Rotary shafts – gudgeons – housings – and flexible couplings for ro – Electrical or magnetic coupling
Patent
1988-10-26
1990-10-23
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Electrical or magnetic coupling
464 52, 464182, 464901, F16D 110
Patent
active
049648390
ABSTRACT:
A drive shaft connectable to a motor or geared motor and including a coupling arrangement attachable to tool shafts of rotating tools having, for example, heads for milling, polishing or grinding, so that easy handling of the tools is accomplished in processing small pieces of work and in beauty treatment applications while permitting easy connection to and rapid change of the tools with the coupling element. The drive shaft consists of flexible steel wire of circular profile, or of flexible steel wire with several concentric layers of wire wound around a core of flexible steel wire and having a circular profile and which is disposed in a tightly wound coiled tube made of synthetic material or steel wire. A tubular housing is attached to the coiled tube on the side away from the motor and in which a cylindrical coupling element is disposed, so that it can be rotated. A permanent magnet is secured in the coupling element whose rear end is firmly attached centrically to the forward end of the drive shaft. The coupling element has a hole of rectangular or polygonal cross-section in its front end-face running longitudinally and into which the cylindrical tool-shaft may be pressed through an opening in the housing front. The end part of the shaft corresponds in cross-section to the hole and has a smooth end-face, which, when coupled, sits flat on the smooth pole face of the magnet which forms the floor of the hole.
REFERENCES:
patent: 1039342 (1912-09-01), Wheelock
patent: 1115337 (1914-10-01), Rossetter
patent: 2596335 (1952-05-01), Kessler
patent: 2840673 (1958-06-01), Burton
patent: 3731722 (1973-05-01), Carr
patent: 4643052 (1987-02-01), Badiali
Rosy B. Versand GmbH
Stodola Daniel P.
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