JP2003159883A - Cover and file - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover for a book which can be easily manufactured and looks presentable with curved corners. <P>SOLUTION: Flaps to be replicated 16, 17, 18 and 19 are formed outside folding lines 12, 13, 14 and 15 set in the form of a rectangle, in one piece of folding boxboard with an almost V-shaped notched part at the four corners. Further, a region inside each of the folding lines 12, 13, 14 and 15 is set as a cover region 20 and two longitudinal folding lines 21 are set in parallel in the right/left center parts of the cover region 20 and further, a space between both longitudinal folding lines 21 is set as a spine cover region 22. In addition, one of the right/left sections of the spine cover region 22 is set as a face cover region 23, while the other is set as a back cover region 24. For the notched part, a sector-shaped notched part for rounding including a curved side notching the corner of the cover region in a curved fashion, is formed in the trough part. Besides, each of the flaps to be replicated 16, 17, 18 and 19 is replicated to the side of the cover inner face and directly bonded to the cover region. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover of a book or the like manufactured using cardboard and a file.

[0002]

2. Description of the Related Art Picture books, children's story books, etc. for infants and children, various encyclopedias, technical literatures, etc. are hardened and thick so as not to bend easily in order to improve durability and appearance. A cover (hard cover) is used, and a book bound with this cover is called upper bound.

A cover 1 used for conventional bookbinding is shown in FIG.
As shown in FIG. 0, cardboard or other cardboard is placed as core materials 5a, 5b, 5c on the front cover 2, spine cover 3, and back cover 4, and these core materials 5a, 5b, 5c are made of thin paper. The cover body 6 is configured to be wrapped with the bent pieces 6a, 6b, 6c, 6d.

[0004]

By the way, in order to wrap up three cores inside to make a cover for bookbinding, a cardboard core and a cover main body of thin paper are cut separately and placed on the cover body. It is necessary to place three cores at predetermined positions while leaving a predetermined gap between them, and then to bend back the thin paper folding pieces and attach them to the core, so that not only cutting work of the core but also alignment work etc. A complicated process is required, and a lot of labor and time are required for manufacturing, which is troublesome.

On the other hand, a normal book cover can be easily manufactured because it can be bound using a single sheet of paper material, but since it is cut at the same time as the content page, the cut surfaces are exposed on three sides. It looks bad. Further, the conventional bookbinding is not preferable in terms of safety as a book for children because the corners of the cover, especially the corners on the side opposite to the spine, are sharpened at right angles. And, in order to make the corner part of this bookbinding into a curve, not only the corner part of the core material is cut with a curve, but also the main body of the cover is aligned with the curve of the core material and repeatedly repeated on the inner surface side of the cover. It had to be woven, that is, it was essential to repeat the R folding work. Therefore, it requires a great deal of labor and time and is not easy to manufacture.

The present invention has been proposed in view of the above circumstances, and an object thereof is that the corner portions are curved and easy to manufacture, and the necessary and sufficient durability is provided, and the appearance is inferior to the cover of a bookbinding book. It is intended to provide a unique cover page and a file using the cover page.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above object. According to a first aspect of the present invention, the folding curve is set to a substantially rectangular shape on one sheet of thick paper and the folding curve is set. The outside of the curve is defined as upper and lower horizontal folding strips and the left and right vertical folding strips, and the area inside the above-mentioned folding curve is defined as the cover area, and two vertical folding curves of a specified width are arranged in parallel at the center of the cover area. Set the spine cover area between the two vertical folding curves, set the left and right sides of this spine cover area as the front cover area and the other as the back cover area, and of the above folded pieces, the horizontal folded piece and the vertical folded piece intersect. A cover having a substantially V-shaped cutout with a hypotenuse of 90 degrees or more in a portion, wherein the cutout is a curved side in which a corner portion of the cover area is cut out in a curve in a substantially V-shaped valley portion. Is formed into a notch for R which is wide and deep, and each of the above-mentioned folded pieces is folded back to the side which becomes the inside surface of the cover, Ri each folding Kaehen Returned reinforces directly adhered to the cover region, a front cover, characterized in that the corner portion of the cover area curve.

