| 摘要 |
<p>A tire (10) comprises two sidewalls (40), two opposing bead portions (14), and a reinforcement ply (12) anchored in each bead portion (14). Each bead portion (14) has a profile that has an axially outer end closer to the axis of rotation of the tire (10) than the axially inner end thereof, a bead ring (24) and a rubber component (26), wherein in each bead portion (14) the reinforcement ply (12) has a downturn portion (12a) and a turn-up portion (30), and wherein the turn-up portion (30) passes radially inward and at least partially around the bead ring (24) and terminates at a terminal end (32). The terminal end (32) is located within the range of from the radially innermost portion of the bead portion (14) to a radial distance, as measured from the radially outermost location of the bead ring (24) to the terminal end (32), of two radial bead ring diameters and/or the downturn portion (12a) is located axially inward of the rubber component (26) and the terminal end (32) is axially spaced from the downturn portion (12a) an axial distance which is at least 80% of the axial bead ring diameter.</p> |
