NET RAISING AND LOWERING WINCH

摘要

PROBLEM TO BE SOLVED: To surely prevent the idling of a wire rope by providing a roller chain for pressing the wire rope to the circumferential surface of a drum for winding a wire provided on a winch body, and laying both end sides of the roller chain through an elastic body provided on the winch body.;SOLUTION: When a wire rope 3 is unwound, the wire rope 3 is unwound from a drum 2 along guide drums 6 triangularly arranged in the state where the space between the wire ropes 3 is regulated. At this time, since a roller chain 4 with a tension imparted to both ends by an elastic body 5, which is provided on the circumference of the drum 2, presses the wire rope 3 in the state pulled in the unwinding direction, the idling of the wire rope 3 on the drum 2 is prevented. When the wire rope 3 is wound, on the other hand, since the roller chain 4 presses the wire rope 3 to the drum 2 side in the state pulled in the reverse direction, the idling of the wire rope 3 is similarly prevented.;COPYRIGHT: (C)2000,JPO