JP5451212B2 - Bamboo board - Google Patents

Description

  The present invention relates to a bamboo board, and more particularly to a lightweight and high-strength board that can be easily assembled with a simple structure.

  Furniture and the like are generally manufactured using wooden, plastic or metal plates. However, wooden boards are easily rotted due to moisture absorption, and were disposed of by incineration when they could not be used. However, wood was cut and dried after taking decades of growth, and processed into a predetermined shape and size. The use of a large amount of wooden board materials necessitates cutting a large amount of trees, leading to the destruction of the global environment.

  In addition, when a plastic plate material cannot withstand use and is disposed of, if it is to be incinerated, harmful substances are generated or not generated depending on the material, and if it is to be disposed of in landfill, the landfill location is limited.

  Further, when the metal plate material cannot be used due to flaws or corrosion and is discarded, it needs to be disposed by landfill, resulting in high cost.

  On the other hand, bamboo plate materials have been proposed in which vertically divided bamboo materials obtained by vertically dividing round bamboo are arranged in a plate shape (Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, In Patent Document 5), in order to ensure sufficient strength, it is necessary to stack in multiple layers, which makes it heavy.

  On the other hand, a lightweight bamboo board material has been proposed in which a vertically divided bamboo material is used as a structural member, which is vertically arranged, spaced apart from each other in parallel and sandwiched between upper and lower board materials (Patent Document 6). In this bamboo board material, since the vertically divided bamboo material receives the load in the thickness direction (direction perpendicular to the board surface), sufficient strength can be secured.

JP 2000-254903 A JP 2002-101990 A JP 2002-136352 A JP 2003-39407 A JP 2004-345299 A Utility Model Registration No. 3140654

  However, since the bamboo board described in Patent Document 6 uses a bamboo board in which a large number of bamboo pieces are joined to the upper and lower board materials and compression-molded, a plurality of vertically divided bamboo materials are arranged in parallel at intervals in the thickness direction. As a result, if the multiple vertically split bamboo materials and the upper and lower bamboo plate flat plates are not firmly fixed, among the loads from the side of the hollow structure plate, the vertically divided bamboo material is easy due to the load in the thickness direction of the vertically divided bamboo material. It is difficult to secure sufficient strength.

  On the other hand, in order to secure sufficient strength against the load from the four sides (both longitudinal and lateral directions) of the bamboo board material, it is necessary to assemble the vertically divided bamboo material into a complicated structure or use the round bamboo as a ring. There is a problem that the assembly work is very troublesome and difficult to put into practical use.

  In view of such problems, an object of the present invention is to provide a lightweight and high-strength bamboo board material that can be easily assembled with a simple structure.

  Therefore, the bamboo board material according to the present invention uses a plurality of vertically divided bamboo materials as structural members, arranged parallel to each other in the thickness direction, and held in a parallel posture by upper and lower flat plates. In the bamboo structure with a hollow structure, the vertically divided bamboo material of the structural member (11) is vertically divided into narrow plates to form a narrow flat plate shape, while the upper and lower flat plates (12) are vertically divided into equal widths. In addition, it is constituted by a flat plate material obtained by adhering or fixing substantially flat vertically divided bamboo materials in parallel and in a plate shape so that the side edges thereof are adjacent to each other. The member (11) is arranged so as to be orthogonal to the vertically divided bamboo material.

  Bamboo grows at a growth rate of 3 to 4 years and is faster than trees that require several decades before they can be used. For example, bamboo is cut down in large quantities by thinning out two trees at a time. But it has little impact on the environment.

  One of the features of the present invention resides in that a narrow flat plate vertically divided into equal widths is used as a structural member of a plate material. As a result, a large amount of bamboo board can be produced without adversely affecting the global environment, and no harmful substances are generated even when incinerated.

  Another feature of the present invention is that a plurality of substantially flat vertically divided bamboo materials are arranged in parallel and in a plate shape to form a flat plate material, a flat plate is formed by one flat plate material or a plurality of stacked flat plate materials, and Is arranged such that the vertically divided bamboo material is perpendicular to the vertically divided bamboo material of the structural member, and is fixed to the structural member.

