JPH0621902U - Laminated plywood material made of bamboo crimping board and foreign board - Google Patents

Abstract

(57) [Summary] [Purpose] A laminated plywood material composed of bamboo boards and foreign boards, suitable for flooring and upholstery. It has high hardness, tensile strength and bending strength, and uses raw bamboo materials. To provide a laminated plywood material which has a high yield and can be manufactured at low cost. [Structure] A strip-shaped thin plate made of bamboo material is soaked in a paste and dried, and a large number of the strip-shaped thin plates are gathered into a flat plate of an appropriate size, which is different from the bamboo crimping plate material 3 formed by pressing and molding. Plate material 4
Is a laminated plywood material 1 of a bamboo pressure plate and a heterogeneous plate, which are bonded and laminated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a laminated plywood material that can be used for various purposes such as building materials. Specifically, it is made by cutting raw bamboo material into strip-shaped thin plates, pressing them together into a flat plate, and molding them. The present invention relates to a laminated plywood material composed of a crimped board material made of bamboo obtained from the above and a different material.

[0002]

[Prior art]

 Conventionally, various laminated plywood materials such as veneer boards have been used, but a laminated plywood material using bamboo, which has excellent properties, is also disclosed. Bamboo is made up of a highly rigid vascular bundle consisting of micropore conduits and phloems and a vascular sheath that protects it. It is extremely rigid, has high repulsive force, and is tough and has low expansion and contraction. It has excellent splitting property. Moreover, the moderate flexibility of bamboo enhances earthquake resistance, and the repulsive force of bamboo is ideal for flooring materials in places with severe impact.

As a laminated plywood material utilizing the excellent properties of bamboo, Japanese Utility Model Laid-Open No. 2-115404 discloses that “surfaces of a plurality of rectangular pieces cut from bamboo are firmly bonded to each other. , And a pressed plywood material in which a foreign board is adhesively pressed on the entire back surface of the bamboo laminated plywood. That is, this plywood material is a laminated plywood material obtained by adhering a foreign plate to a bamboo laminated plywood.

[0004]

[Problems to be solved by the device]

 The veneer boards that have been used in the past are apt to come off due to the absorption of water, so they cannot be sufficiently washed with water, which is unsanitary. In addition, due to its low strength, some parts cannot be used in parts such as floorboards that are subject to a load, and their application range is narrow.

Bamboo plate materials such as “compressed plywood material obtained by bonding and compressing a foreign board to the entire back surface of bamboo laminated plywood” disclosed in Japanese Utility Model Laid-Open No. 2-115404 are used as floor materials, for example. If used, the hardness and strength are not sufficient, so that it has a defect that the heel of shoes such as high heels is damaged. In addition, since it is based on plywood that is made by adhering and joining multiple plate pieces that are cut from a bamboo raw material into a square shape, the tensile strength and bending strength are not sufficient, and the yield of the raw bamboo material used is low. Therefore, the cost will increase. Therefore, the plywood material is not always versatile.

Furthermore, since the bamboo material has a round shape, it is difficult to use for a building material that needs to have a flat plate shape. Therefore, bamboo materials are used in a narrow range such as fishing rods, bamboo baskets, fans, and other favorite items such as crafts. However, the growth of bamboo is significantly faster than that of wood, and the stability of the supply of raw materials can be obtained, so expansion of its application is desired. That is, it is desired that the plywood material containing bamboo as a main material can be used as a building material such as a floor material, a wall material, a ceiling material, a soundproofing material, and a heat insulating material.

The present invention has been made in view of the problems of the bamboo plywood materials conventionally proposed as described above, the present state of use of the bamboo materials, and the supply stability of the bamboo material, and the purpose thereof is to: It is a board material suitable for flooring and direct lining, and has a high hardness, tensile strength, and bending strength, and the raw material bamboo material can be used at a high yield and can be manufactured at low cost. The purpose is to provide plywood materials and expand the applications of bamboo raw materials.

[0008]

[Means and Actions for Solving the Problems]

 The present inventor has made various studies on the solution to the above-mentioned problems. Then, they found that the utilization yield of raw materials could be increased, and that the strength and hardness could be increased, and further focused on the laminated plywood material that uses this crimping plate material as the main material.

