Universal quick change hole saw arbor
AssigneeGreenlee Textron Inc.
InventorWilliam F. Nordlin
Life of this patent
Estimating the term…
Abstract
An arbor assembly includes a shank mounted to the chuck of an electric drill, an adaptor which supports a hole saw mounted to the shank, and a sleeve for locking and unlocking the adaptor and the shank. Rotational forces from the drill are transferred to the adaptor to rotate the hole saw. The sleeve slides along the outer surface of the shank and allows a user to quickly change the hole saw. With the sleeve in the unlocked position, the adaptor easily slides out of the shank, a new adaptor is inserted into the shank, and the sleeve is then placed in the locked position prior to rotation of the drill.
Claims23
An arbor assembly for mounting a hole saw to a drill, the arbor assembly comprising:
- a shank for engagement with the drill, said shank including an O-ring recess;
- an adaptor for supporting the hole saw, said adaptor being mounted to said shank;
- an O-ring positioned within said O-ring recess, said O-ring reducing vibrations when the hole saw is rotated by the arbor assembly;
- means for locking said adaptor in engagement with said shank and for unlocking said adaptor from engagement with said shank;
- and
- said adaptor further includes a shoulder for engaging said O-ring.
An arbor assembly for mounting a hole saw to a drill, the arbor assembly comprising:
- a shank for engagement with the drill, said shank including a set screw passageway;
- a set screw positioned within said set screw passageway;
- an adapter for supporting the hole saw, said adapter being mounted to said shank;
- and
- means for locking said adapter in engagement with said shank and for unlocking said adapter from engagement with said shank, said means for locking including a sleeve, a set screw recess in said sleeve, said sleeve being maintained on said shank due to the engagement between said set screw and said set screw recess.
An arbor assembly for mounting a hole saw to a drill, the arbor assembly comprising:
- a shank for engagement with the drill, said shank including a set screw passageway;
- a set screw positioned within said set screw passageway;
- an adapter for supporting the hole saw, said adapter being mounted to said shank;
- and
- means for locking said adapter in engagement with said shank and for unlocking said adapter from engagement with said shank, wherein said means for locking includes a sleeve having a set screw access passageway for providing access to said set screw.
An adaptor for use in connection with a quick assembly for mounting a hole saw to a drill, said adaptor comprising:
- a shaft having a proximal end and a distal end,
- a pilot drill bit passageway through said shaft;
- a flange extending outwardly from said shaft adjacent said distal end;
- and
- at least two apertures extending through said flange capable of receiving hole saw mounting screws;
- and
- a shoulder extending around a circumference of said shaft.
An arbor assembly for mounting a hole saw to a drill, the arbor assembly comprising:
- a shank for engagement with the drill, said shank including an O-ring recess;
- an adaptor for supporting the hole saw, said adaptor being mounted to said shank, said adaptor includes a shaft having a proximal end and a distal end, a flange extending outwardly from said shaft adjacent said distal end, and at least two apertures through said flange capable of receiving hole saw mounting screws;
- an O-ring positioned within said O-ring recess, said O-ring reducing vibrations when the hole saw is rotated by the arbor assembly;
- means for locking said adaptor in engagement with said shank and for unlocking said adaptor from engagement with said shank;
- and
- said adaptor further includes a nose extending from said distal end of said shaft wherein the diameter of said nose is sized to extend through an aperture through the backplate of the hole saw.
An arbor assembly for mounting a hole saw to a drill, the arbor assembly comprising:
- a shank for engagement with the drill;
- an adaptor for supporting the hole saw, said adaptor slidably engaged with said shank, said adaptor further including a shaft having a proximal end and a distal end and a flange extending outwardly from said shaft adjacent said distal end, and at least two apertures provided through said flange for accepting fasteners extending through a backplate of the hole saw;
- means for locking said adaptor in engagement with said shank and for unlocking said adaptor from engagement with said shank;
- and
- a nose extending from said distal end of said shaft wherein the diameter of said nose is sized to extend through an aperture through the backplate of the hole saw.
An adaptor for use in connection with a quick change assembly for mounting a hole saw to a drill, said adaptor comprising:
- a shaft having a proximal end and distal end,
- a pilot drill bit passageway through said shaft;
- a flange extending outwardly from said shaft adjacent distal end;
- at least two aperture extending through said flange capable of receiving hole saw mounting screws;
- and
- a nose extending from said distal end of said shaft wherein the diameter of said nose is sized to extend through an aperture through the backplate of the hole saw.
An arbor assembly for mounting a hole saw to a drill, the arbor assembly comprising:
- a shank for engagement with the drill;
- a set screw mounted to said shank;
- an adapter for supporting the hole saw, said adaptor slidably engaged with said shank;
- a sleeve slidably engaged with said shank;
- said set screw engaging said sleeve;
- and
- means associated with said sleeve for locking said adapter in engagement with said shank and for unlocking said adapter from engagement with said shank.
Dependencies are inferred from the claim text.