Magnetic disk cartridge having a center core which engages with

Details Magnetic disk cartridge having a center core which engages with Magnetic disk cartridge having a center core which engages with

1990-03-27

1992-05-19

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 9905, 360 9904, G11B 2303, G11B 5016

Patent

active

051153661

ABSTRACT:
A magnetic disk cartridge comprises a magnetic disk, which is secured to a center core and rotates when the center core rotates, and a housing which accommodates the magnetic disk and the center core such that they can rotate. The center core is provided with an outer circumferential annular rib with which the position of the center core is adjusted with respect to the position of a drive spindle which rotates the center core, and an inner circumferential annular rib which fits onto a center shaft of the drive spindle. A third rib is located between the outer circumferential annular rib and the inner circumferential annular rib. The third rib engages with a groove in the drive spindle.

REFERENCES:
patent: 4796140 (1989-01-01), Wakabayashi et al.
patent: 4827470 (1989-05-01), Odawara et al.
patent: 4847826 (1989-07-01), Sakaguchi et al.
patent: 4864452 (1989-09-01), Thompson et al.
patent: 4896232 (1990-01-01), Sugawara

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