| 摘要 |
A process for the manufacture of boxes, wherein a sheet material, such as cardboard, is punched to produce a box element with at least five sections limited by parallel score lines; the ends of at least three sections are inserted and fastened in U-grooves recessed in side walls formed by synthetic material, a fourth section forms a lowerable and liftable cover and a fifth terminal section forms a closing flap, for which each side wall of synthetic material has an insertion groove. The fastening of the punched element to the side walls may be carried out without adhesives by means of the engagement of the punched element edges, and of cuts thereof, in the U-grooves of the side walls, and with some teeth of them. Some side flaps defined in the closing flap can co-operate with inwardly and outwardly directed teeth of the insertion grooves, by providing for the cover in closed position a releasable catch and, respectively, a sealed closing.
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