초록 ▼

A folder comprising a sheet (1) which is pleated in a concertina-like fashion (10, 11, 12) and which, in a pleated state, is folded around fold lines (14, 15) that extend perpendicularly to the pleat line (10, 11, 12) in the pleated sheet, wherein the sheet (1) is surrounded by a protective cover (2

A folder comprising a sheet (1) which is pleated in a concertina-like fashion (10, 11, 12) and which, in a pleated state, is folded around fold lines (14, 15) that extend perpendicularly to the pleat line (10, 11, 12) in the pleated sheet, wherein the sheet (1) is surrounded by a protective cover (2) when in a fully folded-up state. The two sheet fold-lines (14, 15) extending perpendicular to the pleat lines (10, 11, 12) face in mutually the same direction, so as to enable the two end-panels of the pleated sheet (1) to be folded in overlapping relationship with the center panel. The cover (2) is a paperboard cover against which one pleated panel (40) of the sheet is fastened in a centered position on one side of the cover (2), wherein the cover also includes fold lines (24, 25) which coincide generally with the fold lines (14, 15) on the sheet (1). The cover is provided on the inner (23) of the two mutually overlapping outer panels (21, 23) a tongue (26) which receives therebeneath the free end of the outer (21) of the two mutually overlapping outer panels (21, 23), which panels also overlap the center panel (22) when the folder is in a fully folded-up state.

대표청구항 ▼

[What is claimed is:] [1.]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

[What is claimed is:] [1.]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.