  As a result, when a load is applied in the thickness direction (lateral direction) of the vertically divided bamboo material of the structural member, the upper and lower flat plates receive this and the longitudinal direction (vertical direction) of the vertically divided bamboo material of the structural member. When the load is applied to the direction, the structural member itself receives this, so that sufficient strength can be obtained against the load from the four sides of the bamboo board, and the load in the thickness direction (vertical direction) of the bamboo board In contrast, since the vertically split bamboo is subjected to a load, sufficient strength can be obtained.

  When arranging the structural members, it may be necessary to position them, but using a positioning jig is complicated. Therefore, if the lower or upper end of the vertically divided bamboo material of the structural member is sandwiched between the vertically divided bamboo materials constituting the lower or upper flat plate material, positioning can be performed without using a jig.

  Moreover, the bamboo board | plate material which concerns on this invention uses several vertically divided bamboo materials as a structural member, and arranges it in parallel at intervals in the thickness direction, and is hold | maintained in the parallel attitude | position by the upper and lower flat plates. In the hollow structure bamboo plate material, the vertically divided bamboo material of the structural member is vertically divided into a narrow flat plate shape, while the flat plate is a plate shape of wood waste, wood powder or bamboo powder by a synthetic resin material The structural member is held in a parallel posture by being sandwiched from above and below by the flat plate.

  The feature of the present invention resides in that wood chips, wood powder or bamboo powder is hardened into a plate shape with a synthetic resin material to constitute upper and lower flat plates. When wood chips, wood powder or bamboo powder is hardened with a synthetic resin material, it can be manufactured so that it has sufficient strength against the load and there is no anisotropy in mechanical strength. Sufficient strength can be obtained with respect to the load.

  In addition, a plurality of narrow-width plate materials obtained by solidifying wood chips, wood powder or bamboo powder with a synthetic resin material are arranged in parallel and in a plate shape so that their side edges are adjacent to each other, and are bonded or fixed to form a flat plate material. The innermost layer of the flat plate can be made of a flat plate material.

  In this case, it can position without using a jig | tool by pinching | interposing the lower end part or upper end part of the vertically divided bamboo material of a structural member with the narrow-width board | plate material which comprises the lower or upper flat plate raw material.

  The bamboo plate material according to the present invention is a hollow structure in which a plurality of vertically divided bamboo materials are used as a structural member, arranged in parallel in the thickness direction at intervals, and held in a parallel posture by upper and lower flat plates. In the structural bamboo plate material, the vertically divided bamboo material of the structural member is vertically divided into a narrow flat plate while the flat plate is made of resin corrugated board, and the corrugated shape of the resin corrugated board is the structural member. It is arranged so as to be orthogonal to the vertically divided bamboo.

  The feature of the present invention is that resin corrugated cardboard is used for upper and lower flat plates, and the corrugated shape is orthogonal to the structural member. Thereby, when a load is applied in the thickness direction (lateral direction) of the vertically divided bamboo material of the structural member among the sides of the bamboo plate material, the upper and lower resin corrugated boards receive this, and the longitudinal direction of the vertically divided bamboo material of the structural member ( When a load is applied in the (vertical direction), the structural member itself receives this, so that sufficient strength can be obtained against the load from the four sides of the hollow structural plate.

  The structural member and the upper and lower flat plates may be bonded by an adhesive, or may be fixed by screws or nails, or may be fixed by using both the bonding and screws or nails in combination. .

  Furthermore, you may make it fix a structural member and a flat plate by inserting the edge part of a structural member in the ditch | groove formed in the flat plate. In this case, you may make it use an adhesive agent, a screw, or a nail together.

