Packing box

Abstract

In a packaging box in which a lid is adhered to a box body and the lid can be rotated with respect to the box body, and the lid can be opened by breaking a part of the packaging box, a packaging box is provided in which the inside of the box body can be visually recognized without opening the lid with respect to the box body. 【Solution means】The packaging box has a box body A1 and a lid B1. The box body A1 and the lid B1 are adhered at the back surface portion, and at the front side, a rotating piece portion 114 and a separating portion 14 are adhered. By pushing the rotating piece portion 114, the cut lines 115K, 15K are broken, and the separating portion 14 adhered to the rotating piece portion 114 rotates inward, and the separating portion 14 can be locked to a locking portion provided by a cut line formed in the lid portion of the lid B1. The lid B1 rotates with respect to the box body A1 to open and close.

Description

Technical Field

[0001] The present invention relates to a packaging box, and more particularly to a packaging box in which a lid is adhered to a box body.

Background Art

[0002] Conventionally, as a packaging box in which a lid is adhered to a box body and the lid rotates with respect to the box body, there is a carton with a lid described in Patent Document 1.

[0003] In the first embodiment of the carton with a lid described in this Patent Document 1, the connecting plate 27 of the lid body 20A is bonded to the rear plate 13 of the carton body 10A, and the lid folding plate 26 is bonded to the front plate 11 of the carton body 10A. Then, by picking up the protrusion Q and tearing the fold line q, the lid front plate 21 is separated from the lid folding plate 26. Further, in the second embodiment, the connecting plate 27 is bonded to the rear plate 13, and by pulling up the lid front plate 21 of the lid body 20B upward, the outer portion 26b of the lid folding plate 26 bonded to the front plate 11 of the carton body 10B and the inner portion 26a bonded to the back surface of the lid front plate 21 of the lid body 20B are separated along the cutting line u and can be opened. Further, in the third embodiment, the connecting plate 27 is bonded to the rear plate 13, and by picking up the protrusion Q protruding from the lid front plate 21 of the lid body 20C and pulling it upward, the lid front plate 21 is separated from the lid folding plate 26 bonded to the front plate 11 of the carton body 10C and can be opened.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the carton with a lid described in Patent Document 1, when the lid is closed with respect to the carton body, there is a problem that the inside of the carton cannot be visually recognized and the object to be stored in the carton cannot be seen.

[0006] Therefore, the present invention provides a packaging box in which a lid is adhered to a box body and the lid rotates with respect to the box body, and the lid can be opened by breaking a part of the packaging box. The purpose is to provide a packaging box in which the inside of the box body can be visually recognized without opening the lid with respect to the box body.

Means for Solving the Problems

[0007] The present invention was created to solve the above problems. First, there is a packaging box having a box body (A1, A2, A3) and a lid (B1, B2, B3). The box body and the lid are each formed from a sheet-like blank. The box body has a bottom surface portion (50) and an inner sleeve-like portion (1) that stands upright from each side of the bottom surface portion and forms a substantially right angle with the bottom surface portion. The inner sleeve-like portion has an inner front portion (10), a pair of opposing inner side portions (20, 30), and an inner rear portion (40). In a state where the box body is assembled into a box shape, among the four surface portions of the inner front portion, the pair of inner side portions, and the inner rear portion, the adjacent surface portions form a substantially right angle with the inner sleeve-like portion. In the inner front portion, a part of the inner front portion is formed as a separation portion (14) that is separable from the inner front portion main body (12), which is the region other than the separation portion in the inner front portion, via a first cut line (15K). The separation portion is provided in the upper end region of the inner front portion. The lid has an outer sleeve-like portion (101) provided along the outer surface of the box body, an outer front portion (110) formed along the outer surface of the inner front portion, outer side portions (120, 130) formed along the outer surfaces of the respective inner side portions of the pair of inner side portions, and an outer rear portion (140) formed along the outer surface of the inner rear portion. In a state where the lid is assembled into a box shape, among the four surface portions of the outer front portion, the pair of outer side portions, and the outer rear portion, the adjacent surface portions form a substantially right angle with the outer sleeve-like portion, and there is a continuous portion (200, 220) continuously provided from the upper end of the outer front portion via a first fold line (C200, C220). The outer front portion has a rotating piece portion (114) continuously provided from the continuous portion via a first fold line, and an outer front portion main body (112), which is the region other than the rotating piece portion in the outer front portion. The rotating piece portion and the outer front portion main body are partitioned via a second cut line (115K) continuously provided from the first fold line. The rotating piece portion is adhered to the separation portion. A second fold line (C143) is provided in the left-right direction on the outer rear portion. The lower region of the outer rear portion (143-2), which is the region below the second fold line in the outer rear portion, is adhered to the inner rear portion. By breaking the first cut line and the second cut line, the rotating piece portion to which the separation portion is adhered becomes rotatable with respect to the continuous portion, and the portion other than the lower region of the outer rear portion in the lid can be opened and closed with respect to the box body via the second fold line.

