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Tire including a reinforcement for reinforcing a sidewall

A technology of crown reinforcement and reinforcement, which is applied to the reinforcement layer of pneumatic tires, tire sidewalls, tire parts, etc., can solve the problems of adjustment, expensive and incapable of tire performance, and achieve high extrusion shock resistance and reduce The effect of cost and quality, great flexibility

Active Publication Date: 2016-05-04
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] While "shoulder lock" type designs do effectively make tires less susceptible to "squeeze shock" damage, they have the disadvantage of being expensive and not allowing very fine tuning of tire performance

Method used

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  • Tire including a reinforcement for reinforcing a sidewall
  • Tire including a reinforcement for reinforcing a sidewall
  • Tire including a reinforcement for reinforcing a sidewall

Examples

Experimental program
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Embodiment Construction

[0085] In the following description, when the word "radial" is used, it is appropriate for those skilled in the art to distinguish between the various uses of this word. First, the expression refers to the radius of the tire. This means that a point P1 is said to be "radially inside" a point P2 (or "radially inside" a point P2) if it is closer to the axis of rotation of the tire than a point P2. Conversely, a point P3 is said to be "radially outside" a point P4 (or "radially outside" a point P4) if it is farther from the axis of rotation of the tire than a point P4 is. Progress is said to be "radially inward (or outward)" when it is in the direction of a smaller (or larger) radius. This sense of the term is also used when discussing the case of radial distances.

[0086] Conversely, a reinforcement element or reinforcement is said to be "radial" when one or more reinforcement elements of the reinforcement form an angle greater than or equal to 65° and less than or equal to 9...

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PUM

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Abstract

The invention relates to a tire (10) which includes: an apex (12) onto which a thread (20) is mounted, two sidewalls (22), two beads (24), each sidewall (22) connecting each bead (24) to the apex (12); a carcass reinforcement (32) anchored in each one of the beads (24) and extending from each bead (24) through each sidewall (22) and including textile wire-like elements for reinforcing the carcass; a reinforcement (25) for reinforcing a sidewall, including textile wire-like reinforcing elements for reinforcing the sidewall. We have R=max(Kl,i) / min(K2,j)>l, where Kl,i is the torsion factor of each one of the i multifilament strands of the carcass of each textile wire-like element for reinforcing the carcass, and K2,j is the torsion factor of each one of the j multifilament strands for reinforcing the sidewall of each textile thread-shaped reinforcing element for reinforcing the sidewall.

Description

technical field [0001] The subject of the invention is a tire comprising a carcass ply and a sidewall reinforcing ply comprising textile filamentary reinforcing elements. Background technique [0002] Conventional tires are known in the prior art which comprise a carcass reinforcement comprising a carcass ply anchored in the beads by winding up around an annular reinforcing structure so that A main bundle extending from one bead across the crown of the tire to the other bead and a turn-up extending radially outward from the annular reinforcing structure are formed. [0003] When such conventional tires run on the ground under normal conditions of use (in terms of speed and load), they may experience impacts at the tread or sidewalls, the frequency and intensity of which are generally considerable. One of the primary functions of the tire is to absorb and attenuate these shocks without thereby significantly affecting the mobility and integrity of the vehicle with respect to ...

Claims

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Application Information

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IPC IPC(8): B60C9/09
CPCB60C2015/0639B60C9/09B60C17/0036B60C2009/0035B60C2009/0092B60C9/0042B60C9/0207B60C9/08B60C9/18B60C11/00B60C13/00B60C15/0009B60C2009/0466
Inventor G·安德烈
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN