Damage monitoring device for an elevator wire rope and damage monitoring method of the elevator wire rope

摘要

To provide a damage monitoring method and apparatus for monitoring damage contribute elevator wire rope effectively to the improvement of the safety of the elevator. The safety rod 33, which is disposed so as to extend in the arrangement direction of the wire rope 7 is attached to a distance in the direction of extension of the safety bar 33, the vibration detection sensor 45 having a piezoelectric element 43. By using this vibration detection sensors 45 and 46, by the detection of acoustic waves due to contact with the safety rod 33 and wire 41 breaks of the wire rope 7, to discover the damage of the wire rope 7.