| 摘要 |
PURPOSE: A tire for a heavy truck with an improved bead part is provided to prevent a carcass from being separated from a lower filler by reducing frictional stress between the carcass and the lower filler. CONSTITUTION: A tire for a heavy truck with an improved bead part comprises a bead part(1), a carcass(4), and a bumper seat(5). The carcass covers bead bundles(2) and a bead filler. The bumper seat is installed between a lower filler(31) and the carcass. And the bumper seat has a 0.4~1.2mm thickness. The end of the carcass is parallel with the inner carcass.
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