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Patent Searching and Data


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 (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
Application Number:
JP2018/044577
Publication Date:
June 20, 2019
Filing Date:
December 04, 2018
Export Citation:
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Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome, Chuo-ku Tokyo, 40, 〒1048340, JP)
International Classes:
D07B1/06; B60C9/00
Domestic Patent References:
WO2001034900A12001-05-17
WO2016051669A12016-04-07
Foreign References:
JP2013227698A2013-11-07
JP2009084727A2009-04-23
JP2011032596A2011-02-17
JP2016069774A2016-05-09
Attorney, Agent or Firm:
HONDA Ichiro (HONDA INTERNATIONAL PATENT & TRADEMARK OFFICE, 6th Floor Yusei Fukushi Kotohira Bldg., 14-1, Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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