[0008] In the first configuration, by breaking the first cut line and the second cut line, the rotating piece part becomes rotatable with respect to the connecting part, and the area of the rotating piece part opens. Therefore, even without opening the lid body with respect to the box body, the inside of the packing box can be visually recognized, and the stored object to be stored can be visually recognized.

[0009] Second, in the above first configuration, locking portions (202a, 222a) in a shape protruding toward the outer front portion side are provided by cut lines (203K-1, 223K-1) composed of cut lines or cuts formed in the connecting portion. In the front perspective view of the packing box, the first cut line is outside the area of the rotating piece part. By pushing the rotating piece part toward the back side, the first cut line and the second cut line are broken, and the rotating piece part with the separating portion adhered is rotated inward and pressed against the inner surface of the connecting portion, so that the separating portion is locked to the locking portion.

[0010] Therefore, since the rotating piece part is fixed along the back surface of the connecting part, it is possible to make it easier to visually recognize the inside of the packing box. Also, compared with the case where the rotating piece part is locked to the locking portion, it is not necessary to bend the rotating piece part, so that the locking to the locking portion becomes easy.

[0011] Third, in the above first configuration, locking portions (202a, 222a) in a shape protruding toward the outer front portion side are provided by a cut line (203K-1) composed of a cut line or a cut formed in the connecting portion. A pair of left and right cut lines (116K-1, 116K-2) composed of cut lines or cuts are connected from the second cut line to the rotating piece part, and a pressing piece (116), which is the area between the pair of left and right cut lines, is provided. An opening (16K) is provided at a position corresponding to the pressing piece on the inner front portion. The opening is provided in contact with the separating portion and the inner front portion main body. By pushing the pressing piece, inserting a finger into the opening, and rotating the rotating piece part outward while pinching the rotating piece part, the first cut line and the second cut line are broken, and by pressing the rotating piece part against the outer surface of the connecting portion, the pressing piece is locked to the locking portion.

[0012] Therefore, since the rotating piece part is fixed along the back surface of the connecting part, it is possible to more easily visually recognize the inside of the packaging box.

[0013] Also, as a fourth configuration, the following configuration may be used. That is, in any of the configurations from the first to the third above, the connecting part may be a lid part (200) that closes the upper opening of the outer sleeve-shaped part.

[0014] Also, as a fifth configuration, the following configuration may be used. That is, in any of the configurations from the first to the third above, a lid part (200) that closes the upper opening of the outer sleeve-shaped part is connected via a broken line from the upper end of either one of the pair of outer side surfaces, and the connecting part may be a flap part (220) located below the lid part with the lid part closed with respect to the outer sleeve-shaped part.

Effects of the Invention

[0015] According to the packaging box based on the present invention, by breaking the first cut line and the second cut line, the rotating piece part can rotate with respect to the connecting part, and the area of the rotating piece part opens. Therefore, even without opening the lid body with respect to the box body, the inside of the packaging box can be visually recognized, and the stored object to be stored can be visually recognized.

Brief Description of the Drawings

[0016]

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Mode for Carrying Out the Invention

[0017] In the present invention, in a packaging box in which a lid is adhered to a box body and the lid rotates with respect to the box body, and the lid can be opened by breaking a part of the packaging box, an object of providing a packaging box in which the inside of the box body can be visually recognized without opening the lid with respect to the box body is achieved as follows.

