Resilient support for a disk drive pin in a rotating disk data s

Details Resilient support for a disk drive pin in a rotating disk data s Resilient support for a disk drive pin in a rotating disk data s

1991-11-19

1993-11-23

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 5016

Patent

active

052649768

ABSTRACT:
A disk drive for use with a flexible magnetic disk having a sheet metal hub with a central hole and an eccentric slot formed therein. The disk drive has a turntable on which the disk is to be placed for joint rotation therewith. The turntable has a spindle disposed centrally for centering engagement in the central hole in the disk, and a drive pin disposed eccentrically on the turntable for driving engagement in the eccentric slot. Erected on the free end of a lever which is pivotally mounted to the turntable, the drive pin is biased to travel substantially radially outwardly of the turntable so that the disk may be engaged by the spindle and the drive pin without looseness. Since the data storage disk when first loaded on the turntable rests slantingly thereon, with the drive pin butting endwise against the disk, until the drive pin becomes engaged in the disk slot with the rotation of the turntable, the support lever is formed to include a constricted neck portion intermediate the opposite ends thereof. The neck portion is capable of torsional deflection to permit the drive pin to tilt radially inwardly of the turntable into right angular relationship with the data storage disk resting slantingly on the turntable, whereby the drive pin is smoothly admitted into the disk slot upon rotation of the turntable.

REFERENCES:
patent: 4445157 (1984-04-01), Takahashi
patent: 4758915 (1988-07-01), Sakaguchi
patent: 4855850 (1989-08-01), Nagaoka

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