FRICTION WEDGE Russian patent published in 2020 - IPC B61F5/12 

FIELD: rail vehicles.

SUBSTANCE: invention relates to railway transport, particularly, to wedges of friction dampers. Wedge is made in the form of hollow body and comprises upper horizontal wall, support platform with collar, front vertical wall, inclined wall, two side walls and rear vertical wall. Wear indicators are made on working surfaces. Depth of the indicator is the wedge maximum wear. On the inclined surface the indicator is made in the form of a slot located in the middle of the surface along its entire length from the upper horizontal surface to the front vertical wall. On the rear wall the indicators are made in the form of slots, one of them is located in the middle of the upper wall edge, and the other two are located opposite each other in the lower part of the working surface above the platform with the annular collar.

EFFECT: higher reliability of bogie.

7 cl, 4 dwg