Tire tread having serrated grooves

US8393365B2 · kind B2 · utility

Assignee

• The Goodyear Tire & Rubber Company · US

Inventors

• Joseph Thomas Janesh · Tallmadge, US
• Daniel Abe Alford · Cuyahoga Falls, US
• Kelly Sue King · Wadsworth, US
• Brian David Digman · Sagamore Hills, US
• Richard Mark Wieland · Akron, US
• David Howard · Dawsonville, US

Key dates

• Filing date: Dec 11, 2009
• Grant date: Mar 12, 2013
• Expiry date: Jul 21, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60C2011/1231
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A tread is configured to have three rows of tread elements, a center row and a pair of shoulder rows, the center row forming a circumferential rib positioned at an equatorial centerplane of the tread. Each shoulder row has a repeating circumferential array of upwardly extending elongate groove fingers, adjacent groove fingers within the repeating array of each shoulder row of groove fingers being connected by at least one laterally extending channel. An array of serrations line each longitudinal side of the channels, each serration defined by inward tapering serration sidewalls extending to a serration base surface. Each channel is submerged below an outward tread surface such that the submerged channel will emerge as the tread wears down.