Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1987-06-05
1988-05-31
Weidenfeld, Gil
Chucks or sockets
With fluid-pressure actuator
Socket type
279 5, 279121, B23B 3118
Patent
active
047476095
ABSTRACT:
A chuck with two oppositely disposed clamping jaws, each of which includes a base jaw and a top jaw. The base jaws are guided in an annular chuck body that has a central clamping space in such a way as to be movable in a radial direction. Each base jaw is driven by a wedge-type member that is mounted in the chuck body in such a way as to be essentially axially movable. In order to provide such a centrally clamping two-jawed chuck with a small overall axial length and a large clamping space, each wedge-type member is driven by a piston of a pressure-medium cylinder. The stroke movements of the two pistons are automatically synchronized by a mechanical coupling element that is disposed in the chuck body parallel to the clamping axis of the two clamping jaws. The coupling element is preferably a coupling shaft. Each base jaw can be provided with a rotatably mounted intermediate jaw, but at least one of the latter being mounted in such a way as to be rotatable via a pivot drive.
REFERENCES:
patent: 1373789 (1921-04-01), Barker
patent: 2587893 (1952-03-01), Pridy et al.
patent: 2779601 (1957-01-01), Skillin
patent: 2948540 (1960-08-01), Garberding
patent: 2948541 (1960-08-01), Reich
patent: 4411440 (1983-10-01), Becker
Howell Daniel W.
Paul Forkardt GmbH & Co. KG
Weidenfeld Gil
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