| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost connector used for an elevated working stand, etc., enabling assembling/disassembling, dispensing with a tool, and quickly and safely attached to/detached from a structural frame material by a simple operation. SOLUTION: A semu-circular curved part 22, a lock piece 23 extended vertically to its one end and projected to the tip outside, an engagement piece 29 having a bent part 26 bent outward from the tip in the other end, and a sectional extrusion section having a connecting part in an arbitrary position are cut into arbitrary length. A bolt lock groove 24 is formed in the center in the extrusion direction of the lock piece 23 and a long and corrugated bolt hole 27 extending from a position opposed to the bolt lock groove 24 is provided in the center of the engagement piece 29. The lock bolt 40 having an installation pin in its one end is inserted from the corrugated bolt hole 27 into the bolt lock groove 24. Providing a pair of fitting protrusion parts inside the lock piece 23 and the engagement piece 29 can enhance the engagement.
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