| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting structure or a joint which enables a single square pillar manufactured by extrusion molding to be used as a large pillar or a beam by superposing or connecting it, and which enables the pillar, the beam or the like to be taken out. SOLUTION: A projection of the connecting structure is arranged at least either on the outer diameter surface of the joint or on the inner diameter surface of the inserting part of an extruded connected member. A head of the projection becomes flat when engaged, performs pressure welding and connection. Then the joint has a siamese shape which has the job of superposition which bundles a plurality of the members of the single connected member, and the job of making the single connected member a first plurality of connected members and a second plurality of connected members by connection. COPYRIGHT: (C)2005,JPO&NCIPI
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