That is, the present invention is based on the above findings and ideas, and the gist thereof is that a strip-shaped thin plate made of bamboo as a raw material is glued and dried, and a large number of the strip-shaped thin plates are appropriately sized. It is a laminated plywood material of a bamboo crimping plate and a heterogeneous plate, which is characterized in that the crimping plate made of bamboo, which is pressed and molded into a flat plate shape, and a heterogeneous plate are adhesively laminated.

The raw bamboo material used in the present invention is not particularly limited, but Menso bamboo, true bamboo, light bamboo and the like can be used. The bamboo crimping plate material used in the present invention is manufactured as follows. First, a strip-shaped thin plate having a width of 10 to 30 mm and a thickness of 0.2 to 4 mm and an appropriate length is scraped from the raw bamboo material, and the strip-shaped thin plate is dipped in a paste agent to sufficiently attach the paste agent to the surface. . The glued strips are dried in the shade for 24 hours. The glue used at this time is preferably glue, water-based vinyl urethane-based or epoxy-based adhesive, and the like. The band-shaped thin plate, which has been soaked in the glue and dried, is aligned in a frame body of an appropriate size with an appropriate thickness, and then bundled with a string to form a flat plate. Further, a plurality of strip-shaped thin plates gathered in the form of flat plates are stacked alternately with the iron plate material, and these are pressed and molded by a hot press to manufacture a bamboo crimping plate material.

As described above, the bamboo crimping plate material obtained by crimping the strip-shaped thin plate made of the bamboo material is manufactured by pressing and molding the strip-shaped thin plate coated with the adhesive agent. It is also dense, has excellent weather resistance and abrasion resistance, and is easy to wash with water. Furthermore, due to the action of the components contained in the bamboo material, it becomes a plate material that is resistant to corrosion and has a deodorizing effect. Further, since the strip-shaped thin plate used in the present invention is obtained by shaving the raw bamboo material, it is possible to increase the utilization rate of the raw material and reduce the cost.

Next, in the present invention, the bamboo pressure-bonded plate material obtained above and a foreign plate material are laminated to form a laminated plywood material. Examples include various synthetic resin plates such as vinyl plates, moistureproof plates such as rubber plates and metal plates, and heat insulating plates such as plaster boards, particle boards, wood boards and plywood boards. When laminated with the above-mentioned bamboo pressure-bonded plate, adhesive bonding is performed using an epoxy-based or water-based vinyl urethane-based adhesive or the like. Further, the thickness of the layer to be laminated is not particularly limited, but in view of the toughness of the bamboo crimping plate in the present invention, it is possible to obtain a strong laminating composite even by laminating one bamboo crimping plate and one dissimilar plate. A plate material is obtained.

[0013]

【Example】

 The present invention will be described below based on examples. FIG. 1 (1) is a perspective view showing a laminated plywood material composed of a bamboo crimping board material and a foreign material according to the present invention. This laminated plywood material 1 is a bamboo pressure plate 3 manufactured by gluing and drying a band-shaped thin plate 2 made of bamboo as a raw material, and then collecting and drying the band-shaped thin plate 2 into a flat plate of an appropriate size. It is a plywood material in which foreign wood boards 4 are adhesively laminated using a water-based vinyl urethane adhesive. Then, FIG. 1 (2) is an enlarged view of the portion A in FIG. 1 (1), and the strip-shaped thin plates 2 constituting the crimp plate material 3 made of bamboo are configured in a mesh shape of vertical arrangement and horizontal arrangement.

Next, FIG. 2 (1) shows a step of shaving the strip-shaped thin plate 2 from the raw bamboo material 5, and FIG. 2 (2) shows an enlarged view of the strip-shaped thin plate 2 scraped off. is there. The thin strip 2 has a thickness of about 0.2 to 4 mm, a width of about 10 to 30 mm, and an appropriate length. Further, FIG. 2 (3) shows the strip-shaped thin plate 2 that has been scraped off.

FIG. 3 is a perspective view showing a state in which the strip-shaped thin plates 2 are bundled and held by the support 6, suspended by the suspenders 7, immersed in the sizing agent tank 8, and then pulled up. In this way, the sizing agent is sufficiently adhered to the surface of the strip-shaped thin plate 2 and then dried in the shade for about 24 hours. Next, as shown in FIG. 4 (1), a large number of strip-shaped thin plates 2 after being dipped in the sizing agent and dried as described above are put together in a frame body 9 and have an appropriate size (area and thickness). 4) and bundle them with a string 10 to form a flat plate-like 11 made up of strip-shaped thin plates 2 as shown in FIG. 4 (2).

