Abstract: An improved drive mechanism (100) adapted to be mounted on a support for controllably moving a first output shaft (16) about either or both of two orthogonal axes (T, E). The drive mechanism has a stationary lower portion adapted to be mounted on the support and having a movable upper portion mounted for movement relative to the stationary portion. The improved drive mechanism broadly includes: a first power train (10, 12, 2, 4, 14) for controllably rotating a first gear (6); a second power train (9, 11, 1, 3,13) for controllably rotating a second gear (5); and a third gear (7) connected to the first output shaft and meshing with at least one of the first and second gears. The first, second and third gears form a portion of a differential-like mechanism (18) mechanically coupling the first and second power trains to the first output shaft. The first and second power trains may be selectively operated to controllably and cooperatively move the first output shaft to a desired position relative to the support.

Abstract: An improved drive mechanism (100) adapted to be mounted on a support for controllably moving a first output shaft (16) about either or both of two orthogonal axes (T, E). The drive mechanism having a stationary lower portion adapted to be mounted on the support and having a movable upper portion mounted for movement relative to the stationary portion. The improved drive mechanism broadly includes: a first power train (10, 12, 2, 4, 14) for controllably rotating a first gear (6); a second power train (9, 11, 1, 3,13) for controllably rotating a second gear (5); and a third gear (7) connected to the first output shaft and meshing with at least one of the first and second gears. The first, second and third gears form a portion of a differential-like mechanism (18) mechanically coupling the first and second power trains to the first output shaft.

Abstract: The invention refers to a tilting mechanism for creating track curve-dependent tilt of the superstructure of rail vehicles (1), consisting of a coupling (15) with which the superstructure (2) is movably connected to a bogie (3) in such a way that the superstructure can be transferred from an upright initial position into a tilted position relative to the bogie and having a drive (31) and an transfer mechanism including a transfer mechanism by which means the superstructure can be movably transferred from its initial position into its tilted position relative to the bogie. To be able to manufacture such tilting mechanism in a more inexpensive way, the invention aims at equipping the transfer mechanism with a mechanism with a variable transmission, the transmission of the mechanism increasing with increasing inclination angle of the superstructure relative to the bogie during transfer of the superstructure from its initial position into its tilted position.