Packaging box containing product and document paper, and method for manufacturing the packaging box

Abstract

To provide a packaging box containing a product and document paper, which can effectively prevent the document paper from falling out of the packaging box, and to provide a method for manufacturing the packaging box containing the product and the document paper, which is excellent in manufacturing efficiency.SOLUTION: The packaging box 2 houses a product 4 and a document paper 5 inside. The document paper 5 has a first paper piece part 51 and a second paper piece part 52 folded in two and opposed to each other. In the packaging box 2, at least a part of the first paper piece part 51 is sandwiched between the main flap and the first side flap side f3, and the second paper piece part 52 is positioned closer to the center side in the height direction Z of the packaging box than the first paper piece part 51 and the first and second side flap side f3 and side f4. In the packaging box 2, the length f3 of the second paper piece portion 52 is shorter than the clearance L3 between the first side flap L2 and the second side plate 24.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a packaging box containing a product and written paper, and a method for manufacturing the packaging box. [Background technology]

[0002] A packaging box may contain a written document containing instructions for use of the product together with the product. As an example of such a packaging box, Patent Document 1 discloses an individual packaging carton in which an insertion opening is formed by swinging a swinging piece of an opening / closing piece provided on a wall, and accessories can be placed inside through the opening. After the accessories are placed inside, the swinging piece swings a return piece to close the insertion opening.

[0003] Patent Document 2 discloses an individual packaging carton in which the opening of a bag extends from one of two outer flaps provided at the opening of the box body, the outer flap closes the opening of the box body, and the outer flap is stuck with adhesive tape to create a closed state. A bag is sandwiched between the adhesive tape of the box body and the outer flap, and accessories can be stored in the bag through the opening that extends from one of the outer flaps.

[0004] Patent Document 3 also discloses a carton that includes a lid panel connected to a top panel, a cutout area on the front panel surrounded by a first break line, an access opening forming portion in the area sandwiched between the first break line and the bottom edge of the front panel and partitioned by a second break line and a fold line, and an insertion portion for inserting a piece of paper into the fold line, the lid panel covering the cutout area and being joined within the cutout area, and the piece of paper being able to be inserted through the insertion portion. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-335022 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-354232 [Patent Document 3] Japanese Patent Publication No. 2022-098588 Summary of the Invention [Problem to be solved by the invention]

[0006] In a packaging box containing a product, it is required that the document paper contained in the packaging box does not fall out of the packaging box. Furthermore, a packaging box containing a product can be manufactured by forming a blank into a three-dimensional cylindrical shape, placing the product through an opening on the bottom or top side of the cylindrical shape, and closing the opening with the bottom and top sides. The series of steps in this manufacturing method may be automated using a manufacturing device. Adding a step of placing document paper into the packaging box during the manufacturing process using this manufacturing device is difficult due to the operation of existing manufacturing devices. Therefore, from the perspective of manufacturing efficiency, it is desirable to perform the step of placing document paper into the packaging box after the sealed packaging box has been manufactured. The techniques disclosed in Patent Documents 1 to 3 have room for improvement in terms of preventing document paper from falling off and efficiently manufacturing packaging boxes containing products.

[0007] The present invention relates to a packaging box containing a product and document paper, which can effectively prevent the document paper from falling out of the packaging box. The present invention also relates to a method for manufacturing a packaging box containing a product and document paper, which is highly efficient in manufacturing. [Means for solving the problem]

[0008] The present invention relates to a packaging box containing a product and written documents, which has a depth direction and a width direction perpendicular to the depth direction and contains the product and written documents inside. In one embodiment, the packaging box preferably includes a bottom surface, a top surface opposite to the bottom surface, and a peripheral wall portion located between the bottom surface and the top surface. In one embodiment, the peripheral wall portion preferably has first and second front plates opposing each other in the depth direction, and first and second side plates opposing each other in the width direction. In one embodiment, it is preferable that the top surface portion or the bottom surface portion has a main flap connected to the upper end or lower end of one of the front panels via a fold line, a first side flap connected to the upper end or lower end of the first side panel via a fold line, and a second side flap connected to the upper end or lower end of the second side panel via a fold line. In one embodiment, it is preferable that the first side flap and the second side flap are folded so that the top surface portion or the bottom surface portion is positioned on the inner surface side of the main flap and faces the inner surface. In one embodiment, the document sheet is preferably folded in half and has a first piece of paper and a second piece of paper facing each other. In one embodiment, in the packaging box, at least a part of the first paper piece is sandwiched between the main flap and the first side flap, In one embodiment, the second piece of paper is preferably located closer to the center of the packaging box in the height direction than the first piece of paper and the first and second side flaps. In one embodiment, it is preferable that the length L2 of the second piece of paper of the packaging box is shorter than the distance L3 between the first side flap and the second side panel in the width direction.

