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AssigneeThe Goodyear Tire & Rubber Company
InventorsMichael Stefan Skurich, Lisa Marie Missik-Gaffney, David Ray Hubbell, Teresa Diane Martter, George Frank Balogh, Arthur Allen Goldstein
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A pneumatic radial tire has a chipper in place of a traditional apex, the chipper located between a carcass main portion and turnup portion. The chipper layer may be composed of a chopped carbon fiber and aramid composite reinforced elastomeric layer. The tire sidewalls have a radial height SH and a section width SW located within a range of 0.4 to 0.44 of the sidewall radial height SH measured from the bead core. The section width SW may further be located within a range of 0.1″ to 0.3″ inches from a radially outward end of the chipper layer in a radial direction. The tread may of a dual layer construction, having a radially inward first layer formed of a relatively low rolling resistance compound and a radially outward second layer formed of a compound containing silica.
A pneumatic radial tire having a circumferentially extending equatorial plane of the tire, the tire comprising a carcass, a tread radially outward of the carcass, the carcass comprising at least one carcass reinforcing ply, opposing bead portions, and opposing sidewalls, the carcass reinforcing ply having a main portion extending between the opposing bead portions and a pair of turnup portions, each turnup portion extending from one end of the main portion, each bead portion having a bead core, and a reinforcement cavity outward of each bead core, the cavity located between the main portion and one turnup portion of the at least one reinforcing ply, the tire characterized by:
The tire of claim 11, wherein the SW is located within a range of 0.11″ to 0.3″ inches from the radially outward end of the chipper layer in a radial direction.
The tire of claim 12, wherein the chipper layer has a substantially constant thickness along a chipper layer midsection within a range of 0.005 and 0.015 inches.
Dependencies are inferred from the claim text.