JP2000160804A - Joining fitting of construction plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dew condensation on the rear side of a construction plate by intermittently providing a plurality of spacer protrusions on the rear face of a base board at a prescribed interval. SOLUTION: On a construction plate 1 and the base board of a joining fitting 4, the beads 7, 7 of the base board 5 form the gap S1 of width d1 as a spacer. A gap is formed of the spacer protrusion 16 on a lateral furring strip 20 and the base board of the joining fitting 4. Air mainly circulates through the gap, mainly vertically circulates through the gap between the right and left spacer protrusions by a temperature difference, and also horizontally circulates through the gap between the row of the spacer protrusions 16. Rainwater flowing down along the recess part 2 of the construction plate 1 is drained to the outside of a receiving plate 8 from a weep hole 8B by providing the weep hole 8B on the side of the upper side receiving plate 8 of the joining fitting 4. Thereby rainwater does not stay in the inside of the receiving plate and dew condensation can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for a building board such as an outer wall for vertical joint.

[0002]

2. Description of the Related Art As shown in FIG. 6, in order to construct an outer wall using this type of building board (1A), for example, a lateral trunk edge (20) fixed to the outside of a wall frame pillar (19) is used. The joining fitting (4A) is attached, and the pair of upper and lower building boards (1A) is joined and fixed by the joining fitting (4A). The connection fitting (4A) includes an upper and lower substrate (5A, 6A) and a plate receiving portion (7A) provided integrally between the upper and lower substrates (5A, 6A), and the plate receiving portion (7A) has a cross section. It is composed of a human-shaped base (8A) and an eave (9A) extending vertically from the top of the base (8A), and is formed on both sides of the plate receiving part (7A). A pair of building boards (1) to be joined to the holding parts (10A, 11A)
The pair of building boards (1A, 1A) are joined by fitting upper and lower ends (3A, 3A) of the pair of building boards (1A, 1A).

[0003]

In the above-mentioned conventional construction, there is no gap between the horizontal waist edge (20) and the joint fitting (4A), so that the upper and lower ventilation is not performed smoothly, and the construction board (1A) is Problems such as dew condensation on the back surface occur.

[0004]

According to the present invention, as a means for solving the above-mentioned conventional problems, a horizontally long substrate (5) and a fitting and holding portion (10, 11) a board receiving part (8, 9) having a plurality of spacer projections (16) intermittently provided at predetermined intervals on the back surface of the substrate (5). (4). The spacer projections (16) are, for example, ridges provided in a staggered manner along the horizontal direction, or ridges provided intermittently in a plurality of rows along the horizontal direction. Preferably, the projection (16) has an L-shaped cross section.

[0005]

The joint (4) of the present invention is fixed to the base material by nails or the like. Since spacer projections (16) are intermittently provided at predetermined intervals on the back surface of the substrate (5) of the joining metal fitting (4), the space between the joining metal fitting (4) and the base material is provided. There are left, right, up and down gaps for ventilation. As a result, ventilation in the up, down, left, and right directions on the back side of the building board (1) stretched on the base material by the joint fitting (4) is secured.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 4. The building board (1) is, for example, an outer wall board for vertical joint, and is made of a wood fiber reinforced cement board or the like. A plurality of groove-shaped concave portions (2) are provided vertically in parallel to form a pattern.

FIGS. 2 and 3 show a joint (4) for joining the building board (1) and fixing it on a ground surface.
The joining bracket (4) comprises a substrate (5) and a plate receiving portion (6) erected on the substrate (5), and beads (7, 7), and the plate receiving portion (6) comprises a pair of upper and lower Γ-shaped receiving plates (8, 9), and the receiving plates (8, 9)
On the inner side, fitting holding portions (10, 11) for fitting the ends (3) of the building board (1) are formed. A ridge (12, 13) is formed below the edge of the receiving plate (8, 9), and the upper receiving plate is formed.
An abutment surface (14) is formed below the middle of (8) through a step portion, and the inside of the lower receiving plate (9) is abutted from the upper surface of the receiving plate (9). The contact piece (15) is provided. Further, a plurality of spacer projections (16), which are ridges having an L-shaped cross section, are provided in a staggered manner along the lateral direction from the back surface of the substrate (5) of the joining metal fitting (4). On the upper side of 5), a nailing groove (17) is provided in the lateral direction.

