Title: Radial-jaw chuck for lathes and like turning machines

Abstract: A radial-jaw chuck for lathes and like turning machines comprises a chuck body having a central jaw-tightening member, e.g. a sleeve, which by respective projections engages respective axially displaceable pins. The pins, in turn, are connected with chordal wedge bars by respective wedge mechanisms so that axial displacement of the pins shifts the wedge bars along the respective chords. The wedge bars, in addition, are connected with the respective chuck jaws by inclined-tooth arrangements so that the axial displacement of the tightening member causes radial displacement of the jaws.

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Inventors: Rohm, Gunter H. (7927 Sontheim, DE, US)

Application Number: 846451
Filing Date: 1977-10-28
Publication_date: 1978-12-19
Assignee:
Primary Class(es): 279/121
Other Classes:
US Patent Ref:

1594716	Aug, 1926	Forkardt	279/114.
3698729	Oct, 1972	Scharfen et al.	279/117.
3704022	Nov, 1972	Blattry et al.	279/121.
3782742	Jan, 1974	Fink et al.	279/117.

Other Refs: 2323230

Nov, 1974	DE

Primary Examiner: Sprill, Robert Louis
Assistant Examiner:
Attorney: Ross; Karl F.