Chuck

Details Chuck Chuck

1990-09-14

1992-04-07

Schwartz, Larry I.

Chucks or sockets

Expanding

Axially moving actuator

279121, B23B 3116

Patent

active

051021528

ABSTRACT:
A chuck for clamping workpieces or tools is provided. The chuck has a chuck body and at least two clamping jaws are radially displaceably guided in the chuck body and are operable, via wedge surfaces, by a driven chuck piston that is axially displaceable. The chuck piston is in the form of a closed, first annular piston having an outer surface that is guided all the way around in a bore of the chuck body, with a forward region of the outer piston surface being provided with tangentially extending wedge surface, the number of which corresponds to the number of clamping jaws, with these wedge surfaces cooperating with correspondingly shaped counter-surfaces of the clamping jaws. A second annular piston, which operates in an opposite direction, is disposed in the chuck body concentric to the first annular piston. The second annular piston is also provided with tangentially extending wedge surfaces that cooperate with corresponding counter-surfaces of the clamping jaws.

REFERENCES:
patent: 3926446 (1975-12-01), Rohm
patent: 3945654 (1976-03-01), McMullen

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