JPH11247306A - Jointing structure of architectural board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with the placing work of a sealing material and execute a joint in a short period of time by butting a projected corner column 1 and an exterior finish panel with a gap and fittiing a joint joiner to vertical furring strips. SOLUTION: A projected corner column 1 and exterior finish panels 2, 2 are attached to the outside of a column 3 through vertical furring strips 4, 4 and metal fixings 5, 5. The projected corner column 1 and the exterior finish panels 2 are butted against each other at the jointing parts 9, 9 with gaps 6, 6 and joint joiners 10, 10 are fitted to the vertical furring strips 4 at the near side of the gaps 6. A plurality of sealing members 12, 12 having a semicircular bead-shaped section made of a rubber-like elastic body are fixed onto metallic boards 11 as a base board, in this joint joiner 10. Hence, rain water is prevented from penetration owing to the sealing effect of the sealing member 12 and it becomes unnecessary to place a sealing material in the gap 6 of the jointing part 9 and hence, a joint can be executed in a short period of time.

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 building boards, and more particularly, to a joint structure between a corner post and a building board or between building boards.

[0002]

2. Description of the Related Art Generally, a building board for an outer wall has a male part at one end and a female part at the other opposite end, and the male part and the female part are connected to each other. A joint structure in which two adjacent building boards are joined by overlapping, or a joint structure in which two adjacent building boards are simply butted without forming a real part Is used. In such a joining structure, actual caulking and joint sealing are performed on the joining portion for a so-called raining action that prevents rainwater from entering from the outside.

[0003] On the other hand, in joining the building plate for the outer wall and the protruding corner pillar, the building plate is cut to an appropriate length at the construction site for use in order to adjust the dimensions. In that case, since the real part on one side is cut off, there is no caulking material at all. Therefore, in the joint between the protruding corner post and the building board, a sealing material is put into the gap portion where they are abutted with each other after the building board is put in place for sealing rain.

FIGS. 9 and 10 show an example of a conventional joint structure of a portion between a protruding corner post and an exterior plate. 1 is a corner post,
Reference numeral 2 denotes an exterior plate. In this example, one member 5a of the fastening metal fitting 5 is fixed to the vertical waist 4 attached to the outside of the column 3, and the other member 5b is connected to the exterior corner post 1 and the exterior. The protruding corner post 1 and the exterior plate 2 are fixed to the column 3 on the skeleton side by fixing to the back surface of the plate 2 and engaging the two members 5a and 5b in the vertical direction. There is also a case where the work is fastened by nailing without using such fasteners 5.

In any case, a hat joiner 7 composed of a rib portion 7a and a flange portion 7b is arranged and fixed on the back side of the gap 6 at the joint portion between the protruding corner post 1 and the exterior plate 2. A sealing material 8 is cast into 6. As the sealing material 8, a one-component moisture-curable polyurethane or a modified silicone is used.

[0006]

The above-mentioned conventional joint structure requires the operation of placing the sealing material 8 into the gap 6 and requires about 2 seconds until the placed sealing material 8 is stabilized. Requires a week curing period. In addition, since the sealing material 8 is cast into joints that are easily visible,
It is easy to cause a sense of incongruity due to the difference in appearance from the building boards (outer corner pillars 1 and exterior boards 2) and inadequate construction techniques. Furthermore, there is a problem that the casting operation of the sealing material 8 requires skill and time, and the construction cost is high. The present invention has been made by paying attention to the above points, and an object of the present invention is to provide a joining structure of a building board which eliminates the above-mentioned drawbacks by eliminating the casting of a sealing material by using a novel joint joiner. I do.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a joint structure in which ends of building plates are joined by abutting them with a gap therebetween. The sealing member is closely attached to the back surface of the building board and is disposed in the gap.

In the joint structure for building boards of the present invention, the joint joiner composed of the board and the sealing member integrated with the board is attached to the back side of the building board, so that the sealing effect of the sealing member prevents rainwater from entering. (Raining). Therefore, it is not necessary to cast a sealing material into the gap between the butted portions of the building boards as in the past, so that the construction can be performed in a short period of time and the appearance of the joint portion because there is no sealing material exposed to the surface as in the conventional case. The design is improved.

