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.
Claims21
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 at an oblique angle relative to the central axis;
- a plurality of jaws, each of the jaws movable along a respective one of the slots;
- and
- a collar coupled to the plurality of jaws,
- wherein the collar is selectively engageable with the chuck body such that, when engaged, the plurality of jaws is movable along the plurality of slots in response to rotation of the collar.
A chuck assembly for coupling a bit shank to a rotary power tool, the chuck assembly comprising:
- a chuck body rotatable about a central axis, the chuck body including a plurality of slots;
- a plurality of jaws, each of the jaws movable along a respective one of the slots to secure a bit shank between the jaws;
- a collar at least partially surrounding the chuck body and the jaws;
- a first plurality of threads formed on the chuck body or the plurality of jaws;
- and
- a second plurality of threads formed on the collar,
- wherein the collar is rotatable about the central axis to a first orientation to engage the second plurality of threads with the first plurality of threads and to a second orientation to disengage the second plurality of threads from the first plurality of threads, and
- wherein the collar is axially movable along the chuck body without rotating the collar when the collar is in the second orientation.
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.
21-30. (canceled)
Dependencies are inferred from the claim text.