<；P>；PROBLEM TO BE SOLVED: To provide a method for pulling a hose or a cable in a device for a sprinkler or an applicator in a greenhouse solving the following problem, where a suspending roller device has such a structure as to make a guide suspending roller travel while sequentially separating off a plurality of suspending rollers to sprinkle water or perform pest control when a monorail runs, and therefore the cable or the like pulls a plurality of other suspending rollers to become under strain, cause breakage and so on, or the hose or the like causes twist or torsion, and thereby gets in the way of running to become cause of trouble and the like. <；P>；SOLUTION: The method for pulling a hose or a cable in a device for a sprinkler or an applicator in a greenhouse includes: installing a connection means and/or a separation means to and/or from each of adjacent suspending rollers on each a plurality of suspending rollers； making each of the suspending rollers travel along a rail while travelling the guide suspending roller set to the monorail and sequentially separating off the connected suspending rollers starting from the last one so as to extend the hose and/or the cable set to each of the suspending rollers； and sprinkling water or performing pest control with the sprinkler or the applicator set to the monorail. The monorail enables the rail in the greenhouse to be movable. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
