发明名称 |
Manufacturing method of rubber member for tire, and pneumatic tire |
摘要 |
A manufacturing method of a rubber member for a tire includes a winding step in which a rubber strip is spirally winding and overlapping around a surface of a to-be wound body, thereby forming a tire rubber member around which the rubber strip is overlapped. A plurality of air-vent grooves are formed on at least one of surfaces of the rubber strip. Each air-vent groove extends at an angle theta of 20 to 90° with respect to the longitudinal direction of the rubber strip, the maximum groove width of the air-vent groove is 0.3 to 3.0 mm, and the maximum groove depth thereof is 0.1 to 3.0 mm.
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申请公布号 |
US7628881(B2) |
申请公布日期 |
2009.12.08 |
申请号 |
US20060594849 |
申请日期 |
2006.11.09 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD. |
发明人 |
SAKAMOTO MASAYUKI |
分类号 |
B29D30/00;B29D30/52;B60C11/00 |
主分类号 |
B29D30/00 |
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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