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US 12,240,738 B2Granted
Telescopic jib with swing-out mast
AssigneeTadano Demag GmbH
InventorChristian Moritz Urban
Life of this patent
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Abstract
A telescopic jib includes a main box, at least one inner box and at least one swing-out mast. The mast is arranged on the inner box such that the inner box is able to be pushed into the main box together with the mast in a swung-in or folded-in position to thereby provide a telescopic jib that more easily provides an increased load-bearing capacity. In a particular configuration such a telescopic jib is disposed on a vehicle crane having wheels, axles, a lower carriage and a superstructure, with the telescopic jib mounted to the superstructure.
Claims19
A telescoping jib comprising:
- a plurality of boxes comprising a basic box and at least one inner box;
- and
- at least one mast that is configured to be folded out into a folded-out position and to be folded in into a folded-in position;
- wherein in the folded-in position the at least one inner box together with the at least one mast is pushed into an adjacent box in a retracted position, and wherein in the folded-in position the at least one mast extends with its longitudinal direction parallel to a longitudinal direction of the at least one inner box and the at least one mast in the folded-in position and in the retracted position does not protrude beyond a cross-section of the adjacent box.
1 more element
A vehicle crane comprising:
- a plurality of axles and wheels;
- a lower carriage;
- a superstructure;
- and
- a telescoping jib mounted on the superstructure, wherein the telescoping jib comprises a plurality of boxes, and wherein the plurality of boxes comprises a basic box and at least one inner box;
- and
- at least one mast that is configured to be folded out into a folded-out position and to be folded in into a folded-in position, wherein in the folded-in position the at least one inner box together with the at least one mast is pushed into an adjacent box in a retracted position, and wherein in the folded-in position the at least one mast extends with its longitudinal direction parallel to a longitudinal direction of the at least one inner box and the at least one mast in the folded-in position and in the retracted position does not protrude beyond a cross-section of the adjacent box.
4 more elements
Dependencies are inferred from the claim text.