Disk clamping assembly for a low profile disk drive apparatus
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United States of America Patent
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Jun 20, 1995
Grant Date -
N/A
app pub date -
Feb 25, 1993
filing date -
Feb 29, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A disk drive apparatus in which a hard disk is fitted on a disk-fitting outer peripheral portion of a rotor hub. A gap is defined on the outer periphery of the rotor hub such that the axial height of the gap decreases radially inward. An elastic ring member, which is appropriately tensed in the circumferential direction, fits in the gap so as to exert a contracting force which serves to clamp the hard disk between itself and a disk supporting surface. The hard disk can be securely and easily fixed to the rotor hub with uniform application of the clamping pressure over the entire circumference, even when the axial height of the whole disk drive apparatus is reduced.
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