TIRE - BRIDGESTONE CORP

Title:

TIRE

Document Type and Number:

WIPO Patent Application WO/2016/203880

Kind Code:

A1

Abstract:

The purpose of the present invention is to improve the heat radiation performance of circumferential grooves located on the outermost side in the tire width direction, and enhance the cooling effect imparted to a tread by the circumferential grooves. First circumferential grooves (20) are located on the outermost side in the tire width direction (K), and second circumferential groves (21) are adjacent to the inside in the tire width direction (K) of the first circumferential grooves (20). First land portions (15) are arranged on the outside in the tire width direction (K) of the first circumferential grooves (20), and a second land portion (16) is disposed on the inside in the tire width direction (K) of the second circumferential grooves (21). A plurality of width direction grooves (30) extend inclined to the tire width direction (K), and each have a first end (31) opening into the first circumferential groove (20) and a second end (32) opening into the second circumferential groove (21). The first end (31) of each of the width direction grooves (30) is located further upstream (G) in the airflow direction (F) than the second end (32) of each of the width direction grooves (30).

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Inventors:

YAMAGUCHI MASASHI (JP)

Application Number:

PCT/JP2016/064302

Publication Date:

December 22, 2016

Filing Date:

May 13, 2016

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)

International Classes:

B60C11/03; B60C11/13

Foreign References:

JPH05254313A	1993-10-05
JP2000094907A	2000-04-04
JPH09156316A	1997-06-17

Other References: