Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1989-08-28
1991-08-06
Severin, David J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9904, 360106, G11B 1702
Patent
active
050382403
ABSTRACT:
An apparatus for driving a disk-type recording medium includes a base plate including a magnetic material, a spindle mechanism, formed on the base plate, for rotating the recording medium, and a controller for controlling the spindle mechanism. An insulating film is formed on the base plate, and an electric wiring pattern is formed on the insulating film. The spindle mechanism includes stator coils magnets, a rotor, a bearing, and a spindle shaft. The stator coils and the bearing are fixed on the base plate, the magnets are fixed on the rotor, the rotor is fixed on the spindle shaft, the spindle shaft is supported by the bearing, and the stator coils are connected to the writing pattern. Parts of the controller are mounted on the base plate and connected to the wiring pattern. With this arrangement, the entire apparatus can be made thin, mounting positional precision of the respective parts can be improved, workability is improved, and therefore a manufacturing cost can be reduced.
REFERENCES:
patent: 4669009 (1987-05-01), Naoi et al.
patent: 4873596 (1089-10-01), Harada et al.
Nikkei Mechanical 1988 6 27.
Kabushiki Kaisha Toshiba
Severin David J.
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