Heavy-load lifting system

Details Heavy-load lifting system Heavy-load lifting system

B - Operations, Transporting

66

C

294/15

B66C 1/42 (2006.01) B66C 1/66 (2006.01)

Patent

CA 2038048

ABSTRACT OF THE DISCLOSURE To lift a heavy load, the load must be coupled to a lifting member, such as a lifting rail. In accordance with the invention, the coupling is formed by a holder projection (4) with an essentially mushroom-shaped head (10) extending upwardly from the load, for combination and association with a gripper element (5) extending downwardly from the transport member or rail, positioned to fit over the mushroom-shaped head. The gripper element includes releasable locking elements. The gripper element is essentially bell-shaped, with radial bores through which balls can pass, to fit under the enlarged,essentially mushroom-shaped head (10) and thereby lock the bell-shaped gripper element and the holder projection together; for unlocking, a sleeve, which holds the balls in position,is shifted to permit the balls to enter into a recess (9a) into a sleeve, and permit release of the gripper element from the holder projection. Eight balls, uniformly circumferentially positioned, can lift a load of 20 tons, for example.

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