| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint for connecting square pipes with each other with which at least one of the square pipes can be detachably connected by fixing with a machine screw and the like when assembling and structuring a shelf frame and the like by using the square pipes. SOLUTION: A square part capable of fit in an end face opening of the square pipe to connect is extended to a skirt part of a flat face mountain type or a single mountain type block fittings. A recessed part for machine screw fixing extended in a fitting direction to the square pipe is formed on an upper face of the extended square part. The square pipe joint detachably connects the square pipe to connect and the block fittings at the recessed part for machine screw fixing with the machine screw and the like. COPYRIGHT: (C)2006,JPO&NCIPI
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