Patent ID: 7243581
Filing Date: 2007-07-17
Classification: B25B,F16D

Abstract:
1. A torque limiting driver comprising: a handle; a drive shaft; an insert removably secured to said handle; means for coupling said drive shaft to said insert; a clutch assembly coupled to said drive shaft, 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; said recesses forming a housing for said rolling members, wherein a gap is located therebetween each of said rolling members and a respective curvilinear base area when said rolling members are in said override position; a tool member coupled to said clutch assembly; and means for biasing said second clutch member relative to said first clutch member.