Foldable sheet
OwnerUlrich Leininventor
Life of this patent
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Abstract
A foldable sheet of rectangular shape which can be folded by a plurality of folding edges intersecting at right-angles and by slits or slots which proceed from the center of the sides of a rectangular central portion which is surrounded by edge and corner foldable portions. In the unfolded state different foldable portions which belong partially to the front and partially to the back of the foldable sheet can be combined and to increase possible combinations, the central portion has between two opposing slits or slots folding edges intersecting at its center and one of the two folding edges of each corner foldable portion is cut to form a slit or slot, so that book-like folds can be formed in which the individual leaves can be combined by appropriate unfolding and refolding in varied ways.
Claims14
In a foldable sheet wherein a plurality of rectangular sections are connected together by folding edges between adjacent sections intersecting at right angles, a rectangular central portion is formed by a plurality of sections interconnected by folding edges intersecting at the center of the central portion perpendicular to each other, a plurality of side foldable sections and corner foldable sections surround the central portion, each side section having one side thereof connected to the adjacent side of the central portion by a folding edge and a second side thereof separated from a second side of the adjacent side section by a cut edge, each corner section being connected to third sides of adjacent side sections by two folding edges, the improvement wherein:
- one of said two folding edges of each corner section comprises a cut edge.
Dependencies are inferred from the claim text.