Example

[0018] The packaging box P1 of Example 1 based on the present invention is configured as shown in FIGS. 1 to 7, and has a box body (inner box part) A1 and a lid (outer box part) B1, and each of the box body A1 and the lid B1 is formed of a single sheet-like blank (specifically, corrugated cardboard (especially double-sided corrugated cardboard), and may also be cardboard or the like).

[0019] The box body A1 has a container shape with an open upper part as a whole, and as shown in FIGS. 1 to 4 and the like, has a sleeve-like part (inner sleeve-like part) 1 and a bottom part 50. The sleeve-like part 1 is formed to stand up from around the bottom part 50 in the assembled state, and has a front part (inner front part) 10, side parts (inner side parts, inner right side part) 20, side parts (inner side parts, inner left side part) 30, a back part (inner back part) 40, and a pasting margin part 49, and its developed state is formed as shown in FIG. 4.

[0020] Here, the front part 10 has a front part main body (inner front part main body) 12 and a separation part 14 continuously provided from a part of the upper side of the front part main body 12 via a cut line (first cut line) 15K.

[0021] The upper side of the front part main body 12 has a linear side part 12a inclined obliquely upward from the upper end of the fold line C3 between the side part 20 toward the left side surface, a linear side part 12b inclined obliquely upward from the upper end of the fold line C2 between the side part 30 toward the right side surface, and a substantially arc-shaped side part 12c between the side part 12a and the side part 12b, and the side part 12c forms a concave side part.

[0022] The separating part 14 is continuously provided via a cut line 15K provided along the side part 12c, and is formed to protrude above the upper side of the front part main body 12. The separating part 14 is adhered to the rotating piece part 114 of the front part 110 of the lid body B1. When the packaging box P1 is viewed from the front, as shown in FIG. 13, the separating part 14 protrudes outside (particularly, downward) from the tip of the rotating piece part 114, and the cut line 15K is located outside the cut line 115K between the front part main body 112 and the rotating piece part 114 in the lid body B1. The separating part 14 is formed surrounded by a side part along the cut line 15K, side parts 14a and 14b formed from both ends of the side part, and a side part 14c formed between the upper end of the side part 14a and the upper end of the side part 14b. The side parts 14a and 14b are formed in a linear tapered shape, and are formed such that the distance between the side part 14a and the side part 14b becomes shorter as going upward. The side part 14c is formed linearly in the left-right direction, and a roundness is formed between the side parts 14a and 14b.

[0023] As described above, in the front part 10, a part of the front part 10 is formed as a separating part 14 and is separably formed via a cut line 15K on the front part main body 12 which is a region other than the separating part 14 in the front part 10. The separating part 14 is provided in the upper end region of the front part 10. The side parts 14a, 14b, and 14c other than the side part along the cut line 15K between the separating part 14 and the front part main body 12 are continuously provided from the side parts 12a and 12b which are the upper side parts of the front part main body 12. Also, the cut line is a planned cutting line, and the same applies in the following description.

[0024] Also, the side part 20 is continuously provided via a broken line C3 from the right side (the side part on the right side surface side) of the front part 10, and its upper side is formed in a mountain shape that bulges upward, and has a side part 20a formed parallel to the lower side of the side part 20, a side part 20b inclined downward from the front end of the side part 20a, and a side part 20c inclined downward from the rear end of the side part 20a.

[0025] Further, the side surface portion 30 is continuously provided from the left side (the side portion on the left side surface) of the front surface portion 10 via a broken line C2. Its upper side is formed in a mountain shape that rises upward, and has an arcuate side portion 30a, a side portion 30b that inclines downward from the front end of the side portion 30a, and a side portion 30c that inclines downward from the rear end of the side portion 30a.

[0026] Note that the length L2 from the lower side to the upper end of the side surface portion 30 is substantially the same as the length L1 from the lower side to the upper end of the side surface portion 20.

[0027] Also, the back surface portion 40 is continuously provided from the rear side (the side portion on the back side) of the side surface portion 30 via a broken line C1. Its upper side has a side portion 40a formed parallel to the lower side of the back surface portion 40 from the right end of the back surface portion 40, and a side portion 40b that inclines downward from the left end of the side portion 40a.

