Chuck For Rotary Power Tool
OwnerDavid Charles Campbell, Marco Alessandro Mattucciinventors
Life of this patent
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Abstract
A chuck for a power tool having a rotatable drive shaft. The chuck includes a chuck body and an inner sleeve defining a cavity into which the chuck body is rotatably received. An outer sleeve is disposed concentrically around the inner sleeve, the outer sleeve being non-rotatably but axially slidably coupled to the inner sleeve. A cover plate may be provided non-rotatably coupled to the chuck body. A locking cup may be non-rotatably coupled to the power tool and disposed adjacent to the chuck. At least one locking element may be coupled to the cover plate. The locking element is biased to prevent rotational movement in at least one rotational direction between the cover plate and the locking cup, or between the cover plate and the outer sleeve.
Claims20
A chuck for a power tool having a rotatable drive shaft, comprising:
- a chuck body;
- a plurality of jaws slidably mounted to the chuck body;
- an inner sleeve defining a cavity into which the chuck body is rotatably received;
- and
- an outer sleeve disposed concentrically around the inner sleeve, the outer sleeve being non-rotatably but axially slidably coupled to the inner sleeve.
A chuck for a power tool having a rotatable drive shaft, the chuck comprising:
- a chuck body coupled to the drive shaft and rotatable about an axis;
- an extendable sleeve assembly including:
- an inner sleeve defining a cavity into which the chuck body is rotatably received;
- and
- an outer sleeve disposed concentrically around the inner sleeve, the outer sleeve being non-rotatably but axially slidably coupled to the inner sleeve;
- a cover plate non-rotatably coupled to the chuck body;
- a locking cup non-rotatably coupled to the power tool and disposed adjacent to the chuck;
- and
- at least one pawl coupled to the cover plate, the at least one pawl being outwardly biased and extending a radial distance past an outer diameter of the inner sleeve and adapted to contact an interior surface of the locking cup, restricting rotational movement between the cover plate and the locking cup in at least one rotational direction.
A rotary power tool, comprising:
- a housing;
- a motor;
- a rotatable output spindle;
- a chuck assembly comprising a chuck body coupled to the output spindle and an extendable chuck sleeve including:
- an inner sleeve defining a cavity into which the chuck body is rotatably received;
- an outer sleeve disposed concentrically around the inner sleeve, the outer sleeve being non-rotatably but axially slidably coupled to the inner sleeve;
- and
- a cover plate non-rotatably coupled to the chuck body;
- a locking cup non-rotatably coupled to the housing and disposed adjacent to the chuck assembly;
- and
- a controller interrupting power supplied to the motor when the chuck body is non-rotatably coupled to the locking cup.
Dependencies are inferred from the claim text.