ELEVATOR ARRANGEMENT

摘要

An apparatus in an elevator for detect­ing and stopping an uncontrolled move­ment of the car when a machine brake in­tended to keep the elevator car immov­able is on. The apparatus comprises a motion detector (1) for detecting move­ment of the car (2) and the length of the movement when the machine brake is on (10), a stopping device (3) for stop­ping an uncontrolled movement of the car, and limit and control means (4) for defining an allowed car movement and controlling the operation of the stop­ping device according to information ob­tained from the motion detector.