公开(公告)号：US20110041973A1

公开(公告)日：2011-02-24

申请号：US12830873

申请日：2010-07-06

Applicant: Kazuki NUMATA

Inventor： Kazuki NUMATA

IPC: B60C11/11

CPC classification number: B60C11/0306 ,  B60C11/01 ,  B60C11/0302 ,  B60C11/12 ,  B60C2011/0369 ,  B60C2011/0388 ,  B60C2011/1231 ,  B60C2011/1245

Abstract: A pneumatic tire (1) provided in the tread portion (2) with a row (5R) of crown blocks (5b) divided by crown axial grooves (8), two rows (6R) of middle blocks (6b) divided by middle axial grooves (9), and two rows (7R) of shoulder blocks (7b) divided by shoulder axial grooves (10), Each of the crown axial grooves (8) is circumferentially aligned with one of the middle axial grooves (9) such that the crown axial groove (8) is positioned within a middle-axial-groove range (Mc) defined between 1st and 2nd axial straight lines (Za and Zb) which are drawn passing through 1st and 2nd extreme circumferential end points (9a and 9b) of the middle axial groove (9), respectively. The circumferential length of the middle-axial-groove range (Mc) is not less than 25% but not more than 50% of a pitch length (P) defined between the two 1st extreme circumferential end points (9a and 9a). The middle-axial-groove range (Mc) does not overlap with any of the shoulder axial grooves (10).

Abstract translation: 一种设置在所述胎面部分（2）中的胎冠（5R）的轮胎（5R）由冠形轴向槽（8）分隔的两排（6R），中间块（6b）分为中间轴向 沟槽（9）和由肩部轴向槽（10）分开的两排（7R）的肩部块（7b），每个胎冠轴向槽（8）与一个中间轴向槽（9）周向对齐，使得 冠部轴向槽（8）位于通过第一和第二极端圆周端点（9a和9b）的第一和第二轴向直线（Za和Zb）之间限定的中间轴向槽范围（Mc）内， 的中间轴向槽（9）。 中间轴槽范围（Mc）的圆周长度不小于在两个第一极端圆周端点（9a和9a）之间限定的节距长度（P）的25％但不大于50％。 中间轴槽（Mc）不与任何一个肩部轴向槽（10）重叠。

公开(公告)号：US20110308680A1

公开(公告)日：2011-12-22

申请号：US13153962

申请日：2011-06-06

Applicant: Kazuki NUMATA

Inventor： Kazuki NUMATA

IPC: B60C11/117

CPC classification number: B60C11/0318 ,  B60C11/0302 ,  B60C11/12 ,  B60C11/1625

Abstract: A pneumatic tire provided with a tread pattern, wherein a tread half which is one half of the tread pattern on each side of the tire equator is made up of repeat design units arranged circumferentially of the tire. The repeat design units have at least two different circumferential pitch lengths, and the repeat design units are each provided with at least one stud hole.

Abstract translation: 一种设置有胎面花纹的充气轮胎，其特征在于，轮胎赤道的两侧的胎面花纹的一半的胎面半部由轮胎周向配置的重复设计单元构成。 重复设计单元具有至少两个不同的圆周间距长度，并且重复设计单元各自设置有至少一个螺柱孔。

公开(公告)号：US20120261044A1

公开(公告)日：2012-10-18

申请号：US13444159

申请日：2012-04-11

Applicant: Kazuki NUMATA

Inventor： Kazuki NUMATA

IPC: B60C11/117

CPC classification number: B60C11/0304 ,  B60C11/04 ,  B60C11/11 ,  B60C2011/0346 ,  B60C2011/0353 ,  B60C2011/0365 ,  B60C2011/1209

Abstract: A pneumatic tire has an asymmetrical tread pattern. An outboard central main circumferential groove extends zigzag and is made up of alternate minor and major groove segments. The major groove segments incline at an angle of from 5 to 30 degrees with respect to the tire circumferential direction. An inboard central main circumferential groove is widest in main circumferential grooves. Outboard middle axial grooves are widest in axial grooves. The distance Li of the widthwise center line of the straight inboard central main circumferential groove from the tire equator is less than the distance Lo of the amplitude center line of the zigzag outboard central main circumferential groove from the tire equator.

Abstract translation: 充气轮胎具有不对称的胎面花纹。 外侧中央主圆周槽以锯齿形的方式延伸，并且由交替的小型和大型槽段构成。 主槽部分相对于轮胎周向以5度至30度的角度倾斜。 内侧中央主圆周槽在主圆周槽中最宽。 舷外中间轴向槽在轴向槽中最宽。 来自轮胎赤道的直内侧中央主圆周槽的宽度方向中心线的距离Li小于来自轮胎赤道的锯齿形外侧中心主圆周槽的振幅中心线的距离Lo。