TIRE - YOKOHAMA RUBBER CO LTD

Title:

TIRE

Document Type and Number:

WIPO Patent Application WO/2021/210481

Kind Code:

A1

Abstract:

The present invention improves the snow performance and the wet performance of a tire tread pattern in which a plurality of inclined grooves are arranged so as to extend from starting ends in the center region, including the equatorial line of a tire, to pattern ends, toward both sides in the tire width direction and toward the same side in the tire circumferential direction. When it is assumed that the peripheral distance L from the tire equatorial line to a pattern end on the outside in the tire width direction is 100%, the inclination angles of an inclined groove with respect to the tire circumferential direction are set to: from more than 40º to 50º in a first area that is 35% or less away from the starting end; from more than 50º to 65º in a second area that is more than 35% to 50% away; from more than 65º to 80º in a third area that is more than 50% to 70% away; and from more than 80º to 90º in a fourth area that is more than 70% to 100% away. The circumferential-direction distance from the starting end to the terminal end of the inclined groove in the tire circumferential direction is 60% to 90% of the width-direction distance in the tire width direction.

Inventors:

HOMMA KENTA (JP)

Application Number:

PCT/JP2021/014862

Publication Date:

October 21, 2021

Filing Date:

April 08, 2021

Export Citation:

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Assignee:

YOKOHAMA RUBBER CO LTD (JP)

International Classes:

B60C11/03; B60C11/12

Domestic Patent References:

WO2012046724A1

2012-04-12

Foreign References:

JP2013184666A	2013-09-19
JP2013023191A	2013-02-04
JPH06278412A	1994-10-04
JP2019142446A	2019-08-29
JP2000108615A	2000-04-18
JPH05319023A	1993-12-03
JP2016505443A	2016-02-25
US20180281527A1	2018-10-04
US20170001477A1	2017-01-05
JP2015081076A	2015-04-27
JP5860625B2	2016-02-16

Other References: