Apparatus for measuring ground-contacting portion of tire tread

Details Apparatus for measuring ground-contacting portion of tire tread Apparatus for measuring ground-contacting portion of tire tread

1991-07-22

1992-12-29

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

356 71, B60C 1103, G01N 1702

Patent

active

051741512

ABSTRACT:
This invention discloses an apparatus for measuring the ground-contacting portion of tire tread wherein the tread of the tire is brought into pressure contact with one of the surfaces of a glass sheet into which rays of light are projected from the side edges of the glass sheet and the contact geometry of the tread of the tire with respect to the glass sheet is photographed by a camera from the other surface of the glass sheet. The tire is allowed to move in parallel with the glass surface while rolling along the glass surface and the camera is moved parallel in the same direction as the tire in synchronism with the movement of the tire.

REFERENCES:
patent: 4095464 (1978-06-01), Breedijk
patent: 5088321 (1992-02-01), Kajikawa et al.
patent: 5092166 (1992-03-01), Wada et al.

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