| 摘要 |
PROBLEM TO BE SOLVED: To provide a bolt tightener which inserts an insertion member thereof into two workpieces while checking the tip of the insertion member, and eliminates a fear of deviation of the second workpiece from the first workpiece. SOLUTION: The bolt tightener is formed of a grip member 11 which has a rotation shaft 13 penetrated therein in a manner relatively rotatable with respect to the grip member, a rod member 16, an arm member 17, and the insertion member 18. COPYRIGHT: (C)2005,JPO&NCIPI
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