ARROW Russian patent published in 2022 - IPC E01B3/46 E01B7/22 

FIELD: railways.

SUBSTANCE: invention relates to the field of the upper structure of a railway track, in particular to arrows for a rail track. The arrow contains rails and sleepers. Rails are fixed to sleepers in pairs. Intermediate layers are laid between the rail and the sleeper. Elastomeric soles are located on lower sides of sleepers. Intermediate layers of the sole contain at least one elastomeric layer. Moreover, elastomeric layers of soles of at least two consecutive sleepers are made with different softness. Elastomeric layers of intermediate layers of at least two consecutive sleepers are made with different softness. At the same time, in the case of changing the softness of the elastomeric layer of the sole of the sleeper from one of sleepers to the next, intermediate elastomeric layers are made of the same softness. In the case of changing the softness of the intermediate elastomeric layer, elastomeric layers of soles are made of the same softness.

EFFECT: smoothing of the drawdown of rails during the passage of the train is improved.

9 cl, 8 dwg