JP2783111B

PURPOSE:To provide the manufacture of a slot type optical cable capable of reducing tensile distortion remaining in an optical fiber. CONSTITUTION:The manufacture of a tape housing slot type cable 5 by sending and taking up a tape sequentially as rotating a slot 1 on the outer periphery of which a spiral groove 3 is formed around the axis at rotating speed N1 and housing the optical fiber 4 in the groove 3 of the slot 1 via a twist port part 11 during that time is performed by rotating further the slot 1 in which the optical fiber 4 is housed around the axis by a tortion catcher 13 provided between the twist port part 11 and a take-up side 14, and controlling the tortion catcher 13 so as to satisfy equation N1