JPH0214451Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a file, and its purpose is to provide a file in which the thickness and width of the spine can be adjusted depending on the amount of paper to be bound.

Conventional files are made by stamping a piece of cardboard to form a front cover, spine, and back cover into one piece, and then binding the papers with a binding device attached to either the front cover or the back cover. It is. Therefore, paper can only be bound to the thickness and width of the spine, and if the paper is bound to a thickness greater than the thickness and width of the spine, the front and back covers swell and the file loses its shape.

The present invention has been devised to eliminate the above-mentioned drawbacks, and the configuration thereof will be described in detail below with reference to an embodiment shown in the drawings. A is a file composed of a front cover 1, a spine 2, and a back cover 3 made of paper or synthetic resin file, etc., and the spine 2 is further provided with several folded lines in the vertical direction at an appropriate width. 4 is provided to form a bellows part 5 which is extendable and retractable, and the bellows part is folded and a cross-sectional clip is attached to the folded part so as to be freely inserted and removed. Reference numeral 7 denotes a binding tool, which is attached to the inner surface of the front cover or back cover (the one shown is the inner surface of the back cover). Further, reference numeral 8 indicates the folding lines of the front cover and the back cover. As described above, in the present invention, the bellows part 5 of the back cover 2 is folded and a clip 6 having a cross-sectional shape of this folded part is attached. 5 is expanded, the spine 2 is expanded by the amount that the bellows portion 5 is expanded, and its thickness and width are increased. Therefore, even if a large amount of paper P is bound into the binding device attached to the inner surface of the cover, the front cover and the back cover will not swell and the file shape will not collapse. Further, the degree of expansion of the bellows portion 5 can be adjusted depending on the amount of paper to be bound into the binding device, and the thickness and width of the spine can be adjusted. Moreover, since the structure is extremely simple, it is easy to manufacture, and excellent effects such as being able to provide the product at a low price can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the file according to the present invention, and FIG. 1 is a front view of the file according to the present invention, and FIG. 2 is an exploded perspective view of the main parts of the present invention. 1...Front cover, 2...Spine cover, 3...Back cover,
4... Folding line, 5... Bellows part, 6... Clip,
7... Binding tool, 8... Folding line.

Claims (1)

[Scope of utility model registration request] The front cover, the spine cover, and the back cover are integrally formed, and a binding is attached to the inner surface of either the front cover or the back cover, and an appropriate width is left on the spine cover in the vertical direction. A file formed by providing several cutting curves to form a stretchable bellows part, folding the snake part, and attaching a cross-sectional clip to the folded part so as to be freely inserted and removed.