| 摘要 |
Known truck assemblies are not really suitable for rapid transit systems as they are too noisy, too heavy and are unable to negotiate sharp curves. The railway truck assembly of the invention overcomes these disadvantages by having a pivot connection between its bolster and the truck frame elements which, in co-operation with direct transmission of the load to the truck frame through the opposite ends of the bolster, allows the use a relatively thinner and centrally nonbulging bolster. This railway truck assembly has a bolster 3 which is substantially bodily displaceable with the car body 2. A pair of side frames 31 and 32 are laterally restrained by means of a link 37, relative to the bolster 3 and support the opposite ends of the bolster. A pair of steering yokes 13 and 14 are longitudinally restrained relative to the car body 2, and pivoted together for radial steering of the respective wheel axes 20 connected thereto. The side frames 31 and 32 are slidably supported by the yokes 13 and 14, and are laterally restrained relative thereto by means of links 38 and 39. The bolster 3 is connected to the side frames 31 and 32 by a centreless pivot connection. <IMAGE> |
