Cross frog

E - Fixed Constructions – 01 – B

Patent

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Details

E01B 7/00 (2006.01) E01B 7/10 (2006.01)

Patent

CA 2375046

The invention relates to a cross frog for switches and crossings including a cross frog tip and, extending at both sides thereof, wing rails and running rails, having a basic shape aligned with a main or branch track. To achieve a reduction of the wear of the cross frog tip zone, without requiring reconstruction of the cross frog tip itself or of the guide rail associated therewith or of their orientation to one another, it is proposed that at least one of the running rails, in the zone of the cross frog tip, so deviates from its basic shape that a vehicle with a wheel- or bogie axle traversing the main or branch track experiences an influence of a movement directed away from the cross frog tip.

Coeur (10) pour rails et croisements, qui comporte une pointe (14) ainsi que des pattes de lièvre (16, 18) et des rails de roulement (20, 22) s'étendant de chaque côté de la pointe et présentant un tracé fondamental (38) orienté vers une voie principale ou secondaire (26, 28). La présente invention a pour objet de réduire l'usure de la zone de pointe de coeur sans qu'il soit nécessaire de modifier la structure de la pointe de coeur elle-même ou des contre-rails associés à ladite pointe, ou l'adaptation de ces éléments entre eux. A cet effet, au moins un des rails de roulement s'écarte de son tracé fondamental dans la zone de la pointe de coeur de manière telle qu'un véhicule ferroviaire roulant sur la voie principale ou sur la voie secondaire est soumis au niveau de son essieu de roues ou de boggie à un mouvement qui l'éloigne de la pointe de coeur.

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