JP2001150411A - Glued laminated wood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a glued laminated wood, in which a plurality of sheets of board material are bonded and fixed and thereafter after-work for flatly working the outside surface of a laminate is unnecessary and turnings of wood stuck with an adhesive are prevented from being generated and also an adhesive area is increased and enhancement of bonding strength is contrived and enhancement of strength in the direction orthogonal to the bonded face can be contrived and moreover a through-hole capable of passing a bolt is easily formed in the nearly central part. SOLUTION: The glued laminated wood can be used as a column or a beam by bonding and fixing a plurality of sheets of board material. The glued laminated wood is constituted of forming an engagement part with an uneven shape which is engaged with the bonding faces of a plurality of sheets of board material and prevents displacement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated material which can be used as a column or a beam by bonding and fixing a plurality of plate members.

[0002]

2. Description of the Related Art Conventional laminated materials are adhered to a plurality of plate members having substantially the same dimensions using an adhesive, and are firmly fixed by pressing with a press.

[0003]

In the conventional glued laminated wood, an adhesive is applied to a plurality of plate materials, and the laminated materials are overlapped with each other and pressed and fixed with a press. Therefore, the positioning of the adhesive-coated plate materials is accurately performed. Even if it is performed, there is a disadvantage that unevenness is generated on the outer side surface of the superimposition, and post-processing for flattening the outer side surface after fixing is required.

The present invention has been made in view of the above-mentioned conventional drawbacks,
No need for post-processing to flatten the outside surface of the overlap after bonding and fixing multiple boards, preventing the generation of wood shavings with adhesive and increasing the bonding area to improve bonding strength It is an object of the present invention to provide a laminated material which can improve strength in a direction perpendicular to an adhesive surface and can easily form a through-hole through which a bolt can be passed at a substantially central portion. And

The above and other objects and novel features of the present invention will become more completely apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only, and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above-mentioned object, the present invention relates to a laminated material which can be used as a column or a beam by bonding and fixing a plurality of plate materials. To form a glued laminated member having a concave-convex engaging portion for preventing misalignment by engagement with the laminated member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 6, reference numeral 1 denotes a laminated material having a through hole 2 formed at the center and which can be used as a column or a beam of the present invention. The glued laminated lumber 1 is composed of four plates 3, 3A, 3B, 3C having substantially the same dimensions, and the four plates 3, 3A,
Grooves 4, 4 each formed in a substantially semicircular shape to form a through hole 2 at a joint surface portion at a substantially central portion of plate materials 3 </ b> A, 3 </ b> B located at the central portion of 3 </ b> B, 3 </ b>C; Engaging portions 7, 7, 7, 7, which include an engaging groove 5 and an engaging piece 6, which are formed to engage with the joining surfaces of the plate members 3, 3A, 3B, 3C to prevent displacement, and 7, 7, 7, and 4
It is applied to the joint surfaces of the sheet materials 3, 3A, 3B, 3C and pressed by a press machine 8 in a state where the engaging portions 7, 7, 7, 7, 7, 7 are engaged as shown in FIG. By doing so, it is composed of adhesive layers 9, 9, 9 for firmly fixing the four plate members 3, 3A, 3B, 3C.

In the laminated wood 1 having such a structure, the two side surfaces of the four plate members 3, 3A, 3B, 3C which are overlapped with each other are flat surfaces with no step, so that they protrude from the joint surfaces as post-processing. Just by removing the adhesive, it can be used in the same manner as a conventional pillar or beam, and when used as a pillar as shown in FIG. By inserting a long bolt 10 in advance and forming holes 13 and 13 with a drill or the like in advance in the portions of the upper and lower members 11 and 12 to which the The members 11 and 12 and the glued laminated lumber 1 can be tightened and fixed by bolts 10 and nuts 15 with washers 14 and 14 interposed therebetween. In addition, as shown in FIG. 6, the laminated wood 1 can be similarly used as a beam to which the bolts 10 and the nuts 15 can be fixed.

[0010]

Next, different embodiments of the present invention shown in FIGS. 7 to 18 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description will be omitted.

In the second embodiment of the present invention shown in FIGS. 7 to 9, the main difference from the first embodiment of the present invention is that a central plate 3D located between the plates 3, 3C is provided. In order to form the through-hole 2 in the center part, the laminated wood constituted by using such small-sized plates 3d, 3d is that small-sized plates 3d, 3d smaller than half the width are used. Even in the case of 1A, the same operation and effect as those of the first embodiment of the present invention can be obtained.

The third embodiment of the present invention shown in FIGS. 10 to 12 is mainly different from the second embodiment of the present invention in that four plate members 3, 3E, 3E and 3C are provided. In the point that the narrow width plates 3d and 3d are used, the same effects as those of the second embodiment of the present invention can be obtained even with the laminated wood 1B thus configured.

