B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/124
B60C 11/11 (2006.01) B60C 11/12 (2006.01)
Patent
CA 2038194
ABSTRACT OF THE DISCLOSURE SIPES FOR TIRE TREADS A winter type tire tread (11) comprises a plurality of grooves defining a repetitive pattern of elastomeric blocks (15), said elastomeric blocks being provided with a first and a second series of sipes, the first series (22) entering the footprint (16) of the tire before the second series (23), the second series leaving the footprint of the tire after the first series. At least 50% and preferably at least 70% of the first series of sipes (22) form with the front edge (17) of the footprint, when entering the footprint (16), an angle of at most 40°. At least 50% and preferable at least 70% of the second series of sipes (23) form with the rear edge (18) an angle of at least 50°.
Sim & Mcburney
The Goodyear Tire & Rubber Company
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