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发明公开
CN106394129A 充气轮胎 无效 - 驳回

充气轮胎
摘要：
本发明涉及充气轮胎，确保轮胎的径向成长的抑制效果及带束耐久力，且提高胎圈耐久力。充气轮胎(1)的带束层(10)具备：第一主作用带束(12)；配置于第一主作用带束(12)的轮胎径向外侧，且具有与第一主作用带束(12)的帘线角度(θ2)相比相对于轮胎周向的朝向不相同的帘线角度(θ4)的第二主作用带束(14)；以及加强带束(13)。加强带束(13)的帘线角度(θ3)在6度以上且9度以下。加强带束(13)的宽度(W3)在轮胎截面最大宽度(Wt)的50％以上，且比第一以及第二主作用带束(12、14)的宽度(W2、W4)中的宽度窄的带束还窄。
摘要（英）：

A pneumatic tire has a belt layer arranged between a carcass and a tread portion. The belt layer (10) has a first main working belt (12), a second main working belt (14) arranged at an outer side of the first main working belt (12) in a tire-radial direction, and a reinforcement belt (13). A cord angle (theta 4) of the second main working belt (14) differs from a cord angle (theta 2) of the first main working belt (12) in a direction with respect to a tire-circumferential direction. A cord angle (theta 3) of the reinforcement belt (13) is not smaller than 6 degrees and not larger than 9 degrees. A width (W3) of the reinforcement belt (13) is equal to or wider than 50% of a tire-section width (Wt) and not wider than either narrower one (W2, W4) of the first and second main working belts (12, 14).

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