Steel cords for the reinforcement of rubber articles and method

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

1994-11-22

1996-10-08

Stryjewski, William

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57 15, 57902, D02G 336

Patent

active

055619746

ABSTRACT:
A steel cord for the reinforcement of rubber articles has a three-layer twisting structure comprising a core of 2 steel filaments, a middle sheath layer of 6 steel filaments and an outer sheath layer of 11 steel filaments, in which a ratio of filament diameter ds in the middle and outer sheath layers to filament diameter dc in the core (ds/dc) is within a range of 1.15-1.5 and a twisting pitch of the core is not less than 20 mm, and is used as a reinforcing member in a heavy duty pneumatic radial tire, conveyor belt and the like.

REFERENCES:
patent: 3336744 (1967-08-01), Peene
patent: 3996733 (1976-12-01), Holmes
patent: 4332131 (1982-01-01), Palsky et al.
patent: 4470249 (1984-09-01), Chiappetta et al.
patent: 4609024 (1986-09-01), Yatsunami et al.
patent: 4651513 (1987-03-01), Dambre
patent: 5213640 (1993-05-01), Ikehara
patent: 5311917 (1994-05-01), Ikehara et al.
patent: 5327713 (1994-07-01), Sakon

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