B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
B25B 13/46 (2006.01)
Patent
CA 2075694
ABSTRACT A reversible drive mechanism for socket wrenches, having a detended selector cap thereon. The socket driving post of the wrench is fixedly attached to a triangular shaft rotat- ably contained within an internal cylindrical bearing sur- face, creating three arc-shaped spaces. The cylindrical sur- face is the inner surface of the head of the wrench handle. Each of the surfaces on the triangular shaft has tiltably mounted thereon a U-shaped fixture, which loosely contains within its arms a cylindrical roller. As the selector cap is rotated back and forth between selector positions, each U-shaped fixture tips back and forth on its respective tri- angular surface, and shafts the contained roller from one side to the other of its respective arc-shaped space. Each roller, when shifted, moves from being closely contained on one side of its arc-shaped space to being closely contained on the other side of its space and, when the wrench handle is rotated, the roller is frictionally wedged between the cylindrical surface and the shaft face, forcing the driving post and a socket mounted thereon in the desired direction.
Kent & Edgar
Williams Keith S.
LandOfFree
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