公开(公告)号：US20140311650A1

公开(公告)日：2014-10-23

申请号：US14354050

申请日：2012-10-19

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Naoki Sugiyama ,  Makoto Ohkoshi ,  Hiroki Takahashi

IPC: B60C15/06 ,  B60C15/00

CPC classification number: B60C15/0628 ,  B60C15/0009 ,  B60C15/024 ,  B60C15/0607 ,  B60C15/0635 ,  B60C2015/009 ,  B60C2015/0614 ,  B60C2015/0621 ,  B60C2015/0625 ,  B60C2200/06 ,  Y10T152/10828

Abstract: A tire (1) includes: a tread (2); a pair of sidewalls (3) that extends almost inward, in a radial direction, from ends of the tread (2); a pair of beads (4) positioned almost inward of the sidewalls (3) in the radial direction; and a clinch portion (5) that extends from the sidewalls (3) to the beads (4), wherein a concave curved surface (21) extends on an outer surface of the clinch portion (5) in a circumferential direction, and a convex curved surface (22) formed on an outer side end, in the radial direction, of a rim flange (30) is engageable with the concave curved surface (21), a ratio R1/R of a radius of curvature R1 of the concave curved surface (21) to a radius of curvature R of the convex curved surface (22) of the rim flange, satisfies 1.7≦R1/R≦2.5, and the radius of curvature R1 of the concave curved surface (21) and the radius of curvature R of the convex curved surface (22) are each a radius of curvature of an arc on a cross section as taken along a plane including a center axis of the tire.

Abstract translation: 轮胎（1）包括：胎面（2）; 从胎面（2）的端部沿径向几乎向内延伸的一对侧壁（3）; 在径向方向上几乎位于侧壁（3）的内侧的一对珠（4）; 以及从所述侧壁（3）延伸到所述胎圈（4）的夹紧部（5），其中，凹形弯曲面（21）在所述夹紧部（5）的外周面上沿圆周方向延伸， 形成在轮辋凸缘（30）的径向外侧端部的曲面（22）能够与凹曲面（21）接合，凹曲面的曲率半径R1的比率R1 / R 表面（21）与轮辋凸缘的凸曲面（22）的曲率半径R成为1.7＆lt; N1; R1 / R＆nlE; 2.5，凹曲面（21）的曲率半径R1和半径 凸曲面（22）的曲率半径R是沿着包括轮胎的中心轴的平面截取的截面上的弧的曲率半径。

公开(公告)号：US09975385B2

公开(公告)日：2018-05-22

申请号：US14354050

申请日：2012-10-19

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Naoki Sugiyama ,  Makoto Ohkoshi ,  Hiroki Takahashi

IPC: B60C15/02 ,  B60C15/06 ,  B60C15/024 ,  B60C15/00

CPC classification number: B60C15/0628 ,  B60C15/0009 ,  B60C15/024 ,  B60C15/0607 ,  B60C15/0635 ,  B60C2015/009 ,  B60C2015/0614 ,  B60C2015/0621 ,  B60C2015/0625 ,  B60C2200/06 ,  Y10T152/10828

Abstract: Tire including: a tread; a pair of sidewalls extending substantially inward radially from ends of the tread; a pair of beads positioned substantially radially inwardly of the sidewalls; and a clinch portion extending from the sidewalls to the beads. A concave curved surface extends on an outer surface of the clinch portion in a circumferential direction. A convex curved surface formed on a radially outer side end of a rim flange is engageable with the concave curved surface. A ratio R1/R of curvature radius R1 of the concave curved surface to a curvature radius R of the convex curved surface of the rim flange satisfies 1.7≤R1/R≤2.5. The curvature radii R1 and R of the concave and convex curved surfaces, respectively, are each a radius of curvature of an arc on a cross-section taken along a plane including a tire center axis.