The term "thick paper" in the present application means a paper thicker than the paper used for storing the content pages. Further, “substantially rectangular” means a shape in which a rectangular right-angled corner is rounded by a curved line, and “substantially V-shaped” means an inverted C-shape and has two inclined sides. . The "substantially V-shaped valley portion" means a portion where the two inclined sides are closest to each other.

According to a second aspect of the present invention, the notch is
A curved side that cuts out a corner portion with a curved line in a substantially V-shaped valley portion, and a portion between the curved side and the base end portion of the oblique side is approximately W.
A notch for R formed by a bent side which is notched in a letter shape and leaves a covering protrusion in the middle is formed, and each of the above-mentioned folded pieces is folded back to the inside surface side, and each folded-back piece is placed in the cover area. The cover sheet according to claim 1, wherein the cover piece is covered on the edge of the curved corner portion of the cover sheet area while being directly bonded and reinforced.

According to a third aspect of the present invention, the cover sheet according to the first or second aspect is characterized in that the folding piece located outside the spine cover area is cut off.

According to a fourth aspect of the present invention, the vertical folding curves located on the right and left sides of the spine cover area are pushed from the side which is the inner surface of the front cover to form folding corners, and the front cover area and the back cover area are formed. The cover sheet according to any one of claims 1 to 3, wherein a weak line portion is formed in the vicinity of the vertical folding curve in parallel with the vertical folding curve.

A fifth aspect of the present invention is a file characterized in that a fastener is provided on the inner surface of the spine cover area of the front cover according to any one of the first to fourth aspects.

According to a sixth aspect of the present invention, the folding margin of at least one of the lower lateral folding piece and the vertical folding piece folded back to the inner surface of the cover is set to be larger than the folding margin of the other folding piece, and for pockets. 6. The file according to claim 5, wherein the folded piece is a folded piece, the folded piece for the pocket is folded back to the inner surface of the cover sheet, the side edge portion is adhered to the cover sheet area, and the pocket has the open end portion. Is.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a cover sheet main body 11 in which a cover sheet 10 according to the present invention is developed, and FIG. 2 is a plan view and a sectional view of a state in which a folding piece is folded back.

As shown in FIG. 1, the cover sheet body 11 is made of a sheet of thick paper having cutouts 31 at its four corners, and is pushed by a line to form an upper lateral folding curve 12, a lower lateral folding curve 13, and a left vertical folding curve 14, as shown in FIG. And the right vertical fold curve 15 is formed by connecting the valleys of the notch 31 and the outside of the fold curves 12, 13, 14, and 15 are folded pieces 16, 17, 18, and 19, and the fold curve is formed. An area inside 12, 13, 14, 15 is defined as a cover area 20, and two vertical folding curves 21 and 21 having a predetermined width are set in parallel at the left and right center portions of the cover area 20 to set both vertical folding curves 21 and 2.
1 is a back cover area 22, one of the left and right sides of the back cover area 22 is a front cover area 23, and the other is a back cover area 24,
A central notch 32 is formed outside the spine cover area 22. The crease pressing is a process of engraving a thin groove by pressing the cover body 11 in a streak or linear shape, and it is easy to bend from the pressed portion. The groove may be unclear as long as it is pressed so that it can be easily bent.

The above-mentioned two vertical folding curves 21 and 21 may be formed by pressing the other folding curves 12, 13, 14 and 15 at the same time. However, the folding pieces 16 and 17 are formed in a later step.
After folding back, a folding line may be formed by pushing the muscle at once from the side to be the inner surface of the cover to give a crease having a U-shaped (rectangular) cross section. Further, a weak line portion 30 such as a vertical folding curve or a half slit (a linear notch that does not penetrate) may be further formed outside the vertical folding curves 21 and 21 with a slight interval. By adding a weakened line portion 30 such as a curved line, as shown in FIG. 2B, when the cover 10 is opened, it can be bent from the weakened line portion 30 so that it can be easily opened and it is difficult to close it when opened. It becomes easy to read. In short, the weakened line portion 30 is a line that becomes a crease when the cover 10 is opened, and the number of the lines may be any number, and the intervals are also appropriate. It becomes easier to open. The half-slit of the line of weakness 30 is more effective in that it is difficult to close the half-slit.

