| 摘要 |
<p>The invention concerns a tyre designed to be mounted on a rim whereof the edges comprise round-shaped rim attachments, including at least two beads (3) and a reinforced casing (1) formed by at least one ply of reinforcing elements. Each bead (3) is coreless and said reinforced casing (1) has in each bead (3) a curved meridian profile viewed axially and radially inwards from outwards to form an axially inner ridge located in an angle α opening axially and radially inwards, said reinforced casing (1) being in each bead (3) reinforced at least radially outward and axially inward, by at least a first additional continuous layer (6), formed with inextensible circumferential reinforcing elements, and by at least a second continuous additional layer (7), formed with inextensible radial reinforcing elements, the two additional layers having profiles substantially parallel to the meridian profile of the reinforced casing in the bead.</p> |
