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Title:
TIRE FOR CONSTRUCTION VEHICLES, AND STEEL CORD
Document Type and Number:
WIPO Patent Application WO/2017/179533
Kind Code:
A1
Abstract:
A tire (1) for construction vehicles is provided with a belt layer (5) constituted of six belts and located outside a carcass layer (3) in the radial direction of the tire. The fourth belt (4B) of the belt layer (5), which is located fourth from the carcass layer (3) in the direction toward the outside in the radial direction of the tire, has a plurality of steel cords each disposed in a predetermined direction. The steel cords each have: a single core strand (11) having a layer twist structure having two layers, the layer structure being formed such that a plurality of core filaments (10a) and sheath filaments (10b) constituting a sheath are twisted together; and a plurality of sheath strands (12) having a layer twist structure formed by twisting a plurality of steel filaments (20) together, the plurality of sheath strands (12) being twisted with the core strand (11). The gaps between the filaments are filled with a predetermined rubber material.

Inventors:
TAKUBO Yoshihisa
Application Number:
JP2017/014661
Publication Date:
October 19, 2017
Filing Date:
April 10, 2017
Export Citation:
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Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome, Chuo-ku Tokyo, 40, 〒1048340, JP)
International Classes:
B60C9/00; B60C9/18; B60C9/20; D07B1/06
Domestic Patent References:
WO2001034900A12001-05-17
Foreign References:
JP2013227698A2013-11-07
JPH1143877A1999-02-16
JPH08109585A1996-04-30
JP2011042910A2011-03-03
JP2001262481A2001-09-26
JP2006104636A2006-04-20
JP2009067321A2009-04-02
JP2008150757A2008-07-03
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (Toranomon Kotohira Tower, 2-8 Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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