The notch 31 has a substantially V-shape with a hypotenuse of 90 degrees or more, and the cover region 20 is formed in the valley of the substantially V-shape.
An R notch 35 is formed that includes a curved side 34 that cuts out a corner portion of the curve with a curved line. Therefore, the folding pieces 16, 17, 18, which are adjacent to the cutout portion 31,
The end of 19 is a hypotenuse.

A first embodiment of the R notch 35 is shown in FIG.
As shown in (a), a curved side 34 is formed by cutting out a corner portion with a curved line, and a portion between the curved side 34 and the base end portion of the oblique side is cut out in a substantially W shape, and a covering protrusion 36 is formed in the middle. It is composed of the refraction side 37 to be left.

The folding operation of the peripheral portion of the notch 31 having the R notch 35 having such a structure will be described first. As shown in FIG. 3B, the folding piece 18 is folded back to the inner surface of the cover. After that, fold back the folding piece 16 to the inner surface of the cover,
By directly bonding each folded back piece to the cover area, the side edge portion of the cover area can be reinforced. Further, since the edge of the curved corner portion of the cover area can be covered with the covering piece 36, the appearance of the curved corner portion can be improved.

The covering protrusion 36 shown in FIG. 3 is a small isosceles triangle whose base length is slightly less than twice the thickness of the cardboard, so that only a part of the edge of the curved corner portion is covered. However, when the height of this triangle is extended, the coating length is further increased, so that the coating ratio is increased and the appearance can be further improved.

The coating projection 36 is not limited to a small isosceles triangle. For example, as shown in FIG. 4A, the length of the short side is less than twice the thickness of the cardboard. It may be a sized elongated rectangle. The covering protrusion 36 is not essential in order to make the corner portion of the cover area into a curve. Therefore, the R notch 35 is formed as shown in FIG.
As shown in FIG. 7, the corner portion of the cover area may be formed to have a substantially shamisen-repellent shape including a curved side 34 notched with a curved line.

Next, the folding operation of the folding pieces formed on the four circumferences of the cover body will be described. Left and right folding pieces 1 described above
8 and 19 are folded back to the inside surface of the cover sheet, the folded back pieces 18 and 19 are directly adhered to the cover area 20, and then the upper and lower folded pieces 16 and 17 are folded back in the same manner to form the folded piece 1.
6, 17 are directly bonded to the cover area 20. When the upper and lower bent pieces 16 and 17 are folded back, the left and right ends overlap the left and right folded pieces 18 and 19 that have already been folded and bonded, but these portions may be bonded in a polymerized state.

In this manner, the folding pieces 16, 17, 18,
When 19 is folded back and directly adhered to the cover area 20, at least the peripheral portion of the four sides of the rectangle is folded into the folding pieces 16, 17, 1.
8 and 19 can be reinforced by superposition adhesion, and higher strength than that of a normal book cover can be obtained. Moreover, both the corners of the front cover area and the back cover area are curved to form a right angle. There is no sharp tip.

Then, each folding piece 16, 17, 18, 19
After folding back and adhering, the vertical folding curves 21 and 21 are linearly formed with creases to be the fold corners 40 by pushing from the side to be the inner surface of the cover. In this manner, when the folding pieces 16 and 17 are folded back and then the creases are pushed, the subsequent opening and closing of the cover can be smoothly performed.

Then, the content page 33 bound in advance is accommodated in the cover 1 thus produced, the first page 33 is the inner surface of the front cover area 23, and the last page 33 is the back cover area 24.
When they are adhered to the inner surfaces of the sheets, as shown in FIG.

