| 摘要 |
PCT No. PCT/FI96/00414 Sec. 371 Date Jan. 15, 1998 Sec. 102(e) Date Jan. 15, 1998 PCT Filed Jul. 16, 1996 PCT Pub. No. WO97/03841 PCT Pub. Date Feb. 6, 1997A cover for a for a book-type article includes a front and a back cover, each of the front and the back cover having an inner and an outer surface, and a spine joining the front and the back cover. The cover also includes flaps extending from outer edges of the front and the back covers and being separated therefrom by groove portions, the flaps being folded along the groove portions substantially parallel to the outer surface of the front and back covers. An outer surface of the flaps is joined to connecting portions of the book-type article such that the inner surface of both the front and the back cover and at least one of an inner surface of the flaps and the connecting portions of the book-type article define an air pocket, the air pocket being closed at outer edges of the front and the back cover and being open toward the spine. |
