Points comprising a reinforced switch tongue blade

Details Points comprising a reinforced switch tongue blade Points comprising a reinforced switch tongue blade

E - Fixed Constructions

01

B

E01B 7/02 (2006.01)

Patent

CA 2490954

In a switch including a main track and a branch track, wherein one rail of each track is each configured as a tongue rail and movable into abutment on the respective stock rail, at least one stock rail (1), in its region of abutment on the tongue rail (2), is designed to have a reduced rail head width as compared to the region located outside said region of abutment, wherein the rail head width, starting from the tip (3) of the tongue, decreases as far as to a point (4) at which the carrying wheel comes into lateral contact with the tongue rail (2) and increases in the region following thereupon, and that the tongue rail (2) is designed to be reinforced in cross section towards the stock rail (1) according to the reduction in the width of the stock rail head.

L'invention concerne un aiguillage de voie comportant une voie directe et un embranchement, un rail de chaque voie étant une lame d'aiguille mobile en appui contre une contre-aiguille. L'invention est caractérisée en ce qu'au moins une contre-aiguille (1), dans la zone de son appui contre la lame d'aiguille (2), a un champignon de rail moins large comparativement à la zone située hors de l'appui. La largeur du champignon diminue de la pointe de l'aiguille (3) vers un point (4) de contact latéral entre la roue et la lame d'aiguille (3), cette largeur augmentant à nouveau dans la zone se trouvant dans le prolongement. La lame d'aiguille (2) a une section transversale renforcée relativement à la contre-aiguille (4) en fonction de la diminution de la largeur du champignon de la contre-aiguille.

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