Mechanism in a powered hand-held rotary driver for counteracting

Details Mechanism in a powered hand-held rotary driver for counteracting Mechanism in a powered hand-held rotary driver for counteracting

1993-03-01

1994-10-11

Braun, Leslie A.

Planetary gear transmission systems or components

Differential planetary gearing

Spur gear differential

475332, 81 5731, 81 56, F16H 142

Patent

active

053542460

ABSTRACT:
A powered hand-held rotary tool adapted for preventing an externally manifested reaction torque upon the hand of an operator consists of a housing, a rotor adapted to be driven for rotation relative to the housing, and a planetary differential mechanism having a sun gear coaxial with and driven from the rotor, planetary gears, and a ring gear. The ring gear is rotatable relative to the housing. A first output gear is coaxial with the sun gear and rotatably driven by the planetary gears. An additional output gearing is rotatably supported from the housing on an axis that is laterally offset from the axis of the rotor, and is drivingly engaged by the ring gear. Rotation of the additional gearing in one direction relative to the housing is inhibited.

REFERENCES:
patent: 2228638 (1941-01-01), Mercier
patent: 2322247 (1943-06-01), Mercier
patent: 3323395 (1967-06-01), Burnett et al.
patent: 3331269 (1967-07-01), Sauter
patent: 3646834 (1972-03-01), Davis
patent: 4964315 (1990-10-01), Willis, Jr.
patent: 4976669 (1990-12-01), Jones
patent: 5009621 (1991-04-01), Bankstahl et al.
patent: 5161437 (1992-11-01), Vasutomi et al.
patent: 5238461 (1993-08-01), Gotman

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