Screw gun with a feeder for a screw supply belt

Tools – Wrench – screwdriver – or driver therefor – Machine

Patent

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Details

81435, B25B 2306

Patent

active

054526302

ABSTRACT:
An automatic screw driving gun has a belt feeder mechanism (1) for advancing a screw supply belt (2) through a feeder housing (6) in response to the rotation of a screw drive shaft or blade (11, 28) . The belt feeder mechanism (1) has a feeder lever (12) coupled to the rotating screw drive blade (11, 28) through a coupling device including a rocker lever (16) and a toggle lever (18) for a stepwise advance of the belt (4) through the feeder housing perpendicularly to the screw drive shaft. A cam driven by the screw drive shaft advances the feeder lever with each blade rotation whereby the power of the drive motor is used for the belt advance thereby relieving the operator.

REFERENCES:
patent: 4062389 (1977-12-01), Lejdegard
patent: 4146071 (1979-03-01), Mueller et al.
patent: 4517863 (1985-05-01), Ishikawa
patent: 4674367 (1987-06-01), Aab et al.
patent: 5144870 (1992-09-01), Nick
patent: 5231902 (1993-08-01), Uno et al.

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