A device for packing flat articles in transport containers, particularly folded-flat folding boxes in casing cartons, includes a feeder for feeding the flat articles in imbricated form. A conveyor is disposed downstream of the feeder and has an end for discharging the articles into the transport containers at a filling location. Equipment is provided for further conveying the transport containers at the filling location. A transition is provided between the feeder for the flat articles and the downstream conveyor. The transition is an accumulating and transfer device and has an imbricating roller adjustably secured on the conveyor and a height-adjustable hold-down bar fastened to the conveyor. The hold-down bar and the imbricating roller are adjustable in position for coupling with one another.