Patent ID: 6209919
Filing Date: 2001-04-03
Classification: B42D,G09B,G09F

Abstract:
A folder comprising:a sheet having a plurality of pleated lines for folding in a concertina fashion to form a pleated sheet with a center panel and when, in a pleated state, said pleated sheet is folded around fold lines that extend perpendicular to the pleat lines;a protective cover forming a paperboard cover for surrounding said pleated sheet when in a fully folded state and said fold lines extending perpendicular to the pleat lines in a same direction so as to enable two end-panels of the pleated sheet to be folded over said center panel of said pleated sheet;a concertina pleat panel of said pleated sheet fastened in a center position on an inside of the cover, the concertina pleat panel having a length slightly shorter than a length of the protective cover and fastened to the protective cover along the length, the paperboard cover having fold lines in alignment with the fold lines of the pleated sheet;a tongue provided on an inner panel of two mutually overlapping outer panels of the paperboard cover at a distance from an end of the paperboard cover, wherein said tongue receives therebeneath a free end of an outer panel of said two mutually overlapping outer paperboard panels which also overlap the center panel when the folder is in a fully folded state; andwherein the tongue is located in the proximity of one fold line between the paperboard panels.