JP2016215418A - Woody board and production method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a woody board capable of improving appearance quality on a side end of a woody board and a production method thereof.SOLUTION: A woody board comprises: a core material layer 3 formed by adhering and collecting plant materials; and a slice plate 4F laminated on one surface 3F of the core material layer. One side edge of the woody board 1 comprises a notch which is cut from one surface side to a predetermined depth, a cross section of the notch is an almost quadrilateral shape, and the notch part comprises a terminal processing member 9 whose cross section is an almost L-shape, in a shape along the shape of the notch. The woody board 1 is produced by the steps of: arranging a prismatic first wood on an end part of the slice plate 4F; mounting the plant materials containing a binder on the slice plate 4F and first wood; forming the plate-state core material layer 3 formed by compressing, and adhering and collecting the plant materials, and making the core material layer a plate-shape; and cutting the first wood so that a cross section becomes an almost L-shape on the end part of the plate-state body, and forming a step part on the end part of the plate-state body, for performing end part processing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wooden board and a method for manufacturing the same. More specifically, the present invention relates to a wood board including a core layer formed by collectively bonding plant materials with a binder, and a slice board of wood laminated on one surface thereof, and a method for manufacturing the same.

  Conventionally, a wood board having a core layer formed by assembling and bonding plant materials using a binder is known. The wood board is sometimes used by covering the outer surface with a decorative layer so that the plant material adhered and bonded cannot be seen from the outside. As a wooden board provided with such a decorative layer, techniques of Patent Document 1 and Patent Document 2 below are known.

JP-A-9-317334 Japanese Patent Laid-Open No. 9-256746

However, when two or more wooden boards that can be provided with a decorative layer are brought into contact with each other at their side edges and arranged to be used side by side, the appearance of the side edges sometimes becomes a problem.
For example, as shown in FIG. 21, a wooden board 51 having a layer 55 on which plant material is glued and a decorative layer 52 covering the surface thereof, and a layer 56 on which plant material is glued and the makeup covering the surface thereof. A wooden board 53 having a layer 54 is arranged with their side edges butted. In this arrangement, in spite of having the decorative layers 52 and 54, the inner layer 55 and the layer 56 are actually visible from the gap between the line of sight E1 and the line of sight E2. There is a problem that it ends up.

  This invention is made | formed in view of the said situation, and it aims at providing the wooden board which can improve the appearance of the side end of a wooden board, and its manufacturing method.

In order to solve the above problem, the wooden board according to claim 1, a plate-like core material layer in which plant materials are assembled and bonded together with a binder,
A wood board provided with a slice board of wood laminated on one surface of the core material layer,
At one end of the wood board, there is a first notch cut from one side to a predetermined depth,
The first notch has a substantially square cross section,
The first cutout portion is provided with a first terminal treatment member having a substantially L-shaped cross section formed by cutting the prism-shaped first wood in a form along the cutout shape. And
The wood board according to claim 2 is the wood board according to claim 1, wherein the other side end opposite to the one side end has a second notch cut from the one surface side to a predetermined depth. ,
The second notch has a substantially square cross section,
The second cutout portion is provided with a second terminal treatment member having a substantially L-shaped cross section formed by cutting the second prism-shaped wood in a form along the cutout shape. And
The wooden board according to claim 3 is the wooden board according to claim 1 or 2, wherein the other side end opposite to the one side end is the one side end processed by the first terminal processing member. The gist is that it is a stepped shape that can be combined with the stepped shape.
The method for producing a wooden board according to claim 4 comprises:
A wood placement step of placing a prismatic first wood at an end of a wood slice board;
A loading step of placing a vegetable material containing a binder on the slice plate and the first wood;
A plate-like body producing step of compressing the vegetable material containing the binder to form a plate-like core material layer in which the plant-like materials are assembled and bonded together with the binder;
An end processing step of forming an end portion by forming a stepped portion at the end of the plate-like body while cutting the first wood so as to have a substantially L-shaped cross section at the end of the plate-like body. And a gist of the above.

