JP3919953B2 - Bonding structure of metal fittings and building boards - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint fitting used when a building board such as an outer wall board for longitudinal connection is mounted on a base surface, and a structure for joining the building board using the joint fitting.
[0002]
[Prior art]
Conventionally, for example, when installing an outer wall plate for longitudinal connection on a base surface, as shown in FIG. 6, a horizontal trunk edge (17) is passed to a wall frame column (16), and a joining bracket (17) is connected to the horizontal trunk edge (17). 4A) is mounted discontinuously at a predetermined interval, and a configuration is provided in which the upper and lower outer wall plates (1) are bonded and fixed by the joint fitting (4A) and maintained at a predetermined interval from the lateral trunk edge (17). (Japanese Patent Publication No. 6-65819).
In the above configuration, air can flow between the outer wall plate (1) and the horizontal trunk edge (17) between the joint fittings (4A) as shown by the arrows, and the pillars, the trunk edge, or the outer wall board ( 1) is not affected by moisture and can improve the durability of the building.
[0003]
[Problems to be solved by the invention]
In the above conventional configuration, since the joint metal fittings (4A) are discontinuously arranged, the mounting strength of the outer wall plate (1) is not sufficient, and the occurrence of warpage of the outer wall plate (1) cannot be prevented. It was. However, if the joining metal fittings (4A) are continuously arranged, ventilation on the back side of the outer wall plate (1) will be hindered.
[0004]
[Means for Solving the Problems]
The present invention provides, as means for solving the above-mentioned conventional problems, a substrate (5), and a plate receiving portion (6) which is provided on both sides of the substrate (5) and has fitting clamping portions (10A, 10B) on both sides. The substrate (5) is formed with rising step portions (7A, 7B) at both ends, and both the rising step portions (7A, 7B) are provided with vent holes (18A, 18B). The joining bracket (4) is provided.
One of the rising step portions (7A, 7B) of the joint fitting (4) is preferably inclined more gently than the other, and the fittings on both sides of the plate receiving portion (6) of the joint fitting (4) It is desirable that a cushion material (13) is inserted into one or both inner rear ends of the sandwiching portions (10A, 10B).
Further, in the present invention, the joint fitting (4) is continuously arranged and attached on the surface of the base (17), and the fitting holders (10A, 10B) on both sides of the plate receiving portion (6) of the joint fitting (4). ) Is provided with a structure for joining the building boards (1) in which the ends of the pair of building boards (1) to be joined are clamped and sandwiched.
The building board (1) recess (2) groove-like on the surface reach the end of the are formed in parallel to the plurality of longitudinally recess both ends from the surface of the building board (1) A fitting protrusion (3) is formed with a notch deeper than the depth of (2), and the fitting holder (10A, 10B) on both sides of the plate receiving portion (6) of the fitting (4) It is desirable that the fitting protrusion (3) of the building board (1) is fitted and clamped.
[0005]
[Action]
The joining bracket (4) of the present invention is continuously arranged and mounted on the surface of the base (17), and the fittings (10A, 10B) on both sides of the plate receiving portion (6) of the joining bracket (4). The ends of the pair of building boards (1) to be joined are fitted and clamped.
Since the rising step portions (7A, 7B) are formed at both ends of the substrate (5) of the joint metal fitting (4), the building board (1) maintains a predetermined distance from the surface of the base (17). Has been. Therefore, on the back surface of the building board (1), air flows through the vent holes (18A, 18B) of the joint fitting (4) even if the joint fitting (4) is continuously arranged. I can do it.
[0006]
【Example】
The present invention will be described with reference to an embodiment shown in FIGS. 1 to 5. The building board (1) is, for example, an outer wall board for longitudinal connection, and is made of a wood fiber reinforced cement board or the like, and has a groove-like recess on the surface. (2) is arranged in parallel with multiple vertical lines.
Both ends or one end of the building board (1) is cut out from the surface to form a fitting protrusion (3). As shown in FIG. 2, the notch depth D is a recess in the building board (1). It is set deeper than the depth d in (2) (D> d). Accordingly, the concave portion (2) of the building board (1) is deleted by the notch at the end portion, and the concave portion (2) or its trace does not exist in the fitting projection (3).
[0007]
FIG. 3 shows a joint fitting (4) for joining the building board (1) and fixing it on the surface of the base (17). The joint metal fitting (4) comprises a substrate (5) and a plate receiving portion (6) erected on the substrate (5). 7A, 7B) are formed, and the rising step (7A, 7B) is provided with a plurality of vent holes (18A, 18B) side by side, and the upper rising step (7A) is on the lower side. The rising step portion (7B) is inclined more gently, and further, horizontal portions (8A, 8B) are extended outside the rising step portion (7A, 7B). A pair of upper and lower Γ-shaped receiving plates (9A, 9B) are provided on the plate receiving portion (6), and the fitting protrusions of the building plate (1) are placed inside the receiving plates (9A, 9B). The fitting sandwiching part (10A, 10B) of (3) is formed.
Projections (11A, 11B) are formed on the lower side of the edge of the backing plate (9A, 9B), and a step is provided below the middle of the rear wall of the upper fitting / clamping portion (10A). A contact surface (12) is formed, and a cushion material (13) is inserted into the inner back end of the lower receiving plate (9B). The cushion material (13) is made of a foam or non-woven fabric such as rubber or plastic.
