PURPOSE: To reduce the resistance to the rolling of a tire having at least two belt layers around a carcass, by making at least one belt layer of cords coated with rubber of prescribed properties.
CONSTITUTION: At least one layer of carcass 4, in which a ply is curved back around a bead core 6 outwards in the radial direction of a tire, and at least two layers of belts 3, in which high-elastic cords crossed with each other at a relatively small angle to the circumferential center line of the tire around the carcass are coated with rubber, are provided to reinforce the body of the tire. At least one of the layers of belts 3 is made of cords coated with rubber, the elasticity modulus of which at 25% elongation is 4.0W10.0kg/cm2 and the dynamic elasticity modulus of which is 16.2W40.5kg/cm2. According to this constitution, the resistance to the rolling of the tire is reduced.
WO/2014/103063 | PNEUMATIC TIRE |
JPS62225405 | AIR COMPRESSED RADIAL TYRE USED FOR HEAVY LOAD |
JPH04278891 | MOTORCYCLE |
FURUYA SHINICHI