Extrusion with variable neutral axis wire core

摘要

An elongated extruded strip (10) with a wire core (18) having a selectively positioned neutral bending axis is made by coextruding an elastomeric extrudate at an elevated temperature about a wire core (18) having adjacent parallel transverse wire lengths (22) joined by low temperature threads (34) having a melting point lower than the said elevated temperature while simultaneously feeding at least one high temperature thread (28) into the extruder in bonding relationship to the elastomeric extrudate and in selected position therewith.