Inextensible high temperature resistant tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsZhibin Zhang, Thomas Reed Oare, Amit Prakash
Life of this patent
Estimating the term…
Abstract
A runflat radial ply passenger or light truck pneumatic tire 10 has a carcass 30 reinforced with at least one sidewall insert or filler 42 and one substantially inextensible cord reinforced ply 38, the ply being wrapped about two bead cores 26 and located radially inward of a belt reinforcing structure 36. The sidewall insert or filler 42 is located radially inward of the ply 38. The cord 43 has a minimum modulus E of 10 Gpa and is generally inextensible and less heat sensitive than conventional synthetic cords used in passenger and light truck tires. In one embodiment the ply cords 43 are aramid in another embodiment the cords 43 are steel
Claims10
A tire having a tread, a belt structure and a carcass radially inward of the tread and the belt structure, the carcass comprising:
- one ply reinforced with substantially inextensible cords having a minimum modulus E of 10 GPa, the ply having a pair of turnup ends wrapped around a pair of inextensible bead cores, the carcass having a pair of sidewall structures and in each sidewall structure the carcass has a runflat insert radially inward of the ply and an elastomeric bead filler runflat insert radially above each bead core and located between the one ply and the turnup ends, the filler extending from each bead core radially outward in proximity to the belt structure, wherein the turnup ends extend radially outward to a terminal end lying under the belt structure.
Dependencies are inferred from the claim text.