PNEUMATIC TIRE

WIPO Patent Application WO/2013/108594

A1

Provided is a pneumatic tire with polygonal blocks closely and densely arranged on the tread surface and with a high-dimension noise reduction capability. A land portion is partitioned on the tread surface by a pair of circumferential main grooves (2) extending on both sides of a tire equator (C) and along the equator in a zigzag manner. The land portion is partitioned into at least five circumferentially arranged block columns (L) of polygonal blocks with five or more vertices by four or more circumferential thin grooves (3) extending along the equator in a zigzag manner and a number of lateral grooves (4) providing connection between the circumferential main grooves and the circumferential thin grooves and between the circumferential thin grooves. A symmetric arrangement of the polygonal blocks (5) with respect to the tire equator (C) is displaced between side regions (R1, R2) across the equator in the circumferential direction of the tire by a phase difference of 0.2 to 0.4 times a pattern repetition pitch of the block columns.

JP2795378	[Title of Invention] Pneumatic all-season tire
JP4313112	Pneumatic tires for heavy loads
JP2003211918	PNEUMATIC TIRE

TAKAHASHI TATSUO (JP)

PCT/JP2013/000052

July 25, 2013

January 10, 2013

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BRIDGESTONE CORP (JP)

B60C11/11; B60C11/03; B60C11/12

WO2010032737A1	2010-03-25
WO2008146851A1	2008-12-04

JP2009190558A	2009-08-27
JP2007168572A	2007-07-05

TEST METHOD FOR TYRE-ROAD SOUND LEVELS COAST-BY METHOD OF DIRECTIVE 2001/43/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL, 27 June 2001 (2001-06-27)
See also references of EP 2805835A4

SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)

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