Packaging box

Abstract

To provide a packaging box which has good usability, while securing a display part capable of displaying necessary information to be sufficiently wide.SOLUTION: A packaging box 1 includes: a cylindrical body 11 having a fourth side surface plate 24 and a second side surface plate 22 arranged oppositely, for storing a content; a first page piece 202 positioned above the fourth side surface plate 24, and connected to the cylindrical body 11 via first break lines 201a, 201b so as not to be opened / closed; and a second page piece 25 provided between the fourth side surface plate 24 and the first page piece 202. Then, by braking the first brake lines 201a, 201b, the first page piece 202 and the second page piece 25 become openable / closable with respect to the cylindrical body 11, and the opening directions of the first page piece 202 and the second page piece 25 are mutually the same.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a packaging box. [Background technology]

[0002] In order to reduce paper consumption, there is a growing need to include a description of the contents on packaging boxes. However, it is difficult to ensure sufficient space for displaying the description on general packaging boxes. To address this issue, a packaging box described in Patent Document 1, for example, is known as an invention that expands the display space on packaging boxes.

[0003] The packaging box described in Patent Document 1 includes a first tubular member capable of accommodating an item therein, a pair of closing sections that close both openings of the first tubular member, and a second tubular member that covers the outer surface of the first tubular member and has a portion fixed to the first tubular member. The first tubular member also has a lid section defined by a break line on its upper surface. The second tubular member also has a separation break line that can be broken to unfold the box, exposing the opening of the first tubular member to the outside. With this configuration, when the second tubular member is unfolded, the inner surface of the second tubular member is exposed to the outside. Therefore, the inner surface of the second tubular member can be used as a display space for displaying necessary information, such as a description of the contents. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-94121 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the packaging box described in Patent Document 1 requires a large space for unfolding because the front, top, and back of the second tubular member are unfolded in a continuous manner. Furthermore, the description of the contents must be written in a single large space defined by the inner surface of the second tubular member, and because the space is bent in the middle, it is difficult to read the description of the contents. For these reasons, the packaging box described in Patent Document 1 has the problem of being difficult to use.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a packaging box that is easy to use while ensuring a sufficiently large display area on which necessary information such as a description of the contents can be displayed. [Means for solving the problem]

[0007] These objects can be achieved by the present invention as set forth in (1) to (9) below.

[0008] (1) A cylindrical body having a first face plate and a second face plate arranged opposite to each other and configured to accommodate contents; a first page strip located on the first face plate and unopenably connected to the cylinder via a first break line; a second page strip disposed between the first face plate and the first page strip; By breaking the first break line, the first page piece and the second page piece can be opened and closed relative to the cylindrical body; A packaging box characterized in that the first page piece and the second page piece open in the same direction.

[0009] (2) In a plan view of the first panel, the second page piece is smaller than the first page piece; The packaging box according to (1) above, wherein the second page piece is entirely enclosed within the first page piece.

[0010] (3) In a plan view of the first panel, the second page strip is larger than the first page strip; The packaging box according to (1) above, wherein a portion of the second page piece is exposed from the first page piece.

[0011] (4) The packaging box according to (1) above, wherein the opening and closing axes of the first page piece and the second page piece each overlap with a side of the first panel.

[0012] (5) The first panel has a cover piece defined by a second break line, The packaging box according to (4) above, wherein the lid piece opens by breaking the second breaking line, and the cylindrical body is opened.

[0013] (6) The packaging box according to (5) above, wherein the flap opens and closes along the side in the opened state.

[0014] (7) A lid is provided extending from an end of the first panel and is joined to the back surface of a tear strip defined by a third breaking line on the second panel, thereby sealing one opening of the cylindrical body. The packaging box according to (4) above, wherein the lid is opened by breaking the third breaking line, and the cylindrical body is unsealed.

[0015] (8) In a state where the first break line is broken, The packaging box according to (1) above, which has an opening / closing restricting portion that restricts opening and closing of the first page piece and the second page piece relative to the cylindrical body.

[0016] (9) Formed from a single blank sheet; In a state where the blank sheet is unfolded, a cylindrical body forming portion including the first face plate and the second face plate aligned in a first direction; a first page plate extending from one end of the cylindrical body forming portion in the first direction and including the first page strip defined by the first break line; a first folding line that separates the cylindrical body forming portion and the first page board and forms an opening / closing axis of the first page strip; the second page strip extending from the end of the cylindrical body forming portion on the other side in the first direction; a second fold line that separates the cylindrical body forming portion and the second page strip and forms an opening / closing axis of the second page strip; the second page strip is folded back along the second fold line relative to the cylinder-forming portion and superimposed on the first face plate; The first page plate is folded squarely along the first fold line relative to the cylindrical body forming portion and overlapped with the first panel and the second page piece from the second fold line side, and is joined to the first panel at a portion located around the first page piece and not overlapping with the second page piece. [Effects of the Invention]

[0017] The packaging box of the present invention has a first page piece and a second page piece that can be used as a display area that can display necessary information. This results in a packaging box with a sufficiently wide display area. Furthermore, the first page piece and the second page piece are arranged one on top of the other on the first panel and open and close like a booklet relative to the cylindrical body. This allows the first page piece and the second page piece to be opened and closed in a space-saving manner, resulting in a packaging box that is easy to use. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a development view of a packing box according to a first embodiment, seen from the front side. [Figure 2] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 3] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 4] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 5] FIG. 10 is a perspective view for explaining a method for assembling the packaging box. [Figure 6] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 7] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 8] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 9] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 10] FIG. 10 is a perspective view illustrating a method for resealing the packaging box. [Figure 11] FIG. 10 is a perspective view illustrating another method for resealing the packaging box. [Figure 12] FIG. 10 is a development view of a packing box according to a second embodiment, seen from the front side. [Figure 13] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 14] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 15] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 16] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 17] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 18] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 19] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 20] FIG. 10 is a perspective view illustrating a method for resealing the packaging box. [Figure 21] FIG. 11 is a development view of a packing box according to a third embodiment, seen from the front. [Figure 22] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 23] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 24] FIG. 10 is a plan view for explaining a method of assembling the packaging box. [Figure 25] FIG. 10 is a perspective view for explaining a method for opening the packaging box. [Figure 26] FIG. 10 is a development view of a packing box according to a fourth embodiment, seen from the front. [Figure 27]FIG. 2 is a perspective view of an assembled packaging box. [Figure 28] FIG. 10 is a perspective view showing a modified example of the packaging box. DETAILED DESCRIPTION OF THE INVENTION

[0019] First Embodiment The packaging box 1 shown in FIG. 1 is formed by assembling box-body forming pieces 10 that are integrally formed by punching out a paper blank sheet. FIG. 1 is a development view of the box-body forming pieces 10 as seen from the front side. For ease of explanation, the upper side in FIG. 1 will be referred to as "top" and the lower side as "bottom." Directions that are perpendicular to each other will be referred to as the horizontal direction (first direction) and the vertical direction (second direction). The horizontal direction is along the horizontal direction on the paper surface of FIG. 1, and the vertical direction is along the vertical direction (up-down direction) on the paper surface of FIG. 1.

