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US 12,290,864 B2Granted
Power tool chuck
AssigneeBlack & Decker Inc.
InventorsMatthew Stanton, David P. Engvall
Life of this patent
Estimating the term…
Abstract
A chuck including a chuck body that supports a plurality of jaws. An outer sleeve is axially fixed with respect to the chuck body. A nut is coupled to the outer sleeve, and the nut is movable axially and radially relative to the chuck body. The nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and radially relative to the body.
Claims21
A chuck for a power tool comprising:
- a chuck body;
- a plurality of jaws supported by the body and moveable toward or away from one another while being constrained against axial movement relative to the chuck body;
- an outer sleeve that is axially fixed with respect to the chuck body;
- and
- a nut coupled to the outer sleeve, the nut being movable axially and rotationally relative to the chuck body upon rotation of the outer sleeve,
- wherein the nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and rotationally relative to the body and the jaws move toward or away from one another.
3 more elements
A chuck for a power tool comprising:
- a chuck body;
- a plurality of jaws supported by the body and moveable toward or away from one another;
- an outer sleeve that is axially fixed with respect to the chuck body;
- a nut coupled to the outer sleeve, the nut being movable axially and rotationally relative to the chuck body upon rotation of the outer sleeve;
- and
- a lifter received in the outer sleeve and coupled to the jaws,
- wherein when the outer sleeve rotates in a first direction, the nut rotates in the first direction and lifter pushes the jaws outward in a radial direction to move away from one another.
4 more elements
A chuck for a power tool comprising:
- a chuck body having a front end and a rear end;
- a plurality of jaws with external threads movably supported in the chuck body and configured to hold a tool bit;
- an outer sleeve received over the chuck body, the outer sleeve being axially fixed and selectively rotatable with respect to the chuck body;
- and
- a nut with internal threads received in and coupled for rotation to the outer sleeve with the internal threads threadably engaged with the external threads, the nut being movable axially and rotationally relative to the chuck body;
- wherein when the outer sleeve rotates in a first direction, the nut moves rotationally in the first direction and axially toward the rear end, causing the jaws to move toward one another, and
- wherein when the outer sleeve rotates in a second direction opposite the first direction, the nut moves rotationally in the second direction and axially toward the front end, causing the jaws to move away from one another.
4 more elements
Dependencies are inferred from the claim text.