JPH0941616A - Building plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely fix building plates to each other by forming the building plate out of the raw material of the setting inorganic powder in which the wooden fiber reinforcing material is mixed, and achieving the cutting of the end/edge along the direction of orientation of the wooden fiber reinforcing material. SOLUTION: A building plate 1 is formed out of the raw material of the setting inorganic powder consisting of cement in which the wooden fiber reinforcing material 1A composed of wooden powder, excelsior, wooden pieces, etc., is mixed. A two-stage lower tongue part 4 provided with an upper stage lower tongue part 4A and a lower stage lower tongue part 4B is formed on one of edges 2 along the direction of orientation of the wooden fiber reinforcing material 1A, and an upper tongue part 5 provided with a fitting groove 5A is formed on the other building plate 1. A connection metal piece is interposed between the lower tongue part 4 and the upper tongue part 5 of the building plate 1, and an engagement piece of the connection metal piece is fitted to an engagement groove 5A of the upper tongue part 5 along an inclined face 4C of the lower stage lower tongue part 4B of the lower tongue part 4. Cutting of the tongue part is facilitated to greatly rationalize the manufacture of the building plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building board whose edges are actually processed, and more particularly to a building board suitable as an outer wall material.

[0002]

BACKGROUND OF THE INVENTION Recently, as a building board such as an outer wall material, an inorganic building board made of a curable inorganic powder mixed with a wood fiber reinforcing material is widely used. The inorganic building board is a curable inorganic powder mixed with a wood fiber reinforcing material, and if desired, a predetermined amount of water is added to the raw material, and the raw material is sprinkled onto a template to form a mat, and the mat is cured by pressure curing. It is manufactured by a dry method or a semi-dry method, or a wet method in which a slurry in which the curable inorganic powder is dispersed in water is formed on a porous paper making belt and formed to cure and cure the mat. In the case of the dry method or the semi-dry method, since the raw material is scraped off by a brushing roll or the like and sprayed on the template, the wood fiber reinforcing material in the raw material is oriented in the brushing direction of the brushing roll, and in the case of the wet method. Also, the wood fiber reinforcing material in the raw material is oriented in the moving direction of the porous papermaking belt. Therefore, in the building board obtained by cutting the original plate manufactured in this way into a predetermined size, there are an edge along the orientation direction of the wood fiber reinforcing material and an edge in a direction orthogonal to the orientation direction. To do. When the building board is used as an outer wall material or the like, the building board is fixed to a building skeleton pillar or a stud, and the connecting edges of the building boards are airtight at the connecting portion to enhance waterproofness. Is actually processed. The actual processing is performed on the upper and lower edges of the building board in the case of so-called horizontal pasting in which the longitudinal direction of the building board is horizontal, but recently, the actual processing is also performed on the left and right edges of the building board. There is also provided a configuration for surely fixing the two.

[0003]

2. Description of the Related Art When actually processing the edges of a building board,
Conventionally, a cutter such as a diamond cutter has been used, but no particular attention has been paid to the orientation direction of the wood fiber reinforcing material.

[0004]

However, in the case where fruit is formed by cutting on the edge orthogonal to the orientation direction of the wood fiber reinforcing material of the building board, it is more preferable than actually machining in the orientation direction of the wood fiber reinforcing material. The cutting process is difficult and the cutter wears quickly, resulting in poor cutting efficiency. In particular, there is a problem that it is difficult to perform cutting in the case of a fruit having a complicated shape.

[0005]

Means for Solving the Problems As a means for solving the above-mentioned conventional problems, the present invention provides a wood board for a building board (1) made of a curable inorganic powder mixed with a wood fiber reinforcing material (1A). Provided is a building board (1) in which an edge (2) along the orientation direction of the fiber reinforcing material (1A) has been subjected to actual cutting, and further, in the present invention, the wood fiber reinforcing material of the building board (1) ( Provided is a building board in which the edge (2) along the orientation direction of (1A) has been subjected to actual cutting of multiple shapes, and the edge (3) orthogonal to the orientation direction has been subjected to simple cutting actual processing. .

