Tire treads

Details Tire treads Tire treads

B - Operations, Transporting

60

C

152/124

B60C 11/04 (2006.01) B60C 11/11 (2006.01)

Patent

CA 2039344

ABSTRACT OF THE DISCLOSURE TIRE TREADS The tire treads (11) comprise an uneven number of axially spaced straight grooves (400-404) which extend circumferentially about the tire (10), the center groove (402) having its centerline on the equatorial plane (EP), and a plurality of circumferentially spaced laterally extending grooves (430-435), the axially innermost grooves (431-434) forming with the equatorial plane an angle comprised between 30° and 60°, the two axially outermost grooves (430, 435) forming with the equatorial plane an angle comprised between 60° and 80°. The circumferentially and laterally extending grooves define rows of land portions having the shape of a large parallelogram adjacent to a small parallelogram. The small parallelogram has one of his small sides in the continuation of one of the sides of the large parallelogram delimiting a circumferentially extending groove (400-404). The length of the small side of the small parallelogram is changed in order to modify the performance characteristics of the tire.

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