| 摘要 |
It is the object of the present invention to provide an inner cable that keeps durability and has hardly rotating property. The present invention is an inner cable for operation with a complex stranded construction composed by a core strand stranded with a plurality of element wires and a plurality of side strands on which a plurality of element wires are respectively stranded are stranded, characterized in that a tightening percentage which is represented by the percentage of a value which is obtained by dividing a value obtained by subtracting a measured outer diameter being the diameter of the circumscribed circle of the inner cable for operation from a calculated outer diameter being the total sum of the inner cable for operation to a diameter direction of the respective outer diameters of a plurality of element wires, by the measured outer diameter is 4 to 11% and a pre-forming percentage of the side strand which is represented by the percentage of a value which is obtained by dividing the undulating diameter of the side strands when the inner cable is sleeved, by the measured outer diameter of the inner cable is 65 to 90%, and the stranding length of the inner cable for operation is 9 to 18-fold against the outer diameter of the inner cable for operation and an angle of the element wires composing the side strand appearing at the outermost lay against an axis line of the inner cable is -3 degrees to 3 degrees.
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