Tension adjusting device null of rope type

摘要

PURPOSE:To facilitate and simplify a tension adjusting work and obtain an uniform tension by forming marks for displaying the tension of a main cable by means an interval from a beam part, on the outer peripheral surface of a detecting cylinder fitted on a shackle rod connected to the end part of the main cable. CONSTITUTION:A detecting cylinder 23 which is contact-supprted on a lower spring seat 22 is fitted around a shackle rod 5, penetrating through an upper beam 4, rope stop plate 19, and an upper spring seat 20. A plural nuts 24 are screw fitted around the thread rod part of the shackle rod 5 which projects downward, after penetrating through the lower spring seat 22. The projection length of the shackle rod 5 is adjusted by screw loosening and tightening the nut 24. The standard marks 25 on the outer peripheral surface which approaches the upper surface of the upper beam 4 of the detecting cylinder 23 includes its function to display the deflection quantity of a spring 21, i.e., the tension of a main cable 8 from the interval toward the upper surface of the upper beam 4. When the tension increases, the shackle rod 5 rises to energize and compress the spring 21, and the standard marks rise to elongate the interval toward the upper surface of the upper beam 4.