ROPE TENSION ADJUSTING DEVICE AND ROPE TENSION ADJUSTING SYSTEM

PROBLEM TO BE SOLVED: To make it possible to install even in a space directly above a rope end part or a place in which a gap between respective rope end parts is narrow where it has been uninstallable up to now upon making a projecting quantity from a cylinder relatively large.SOLUTION: A rope tension adjusting device adjusting the tension of a main rope 4 by installing a rope end part fixing section 30 having a thimble rod 6, a spring 7, and a nut 9 in a fixing tool 24 has a cylindrical cylinder tube 14b within which the cylinder 14s is formed and a piston rod 14d slidably arranged within the cylinder 14s, and is equipped with a hydraulic cylinder 14 of which the height size changes by the projecting quantity d of the piston rod 14, a thimble rod pulling up pipe lower part 15 and thimble rod pulling up pipe upper part 16 bonding the piston rod 14d moving the thimble rod 6 in a vertical direction according to the projecting quantity d of the piston rod 14d when installing the hydraulic cylinder 14 in the thimble rod 6 and the thimble rod 6.