| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite volume or the like with no lowering of spread property.SOLUTION: A composite volume 1 is equipped with books 21 to 23 which are vertically stacked, and a back cloth 4 which is folded in an U-shape. A back cover of each book contacts a first face 41 of the back cloth on an inner side of the U-shape of the back cloth, a front cover of the book 23 contacts a third face 43, a back cover of the book 21 contacts a second face 4. Book coupling threads 5a to 5c respectively inserted into open holes 31a to 31c, 32a to 32c, and 33a to 33c which are formed in a vertical direction of each book are also inserted into a portion of the first face of the back cloth facing the back cover of each book, and are so knotted as to form knots 61a to 61c, 62a to 62c, and 63a to 63c on the first face outside of the U-shape of the back cloth, thereby the respective books are coupled to the back cloth every book.SELECTED DRAWING: Figure 1 |
