EP 4008600 A4 20220921 - PRIMARY SUSPENSION DEVICE, BOGIE AND RAILWAY VEHICLE
Title (en)
PRIMARY SUSPENSION DEVICE, BOGIE AND RAILWAY VEHICLE
Title (de)
PRIMÄRE AUFHÄNGUNGSVORRICHTUNG, DREHGESTELL UND SCHIENENFAHRZEUG
Title (fr)
DISPOSITIF DE SUSPENSION PRIMAIRE, BOGIE ET VÉHICULE FERROVIAIRE
Publication
Application
Priority
- CN 201910762791 A 20190819
- CN 2019117332 W 20191112
Abstract (en)
[origin: EP4008600A1] Disclosed are a primary suspension device (3), a bogie and a rail vehicle. The bogie comprises: a frame provided with two parallel side beams (1) extending in a longitudinal direction; annular hoops (32) connected to bottom surfaces of end portions of the side beams (1), a centerline of the annular hoop (32) extending in a lateral direction; axle boxes (2), the axle box (2) being located in a space defined by the annular hoop (32), a centerline of the axle box (2) coinciding with the centerline of the annular hoop (32); and a plurality of buffer blocks (31) uniformly arranged between the annular hoops (32) and the axle boxes (2). By means of the primary suspension device (3), the bogie and the rail vehicle according to the invention, the height of the frame can be reduced on the premise that the preset strength and a buffer energy absorption effect are achieved.
IPC 8 full level
B61F 5/30 (2006.01)
CPC (source: CN EP)
B61F 5/308 (2013.01 - CN EP)
Citation (search report)
No further relevant documents disclosed
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4008600 A1 20220608; EP 4008600 A4 20220921; EP 4008600 B1 20240228; CN 112389485 A 20210223; CN 112389485 B 20220318; PT 4008600 T 20240315; WO 2021031398 A1 20210225
DOCDB simple family (application)
EP 19942312 A 20191112; CN 201910762791 A 20190819; CN 2019117332 W 20191112; PT 19942312 T 20191112