Abstract: A rail vehicle guide and support arrangement including a bogie having independent wheels, has a crossbeam fastened to a vehicle body, so as to be perpendicular to the vertical plane containing the longitudinal axis of the vehicle, in proximity to one end of the body. Two longitudinal members each equipped with at least two wheels are mounted on an articulation member carried by the crossbeam on each side of the vertical lane, and connected to each other by a brace which is mounted on a ball joint. Each longitudinal member is provided with an articulation and each is composed of a longitudinal frame member articulated to the crossbeam and extended by a directional arm which is articulated, about a substantially vertical pivot, to the longitudinal frame member and is equipped at its free end on a wheel. Each directional arm is connected to the brace by rods forming a deformable quadrilateral which ensures correct orientation of the wheels while traversing curves.

Abstract: The articulated device for the guidance and levitation of a rail vehicle is composed of a deformable support equipped with at least four independent wheels and comprising a horizontal crossmember and two longitudinal members pivotable and tiltable relative to the crossmember. The two longitudinal members, each equipped with at least two wheels and mounted longitudinally on articulated elements, carry the crossmember on either side of the longitudinal vertical plane of the vehicle, so as to be directionally pivotable in a horizontal plane and, on the other hand, tiltable in a vertical plane in order to make it possible for the wheels carried by the longitudinal members connected to one another by means of a link and ball-mounted to follow the curves of the track and pass over the inequalities of the latter. According to the invention, the crossmember, at its ends, carries pivots for the articulation of longitudinal members, having variable relative positions.