Method for operating a crane, and crane
AssigneeTADANO FAUN GmbH
InventorsDavid Keilhauer, Tobias Ebinger, Dennis Skudlarek
Life of this patent
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Abstract
A crane, in particular a mobile crane, includes a crane jib which can be moved about a substantially horizontal luffing axis, and a tensioning device for the crane jib. The tensioning device includes two pendants which run from the jib tip to the jib base of the crane jib and tensioning posts each tensioning a respective one of the pendants relative to the crane jib in a triangular configuration. In order to operate the crane, a luffing angle of the crane jib about the luffing axis is measured or recorded, and a spread angle between the tensioning posts while the crane jib is being used is modified depending on the luffing angle.
Claims10
A method for operating a crane or a mobile crane, the method comprising:
- providing a crane jib being movable about a substantially horizontal luffing axis, and a crane jib tensioning device including two pendants running from a jib tip to a jib base of the crane jib and tensioning posts each tensioning a respective one of the pendants relative to the crane jib in a triangular configuration;
- recording a luffing angle of the crane jib about the luffing axis;
- and
- modifying a spread angle between the tensioning posts while using the crane jib in dependence on the luffing angle.
A crane or mobile crane, comprising:
- a crane jib being movable about a substantially horizontal luffing axis, said crane jib having a jib tip and a jib base;
- a tensioning device for said crane jib, said tensioning device having two pendants running from said jib tip to said jib base and tensioning posts each tensioning a respective one of said pendants relative to said crane jib in a triangular configuration;
- and
- a controller configured to detect a luffing angle of said crane jib about said luffing axis and to modify a spread angle between said tensioning posts in dependence on said luffing angle during use of said crane jib.
Dependencies are inferred from the claim text.