Apparatus for measuring the ground contacting portion of tire tr

Details Apparatus for measuring the ground contacting portion of tire tr Apparatus for measuring the ground contacting portion of tire tr

1991-07-22

1992-12-22

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

25022711, G01M 1702

Patent

active

051725908

ABSTRACT:
An illuminating device is arranged along the side edges of a glass plate to illuminate the interior of the glass plate. The tire tread is pressed against one of surfaces of the glass plate. A camera is used to photograph from the other surface of the glass plate the ground-contacting geometry of the tire tread in contact with the glass plate. The illuminating device consists of condenser lenses facing the side edges of the glass plate, a light source and optical fiber cables connecting the converging lenses with the light source.

REFERENCES:
patent: 5088321 (1992-02-01), Kajikawa et al.
patent: 5092166 (1992-03-01), Wada et al.

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