Patent ID: 7658574
Filing Date: 2010-02-09
Classification: B23B,Y10S,Y10T

Abstract:
1. A chuck assembly for a rotatable spindle, comprising: a cylindrical body having a forward section, a collar and a rearward section, the forward section having a center hole formed therethrough, the collar having a plurality of angularly disposed guide channels, and the rearward section being mountable to the spindle; a plurality of jaw members slidably disposed in the guide channels, each jaw member having a threaded surface formed on an outer side thereof; a nut disposed about the collar of the body in threaded engagement with the threaded surfaces of the jaw members; a rotatable forward sleeve encasing a forward portion of the chuck assembly; a rearward sleeve encasing a rearward portion of the chuck assembly; an impactor ring disposed in the rearward sleeve and selectably engageable with the nut for adjusting position of the jaw members; and a spring biasing the impactor ring into engagement with the forward sleeve, the forward sleeve being rotatable amongst at least three positions, wherein each position enables an operation which is not available in the other two positions.