JP3077827U - Book cover - Google Patents

Abstract

(57) [Summary] [Problem] To easily and inexpensively produce a book cover made of cardboard. SOLUTION: A folding line 11a is provided along each side of each edge of a cover body 11 made of one rectangular thick paper. Bent pieces 12, 13, 1 outside each bending line 11a
4, 15 are formed. After the bent pieces 12 and 14 are bent and attached to the back surface of the cover body 11, the bent pieces 14
And 15 are folded and attached to the back surface of the cover body 11.
Bending line 17 extending in the width direction at the center of cover body 11
And 18 to form the back portion 16.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the cover of a book made of cardboard.

[0002]

[Prior art]

 Thick covers that are hard to bend easily are used in picture books, fairy tale books, etc. for infants and children, and various encyclopedias.

As shown in FIG. 2 to FIG. 5, a generally used thick cover as described above has a center part as a back part 2, one side as a cover part 3, and the other side as a back cover part 4. Further, a rectangular thin paper 1 having a bent piece 1a formed in a peripheral portion thereof, and thick papers 5 and 6 cut into a rectangular shape according to the size of the front cover 3 and the back cover 4 of the thin paper 1. When manufacturing a thick cover, the thick papers 5 and 6 are superimposed on each back side of the front cover part 3 and the back cover part 4 of the thin paper 1 and adhered over the entire surface with an adhesive. The folded piece 1a of each peripheral portion of the thin paper 1 is folded back so as to wrap the peripheral portions of the thick papers 5 and 6 so that the cut surfaces of the thick papers 5 and 6 are not exposed. 1 folded piece 1a is attached to cardboard 5, 6 with an adhesive, or As shown by a two-dot chain line in FIGS. 3 and 4, in most cases, a long and thin cardboard 7 different from the left and right cardboards 5 and 6 is attached to the spine 2 of the thin paper 1.

When such a thick cover made of the thin paper 1 and the thick papers 5 and 6 is used as the cover of the binding (main body), the back side 2 of the thin paper 1 has a binding side (not shown) on the binding side. The end faces are aligned and fixed together, so that the front and back sides of the binding are covered by a front cover part 3 and a back cover part 4 wrapping thick papers 5 and 6.

[0005]

[Problems to be solved by the invention]

 However, in the case of a thick cover conventionally used in children's books, etc., as described above, the thin paper 1 and the thick papers 5 and 6 are prepared separately, and the thin paper 1 and the thick papers 5 and 6 are attached to each other. Because of the use of paper having different thicknesses, the material cost is high and the cost required to produce one cover is high due to the use of paper having different thicknesses. Also, the folded piece 1a of the thin paper 1 is replaced with the thick paper 5, 6 is required to be folded so as to wrap it and to be attached to the thick papers 5 and 6. At this time, it is necessary to prevent the relative displacement between the thick papers 5 and 6 and the thin paper 1 and it takes much time and effort to produce the cover. There are problems that require time.

Therefore, the present invention is to provide a cover of a book which is simple and inexpensive, and has a beautifully finished peripheral portion.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the present invention attaches a straight bending line along the edge to each edge of the back surface of the cover body made of one rectangular thick paper, Forming a bent piece outside each of the bending lines, bending each of the bent pieces along the bending line, and directly attaching the bent piece to the back surface of the cover body to form a thicker peripheral portion. The center portion of the main body is formed with two folding lines extending in the width direction at required intervals to form a back portion, and the back portion is formed at the center portion of the cover body. Another two bending lines are provided in parallel with and at a required interval from the two bending lines.

[0008] Since a cover reinforced by laminating the peripheral portion with only one cardboard can be manufactured, the manufacturing cost can be reduced and the card can be easily manufactured, and the peripheral portion of one cardboard can be used as the cover. Because it is covered with the surface of the part, it can be a beautiful and smooth peripheral part.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 (a) and 1 (b) show an embodiment of the present invention, in which a folded work is made to have a size that can cover the work as a binding from the front and back when folded in half. On the back surface of the four side edges of the cover body 11 made of a rectangular cardboard, bent lines 11a to the back side are respectively linearly formed, and both ends are obtuse outside the bent lines 11a. The bent pieces 12, 13, 14, and 15 are formed, and each of the bent pieces 12, 13, 14, and 15 is bent along the bending line 11a and directly adhered to the back surface of the cover body 11, The peripheral portion of the cover body 11 is thickened to reinforce it, and the edges are covered with the surface of the cover body 11 so as to form a smooth edge, and the above-mentioned edges are bent. FIG. 1 (b) is attached to the back side of the central portion in the longitudinal direction of the cover body 11 having the laminated structure. As shown in FIG. 2, two bending lines 17 and 18 and further bending lines 19 and 20 are respectively applied to the outside of the bending lines over the entire length in the width direction so as to form the back portion 16. The right side of the drawing from the folding line 17 is a cover part 21, and the left side of the bending line 18 is a back cover part 22.

