Patent ID: 7837200
Filing Date: 2010-11-23
Classification: B23B,Y10S,Y10T

Abstract:
1. A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising: a generally cylindrical body having a nose section and a tail section, said tail section being configured to rotate with said drive shaft and said nose section having an axial bore formed therein; a plurality of jaws movably disposed with respect to said body and in communication with said axial bore; a nut rotatably mounted about said body and in operative communication with said jaws so that rotation of said nut in said closing direction moves said jaws toward said longitudinal axis of said axial bore and rotation of said nut in said opening direction moves said jaws away from said longitudinal axis; a first sleeve rotatably mounted to said body in operative communication with said jaws so that rotation of said sleeve in a closing direction moves said jaws toward a longitudinal center axis of said axial bore and rotation of said sleeve in an opening direction moves said jaws away from said longitudinal center axis; and a second sleeve rotatably mounted to said body and rotatably fixed to said nut, said second sleeve being selectively movable between a first position in which said second sleeve is rotatably fixed to said body and a second position in which said second sleeve is rotatable about said body; wherein said second sleeve moves in a direction transverse to said longitudinal center axis of said axial bore when moving between said first position and said second position.