| 摘要 |
PURPOSE: A heavy-duty radial tire is provided to ensure improved durability of a bead part because an inner liner encloses a part of a hump strip of a bead toe and a reinforcing rubber sheet is attached to the contact part between the hump strip and the inner liner. CONSTITUTION: A heavy-duty radial tire comprises a bead bundle(2), a carcass(3), a steel chafer(4), a nylon chafer(5), an inner liner(6), and a bead toe(8). The bead bundle comprises upper and lower bead fillers(1a,1b). The bead toe includes a hump strip(7) which is extended to the bead bundle. The inner liner encloses an edge part(7a) of the hump strip. A reinforcing rubber sheet(9) is attached to the contact part between the hump strip and the inner liner.
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