[0020] The box-forming piece 10 has a first side panel 21, a second side panel 22, a third side panel 23, and a fourth side panel 24 arranged side by side in the horizontal direction. These first to fourth side panels 21 to 24 constitute a cylinder-forming section 110 for forming the cylinder 11 (described later). The first to fourth side panels 21 to 24 are each a rectangle extending vertically. The first side panel 21 and the third side panel 23 have substantially the same shape and form a pair of opposing surfaces when the packaging box 1 is assembled. Similarly, the second side panel 22 and the fourth side panel 24 have substantially the same shape and form a pair of opposing surfaces when the packaging box 1 is assembled. The horizontal lengths of the first and third side panels 21 and 23 are shorter than the horizontal lengths of the second and fourth side panels 22 and 24. Therefore, the packaging box 1 has a flattened shape in the direction in which the second and fourth side panels 22 and 24 are aligned. In this embodiment, the fourth side plate 24 constitutes the "first panel" of the present invention, and the second side plate 22 constitutes the "second panel" of the present invention.

[0021] The first side panel 21, the second side panel 22, the third side panel 23, and the fourth side panel 24 are separated by fold lines 31, 32, and 33 extending in the vertical direction. Specifically, the first side panel 21 and the second side panel 22 are separated by the fold line 31, the second side panel 22 and the third side panel 23 are separated by the fold line 32, and the third side panel 23 and the fourth side panel 24 are separated by the fold line 33.

[0022] Box-forming piece 10 also has a first page plate 20 extending from the end of first side panel 21 opposite second side panel 22, i.e., the left end in FIG. 1, and a second page piece 25 extending from the end of fourth side panel 24 opposite third side panel 23, i.e., the right end in FIG. 1. Therefore, box-forming piece 10 is configured such that, from left to right, first page plate 20, first side panel 21, second side panel 22, third side panel 23, fourth side panel 24, and second page piece 25 are arranged side by side in the horizontal direction. Furthermore, first page plate 20 and first side panel 21 are separated by a fold line 30 (first fold line) extending vertically, and second page piece 25 and fourth side panel 24 are separated by a fold line 34 (second fold line) extending vertically.

[0023] The first page plate 20 is a rectangle extending vertically, and has approximately the same shape as the second and fourth side plates 22, 24. In contrast, the second page piece 25 is a rectangle extending vertically with chamfered corners (in other words, an octagon), and its length in the vertical and horizontal directions is slightly smaller than that of the second and fourth side plates 22, 24. In other words, the second page piece 25 is slightly smaller than the first page plate 20.

[0024] As will be described later, when the box-forming piece 10 is assembled, the first page plate 20 and the second page piece 25 are arranged overlapping on the fourth side panel 24 (first side panel), and the second page piece 25 is sandwiched between the first page plate 20 and the fourth side panel 24. Therefore, as described above, by making the second page piece 25 slightly smaller than the first page plate 20, the second page piece 25 is less likely to protrude from between the first page plate 20 and the fourth side panel 24, making it easier to assemble the packaging box 1 and improving the aesthetic appearance of the packaging box 1.

[0025] Furthermore, the box-forming piece 10 has a first flap 41 extending from the upper end of the first side panel 21, a second flap 43 extending from the upper end of the third side panel 23, and a third flap 44 extending from the upper end of the fourth side panel 24. The first side panel 21 and the first flap 41 are separated by a fold line 61 extending in the horizontal direction, the third side panel 23 and the second flap 43 are separated by a fold line 63 extending in the horizontal direction, and the fourth side panel 24 and the third flap 44 are separated by a fold line 64 extending in the horizontal direction.

[0026] The box-forming piece 10 also has a first sealing body 50 for sealing the upper opening of the cylindrical body 11. The first sealing body 50 has a first sealing piece 501 extending from the upper end of the first page board 20, and a first insertion piece 502 extending from the upper end of the first sealing piece 501. The first page board 20 and the first sealing piece 501 are separated by a fold line 601 extending in the horizontal direction, and the first sealing piece 501 and the first insertion piece 502 are separated by a fold line 602 extending in the horizontal direction.

[0027] Additionally, the box-forming piece 10 has a fourth flap 71 extending from the lower end of the first side panel 21, a fifth flap 73 extending from the lower end of the third side panel 23, and a sixth flap 74 extending from the lower end of the fourth side panel 24. The first side panel 21 and the fourth flap 71 are separated by a fold line 91 extending in the horizontal direction, the third side panel 23 and the fifth flap 73 are separated by a fold line 93 extending in the horizontal direction, and the fourth side panel 24 and the sixth flap 74 are separated by a fold line 94 extending in the horizontal direction.

[0028] The box-forming piece 10 also has a second sealing body 80 for sealing the lower opening of the cylindrical body 11. The second sealing body 80 has a second sealing piece 801 extending from the lower end of the first page board 20, and a second insertion piece 802 extending from the lower end of the second sealing piece 801. The first page board 20 and the second sealing piece 801 are separated by a fold line 901 extending in the horizontal direction, and the second sealing piece 801 and the second insertion piece 802 are separated by a fold line 902 extending in the horizontal direction.

[0029] Further, the fourth side panel 24 has a lid piece 242 defined thereon by second break lines 241 formed at each corner. The lid piece 242 is a rectangle (in other words, an octagon) extending vertically with each corner chamfered, and its vertical and horizontal lengths are approximately the same as those of the fourth side panel 24. However, the shape of the lid piece 242 is not particularly limited. The lid piece 242 has a portion that extends from above the fourth side panel 24 onto the adjacent third side panel 23 on the left, and this portion constitutes an opening piece 242a used to open the packaging box 1. As will be described later, inserting a finger into the opening piece 242a and lifting the lid piece 242 breaks the second break line 241, thereby opening the lid piece 242. The opened lid piece 242 opens and closes about the fold line 34 without separating from the box-body forming piece 10.

