VEHICLE TIRE WITH AN IMPROVED BEAD PORTION COMPRISING A SPIRAL SPRING SHAPE BEAD CORE

摘要

PURPOSE: A vehicle tire with an improved bead portion is provided to prevent the damage to a bead portion by employing a spiral spring shape bead core with flexibility in a circumferential direction.;CONSTITUTION: A vehicle tire comprises a tread, sidewalls formed at both sides of the tread and a bead portion formed at the end of the sidewall. The bead portion comprises a metal bead core(1). The bead core is made of a rectangular metal material in a spiral spring shape.;COPYRIGHT KIPO 2010