Pantograph for tilting trains

A device for collecting electric current located on a rail vehicle that tilts, wherein the rail vehicle includes a car body having a roof, a bogie beneath the car body, the bogie having a bogie frame and having a bolster above the bogie frame, the car body being supported on the bolster, and the bolster tilting around an axis extending longitudinally of the vehicle and tilting with respect to the bogie frame upon tilting of the car body;

• the device for collecting current comprising:
• a platform supported on the roof of the car body and the platform being movable transversely with respect to the longitudinal axis of the vehicle;
• a pantograph supported on the platform for movement along with the platform;
• at least one flexible connection extending between the bogie and the pantograph on the roof, the flexible connection being out of contact with the car body for isolating the pantograph transverse movement from the displacement caused by the tilting between the car body and the bogie frame and for isolating the pantograph from tilting along with the tilting of the bolster, the car body and the roof of the car body, and for moving the platform and the pantograph transversely across the roof of the car body along with tilting of the bogie frame but not along with tilting of the bogie bolster;
• and
• a motion reducing/amplifying mechanism connected between the platform and the flexible connection and being adapted for selectively reducing or increasing the transverse movement of the platform and of the pantograph thereon in response to tilting of the bogie with respect to the car body;
• and the flexible connection causing transverse motion of the platform, at a selected reduction/amplification selected by the manner of connecting the flexible connection to the reducing/amplifying mechanism at the platform.