| 摘要 |
PROBLEM TO BE SOLVED: To provide a device that guides a derricking rope loosened due to a boom being fanned by wind to an appropriate position.SOLUTION: A rope guide device 500 is a guide device for a derricking rope 112 wound around a first sheave group 231 and a second sheave group constituting a derricking device for derricking a boom of a crane, which has a plurality of partitioning portions arranged outward in a radial direction between adjacent sheaves of a plurality of sheaves S constituting the first sheave group, a first connection portion 512 and a second connection portion 513, and comprises a first regulating member 510 and a second regulating member 560 which regulate movement of the derricking rope between the adjacent sheaves. The first connection portion and the second connection portion are arranged at positions which do not disturb motion of the derricking rope during turning of the boom from a lower limit position to an upper limit position. A space between the adjacent partitioning portions is set as a space where the derricking rope is permitted to move during the turning of the boom from the lower limit position to the upper limit position.SELECTED DRAWING: Figure 10 |
