Patent ID: 6054070
Filing Date: 2000-04-25
Classification: B29C,B29D,B29L,G02B

Abstract:
A method of manufacturing a self-supporting optical cable, comprising the steps of:feeding a support wire and an optical cable body arranged in parallel with each other to an extruder;extruding a sheath, in a figure eight shape, over both said support wire and said optical cable body to form said self-supporting optical cable;partially cooling said sheath to a temperature greater than that needed to harden said sheath; andpassing said self-supporting optical cable, before said sheath hardens, over a plurality of guide wheels to give a length to said optical cable body in excess of that given to said support wire,wherein said guide wheels, being disposed in a cooling water tank, first contact one side of said self-supporting optical cable and then contact the other side of said self-supporting cable, the guide wheels being disposed alternately in a feed-out direction.