Pneumatic tire having specified bead structure

US5679188A · kind A · utility

Assignee

• The Goodyear Tire & Rubber Company · US

Inventors

• Beale A. Robinson · North Canton, US
• Keith Carl Trares · Akron, US
• Thomas Reed Oare · Suffield, US
• Randall Raymond Brayer · North Canton, US
• Jeffrey W. Kahrs · Hartville, US

Key dates

• Filing date: Sep 7, 1993
• Grant date: Oct 21, 1997
• Expiry date: Sep 7, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10819
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A radial ply pneumatic tire features a bead core which comprises an arrangement of filaments positioned relative to one another. The bead core has a cross-section and radially inward base side, a radially outermost point or side or sides, an axially inward first side, and an axially outward second side. The base side of the bead core is substantially linear and has a width being between 50% to 75% of the rim seat width. An associated rim has a pair of humps and a rim flange associated with each hump. Each rim flange has an axially inward surface, the distance between each hump and the axially inward surface of the associated rim flange being a rim seat.