Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1997-03-31
1999-06-08
Klimowicz, William J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9801, G11B 3302, G11B 5012
Patent
active
059108622
ABSTRACT:
Disclosed is a magnetic disk apparatus constructed to reduce a track positional deviation of a magnetic head. This magnetic disk apparatus includes a rotary mechanism for rotating the magnetic disk and a rotary type actuator, provided with the magnetic head at its front end, which magnetic head has a write head and a read head, for moving the magnetic head in such a direction as to traverse tracks of the magnetic disk by making rotations about a rotary shaft. A distance A from the center of rotation of the rotary type actuator to the magnetic head is set equal to or larger than a distance B from the center of rotation of the rotary type actuator to the center of rotation of the magnetic disk. Even when separating a write element and a read element, the track positional deviation of the magnetic head can be reduced. This magnetic disk apparatus includes an enclosure accommodating both of a rotary mechanism and the rotary type actuator and having a base taking such a configuration that one side surface thereof is opened and a cover fitted in the base, wherein a side for separating the base and the cover is formed at a slant to a long side of the apparatus. This construction makes it possible to enhance a rigidity of the enclosure and reduce the track positional deviation of the magnetic head.
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Dunman et al., "Actuator Assembly for a Disk File", IBM Technical Disclosure Bulletin, vol. 20, No. 5, Oct. 1977, pp. 1984-1985.
Ishikawa Masato
Ogawa Yoshinori
Sasaki Yuji
Shikano Kazunori
Yoshida Mitsuaki
Fujitsu Limited
Klimowicz William J.
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