The substrate is not particularly limited as long as it has the required strength as a structural material and has high weather resistance, and a reinforced plastic material such as a metal plate or FRP is suitable.
In a specific embodiment of the joint structure for building boards of the present invention, the jointer is formed by fixing a plurality of bead-shaped sealing members made of a rubber-like elastic body on a metal plate.

[0010] The sealing member may be a single sheet made of a rubber-like elastic material, and the surface of the single sheet may be formed with uneven strips. Further, the building board is a protruding corner post, and the joint jointer is fixed to one or both sides of a back surface of the protruding corner post. Alternatively, the joint joiner has a structure that is bent so as to abut on inner surfaces of at least two sides of the protruding corner post.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 9 and 10 are denoted by the same reference numerals. In the drawings, clarity is given priority, and the relative size of each member is not considered. In addition, the embodiment described below describes the joint structure between the protruding corner pillar and the exterior plate, but the present invention is not limited to this, and can be applied to any joint portion between building plates.

In FIG. 1, a protruding corner post 1 and an exterior plate 2 are provided outside a post 3 on a vertical trunk edge 4 and a fastener 5 as described above.
Attached through. 17 is a stud, 18
Is waterproof paper. Joint 9 between protruding corner post 1 and exterior plate 2
Are joined to each other with a gap 6 therebetween, and a joint joiner 10 is attached to the back side of the gap 6 with respect to the vertical trunk 4 by an appropriate means.

As shown in FIG. 2, the jointer 10 has a plurality of sealing members 12 (four in the example of FIGS. 1 and 2) fixed to a metal plate 11 such as an iron plate as a substrate by bonding or the like. Things. The sealing member 12 is a bead having a semicircular cross section made of a rubber-like elastic body in the examples of FIGS.

The jointer 10 is a vertical joint (gap 6).
The sealing member 12 is rich in rubber elasticity, has excellent sealing effects (adhesion and rain-closing effect), has little tackiness, and is hardly adhered with dirt. Those which satisfy conditions such as high tensile strength and peel strength, good weatherability (can withstand temperature changes even in cold regions and regions with long sunshine hours), and odorlessness are preferred.

Materials having the above performance include:
For example, a styrene-butadiene-styrene copolymer (S
BS), foam-melt sealing material formed of styrene-ethylene-butylene-styrene copolymer resin (SEBS), etc. (things that can be processed with a firing ratio of 2.5 ± 0.5 or more and a bead width of 2.0 ± 1 mm) ) Are preferably used. In addition, soft rubber or the like having appropriate elasticity may be used.

The number of the sealing members 12 is four in FIG.
Although there are two or more books as shown in the second structural example of FIG. 3A, or two such as six as in the third structural example of FIG. Books can be used.
FIG. 4 shows a fourth structural example of the jointer 10.
A sealing member 12 configured as a single sheet is bonded to a metal plate 11. The material of the sealing member 12 is the same as described above, and the ridges 13 are formed symmetrically on the surface side. The cross-sectional shape of the uneven stripe 13 is as follows.
In the illustrated example, the shape is rectangular, but may be a semicircle as shown in FIGS. 1 and 2 or any other shape.

FIG. 5 shows a fifth structural example of the jointer 10 in which the sealing member 12 is a flat plate made of, for example, a closed-cell sponge. In this example, it is preferable that the color of the sealing member 12 be black or dark gray to make it difficult to see from the gap 9. The material of the sealing member 12 may be the same as that shown in FIGS. 1 and 2 in addition to the sponge.

FIGS. 6A, 6B, and 6C show sixth, seventh, and eighth structural examples of the jointer 10, respectively, in which a sealing member 12 is provided on a bent metal plate 11. FIG. It is provided. That is, (a) shows that the metal plate 11 is composed of two sides 11a and 11b each having a right angle, and each of the two sides 11a and 11b.
In this example, the jointer 10 is directly fixed to the column 3 by nailing or the like. At the corner of the jointer 10, one member of a corner fixing metal 5 ′ similar to the above-described fixing metal 5 is attached. The pillar 1 is attached to the pillar 3. (B) is a case where the metal plate 11 is a right-angled two side 11
a, 11b and an inclined portion 11c.
The sealing members 12 are provided on 1a, 11b, and 11c. In this case, the joint of the joint joiner 10 is stabilized by disposing the vertical trunk edge 4 on one side surface of the pillar 3. (C) shows the same metal plate 11 as shown in (a) but provided with the flat sealing member 12 shown in FIG. 5. Is attached to the pillar 3. The bending angle and the bending shape of the metal plate 11 are arbitrarily configured according to the shape of the protruding corner post 3, and the structure of the sealing member 12 is also arbitrary.