[0030] Although not shown, the portion of the fold line 33 that is included in the flap piece 242 is configured as a perforation line. This allows the tear-open piece 242a to move easily around the fold line 33, improving operability when opening. Similarly, the portion of the fold line 34 that is included in the flap piece 242 is configured as a perforation line. This allows the flap piece 242 to move easily around the fold line 34, making it easier to open and close the flap piece 242. However, this is not limiting.

[0031] Furthermore, at each corner of the fourth side panel 24 (the portion located around the lid piece 242), there are formed a triangular connecting piece 243a connecting the third side panel 23 and the third flap 44, a triangular connecting piece 243b connecting the second page piece 25 and the third flap 44, a triangular connecting piece 243c connecting the third side panel 23 and the sixth flap 74, and a triangular connecting piece 243d connecting the second page piece 25 and the sixth flap 74. Therefore, even if the second break line 241 is broken as described above, the third and sixth flaps 44, 74 and the second page piece 25 will not separate from the third side panel 23. Specifically, even if the second break line 241 is broken, the third side panel 23 and the third and sixth flaps 44, 74 remain connected via the connecting pieces 243a, 243c, and the third and sixth flaps 44, 74 and the second page strip 25 remain connected via the connecting pieces 243b, 243d. Therefore, collapse of the packaging box 1 due to the break of the second break line 241 can be prevented.

[0032] The connecting pieces 243a, 243b, 243c, and 243d are each a right-angled isosceles triangle. The connecting pieces 243a and 243c located on the fold line 33 side are slightly smaller than the connecting pieces 243b and 243d located on the fold line 34 side. The connecting pieces 243a, 243b, 243c, and 243d each have a fold line formed along the bisector of the apex angle. The deformation of the fold line effectively prevents uneven creases from being formed when excessive force is applied to the packaging box 1, which would impair the aesthetic appearance of the packaging box 1. However, the shapes of the connecting pieces 243a, 243b, 243c, and 243d are not particularly limited. The fold line may also be omitted.

[0033] An opening H1 is formed on the upper side of the lid piece 242, specifically between the lid piece 242 and the third flap 44, overlapping with the fold line 64 and spanning the fourth side panel 24 and the third flap 44, and an opening H2 is formed on the lower side of the lid piece 242, specifically between the lid piece 242 and the sixth flap 74, overlapping with the fold line 94 and spanning the fourth side panel 24 and the sixth flap 74. A recessed portion 242b is formed at the upper end of the lid piece 242, recessed into the lid piece 242 by the opening H1. The recessed portion 242b is used to hook a finger when re-opening the packaging box 1.

[0034] Furthermore, a first page strip 202 is defined on the first page plate 20 by a pair of first break lines 201a, 201b formed along the fold lines 601, 901. The first page strip 202 is a rectangle (in other words, a hexagon) that extends vertically and has two chamfered corners located on the first side panel 21 side, and its vertical and horizontal lengths are approximately the same as those of the first page plate 20. As will be described later, by hooking a finger on the free end (left end) of the first page strip 202 and lifting the first page strip 202, the first break lines 201a, 201b break, and the first page strip 202 becomes openable and closable. The openable first page strip 202 opens and closes around the fold line 30. In other words, the fold line 30 forms the opening and closing axis of the first page strip 202.

[0035] Furthermore, at the two corners of the first page board 20 opposite the first side panel 21, cutout pieces 204a and 204b are formed by first breaking lines 201a and 201b.

[0036] Furthermore, two corners of the first page plate 20 on the side of the first side panel 21 (portions located around the first page strip 202) are formed with triangular connecting pieces 203a connecting the first side panel 21 to the first sealing body 50 and triangular connecting pieces 203b connecting the first side panel 21 to the second sealing body 80. Therefore, even if the first breaking lines 201a, 201b are broken to allow the first page strip 202 to be opened and closed, the first and second sealing bodies 50, 80 do not separate from the first side panel 21. Specifically, even if the first breaking lines 201a, 201b are broken, the first side panel 21 and the first and second sealing bodies 50, 80 remain connected via the connecting pieces 203a, 203b. This prevents the packaging box 1 from collapsing due to the breaking of the first breaking lines 201a, 201b.

[0037] The above has described the configuration of the box-body forming pieces 10. With a box-body forming piece 10 configured in this way, a packaging box 1 can be easily formed in a small area. Next, the procedure for assembling the box-body forming pieces 10 to form the packaging box 1 will be described. Note that, for ease of explanation, a folding method that results in a convex front surface of the box-body forming pieces 10 will also be referred to as a "normal folding," and conversely, a folding method that results in a convex back surface will also be referred to as a "reverse folding."

[0038] First, a blank sheet is punched to form the box-forming piece 10. Next, as shown in FIG. 2, the second page piece 25 is folded 180° backward along the fold line 34. Here, the two corners of the second page piece 25 on the free end side (left side in FIG. 2) are chamfered slightly larger than the connecting pieces 243a and 243c. Therefore, in the state shown in FIG. 2, the second page piece 25 does not overlap with the connecting pieces 243a and 243c. This state is maintained even when the packaging box 1 is assembled. With this configuration, the connecting pieces 243a and 243c can function as opening / closing restrictors that restrict the opening and closing of the first and second page pieces 202 and 25, as will be described later.

[0039] Next, as shown in FIG. 3, the third side panel 23 is folded 180° along the fold line 32, and glue B is applied to the surfaces of the third and sixth flaps 44, 74. Next, as shown in FIG. 4, the first page plate 20 is folded 180° along the fold line 30, and the back surfaces of the first and second sealing pieces 501, 801 are glued to the surfaces of the third and sixth flaps 44, 74. Here, as described above, the second page piece 25 is smaller than the first page piece 202, and in this state, the entire second page piece 25 is enclosed within the first page piece 202. Furthermore, in this state, the connecting pieces 203a, 203b of the first page plate 20 overlap with the connecting pieces 243b, 243d of the fourth side panel 24. The connecting pieces 203a and 203b are formed smaller than the connecting pieces 243b and 243d, so that the entire portion of the lid piece 242 excluding the opening piece 242a (i.e., the entire portion formed on the fourth side panel 24) is enclosed within the first page piece 202. This state is maintained even when the packaging box 1 is assembled.