  Furthermore, the structural member between the upper and lower flat plates may be visible from the outside, but may be covered with a cover member. For the cover member, a board material in which vertically divided bamboo materials are arranged in parallel and in a plate shape so that the side edges are adjacent to each other and bonded or fixed, or a plate material obtained by hardening wood chips, wood powder, or bamboo powder into a plate shape with a synthetic resin material as appropriate You may make it cut and use for the width | variety.

  The bamboo plate material described above has a hollow inside, which can reduce the weight. However, in the case of a hollow structure, even if the nail is driven into the hollow portion, the nail cannot be held and easily comes off. Therefore, if the space formed by the upper and lower flat plates and the structural member is filled with a compression member made of wood powder or bamboo powder, the nail that has been driven in can be held.

  According to the present invention, in a bamboo board material in which a plurality of vertically divided bamboo materials are used as a structural member, arranged in parallel at intervals in the thickness direction, and held in a parallel posture by upper and lower flat plates The vertically divided bamboo of the structural member is vertically divided into a narrow flat plate shape, while the space formed by the upper and lower flat plates and the structural member is a wood chip whose shape is maintained by a synthetic resin material. The bamboo board | plate material characterized by being filled with the compression member of wood powder or bamboo powder can be provided.

  As a result, it is possible to provide a bamboo plate material that can be driven and held by a nail, thereby improving the usefulness of the bamboo plate material. For example, it can be used for a formwork panel or a floor panel instead of a conventional plywood.

  In this case, in order to ensure the strength, the flat plate material is formed by bonding or fixing substantially flat vertically divided bamboo materials vertically divided at equal widths in parallel and in a plate shape so that the side edges are adjacent to each other. It is preferable to arrange the flat plate so that the vertically divided bamboo material is orthogonal to the vertically divided bamboo material of the structural member.

  The flat plate can also be constituted by solidifying wood chips, wood powder or bamboo powder into a plate shape with a synthetic resin material.

  Furthermore, it is the same as a conventional plywood, even if a compression member made of wood powder or bamboo powder is arranged between the structural members made of vertically split bamboo material without adhering upper and lower flat plates, and this is bonded or fixed to the structural member. Bamboo board material can be obtained.

  According to the present invention, a vertically divided bamboo material that is vertically divided into equal widths to form a narrow flat plate is used as a structural member, and a plurality of structural members are parallel to each other at a predetermined interval in the thickness direction of the vertically divided bamboo material. On the other hand, wood chips, wood powder, or bamboo powder compression members that are held in shape by a synthetic resin material are arranged between adjacent structural members, and are adhered or fixed to each other. The wooden board | plate material characterized by can be provided.

  This bamboo board material is vertically split bamboo, arranged at intervals and filled with wood chips, wood powder or bamboo powder mixed with synthetic resin material, and pressed from above and below to compress wood chips, wood powder or bamboo powder. You may manufacture so that it may adhere | attach or adhere to a vertically divided bamboo material while producing a member.

  In addition, a synthetic resin material is mixed with wood chips, wood powder, or bamboo powder and compressed to produce a compression member having a thickness equal to the width of the vertically divided bamboo material. You may make it adhere with a material.

  The above-described solid wooden board material can be manufactured by sandwiching the upper and lower sides of the bamboo board material produced in this way with a flat plate and fixing, bonding or fixing with a nail or the like.

  Moreover, in the above-mentioned bamboo board | plate material, if a bamboo-hug is embed | buried in a compression member, folding resistance can be improved. In other words, a plurality of bamboo strings can be embedded in the compression member so as to extend in the longitudinal direction and / or the width direction.

  Furthermore, if a large number of bamboo stalks are embedded in the longitudinal direction or the width direction, the folding resistance can be ensured without using a vertically divided bamboo material as a structural member.

  That is, according to the present invention, a substantially flat vertically divided bamboo material vertically divided in equal widths is arranged in a plate shape in parallel and in a plate shape so that the side edges thereof are adjacent to each other. A flat plate is formed, and a compression member made of wood chips, wood powder or bamboo powder, which is held by a synthetic resin material, is sandwiched between the upper and lower flat plates, and a plurality of bamboo strings are placed in the compression member in the longitudinal direction or the width direction. The bamboo board | plate material characterized by having been embed | buried in can be provided.

