Tire with turned down ply construction

US7971615B2 · kind B2 · utility

Assignee

• The Goodyear Tire & Rubber Company · US

Inventors

• Robert Anthony Neubauer · Medina, US
• Keith Carl Trares · Akron, US
• Robert Bernard Nelson · Wadsworth, US
• Joseph Kevin Hubbell · Akron, US
• Robert Allen Losey · Kent, US
• Ping Zhang · Hudson, US

Key dates

• Filing date: Dec 21, 2006
• Grant date: Jul 5, 2011
• Expiry date: Aug 8, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10864
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The tire includes a first and second axially-spaced bead core, a carcass having at least one belt extending under a tread, and a first ply layer having first and second ends, a first end is located axially outside and adjacent a first bead core, and a second end that is located axially outside and adjacent a second bead core. The carcass further comprises first and second shoulder ply layers each shoulder ply layer having first and second ends, a first end is located under the tread belt, the shoulder ply extending down the side wall region with the second end folding from a position axially outside a respective bead core to a position axially inside and around the bead core. The carcass further comprises an additional reinforcement layer which wraps around the bead and is preferably positioned between the shoulder ply and the first ply layer, although not required.