Patent ID: 7297220

Claim:
A method for production of curved thread-reinforced tubular structures composed of rubber layers and of strengthening layers, comprising the steps of: applying a first rubber layer to a circumference of an essentially cylindrical mandrel driven forward in a feed direction (X) coinciding with the cylinder axis of the mandrel; winding on a multiplicity of parallel reinforcing threads, having defined thread angles (α) with respect to the feed direction, by means of a bobbin creel, to form a first thread ply, the mandrel being led through a rotating deflection element having an inner circumference with a diameter greater than the diameter of the mandrel, the inner circumference surrounding the mandrel and guiding the reinforcing threads which are distributed along the inner circumference; applying a covering rubber layer, wherein the mandrel is led through the deflection element of the bobbin creel and the cylinder axis of the mandrel is offset with respect to the axis of rotation of the deflection element, the axis of rotation and the cylinder axis being parallel to each other.