Manitowoc Crane Group France

Vincent Veillerot

Bruno Roni-Damond

Simon Grimaud

Yves Alloin

Florent Mourin

François Lemire

Olivier Gevaudant

Lotfi Bouskine

Grégory Alamome

Sylvain Cuillerier

Téva Maly

Olivier Gay

Jérémy Blasiak

Pierre-Jean Chapuis

Vincent Degeorge

Bruno Roni-damond

An electric power supply management method is configured to electrically power electrical equipment of a crane, via a conversion circuit, from a primary power supply source capable of providing a primary power and from a rechargeable secondary power supply source capable of providing a secondary power. The electric power supply management method includes monitoring of a requested general power which corresponds to a power demanded by all the electrical equipment, and a monitoring of a charge level of the rechargeable secondary power supply source.

Method for managing the electric power supply of a crane from a primary source and from a rechargeable secondary source

An allocation method for allocating an available maximum power from at least one power supply source to electrical equipment of a crane, in which the electrical equipment are powered with the available maximum power, includes selecting between: a raw mode in which the available maximum power is allocated over predefined actuation equipment and on accessory equipment predefined among the electrical equipment, the actuation equipment being defined according to a configuration of the crane, and an optimized mode in which the available maximum power is allocated over the predefined actuation equipment, and also over the accessory equipment but according to the cut-off conditions of the accessory equipment, so that according to the cut-off conditions the actuation equipment are powered or not.

Method for allocating electrical power to crane equipment

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.

Method for securing a tilting jib crane for securing an angular position of a tilting jib

A tower crane includes a tower on which is pivotally mounted a boom displaceable between a lowered position and a raised position. The crane is configurable between a service configuration in which the boom is controlled in rotation and a weather vane configuration in which the boom is in the raised position and is released in rotation on the tower to allow orientation in the direction of the wind. A wind load system is mounted on the boom and is adjustable between a retracted shape in the service configuration providing a reduced surface exposed to the wind, and a deployed shape in the weather vane configuration providing an extended surface exposed to the wind. The wind load system is configured to move from the retracted shape to the deployed shape under the effect of its own weight alone (i.e., under gravity) when the boom is raised.

Luffing boom tower crane equipped with an adjustable wind load system

A trailer assembly includes first and second axles supporting first and second wheels which are coupled to first and second actuators of a steering system. The steering system includes a control circuit connected to the actuators and the control circuit includes a driving device configurable in a low speed maneuvering mode with: a synchronized sub-mode in which the actuators can be actuated in a synchronized manner to steer the wheels in a synchronized manner, and a desynchronized sub-mode in which the first and second actuators can be actuated individually and independently to steer only the first wheels or only the second wheels. A control device is connected to the driving device to: select one of the sub-modes in the low speed maneuvering mode, and select an actuation either of the first actuator or of the second actuator, in the desynchronized sub-mode.

Trailer assembly and associated self-erecting crane

A tower crane configured to fold and unfold between a working configuration and a transport configuration includes a boom hinged in rotation relative to a mast about a main axis of rotation. The tower crane includes a rear retainer fastened to a frame supporting the mast and to a stanchion. The stanchion extends the boom rearwardly of the main axis of rotation and is displaceable relative to the boom between a working position and a transport position. The tower crane further includes a lifting cable connected to a winding device exerting, on the lifting cable, a tension force applied on stanchion by a return system configured to cooperate with the lifting cable, so as to cause displacement of said stanchion from the working position to the transport position.

Growing community of inventors

Tassin la Demi Lune, France

Vincent Veillerot