JP2002086954A - Book with excellent two-page spread - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a book having a good two-page spread easily folding at an easily holding structure on each page when opened to stably open each page and to be easily seen. SOLUTION: The book has the excellent two-page spread. The book comprises an easily folding structure to be easily folded at a position to become a folding line when a gutter of book pages is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book with excellent spread.

[0002]

2. Description of the Related Art In a book, when a text is opened, if the user releases his / her hand, the book may return to its original position and close (it is said that the spread is poor). In particular, the tendency is strong in a picture book or the like made of cardboard. For this reason, it is necessary to hold the opened page by hand or strongly press it to form a folding habit. Therefore, it is troublesome, and even if it is held down, this does not come to mind for a weak infant or the like.

[0003]

Therefore, some books having a structure which is excellent in spread have been proposed. For example, there is a so-called medium-stitch binding book in which the center page of the text is sewn with a sewing thread to make it easier to open. In addition, because the machine must pass through the sewing machine needle, there are restrictions on paper thickness and the number of pages, and a mechanism that allows a piece of paper to stand up three-dimensionally when it is opened in the text (often used in picture books, etc.). There is a disadvantage that it is difficult. Also, there is a so-called bonded book that does not completely adhere the end face of the body to the cover, but instead glues and binds the back sides of each body to facilitate spread, but requires a large number of bookbinding steps. It takes time and effort.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a spread which is characterized in that an easy-folding structure is provided which can be easily folded at a place where a throat of the text becomes a folding line when the throat is opened. It is an excellent book. In other words, the place where the throat (the end near the back) of each throat of the text becomes a bent line when it is opened has an easy-folding structure that can be easily broken. Just by pressing down, it has a habit and does not return to its original state even if you release your hand. In this case, there are perforations, punches, grooves, and the like as the easily folded structure. Among them, perforations and punches are excellent.

In addition, the present invention provides means in which the position of the above-mentioned easy folding structure is the same in each page and different means. In the former case, the easy-to-fold structure is easily formed, and in the latter case, the folding position is different for each page, so that the folding does not overlap, so that the opening of each page is more stable.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a closed state showing an example of the present invention, FIG. 2 is a perspective view of an open state, and FIG. 3 is a partial cross-sectional view of the back side. 1
And text 2. Binding methods include thread binding, azimuth binding, perfect binding, and the like. All of these methods are binding methods in which one end (back) 3 of the body (signature) 2 is glued to the central portion 4 of the cover 2.

According to the present invention, an easy-folding structure 5 is provided at a position where the main body 2 should bend when the throat is opened. FIG. 4 is an explanatory view showing a specific example of the easy folding structure 5,
These include perforations 5a, punches 5b, grooves 5c and the like. Among them, perforations 5a are those that pierce the needle in a dotted line and do not remove the paper, punches 5b are those that remove a part of the paper to create an empty part there, and grooves 5c are The perforation 5a and the punch 5b are suitable in that they are engraved continuously on paper and are easily broken.

However, the perforations 5a and the punches 5b must not be broken only by the opening and closing operations, and the intervals and the size thereof must be set in consideration of this point. become. Also, the edge of the paper, that is, text 2
It is significant to prevent the perforation 5a and the punch 5b from striking the upper side and the lower side 2a in order to prevent easiness of tearing. If such an easy folding structure 5 is applied to the main body 2, the opened page is not folded back just by lightly pressing, and the opening is stabilized.

[0009] By the way, a book is generally bound mechanically through a rotary, Thomson, and folding process, and is bound.
The easy folding structure 5 in the text 2 as described above is usually applied in a Thomson or folding process. However, it may be applied by rotary printing at the time of printing before being taken into the folding step. In addition, concrete construction of the easy folding structure 5 is performed by pressing a roller or the like having an outer shape corresponding to the easy folding structure 5 on a moving printed paper and folding the same, or forming the whole printed paper by Thomson processing. May be fed to the folding step.

On the other hand, in this embodiment, the cover 1 is also provided with a cover-side easy folding structure 6 to stabilize the opening. Cover side easy folding structure 6
Is a groove 6c in which the look-back side is carved in consideration of the appearance. In this case, the cover-side easy folding structure 6 corresponds to the text 2
The position is closer to the back than the easy folding structure 5. This is because the opening of the text 2 is further stabilized.

The position where the easy folding structure 5 is provided may be the same or different for each page. In the case of the former, the easy folding structure 5 is easily formed, and in the case of the latter, since the bending line is shifted, the opening is more stable. The example shown in FIG.
Although the easy folding structure 5 is shifted toward the fore edge toward the center of the page, when it is opened from the center, the folding lines are gradually lowered outward and the opening is stable (state A). However, when it is opened, there is a part where the lower side rides on the higher side (b).
Even in such a case, only half the pages are required at the maximum, so that, when all the easily folded structures 5 are formed at the same position, it is more stable than a structure in which almost all the pages run.

[0012]

As described above, according to the present invention, each of the pages is easily folded when it is opened, since it is easy to bend at the place where the throat of the text is to be bent when the throat is opened. It is easily folded at the structure, and the opening of each page is stable, making the book easy to read.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a closed state showing an example of the present invention.

FIG. 2 is a perspective view showing an example of the present invention in a state where a book is opened.

FIG. 3 is a partial cross-sectional view of the back side of a book showing an example of the present invention.

FIG. 4 is an explanatory diagram of an example of an easily folded structure showing an example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover 2 Body 3 Back 5 Foldable structure 5a Perforation 5b Punch 5c Groove

Claims (3)

[Claims] 1. A book having an excellent double-page spread, wherein an easy-folding structure is provided in which a part to be a folding line when the throat of the text is opened is easily folded. 2. The book according to claim 1, wherein the position of the easy folding structure is the same for each page. 3. The book according to claim 1, wherein the position of the foldable structure is different for each page.