JPH0746494Y2 - Laminated wood for construction - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated timber having a rectangular cross-section formed by adhering a plurality of pieces of wood, and more particularly to a laminated timber having a high-quality surface finishing plate such as cypress or Karaki attached to its surface. .

[0002]

2. Description of the Related Art Laminated wood has excellent features that cannot be realized with solid wood. Since a plurality of thin timbers are adhered to form a thick prismatic shape or a thick plate shape, it is possible to effectively reuse a thin waste material that cannot be used by one piece. For this reason,
There is a feature that can reduce the cost. Also, because thin wood is glued on, it has the feature of reducing the errors and cracks peculiar to wood. However, since the laminated wood adheres a large number of woods having different wood grain, a discontinuous wood grain pattern is formed on the surface. Therefore, it can be distinguished from innocence at a glance. This is not a drawback for some applications. For example, a discontinuous grain of wood, which is a combination of a large number of timbers, is a unique pattern as a floor or desk top plate. However, in many applications, there is an image of "cheap goods", which is a collection of small waste materials. If the laminated wood can have the same wood grain as solid wood, it can be used as a high-grade wood for numerous applications.

In order to realize this, a fabrication material in which a surface finishing sheet is bonded to the surface of a core material has been developed (Japanese Utility Model Publication No. 56-54165). The featured material described in this publication has a surface sheet made of synthetic resin bonded to the surface of a core material. When a woodgrain topsheet is glued on, it looks like solid wood. However, a thin surface sheet is easily peeled off, and since it is not a product to which wood is adhered, it has a drawback that it is not wood if it is closely examined.

This drawback can be solved by bonding a thin slice of cypress or the like to a sliced veneer on the surface of the core material. Since the veneer is natural wood, it has the same grain as natural wood. However, the extremely thin veneer has the drawback that it is difficult to clean the edge finish. Also, if it is adhered to the entire surface of a pillar or the like, it will have an unnatural grain different from solid wood. This is because the veneer obtained by slicing one wide plate is bent at the corner of the column and then adhered, so that the grain of the bent edge is different.

Laminated wood which can solve this drawback is Jikken Sho6.
No. 2-41801 and Japanese Utility Model Publication No. 62-37685. In the laminated materials described in these publications, as shown in FIG. 1, a surface finishing plate 2 obtained by cutting wood into a thin plate shape is bonded to the surface of a core material 1.

[0006]

[Problems to be solved by the invention] The laminated wood of this structure is
The surface finishing plate 2 has a sufficient strength, can be firmly bonded, and can prevent peeling of its edge. In addition, it has the feature that it can be made into a beautiful wood grain pattern unique to natural wood. However, in the laminated material to which the plate-shaped surface finishing plate 2 is adhered, the boundary line 3 of the surface finishing plate 2 appears on the surface. There is a drawback that the wood grain becomes discontinuous at the boundary line 3 and is a laminated wood. This drawback can be reduced by chamfering the corners, as shown by the dashed line in FIG. However, in order to obscure the boundary of the surface finishing plate 2 by chamfering, it is necessary to match the corner angle of the chamfering with the boundary line of the surface finishing plate 2. Therefore, it has a drawback that it cannot be used in applications where chamfering is not possible.

This drawback is as shown in FIG. 2, in which the side edge of the surface finishing plate 2 is cut at an angle of 45 degrees, and the cut surface is cut into the core material 1.
It can be solved by adhering at the corner angle of. The laminated wood of this structure can make the surface grain pattern almost indistinguishable from solid wood as long as the surface finishing plate 2 is accurately adhered. However, the laminated material having this structure has a drawback that it is difficult to bond the surface finishing plate 2 to the core material 1. Particularly, the surface finishing plate 2 needs to be adhered to the core material 1 in a state where both side surfaces are in close contact with each other without a gap. In FIG. 2, when the surface finishing plate 2A is displaced in the direction of the arrow a, a gap is formed between the surface finishing plate 2B and the surface finishing plate 2B which is adhered to the center. Has a drawback that it cannot firmly adhere to the surface of the core material 1. For this reason, the laminated material of this structure has a drawback that the surface finishing plate, which is displaced left and right, must be accurately positioned and adhered to the core material, resulting in an increase in manufacturing cost.

