Abstract: A device for guiding a carrier roller (3, 4, 5, 6) on a vehicle part, this roller running about a shaft (16) on a predetermined track such as a rail, comprising, integrated into the said vehicle part, such as the chassis of a rail vehicle:

Abstract: A switching device for ground-effect vehicles, the said device comprising at least three sections of guidance and support tracks for the entry and exit of the vehicles, at least one of these tracks being the vehicle entry track, the said device comprising at least one support surface able to move between at least two positions, each of the said positions corresponding to a path by which the vehicles cross the switching device, the support surfaces of the sections of guide tracks being, for each path, in continuity with the movable support surface or surfaces.