The wood board according to claim 1 includes a plate-like core material layer in which plant materials are assembled and bonded together with a binder, and a wood slice board laminated on one surface of the core material layer. And the 1st notch part cut | disconnected from the one surface side to the predetermined depth is provided in the one side end of this wood board, and the cross section of the 1st notch part makes a substantially square shape. A first terminal processing member having a substantially L-shaped cross section formed by cutting the prism-shaped first wood is arranged in the first cutout portion in a form along the cutout shape.
If it is set as such a structure, it will be covered with the 1st end processing member of the cross-sectional substantially L-shape formed by shaving the prism-shaped 1st wood at the one side end of the wooden board. Therefore, the appearance of one end of the wooden board is improved.

In the wood board according to claim 2, the other side end opposite to the one side end has a second notch portion cut from one surface side to a predetermined depth, and the second notch portion has a substantially square cross section. It has a shape. And the 2nd notch part is arrange | positioned by the form which follows the notch shape, and the 2nd terminal processing member of the cross-sectional substantially L shape formed by shaving prismatic 2nd wood is arranged.
With such a configuration, the other end of the wooden board is covered with a second terminal processing member having a substantially L-shaped cross section formed by cutting the second prism-shaped wood. Therefore, the appearance of the other end of the wooden board is improved.

In the wood board according to the third aspect, the other side end opposite to the one side end has a stepped shape that can be combined with the stepped shape of the one side end processed by the first terminal processing member.
If it is set as such a structure, it will become easy to combine several wooden boards, and construction to a large area will be attained.

  According to the method for manufacturing a wooden board according to the fourth aspect, it is possible to easily manufacture a wooden board subjected to terminal processing for improving the appearance of one end of the wooden board.

The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
It is a perspective view explaining an example of this wood board. It is a disassembled perspective view explaining an example of this wood board. It is sectional drawing explaining the formation process of a 1st terminal process member. It is sectional drawing explaining the state which combined 1st terminal process members. It is a perspective view explaining the other example of this wood board. It is a disassembled perspective view explaining the other example of this wood board. It is sectional drawing explaining the formation process of a 1st terminal processing member and a 2nd terminal processing member. It is sectional drawing explaining the state which combined the 1st terminal processing member and the 1st terminal processing member. It is a perspective view explaining the further another example of this wood board. It is a disassembled perspective view explaining the further another example of this wood board. It is sectional drawing explaining the formation process of a 1st terminal processing member and a 3rd terminal processing member. It is sectional drawing explaining the state which combined the 1st terminal processing member and the 3rd terminal processing member. It is sectional drawing explaining the state which combined the 1st terminal processing member and the 3rd terminal processing member. It is sectional drawing explaining the further another example of this wood board. It is a perspective view explaining the wood arrangement | positioning process in the manufacturing method of this wooden board. It is a perspective view explaining the loading process in the manufacturing method of this wooden board. It is a perspective view explaining the plate-shaped object preparation process in the manufacturing method of this wooden board. It is a perspective view explaining the inversion process in the manufacturing method of this wooden board. It is a perspective view explaining the edge part process process in the manufacturing method of this wood board. It is sectional drawing explaining the further another example of this wood board. It is explanatory drawing explaining the joint of the wooden board which is not terminal-processed.

  The items shown here are for illustrative purposes and exemplary embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

The present invention will be described in detail below.
[1] Wood board The wood board (1) of the present invention (see FIGS. 1 and 2) includes a plate-like core material layer (3) in which plant materials are assembled and bonded together with a binder. Furthermore, a wood slice board (4F) laminated on one surface (3F) of the core material layer (3) is provided. And the 1st notch part (5) (henceforth a "1st notch part") cut | disconnected from the one surface (3F) side to the predetermined depth is provided in the one side end of the wooden board (1) of this invention. The first cutout (5) has a substantially square cross section. The first cutout portion (5) is provided with a first terminal processing member (9) having a substantially L-shaped cross section in a form along the cutout shape. Moreover, the 1st terminal process member (9) is formed by shaving prismatic 1st wood (7) (refer FIG. 3).

