Damped disk separator

Details Damped disk separator Damped disk separator

1998-09-15

2000-05-16

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

060645474

ABSTRACT:
A disk separator for a disk assembly of a disk drive is provided herein. The disk assembly includes a plurality of storage disks which are spaced apart on a spindle by a plurality of the disk separators. As provided herein, each disk separator includes a disk spacer and a pair of disk dampers. The disk spacer is rigid and includes a first section which extends between adjacent storage disks for maintaining the storage disks accurately spaced apart on the spindle. Each disk damper is positioned between one of the storage disks and a second section of the disk spacer for dampening the level of vibration in the storage disks. The reduced vibration level decreases the level of mis-registration which occurs during operation of the disk drive and allows for the use of high rotational speed, high density, storage disks.

REFERENCES:
patent: 4764828 (1988-08-01), Gollbach
patent: 4945432 (1990-07-01), Matsudaira et al.
patent: 5422768 (1995-06-01), Roehling et al.
patent: 5436775 (1995-07-01), Ishimatsu
patent: 5590004 (1996-12-01), Boutaghou
patent: 5644451 (1997-07-01), Chan et al.
patent: 5663851 (1997-09-01), Jeong et al.
McAllister, Jeff, Disk Flutter: Causes and Potential Cures; Data Storage, May/Jun. 1997.
McAllister, Jeffrey S. , The Effect of Platter Resonances on Track Misregistration in Disk Drives; Sound and Vibration; pp. 24-28; Jan. 1996.
Huang, E. E. and Lieu, D.K., Reduction of Precision Spindle Vibration by Radial Shear-Layer Damping, Department of Mechanical Engineering, University of California, Berkeley (16 pages).

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