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Examples of the wood fiber reinforcing material (1A) used for the building board include wood powder, wood wool, wood chips, wood fibers, wood pulp, wood fiber bundles, waste paper defibrated material, etc. But,
It is also possible to use recycled wood scrap. As the wood scrap, for example, waste wood generated when dismantling a wooden building, sawdust and scraps generated from the lumber process, scraps of veneer lace generated from the plywood manufacturing process, thinnings of softwood, wood cement board There are scraps and scraps. Further, in the present invention, it is also possible to use a wood fiber reinforcing material other than wood such as bamboo fiber, bamboo chips, hemp fiber, palm fiber, sugar cane slag and the like. Further, the building board further includes organic fibers such as polyester fiber, polyamide fiber, acrylic fiber, acetate fiber, polyethylene fiber, polypropylene fiber and the like, inorganic fibers such as glass fiber, carbon fiber and ceramic fiber, or crushed cement plate, silica stone powder. , Silica powder, silica fume, shirasu balloon, perlite, mica, diatomaceous earth, dolomite, gypsum, wollastonite, fly ash, blast furnace slag, coal ash,
One kind or a mixture of two or more kinds of glass powder, siliceous clay, alumina, bentonite, calcium carbonate, magnesium carbonate and the like may be added. Further, a cement hardening accelerator such as calcium chloride, magnesium chloride, magnesium hydroxide, aluminum sulfate, sodium aluminate, and water glass, and a water repellent such as wax, paraffin, and silicon may be added in an amount of about several wt%.

As the curable inorganic powder used for the building board (1), there are, for example, Portland cement, jet cement, blast furnace slag cement, fly ash cement, alumina cement and the like. The curable inorganic powder and wood fiber The reinforcing material is usually mixed in a weight ratio of 100: 1 to 100: 15, and in the dry method, water is added as it is, and in the semi-dry method, water content is usually adjusted to 25 by adding water.
The mat is formed by adjusting the content to 35% by weight and then spraying it on the template. At this time, since the raw material is sprayed using a spraying device such as a brushing roll, the wood fiber reinforcing material in the raw material is brushed. Oriented in the direction. Further, in the wet method, the above raw materials are dispersed in water to form a slurry, and a mat is formed on a porous papermaking belt by using the slurry. At this time, the wood fiber reinforcing material in the raw material is the porous papermaking. Oriented in the direction of belt travel. The mat produced by the dry method or the semi-dry method is pressed and then cured at room temperature or under heat to cure the curable inorganic powder in the mat. Further, the mat produced by the above-mentioned wet method is, as it is or compressed, and is aged at room temperature or by heating, so that the curable inorganic powder in the mat is also cured.

As shown in FIG. 1, the building board (1) manufactured in this manner has edges (2, 2) along the orientation direction (indicated by an arrow in the figure) of the wood fiber reinforcing material (1A). And edges (3, 3) orthogonal to the orientation direction are present. Therefore, as shown in FIG. 2, one of the edges (2) along the orientation direction of the wood fiber reinforcement (1A) is composed of an upper lower real part (4A) and a lower lower real part (4B). The lower solid part (4B) has a two-step lower solid part (4) with an inclined surface (4C) formed at the top end, and the upper solid part (5A) with a mating groove (5A) formed at the lower end on the other side. 5) is formed. The real part (4,5) of such a complicated shape is formed by cutting with a cutter such as a diamond cutter.
In (4), first, the upper lower real part (4A) and the lower lower real part (4B) are cut, then the slope (4C) is cut, and the upper real part is cut.
In the case of (5), first the upper solid part (5) is cut and then the fitting groove (5A) is cut.

