公开(公告)号：US20160272011A1

公开(公告)日：2016-09-22

申请号：US14916184

申请日：2014-08-21

Applicant: BRIDGESTONE CORPORATION

Inventor： Yutarou ONABE ,  Naoto ODA ,  Akane MIYOSHI

IPC: B60C11/03

CPC classification number: B60C11/0332 ,  B60C11/0304 ,  B60C11/1376 ,  B60C11/1392 ,  B60C2011/0341 ,  B60C2011/0381 ,  B60C2011/0386 ,  B60C2011/039

Abstract: A tread section is formed with plural circumferential direction main grooves extending around a tire circumferential direction, and is formed with a first rib and a second rib between the plural circumferential direction main grooves. The first rib and the second rib are formed with first arc shaped faces that have arc shapes about centers within the ribs. The first rib and the second rib are also formed with second arc shaped faces that are respectively formed continuously to the first arc shaped faces and that are have smaller radius of curvature than the first arc shaped faces.

Abstract translation: 胎面部形成有沿着轮胎周向延伸的多个周向主槽，并且在多个周向主槽之间形成有第一肋和第二肋。 第一肋和第二肋形成有第一弧形面，其具有围绕肋内的中心的弧形。 第一肋和第二肋也形成有分别与第一弧形面连续地形成并且具有比第一弧形面更小的曲率半径的第二弧形面。