| 摘要 |
The tongue for a railroad (railway) switch includes a head (10) with a running surface ( SIGMA ), a web (20) with a mid-plane ( pi ) and a foot (30), is characterised in that the running surface ( SIGMA ) is inclined relative to this mid-plane ( pi ), in that the foot (30) has two unequal flanges (300), the larger of which is located on the side towards which the running surface ( SIGMA ) is inclined, and in that the centre of gravity (G) is located out of the mid-plane ( pi ) and placed on the side of the larger flange (300). Application to railroad switches for tracks with long welded rails on which trains travel at very high speed. <IMAGE> |