  By arranging the first terminal processing member (9), one side end of the core part (3) is covered. And in this site | part, the core part (3) to which the plant material was assembled and bonded can be made invisible (refer FIG. 1). Thereby, the appearance at the one side end of the wooden board (1) can be improved. Further, the first terminal processing member (9) is a solid material formed by cutting the prism-shaped first wood (7). For this reason, it is excellent in aesthetics. In this respect, the appearance at one end of the wooden board (1) can be further improved.

The first terminal processing member (9) has a substantially L-shaped cross section. That is, one side end of the wood board (1) has a stepped shape by having the first terminal processing member (9). By forming this stepped shape, two wooden boards (1) can be arranged in combination at their side edges.
Specifically, as shown in FIG. 4, one wooden board (1) is placed face up (slice board 4F is located on the front side), and the other wooden board (1 ') is faced down (slice board). 4F is placed on the back surface side), and the first terminal processing members (9) of the wood boards (1 and 1 ') can be combined with each other. Thus, when one side end of the wooden board (1) has a stepped shape, it becomes easy to combine the two wooden boards (1), and construction on a large area is possible.

  Furthermore, when the wood boards (1) are combined with each other, the appearance at the combination part can be improved. To explain this point, as shown in FIG. 21, two wooden boards (51 and 53) that are not subjected to terminal processing (not provided with a terminal processing member having a substantially L-shaped cross section) are attached to their decorative layers ( 52 and 54) are arranged side by side so that they face the front side. When these abutted portions are viewed from the front side, the plant materials (55 and 56) that are assembled and bonded from the gap between the decorative layers (52 and 54) are visible from both the line of sight E1 and the line of sight E2. I can do it. On the other hand, in the wood board (1) of the present invention (see FIG. 4), the core material layer (3) covered with the first terminal processing member (9) is not visible. Therefore, the core part (3) is not visible from the line of sight E1, and the appearance of the side edge of the wooden board (1) can be improved.

  Moreover, in the wooden board (1) of this invention, the other side end on the opposite side to the one side end provided with the 1st terminal process member (9) can also be made into the form by which the terminal process was carried out similarly (FIG. 5 and FIG. 6). That is, as shown in FIGS. 5 and 6, the wood board (1) includes the first terminal processing member (9) and the second terminal processing member (11) corresponding to the other end. Can do. In this case, the core material layer (3) is cut from the one surface (3F) side to a predetermined depth, and a second cutout portion (13) having a substantially square cross section (hereinafter, also referred to as “second cutout portion”). Is provided. And it is the form which follows the notch shape of this 2nd notch part (13), and is equipped with the 2nd terminal process member (11) of a cross-sectional substantially L shape. The second terminal processing member (11) is formed by cutting the prismatic second wood (15) (see FIG. 7).

Thus, one wood board (1) is provided with the 1st terminal processing member (9) in the one side end, and the 2nd terminal processing member (11 in the other side end on the opposite side to one side end. ) Can be used in combination with a plurality of wood boards (1) using only this one type of wood board (1).
Specifically, as shown in FIG. 8, a wooden board (front side (slice board 4F is located on the back surface side)) adjacent to the wooden board (1) (front side) (slice board 4F is located on the back side) By combining 1 ′), a large area can be obtained by combining a plurality of wood boards (1) using only one kind of wood board (1). That is, construction on a large area becomes possible.