[0028] Note that the length L3 from the lower side to the upper end (that is, the side portion 40a) of the back surface portion 40 is formed shorter than the length L1 and the length L2, and the length L3 is formed at least shorter than the length L1 and the length L2 by the length L4 (the length from the base end to the tip) of the insertion piece portion 204 of the lid body B1. This is because when the insertion piece portion 204 is inserted along the inside of the back surface portion 140 of the lid body B1, the upper end of the back surface portion 40 does not cause an obstruction.

[0029] Also, the paste margin portion 49 is continuously provided from the side portion on the right side surface side of the back surface portion 40 via a broken line C0, and exhibits an elongated strip-shaped trapezoidal shape in the vertical direction. The outer surface of this paste margin portion 49 is adhered to the inner surface of the end region on the back side of the side surface portion 20.

[0030] Note that in the sleeve-shaped portion 1, the broken line C0, the broken line C1, the broken line C2, and the broken line C3 are formed parallel to each other and are perpendicular to the lower side of the sleeve-shaped portion 1.

[0031] Also, the bottom surface portion 50 is a so-called one-touch bottom, and has a first piece portion (the first piece portion of the bottom surface portion) 60, a second piece portion (the second piece portion of the bottom surface portion) 70, a third piece portion (the third piece portion of the bottom surface portion) 80, and a fourth piece portion (the fourth piece portion of the bottom surface portion) 90. In the assembled state of the packaging box P, as shown in FIG. 3 , it presents a substantially rectangular outer shape.

[0032] Here, the first piece portion 60 is continuously provided from the lower side of the side surface portion 30 via a broken line, and is formed in a substantially trapezoidal shape that becomes narrower toward the tip side. A part of the upper surface thereof forms a part of the inner bottom surface of the box body A. In the assembled state of the bottom surface portion 50, the first piece portion 60 is formed point-symmetrically with respect to the fourth piece portion 90 via the center position of the bottom surface portion 50 (the intersection of two straight lines connecting the diagonal corner portions of the bottom surface portion 50).

[0033] Also, the second piece portion 70 is continuously provided from the lower side of the front surface portion 10 via a broken line, and is formed in a substantially rectangular shape. A part of the upper surface of the second piece portion 70 forms a part of the inner bottom surface of the box body A1. Also, from the corner portion of the second piece portion 70 (the lower end of the boundary position between the front surface portion 10 and the side surface portion 20), a broken line 70-1 (this broken line 70-1 has a mountain fold line on the upper surface side) is formed obliquely with respect to the side portion forming the boundary with the front surface portion 10 of the second piece portion 70, so that it can be easily folded when folding the box body A1. The second piece portion 70 is partitioned into a main body portion 72 and a tip portion 74 via the broken line 70-1. A notch portion 72a is formed on the tip side of the main body portion 72 so as to engage with the other main body portion 82. The upper surface of the tip portion 74 is adhered to the lower surface of the fourth piece portion 90.

[0034] Further, the third piece part 80 is continuously provided from the lower side of the back part 40 via a fold line, and in the assembled state of the bottom part 50, it is formed point-symmetrically via the center positions of the second piece part 70 and the bottom part 50. That is, the third piece part 80 is continuously provided from the lower end of the back part 40 via a fold line, is formed in a substantially rectangular shape, and a part of the upper surface of the third piece part 80 forms a part of the inner bottom surface of the box body A1. Also, from the corner part of the third piece part 80 (the lower end of the boundary position between the back part 40 and the side part 30), a fold line 80-1 is formed obliquely with respect to the side part forming the boundary with the back part 40 of the third piece part 80 (this fold line 80-1 is a mountain fold line on the upper surface side), and when folding the box body A1, it can be easily folded. The third piece part 80 is partitioned into a main body part 82 and a tip part 84 via the fold line 80-1. A notch part 82a is formed on the tip part 84 side at the tip of the main body part 82 so as to be locked with the other main body part 72. The upper surface of the tip part 84 is adhered to the lower surface of the first piece part 60.

[0035] Also, the fourth piece part 90 is continuously provided from the lower end of the side part 20 via a fold line, is formed in a substantially trapezoidal shape that becomes narrower toward the tip side, and a part of its upper surface forms a part of the inner bottom surface of the box body A1.

