Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling facilitates relative axial motion between coupled... – Coupler includes antifriction rolling body engageable with...
Patent
1980-06-20
1984-12-04
Lazarus, Ira S.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling facilitates relative axial motion between coupled...
Coupler includes antifriction rolling body engageable with...
279 1B, 279 75, F16D 306, B23B 3106, B23B 3116
Patent
active
RE0317551
ABSTRACT:
A hammer drill has a chuck forming a tool receptacle defining a chuck axis and provided with a tool-holding element radially displaceable into a position protruding into the tool receptacle. The tool has a shank defining a tool axis receivable axially in the receptacle. This shank is formed with a radially outwardly opening recess closed at both axial ends and shaped to receive the tool-holding element, and with an axially extending groove separate from the recess and opening axially at the end of the shank. This groove has at least one flank extending substantially radially of the tool axis. A rotary-entrainment formation in the receptacle is formed with at least one side flatly engageable with the flank for maximum force transmission and minimum wear.
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Voss Klaus
Wanner Karl
Lazarus Ira S.
Robert & Bosch GmbH
Striker Michael J.
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