ANCHOR-TYPE RAIL FIXING WITH COMPONENTS Russian patent published in 2021 - IPC E01B9/30 E01B9/48 

FIELD: rail track superstructure.

SUBSTANCE: invention relates to elements of the superstructure of a rail track. Anchor-type rail fastening is characterized by the fact that an anchor is used, in which the dimensions of the cross-sections of the elements of its lower part are reduced, and the directions of the shanks are deviated from the vertical axis by an angle in the range from 15 to 75 degrees. The shock-absorbing under-rail pad is made with symmetrical side surfaces oriented along the rail, each of which consists of a lateral inclined surface corresponding to an inclined surface of the groove of the under-rail part of the under-rail base, and an upper lateral inclined surface having a reverse inclination and located above the level of the groove of the under-rail base, with the width the upper under-rail surface of the shock-absorbing under-rail pad is 3-8% less of the width of the rail sole. The spring terminal has a circular cross-section. The rail insulating pad has a vertical element with a plane on which the protrusion is located, and a horizontal element located at an angle to the vertical element.

EFFECT: increases strength, operational reliability and durability of the rail fastening, ensures reliable and stable attachment of the rail to the sub-rail base during the entire service life.

8 cl, 13 dwg, 2 tbl