The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Feb. 25, 2022
Manitowoc Crane Group France, Dardilly, FR;
Florent Mourin, Chasselay, FR;
Vincent Veillerot, Tassin la Demi Lune, FR;
François Lemire, Soucieu en Jarrest, FR;
Vincent Degeorge, Saint Etienne, FR;
MANITOWOC CRANE GROUP FRANCE, Dardilly, FR;
Abstract
A method for securing an angular position of a crane jib displaceable in lifting and in lowering by a winch integrating a motor driving a drum on which is wound a rope and secured to a platen provided with arcuate oblong locking holes, the method including measuring a speed parameter representative of an angular speed of the jib, controlling the motor to displace the jib with a limitation of the speed parameter to a first maximum value and a limitation of a motor torque to a first limit value, until reaching an angular position in which a lock is aligned with and locked into the locking hole, and controlling the motor to displace the jib in lowering with a limitation of the speed parameter to a second maximum value and a limitation of the motor torque to a second limit value, until the speed parameter is null for a predetermined time period to stop the motor.