Patent ID: 6070884
Filing Date: 2000-06-06
Classification: B23B,Y10S,Y10T

Abstract:
A drill chuck comprising:a chuck body rotatable about a chuck axis and formed with a plurality of axially forwardly open and angled guide passages and with a radially outwardly open groove;respective jaws slidable in the passages and each having a row of radially directed teeth and an axially backwardly directed face;a ring received in the groove and rotatable about the axis relative to the chuck, the ring being formed with a screw-thread meshing with the jaw teeth, whereby rotation of the ring in one direction moves the jaws axially forward and radially together and opposite rotation moves the jaws axially backward and radially apart; andspring means operatively engaged between the chuck body and the ring and compressible on axial backward movement of the jaws into an extreme rear position for cushioning the backward movement of the jaws into the extreme rear position.