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Patent Searching and Data


Title:
STUDLESS TIRE
Document Type and Number:
Japanese Patent JP2009090912
Kind Code:
A
Abstract:

To provide a pneumatic tire solving such a problem held by a prior art and superior in anti-hydroplaning property and operation stability performance on a dry road in addition to performance on snow and ice.

In the pneumatic tire having a wide circumferential main groove extending in a circumferential direction of a tread on a tread stepping surface of the tire, in a cross section in a width direction of the tire, length SWHout of a perpendicular taken down from the maximum width position to a tire rotation axis of an area becoming a vehicle outside at attachment of the vehicle making an equator surface of the tire as a border is made longer than length SWHin of a perpendicular taken down from the maximum width position to the tire rotation axis, and further, the circumferential main groove is arranged such that a width center of the groove is positioned at an inner side of the vehicle at attachment of the vehicle than an equator of the tire.


Inventors:
WATABE RYOICHI
Application Number:
JP2007265484A
Publication Date:
April 30, 2009
Filing Date:
October 11, 2007
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
B60C11/04; B60C3/06; B60C5/00
Domestic Patent References:
JP2007161123A2007-06-28
JP2004338628A2004-12-02
JP2007015596A2007-01-25
JP2004338628A2004-12-02
JPS61188203A1986-08-21
Attorney, Agent or Firm:
Kenji Sugimura
Kosaku Sugimura
Kiyoshi Kuruma
Shiro Fujitani
Tatsuya Sawada