摘要 |
PROBLEM TO BE SOLVED: To dissolve defectiveness such as the generation of a discrepancy in the joint face direction between orthogonal aluminum shapes when jointed or the formation of a clearance without being jointed unless the cut ends of the aluminum shapes are accurately formed at 45 deg. in the case of jointing the orthogonal aluminum shapes conventionally with a plate such as a corner fitting plate as a guide. SOLUTION: In the case of opposing aluminum shapes cut at 45 deg. to each other and jointing them to constitute a door frame or a sash window frame, the mutually jointed part of the aluminum shapes respetively cut with the inclination of 45 deg. and jointed to constitute orthogonal aluminum shapes is interposingly mounted with a joint connecting body 2 provided with orthogonal fitting protrusions 2a, 2d and an abutting flange part 2b abutting at the joint part of the orthogonal aluminum shapes.
|