Linear motor device having vibration reduction unit

Details Linear motor device having vibration reduction unit Linear motor device having vibration reduction unit

1991-11-27

1993-07-20

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

355236, H02K 4100, G03G 1528

Patent

active

052296709

ABSTRACT:
An improved linear motor device is disclosed having a vibration reduction unit. The linear motor device can be applied to a copying machine. As a magnetic field forming device receives reaction force and is moved, in the opposite direction to the movement of movable members, vibration is not transmitted to a base frame. The magnetic field forming device is carried to a most suitable position for absorbing the vibration by a driving device employing a pulse motor. A velocity reduction ratio in a velocity reduction mechanism of the driving device is set to be different from a velocity reduction ratio under an ideal condition in which frictional force is neglected. As a result, the magnet field forming device can be driven by a smaller pulse motor.

REFERENCES:
patent: 4516231 (1985-05-01), Michaelis
IBM Technical Disclosure Bulletin, Balanced Force Voice Coil Actuator, V15 No. 3 Aug. 1972 by N. K. Fraser.

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