Linear motor device having vibration reduction unit

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

1992-09-30

1993-08-24

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355 61, G03G 1504, G03B 2750, H02K 4102

Patent

active

052393402

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
patent: 4952011 (1990-08-01), Ishii et al.
patent: 5172160 (1992-12-01), Van Eijk et al.

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