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    Pneumatic tire with tread including gently slant grooves having two different inclination angles
    21.
    发明授权
    Pneumatic tire with tread including gently slant grooves having two different inclination angles 有权
    具有胎面的气动轮胎包括具有两个不同倾斜角度的缓慢倾斜的槽

    公开(公告)号：US07900668B2

    公开(公告)日：2011-03-08

    申请号：US11637029

    申请日：2006-12-12

    申请人： Shungo Fujita

    发明人： Shungo Fujita

    IPC分类号： B60C11/11 ,  B60C11/12

    CPC分类号： B60C11/0302 ,  B60C11/033 ,  B60C11/12 ,  B60C11/13 ,  B60C2011/0374 ,  Y10S152/03

    摘要： In a pneumatic tire having excellent drainage property and performances on snow, a central main groove 2 and a side main groove 4 and first and second gently slant grooves 5, 6 are arranged in a tread portion 1, and the first and second gently slant grooves 5, 6 are terminated in a central land portion 9 between the central main groove 2 and the side main groove 4, and first and second fine grooves 7, 8 are further arranged so as to extend from terminal ends 11, 12 of the first and second gently slant grooves 5, 6 toward the central main groove 2 and open thereto, respectively.

    摘要翻译： 在具有优异的排水性能和雪上性能的充气轮胎中，中央主槽2和侧主槽4以及第一和第二轻度倾斜槽5,6布置在胎面部1中，并且第一和第二轻轻地倾斜的槽 在中心主槽2和侧主槽4之间的中央陆部9处端接第一和第二细槽7,8，从第一和第二细槽的末端11,12延伸， 第二轻轻地倾斜的槽5,6朝向中心主槽2分别敞开。

    Pneumatic tire
    25.
    发明授权
    Pneumatic tire 有权

    公开(公告)号：US09789734B2

    公开(公告)日：2017-10-17

    申请号：US14007804

    申请日：2012-03-26

    申请人： Shungo Fujita

    发明人： Shungo Fujita

    IPC分类号： B60C11/03 ,  B60C11/12

    CPC分类号： B60C11/0306 ,  B60C11/0302 ,  B60C11/1236 ,  B60C2011/0346 ,  B60C2011/0372 ,  B60C2011/0381 ,  B60C2011/1209 ,  B60C2011/1213

    摘要： An object is to enhance traction performance and handling stability performance, these being related to braking performance and acceleration performance on snowy road surfaces. A tread (12) of a pneumatic tire (10) includes: two circumferential direction main grooves (14) that are formed further to the tire width direction inside from the tread (12) ground contact edge T than positions at ⅓ of the ground contact width W and that extend along the tire circumferential direction; a central land portion row (16) formed between the two circumferential direction main grooves (14); edge land portion rows (18) respectively formed at tire width direction outsides of the two circumferential direction main grooves (14; and main lug grooves (20) extending in the edge land portion rows (18) from the circumferential direction main grooves (14) towards the ground contact edges T. The edge land portion rows (18) are not formed with main grooves that place tire circumferential direction neighboring main lug grooves (20) in communication with each other.