TIRE FOR A HEAVY-WEIGHT VEHICLE WITH IMPROVED BEAD DURABILITY, CAPABLE OF IMPROVING FUEL EFFICIENCY DUE TO THE REDUCTION OF TIRE WEIGHT

摘要

PURPOSE: A tire for a heavy-weight vehicle with improved bead durability is provided to improve bead durability by reducing the strain energy of turn up edge of carcass covering a bead core.;CONSTITUTION: A tire for a heavy-weight vehicle with improved bead durability comprises a rim flange(1) and a bead portion(2). The bead portion is installed on the rim flange. A hexagonal bead core(3) of the bead portion is surrounded by a turn up edge(4a) of a carcass(4). A chafer(5) is formed on the turn up edge. A part of the hexagonal bead core contacted with the turn up edge is filled with the first reinforcing material rubber(6).;COPYRIGHT KIPO 2010