Tire having a structural element reinforced with a hybrid yarn

US8640753B2 · kind B2 · utility

Assignee

• PIRELLI TYRE S.P.A. · IT

Inventors

• Barbara Rampana · Milano, IT
• Diego Tirelli · Milano, IT
• Udo Kuhlmann · Dresden, DE
• Chokri Cherif · Ingolstadt, DE
• Christian Paul · Rotterdam, NL
• Refah Ahmet Torun · Dresden, DE
• Olaf Diestel · Dresden, DE

Key dates

• Filing date: Oct 24, 2007
• Grant date: Feb 4, 2014
• Expiry date: Apr 15, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/298
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A tire includes at least one structural element which includes at least one reinforcing element, which includes at least one hybrid yarn, the at least one hybrid yarn including a plurality of filaments obtained from at least one first multifilament yarn having a first initial tangent modulus and at least one second multifilament yarn having a second initial tangent modulus, the first and the second initial tangent modulus being different from each other, each one of the first and the second multifilament yarns including a plurality of individual filaments, the individual filaments of each one of the first and the second multifilament yarns being at least partially intermixed with each other. Preferably, the tire is a high performance or ultra high performance tire, or a tire suitable for being employed in sporting contests, such as, track motor races, or a tire suitable for sports utility vehicles.