Title:
STEEL CORD FOR RUBBER ARTICLE REINFORCEMENT, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2019/116966
Kind Code:
A1
Abstract:
Provided is a steel cord for rubber article reinforcement, which has higher tensile strength in the axial direction of the cord and higher strength in the shear direction. A steel cord (10) for rubber article reinforcement according to the present invention is provided with one core strand (11) which has a layer twisted structure and a plurality of sheath strands (12), each of which has a layer twisted structure; and the sheath strands (12) are twisted together around the core strand (11). The ratio of the diameter of a core filament (12a) to the diameter of a sheath filament (12b) in the sheath strands (12) is 0.75-0.85; and the ratio of the strength of the core filament (12a) to the strength of the sheath filament (12b) is 0.55-0.7.
Inventors:
NOZAKI YUUSUKE (JP)
Application Number:
PCT/JP2018/044577
Publication Date:
June 20, 2019
Filing Date:
December 04, 2018
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
D07B1/06; B60C9/00
Domestic Patent References:
| WO2001034900A1 | 2001-05-17 | |||
| WO2016051669A1 | 2016-04-07 |
Foreign References:
| JP2013227698A | 2013-11-07 | |||
| JP2009084727A | 2009-04-23 | |||
| JP2011032596A | 2011-02-17 | |||
| JP2016069774A | 2016-05-09 | |||
| JP2013227698A | 2013-11-07 |
Other References:
See also references of EP 3725944A4
Attorney, Agent or Firm:
HONDA Ichiro (JP)
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