[0036] As described above, in the bottom part 50, the tip part (the first end region) 84, which is the other side part of one of the bottom part first piece part pairs formed by two adjacent piece parts (the first piece part 60 and the third piece part 80), is bendable via a fold line, the tip part 84 is adhered to the first piece part 60, and the tip part (the second end region) 74, which is the other side part of one of the bottom part second piece part pairs formed by the other two adjacent piece parts (the second piece part 70 and the fourth piece part 90), is bendable via a fold line, and the tip part 74 is adhered to the fourth piece part 90.

[0037] In addition, in the unfolded state of the box body A1, the lower side of the front part 10, the lower side of the side part 20, the lower side of the side part 30, and the lower side of the back part 40 are formed on the same straight line, and these lower sides constitute the lower side of the sleeve-like part 1.

[0038] When the box body A1 is assembled into a box shape, the front portion 10 and the rear portion 40 are parallel to each other, the side portion 20 and the side portion 30 are parallel to each other, and each member constituting the bottom portion 50 is at a substantially right angle (may be at a right angle) to the front portion 10, the side portions 20, 30, and the rear portion 40. In other words, the sleeve-shaped portion 1 is at a substantially right angle (may be at a right angle) to the bottom portion 50. In addition, adjacent members among the members constituting the sleeve-shaped portion 1 (the front portion 10, the side portions 20, 30, and the rear portion 40) are at a right angle (may be at a substantially right angle) to each other.

[0039] In addition, the box body A1 can be folded into a flat plate (see Figure 11), and when the box body A1 is folded, each part constituting the bottom portion 50 is approximately parallel to the front portion 10, side portions 20, 30, and back portion 40 that constitute the sleeve-shaped portion 1 within the sleeve-shaped portion 1.

[0040] The lid body B1 is a box body that covers approximately the upper half of the box main body A1, and as shown in Figures 1 and 2, has a sleeve-shaped portion (outer sleeve-shaped portion) 101, a lid portion 200, and flap portions 210, 220, and its unfolded state is formed as shown in Figures 5 to 7.

[0041] Here, when assembled, the sleeve-shaped portion 101 has a rectangular cylindrical shape and has a front portion (outer front portion) 110, a side portion (outer side portion, right side portion, outer right side portion) 120, a side portion (outer side portion, left side portion, outer left side portion) 130, a back portion (outer back portion) 140, and a glue tab portion 149.

[0042] The front surface 110 has a generally rectangular shape overall, with rounded corners formed at the bottom ends on both sides.

[0043] The front portion 110 has a front portion main body (outer front portion main body) 112 and a rotating piece 114 connected to a concave side portion of the front portion main body 112 via a cut line (second cut line) 115K.

[0044] That is, the front body 112 includes side portions 112b and 112c that form a part of the upper side of the front portion 110 at the boundary with the lid portion 200, a concave side portion 112a formed between the side portion 112b and the side portion 112c, a side portion 112d along the broken line C13, a side portion 112e along the broken line C12, and a side portion 112f continuously provided from the lower end of the side portion 112d and the lower end of the side portion 112e. The side portion 112f forms the lower side portion of the front portion 110 and has a linear side portion 112f-1 parallel to the upper side of the front portion 110 and substantially arc-shaped side portions 112f-2 and 112f-3 on both sides of the side portion 112f-1.

[0045] This side portion 112a has a pair of linear side portions formed in a tapered shape from the upper side of the front portion 110 and a substantially arc-shaped side portion formed between the pair of side portions. The pair of side portions have a tapered shape in which the length between the pair of side portions becomes shorter as it goes downward.

[0046] The rotating piece portion 114 is continuously provided from the front side (front side portion) of the lid portion (continuous portion) 200 (that is, the side portion forming the boundary with the front portion 110) via a broken line (first broken line) C200, and has a shape surrounded by a side portion along the broken line and a side portion along the cut line 115K. As described above, when the packaging box P1 is viewed from the front, the cut line 115K is outside the area of the rotating piece portion 114, the contour of the tip of the rotating piece portion 114 (that is, the portion along the tip of the rotating piece portion 114 at the cut line 115K) is above (inside) the cut line 15K, and the separating portion 14 protrudes below the tip of the rotating piece portion 114. Thereby, when pushing the rotating piece portion 114 from the outside to break the cut line 115K and the cut line K15, there is no risk that the rotating piece portion 114 will catch on the upper side of the front body 12. That is, when viewed from the front, if the rotating piece portion 114 protrudes below the separating portion 14, the tip of the rotating piece portion 114 will catch on the upper side of the front body 12 (that is, the side portion 12c), but there is no such risk. As described above, the rotating piece portion 114 is adhered to the separating portion 14.

