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Wire ply comprising electroconductive areas

A ply and reinforced ply technology, which is applied to the reinforcement layer of pneumatic tires, transportation and packaging, thin material processing, etc.

Active Publication Date: 2013-09-04
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] However, recent tire developments, still to improve rolling resistance, have increased the use of silica-based weakly conductive compounds in most tire components that are likely to perform as the tire rolls. mechanical work

Method used

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  • Wire ply comprising electroconductive areas
  • Wire ply comprising electroconductive areas
  • Wire ply comprising electroconductive areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Such as figure 1 and figure 2 As shown, the tire will be manufactured from reinforcing plies 23 and 33 formed from lengths of threads parallel to each other and forming an angle with the longitudinal direction of the plies ( a). Such as figure 1 As shown, the cords of the reinforcing ply 23 , which is preferably designed to make a crown reinforcing belt, form an angle α of less than 90° with the longitudinal direction. Such as figure 2 As shown, the cords of the ply 33 , which is preferably used to manufacture the carcass reinforcement ply, form an angle α of approximately 90° with said longitudinal direction.

[0035] The cords (20, 30) are mostly coated with a weakly conductive rubber compound. Lengths of through cords (21, 31) are inserted between the cords coated with the weakly conductive compound at a certain pitch and given arrangement.

[0036] figure 1 A case is shown in which lengths of through cords 21 are arranged separately between a plurality o...

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PUM

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Abstract

Reinforcing ply (13, 14, 15) designed to produce a tire (1) formed of an assembly of threads, mostly coated with a poorly electrically conducting rubber compound (130, 140, 150), parallel with each other and making a given angle with the longitudinal direction of said ply. The ply includes through-threads (131, 141, 151) coated with one or more layers of rubber compounds, of which the outer layer is formed of an electrically conducting rubber compound. The through-threads are inserted between the threads coated with the poorly electrically conducting rubber compound (130, 140, 150) at a pitch and in a given arrangement in such a way as to form one or more electrically conducting pathways between the upper part and the lower part of the ply.

Description

technical field [0001] The field of the invention relates to tires for fitting to transport vehicles. More specifically, the present invention relates to the problem of charge flow in tires made with non-conductive rubber compounds. Background technique [0002] In order to enhance rolling resistance and reduce fuel consumption, modern tires contain rubber compounds, by means of predominantly fillers, which include non-conductive fillers such as silica, or compounds with very small percentages of carbon black material, and the rubber compound is used, for example, to make treads. By way of example, such a tire is described in publication EP 0 501 227 . [0003] Due to the very high resistivity of these compounds, their application has been accompanied by the development of a number of technical solutions for preventing the accumulation of static electricity and allowing the flow of charges to the ground when the vehicle is moving. The disadvantages associated with charge ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/38B29D30/42B29C70/88
CPCB60C19/08B29C70/882B29D30/42B60C9/20Y10T428/24132
Inventor H·克罗德H·安克
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN