TIRE WITH ROUNDED BEAD TOE AND A MOLD FOR FORMING THE TIRE

摘要

A heavy load truck or bus tire for mounting on a 15.degree. drop center rim has a rounded bead toe that eliminates mounting problems and saves on material. Th e bead toe is defined by the bead seat and bead toe end surface forming an included angle in a range of 105.degree. to 150.degree.. In addition, a transition point between the bead seat and bead toe end surface is located relative to the bead seat point as in a range of 0.95 to 0.97 of the axial distance from the tire center and at least 0.78 of the bead seat point radius. A mold for forming the tire is also disclosed.