JPH09155809A - Bonding structure for connecting part of lumber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a precise fit, preventing adhesives from dripping down and without causing error in assembling dimension due to thickness of adhesive layer by providing an adhesive injection groove in one or both joining surfaces of members to be connected along the joining surfaces and providing an opening in the groove outside a connection part. SOLUTION: An adhesive injection groove 3 is formed from outside of one side of a joining surface 2 toward the other side but is not formed through the other side. An opening 4 is formed only on one side. In the case that a through hole is provided, when adhesive is injected, an opening on the side opposite to the injection side is temporarily covered with adhesive tape and then adhesive is injected and the tape is removed after injection. The adhesive is forcibly injected by a pump. Another adhesive injection groove 3 also is provided in a direction intersecting the groove 3 formed from one side toward the other side so as to communicate with it to increase adhesion area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive structure of a wood connecting portion such as a joint, a joint or a simple joint surface in a wooden construction or a wooden work.

[0002]

2. Description of the Related Art Conventional joints, joints, simple joint surfaces, and the like connecting parts of wood do not use an adhesive, but there are some connecting parts by bolts or the like. If an adhesive is used, it will be applied with a brush, and the adhesive will drip.

[0003]

The connecting portion of wood includes a joint for connecting a pair of members in the lengthwise direction, a joint in which two or more members are connected at a right angle or at an angle, and the like. There are various types of joints such as phase joints, seat dovetail joints and chase joints, and various types of joints such as flat tenon and long tenon.

Most of these joints are connected by fitting the mortise side member and the mortise side member or by bolts.

However, in a frame structure such as a wooden construction, when a large impact is applied such as an earthquake, the connection by fitting, for example, the neck portion of the hook in the hook joint, the tip of the hook in the chasing joint, the so-called protrusion. Since there is a weak point in the part to be etched, various shapes have been devised. In addition, the tenon is also overwhelming at the joint.

Further, in the case of connection by bolts, when a large impact is applied, the wood is torn, the bolts are loosened, or the bolts are rusted. Therefore, if the fitting portion of the connecting member is fitted with the adhesive and then fitted, the fitting is prevented from loosening, the strength is further increased, and it is possible to cope with shaking and impact such as an earthquake.

However, when the adhesive is applied, the adhesive is attached to the brush and applied directly to the joint surface of the connecting member, so that the adhesive drips from the brush and stains the vicinity of the joint surface, or the adhesive is removed from the joint surface. The sagging connecting member is soiled.
Also, after applying the adhesive, if the fitting is applied to the connecting portion, the thickness of the adhesive layer is added, and the assembly dimension is distorted. In that case, the inclination and distortion cannot be corrected later.

From the above point of view, the present invention, in the case of using an adhesive for the connecting portion of the wood in a wooden construction or a wooden work, etc., does not drip the adhesive by attaching it after connecting, It is an object of the present invention to provide an adhesive structure of a connecting portion of wood which enables an accurate fitting without an assembly dimension deviation due to a thickness of an adhesive layer.

[0009]

According to the present invention, an adhesive injection groove is provided on the surface of one or both joint surfaces of a connecting member along the joint surface, and the adhesive injection groove is opened at the outside of the connecting portion. It is characterized by having a part. Further, according to the present invention, an attachment material is provided at the connection portion of the connection member, and an adhesive injection groove is provided on the surface of the joint surface of one or both of the connection member and the attachment material.

According to the present invention, therefore, if the joining surfaces of the joining members are fitted or joined by bolts, nails, strings, wires, etc., and then the adhesive is injected from the opening of the adhesive injection groove, the adhesive is connected. It is injected into the adhesive injection groove provided on the joint surface of the members to bond the connecting member. Further, the adhesive provided on the connecting portion of the connecting member is also injected with the adhesive from the opening of the adhesive injection groove, and is adhered to the connecting member side.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are perspective views showing an embodiment in which the structure of the present invention is applied to a chase joint,
FIG. 3 is a front view of a joint surface showing another embodiment of the structure of the present invention, FIG. 4 is a plan view showing an embodiment in which the structure of the present invention is applied to a joint, and FIG. It is a top view which shows an adhesion structure.

