Chucks or sockets – Radially reciprocating jaws – Wedge actuated
Patent
1981-01-29
1982-10-05
Briggs, William R.
Chucks or sockets
Radially reciprocating jaws
Wedge actuated
279123, B23B 3114
Patent
active
043525008
ABSTRACT:
A chuck for lathes having a chuck body in which at least two clamping jaws which can be jointly actuated by a drive member are guided in radially displaceable manner, the jaws consisting in each case of a drive jaw part which is continuously in operative connection with the drive member and of a clamping jaw part which is guided for radial movement independently of the drive jaw part within the chuck body and can be connected in form-locked manner with the drive jaw part by a coupling piece arranged in the drive jaw part. The form-locked engagement of the coupling piece with the clamping jaw part can be eliminated via positive drive surfaces by a spring-loaded actuating member which is movable substantially radially and independently of other actuating members. In order to be able to develop the drive jaw parts lighter and nevertheless stronger and in order to assure a dependable connection between clamping jaw part and drive jaw part, the actuating member is arranged in the chuck body and connected via the positive guide surfaces with an intermediate member which is also mounted in the chuck body and is connected with the coupling piece in form-locked manner in the direction of action of the latter but in radial direction permits a free movement of the coupling piece with respect to the intermediate member.
REFERENCES:
patent: 3656773 (1972-04-01), Blattry
patent: 3765691 (1973-10-01), Saruhashi
patent: 4007943 (1977-02-01), Scharfen
patent: 4026566 (1977-05-01), Rohar
patent: 4200300 (1980-04-01), Rohar
patent: 4240645 (1980-12-01), Rohar
patent: 4243237 (1981-01-01), Rohar
Antoni Herbert
Blattry Hans
Briggs William R.
Farber Martin A.
Paul Forkardt Kommanditgesellschaft
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