Fixed hard disk drive having a removable integrated disc stack s

Details Fixed hard disk drive having a removable integrated disc stack s Fixed hard disk drive having a removable integrated disc stack s

1992-06-04

1994-07-19

Vrablik, John J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 5012

Patent

active

053314883

ABSTRACT:
A hard disk drive, having a removable hard disk stack or assembly in which one or more hard disks are bonded by a compliant bonding agent to a circular hub. Bonding of the hard disk(s) to the hub is the sole support of the hard disks. The circular hub has a center section which is secured by screw threaded attachment to a rotatable member of a motor for rotation at constant speed. The hub center section is of sufficient strength not to deflect in the presence of securing forces. The integrated hard disk(s) and hub provide a hard disk assembly or hard disk stack which, when the hub is attached to the rotatable member, functions as a fixed hard disk assembly providing a fixed, hard disk drive function, while affording ease of removal of the integrated, hard disk assembly for replacement or repair. The hard disk assembly is ideally suited for application in small form factor hard disk drives, less than the 31/2 inch form factor, for example, in the one to two inch form factor range.

REFERENCES:
patent: 3587074 (1971-06-01), Angle et al.
patent: 4337491 (1982-06-01), Hasler et al.
patent: 4445157 (1984-04-01), Takahashi
patent: 4616278 (1986-10-01), Yamaguchi et al.
patent: 4661875 (1987-04-01), Kinjo
patent: 4847712 (1989-07-01), Crapo
patent: 4945432 (1990-07-01), Matsudaira et al.
patent: 5031062 (1991-07-01), Wood et al.

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