In the present invention, it is not always necessary to actually process the four sides, but in the present embodiment, as shown in FIG. 3, the edges (3, 3) orthogonal to the orientation direction of the wood fiber reinforcing material (1A). Also cut. That is, one end edge (3) is provided with a chamfered part (6A) at the upper end edge, and a stepped lower real part (6) having an upper stepped part (6B) underneath is cut, and the other end edge (6A) is cut. For 3), the upper solid part (7) with a chamfered part at the tip is cut. Unlike the actual machining of the complicated shape, the actual machining of such a simple shape is performed in one step.

That is, in the present invention, the actual cutting is performed on the edges (2, 2) along the orientation direction of the wood fiber reinforcing material (1A) of the building board (1) which is easy to perform the cutting, and the actual cutting is performed on the four sides. In the case of performing the cutting process, the wood fiber reinforcing material (1A) that is easy to cut is subjected to actual cutting of a complicated shape on the edge (2, 2) along the orientation direction, and the edge (3 , 3) is harder to cut than the edge (2,2), so actual cutting of a simple shape is performed.

When constructing an outer wall with the building board (1), for example, a connecting fitting (8) as shown in FIG. 4 is used. The connecting fitting (8) is composed of a trapezoidal base (8A) and an engaging piece (8B) having a Y-shaped cross section which is erected on the base (8A), and as shown in FIG. Connect the metal fittings (8) to the base material (10) with nails (9) or screws.
Fixed to the lower part of the building board (1) and interposed between the lower solid part (4) and the upper solid part (5) of the building board (1), and the engaging piece (8B) is attached to the lower solid part of the building board (1).
(4) Along the slope (4C) of the lower real part (4B) of the lower stage and the upper real part
Fit in the fitting groove (5A) in (5). In this case, a caulking material (11) is interposed at the connecting portion between the lower solid portion (4) and the upper solid portion (5). On the other hand, in the connection part on the edge (3,3) side of the building board (1),
The upper solid part (7) is superposed on the stepped lower solid part (6) as shown in. In this case as well, the caulking material (11) is interposed between the upper solid portion (7) and the stepped lower solid portion (6).

In addition to the above-mentioned embodiment, for example, as a simple shape of the lower solid, as shown in FIG. 7, the lower solid portion (6) is directly formed on the lower side where the chamfered portion (6A) is provided without interposing the upper step portion. Good.

[0013]

Therefore, according to the present invention, the cutting of the real part is very easily performed, and the manufacturing of the building board is greatly rationalized.

[Brief description of drawings]

 1 to 7 show an embodiment of the present invention.

[Figure 1] Perspective view of a building board before actual processing

FIG. 2 is a partial perspective view of a real part of a complex shape.

FIG. 3 is a partial perspective view of a simple shape real part.

FIG. 4 is a perspective view of a connection fitting.

FIG. 5 is a sectional view of a connecting portion of a real part of a complicated shape.

FIG. 6 is a sectional view of a connecting portion of a simple shape real part.

FIG. 7 is a partial perspective view of a simple-shaped real part according to another embodiment.

[Explanation of symbols]

 1 Building board 1A Wood fiber reinforcement 2 Edge along the orientation direction of wood fiber reinforcement 3 Edge orthogonal to the orientation direction of wood fiber reinforcement 4 Lower solid part 4A Upper lower real part 4B Lower lower real part 4C Slope 5,7 Upper solid part 5A Mating groove 6 Stepped lower solid part 6A Chamfer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location C04B 18:24 111: 20)

Claims (3)

[Claims] 1. A building board, which is obtained by actually cutting a building board made of a curable inorganic powder mixed with a wood fiber reinforcing material, along an orientation direction of the wood fiber reinforcing material. 2. A cutting board having a plurality of shapes is cut at an edge of a building board, which is made of a curable inorganic powder mixed with a wood fiber reinforcing material, along an orientation direction of the wood fiber reinforcing material, and is orthogonal to the orientation direction. A building board characterized by the fact that the edge has been subjected to actual cutting with a simple shape 3. One of the plurality of real parts is a two-step lower real part having an upper step and a lower step and having an inclined surface at the tip of the upper surface of the lower step, and the other has a fitting groove at the rear end of the lower surface. The building board according to claim 2, which is the upper solid part formed.