  Further, according to the present invention, wood chips, wood powder or bamboo powder and a synthetic resin material are kneaded and compressed into a flat plate shape, and a plurality of bamboo straws extend in the longitudinal direction or the width direction in the compression member. A bamboo plywood characterized by being embedded can be provided.

  Bamboo bamboo can be obtained by splitting bamboo vertically or crushing it in the radial direction.

It is a perspective view which shows preferable embodiment of the bamboo hollow structure board which concerns on this invention. It is a disassembled perspective view which shows the said embodiment. It is a perspective view which shows the state which decomposed | disassembled the flat plate in the said embodiment. It is a perspective view which shows 2nd Embodiment. It is a perspective view which shows 3rd Embodiment. It is a perspective view which shows 4th Embodiment. It is a perspective view which shows 5th Embodiment. It is a disassembled perspective view which shows the said embodiment. It is a perspective view which shows 6th Embodiment. It is a perspective view which shows 7th Embodiment. It is a perspective view which shows 8th Embodiment. It is a perspective view which shows 9th Embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 3 show a preferred embodiment of a bamboo board according to the present invention. The bamboo plate 10 of this example is configured such that a plurality of structural members 11 are sandwiched from above and below by flat plates 12 and the side surfaces are covered by a cover plate 13.

  The structural member 11 is a vertically divided bamboo material in the form of a narrow plate in which true bamboo is vertically divided into equal widths, and a plurality of structural members 11 are arranged in parallel in the thickness direction of the vertically divided bamboo material. They are sandwiched between the upper and lower flat plates 12 and fixed by driving a nail, for example, a bamboo nail 14, so that the postures of the adjacent parallel structural members 11 and the distance between them are maintained and the collapse is prevented. Note that an adhesive may be applied to the end surface of the structural member 11 to adhere to the flat plate 12 as necessary.

  The flat plate 12 is formed by laminating flat plate materials 12A and 12B and bonding them to each other. The flat plate materials 12A and 12B are made of substantially flat vertically divided bamboo material obtained by dividing true bamboo into eight (or four) equal widths. This vertically divided bamboo is arranged in parallel and in a plate shape so that the side edges are adjacent to each other, and the side edges are bonded to each other with an adhesive, and the two flat plate materials 12A and 12B are vertically divided. Bamboo materials are laminated so as to be orthogonal to each other and bonded by an adhesive, and the vertically divided bamboo materials of the upper and lower flat plates 12 are parallel to the structural member 11 and orthogonal to each other.

  The cover member 13 is made by vertically aligning narrow bamboo plates made of true bamboo vertically into equal widths in parallel and in a plate shape so that the side edges are adjacent to each other, and bonding the side edges with an adhesive. The bamboo plate is cut into an appropriate width, and this is fixed to the upper and lower flat plates 12 with bamboo nails or an adhesive. In addition, it replaces with a bamboo board and can cut | disconnect and use the board | plate material which hardened the wood chip, the wood powder, or the bamboo powder in the plate shape with the synthetic resin material.

  In this example, the vertically divided bamboo is used as the material for the bamboo board 10. However, because bamboo grows at a growth rate of 3 to 4 years, there is little impact on the environment even if a large number of trees are cut at a time. In addition, no harmful substances are generated even when incinerated.

  In addition, a narrow plate-like vertically divided bamboo material is used for the structural member 11 and is used in parallel and spaced apart from each other, and the structural member 11 is sandwiched between upper and lower flat plates 12, and the bamboo nail 14 or adhesive is used. Since it is fixed by the agent, when a load from four sides (vertical and horizontal) of the hollow bamboo plate 10 is applied, the structural member 11 and the flat plate 12 can receive a side load, and high strength. A bamboo board 10 is obtained.

