Multi-size bit holder for a rotary power tool
OwnerNathan D. Hankinsinventor
Life of this patent
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Abstract
A bit holder for a rotary power tool includes a body rotatable about a central axis, the body including a bit aperture configured to receive a tool bit, a collar surrounding the body, the collar rotatable with respect to the body about the central axis, the collar including a first cam profile and a second cam profile, and a plurality of jaws rotatably coupled to the body such that each jaw of the plurality of jaws is rotatable about a jaw axis, each jaw of the plurality of jaws including a first cam arm configured to engage and move along the first cam profile and a second cam arm configured to engage and move along the second cam profile.
Claims20
A bit holder for a rotary power tool, the bit holder comprising:
- a body rotatable about a central axis, the body including a bit aperture configured to receive a tool bit;
- a collar surrounding the body, the collar rotatable with respect to the body about the central axis, the collar including a first cam profile and a second cam profile;
- and
- a plurality of jaws rotatably coupled to the body such that each jaw of the plurality of jaws is rotatable about a jaw axis, each jaw of the plurality of jaws including a first cam arm configured to engage and move along the first cam profile and a second cam arm configured to engage and move along the second cam profile.
A bit holder for a rotary power tool, the bit holder comprising:
- a body rotatable about a central axis, the body including a bit aperture configured to receive a tool bit;
- a plurality of jaws rotatably coupled to the body such that each jaw of the plurality of jaws is rotatable about a jaw axis parallel to the central axis, each jaw of the plurality of jaws including a cam arm;
- and
- a collar surrounding the body, the collar is rotatable with respect to the body about the central axis in a tightening direction to retain the tool bit and a release direction to permit removal of the tool bit, the collar defining a cam profile engageable with the cam arm of each jaw such that rotation of the collar in the tightening direction causes the cam profile to bear against the cam arm of each jaw to pivot the jaw about the jaw axis in the tightening direction.
A bit holder for a rotary power tool, the bit holder comprising:
- a body rotatable about a central axis, the body including a bit aperture configured to receive a tool bit;
- a plurality of jaws rotatably coupled to the body such that each jaw of the plurality of jaws is rotatable about a jaw axis parallel to the central axis;
- a collar surrounding the body, the collar is rotatable with respect to the body about the central axis in a tightening direction to retain the tool bit and a release direction to permit removal of the tool bit;
- and
- a spring biasing the collar in the tightening direction,
- wherein rotation of the collar in the tightening direction causes each jaw to pivot about the jaw axis in the tightening direction, and
- wherein rotation of the collar in the release direction causes each jaw to pivot about the jaw axis in the release direction.
Dependencies are inferred from the claim text.