[0047] As described above, the front portion 110 has a rotating piece portion 114 connected to the lid portion 200 via the fold line C200, and a front portion main body 112 which is a region other than the rotating piece portion 114 in the front portion 110. The rotating piece portion 114 and the front portion main body 112 are partitioned via a cut line 115K connected from the fold line C200, and the rotating piece portion 114 is adhered to the separating portion 14.

[0048] Also, the side portion 120 is connected to the right side of the front portion 110 via the fold line C13, and its lower side has a linear side portion 120a parallel to the upper side of the side portion 120, and a side portion 120b connected from the front-side end of the side portion 120a and inclined upward toward the front side.

[0049] The lower part of the corner between the front portion 110 and the side portion 120 is formed in a shape cut out by the side portion 112f-2 and the side portion 120b. In the state where the lid body B1 is closed, the lower end position of the fold line C13 substantially coincides with the upper end position of the fold line C3. In this way, since the lower end position of the fold line C13 is not below the upper end position of the fold line C3, there is no risk that the lower end of the fold line C13 contacts the upper end of the fold line C3 when the lid body B1 is rotated and closed. Also, since the lower part of the corner between the front portion 110 and the side portion 120 is formed in a cut-out shape, the upper end position of the fold line C3 can be raised, and a larger storage space of the box main body A1 can be secured.

[0050] Also, the side portion 130 has a configuration substantially symmetric to the left and right with respect to the side portion 120. That is, the side portion 130 is connected to the left side of the front portion 110 via the fold line C12, and its lower side has a linear side portion 130a parallel to the upper side of the side portion 130, and a side portion 130b connected from the front-side end of the side portion 130a and inclined upward toward the front side.

[0051] The lower part of the corner between the front face portion 110 and the side face portion 130 has a shape cut out by the side portion 112f-3 and the side portion 130b. In the state where the lid body B1 is closed, the lower end position of the fold line C12 substantially coincides with the upper end position of the fold line C2. Thus, similar to the case described for the side face portions 20 and 120, when the lid body B1 is rotated and closed, there is no possibility that the lower end of the fold line C12 contacts the upper end of the fold line C2, and also, by raising the upper end position of the fold line C2, a larger storage space of the box body A1 can be secured.

[0052] Also, the back face portion 140 is continuously provided from the rear side of the side face portion 130 via the fold line C11, and has a back face body 142 and an insertion portion 144 continuously provided from the back face body 142 via a fold line.

[0053] The back face body 142 has a shape in which a rectangular notch is provided at the upper end of a rectangular shape. The back face body 142 is partitioned into an upper region 143-1 and a lower region (outer lower back face region) 143-2 via the fold line C143, and the lower region 143-2 serves as an adhesion region to the back face portion 40. A linear cut line 143K is provided from the position of the fold line C143 to the lower end at the boundary position between the lower region 143-2 and the side face portion 130 so as not to hinder the rotation of the lid body B1 with respect to the box body A1. When the lid body B1 is rotated with respect to the box body A1, the cut line 143K will break.

[0054] The adhesion location of the lower region 143-2 to the back face portion 40 is a position where the lower side of the back face portion 140 is above the lower side of the back face portion 40 and the upper side of the back face portion 40 is below the upper side of the back face body 142 (a position below by a length L4 or more). In the state where the lower region 143-2 is adhered to the back face portion 40, the upper side of the sleeve-shaped portion 101 of the lid body B1 substantially coincides with the upper end of the box body A1 (strictly speaking, slightly above the upper end of the box body A1), the lower end position of the fold line C13 substantially coincides with the upper end position of the fold line C3, and the lower end position of the fold line C12 substantially coincides with the upper end position of the fold line C2. The upper end of the box body A1 is the upper end of the side face portion 20 (the position of the side portion 20a) and the upper end of the side face portion 30 (the upper end of the side portion 30a).

