JPH028976Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a construction panel that is useful as an interior and exterior wall material and has fire retardant and heat insulating properties. Recently, panels for exterior wall materials, etc. have high mechanical strength,
○B High insulation properties, ○C Flame retardancy (fire and heat resistance as a quasi-noncombustible material and fireproof structural member), ○D Light weight.
○E High productivity (mass production possible) with fewer steps, ○Low cost, ○E ease of driving nails, etc. are required. However, there are properties that are incompatible with the above requirements, such as ○Ro and ○C, ○B and ○D, ○Ho and ○Ha, ○Ha and ○H, etc., and measures to improve these characteristics are being intensively studied. However, no practical product has yet appeared. In order to meet these demands, the present invention uses a synthetic resin foam as the core material of the panel to serve as a carbonized layer, and also adds foam to the joint area, which is the weakest point of the panel, the so-called extension bottom surface, and the side wall of the male connection part. A fireproof layer is provided in which porous inorganic grains are integrally bonded with a foamable inorganic material, which greatly improves fireproofing properties, maintains high thermal insulation properties, and also improves nailing performance by hardening the layer on the bottom of the extension. We propose an architectural panel with improved features. An embodiment of the architectural panel 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 panel, and 1 is a surface material, which includes a square or rectangular decorative surface 1a, side walls 2 and 3 formed on both side edges of the decorative surface 1a, and a male surface material provided on the side wall 2 side. The mold connecting part 4 and the female mold connecting part 7 provided on the side wall 3 side
The cross section is approximately gutter-shaped. The surface material 1 is made of a moldable plate such as a thin metal plate. Side walls 2 and 3 are decorative surfaces 1a
Both ends of the side wall 2 are bent vertically or at an angle (not shown), and the edge of the side wall 2 protrudes outward to form a male connecting portion 4. The above male connection part 4
It 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). The female connecting part 7 has an insertion groove 8 formed by bending the edge of the side wall 3 inward in a U-shape, and an extension part 10 that extends the lower edge 9 further outward, and a side wall part in the middle thereof. 3 and a tongue piece 12 that is bent upward at the tip of the extension part 10. Note that the protrusion 11 is provided as necessary, and can also be made to protrude in the opposite direction to that shown in the figure. In particular, the protrusion 11 has the function of airtightness and draining when the male and female type connecting parts 4 and 7 are connected. 1
3 is the core material, the gutter-like part of the surface material 1, and the side wall 2
It is filled so as to protrude from the back surface of the extension part 10 except for the range Δl from . To explain further, the core material 13 is composed of synthetic resin foam (hereinafter simply referred to as foam) 13a, 13b and a fireproof layer 14. This form 13a,1
3b mainly functions as a heat insulating material, an adhesive, a lightweight raising material, a cushion material, a sound absorbing material, and a non-moisture absorbing layer. It consists of a foam 13b (indicated by diagonal lines).
The materials include polyisocyanurate foam, phenol foam, vinyl chloride foam, etc., which form a carbonized layer under high heat, and the foams 13a and 13b are mainly produced from liquid raw materials. As shown in Fig. 1, the form 13b is formed with a width of W ₂ or W ₃ in the part excluding Δl compared to the width W ₁ of the gutter-like part, and is mainly used for insulation and cushioning. This is useful for insulating thermal bridges such as the surface material 1 and the rim that are exposed to the outside air. The fire protection layer 14 is on the lower surface of the extension part 10.
It is formed over a width of W ₄ or W ₅ and in a range of △l of the gutter-shaped portion of the surface material 1 surrounded by at least the side wall 2, the decorative surface 1a, and the cutout portion 4a. . This is to surround the flame inflow path at the joint, which is the weakest point, with the fireproof layer 14 when forming the wall to prevent flame from flowing into the wall base. The fireproof layer 14 is made by melting, bonding, and hardening one or more of the inorganic porous particles 15 and the foamable inorganic material 16 to form an integrated structure. The inorganic porous particles 15 are pearlite particles, shirasu balloons, calcined vermiculite, etc., and the foamable inorganic material 16 contains crystal water and releases moisture when exposed to high heat, gradually foaming and expanding. The inorganic foam layer is formed by melting one or more types of borates, silicates, etc., and bonding the inorganic porous particles 15 when the melt hardens. Specific examples include borax, sodium metaborate, water glass, and sodium metasilicate. In addition,
The blending ratio of the inorganic porous particles 15 and the foamable inorganic material 16 is approximately 1:5 based on water resistance, durability, and fire resistance.
(weight ratio). Of course, the ratio can be changed arbitrarily depending on the purpose and use. Furthermore, the fireproof layer 14 includes inorganic porous particles 15
and the foamed inorganic material 16 are combined and hardened, so the fireproof layer 14 provided at the bottom of the extension part 10 serves as a reinforcing material when the panel is fixed by nailing.
Deformation of the extension part 10 is prevented, the connection of the panels is made waterproof, and springing during nailing is prevented, so that nailing can be easily performed. A waterproof sheet 17 covers the exposed surface of the core material 13. The material for the waterproof sheet 17 is a waterproof sheet laminated with one or more of asbestos paper, kraft paper, gypsum paper, synthetic resin film, metal foil, nonwoven fabric, etc., or the outer surface of these sheets. These are waterproof sheets whose surfaces are coated with antifungal agents such as metal soap, phenyl acetic acid, mercury, phenol compounds, aniline derivatives, benzimitazole derivatives, sulfur compounds, and sanicil anilide. Further, as the waterproof sheet 17, a sheet coated with a polyurethane resin, a flocked sheet, etc. can also be used. Next, a specific example will be briefly explained. Now, assume that two panels as shown in Figure 1 are manufactured according to the following specifications, and a construction panel with a total thickness of 25 mm is manufactured. In other words, as the surface material 1
0.3mm thick colored galvanized iron plate, form 13a, 13
B is a raw material for polyisocyanurate foam, the so-called polyol is AZ system (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.) with a molecular weight of 600, a hydroxyl value of 600, and a functional group number of 4, and crude MDI in a liquid ratio of 100:210.
and 1.5 parts by weight of ethylenediamine (Dabco) was added as a trimerization catalyst to W ₁ = 300
mm, discharged into a gutter-like part with depth h = 10.0 mm, thickness H =

