Patent ID: 11866308
Assignee: MANITOWOC CRANE GROUP FRANCE
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A control method for controlling configuration change operations of a self-erecting crane comprising a mast supporting a jib, the jib being a foldable jib comprising jib elements articulated together, the configuration change operations implementing kinematics of folding and unfolding the jib and causing the self-erecting crane to switch from a transport configuration in which the mast and the jib are joined together or side-by-side, into a work configuration in which the mast and the jib are deployed, or vice versa, the control method comprising:
measuring actual inclinations of one or several jib element(s) with respect to a reference axis, by means of one or several inclinometer(s) mounted on the jib element or on the several jib elements; and
controlling the configuration change operations according to the actual inclinations of the jib element or of the several jib elements during the kinematics of folding and unfolding the jib.