| 摘要 |
PURPOSE:To easily cut a cutting object from water without rupturing a cutting wire even if a base vessel is rocked by operating a wire driver on the base vessel and driving via a cushion pulley the cutting wire spread on the wire driver and cutting object. CONSTITUTION:When a wire driver 5 is operated by a prime mover 9, a driving pulley 8 is rotated, a truck 7 is moved to the front part as well and a cutting wire 25 travels by circulation under the necessary tension, so a cutting object 1 is gradually out. When a base vessel 3 is rocked upward, the cutting wire 25 is tightened, the pressure adjusting valves 17, 18 of each air pressure cylinder 13, 14 are opened when the tension thereof reaches the limited set value, a rod 23 is contracted in a pneumatic cylinder 13 of the front part and a cushion pulley 21 is displaced in the head direction as shown by a dashed line as well, simultaneously a rod 24 is stretched in the pneumatic cylinder 14 of the rear part, the cushion pulley 21 is displaced in the head direction as well, simultaneously a cushion pulley 22 is displaced in the reverse direction and the tension of the wire 25 is eased. |
