Chucks or sockets – Radially reciprocating jaws – Jaws
Patent
1997-11-24
1998-12-01
Bishop, Steven C.
Chucks or sockets
Radially reciprocating jaws
Jaws
279153, B23B 3116
Patent
active
058427058
ABSTRACT:
A rotary chuck having a plurality of quick change jaw assemblies each including a master jaw carried by the chuck body and a top jaw releasably secured to the master jaw by a single retaining fastener having a shank including a frustoconical portion. A resilient roll pin carried by the top jaw bears upon and is compressed by the frustoconical portion. The compressed roll pin exerts a resilient biasing force which acts upon the top jaw to continuously urge an arcuate reference surface on the top jaw into coengagement with a complementary reference surface on the master jaw. A hardened locking pin carried by the jaw assembly bears against a frustoconical head on a locking fastener threadably engaged with the master jaw to prevent relaxation of the resilient biasing force provided by the roll pin when the jaws clampingly engage the I.D. of a tubular workpiece.
REFERENCES:
patent: 1372726 (1921-03-01), Sloan
patent: 3868120 (1975-02-01), Blattry et al.
patent: 4029325 (1977-06-01), Rohm
patent: 4668971 (1987-05-01), Norton et al.
patent: 4763906 (1988-08-01), Barbieux
patent: 4982970 (1991-01-01), Otani et al.
patent: 5015003 (1991-05-01), Ramunas
Boisse Fernand U.
Tabachenko Oleg
Bishop Steven C.
The Goss & DeLeeuw Machine Company
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