Further, FIG. 5 shows a state in which a plurality of the flat strip-shaped thin plates 11 and the iron plate material 12 which are made into the flat plate are stacked alternately and pressed by a hot press to form them. A bamboo pressure-bonded plate material can be obtained by such pressurization and molding, but if necessary, finish processing is performed to cut the top, bottom, left and right thereof. 6 (1) shows the finished bamboo crimping plate material 3, and its cross section A is enlarged to show (2), (3) and (4) in FIG. . The strip-shaped thin plates 2 constituting each of the bamboo crimping plate materials 3 have a vertical arrangement (2), a horizontal arrangement (3), and a vertical / horizontal net shape (4). The thickness of the above-mentioned finished bamboo pressure-bonded plate material is preferably about 5 to 25 mm for use.

[0017]

[Effect of device]

 The present invention is different from a bamboo crimping plate material in which a strip-shaped thin plate made from a bamboo material is soaked in a paste and dried, and a plurality of strip-shaped thin plates are collected into a flat plate of an appropriate size and pressed and molded. Since it is a laminated plywood material that is made by adhesively laminating the plate materials of (1), the utilization yield of the raw material bamboo material is high, and it can be manufactured at low cost, and the application of bamboo material can be expanded. (2) It has high hardness, tensile strength, and bending strength, and is suitable for flooring and upholstery. It does not get scratched by the heels of shoes such as high heels. (3) The crimp plate made of bamboo used in the present invention is manufactured by pressing and molding a strip-shaped thin plate coated with a glue, so the material is also tight and has excellent weather resistance and wear resistance. Due to the action of the ingredients contained in bamboo, it becomes a plate material that does not easily corrode and has a deodorizing effect. (4) Washing with water becomes easy if a laminated plywood material using various synthetic resin plates, rubber plates, metal plates, or other moisture-proof plates as the different plate materials. (5) If a heat insulating plate such as plaster board, particle board, wood board, or plywood board is used as a laminated board material to form a laminated plywood material, it can be used as a heat insulating material or soundproofing material.

[Brief description of drawings]

FIG. 1 (1) is a perspective view of a laminated plywood material composed of a bamboo crimping board material and a heterogeneous board material according to the present invention, and FIG. 1 (2) is an enlarged view of part A of FIG. 1 (1). It is a figure.

FIG. 2 (1) is a perspective view showing a step of shaving a strip-shaped thin plate from a raw bamboo material, and FIG. 2 (2) is an enlarged perspective view of the strip-shaped thin plate.
FIG. 2C is a perspective view of the strip-shaped thin plate that has been scraped off.

FIG. 3 is a perspective view showing a state in which band-shaped thin plates are bundled and held on a support, immersed in a sizing agent tank, and then pulled up.

FIG. 4 (1) is a perspective view showing a state in which a large number of strip-shaped thin plates after being pickled and dried are put together into a flat plate shape, and FIG. 4 (2) is a large number of strip-shaped thin plates. It is a perspective view which shows the state bundled together with the flat plate shape and the string.

FIG. 5 is a perspective view showing a state in which a band-shaped thin plate is made into a flat plate and is pressed to be molded.

FIG. 6 (1) is a perspective view showing a bamboo crimping plate material used in the present invention, and FIG.
(2), (3), and (4), the strip-shaped thin plates that make up each bamboo crimping plate material show vertical alignment (2), horizontal alignment (3), and vertical / horizontal mesh (4). It is a thing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminated plywood material 2 Strip thin plate 3 Bamboo crimping plate material 4 Wood board 5 Raw material bamboo material 6 Support 7 Lifting equipment 8 Glue tank 9 Frame body 10 String 11 Flat strip thin plate 12 Iron plate material

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Claims (2)

[Scope of utility model registration request] 1. A bamboo crimping plate material obtained by gluing a band-shaped thin plate made from a bamboo material as a raw material, drying the same, and collecting a large number of the band-shaped thin plates into a flat plate of an appropriate size, and pressurizing and molding. A laminated plywood material of a bamboo crimping board and a heterogeneous board, which is characterized by being adhesively laminated with another board material. 2. Different kinds of plate materials are various synthetic resin plates, rubber plates, metal plates, plaster boards, particle boards,
The laminated plywood material of the bamboo pressure-bonded plate and the heterogeneous plate according to claim 1, which is one kind or two or more kinds selected from a wood board and a veneer board.