Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1988-12-29
1989-10-17
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360104, 360106, G11B 555, G11B 1702, G11B 2108
Patent
active
048751170
ABSTRACT:
The head positioner for a Winchester type hard disk drive digital storage system includes a main rotating metal body portion having outwardly extending, integral, head positioning arms. The magnetic heads for reading and writing information on the hard disks are mounted on springy members which are referred to as "load beams". In order to reduce vibration, and to increase the accuracy of positioning of the heads on the disks, the outwardly extending arms from the main metallic body of the head positioner unit extend outwardly from the central axis of rotation for a distance which is substantially greater than the additional outward extent of the spring load beams upon which the magnetic heads are supported. Preferably the outward extent of the rigid arms is in the order of twice the length of the springy load beams. In addition, the bearings for supporting the rotating head positioning assembly are preferably mounted directly to the metallic body of the head positioner assembly. The springy load beams which support the magnetic heads may be secured to the ends of the outwardly extending arms by the placement of preformed exterior filler metal buttons over the holes in the ends of said load beams which join with said integral arms' tapered ends whereby a means for generating a solid phase metallurgical bond generates a solid phase metallurgical bond between said buttons and said integral arms thereby securing said load beams and the associated magnetic heads to said integral arms.
REFERENCES:
patent: 3864750 (1975-02-01), Applequist
patent: 4331991 (1982-05-01), Morehouse et al.
patent: 4391035 (1983-07-01), Van de Bult
Levy Lloyd
Slezak Arnold
Micropolis Corporation
Tupper Robert S.
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