Cutting by use of rotating axially moving tool – Miscellaneous – Drill guide
Patent
1997-09-15
1998-09-01
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Miscellaneous
Drill guide
81 16, 279147, 279148, 408240, B23B 3900
Patent
active
058001026
ABSTRACT:
The present invention uses a collar that fits over a nose and a locking cylinder of a chuck of the drilling machine. The collar has a cutout section to accommodate the chuck key including the key gear when it is engaged with the beveled gear of the locking cylinder. The collar has a first bore of a first diameter with is slightly larger than the outer diameter of the nose to provide a tight fit between the collar and the nose of the chuck. A fastener is used to attach the collar to the nose of the chuck. A second bore has a second diameter to fit over at least the beveled gear of the locking cylinder. The second diameter is large enough to provide a clearance so that the locking cylinder is free to rotate within the collar. Turning the chuck key about a key axis opens or closes the jaws of the chuck to grip or release a bit placed along a drill axis of the drilling machine.
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Bhargava Adesh
Flint Cort
Hall's Machining Services, Inc.
Howell Daniel W.
Reed Robert R.
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