JPH09317124A - Joint structure of exterior material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure which can be simply treated at site and in which the fire-resistant property can be secured. SOLUTION: Metallic sashes 2 are attached along the rear face edges of adjacent two fire-resistant exterior materials 1. A protruded piece 5 is fitted along the outside of the metallic sash 2 of one of these exterior materials 1 and a recess 14 is provided along the outside of the metallic sashes of adjacent exterior material 1. A sealing material 12 is put in the depth of the recess 14 along the longitudinal direction so that the protruded piece 5 enters in the recess 14 and presses the sealing material at the depth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for exterior materials.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a metal crosspiece (2) is provided along the back surface edge of a fireproof exterior material (1) and serves as a joint between adjacent exterior materials (1). The refractory material (8) is sandwiched between the metal bars (2), and the caulking material (7) is placed on the front side of the refractory material (8) to perform joint treatment to fill the gap between the adjacent exterior materials (1). It was Further, in some cases, a heat insulating material (13) is attached to the back surface of the exterior material (1) in order to improve the heat insulating property of the exterior material (1).

[0003]

In the prior art, in order to prevent fire from intruding into the building from the joint of the adjacent exterior materials (1) and to secure fire resistance, the space between the metal bars (2) is to be prevented. The fire resistant material (8) is sandwiched between the two, and the caulking material (7) must be placed on the front side of the fire resistant material (8) to fill the gap between the adjacent exterior materials (1) in order to ensure waterproofness. It took a lot of time to process the joint of the exterior material (1).

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a joint structure for an exterior material which is easy to perform joint treatment on site and can ensure fire resistance. .

[0005]

According to a first aspect of the present invention, there is provided a joint structure for an exterior material, in which a metal crosspiece is provided along the back edge of two adjoining exterior materials having fire resistance. A convex piece is provided along the outside of the metal bar of the material, a recess is provided along the outside of the metal bar of the other adjacent exterior material, and a sealing material is provided in the back of the recess along the longitudinal direction of the recess. The piece enters the recess and the sealing material is pressed against the interior of the recess. By doing so, it is only necessary to apply the sealing material provided in the concave portion so that the convex pieces come into pressure contact, so that it is not necessary to pinch the refractory material on the site, and it is not troublesome. Also, even if the flame enters through the gap between the exterior materials, the convex piece enters the concave part, so the path of the flame to the sealing material becomes bent, and the flame does not directly hit the sealing material, and the fire resistance It will be good. Further, since the sealing material is pressure-bonded and joined, the waterproof property can be secured without performing caulking work.

According to a second aspect of the present invention, in the joint structure for the exterior material according to the first aspect, a nonflammable heat insulating material is attached to the back surface of the convex piece. By doing so, in addition to the above effects, heat insulation, heat resistance, fire resistance, and the like at the joint portion are further improved.

According to a third aspect of the present invention, there is provided a joint structure for an exterior material according to the first aspect or the second aspect, characterized in that a gasket is inserted between the exterior materials adjacent to the front side of the exterior material. By doing so, in addition to the above effect, water from the joint to the back side of the exterior material is eliminated, and the waterproof property is further improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a first embodiment of the present invention according to claims 1 to 3. In the first embodiment of the present invention, a metal crosspiece (2) is provided along the back surface edge of two adjoining exterior materials (1) having fire resistance, and the metal crosspiece of one exterior material (1) ( Convex piece (5) along the outside of 2)
And a recess (14) is provided along the outside of the metal crosspiece (2) of the other adjacent exterior material (1), and a sealing material is provided in the back of the recess (14) along the longitudinal direction of the recess (14). (12) is provided, and the convex piece (5) enters the concave portion (14) to form the concave portion (1
The sealing material (12) is pressure-contacted in the inner part of (4), the nonflammable heat insulating material (6) is attached to the back surface of the convex piece (5), and the exterior material (1) adjacent to the front side of the exterior material (1). The gasket (10) is inserted between the two.

More specifically, referring to FIG. 1, a metal U-shaped crosspiece (2) having a substantially U-shape is provided on the back surface of the outer casing B (1) on the right side along the edge so that the dent is outward. Along the longitudinal direction of the recess (14) which is the recess, the recess (14)
A sealing material (12) is provided in the inner part of the metal, and a nonflammable heat insulating material (13) is provided on the side of the metal crosspiece (2). The reinforcing bar (11) is provided so as to be orthogonal to the metal bar (2) for reinforcement. On the back surface of the adjoining left side exterior material A (1), a metal U-shape (2) having a substantially U-shape is provided along the edge so that the recess is inward, and the metal O-shape is provided outside the metal Y-shape (2). Providing a substantially L-shaped protruding piece (5) protruding along (2),
A nonflammable heat insulating material (13) is provided on the side of the metal crosspiece (2), and a nonflammable heat insulating material (6) is provided on the back surface of the convex piece (5). The horizontal rail (11) is provided so as to be orthogonal to the metal rail (2) for reinforcement. Seal material (1
These two exterior materials (1) are applied as outer walls of a building so that the (2) is pressed against the convex piece (5), and a gasket ( 10) is inserted.

