SAFETY ARRANGEMENT OF AN ELEVATOR

摘要

The present invention relates to a safety arrangement of an elevator, which comprises a mechanical safety device (3, 4, 11) that ensures the safety of the elevator hoistway (2) and can be moved into a use position, and which safety arrangement of an elevator comprises a detector (5) of intrusion into the elevator hoistway, which detector is fitted to receive measuring data (6) from the sensors (7) that measure the status of the entrances (9, 10) of the elevator hoistway, and also to determine intrusion into the elevator hoistway (2) from the measuring data received, and after determining an intrusion to switch the safety arrangement of the elevator into an operating mode (8) in which driving with the elevator is prevented. The aforementioned detector (5) of intrusion into the elevator hoistway is fitted to determine on the basis of the measuring data (6) received the area of intrusion (9, 10) from where intrusion into the elevator hoistway (2) has occurred, the safety arrangement comprising a service drive unit and the detector of intrusion into the elevator hoistway is fitted to delimit a safe area (27, 28) of the elevator hoistway corresponding to the determined area of intrusion (9, 10), and the safety arrangement of the elevator is fitted to permit service drive after the mechanical safety device (3, 4, 11) that is disposed in the safe area (27, 28) delimited by the detector (5) of intrusion into the elevator hoistway and that ensures the safety of the elevator hoistway is moved into the use position, and that the service drive unit is disposed in the pit of the elevator hoistway.