Joint construction, door and window frame, and manufacturing process of the oor and window frame

Abstract

The invention discloses a joint constructure, fitting and manufacturing process of fitting. Since an inside piece of a joint block is abutted to a rib of a second opposed piece under a pressure by engaging a first opposed piece of a frame member with the joint block, the inside piece can be securely abutted at the position of the rib even when the second opposed piece and the joint block are slightly deformed, which secures a predetermined joint intensity by preventing a variation of the abutment position. Since the joint block is abutted with the rib, the pressure per a dimension can be more increased than abutting with the whole surface of the inside piece, which consequently increases the frictional force to improve the joint intensity.

Description

technical field [0001] The present invention relates to a joining structure, a door and window frame, and a method for manufacturing a door and window frame. Specifically, it relates to riveting the joining members in a state in which a pair of joining members such as frame materials are arranged to straddle a pair of joining members, and to connect the joining members to each other. Jointed joint structure, door and window frame and method of manufacturing the door and window frame. Background technique [0002] Conventionally, in window frames, partition frames, etc. constructed by combining frame materials (frame materials) into a frame, riveting (pressing) or pinning (miter joint) is used as a method of joining the ends of the frame materials. . This joining method (joining structure) is to cut the longitudinal end edges of the mutually joined frame members at a predetermined angle (for example, 45°), insert a joining member (joint block or bracket, etc.) In the state ...

AI Technical Summary

Problems solved by technology

However, since there are many deformations caused by the manufacturing process on the surface of the frame material or the joint member, for example, the contact at the engaging position is insufficient (gap is generated), and only the part that deviates greatly from the engaging position is performed. In the case of contact, etc., the surface contact between the frame materials and the joint parts is not sufficient, and friction cannot be ensured, resulting in insufficient joint strength, and there are problems such as gaps or gaps between the frame materials.

[0004] In addition, when engaging the frame material with the joining member, the inner surface of the frame material may be deflected due to the pressing force from the jig. In such a case, if the pressing force of the jig is released after the engagement, If the deflection return pressing force disappears, the surface contact between the frame material and the joint parts is insufficient, and there is a problem that it is difficult to ensure the friction force.

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