JPS5815185Y2 - Cover of file notebook such as loose leaf - Google Patents

Description

[Detailed Description of the Invention] The present invention is an invention related to the cover of a loose-leaf binder file notebook.

In other words, by making the entire shoulder cover and both front and back covers of the binder into a single sheet of polypropylene, it is possible to give it the desired gloss and pattern, and it also has a good feel and is resistant to scratches, increasing the product value. Since it is made of polypropylene, both the front and back covers, which are somewhat flexible, can be well reinforced, making it easy to handle, easy to manufacture, and suitable for implementation.

Next, the embodiment shown in the drawings will be described.

Fig. 1 shows a perspective view of the whole, in which the front cover A1, the back cover A3, and the narrow shoulder cover A2, which are the same size, are made of one sheet of polypropylene, and the front cover A1 and the back cover A3 are made of a single sheet of polypropylene. An elongated protruding surface 2 is extended outward from the portion that will become the upper side A, and a piano wire 3 that is slightly shorter than the upper side A is placed inward of the protruding surface 2 that is folded back from the upper side A. The end face portions of the projecting surfaces 2 facing the inner surfaces of the front and back covers AI and A3 are formed by high-frequency bonding 4 as they are by inserting the piano wire 3 in such a manner.

Note that it is also possible to have a configuration in which the piano wire 3 is inserted into the lower opening side and the projecting surface 2 is bonded.

In addition, grooves 5, 5 for bending are formed on the inner side of both sides of the shoulder cover A2 that is connected to the front cover A1 and the back cover A3, and a circular needle that can be opened and closed for binding loose leaves is formed in the middle part. 1,1
A binder metal fitting with opening/closing knobs 6, 6 on both ends.
The binding device B having the above-mentioned binding device B is aligned with the inner surface of the shoulder cover A2 and is fixed by fasteners 7, 7.

Therefore, the front, back and shoulder covers A1 and A of the binder
3. Since A2 is made of polypropylene, it can be formed with gloss and patterns as appropriate, and it has a good texture and is hard to get scratched.
By using high frequency adhesive 4, it is possible to increase the strength of both the front and back covers AI and A3, which are relatively flexible, to withstand rough handling, and to safely and securely hold bound loose-leaf sheets.

In this way, the present invention forms the shoulder cover on which the binder binding device is attached inside, and both the front and back covers are entirely made of one sheet of polypropylene, and the upper or lower sides of both the front and back covers are made of polypropylene. The projecting surface formed protruding from the front cover is folded inward and a long thin wire material such as piano wire is inserted inside the projecting surface and high-frequency adhesive is applied to the inner surface of both covers. The protruding surface can be easily formed from a single piece of polypropylene, and a reinforcing structure can be easily created by inserting a wire inside the fold of each protruding surface and bonding with high frequency. It can be well formed so that no marks or wires are visible, and the desired luster and pattern can be applied to the entire surface, and it has a good texture and is resistant to scratches, increasing the product value. Both the front and back covers can be well reinforced, making it easy to handle, easy to manufacture, and suitable for implementation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view;
Figure 2 shows a part of it, and Figure 3 shows III-I in Figure 2.
A sectional view taken along line II, and FIG. 4 is a developed view of FIG. 2. 1... Circular needle, B... Binding device, A2.
...Shoulder cover, A1...Front cover, A3...
...Back cover, I...Top side, opening...
Lower side, 2...Protruding surface, 3...Piano wire, 4...High frequency adhesive.

Claims (1)

[Scope of utility model registration request] Shoulder cover and front for attaching the binder's binder inward;
Both back covers are made entirely of one sheet of polypropylene, and the protruding surfaces protruding from the top or bottom sides of both front and back covers are folded inward and a long thin wire such as piano wire is placed inside. A cover for a file notebook such as a loose-leaf notebook, which is formed by sandwiching the paper and applying high-frequency adhesive to the inner surfaces of both covers.