Multi-strand cord for timing belts

Details Multi-strand cord for timing belts Multi-strand cord for timing belts

D - Textiles, Paper

07

B

D07B 1/06 (2006.01) F16G 1/12 (2006.01) F16G 1/28 (2006.01)

Patent

CA 2202313

A steel cord (10) for the reinforcement of timing belts or transmissionbelts comprises only two to five strands (12) tightly twisted with each other in a first direction at a cord twisting pitch. Each of said strands (12) comprises only two to seven steel filaments (14) tightly twisted with each other in this first direction at a strand twisting pitch. The steel filaments (14) have a diameter ranging from 0.03 to 0.40 mm. The ratio strand twisting pitch to filament diameter is greater than 30, the ratio cord twisting pitch to filament diameter is greater than 30, and the ratio cord twisting pitch to strand twisting pitch is greater than 1. Such a steel cord has an acceptable low torsion moment under axial loads.

Câble d'acier (10) pour le renforcement de courroies de distribution ou de transmission comportant seulement 2 à 5 torons tordus serré ensemble dans une première direction et selon un pas déterminé pour les câbles. Chacun des torons (12) comporte seulement 2 à 5 fils d'acier (14) tordus serré ensemble dans cette première direction selon un pas déterminé pour les torons. Les fils d'acier (14) ont un diamètre variant entre 0,03 et 0,40 mm. Le ratio entre le pas de torsion du toron et le diamètre du fil est supérieur à 30; le ratio entre le pas de torsion du câble et le diamètre des fils est supérieur à 30 et le ratio entre le pas de torsion du câble et le pas de torsion du toron est supérieur à 1. Un tel câble d'acier possède un faible moment de torsion sous charge axiale.

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