Title:
重荷重用空気入りタイヤ
Document Type and Number:
Japanese Patent JP5409398
Kind Code:
B2
Abstract:
Provided is a pneumatic tire for heavy loads in which durability and a desired rigidity in circumferential direction are simultaneously attained while achieving a reduction in the tire weight. The present invention is a pneumatic tire for heavy loads having at least one layer of steel belt in which a plurality of steel cords 1, each of which is constituted by a plurality of intertwisted filaments 11, are arranged in parallel in the form of bundles. In the pneumatic tire for heavy loads, the height of cord bundles 2, that is, the minor axis (A) (mm) of the steel cords 1 and the bundle width (B) (mm), satisfy the relationship represented by the following Formula (1): B / A ¥ 2.0
and at the same time, the value of S = B/ (B + D), which is defined by the bundle width (B) (mm) of the cord bundles 2 and the distance (D) (mm) between the cord bundles, satisfies the relationship represented by the following Formula (2): 0.60 ¤ S ¤ 0.80
Inventors:
Yuji Koyama
Application Number:
JP2009552518A
Publication Date:
February 05, 2014
Filing Date:
February 05, 2009
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C9/20; B60C9/18; D07B1/06
Domestic Patent References:
| JPH1178410A | 1999-03-23 | |||
| JPH0495505A | 1992-03-27 | |||
| JP2004066911A | 2004-03-04 | |||
| JPH05213007A | 1993-08-24 | |||
| JPS62120004U | 1987-07-30 | |||
| JPH1178410A | 1999-03-23 | |||
| JPH0495505A | 1992-03-27 | |||
| JP2004066911A | 2004-03-04 |
Attorney, Agent or Firm:
Ichiro Honda