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发明公开
CN104097461A 充气轮胎 有权

充气轮胎
摘要：
本发明提供的充气轮胎，能够维持湿路性能并且提高噪声性能。胎肩主沟（3）以及中央主沟（4）具有胎面接地宽度（TW）的7～9%的沟宽度。中间陆地部（5）包括外侧中间陆地部（10）。外侧中间陆地部（10）由中间细沟（12）划分为第一外侧中间陆地部（13）以及第二外侧中间陆地部（14）。第一外侧中间陆地部为条状部。在第二外侧中间陆地部（14）设置有多条外侧中间横沟（15）。外侧中间横沟（15）包括：第一部分（17）；以与第一部分（17）相反的朝向倾斜的第二部分（18）；以及第一部分（17）与第二部分（18）之间的连接部（19）。连接部（19）设置在比外侧中间陆地部（10）的轮胎轴向的中心位置靠中央主沟（4）侧的位置。
摘要（英）：

The present invention relates to a pneumatic tire that exhibits excellent noise performance while maintaining wet performance. Each of the shoulder and center grooves (3, 4) has a groove width (TW) set in range of 7 to 9% of width of the tread footprint. Middle land sections (5) include an outer middle land portion (10) divided by a middle narrow groove (12) into a first outer middle land portion (13) and a second outer middle land portion (14). The first outer middle land portion is bar-shaped. A plurality of outer side cross trenches (15) are arranged on the second outer middle land portion (14). Each of outer middle lateral grooves (15) includes a first portion (17) and a second portion (18) having the opposite inclination to the inclination of the first portion (17), and a connection portion (19) between the first portion (17) and the second portion (18). The connection portion (19) is positioned on a center main groove (4) side with respect to the center point of the outer middle land portion (10) in the tire axial direction.

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