US 11,697,312 B2
Stabilizer structure for a tread of a tire
Ettore Passante Spaccapietra, Ettelbruck (LU); Philippe Joseph Auguste Muller, Champlon (BE); Marco Nicolò Coccon, Luxembourg Ville (LU); and Lionel Jean-Marie Bortolet, Longwy (FR)
Assigned to The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Sep. 22, 2020, as Appl. No. 17/27,739.
Prior Publication US 2022/0088970 A1, Mar. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B60C 11/03 (2006.01)
CPC B60C 11/0327 (2013.01) [B60C 11/0323 (2013.01); B60C 2011/0334 (2013.01); B60C 2011/0341 (2013.01)] 13 Claims
OG exemplary drawing
 
7. A system for increasing cornering stiffness of a tire tread comprising:
a circumferentially continuous main groove having a cross-sectional shape formed of opposed slanted walls joined together by a circumferentially continuous flat bottom;
a second circumferential main groove; and
a stabilizing structure for increasing tread stiffness, the stabilizing structure having a circumferentially continuous subgroove extending radially inward of the flat bottom of the first main groove, the subgroove being axially offset from a centerline of the flat bottom of the first circumferential main groove.