Further, in the wood board (1) of the present invention, the other end on the opposite side to the one end provided with the first terminal processing member (9) is formed into a stepped shape by the first terminal processing member (9) ( Hereinafter, it can be made into a step shape (hereinafter simply referred to as “second step shape”) that can be combined with “first step shape”. As such a form, the wooden board (1D) of the form shown by FIG. 14 is mentioned. That is, it is a wood board (1D) provided with a notch (17) having a shape that can be combined with the first terminal processing member (9) at the other end. Moreover, the wood board (1B) of the form provided with the 2nd terminal processing member (12) mentioned above using FIG. 7 is also contained.
In addition, a wood board (1C) in the form illustrated in FIGS. The wood board (1C) illustrated in FIGS. 9 to 12 has a part of the core material layer (3) at the other end opposite to the one end provided with the first terminal processing member (9). This is a wood board (1C) that is shaved to expose the prismatic second wood (15) as the third terminal processing member (19) (see FIG. 11). In this wood board (1C), as described above, when part of the core material layer (3) is shaved, part of the prismatic second wood (15) may be shaved.

That is, in the wood board (1C) shown in FIGS. 9 and 10, the core material layer (3) is cut from one side (3F) side to a predetermined depth at one end, and the cross section has a substantially rectangular shape. There is a first cutout (5) formed. The first cutout portion (5) is provided with a first terminal processing member (9) having a substantially L-shaped cross section in a form along the cutout shape. Furthermore, this 1st terminal processing member (9) is formed by shaving prismatic 1st wood (7) (refer FIG. 11).
On the other hand, a third terminal processing member (19) having a convex shape that can be combined with a stepped shape by the first terminal processing member (9) at one side end is provided at the other side end opposite to the one side end. Have. The third terminal processing member (19) is made of a solid material using prismatic second wood (15). Specifically, as shown in FIG. 11, the core material layer (3) is formed by cutting so that a convex shape that can be combined with the stepped shape by the first terminal processing member (9) is exposed. . At this time, if necessary, a part of the prism-shaped second wood (15) can be shaved, and the corresponding convex shape can be shaved from the second wood (15).

  Thus, the wood board (1C) provided with the first terminal processing member (9) at one side end and the third terminal processing member (19) at the other side end is the woody material of this one type. A plurality of wood boards (1C) can be combined using only the board (1C). That is, as shown in FIG. 12, the wooden board (1 ′) facing up (the slice board 4F is located on the upper surface) is placed adjacent to the wooden board (1) facing up (the slice board 4F is located on the upper surface side). By combining them, a plurality of wood boards (1C) can be combined using only one type of wood board (1C). This makes it possible to construct a large area.

  Furthermore, the wood board (1C) in which one wood board includes the first terminal treatment member (9) and the third terminal treatment member (19) is the joint between these wood boards (1C). An excellent appearance can be obtained. That is, as shown in FIG. 13, the core material layer (3) covered with the first terminal processing member (9) is not visible, and the core material portion (3) cannot be seen from the line of sight E1. ing. In addition, the core material layer (3) covered by the third terminal processing member (19) is also invisible, and the core material portion (3) is also invisible from the line of sight E2. That is, the core material layer (3) cannot be seen at the joint between the wooden boards (1) from any angle on the one side, and an excellent appearance can be obtained.

The various wooden boards (1) described above, that is, the wooden board (1A), the wooden board (1B), the wooden board (1C), and the wooden board (1D) can be used in combination with their side ends. That is, for example, wood board (1A) and wood board (1B), wood board (1A) and wood board (1C), wood board (1B) and wood board (1C), wood board (1A) and wood board (1B) ) And a wooden board (1C) or the like.
Furthermore, the wood board (50) shown in FIG. 20 can be used in combination. Although the wooden board (50) is not included in the wooden board (1) of the present invention, the wooden board (50) is a wooden board having a third terminal processing member (19) provided on the wooden board (C) on both side ends thereof. .

