JP2002240007A - Wood structural materials - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a wooden structural material that can reduce costs by overcoming limitations in strength in order to contribute to the spread and spread of wooden structures. SOLUTION: A wood-based structural material 1 according to the present invention is formed by combining laminated wood-based plate-like materials 2 and is united with a wood-based plate-like material 2 with a steel plate 3 interposed therebetween. Placed on the outer side surface of the wood-based plate-like material 2-1 on which the steel plates 3 are laminated,
It is interposed between the laminated wood-based plate members 2, and is characterized by forming protrusions on at least one side surface of the steel plate and combining the wood-based plate members by fastening bolts 4. It is manufactured inexpensively while keeping the beauty of the wood, suppressing the occurrence of creep and the like, and making the strength uniform.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden structural material, and more particularly to a wooden structural material which is excellent in strength and rigidity and is inexpensive.

[0002]

2. Description of the Related Art In recent years, attention has been paid to the softness and warmth of wooden materials, and their use has been increasing.

[0003] As a wood resource for producing wood-based structural materials, there are many domestically produced cedars planted after the war, but their use is delayed due to their high cost.
As countermeasures against these problems, the use of glued laminated wood, which is made by combining wood lamina, which is made by cutting wood fines or fibrous wood with an adhesive or plastic, is also increasing. It has been pointed out that due to the high cost and the bulk of the processing cost, it is expensive as a structural material without reducing the manufacturing cost.

[0004] In order to reduce the cost of the wood-based material as described above, it has been considered to cope with the problem by directly using a wood-based plate-like material that requires less processing time. And the limitation of strength due to the non-uniformity of the material has been regarded as a problem.

[0005]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve the above-mentioned problems and to contribute to the spread and spread of wood-based structures. It aims to provide wood-based structural materials that can reduce costs.

[0006]

The wooden structural member according to the present invention is basically a wooden structural member obtained by combining laminated wooden plate members with a steel plate interposed between the wooden structural members. Specifically, it is disposed on the outer side surface of the laminated wooden plate-like material, or is interposed between the laminated wooden plate-like materials, and is disposed on at least one side surface of the steel plate. It is characterized in that the projections are formed and the wooden plate-like material is united by tightening bolts.

As a result, the wood-based structural material is manufactured at low cost while maintaining the beauty of the wood while suppressing the occurrence of creep and the like, and attaining uniform strength.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A wooden structural member according to the present invention is a wooden structural member obtained by combining laminated wooden plate members, wherein a steel plate is interposed between the wooden structural members, Hereinafter, embodiments of each invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of a wooden structural material according to the present invention. FIG. 1 (a) is a front view of the wooden structural material, and FIG. 1 (b) is a side view of the wooden structural material. FIG.

The wooden structural member 1 of the present embodiment has a plurality of veneers 2 made of a wooden plate-like material superposed on a central portion thereof.

In the present embodiment, a flat plate is exemplified as the wood-based plate, but the wood-based plate in the present invention is limited to only the flat plate. However, various shapes such as a laminated body of single veneer and a square bar are collectively referred to, and a wooden structural material can be appropriately combined and configured.

The outer veneers 2-1 and 2-1 arranged on both sides of the wooden structural material 1 are stacked with the inner veneer 2 with steel plates 3 and 3 interposed therebetween. Veneer 2 on both sides
-1, 2-1 are united by fastening bolts 4, 4 penetrating the whole.

In the present embodiment, the uniting of the wooden structural material 1 is based on the fastening of the bolts 4, 4, but between the veneers 2, between the veneers 2 and the steel plate 3 and between the veneers 2. -1, 2-1 and the steel plates 3, 3 can be joined to each other with an adhesive to enhance the rigidity of the united structure.

Further, since the holes 5 for recessing the bolts and nuts from the surfaces of the veneers 2-1 and 2-1 are formed, the appearance of the wooden structural material 1 is sufficiently ensured. I have.

FIG. 2 shows another embodiment of the wooden structural material according to the present invention. FIG. 2 (a) is a front view of the wooden structural material, and FIG. It is a side view.

Also in the present embodiment, the wooden structural material 1
In 1, a plurality of veneers 12 made of a wood-based plate-like material are superimposed and stacked on a central portion.