The present invention was developed with the object of further solving this drawback, and the important purpose of the present invention is that it can be mass-produced easily, easily, and at low cost, and that it can be used with solid wood and almost The purpose is to provide laminated wood for construction that has an indistinguishable appearance.

[0009]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the laminated laminated wood of the present invention has the following constitution. That is, the laminated wood for construction of the present invention is made by adhering a plurality of slender woods to form a core material 1, and the surface of the core material 1 is
This is an improved product of a rectangular cross section obtained by bonding a surface finishing plate 2 obtained by processing wood to a predetermined thickness, and is characterized by having the following configuration.

(A) As the surface finishing plate 2, side finishing plates 2a made of cypress, Karaki, etc. are adhered to the two opposite sides of the core material 1. (B) The central finishing plate 2b made of cypress, Karaki or the like is bonded to the central surface located between the two side surfaces to which the lateral finishing plate 2a is bonded. (C) The central finishing plate 2b is fitted and adhered to a vertical groove 4 vertically extended on the central surface so that the central finishing plate 2b can be adhered to a fixed position without displacement. (D) Both side surfaces 4A of the vertical groove 4 in order to position the adhesive surfaces of the side surface finishing plate 2a and the central finishing plate 2b at the corners of the laminated wood.
Are inclined in a direction to widen the opening width. (E) The opening edge of the vertical groove 4 has a corner angle of the laminated wood, or
Located near it. (F) Adhesive side faces 2c located on both sides of the central finishing plate 2b
Is inclined in the direction along the side surface 4A of the vertical groove 4, and the bonding side surfaces 2c of the central finishing plate 2b are bonded to both side surfaces 4A of the vertical groove 4 without a gap.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. However, the following examples exemplify laminated materials for embodying the technical idea of the present invention,
The laminated material of the present invention does not specify the material, shape, structure, and arrangement of the components to the following structures. The laminated wood of this invention can be modified in various ways within the scope of the utility model registration claim.

Further, in this specification, the numbers corresponding to the members shown in the embodiments are referred to as "utility model registration request" and "to solve the problem" so that the utility model registration request can be easily understood. It is added to the members shown in the column of "means for performing". However, the members shown in the scope of claims for utility model registration are by no means limited to the members of the embodiment.

FIG. 3 shows a cross sectional structure of the laminated wood.
In the laminated wood for construction shown in this figure, three slender pieces of wood are adhered to form a core material 1, and a surface finishing plate 2 obtained by processing wood into a predetermined thickness is adhered to the surface of the core material 1. The cross section is a square pillar. The core material 1 is formed by adhering a plurality of thin waste materials,
It has a predetermined shape.

A side surface finishing plate 2a as a surface finishing plate 2 is adhered to both opposite side surfaces 4A of the core material 1. The central finishing plate 2b is bonded to the central surface located between the two side surfaces 4A to which the side surface finishing plate 2a is bonded. The same type of wood is used for the side surface finishing plate 2a and the center finishing plate 2b. For the surface finishing plate 2, for example, cypress, Karaki, Japanese cedar with beautiful grain, zelkova, etc. are used. The central finishing plate 2b bonded between the side surface finishing plates 2a is fitted and bonded in the vertical groove 4 formed by vertically extending the central surface. Therefore, the central finishing plate 2b is processed to have a width that can be fitted into the vertical groove 4.

The vertical groove 4 is provided in a part of the side surface finishing plate 2a and the core material 1. The vertical groove 4 inclines both side surfaces 4A in a direction to widen the opening width in order to position the boundary between the side surface finishing plate 2a and the central finishing plate 2b at the corner of the column. In the laminated material shown in the figure, the side surface 4A of the vertical groove 4 is inclined at 45 degrees. The opening edge of the vertical groove 4 is located at the corner of the laminated member or in the vicinity thereof.

