JP2000034697A - Folding structure for thick paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject folding structure ensuring perfect mutual contact of both sides of a folding line when a thick paper is bent along the folding line. SOLUTION: This folding structure is afforded according to the following procedure: a thick paper P1 is cut along a folding line 10 over the whole length, the overall reverse face of the thick paper P1 is then subjected to backcoating with a resin film 20 so as to cover from one of the resulting both cut pieces 1, 2 to the other and both the cut pieces 1 and 2 are attached to each other with the resin film 20; wherein the thickness of the resin film 20 is so designed that, when the cut piece 2 is bent along the folding line 10 (cut line) so as to make contact with the surface of the resin film 20 on the other cut piece 1, both the cut pieces 1 and 2 come to mutual contact as a result that the own weight of the cut piece 2 overcome the restorative force of the resin film 20. Thus, when the thick paper P1 is folded along the folding line 10 (cut line) so as to effect mutual contact of the coated surfaces, the respective surfaces of both the cut pieces 1 and 2 are ensured to perfectly come to mutual contact.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cardboard folding structure.

[0002]

2. Description of the Related Art Many cosmetics, pharmaceuticals, etc., have their handling instructions and precautionary notes printed on the surface of their packaging boxes, but they are discarded after their contents are removed for design reasons or the boxes are taken out. In consideration of the custom, create a separate instruction manual and precautionary statement (hereinafter simply represented by instructions),
Some items are enclosed in the box.

[0003] The instruction manual is not made of thin paper, especially for cosmetics, etc., in order to give a sense of quality, and for pharmaceuticals, etc., which are used for a long period of time, in order to prevent breakage or loss. As shown in FIG. 7, the printed matter is enclosed using a cardboard P having an area slightly smaller than one surface of the box 40.

[0004] In this case, when the printing area becomes large due to the need to make the contents of the explanation detailed or to make the type larger so that it is easy to read, the paper P having an area of about one side of the box 40 is reduced. Sometimes it is not enough to print on both sides, and you need to print on three or four sides of the folded paper.

[0005] In such a case, the thick paper is shown in FIG.
Even if the fold 50 is formed by a press machine as shown in FIGS. 5A and 5B, when the paper is folded, it tends to return to its original state due to the restoring force of the cardboard P. Therefore, as shown in FIG. The bent pieces 51 and 52 are not completely covered, and it is difficult to put them in the packaging box. Also, it is bulky and inconvenient for consumers to remove the product from the box after purchasing the product.

[0006]

The problem to be solved by the present invention is shown in FIG.
As shown in FIG. 6B, when the half cut 60 is made along the bending line, as shown in FIG. 6C, the degree of opening of the two bent pieces 61 and 62 after bending as compared with the case of FIG. , But also in this case, both bent pieces 61,
62 does not face, is difficult to put in a box, and is bulky. In order to make the surface cut, the cut depth of the half cut 60 may be increased to reduce the thickness of the portion, but it is extremely difficult to cut the half cut 60 as the surface is cut. And the paper is easy to tear.

SUMMARY OF THE INVENTION It is an object of the present invention to completely cover both sides of a fold line when the cardboard is folded along the fold line.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention cuts a cardboard along its folding line over its entire length, and cuts both cut pieces from one side to the other on the same side surface. The back surface was coated with a resin film of a predetermined thickness over the entire surface over which the two cut pieces were connected.

In this case, the predetermined thickness of the resin film means that when the resin film is bent along a bending line (cutting line), the weight of one of the cut pieces overcomes the restoring force of the resin so that both cut pieces are completely formed. It is a dimensional specification that can be surfaced.

[0010] By doing so, the resin film can be processed to be thinner than the paper and is hard to break, so that the resin surface of both cut pieces comes to face the bent line formed by the resin film. When folded in the direction, both cut pieces are completely seated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
An embodiment of the present invention will be described. 1 (a) is a cardboard P ₁ in this embodiment, there is shown in cross-section perpendicular to the fold line 10 (indicated by a chain line). That is, the cardboard P _1, along the fold line 10, cut over their entire length, the rear side astride from one to the other of the two cutting pieces 1 and 2 resin film (lower surface in the figure) over the entire surface 20 Back coating with the resin film 20
Connects both cut pieces 1 and 2.

At this time, the thickness of the resin film 20 is overlapped by bending one cut piece 2 along a bending line 10 (cutting line) in a direction in which the other cut piece 1 is surface-attached to the surface of the resin film 20. In this case, the weight of the cut pieces 2 on the overlapped side overcomes the restoring force of the resin film 20 so that the cut pieces 1 and 2 come into contact with each other.

By doing so, as shown by the arrow in FIG. 1 (a), if the sheet is folded along the folding line 10 (cutting line) in the direction in which the coated surfaces are to be imposed, FIG. As shown in (b), both cut pieces 1 and 2 are completely surfaced.

