Rotation control apparatus

Details Rotation control apparatus Rotation control apparatus

1997-12-29

2000-12-05

Green, Mary Ann

Machine element or mechanism

Elements

Flywheel, motion smoothing-type

369263, F16F 1522

Patent

active

061551341

ABSTRACT:
A rotation control device capable of suppressing vibrations of a rotation unit produced due to changes in weight unbalances of the rotation unit. On a disc rotation control device 2, made up of a driving shaft 8 rotated along with an optical disc 90, a turntable 9, a motor rotor 10 and a magnet 15 mounted on the motor rotor 10, balancer members 6, 7 are mounted so that the balancer members 6, 7 are rotatably supported on the driving shaft 8. The disc rotation control device 2 causes rotation of the rotation unit such that a synthesized center of gravity of the rotation unit offset from the center of rotation by the unbalances of the optical disc 90 and the balancer members 6, 7 will coincide with the center of rotation.

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patent: 5694269 (1997-12-01), Lee
patent: 5721457 (1998-02-01), Sri-Jayantha et al.

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