[Table] What has been described above is only one embodiment of the construction panel according to the present invention, and a fireproof layer 14 may also be provided as shown in FIG. 2. In addition, the extension part 10
The ends can also be formed as shown in Figures 3a-g. That is, Figure A shows a case in which one end edge 17a (hereinafter simply referred to as the edge) of the waterproof sheet 17 is provided so as to cover part of the outer circumference of the tongue piece 12, and Figure B shows a case in which the end edge 17a is simply folded double. If stacked,
Figure c shows the case where the edge 17a is formed in a wavy shape, figure d shows the case where the edge 17a is provided so as to reach the protrusion 11, and figure e shows the case where the fire protection layer 14 is partially protruded in the direction of the tongue piece 12. If the edge 17a covers the surface including the
When the adhesive 18 is provided on the tongue piece 12, Fig. g shows the case where the end edge 17a is wrapped around the tongue piece 12. As mentioned above, the construction panel according to the present invention reduces the amount of core material used, has excellent mechanical strength and insulation properties at room temperature and high temperature, and has excellent heat resistance at the joints in the event of a fire. It is characterized by being semi-inflammable because the flame inflow path is surrounded by a fireproof layer.
In addition, since the attachment part is harder than the foam itself, there is no bounce when nailing, making it easier to drive the nail, which greatly improves workability.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the construction panel according to the present invention, Fig. 2 is an explanatory diagram showing another embodiment of the construction panel according to the invention, and Figs. 3 a to g.
FIG. 3 is an explanatory diagram showing another embodiment of the extension portion of the construction panel according to the present invention. 1...Surface material, 13a, 13b...Synthetic resin foam, 14...Fireproof layer, 15...Inorganic porous particles,
16... Foaming inorganic material.

Claims (1)

[Scope of utility model registration request] A square or rectangular decorative surface, side walls provided on both side edges of the decorative surface, a male connecting portion consisting of an insertion edge protruding outward from the lower end of one of the side walls, and a male connecting portion at the tip of the other side wall. A surface material having a substantially gutter-like cross section is formed from the insertion groove and a female connecting portion having an extension portion extending outward from the lower edge of the insertion groove, and a core is attached to the gutter-shaped portion of the surface material. At the same time, the core material is made to protrude downward from the back of the extension part of the female joint part in the entire area except for the range of Δl on the male joint part side, and the exposed surface of the core material is covered with a waterproof sheet. In the ivy construction panel, at least a core material portion covering a width of Δl of the side wall on the side of the male connecting portion and a core material portion on the back side of the extension portion are made of a fireproof layer composed of inorganic porous particles and a foamable inorganic material. An architectural panel characterized in that the other parts are made of synthetic resin foam.