| 摘要 |
<p>The invention relates to a foldable tyre for a passenger vehicle, comprising at least one casing ply and at least one inextensible bracing ply radially inside a tread (2), two bead fillers (4) and two sidewalls (3), said bead fillers (4) including a bead wire defining , in a completely stress- free state , a mean line forming a substantially circular closed curve in a circumferential plane. The bead wire of each bead filler is flexible, and once the tyre has been folded , the mean line of the bead wire simultaneously defines a first curvature and a second curvature (5 , 6) that are interconnected by a third connecting curvature (7), the projection of said first, second and third curvatures of the folded tyre in an axial plane defining the two- dimensional volume of the folded tyre by a total perimeter P =[3x(2H+A)] H being the height of the sidewall and A being the width of the tyre. The invention also relates to a folding method.</p> |
