JPS6023387Y2 - siding board - Google Patents

Description

[Detailed description of the invention] This invention is a siding in which the main body with male and female joints is filled with a fire-resistant and heat-insulating foam, and the back side is covered with a heat-reflecting and heat-radiating sheet material. This relates to a board (hereinafter simply referred to as a board).

More specifically, when forming external walls etc. using the above boards, the connecting parts, which are the weakest point in terms of mechanical strength and fire resistance,
In particular, the present invention relates to a board with enhanced fire protection and ease of driving nails on the back side of the female joint.

In general, there are two methods for forming external walls: dry method 1 and wet method 1.
There is a law.

Recently, the dry method 1 has become widely popular due to its shortened construction period, easy formation of a heat insulating layer, and cost reduction.

Its main component is a board with a male and female mating structure.

However, when the outside of the wall formed by this type of board is exposed to flame or high heat, the metal plate forming the outside of the board expands due to the heat and becomes significantly strained. It was normal for it to appear greatly.

Further, the core material foam, such as polyurethane foam, has a heat resistance temperature of 100'C or less, and shrinks significantly up to the above temperature.

Therefore, in the connecting portion of the outer wall using this type of board, separation of the fitting portion and the formation of a large gap are unavoidable.

Since flames and hot air directly enter the inside of the board through these gaps, there is a drawback that the outer wall lacks fire resistance and heat resistance.

Furthermore, when the board is attached, the female connecting portion is hit hard with a hammer, resulting in damage to the form.

In order to eliminate these drawbacks, the present invention completely blocks the intrusion of flame and hot air from the joints of the boards so that they do not directly propagate to the rim etc., and improves the fire resistance and heat resistance of the joints. This paper proposes a lightweight, highly insulating board with enhanced mechanical strength (compression bending) of the female joint and nail pull-out resistance.

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 typical example of the above-mentioned board. 1 is a surface material with a concave cross section, and is made of, for example, a thin metal plate (color iron plate, stainless steel plate, copper plate, aluminum plate).
It is one of the most prominent types.

To explain further, the surface material 1 has a rectangular decorative surface 2 and side walls 3° 4 whose edges are vertical or inclined (not shown).
, a male type connecting part 5 extending outwardly on both side edges thereof, and a female type connecting part 6.

Moreover, the male type connecting part 5 is shaped by the insertion edge 7 and the tongue piece 8 that protrude outward, and the female type connecting part 6 is formed by bending the edge of the side wall 4 inwardly and then again outwardly. The insertion edge 9 is formed by extending the lower edge 10 outwardly to provide an extension portion 11.

The extension part 11 is provided with a protrusion 12 parallel to the side wall in the middle thereof, and has a tongue piece 13 at its tip.

14 is a lightweight foam, and is made of a material that forms a carbon skeleton under high heat to form a carbonized layer and maintains its original shape even under high heat, such as one type of polyisocyanurate foam or phenol foam, using a molding method. The concave portion of 1 projects downward from the lower edge 10 and is integrally formed in the portion excluding the back surface of both connecting portions due to its self-adhesive property.

15 is a reinforcing plate with compression resistance, nail pull-out resistance,
This is to provide fire resistance, prevent the formation of gaps at joints caused by distortion of the main body 1 under high temperatures, and prevent flames from entering the interior.

That is, the reinforcing plate 15 is simply placed or fixed to at least the lower edge 10 of the female coupling part 6 and the back surface of the extension part 11 via an adhesive layer.

That is, it is the same as or lower than the protruding height t of the form 14, and has a length that at least covers the lower edge 10 and the back surface of the extension part 11, and is longer than the bottom surface of the insertion groove 9 due to adhesive strength. It is a width that protrudes in the direction by Δ1.

The above Δl is about 5 to 5 or Irln.

The reinforcing plate 15 is made of a calcium silicate board, a rock wool board, a gypsum board, or a semi-nonflammable foam whose main components are vinyl chloride and calcium carbonate.

Reference numeral 16 denotes a sheet-like material that completely covers at least the exposed surface of the foam 14 and the boundary between the foam 14 of the reinforcing plate 15, and prevents destruction of the foam and performance deterioration, as well as preventing destruction of the carbide. It is something to suppress.

The sheet-like material 16 serves to strengthen the mechanical strength of the board due to the sand inch structure, and serves as a waterproof layer, a humidity control layer, or a release material during foam formation.

In addition, in reality, there is about 3~10rrrm on the back side of the insertion edge 7.
Part of the back side of the reinforcing plate 15 (approximately 3 to 5071rIrL)
In addition, when the foam 14 is shaped by the in-situ foaming method, the protruding edges are integrally fixed to each member through the self-adhesive property of the foam raw material, and leakage of the foam raw material to the outside is prevented. prevent.

Further, as the material of the sheet-like material 16, for example, kraft paper, asbestos paper, gypsum paper, glass fiber, etc., metal foil (A
I.

pb), a laminate of one or more types of foam sheets (3 to 41rr! rL), etc., or a wire mesh sandwiched with sheet-like materials on both sides to obtain shape retention at high temperatures,
It is a sheet-like product etc. formed by molding this.

Note that the sheet-like material 16 can be formed as a molded body, or can be molded simultaneously in a mold at the time of forming the foam.

