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Twisted sipes

A technology of grooves and treads, applied in the direction of tires, tire treads/tread patterns, tire parts, etc., can solve the problems of reducing tire tread hardness and tread wear, etc.

Inactive Publication Date: 2018-08-21
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, sipes may reduce the stiffness of the tire tread, causing undue tread wear

Method used

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  • Twisted sipes
  • Twisted sipes
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Examples

Experimental program
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Embodiment Construction

[0016] The present invention encompasses methods for forming one or more tire treads and tires comprising said treads, wherein any such tread comprises a tire having a length, height, width, thickness extending in the direction of the sipe width and one or more sipes in cross-section taken along a plane extending in the direction of sipe width and height, wherein the cross-section is when the sipe thickness extends along the length of the sipe twist. Referring to the provision of one or more sipes, it is to be understood that a sipe or a plurality of sipes may be provided in any tread. By virtue of the use of this type of tread, the increased stiffness of the contact patch is the result of an increased interlock between the tire tread blocks, which is accompanied by a lower stiffness at the exit of the contact patch resulting in reduced tread wear While also continuing to achieve the tire / vehicle performance benefits typically achieved by utilizing one or more of such sipes. ...

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Abstract

The invention includes tire treads, tires including the tire treads, and methods of forming a tire tread. The tire tread includes a length extending in a lengthwise direction, a width extending in a lateral direction, and a thickness extending in a depthwise direction from an outer, ground-engaging side of the tread. The tire treads further include a sipe having a length, a height, a width, a thickness extending in a direction of the sipe width, and a cross-section taken along a plane extending in a direction of the sipe width and height, where the cross-section twists as the sipe thickness extends along the length of the sipe. A method of forming the tire tread includes molding into the tread a sipe and a void feature as recited herein.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to and benefit of International Patent Application No. PCT / US2015 / 058439 filed on October 30, 2015 with the United States Patent Office (as the United States Receiving Office), which application is hereby incorporated by reference. technical field [0003] The present invention relates generally to tire treads and, more particularly, to tire treads having sipes in which at least a portion of the sipe is twisted to produce different angles of inclination throughout the tire tread block. Background technique [0004] Tire treads are known to contain a pattern of sipes and / or discontinuities arranged along the ground-engaging side of the tread to provide adequate traction and handling during certain conditions. For example, the grooves provide grooves into which water, mud, or other environmental materials can be transferred to better allow the tire tread to engage the ground surface. Tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/12B60C11/03
CPCB60C11/1218B60C11/1281B60C11/0323B29D2030/0613B29D30/0606B60C11/1222
Inventor M·科利特F·霍特巴尔特X·内奥T·怀特
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN