Telescopic jib for vehicular cranes

Details Telescopic jib for vehicular cranes Telescopic jib for vehicular cranes

B - Operations, Transporting

60

P

B60P 3/28 (2006.01) B66C 23/70 (2006.01)

Patent

CA 2207407

A telescopic jib includes a base part, and at least one telescopic part telescoped in the base part. A shift mechanism extends and retracts each telescopic part. The base part and each telescopic part includes an upper semi-box shaped section part, and at least one of the base part and the telescopic part includes a lower section part having shell segments adjoining each other through bends in the lower section. Each shell segment has an outwardly curved shape with a different axis of rotation. The telescopic jib combines the good load application and stability properties of curved sections with the high stiffness of rectangular trussed structures and has enhanced buckling strength.

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