Further, similarly to the above embodiment, the outer veneers 12-1 and 12-1 arranged on both sides of the wooden structural material 11 are provided.
2-1 is a steel plate 13, 13 between the inner veneer 12 and the veneer 12.
However, the united form of the wooden structural material 11 is different from that of the above-described embodiment, and the spaces between the veneers 12 are restrained by the dowels 14 and united by bonding with an adhesive. ing.

For this reason, between the veneers 12-1, 12-1 and the inner veneer 12, the interposed steel plate 13 is provided with a dowel 1.
4 and 14 penetrate, and the veneer 12 and the steel plate 13 are joined by an adhesive.

In the present embodiment, unlike the above-described embodiment, since the holes 5 for recessing the bolts and nuts from the surfaces of the veneers 12-1 and 12-1 are not formed, the wooden structure is not used. The aesthetic appearance of the material 11 is further maintained.

In the above-described embodiment, the wooden structural material is joined by an adhesive. However, when there is a concern about strength when adopting as structural timber for a building, the structure is particularly suitable. Although not shown, it is also possible to provide an embodiment in which the strength is reinforced by adding a bolt using a bolt and a nut that penetrate the whole as in the embodiment described first. .

In the above-described embodiment, an example in which the steel plate is arranged only inside the outer veneer has been described. However, the arrangement of the steel plate may be variously changed depending on the application to which the structural wooden material is applied. It is also possible.

FIG. 3 shows another embodiment of the wooden structural material embodying the above. In the embodiment shown in FIG. 3A, a wooden structural member 21 is laminated by stacking a plurality of veneers 12 made of a wooden plate-like material on a central portion.

However, in the present embodiment, the outer veneers 22-1, 2-2, 2-5 disposed on both sides of the wooden structural member 21 are provided.
In 2-1, the steel plates 23, 23 are united in a state of being arranged on the outer surface thereof, and the strength of the steel plates 23, 23 efficiently corresponds to the external force applied to the wooden structural member 21.

A wooden structural member 31 according to another embodiment shown in FIG. 3B has a plurality of veneers 1 made of a wooden plate.
2 are stacked.

On the outer veneer 32-1 disposed on one side of the wooden structural member 31, a steel plate 23 is disposed on the outer surface thereof, and the outer veneer 32-1 disposed on the opposite side of the wooden structural member 31 is disposed. The inside of the veneer 32-1 is united with the steel plate 23 interposed therebetween, and is dealt with by a configuration that takes into consideration the aesthetic appearance in the arrangement where the wooden structural material 31 is used.

In another embodiment shown in FIG. 3C, the wooden structural member 41 is composed of a plurality of veneers 1 made of a wooden plate.
2 are superimposed on the central portion and are laminated.

The outer veneers 42-1 and 42-1 disposed on both sides of the wooden structural member 21 are provided with steel plates 23 and 23 on the inner surface thereof. The steel plates 23 are also united in a state where the steel plates 23 are arranged at the portions, and each steel plate 23 is made to cope strongly with the stress applied to the wooden structural material 41.

In the above-described embodiment, the interposed steel plate is formed in a flat plate shape and is described as being bonded to a veneer with an adhesive or the like. As a material, it is also an important issue to strengthen the bonding strength between a veneer and a steel plate.

[0029] The improvement of the joining force can be dealt with in the case of a steel sheet whose surface shape is relatively easy to process. However, basically, the unevenness is formed on the surface of the steel sheet. It is also effective to adopt as a commercially available striped steel sheet or a commercially available floor steel sheet having projections formed on the surface.

In this embodiment, since a commercial steel plate is only purchased and adopted, it is advantageous in terms of cost in that machining cost is saved, but it is advantageous in terms of dimensions such as the thickness of the steel plate. In some cases, studies are needed to complete it as a wooden structural material.

The embodiment shown in FIG. 4 is an example which can be adopted in the above case. In the present embodiment, a relatively thin steel plate 24 is processed, and as shown in FIG. 4A, a claw-shaped projection 25 is punched out on one surface 26 of the steel plate 24 at a predetermined interval. It is to be arranged.

Accordingly, in the case of manufacturing each wood-based structural material with the steel plate 24 interposed between the veneers, the claw-shaped projections 25 bite into the surface of the corresponding veneer to prevent mutual peeling. Not only to increase the resistance, but also to exert a strong resistance against frictional force. Even if external force is applied to the united wood-based structural material, the joining force is strengthened and sufficient It will exert a high proof stress.

