Resilient tires and wheels – Tires – resilient – With wear indicating feature
Patent
1991-09-30
1994-04-19
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
With wear indicating feature
152197, 1561101, B60C 1900
Patent
active
053037561
ABSTRACT:
A belted tire including carcass, which is formed by a plurality of body plies, and tread rubber vulcanized to the plies. A plurality of circumferentially spaced apart wear indicating members are secured to the tire carcass, preferably between two plies, but optionally to any single ply. The wear indicating members extend radially outward from the carcass to a desired wear-indicating position, which may be beyond the base of adjacent tire grooves or at other radial levels. The wear indicating member includes a housing assembly containing a visually distinctive material which is visually perceptible from the color of the tire tread. The housing assembly thermally insulates the visually distinctive material sufficiently during vulcanization of the tire to prevent thermal degradation of the wear-indicating material. Optionally, the housings can be solid metallic pins which also provide a shiny visually perceptible wear-indicating material. As the tread rubber wears down, the visually distinctive wear-indicating material is exposed.
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Ball Michael W.
Krawczyk Nancy T.
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