Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1990-06-26
1993-02-23
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360109, 360 7702, 360 7805, 360 9801, G11B 2108, G11B 2124, G11B 2110
Patent
active
051895781
ABSTRACT:
A magnetic disk system utilizes both of voice coil motor and a piezoelectric element provided on a head supporting arm to precisely position a head to a predetermined position on a disk. The piezoelectric element is built in the distal end portion of the head supporting arm and is restricted in respect of its movement by a resilient mechanism which has low rigidity in the driving direction of the piezoelectric element and high rigidity in the other directions. The resilient mechanism is formed by pairs of doubled parallel leaf springs so arranged that each pair is disposed on either side of the piezoelectric element.
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Hirai Hiromu
Kawamoto Muneo
Mori Kenji
Naruse Jun
Nishimura Yuji
Hitachi , Ltd.
Renner Craig A.
Wolff John H.
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