Disc drive motor spindle hub for holding a disc and spacer stack

Details Disc drive motor spindle hub for holding a disc and spacer stack Disc drive motor spindle hub for holding a disc and spacer stack

1990-07-31

1992-02-18

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9912, 360 9703, 360 9801, 360 9808, G11B 1702

Patent

active

050899228

ABSTRACT:
A specially designed disc mounting spindle hub having a disc mounting flange protruding frm a substantially cylindrical hub portion. The disc mounting flange has a raised area about the periphery of the flange upon which a disc rests. The remainder of the discs are alternately stacked with spacer rings upon the first disc. A clamping ring is attached to the substantially cylindrical hub portion opposite the disc mounting flange and, working cooperatively with the flange, imparts a force upon the disc and spacer ring stack to hold the discs in place. The maximum force applied to the stack is in line with the raised peripheral ara that the first disc rests upon. Additionally, the force bends the disc mounting flange. However, the first disc pivots upon the raised area maintaining its parallel orientation with respect to the other discs.

REFERENCES:
patent: 4065799 (1977-12-01), Kaczeus
patent: 4429336 (1984-01-01), Berupe et al.
patent: 4471395 (1984-09-01), Beck et al.
patent: 4561035 (1985-12-01), McDorman et al.
patent: 4683505 (1987-07-01), Schmidt et al.
patent: 4847712 (1989-07-01), Crapo
patent: 4893205 (1990-01-01), Hoppe et al.
patent: 4910620 (1990-03-01), Olbirch
patent: 4965686 (1990-10-01), Young et al.

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