| 摘要 |
A switching structure of a book cover is provided not to be broken away from a sliding process, to protect completely contents aspect in closure, to be carried easily and to produce externally beauty. A book cover(1) forms guide rails(4,4') along edge of a front cover(2) and a rear cover(3) of a book, guided to two guide rails and sets up one or two slid soft blocking plates(6,6'). The blocking plate is received to a back portion of the book if the blocking plate is opened. The guide rail is identically formed along the edge of the front cover and the rear cover positioned in both sides. |
