US 11,999,598 B2
Crane drive method for selecting and applying a preferential load curve according to the inclination of a jib structural element
Nicolas Larmonier, Lyons (FR); and François Lemire, Soucieu en Jarrest (FR)
Assigned to MANITOWOC CRANE GROUP FRANCE, Dardilly (FR)
Filed by MANITOWOC CRANE GROUP FRANCE, Dardilly (FR)
Filed on Jul. 6, 2022, as Appl. No. 17/858,973.
Claims priority of application No. 2107277 (FR), filed on Jul. 6, 2021.
Prior Publication US 2023/0008800 A1, Jan. 12, 2023
Int. Cl. B66C 23/34 (2006.01)
CPC B66C 23/342 (2013.01) 15 Claims
OG exemplary drawing
 
1. A crane drive method for selecting and applying a preferential load curve adapted to a work configuration of a crane, said crane comprising a mast supporting a luffing jib comprising at least one jib structural element, said crane drive method implementing the following steps:
an inclination measurement step implementing a measurement of an actual inclination of the jib structural element with respect to a reference axis in the work configuration, by means of an inclinometer mounted on said jib structural element;
a selection step implementing an automated selection of the preferential load curve according to the actual inclination of said jib structural element, said preferential load curve being selected from among a plurality of load curves stored in a memory and calculated beforehand for several inclinations of said jib structural element;
a drive step implementing an application of said preferential load curve for maneuvers of lifting and moving a load along the luffing jib in the work configuration of the crane.