In the wood board (1) of the present invention, the slice plate (4) may be laminated only on one surface (3F) of the core material layer (3), but the back surface (one surface 3F) of the core material layer (3). It can also be laminated on the opposite side. That is, the wood board (1) in which the slice plate (4F) is laminated on one surface (3F) of the core material layer (3) and the slice plate (4R) is laminated on the back surface can be obtained.
Moreover, although the slice board (4F) and the 1st terminal process member (9) of the one surface side may be formed from a different kind of wood, it is preferable from a viewpoint of appearance that they are the same kind of wood. Similarly, when the back surface is provided with the slice plate (4R), the slice plate (4R) and the first terminal processing member (9) may be formed of different kinds of wood on the back surface, but are the same kind of wood. It is preferable. Further, when the second terminal processing member (11) is provided and when the third terminal processing member (19) is provided, the same applies to each.
When these slicing plates (4F and 4R), the first terminal processing member (9), and the second terminal processing member (11) are provided, the third terminal processing member (19) is formed of any wood. The type of wood is not limited.

Moreover, the plant material which comprises a core material layer (3) is a material derived from a plant, The plant itself, the part cut out from the plant, the fiber taken out from the plant, etc. are contained.
Plants include kenaf, hemp, jute hemp, manila hemp, sisal hemp, crust, cocoon, cocoon, banana, pineapple, coconut palm, corn, sugar cane, bagasse, palm, papyrus, cocoon, esparto, surreal grass, wheat, rice, bamboo, Examples include various conifers (such as cedar and cypress), broad-leaved trees, and cotton. These may use only 1 type and may use 2 or more types together.

  Among these plants, bast plants are preferred. This is because bast plants generally grow quickly and have excellent carbon dioxide absorption, which can contribute to reduction of the amount of carbon dioxide in the atmosphere, effective use of forest resources, and the like. Furthermore, kenaf is preferable among the bast plants, and kenaf core is most preferable. Since the specific gravity of the kenaf core is smaller than that of other plants, a light core layer (3) can be formed. For this reason, when it uses for a wooden board (1), compared with the case where other plant materials are used, a lightweight wooden board can be obtained. The form of the plant material to be used is not particularly limited, and examples thereof include flakes, chips, fibers, and powders.

Further, the binder constituting the core material layer (3) may be any material as long as it can assemble and adhere the plant materials, but a thermosetting resin is preferable. The kind of this thermosetting resin is not specifically limited. For example, organic polyisocyanate-based thermosetting resin, formaldehyde-based thermosetting resin, epoxy-based thermosetting resin, and the like can be given. Examples of the organic polyisocyanate-based thermosetting resin include diphenylmethane diisocyanate, polymethylene polyphenylene polyisocyanate, and organic polyisocyanates using these modified products. Examples of the formaldehyde-based thermosetting resin include urea resin, melamine resin, and polyhydric phenol resin using formaldehyde. These may use only 1 type and may use 2 or more types together.
In addition to the plant material and the binder, the core material layer (3) can contain a curing agent, a water repellent, a flame retardant, an insecticide, an antiseptic, and the like as necessary.

The thickness of each of the core material layer (3) and the slice plate (4) in the wood board (1) is not particularly limited, but usually the core material layer (3) is formed thicker than the slice plate (4). Yes. That is, when the thickness of the core layer (3) and _{D A,} slice plate thickness (4) as a _{D B,} a _D A> D _B. The thickness correlation is preferably 0.01 ≦ D _B / D _A <1, more preferably 0.01 ≦ D _B / D _A ≦ 0.1, and 0.05 ≦ D _B It is particularly preferred that / D _A ≦ 0.1. Furthermore, _{D B,} for example, be a _{0.1 ≦ D B (mm) ≦} 2.0.

[2] Wood board manufacturing method The wood board manufacturing method of the present invention includes a wood placement step, a loading step, a plate-like body manufacturing step, and an edge processing step.

  The said wood arrangement | positioning process (refer FIG. 15) is a process of arrange | positioning prismatic 1st wood (7) in the edge part of the slice board (4) of wood. In this step, when the wood board (1A) shown in FIG. 1 is manufactured, only the prism-shaped first wood (7) is disposed. On the other hand, in the case of producing the wooden board (1B) shown in FIG. 5 and the wooden board (1C) shown in FIG. 15) is arranged.

