Title:
スタッドレスタイヤ
Document Type and Number:
Japanese Patent JP5230658
Kind Code:
B2
Abstract:
The present invention is intended to provide a studless tire capable of enhancing straight-running stability with a low tread rigidity. In a section of a studless tire 10 passing a central axis line under a condition where the tire is mounted on a predetermined rim 11 and a predetermined inner pressure is charged therein, assuming that a distance A is measured from a position where a bladder ring is divided to a position where a maximum tire width is obtained along the tire radial direction and a distance B is measured from the position where the bladder ring is divided to a position where a tread ring is divide along the tire radial direction, a side-shape coefficient of the tire defined as a ratio A/B in a state where the tire is installed on a vehicle is between 0.52 and 0.55 in a widthwise half portion disposed at a widthwise outer side of the vehicle and between 0.45 and 0.50 in a widthwise half portion disposed at a widthwise inner side of the vehicle, or between 0.5 and 0.55 in a widthwise half portion disposed at the vehicle installation outer side and between 0.45 and 0.48 in a widthwise half portion disposed at the vehicle installation inner side.
Inventors:
Ryoichi Watanabe
Kurokawa Makoto
Kurokawa Makoto
Application Number:
JP2009552495A
Publication Date:
July 10, 2013
Filing Date:
February 04, 2009
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C9/08; B60C3/06; B60C5/00; B60C9/17
Domestic Patent References:
| JP2007015596A | 2007-01-25 | |||
| JPS61188203A | 1986-08-21 | |||
| JP2003191710A | 2003-07-09 | |||
| JP2006176116A | 2006-07-06 |
Foreign References:
| WO2008001913A1 | 2008-01-03 | |||
| WO2007072924A1 | 2007-06-28 |
Attorney, Agent or Firm:
Kenji Sugimura
Kiyoshi Kuruma
Tatsuya Sawada
Kiyoshi Kuruma
Tatsuya Sawada