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Tyre and mold comprising a fluidic passage

A technology of fluid channels and tires, applied to tire parts, tire tread/tread pattern, tires, etc., can solve problems such as unsalable tires and unsatisfactory tire reliability, and avoid oversized tires Microporous effect

Inactive Publication Date: 2015-07-01
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the tire cannot be sold because the reliability of the tire is not satisfactory

Method used

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  • Tyre and mold comprising a fluidic passage
  • Tyre and mold comprising a fluidic passage
  • Tyre and mold comprising a fluidic passage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 A tire according to an unclaimed embodiment is shown, generally indicated by reference 10A.

[0028] The tire 10A includes a tread 12 .

[0029] Tread 12 includes, among other elements, a running layer 14 adapted to contact the ground as tire 10A rolls on the ground. Tread 12 further includes a sublayer 16 radially inward from running layer 14 . Sub-layer 16 comprises a microporous material, in this example foam. exist figure 1 , the radially outer end face of the sublayer 16 is delimited by the dashed line 17 .

[0030] Preferably, the porosity in the microporous material ranges from 10% to 60% by volume, or more preferably from 25% to 50%, the porosity T being defined as T=Vg / Vm, where Vg is The total volume of the pores in the microporous material, and Vm is the total volume of the bulk of the microporous material (including the pores).

[0031] Tread 12 , in this case running surface 14 , includes inscriptions 18 . Sculpture 18 includes grooves 20 fo...

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PUM

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Abstract

The tire (10B) comprises a tread (12) including a running layer (14) which is intended to come into contact with the ground when the tire (10B) rolls on the ground, and a sublayer (16) located radially inwards from the running layer (14). The tread (12) comprises at least one fluid passage (22) between the sublayer (16) and the air surrounding the tire (10B). The sublayer (16) comprises a cellular material. The fluid passage (22) comprises an element chosen from a groove (20) and a cut (26), formed in the running layer (14) and extended by at least one well (28) acting as a radial extension of the element, formed between the groove (20) and / or the cut (26) and the sublayer (16). Each well (28) forms a localized part of the fluid passage (22).

Description

technical field [0001] The invention relates to a tire and a curing mold. Background technique [0002] Known in the prior art are tires having a tread provided with a running surface composed of conventional rubber. The running surface is adapted to come into contact with the ground when the tire rolls on the ground. [0003] More specifically, the running surface includes various rubber plies adapted to the rolling of the tire on the ground. These plies have high abrasion resistance. [0004] In some cases, in order to limit the rolling noise of the tire on the ground, the tread is also provided with a layer comprising a microporous material. For example, the microporous material comprises a foam, in other words a material in which pores are formed in the material by gas bubbles. [0005] Because the microporous material wears faster than conventional rubber, it has been proposed to place a layer consisting of the microporous material radially inwardly from the running...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C11/14B60C11/00
CPCB60C11/0327B29D2030/061B29C33/42B29D30/0061B60C2011/147B60C11/005B60C11/00B29D30/0606B60C11/1263B60C2011/0355B60C11/1353
Inventor J·梅里诺洛佩兹D·瓦瑟尔O·库希托S·珀蒂让
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN