ROPE AND METHOD DETECTING DAMAGE OF THE SAME, THEREBY MEASURING THE DAMAGE THEREOF PRECISELY, DETECTING THE DAMAGE WHEN THE ROPE IS MOVED AND DETERMINING EASILY RESIDUAL STRENGTH OF THE ROPE AND A POINT IN TIME TO CHANGE THE ROPE

摘要

PURPOSE: A rope and a detecting device of the damage of the rope are provided. The detecting device is capable of measuring the damage thereof precisely, detecting the damage when the rope is moved and determining easily residual strength of the rope and a point in time to change the rope. CONSTITUTION: A rope(10) contains a bunch of wire keeping tensile load supported by each rope. The wire is characterized by giving tension and bend to the rope to break the wire partly. A detecting method of the damage of the rope comprises the steps of: generating magnetic field in the bunched wire; and measuring magnetic flux leaked from the bunched wire to detect the damage of the rope correspond to leakage of the magnetic flux. A detecting device thereof comprises: a pair of magnetic cores capable of magnetizing to generate magnetic field in the bunched wire; and a magnetic sensor measuring leaked the magnetic flux.