| 摘要 |
A vehicle for operation on both road and railroad track is provided with a wheeled chassis comprising a steered front wheel axle and a rear wheel axle, both with road or rubber tire wheels. A front and a rear wheel axle are provided with rail wheels, the rear rail wheel axle being pivotable around a vertical axis relative to the wheel chassis. The rail wheel axles are vertically displaceable to be moved into engagement with the railroad track during the lifting of adjacent rubber tire wheels out of engagement with the ground. The rear rail wheel axle is located behind the rear wheel axle for road or rubber tire wheels of the vehicle and is turnable at least 180 DEG around the vertical axis. Preferably two parallel rear rail wheel axles are mounted on a bogie, which is turnable or rotatory relative to the wheeled chassis. The bogie also incorporates a drive unit comprising a motor and a gear and is by means of a link system including a hydraulic cylinder-piston unit permanently secured to the rear part of the vehicle.
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