| 摘要 |
<p>A tire adapted for continued mobility in a substantially deflated condition comprises a carcass structure (5)anchored in each side of the tire in a bead (1) and runflat inserts (9) provided in the axially inner portion of the sidewalls (13), at least one of inserts (9) comprising two zones, an axially outer zone (11), having a volume Vo, occupied by an outer zone elastomeric material, and an axially inner zone (10), having a volume Vi, occupied by an inner zone elastomeric material, the inner zone elastomeric material having a lower modulus of extension ME10 than the outer zone elastomeric material, wherein the inner zone volume Vi is substantially smaller than the outer zone volume Vo such that the volume ratio between Vi and Vo is substantially between 1/15 and 1/25.</p> |
