Abstract: A device for automatically opening and closing the cash inlet-outlet opening of a cash container which is detachably installable into a rack in a cash handling apparatus. The device comprises a shutter provided inside the container and slidable along a wall thereof for opening or closing the opening; opening-closing drive means including opening and closing stoppers mounted on the rack and a knob attached to the shutter and cooperative with the stoppers, the drive means being adapted to drive the shutter with the movement of the container when the container is installed into or removed from the rack; lock means for holding the opening closed with the shutter; and release means for undoing the lock means with the movement of the container when the container is installed into the rack.