Chucks or sockets – Socket type – Lost motion
Patent
1985-06-11
1986-12-09
Weidenfeld, Gil
Chucks or sockets
Socket type
Lost motion
173 48, 173115, 279 1K, 279 62, 408241R, B23B 3104, B25D 1708
Patent
active
046276270
ABSTRACT:
A drill chuck is secured on a drill spindle so as to be actuated thereby. The drill chuck has an axial passage through which the impact effect of a central anvil shaft is transferred to the end of the drill held in the drill chuck. The drill chuck can be connected to the drill spindle by coupling elements respectively arranged in coupling retainers of the drill spindle and/or the chuck body. The coupling retainers are axially of greater longitudinal dimension than the coupling elements, and permit axial displacement of the drill chuck. A contact ring which can not be displaced in axial direction presents an annular surface towards a further annular surface at the drill chuck body. Abutment projections can preclude axial displacement of the drill chuck on the drill spindle, and associated abutment recesses are also provided into which the abutment projections fit at least to a depth equivalent to the axial displacement movement of the drill chuck. The contact ring can be rotated to an extent that the abutment projections are aligned with the abutment recesses and can be retained therein, whereby the axial displacement of the drill chuck is allowed.
REFERENCES:
patent: 3133601 (1964-05-01), Fulop
patent: 3929343 (1975-12-01), Wanner et al.
patent: 4131165 (1978-12-01), Wanner et al.
patent: 4491444 (1985-01-01), Rumpp et al.
patent: 4502824 (1985-03-01), Dohse et al.
Bishop Steven C.
Dubno Herbert
Ross Karl F.
Weidenfeld Gil
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