B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 11/117 (2006.01) B60C 11/00 (2006.01) B60C 11/01 (2006.01)
Patent
CA 2159236
A new pneumatic radial ply truck tire 10 for use on steering axles is disclosed. The tire 10 has a 20 tread having a plurality of circumferentially continuous grooves 22, a pair of narrow circumferential decoupling grooves 24, a pair of radially recessed ribs 21, and a plurality of tread ribs 25,25A. The tread 20 has a radially outer tread surface 30 having a curvature defined by an internal radius of curvature Ri and an external radius of curvature Re, Re extending laterally over a majority of a shoulder rib 25A to the narrow decoupling groove 24 on at least one-half of the tread 20, preferably both tread halves. The shoulder rib 25A has a thickness (t) at the circumferential groove 22 which progressively increases to a thickness (t max) adjacent the narrow decoupling groove 24. The tread 20 exhibits a pressure distribution in the shoulder region which is complimentary to uniform wear.
Young Austin Gale
Young Deborah Lynn
Sim & Mcburney
The Goodyear Tire & Rubber Company
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