive 19 is omitted in FIGS. 5a to 5o. Of course, it is also possible to create a board that combines each of FIGS. 5 and 6. As mentioned above, according to the board according to the present invention,
The back side of the board is covered with a phenol foam board that has excellent fire resistance, heat insulation, and low smoke emission, and has a sufficient carbonized layer and excellent dimensional stability even under high heat. The space blocked by the foam board is filled, and the phenol foam board is bonded to the surface material, the lower edge, the extension part, the receiving piece, and the guide piece to completely occlude the foam, so flammable gas and smoke can be prevented. It has the feature of preventing the leakage of water to the outside and passing fire prevention tests, quasi-noncombustibility tests, and box tests. Furthermore, the brittle phenol foam board is sandwiched between the backing material and the plastic foam and bonded together, providing sufficient protection and allowing effective use of its original properties. Furthermore, the phenol foam is supported by the receiving piece and the lower edge of the engagement groove, and the guide piece provided at the end of the male connector allows the phenol foam plate to be placed easily and stably. Because the surface material and the phenol foam plate form a mold that is closed in the longitudinal direction, there is no leakage of the fire-retardant foam to the outside, and even if there is insufficient foaming or insufficient discharge volume, the product will not immediately become defective.
It has the characteristics of high efficiency and high yield production.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a conventional siding board, Fig. 2 is a perspective view showing an embodiment of the siding board according to the present invention, and Fig. 3 is a surface that is a constituent material of the siding board according to the present invention. Perspective views showing one embodiment of the material, Figures 4a-k, Figure 5a
-o are explanatory diagrams showing other embodiments. 1 ... Surface material, 7... Receiving piece, 8... Guide piece, 16... Fire retardant foam, 17...
Phenol foam board, 19... Back material with fire retardant properties.

Claims (1)

[Scope of utility model registration request] A rectangular decorative surface and both ends of the decorative surface are bent inward to form two side walls with a concave cross section, one edge of the side wall protrudes outward and its tip is bent inward. , is extended, protrudes inward from the side wall, has its tip folded back by W ₁ , and has its tip bent vertically downward to form an insertion edge, a receiving piece, and a guide piece. bend the edge inward,
A surface material that is provided with a female-shaped connecting portion that protrudes outward again to form an engagement groove having a U-shaped cross section, and that has a lower edge of the engagement groove that protrudes outward to form an extension; A fire-retardant foam is discharged as a raw material into the concave part and filled by reaction and foaming, and by aligning one end of the foam with the guide piece on the back side of the foam, only l ₁ can be removed from the side wall on the male connector side. The phenol foam plate is laminated in the floating position and on the receiving piece, the lower edge, and the back surface of the extension part, and the position is determined by the guide piece, and at least the exposed surface of the phenol foam plate in the longitudinal direction is covered. the phenol foam board is laminated in the middle of reaction foaming of the fire-retardant foam, and the phenol foam board is adhered by the self-adhesive property of the fire-retardant foam. A siding board featuring