Stabilizer structure for a tread of a tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsEttore Passante Spaccapietra, Philippe Joseph Auguste Muller, Marco Nicolò Coccon, Lionel Jean-Marie Bortolet
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Abstract
A tread for a tire includes a first circumferential main groove, a second circumferential main groove, a third circumferential main groove, and a fourth circumferential main groove. The fourth main groove has a stabilizing structure for increasing tread stiffness. The stabilizing structure has a circumferentially extending subgroove in a radially innermost bottom of the fourth circumferential main groove. The subgroove is axially offset a predetermined amount from a centerline of the fourth circumferential main groove.
Claims13
A tread for a tire comprising:
- one or more grooves;
- and
- a circumferential main groove, the circumferential main groove having a cross-sectional shape formed of opposed slanted walls joined together by a circumferentially continuous flat bottom, wherein a stabilizing structure for increasing tread stiffness is positioned in the circumferential main groove, the stabilizing structure having a circumferentially continuous subgroove extending radially inward of the flat bottom of the circumferential main groove, the subgroove being axially offset from a centerline of the flat bottom of the circumferential main groove.
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.
A tread for a tire comprising:
- A first circumferential groove and
- a first and second circumferential stabilizing groove, each first and second circumferential stabilizing groove having a cross-sectional shape formed of opposed slanted walls joined together by a circumferentially continuous flat bottom, wherein a circumferentially continuous subgroove extends radially inward of the flat bottom, the subgroove being axially offset from a centerline of the flat bottom of the circumferential main groove.
Dependencies are inferred from the claim text.