Chucks or sockets – Radially reciprocating jaws – Wedge actuated
Patent
1979-05-18
1981-01-06
Briggs, William R.
Chucks or sockets
Radially reciprocating jaws
Wedge actuated
279110, B23B 3114
Patent
active
042432375
ABSTRACT:
A lathe chuck has a chuck body rotatable about a chuck axis and formed with a plurality of angularly spaced and radially extending inner guides receiving respective inner jaw parts and with a plurality of angularly spaced and radially extending outer guides receiving respective outer jaw parts. An operating element is engageable with the inner jaw parts for radially displacing same in the chuck body in the respective inner guides. Coupling members are axially displaceable in the inner jaw parts and are each displaceable between a coupling position engaging the respective outer jaw part and coupling same to the respective inner jaw parts for joint radial movement and a decoupling position for relative radial diaplacement of the respective jaw parts. Radially displaceable cams in each of the inner jaw parts engage the respective coupling members and are biased by respective springs into radial outer positions in which the respective coupling members are in the coupling position. When depressed radially inwardly against these springs the cams allow the respective coupling members to move into the decoupling positions. A release ring rotatable on the chuck body has surfaces that can displace all of these cams radially inwardly jointly or sequentially.
REFERENCES:
patent: 3682491 (1972-08-01), Sakazaki
Briggs William R.
Ross Karl F.
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