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Tyre with projection diversion device

A deflecting device, a technology for discharging water flow, applied in heavy-duty tires, tire parts, tire treads/tread patterns, etc., and can solve problems such as temperature rise

Inactive Publication Date: 2010-07-07
OCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical solution described in this patent can limit the temperature rise in the tread, especially near the end of the crown reinforcement ply

Method used

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  • Tyre with projection diversion device
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  • Tyre with projection diversion device

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] figure 1 A partial section of a heavy goods vehicle tire 1 according to the invention is shown. The section is generated from a meridian section, i.e. containing the tire's axis of rotation (the axis parallel to figure 2 In the plane of the direction shown by the line XX' in). This tire 1 comprises a crown region 2 connected by sidewalls 3 to beads (not shown). The crown 2 of the tire comprises a tread 20 delimited radially on the outside by a running surface 21 and side faces 22 intended to come into contact with the road when the tire is running. The line of intersection of the running surface 21 and each side 22 forms an intersection edge 23 . The tread 20 is provided with several circumferential grooves 24 for promoting the drainage of water towards the rear of the tire when the tire is run on a ground covered with water.

[0035] Notwithstanding the presence of these circumferential grooves, it has been found that some water drains in a transverse direction (i...

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Abstract

The invention relates to a tyre (1) having a tread (2) with flanges (3) extending axially and radially towards the inside of the tread, the tread having a rolling surface (21) to be in contact with the ground during rolling and side faces axially extending on either side of the tread, wherein the tyre further includes on one flange thereof and in the vicinity of the tread a circumferential rib (4) for modifying the height of water projections in the transverse direction (corresponding to a direction parallel to the tyre rotation axis) in the case of rolling on wet ground. The circumferential rib (4) includes a device (5) for diverting the flow of water projections in case of rolling on a water-covered ground, wherein said device (5) is formed by a plurality of protrusions (51) protruding on said circumferential rib (4) and arranged in a direction oblique relative to the transverse direction. The circumferential rib (4) further includes a plurality of studs (6) for reducing the flow force when rolling on a water-covered ground, said studs (6) being provided between the protrusions of the diversion device (5).

Description

technical field [0001] The present invention relates to tires for heavy-duty road vehicles, and in particular to tires provided with means for deflecting or diverting water discharged laterally when a vehicle equipped with said tires travels on a road covered with water. Background technique [0002] When driving in the rain, the maneuver of overtaking or catching up with a heavy goods vehicle is often dangerous for other road users, as large quantities of water may be drained sideways from the vehicle, splashing other vehicles The windshield of these vehicles will significantly reduce the visibility of the drivers of these vehicles. [0003] Tires for heavy goods vehicles generally consist of two beads intended to come into contact with the rim, a crown provided with a tire having a running surface and two sidewalls (sidewalls) The running surface is used to contact the ground when the vehicle is running, and the two sidewalls are used to connect the tread with the bead. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/01B60C19/00
CPCB60C13/023B60C2011/013B60C11/01B60C2200/06Y10T152/10018
Inventor J-M·达尔古F·索尼尔哈
Owner OCIETE DE TECH MICHELIN
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