JPH0157219B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rectangular hollow-molded exterior wall plate having a plurality of longitudinally parallel through holes made by extrusion molding of a plastic material, and a method for attaching the same.

Exterior wall panels made of plastic materials such as cement-based materials are usually made by extrusion molding because long and short lengths can be obtained freely.

Generally, exterior wall panels made by extrusion molding of plastic materials are made in a line in the extrusion direction, that is, in a plane perpendicular to the longitudinal direction, for the purpose of reducing the weight of the exterior wall panels, reducing costs, and improving heat insulation. A hollow molded exterior wall board with a large number of parallel through-holes that open side by side and pass through the exterior wall board in the vertical direction, and both horizontal edges have a real structure or an interlocking structure during construction. It is often formed for the purpose of convenience and waterproof function.

When the above-mentioned hollow molded exterior wall board is attached to a structure, it is fixed with screws or nails perpendicular to the flat surface of the exterior wall board.

However, when screwed or nailed from the outside surface of the hollow-molded exterior wall board,
The heads of screws, etc. are exposed, spoiling the aesthetics. Also, if the boundary with the adjacent building is narrow, it will be difficult to install from the outside of the external wall board.Furthermore, in order to reduce weight and improve insulation, it is necessary to install through-holes. In order to increase the cross-sectional area of the hole, the wall thickness between the through hole and the mounting side external wall board surface becomes thinner, and when using nails, etc., the mounting stress is concentrated on the fixing part, which reduces the mounting strength. In order to compensate for this, there were problems such as having to increase the number of nails, etc. used.

As a solution to this problem, it may be possible to reduce the height of the through-hole in the part where it is fastened, increase the thickness between the through-hole and the plate surface to increase strength, and then fasten it at this thick part.

However, when making a hollow-molded exterior wall plate in which the thickness of the plate at the through-hole portion differs partially by extrusion molding of a cement composition, etc., the wall thickness partially changes, so the extrusion molding die The discharge linear velocity becomes non-uniform over the entire width, causing distortion in the width direction on the surface of the molded product after drying and hardening, making it difficult to obtain a hollow molded exterior wall board with a planar outer surface.

As a result of intensive research to solve the above problem, the present inventors have found that when increasing the wall thickness between the through hole and the plate surface, instead of increasing the wall thickness of only one through hole, It has been found that if the wall thickness of one or more through holes adjacent to the thick through hole is successively changed to a predetermined thickness, no distortion occurs in the plate surface during extrusion molding and curing.

The present invention was made based on the above findings, and when extruding and curing a hollow molded exterior wall board,
This relates to a hollow molded plate with no distortion on the plate surface. Furthermore, when this molded board is attached to a structure, etc., it can be firmly attached without increasing the number of mounting screws, etc., and the heads of the mounting screws, etc. are not exposed on the surface of the wall board. The purpose is to provide an attachment method.

The gist of this is that ``a through hole near the edge of a rectangular plate having multiple parallel through holes in the longitudinal direction is made thicker between the plate surface and one or more through holes adjacent to this through hole. A hollow-molded exterior wall board characterized by having a wall thickness that gradually decreases in a direction away from the through hole.
Furthermore, ``A plate-shaped receiving metal fitting is inserted into the thicker side of the through-hole between the plate surface of the hollow molded exterior wall board, and a fixing metal fitting is applied to the outer plate surface. A method for attaching a hollow-molded exterior wall board, comprising: fixing the fastening metal fittings, the thick wall part of the external wall board, and the receiving metal fittings together, and fixing the other end of the fastening metal fittings to the structure.''

The present invention will be explained below with reference to the drawings.

FIG. 1 is a front cross-sectional view showing an embodiment of a hollow-molded exterior wall board according to the present invention. In the cross section of this hollow molded exterior wall board A, a plurality of parallel through holes 1 are opened in a row, each having a substantially rectangular shape and extending in the vertical direction, and the horizontal edges of the hollow molded exterior wall board A are The actual structures are 2 and 3. The above-mentioned through hole 1...
The wall thickness of the space 4a between one through hole 4 near the edge of the hollow molded outer wall plate A and the inner surface 5 of the hollow molded outer wall plate A (hereinafter referred to as the thick wall part) is the same as that between the other through holes 1 and the inner surface 5 (hereinafter referred to as the thin wall part). It is significantly thicker than 1a (referred to as part),
Furthermore, the thickness of the space 6a between the through hole 6 adjacent to the through hole 4 and the inner surface 5 is intermediate between the thickness of the thin portion 1a and the thick portion 4a.