[0055] The insertion part 144 has a base end part 144-1 continuously provided from the back surface part main body 142 via the broken line C140, and a tip end part 144-2 continuously provided from the tip of the base end part 144-1.

[0056] The base end part 144-1 is continuously provided from the bottom of the notch of the back surface part main body 142 via the broken line C140, and is partitioned from the back surface part main body 142 via the side parts on both sides of the notch and a vertical linear cut. The base end part 144-1 is provided in the notch area of the back surface part main body 142.

[0057] The tip end part 144-2 is continuously provided from the base end part 144-1 via a pair of broken lines C142. However, in the unfolded state of the back surface part 140, the broken line C142 is formed on the extension line of the upper side of the back surface part main body 142, and a substantially U-shaped cut is formed between the pair of broken lines C142. The tip end part 144-2 has a rectangular shape with rounded corners formed at both corner parts on the tip side.

[0058] Further, the adhesive margin part 149 is continuously provided from the end part on the back side of the side surface part 120 via the broken line C14, and has an elongated strip-shaped trapezoidal shape in the vertical direction. The inner surface of this adhesive margin part 149 is adhered to the outer surface of the end part area on the right side surface side of the back surface part 140.

[0059] In this adhesive margin part 149, a horizontal broken line C149 is provided at a position substantially the same height as the broken line C143, and a cut line 149K is provided from the position of the broken line C149 at the boundary position between the adhesive margin part 149 and the side surface part 120 to the lower end. When the lid body B1 is rotated with respect to the box body A1, the cut line 149K breaks, and there is no hindrance when the lid body B1 rotates with respect to the box body A1.

[0060] In the sleeve-shaped part 101, the broken line C11, the broken line C12, the broken line C13, and the broken line C14 are formed parallel to each other and are perpendicular to the upper side of the sleeve-shaped part 101.

[0061] Further, the lid portion (continuous portion) 200 closes the upper opening of the sleeve-shaped portion 101. The lid portion 200 includes a lid body 202 continuously provided from the upper side of the front portion 110 via a fold line C200, and an insertion piece portion 204 continuously provided from the tip of the lid body 202 via a fold line C202.

[0062] The lid body 202 has a substantially square shape. The linear side portions on both the left and right sides are perpendicular to the upper side of the front portion 110. A substantially rectangular notch 202K is formed in the side portion on the tip side, and the shape protrudes beyond the fold line C202 that forms the boundary with the insertion piece portion 204 by a hook-shaped cut 206K continuously provided from the notch 202K.

[0063] A cut line 203K is formed substantially at the center of the lid body 202. As shown in FIG. 6, the cut line 203K includes an arc-shaped cut line 203K-1 bulging toward the front portion 110 side, a cut line 203K-2 continuously provided from the end on the right side surface side of the cut line 203K-1, and a cut line 203K-3 continuously provided from the end on the left side surface side of the cut line 203K-1. The cut line 203K-2 has a linear cut that becomes more frontward toward the right side surface side and a semi-circular portion that turns toward the back side from the tip of the cut. The cut line 203K-3 is formed symmetrically with the cut line 203K-2 with respect to left and right, and has a linear cut that becomes more frontward toward the left side surface side and a semi-circular portion that turns toward the back side from the tip of the cut. Further, fold lines C203 are provided in the left-right direction near both ends of the cut line 203K-1, and a locking portion 202a surrounded by the cut line 203K-1 and the fold lines C203 is formed. The locking portion 202a has a shape protruding toward the front portion 110 side by the cut line 203K-1.

[0064] By rotating the rotating piece part 114 with the separating part 14 adhered thereto inside the box body A1, the separating part 14 is configured to be locked to the locking part 202a. That is, the length L6 between the end part on the front side of the cut line 203K-1 and the fold line C200 between the front part 110 and the lid body 202 is substantially the same as the length L7 between the fold line C200 and the tip of the rotating piece part 114 (or the length L6 is longer than the length L7), and it is not the rotating piece part 114 that is locked to the locking part 202a, but the separating part 14 that is locked to the locking part 202a. That is, in the front perspective view of the packaging box P1, the length L8 from the fold line C200 to the lower end of the separating part 14 is formed to be longer than the length L6 and shorter than the length L9 between the fold line C200 and the fold line C203, whereby the separating part 14 is locked to the locking part 202a.

