| 摘要 |
A tire comprising a carcass reinforcement (2) surmounted radially on the outside by a crown reinforcement (3), itself radially on the inside of a tread (4) having two axially outermost ends. The crown reinforcement (3) has a layer of reinforcing elements. The tread is connected to two beads (5) by two sidewalls (6), each bead (5) comprising at least one circumferential reinforcing element. Sidewalls (6) comprise, on their exterior surface, a series of protuberances (8) alternating with voids (9). The tread (4) comprises, at least at one axially outermost end (4a), a circumferential groove (10), wherein each protuberance (8) is positioned at the surface of a sidewall, the different protuberances being arranged regularly or irregularly and continuously between a point A and a point E, and wherein at least one protuberance (8) partially or completely interrupts or does not interrupt the circumferential groove (10). |
| 主权项 |
1. A tire for a rolling assembly comprising a rim and a tire, the said tire comprising at least one carcass reinforcement surmounted radially on the outside by a crown reinforcement, itself radially on the inside of a tread having two axially outermost ends, said crown reinforcement being made up of at least one layer of reinforcing elements, said tread being connected to two beads by two sidewalls, the said beads being intended to come into contact with a rim having rim flange tops, each bead comprising at least one circumferential reinforcing element, said sidewalls comprising, on their exterior surface, a series of protuberances alternating with voids, the said tread comprising, at least at one axially outermost end, a circumferential groove, wherein each said protuberance is positioned at the surface of the sidewall, said protuberances being arranged regularly or irregularly and continuously between a point A and a point E,
said point A being arranged at the intersection of the radially exterior surface of the tread and of the sidewall, with a radial axis ZZ′ distant from the equatorial plane AA′ by a length LA of between ½ (L-60 mm) and ½ (L-10 mm), L being the external section width, and said point E being arranged at a radius in the range: R2<E<(0.75 R1+0.25 R2), R2 being the radius at the top of the rim flange and R1 being the radius at the external section width—(interval I), or in the range 0.95 R1<E<(0.75 RA+0.25 R1), R1 being the radius at the external section width and RA being the radius at the point A (interval II), and wherein at least one protuberance partially or completely interrupts or does not interrupt the said circumferential groove. |