  In this example, two bamboo plates 12A and 12B are laminated and bonded to produce a flat plate 12. However, a bamboo plate 12B is obtained by stacking and bonding a sheet of cloth or paper on the back of one bamboo plate 12B. Can be used as the flat plate 12.

  FIG. 4 shows a second embodiment, in which the same reference numerals as those in FIGS. 1 to 3 denote the same or corresponding parts. In this example, “′” is attached to the reference numeral to distinguish it from the first embodiment. In this example, the upper and lower flat plates 12 'are manufactured by solidifying wood chips, wood powder or bamboo powder into a plate shape with a synthetic resin material, and concave grooves 12C are formed on the opposing surfaces of the upper and lower flat plates 12' to extend in the longitudinal direction. Then, the end portion of the vertical structural member 11 is fitted into the concave groove 12C and bonded by an adhesive. In addition, you may make it drive in a nail as needed.

  In this example, wood chips, wood powder, or bamboo powder is hardened into a plate shape with a synthetic resin material to form the upper and lower flat plates 12 '. Therefore, the flat plate 12' has sufficient strength against the load and is mechanical. Since there is no anisotropy in strength, sufficient strength can be obtained with respect to the load from the four sides of the bamboo plate 10 ′.

  In this example, the concave member 12C is formed in the flat plate 12 'to fit the structural member 11, but the end surface of the structural member 11 is brought into contact with the flat flat surface 12' and bonded with an adhesive. Alternatively, a nail may be driven and a screw may be screwed in and fixed.

  In addition, wood chips, wood powder or bamboo powder is hardened into a narrow plate shape with a synthetic resin material, and this narrow plate material is arranged in parallel and in a plate shape so that the side edges are adjacent to each other, and the side edges are mutually adhesive. It is also possible to form a flat plate material by bonding the two flat plate materials, and laminate the two flat plate materials and bond them with an adhesive.

  FIG. 5 shows a third embodiment, in which the same reference numerals as those in FIGS. 1 to 3 denote the same or corresponding parts. However, in this example, a symbol “is attached to distinguish between the first embodiment and the second embodiment. In the bamboo board 10” of this example, resin corrugated board is used for the upper and lower flat plates 12 ”. The flat plate 12 ″ is arranged so that the corrugated shape of the resin corrugated board is orthogonal to the structural member 11, and is adhered or fixed to the structural member 11.

  Also in this example, sufficient strength can be obtained with respect to the load from the four sides of the bamboo plate 10 ″.

  FIG. 6 shows a fourth embodiment, in which the same reference numerals as those in FIGS. 1 to 4 denote the same or corresponding parts. However, in this example, "" is added to the reference numeral to distinguish it from the first embodiment, the second embodiment, and the third embodiment. In this example, the plate material 12A having two flat plates, 12B is laminated and bonded to each other, and the lower end portions of the plurality of structural members 11 are sandwiched by narrow plate-like vertically split bamboo members constituting the lower flat plate material 12B "'and adhered by an adhesive. 11 is positioned. Thus, by sandwiching the lower end portion (or may be the upper end portion) of the structural member 11 with the vertically divided bamboo material constituting the flat plate 12, positioning can be performed without using a positioning jig.

  In the fourth embodiment, the case where the upper and lower flat plates 12 are formed of narrow bamboo-like vertically divided bamboo materials has been described. However, the upper and lower flat plates 12 ′ are made of wood resin, wood powder or bamboo powder with a synthetic resin material. The flat plate material is formed by laminating this flat plate material by laminating this flat plate material by laminating this narrow plate material so that the side edges are parallel to each other and arranging them in a plate shape and bonding or fixing the side edges. The same applies to the case. In other words, wood chips, wood powder, or bamboo powder can be solidified with a synthetic resin material into a narrow plate shape and positioned by sandwiching one end of the structural member 11 between the narrow plate members.