[0009] The present invention also relates to a method for manufacturing a packaging box containing a product and written documents. In one embodiment, the packaging box preferably has a depth direction and a width direction perpendicular to the depth direction, and is provided with a bottom surface portion that serves as the contact surface, an upper surface portion that faces the bottom surface portion, and a peripheral wall portion located between the bottom surface portion and the upper surface portion. In one embodiment, the peripheral wall portion preferably has first and second front plates opposing each other in the depth direction, and first and second side plates opposing each other in the width direction. In one embodiment, it is preferable that the top surface portion or the bottom surface portion has a main flap connected to the upper end or lower end of one of the front panels via a fold line, a first side flap connected to the upper end or lower end of the first side panel via a fold line, and a second side flap connected to the upper end or lower end of the second side panel via a fold line. In one embodiment, it is preferable that the first side flap and the second side flap are folded so that the top surface portion or the bottom surface portion is positioned on the inner surface side of the main flap and faces the inner surface. In one embodiment, the manufacturing method preferably includes a box-making process in which the packaging box is assembled and the product is placed inside the packaging box, a bifolding process in which the document paper is folded in half to form a first paper piece and a second paper piece that face each other, and an insertion process in which the document paper is inserted into the packaging box after the box-making process and the bifolding process. In one embodiment, in the manufacturing method, the inserting step preferably includes inserting the doubled document paper into a gap between a first side flap and the main flap. [Effects of the Invention]

[0010] According to the product and packaging box containing document paper of the present invention, it is possible to effectively prevent the document paper from falling out of the packaging box. Furthermore, the method for manufacturing a packaging box containing a product and document paper according to the present invention provides excellent manufacturing efficiency for the packaging box. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing one embodiment of a packaging box containing a product and written paper according to the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] 3(a) and 3(b) are diagrams showing a method for manufacturing the packaging box containing the product and document paper shown in FIG. 1, and are schematic diagrams showing the box-making process. [Figure 4]4(a) to 4(c) are diagrams showing a method for manufacturing the packaging box containing the product and document paper shown in FIG. 1, and are schematic diagrams showing the insertion step. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described below based on preferred embodiments with reference to the drawings. Figures 1 and 2 show one embodiment of a packaging box containing a product and written paper (hereinafter simply referred to as a "content box") of the present invention. Content box 1 comprises a packaging box 2, a product 4, and written paper 5, and product 4 and written paper 5 are contained inside packaging box 2. The packaging box 2 of this embodiment has a hollow hexahedron shape and includes a bottom surface portion 28, an upper surface portion 27 facing the bottom surface portion 28, and a peripheral wall portion 20 located between the bottom surface portion 28 and the upper surface portion 27. The upper surface portion 27 closes one opening of the cylindrical peripheral wall portion 20, and the bottom surface portion 28 closes the other opening of the peripheral wall portion 20.

[0013] The peripheral wall 20 has an internal storage space for storing the product 4 and document paper 5, which are the contents of the packaging box 2 (see Figures 1 and 2). The internal space in the cylindrical structure of the peripheral wall 20 becomes the storage space. The peripheral wall 20 is a rectangular cylindrical body with a square horizontal cross section. The peripheral wall portion 20 is formed by a pair of front plates 21, 22 and a pair of side plates 23, 24. The pair of front plates 21, 22 face each other, and the pair of side plates 23, 24 face each other, forming a rectangular tubular shape. The pair of front plates 21, 22 have the same shape and size, and the pair of side plates 23, 24 also have the same shape and size. In this embodiment, the pair of front plates 21, 22 and the pair of side plates 23, 24 each have the same height, but the width of the pair of front plates 21, 22 (length in the width direction X, described below) is greater than the width of the pair of side plates 23, 24 (length in the depth direction Y, described below).

[0014] 1 shows the content-containing box 1 in a state where it is placed on a horizontal surface with the bottom surface 28 as the ground surface. In this state, the peripheral wall 20 stands upright from the bottom surface 28, and the standing direction, i.e., the height direction Z of the content-containing box 1, is aligned vertically. Unless otherwise specified, the following description of the content-containing box 1 will be given assuming that it is placed on a horizontal surface with the bottom surface 28 as the ground surface. The content-containing box 1 has a depth direction Y and a width direction X that is perpendicular to the depth direction Y. The depth direction Y and the width direction X are each perpendicular to a height direction Z of the content-containing box 1. The peripheral wall portion 20 has a pair of front panels 21, 22 that face each other in the depth direction Y, and a pair of side panels 23, 24 that face each other in the width direction X.

