JPS6347227Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an architectural panel that is useful as an interior/exterior material, a roofing material, etc., and has flame retardancy and heat insulation properties.

Recently, panels for exterior wall materials, etc. have high mechanical strength,
○B High insulation properties, ○C Flame retardancy (fire and heat resistance as semi-noncombustible materials and fireproof structural members), ○D Light weight,
○ High productivity with fewer steps (can be mass produced), ○ Low cost, ○ Easy to drive nails, ○ , it is required to strengthen the engagement force of the connecting portion. However, there are properties that are incompatible with the above requirements, such as ○ro and ○ha, ○i and ○d, ○ho and ○ha, ○
There are C, O, F, etc., and improvement measures including these are being intensively researched. However, at present, no practical product has yet appeared.

In order to meet these demands, the present invention uses synthetic resin foam as the core material of the panel to serve as the carbonized layer, and inorganic porous particles are densely packed in the synthetic resin foam near the joints, which are the weakest points of the panel. It has dramatically improved flame retardancy and high thermal insulation properties, and its hardness makes it easier to drive nails (compared to synthetic resin foam alone, which has elasticity and is extremely difficult to drive nails to). We propose an architectural panel with improved bonding strength at joints.

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 the main body, which is rectangular;
Alternatively, it has a rectangular decorative surface 1a and is made of a moldable plate such as a thin metal plate. 2,3
is a side wall in which both ends of the main body 1 are bent vertically or at an angle (not shown), and the lower edge of the side wall 2 is bent inward at an angle of θ = 50 to 85 degrees, and the edge is bent outward. In addition to providing a holding and reinforcing protrusion 4 (hereinafter simply referred to as a protrusion) bent in a seam-like direction,
A male connecting portion 5 is formed by protruding outward. The male connecting portion 5 includes an insertion edge 6 that protrudes outward at a so-called angle θ along the projection 4, and a tongue piece whose tip is bent outward or bent inward (not shown). It is composed of 7. Reference numeral 8 denotes a female connecting portion, which is formed by bending the edge of the side wall 3 inward in a U-shape to form an insertion groove 9.
, the lower edge 10 of which is further extended outward to form an extension 11 , a protrusion 12 provided parallel to the side wall 3 midway, and a tongue piece 13 bent upward at the tip of the extension 11 . It is composed of Note that the protrusion 12 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 12 has the function of airtightness and draining when the male and female molds are connected. 14 is a synthetic resin foam (hereinafter referred to as
(simply referred to as a form) with the main body 1 and side walls 2, 3
It is used to fill the gutter-like part formed by the trough, and mainly functions as a core material, a heat insulating material, an adhesive, a lightweight raising material, a cushion material, a sound absorbing material, and a non-moisture absorbing layer. Examples of such materials include polyisocyanurate foam, phenol foam, vinyl chloride foam, etc., which form a carbonized layer under high heat.
Polyimide foam, etc., and the foam is mainly manufactured from raw materials. In addition, the foam 14 is a core material portion 14 filled in the gutter-like portion divided for convenience.
a, and a bulging portion 14b that protrudes downward from a portion including the back surface of the extension portion 11 except for the range Δl near the insertion edge 6. In particular, this bulging portion 14b (indicated by diagonal lines) is made of heat insulating material, cushion material,
Packing material and main body 1 exposed to the outside air
It is useful for insulating the thermal bridge between the body and internal structural materials such as the body rim. 15 is a waterproof sheet on 4 sides of form 14,
It covers the exposed surfaces of the two longitudinal sides and the two back surfaces of a so-called architectural panel. Materials for this waterproof sheet 15 include asbestos paper, kraft paper, gypsum paper, synthetic resin film, metal foil, nonwoven fabric,
Or a waterproof sheet laminated with two or more types, or the outer surface of these sheets is coated with antifungal agents such as metal soap, phenyl acetic acid, mercury, phenolic compounds, aniline derivatives, benzimitazole derivatives, sulfur compounds, and anti-fungal agents. This is a waterproof sheet coated with silanilide, etc. Further, as the waterproof sheet 15, a sheet coated with a polyurethane resin, a flocked sheet, or the like may be used.

Reference numeral 16 refers to inorganic porous particles, which are distributed in high density at least in the lower layer of the extension part 11 of the foam 14, and are highly effective for flame retardancy at joints when forming a wall and workability when installing panels (such as nailing). improve ease of use). To explain further, the inorganic porous particles 16 are lightweight, strong, and non-combustible aggregates, and specific examples include pearlite particles, shirasu balloons, and calcined vermiculite.

Next, examples will be described.

