发明名称 |
Method of manufacturing a foldable bicycle tire having flexible beads |
摘要 |
An improved bicycle tire which can be folded for storage and transportation while maintaining the same running properties as a conventional tire. A plurality of bead cores made of a cord tensile member embedded in the bead section of the tire are provided by winding three to five turns of a cord tensile member having a low elongation ratio and high strength and which has been twisted one to two turns/10 cm in such a manner that the start and finish ends of the bead core overlap one another by 60 to 150 mm. The bead core preferably has a cut elongation of 5% or less and the strength of 300 kg/core.
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申请公布号 |
US4435236(A) |
申请公布日期 |
1984.03.06 |
申请号 |
US19820400202 |
申请日期 |
1982.07.20 |
申请人 |
MITSUBOSHI BELTING LTD. |
发明人 |
INAE, SHOJI;OKAMOTO, HARUNORI |
分类号 |
B29D30/34;B29C67/00;B29D30/32;B29D30/48;B60C15/00;B60C15/04;D07B1/02;(IPC1-7):B29H17/22;B29H17/32 |
主分类号 |
B29D30/34 |
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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