JPS6452104A - Optical fiber containing tube - Google Patents

Abstract

PURPOSE:To easily fix on optical fiber inserted into a tube apart at a spacing therefrom without deteriorating the fiber by adhering said fiber to the inside surface of the tube by a adhesive agent. CONSTITUTION:A stand 11 an oscillating table 14, a pair of oscillating motors 21, 22 which oscillate the table 14 and a bobbin 27 wound with the tube 1 to a coil shape, etc., are provided to a producing apparatus which inserts the optical fiber into, for example, the metallic tube 1. A supply spool 34 is provided to an optical fiber supplying device 33 to guide the optical fiber 7 through an adhesive agent coater 45, an adhesive agent dryer 51 and a lubricant supplying device 59 to the tube 1. The table 14 is so oscillated as to oscillate along spirals H by driving the motors 21, 22 to apply the acceleration from the bottom of the inside wall of the tube toward the oscillation direction. The fiber 7 which is coated 45 and dried 51 with the adhesive agent and is lubricated 59 is then guided into the tube 1 and is inserted into the entire part of the coil 5. The tube 1 is taken up on another reel and after the tube is heated and held for about 1hr, the tube is allowed to cool so that the fiber 7 is fixed to the inside surface of the tube 1.