Steel cords for the reinforcement of rubber articles

Details Steel cords for the reinforcement of rubber articles Steel cords for the reinforcement of rubber articles

1995-02-24

1997-01-21

Stryjewski, William

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57214, 57218, 57230, 57902, D02G 307, D02G 306

Patent

active

055950574

ABSTRACT:
A steel cord for the reinforcement of rubber articles comprises a core comprised of three steel filaments, a first sheath formed by twisting nine wave-formed steel filaments around the core, and a second sheath formed by twisting fifteen wave-formed steel filaments around the first sheath in a direction opposite to the twisting direction of the first sheath, in which a forming ratio F.sub.1 of each filament in the first sheath and a forming ratio F.sub.2 of each filament in the second sheath are within a range of 0.75-0.95, respectively, and satisfy Fi.sub.1 <F.sub.2.

REFERENCES:
patent: 4158946 (1979-06-01), Bourgois
patent: 4628683 (1986-12-01), Bourgois et al.
patent: 4763466 (1988-08-01), Abe et al.
patent: 5351470 (1994-10-01), Shimura
Translation of Abstract of JPA-5-179584.

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