发明名称 Pneumatic tire with tread having blocks
摘要 The present invention aims to improve the wet performance while securing steering stability and holding down degradations in noise performance to minimum, and for this purpose, a pneumatic tire in which blocks are disposed at intervals at a tread portion thereof is arranged in that concave blocks with stepped concave portions that extend along block side edges, which face circumferential main grooves, and having a depth from a block top surface that corresponds to 20 to 70% of a block height are provided. The concave portions have a length in a tire circumferential direction of 40 to 95% of a length of the block side edges in the tire circumferential direction and a width in a tire axial direction of 2 to 20 mm.
申请公布号 US7438101(B2) 申请公布日期 2008.10.21
申请号 US20040933299 申请日期 2004.09.03
申请人 SUMITOMO RUBBER INDUSTRIES, LTD. 发明人 SHIROUZU TOSHIMICHI
分类号 B60C11/12;B60C11/11;B60C11/13 主分类号 B60C11/12
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