The adhesive side surfaces 2c located on both sides of the central finishing plate 2b are inclined by 45 degrees in the direction along the side surface 4A of the vertical groove 4 so that they can be adhered to the side surface 4A of the vertical groove 4 without a gap.

The laminated wood of this structure is manufactured by the following steps. A plurality of waste materials are adhered to manufacture the prismatic core material 1. The side surface finishing plates 2a are bonded to both surfaces of the core material 1. Since the side surface finish plate 2a is provided with the vertical groove 4 after being bonded to the core material 1, it is not necessary to accurately align the surface to which the central finish plate 2b is bonded. The side surface finishing plate 2a and the core material 1 are engraved to form the vertical groove 4. The vertical groove 4 is provided by extending vertically using a groove carving machine. Both sides of the central finishing plate 2b are cut diagonally according to the width of the vertical groove 4. An adhesive is applied to the vertical groove 4 and the central finishing plate 2b to bond the central finishing plate 2b to the vertical groove 4. After that, if necessary, the corners are chamfered to have a width of about 0.5 to 3 mm. As shown in FIG. 4, the laminated wood produced in this step has a boundary between the central finishing plate 2b and the side finishing plate 2a from the corner of the pillar to the surface side of the side finishing plate 2a, for example, 0.3 It can also be offset by about 3 mm. The laminated material having this structure can be used by cutting the bonded central finishing plate 2b to some extent.

Further, the laminated material shown in FIG. 5 is used for a table plate, and has side finishing plates 2a bonded to the upper and lower sides and a central finishing plate 2b bonded to the right side. The core material 1 has a plate-like shape having a predetermined thickness by adhering a plurality of waste materials. In this laminated member, the vertical finishing grooves 4 are formed on the right side after the side finishing plates 2a are bonded to the upper and lower sides. The vertical groove 4 is formed by inclining both side surfaces 4A in a direction in which the opening becomes wider. The central finishing plate 2b is processed into a shape that can be fitted into the vertical groove 4, and is bonded to the vertical groove 4.

Furthermore, the laminated material shown in FIG. 6 is used for a frame material such as a door. In the figure, the right side surface 4 of the core material 1 is shown.
A central finishing plate 2b is bonded to A, side surface finishing plates 2a are bonded to the upper and lower surfaces, and a decorative plate 2d is bonded to the left surface. A vertical groove 4 having a wide opening is provided in the core material 1 to which the side surface finishing plate 2a is bonded, and a central finishing plate 2b is bonded to the vertical groove 4. The decorative plate 2d is arranged inside the frame. The central finishing plate 2b may have its outer periphery cut away in accordance with the mounting location of the door. Therefore, in the laminated wood shown in FIG. 6, the boundary between the central finishing plate 2b and the side finishing plate 2a is slightly shifted to the side finishing plate 2a surface. The boundary with the finishing plate 2a is processed so as to come to the corner of the laminated wood. In the actual use state, the central finishing plate 2b and the side finishing plate 2a
The boundaries of may not be located exactly at the corners of the laminated wood. However, the deviation between the boundary between the central finishing plate 2b and the side finishing plate 2a and the corner angle of the laminated wood is 0.2 mm to 1.5 mm.
At about mm, it is almost invisible to the eye.

Further, the laminated wood shown in FIG. 7 is used as a plate material for covering columns in order to form a large wall structure. In the figure, the central finishing plate 2b is provided on the lower surface of the core material 1 and the left and right surfaces. The side surface finishing plate 2a and the decoration plate 2d are bonded to the upper surface and the upper surface, respectively.
The decorative plate 2d is chamfered, and the chamfered boundary is used as the boundary of the side surface finishing plate 2a to obscure the boundary between the two.

