Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2012/063819
Kind Code:
A1
Abstract:
Provided is a pneumatic tire having improved plunger energy and anti-BES resistance while maintaining the lightweight properties of a tire, as a tire that is particularly suitable as a tire for large passenger vehicles and as an extra load tire. The pneumatic tire has a carcass (1) as a structure, and is provided, on the outside in the radial direction of the crown part of the tire, with two or more belt layers (2a, 2b) obtained by covering with rubber a plurality of steel cords arranged at an incline with respect the circumferential direction of the tire. The steel cords comprise two or more core wires and 5 to 7 sheath wires that are twisted therearound. The gap between adjoining steel cords within a belt layer exceeds 1.0mm but does not exceed 1.50mm, and the gauge of the belt layer falls within the range of 1.20mm to 1.60mm.
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Inventors:
KITAHARA KOUTA (JP)
Application Number:
PCT/JP2011/075722
Publication Date:
May 18, 2012
Filing Date:
November 08, 2011
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
KITAHARA KOUTA (JP)
KITAHARA KOUTA (JP)
International Classes:
B60C9/20; B60C9/00; D07B1/06
Domestic Patent References:
| WO2010073641A1 | 2010-07-01 |
Foreign References:
| JP2007063724A | 2007-03-15 | |||
| JP2002180387A | 2002-06-26 | |||
| JPH09156314A | 1997-06-17 | |||
| JPH0610280A | 1994-01-18 | |||
| JP2005120491A | 2005-05-12 | |||
| JPH09158066A | 1997-06-17 | |||
| JP2005120491A | 2005-05-12 | |||
| JP2007063724A | 2007-03-15 | |||
| JP2007090937A | 2007-04-12 |
Other References:
See also references of EP 2639082A4
Attorney, Agent or Firm:
HONDA ICHIRO (JP)
Ichiro Honda (JP)
Ichiro Honda (JP)
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Claims:
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