Apparatus for tightening loosening a screw member for fastening

Tools – Wrench – screwdriver – or driver therefor – Machine

Patent

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Details

81 5736, B25B 2900

Patent

active

055157521

ABSTRACT:
A tightening/loosening apparatus comprises a displacing mechanism (170) for forcibly displacing a wrench (74) from a screw member (18) with the movement of a processing mechanism (42) due to a movement of the wrench for rotating the screw member, while engaged with each other, to the vicinity of a predetermined position.

REFERENCES:
patent: 5245895 (1993-09-01), Yoshida et al.

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