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Tread comprising interrupted grooves

A tread, circumferential groove technology, applied in tire tread/tread pattern, heavy-duty tires, transportation and packaging, etc., can solve problems such as discontinuity

Pending Publication Date: 2021-07-30
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, beyond a certain degree of partial wear, the middle section and then the concealed section are individually discontinuous to the tread surface, which may require the presence of additional grooves to become effective from the partial wear condition

Method used

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  • Tread comprising interrupted grooves
  • Tread comprising interrupted grooves
  • Tread comprising interrupted grooves

Examples

Experimental program
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Embodiment Construction

[0043] In order to make the figures easier to understand, the same reference numerals are used to describe the variants of the invention, wherein these reference numerals refer to elements of the same kind (both structural and functional).

[0044] figure 1 A first variant of the arrangement of open wells on the tread surface is shown, these open wells being formed near the side edges of the tread.

[0045] Should figure 1 Shown is a partial view of a tread 1 of a tire for heavy vehicles having a tread surface 10 when new, intended to come into contact with the road surface during running. figure 1 The partial view of FIG. 1 shows the side edge 11 of the tread.

[0046] In the vicinity of this side edge 11 are formed a plurality of open wells 2 which lead to the tread surface 10 when new. These open wells 2 are arranged in the circumferential direction with a distance D between two wells. Each of these open wells 2 has an opening 20 leading to the tread surface, which open...

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PUM

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Abstract

Disclosed is a tread (1) for a heavy goods vehicle tyre having a rolling surface (10), this tread (1) comprising, close to each of its edges (11), a plurality of open wells (2) on the rolling surface when new, these open wells (2) of depth Pmax being arranged circumferentially with a mean distance D between two consecutive open wells; each open well (2) being delimited by two facing main faces (21, 22), this tread being such that each open well (2) is connected to at least one hidden cavity (32) formed inside the tread, this hidden cavity (32) opening on a main face (21, 22) of said well.

Description

technical field [0001] The present invention relates to treads for heavy vehicle tires, and more particularly to the arrangement of the voids provided with these treads, thanks to which the performance is more durable in rainy weather in terms of the ability to drain the water present on the road surface, and Driving performance is improved. [0002] definition [0003] Incision means any cavity or void created especially by molding in the tread of a tyre, the incision extending both in the depth of the tread and in the main direction (which is the direction in which water flows in the incision when driving in the rain) . This main direction corresponds to the largest dimension of the incisions on the tread surface. [0004] Open groove means a cutout in the tread that opens into the surface of the tread in contact with the road surface, the groove being delimited by facing walls the average distance between which is such that under normal conditions of use of the tyre, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/12
CPCB60C11/0323B60C11/032B60C11/1281B60C2200/06B60C11/1236B60C2011/1254
Inventor F·多姆普罗斯特
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN