Patent ID: 6758928
Filing Date: 2004-07-06
Classification: B60C

Abstract:
In a method of forming a pneumatic radial tire, a tire having a pair of annular beads or bead-like structures in association with a carcass ply, belt or breaker reinforcement disposed over a crown area of said carcass ply, tread disposed over said belt or breaker, and sidewalls disposed between said tread and said beads or bead-like structures, wherein the tread has an asymmetric profile having a peak spaced from the tread centerline,the improvement comprising determining a height P and location L of a peak using the formulas P=(sin CÂ·W)âˆ’(N/K) and L=Â½Wâˆ’(0.3P/sin C), wherein L is the distance in inches of Peak shift from the centerline, P is the maximum differential in inches in mold geometry from side to side, K is tire vertical spring rate, lbs/in, S is sidewall length, inches, W is tread width, inches, C is the average dynamic camber, degrees, and N is the normal load lbs; and forming said pneumatic radial tire with said peak having said height P and location L.