| 摘要 |
<p>A joint device for structural body formed in a simple structure, facilitating the assembly and disassembly of a structural body even in instable environmental conditions, and desirably preventing a deformation due to the thermal expansion and contraction thereof from occurring, comprising a pair of joints (22a, 22b) for connecting structural bodies (20a, 20b) to each other having tubular bodies (24), a plurality of engagement projected parts (26) apart specified distances from each other in circumferential direction at the tip part of the body and projected along the center line (C) of the body, and locking block parts (28) projected in one peripheral direction at the projected end parts of the projected parts, at least one of the joints desirably further comprising a connecting direction variable mechanism (30) connected to the specified position of the corresponding structural body so that the center line of the joint body (24) can be directed in a specified direction, wherein the projected parts of one body of the pair of joints is inserted between the projected parts of the other body, one body is rotated relative to the other body, and the block parts of the projected parts of one body are locked to the block parts of the projected parts of the other body along the center lines in a direction apart from each other.</p> |
