发明授权
US06619354B1 Run flat pneumatic tire with shoulder cushion rubber layer loss tangent less than carcass coating rubber loss tangent
失效
运行平坦充气轮胎与肩垫橡胶层损耗切线小于胎体涂层橡胶损耗角正切
- 专利标题： Run flat pneumatic tire with shoulder cushion rubber layer loss tangent less than carcass coating rubber loss tangent
- 专利标题（中）： 运行平坦充气轮胎与肩垫橡胶层损耗切线小于胎体涂层橡胶损耗角正切
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申请号： US09622445申请日： 2000-08-17
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公开(公告)号： US06619354B1公开(公告)日： 2003-09-16
- 发明人: Kazuomi Kobayashi , Tomohisa Nishikawa , Kenji Matsuo , Hiroki Sawada
- 申请人： Kazuomi Kobayashi , Tomohisa Nishikawa , Kenji Matsuo , Hiroki Sawada
- 优先权： JP10-358718 19981217; JP11-60268 19990308
- 主分类号： B60C1700
- IPC分类号： B60C1700
摘要：
There is provided a pneumatic tire having an aspect ratio of not less than 60 and considerably improving run flat durability as compared with the conventional type of the run flat tire, wherein at least one cushion rubber layer having a loss tangent lower than a loss tangent (tan &dgr;) of a coating rubber for cords of a carcass ply is arranged between an end portion of a belt and a reinforcing rubber layer in a shoulder region and between mutually adjacent tire constitutional members. And also, when the carcass is comprised of plural plies, at least one ply is separated off in a zone beneath the belt, whereby the ride comfort against vibrations can be more improved.
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