Reversible stepless wrench

Details Reversible stepless wrench Reversible stepless wrench

1996-10-31

1999-08-24

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

192 44, B25B 1300

Patent

active

059411406

ABSTRACT:
An elongated handle includes at one end a cylindrical housing. A drive element having a tool grasping member at one end, extends into the cylindrical housing. A plurality of camming surfaces on the drive element face an interior wall of the cylindrical housing. Two of the camming surfaces have a spring loaded ball associated therewith for dividing the camming surfaces into first and second regions. A rolling body cage extends into the cylindrical housing, equals dividing the space between the camming surfaces and interior wall into a plurality of compartments. Rolling bodies are inserted in the compartments, and are positionable by rotating the rolling body cage on either side of the spring loaded balls. Depending on the location of the rolling bodies with respect to the spring loaded ball, the direction of rotation of the wrench is controlled.

REFERENCES:
patent: 4015935 (1977-04-01), Andersson et al.
patent: 4051935 (1977-10-01), Nakayama
patent: 4457416 (1984-07-01), Kutzler
patent: 4669339 (1987-06-01), Cartwright
patent: 5086673 (1992-02-01), Korty

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