Pneumatically self-clearing chuck

Details Pneumatically self-clearing chuck Pneumatically self-clearing chuck

1995-03-28

1996-12-03

Rachuba, M.

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

279 61, 408 56, B23B 3112

Patent

active

055801978

ABSTRACT:
The chuck is used with a drill drive unit having a spindle extending along and rotatable about an axis. The chuck has a chuck body fixed on the spindle and formed with an axially forwardly open tool recess on the axis, a plurality of angularly spaced and angled guide holes opening into the recess and having inner surfaces, and a respective grit-clearing passage opening at a respective front end into each of the guide holes axially rear-ward of the recess. Respective jaws displaceable in the guide holes have outer surfaces riding on the inner surfaces of the respective guide holes and 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.

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

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