Patent ID: 7467576
Filing Date: 2008-12-23
Classification: B25B,F16D

Abstract:
1. A torque limiting driver comprising: a handle; a drive shaft attached to said handle; a clutch assembly coupled to said drive shaft by a pin intersecting said drive shaft and said clutch assembly; a pair of wheel members located on opposing sides of said pin, said wheel members further securing said pin to said drive shaft and said clutch assembly; said clutch assembly further comprising: a first driving clutch member having a face comprising a plurality of radially spaced flat areas and a plurality of recesses interposed between said flat areas, said recesses comprising a curvilinear base area; a second camming clutch member having a face comprising a plurality of radially spaced flat areas and a plurality of opposing downwardly sloped planar surfaces interposed between said flat areas, said planar surfaces forming an angle; said first and said second clutch members being relatively rotatable to one another; a plurality of rolling members housed between said first clutch member and said second clutch member, said rolling members being movable from an engaged position with said clutch members to an override position; a tool member coupled to said clutch assembly; and means for biasing said second clutch member relative to said first clutch member.