1 is a connecting member, and an adhesive injection groove 3 is formed along the joint surface 2 on the surface of one or both of the joint surfaces 2 of the pair of opposing connecting members 1. There is.

The adhesive injection groove 3 is formed from the outer side portion on one side of the joint surface 2 toward the opposite side, but does not penetrate to the opposite side. The opening 4 is formed only on one side. If it is to be penetrated, after the adhesive is injected, the opening on the side opposite to the injection side is applied with a temporary adhesive such as adhesive tape, then the adhesive is injected, and after injection, the temporary adhesive such as adhesive tape is removed. . The adhesive is injected by press fitting with a pump or the like.

The adhesive injection groove 3 has a pair of connecting members 1.
It is formed on either one or both of the joint surfaces 2, but when formed on both, the adhesive injection grooves 3 may be formed so as to match each other as shown in FIG. As described above, the position of the adhesive injection groove 3 may be shifted.

Further, the adhesive injection groove 3 is, as shown in FIG.
The adhesive injection groove 3 may be formed in a direction intersecting with the adhesive injection groove 3 formed from the outer side portion on one side to the opposite side so that both grooves are communicated with each other to widen the adhesion area. In this case, there are four openings 4 in the drawing, but even if there are fewer openings 4, there is no influence because the grooves 3 communicate with each other. Further, FIG. 4 shows a case where the adhesive injection groove 3 is provided only on the tenon side of the connecting member 1. Further, FIG. 5 shows a case where the attachment material 5 is attached to the connection portion of the connection member 1 and the adhesive injection groove 3 is provided on the connection member 1 side, and the connection member 1 and the attachment material 5 are bonded.

[0016]

According to the present invention, since the adhesive can be injected and bonded to the connecting portion after the connecting members are connected, the wooden structure can be bonded after the connection and the inclination and distortion of the building are corrected.
Accurate work is possible, and the bonding work can be done collectively after connection, and there is no waiting time, and work efficiency is improved. Also, since the adhesive is injected into the connecting portion after connection, an adhesive layer is not formed as compared with the case where the adhesive is applied to the joint surface first, so the dimensions of assembly of the joint surface do not change and accurate connection is achieved. Become.
Further, unlike the case where the adhesive is applied to the joint surface with a brush, the adhesive is poured into the groove, so that the adhesive does not drip and the connecting member and the floor surface are not soiled. INDUSTRIAL APPLICABILITY The present invention having the above effects is a joint of wooden constructions or wooden works, a joint of a joint, a joint of a three-piece joint, etc. Applicable to connecting parts of wood such as attachments,
It is a useful invention that further strengthens the connection of the connecting portions and can sufficiently endure an earthquake or a large shock.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the structure of the present invention.

FIG. 2 is a perspective view showing an embodiment of the structure of the present invention.

FIG. 3 is a front view of a joint surface showing another embodiment of the structure of the present invention.

FIG. 4 is a plan view showing an embodiment of the structure of the present invention.

FIG. 5 is a plan view showing an embodiment of the structure of the present invention according to claim 2;

[Explanation of symbols]

 1 Connection Member 2 Bonding Surface 3 Adhesive Injection Groove 4 Opening 5 Adjunct

Claims (2)

[Claims] 1. An adhesive injection groove is provided on the surface of one or both of the joint surfaces of the connecting member along the joint surface, and the adhesive injection groove has an opening on the outer side of the connecting portion. Adhesive structure for timber connection. 2. An attachment material is provided at the connecting portion of the connecting member,
The adhesive structure for a wood connecting portion according to claim 1, wherein an adhesive injection groove is provided on the surface of the joint surface of one or both of the connecting member and the attachment.