Tool driving or impacting – Automatic control of power operated means – Drive means responsive to torque or speed condition
Patent
1994-03-04
1995-10-17
Smith, Scott A.
Tool driving or impacting
Automatic control of power operated means
Drive means responsive to torque or speed condition
173 48, 173104, B25B 23159
Patent
active
054582067
ABSTRACT:
A power tool has an application mechanism (300) for connection to the output of an epicyclic gearbox provided with a torque control ring. The mechanism has a body (310) journalling a chuck spindle (302). Outside the body is a clutch control arrangement comprising balls (334,336) pressed against the torque control ring by individual springs (330) controlled by a control ring (322) threaded on the body. The mechanism includes a hammer arrangement having rotary and fixed ratchet plates (378,376) and cam ring (308) operable to engage and separate the plates by a lever (360) which projects between the springs (330).
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Bourner Michael D.
Jones Richard L.
Black & Decker Inc.
Dearing Dennis A.
Del Ponti John D.
Smith Scott A.
Yocum Charles E.
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