PNEUMATIC RADIAL PASSENGER CAR TIRE (VARIANTS) Russian patent published in 2023 - IPC B60C9/08 

FIELD: automotive industry.

SUBSTANCE: invention relates to pneumatic passenger tires of a radial design, the nominal profile height of which is 93÷100 mm or 101÷108 mm or 109÷116 mm or 117÷124 mm or 125÷132 mm. The frame part consists of sidewalls made of at least two types of rubber, side wings, consisting of a bead ring and a filling cord, one or two layers of rubberized textile cord having a radial direction of the threads, as well as duplicated layers of a sealing layer and a technological interlayer. Textile cord is made with certain design parameters. The bead ring is made of high-strength wire of the same diameter 0.89±0.02 mm, linear density 4.89±0.34 g/m, breaking load of at least 1350 N, with a bronze coating weighing 0.5±0.2 g/kg and the mass fraction of tin in the bronze coating being 1.25±0.75%, with the bond strength of the wire with the industrial rubber compound of at least 152 N/12.5 mm.

EFFECT: improvement in the operational characteristics of the tire.

15 cl, 6 dwg, 10 tbl