FIGS. 7A and 7B show ninth and tenth structural examples of the jointer 10, respectively, in which the jointer 10 is integrated with the back surface on one side of the protruding corner post 1.
That is, FIG. 7A shows a jointer 10 in which a single sealing member 12 in which a semicircular uneven portion 14 and a flat plate portion 15 are formed is adhered on a metal plate 11. 15 is fixed to the back surface on one side of the protruding corner post 1 by means such as adhesion. FIG. 7B shows the sealing member 12 in which a single sealing member 12 in which a rectangular uneven portion 16 and a flat plate portion 15 are formed is adhered on a metal plate 11. It is fixed to the back surface on one side of the protruding corner post 1 by means such as adhesion. FIGS. 8A and 8B
Are the eleventh and twelfth structural examples of the joint joiner 10, in which the joint joiner 10 is integrated on the back surfaces on both sides of the protruding corner post 1, and the other configuration is the same as that of FIG.

[0020]

As described above in detail, according to the present invention, the joint joiner composed of the substrate and the sealing member is mounted on the back side of the building board, so that the sealing member seal effect prevents rainwater from entering. Is possible, and a good rain closing effect can be obtained. Therefore, since it is not necessary to cast a sealing material in the gap (joint) between the joints as in the related art, the construction can be performed in a short period of time, and since there is no sealing material exposed to the joint as in the related art, Appearance design is improved. In addition, since the sealing member of the present invention is not exposed to joints, it is less deteriorated by aging and has high durability. The joining structure of the present invention can be applied not only to the joining of the protruding corner pillars as described above, but also to the joining of ordinary building boards. In that case, since it is not necessary to form a real part on the building board, There is an advantage that the structure of the building board is simplified.

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing an embodiment of a joint structure for building boards of the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIGS. 3A and 3B are cross-sectional views showing second and third structural examples of the jointer, respectively.

FIG. 4 is a cross-sectional view showing a fourth structural example of a joint joiner.

FIG. 5 is a cross-sectional view showing a fifth structural example of a joint joiner.

FIGS. 6 (a), (b) and (c) are cross-sectional views showing sixth, seventh and eighth structural examples of the jointer, respectively.

FIGS. 7A and 7B are cross-sectional views showing ninth and tenth structural examples of a jointer, respectively.

FIGS. 8 (a) and (b) are cross-sectional views showing eleventh and twelfth structural examples of a jointer, respectively.

FIG. 9 is a cross-sectional plan view of a conventional joint structure for building boards.

FIG. 10 is an enlarged sectional view of a main part of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer corner pillar (building board) 2 Exterior board (building board) 5 Fastening metal 6 Gap 10 Jointer 11 Board (metal plate) 12 Sealing member 13

Claims (6)

[Claims] 1. A joint structure in which edges of a building board are joined by abutting each other with a gap therebetween, wherein a joint joiner having a sealing member fixed on a substrate is brought into close contact with the back surface of the building board to form the gap. The joint structure of building boards, which is arranged in the part. 2. The joint structure for building boards according to claim 1, wherein said joint jointer is formed by fixing a plurality of bead-shaped sealing members made of a rubber-like elastic body on a substrate. 3. The sealing member according to claim 1, wherein the sealing member is a single sheet made of a rubber-like elastic body.
The joint structure of the described building board. 4. The joint structure for building boards according to claim 1, wherein the sealing member is formed by forming an uneven strip on a surface of a single sheet made of a rubber-like elastic body. 5. The building board is a protruding corner post, and the joint joiner is fixed to one or both sides of a back surface of the protruding corner post. The joint structure of the described building board. 6. The architectural structure according to claim 1, wherein said joint jointer has a structure bent so as to contact at least two inner surfaces of said protruding corner post. Board joining structure.