公开(公告)号：US20130087260A1

公开(公告)日：2013-04-11

申请号：US13611318

申请日：2012-09-12

Applicant: Yoshiyuki TOBINO

Inventor： Yoshiyuki TOBINO

IPC: B60C11/12

CPC classification number: B60C11/11 ,  B60C11/1236 ,  B60C11/1259 ,  B60C2011/0344 ,  B60C2011/0348 ,  B60C2011/0367 ,  B60C2011/1209 ,  B60C2011/1254 ,  B60C2011/1268 ,  B60C2011/129 ,  B60C2011/1295

Abstract: A pneumatic tire includes a tread portion including a plurality of land portions separated by at least two longitudinal grooves, a plurality of lateral grooves crossing the longitudinal groove to form a block row, at least one block having at least two sipes extending in an axial direction of the tire to divide at least three block-pieces which include an outer piece and an inner piece relatively arranged in circumferentially inner side of the block than the outer piece, wherein the total axial length of whole sipes is in a range of from 100 to 400 times a tread width, the outer piece of the block has a circumferential length larger than that of the inner piece of the block, and a ratio of the circumferential length of the outer piece to the circumferential length of the inner piece is greater than 1.0 and smaller than 3.0.

Abstract translation: 一种充气轮胎，包括：胎面部，其包括由至少两个纵向槽隔开的多个胎面部，多个横向槽，与所述纵向槽交叉形成块排;至少一个块，其具有沿轴向方向延伸的至少两个刀槽花纹; 的轮胎分割成至少三个块体，其包括相对于所述块体的周向内侧相对布置的外部件和内部件，其中整个刀槽花纹的总轴向长度在从100到 块的外侧片的周向长度大于块体的内部片的长度的400倍，并且外部件的周向长度与内部件的周向长度的比率大于1.0 小于3.0。

公开(公告)号：US20120118458A1

公开(公告)日：2012-05-17

申请号：US13282645

申请日：2011-10-27

Applicant: Yoshiyuki TOBINO

Inventor： Yoshiyuki TOBINO

IPC: B60C11/117 ,  B60C11/13

CPC classification number: B60C11/11 ,  B60C11/12 ,  B60C2011/1209 ,  B60C2011/1295 ,  B60C2200/06 ,  Y10S152/03 ,  Y10S152/902

Abstract: A heavy duty pneumatic tire comprises a tread portion provided with circumferentially continuous main grooves and lateral grooves to form blocks in circumferential rows. The main grooves include a pair of shoulder main grooves disposed one on each side of the tire equator so that the center line thereof is at a distance of 0.30 to 0.65 times one half of the tread width from the tire equator. The blocks include crown blocks disposed in a tread crown region between the shoulder main grooves, and shoulder blocks disposed in shoulder regions axially outside the shoulder main grooves. Each of the crown blocks and shoulder blocks is provided with at least one axially extending sipe.

Abstract translation: 重型充气轮胎包括设置有周向连续的主槽和横向槽的胎面部，以形成圆周排中的块。 主槽包括一对在轮胎赤道的每一侧上设置的肩部主槽，使得其中心线距轮胎赤道的胎面宽度的一半的距离为0.30至0.65倍。 这些块包括设置在肩部主槽之间的胎面胎面区域中的冠状块和设置在肩部主沟槽的轴向外侧的肩部区域中的肩部块。 每个胎冠块和胎肩块设置有至少一个轴向延伸的刀槽花纹。