The book bound by the cover 10 is highly safe for children because the corners of the cover are curved. Then, the folding pieces 16, 17, 18, 19
Since it is folded inwardly, the cut surface does not appear on the edge of the cover as in normal bookbinding, and the book can be bound with the edge of the cover 10 protruding beyond the content page 33. It can be bound in the same format as, and has a good appearance. Further, the cover sheet 10 includes the folded pieces 16, 17, 1
Since 8 and 19 are directly adhered to the cover area 20 for reinforcement, high strength can be obtained and it is durable. And
Since it is not necessary to wrap the cardboard, which is the core material, inside the cover, it is possible to simplify the bookbinding process by omitting operations such as positioning of the core material.

By increasing or decreasing the length from each folding curve 12, 13, 14, 15 to the outer edge of the folding piece 16, 17, 18, 19 it is possible to adjust the area overlaid on the cover area 20. Therefore, the range to be reinforced can be adjusted appropriately, and the folding pieces 16, 17, 18, and 19 can be overlapped and reinforced on the entire front cover area 23 and the back cover area 24.

Next, a method of manufacturing the above cover will be described. As shown in FIG. 5, the rectangular folding curves 12, 13,
14 and 15 are pressed (rectangular folding curve forming step). At this time, the vertical folding curves 21 that divide the spine cover area 22 may be simultaneously pushed. Then, when the formation of the folding curve by the pushing is completed, the cover body 11 is cut. Although the muscle pushing and the cutting are shown as separate steps in FIG. 5, in the actual work, the muscle pushing and the cutting are simultaneously performed to improve the work efficiency.

Next, as shown in FIG. 6 (a), the left and right folding pieces 18, 19 are folded back from the folding curves 14, 15 to the side to be the inner surface of the cover sheet, and the folded back pieces 18, 19 are folded in the cover area 20. Directly adhere to (folding process).

After the folding and bonding of the left and right folding pieces 18, 19 are completed, as shown in FIG. 6B, the upper and lower folding pieces 16, 17 are folded back to the inner surface of the cover sheet, and the folded back pieces are folded back. The strips 16 and 17 are directly bonded to the cover area 20. At this time, the covering protrusions 3 at the corners
6 is covered and adhered to the edge of the corner portion.

After the folding and bonding of the folding pieces 16, 17, 18 and 19 are completed, two vertical folding curves 21 and 21 having a predetermined width are set in parallel in the left and right central portions of the cover area 20 to make both vertical foldings. The area between the curves 21 and 21 is the back cover area 22, one of the left and right sides of the back cover area 22 is the front cover area 23, and the other is the back cover area 24, which is the inner surface of the cover at a position overlapping the longitudinal folding curves 21 and 21. A crease is formed on the bent corner portion 40 by pushing from the side (bent corner portion forming step).

As shown in FIG. 7, in this bent portion forming step, a female die 43 having a groove 42 having a U-shaped cross section and a male die 44 having a U-shaped cross section which can be fitted into the groove 42 are formed. use. The width of the male die 44 is set to the width of the spine cover area 22, that is, the width of the vertical folding curves 21 and 21, and the inner dimension of the groove 42 is set to approximately twice the thickness of the cover body 11 as the male die 44. The width is set to the dimension added.

When the cover body 11 is placed at a predetermined position on the female die 43 having such a groove 42, the male die 44 is lowered and brought into contact with the spine cover region 22 on the inner surface side of the cover body 11,
When it further descends, the spine cover area 22 is pushed into the groove 42 while being pressed by the front end surface of the male die 44, and along with this, the front cover area 23 and the back cover area 24 are vertically folded curves 21, 21.
Bend upward at the border. Then, when the male die 44 is further lowered, it is bottomed, and by this bottoming, the cover sheet body 11 sandwiched between the corner portion (edge portion) of the male die 44 and the bottom corner portion of the groove 42 is pressure-molded and vertically folded. Curve 21,
A crease having a U-shaped cross-section is formed on 21.

