Method of preventing collision of two lift cages and corresponding lift installation

The method involves moving an elevator unit in a common shaft independent of each other. A collision protective system (20) releases a deceleration for each moving elevator car (A1,A2) by a holding brake, when effective distance between the elevator cars exceeds a critical minimum distance. An emerg...

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Bibliographic Details
Main Author KOCHER HANS
Format Patent
LanguageChinese
English
Published 30.06.2010
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The method involves moving an elevator unit in a common shaft independent of each other. A collision protective system (20) releases a deceleration for each moving elevator car (A1,A2) by a holding brake, when effective distance between the elevator cars exceeds a critical minimum distance. An emergency stop (21) determines a momentary moving position of the cars by a control system after releaseof the holding brake. The car brake assigned to the cars releases an additional deceleration of one or more elevator cars. An independent claim is also included for an elevator facility with an upperelevator car and a lower elevator car.
Bibliography:Application Number: CN20071199359