Truck-mounted crane

Details Truck-mounted crane Truck-mounted crane

B - Operations, Transporting

66

F

214/17, 214/26

B66F 9/06 (2006.01)

Patent

CA 1177447

ABSTRACT OF THE DISCLOSURE A crane for lifting objects or materials includes a supporting base and a rotatable, upright column having a bottom end mounted on the base and an opening extending transversely therethrough. A first boom has an inner end and an outer end and is pivotally mounted at the inner end to the top end of the column. Two piston-cylinder combinations located on opposite sides of the column are used to pivot the first boom relative to the column. A second boom is pivotally mounted at one end to the outer end of the first boom and a further piston-cylinder combination can be used to pivot the second boom relative to the first boom. The second boom can be manoeuvred to a position where the second boom extends through the opening in the column for storage or transport of the crane. Preferably the second boom is extensible and includes telescoping inner and outer arms.

380068

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