Folder

Abstract

In a pocket type folder, a flat thin shape is obtained when the pocket type folder is not used. On the other hand, when the folder is used, a non-expanded shape of a base side of a cover body is kept. The pocket type folder (10) is composed of the following components: the cover body (15) which is provided with a front cover (12) and a back cover (13) at a left side and a right side of a cover ridge (11), and a plurality of transparent pockets (P) which are applied on the inner surface side of the cover body (15) through dissolving. The pockets (P) are applied on the base-side inner surfaces of the front cover (12) and the back cover (13). The cover ridge (11) and the base-side external surfaces of the front cover (12) and the back cover (13) are provided with bending lines (20A,20B,20C).A thin shape of the folder (10) can be wholly kept when the folder is not used. On the other hand, when the folder is used, a flat shape without expansion of the base side of the cover body (15) can be kept.

Description

technical field [0001] The present invention relates to a file, and more specifically, to a pocket-type file in which a plurality of pockets formed of a transparent resin sheet are melted to a cover body. Background technique [0002] A pocket folder includes: a cover body composed of a front cover (cover), a rear cover (back cover) connected to the front cover via a spine; Resin film (pocket). [0003] Patent Document 1 discloses a well-known pocket file, for example. If an overview of the folders disclosed by the document is given, it would be as follows Figure 11 to Figure 13 As shown, it includes: a cover body 55 in which the rear cover 52 is connected to the front cover 50 via a spine 51 ; and a plurality of pockets 56 provided on the inner surface side of the cover body 55 . The central portion of the pocket 56 is integrated with the cover body 55 by providing a welded portion 57 on the back cover 52 . [0004] According to such a folder, a plurality of open-ended ...

AI Technical Summary

Problems solved by technology

[0006] However, in the folder described in Patent Document 1, the central portion of the pocket 56 spanning the size of the front cover 50 and the back cover 52 is melted on the back cover 51, so as Figure 13 As shown, due to the necessity of providing a welding part, even if no document is stored in the pocket 56, the width of the back seal 51 cannot be formed narrow.

Therefore, the spine needs to have a certain width, which leads to a problem that the volume of a plurality of file folders is large.

That is, the folder described in Patent Document 1 cannot be applied to a thin cover that does not have a spine.

[0007] In addition, in the state where the document is stored in each pocket 56, if Figure 14 As shown, the base side of the opening and closing center side of the front cover 50 and the rear cover 52 tends to expand relative to the free end side to increase the thickness relatively, and the folders cannot be stacked, and the handling during transportation is deteriorated. Difference

Also, in such a case, each pocket's Figure 14 The middle and upper end side (free end side) will also become uneven, deteriorating the aesthetic appearance

Furthermore, on the side of the welding part 57, the pocket 56 cannot be avoided to bend, so there is a disadvantage that the document in the pocket 56 has a bend mark.

[0008] However, when the pockets are melted on the inner surface of the cover body, if the number of pockets is too large, the fusion becomes difficult.

Therefore, in conventional file folders in which pockets are formed by welding at one location, the number of pockets is limited by the range that can be welded, and a larger number of pockets cannot be secured.

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