TIRE WITH ROUNDED-OFF EDGE OF BEAD AND ITS MOULD

摘要

FIELD: automotive industry; tire industry. ^ SUBSTANCE: invention relates to tires for heavy trucks and buses. Proposed tire has rounded-off edge of bead formed by seat of bead and end surface of bead edge forming angle of divergence within 105 and 150o. Moreover, point of transition between bead seat and end surface of bead edge is located relative to bead seat point within 0.95 and 0.97 of axial distance from tire center at a distance equal to at least 0.78 of radius of bead seat point. Invention contains description of tire mould. ^ EFFECT: increased service life of tire. ^ 9 cl, 4 dwg