JPH0574662B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for joining assembly members such as frames and panels.

[Conventional technology]

Conventionally, methods for joining assembly members, especially joining members by butting them together at corners, include applying adhesive to the joint end surfaces and fixing them using materials such as dowels, and methods that use projections and notches. There is a method of applying an adhesive to the joining end surface in the same manner as described above, and fitting the protrusion into the notch. Furthermore, there has also been a method in which a corner portion is formed by providing a part of one member in a comb-teeth shape, bending it, and fixing it using an adhesive, without abutting the two members.

[Problem that the invention seeks to solve]

However, in the conventional method of joining two parts described above, since it takes time for the adhesive to harden, the assembled product must be temporarily fixed, and it is not suitable when the area of the joint end surface is large. A problem arose.

[Means for solving problems]

The present invention has been made in consideration of the above-mentioned conventional problems, and includes providing a recess in a direction perpendicular to the joining end surface of each member constituting the joining part, and having an expansion rate of 105 to 105, which corresponds to the shape of the recess. The above-mentioned conventional problems are solved by coating or impregnating 125% of the fitting members with an adhesive, fitting the fitting members into the respective recesses, and joining the joint end surfaces.

[Effect]

In the present invention, the fitting member fitted into the recess expands to temporarily fix the two members that are butted against each other, and then the adhesive hardens to adhesively fix the two members.

〔Example〕

Next, the present invention will be explained in detail based on an embodiment shown in FIGS. 1 to 3.

In the figure, reference numeral 1 denotes a member constituting, for example, a frame body A, and first, recesses 2 are cut and provided in each of the joining end surfaces 10 of this member 1. The recess 2 has a polygonal shape with a surface perpendicular to the joint end surface 10.

Next, an adhesive 4 is applied or impregnated onto the fitting member 3 which corresponds to the shape of each of the recesses 2 and occupies the space B formed by combining the recesses 2. The fitting member 3
is a material that expands when applied or impregnated with adhesive 4. For example, solid wood or laminated wood that exhibits an expansion rate of 105 to 125% when applied with vinyl acetate-based aqueous emulsion type adhesive is suitable. Any material that comes into close contact with each inner surface of the recess 2 may be used.

Then, the fitting member 3 is fitted into the recess 2 and the joining end surfaces 10 of the members 1 are joined, and the fitting member 3 expands within the recess 2 to temporarily fix the two members 1, and the adhesive 4 Once cured, the member 1 is reliably bonded and fixed.

In order to improve the adhesion between the adhesive and the member, for example, if the adhesive is of a vinyl acetate water-based emulsion type, plywood, particle board, or other wood-based board materials are suitable as the member. However, the material is not limited to this, as long as it can be easily bonded to a vinyl acetate-based aqueous emulsion type adhesive and can be easily cut.

〔Effect of the invention〕

As explained above, according to the method of the present invention,
A recess is provided in a direction perpendicular to the joint end surface of each member constituting the joint part, and an adhesive is applied or impregnated on the fitting member corresponding to the shape of the recess and having an expansion rate of 105 to 125%, and the fitting member is coated with or impregnated with an adhesive. Since the joint end faces are joined by fitting into each recess, there is no need to temporarily fix or pressurize the assembled product until the adhesive hardens, simplifying the product manufacturing process, and joining using only the adhesive. For example, it can be bonded more firmly than when
It has excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an embodiment of the method for joining assembly members according to the present invention, FIG. 2 is an explanatory diagram of a frame assembled according to the embodiment, and FIG.
It is an explanatory view showing a section at a line part. 1... member, 2... recess, 3... fitting member, 4
... Adhesive, 10 ... Joint end surface.

Claims (1)

[Claims] 1. A recess is provided in a direction perpendicular to the joining end surface of each member constituting the joint, and an adhesive is applied or impregnated on the fitting member corresponding to the shape of the recess and having an expansion rate of 105 to 125%, and the said fitting is A method for joining assembled members, characterized by fitting the members into respective recesses and joining the joining end surfaces.