Drill chuck, has control sleeve with actuating cam that moves pivoting pawl from engaged position in crown wheel to disengaged position when clamping cone is rotated in direction corresponding to loosening of clamping jaw

摘要

The chuck (1) has a clamping cone (3) rotated coaxially with respect to a chuck body (2), where the cone is in axial support on a jaw support (4). A locking device (6) has a crown wheel (8) coaxial with a chuck axis (7) and a control sleeve (11) of metal mounted on the support. The cone is integrated in rotation to the sleeve that is placed on an interior outer surface. The sleeve has an actuating cam to move a pivoting pawl (10) from an engaged position in the wheel to a disengaged position when the cone is rotated in a direction corresponding to the loosening of a clamping jaw (5).