METHOD AND DEVICE FOR LAYING WIRE MATERIAL FOR COMMUNICATION

摘要

PURPOSE:To feed an optical fiber unit smoothly into a conduit by force by controlling both or either of the supply speed and laying speed of the wire material for communication so that the slack quantity of the wire material for communication in a container becomes constant when the wire material for communication which is put in the enclosed container is inserted and laid with pressurized liquid. CONSTITUTION:The device is provided with a means 8 which detects the displacement of the wire material for communication optically without contacting it before the wire material unwound from a bobbin 5 is supplied to the conduit and a dancer which is arranged at the passing position of the wire material for communication while a constant load is placed, and the wire material is brought into contact; and the displacement of the dancer is detected and the slack quantity is detected from the displacement. Then the excessive length of the wire material for communication in the laying device is limited within a proper range by controlling both or either of the supply speed and laying speed of the wire material for communication with the detection signal of the detecting means 8 so that the slack quantity of the wire material for communication in the container becomes constant. Consequently, the wire material for communication in the laying device is prevented from being curved or wound disorderly owing to its stay in the laying device.