When the cover body 11 formed as shown in FIG. 1 (a) is to be the cover of the present invention as shown in FIG. 1 (b), first, the bent pieces 12 and 14 on both ends are respectively attached to the respective cover pieces. After being bent along the bending line 11a to the back surface, the bent pieces 12 and 14 are overlapped on the back surface of the cover body 11 to form a laminated structure, and the bent pieces 12 and 14 are directly bonded to the cover body 1 with an adhesive. Attach it to 1.

Next, the bending pieces 13 and 15 at both ends in the width direction are bent to the back side along the respective bending lines 11a, and both ends of the bending pieces 13 and 15 are The entire structure is laid on the back surface of the cover body 11 so as to be laid on the upper surface, and is adhered in the same manner as described above. As a result, it is easy and inexpensive to manufacture with a single piece of thick paper, and the peripheral portion of the cover body 11 can be made strong around the entire circumference by one piece of thick paper, which is the same as that in which conventional thick paper is wrapped. Strength.

When used as the cover of the binding, the cover portions 21 and 22 are folded back along the folding lines 17 and 18 at the back portion 16 and the cover portions 21 and 22 are folded along the folding lines 19 and 20 on the front side. So as to hold the binding portion of the binding with the depth between the folding lines 17 and 19 and between 18 and 20 as the depth of the back portion 16, and to attach the binding to the back portion 16. I do.

In FIG. 1B, although the cover portions 21 and 22 are shown as being nearly square, the vertical and horizontal dimensions can be changed arbitrarily, and the width of the back portion 16 is determined by the thickness of the binding. It goes without saying that various changes can be made without departing from the scope of the present invention.

[0015]

[Effect of the invention]

 As described above, according to the book cover of the present invention, each of the edges of the back surface of the cover body made of a single piece of rectangular thick paper is provided with straight folding lines along the edges. Forming a bent piece outside each of the bending lines, bending each of the bent pieces along the bending line, and directly attaching the bent piece to the back surface of the cover body to form a thicker peripheral portion; Since the back part is formed by attaching two folding lines extending in the width direction at required intervals to the center part of the cover body, a single piece of thick paper may be used, and the periphery may be used. Since the strength is imparted by bending the folded part of the part to the back side and laminating it, it is not necessary to prepare multiple types of materials, it can be manufactured at low cost, and it can be manufactured easily. In addition, even for a single piece of cardboard, the peripheral end face is covered with the surface of the cover. It is possible to create a beautiful and smooth peripheral edge, and by adopting a configuration in which another two bending lines are attached to the back part, the distance between two left and right bending lines can be It is possible to obtain an excellent effect that the depth can be set and the binding object can be held.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a book cover of the present invention, wherein (a) is a view of the cover body viewed from the back, and (b) is a view of the cover of the present invention manufactured from the cover body of (a) viewed from the back. (C) is a view taken along the line AA in (b).

FIG. 2 is a view of a thin paper used for a conventional book cover as viewed from the back.

FIG. 3 is a diagram showing a state in which thick paper is stuck on the back surface of the thin paper of FIG. 2;

FIG. 4 is a view of a front cover manufactured by bending a thin piece of folded thin paper and attaching the folded thin paper to the back of thick paper, as viewed from the back.

FIG. 5 is a view taken in the direction of arrows BB in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Cover main body 11a Folding line 12, 13, 14, 15 Folding piece 16 Back part 17, 18, 19, 20 Folding line 21 Front cover part 22 Back cover part

Claims (2)

[Utility model registration claims] 1. A straight bend line along the edge is attached to each edge of the back surface of a cover body made of one rectangular thick cardboard, and the outside of each bend line. A bent piece is formed, and each bent piece is bent along the bending line, and is directly attached to the back surface of the cover body to form a thicker peripheral portion. A book cover characterized in that a back portion is formed by attaching two extending bending lines at required intervals. 2. The book according to claim 1, wherein another two folding lines are provided parallel to and spaced apart from the two folding lines formed at the center of the cover body so as to form a spine portion. Cover.