JP3898327B2 - Building board joint structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joining structure of building boards, and more particularly, to a joining structure between a protruding corner column and a building board or between building boards.
[0002]
[Prior art]
Generally, a building board for an outer wall is formed by forming a male part at one end and a female part at the other opposite end, and superimposing the male part and the female part on each other. A joint structure in which two adjacent building boards are joined together or a joint structure in which two adjacent building boards are simply abutted without forming a real part is used. ing. In such a joint structure, actual coking or joint sealing is performed on the joint part in order to prevent rainwater from entering from outside.
[0003]
On the other hand, in joining a building board for an outer wall and an outer corner column, the building board is cut into an appropriate length and used at a construction site for size adjustment. In that case, since the real part on one side is cut, there is no caulking material. In view of this, in the joint portion between the projecting corner column and the building board, a sealing material for finishing the rain is performed after the construction board is installed in the gap between the two.
[0004]
FIG. 9 and FIG. 10 show an example of a conventional joint structure between the protruding corner column and the exterior plate. Reference numeral 1 is a protruding corner column, and 2 is an exterior plate. In this example, one member 5a of the fastening bracket 5 is fixed to the vertical trunk edge 4 attached to the outside of the column 3, and the other member 5b is fixed. The outer corner column 1 and the exterior plate 2 are fixed to the back surface of the exterior plate 2 and the members 5a and 5b are engaged in the vertical direction, thereby fixing the exterior corner column 1 and the exterior plate 2 to the column 3 on the housing side. . In some cases, the fastener 5 is fixed by nailing without using the fastener 5.
[0005]
In any case, a hat joiner 7 composed of a rib portion 7 a and a flange portion 7 b is arranged and fixed on the back side of the gap 6 at the joint portion between the protruding corner column 1 and the exterior plate 2. Material 8 is cast. As the sealant 8, a moisture-curing one-component polyurethane system or a modified silicone system is used.
[0006]
[Problems to be solved by the invention]
The conventional joining structure as described above requires a work for placing the sealing material 8 in the gap 6 and requires a curing period of about 2 weeks until the placed sealing material 8 is stabilized. In addition, since the sealing material 8 is placed in a joint portion that is easily visible to the public, it tends to cause a sense of incongruity due to a difference in appearance with a building board (exit corner column 1 or exterior plate 2) or inadequate construction technique. Furthermore, there has been a problem that the placing work of the sealing material 8 requires skill and time, and the construction cost is high.
This invention was made paying attention to the above-mentioned point, and it aims at providing the joining structure of the building board which eliminated the said fault by eliminating the placement of a sealing material by using a novel jointer. To do.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a joint structure in which end portions of a building board are abutted and joined with a gap, and a joint joiner having a sealing member fixed on a substrate is used, and the sealing member is attached to the building board. It arrange | positions in the part of the said clearance gap closely_contact | adhered to the back surface, It is characterized by the above-mentioned.
[0008]
In the construction board joining structure 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 construction board. ) Is possible. Therefore, since it is not necessary to place a sealing material in the gap between the butted parts of the building board as in the past, construction can be done in a short period of time, and there is no sealing material exposed to the table as in the past, so the appearance of the joint part Designability is improved.
[0009]
The substrate is arbitrary 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 concrete embodiment of the joining structure of building boards according to the present invention, the joint joiner is obtained by fixing a plurality of bead-like sealing members made of a rubber-like elastic body on a metal plate.
[0010]
The sealing member is a single sheet made of a rubber-like elastic body, and an uneven strip may be formed on the surface of the single sheet.
Further, the building board is a protruding corner column, and the joint joiner is fixed to one side or both sides of the rear surface of the protruding corner column. Alternatively, the joint joiner is a structure that is bent so as to contact the inner surfaces of at least two sides of the protruding corner pillar.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same members or the same functions as those in FIGS. 9 and 10 are denoted by the same reference numerals. In addition, in the drawing, priority is given to easy understanding, and the relative size of each member is not considered. Moreover, although embodiment described below has demonstrated the joining structure of a protruding corner pillar and an exterior board, it is not limited to this, It can apply to the junction part of all building boards.
[0012]
In FIG. 1, a protruding corner column 1 and an exterior plate 2 are attached to the outside of a column 3 through a vertical body edge 4 and a fastening metal fitting 5 as described above. In addition, 17 is a stud and 18 is waterproof paper.
A joint portion 9 between the protruding corner column 1 and the exterior plate 2 is abutted with a gap 6, and a joint joiner 10 is attached to the vertical trunk edge 4 by an appropriate means on the back side of the gap 6. .
[0013]
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 on a metal plate 11 such as an iron plate by bonding or the like. . The sealing member 12 is a bead having a semicircular cross section made of a rubber-like elastic body in the examples of FIGS.
[0014]
Since the jointer 10 is for preventing rainwater from entering from the vertical joint (gap 6), the sealing member 12 is rich in rubber elasticity and excellent in sealing effect (adhesion, raining effect). There is almost no stickiness, dirt hardly adheres, high tensile strength and peel strength, good weather resistance (can withstand temperature changes even in cold regions and areas with long sunshine hours), odorless, etc. Those satisfying the conditions are preferred.
[0015]
