发明名称 TIRE FOR WINTER
摘要 <p>A winter tire providing an improved traction performance on the snow. A tread (14) comprises a surface layer (21) formed of a rubber having a Shore A hardness of 50 to 56 and an inner layer (22) formed of a rubber having a Shore A hardness 2 points higher than that of the rubber of the surface layer (21). The surface layer (21) is so formed as to be thicker in the tread center region (10A) than in the tread shoulder region (10B). Thus it is made easier for sipes (18) to open in the tread center region (10A), and the rigidity in the tread shoulder region (10B) is ensured.</p>
申请公布号 EP2261061(A4) 申请公布日期 2012.03.07
申请号 EP20090722544 申请日期 2009.03.19
申请人 KABUSHIKI KAISHA BRIDGESTONE 发明人 YAMAMOTO, TOMOMICHI;HASHIMOTO, KENTO
分类号 B60C11/00;B60C11/12;B60C11/16 主分类号 B60C11/00
代理机构 代理人
主权项
地址