Patent ID: 6536781
Filing Date: 2003-03-25
Classification: B23B,Y10S,Y10T

Abstract:
A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:a generally cylindrical body member having a nose section having an axial bore formed therein; a tail section being configured to rotate with the drive shaft of the driver; and an integrally formed thrust ring intermediate said tail section and said nose section, said thrust ring containing a plurality of bores equiangularly disposed therein; a plurality of jaws disposed radial reciprocally within said body in communication with said nose section axial bore, each of said jaws having a jaw face formed on one side thereof for engagement with a tool shaft and threads formed on the opposite side thereof; a nut disposed on said body proximate a front face of said thrust ring and in driving engagement with said jaws so that rotation of said nut with respect to said body drives said jaws into and out of said nose section axial bore; a bearing, said bearing disposed between said thrust ring and said nut, said bearing in engagement with said front face of said thrust ring; a nut retainer member axially fixed on said body for preventing movement of said nut toward said nose section of said body member, said nut retainer member including a cylindrical portion having a first diameter greater than the diameter of said nose section; a generally cylindrical first sleeve received over the forward section of said body and rotationally locked to said nut so rotation of said first sleeve causes said jaws to move towards or away from said nose section axial bore depending on the direction of rotation of said first sleeve; and a rust resistant nose piece secured to said nose section of said body, said nose piece axially locking said first sleeve to said body.