[0015] One of the pair of front plates is also referred to as the "first front plate 21" and the other as the "second front plate 22." Each of the first and second front plates 21, 22 is a rectangular plate-like portion, and is located between a pair of side plates 23, 24 in the circumferential direction of the peripheral wall portion 20 and adjacent to these side plates 23, 24. The widths of the first and second front plates 21, 22 are along the width direction X. One of the pair of side plates is also referred to as the "first side plate 23" and the other as the "second side plate 24." Each of the first and second side plates 23, 24 is a rectangular plate-like portion, and is located between the pair of front plates 21, 22 in the circumferential direction of the peripheral wall portion 20 and adjacent to these front plates 21, 22. The width of the first and second side plates 23, 24 is along the depth direction Y.

[0016] The upper surface portion 27 of this embodiment includes upper main flaps f1, f2 connected to the upper ends of the first and second front panels 21, 22 via fold lines c1, c2, and upper side flaps f3, f4 connected to the upper ends of the first and second side panels 23, 24 via fold lines c3, c4 (see FIG. 1). That is, the upper surface portion 27 includes upper main flaps f1, f2 arranged opposite each other in the depth direction Y, and a pair of upper side flaps f3, f4 arranged opposite each other in the width direction X. The pair of upper main flaps f1, f2 are rotatable via fold lines c1, c2 that form the upper edges of the first and second front panels 21, 22. The pair of upper side flaps f3, f4 are rotatable via fold lines c3, c4 that form the upper edges of the first and second side panels 23, 24. The pair of upper main flaps f1, f2 and the pair of upper side flaps f3, f4 open and close the opening at the upper end of the peripheral wall portion 20 by rotating.

[0017] The bottom surface portion 28 of this embodiment has a main flap and side flaps, similar to the top surface portion 27. More specifically, it has lower main flaps f5, f6 connected to the lower ends of the first and second front panels 21, 22 via fold lines c5, c6, and lower side flaps f7, f8 connected to the lower ends of the first and second side panels 23, 24 via fold lines c7, c8, respectively (see FIG. 3(b)). That is, the bottom surface portion 28 has lower main flaps f5, f6 arranged opposite each other in the depth direction Y, and a pair of lower side flaps f7, f8 arranged opposite each other in the width direction X. The pair of lower main flaps f5, f6 are rotatable via fold lines c5, c6 that form the lower edges of the first and second front panels 21, 22. The pair of lower side flaps f7, f8 are rotatable via fold lines c7, c8 that form the lower edges of the first and second side panels 23, 24. The pair of lower main flaps f5, f6 and the pair of lower side flaps f7, f8 open and close the opening on the lower end side of the peripheral wall portion 20 by rotating.

[0018] The bottom surface portion 28 has a configuration similar to that of the top surface portion 27. The following description of the top surface portion 27 can be appropriately applied to the bottom surface portion 28 by reversing the up and down in the height direction Z. For example, the bottom surface portion 28 can be interpreted as having a main flap (lower surface main flap) connected to the lower end of one of the front panels via a fold line, a first side flap (first lower surface side flap) connected to the lower end of the first side panel via a fold line, and a second side flap (second lower surface side flap) connected to the lower end of the second side panel via a fold line. In the following description, the "upper main flap" will also be referred to simply as the "main flap," and the "upper side flap" will also be referred to simply as the "side flap." For ease of explanation, the flaps f5, f6, f7, and f8 that constitute the bottom surface portion 28, as well as the second main flap f2, are not shown in FIGS.

[0019] Of the pair of upper main flaps f1, f2, the one connected to the first front panel 21 is also referred to as the "first upper main flap f1," and the one connected to the second front panel 22 is also referred to as the "second upper main flap f2." Additionally, of the pair of upper side flaps f3, f4, the one connected to the first side panel 23 is also referred to as the "first upper side flap f3," and the one connected to the second side panel 24 is also referred to as the "second upper side flap f4."