The fourth embodiment of the present invention shown in FIGS. 13 to 15 is mainly different from the first embodiment of the present invention in that a trapezoidal engaging groove 5A and an engaging piece 6A are provided. In the point that the engaging parts 7A, 7A, 7A, 7A, 7A, 7A composed of the following are used, the same effects as those of the first embodiment of the present invention can be obtained even in the laminated material 1C thus configured. Is obtained.

The fifth embodiment of the present invention shown in FIGS. 16 to 18 differs from the first embodiment of the present invention mainly in that four plate members 3, 3E, 3E and 3C are provided. The laminated material 1D formed by using such plate members 3, 3E, 3E, and 3C may be used in that only the engaging portions 7, 7, 7, 7, 7, 7, 7 are used.

In each of the above embodiments of the present invention, a laminated material in which four, three, and five sheets are laminated is described.
The present invention is not limited to this, and can be similarly applied to a case where two or more plate members are stacked. Further, in each of the embodiments of the present invention, the case where one through-hole 2 is formed at the center portion has been described. You may. Further, in the present invention, the engaging portions 7 and 7A formed on the plate material may be at one or more places, and the shape may be any shape as long as there is no displacement in the engaged state.

[0016]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) In a laminated material that can be used as a column or a beam by bonding and fixing a plurality of plate materials, a concave and convex shape that is engaged with a joint surface of the plurality of plate materials to prevent displacement is provided. Since the joining portion is formed, positioning of the plate materials to be overlapped can be achieved by the engaging portion. Therefore, a step is generated on the side surface of the laminated plate material as in the related art, and shavings containing the adhesive are produced by post-processing, so that problems such as trouble in processing can be reliably prevented.

(2) According to the above (1), the bonding area can be increased by the engaging portion. Therefore,
The adhesive strength can be improved.

(3) According to the above (1), the strength in the direction perpendicular to the joint surface can be increased by the engagement portion. Therefore, it can be used as a column or a beam at a site where sufficient strength is obtained.

(4) Claims 2 and 3 also have the above (1) to (3).
As well as the same effect as above, since a through hole is formed in the center, bending and torsional strength is increased compared to solid columns and glued laminated wood, and it is possible to make a glued wood that is strong against bending and twisting , Can also be mounted by penetrating bolts.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is an exploded perspective view of the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a fixed state of the bonding surface according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram of a use state as a pillar according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram of a use state as a beam according to the first embodiment of the present invention.

FIG. 7 is a perspective view of a second embodiment of the present invention.

FIG. 8 is a sectional view taken along line 8-8 in FIG. 7;

FIG. 9 is an exploded perspective view of a second embodiment of the present invention.

FIG. 10 is a perspective view of a third embodiment of the present invention.

FIG. 11 is a sectional view taken along the line 11-11 in FIG. 10;

FIG. 12 is an exploded perspective view of a third embodiment of the present invention.

FIG. 13 is a perspective view of a fourth embodiment of the present invention.

FIG. 14 is a sectional view taken along the line 14-14 in FIG. 13;

FIG. 15 is an exploded perspective view of a fourth embodiment of the present invention.

FIG. 16 is a perspective view of a fifth embodiment of the present invention.

FIG. 17 is a sectional view taken along the line 17-17 in FIG. 16;

FIG. 18 is an exploded perspective view of a fifth embodiment of the present invention.

[Explanation of symbols]

1, 1A, 1B, 1C, 1D: laminated wood, 2: through hole,
3, 3A, 3B, 3C: plate material, 4: groove,
5, 5A: engagement groove, 6, 6A: engagement piece, 7, 7
A: engagement part, 8: press machine, 9: adhesive layer,
10: bolt, 11: upper member, 12: lower member, 13: hole, 14: washer, 1
5: Nut.

Claims (3)

[Claims] 1. A laminated material which can be used as a column or a beam by bonding and fixing a plurality of plate members, and having an uneven shape for engaging a joining surface of the plurality of plate members to prevent displacement. A laminated wood characterized by forming a part. 2. A glued laminated member which can be used as a column or a beam by adhering and fixing at least four or more plate members, wherein a substantially central part of two plate members located at a central part of the at least four or more plate members. A groove formed in a semicircular shape so as to form a through hole, and an engaging portion having a concave-convex shape for engaging with a joining surface of the at least four or more plate members to prevent displacement. And glulam. 3. A laminated material which can be used as a pillar or a beam by bonding and fixing at least three or more plate materials, wherein a plate material located at a central portion can form a through hole at a central portion. A small-width plate having a width smaller than the width is used, and an engaging portion having a concave-convex shape is formed to engage with the bonding surface of the at least two or more plate members to prevent displacement. Wood.