Pneumatic tire having tread wear detectors

Details Pneumatic tire having tread wear detectors Pneumatic tire having tread wear detectors

1998-07-13

2000-11-28

Oen, William

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

G01M 1702

Patent

active

061519596

ABSTRACT:
A method of foreseeing and controlling wearing in the tread of a tire based on the use of cuts of a limited depth (in the order of tenth parts of one millimeter) formed on the external surface of the tread, in the thickness of the elastomeric 7 material. The cut is preferably made by a laser beam. Rotation of the tire on a road or on any other friction surface enables both the uneven wearing of the tread, highlighted by localized spots devoid of cuts, to be quickly verified by inspecting the maintenance state of said cuts, and the wear rate of the tread, which can be drawn from calculation of the time elapsing between the disappearance of two groups of cuts of different depth.

REFERENCES:
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patent: 3535536 (1970-10-01), Pernay
patent: 4028937 (1977-06-01), Crano
patent: 4095464 (1978-06-01), Breedijk
patent: 4298046 (1981-11-01), Herbelleau et al.
patent: 4566514 (1986-01-01), Mauk et al.
patent: 4703788 (1987-11-01), Kusube et al.
patent: 5245867 (1993-09-01), Sube et al.
European Search Report, May 31, 1996.

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