| 摘要 |
A self-supporting tyre ( 1 ) has reinforcing structures at the beads ( 4 ) defining rest surfaces ( 4 a) for a corresponding rim ( 1 a) which have a profile converging towards the tyre rotation axis away from the equatorial plane (X-X) of the tyre itself. The carcass plies ( 3 a, 3 b) are each made by sequential deposition of strip-like sections circumferentially distributed on a toroidal support ( 11 ). Elastic-support inserts ( 16, 21 ) are interposed between the side portions ( 13 a, 14 a) of axially internal sections ( 13 ), axial intermediate sections ( 15 ). In this manner around at least one of said support inserts opening degree of which can be modulated depending on requirements, by modifying the land/empty space ratio determined by the distance existing between the side portions ( 13 a, 14 a, 15 a) of the strip-like sections ( 13, 14, 15 ) covering each of the axially opposite sides of the support insert itself. |
