| 摘要 |
PROBLEM TO BE SOLVED: To provide a clamp capable of increasing working efficiency by preventing a nut threaded with a bolt installed in the clamp from coming off a screw part to making convenient an operation for tightening the nut during tightening operation. SOLUTION: One end of a tightening cover 2 is connected to one end of a clamp body 1 through a hinge shaft 3 and the connection part 4a of the bolt 4 is connected to the other end of the body through a hinge shaft 5 so that the screw part 4b of the bolt can be held in the connection groove 2b of the tightening cover and fixed with the nut 6. An idle rotating shaft part 401 extending in the longitudinal direction is formed at the tip of the screw part 4b of the bolt. A release prevention part 402 larger than the outer diameter of the screw part of the bolt and smaller than the outside dimension of the nut is formed at the tip so that the nut joined to the screw part of the bolt cannot come off the bolt. COPYRIGHT: (C)2007,JPO&INPIT
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