Tyre bead structure

A tire and bead technology, applied to tire parts, bead, wheels, etc., can solve expensive and difficult problems

Inactive Publication Date: 2010-01-13
OCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, although the described tire bead structure is effective from a mechanical point of view, it remains expensive and intractable to implement using conventional industrial scale and manufacturing setups

Method used

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Embodiment Construction

[0028] definition:

[0029] "Radial" refers to the direction perpendicular to the axis of rotation.

[0030] "Awarded / located on the outside in the radial direction" means a direction perpendicular to and away from the axis of rotation.

[0031] "Toward / inward in the radial direction": refers to a direction perpendicular to and approaching the axis of rotation.

[0032] "Towards / located in the axial direction": refers to the direction parallel to the axis of rotation and pointing to the inside of the chamber in which the tire inflation pressure is applied.

[0033] "Inside of the tire" means the inside of the tire chamber in which inflation pressure is applied.

[0034] "Meridian section or meridian section" corresponds to a cross section through the tire such that the section contains the axis of rotation of the tire.

[0035] When the reinforcement is mainly contained in the meridian section, it is referred to as "radial orientation". By extension, reinforcements that form an angle of ...

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PUM

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Abstract

Heavy goods vehicle tyre comprising: - a radial carcass reinforcement (10) anchored in each of the beads to an anchoring structure (20), this carcass reinforcement (10) being partially wrapped around an anchoring structure (20) from the inside of the tyre outwards, - a first connecting reinforcement (30) partially in contact with the carcass reinforcement (10) and wrapped around the anchoring structure (20) - a second connecting reinforcement (40) formed of a plurality of reinforcing members directed in an average direction that makes an angle of at most 50 degrees with the circumferential direction and envelopes the first connecting reinforcement (30) to form an inner strand (41) and an outer strand (42), the inner strand (41) being in contact over a length V1 with the carcass reinforcement between a first end point D1 of said first strand and the endpoint P1 of the first connecting reinforcement (30), the outer strand (42) being in contact with the carcass reinforcement from a point D20 as far as an end point D2 of the outer strand over a length V2, the points D1 and D2 being positioned radially beyond the end points P1, P2 of the first connecting reinforcement (30).

Description

Technical field [0001] The present invention relates to radial tires for mounting on heavy goods vehicles, and more specifically, to the bead structure of the tires. Background technique [0002] The tire of a heavy goods vehicle includes a crown portion mounted on the outside in the radial direction from the top by a tread for contact with the road surface, the crown portion extending on each side by a sidewall terminating in the bead. The tire includes a plurality of armatures, in particular a carcass reinforcement layer, which aims to withstand the load generated by the inflation pressure inside the tire. The carcass reinforcement layer extends into the crown, the sidewall of the tire, and is anchored at its ends to appropriate anchoring structures located in the beads. The carcass reinforcement layer is usually composed of a plurality of reinforcements arranged parallel to each other and at an angle of 90 degrees or within the range of 90 degrees to the circumferential direc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C15/06
CPCB60C15/06B60C15/0027B60C15/0018Y10T152/10837
Inventor B·格里西尼P·约翰逊O·勒内弗
Owner OCIETE DE TECH MICHELIN
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