DUST COLLECTING BAG FOR VACUUM CLEANER

PROBLEM TO BE SOLVED: To provide a dust collecting bag capable of effectively using a space in the dust collection rooms of vacuum cleaners of various types and a filtering surface of the dust collecting bag without any waste. SOLUTION: A horizontally long bag main body 2 is made of an air permeable filtering material into a horizontally long shape to have a suction port 5, and folded to be flat by the trough fold of bellows part 3b in both sides along the longitudinal direction and an end sealing part 4 for sealing both-end open end of the longitudinal direction to be flat. A supporting plate 6 is provided to have a suction port 7 in a rigid plate material. The supporting plate 6 is integrally stuck to the surface of the bag main body 2 by bringing the suction ports 5 and 7 into coincidence, the structure of the bellows part 3b such as the depth of the trough fold of the same, gusset width of the bellows part 3b or the like are different between the bellows parts on both sides of the bag main body 2.