JPS5815184Y2 - 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 file binder into a single sheet of polypropylene, it is possible to give it the desired luster and pattern, and it also has a good texture and is resistant to scratches, increasing the product value. ,
Moreover, it has sufficient strength, can be easily manufactured, and can be suitably implemented.

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. Long and narrow projecting surfaces 2 are formed to extend further outward from the portions that will become the upper side A and the lower side opening, respectively, and each projecting surface 2 is folded back inward from the portions that will become the upper side A and the lower side opening, as shown in Fig. 3. Front cover A1 and back cover A
It is formed by high frequency bonding on the inner surface of 3.

In addition, grooves 3, 3 for bending are formed on the inner side of both sides of the shoulder cover A2 that connects to the front cover A1 and the back cover A3, and mounting holes 4.4 are formed on both ends of the shoulder cover A2. In the middle part, there is a circular needle 1 that can be opened and closed to store loose leaves.
, 1 and opening/closing knobs 5, 5 at both ends.
4 is fixedly attached using fasteners 6, 6.

Further, FIGS. 4 to 7 show another embodiment, which is formed in substantially the same manner as the embodiment described above, as indicated by the same reference numerals, but with a projecting surface 2 formed only on the upper side A of both covers AI and A3. The half surface 2a on the upper side A of the protruding surface 2 is formed wide and is shaded in FIG. 7 on the map mA1. High-frequency adhesive 7 is applied to the inner surface of A3, and the free end half 2b of the projecting surface 2 is not bonded but is formed so as to face the inner surface of both covers AI and A3.

Note that 8 indicated by a virtual line is a paper space for a table of contents or notes.

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, has a good texture and is hard to scratch, and since the projecting surface 2 is high-frequency bonded,
The strength of both covers AI and A3 can be increased to withstand rough handling, and the bound loose leaf can be held safely and securely.

In other embodiments shown in FIGS. 4 to 7, one side of the paper surface 8 is inserted into the gap C between the half surface 2b of the projecting surface 2 and the inner surface of both covers AI and A3. , the paper surface 8 can be detachably held on the inner surface of both covers AI and A3.

In this way, the present invention forms the entire layer cover to which the binder binding device is attached inside, as well as both the front and back covers, from a single sheet of polypropylene, and one of the top and bottom sides of both the front and back covers. Alternatively, the elongated projecting surface formed protruding from both sides is folded inward and formed by high-frequency bonding to the inner surface of both covers, making it easy to make both front and back covers, layer cover, and each projecting surface made of BOPP propylene. It can be formed from a single sheet of polypropylene, and each protruding surface can be easily bonded to the inner surface of the front and back covers using high frequency to avoid leaving any marks and has sufficient strength. It has the features of being able to give the desired luster and pattern, giving it a good feel, being resistant to scratches and increasing its commercial value, and being easy to manufacture and suitable for implementation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view;
FIG. 2 is an internal view of the main parts in the unfolded state, FIG. 3 is a developed view of FIG. 2, FIG. 4 is a perspective view of the whole of another embodiment, and FIG. FIG. 6 is a sectional view taken along the line II in FIG. 5, and FIG. 7 is a developed view of FIG. 1... Circular needle, B... Binding device, A1.
...Front cover, A2... Layer cover, A3...
...Back cover, I...Top side, opening...
Lower side, 2... Protrusion surface, 7... 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 entirely made of one sheet of polypropylene, and the elongated projecting surfaces that protrude from one or both of the top and bottom sides of both front and back covers are folded inward and high-frequency adhesive is applied to the inner surfaces of both covers. The cover of a file notebook, such as a loose leaf, characterized by being formed by