A method and an arrangement are provided for monitoring the safety of a counterweighted elevator. In the method, an elevator car is driven with a hoisting machine towards the top end of the elevator hoistway, contact between the counterweight and the end buffer of the elevator hoistway is determined, a reference point for the location of the elevator car is registered when detecting contact between the counterweight and the end buffer, the distance that the elevator car travels onwards from the aforementioned reference point for the location is measured, and if the distance traveled by the elevator car onwards from the aforementioned reference point exceeds a threshold value a signal indicating a risk of slackening of the traction rope is formed.
Monitoring elevator traction rope
2018-05-29
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
GREASE FOR ELEVATOR ROPE, ELEVATOR ROPE, AND TRACTION ELEVATOR
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