| 摘要 |
PROBLEM TO BE SOLVED: To provide a pocket-type file attaining flat thinning when not in use and maintaining a shape without swelling on a base side of a cover body when in use.SOLUTION: A pocket-type file 10 comprises: a cover body 15 comprising a front cover 12 and a rear cover 13 on both left and right sides of a back cover 11; and a plurality of transparent pockets P welded to an inner surface side of the cover body 15. The pockets P are welded to a base side inner surfaces of the front cover 12 and the rear cover 13. Folding lines 20A, 20B, and 20C are formed on a base side outer surfaces of the back cover 11, the front cover 12, and the rear cover 13. This file 10 can be kept thin as a whole when not in use and kept in a flat shape without swelling on a base side of the cover body 15 when in use. |
