| 摘要 |
A circumferentially extending rib member (56) protrudes radially outwardly from the annular base region (42) of the carcass of a closed torus tire (10) to the same extent as the roll-restraining hoop portions (44,46) of the carcass. The roll-restraining hoop portions and the radially outwardly protruding rib member act in concert as a runflat device in the event that the tire becomes uninflated during use. |