In this way, when providing a thick through hole 4, there is a gap 6 between the adjacent through hole 6 and the inner surface 5.
By gradually reducing the thickness of a and transferring it to the through hole 1, it is possible to prevent distortion from occurring on the plate surface due to extrusion molding.

In the above explanation, only one through hole 6 is arranged between the through hole 4 and the through hole 1, but if there is a large difference in thickness between the thin part 1a and the thick part 4a, this is arranged in multiple stages. It is preferable to reduce the change in wall thickness in one step.

In addition, Figures 2 to 6 show hollow molded exterior wall panels A.
1, the same parts as in FIG. 1 are given the same reference numerals and their explanations will be omitted.

As shown in FIG. 2, a receiving metal fitting 11 is inserted into the through hole 4 of the hollow molded outer wall plate A, and the receiving fitting 11 abuts almost the entire length of the inner surface of the thick wall portion 4a of the through hole 4. One end of a fastening metal fitting 12 (described later), which is present along the outer surface of
It is fixed according to the spacing of... When the hollow molded outer wall plates A and A are engaged with the main pieces 2 and 3, an outer wall B is formed. FIG. 3 shows a view taken along the - line in FIG. 2.

As shown in FIGS. 4 to 6, the fastening metal fitting 12 has a shape (short angle material shape) in which a rectangular plate is bent at the center in the longitudinal direction. A long hole 14 extending perpendicularly to the portion 12b is drilled, and a screw hole 15 for attachment to the base column 13 is bored in the flat plate 12c at the other end. The fastening metal fitting 12 is arranged on the inner surface of the thick wall portion 4a so that the extending direction of the elongated hole 14 matches the extending direction and position of the hole 4, and is inserted through the elongated hole 14 to The portion 4a is fixed by a self-drilling screw 16 screwed into the receiving fitting 11. Further, the self-drilling screw 17 inserted through the screw hole 15 of the fastening fitting 12 fixed to the hollow molded outer wall board A is screwed into the foundation column 13,
The hollow molded outer wall board A is fixed. Note that the screw hole 15 may be directly drilled with a self-drilling screw 17 and attached to the base column 13 without having to be drilled in advance.

Next, the operation of the hollow-molded exterior wall panel according to the present invention constructed as above and its attachment will be explained.

The through hole 4 of the hollow molded outer wall board A has a thick wall portion 4a, and a receiving fitting 11 is inserted therethrough.
A plurality of fastening fittings 12 are arranged in the length direction of the through hole 4 by screws 16 screwed into the through holes 4.
are locked, the fastening metal fittings 12 are fixed uniformly and firmly over the entire length of the hollow-molded exterior wall board A, and the hollow-molded exterior wall board is also reinforced. Further, since the screw 16 is inserted into the elongated hole 14, the base column 1
3, even if the position of the base pillar 13 is slightly different, it can be easily fixed with the self-drilling screw 17 by adjusting the position of the fastener. The screws 16 are fully tightened after the positions of the upper and lower hollow molded outer wall boards A that engage the main body parts 2 and 3 are corrected. The above screw 16,
17, if a self-drilling screw is used as described above, it is not necessarily necessary to previously drill a screw hole in the receiving metal fitting 11 and the thick wall portion 4a, and the installation of the outer wall board A is easy.

