公开(公告)号：US09889712B2

公开(公告)日：2018-02-13

申请号：US14701920

申请日：2015-05-01

Applicant: SUMITOMO RUBBER INDUSTRIES LTD.

Inventor： Naoya Nagahara ,  Junichi Nagata ,  Kiyotaka Ueyama ,  Yoshihiro Hada ,  Hiroshi Okagawa

IPC: B60C15/02 ,  B60C15/024 ,  B60C17/00 ,  B60C5/00 ,  B60C15/06

CPC classification number: B60C17/0009 ,  B60C5/00 ,  B60C15/024 ,  B60C15/0603 ,  B60C2015/0614 ,  Y10T152/10828

Abstract: A pneumatic tire includes a tread, a pair of sidewalls extending from edges of the tread substantially in a radially inward direction, a pair of clinches extending from edges of the sidewalls substantially in the radially inward direction, a pair of beads positioned on axially inner sides of the clinches, and a carcass extending along an inner side of the tread and sidewalls such that the carcass is bridging the pair of beads. Each bead includes a fitting portion extending in a circumferential direction and formed to be fitted to a rim, the fitting portion has a bottom surface positioned on a radially inner side of the fitting portion and a side surface positioned on an axially outer side of the fitting portion, the bottom surface includes a heel on the axially outer side of the fitting portion, and the side surface includes a concave extending in the circumferential direction.