Running gear unit for low-floor rail vehicles

摘要

A running gear unit for low-floor rail vehicles includes a running gear frame on which individual wheels are rotatably mounted through a respective rocker and the rocker is articulatingly attached and supported by primary springs. The running gear frame is connected to a car body of the low-floor rail vehicle through two articulated rods having one end being articulatingly mounted at a distance from one another on a crossmember of the running gear frame and another end being likewise articulatingly attached to the car body. The car body is supported on the running gear frame through secondary springs being mounted in pockets near transverse ends of the crossmember. Transverse stops are disposed at a distance from one another in the crossmember for limiting transverse movement of the car body relative to the running gear unit. In order to construct the running gear unit in such a way that the floor area in the car body is at a continuous low level and the wheels of the running gear unit can be steered, the rocker is mounted on a horizontal axle disposed in the transverse direction of the running gear unit, on a bolster which is articulatingly secured about a vertical axis on the running gear frame.