Packing box for holding notebooks, for example, has two oppositely disposed cover flaps detachably interconnected by buttons, whereby the flaps overlap each other, and both flaps have elongated holes extending in folding direction

摘要

Two oppositely disposed cover flaps(2,3) are detachably interconnected by buttons(4), whereby the flaps overlap each other. Both flaps have elongated holes extending in the folding direction and of which one is longer than the other. Each button has a contact plate and a clamping piece between which the flaps are clamped. The contact plate and clamping piece are interconnected by a shank. The clamping piece extends on both sides and has clamping faces with indentations lying against the underside of the lower flap.