| 摘要 |
PROBLEM TO BE SOLVED: To solve problems, for example, a bookmark made of a piece of paper covers a constant area of a page which is opened, results in an obstacle of reading a book, so that, when starting reading, the bookmark has to be inserted into other pages, and because of the rigidity, the bookmark does not harmonize with a curve of a page space, discomfort occurs every time turning a page, and sometimes the bookmark is fallen.SOLUTION: The bookmark has an eaves part for preventing falling, and the bookmark is formed into a small piece by utilizing thickness of a core part, and at the same time, book opening function can be secured. |