Examples of the material having the above performance include a foam melt sealant (foaming magnification) formed of styrene-butadiene-styrene copolymer (SBS), styrene-ethylene-butylene-styrene copolymer resin (SEBS), or the like. A material that can be processed by 2.5 ± 0.5 times or more and a bead width of 2.0 ± 1 mm) is preferably used. In addition, soft rubber having appropriate elasticity may be used.
[0016]
The number of the sealing members 12 is four in FIG. 2, but two as in the second structural example in FIG. 3A, or six as in the third structural example in FIG. Depending on the form of the joining portion, any plurality can be used.
FIG. 4 shows a fourth structure example of the joint joiner 10 in which the sealing member 12 configured as a single sheet is bonded onto the 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 strip 13 is a square in the illustrated example, but may be a semicircular shape as shown in FIGS. 1 and 2 or any other shape.
[0017]
FIG. 5 is a fifth structural example of the joint joiner 10 and is an example in which the sealing member 12 is formed of a flat plate made of, for example, a sponge of closed cells. In this example, it is preferable that the color of the sealing member 12 is black or dark gray to make it difficult to see from the gap 9. The sealing member 12 may be made of a material similar to that shown in FIGS. 1 and 2 in addition to the sponge.
[0018]
6 (a), 6 (b), and 6 (c) are sixth, seventh, and eighth structural examples of the joint joiner 10, respectively, in which a sealing member 12 is provided on a bent metal plate 11. FIG. It is. That is, (a) is a structure in which the metal plate 11 is constituted by two sides 11a and 11b having a right-angle shape, and a sealing member 12 is provided on each of the two sides 11a and 11b. It is directly fixed to the pillar 3 by such means. In addition, one member of a corner fastening bracket 5 ′ similar to the above-described fastening bracket 5 is attached to the corner portion of the joint joiner 10, and the other member is attached to the protruding corner pillar 1, thereby Column 1 is attached to column 3. In (b), the metal plate 11 is composed of two sides 11a, 11b having a right angle and an inclined portion 11c, and a sealing member 12 is provided on each of the three sides 11a, 11b, 11c. By arranging the vertical body edge 4 on one side surface of the column 3, the joint joiner 10 is stably attached. (C) shows a metal plate 11 similar to (a) 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 column 3, and the structure of the sealing member 12 is also arbitrary.
[0019]
FIGS. 7A and 7B are ninth and tenth structural examples of the joint joiner 10, respectively, in which the joint joiner 10 is integrated with the back surface on one side of the protruding corner column 1. That is, FIG. 7A shows a joint joiner 10 in which a single sealing member 12 in which a semicircular concavo-convex portion 14 and a flat plate portion 15 are formed is bonded onto a metal plate 11. 15 is fixed to the rear surface on one side of the protruding corner column 1 by means such as adhesion. FIG. 7B shows a case in which the sealing member 12 is formed by bonding a single sealing member 12 in which the square uneven portion 16 and the flat plate portion 15 are formed on the metal plate 11. It is fixed to the back of one side of the protruding corner column 1 by means such as adhesion.
8 (a) and 8 (b) are 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 other configurations are illustrated. 7 is the same.
[0020]
【The invention's effect】
As described above in detail, according to the present invention, since the jointer composed of the substrate and the sealing member is attached to the back side of the building board, it becomes possible to prevent rainwater from entering due to the sealing effect of the sealing member. A rainy effect can be obtained. Therefore, since it is not necessary to place a sealing material in the gap (joint) of the joint part as in the past, construction can be performed in a short period of time, and there is no sealing material exposed to the joint as in the conventional case. Appearance design improves. In addition, since the sealing member of the present invention is not exposed to the joint, it is less deteriorated due to changes with time and has high durability.
The joint structure of the present invention can be applied not only to the joining of the protruding corner columns as described above, but also to the joining of ordinary building boards, and in that case, 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 also simplified.
[Brief description of the drawings]
FIG. 1 is a plan sectional view showing an embodiment of a construction structure for building boards according to the present invention.
FIG. 2 is an enlarged cross-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 illustrating a fourth structure example of a joint joiner.
FIG. 5 is a cross-sectional view showing a fifth structure example of a joint joiner.
FIGS. 6A, 6B, and 6C are cross-sectional views showing sixth, seventh, and eighth structural examples of a jointer, respectively.
FIGS. 7A and 7B are cross-sectional views showing ninth and tenth structural examples of a joint joiner, respectively.
FIGS. 8A and 8B 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 building board joining structure.
10 is an enlarged cross-sectional view of the main part of FIG. 9;
[Explanation of symbols]
1 Out corner pillar (architecture board)
2 Exterior board (architecture board)
5 Fastening bracket 6 Clearance 10 Jointer 11 Substrate (metal plate)
12 Sealing member 13 Concave and convex strip

Claims (3)

In the joining structure that joins each end of the exterior corner pillar and the exterior board, which is a building board, with a gap between them,
A joint joiner formed by fixing a sealing member on a substrate bent so as to abut against the inner surfaces of at least two sides of the protruding corner column, and the sealing member in close contact with the back surfaces of the protruding corner column and the exterior plate And arranged in the gap portion,
The sealing member has a plurality of bead shapes made of a rubber-like elastic body. In the joining structure that joins each end of the exterior corner pillar and the exterior board, which is a building board, with a gap between them,
A joint joiner formed by fixing a sealing member on a substrate bent so as to abut against the inner surfaces of at least two sides of the protruding corner column, and the sealing member in close contact with the back surfaces of the protruding corner column and the exterior plate And arranged in the gap portion,
The sealing member is a building board joining structure comprising a single sheet of rubber-like elastic material. The joint structure for building boards according to claim 2, wherein irregularities are formed on the surface of the sheet.

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