Single-handed lashless reversible socket wrench

Details Single-handed lashless reversible socket wrench Single-handed lashless reversible socket wrench

1992-11-09

1993-12-14

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 631, 192 44, B25B 1300

Patent

active

052692078

ABSTRACT:
A drive mechanism which would ordinarily be used as a socket wrench drive mechanism utilizes internal roller bearings confined in ramp spaces which ramp in opposite directions between the internal socket wrench-mounting rotor and an external cylindrical chamber of the drive portion, such that when rotated in one direction, one set of the roller bearings ramps into wedged position in their ramp spaces to drive the rotor, and when rotated in the other direction, the other set of bearings is held clear of the wedge position so that the wrench free-wheels. This arrangement eliminates virtually all play or lash. Reversibility of the drive is established by a thumb-operated rocker which is rotatable between left-handed drive position and right-handed drive position.

REFERENCES:
patent: 3640158 (1972-02-01), Myers
patent: 3679031 (1972-07-01), Stephens
patent: 3824625 (1974-07-01), Myers
patent: 4457416 (1984-07-01), Kutzler
patent: 4669339 (1987-06-01), Cartwright

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