| 摘要 |
A vehicle (1) which can be driven on both a road surface and on a railroad track includes a wheel chassis (1a) having a front steerable wheel axle (2a) and a rear-wheel axle (3a), both of which carry road-running wheels (2; 3), and a front and a rear rail-wheel unit (5; 7) located in front of the front wheels (2) and behind the rear wheels (3) respectively. One of the units is pivotal about a vertical axle (8) and each of the units (5; 7) includes an axle (4a; 6a) provided with a respective rail-running wheel (4; 6). The units are vertically movable, so as to enable the rail-running wheels (4; 6) to be brought into engagement with the railroad track (10). The rail-wheel unit (7) which is pivotal about a vertical axle (8) is provided with a support element (15) which can be swung to a position parallel with the rails (10a; 10b) of the track (10) and which is provided with an axle (16a) carrying a rail-running wheel (16) for engagement with the rail when driving the vehicle onto the track. The pivotal rail-wheel unit (7) provided with the support element (15) can be fixed in its position parallel with the track (10) and the longitudinal axis of the vehicle. A power unit (18) is able to engage the rail-wheel axle (6a) on the rail-wheel unit (7) carrying the support element. The rail-running wheel (16) of the support element (15) therewith coacts with the rail (10a) that lies proximal to the vehicle-mounting side of the track. |