A vertical folding curve 21, which divides the spine cover area 22,
As shown in FIG. 2 (a), when a crease is formed on 21, as shown in FIG.
Since the folded corner portion 40 of the spine cover becomes clear, the appearance is good.
In addition, when the weakened line portion 30 is formed outside the vertical folding curve 21,
As shown in FIGS. 2B and 8, it is easy to open from the weakened line portion 30, and it is possible to prevent the opened cover from being closed without permission.

FIG. 9 is a diagram in which a file using the cover is opened. This file 46 is for spine cover area 2
2, front cover area 23, back cover area 24, folding piece 16, 1
8 and the configurations of the notch 31 and the R notch 35 having a curved corner portion are the same as those in the above-described embodiments,
The difference is that a fastener such as loose-leaf paper is provided on the inner surface of the spine cover area. That is, when the fastener 47 is fixed to the inner surface of the spine cover of the cover 10, it can be used as the file 46. The fastener 47 can be appropriately selected according to the content page to be filed,
For example, a two-hole type or multi-hole type ring fastener may be used, or a type of fastener that does not need to make a hole in the content page may be used.

In the file 46 shown in FIG. 9, a pocket is attached to the inner surface of the cover by using a folded piece. The pocket 50 provided on the left front cover is the left horizontal folding piece 1
7'fold-back allowance (length from the lower lateral folding curve 13 to the tip)
Is set to be larger than the folding allowance of the other folding piece to be a pocket folding piece, the pocket folding piece is folded back to the inside surface of the cover sheet, and the side edge portion is bonded to the cover sheet area 23, and the tip portion of the pocket folding piece is formed. There is an open pocket. Also,
The pocket 51 provided on the back cover on the right side is the right vertical folding piece 1.
The folding margin of 9'is set to be larger than the folding margins of other folding pieces to form a pocket folding piece, and the folding piece for the pocket is folded back to the inside surface of the cover and the side edge portion is adhered to the back cover area 24 for the pocket. It is a pocket with an opening at the tip of the folded piece. In addition, you may reinforce by attaching the reinforcement tool 48 to each corner part of a cover.

Therefore, such pockets 50, 51
The file 46 with is for storing memos and materials in the pocket 5
Since it can be inserted and stored in 0, 51, it is easy to use, and can be easily manufactured with a single piece of thick paper, so that it can be provided at low cost.

Although the above-mentioned embodiment of the cover has been described by taking the cover of a book as an example, the cover of the present invention is not limited to this, and may be a cover of a notebook or an album, for example.

[0039]

As described above, according to the present invention, a cover having a curved corner portion can be easily produced by using only one piece of thick paper without repeating the folding operation for R, so that the safety is improved. It can be a cover page. Therefore, a book suitable for children can be provided. Then, by forming the R notch having the covering protrusion in the valley portion of the notch, the covering protrusion can cover the cut edge of the corner portion, and the appearance can be further improved.

Further, since it can be manufactured by using only one piece of thick paper and does not require a core material such as a conventional cover for bookbinding, cutting of the core material and troublesome positioning work are unnecessary, and the manufacturing is easy. . Then, by folding back the folding piece formed on the outside of the rectangular folding curve to the side that will be the inner surface of the cover and directly adhering it to the cover area, the peripheral portion of the rectangular folding line is reinforced by polymerization adhesion of the folding piece, so high strength Moreover, since the edge is rounded by folding back the folding piece, the appearance is good as in the case of the cover of the bookbinding.

Also in the case of a file, similarly, since the corner portions are curved, the safety can be improved and the appearance is good, but the production is easy. It is also easy to attach a pocket to the inner surface of the cover.

[Brief description of drawings]

FIG. 1A is a plan view of a cover body, FIG. 1B is a plan view of a folded back piece, and FIG. 1C is a sectional view taken along line AA of FIG.

FIG. 2A is a perspective view of a book bound by a cover according to the present invention in which a weak line portion is formed near the spine cover in a closed state, and FIG. 2B is a back cover of the book shown in FIG. It is a perspective view in the opened state.

