Patent ID: 6102411
Filing Date: 2000-08-15
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, said body member having a forward section and a rearward section, said rearward section being configured to mate with said driver and said forward section having an axial bore formed therein, a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore, a ledge portion defined about the outer circumference thereof, and a front face transverse to the longitudinal axis of said body;one of 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 to said body rearward of said ledge portion so as to engage said jaw threads; anda generally cylindrical sleeve having an annular open forward end, said sleeve being received over the forward section of said body and engaging said nut so that when said sleeve is rotated, said nut will be rotated therewith to operate said jaws, said forward end of said sleeve including an annular lip portion extending radially inward therefrom and at least partially covering said front transverse face of said body,wherein said sleeve includes a flexible protrusion extending axially rearward from an inner circumferential surface of said sleeve proximate said sleeve forward end, said protrusion having a tab portion disposed rearward of said ledge portion and projecting radially inward of the outer circumference of said ledge portion to prevent forward axial movement of said sleeve with respect to said body.