公开(公告)号：US3610308A

公开(公告)日：1971-10-05

申请号：US3610308D

申请日：1969-10-02

Applicant: FIRESTONE TIRE & RUBBER CO

Inventor： MCDONALD PETER

IPC: B60C15/02 ,  B60C17/06 ,  B60C17/04

CPC classification number: B60C17/06 ,  B60C15/0203 ,  B60C17/009 ,  B60C17/10 ,  Y10T152/10738

Abstract: This disclosure relates to a tire construction which gives an improvement in the run flat characteristics of the tire construction described and claimed in U.S. Pat. No. 3,392,772 and, therefore, an improvement in the safety features of the tire. This improved construction comprises locating an annular safety rib member radially outwardly of and in substantially the same radial plane as each bead and rim flange area in the tire described in U.S. Pat. No. 3,392,772; these safety rib ring members may be either cured integrally with the tire or may be cured as a separate ring and then cemented to the proper locations on the inner surface of the separately cured tire.