JP2523261B2 - Binding method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding method for an album or the like in which a superposing end surface of a body to be bound whose one side is aligned is adhered to an inner surface of a spine of a cover.

[0002]

2. Description of the Related Art Conventionally, as a method of adhering a cover sheet and a sheet to be bound made of a thermoplastic resin as described above, a back portion of the cover sheet is pressed from the outer surface of the back portion of the cover sheet with a high frequency vibrating body such as an ultrasonic horn. A method of adhering the inner surface and the body to be bound, pressing the end surface of the body to be bound and the back inner surface of the cover,
A method is known in which a thermoplastic resin is melted by reciprocating with a slight amplitude in parallel to the pressure-contact surface to cause frictional heat generation in the pressure-contact surface, and the two are adhered to each other (see JP-A-1-316292). ).

[0003]

However, in the method using the above ultrasonic horn, the outer surface of the spine of the cover pressed by the high-frequency vibrating body is also melted, and the outer surface of the spine is crushed.
It has the drawback of being easily scratched.

Further, in the method of reciprocally vibrating parallel to the pressure contact surface and melting by frictional heat, the reciprocating vibration mechanism is required, and the mechanism itself is expensive, so that there is a drawback that the manufacturing cost becomes large after all. there were.

Therefore, an object of the present invention is to
An object of the present invention is to provide a bookbinding method that can be bound very easily at low cost.

[0006]

In order to achieve the above object, in the bookbinding method of the present invention, a plurality of sheets to be bound made of thermoplastic resin are superposed on each other to form a bound article, and the bound articles are stacked. The mating end face and the inner surface of the back part made of the thermoplastic resin of the cover are opposed to each other, the heating element is interposed between them, and both are melted at the same time, and then the heating element is extracted and the bound object and the cover sheet are made of the melting resin. It is characterized in that it is adhered to the inner surface of the back of the.

[0007]

As described above, since the overlapping end surface of the bound material and the inner surface of the spine of the cover are melted, there are means for holding the bound material, means for holding the cover, and means for interposing the heating element. It suffices that the holder and the holding means simply have a cylinder or the like for bringing the body to be bound and the cover sheet close to and apart from each other, the cost of the bookbinding apparatus itself can be kept low, and bookbinding can be provided inexpensively after all. .

Further, the bound body and the cover sheet are heated by a heating element.
Since they are melted at the same time, the melting time is short, and bookbinding can be performed in a short time. Furthermore, since the inner surface of the spine of the cover is melted, it is possible to prevent the outer surface of the cover from being damaged.

[0009]

Embodiments Embodiments shown in the accompanying drawings will be described below. 1 to 3 show an embodiment of a bookbinding method according to the present invention. FIG. 1 is a side sectional view of a bookbinding apparatus, FIG. 2 is a front view thereof, and FIG. 3 is a front view showing a completed bookbinding. It is a figure.

In the bookbinding method according to the present invention, a bound body 2 formed by stacking a plurality of bound sheets 1 made of a thermoplastic resin is joined to an inner surface 4a of a back portion 4 made of a thermoplastic resin of a cover sheet 3. The sheet 1 to be bound is a sheet-like material made of a thermoplastic resin such as polypropylene for an album, for a business card holder, or for postcard organization. In addition, the bound body 2 includes a bound sheet 2 and a bound sheet 1 having a thermoplastic resin film on the overlapping end surfaces thereof. In addition, cover 3
May be made entirely of a thermoplastic resin, or only the back part may be made of a thermoplastic resin, and the other may be made of paper. In short, it is applied to a joint surface made of a thermoplastic resin. It

Further, the bookbinding device 5 includes a binding body holding mechanism 6 for holding a bound body 2 in which a large number of bound sheets 1 are superposed, a cover holding mechanism 7 for holding a cover 3, and a heating element 8.
And a cylinder mechanism (not shown) that allows the heating element 8 to be interposed or pulled out between the bound body 2 and the cover sheet 3.

The binding body holding mechanism 6 includes a partition 11 fixed to the table 10, a partition 12 movable on the table 10 by a driving means such as a screw or a piston (not shown), and both partitions 1.
1 and 12 are configured to clamp the bound body 2.

The cover holding mechanism 7 is constructed so that it can be attached with the inner surface 4a of the spine 4 of the cover 3 facing downward, and can be moved up and down by a lifting means (not shown).

The heating element 8 is a plate having a sheathed heater and the like built therein, but the heating element 8 is not limited to this.
Various means capable of releasing thermal energy are possible.

A method of bookbinding an album or the like using the bookbinding apparatus 5 will be described. First, the bound sheet 1
A large number of sheets are superposed, the overlapping end faces are clamped by partitions 11 and 12, and the cover 3 is held by the cover holding mechanism 7 with the inner surface of the spine 4 of the cover 3 facing downward. The holding mechanism 7 is lowered to move the end face of the body to be bound 2 and the cover 3
The inner surface of the back portion 4 of the above is opposed to the inside of the back portion 4 and the heating element 8 is placed between them so as to be close enough. Then, the heating element 8 is interposed between the two, and the spine 4 of the cover 3 is
The inner surface 4a and the overlapping end surface of the body 2 to be bound are simultaneously melted.

Since the melting temperature of polypropylene is 120 to 130 ° C., a heating element at about 170 to 180 ° C. is used to melt for about 4 to 5 seconds, and then the heating element 8 is pulled out. The cover sheet 3 is brought into contact with the body to be bound 2 to join them, and the bookbinding as shown in FIG. 3 is completed.

As described above, since the bookbinding can be performed by a simple method using the heating element 8, the bookbinding cost can be reduced.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made within the scope of the present invention.

[0019]

As is clear from the above description,
According to the bookbinding method according to the present invention, a heating element is interposed between the overlapping end surface of the body to be bound and the inner surface of the spine of the cover, and both are melted at the same time. Since the bookbinding device has a means for holding the bound body and the cover and interposing the heating element, the holding means such as the bound body simply brings the bound body and the cover close to each other. It suffices to provide a cylinder or the like for separating, and the cost of the bookbinding apparatus itself can be kept low, and as a result, inexpensive bookbinding can be provided.

Further, since the body to be bound and the cover sheet are simultaneously melted by the heating element, there is an advantage that the melting time is short and bookbinding can be carried out in a short time.

[Brief description of drawings]

FIG. 1 is a side sectional view of a bookbinding apparatus used in a bookbinding method according to the present invention.

FIG. 2 is also a front view

FIG. 3 is a front view showing the completed bookbinding.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Binding sheet 2 Binding object 3 Cover 4 Back part 4a Inner surface 5 Bookbinding device 6 Holding mechanism for binding object 7 Holding mechanism for cover 8 Heating element

Claims (1)

(57) [Claims] 1. A binding object is formed by stacking a large number of binding sheets made of thermoplastic resin, and the overlapping end surface of the binding object and the inner surface of the back portion made of the thermoplastic resin of the cover are opposed to each other. a heating element interposed, after melting them at the same time, the bookbinding method characterized by adhering the back inner surface of the bound body and cover in molten resin by extracting the heating element.