To provide a universal size book cover which has a little man-hour for manufacturing, and which can be attached corresponding to books of various sizes.
The universal size book cover includes: a cover section 2 of a rectangle shape covering a front cover, back cover, and reverse cover of a book from an exterior surface; and a bag section 3 for inserting the front cover and a bag section 4 for inserting the reverse cover at both sides parts of one surface of the cover section 2, wherein the cover section 2, the bag section 3 for inserting the front cover, and the bag section 4 for inserting the reverse cover consist of a sheet having retractility in a vertical direction and horizontal direction respectively. In the bag section 3 for inserting the front cover, and the bag section 4 for inserting the reverse cover, edges turning to the center of the cover section 2 are opened respectively, an opening portion of the front cover and opening portion of the reverse cover can be inserted, respectively. Corner members 5 inserting and holding the upper and lower edge regions of the opening portion of the front cover and the upper and lower edge regions of the opening section of the back cover respectively are arranged at four corners of the inside of each bag section 3 and 4 of portions corresponding to four corners of both sides parts of the cover section 2.
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Naohiko Teshima
Mitsuo Shiraishi
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