Gear cutting – milling – or planing – Milling – With cutter holder
Patent
1982-06-29
1985-03-05
Briggs, William R.
Gear cutting, milling, or planing
Milling
With cutter holder
173 13, 173 48, 279 1B, B23C 900, B23B 3122, E02D 702
Patent
active
045028249
ABSTRACT:
A tool chuck for a hammer drill has an inner sleeve and an axially slidable outer sleeve concentrically surrounding the inner sleeve. The inner sleeve has an open leading end adapted to receive a shank of the tool. The shank is clamped in the inner sleeve with a snap action in response to insertion of the shank through the open end. Torque and/or axial impact are selectively imparted to the tool chuck from a drive of the hammer drill. The tool shank is formed with a radially outwardly opening recess closed at both axial ends and shaped to receive a tool-holding element and with at least one axially extending groove. A formation is formed in the inner sleeve which is engageable with the axially extending groove for torque transmission. A ring is positioned between the outer sleeve and the inner sleeve. The ring is movably biased by a spring in axial direction and is provided with a projection engageable with the tool-holding element when the latter is moved outwardly of the recess.
REFERENCES:
patent: 3251605 (1966-05-01), Ondeck
patent: 3428327 (1969-02-01), Sindelar
patent: 4107949 (1978-08-01), Wanner et al.
patent: 4131165 (1978-12-01), Wanner et al.
patent: 4434859 (1984-03-01), Rumpp et al.
Dohse Hans-Peter
Wanner Karl
Briggs William R.
Robert & Bosch GmbH
Striker Michael J.
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