JP3252275B2 - Bamboo-based building material and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building material obtained by combining a laminated bamboo timber and a steel pipe.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 7-217055 Bamboo material (constitution) A mixed material obtained by mixing an adhesive with a bamboo chip is press-molded at a high temperature and a high pressure. A bamboo material that is excellent in strength, durability, etc., easy to process, and lightweight and inexpensive can be obtained. 7-38347 bamboo pillar
The bamboo is cut in the length direction and the horizontal cross section is made into a rectangular shape with a horizontal width to form a thin and thin bamboo material that is slightly thinner upward, and the adjacent bamboo materials are attached upside down and glued in parallel. There is a bamboo pillar characterized in that a bamboo collecting pillar having the pillar is formed by bonding, and the outer surface is finish-cut to form a pillar surface.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The 7055 bamboo material was made by making bamboo into fine chips and press-molding with adhesive, and instead of utilizing the inherent strength of bamboo against bending, the conventional particle board material was replaced with bamboo chips However, it is difficult to use for structural columns, beams, girders, etc. in terms of strength. In addition, the bamboo pillars of Japanese Utility Model Laid-Open No. 7-38347 also require a large amount of time for cutting bamboo and for forming and processing the bamboo into pillars.

[0004]

Means for Solving the Problems The present invention has been made to solve the above problems, and the invention according to claim 1 is a building material made of bamboo, divided into four parts. Press the desired number of Moso bamboo or bamboo to form a flat plate,
The plates are bonded to each other to form a multi-layered outer plate. On this outer plate, a desired number of the bamboo halves and the remaining thin bamboo quarts used for the flat plate and the branches thereof are pressed together. And forming a thick plate, cutting the plate to a desired size, and bonding it around the steel pipe. The invention according to claim 2 is characterized in that the building material is formed as a pillar, a through pillar, a beam, or the like. Further, the invention according to claim 3 is a method for manufacturing a building material using bamboo, wherein a plurality of Moso bamboo or bamboo bamboo fibers are formed in parallel and divided into four, and the surface of the bamboo is lowered. And pressing parallel to form a flat plate of a predetermined thickness, bonding the flat plates to each other to form a multilayer plate, and dividing the desired number of bamboo into half and the remaining bamboo used for the flat plate A step of forming a thick plate by pressing a thin portion of the thin portion into four pieces and branches thereof on the multilayer plate and pressing and bonding them so as to be integrated with the multilayer plate, and cutting the thick plate into a desired size to form a steel pipe. It is characterized by comprising a bonding step. As a result, the composite building material of the bamboo material and the steel pipe of the present invention is used for the entire bamboo,
Since the branches are used, there is no waste and the steel pipe is inserted into the core. Therefore, lightweight, inexpensive and highly durable columns, beams and girders can be manufactured. In addition, since long and thick bamboo is arranged on the surface, the bending strength is large, and through columns and long beams can be easily formed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Domestic Bamboo
Use Yatake. (Fig. 1) At the periphery of the pillar shown in (Fig. 2), the basal part of the bamboo bamboo or bamboo bamboo is placed so that the front of the bamboo faces the surface of the pillar to resist bending. Similarly, the bamboo table is arranged at the lower end and the upper end so as to come to the outside (the lower end and the upper end) of the beam. (Fig. 1) and (2) in (Fig. 2) were compression-bonded to the upper thin part of bamboo and its branches, which were used from the root used earlier, and the branches and arrow bamboos that were strong in bending. Use things. Beams have similar specifications. At the upper and lower ends of each pillar, a steel pipe as a tenon extends from the 5 cm pillar. The production dimensions are 12cm × 12cm × 3
30 cm. 12cm x 12cm x 660 two-story through pillar
cm. 3 story through pillar 12cm × 12cm × 900c
m. Beam 12cm × (20cm-50cm) × (300c
m ~ 600cm)

[0006]

[Example] Pipe columns, through columns, beams, and the like used for wooden house conventional framing method using Moso bamboo, Matake (Yutake) and Yatake from Japan.
Create girder and girth. The tube column is (1) and (2) of (Fig. 1) glued with area resin adhesive, width 125cm
× Make a thick board with a length of 330cm and a thickness of 3.5cm, cut it into a 12cm and a 5cm width with a continuous saw and attach it to a steel pipe (commercially available) with an adhesive as shown in Fig. 1 Crimping using a press machine. Length of through pillar 660c
m and 900 cm are the same process as the tube post, but in the part (1), the bamboo is cut into four pieces, 200 cm and 100 cm, and the seams are shifted and arranged in a (plover) as shown in FIG. 4. At the upper and lower ends of the columns, steel pipes are extended by 5 cm each for placing in the base and beams. The same process is used for beams (Fig. 2)
The thickness of (1) + (2) on the lower and upper portions of the above is 10 cm to 15 cm in proportion to the length of the span. (1) + on both sides
For (2), a 3.5 cm thick board made with the above-mentioned pillars is used.

[0007]

[Effect of the Invention] Since all bamboo materials and branches are used, there is no waste, and material costs are reduced. By putting a commercially available steel pipe inside
Lightweight with increased bending, compression, tension and strength. Since 9.0 m through columns and 4.0 m to 6.0 m durable beams for 3-story buildings, which had no conventional products, can be made, a 3-story 2-family house can be made safely and inexpensively. Contribute to the hollowing out of industry, forestry and local production activities and employment. Forests will be improved and the risk of floods will be eliminated.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a constituent material of a pillar.

FIG. 2 is a cross-sectional view showing a configuration of a beam, a girder, and a girth.

FIG. 3 is a three-dimensional view showing a handle portion of a pillar.

FIG. 4: Arrangement of seams of bamboo (1)
FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer board 2 Osamu Hosake and Yatake part 3 Steel pipe 4 Adhesive surface

Claims (3)

(57) [Claims] 1. A desired number of Moso bamboos or bamboos, which are divided into four, are pressed to form a flat plate, and the plates are adhered to each other to form a multilayer outer plate. Press the half of the bamboo and the remaining thin part of the bamboo used for the flat plate and the branches and press the branches together to form a thick plate, cut this plate to the desired size and bond it around the steel pipe A building material made of bamboo, characterized by the following: 2. The building material according to claim 1, wherein the building material is formed as a pillar, a through pillar, a beam, or the like. 3. A step of forming a plurality of Moso bamboo or bamboo fibers in parallel and forming them in quadrants, a step of arranging the bamboo surfaces in parallel and pressing them to form a flat plate of a predetermined thickness, and Adhering them to each other to form a multilayer board, and arranging the desired number of halved bamboo pieces and the remaining thin portion of bamboo used for the flat board in quarters and branches thereof on the multilayer board to form a multilayer board. Manufacturing a bamboo-based building material, comprising: a step of forming a thick plate by press bonding so as to be integrated with the plate; and a step of cutting the thick plate to a desired size and bonding the steel plate to a steel pipe. Method.