发明名称 |
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摘要 |
A radial carcass motor vehicle tire having a cross-section in which the ratio of the section height/overall width is less than 1 and preferably not greater than 0.7 and which is intended to be mounted on a rim provided with bead-seats inclined at an angle of 15 DEG with respect to the rotation axis, is provided with a bead-wire core around which the extremity of the carcass ply or plies, is turned-up from the inside towards the outside. The bead-wire cores are formed of rubberized metallic wires, wound spirally so as to present a polygonal cross-section elongated in the axial direction. The base of the core is inclined at an angle of 15 DEG with respect to the rotation axis. The bead-core has an irregular geometrical section, having its bary-center axially shifted to the outside with respect to the line of the mid-plane of the bead-core base from between 7% to 30% of the axial width of the bead-core base. |
申请公布号 |
DE2756844(C2) |
申请公布日期 |
1984.12.20 |
申请号 |
DE19772756844 |
申请日期 |
1977.12.20 |
申请人 |
SOCIETA PNEUMATICI PIRELLI S.P.A., MAILAND/MILANO, IT |
发明人 |
MAIOCCHI, LUIGI, VERNATE-FRAZ.MONCUCCO, MAILAND/MILANO, IT |
分类号 |
B60C9/02;B60C15/04;G03G15/00;G03G15/08 |
主分类号 |
B60C9/02 |
代理机构 |
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代理人 |
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主权项 |
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