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Tyre

A tire and tire circumferential technology, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., can solve the problems of tread rubber absorbing vibration, easily reducing ride comfort performance, noise performance, etc. Achieve the effect of suppressing air column resonance, improving ride comfort and noise performance, and excellent handling stability

Active Publication Date: 2019-11-12
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, such tires have the problem of being unable to utilize the tread rubber to sufficiently absorb the vibration during driving, thereby easily reducing ride comfort performance and noise performance (the following patents Literature 1)

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0025] figure 1 It is a developed view of the tread portion 2 of the tire 1 of the present embodiment. The tire 1 of the present embodiment is suitable for use as a pneumatic tire for passenger cars in which a tread rubber with low heat generation is arranged. In addition, the present invention is not limited to passenger cars, but can also be applied to pneumatic tires for trucks and motorcycles, and solid tires that are not filled with air, for example.

[0026] Such as figure 1 As shown, the tread portion 2 of the present embodiment is provided with a tread pattern specifying a direction in which it is mounted on a vehicle. For example, the direction to be attached to a vehicle is indicated by letters or symbols on a side wall portion (not shown in the figure) or the like. exist figure 1 In , the left side corresponds to the vehicle outer side, and the right side corr...

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PUM

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Abstract

A tyre comprises a tread portion (1) comprising a shoulder main groove (3) and a shoulder land region (5A, 5B). The shoulder land region (5A, 5B) includes an outer region (As), a middle region (Am), and an inner region (Ai). The shoulder land region (5A, 5B) is provided with a plurality of shoulder sipes (7) having components in a tyre axial direction. A sipe ratio of the middle region (Am) is smaller than the sipe ratio of the outer region (As) and the sipe ratio of the inner region (Ai).

Description

technical field [0001] The present invention relates to a tire provided with a shoulder land portion on a tread portion. Background technique [0002] In recent years, as the performance of vehicles has increased, tires having excellent steering stability have been desired. From such a viewpoint, for the purpose of improving the cornering stiffness, for example, it has been proposed to reduce the rubber thickness of the tread. [0003] However, such tires have a problem that vibrations during running cannot be sufficiently absorbed by the tread rubber, and ride comfort performance and noise performance tend to deteriorate (Patent Document 1 below). [0004] Patent Document 1: Japanese Patent Laid-Open No. 2016-159788 Contents of the invention [0005] The present invention has been made in view of the above circumstances, and its main object is to provide a tire capable of improving steering stability and suppressing reductions in ride comfort and noise performance. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/12B60C11/03
CPCB60C11/12B60C11/1236B60C2011/0339B60C11/0304B60C11/0306B60C11/033B60C2011/0341B60C2011/0358B60C2011/1209B60C2011/1227B60C2011/1254B60C2011/129B60C2011/1295B60C11/1204
Inventor 小林达矢
Owner SUMITOMO RUBBER IND LTD