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US 12,515,262 B2Granted
Hole cutting accessory for power tool
AssigneeBlack & Decker Inc.
InventorsPoinon Z. Sanogo, Matthew Christopher Green, Kenneth Hall, Joseph T. Novak, Andrew Reist
Life of this patent
Estimating the term…
Abstract
A hole cutting accessory for a power-driven tool may include an arbor that provides for quick release of an annular saw blade component of the accessory, and for quick release of a pilot drill bit component of the accessory. The quick release of the annular saw blade component from the arbor may be accomplished separately from the quick release of the pilot drill bit component from the arbor.
Claims29
A quick change hole cutting accessory, comprising:
- a hole saw including an annular wall and a base with a threaded opening;
- a pilot drill bit;
- and
- an arbor including a shaft extending along an axis, a threaded front end portion configured to be received in the threaded opening of the hole saw, an axial bore configured to receive the pilot drill bit, and a sleeve coupled to the shaft and movable among a first position, a second position, and a third position, wherein:
- in the first position of the sleeve, both the hole saw and the pilot drill bit are fixedly coupled to the arbor,
- in the second position of the sleeve, one of the hole saw or the pilot drill bit is releasable from the arbor while the other of the hole saw or the pilot drill bit remains fixedly coupled to the arbor,
- in the third position of the sleeve, the other of the hole saw or the pilot drill bit is releasable from the arbor,
- in the first position and one of the second position or the third position of the sleeve, the hole saw is not able to be unthreaded from the front end portion, and
- in the other of the second position or the third position of the sleeve, the hole saw is able to be unthreaded from the front end portion to remove the hole saw from the arbor.
6 more elements
A quick change hole cutting accessory, comprising:
- an arbor, including:
- a shaft portion extending along an axis;
- an actuator coupled to the shaft portion and moveable among a first position, a second position, and a third position;
- a first recess portion, a second recess portion, and a third recess portion defined in
- one of the shaft portion or the actuator;
- and
- a protrusion coupled to the other of the shaft portion or the actuator, a hole saw configured to be releasably coupled to the arbor;
- and
- a pilot drill bit configured to be releasably coupled to the arbor, wherein:
- in the first position of the actuator, the protrusion engages the first recess portion, and both the hole saw and the pilot drill bit are fixedly coupled to the arbor,
- in the second position of the actuator, the protrusion engages the second recess portion, and one of the hole saw or the pilot drill bit is releasable from the arbor while the other of the hole saw or the pilot drill bit remains fixedly coupled to the arbor, and
- in the third position of the actuator, the protrusion engages the third recess portion, the other of the hole saw or the pilot drill bit is releasable from the arbor.
9 more elements
A quick change hole cutting accessory, comprising:
- an arbor, including:
- a shaft portion extending along an axis, the shaft portion including a threaded front end portion configured to be received in a threaded opening in a base of a hole saw, and an axial bore configured to releasably receive a pilot drill bit;
- a sleeve coupled to the shaft portion and moveable among a first position, a second position, and a third position;
- a first recess portion, a second recess portion, and a third recess portion defined in one of the shaft portion or the sleeve;
- and
- a protrusion coupled to the other of the shaft portion or the sleeve,
- wherein:
- in the first position of the sleeve, the protrusion engages the first recess portion and both the hole saw and the pilot drill bit are fixedly coupled to the arbor,
- in the second position of the sleeve, the protrusion engages the second recess portion, and one of the hole saw or the pilot drill bit is releasable from the arbor while the other of the hole saw or the pilot drill bit remains fixedly coupled to the arbor,
- in the third position of the sleeve, the protrusion engages the third recess portion, the other of the hole saw or the pilot drill bit is releasable from the arbor,
- in the first position and one of the second position or the third position of the sleeve, the hole saw is not able to be unthreaded from the front end portion, and
- in the other of the second position or the third position of the sleeve, the hole saw is able to be unthreaded from the front end portion to remove the hole saw from the arbor.
9 more elements
Dependencies are inferred from the claim text.