公开(公告)号：US10315466B2

公开(公告)日：2019-06-11

申请号：US14887545

申请日：2015-10-20

Applicant: SUMITOMO RUBBER INDUSTRIES LTD.

Inventor： Kentaro Yagyu ,  Naoki Yukawa ,  Yasuo Mitarai ,  Yasuaki Kuniyasu

IPC: B60C13/02

Abstract: A pneumatic tire includes a side wall having a side surface and a roughened region formed on the side surface such that the roughened region is extending in circumferential direction. The roughened region includes lands and dimples formed between adjacent lands, the lands include first lands and second lands formed such that the first and second lands are alternately arrayed in the circumferential direction and the first and second lands are inclined relative to radial direction in opposite inclination directions, and the roughened region is formed such that when the tire is mounted on a normal rim and filled with air at normal inflation pressure, the roughened region has an outer periphery formed on radially inner side of position 30 mm away in radially inward direction from tire maximum-width position, and the roughened region has an inner periphery formed on radially outer side of radially outer edge of the rim.

公开(公告)号：US11590802B2

公开(公告)日：2023-02-28

申请号：US16926999

申请日：2020-07-13

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Yuma Watanabe ,  Yasuaki Kuniyasu

IPC: B60C15/06 ,  B60C9/08 ,  B60C9/02

Abstract: A pneumatic tire comprises: a bead portion provided with an inside bead apex rubber disposed between a turned up portion and a main portion of a carcass ply, and an outside bead apex rubber disposed axially outside the turned up portion and having a radially outer edge; and a the sidewall portion provided with a sidewall reinforcing cord layer disposed axially outside the carcass and having a radially inner edge which is spaced apart from the radially outer edge of the outside bead apex rubber by a radial distance of not less than 5% of a tire section height.

公开(公告)号：US10759233B2

公开(公告)日：2020-09-01

申请号：US15508682

申请日：2015-09-03

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadao Matsumoto ,  Yasutaka Iwata ,  Kentaro Yagyu ,  Fumikazu Yamashita ,  Shingo Umekita ,  Yasuaki Kuniyasu ,  Hiroaki Ninomiya

IPC: B60C15/06 ,  B60C15/00 ,  B60C9/22 ,  B29D30/72 ,  B29D30/48

Abstract: In the tire 2, fillers 10 are layered over clinches 8 in portions outward of a carcass 14 in the axial direction. A carcass ply 50 is turned up around cores 44. Turned-up portions 50a are disposed between the fillers 10 and apexes 46. Each clinch 8 has a maximum thickness Tcx that is measured along a line normal to an inner surface, in the axial direction, of the clinch 8. A ratio of a thickness Tf1 of the filler 10 to a sum of the thickness Tf1 and the thickness Tcx is greater than or equal to 0.1 and not greater than 0.6. A percentage of a complex elastic modulus E*f of the filler 10 relative to a complex elastic modulus E*a of the apex 46 is greater than or equal to 70% and not greater than 125%.

公开(公告)号：US20160107488A1

公开(公告)日：2016-04-21

申请号：US14887545

申请日：2015-10-20

Applicant: SUMITOMO RUBBER INDUSTRIES LTD.

Inventor： Kentaro Yagyu ,  Naoki Yukawa ,  Yasuo Mitarai ,  Yasuaki Kuniyasu

IPC: B60C13/02

CPC classification number: B60C13/02

Abstract: A pneumatic tire includes a side wall having a side surface and a roughened region formed on the side surface such that the roughened region is extending in circumferential direction. The roughened region includes lands and dimples formed between adjacent lands, the lands include first lands and second lands formed such that the first and second lands are alternately arrayed in the circumferential direction and the first and second lands are inclined relative to radial direction in opposite inclination directions, and the roughened region is formed such that when the tire is mounted on a normal rim and filled with air at normal inflation pressure, the roughened region has an outer periphery formed on radially inner side of position 30 mm away in radially inward direction from tire maximum-width position, and the roughened region has an inner periphery formed on radially outer side of radially outer edge of the rim.

Abstract translation: 充气轮胎包括具有侧表面的侧壁和形成在侧表面上的粗糙区域，使得粗糙区域在圆周方向上延伸。 粗糙化区域包括在相邻焊盘之间形成的焊盘和凹坑，焊盘包括形成为第一焊盘和第二焊盘的第一焊盘和第二焊盘，使得第一焊盘和第二焊盘沿圆周方向交替排列，并且第一焊盘和第二焊盘相对于径向倾斜相反的倾斜 方向，并且粗糙区域形成为使得当轮胎安装在正常边缘上并且在正常充气压力下填充有空气时，粗糙区域具有形成在径向内侧的位置30mm的径向内侧的外周边， 轮胎最大宽度位置，并且粗糙区域具有形成在轮辋的径向外边缘的径向外侧上的内周边。