  7 and 8 show a fifth embodiment. In the figure, the same reference numerals as those in FIGS. 1 to 3 denote the same or corresponding parts. In this example, the space formed by the upper and lower flat plates 12 and the structural member 11 is filled with a compression member 20 of wood chip, wood powder or bamboo powder whose shape is held by a synthetic resin material, and thereby holding the nail driven in The ability is given.

  When producing the bamboo plate material of this example, as shown in FIG. 9, the structural members 11 are arranged on the lower flat plate 12 at intervals in the thickness direction and fixed with bamboo nails or bonded with an adhesive, The wood chip, wood powder or bamboo powder kneaded with the constituent resin material is pushed in from above, pressed and compressed with a flat mold, solidified to produce the compression member 20, and then the upper plate 12 is stacked and bonded or fixed Can be manufactured.

  Moreover, it can also manufacture similarly by arrange | positioning the compression board 20 between the structural members 11 mentioned later, and manufacturing the board | plate material made from bamboo which mutually adhere | attached or fixed and covered the flat plate 12 from the upper and lower sides. .

  FIG. 9 shows the embodiment of FIG. In the figure, the same reference numerals as those in FIG. 4 denote the same or corresponding parts. In this example, the space formed by the flat plate 12 ′ and the structural member 11 is filled with the compression member 20. The flat plate 12 'is formed by laminating upper and lower flat plate materials 12A' and 12B ', and the structural member 11 is positioned by sandwiching the upper end portion and the lower end portion of the structural member 11 with the inner flat plate material 12B'.

  FIG. 10 shows a seventh embodiment. In this example, the bamboo plate 10 "" is composed of the structural member 11 and the compression member 20, and the compression member 20 is composed by kneading a synthetic resin material into wood chips, wood powder or bamboo powder and compression-molding the structural member. 11 and the compression member 20 are bonded or fixed to each other.

  When producing the bamboo board 10 ″ ″ of this example, the structural member 11 is embedded in wood chips, wood powder or bamboo powder kneaded with a synthetic resin material so as to be spaced apart in parallel in the thickness direction and parallel to each other, This can be pressed into a plate shape with a mold to solidify the resin and produce a bamboo plate material.

  Further, a synthetic resin material is kneaded with wood chips, wood powder, or bamboo powder, and this is compressed into a plate having a width equal to the width of the structural member 11 and a width equal to the interval between the structural members 11 to form the compression member 20. It is also possible to produce a bamboo plate material by manufacturing and bonding or fixing the structural member 11 to the side surface of the compression member 20.

  FIG. 11 shows an eighth embodiment. In this example, the bamboo plate 10 "" is composed of the structural member 11 and the compression member 20, and the compression member 20 is composed by kneading a synthetic resin material into wood chips, wood powder or bamboo powder and compression-molding the structural member. 11 and the compression member 20 are bonded or fixed to each other.

  A large number of bamboo straws 21 are embedded in the compression member 20 so as to extend in the longitudinal direction, and the bamboo straws 21 are manufactured by tearing the bamboo vertically in the shape of a straw or crushing it in the radial direction.

  When producing the bamboo board 10 ″ ″ of this example, the structural member 11 is embedded in wood chips, wood powder or bamboo powder kneaded with a synthetic resin material so as to be spaced apart in parallel in the thickness direction and parallel to each other, Further, a bamboo plate material can be manufactured by pressing a large number of bamboo turrets 21 in a wood chip, wood powder, or bamboo powder so as to extend in the longitudinal direction and pressurizing them into a plate shape with a mold to solidify the resin.

  Further, a synthetic resin material is kneaded with wood chips, wood powder, or bamboo powder, and a large number of bamboo straws 21 are arranged and pushed so as to extend in the longitudinal direction, and the thickness is equal to the width of the structural member 11. It is also possible to manufacture the compression plate 20 by pressure forming into a plate having a width equal to the interval, and to bond or fix the structural member 11 to the side surface of the compression member 20 to manufacture a bamboo plate.

