Rotary head drum with integrated yoke and vibration resistant ba

Details Rotary head drum with integrated yoke and vibration resistant ba Rotary head drum with integrated yoke and vibration resistant ba

1996-03-25

1998-03-17

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

36013023, G11B 552, G11B 2104

Patent

active

057294070

ABSTRACT:
A rotary head drum of a magnetic recording/playback apparatus having a back yoke integrated with a ring collar. The head drum includes a rotatable shaft, an upper rotary drum and a lower stationary drum which are mounted on upper and lower parts of the rotatable shaft, respectively. The back yoke integrated with the ring collar is mounted about the rotatable shaft under the lower stationary drum. The ring collar maintains a predetermined gap between a motor stator and a motor rotor. The motor stator is mounted about the rotatable shaft under the back yoke and the motor rotor is mounted on a lower surface of the ring collar. The motor housing is mounted on a lower surface of the lower stationary drum and made of a plastic material for absorbing a vibration.

REFERENCES:
patent: 4654738 (1987-03-01), Kato et al.
patent: 4890177 (1989-12-01), Katoh et al.
patent: 4939607 (1990-07-01), Saito
patent: 5021908 (1991-06-01), Morimoto et al.
patent: 5151839 (1992-09-01), Ota

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