LAMINAR BLANK FOR ASSEMBLING POLYHEDRA, CORRESPONDING POLYHEDRON AND METHOD OF ASSEMBLY

摘要

The present invention relates to a laminar blank for assembling polyhedra which comprises at least three arrises (2a, 2b). Each of the arrises (2a, 2b) comprises: a first tab (4) projecting from the arris (2a, 2b) and forming a fold line, at least two closure grooves (12) provided in said arris (2a, 2b), a second fold-in tab (6) projecting from the first tab (4) and forming at least one fold-in line (30), a closure flange (10) projecting from the second tab (6) and aligned with a closure groove (12), and a third tab (8) projecting from one of the side edges (22) of the first tab (4) and being foldable with respect to the first tab (4) for cooperating with the adjacent arris (2b). The invention also relates to a polyhedron formed from laminar blanks according to the invention, as well as to a method of assembly.

主权项

1. A laminar blank for assembling polyhedra comprising:
at least three arrises each of said arrises of said laminar blank comprising a first fold tab projecting from said arris, extending along an entire length of said arris to form a fold line, each of said arrises further comprising at least two closure grooves provided in said arris, a second fold-in tab projecting from a free edge of said first tab facing said arris and extending partially along said free edge to form at least one fold-in line, each of said arrises further comprising a closure flange projecting from the free edge of said second tab facing said first tab and extending partially along said free edge, said closure flange being arranged aligned with one of said closure grooves, each of said arrises further comprising a third tab projecting from one of side edges of the first tab, which has a length of at least one third a length of said adjacent arris and is foldable with respect to said first tab for cooperating with the adjacent arris.