PURPOSE: To avoid occurrence of an error that an item to be stored falls out from a bag by providing a large number of recoverable flexible thin belts on a supporting frame disposed around a blower port at the end of a blower passage opposite to the blower port thereby to precisely put the item into an opening of the bag.

CONSTITUTION: If a synthetic resin bag A is suspended from a supporting plate through a clip and a blower is actuated, an opening of the bag A is opened by the air from a blower port 6. Flexible thin belts 13 are located above the opening of the bag A, and if an item to be stored, such as vegetable, is thrown toward the opening of the bag A, the item first drops onto the belts 13 and the lower portions of the thin belts 13 are bent into a curved state by the weight of the item, so that a front side wall 11 of the opening of the bag A is pushed and expanded to the front side. Under such conditions, the item to be stored B is guided by the curved belts 13 and surely put into the bag A. If the item B has been stored in the bag B, the belts 13 are restored to their original horizontal position by a restoring force.