[0040] As a result, box-forming piece 10 is folded into a folded state. Next, as shown in FIG. 5 , at a factory where contents are stored and packaged, fold lines 30, 31, 32, and 33 are each folded 90° to form rectangular cylindrical body 11. Next, glue is applied to the surface of second insertion piece 802, and fourth and fifth flaps 71 and 73 are folded 90° along fold lines 91 and 93. Then, second sealing piece 801 and second insertion piece 802 are folded along fold lines 901 and 902. Second insertion piece 802 is inserted into cylindrical body 11 (toward the back surface of second side panel 22), and the surface of second insertion piece 802 is glued (joined) to the back surface of second side panel 22. This seals the lower opening of cylindrical body 11 with second sealing body 80.

[0041] Next, after the contents are placed inside the cylindrical body 11 through the upper opening thereof, the upper opening is sealed in the same manner as the lower opening. That is, glue is applied to the surface of the first insertion piece 502, the first and second flaps 41, 43 are folded 90° along the fold lines 61, 63, and then the first sealing piece 501 and the first insertion piece 502 are folded along the fold lines 601, 602. The first insertion piece 502 is inserted into the cylindrical body 11, and the surface of the first insertion piece 502 is glued to the back surface of the second side panel 22. In this way, the upper opening of the cylindrical body 11 is sealed by the first sealing body 50.

[0042] In this manner, the packaging box 1 is assembled, and the packaging of the contents is completed. In this state, the second page piece 25 is overlapping the fourth side panel 24 (first panel), and the first page piece 202 is overlapping the second page piece 25. In this state, the first page piece 202 is connected to the first and second sealing bodies 50 and 80 via the first breaking lines 201a and 201b, so the first and second page pieces 202 and 25 remain unable to be opened or closed relative to the cylindrical body 11.

[0043] Next, we will explain how to open the packaging box 1. First, for the unopened packaging box 1 shown in Figure 6, hook your fingers around the free end of the first page strip 202 and lift up the first page strip 202 to break the first tear lines 201a and 201b. This makes the first page strip 202 openable and closable relative to the cylindrical body 11. In this state, the first page strip 202 opens and closes with the fold line 30 as the opening and closing axis.

[0044] When the first page piece 202 is opened, the second page piece 25, which was hidden behind the first page piece 202, is exposed. As shown in FIG. 8 , when the first page piece 202 is opened, the second page piece 25 opens and closes with the fold line 34 as the opening and closing axis. As described above, since the entire second page piece 25 is enclosed within the first page piece 202, the second page piece 25 does not get caught on the first page board 20, and the second page piece 25 can be opened and closed smoothly. Furthermore, unlike the first page piece 202, the second page piece 25 is not restricted in opening and closing by a tear line or the like, and therefore becomes openable and closable at the same time as the first page piece 202 is opened. This makes it easy to open and close the second page piece 25. Furthermore, since the fold line 30 that forms the opening and closing axis of the first page piece 202 and the fold line 34 that forms the opening and closing axis of the second page piece 25 overlap, the opening directions of the first and second page pieces 202, 25 are the same.

[0045] Furthermore, by opening the second page piece 25, the fourth side panel 24 (lid piece 242) that was hidden behind the second page piece 25 is exposed. In this state, by inserting a finger into the opening piece 242a and lifting the lid piece 242, the second breaking line 241 breaks, and the cylindrical body 11 is opened as shown in Figure 9. This allows the contents contained in the cylindrical body 11 to be taken out.

[0046] The opened flap 242 opens and closes with the fold line 34 as the opening axis, similar to the second page strip 25. In other words, the opening direction of the flap 242 is the same as the opening direction of the first and second page strips 202, 25. Furthermore, because the fold lines 30, 34 overlap, the first page strip 202, the second page strip 25, and the flap 242 can be opened and closed by turning them over relative to the cylindrical body 11 in the same way as a booklet. As mentioned above, the entire portion of the flap 242 except for the opening strip 242a is enclosed within the first page strip 202, so the flap 242 does not get caught on the first page board 20, and the flap 242 can be opened and closed smoothly.

[0047] Although the above has described a method for opening the packaging box 1, the opening method is not particularly limited. For example, for an unopened packaging box 1, a finger may be inserted into the opening flap 242a and then the lid flap 242 may be lifted up, thereby simultaneously breaking the first breaking lines 201a, 201b and the second breaking line 241.

[0048] With a packaging box 1 configured as described above, for example, portions that are hidden in the unopened state but are exposed in the opened state—specifically, the back surface of the first page piece 202, both the front and back surfaces of the second page piece 25, and both the front and back surfaces of the flap piece 242—can be used as display areas for displaying necessary information. This allows the packaging box 1 to secure sufficient space for the display areas. Furthermore, by overlapping the first page piece 202, the second page piece 25, and the flap piece 242, the packaging box 1 can be made more compact. In particular, in this embodiment, the fold lines 30 and 34 that form the opening / closing axis both overlap the edge of the fourth side panel (the edge along the fold line 34). Therefore, the first page piece 202, the second page piece 25, and the flap piece 242 can be made larger, which increases the space available for the display areas. Furthermore, in this embodiment, the lid piece 242 is exposed by opening the first and second page pieces 202, 25; in other words, in order to open the cylindrical body 11, the first break lines 201a, 201b must be broken to make the first and second page pieces 202, 25 openable and closable, making it easier for the user to check the information displayed on the display unit.

[0049] The information to be displayed on the display unit is not particularly limited and may vary depending on the contents contained in the packaging box 1, but examples include a description of the contents and instructions for using the contents.

[0050] Furthermore, as mentioned above, because the first page piece 202, the second page piece 25, and the flap piece 242 open and close around essentially the same opening and closing axis, these pieces 202, 25, and 242 can be turned over like a booklet. Therefore, each piece 202, 25, and 242 can be opened and closed smoothly and in a space-saving manner. Furthermore, because the size of each piece 202, 25, and 242 can be kept small, changes in line of sight and posture (face direction) are reduced compared to when information is written on a single large sheet of paper, making it easier to check the information displayed on the display. This results in a packaging box 1 that is easy to use.