[0014] The above is an illustration of the folding structure of the cardboard P ₁ in this embodiment, will now be described such cardboard P ₁ of a manufacturing process with reference to FIG. (1) First, an original cardboard P for cutting out a desired instruction
Print items are printed for each cutout area 3 of _one unit (indicated by a dashed line in FIG. 2A). (2) Next, with respect to the cardboard P _1, as shown in FIG. 2 (a), nicking along fold line 10 in the respective cutout unit 3. (3) Next, as shown in FIG. 2 (b), the back coating one surface entirely of cardboard P ₁ in the resin film 20. (4) Finally, as shown in FIG. 2 (c), each cutting unit 3 having the cutting line 10 formed in the above (2) is shot out with a press machine, and the cardboard P having the folding line 10 of the present invention is cut out. _One cut piece 3 (FIG. 2D) is obtained.

Next, as an application of this embodiment, a case of three-folding will be described. In the three-folding, two parallel folding lines are provided. As shown in FIG. 3A, the folding lines (cutting lines) are D ₁ and D _2, and the three folding surfaces partitioned by the lines are 4 and 4. 5 and 6. Also in this case, the bending lines D ₁ and D ₂ are cut along the entire length, and one surface of each of the cut pieces 4, 5, and 6, for example, the lower surface in the figure is cut into three cut pieces 4, 5, and 6. To the cut portions D ₁ and D ₂ . Since the manufacturing method is the same as that of the above-described two-fold, the description is omitted.

[0016] When folding the cardboard P ₂ of the three sheets folded, as shown in FIG. 3 (b), (c) , the respective sides of the cut pieces 4,6, the middle surface of the resin film 20 Is bent in a direction to be surface-attached to the surface of the resin film 20 of the cut piece 5. At that time, in order for the three cut pieces 4, 5, and 6 to be completely surfaced and folded, it is theoretically necessary to satisfy one of the following two conditions. In any case, the cut piece 6 on the right side of the figure is bent first.

[0017] If it is equal to the cutting width d _1, d ₂ in the folding line (cutting line) D _1, D _2, the width dimension X of each cut piece 4, 5, 6, Y, Z and X ≧ Y > Z. This is because, when the cut piece 4 to be bent for the second time is overlaid on the cut piece 6 already facing the cut piece 5, if the width Z of the cut piece 6 is equal to the width Y of the middle cut piece 5,
The left side edge of the cut piece 6 in the figure overlaps with the left side edge of the middle cut piece 5, and the cut piece 4 that is about to be bent at the lower left edge of the lower surface of the middle cut piece 5 hits the cut piece 6, and is sharply bent. Because there is no. When the widths X, Y, and Z of the three surfaces 4, 5, and 6 are made equal, the cutting widths d ₁ and d ₂ are set to d ₁ > d ₂ . This too
This is because the cut piece 4 to be bent for the second time sandwiches the cut piece 6 between the cut piece 5 and the cut piece 5, so that it is necessary that d ₁ > d ₂ by the thickness thereof.

[0018]

As described above, according to the present invention, the cardboard is cut along the entire length of the folding line, and the same side of both cut pieces is covered over the entire surface extending from one piece to the other piece. Since a resin film of a predetermined thickness is back-coated and both cut pieces are connected by the resin film, when both are bent along a bending line, both surfaces are completely imposed.

[Brief description of the drawings]

FIG. 1 (a) shows the embodiment in cross section, and FIG. 1 (b) shows the result in a perspective view.

FIGS. 2A to 2D schematically show a manufacturing process of the embodiment. FIGS.

FIGS. 3A to 3D are cross-sectional views showing three-fold embodiments.

FIG. 4 is a perspective view showing how to use cardboard.

5 (a) to 5 (c) show a conventional example and its defects.

6 (a) to 6 (c) show other conventional examples and their defects.

[Explanation of symbols]

1,2 cardboard 4,5,6 bent piece 10 bent line of cut pieces 3 units (cutting line) 20 resin film (back coating) 50 folds 51 and 52 bent piece 60 partly cut 61, 62 bent pieces P, P _1, P ₂ cardboard d _1, d ₂ cutting width X, Y, width of cut pieces of Z cardboard (bent pieces)

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takao Umegaki 2-17-17 Komatsu, Higashiyodogawa-ku, Osaka F-term in Shiseido Co., Ltd. 3E086 BA04 BA14 BA15 BB61 BB62 CA28 CA29 4L055 AJ02 FA22

Claims (1)

[Claims] 1. A cardboard is cut along its entire length along a folding line, and the same side of both cut pieces is covered with a resin film of a predetermined thickness on the entire surface extending from one piece to another piece. Folded cardboard structure that coats and connects both cut pieces with the resin film.