PURPOSE: To provide a mounting device capable of supplying laundry to a device arranged downstream by providing a suction device with one chamber- like space provided with an open upper side and an exhaust side and forming a venturi by two facing surfaces.

CONSTITUTION: A clamp 3 spreads the upper edge of the laundry and only a conveyor roller 5 and a conveyor belt 11 are driven. Then, a second blowing pipe 4 generates the jet stream of air and the clamp 3 discharges the laundry simultaneously with it or immediately after. Simultaneously, an air pipe 9 starts blowing and a venturi housing starts suction. The upper edge of the laundry is blown to the front side of the conveyor belt and simultaneously sucked by the venturi housing. Also, the second blowing pipe 4 generates the jet stream of the air further so as to correctly blow the upper edge of the laundry onto the conveyor belt without piling it up.