[0008]
As shown in FIG. 4, a plurality of the above-mentioned metal fittings (4) are attached to the wall frame pillar (by a nail (15), a screw or the like through a nail hole (14) in the upper horizontal portion (8A) of the substrate (5). On the outer side of 16), it is continuously fixed on the surface of the horizontal trunk edge (17) which is the foundation passed between the frame columns (16). As shown in FIG. 5, the fitting protrusions (3) of the upper and lower building plates (1) are fitted in the upper and lower fitting sandwiching portions (10A, 10B) of the plate receiving portion (6) of the joint metal fitting (4). It is sandwiched.
[0009]
In this case, the end face of the lower fitting protrusion (3) of the upper building board (1) is the contact surface of the upper fitting / clamping part (10A) of the plate receiving part (6) of the fitting (4). Level against (12). Further, the end face of the upper fitting projection (3) of the fitting projection (3) of the lower building board (1) is fitted to the lower fitting clamp of the plate receiving portion (6) of the joint metal fitting (4). The cushion material (13) absorbs the expansion and contraction of the building board (1) against the cushion material (13) of the portion (10B).
[0010]
In the above configuration, as shown in FIG. 5, a predetermined interval t is maintained between the horizontal trunk edge (17) and the building board (1) by the joint fitting (4). Then, on the back side of the building board (1), air flows up and down as shown by arrows through the vent holes (18A, 18B) of the rising step portions (7A, 7B) of the joint fitting (4). Further, as shown in FIG. 2, the notch depth D at the end of the building board (1) is set deeper than the depth d of the recess (2) of the building board (1) (D> d) The concave portion (2) of the building board (1) is deleted at the end portion, and the concave portion (2) or its trace does not exist in the fitting projection (3).
[0011]
Therefore, as shown in FIG. 5, the fitting projection (3) of the building board (1) fitted and clamped by the upper and lower fitting clamping parts (10A, 10B) of the plate receiving part (6) of the joint metal fitting (4) And the fitting clamping part (10A, 10B) of the plate receiving part (6) of the joint fitting (4), that is, the upper surface of the fitting projection (3) and the Γ-shaped receiving plate (9A, 9B). Between the lower surface, there is no gap based on the concave portion (2) of the building board (1) or its trace.
Therefore, as shown by the arrow A in FIG. 5, rain water flowing down through the concave portion (2) of the building board (1) bypasses the front side of the joint fitting (4), and the inside of the joint fitting (4). Does not invade.
[0012]
In the case of the present invention, the upper rising step (7A) of the substrate (5) of the joint fitting (4) is inclined more gently than the lower rising step (7B). When the building board (1) is fitted to the joint metal fitting (4), the building board (1) is smoothly guided by the gently-inclined rising step (7A), so that the construction is easy.
[0013]
Although the said Example is related with the upper and lower joining part of a building board (1), this invention can also be applied also to the right and left joining part (horizontal joint) of a building board. In the embodiment of the present invention, one or both of the rising step portions (7A, 7B) of the substrate (5) of the joint fitting (4) are inclined, but they can be made vertical.
[0014]
【The invention's effect】
In the present invention, since the rising step portions are provided at both ends of the substrate of the joining bracket, the building board is bonded and fixed on the base surface with the joining bracket being maintained at a predetermined interval. Since the ventilation holes are provided in both of the parts, even when the joint fitting is continuously attached to improve the attachment strength of the building board and prevent warping, good ventilation on the back surface of the building board is ensured.
[Brief description of the drawings]
1 to 5 show an embodiment of the present invention.
[Fig. 1] Partial perspective view of a building board [Fig. 2] Partially omitted side sectional view of a building board [Fig. 3] Partially omitted perspective view of a joint bracket [Fig. 4] In a state where the joint bracket is mounted on a base surface Explanatory drawing [figure 5] Longitudinal sectional view of the building board joint part [figure 6] Explanatory drawing of the state in which the joining bracket in the conventional example is mounted on the base surface [Explanation of symbols]
1 Building board, exterior wall board
2 Recess
3 Mating protrusion
4 Joining bracket
5 Board
6 Plate holder
7A, 7B Rise stage
10A, 10B Mating and clamping part
18A, 18B Vent

Claims (5)

The board includes a board and a plate receiving part that is provided on both sides of the board and has a fitting and holding part on both sides. Rise stages are formed at both ends of the board, and both of the rise parts have air holes. A joint fitting characterized in that The joining bracket according to claim 1, wherein one of the rising step portions is inclined more gently than the other. The joining metal fitting according to claim 1 or 2, wherein a cushioning material is inserted into one or both inner rear ends of the fitting and holding portions on both sides of the plate receiving portion. The joint metal fitting according to claim 1 or 2 or 3 is continuously arranged and attached on the base surface, and ends of the pair of building boards to be joined to the fitting sandwiching portions on both sides of the plate receiving portion of the joint metal. Building board joint structure characterized by being fitted and clamped The surface of the building board is formed with a groove-like recess which reaches up to the end in parallel to the plurality of longitudinally fitted lacking deeper cut than the depth of the recess both ends of the building board from the surface 5. A construction structure for building boards according to claim 4, wherein a projection is formed, and the fitting projections of the building board are fitted and sandwiched between the fitting and holding parts on both sides of the plate receiving part of the joint metal fitting.