Chuck assembly for a rotary power tool
AssigneeMilwaukee Electric Tool Corporation
InventorRyan Allen Dedrickson
Life of this patent
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Abstract
A chuck assembly includes a chuck body rotatable about an axis, a plurality of jaws each received within a slot of the chuck body for co-rotation with the chuck body about the axis, a wedge engageable with an outer surface of each jaw, a pusher coupled to the plurality of jaws to bias the plurality of jaws in a forward direction into engagement with the wedge, and a tightening sleeve threadably coupled to the chuck body for relative rotation with the chuck body. The tightening sleeve includes a clamping surface engageable with the wedge for inwardly displacing the plurality of jaws in a radial direction, causing the plurality of jaws to secure a tool bit received within the chuck assembly, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction.
Claims19
A chuck assembly for use with a rotary power tool, the chuck assembly comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws each received within a slot of the chuck body for co-rotation with the chuck body about the axis;
- a wedge engageable with an outer surface of each jaw;
- a pusher coupled to the plurality of jaws to bias the plurality of jaws in a forward direction into engagement with the wedge;
- and
- a tightening sleeve threadably coupled to the chuck body for relative rotation with the chuck body, the tightening sleeve including a tapered inner surface engageable with a tapered outer surface of the wedge such that the wedge slides relative to the tightening sleeve for inwardly displacing the plurality of jaws in a radial direction, causing the plurality of jaws to secure a tool bit received within the chuck assembly, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction.
A chuck assembly for use with a rotary power tool, the chuck assembly comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws each received within a slot of the chuck body for co-rotation with the chuck body about the axis;
- a wedge including a plurality of wedge portions, each wedge portion including an interior surface engageable with an outer surface of at least one of the plurality of jaws, the plurality of wedge portions interconnected by a plurality of elastomeric members;
- and
- a tightening sleeve threadably coupled to the chuck body for relative rotation with the chuck body, the tightening sleeve including a clamping surface engageable with the plurality of wedge portions for inwardly displacing the plurality of jaws in a radial direction, causing the plurality of jaws to secure a tool bit received within the chuck assembly, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction.
Dependencies are inferred from the claim text.