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Tyre comprising reinforcing elements in the form of laminated strips

A technology of tires and strips, applied to the reinforcement layer of pneumatic tires, tire parts, vehicle parts, etc., can solve the problems of complex production and achieve the effect of easy use

Active Publication Date: 2020-06-05
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then it turned out that the production of this tire was very complicated

Method used

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  • Tyre comprising reinforcing elements in the form of laminated strips
  • Tyre comprising reinforcing elements in the form of laminated strips
  • Tyre comprising reinforcing elements in the form of laminated strips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0123] The following examples can illustrate the invention; however, the invention is not limited to these examples.

[0124] These examples are intended to demonstrate that the tires according to the invention have improved properties compared to control tires comprising conventional structures and tires according to the prior art.

[0125] The following tires, all in size 175 / 65R14, were compared:

[0126] - a tire PT1 comprising a conventional construction (the crown consists of two crown plies and a layer of nylon threads oriented at 0°),

[0127] - a tire PT2 according to the prior art WO2017 / 013575 (Fig. 8),

[0128] - Tires PA3 and PA4 according to the invention.

[0129] Compliant tires PT2, PA3 and PA4 each comprise a crown reinforcement zone comprising two strip plies made of reinforcing strips with a width of 15 mm, the reinforcing strips The belts are juxtaposed to each other and form an angle of about 0° with respect to the circumferential direction, the two be...

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Abstract

The tyre comprises a carcass ply connecting two beads via two sidewalls, said carcass ply being surmounted radially towards the outside of the tyre by a crown reinforcement zone (10) and being itselfsurmounted radially towards the outside of the tyre by a tread, the crown reinforcement zone comprising a plurality of reinforcing strips (14) disposed on at least one ply of strips. The strips are disposed in a juxtaposed manner and at an angle of less than or equal to 15 DEG with respect to the circumferential direction. Each reinforcing strip is made up of a laminate of at least 3 composite layers, each composite layer comprising oriented fibres that have a tensile modulus greater than or equal to 55 GPa, are parallel to one another, and are coated with a polymer matrix (13).

Description

technical field [0001] The present invention relates to tire reinforcing elements. The invention relates more particularly to tire crown structural elements. Background technique [0002] Radial carcass tires (often referred to as "radial tires") have gradually become established in most markets, particularly the passenger vehicle tire market. This success is due in particular to the qualities of durability, comfort, light weight and low rolling resistance that radial tires must possess. [0003] Radial tires essentially consist of flexible sidewalls extending radially from the beads to shoulders defining a crown, which supports the tread of the tyre, and a relatively stiff crown. Since each part of the tire has its own function, the reinforcements are also specific to each part. A feature of radial tire technology is its ability to precisely adjust the reinforcement of each section in a relatively independent manner. [0004] As is known, a radial tire for passenger veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/22B60C9/00
CPCB60C9/2204B60C9/005B60C9/0042B60C9/1821B60C9/0064B60C2009/2242B60C2009/2214B60C2009/2233B60C9/22B60C2009/0078B60C9/0028
Inventor G·帕陶特J·梅里诺C·卡雷姆
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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