  FIG. 12 shows a bamboo plywood 10 ″ ″ ′ according to a ninth embodiment. In the figure, a bamboo plywood 10 "" 'is constructed by embedding a large number of bamboo straws 21 in a flat plate-like compression member 20 so as to extend in the longitudinal direction. Or those crushed in the radial direction are used.

  In the case of producing the bamboo board 10 ″ ″ ′ of this example, a synthetic resin material is kneaded with wood chips, wood flour or bamboo flour, and a large number of bamboo straws 21 are arranged so as to extend in the longitudinal direction. Can be produced by pressure forming into a flat plate shape.

  In the case of this example, since there is no structural member extending in the longitudinal direction, the bamboo basket 21 can be embedded to extend in the width direction in addition to the longitudinal direction.

10, 10 ', 10 ", 10"', 10 "" Bamboo board 10 """Bamboo plywood 11 Structural member 12, 12 ', 12" Flat plate 12A, 12B Flat plate material 13 Cover member 14 Bamboo nail 20 Compression member 21 bamboo

Claims (2)

A plurality of vertically divided bamboo materials are used for a flat plate that holds the structure portion and the structure portion sandwiched therebetween, and the plurality of vertically divided bamboo materials forming the structure portion are orthogonal to the longitudinal direction and the width direction of the vertically divided bamboo material. spaced mutually spacing in the thickness direction of the silo bamboo, most broad surface portions of the plurality of silos bamboo is arranged so as to be parallel Rutotomoni, silos width direction and the flat silos bamboo of the structural unit In the bamboo plate material of the hollow structure in which the structure portion is held in a parallel posture by the flat plate so that the width direction of the bamboo material is orthogonal ,
While the vertically divided bamboo material of the above structure is vertically divided into equal narrow widths to form a narrow flat plate shape,
Upper Kitaira plate (12) is a plurality of flat plate material adhered or affixed side by side substantially flat silos bamboo which is divided vertically into equal width parallel to and plate-like as its side edges are adjacent to each other It is composed of layers,
Longitudinal silo bamboo of the flat plate (12) and the flat plate (12) and the structural unit to parallel to the longitudinal direction of the silo bamboo of the structural unit is arranged, the structure section by the flat plate (12) It is held in a parallel posture by being sandwiched from above and below the structure part when the thickness direction of the vertically divided bamboo material of the structure part is horizontal ,
The structure portion is positioned by sandwiching one of both end portions extending in the longitudinal direction of the vertically divided bamboo material between the vertically divided bamboo materials constituting the flat plate material of the lower or upper flat plate (12). Characteristic bamboo board. A plurality of vertically divided bamboo is used in structures, a plurality of vertical divisions bamboo material forming the structure is, the longitudinal direction and vertically divided from each other intervals in the thickness direction of the bamboo perpendicular to the width direction of the silo bamboo at a plurality of vertical divisions bamboo material arranged to each other most broad surface portion is parallel Rutotomoni in bamboo plate having a hollow structure in which the structure is held in a posture parallel with the flat plate,
While the vertically divided bamboo material of the above structure is vertically divided into equal narrow widths to form a narrow flat plate shape,
The flat plate (12 ') is formed by laminating a plurality of flat plate materials,
The structure part is held in a parallel posture by being sandwiched from above and below the structure part when the thickness direction of the vertically split bamboo material of the structure part is made horizontal by the flat plate (12 ′), and the flat plate (12 ′) The innermost flat plate material is made by adhering or adhering a plurality of narrow plates made of wood chips, wood flour or bamboo powder with a synthetic resin material in parallel and in a plate shape so that their side edges are adjacent to each other. The flat plate (12 ′) and the structure portion are arranged so that the longitudinal direction of the narrow width material constituting the innermost flat plate material of the flat plate (12 ′) is parallel to the longitudinal direction of the vertically divided bamboo material of the structural portion. Arranged,
Bamboo the structural unit, characterized in that it is positioned by being sandwiched between the narrow plate member which constitutes the innermost layer of the plate material of the lower or upper flat plate both side edge portions extending in the longitudinal direction of the silo bamboo Board material.

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