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    • 32. 发明授权
    • Apparatus for detecting a position of a cage in a hydraulic elevator
    • 用于检测液压升降机中的轿厢的位置的装置
    • US4756389A
    • 1988-07-12
    • US78998
    • 1987-07-29
    • Kazuhiro SakataYoshio SakaiTsutomu SanoYoichi Ono
    • Kazuhiro SakataYoshio SakaiTsutomu SanoYoichi Ono
    • B66B3/02B66B1/04B66B5/02
    • B66B1/24B66B5/028Y02B50/146Y02B50/148
    • In a cage position detector for a hydraulic elevator, there is provided a detector for measuring the time duration of the power failure, when the power fails. An amount of sinkage of a cage during the power failure is obtained by the time duration of the power failure and an average sinkage amount per unit time provide in advance. A cage position, which has been detected just before the power failure, is corrected by the above obtained amount of sinkage of the cage. A cage position, from which the elevator is to reopen a normal operation for service after the recovery of power, is specified by the corrected cage position.According to the present invention, even though the cage sinks during the long power failure, it is prevented to lose the true present position of the cage, from which the elevator is to reopen the normal operation after the recovery of power.
    • 在液压升降机的轿厢位置检测器中,当电源发生故障时,设置有用于测量断电持续时间的检测器。 电力故障期间笼子的下沉量通过电力故障的持续时间和每单位时间的平均下沉量提前提供。 在电源故障之前检测到的保持架位置通过上述获得的笼的下沉量来校正。 通过校正的轿厢位置指定电梯在电源恢复后重新打开正常操作以进行维修的轿厢位置。 根据本发明,即使在长时间停电期间保持架下沉,也可以防止在恢复电力之后电梯重新打开正常操作的轿厢的真实的当前位置。