[0051] The packaging box 1 opened as described above can be resealed by inserting the notches 204a and 204b formed at both corners of the free end of the first page piece 202 into the backsides of the connecting pieces 243a and 243c, as shown in FIG. 10 . Furthermore, in the resealed state, the opening and closing of the first page piece 202, the second page piece 25, and the flap piece 242 relative to the cylindrical body 11 is restricted, effectively preventing unintentional lifting up of these pieces. This improves the usability of the packaging box 1. Therefore, the connecting pieces 243a and 243c can be said to constitute a resealing portion for resealing the packaging box 1 and an opening and closing restricting portion for restricting the opening and closing of the first page piece 202, the second page piece 25, and the flap piece 242 relative to the cylindrical body 11. In particular, by configuring the notches 204a and 204b only to be inserted behind the connecting pieces 243a and 243c, the area hidden behind the connecting pieces 243a and 243c can be kept small. Therefore, even in the resealed state, most of the first page piece 202 is exposed to the outside, making it difficult for the display of the first page piece 202 to be hidden. When reopening the packaging box 1 after it has been resealed, the first page piece 202 is pulled out from the connecting pieces 243a and 243c, the first page piece 202 and the second page piece 25 are opened, and a finger inserted into the opening H1 is hooked on the recessed portion 242b to lift the lid piece 242.

[0052] However, the resealing method is not particularly limited, and for example, as shown in FIG. 11, both corners of the free end of the first page strip 202 may be inserted into the backside of the connecting pieces 243a and 243c.

[0053] The above describes the packaging box 1. As described above, the packaging box 1 includes a cylindrical body 11 having opposing fourth side panel 24 (first panel) and second side panel 22 (second panel) for accommodating contents, a first page piece 202 located on the fourth side panel 24 and connected to the cylindrical body 11 via first break lines 201a and 201b in an unopenable manner, and a second page piece 25 provided between the fourth side panel 24 and the first page piece 202. By breaking the first break lines 201a and 201b, the first page piece 202 and the second page piece 25 become openable and closable relative to the cylindrical body 11, and the first page piece 202 and the second page piece 25 open in the same direction. This configuration allows the first page piece 202 and the second page piece 25 to be used as display areas for displaying necessary information. This results in a packaging box 1 with a sufficiently wide display area. Furthermore, the first page piece 202 and the second page piece 25 are arranged one on top of the other on the fourth side panel 24, and open and close like a booklet relative to the cylindrical body 11. Therefore, the first page piece 202 and the second page piece 25 can be opened and closed in a space-saving manner, making the packaging box 1 easy to use.

[0054] Furthermore, as mentioned above, in a plan view of the fourth side panel 24, the second page piece 25 is smaller than the first page piece 202, and the entire second page piece 25 is enclosed within the first page piece 202. This configuration allows the second page piece 25 to be opened and closed smoothly.

[0055] As mentioned above, the opening and closing axes of the first page piece 202 and the second page piece 25 each overlap with the sides of the fourth side panel 24. With this configuration, the first page piece 202 and the second page piece 25 can be made larger, which in turn increases the space available for the display area.

[0056] As described above, the fourth side panel 24 has a lid piece 242 defined by the second break line 241, and the lid piece 242 opens by breaking the second break line 241, thereby opening the cylindrical body 11. With this configuration, in order to open the cylindrical body 11, it is necessary to break the first break lines 201a and 201b and make the first page piece 202 openable and closable. This makes it easier for the user to check the information displayed on the display unit.

[0057] Furthermore, as described above, when the flap 242 is opened, it opens and closes along the edge of the fourth side panel 24. With this configuration, the flap 242 can be opened and closed in the same way as the first and second page pieces 202, 25. Therefore, the front and back surfaces of the flap 242 can also be effectively used as display areas. As a result, the space for the display area is further expanded.

[0058] As described above, the packaging box 1 has connecting pieces 243a and 243c as opening / closing restrictors that restrict the opening and closing of the first page piece 202 and the second page piece 25 relative to the cylindrical body 11 when the first breaking lines 201a and 201b are broken. This configuration effectively prevents the first page piece 202 and the second page piece 25 from unintentionally turning up, making the packaging box 1 easier to use.

[0059] As mentioned above, the packaging box 1 is formed from a single blank sheet and, when the blank sheet is unfolded, has a cylinder forming portion 110 with a fourth side panel 24 and a second side panel 22 aligned horizontally (first direction), a first page plate 20 extending from one horizontal end of the cylinder forming portion 110 and having a first page strip 202 defined by first break lines 201a and 201b, a fold line 30 (first fold line) separating the cylinder forming portion 110 and the first page plate 20 and forming the opening and closing axis of the first page strip 202, a second page strip 25 extending from the other horizontal end of the cylinder forming portion 110, and a fold line 34 (second fold line) separating the cylinder forming portion 110 and the second page strip 25 and forming the opening and closing axis of the second page strip 25. The second page piece 25 is then folded backward along the fold line 34 relative to the cylinder forming section 110 and overlapped with the fourth side panel 24, and the first page plate 20 is folded forward along the fold line 30 relative to the cylinder forming section 110 and overlapped with the fourth side panel 24 and the second page piece 25 from the fold line 34 side, and is positioned around the first page piece 202 and joined to the fourth side panel 24 at the portion that does not overlap with the second page piece 25. With this configuration, a packaging box 1 can be easily formed from a blank sheet of a small area.

[0060] Second Embodiment The packaging box 1 according to this embodiment is similar to the packaging box 1 of the first embodiment described above, except that the opening location of the cylindrical body 11 is different. Therefore, in the following description, the packaging box 1 of this embodiment will be described focusing on the differences from the first embodiment described above, and a description of the same points will be omitted. In addition, in each drawing of this embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals.

[0061] 12, the box-forming piece 10 of this embodiment, like the box-forming piece 10 of the first embodiment described above, has a first page plate 20, a first side panel 21, a second side panel 22, a third side panel 23, a fourth side panel 24, and a second page piece 25 arranged side by side in the horizontal direction. In addition, a third break line 221 defines an opening piece 222 at the upper end of the second side panel 22.

[0062] The box-forming piece 10 also has first and fourth flaps 41, 71 extending from both upper and lower ends of the first side panel 21, second and fifth flaps 43, 73 extending from both upper and lower ends of the third side panel 23, and third and sixth flaps 40, 70 extending from both upper and lower ends of the first page plate 20. The first page plate 20 and the third flap 40 are separated by a fold line 60 extending horizontally, and the first page plate 20 and the sixth flap 70 are separated by a fold line 90 extending horizontally.

[0063] Furthermore, box-forming piece 10 has a lid 54 that seals the upper opening of cylindrical body 11. Lid 54 has a lid piece 541 extending from the upper end of fourth side panel 24, and an insertion piece 542 extending from the upper end of lid piece 541. Furthermore, fourth side panel 24 and lid piece 541 are separated by a fold line 641 that extends in the horizontal direction, and lid piece 541 and insertion piece 542 are separated by a fold line 642 that extends in the horizontal direction.

