Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1992-09-28
1994-05-24
Chilcot, Jr., Richard E.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
731462, E01C 2300, G01M 1702
Patent
active
053138279
ABSTRACT:
In a method and apparatus for detecting ply defects in a pneumatic tire, measurements on the tire are obtained at two levels of tire inflation, and the data obtained in the two measurements are compared. Broken reinforcement cords in the tire cause changes in the peaks of the data obtained at the two inflations that are out of proportion when compared to data changes observed in non-damaged tires. The apparatus of the invention provides means for inflating tires to predetermined pressures and has displacement sensors for measuring peaks and valleys in the sidewall of a tire. The apparatus may also include a computer for collecting data, analyzing data, and providing a signal when a defective tire is recognized.
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Chilcot Jr. Richard E.
Oen William L.
The Goodyear Tire & Rubber Company
Wheeler David E.
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