发明名称 |
Pneumatic tires |
摘要 |
A pneumatic tire having a tread reinforcement layer constituted by a steel cord strip layer adjacent the carcass and an aromatic polyamide cord strip layer superposed to the steel cord strip layer in a parallel side-by-side relationship. The aromatic polyamide cord strip layer is folded at its both edges toward the center, in such a manner that the folded portions contact the main portion in a parallel side-by-side relationship. The main portion has a width ranging between 100 and 110% of the width of the tread surface, while the width of each folded portion ranges between 27.5 and 35% of the width of main portion. Furthermore, the free edge of each folded portion is located at a distance from the center of the outermost circumferential groove in the tread surface, which distance being between 25 and 75% of the distance between the outermost groove and the adjacent groove.
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申请公布号 |
US4387755(A) |
申请公布日期 |
1983.06.14 |
申请号 |
US19800220913 |
申请日期 |
1980.12.29 |
申请人 |
THE YOKOHAMA RUBBER CO., LTD. |
发明人 |
KATO, MASAKI;MORIKAWA, TUNEO;KABE, KAZUYUKI |
分类号 |
B60C9/18;B60C9/20;B60C9/26;B60C9/28;(IPC1-7):B60C11/00;B60C9/00 |
主分类号 |
B60C9/18 |
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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