Tire with composite ply structure
AssigneeThe Goodyear Tire & Rubber Company
InventorsJohn Janes Beck, Jr., Gary Edwin Tubb, John Ronald Abbott, Samuel Patrick Landers, Amit Prakash, Frederick Forbes Vannan, Jr., Henry David Broyles, Klaus Beer
Life of this patent
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Abstract
A tire 10 has a composite ply 40. The composite ply 40 has a primary ply 40A reinforced with parallel inextensible cords 41 and a pair of ply extensions 40B having synthetic cords. The method of manufacturing the tire 10 is described. The tire 10 can be made as a runflat type tire.
Claims25
A tire having a tread, a belt structure and a carcass radially inward of the tread and the belt structure, the carcass having a pair of bead portions each bead portion having an elastomeric apex and an inextensible bead core, the carcass comprising:
- at least one composite ply structure radially inward of the belt structure and extending from and wrapping about each bead core, the at least one composite ply structure having a primary ply reinforced parallel cords having a modulus E of X or greater, the cords being radially extending and substantially inextensible, extending from bead portion to bead portion, and a pair of ply extensions reinforced by flexible cords, the ply extensions being overlappingly joined to the primary ply and wrapping around the bead core and elastomeric apex and extending radially outwardly;
- and
- a pair of sidewall structures, each extending radially inwardly from the tread each sidewall has at least one first insert radially inward of the at least one composite ply, a second insert, and a second ply being interposed between the first insert and the second insert and spaced from the at least one composite ply by the second insert, the second ply being reinforced by radial cords, the cords having a modulus E different from the cords of primary ply of the at least one composite ply structure.
Dependencies are inferred from the claim text.