FIELD: tyre industry; road vehicles. SUBSTANCE: each bead of tyre casing has following characteristics: it has no bead core and it includes ring-shaped member whose tensile strength is considerably lower than value required for bead core. At least two reinforcement layers of cord are arranged either in contact with ring-shaped member or close to number. Tensile strength of reinforcement layers is not less than tensile strength required for bead core. Carcass cord layer is wound on ring-shaped member. Upper ends of reinforcement layers are arranged at different heights in tyre bead. EFFECT: facilitated manufacturing of tyre casing. 8 cl, 4 dwg
Authors
Dates
1999-09-27—Published
1995-03-15—Filed