Patent ID: 6039374
Filing Date: 2000-03-21
Classification: B66C

Abstract:
A suspended coupling for lifting devices for picking up thermal insulation hoods from wire coils and for placing thermal insulation hoods over wire coils, the coupling comprising a crossbeam having ends, and double arm lever pairs pivotally hinged in a mirror-inverted manner to the ends of the crossbeam, wherein each lever pair comprises an upper first lever arm pair located above the crossbeam and adapted to be connected through connecting rods to the lifting device, and a second lever arm pair located below the crossbeam and having hook-shaped ends, wherein the hook-shaped ends are adapted to be coupled to support projections arranged at an upper side of the thermal insulation hood by moving the hook-shaped ends toward each other by a pulling movement transmitted to the double lever pair by lifting the connecting rods, further comprising pull-type electromagnets and corresponding armatures, wherein the pull-type electromagnets are mounted on the crossbeam and the armatures are respectively mounted on both lever arms of the upper first lever arm pair opposite the pull-type electromagnets, wherein, in a switched-on pulling position, the electromagnets and the armatures hold the upper lever arm pair and the crossbeam in a locked position relative to each other and hold the hook-shaped ends of the lower lever arm pair out of the coupling position from the support projections.