| 摘要 |
PURPOSE: A heavy-duty tire is provided to prevent tension concentration to the end of a cord by positioning a metal cord in the center of a rubber. CONSTITUTION: A heavy-duty tire comprises a reinforcement part(100). The reinforcement part comprises a rubber cord and a metal cord. The rubber cord is formed along the columnar direction(Pi) of a belt part and is arranged along the width(W) direction of the belt part. The metal cord comprises a plurality of strands. The strands are radially and separately installed along the outer circumference of the rubber cord and are spirally wound along the outer circumference of the rubber cord.
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