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    MOTORCYCLE PNEUMATIC TIRE
    63.
    发明授权
    MOTORCYCLE PNEUMATIC TIRE 有权

    公开(公告)号：EP2724872B1

    公开(公告)日：2018-05-23

    申请号：EP12803195.2

    申请日：2012-06-22

    申请人： Bridgestone Corporation

    发明人： KURASHINA Daisuke

    IPC分类号： B60C11/117 ,  B60C11/03

    CPC分类号： B60C11/03 ,  B60C11/0302 ,  B60C2011/0365 ,  B60C2011/0372 ,  B60C2011/0374 ,  B60C2200/10

    摘要： Provided is a motorcycle pneumatic tire having a more excellent durability than that of a conventional tire while maintaining excellent wet braking performance. Provided is a motorcycle pneumatic tire including a ring-shaped tread portion 10. A steeply-inclined groove 1a having an inclination angle ¸c of larger than 0° and not larger than 35° with respect to the circumferential direction is provided on, when the width of the tread portion 10 is set to Tw, the whole or a part of regions from a tire equator CL to lengths of 1/4Tw in the width direction in a V shape centering on the tire equator; and a mildly-inclined groove 1b having an inclination angle ¸s of 45° to 90° with respect to the circumferential direction is provided on the whole or a part of regions from the outside end portion of the steeply-inclined groove 1a in the tire width direction to a tread end portion discontinuously with the steeply-inclined groove 1a.

    PNEUMATIC TIRE
    69.
    发明公开
    PNEUMATIC TIRE 有权
    LUFTREIFEN

    公开(公告)号：EP3015288A4

    公开(公告)日：2017-03-22

    申请号：EP14826907

    申请日：2014-07-08

    申请人： SUMITOMO RUBBER IND

    发明人： YOSHIDA YUKISHI

    IPC分类号： B60C11/117 ,  B60C11/03 ,  B60C11/04 ,  B60C11/11 ,  B60C11/12 ,  B60C11/13

    CPC分类号： B60C11/0332 ,  B60C11/0304 ,  B60C11/11 ,  B60C11/1259 ,  B60C2011/0344 ,  B60C2011/0346 ,  B60C2011/0353 ,  B60C2011/0355 ,  B60C2011/0365 ,  B60C2011/0367 ,  B60C2011/0374 ,  B60C2011/0381 ,  B60C2011/0383 ,  B60C2011/1213

    摘要： This pneumatic tire is provided with a center land section (5) demarcated between a pair of center primary grooves (3) extending in a zig-zag shape at a tread section (2). The center land section (5) is provided with: one center narrow groove (10) extending contiguously in a zig-zag manner in the peripheral direction of the tire at the tire equator (C); and a plurality of center lug grooves (11) that traverse the center narrow groove (10) from the center primary groove (3) and have a terminus (11e) positioned within the center land section (5). The center lug grooves (11) have: a primary groove section (12) extending from the center primary groove (3) to an apex (10t) of the zig-zag of the center narrow groove (10), and is inclined to one side with respect to the axial direction of the tire; and a sub-groove section (13) extending from an apex (10t) of the zig-zag to the terminus (11e) and inclined in the reverse direction from the primary groove section (12).

    摘要翻译： 该充气轮胎具有划分在胎面部2上以锯齿形状延伸的一对中央主沟槽3之间的中央着地部5。 中央着地部（5）具备：在轮胎赤道线（C）沿轮胎圆周方向以锯齿状连续延伸的一个中央细沟（10）; 以及从中央主沟槽（3）横穿中央细沟槽（10）并具有位于中央着地部分（5）内的终点（11e）的多个中央横向花纹沟（11）。 中央横向花纹沟（11）具有：从中央主沟（3）延伸到中央细沟（10）的Z字形的顶点（10t）的主沟部分（12），并且倾斜到一个 相对于轮胎的轴向的一侧; 以及从Z字形的顶点（10t）延伸到终点（11e）并且从主凹槽部分（12）沿相反方向倾斜的子凹槽部分（13）。