Chuck with slip protection

A chuck for use with a powered driver having a rotatable drive shaft, the chuck comprising:

• a body comprising an axial bore and a plurality of passageways that intersect with the axial bore;
• a plurality of jaws movably disposed in the plurality of passageways;
• a nut in operative communication with the plurality of jaws such that movement of the nut in a closing direction tightens the plurality of jaws and movement of the nut in an opening direction loosens the plurality of jaws;
• a sleeve in operative communication with a drive dog configured to drive the nut during manual rotation of the sleeve to cause rotation of the nut;
• and
• a biasing element configured to bias the drive dog in a direction away from an engagement edge of the nut to form a gap between the drive dog and the engagement edge, the biasing element being further configured to absorb at least a portion of an inertial force of the sleeve and also prevent direct contact between the drive dog and the engagement edge, caused by a change in rotation speed of the sleeve, that would urge the drive dog toward the engagement edge of the nut to close the gap.

A chuck for use with a powered driver having a rotatable drive shaft, the chuck comprising:

• a body comprising a nose section and a tail section, the tail section being configured to rotate with the rotatable drive shaft and the nose section comprising an axial bore, the body further comprising a plurality of passageways that intersect with the axial bore;
• a plurality of jaws movably disposed in the plurality of passageways;
• a nut rotatably mounted about the body and in operative communication with the jaws such that rotation of the nut in a closing direction moves the jaws toward an axis of the axial bore and rotation of the nut in an opening direction moves the jaws away from the axis of the axial bore;
• a sleeve rotatably mounted about the body, the sleeve comprising an inner sleeve and an outer sleeve, wherein the inner sleeve comprises a protrusion and the inner sleeve is configured to transfer rotational force applied to the outer sleeve to the nut, wherein the inner sleeve comprises a drive dog configured to engage with an engagement edge of the nut during manual rotation of the outer sleeve to cause rotation of the nut, wherein the outer sleeve comprises a tab configured to rotate toward the protrusion of the inner sleeve during manual rotation of the outer sleeve;
• and
• a biasing element configured to bias the tab in a direction away from the protrusion to form a gap between the tab and the protrusion, the biasing element being further configured to absorb at least a portion of an inertial force of the outer sleeve caused by a change in rotation speed of the outer sleeve that would urge the tab toward the protrusion and close the gap.