FIG. 3A is a development view of a corner portion, and FIG. 3B is a perspective view of the corner portion in a state where the folding piece is folded, as viewed from the inner surface side of the cover.

FIG. 4A is a development view of a corner portion showing an embodiment of an R notch portion in which a covering protrusion is rectangular, and FIG. 4B is a corner portion showing an embodiment of an R notch portion without a covering protrusion. FIG.

5A is a perspective view showing a rectangular folding curve on a paperboard, and FIG. 5B is a perspective view showing a state in which a cover body is cut from the paperboard.

FIG. 6A is a perspective view showing a state in which the left and right folding pieces are folded, and FIG. 6B is a perspective view showing a state in which the upper and lower folding pieces are continuously folded.

FIG. 7 is a perspective view showing a state in which a crease is formed at a corner portion by a male mold and a female mold.

FIG. 8 is a perspective view showing an open state of the cover having a weakened line portion formed outside the cover region.

FIG. 9 is an explanatory diagram showing a file open state.

FIG. 10A is a plan view of a conventional cover for bookbinding,
(B) is an AA sectional view of (a).

[Explanation of symbols]

10 cover 11 cover body 12 Upper horizontal curve 13 Lower horizontal curve 14 Left vertical curve 15 Right vertical curve 16, 17, 18, 19 Folded pieces 20 Cover area 21 vertical curve 22 spine cover area 23 Front cover area 24 Back cover area 30 weak line 31 Notch 32 Center cutout on spine 33 pages 34 curved side Notch for 35 R 36 Coated protrusion 37 bend side 40 corner 41 Paperboard 42 Female groove 43 female 44 Male 46 files 47 Fastener

Claims (6)

[Claims] 1. A folding curve is set to a substantially rectangular shape on a piece of thick paper, and the outside of the folding curve is defined as upper and lower horizontal folding pieces and the left and right vertical folding pieces, and the area inside the folding curve is the cover area. age,
Two vertical folding curves with a predetermined width are set in parallel at the center of the right and left sides of this cover area, and the space between the two vertical folding curves is defined as the spine cover area. A cover having a substantially V-shaped cutout with a hypotenuse of 90 degrees or more at a portion of the folded back piece where the laterally folded back piece intersects the vertical folded back piece, the cutout portion being substantially V-shaped. A wide R that includes curved sides that cut out the corners of the cover area with curved lines
A notch for use is formed, each of the folded pieces is folded back to the inside surface of the cover sheet, and each folded piece is directly adhered to the cover area for reinforcement, and the corners of the cover area are curved. Cover to do. 2. The notch portion is formed in a substantially V-shaped valley portion,
A notch for R, which is composed of a curved side that cuts out a corner portion with a curved line, and a bending side that is cut out between the curved side and the base end portion of the oblique side in a substantially W shape to leave a covering protrusion in the middle. A part is formed, and each of the folded pieces is folded back to the side that becomes the inner surface of the cover, and each folded back piece is directly adhered to the cover area to reinforce, and the edge of the curved corner portion of the cover area is covered with the covering piece. The cover sheet according to claim 1, characterized in that. 3. The cover sheet according to claim 1, wherein a folded piece located outside the spine cover area is cut off. 4. The vertical corners on the left and right sides of the spine cover area are pressed from the side that is the inner surface of the cover to form a corner, and the front cover area and the back cover area are fragile near the vertical curve. The cover according to any one of claims 1 to 3, wherein the line portion is formed in parallel with the vertical folding curve. 5. A file, characterized in that a fastener is provided on the inner surface of the spine cover area of the cover according to any one of claims 1 to 4. 6. A pocket folding piece by setting the folding margin of at least one of the horizontal folding piece and the vertical folding piece folded back to the inner surface of the cover to be larger than the folding margin of the other folding piece, and as a folding piece for the pocket. 6. The file according to claim 5, wherein the folded piece is folded back to the inner surface of the cover sheet and the side edge portion is adhered to the cover area to form a pocket in which the tip portion of the folded piece for a pocket is opened.