Invention Grant
- Patent Title: Radial tire with specified bead for light heavy-weight vehicle
- Patent Title (中): 具有指定珠子的轻型重型车辆的径向轮胎
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Application No.: US13508855Application Date: 2010-10-25
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Publication No.: US08950456B2Publication Date: 2015-02-10
- Inventor: Christophe Laurent , David Dean , David Lavialle
- Applicant: Christophe Laurent , David Dean , David Lavialle
- Applicant Address: FR Clermont-Ferrand CH Granges-Paccot
- Assignee: Compagnie Generale des Etablissements,Michelin Recherche et Techique S.A.
- Current Assignee: Compagnie Generale des Etablissements,Michelin Recherche et Techique S.A.
- Current Assignee Address: FR Clermont-Ferrand CH Granges-Paccot
- Agency: Dickinson Wright PLLC
- Priority: FR0958020 20091113
- International Application: PCT/EP2010/066048 WO 20101025
- International Announcement: WO2011/057889 WO 20110519
- Main IPC: B60C15/06
- IPC: B60C15/06 ; B60C15/00 ; B60C15/02 ; B60B21/10 ; B60C1/00

Abstract:
An assembly including a tire having beads, said bead axially including outside the turn-up a layer of a material defining a bead outer profile, such that the distance A, between the carcass frame and the bead outer profile, is as defined in formula (Z), B being the distance between the end of the turn-up, said bead including first and second profiles between the carcass frame and the turn-up, the first profile extends from the bead wire and is made of a material having an extension secant modulus at a 10% elongation higher than 20 MPa, a second profile arranged in the bead such as to be in contact with a surface of the first profile and the turn-up, made of a material having an extension secant modulus at a 10% elongation of at least 7 MPa and an extension secant modulus at a 100*% extension of at least 4.5 MPa.
Public/Granted literature
- US20120267028A1 TIRE BEAD FOR LIGHT HEAVY-WEIGHT VEHICLE Public/Granted day:2012-10-25
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