RIGID CIGARETTE PACK WITH HINGED LID Russian patent published in 2005 - IPC

FIELD: containers, packaging elements or packages, specially adapted for particular articles or materials, namely cigarette packs.

SUBSTANCE: pack of parallelepiped shape has hinged lid and comprises side surface, flat upper and lower ends facing each other, located parallel one to another and defining side surface thereof. Side surface includes two parallel flat minor side walls, two parallel major side walls facing each other, low cap-shaped container, upper lid pivotally connected to the container in parallel to minor side walls. At least one side wall has profile extending outwards and forms corresponding obtuse dihedral angles with adjacent side walls. The side wall comprises central part and two side strips located from both sides of the central part. Each side strip comprises inner area contacting with central part and previously weakened by longitudinal weakened lines, and flat outer area extending along corresponding preformed fold line. Each side strip is curved so that concave part thereof faces inward to connect corresponding central part with adjacent side walls. Each side strip defines sharp edge with corresponding side wall, the first obtuse dihedral angle with corresponding minor wall and the second obtuse dihedral angle with corresponding central part, wherein the second obtuse dihedral angle exceeds the first one.

EFFECT: improved ability to remove the first cigarette from the pack after opening thereof, possibility to apply transparent coating without deforming thereof, prevention of pack wearing out during contact with user's clothing, reduced manufacturing cost and decreased time of pack production, minimal modernization of packing machine.

14 cl, 10 dwg