Pneumatic tire having an asymmetric tread profile

Details Pneumatic tire having an asymmetric tread profile Pneumatic tire having an asymmetric tread profile

B - Operations, Transporting

60

C

B60C 3/06 (2006.01) B60C 11/00 (2006.01)

Patent

CA 2633143

A tire having (i) an asymmetric tread profile with a shoulder drop difference of from 0.3 to 0.9; and (ii) an asymmetric tread pattern so as to have a ratio between the inner void/solid ratio and the outer void/solid ratio of from 1.1 to 1.50. By the above combination of features, handling and aquaplaning performance is remarkably improved even at high operating speeds without negatively affecting the wear resistance of the tread band.

L'invention concerne un pneu présentant (i) un profil de bande de roulement asymétrique avec un écart au niveau de la chute de l'épaulement compris entre 0,3 et 0,9 et (ii) un dessin de bande de roulement asymétrique possédant un rapport entre reliefs et creux internes et externes compris entre 1,1 et 1,50. Ces caractéristiques permettent d'améliorer sensiblement la tenue de route et les performances du véhicule dans des situations d'aquaplaning, y compris à des vitesses élevées, sans affecter négativement la résistance à l'usure de la bande de roulement du pneu.

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