In this case, since it is only necessary to apply the sealing material (12) provided in the concave portion (14) so that the convex piece (5) is in pressure contact, there is no need to perform fireproof treatment on site,
It will be a hassle-free one. Further, even if the flame enters through the gap between the exterior materials (1), the convex piece (5) becomes concave (1).
4) Since it has entered the seal material (12), the flame path to the seal material (12) is bent, and the flame is directly exposed to the seal material (1).
2) has been eliminated, and it has good fire resistance. Further, since the nonflammable heat insulating material (6) is attached to the back surface of the convex piece (5), the heat insulating property, heat resistance, fire resistance and the like at the joint portion are further improved, and further, the nonflammable heat insulating material (13). ) Was laid on the entire back surface of the exterior material (1),
The heat insulation and heat resistance of the entire outer wall of the building have been further improved. In addition, since the gasket (10) is inserted between the exterior material (1) adjacent to the front side of the exterior material (1), there is no water intrusion from the joint to the back side of the exterior material (1).
It has an excellent water finish.

Next, claims 1 to 3 as shown in FIG.
2 shows a second embodiment of the present invention. This is a substantially Z-shaped bar (3) in which the metal bar (2) in the first embodiment forms a recess (14) and a substantially L-shaped bar (5).
It is a character-shaped crosspiece (4), and the other structure is the same as that of the first embodiment. Even in this case, the same effect as that of the first embodiment is obtained.

Next, FIGS. 3 to 5 are views showing an exterior panel in which the first embodiment is used for a horizontal joint structure and the second embodiment is used for a vertical joint structure. Reinforcing crosspieces (11) are provided in a cross shape near the center of the exterior material (1), and fireproofs are provided at both ends of the convex piece (5) provided on the upper surface of the substantially L-shaped crosspiece (4). A sealing material (9) is attached. When the exterior panels are joined vertically and horizontally, a joining portion (A) where the four exterior materials (1) are overlapped with each other is generated as shown in FIG. 5, and at this joining portion (A), as shown in FIG. And, as shown in FIG. 4, the fireproof sealant (9) attached to both ends of the convex piece (5) provided on the upper surface of the substantially L-shaped crosspiece (4) allows the four exterior materials (1) to be attached. The waterproofness and fire resistance of the overlapping joint (A) are improved. Further, a gasket (10) is fitted in the joint to prevent water from entering the joint from the back side of the exterior material (1).

[0013]

As described in detail above, according to the joint structure of the exterior material according to the first aspect, the sealing material provided in the concave portion only needs to be installed so that the convex pieces are in pressure contact with each other. It does not need to be pinched, making it a hassle-free one. Also, even if the flame enters through the gap between the exterior materials, the convex piece enters the concave part, so the path of the flame to the sealing material becomes bent, and the flame does not directly hit the sealing material, and the fire resistance It will be good. Further, since the sealing material is pressure-bonded and joined, the waterproof property can be secured without performing caulking work.

Further, according to the joint structure of the exterior material of the second aspect, in addition to the above effects, the heat insulating property, heat resistance, fire resistance and the like at the joint portion are further improved.

Further, according to the joint structure of the exterior material according to the third aspect, in addition to the above-mentioned effects, water from the joint to the back side of the exterior material is eliminated, and the waterproof property is further improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an essential part showing a first embodiment of a joint structure for an exterior material according to the present invention.

FIG. 2 is a cross-sectional view of an essential part showing a second embodiment of a joint structure for an exterior material according to the present invention.

FIG. 3 is a perspective view showing an exterior panel used for a joint structure of exterior materials according to the present invention.

FIG. 4 is a perspective view of an essential part showing a joint portion of an exterior material using the exterior panel.

FIG. 5 is a main part front view showing a joint portion of an exterior material using four exterior panels.

FIG. 6 is a cross-sectional view showing a conventional joining structure of exterior materials.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exterior material 2 Metal crosspiece 5 Convex piece 6 Nonflammable heat insulating material 10 Gasket 12 Sealing material 14 Recessed portion

Claims (3)

[Claims] 1. A metal crosspiece is provided along the rear edge of two adjacent fireproof exterior materials, and a convex piece is provided along the outside of the metal crosspiece of one of the exterior materials. A recess is provided along the outside of the metal crosspiece of the material, a sealing material is provided in the back of the recess along the longitudinal direction of the recess, and the projecting piece enters the recess and presses the sealing material in the back of the recess. Joining structure of materials. 2. The joint structure for an exterior material according to claim 1, wherein a nonflammable heat insulating material is attached to the back surface of the convex piece. 3. The gasket according to claim 1, wherein a gasket is inserted between the exterior materials adjacent to the front side of the exterior material.
Joining structure of the exterior materials described.