| 摘要 |
A tyre (1) comprising a carcass (7) comprising at least two turned-up carcass layers (71, 72) and at least two non-turned-up carcass layers (73, 74), each turned-up carcass layer (71, 72) comprising a main part (711, 721) wrapped, within each bead (4), from the inside of the tyre toward the outside around a bead wire (8) of diameter D to form a turn-up (712, 722) of which the end (E1, E2) is positioned radially on the outside of the radially outermost point (E) of the bead wire (8) at a radial distance (a1, a2), each non-turned-up carcass layer (73, 74) having an end (E3, E4) positioned at a radial distance (b3, b4) from the radially outermost point (E) of the bead wire (8), the radial distance (a1, a2) between the end (E1, E2) of the turn-up (712, 722) of each turned-up carcass layer (71, 72) and the radially outermost point (E) of the bead wire (8) is at least equal to 0.5 times the section height H of the tyre, and the radial distance (b3, b4) between the end (E3, E4) of each non-turned-up carcass layer (73, 74) and the radially outermost point (E) of the bead wire (8) is at most equal to the diameter D of the bead wire (8). |