[0020] In this embodiment, the top surface portion 27 has first and second top surface main flaps f1, f2, with the first top surface main flap f1 folded toward the inner surface of the second top surface main flap f2. The top surface portion 27 has first and second top surface side flaps f3, f4 folded toward the inner surface of the first top surface main flap f1 so as to face the inner surface of the first top surface main flap f1. The main flaps f1, f2 and side flaps f3, f4 are folded along fold lines c1, c2, c3, c4. This causes the opening at the upper end of the peripheral wall portion 20 to be closed by the top surface portion 27. When both the first and second front panels 21, 22 have main flaps f1, f2, the side flaps f3, f4 may be folded so as to be positioned on the inner side of the main flap f1 located closer to the center in the height direction Z. In the upper surface portion 27, the first and second upper surface side flaps f3, f4 have flap opposing surfaces s3, s4 that face the inner surface of the upper surface main flap f1 in the height direction Z (see FIG. 2).

[0021] In this embodiment, the top surface portion 27 has the second main flap f2 superimposed on the outer surface (top surface) of the first main flap f1, and the two main flaps f1 and f2 are joined together with an adhesive (not shown). The second main flap f2 forms the outer surface of the top surface portion 27 and has a trapezoidal hanging portion e1 at the center of the tip of the flap f2 (see FIG. 1). The trapezoidal hanging portion e1 has slits on both sides of the trapezoid, allowing the hanging portion e1 to be folded so as to stand up from the second main flap f2. When the hanging portion e1 stands up from the second main flap f2, a semicircular opening is formed along an arc-shaped perforation formed in the center in the width direction X. By inserting a hook or the like into this semicircular opening, the content-containing box 1 can be displayed in a hanging state in a storefront or the like.

[0022] The area of ​​the upper surface main flaps f1, f2 is approximately the same as the area of ​​the opening on the upper end side of the peripheral wall portion 20. In other words, the opening on the upper end side of the peripheral wall portion 20 is mainly closed by the main flaps f1, f2. On the other hand, the area of ​​the upper surface side flaps f3, f4 is smaller than the area of ​​the opening on the upper end side of the peripheral wall portion 20. On the upper surface portion 27, the upper surface side flaps f3, f4 have tip ends that form inner ends in the width direction X that are spaced apart from each other in the width direction X (see FIG. 2).

[0023] The packaging box 2 of this embodiment has an opening-forming portion 21a formed by perforations along the approximately semicircular periphery at the upper end of the first front panel 21 (see FIG. 1). Both ends of the perforations of the opening-forming portion 21a are connected to the upper edge of the first front panel 21. When this opening-forming portion 21a is pressed with a finger or the like, the first front panel 21 breaks along the perforations. By hooking a finger in the broken portion and lifting the top surface portion 27, the packaging box 2 can be broken along the gap (ridge line) between the first main flap f1 and the first front panel 21. This allows the packaging box 2 to be opened from the top surface portion 27. In the content box 1 of this embodiment, by opening the top surface portion 27, the document paper 5, which will be described later, is exposed.

[0024] The product 4 is an article that can be contained in the packaging box 2 and is a commodity that is distributed in a state that it is contained in the packaging box 2. The product 4 of this embodiment is composed of a plurality of flat individual packages 40 (see FIG. 3(b)). The height of the product 4 in the content box 1 is smaller than the height of the packaging box 2. In the content box 1 of this embodiment, a gap is created between the product 4 and the top surface 27 in the height direction Z. From the viewpoint of making it easier to insert the document paper 5 described below, the height difference between the packaging box 2 and the product 4 is preferably 1 mm or more and 33 mm or less, more preferably 1 mm or more and 10 mm or less, and even more preferably 2 mm or more and 4 mm or less.

[0025] The type of product 4 is not particularly limited, and examples include daily necessities such as heating devices, cosmetics, hair care products, processed foods, beverages, seasonings, sweets, toys, books, CDs and DVDs containing music or videos, electronic information terminals such as smartphones, electronic components, etc.

[0026] The document 5 is a paper document containing information about the product 4. The information about the product 4 is an instruction manual for the product 4, or an attached document if the product 4 is a medical device or a pharmaceutical. The document paper 5 is a strip of paper having a width less than the length in the depth direction Y of the packaging box 2. The document paper 5 may be an originally strip-shaped piece of paper, or may be a piece of paper that has been folded once or multiple times to form a strip. From the viewpoint of making it easier to insert the document paper 5 described later and from the viewpoint of the "turning over" effect of the document paper 5 folded in half, the difference between the length in the depth direction Y of the packaging box 2 and the width of the document paper 5 is preferably 8 mm or more and 17 mm or less, and more preferably 11 mm or more and 13 mm or less.

[0027] The document paper 5 has a folding portion 53 that folds the strip of paper in half, and a first piece of paper 51 and a second piece of paper 52 that are folded in half and face each other (see FIG. 2). The document paper 5 is folded into a V shape via the folding portion 53, with the first piece of paper 51 and the second piece of paper 52 forming both sides of the V. In the document paper 5 of this embodiment, the first ticket 51 and the second ticket 52 have the same width, but the widths may be different.

