| 摘要 |
In the conventional elevator, there arise problems that there is no apparatus capable of reducing only radio-frequency components according to the characteristics of the rubber isolator and dealing with vertical vibration of the entire car, although it is possible to reduce the vibration descending along the rope while passing through the rubber isolator at the lower portion of the car. The present invention relates to an apparatus for reducing vibration of an elevator capable of preventing vibration of the car by installing the dielectric fluid container whose rigidity varies according to the amount of power supply at the connection portion of the thimble rod at which the spring is elastically installed, thereby improving the level of ride comfort by relieving the passengers' unpleasant feelings due to the vibration occurred during the travelling of the elevator, which includes a thimble rod fixedly inserted through a cross head of the elevator car and counter weight, a spring installed at the inserted thimble rod, an dielectric fluid container installed between the cross head and the spring, a driving control unit for detecting the position of the car, a thimble rode control unit for controlling the amount of electric power supplied to the dielectric fluid container according to the position information obtained from the driving control unit, and a power supply unit for supplying the dielectric fluid container with electric power whose amount is controlled by the thimble rod control unit.
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