[0008] As shown in FIG. 4, the joining metal fitting (4) is fixed to the outside of the wall frame pillar (19) by a nail (18), a screw or the like through a nailing groove (17) of the substrate (5). It is fastened to the horizontal torso rim (20) spanned between the skeletal columns (19). The tip of the nail (18) is fixed by the nailing groove (17), and nailing is facilitated. The upper and lower end portions (3, 3) of the upper and lower building boards (1, 1) are fitted and held in the upper and lower fitting holding portions (10, 11) of the plate receiving portion (6) of the joint fitting (4), respectively. You.

In this case, the upper end of the lower building board (1)
The end face of (3) is brought into contact with the edge of the abutment piece (15) inside the lower receiving plate (9) of the plate receiving portion (6) of the joining metal fitting (4) to level out, Connect the end surface of the lower end (3) of the upper building board (1) to the upper receiving plate (8) of the plate receiving portion (6) of the joint fitting (4).
Leveling is performed against the contact surface (14).

[0010] In the above configuration, the building board (1) and the joint fitting
(4) the substrate (5) of the bead of the substrate (5) (7,7) is formed a gap S ₁ having a width d ₁ shown in FIG. 4 become spacers, also Yokodoen ( The gap S having a width d ₂ shown in FIG.
₂ are formed. Thus air mainly flows through the clearance S _2. In the gap S ₂ , air flows up and down mainly through a gap S ₄ between the left and right spacer projections (16) due to a temperature difference, but passes through a gap S ₃ between rows of the spacer projections (16). And circulate on both sides. A drain hole is provided on the side of the upper receiving plate (8) of the joint fitting (4).
If (8B) is provided, rainwater flowing down the concave portion (2) of the building board (1) is discharged from the drain hole (8B) to the outside of the receiving plate (8), The rainwater does not accumulate inside the receiving plate (8). In addition, since the positions of the ridges (12, 13) and the beads (7) are misaligned, there is an advantage that the building boards can be fitted during construction.

In addition to the above embodiment, in the present invention, the spacer projections of the joint fitting (4) may have any shape. For example, as shown in FIG. 5, the spacer projections (16A) having an L-shaped cross section are staggered. it may be provided intermittently through a plurality of rows predetermined gap S ₄ laterally not. The spacer projection may be a ridge having a rectangular cross section, or may be a warp-shaped projection instead of a ridge.

Although the above embodiment relates to the joints used for the upper and lower joints of the building board (1), the present invention is also applied to the joints used for the left and right joints (transverse joints) of the building board. You can do it.

[0013]

According to the present invention, since the ventilation on the back side of the building board is ensured particularly in the vertical direction, dew condensation on the back side of the building board is effectively prevented.

[Brief description of the drawings]

 1 to 4 show one embodiment of the present invention.

FIG. 1 is a partial perspective view of a building board.

FIG. 2 is a partially omitted perspective view of a joining fitting.

FIG. 3 is a perspective view of a back side of a part of a joint fitting;

FIG. 4 is a longitudinal sectional view of a joint portion of a building board.

FIG. 5 is a perspective view of the back side of a joint fitting according to another embodiment.

FIG. 6 is a longitudinal sectional view of a joint part of a building plate of a conventional example.

[Explanation of symbols]

 1 Building board 4 Joining fitting 5 Board 6 Board receiving part 10,11 Fitting holding part 16,16A Spacer protrusion

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[Procedure amendment]

[Submission date] November 26, 1998 (1998.11.
26)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

Claims (4)

[Claims] A plurality of spacer projections intermittently arranged at predetermined intervals on a rear surface of the substrate, the substrate having a horizontally long substrate and a plate receiving portion which is provided upright on the substrate and has fitting holding portions on both sides. A metal fitting for a building plate, which is provided. 2. The joint according to claim 1, wherein the spacer projections are ridges provided in a staggered manner along the lateral direction. 3. The metal fitting for a building board according to claim 1, wherein said spacer projections are ridges provided intermittently in a plurality of rows along the horizontal direction. 4. The projection according to claim 2, wherein said projection has an L-shaped cross section.
Joints for building boards described in