Anisotropic tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsDennis S. Chrobak, Peter P. Roch
Life of this patent
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Abstract
A tire (10) is provided with a cast body (12). The cast body has an annular circumferentially extending isotropic portion (14) having a pair of anisotropic side portions (16,18) extending therefrom. The side portions are rendered anisotropic by geometric means. A reinforcing means (30) is attached to the inner or interior surface of the side portions and extends from the isotropic portion to a point radially inwardly of the maximum section width (SW) of the tire. The reinforcing means may include a number of alternating ridges and grooves (46,48). The body may be cast from an elastomeric material such as polyurethane. A tread (26) and belt package (28) is disposed over the body and may be either elastomeric or rubber.
Claims22
A tire comprising:
- an elastomeric cordless body having a circumferentially extending annular isotropic portion, a pair of anisotropic side portions, each extending radially inwardly from an axial edge of said annular isotropic portion to an isotropic bead portion, an inextensible bead ring disposed within each bead portion;
- a surface engaging tread portion disposed radially outwardly of said body;
- and
- a belt structure disposed between said body and said tread portion.
A tire comprising:
- a cordless elastomeric body;
- a surface engaging tread portion disposed radially outwardly of said body;
- a belt structure disposed between said body and said tread portion;
- said body having a circumferentially extending portion and a pair of sidewalls, each sidewall extending from said circumferentially extending portion to a bead portion having an inextensible bead ring therein and a reinforcing means attached to an inner surface of each said sidewall, said reinforcing means comprising a series of alternating ridges and grooves, and extending circumferentially along the inner surface of each sidewall and from a point radially inwardly from the maximum section width of the tire to an axial edge of the circumferentially extending portion, said axial edge being spaced a predetermined distance from the equatorial plane of the tire and equal to or axially inwardly thereof an axially outermost edge of the axially outermost belt ply of the belt structure.
Dependencies are inferred from the claim text.