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Tread comprising a ventilated device for countering irregular wear

A protective, tread technology used in tire treads/tread patterns, tire components, transportation and packaging to solve problems such as accelerated aging and reduced fatigue and crack resistance of rubber compounds

Inactive Publication Date: 2006-07-19
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

This heat generation due to mechanical stresses caused by driving conditions leads to additional energy losses and is also the cause of accelerated aging of the rubber compound, especially under the influence of impacts, reducing the resistance to fatigue and cracking of the rubber compound

Method used

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  • Tread comprising a ventilated device for countering irregular wear
  • Tread comprising a ventilated device for countering irregular wear
  • Tread comprising a ventilated device for countering irregular wear

Examples

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Embodiment Construction

[0022] Figure 1 shows a partial view of a tread B according to the invention, corresponding to a tire of size 315 / 80 R 22.5, comprising a tread formed by a plurality of main treads 1, 10 running in the circumferential direction pattern, said main treads 1, 10 are separated from each other by circumferentially running main grooves 2 of depth H and equal width. Figure 1 shows the edge of a tread with an edge tread 1 provided with an offset tread 3 with a width of less than A notch 4 of 1 mm is separated from the edge tread and this offset tread 3 has the width of the main groove 2 . This incision 4 extends in the thickness of the tread to the same depth as the main groove.

[0023] The offset d, shown here as 1.4 mm, spans between the contact surface 11 of the edge tread 1 forming part of the tread's cap surface and the outer face 31 of the offset tread 3 so that, in the The outer surface 31 is also in contact with the ground under the load of the tire due to the load carried ...

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Abstract

The invention relates to a tire tread (B) provided with a tread design formed of a number of relief elements (1, 10) delimited by grooves and / or incisions (2). This tread design comprises, on each of its sides, i.e. the axially outermost area of the tread, a circumferentially oriented edge rib (1) that is axially delimited on the inside by a groove (2) having the same general orientation and depth H. The tire tread also comprises, axially on the exterior of each edge rib (1), a rib (3) that is offset with regard to the outer contact surface (11) of the adjacent edge rib (1) by a distance d that is not equal to zero. Said offset rib (3) is separated from the edge rib (1) by a groove (4) of the same depth or nearly the depth H of groove (2) delimiting the edge rib (1). The tire tread is characterized in that it comprises, on each side where an offset rib (3) is formed, a number of channels (5) that open on the lateral faces of the tread. These channels (5) extend inside the tread until they open into the groove (4) between the offset rib (3) of the adjacent edge rib (1).

Description

technical field [0001] The subject of the present invention is an improvement in the tread of tires for heavy vehicles; in particular, it concerns a tread with a tread pattern composed of tread elements substantially in the form of strips or A combination of blocks and bars. [0002] The invention is more particularly intended to be used in radial carcass tires for non-drive axles of heavy vehicles. Background technique [0003] Such tires generally comprise a carcass reinforcement radially overlaid by a crownbelt, which in turn is provided with a tread substantially formed by a substantially circumferential rib. Covered by tread pattern. It is known in particular from US Pat. No. 4,480,671 to provide lateral regions of the tread each having a tread axially outwardly of the tread and having a meridian section substantially parallel to and radially inwardly of the meridian section of the geometric profile forming the The geometric envelope of the main middle zone of the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/01B60C11/04B60C11/13
CPCB60C11/01B60C2011/013B60C11/13B60C11/0323B60C11/032
Inventor J·米利诺罗坡茨
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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