[0028] The contents box 1 contains a product 4 and paper documents 5 in a packaging box 2 (see FIGS. 1 and 2), with the paper documents 5 arranged between the top surface 27 and the product 4 in the height direction Z. In this state, at least a portion of the first piece of paper 51 is sandwiched between the main flap f1 and the first side flap f3. More specifically, the end of the first piece of paper 51 opposite the folded portion 53 (hereinafter also referred to as the "opposite end") is sandwiched between the first top main flap f1 located toward the center in the height direction Z and the flap-facing surface s3 of the first top side flap f3. In this case, it is preferable that the first piece of paper 51 be sandwiched between the first top main flap f1 and the flap-facing surface s3 over the entire range in the width direction X (see FIG. 2). When sandwiched between the main flap f1 and the first side flap f3, the first piece of paper 51 is preferably in direct contact with the main flap f1 or the first side flap f3. This configuration is effective in that the sandwiched state is more easily maintained due to contact friction with the main flap f1 or the first side flap f3.

[0029] In addition, in the stored state, the second piece of paper 52 is located closer to the center of the packaging box 2 in the height direction Z than the first piece of paper 51 and the first and second side flaps f3, f4. In this embodiment, the second piece of paper 52 is located lower than the first piece of paper 51 and the first and second top side flaps f3, f4.

[0030] Since the document paper 5 is bent in a V-shape, the extending directions of the first ticket 51 and the second ticket 52 are slightly inclined with respect to the width direction X (see FIG. 2). In the contents-containing box 1, the length L2 of the second piece of paper 52 is shorter than the distance L3 (hereinafter also referred to as the "rear distance L3") between the side flap f1 and the second side panel 24 in the width direction X (see Figure 2, L3 > L2). The rear separation distance L3 is the length in the width direction X between the first side flap of either the top surface portion 27 or the bottom surface portion 28 that faces the document paper 5 inside the packaging box 2 and the second side panel 24. The length L2 of the second piece of paper 52 is the extension length of the second piece of paper 52, and is the length from the edge of the second piece of paper 52 on the folded portion 53 side to the edge opposite the folded portion 53.

[0031] To further improve the fall-off prevention effect described below, the length L2 of the second piece of paper 52 is preferably 10% to 95% of the rear separation distance L3, and more preferably 75% to 95%. From the same viewpoint as above, the difference between the length L2 of the second piece of paper portion 52 and the rear separation distance L3 is preferably 4 mm or more and 79 mm or less, and more preferably 5 mm or more and 29 mm or less.

[0032] In the contents box 1 of this embodiment, at least a portion of the first piece of paper 51 is sandwiched between the main flap f1 and the first side flap f3 between the top surface 27 and the product 4, and the second piece of paper 52 is located closer to the center in the height direction Z than the first piece of paper 51 and the first and second side flaps f3 and f4. Even if the first piece of paper 51 protrudes from the gap between the folded portion c3 of the first side flap f3 and the main flap f1, the second piece of paper 52 is likely to slip closer to the center (lower) in the height direction Z than the first side flap f3. In other words, the second piece of paper 52 acts as a "flap" by sandwiching the first side flap f3, effectively preventing the entire document paper 5 from flying out of the packaging box 2 and falling out. This effect is also referred to as the "fall-out prevention effect." In addition, since the rear separation distance L3 is shorter than the length L2 of the second piece of paper 52, the position of the second piece of paper 52 can be stably maintained closer to the center in the height direction Z than the first side flap f3.

[0033] From the perspective of further improving the peeling inhibition effect, it is preferable that the length L1 of the first piece portion 51 is longer than the back-side separation distance L3 (see FIG. 2, L3 < L1). Thereby, the opposite end portion of the first piece portion 51 is likely to stay on the flap opposing surface s3 of the first side flap f3, and the second piece portion 52 is likely to maintain the role of the "return". The length L1 of the first piece portion 51 is the extending length of the first piece portion 51, and is the length from the edge on the bent portion 53 side of the first piece portion 51 to the edge on the side opposite to the bent portion 53. From the same perspective as above, the back-side separation distance L3 is preferably 60% or more and 75% or less, more preferably 65% or more and 70% or less of the length L1 of the first piece portion 51. Also, the difference between the back-side separation distance L3 and the length L1 of the first piece portion 51 is preferably 22 mm or more and 59 mm or less, more preferably 29 mm or more and 47 mm or less.