In the embodiment shown in FIG. 4 (b), the projections in the above embodiment are formed on both sides of the steel plate. As shown in the drawing, the protrusion is opposite to the one surface 26 of the steel plate in the above embodiment. A claw-shaped projection 29 is formed on one surface 28 of the steel plate 27 by punching out in a direction opposite to the projection 25 on the one surface 26.

Thus, when a wooden structural material is manufactured by disposing the steel plates 27 between the veneers, the bonding strength is strongly exerted on each veneer. This greatly increases the proof stress.

In this embodiment, although there is no particular description about the means for combining the wooden structural materials, similarly to the above-described embodiment, bolting is performed and, in addition to this, a single plate is inserted between By bonding between the plates and the steel plates 27 and between the veneers 2-1 and 2-1 and the steel plates 27 and 27 with an adhesive,
It is also possible to enhance the rigidity of the union.

As described above, the wood-based structural material according to the present invention is basically a wood-based structural material obtained by combining laminated wood-based plate materials with a steel plate interposed between the wooden-based plate materials. Since they are united, it is possible to suppress the occurrence of creep and the like while maintaining the beauty of the wood, and to manufacture the lumber inexpensively while making the strength uniform.

Although the present invention has been described in detail with reference to the embodiment, the wood-based structural material according to the present invention is not limited to the above-described embodiment, and the wood-based plate-like material, steel plate, It is a matter of course that various changes can be made to the material and type of the material and the form of the wooden structural material without departing from the spirit of the present invention.

[0038]

According to the first aspect of the present invention, there is provided a wooden structural member which is obtained by combining laminated wooden plate members with a steel plate interposed between the wooden plate members. Therefore, the following effects are exhibited. It can be processed while maintaining the beauty of the wood. Generation of creep and the like can be suppressed. The strength can be made uniform. Wood-based structural materials can be manufactured at low cost.

According to a second aspect of the present invention, there is provided the wooden structural member according to the first aspect of the present invention, wherein the wooden structural member is disposed on an outer side surface of the wooden plate having the steel plates laminated. Therefore, in addition to the above-described effects, an effect of effectively treating the strength of the steel sheet with respect to an external force and thereby improving the strength is exhibited.

According to a third aspect of the present invention, there is provided the wooden structural member according to the first or second aspect, wherein the wooden structural member is interposed between the wooden plate-like members in which the steel plates are laminated. Therefore, in addition to the above-described effects, the effect of improving the strength is considered while considering the aesthetics of the wooden structural material.

According to a fourth aspect of the present invention, there is provided the wooden structural member according to any one of the first to third aspects, wherein a protrusion is formed on at least one side surface of the steel plate. Therefore, in addition to the above effects, the effect of strengthening the wooden structural material by strengthening the bonding strength between the steel plate and the wooden plate material is exhibited.

According to a fifth aspect of the present invention, there is provided the wooden structural member according to any one of the first to third aspects, wherein the wooden structural member is combined by tightening bolts. Because of its features, it has the effect of strengthening the bonding strength of wood-based structural materials.

[Brief description of the drawings]

FIG. 1 is a front view (a) and a side view (b) showing an embodiment of a wooden structural material according to the present invention.

FIG. 2 is a front view (a) and a side view (b) showing another embodiment of the wooden structural material according to the present invention.

FIG. 3 is a view showing the form of steel plate intervening in the wooden structural material of the present invention.

FIG. 4 is a diagram showing the surface shape of a steel sheet in the wood-based structural material of the present invention.

[Explanation of symbols]

1, 11, 21, 31, 41 Wood-based structural material, 2, 1
2 Single plate, 2-1, 12-1, 22-1, 32-1, 4
2-1 Outside veneer, 3, 13, 23, 24, 27 steel plate, 4 bolts, 5 holes, 14 dowels, 25, 2
9 Claw-shaped protrusions, 26, 28 Surface of steel plate

Claims (5)

[Claims] 1. A wooden structural member obtained by combining laminated wooden plate members, wherein the wooden structural member is united by interposing a steel plate on the wooden plate member. 2. The wooden structural member according to claim 1, wherein the steel plate is disposed on an outer side surface of the laminated wooden plate member. 3. The wooden structural member according to claim 1, wherein the steel plate is interposed between the laminated wooden plate members. 4. The wood-based structural material according to claim 1, wherein the steel sheet has projections formed on at least one side surface. 5. The wood-based structural material according to claim 1, wherein the wood-based plate is united by fastening bolts.