Hybrid high elongation cord

Abstract

An elongation cord (10) adapted for the reinforcement of elastomer structures has a polymer core (12) and three to nine strands (14) twisted around the core with a cord twisting step in a cord twisting direction. At least one of the strands (14) has a first group (16) of filaments (17, 18) and a second group (20) of filaments (21, 22). The first group (16) of filaments (17, 18) is twisted with a first twisting step in a first twisting direction and the second group (20) of filaments (21, 22) is twisted with a second twisting step in a second twisting direction. The first twisting step is different from the second twisting step or the first twisting direction is different from the second twisting direction, or both. The first twisting direction is equal to the cord twisting direction and the first twisting step is equal to the cord twisting step.

Dependencies are inferred from the claim text.