Scenery-manoeuvring apparatus
AssigneeHuchez Treuils
InventorsMathieu Leclercq, Alexandre Dechamps
Life of this patent
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Abstract
The apparatus for moving a load includes a carrier cable having a first end connected to the load, and a second end connected to a movement device, the movement device including an operating line connected to a movement carriage. An electric motor is configured to move the carriage as a function of a force exerted on the operating line.
Claims16
An apparatus for moving a load relative to a carrier structure, the apparatus comprising a carrier cable having a first end connected to the load, and a second end connected to a movement device, the apparatus wherein the movement device includes an electric motor and a carriage that is mounted to move relative to the carrier structure and that is configured to move relative to the carrier structure during rotation of the motor, in that the device includes an operating line having its two ends connected via respective attachment points to the carriage so as to form a loop around two pulleys mounted on the carrier structure, and in that the device includes a control member associated with a member for measuring movement of the attachment point relative to the carriage in order to control rotation of the electric motor as a function of that movement.
Dependencies are inferred from the claim text.