[0064] Furthermore, the box-forming piece 10 has a sealing body 84 that seals the lower opening of the cylindrical body 11. The sealing body 84 has a sealing piece 841 extending from the lower end of the fourth side panel 24, and an insertion piece 842 extending from the lower end of the sealing piece 841. Furthermore, the fourth side panel 24 and the sealing piece 841 are separated by a fold line 941 that extends in the horizontal direction, and the sealing piece 841 and the insertion piece 842 are separated by a fold line 942 that extends in the horizontal direction.

[0065] Furthermore, an insertion piece 202d is defined by an arc-shaped cut line in the first page strip 202, which is defined on the first page plate 20 by the first break lines 201a and 201b. A pair of "V"-shaped fold lines are formed from near the upper and lower ends of the cut lines toward the free end of the first page strip 202, making it easier to deform the area around the insertion piece 202d. A protrusion 202e is formed in the center of the free end of the first page strip 202 to hook a finger when opening the first page strip 202. Meanwhile, an insertion opening 245 for inserting the insertion piece 202d is formed in the fourth side panel 24 by an "E"-shaped cut line. A cut line 331 is formed on the fold line 33 in a portion aligned horizontally with the insertion opening 245, making it easier to deform the area around the insertion opening 245.

[0066] The configuration of the box-body forming piece 10 has been described above. Next, the procedure for assembling the box-body forming pieces 10 to form the packaging box 1 will be described. First, a blank sheet is punched to form the box-body forming piece 10. Next, as shown in FIG. 13, the second page piece 25 is folded 180° backward along the fold line 34. Note that in this state, the second page piece 25 does not overlap the insertion opening 245. This state is maintained even when the packaging box 1 is assembled. Next, as shown in FIG. 14, the third side panel 23 is folded 180° forward along the fold line 32, and glue B is applied to the back surfaces of the third and sixth flaps 40, 70. Next, as shown in FIG. 15, the first page panel 20 is folded 180° forward along the fold line 30, and the back surfaces of the third and sixth flaps 40, 70 are glued to the surfaces of the lid piece 541 and the sealing piece 841. As a result of the above, the box-forming piece 10 is in a folded state.

[0067] Next, at a factory where the contents are stored and packaged, the fold lines 30, 31, 32, and 33 are each folded at a 90° angle to form the rectangular cylindrical body 11. Next, glue is applied to the surface of the insertion piece 842, and the fourth and fifth flaps 71 and 73 are folded at a 90° angle along the fold lines 91 and 93. After that, the sealing piece 841 and the insertion piece 842 are folded at the fold lines 941 and 942, and the insertion piece 842 is inserted into the cylindrical body 11, and the surface of the insertion piece 842 is glued to the back surface of the second side panel 22. In this way, the lower opening of the cylindrical body 11 is sealed with the sealing body 84.

[0068] Next, after the contents are placed inside the cylindrical body 11 through the upper opening thereof, the upper opening is sealed in the same manner as the lower opening. That is, glue is applied to the surface of the insertion piece 542, the first and second flaps 41 and 43 are folded 90° along the fold lines 61 and 63, and the lid piece 541 and the insertion piece 542 are folded along the fold lines 641 and 642, thereby inserting the insertion piece 542 into the cylindrical body 11 and gluing the surface of the insertion piece 542 to the back surface of the tear piece 222 defined in the second side panel 22. This seals the upper opening of the cylindrical body 11.

[0069] In this way, the packaging box 1 is assembled, and the packaging of the contents is completed. Next, a method for opening the packaging box 1 will be described. To remove the contents from the unopened packaging box 1 shown in FIG. 16, the lid 54 is lifted while pushing in the opening flap 222 with a finger. This breaks the third breaking line 221, and the opening flap 222 is separated from the second side panel 22, and the cylindrical body 11 is opened as shown in FIG. 17. As described above, according to this embodiment, the cylindrical body 11 can be opened while the first page flap 202 remains in an unopenable state relative to the cylindrical body 11. This leaves it up to the user to decide whether or not to open the first page flap 202, thereby expanding the range of uses for the packaging box 1.

[0070] On the other hand, by hooking a finger on the protrusion 202e formed at the free end of the first page strip 202 and lifting the first page strip 202, the first break lines 201a and 201b break, and the first page strip 202 is opened as shown in FIG. 18. Furthermore, by opening the first page strip 202, the second page strip 25, which was hidden on the back side of the first page plate 20, is exposed. As shown in FIG. 19, when the first page strip 202 is opened, the second page strip 25 opens and closes around the fold line 34. Furthermore, by opening the second page strip 25, the fourth side panel 24, which was hidden on the back side of the second page strip 25, is exposed.

[0071] According to the packaging box 1 configured as above, for example, the back surface of the first page piece 202, both the front and back surfaces of the second page piece 25, and the surface of the fourth side panel 24 can be effectively used as display sections.

[0072] 20, by inserting the insertion piece 202d defined in the first page piece 202 into the insertion slot 245 formed in the fourth side panel 24, the opening and closing of the first page piece 202 and the second page piece 25 relative to the tube 11 is restricted, effectively preventing them from unintentionally turning up. In other words, in this embodiment, the insertion slot 245 constitutes the opening and closing restricting section.

[0073] As described above, the packaging box 1 of this embodiment has the lid 54 that extends from the end of the fourth side panel 24 (first panel) and is joined to the backside of the opening flap 222 defined by the third break line 221 on the second side panel 22 (second panel), thereby sealing one opening of the cylindrical body 11; the lid 54 opens when the third break line 221 is broken, and the cylindrical body 11 is opened. With this configuration, the cylindrical body 11 can be opened while the first page flap 202 remains in an unopenable state. This leaves it up to the user to decide whether or not to open the first page flap 202, thereby broadening the range of uses for the packaging box 1.

[0074] The second embodiment can also achieve the same effects as the first embodiment.

[0075] Third Embodiment The packaging box 1 according to this embodiment is similar to the packaging box 1 of the first embodiment described above, except that the shape of the box-body forming piece 10 is different. Therefore, in the following description, the packaging box 1 of this embodiment will be described focusing on the differences from the first embodiment described above, and a description of the same points will be omitted. In addition, in each drawing of this embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals.

[0076] As shown in Figure 21, the box-forming piece 10 of this embodiment has a first page plate 20, a first side panel 21, a second side panel 22, and a second page plate 25 arranged along the horizontal direction. Of these, the first side panel 21 and the second side panel 22 form the cylinder-forming section 110. In this embodiment, the second side panel 22 forms the "first panel" of the present invention, and the first side panel 21 forms the "second panel" of the present invention. The first and second side panels 21 and 22 have approximately the same shape, each a rectangle with an upper end recessed in an arc shape.

