Tire

A tire and tire circumferential technology, applied to tire parts, tire tread/tread pattern, transportation and packaging, etc., can solve the problems of reduced rigidity of the land part, reduced handling stability on dry roads, and reduced ground contact area, etc. To achieve the effect of suppressing the significant reduction and suppressing the handling stability performance
CN108859614AActive Publication Date: 2018-11-23SUMITOMO RUBBER IND LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUMITOMO RUBBER IND LTD
Publication Date
2018-11-23

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Abstract

The invention provides a tire. The steering stability degradation of the tire is inhibited, and the drainage performance is improved. The rotation direction (R) of the tire (1) is designated. The tread (2) is provided with a main groove (3) that extends in a zigzag shape. The main groove (3) alternatively comprises inclined elements (5) and axial elements (6) along the circumferential direction ofthe tire. The inclined elements (5) obliquely extend to external side of the tire facing the rotation direction (R), the axial elements (6) extend along the axial direction of the tire from the rotation direction (R), and thus the trench wall (8a) of the grounding side in the rotation direction (R) arranged on the external part in the axial direction of the tire can scratch water in front of thetire during the driving process. The maximal width (Wb) of the axial elements (6) is greater than the maximal width (Wa) of the inclined elements (5).
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Description

technical field

[0001] The present invention relates to a tire provided with main grooves extending continuously in a zigzag shape on a tread portion. Background technique

[0002] Conventionally, it is known that the overall width and depth of the main groove are increased to increase the groove volume in order to improve the drainage performance of the tire. However, if the groove volume is increased, the contact area decreases, the rigidity of the land portion decreases, and there is a problem that the steering stability performance on a dry road surface decreases.

[0003] In particular, in tires for racing cars that run at high speeds and under high loads, in order to generate a large cornering force, it is desired to ensure the rigidity of the land portion and improve drainage performance.

[0004] Patent Document 1: Japanese Patent Laid-Open No. 2016-97779 Contents of the invention

[0005] The present invention has been made in view of the above circumstances, an...

Claims

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