2A to 2H are explanatory diagrams showing other embodiments of the board according to the present invention, and FIG.
The edge of the sheet-like material 16 is fixed to 5a, and an adhesive is provided between the back of the extension part and the reinforcing plate 15 as necessary.
Figure b shows a board in which the surface of the reinforcing plate 15 that comes into contact with the foam 14 is shaped into a stepped shape to achieve integration with the foam 14, and the foam raw material is also applied to the back surface of the extension portion 11 as an adhesive 11a. It is.

Further, Figure C shows a board in which the shape of the main body 1 is only changed, and Figure D shows a board in which the shape of the form 14 is changed.

Furthermore, figure e shows a board in which the shape of the reinforcing plate 15 is changed, and figure f shows a board in which appropriate holes 17 are bored in the reinforcing plate 15 in figure e.

Figures g and h are boards in which reinforcing plates 15 are integrally arranged at two locations as shown.

In addition, FIGS. 3a to 3d show other embodiments of the reinforcing plate 15, and FIG. b) or a reinforcing plate impregnated into the structure, b
The figure shows a reinforcing plate with a part cut away, and the figure C shows a reinforcing plate whose surface that contacts the foam 14 is fluffed to strengthen the integration with the foam raw material.

Figure d shows a reinforcing plate covered with a film 19.

Next, the mounting state of the board according to the present invention will be explained.

In Fig. 4, A is a rim, B is a nail, ■, @ is a board according to the present invention shown in Fig. 1, and a board ■ is attached to a rim A, a nail B is
It is fixed through.

Insert the insertion edge 7 of the adjacent board @ into the insertion groove 9 of the board ■ and connect them.

To form the wall, this process may be repeated in sequence.

In addition, in this connection part, the sheet-like material 16 and the protrusion 1
2 are in linear contact with each other, thereby preventing the intrusion of rainwater, etc., and the intrusion of primary flames.

In addition, even if the connecting portion is greatly distorted when exposed to flame or high heat, the reinforcing plate 15, which has resistance to pulling out the nail B, fire resistance, and heat resistance, and has rigidity and shape retention with little dimensional change, will reliably resist the flame. , because it intervenes to block high heat, so flames and hot air do not directly enter the interior.

Furthermore, the connection part (joint part) structure is maintained with a so-called heat insulating layer, and JIS-A-1321 (semi-incombustible material test), JIS-A-1301 (class 2 fire prevention for wooden parts of buildings) It has fire retardant properties that can pass the test).

What has been described above is only one embodiment of the board according to the present invention, and the portion of the sheet-like material 16 near the insertion edge 7 may be coated with or impregnated with fireproof foam paint, borax, or sodium metaborate. The reinforcing plate 15 is made to protrude to the position shown by the two-dot chain line in FIG.
It can also be extended to the S3 position.

As mentioned above, according to the board according to the present invention, hot air and flames entering from the outside of the connecting part are completely blocked by the nonflammable surface material, reinforcing plate, and sheet-like material, thereby preventing them from propagating inside. is prevented.

In addition, since the surface material 1 and the reinforcing plate are nonflammable, the appearance
It forms a barrier layer against heat and flames with no breakage points.
It is characterized by greatly improved fire resistance and heat insulation properties of outer walls, etc.

Furthermore, the foam has excellent thermal insulation properties both under normal conditions and under high heat conditions, and is also lightweight.

Furthermore, the reinforcing plate is hard, and even if the foam is discharged between the main body and the sheet-like material in its raw state, it will stick together with its self-adhesive properties, so there is no need to stick the constituent materials together with adhesive. Moreover, it is not affected by shape and has the characteristics of significantly improved mechanical strength.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the siding board according to the present invention, Fig. 2 a % h, and Fig. 3 a - d
FIG. 4 is a vertical sectional view and a perspective view showing another embodiment, and FIG. 4 is an explanatory view showing a connected state of the siding boards. 1...Surface material, 5...Male connection part, 6
...Female type connection part, 14... Form,
15... Reinforcement plate.

Claims (1)

[Scope of utility model registration request] A male connecting part consisting of a rectangular decorative surface, a side wall with both side edges of the side wall bent inward, an insertion edge with one lower end of the side wall projecting outward, and a tongue piece with the tip thereof bent upward; The lower end of the side wall is bent inward and outward again to form an insertion groove, the lower edge of which is extended outward, and a protrusion parallel to the side wall is provided in the middle of the extended part and its tip. A metal surface material having a female connecting portion consisting of a tongue piece bent upward, and a gap surrounded by the decorative surface and both side edges are filled, and an insertion groove near the male connecting portion is filled. A form that becomes a carbonized layer in a shape that is at least close to its original shape under high heat, with the back surface excluding the vicinity protruding downward from the extension part, and one end located inside the insertion groove and the other end at the tip of the extension part. and a reinforcing plate with one type of rock wool or high-density phenol foam of a protruding thickness of the above-mentioned foam fixed directly to the back surface of the extension part or through an adhesive, and the entire exposed surface of the foam in the longitudinal direction. It is characterized by comprising a sheet-like material that covers at least the vicinity of the side wall of the insertion edge and the vicinity of the boundary between the reinforcing plate and the form, and these constituent materials are fixed together through their self-adhesive properties when forming the form. siding board.