Apparatus for positioning a magnetic disk on a disk drive

Details Apparatus for positioning a magnetic disk on a disk drive Apparatus for positioning a magnetic disk on a disk drive

1985-08-19

1989-10-10

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9908, G11B 5012

Patent

active

048735957

ABSTRACT:
A magnetic disk positioning device for loading a magnetic disk onto a disk drive comprises a driving pin projecting from a turntable. The driving pin, which is positioned within a triangular hole defined within the disk drive turntable, is capable of moving in both the radial and circumferential directions. Upon loading, the driving pin initially slips into a rectangularly shaped hole provided in the disk hub. As the disk rotates further, the driving pin is clamped by a slanting side of the triangular hole and two sides of the rectangular hole. By securing the position of the driving pin, the invention enables a magnetic disk to be accurately and consistently positioned at the desired point within the disk drive and so allows more precise recording and replaying.

REFERENCES:
patent: 4517617 (1985-05-01), Tsuji et al.

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