Chuck with locking sleeve
AssigneesApex Brands, Inc., Jacobs Chuck Manufacturing (Suzhou) Company, Ltd.
InventorsJichun Zhou, Tingwei Zeng
Life of this patent
Estimating the term…
Abstract
A chuck for use with a power driver having a rotatable drive spindle is provided. The chuck may include a sleeve comprising a sleeve tightening surface that may be configured to engage with a nut tightening surface to tighten a nut when the sleeve is rotated into a tightening position. With the sleeve disposed in a sleeve locked position, a click pawl may be engaged with a click stopping edge of one of the plurality of click teeth to inhibit rotation of the nut in a first rotational direction to loosen the nut. A lock pawl may also be engaged with a lock stopping edge of one of the plurality of lock teeth to inhibit rotation of the sleeve in a second rotational direction due to the inertia in the sleeve that would tend to further tighten the nut.
Claims20
A chuck for use with a power driver having a rotatable drive spindle, the chuck comprising:
- a plurality of jaws, each jaw including jaw threading;
- a body configured to rotate with the drive spindle, wherein the plurality of jaws are configured to rotate with the body about a center axis of the chuck, wherein the plurality of jaws are also configured to move relative to the body in an opening or closing direction;
- a nut operably coupled with the jaw threading of the jaws such that rotation of the nut relative to the body moves the jaws relative to the body in the opening or closing direction, the nut further comprising a nut tightening surface;
- a nut race operably coupled to the nut such that the nut race rotates with the nut, the nut race comprising a lock pawl and a click pawl;
- a body race operably coupled to the body such that the body race rotates with the body, the body race comprising a plurality of click teeth having click stopping edges oriented in a first rotational direction and a plurality of lock teeth having lock stopping edges oriented in a second rotational direction, the first rotational direction being opposite the second rotational direction;
- and
- a sleeve comprising a sleeve tightening surface that is configured to engage with the nut tightening surface to tighten the nut when the sleeve is rotated into a tightening position;
- wherein, with the sleeve disposed in a sleeve locked position, the click pawl is engaged with a click stopping edge of one of the plurality of click teeth to inhibit rotation of the nut in the first rotational direction to loosen the nut and the lock pawl is engaged with a lock stopping edge of one of the plurality of lock teeth to inhibit rotation of the sleeve in the second rotational direction due to rotational inertia in the sleeve that would tend to further tighten the nut.
A chuck comprising:
- a body;
- a plurality of jaws configured to move relative to the body in an opening or closing direction;
- a nut operably coupled to the plurality of jaws such that movement of the nut relative to the body moves the jaws in the opening or closing direction, the nut further comprising a tightening nut surface;
- a nut race operably coupled to the nut such that the nut race is fixed to the nut, the nut race comprising a lock pawl and a click pawl;
- a body race operably coupled to the body, the body race comprising a plurality of teeth;
- and
- a sleeve comprising a sleeve tightening surface that is configured to engage with the nut tightening surface to tighten the nut when the sleeve is rotated into a tightening position;
- wherein, with the sleeve disposed in a sleeve locked position, the click pawl is engaged with a first tooth of the plurality of teeth to inhibit rotation of the nut in a first rotational direction and the lock pawl is engaged with a second tooth of the plurality of teeth to inhibit rotation of the sleeve in a second rotational direction due to rotational inertia in the sleeve.
Dependencies are inferred from the claim text.