Patent ID: 7530576
Filing Date: 2009-05-12
Classification: B23B,Y10S,Y10T

Abstract:
1. A hand actuable 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 having an axial bore formed therein to mate with said drive shaft of said driver and said forward 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 jaw engaging mechanism rotatably mounted relative said body so as to engage said jaw threads; a hand actuable sleeve member received over at least a portion of said body, said sleeve member being in driving engagement with said jaw engaging mechanism; and a tightening torque indicator having a flexible tooth non-rotatably disposed on said jaw engaging mechanism and a rib extending inwardly from an inner surface of said sleeve member, wherein said tightening torque indicator prevents the application of additional torque to said jaw engaging mechanism when a predetermined tightness of the jaws about the shank of a tool received therein has been reached, and wherein said flexible tooth deflects once said predetermined tightness is reached such the said sleeve member is rotatable with respect to said jaw engaging mechanism in a closing direction.