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发明公开
CN101743137A 机动二轮车用充气轮胎 失效 - 权利终止

机动二轮车用充气轮胎
摘要：
胎面部(2)在轮胎宽度方向上被分成五个区，该五个区包括中央胎面区(A)、一对肩侧胎面区(C)和一对中间胎面区(B)。中央胎面区A的胎面表面的轮胎宽度方向上的曲线长度在整个胎面表面的轮胎宽度方向上的曲线长度的10％至35％的范围内，一对肩侧胎面区C的胎面表面的宽度方向上的总曲线长度在整个胎面表面的轮胎宽度方向上的曲线长度的5％至35％的范围内。形成中间胎面区B的胎面胶的100％Mod、即100％拉伸时的模量比形成中央胎面区A的胎面胶的100％Mod大，且各肩侧胎面区C的损耗角正切比中央胎面区A的损耗角正切大。
摘要（英）：

A tread portion (2) is widthwise divided into five regions of a central tread portion region (A), shoulder tread portion regions (C) and intermediate tread portion regions (B). The widthwise curve length of the tread surface of the central tread portion region (A) is within a range of 10 to 35 % of the widthwise curve length of the whole tread surface. The widthwise curve length of the tread surfaces of the shoulder tread portion regions (C) is within a range of 3 to 35 % of the widthwise curve length of the whole tread surface. The 100 % Mod or the modulus of the tread rubber forming the intermediate tread portion regions (B) at the extension time of 100 % is larger than the 100 % Mod of the tread rubber forming the central tread portion region (A), and the loss tangent of the shoulder tread portion regions (C) is larger than the loss tangent of the central tread portion region (A).

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