Device for magnetically guiding movement of a moving body such a

Details Device for magnetically guiding movement of a moving body such a Device for magnetically guiding movement of a moving body such a

1991-07-08

1992-03-31

Richardson, Robert L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

369251, 369255, 310 905, G11B 700

Patent

active

051013983

ABSTRACT:
An optical information recording-reproducing apparatus includes an optical head unit, a holding device, a moving device and a guide shaft. The optical head unit effects recording and/or reproduction of information on an optical information recording medium. The holding device holds the optical information recording medium. The holding device includes a guide portion and a magnetic field producing device provided near the lower portion thereof. The moving device moves the holding device relative to the optical head unit. The guide shaft, formed of a magnetic material, guides the holding device for movement in a predetermined direction.

REFERENCES:
patent: 3626113 (1971-12-01), Jones et al.
patent: 3771797 (1973-11-01), Braun
patent: 4455641 (1984-06-01), Sliski
patent: 4926082 (1990-05-01), Barnes

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