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Tyre bead with protective rib

A technology for protecting ribs and tires, applied to tire parts, tire edges, wheels, etc., can solve problems such as damage to carcass reinforcement materials, dissatisfaction, and incompatibility with aesthetics, and achieve long-lasting protection

Inactive Publication Date: 2006-10-04
MICHELIN & CO CIE GEN DES ESTAB MICHELIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] From the point of view of rubber spalling, the above method is generally not satisfactory, because the upturned part of the carcass reinforcement material is damaged, which is incompatible with the aesthetic appearance on the one hand, and incompatible with the safety requirements on the other hand. , both of which are naturally required by the user

Method used

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  • Tyre bead with protective rib
  • Tyre bead with protective rib
  • Tyre bead with protective rib

Examples

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Embodiment Construction

[0025] FIG. 1 shows a partial schematic meridian view of a tire P according to the invention fitted to a mounting rim J. As shown in FIG.

[0026] Figure 1 shows the sidewall 8 and bead 5 of a passenger car tire P with a specification of 205-650 R 440 A, including carcass reinforcement material 1, which passes around the bead wire 2 and extends axially from the inside of the tire. An upturned portion 10 is formed to the outside to be anchored in the bead 5 . The upturned portion 10 is arranged axially outside the bead wire 2 and completely surrounds the special-shaped unit 3 , and the bead wire 2 fixes the carcass reinforcing material 1 . Viewed from the cross section, the shape of the above-mentioned special-shaped unit 3 is roughly a triangular oblique section, and its apex is approximately below the radial direction of the bead wire 2, that is, between the rotating shaft and the bead wire, and its two sides extend from the apex. out and the third side is opposite the apex....

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Abstract

A tire P with a radial carcass reinforcement ( 1 ), intended for mounting on a rim J at least one of whose seats ( 42 ) is inclined outwards and is extended axially on the outside by a hump ( 41 ) of small height, said hump comprising an axially outer wall ( 411 ), and comprising two sidewalls ( 8 ) and at least one bead ( 5 ) with a heel axially on the inside and a bead toe axially on the outside, said bead ( 5 ) being provided with a protective rib T extending in the circumferential direction and axially further away from the equatorial plane than the axially outer wall ( 411 ) of the hump ( 41 ) of the rim in order to protect said rim J, the profile of the lower face BC connecting the axially outer face AB of the protective rib T and the profile of the bead ( 5 ) being totally located radially outside a virtual segment whose ends are on the one hand the radially innermost point B of the axially outer face AB of the rib T, and on the other hand the last point C' of the tire bead which is in contact with the hump of the rim.

Description

technical field [0001] The present invention relates to a tire with radial carcass reinforcement, in particular to a tire with a small shape ratio H / S, where H is the height of the tire on its rim and S is its maximum axial width, the tire is designed to Can be fitted on a wheel rim, at least one of which is inclined outwards and protrudes axially on the outside by a bulge of small height. More specifically, the invention relates to the beads of such tires. Background technique [0002] The profile of this tire is also described in the patent US6092575, among other features. The profile of the bead, especially the axially outer wall, is set back axially with respect to the axially outermost end of the rim, so that the axially outermost metal parts of the rim are not protected from damage caused, for example, by urban driving Sometimes damaged by the side of the road. Patent US6179028 describes the specific structure of the bead, the tire heel is axially inside and the tir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C15/024B60C15/00
CPCB60C15/024B60C15/0247Y10T152/10819
Inventor C·埃纳尔A·佩罗J-L·布维耶A·雅拉
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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