Further, the laminated member shown in FIG. 8 is used for a top plate of a desk or the like, and in the figure, side finishing plates 2a are adhered to both sides of the core material 1 and a central finishing plate 2b is adhered to the upper surface thereof. In the laminated material of this structure, the side surface finishing plate 2a is thickened so that the peripheral edge has sufficient strength, and the wide central finishing plate 2b is thinned to reduce the manufacturing cost.

[0022]

EFFECTS OF THE INVENTION In the laminated wood for construction of the present invention, side finishing plates are adhered to two opposing surfaces of the core material, vertical grooves are provided between the side finishing plates, and a central finishing plate is inserted into the vertical grooves. They are adhered in the same condition, and the side finish plate and the central finish plate are used to clean the surface. The laminated wood of this structure has a surface finish plate composed of a side finish plate and a central finish plate, and by using high-grade wood such as cypress and Karaki, it has an appearance that is almost indistinguishable from solid wood. There is. This is because the boundary line between the central finishing plate and the side finishing plate is located exactly at the corner of the laminated wood.

Furthermore, a remarkable feature of the laminated wood of the present invention is that the side finishing plate and the central finishing plate can be easily and easily
Moreover, it is possible to bond in place without displacement. This feature is that the side surface finishing plate is bonded to two facing surfaces of the core material,
After that, the side finishing plate and the core material are engraved to provide a vertical groove,
It is realized by fitting in the vertical groove and adhering the central finishing plate. The central finishing plate fitted into the vertical groove and bonded can prevent lateral displacement and can be bonded. Even if the side surface finishing plate is slightly displaced when it is bonded to the core material, a vertical groove is formed in the side surface finishing plate to bond the central finishing plate, so that the boundary surface with the central finishing plate is not displaced. Therefore, the laminated wood of this invention has a feature that the side finishing plate and the central finishing plate can be easily and easily adhered to each other efficiently, and that high-quality products almost indistinguishable from solid wood can be mass-produced at low cost. is there.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a conventional laminated material.

FIG. 2 is a sectional view showing an example of a conventional laminated material.

FIG. 3 is a cross-sectional view of laminated wood showing an embodiment of the present invention.

FIG. 4 is an enlarged sectional view of the corner angle of the laminated wood showing the embodiment of the present invention.

FIG. 5 is a sectional view of a laminated member showing another embodiment of the present invention.

FIG. 6 is a cross-sectional view of laminated wood according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view of laminated wood showing another embodiment of the present invention.

FIG. 8 is a cross-sectional view of laminated wood showing another embodiment of the present invention.

[Explanation of symbols]

1 ... Core material 2 ... Surface finishing plate 2a ... Side surface finishing plate 2b ... Central finishing plate 2c ...
Adhesive side surface 2d ... Decorative plate 3 ... Boundary line 4 ... Vertical groove 4A ... Side surface

Claims (1)

[Scope of utility model registration request] 1. A core material (1) is obtained by adhering a plurality of slender wood pieces, and a surface finishing plate (2) obtained by processing wood pieces to a predetermined thickness is adhered to the surface of the core material (1) and crossed. A laminated lumber for construction, which has the following structure in a laminated lumber having a square surface. (A) Surface finishing plate (2) on the two opposite sides of the core material (1)
The side finishing plate (2a) is adhered as. (B) The central finishing plate (2b) is adhered to the central surface located between the two side surfaces to which the side surface finishing plate (2a) is adhered. (C) The central finishing plate (2b) is fitted in and adhered to a vertical groove (4) which is vertically provided on the central surface. (D) Both side surfaces (4A) of the vertical groove (4) are inclined in a direction to widen the opening width. (E) The opening edge of the vertical groove (4) is located at the corner of the laminated wood or in the vicinity thereof. (F) Adhesive sides (2c) located on both sides of the central finishing plate (2b)
Is inclined in the direction along the side surface (4A) of the vertical groove (4), and the side surfaces (2c) of the central finishing plate (2b) are bonded to both side surfaces (4A) of the vertical groove (4) without any gap. ing.