发明申请
- 专利标题： TIRE, THE CARCASS REINFORCEMENT OF WHICH IS REINFORCED WITH A LAYER OF REINFORCING ELEMENTS IN THE BEAD REGION
- 专利标题（中）： 轮胎，加强了在珠区加强元素层的加油加固
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申请号： US13995626申请日： 2011-12-20
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公开(公告)号： US20130340913A1公开(公告)日： 2013-12-26
- 发明人: Gilles Sallaz , Agnés Degeorges , Alain Domingo , Sébastien Noel
- 申请人： Gilles Sallaz , Agnés Degeorges , Alain Domingo , Sébastien Noel
- 申请人地址： CH Granges-Paccot FR Clermont-Ferrand
- 专利权人： Michelin Recherche et Technique S.A.,COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN
- 当前专利权人： Michelin Recherche et Technique S.A.,COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN
- 当前专利权人地址： CH Granges-Paccot FR Clermont-Ferrand
- 优先权： FR1060878 20101221
- 国际申请： PCT/EP2011/073397 WO 20111220
- 主分类号： B60C9/02
- IPC分类号： B60C9/02
摘要：
The invention relates to a tire having a radial carcass reinforcement, consisting of at least one layer of reinforcing elements anchored in each of the beads by an upturn around a bead wire, said carcass reinforcement upturn being reinforced by at least one layer of reinforcing elements or stiffener, the radially outer end of which is radially on the outside of the end of the upturn.According to the invention, the reinforcing elements of at least one stiffener are non-wrapped metal cords with saturated layers, having, in what is called the permeability test, a flow rate of less than 5 cm3/min and the modulus of elasticity of the layer of polymer blend in contact with the carcass reinforcement upturn and separating the stiffener from the end of the carcass reinforcement upturn is greater than 4 MPa.
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