Disk drive motor having a drive pin assembly which facilitates s

Details Disk drive motor having a drive pin assembly which facilitates s Disk drive motor having a drive pin assembly which facilitates s

1993-05-06

1998-10-20

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

369271, G11B 17022

Patent

active

058255869

ABSTRACT:
In a thin type flexible disk drive motor, in order to improve undesirable jittering of rotation, an inertia ring of larger diameter than that of the rotor frame is fixed immediately under the rotor. The inertia ring consists of a short cylinder part of the larger diameter to be fixed under the rotor frame and a flange part of the diameter not smaller than that of a FG (frequency generation) magnet part. The disk drive motor also has a drive pin engaging assembly that allows a drive pin to be secured within a hub of the flexible disk while stabilizing the drive pin and after disk chucking.

REFERENCES:
patent: 3714483 (1973-01-01), Nurnberg et al.
patent: 4667257 (1987-05-01), Chan
patent: 4669008 (1987-05-01), Ichihara
patent: 5151836 (1992-09-01), Ichihara
patent: 5243242 (1993-09-01), Cap et al.
patent: 5245234 (1993-09-01), Okada et al.
patent: 5254895 (1993-10-01), Koizumi
patent: 5264978 (1993-11-01), Sakaguchi
patent: 5311383 (1994-05-01), Yokouchi

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