GB1339921A - Railway vehicle suspensions - Google Patents

Abstract

1339921 Railway vehicle undercarriages BRITISH RAILWAYS BOARD 12 April 1972 [26 April 1971] 11399/71 Heading B7L A suspension arrangement for supporting an end of a railway vehicle comprises a bolster 4 suspended from a bogie frame 3 by swing links 5, a structure 7 which is arranged to transmit the weight of the vehicle body 8 to the bolster 4, the structure 7 being hinged to the bolster 4 on a horizontal axis 6 which extends transversely of the bogie and is displaced longitudinally of the bogie from the connections of the swing links 5 to the bolster 4, and a suspension 9 comprising vertical spring assemblies disposed between the bolster 4 and structure 7. The structure 7 may be integral with the vehicle body 8; or be connected thereto by trunnion mountings 14, Fig. 5, for pivoting about axis 15 contained in the longitudinal vertical centre plane of the vehicle, under the action of hydraulic tilting jacks 16 and springs 17; or be connected thereto by a centre pivot 18, Fig. 6, and side bearers 19 between the body 8 and outrigger arms 20 rigid with the structure 7. Alternatively the structure 7 may comprise a rigid beam (24), Figs. 8 and 9 (not shown), interconnecting the adjacent ends of two adjacent articulated vehicle bodies (8a and 8b). In another form, Fig. 10, a pair of adjacent vehicle bodies 8a and 8b are each mounted on a respective structure 7, each of the latter being connected via a respective bolster 4 to a common bogie frame 3.