Apparatus for positioning a magnetic disk on a disk drive
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United States of America Patent
Stats
-
Oct 10, 1989
Grant Date -
N/A
app pub date -
Aug 19, 1985
filing date -
Aug 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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