Chuck assembly for a rotary power tool
AssigneeMilwaukee Electric Tool Corporation
InventorJonathan E. Abbott
Life of this patent
Estimating the term…
Abstract
A chuck assembly for a rotary power tool includes a chuck body rotatable about a central axis. The chuck body has a plurality of slots, each oriented at an oblique angle relative to the central axis. The chuck assembly also includes a plurality of jaws, each movable along a respective one of the slots. The chuck assembly also includes a collar coupled to the plurality of jaws. The collar is selectively engageable with the chuck body such that, when engaged, the plurality of jaws are movable along the plurality of slots in response to rotation of the collar.
Claims16
A method of securing a bit shank with a chuck assembly, the method comprising:
- retracting a plurality of jaws by sliding a collar along a chuck body in a first direction;
- inserting the bit shank between the jaws;
- engaging the jaws against first bit shank by sliding the collar along the chuck body in a second direction opposite the first direction;
- rotating the collar relative to the chuck body;
- and
- by rotating the collar, applying a clamping force to the first bit shank with the jaws.
A chuck assembly for a rotary power tool, the chuck assembly comprising:
- a chuck body rotatable about a central axis, the chuck body including a plurality of slots, each of the slots oriented perpendicular to the central axis;
- a plurality of jaws, each of the jaws movable along a respective one of the slots, and each of the jaws including a stepped outer side;
- and
- a collar coupled for sliding movement along the chuck body, the collar including a plurality of steps engageable with the stepped outer side of each of the jaws,
- wherein the collar is movable from a first position in which a first plurality of the steps is engageable with the stepped outer side of each of the jaws to secure a bit shank of a first nominal size and a second position in which a second plurality of the steps is engageable with the stepped outer side of each of the jaws to secure a bit shank of a second nominal size different than the first nominal size.
A chuck assembly for a rotary power tool, the chuck assembly comprising:
- a chuck body rotatable about a central axis, the chuck body including a plurality of slots;
- and
- a plurality of jaws, each of the jaws movable along a respective one of the slots to axially and radially secure bit shanks of only a plurality of discrete nominal sizes between the jaws.
Dependencies are inferred from the claim text.