公开(公告)号：US09895939B2

公开(公告)日：2018-02-20

申请号：US14238072

申请日：2012-10-05

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Susumu Tanaka

IPC: B60C17/00 ,  B60C3/06 ,  B60C19/00 ,  B60C13/00

CPC classification number: B60C17/0009 ,  B60C3/06 ,  B60C19/001 ,  B60C2013/007 ,  B60C2017/0063 ,  B60C2017/0072 ,  Y10T29/49494 ,  Y10T152/10504

Abstract: A run-flat tire 1 comprises a carcass 6, a pair of side reinforcing rubber layers 9, and a pair of sidewall rubber components 10. At a tire maximum-width position, a first side reinforcing rubber layer 9A disposed in the side of a first bead portion has a thickness B1 greater than a thickness B2 of a second side reinforcing rubber layer disposed in the side of a second bead portion, and a first sidewall rubber component disposed in the side of the first bead portion has a thickness A1 smaller than a thickness A2 of a second sidewall rubber component disposed in the side of the second bead portion.

公开(公告)号：US09604501B2

公开(公告)日：2017-03-28

申请号：US14204328

申请日：2014-03-11

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Susumu Tanaka

IPC: B60C9/18 ,  B60C9/22 ,  B60C9/28 ,  B60C9/30 ,  B60C9/20

CPC classification number: B60C9/18 ,  B60C9/2009 ,  B60C9/30 ,  B60C11/0304 ,  B60C11/033 ,  B60C2009/2223 ,  B60C2009/2233 ,  B60C2009/2295 ,  Y10T152/10801

Abstract: A pneumatic tire whose mounting location on a vehicle is specified and which comprises a belt disposed radially outside the carcass and composed of belt cords laid at an angle of from 15 to 40 degrees with respect to the tire circumferential direction, and a band disposed radially outside the belt and composed of first and second band cords laid at an angle of not more than 5 degrees with respect to the tire circumferential direction. The band comprises an inboard first part composed of the first band cord having a first modulus M1, and an outboard second part composed of the second band cord having a second modulus M2 more than the first modulus M1. The number of laminated plies of the band in the inboard first part is more than the number of laminated plies or a single ply of the band in the outboard second part.

公开(公告)号：US09302547B2

公开(公告)日：2016-04-05

申请号：US13958084

申请日：2013-08-02

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Susumu Tanaka

IPC: B60C11/04 ,  B60C11/12 ,  B60C11/03

CPC classification number: B60C11/0304 ,  B60C11/03 ,  B60C11/0306 ,  B60C2011/0341 ,  B60C2011/0344 ,  B60C2011/0353 ,  B60C2011/036 ,  B60C2011/0365 ,  B60C2011/0372 ,  B60C2011/0381 ,  B60C2011/0386 ,  B60C2011/039 ,  B60C2011/0395 ,  B60C2011/1254

Abstract: A pneumatic tire comprises a tread portion divided by three circumferentially continuously extending main grooves into two crown land portions and two shoulder land portions. The axial width W2 of the shoulder land portion is 1.15 to 2.0 times the axial width W1 of the crown land portion. Crown axial grooves disposed in the crown land portions have a groove width of at most 2 mm and are inclined to the opposite direction to the inclining direction of the radially outermost belt ply cords. Shoulder axial grooves disposed in the shoulder land portions are inclined to the same direction as the inclining direction of the radially outermost belt ply cords. Each of the shoulder axial grooves is not connected to the main groove or alternatively connected to the main groove through a narrow part having a width of 1.2 mm or less.

Abstract translation: 一种充气轮胎，其特征在于，包括：胎面部，其由三个周向连续延伸的主槽分割成两个胎冠部和两个胎肩部。 胎肩接地部的轴向宽度W2为胎冠部的轴向宽度W1的1.15〜2.0倍。 设置在胎冠部分中的冠部轴向槽具有至多2mm的槽宽度，并且沿与径向最外侧的带束帘布层帘线帘线的倾斜方向相反的方向倾斜。 设置在胎肩接地部的肩部轴向槽沿与径向最外侧带束帘布帘线的倾斜方向相同的方向倾斜。 每个胎肩轴向槽不连接到主槽，或者通过宽度为1.2mm或更小的窄部分交替地连接到主槽。