Pneumatic tire

A technology for pneumatic tires and tires, applied in tire parts, tire treads/tread patterns, transportation and packaging, etc., can solve the problem of not being able to suppress uneven tread wear, etc. The effect of uneven wear and avoiding the deterioration of rigidity balance
CN101168341AActive Publication Date: 2008-04-30TOYO TIRE & RUBBER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TOYO TIRE & RUBBER CO LTD
Publication Date
2008-04-30

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Abstract

In the invention, a tread surface is provided with a groove portion including a main groove continuously extending in a tire circumferential direction, and a land portion including a rib or a block separated by the main groove, wherein the land portion includes a first edge portion having a depression row formed by arranging long hole shaped depressions extending along the groove portion in the tire circumferential direction and a second edge portion extending along the main groove while being different in position in a tire width direction from the first edge portion, and not having the depression row.
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Description

technical field

[0001] The present invention relates to a pneumatic tire provided with a tread including a main groove continuously extending in the tire circumferential direction and a land portion including ribs or blocks defined by the main groove. Background technique

[0002] Conventionally, various proposals have been made for the problem of uneven wear occurring on the tread. Such uneven wear is known as center wear in which the central region of the tread wears earlier, and shoulder wear in which the shoulder region wears earlier in contrast to center wear. , The non-uniform ground contact specific pressure of the tire-shaped tread. That is, when the difference in ground contact specific pressure is large between the center region and the shoulder region, the amount of wear tends to be different between these regions, thereby causing center wear and shoulder wear.

[0003] The pneumatic tire described in Patent Document 1 below divides the land portion into a land ...

Claims

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