JP2000283125A - Joining structure of tenon frame assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To strengthen looseness caused by a weight load, a sliding load, the lapse of hours, and the like by inserting a tennon of one side material into a mortice of the other material, and forming a slit crossing the mortice on a side surface of the other material, and inserting and fixing the dowel into the slit through adhesive. SOLUTION: In a condition in which a tennon 2 of one side material 1 is inserted into a mortice 4 of the other material 3, a slit 5 crossing the tennon 2 is formed on a side surface of the other material 3. A dowel 6 is inserted and fixed to the slit 5 through an adhesive 7. A joining surface is enlarged comparing with a screw and a nail, a tennon frame assembly is carried out strongly. Even if looseness is generated by excessive load of vertical and horizontal directions, rough treatment, and the lapse of hours, durability is held without slipping off it and breaking a frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of a tenon frame for furniture and a structure having a frame for supporting a load, such as a chair or a desk.

[0002]

2. Description of the Related Art Now, taking an example of an infant chair as shown in FIG. 1, a joint between a beam and a leg is assembled by a tenon frame (fitting of tenon and tenon). (Figure round frame part).
However, the chair also became a plaything for infants, riding,
Treated violently, such as shaking or lying down, no matter how tight the tenon, the frame loosens over time and the frame comes off or eventually collapses. And once the tenon is broken, it is difficult to modify it, so even if the other parts can withstand use, the chair will be replaced anew, so it is not economically crucial.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made in consideration of the following.
To provide a joint structure of a mortise frame that is resistant to backlash and the like due to aging.

[0004]

According to the present invention, in order to achieve the above-mentioned object, in the tenon frame, a tenon of one of the members is secured.
Is inserted into the mortise 4 of the other material 3 and the other material 3
A dowel hole 5 that crosses the mortise 2 is formed on the side surface of the mortise.
A dowel 6 is inserted into and fixed to the dowel hole 5 with an adhesive 7 therebetween.

In the above structure, the dowel 6 is a joint structure of a tenon frame in which the dowel 6 is a spiral dowel.

[0006]

As described above, according to the present invention, in addition to the conventional mortise fitting, a dowel hole which crosses the mortise is formed at a particularly heavy load on the frame, and the dowel hole is formed. As the dowels are inserted and fixed with an adhesive and cross-joined, the joint surface is wider and stronger than the screws and nails, and the tenon frame is made stronger. Even if backlash is caused, the durability is maintained without falling off or the tenon frame being broken.

[0007] Compared to the conventional method, it takes much time, but it is much more economical in consideration of durability. The application range of the present invention covers a wide range of joints having a framework in a structure, such as so-called legs such as chairs, benches and display stands, structures such as boxes and sheds.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In a tenon frame, a tenon 2 of one member 1 is inserted into a tenon hole 4 of the other member 3 at a position where a load is particularly applied, and the side surface of the other member 3 is A dowel hole 5 is formed across the mortise hole 2, and a dowel 6 having a spiral cut in the dowel hole 5 is inserted and fixed as an adhesive 7 through a woodworking bond. .

[Brief description of the drawings]

FIG. 1 is a perspective view implemented on a chair.

FIG. 2 is a longitudinal sectional side view taken along line AA of the above.

3 (a) is a perspective view of a main part immediately before mortise assembly, (b) is a perspective view of a completed mortise assembly state, and (c) is a cross-sectional plan view of a joined state according to the present invention.

[Explanation of symbols]

 1 One material 2 Mortice 3 The other material 4 Mortise hole 5 Dowel hole 6 Dowel 7 Adhesive

Claims (2)

[Claims] In the tenon frame, the tenon (2) of one member (1) is inserted into the tenon (4) of the other member (3), and the tenon is attached to the side surface of the other member (3). A joining structure of a tenon frame constituted by forming a dowel hole (5) crossing a mortise hole (2), and inserting and fixing a dowel (6) through the dowel hole (5) via an adhesive (7). 2. The joining structure of a tenon frame according to claim 1, wherein the dowel (6) is a spiral dowel.