EP 0641408 B1 19971229 - SYSTEM FOR SECURING RAILS ON THE SOLE PLATES OF A RAILWAY TRACK
Title (en)
SYSTEM FOR SECURING RAILS ON THE SOLE PLATES OF A RAILWAY TRACK
Title (de)
BEFESTIGUNGSSYSTEM FÜR SCHIENEN AUF UNTERSCHWELLUNG EINER GLEISANLAGE
Title (fr)
DISPOSITIF PERMETTANT DE FIXER DES RAILS SUR LES SELLES DE RAIL D'UNE VOIE FERREE
Publication
Application
Priority
- DE 9300430 W 19930513
- DE 4216015 A 19920513
- DE 4220112 A 19920618
Abstract (en)
[origin: WO9323623A1] In a system for securing rails (2) on the sole plates of a railway track, bolts (9) are anchored on the one hand to the sleepers (4) and on the other hand they elastically stress a rail foot (2) insulated from the sleeper by intermediate layers by means of insulating wedge rail anchors (8) made of plastic and having a bore for the bolts. Wedge rail anchors may be used which extend over the rail foot and which have a passage composed of two bores (12, 13) inclined with respect to each other. In another embodiment, the material thickness of the wedge anchor rail below the nose (15) that extends over the rail foot is the same both on the side that faces the rail foot and on the side opposite to the rail foot. In yet another embodiment, the sole plates have a support (43) for the wedge rail anchor (8) which is taken out in the area of the bolt for a pre-mounting position. All embodiments of the wedge rail anchor allow the securing system to be pre-mounted on the sleeper, achieving at the same time such a large clearance between the securing elements that a rail may be set on the sleeper without taking out the securing parts. The wedge rail anchor is preferably made of a cold resistant, high modulus, thermoplastic polyurethane and has elements for supporting the wedge rail anchor against an anchoring in the rail. Finally, the wedge rail anchor, the dowel (5) and/or the intermediate layer under the rail foot may have elastic properties that match those of the other cooperating spring elements.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
AT CH DE IT LI NL
DOCDB simple family (publication)
WO 9323623 A1 19931125; AT E161596 T1 19980115; AU 4059193 A 19931213; DE 59307894 D1 19980205; EE 9400310 A 19960415; EP 0641408 A1 19950308; EP 0641408 B1 19971229; HU 9403243 D0 19950228; HU T73474 A 19960828; RU 94046007 A 19960920
DOCDB simple family (application)
DE 9300430 W 19930513; AT 93909770 T 19930513; AU 4059193 A 19930513; DE 59307894 T 19930513; EE 9400310 A 19941121; EP 93909770 A 19930513; HU 9403243 A 19941111; RU 94046007 A 19941111