[0077] The box-forming piece 10 also has a first sealing body 50 that seals the upper opening of the cylindrical body 11. The first sealing body 50 has an inner sealing piece 51 extending from the upper end of the first side panel 21 and an outer sealing piece 52 extending from the upper end of the second side panel 22. The inner sealing piece 51 and the outer sealing piece 52 each have a pillow shape with both upper and lower ends curved in an arc. The first side panel 21 and the inner sealing piece 51 are separated by a fold line 61 that extends in an arc, and the second side panel 22 and the outer sealing piece 52 are separated by a fold line 62 that also extends in an arc. Although not shown, the fold lines 61 and 62 are each perforated lines. An insertion opening 211 formed by a cut line is formed at the boundary between the first side panel 21 and the inner sealing piece 51. On the other hand, an insertion piece 520 extends from the upper end of the outer sealing piece 52, and when assembling the packaging box 1, the insertion piece 520 is inserted into the insertion opening 211. The outer sealing piece 52 and the insertion piece 520 are separated by a fold line 620 that extends in an arc shape.

[0078] The box-forming piece 10 also has a second sealing body 80 that seals the lower opening of the cylindrical body 11. The second sealing body 80 has a first sealing piece 81 extending from the lower end of the first side panel 21 and a second sealing piece 82 extending from the lower end of the second side panel 22. The first and second sealing pieces 81, 82 are each trapezoidal. The first side panel 21 and the first sealing piece 81 are separated by a fold line 91, and the second side panel 22 and the second sealing piece 82 are separated by a fold line 92. A glue tab 810 extends from the lower end of the first sealing piece 81, and fins 811, 812 extend from both lateral end portions. The first sealing piece 81 and the adhesive strip 810 are separated by a fold line 910, and the first sealing piece 81 and the fin portions 811 and 812 are separated by fold lines 911 and 912. Meanwhile, fin portions 821 and 822 extend from both lateral end portions of the second sealing piece 82. The second sealing piece 82 and the fin portions 821 and 822 are separated by the fold lines 921 and 922.

[0079] The first page plate 20 has approximately the same width as the first and second side panels 21, 22, is longer than the first and second side panels 21, 22, and is rectangular in shape, with its upper end protruding upward beyond the first and second side panels 21, 22. An octagonal first page piece 202 is defined on the first page plate 20 by a pair of first break lines 201a, 201b that cross the first page plate 20. A hole 209 is formed in the upper end of the first page plate 20 (the portion above the first page piece 202) for hanging the packaging box 1 when displaying the box.

[0080] The second page piece 25 is octagonal and slightly smaller than the first page piece 202. In addition, a protrusion 251 is formed at the free end of the second page piece 25 (the end on the right side in Figure 21) to hook a finger when opening the second page piece 25.

[0081] Further, a rectangular lid piece 225 is defined on the second side panel 22 by an opening H formed at the upper end, a folding line 223 formed at the lower end and extending laterally, and a pair of breaking lines 224a, 224b formed to connect both ends of the opening H and the folding line 223. The folding line 223 is a perforated line.

[0082] The configuration of the box-body forming pieces 10 has been described above. Next, the procedure for assembling the box-body forming pieces 10 to form the packaging box 1 will be described. First, a blank sheet is punched to form the box-body forming piece 10. Next, as shown in FIG. 22, the second page piece 25 is reverse folded 180° along the fold line 32, and the adhesive strip 810 is reverse folded 180° along the fold line 910. Next, the first and second sealing pieces 81, 82 are folded forward along the fold lines 91, 92, and glue is applied to the back surface of the adhesive strip 810. After that, as shown in FIG. 23, the second side panel 22 is folded forward 180° along the fold line 31, and the back surface of the adhesive strip 810 is glued to the surface of the second sealing piece 82. Next, glue B is applied to the backside of the four corners of the first page plate 20 (portions located around the first page piece 202), and then, as shown in Figure 24, the first page plate 20 is folded 180° along the fold line 30, and the backside of the first page plate 20 is glued to the four corners of the front side of the second side panel 22 (portions located around the lid piece 225). As a result, the box-forming piece 10 is folded into a folded state.

[0083] Next, the cylindrical body 11 is opened at a factory where the contents are accommodated and packaged. The cylindrical body 11 is pillow-shaped with the first and second side panels 21, 22 each curved in an arc. At the same time as the cylindrical body 11 is opened, the second sealing body 80 is unfolded, sealing the lower opening of the cylindrical body 11. Next, the contents are accommodated in the cylindrical body 11 through the upper opening of the cylindrical body 11, and then the inner sealing piece 51 is folded forward along the fold line 61, the outer sealing piece 52 and the insertion piece 520 are folded forward along the fold lines 62, 620, and the insertion piece 520 is inserted into the insertion opening 211. This forms the first sealing body 50, and the upper opening of the cylindrical body 11 is sealed.

[0084] As described above, the packaging box 1 is assembled, and the packaging of the contents is completed. Next, a method for opening the packaging box 1 will be described. First, for an unopened packaging box 1, a finger is hooked on the free end of the first page piece 202 and the first page piece 202 is lifted up, causing the first tear lines 201a and 201b to tear, and the first page piece 202 is opened as shown in FIG. 25. In this state, the first page piece 202 can be opened and closed around the fold line 30, and the second page piece 25 can be opened and closed around the fold line 32. Furthermore, the second page piece 25 is opened to expose the flap piece 225, and a finger inserted into the opening H is hooked on the back surface of the flap piece 225 and the flap piece 225 is lifted up, causing the tear lines 224a and 224b to tear, and the tubular body 11 is opened. This allows the contents contained in the tubular body 11 to be removed.

[0085] With the packaging box 1 configured as described above, for example, the back surface of the first page piece 202, both the front and back surfaces of the second page piece 25, and the surface of the second side panel 22 can be effectively used as display areas. Therefore, sufficient space can be secured for the display areas.

[0086] The third embodiment as described above can also achieve the same effects as the first embodiment.

[0087] <Fourth embodiment> The packaging box 1 according to this embodiment is similar to the packaging box 1 according to the first embodiment, except that the second page strip 25 is larger than the first page strip 202. Therefore, in the following description, the packaging box 1 according to this embodiment will be mainly described with reference to the differences from the first embodiment, and a description of the similarities will be omitted. In addition, in each drawing of this embodiment, the same components as those in the above-described embodiment are designated by the same reference numerals.

