发明名称 |
RADIAL TIRE WITH BEAD REINFORCING ELEMENTS |
摘要 |
<p>A radial carcass pneumatic tire having a carcass ply turn-up portion includes a reinforcement ply folded around each bead ring. Each reinforcement ply overlaps and extends beyond the turn-up edge of the carcass ply and includes for example a steel cord portion of thick cross-section abutting a textile cord portion of thinner cross section. The cords throughout the reinforcement ply are arranged obliquely with the cords of the radial carcass ply. In other respective embodiments a transition zone between the thick and thin portions of the reinforcement ply includes a cover strip, an overlapping portion and a filler strip. The bead reinforcement constructions reduce bead element edge separations and provide a desirable graduated stiffness from the bead to the beginning area of the sidewall permitting optimal transferring of torque and force.</p> |
申请公布号 |
CA1022046(A) |
申请公布日期 |
1977.12.06 |
申请号 |
CA19750237336 |
申请日期 |
1975.10.09 |
申请人 |
UNIROYAL AG |
发明人 |
GROSCH, KARL A.;VAN DER BURG, SJIRK;BERTRAND, MARCEL J. |
分类号 |
B60C9/02;B60C15/06 |
主分类号 |
B60C9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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