PNEUMATIC RADIAL LIGHT-TRUCK CAR TIRE (EMBODIMENTS) Russian patent published in 2023 - IPC B60C9/08 B60C9/22 

FIELD: tires.

SUBSTANCE: group of inventions relates to pneumatic car tires of radial design, nominal profile height of which is 135÷142 mm, or 143÷150 mm, or 151÷157 mm, or 158÷165 mm, or 166÷173 mm. The tire consists of a tread (1), a rubberized breaker bracelet consisting of two layers of rubberized metal cord (2), and one or two shielding layers (3), sidewalls made of at least two types of rubber (rubber compound sidewall (4), rubber mixture of the side tape (5)), side wings consisting of a side ring (6) and a filling cord (7), two layers of rubberized textile cord (8), having a radial direction of the threads, as well as duplicated layers of a sealing layer (9) and a process layer (10). The frame part consists of sidewalls made of at least 2 two types of rubber (sidewall and side tape), side wings, consisting of a side ring and a filler cord, two layers of rubberized textile cord, as well as duplicated layers of a sealing layer and a process layer. The design parameters for the manufacture of the side and over-side zones of tires differ for tires with different profile heights, they are determined and calculated in optimal values for the embodiments of the group of inventions.

EFFECT: improvement in the operational characteristics of the tire.

10 cl, 6 dwg, 9 tbl