Patent ID: 8302998

Claim:
Binding stacking comprising: a first and a second stackable sheet that are mutually connectable at a common binding side by attachment means, the first sheet adjacent to the second sheet, tabs comprised by the attachment means at the binding side, the tabs projecting from the sheets and formed integrally with the sheets such that the tabs and the sheets have a uniform thickness, and the tabs having a base width being the width of the tab at substantially the binding side of the sheet, notches defined between the tabs, the notches having a base width, the base width of the tabs and the notches is substantially the same, the tabs of the first sheet are suitable for positioning into the notches of the second sheet to provide for a mutual attachment of those sheets along the binding side along a straight folding line, and in that, the tabs each comprise a main section having a protrusion at one or both sides that are projecting from this main section and that are defining open recesses along the edge of a sheet from which the tab projects whereby a part of the base of the main section of a tab substantially fits into a recess of the tab of an adjacent sheet, and the tabs of the first and second sheets providing a direct interconnecting effect by a protrusion of a tab of the first sheet being in contact with a protrusion of a tab of the adjacent second sheet.