Lifting tackle for prefabricated concrete components - has sleeve with guide slots and transverse recesses accommodating coupling bosses

摘要

The tackle suspends a prefabricated concrete component from a crane, having an anchoring tube with foot, into which a connector with rope for attachment to the crane hook is inserted. The tube has a peripheral coupling portion and the connector a locking portion comprising a sleeve with guide flange for the rope, spring tongues with locking bosses, and a locking plunger with which the rope engages. The flange is separate from the sleeve, and has a coupling cylinder fitted in it. Between the spring tongues there are lengthwise guide slots (14) in the sleeve (8), widening at the top into transverse recesses (15). The cylinder has coupling bosses (16) working in the slots, and engaged in the transverse recesses by rotating the flange.