Radial tire having inner and outer carcass layers, cords of outer layer are thinner relative to inner and cover bead filler

摘要

A radial tire for heavy duty vehicles with a plurality of carcass ply layers made of textile cords having end portions of such layers turning round a bead core and having turnup along a bead filler is disclosed. The tire of this invention has its inner layers comprising thick cords, while outer layers comprises thin cords long enough to entirely cover the bead filler, whereby the bead filler is fully in contact with the outer layer made of thin cords.