Prediction of internal rib irregular wear via rib edge...

Details Prediction of internal rib irregular wear via rib edge... Prediction of internal rib irregular wear via rib edge...

2006-10-24

2006-10-24

McCall, Eric S. (Department: 2855)

Measuring and testing

Tire, tread or roadway

Reexamination Certificate

active

07124629

ABSTRACT:
The present invention relates to a method for predicting the propensity for a RMT steer tire to have irregular tire tread wear. The method comprises the steps of: providing a RMT steer tire to be tested; placing measurement points upon a ground engaging surface of selected circumferential tread ribs of the tread of the RMT tire; progressively rolling the RMT steer tire across a first planar side of a transparent plate whereby the progressive movement of a footprint image of the RMT steer tire is imposed upon the first planar side of the transparent plate; recording the progressive movement of the marked measurement points in the footprint image of the RMT steer tire imposed upon the first planar side of the transparent plate; determining the amount of lateral movement of each of the marked measurement points in the footprint image; and if any measurement points exhibit lateral movement beyond 0.060 inches, predicting that the RMT steer tire will have irregular tire tread wear.

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patent: 2005/0061069 (2005-03-01), Robert

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