Invention Application
- Patent Title: Tire for heavy vehicles
- Patent Title (中): 轮胎重型车辆
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Application No.: US11334203Application Date: 2006-01-18
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Publication No.: US20070256772A1Publication Date: 2007-11-08
- Inventor: Olivier Ferlin
- Applicant: Olivier Ferlin
- Applicant Address: CH Granges-Paccot
- Assignee: Michelin Recherche et Technique S.A.
- Current Assignee: Michelin Recherche et Technique S.A.
- Current Assignee Address: CH Granges-Paccot
- Priority: FR03/08828 20030718
- Main IPC: B60C9/02
- IPC: B60C9/02

Abstract:
The invention relates to a tire P comprising a radial carcass reinforcement radially surmounted by a crown reinforcement formed of at least two working crown plies formed of metallic reinforcement elements, crossed from one ply to the next, forming angles of between 10 and 45° with the circumferential direction, and of at least one additional layer formed of circumferentially oriented metallic reinforcement elements. According to the invention, at least one additional layer is radially internal to the working crown layers, said additional layer having an axial width greater than the width of the axially widest working crown layer and the reinforcement elements of said additional layer being metallic reinforcement elements having a secant modulus at 0.7% elongation of between 10 and 120 GPa and a maximum tangent modulus of less than 150 GPa.
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