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US 2026/0296840 A1Published application
Crane, a vehicle with a crane, a method to operate a crane, and circuitry to determine a use of a crane
AssigneePalfinger AG
InventorsEwald MATHÉ, Mario HUFNAGL, Clemens ROSENLECHNER
Life of this patent
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Abstract
A crane comprises a boom rotatable about a pivot between a crane base and the boom, a winch arrangement mounted movable with respect to the boom, and a spring mechanism arranged between the winch arrangement and the boom. The spring mechanism is configured to compensate for the weight of the winch arrangement as the boom rotates about the pivot.
Claims20
A crane comprising:
- a boom rotatable about a pivot between a crane base and the boom;
- a winch arrangement arranged movable with respect to the boom;
- and
- a spring mechanism between the winch arrangement and the boom, wherein the spring mechanism is configured to compensate a weight of the winch arrangement based on the rotation of the boom about the pivot.
1 more element
A method of operating a crane, comprising:
- rotating a boom about a pivot between a crane base and the boom, wherein a winch arrangement is movably mounted with respect to the boom;
- and
- generating, using a spring mechanism arranged between the winch arrangement and the boom, a compensating force that varies based on the rotation of the boom about the pivot to at least partially compensate a weight of the winch arrangement.
Dependencies are inferred from the claim text.