Global Patent Index - EP 0420922 B1

EP 0420922 B1 19940119 - RAILWAY BOGIE WITH IMPROVED STABILITY AND BEHAVIOUR IN CURVES.

Title (en)

RAILWAY BOGIE WITH IMPROVED STABILITY AND BEHAVIOUR IN CURVES.

Title (de)

EISENBAHNDREHGESTELL MIT VERBESSERTEM STABILITÄTS- UND KURVENVERHALTEN.

Title (fr)

BOGIE FERROVIAIRE A STABILITE ET COMPORTEMENT EN COURBE AMELIORES.

Publication

EP 0420922 B1 19940119 (FR)

Application

EP 89907768 A 19890619

Priority

  • FR 8808132 A 19880617
  • FR 8813016 A 19881005

Abstract (en)

[origin: WO8912566A1] The invention relates to the railway rolling-stock industry. The axle boxes (20) with shrunk-on wheels are connected to a rigid bogie frame (2, 4) via a primary horizontal link comprising a connecting rod (18) secured to the longitudinal member (2) of the frame by a flexible ball joint (14). At least one of the four axle boxes (20) can slide longitudinally in relation to the longitudinal member (2). The sliding movements are controlled by a rod system (22, 24, 26, 30), the input component (22) of which is integral with the vehicle frame, or via a damper and a flexible return member located mutually in parallel. Bogies with wheels shrunk on the axles, as per the invention, are better able to negotiate curves.

IPC 1-7

B61F 5/44; B61F 5/40

IPC 8 full level

B61F 5/44 (2006.01)

CPC (source: EP US)

B61F 5/44 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 8912566 A1 19891228; CA 1330279 C 19940621; DE 68912588 D1 19940303; DE 68912588 T2 19940616; EP 0420922 A1 19910410; EP 0420922 B1 19940119; US 5235918 A 19930817

DOCDB simple family (application)

FR 8900310 W 19890619; CA 603018 A 19890616; DE 68912588 T 19890619; EP 89907768 A 19890619; US 61386090 A 19900112