Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2015/151642
Kind Code:
A1
Abstract:
Provided is a tire achieving both tire weight reduction and high durability on the basis of a technology established to ensure a sufficient diameter-growth preventing effect even when the amount of steel used in a belt layer is decreased.
This tire is provided with: an intersecting belt layer (4) comprising two or more layers; and a high-angle belt layer (3) comprising a rubberized layer of steel cords extending at an angle greater than an angle of the intersecting belt layer by 5º or more. The steel cords of the high-angle belt layer have the maximum diameter of 0.8 mm or more. The mass of the steel cords per unit area included in the high-angle belt layer is 80% or less of the mass of steel cords per unit area included in the intersecting belt layer. The interval of the adjacent steel cords of the high-angle belt layer in a cross section orthogonal to the longitudinal direction of the steel cords thereof is 150% or less of the interval of the adjacent steel cords of the intersecting belt layer in a cross section orthogonal to the longitudinal direction of the steel cords thereof.
Inventors:
ONUKI ATSUSHI (JP)
Application Number:
PCT/JP2015/054861
Publication Date:
October 08, 2015
Filing Date:
February 20, 2015
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C9/20; B60C9/00; B60C9/18; D07B1/06
Foreign References:
| JPH08244407A | 1996-09-24 | |||
| JP2012107353A | 2012-06-07 | |||
| JP2012171366A | 2012-09-10 | |||
| JP2010173362A | 2010-08-12 |
Attorney, Agent or Firm:
HONDA ICHIRO (JP)
Ichiro Honda (JP)
Ichiro Honda (JP)
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