公开(公告)号：US20120067486A1

公开(公告)日：2012-03-22

申请号：US13322871

申请日：2010-05-28

Applicant: Keita Yumii ,  Hiraki Iwasa

Inventor： Keita Yumii ,  Hiraki Iwasa

IPC: B60C17/04

CPC classification number: B60C11/01 ,  B60C9/20 ,  B60C11/032 ,  B60C17/0009 ,  B60C2011/013 ,  B60C2011/0381 ,  Y10S152/03

Abstract: Provided is a run-flat tire having a substantially-crescent-shaped cross section, which makes it possible to achieve both durability at the time of run-flat travel and ride comfort at the time of travel at a normal inner pressure.A rigidity reducing portion 20 that reduces a tire rigidity in the width direction extends in the circumferential direction on a surface of a tread rubber 1 in an area located on the inner side than an end 5a of a belt in the tire width direction and on the outer side than a road-contacting end 15 in the tire width direction under a 75% load state.

Abstract translation: 本发明提供一种具有大致月牙形横截面的漏气保用轮胎，能够实现平行行驶时的耐久性和在正常内压下行驶时的乘坐舒适性。 减小宽度方向的轮胎刚性的刚性减小部20在轮胎宽度方向上位于内侧的区域中的胎面橡胶1的表面上沿着带的端部5a在周向上延伸，并且在 在75％负载状态下，在轮胎宽度方向上的公路接触端15的外侧。

公开(公告)号：US08851129B2

公开(公告)日：2014-10-07

申请号：US13322871

申请日：2010-05-28

Applicant: Keita Yumii ,  Hiraki Iwasa

Inventor： Keita Yumii ,  Hiraki Iwasa

IPC: B60C17/00 ,  B60C11/01 ,  B60C11/117 ,  B60C9/20 ,  B60C11/03

CPC classification number: B60C11/01 ,  B60C9/20 ,  B60C11/032 ,  B60C17/0009 ,  B60C2011/013 ,  B60C2011/0381 ,  Y10S152/03

Abstract: Provided is a run-flat tire having a substantially-crescent-shaped cross section, which makes it possible to achieve both durability at the time of run-flat travel and ride comfort at the time of travel at a normal inner pressure. A rigidity reducing portion that reduces a tire rigidity in the width direction extends in the circumferential direction on a surface of a tread rubber in an area located on the inner side than an end of a belt in the tire width direction and on the outer side than a road-contacting end in the tire width direction under a 75% load state.

Abstract translation: 本发明提供一种具有大致月牙形横截面的漏气保用轮胎，能够实现平行行驶时的耐久性和在正常内压下行驶时的乘坐舒适性。 减小宽度方向的轮胎刚性的刚性减小部在胎体橡胶的位于比轮胎宽度方向的带的端部的内侧的区域的外周侧的外周侧的周方向延伸， 在75％负载状态下在轮胎宽度方向上的路面接触端。