It is now assumed that a construction panel as shown in FIG. 1 is constructed on a rim A with construction panels α and β as shown in FIG. 2 via nails B. Therefore, in the construction panels α and β constructed in this way, the force received when the insertion edge 6 of the construction panel β is inserted into the insertion groove 9 is alleviated by the spring effect of the protrusion 4, and the form 14 Since the material is absorbed by the cushioning properties of the foam 14, it is possible to connect the main body 1 and the foam 14 without deforming the shape thereof and without peeling the main body 1 and the foam 14. In addition, in the architectural panel α, since the inorganic porous particles 16 are densely distributed in the lower part of the extension part 11, deformation of the extension part 11 can be prevented even when nails B are driven, and the connection part can be waterproofed. In addition, the nail B can be prevented from rebounding when driving the nail B, and the workability is improved. Furthermore, when the architectural panel β is fixed, the extension portion 11 is not deformed even by the pressing force from the insertion edge 6 and the protrusion 4, and deformation of the main body 1 can be prevented. The flatness of the decorative surface 1a is maintained and the height is the same, resulting in a beautiful appearance. Furthermore, JIS-A-1302 (Outdoor fire protection class 2 heating in the fire protection test method for non-combustible bases of buildings) was conducted on the wall body including the above-mentioned connecting portion. As a result, the maximum temperature on the back side was 342℃, afterflame,
There was no residual dust, no ignition on the back side, no harmful smoke, and the carbonized area on the back side was 90%. Therefore, this architectural panel met the above standards and passed the test. On the other hand, the construction panel in which the right end of the foam layer was not filled with pearlite particles had a back surface temperature of 370°C at the joint, and was rejected.

What has been described above is only one embodiment of the construction panel according to the present invention, and the inorganic porous particles 16 may be distributed as shown in FIGS. 3a to 3c. The ends of the extension can also be formed as shown in FIGS. 4a-g. In other words, figure a is waterproof sheet 1
When one end edge 15a (hereinafter simply referred to as the edge) of 5 is provided so as to cover the outer circumference of the tongue piece 13 halfway, Figure b shows the case where the end edge 15a is simply folded double, and Figure C shows the case where the edge 15a is simply folded double. When the edge 15a is formed in a wavy shape, Figure d shows a case where the edge 15a is provided so as to reach the protrusion 12, and Figure E shows a part of the form 14 protruding toward the tongue, and the surface including these is formed as an edge. When it is formed so as to be covered with the edge 15a, Figure F shows the case where the adhesive 17 is provided on the edge 15a shown in Figure A, and Figure G shows the case where the edge 15a is wrapped around the tongue piece 13. In addition, in the part where the inorganic porous grains 16 are present, boron,
One or more types of silicates (borax, sodium metaborate, sodium silicate), one or more types of fibrous materials (glass, rock wool, asbestos), and clay minerals can also be added. Furthermore, one or more of the above-described fibrous materials and clay minerals may be added to the entire foam 14.

As described above, according to the construction panel according to the present invention, the base of the insertion edge is reinforced with the protrusion and is inclined, so that elasticity is added to the connecting part,
It has a strong engagement structure and is characterized by improved waterproofness and heat insulation. In addition, the architectural panel becomes a carbonized layer under high heat, and has inorganic porous particles distributed at a high density in the bulges that form the base of the joints, so it can be used as a fireproof structural member. Furthermore, the lower surface of the extension is filled with inorganic porous particles to make it much harder than the compressive strength of the foam itself, so it can be driven easily without bounce when driving nails, greatly improving workability. be.

Furthermore, the construction panel according to the present invention has the characteristics that it is easy to manufacture and can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the construction panel according to the present invention, FIG. 2 is a cross-sectional view showing an example of construction when a wall is formed using the construction panel according to the present invention, Figures 3 a to c are explanatory diagrams showing other embodiments of the architectural panel according to the present invention, and Figures 4 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... main body, 4... clamping and reinforcing protrusion, 14...
...Synthetic resin foam, 15...Waterproof sheet, 16...
...Inorganic porous grains.

Claims (1)

[Scope of utility model registration request] The lower end of one side wall of the main body, which has a concave cross-section and has a square or rectangular decorative surface, is provided with a male connecting part consisting of an insertion edge protruding outward, and the other side wall parallel to the above side wall has an insertion groove and the gap. A synthetic resin foam is formed in the gutter-like part, which is provided with a female connecting part having an extension part extending outwardly from the lower edge of the groove, and is surrounded by the main body and two side walls, and the foam is An architectural panel in which the entire area including the extension part other than the width of Δl near the insertion edge protrudes downward from the back surface of the extension part, and two longitudinal sides and two back faces of the synthetic resin foam are covered with a waterproof sheet. In the above, the shape of the male connecting portion is such that the lower end of the side wall is bent inward at an angle of 50 to 85 degrees, and the edge thereof is bent outward in a seam shape to form a holding and reinforcing protrusion, and the protrusion end and an insert edge extending outward at the angle, and the synthetic resin foam is formed of a synthetic resin foam that becomes a carbonized layer when exposed to high temperatures, and An architectural panel characterized by having inorganic porous particles distributed at high density in the foam layer on the lower surface of the extension.