DEVICE FOR REMOVING HEADY CARGO LIFTING MEMBER

摘要

PROBLEM TO BE SOLVED: To rapidly lower a slider without lowering a base on the upper face of a heavy cargo.;SOLUTION: The base end of a block wire 12 is locked to a base 13 and a ring 12a fittable into a mast 21 is formed at the end of the wire. A slider 23 provided on the mast so as to be movable up and down is pushed up so that its upper end may correspond at least to the upper end of the mast 21 in non-loaded condition by a slider elastic body. A slider lowering means 28 lowers the slider 23, a locking means locks the slider 23 in the lowering condition and an unlocking means unlocks fixing of the slider 23. A sensor rod inserted into the base so as to be movable up and down is communicated with the slider 23 via a tightening material, the end of a handle 33 pivotally mounted to the base 13 is locked to the sensor rod and an operating part 33a located outwardly of the base is provided at the base end. The sensor rod is liffed during the operation of the handle 33 and then the slider 23 is lowered.;COPYRIGHT: (C)2000,JPO