发明授权
- 专利标题： Pneumatic tire tread
- 专利标题（中）： 气动轮胎胎面
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申请号： US749689申请日： 1985-06-28
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公开(公告)号： US4649975A公开(公告)日： 1987-03-17
- 发明人: Tomohiko Kogure , Tadayoshi Hiraga , Riichiro Mama , Nobuhito Takasugi
- 申请人： Tomohiko Kogure , Tadayoshi Hiraga , Riichiro Mama , Nobuhito Takasugi
- 申请人地址： JPX Tokyo
- 专利权人： The Yokohama Rubber Co., Ltd.
- 当前专利权人： The Yokohama Rubber Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-135857 19840630
- 主分类号： B60C11/11
- IPC分类号： B60C11/11 ; B60C11/12 ; B60C11/13 ; B60C11/00
摘要：
A pneumatic tire having a tread portion with a tread pattern which is constituted by main grooves, auxiliary grooves, lug grooves and sipes, wherein the mean depth Gc of the auxiliary grooves, the mean depth Gs of the lug grooves and the mean depth Gk of the sipes are determined in relation to the mean depth G of the main grooves so as to meet the following conditions:Gk/G=0.65 to 0.85Gc/G=0.7 to 0.8Gs/G=0.8 to 1.0
公开/授权文献
- US4062425A Pressure relief valve for a grease gun 公开/授权日：1977-12-13
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