H BEAM SHAPE BEAD WIRE FILED BEAD CORE APPLIED HEAVY LOAD PNEUMATIC TIRE

摘要

The present invention improves the bonding force of the bead wires to improve the durability, while reducing the cross-sectional area to reduce the weight, and to have a structure that minimizes the deformation of the external force such as longitudinal force, lateral force, or torsion applied to the tire. In a pneumatic tire comprising (100), a side wall portion (200) and a bead portion (P), the bead core (1) of the bead portion (P) has a cross section of a web (1b) and a flange ( It provides a pneumatic tire, characterized in that the bead wire (1a) having a cross-sectional shape of an H-beam having 1c) is fitted and laminated.