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Truck tire tread and truck tire

A tire tread, tread technology, applied in tire tread/tread pattern, heavy-duty tires, tire parts, etc., can solve problems such as unusable tires, unsightly wear patterns on steering wheels, and irregular wear

Active Publication Date: 2018-01-02
MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Irregular wear is also a big problem because it can cause steering wheel vibrations that are felt by the driver or unsightly wear patterns, both of which cause tires to often fail early in their wear life. use

Method used

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  • Truck tire tread and truck tire
  • Truck tire tread and truck tire
  • Truck tire tread and truck tire

Examples

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Effect test

Embodiment Construction

[0027] Reference will now be made in detail to embodiments of the invention, an example of which is illustrated in the accompanying drawings. This example is provided by way of explanation of the invention.

[0028] Such as figure 1 with figure 2 As shown in , a heavy truck tire 1 comprises a tread 2 according to an embodiment of the invention. The tread 2 has five longitudinal grooves 3 , 4 , 5 , 6 and 7 continuous around the circumference of the tyre. Between the tread shoulders 8 and 9 , five longitudinal grooves delimit six ribs 10 , 11 , 12 , 13 , 14 and 15 .

[0029] The grooves 3 and 7 closest to the tread shoulders will now be referred to as "shoulder grooves". The groove 5 located in the center of the tread will now be called "central groove". The grooves 4 and 6 located between the central groove and the shoulder grooves will now be referred to as "intermediate grooves".

[0030] The ribs 10 and 15 between the shoulders and the shoulder grooves will now be ref...

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PUM

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Abstract

The invention provides for a heavy truck tire tread (2) having a longitudinal direction, a lateral direction and a thickness direction, said tread having a ground-engaging surface and comprising at least four longitudinal grooves, the at least four longitudinal grooves (3, 4, 5, 6, 7) comprising two open grooves (4, 6) and at least two partially hidden grooves (3, 5, 7), the partially hidden grooves comprising open portions and duct portions alternated along the longitudinal direction of the tread, said at least four longitudinal grooves defining two shoulder ribs, two intermediate ribs and atleast one center rib, wherein the shape, size and position of the grooves are such that for any section of tread of any given section length L between 12 mm and 40 mm, the percentage difference in rubber mass of a rib section compared to a respective neighboring rib section of the same section length L in the same rib is less than a maximum percentage difference, wherein the maximum percentage difference for a shoulder rib is Ds(%) = 50 / L(mm), the maximum percentage difference for an intermediate rib is Di(%) = 70 / L(mm), and the maximum percentage difference for a full tread section is Da(%)= 40 / L(mm).

Description

technical field [0001] The present invention generally relates to a tire tread. More specifically, the invention relates to tire treads for heavy trucks, in particular tires for free-rolling wheels of heavy trucks (so-called steering positions and trailer positions), especially tires for steering positions. Background technique [0002] The tire tread generally extends around the outer circumference of the tire to serve as an intermediate between the tire and the surface on which the tire runs (the operating surface). Contact between the tire tread and the operating surface occurs along the tire's footprint. The tire tread provides grip to resist tire slip that may occur during tire acceleration, braking, and / or cornering. The tire tread may also contain tread elements such as ribs or lugs, and tread features such as grooves and sipes, each of which may assist in providing targeted tire performance when the tire is operated under particular conditions. A tread pattern gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/04B60C11/03
CPCB60C11/0323B60C11/033B60C11/04B60C2200/06
Inventor F·朱T·瓦利亚塞
Owner MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
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