Equipment and method for vibration damping of a lift cage

Details Equipment and method for vibration damping of a lift cage Equipment and method for vibration damping of a lift cage

2008-01-01

2008-01-01

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes control for power source of drive-means

C187S409000

Reexamination Certificate

active

07314118

ABSTRACT:
An improved equipment and method for reducing vibrations of a lift cage is intended for use in lifts of the type having a lift cage is intended for use in lifts of the type having a lift cage guided along rails in which a sensor for detecting positional changes of the lift cage and/or lift cage accelerations is coupled to a regulator which in turn controls an actuator for changing the position of the lift cage relative to the rails. An output signal developed by the regulator is limited to a maximum value for the setting signal to be sent to the actuator. A difference between the regulator output and the limited output is computed and fed to the regulator as an additional input. The regulator is constructed in such a manner that the difference fed back to the regulator remains as small as possible. This improves response of the vibration inducing equipment.

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