Heretofore, refuse produced or discharged by resi dents of a building such as a multiple dwelling house, an apartment or the like in their daily life, has been treated in such a way that the refuse ?lled into plastic bags, plastic buckets or the like by each resident in the build ing, and the bags or the buckets are brought by each resident from each room to an established refuse accu mulation area or site on the lowest ?oor or ground floor. For example, a resident brings one or more plastic bags which are filled with refuse in his both hands and gets on an elevator box or goes down stairs on foot to the established refuse accumulation area to dump them out on a predetermined refuse gathering day. Further, an installation called “trash chute system” has also been employed which is provided in a building for conveying refuse. The trash chute system is of a vertically extending hole structure in which a trash chute de?ned by surrounding side walls extends verti cally through a building, and has throwing openings in one of the side walls at respective floors through which openings residents can throw refuse. When