| 摘要 |
PROBLEM TO BE SOLVED: To prevent an excessive feed and a reverse return of a coupling screw and to improve reliability, operability, and productivity of a coupling screw driver of this kind. SOLUTION: A slide member 36 energized through a spring 37 is pushed in a casing 20. A sprocket 35 to brace a coupling screw band 3 is rotated through operation of the feed claw 31 of a feed part 30, and the screw 4 of the coupling screw band 3 is fed to a given position. When a feed is completed, the sprocket 35 is fixed by the excessive feed preventing claw 31a of the feed claw 31, and the excessive feed and the reverse return of the coupling screw are prevented from occurring.
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