Magnetic disk apparatus

Details Magnetic disk apparatus Magnetic disk apparatus

1996-11-08

1997-09-30

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

056731590

ABSTRACT:
Disclosed is a magnetic disk apparatus having a large internal accommodation space. This magnetic disk apparatus comprises a case defining accommodation space inside, magnetic disks disposed in the accommodation space, a spindle motor, magnetic heads and a rotary actuator. The case includes a cover having a first flat portion and a first upright portion standing upright on the first flat portion at a peripheral portion thereof, and a base having a second flat portion and a second upright portion standing upright on the second flat portion at a peripheral portion thereof. This design can ensure a sufficient strength even if the case is made thin, thus allowing the internal accommodation space to be increased. The magnetic disk apparatus also has a printed circuit board, which is provided at the case and has a control circuit mounted thereon for controlling the magnetic heads. The printed circuit board supplies a source voltage to the case. Accordingly, the magnetic disks and the magnetic heads can be kept at the same potential via the case.

REFERENCES:
patent: 4899237 (1990-02-01), Tochiyama et al.
patent: 5142425 (1992-08-01), Gailbreath, Jr. et al.

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