The above-described product step (see FIG. 16) is a step of placing a plant material (21) containing a binder on the slice board (4) and the first wood (7).
In this step, the plant material (21) may be used in any form, but it is preferable to use the plant material (21) in a fragmented state. Specifically, chip-like, fibrous and powdery plant materials (21) are preferred.
Moreover, you may use how the binder which carries out assembly adhesion of the plant material (21) may be used. For example, the plant material (21) with the binder attached can be used. Moreover, you may mount a binder simultaneously with the mounting of plant material (21) so that a plant material (21) and a binder may mix.

In the plate-like body producing step (FIG. 17), the vegetable material (21) containing the binder is compressed to form a plate-like core material layer (3) in which the vegetable material (21) is assembled and bonded with the binder. It is a process. In this step, a plate-like body (23) including the slice plate (4), the first wood (7), and the core material layer (3) is formed. The plate-like body (23) includes each member used up to this point. That is, as shown in FIG. 17, when the second wood (15) is used, the plate-like body (23) includes the second wood (15).
Moreover, a slice board (4R) can be laminated | stacked on the back surface (3R) of a core material layer (3) as needed. In this case, as shown in FIG.16 and FIG.17, a slice board (4R) is piled up on the mounted plant material (21), and this slice board (4R) is compressed with another part. Thus, the obtained plate-like body (23) includes a slice plate (4R).

  In the end processing step (FIG. 19), the end of the plate-like body (23) is cut at the end of the plate-like body (23) while cutting the first wood (7) so as to have a substantially L-shaped cross section. This is a step of forming a stepped portion in the portion and performing end processing. That is, it is a step of forming the first terminal processing member (9). FIG. 19 corresponds to the perspective view of FIG. 11, and shows an end processing step for obtaining the wood board (1C) of FIGS. That is, at one side end of the plate-like body, the first wood (7) is cut to obtain the first terminal processing member (9) having a substantially L-shaped cross section. On the other hand, at the other side end opposite to the one side end of the plate-like body, the core material layer (3) is cut and a third terminal processing member having a convex shape that can be combined with the first terminal processing member (9). (19) is obtained. In addition, when performing an edge part process process (FIG. 19), as shown in FIG. 18, the inversion process which reverses the front and back of a plate-shaped object (23) can be performed.

  The shape, size, thickness and the like of the wooden board (1) obtained by this method are not particularly limited. Further, its use is not particularly limited. These can be used as, for example, interior materials and exterior materials in buildings and furniture. More specifically, door cover materials, cover materials for various furniture (desks, chairs, shelves, bags, etc.), partition members, and the like can be mentioned. It can also be used as interior and exterior materials for automobiles, railway vehicles, ships and airplanes.

Hereinafter, the present invention will be described specifically by way of examples.
[1] Embodiment 1
(1) Plant material preparation process After cutting a round-bar-shaped kenaf core into a length of 30 mm, it was cut into a flake shape (a slice chip having a thickness of about 0.5 mm) using a knife ring flaker. A plant material in which a binder is attached by spray-coating a thermosetting resin adhesive (binder) to the obtained flaky kenaf core (containing the powder of kenaf core contained when flaked). 21 was obtained.

(2) Wood arrangement | positioning process As shown in FIG. 15, the prismatic 1st wood 7 which has a square cross section, and the 2nd wood 15 of the same shape were arrange | positioned at the edge part of the cypress board 4F (slice board). .

(3) Loading Step As shown in FIG. 16, the first wood 7 and the second wood obtained in (2) above are applied to the plant material 21 to which the binder obtained in (1) is attached. A slice plate 4F with 15 placed at the end was placed below. And it loaded on the 1st wood 7, the 2nd wood 15, and the slice board 4F so that the vegetable material 21 might be sprinkled from the upper direction.

(4) Slice board arrangement | positioning process As shown in FIG. 16, the cypress board 4R (slice board) was arrange | positioned on the plant material 21 loaded by said (3).

