Steel wire rope and rope additional strength complex null for high flexibility additional strength

摘要

PROBLEM TO BE SOLVED: To reduce rope elongation, to form a structure of high flexibility by formation of gaps between mutual strands and to improve bending and deforming performance and durability as well as reinforcing performance and reliability, by making side strands have a relatively small diameter, preforming or postforming strands and twisting the strands so as to deal with problems of the bending and deforming performances and durability of a reinforcing wire rope. SOLUTION: In this wire rope to be orientated in a bending or deforming direction and embedded in a telecommunication cable 1, a belt conveyor, etc., to be repeatedly bent and deformed, plural side strands 12 formed in a smaller diameter D2 than that of a core strand 11 are preformed or postformed and gaps are formed in the strand 11 to constitute a wire rope 10 of high flexibility.