[0088] As shown in FIG. 26, in the packaging box 1 of this embodiment, the second page strip 25 is larger than the first page strip 202. Specifically, the second page strip 25 is longer laterally than the first page strip 202. Therefore, as shown in FIG. 27, when the packaging box 1 is assembled, in a plan view of the fourth side panel 24, the free end of the second page strip 25 protrudes from between the fourth side panel 24 and the first page strip 20, and this portion is exposed from the first page strip 202. With this configuration, compared to the first embodiment described above, the area of ​​the display portion is larger due to the larger second page strip 25. Furthermore, for example, the first page strip 202 and the second page strip 25 can be opened simultaneously by lifting the exposed portion (free end) of the second page strip 25 upward.

[0089] In this embodiment, the second page piece 25 does not overlap with the cut pieces 204a and 204b and does not interfere with resealing using the cut pieces 204a and 204b.

[0090] As described above, in the packaging box 1 of this embodiment, in a plan view of the fourth side panel 24, the second page piece 25 is larger than the first page piece 202, and a portion of the second page piece 25 is exposed from the first page piece 202. With this configuration, the area of ​​the display section can be made larger.

[0091] The fourth embodiment can also achieve the same effects as the first embodiment described above.

[0092] However, the packaging box 1 is not particularly limited, and for example, as shown in Figure 28, the second page piece 25, which is longer horizontally than the first page piece 202, may be folded along a fold line 35 formed in the middle, so that the entire second page piece 25 is enclosed within the first page piece 202, as in the first embodiment described above.

[0093] Although the packaging box of the present invention has been described above based on the illustrated embodiment, the present invention is not limited to the above embodiment. For example, the configuration of each part can be replaced with any configuration having a similar function. Furthermore, any other configuration may be added to the present invention. Furthermore, each embodiment may be combined as appropriate. [Explanation of symbols]

[0094] 1...packaging box, 10...box forming piece, 11...cylinder, 110...cylinder forming portion, 20...first page plate, 201a...first break line, 201b...first break line, 202...first page piece, 202d...insertion piece, 202e...projection portion, 203a...connection piece, 203b...connection piece, 204a...notch piece, 204b...notch piece, 209...hole, 21...first side panel, 211...insertion hole, 22...second side panel, 221...third break line, 222...opening piece, 223...fold line, 224a...break line, 224b...break line, 225 ...lid piece, 23...third side panel, 24...fourth side panel, 241...second tear line, 242...lid piece, 242a...opening piece, 242b...recessed portion, 243a...connecting piece, 243b...connecting piece, 243c...connecting piece, 243d...connecting piece, 245...insertion hole, 25...second page piece, 251...projection portion, 30...fold line, 31...fold line, 32...fold line, 33...fold line, 331...score line, 34...fold line, 35...fold line, 40...third flap, 41...first flap, 43...second flap, 44...third flap, 50... First sealing body, 501...first sealing piece, 502...first insert piece, 51...inner sealing piece, 52...outer sealing piece, 520...insertion piece, 54...lid body, 541...lid piece, 542...insertion piece, 60...fold line, 601...fold line, 602...fold line, 61...fold line, 62...fold line, 620...fold line, 63...fold line, 64...fold line, 641...fold line, 642...fold line, 70...sixth flap, 71...fourth flap, 73...fifth flap, 74...sixth flap, 80...second sealing body, 801...second sealing piece, 802...second 2 Insertion piece, 81...first sealing piece, 810...glue piece, 811...fin portion, 812...fin portion, 82...second sealing piece, 821...fin portion, 822...fin portion, 84...sealing body, 841...sealing piece, 842...insertion piece, 90...fold line, 901...fold line, 902...fold line, 91...fold line, 910...fold line, 911...fold line, 912...fold line, 92...fold line, 921...fold line, 922...fold line, 93...fold line, 94...fold line, 941...fold line, 942...fold line, B...glue, H...opening, H1...opening, H2...opening

Claims

1. a cylindrical body having a first face plate and a second face plate disposed opposite each other and configured to accommodate contents; a first page strip located on the first face plate and unopenably connected to the cylinder via a first break line; a second page strip disposed between the first face plate and the first page strip; By breaking the first break line, the first page piece and the second page piece can be opened and closed relative to the cylindrical body; A packaging box, characterized in that the first page piece and the second page piece open in the same direction.

2. In a plan view of the first face plate, the second page piece is smaller than the first page piece; 2. The packaging box according to claim 1, wherein the second page piece is entirely enclosed within the first page piece.

3. In a plan view of the first face plate, the second page strip is larger than the first page strip; 2. The packaging box according to claim 1, wherein a portion of said second page piece is exposed from said first page piece.

4. 2. The packaging box according to claim 1, wherein opening and closing axes of the first page piece and the second page piece overlap with sides of the first panel.

5. the first panel has a cover piece defined by a second break line; 5. The packaging box according to claim 4, wherein the lid piece opens by breaking the second breaking line, and the cylindrical body is opened.

6. 6. The packaging box according to claim 5, wherein the lid piece opens and closes along the side in the opened state.

7. a lid extending from an end of the first panel and joined to a rear surface of a tear strip defined by a third break line on the second panel to seal one opening of the cylindrical body; 5. The packaging box according to claim 4, wherein the lid is opened by breaking the third breaking line, and the cylindrical body is unsealed.

8. In a state where the first break line is broken, 2. The packaging box according to claim 1, further comprising an opening / closing restricting portion that restricts opening and closing of the first page piece and the second page piece relative to the cylindrical body.

9. formed from a single blank sheet, In a state where the blank sheet is unfolded, a cylindrical body forming portion including the first face plate and the second face plate aligned in a first direction; a first page plate extending from one end of the cylindrical portion in the first direction and including the first page strip defined by the first break line; a first folding line that separates the cylindrical body forming portion and the first page board and forms an opening / closing axis of the first page strip; the second page strip extending from the end of the cylindrical body forming portion on the other side in the first direction; a second fold line separating the cylindrical body forming portion and the second page strip, the second fold line forming an opening / closing axis of the second page strip; the second page strip is folded back along the second fold line relative to the cylinder-forming portion and superimposed on the first face plate; 2. The packaging box according to claim 1, wherein the first page board is folded squarely along the first fold line relative to the cylindrical body forming portion, and is overlapped with the first panel and the second page piece from the second fold line side, and is joined to the first panel at a portion located around the first page piece and not overlapping with the second page piece.

Images