| 摘要 |
A truck (10) for use on a railway vehicle has 3 axles, one (20,26) located at each end of the truck (10) and a third (32) located generally centrally between the other two axles (20,26). The two outboard axles (20,26) are pivotable about respective vertical axes so as to be free to move to a radial alignment when the truck (10) is travelling on curved track. The axle (32) located generally centrally between the other two axles is free to move laterally but is constrained to eliminate movement about a substantially vertical axis. Interconnecting means (74,74B) are provided so that the lateral movement of the central axle (32) is used to guide the outboard axes (20,26) to the radial alignment. |
