公开(公告)号：US20110067794A1

公开(公告)日：2011-03-24

申请号：US12724831

申请日：2010-03-16

申请人： Kenichirou Endou ,  Jun Shimada ,  Ken Gokita ,  Mitsuru Naito ,  Jun Arakawa

发明人： Kenichirou Endou ,  Jun Shimada ,  Ken Gokita ,  Mitsuru Naito ,  Jun Arakawa

IPC分类号： B60C11/03

CPC分类号： B60C11/0302 ,  B60C11/12 ,  B60C2011/0374 ,  B60C2011/0381 ,  B60C2011/0388 ,  B60C2011/1209

摘要： A pneumatic tire is described having a designated rotational direction, wherein drainage grooves in a tread portion are positioned on each side of a tire equatorial line extending at an angle in a direction opposite the rotational direction while curving towards an outside in the tire width direction. An inclination angle θ1 to the tire circumferential direction at the terminal center position of the leading side of the drainage grooves is from 0° to 45°, while an inclination angle θ4 to the tire circumferential direction at the terminal center position of the trailing side of the drainage grooves is from 65° to 90°. Land portions defined by a rib section continuously extend along the tire equatorial line and are further defined by a plurality of branched sections continuously extending and branched from the rib section towards the outside in the tire width direction.

摘要翻译： 描述了具有指定旋转方向的充气轮胎，其中胎面部分中的排水槽位于轮胎赤道线的与沿旋转方向相反的方向上以一定角度延伸的每侧上，同时在轮胎宽度方向上向外弯曲。 在排水槽的前端的终端中心位置处的轮胎周向的倾斜角度θ1为0°〜45°，倾斜角度为与倾斜角度θ相对的轮胎圆周方向 排水槽的后侧为65°〜90°。 由肋部限定的陆部沿着轮胎赤道线连续地延伸，并且还通过在轮胎宽度方向上从肋部朝向外侧连续延伸和分支的多个分支部分进一步限定。