Patent ID: 8449257

Claim:
A wind generator comprising: a mast extending along a longitudinal axis between a lower end and an upper end, said mast being pivotally mounted as a whole on a fixed basis through an articulation between a substantially vertical erect position and a substantially horizontal folded-down position, the articulation being positioned between the lower and upper ends of the mast, the mast comprising a lower part, situated between the articulation and the lower end and an upper part situated between the articulation and the upper end, a nacelle borne by the upper end of the mast, this nacelle comprising a rotor bearing a turbine, a counterweight pivotally mounted to the lower part of the mast, said counterweight counterweighting the nacelle and the upper part of the mast, at least one main actuator connected to the mast and adapted to make said mast pivot between the erect position and the folded-down position, wherein the wind generator comprises a control device including at least one additional actuator connecting the moving counterweight to the mast and adapted to move the counterweight so that a center of gravity of the counterweight is moved toward and away from said articulation along the longitudinal axis of the mast and wherein the control device moves the counterweight as a function of the pivoting of the mast so that said center of gravity is further away from the articulation when the mast is in the folded-down position and closer to the articulation when the mast is in the erect position.