Steel cords for reinforcing rubber articles and pneumatic radial

Details Steel cords for reinforcing rubber articles and pneumatic radial Steel cords for reinforcing rubber articles and pneumatic radial

1996-12-13

1998-09-08

Stryjewski, William

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57237, 57902, 152527, 152556, D02G 336

Patent

active

058028293

ABSTRACT:
A two-layered twisted steel cord for reinforcing rubber articles, comprising a core including two filaments and a sheath including six or seven filaments wound around the core, in which an average twist pitch of the core is set to be at least 30 mm, and when six filaments are used for the sheath, a ratio of diameter ds of each filament of the sheath to range of 58.0 %<ds/dc<161.5%. When seven filaments are used for the sheath, the ratio of diameter ds to diameter dc is set in a range of 47.3%<ds/dc<121.1%. The two-layered twisted steel cords are used for reinforcing rubber articles, such as a pneumatic radial tire.

REFERENCES:
patent: 3996733 (1976-12-01), Holmes
patent: 4609024 (1986-09-01), Yatsunami et al.
patent: 4690191 (1987-09-01), Kawasaki
patent: 5213640 (1993-05-01), Ikahara
patent: 5598693 (1997-02-01), Yanagisawa et al.

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