[0034] In the inner box 1 of the present embodiment, the extending direction of the first side flap f3 is slightly inclined with respect to the width direction X (see FIG. 2). It is preferable that the total length of the length L4 of the first side flap f3 and the length L1 of the first piece portion 51 is longer than the separation distance L5 between the first and second side plates 23, 24 in the width direction X (hereinafter, also referred to as "side plate separation distance L5") [see FIG. 2, L5 < (L4 + L1)]. Thereby, the opposite end portion of the first piece portion 51 is likely to stay on the flap opposing surface s3 of the first side flap f3, and the second piece portion 52 is likely to maintain the role of the "return". The length L4 of the first side flap f3 is the extending length of the first side flap f3, and is the length from the folding line c3 to the leading edge of the first side flap f3. From the same perspective as above, the side plate separation distance L5 is preferably 60% or more and 80% or less, more preferably 65% or more and 75% or less of the total length of the length L4 of the first side flap f3 and the length L1 of the first piece portion 51. Also, the difference between the side plate separation distance L5 and the total length of the length L4 of the first side flap f3 and the length L1 of the first piece portion 51 is preferably 31 mm or more and 83 mm or less, more preferably 42 mm or more and 67 mm or less.

[0035] From the perspective of facilitating the maintenance of a state in which a part of the first paper piece portion 51 is sandwiched between the main flap f1 and the first side flap f3, the length L4 of the first side flap f3 is preferably shorter than the length L1 of the first paper piece portion 51. In this case, the length L4 of the first side flap f3 is preferably 35% or more and 55% or less, more preferably 40% or more and 50% or less of the length L1 of the first paper piece portion 51. From the same perspective as above, the difference between the length L4 of the first side flap f3 and the length L1 of the first paper piece portion 51 is preferably 45 mm or more and 102 mm or less, more preferably 55 mm or more and 83 mm or less.

[0036] From the perspective of making it easier for the second paper piece portion 52 to play the role of "returning", it is preferable that the length L2 of the second paper piece portion 52 is shorter than the length L1 of the first paper piece portion 51 (L2 < L1). In this case, the length L1 of the first paper piece portion 51 is preferably 120% or more and 140% or less, more preferably 125% or more and 135% or less of the length L2 of the second paper piece portion 52. Also, the difference between the length L1 of the first paper piece portion 51 and the length L2 of the second paper piece portion 52 is preferably 21 mm or more and 36 mm or less, more preferably 25 mm or more and 32 mm or less.

[0037] Next, regarding the manufacturing method of the product and the packaging box containing document papers according to the present invention, the manufacturing method of the above-mentioned inner box 1 will be described as an example. The manufacturing method of the present embodiment includes a box manufacturing process for manufacturing the box and accommodating the product 4, a two-fold process for folding the belt-like document paper 5 in half, and an insertion process for inserting the document paper 5 into the packaging box 2.

[0038] Schematic diagrams of the box manufacturing process are shown in FIGS. 3(a) and (b). The box manufacturing process assembles the packaging box 2 from a single blank and accommodates the product 4 inside the packaging box 2. The blank can be easily obtained by punching and cutting a single thin plate-shaped paper sheet material. By performing creasing processes such as score lines and cutting processes on the blank, each part such as the front panel, side panels, main flap, side flap, etc., and folding lines can be formed at appropriate positions.

[0039] In the box-making process of this embodiment, a flat box plate 2A shown in Fig. 3(a) is obtained from a paper blank. The flat box plate 2A is in a state where a front plate, in which a first front panel 21 and a side panel 23 are continuous in the planar direction, and a back plate, in which a second front panel 22 and a side panel 24 are continuous in the planar direction, overlap and are folded into a flat plate shape (see Fig. 3(a)). In the flat box plate 2A, the front plate and the back plate overlap in the thickness direction of the flat box 2A, and the first and second side panels 23, 24 are connected to both sides of the first front panel 21, and the first and second side panels 23, 24 are connected to both sides of the second front panel 22.

[0040] In the box-making process of this embodiment, a flat box plate 2A is unfolded into a rectangular cylindrical shape to obtain a cylindrical box body 2B shown in Fig. 3(b). This unfolding operation forms a peripheral wall portion 20 surrounded on all four sides by a pair of front plates 21, 22 and a pair of side plates 23, 24. In the box-making process of this embodiment, the product 4 is placed in the internal space of the peripheral wall portion 20 of the cylindrical box body 2B through an opening at the lower end of the peripheral wall portion 20. Then, the lower side flaps f7, 8 and the lower main flaps f5, f6 are folded along fold lines c5, c6, c7, and c8 to form the bottom portion 28. The upper side flaps f3, 4 and the upper main flaps f1, f2 are folded along fold lines c1, c2, c3, and c4 to form the top portion 27. In this manner, the openings at the upper and lower ends of the peripheral wall portion 20 are closed by the top portion 27 and the bottom portion 28. This box-making process produces a packaging box 2 containing the product 4. The packaging box 2 produced in the box-making process may have a sealing seal made of a separate member attached to the top or bottom main flaps.

