Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product
Patent
1995-03-28
1997-01-07
Rachuba, M.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
408240, 279 61, B23B 4500
Patent
active
055909850
ABSTRACT:
A drill has a drive unit having a front end and an output shaft projecting from the front end and centered on and rotatable about an axis, and a fan associated with the shaft for creating a moving stream of air traversing a location at the drive-unit front end. A chuck body fixed on the shaft is formed with a rear end juxtaposed with the drive-unit front end, an axially forwardly open tool recess on the axis, a plurality of angularly spaced and angled guides opening into the recess, and at least one passage extending between the chuck rear end and the recess. Respective jaws displaceable in the guides have front ends in the recess. An adjustment sleeve is rotatable about the axis on the body and interengaging formations on the sleeve and on the jaws displace the jaws radially on rotation of the sleeve about the axis. A deflector at the location directs the air stream into the passage for conducting the air stream through the recess so that any chips or the like in the recess will be entrained therefrom by the air stream.
REFERENCES:
patent: 4607855 (1986-08-01), Rohm
patent: 4627628 (1986-12-01), Rohm
patent: 4669932 (1987-06-01), Hartley
patent: 4836563 (1989-06-01), Rohm
patent: 4968191 (1990-11-01), Palm
patent: 5129467 (1992-07-01), Watanabe et al.
patent: 5172923 (1992-12-01), Nakamura
patent: 5286041 (1994-02-01), Rohm
Dubno Herbert
Gunter Horst Rohm
Rachuba M.
Tsai Henry W. H.
Wilford Andrew
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