Further, in the present invention, the lateral edges are the main body 2,
3, as shown in FIG. If each hollow molded external wall board A is fixed, the lower edge of the upper hollow molded external wall board A presses the upper edge of the lower hollow molded external wall board, so that sufficient mounting strength can be obtained by fixing only one edge. In addition,
It goes without saying that the through holes 4 having the thickened portions 4a may be provided near the edges on both sides and attached using the upper and lower two-stage receiving fittings 11. In this case, the upper edge of the lower hollow molded outer wall plate Since there is no need to press down from the lower edge of the upper stage, it can also be applied to simple butted structures other than real structures and interlocking structures. Further, since the receiving fitting 11 extends over the entire length of the through hole 4, stress concentration during fixing with screws etc. of the hollow molded outer wall plate A is eliminated and is dispersed, which is preferable from the viewpoint of increasing the fixing force and degree of reinforcement. The number of receiving metal fittings 11 is not limited to one, and a desired number of plural receiving metal fittings 11 may be used. In addition, the fastening metal fitting 1
The extending direction of the elongated hole 14 of 2 needs to match the extending direction of the through hole 4, but the extending direction of the elongated hole 14 with respect to the fastening metal fitting 12 needs to be selected appropriately depending on the base to which it is installed. .

As described above, the method of attaching the hollow-molded exterior wall plate according to the present invention using the hollow-molded exterior wall plate, the receiving metal fittings, the fastening metal fittings, and the screws is as follows: Since the wall thickness gradually decreases, a hollow molded exterior wall board with a flat surface can be obtained by extrusion molding, and will not warp even when dried.

(2) This installation method is designed to be fastened from the indoor side, so a. The fastening screws do not protrude from the outside of the exterior wall, so it is superior in terms of waterproofing and aesthetics.

b. It is economical because it requires less scaffolding.

c Can be constructed in cases where the boundary between adjacent buildings is narrow.

(3) Since the receiving metal fittings are installed along the entire length of the hollow-molded exterior wall board, the mounting position of the fastening metal fittings can be freely selected according to the fastening position of the base.

(4) The receiving bracket is inserted over the entire length of the thick wall side of the through hole in the exterior wall board, and is fixed to the hollow molded exterior wall board at multiple parts, so the strength of the exterior wall board and the fixing strength of the fastening bracket are increased. significantly increased.

(5) Since self-drilling screws can also be used for attachment to the base, a. Installation is easy as there is no need to drill pilot holes in the hollow-formed exterior wall board bracket, base, etc.

b. Screw fixing will not become loose due to vibrations of the building.

(6) Since the hollow-molded exterior wall panels are attached to the base using a pin structure, the hollow-molded exterior wall panels have good ability to follow deformation between the building's floors during earthquakes and other events.

It has many advantages such as:

[Brief explanation of drawings]

FIG. 1 is a cross-sectional front view showing one embodiment of a hollow molded exterior wall board according to the present invention, and FIGS. 2 to 6 are
FIG. 2 is a diagram illustrating a method for attaching a hollow molded exterior wall board according to the present invention, and FIG. 2 is a diagram showing the outside wall formed by attaching the hollow molded exterior wall board to a vertical foundation column, and is a view taken along the - line in FIG. 3. , FIG. 3 is a view taken along the - line in FIG. 2, FIG. 4 is an enlarged view of the main part of FIG. 2 in partial cross-section, and FIG. is a view taken along the - line arrow in FIG. 1...Through hole, 1a...Between the through hole 1 and the inner surface (thin wall part), 2, 3...Real structure, 4...Through hole with low height, 4a...Between the through hole 4 and the inner surface Between the surface (thick wall part), 5...Inner surface, 6...Through hole at a height between through holes 1 and 4, 6a...Between through hole 6 and inner surface, 11... Receptacle Metal fitting, 12...Fixing metal fitting, 12a...Flat plate at one end, 12b...Bending part,
12c... flat plate at the other end, 13... base pillar, 14...
...Elongated hole, A...Hollow molded outer wall board, B...Outer wall.

Claims (1)

[Claims] 1. A rectangular plate having a plurality of parallel through-holes in the longitudinal direction, the through-hole near the edge of the plate is thickened between the through-hole and the plate surface, and one or more of the through-holes adjacent to the through-hole are thickened. A hollow molded outer wall board characterized in that the thickness of the through hole is gradually thinned in a direction away from the through hole. 2. A plate-shaped receiving fitting is inserted into the thicker side of the through-hole between the hollow molded outer wall plate and the plate surface of claim 1, and fixed to the outer plate surface. A method for attaching a hollow molded exterior wall board, comprising: abutting metal fittings, fixing the fastening metal fittings, the thick wall part of the external wall board, and the receiving metal fittings together, and fixing the other end of the fastening fittings to a structure.