发明名称 |
Pneumatic tire |
摘要 |
A pneumatic tire at least partially reinforced with steel cords. Most of steel filaments of said steel cords comprise iron materials having carbon content of 0.75 to 0.85 percent by weight. Said steel cords have an preferred tensile strength (TS) calculated from the following formula; <IMAGE> A = -177D - 1.84N + 0.02N2 wherein W is the weight (g/m) of a steel cord, D is the diameter (mm) of the steel filament and N is the number of steel filaments of a steel cord and said steel cords also have a maintenance ratio of the knot strength of more than 60%.
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申请公布号 |
US4732197(A) |
申请公布日期 |
1988.03.22 |
申请号 |
US19850736986 |
申请日期 |
1985.05.23 |
申请人 |
TOYO TIRE & RUBBER CO., LTD. |
发明人 |
HEISHI, SEIICHIRO;TAKAHIRA, KOJI |
分类号 |
B60C9/00;B60C9/20;D07B1/06;(IPC1-7):B60C9/18 |
主分类号 |
B60C9/00 |
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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