| 摘要 |
PROBLEM TO BE SOLVED: To facilitate bookbinding of a double folded document and to finish the thickness of the document in a bent portion to be even. SOLUTION: A cover 2 having a lateral width of a size for two pages and being made foldable in two at the boundary line S of the center in the lateral direction, is provided. On the opposite sides of the boundary line S on the inside 2c of the cover 2, a plurality of unit paper sheets 3, 3 having a lateral width smaller by a prescribed dimension than a size for one page are disposed in a state that the lateral inner end edges 3b, 3b thereof are made apart outward from the boundary line S at a prescribed distance of e/2. The portions on the sides of the inner end edges 3b, 3b of the sheets and the cover 2, and these portions on the sides of the inner end edges 3b, 3b, are pasted and stacked on each other, while a wide paper sheet 5 having a lateral width of the size for two pages is laid on the unit paper sheets 3, 3 disposed on the opposite sides of the boundary line S and is pasted with paste 4, 4 to the unit paper sheets 3, 3 at the inner end edge portions of these sheets, and the sheets are double folded at the boundary line S so that the wide paper sheet 5 side is inside. COPYRIGHT: (C)2005,JPO&NCIPI
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