Patent ID: 6435521
Filing Date: 2002-08-20
Classification: B23B,Y10S,Y10T

Abstract:
A chuck for use with a manual or powered driver having a housing and a rotatable drive shaft extending therefrom, said chuck comprising:a generally cylindrical body having a nose section and a tail section configured to rotate with said drive shaft, said nose section having an axial bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore; a plurality of jaws slidably positioned in each of said angularly disposed passageways, each of said jaws having a jaw face formed on one side thereof and threads formed on the opposite side thereof; a nut rotatably mounted on said body in engagement with said threads on said jaws so that rotation of said nut moves said jaws axially within said passageways; a sleeve disposed about said body, wherein said sleeve is rotationally held to said housing; and a clutch disposed operatively between said nut and said sleeve, wherein said clutch, in a first position with respect to said sleeve and said nut, rotationally holds said nut with respect to said sleeve, and wherein said clutch, in a second position with respect to said sleeve and said nut, rotationally disengages said nut and said sleeve.