RAIL FASTENING UNIT Russian patent published in 2022 - IPC E01B9/30 E01B9/48 

FIELD: rail fasteners.

SUBSTANCE: invention relates to rail fasteners intended for use in a continuous welded rail and jointed track with rails on reinforced concrete sleepers and ballastless reinforced concrete support. The rail fastening unit contains a sub-rail gasket, side stops, terminals fastened to the sleeper by means of fastening. Each side stop includes a through hole, a guide, the side surface of which smoothly turns into an inclined side thrust surface of the thrust protrusion, which in turn turns into a horizontal surface lying at the base of the working protrusion, restrictive protrusions and guide walls with end sections made along the radius R. The working protrusion is made with a height k, not exceeding the height f from the sub-rail platform to the point of contact of the terminal with the feather of the sole of the rail, but not less than the total height of the sub-rail gasket and ¾ of the thickness of the feather of the sole of the rail. The guide walls are made with a height h not exceeding ¾ of the terminal diameter, but not less than ⅓ of the terminal diameter, while the radius R of the rounding of the end sections of the guide walls is 15-22 mm.

EFFECT: invention enables to improve the reliability of the rail fastening unit increases due to the use of a more reliable side stop with the specified parameters in the rail fastening unit.

10 cl, 7 dwg