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Tyre with a crown comprising a bielastic reinforcing element

A technology of reinforcing elements and reinforcements, which is applied to tire components, reinforcing layers of pneumatic tires, wheels, etc., can solve the problems of reduced service life of tires, achieve improved service life, prevent cracks from spreading, and improve the performance of cracks from spreading Effect

Inactive Publication Date: 2010-09-29
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

The propagation of such cracks will eventually lead to a reduction in the service life of the tire

Method used

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  • Tyre with a crown comprising a bielastic reinforcing element
  • Tyre with a crown comprising a bielastic reinforcing element
  • Tyre with a crown comprising a bielastic reinforcing element

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] figure 1 A quarter radial section of a tire 11 according to an embodiment of the invention is shown. The tire 11 comprises a crown 20 having a crown reinforcement 30 composed of a first reinforcement layer 31 and a second reinforcement layer 32 and on which the tread is located radially. Each reinforcing layer comprises reinforcing cords embedded in a matrix formed from a rubber compound. Here, the term "rubber compound" denotes a rubber composition comprising at least one elastomer and at least one filler. It should be noted that in this document the term "cord" is to be understood in a very general sense, which includes all kinds of cords in the form of monofilaments, multifilaments, cables, yarns or equivalent components, regardless of the constituent surface treatment Regardless of the material of the cord, the surface treatment promotes its bonding to the rubber or its cohesiveness. The reinforcing elements of each reinforcing layer are substantially parallel t...

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Abstract

Tyre (11) comprising a carcass reinforcement (70) radially surmounted by a crown reinforcement (30) comprising at least one layer of reinforcements (31, 32), the tyre furthermore comprising a bielastic reinforcing element (101) extending circumferentially and comprising a bielastic fabric, the bielastic reinforcing element being, at least in part, radially adjacent to a portion of at least one reinforcing layer of the crown reinforcement, in the immediate proximity of an axial end of this reinforcing layer of the crown reinforcement.

Description

technical field [0001] The invention relates to a tire comprising at least one circumferential reinforcing element comprising a bielastic fabric. Background technique [0002] Vehicle tires are constantly subjected to many mechanical stresses of various origins, depending in particular on the type of vehicle, the driving style of the driver, the type of route followed, the general condition of the road network on which the vehicle travels, etc. Each of these parameters directly or indirectly affects the strength of the tire and the mechanical stresses and strains it must withstand during its use. The crown of the tire—that is, the part of the tire toward which the sidewalls converge, which includes the tread and crown reinforcement—is the area most affected by these phenomena, and the structure of the tire crown has a significant impact on the durability of the tire. Sex has a decisive influence. [0003] One area that is particularly critical to the durability of the tire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/18
CPCB60C9/2009Y10T152/10855
Inventor J-M·于格
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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