CABLE BITE DETECTOR OF MOORING WINCH

PURPOSE:To obtain a cable bite detector for detecting the cable bite and immediately taking actions to release the random winding by comparing signals from the rotating speed meter of a mooring winch and the delivery speed meter of a mooring cable with reference values for judgement. CONSTITUTION:When a mooring cable 3 is drawn out while being bitten by a mooring winch 2, it is drawn out in response to the rotation of the mooring winch 2 up to the bitten place, but the delivery is stopped near the place facing a cable length meter 12. When the mooring winch 2 tends to rotate further, if the cable tension is larger than the torque of the mooring winch 2, the mooring winch 2 is stopped; if smaller, the cable 3 is wound. During delivery of the cable 3, a judging circuit 13 compares the rotating speed of the mooring winch 2 with the reference value for judgement, and when the mooring winch 2 is stopped, a cable bite signal is generated. In addition, even when the mooring winch 2 is rotating, the delivery speed of the cable 3 is compared with the reference value for judgement to generate a cable bite signal. Actions to release the random winding can be taken via these signals, and furthermore the cable bite can be detected with a simple structure.