Hammering screwdriver with disengagable striking mechanism

Details Hammering screwdriver with disengagable striking mechanism Hammering screwdriver with disengagable striking mechanism

1999-06-16

2000-10-24

Smith, Scott A.

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

173 93, 173 935, B25D 1500

Patent

active

061352128

ABSTRACT:
A hammering screwdriver 1 for tightening and loosening screws offers the possibility of operating the rotating action alone when tightening the screws, and a rotation/hammering action when loosening the screws. This is primarily attained by the construction of the cam controller casing 2 between which and the hammering mechanism cage 6 a ball 10 is arranged. With this exclusively rotating motion, this ball 10 lies in a salient 16 below an elevation 8 on the head end 7 of the cam controller casing 2. With rotation/hammering motion, the ball 10 is moved over the track 3 to the head end 7 of the cam controller casing 7 until it reaches the elevation. Here the cam controller casing 2 moves forward in an axial direction owing to which hammering action occurs.

REFERENCES:
patent: 3610344 (1971-10-01), Schoeps et al.
patent: 3908768 (1975-09-01), Hess
patent: 4313505 (1982-02-01), Silvern
patent: 4817736 (1989-04-01), Ono
patent: 5083619 (1992-01-01), Giardino et al.
patent: 5622230 (1997-04-01), Giardino et al.
patent: 6003618 (1999-12-01), Wallace

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