[0041] In the manufacturing method of this embodiment, the folding in half step is performed before the inserting step. The folding in half step may be performed before the box making step as long as it is performed before the inserting step, or may be performed after the box making step. Before the folding in half step, the document paper 5 is folded into a strip according to the shape of the document paper. In the folding in half step, the strip-shaped document paper 5 is folded in half to form a first piece of paper 51 and a second piece of paper 52 that face each other. In order to make it easier for the second piece of paper 52 to perform its role as a "turn-over," it is preferable to fold the document paper 5 in half during the folding process so that the length L2 of the second piece of paper is shorter than the length L1 of the first piece of paper.

[0042] In the manufacturing method of this embodiment, an inserting step is performed after the box-making step and the folding step. In the inserting step, the document paper 5 folded in half is inserted into the gap (hereinafter also referred to as the "insertion gap") between the first side flap f3 and the main flap f1 (see FIGS. 4(a) to 4(c)). In other words, the document paper 5 is inserted into the sealed packaging box 2. This inserting step can be preferably applied even when the box-making step is automated by a manufacturing device, and is effective from the viewpoint of manufacturing efficiency of the contents-filled box 1.

[0043] In the manufacturing method of this embodiment, the insertion step is performed using a flattening jig 3. The flattening jig 3 is a strip-shaped jig with a width less than the length of the packaging box 2 in the depth direction Y. A thin plate made of synthetic plastic or metal can be used as the flattening jig 3. In the insertion step of this embodiment, the document paper 5 is inserted into the insertion gap together with the flattening jig 3, with the flattening jig 3 sandwiched between the first piece of paper 51 and the second piece of paper 52 (see Figures 3(a) and (b)). This simplifies the insertion step. The flattening jig 3 inserts the document paper 5 into the packaging box 2 by pressing the leading end of the flattening jig 3 in the insertion direction against the folded portion 53 of the document paper 5.

[0044] In the insertion step, it is preferable to insert the document paper 5 so that the second piece of paper 52 is positioned closer to the center of the packaging box 2 in the height direction Z than the first piece of paper 51. This allows the second piece of paper 52 to better fulfill its role as the "turn-over" described above. From the same viewpoint as above, it is preferable that in the insertion step, the document paper 5 is inserted into the insertion gap from the folded portion 53 side.

[0045] In the insertion process, the document paper 5 is inserted further in the width direction X, and after the opposite end of the second piece-of-paper portion 52 passes over the first side flap f3, the gap between the first piece-of-paper portion 51 and the second piece-of-paper portion 52 opens on the side of the folding portion 53. As a result, the second piece-of-paper portion 52 is positioned closer to the center in the height direction Z than the first side flap f3. The flattening jig 3 is further inserted until the folded portion 53 of the document paper 5 reaches the second side panel 24, after which the flattening jig 3 is pulled out of the insertion gap. This positions the opposite end of the first piece of paper 51 on the flap-facing surface s3 of the first side flap f3 (see Figure 3(c)). In this way, the contents box 1 can be manufactured.

[0046] In the insertion process, the first side flap f3 is rotated toward the center in the height direction Z around the fold line c3 as the document paper 5 is inserted through the insertion gap. After the flattening jig 3 is pulled out in the insertion process, the first side flap f3 preferably returns to its original height around the fold line c3. This allows the "turned-up" of the second piece of paper 52 to be better maintained. To further improve the restoring force, the thickness of the first side flap f3 is preferably 0.3 mm or more and less than 1.0 mm, more preferably 0.4 mm or more and 0.5 mm or less. The thicknesses of the front panel, side panels, and main flap of the packaging box 2 may be the same as the thickness of the first side flap f3.