(5) Plate-shaped object manufacturing process As shown in FIG. 17, the laminated body obtained by said (4) was heat-compressed from the upper direction of the cypress board 4R. In this way, a plate-like body 23 in which the thickness of the slice plate 4 was 1 mm and the thickness of the core material layer 3 was 13 mm was obtained. At this time, the plant material 21 is assembled by heat compression, and bonded to each other by a binder (thermosetting resin) to form the core material layer 3. At the same time, the core material layer 3 is bonded to the slice plate 4F and the slice plate 4R to form a plate-like body 23.

(6) Inversion Step As shown in FIG. 18, the front and back of the plate-like body 23 obtained up to the above (5) were inverted and arranged so that the slice plate 4F faced upward.

(7) End processing step As shown in FIG. 19, the first wood is so formed that a member having a substantially L-shaped cross section remains at one end of the plate-like body 23 obtained up to (6) above. 7 was cut together with the slice plate 4F to form the first terminal processing member 9.
Further, the core material layer 3 is cut at the other end opposite to the one end of the plate-like body 23 to form a third terminal processing member 19 having a convex shape that can be combined with the first terminal processing member 9. (See FIG. 11) to obtain a wood board 1 (1C).

(8) Combination of wooden boards The wooden boards 1C obtained up to the above (7) were combined as shown in FIG. That is, the first terminal processing member 9 and the third terminal processing member 19 are combined so that all the wooden boards 1 are arranged with the slice board 4F as a surface. As a result, a large-area board formed by connecting the wooden boards 1 was obtained.
Furthermore, in the obtained large-area board, the joints between the wooden boards 1 were visually recognized by changing the angle from above the slice board 4F as shown in FIG. As a result, the core material layer 3 was not visible from the joints of the wooden boards 1 at any angle, and an excellent appearance was obtained.

  The foregoing examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than limiting. As detailed herein, changes may be made in its form within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials and examples have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosures presented herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope of

  1, 1 ′, 1A, 1B, 1C; wood board, 3; core material layer, 3F; one surface of the core material layer, 4; slice plate, 4F; slice plate on one surface side, 4R; 5; 1st notch, 7; 1st wood, 9; 1st terminal processing member, 11; 2nd terminal processing member, 13; 2nd notch, 15; 2nd wood, 17; Cutout portion that can be combined, 19; third terminal treatment member, 21; plant material, 23; plate-like body, 50; wood board provided with third terminal treatment members on both ends.

Claims (4)

A plate-like core material layer in which plant materials are assembled and bonded together with a binder;
A wood board provided with a slice board of wood laminated on one surface of the core material layer,
At one end of the wood board, there is a first notch cut from one side to a predetermined depth,
The first notch has a substantially square cross section,
The first cutout portion is provided with a first terminal treatment member having a substantially L-shaped cross section formed by cutting the prism-shaped first wood in a form along the cutout shape. And wood board. On the other side end opposite to the one side end, there is a second cutout portion cut to a predetermined depth from the one surface side,
The second notch has a substantially square cross section,
The second cutout portion is provided with a second terminal treatment member having a substantially L-shaped cross section formed by cutting a prismatic second wood in a form along the cutout shape. Woody board described in.   The other side end opposite to the one side end is a stepped shape that can be combined with the stepped shape of the one side end processed by the first terminal processing member. Wooden board. A method of manufacturing a wooden board,
A wood placement step of placing a prismatic first wood at an end of a wood slice board;
A loading step of placing a vegetable material containing a binder on the slice plate and the first wood;
A plate-like body producing step of compressing the vegetable material containing the binder to form a plate-like core material layer in which the plant-like materials are assembled and bonded together with the binder;
An end processing step of forming an end portion by forming a stepped portion at the end of the plate-like body while cutting the first wood so as to have a substantially L-shaped cross section at the end of the plate-like body. And a method for manufacturing a wooden board.

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