Patent ID: 6408971
Filing Date: 2002-06-25
Classification: B62D

Abstract:
A tracked vehicle with load balancing system comprising:a tracked chassis assembly having a pair of tracks and a cab attachment rail assembly; a cab assembly slidably mounted to the cab attachment rail assembly such that the cab assembly slides between a forward cab position and a rearward cab position with respect to the tracked chassis assembly; and a cab assembly positioning assembly including a dual rod hydraulic cylinder assembly including a cylinder barrel connected to the cab assembly and two opposed piston rods; the cylinder barrel having a piston cylinder defined therein along the length thereof; each of the two opposed piston rods having a rod end connected to an opposed tracked chassis assembly end and a piston head end attached to a piston head slidably positionable within and between opposed ends of the piston cylinder of the cylinder barrel, a hydraulic pump having hydraulic outputs in connection with the dual rod hydraulic cylinder assembly through a hydraulic control valve for controlling movement of the cylinder barrel with respect to the piston head of the cylinder barrel such that the cab assembly moves forward and rearward in connection with the cylinder barrel with respect to the tracked chassis assembly in response to movement of the cylinder barrel with respect to the two opposed piston rods; the hydraulic control valve being positioned on the hydraulic cab assembly such that operation of the hydraulic control valve allows an operator positioned in the cab assembly to position the cab assembly forward and rearward on the tracked chassis assembly such that the weight of the cab assembly and any load supported by the cab assembly is positioned to provide the most balanced load on the tracks of the tracked chassis assembly to prevent sections of the tracks from bearing greater weight loads than other sections of the tracks and thereby allow the combined weight of the tracked vehicle with load balancing system to be spread over a larger earth contacting surface area of the tracks such that the tracked vehicle with load balancing system may be operated on soils with lower load bearing capacities than a substantially identical tracked vehicle without the load balancing system.