Patent ID: 6021719
Filing Date: 2000-02-08
Classification: B60F,B61D

Abstract:
An improved mobile track vehicle having a chassis, an operator cab, a means for supplying motive force, rail wheels and rail wheel axles, road wheels and road wheel axles, and a pair of steering road wheels mounted on said chassis for steering said mobile track vehicle during road travel, wherein the improvement comprises:(a) means for simultaneously powering said road wheel axles and said rail wheel axles;(b) an adjustable suspension including a plurality of actuators operatively mounted to said chassis for selective extension and retraction of said road wheels and said rail wheels, having a frame attachment, a plurality of bogies attached to said actuators, each of said bogies providing a conventional bearing arrangement for rotation of said driven wheels, a hydraulic suspension bladder operatively attached to the top of each of said bogies, and connected to selectively fill and evacuate, to adjust the separation of said bogie from said frame attachment thereby adjusting the height of said wheels associated with said bogie, a plurality of guide rods, operatively connected to said frame and each of said bogies for preventing lateral displacement of said bogies; and(c) means attached to said chassis for rotating said mobile track vehicle about a vertical axis from an initial position to a second position for selective alignment with either the roadway or railway.