Multi-piece hub for supporting recording disks in a hard disk dr

Details Multi-piece hub for supporting recording disks in a hard disk dr Multi-piece hub for supporting recording disks in a hard disk dr

1994-11-16

1998-02-03

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 17028

Patent

active

057151148

ABSTRACT:
A disk assembly includes a disk as a recording medium having a center hole whose center hole defines an inner cylindrical surface. The disk is provided with a first mating portion such as a chamfered end at the inner cylindrical surface, and a hub structure to be connected with the inner cylindrical surface of the recording medium. The hub structure has a plurality of divided hub members inside the center hole, the hub member being formed by dividing the hub structure fanwise by a predetermined angular pitch. The hub members are provided with a second mating portion, typically a groove, at a location opposed to the first mating portion, wherein the hub members support the disk by fitting the second mating portion into the first mating portion.

REFERENCES:
patent: 5048005 (1991-09-01), Ekhoff
patent: 5243481 (1993-09-01), Dunckley et al.
patent: 5303098 (1994-04-01), Yamamori et al.
King et al., "Spindle For Flexible Membranes", IBM Tech Disc. Bull, vol.18, No. 2, Jul. 1975 pp. 523-524.

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