Motor for driving information medium

Details Motor for driving information medium Motor for driving information medium

1998-07-17

2000-12-12

LaBalle, Clayton

Electrical generator or motor structure

Dynamoelectric

Rotary

360 9908, 360 9905, H02K 714, G11B 17022

Patent

active

061603341

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 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.

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