Pneumatic tire with tread siping

A technology for sipes and tires, applied to tire treads/tread patterns, tire parts, vehicle parts, etc., can solve problems such as slowing down tread energy accumulation, sipe wear, and weakening the resistance of tread elements
CN101085591AInactive Publication Date: 2007-12-12THE GOODYEAR TIRE & RUBBER CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE GOODYEAR TIRE & RUBBER CO
Publication Date
2007-12-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

A tire having a tread has at least one tread element with a multidimensional sipe formed in the tread element. The sipe has a width W, a depth Ds, and an effective length Le. The sipe has a first radially outermost portion with a constant effective length Le, a second transitional portion with a gradually increasing effective length Le, and a third radially innermost portion having a constant effective length Le greater than the effective length of the first portion.
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Description

technical field

[0001] The present invention relates to a pneumatic tire. More particularly, the present invention relates to tires having a tread provided thereon with a special type of multidimensional siping, wherein, when the tire tread is in a substantially unworn state, the length of the sipe inside the tread elements is greater than The length of the tread pattern on the tread surface of a tire. Background technique

[0002] The tread portion of a pneumatic tire generally includes a plurality of axially and transversely extending grooves defining ground engaging rubber elements in the form of blocks or ribs or a combination of both. The particular size or shape of the tread elements contributes significantly to the overall performance of the tire, and for this reason they are designed to achieve the desired characteristics of the tire.

[0003] Conventionally, tire treads are also provided with sipes of known character. A sipe is a groove having a width in the rang...

Claims

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