[0047] The present invention is not limited to the above-described embodiment and can be modified as appropriate. For example, when storing document paper 5 between the top surface portion 27 and the product 4 in the height direction Z, the bottom surface portion 28 may be formed by a one-touch bottom instead of being formed by overlapping a main flap and a side flap. In addition, the contents box 1 may store document paper 5 between the bottom surface 28 and the product 4 in the height direction Z, or may store document paper 5 between the top surface 27 and the product 4 in the height direction Z, and between the bottom surface 28 and the product 4. [Explanation of symbols]

[0048] 1. Packaging box containing the product and documents (content box) 2 packaging box 2A box flat plate 2B Box tube body 3 Flat jig 4 products 20 Peripheral wall section 21 1st front plate 22 2nd front plate 23 1st side plate 24 Second side plate 27 Top part 28 Bottom part f1 First upper main flap f2 Second upper main flap f3 First upper side flap f4 Second upper side flap f5 1st lower main flap f6 Second lower main flap f7 1st lower side flap f8 Second lower side flap 5 Document Paper 51 1st piece of paper 52 2nd piece of paper 53 Bend part X Width direction Y depth direction Z height direction

Claims

1. A packaging box containing a product and document paper, the packaging box having a depth direction and a width direction perpendicular to the depth direction, and containing the product and document paper therein, The container has a bottom surface, a top surface opposite to the bottom surface, and a peripheral wall located between the bottom surface and the top surface, the peripheral wall portion has first and second front plates opposed to each other in the depth direction and first and second side plates opposed to each other in the width direction, The top surface portion or the bottom surface portion is a main flap connected to an upper end or a lower end of one of the front panels via a fold line, a first side flap connected to an upper end or a lower end of a first side panel via a fold line, and a second side flap connected to an upper end or a lower end of a second side panel via a fold line, a first side flap and a second side flap are folded so as to be positioned on an inner surface side of the main flap and to face the inner surface; the document paper is folded in half and has a first piece of paper and a second piece of paper facing each other; In the packaging box, At least a portion of the first paper piece is sandwiched between the main flap and the first side flap, The second paper piece is located closer to the center of the packaging box in the height direction than the first paper piece and the first and second side flaps, A packaging box containing a product and document paper, wherein the length L2 of the second piece of paper is shorter than the distance L3 between the first side flap and the second side panel in the width direction.

2. 2. The packaging box according to claim 1, wherein the length L1 of the first piece of paper is longer than the distance L3 between the first side flap and the second side panel in the width direction.

3. 3. The packaging box containing a product and document paper according to claim 1 or 2, wherein a length L2 of the second paper piece is shorter than a length L1 of the first paper piece.

4. 3. A packaging box containing a product and document paper as described in claim 1 or 2, wherein the total length of the length L4 of the first side flap and the length L1 of the first paper piece portion is longer than the separation distance L5 between the first and second side panels in the width direction.

5. 3. The packaging box containing a product and document paper according to claim 1, wherein the top surface portion has the main flap and first and second side flaps.

6. 3. The packaging box containing a product and document paper according to claim 1 or 2, wherein the first piece of paper is in direct contact with the main flap or the first side flap.

7. the first side flap has an opposing surface facing the main flap, 3. The packaging box containing a product and document paper according to claim 1, wherein at least a portion of the first piece of paper is sandwiched between the main flap and the entire width of the opposing surface.

8. A method for manufacturing a packaging box containing a product and document paper, The packaging box has a depth direction and a width direction perpendicular to the depth direction, and includes a bottom surface portion, an upper surface portion opposite to the bottom surface portion, and a peripheral wall portion located between the bottom surface portion and the upper surface portion, the peripheral wall portion has first and second front plates opposed to each other in the depth direction and first and second side plates opposed to each other in the width direction, The top surface portion or the bottom surface portion is a main flap connected to an upper end or a lower end of one of the front panels via a fold line, a first side flap connected to an upper end or a lower end of a first side panel via a fold line, and a second side flap connected to an upper end or a lower end of a second side panel via a fold line, a first side flap and a second side flap are folded so as to be located on an inner surface side of the main flap and to face the inner surface; The method includes a box-making process of assembling the packaging box and storing the product in the packaging box, a bifolding process of folding the document paper in half to form a first paper piece and a second paper piece that face each other, and an inserting process of inserting the document paper into the packaging box after the box-making process and the bifolding process. In the inserting step, the folded document is inserted into the gap between the first side flap and the main flap.

9. In the folding step, the document is folded so that a length L2 of the second piece of paper is shorter than a length L1 of the first piece of paper, 9. The method for manufacturing a product and a packaging box containing the document paper according to claim 8, wherein in the inserting step, the document paper is inserted so that the second piece of paper is positioned closer to the center of the packaging box in the height direction than the first piece of paper.

10. A method for manufacturing a packaging box containing a product and document paper as described in claim 8 or 9, wherein in the insertion process, the document paper is inserted into the gap together with the flattening jig while the flattening jig is sandwiched between the first paper piece and the second paper piece.

Images