Apparatus and method for observing the ground contact patch of a

Details Apparatus and method for observing the ground contact patch of a Apparatus and method for observing the ground contact patch of a

1990-10-26

1992-02-18

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

356 71, G01M 1702

Patent

active

050883216

ABSTRACT:
An apparatus and method in which light from source is kept within a transparent moving roadway and a tire tread is pressed onto one surface of the roadway. The ground contact patch of the tire is observed from the opposite side, and the ground contact area and the non-ground contact area of the tire tread is distinguished clearly. The dynamic behaviour of the ground contact patch of the rotating tire roadway can be observed by means of a camera unit. The information obtained can be utilized for tire design to improve tire performance.

REFERENCES:
patent: 3865488 (1975-02-01), Del Rio
patent: 3878712 (1975-04-01), Chapin
patent: 4331030 (1982-05-01), Webster
Spinner, "An Apparatus for Determining the Actual Footprint Area of Tires", Material Research and Standards, vol. 10, No. 2, pp. 20-23, Feb. 1970.

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