[0065] Note that although the cut line 203K is formed by a planned cutting line, it may also be formed by continuous notches. That is, the cut line 203K may be formed by a cut line composed of a cut line or a notch.

[0066] Also, the insertion piece part 204 has a horizontally long substantially rectangular shape with rounded corners formed on both sides of the tip side, and has a substantially rectangular notch 204K continuously provided from the notch 202K. The notch 204K forms the opening 201K together with the notch 202K. Note that the right side of the insertion piece part 204 is formed slightly on the left side surface side of the right side of the lid body 202.

[0067] At the opening 201K at the boundary between the lid body 202 and the insertion piece part 204 and the cuts 206K on both sides thereof, a part to be inserted 207 into which the tip part 144-2 of the insertion part 144 is inserted is formed.

[0068] Also, the flap part 210 is continuously provided from the upper side of the side surface part 120 via a fold line, and has a shape in which a notch part 212K is provided on the tip side with respect to a substantially trapezoidal shape and a notch part 214K is provided on the tip side of the back side.

[0069] That is, as shown in FIG. 6, the flap portion 210 includes a front side edge portion 210a continuously provided from the front side end of the upper side of the side surface portion 120, a tip side edge portion 210b continuously provided from the edge portion 210a, an edge portion 210c that forms a notch portion 212K continuously provided from the edge portion 210b, a tip side edge portion 210d continuously provided from the edge portion 210c, and a rear side edge portion 210e continuously provided from the edge portion 210d. The edge portion 210c has a pair of edge portions 210c-1 that form a substantially right angle with the upper side of the side surface portion 120 and are provided at intervals from each other, and a pair of edge portions 210c-2 that come into contact with each other with the interval decreasing toward the side surface portion 120 side from the pair of edge portions 210c-1. Further, a concave notch portion 214K is provided at the tip side of the edge portion 210e.

[0070] This notch portion 212K is provided so that the flap portion 210 does not get in the way when the separation portion 14 adhered to the rotation piece portion 114 is locked to the locking portion 202a formed by the cut line 203K. That is, when the packaging box P1 in the closed state is viewed in a plane perspective, as shown in FIG. 14, the cut line 203K and the locking portion 202a are arranged so as not to overlap the region of the flap portion 210. Further, the notch portion 214K is provided so that the flap portion 210 does not get in the way when the tip portion 144-2 is inserted into the insertion portion 207.

[0071] Further, the flap portion 220 is continuously provided from the upper side of the side surface portion 130 via a fold line and is formed symmetrically with the flap portion 210 in the left-right direction. That is, it has a shape in which a notch portion 222K is provided at the tip side with respect to a substantially trapezoidal shape and a notch portion 224K is provided at the tip side of the rear side.

[0072] That is, the flap portion 220 has a front side edge portion 220a continuously provided from the front side end portion of the upper side of the side surface portion 130, a tip side edge portion 220b continuously provided from the edge portion 220a, an edge portion 220c that forms a notch portion 222K continuously provided from the edge portion 220b, a tip side edge portion 220d continuously provided from the edge portion 220c, and a back side edge portion 220e. The edge portion 220c has a pair of edge portions 220c-1 that form a substantially right angle with respect to the upper side of the side surface portion 130 and are provided at intervals from each other, and a pair of edge portions 220c-2 that come into contact with each other with the interval decreasing toward the side surface portion 130 side from the pair of edge portions 220c-1. Further, a concave notch portion 224K is provided at the tip side of the edge portion 220e.

[0073] This notch portion 222K is provided so that the flap portion 220 does not get in the way when the separation portion 14 adhered to the rotating piece portion 114 is locked to the locking portion 202a formed by the cut line 203K. That is, when the packaging box P1 in the closed state is viewed in a plane perspective, as shown in FIG. 14, the cut line 203K and the locking portion 202a are arranged so as not to overlap the region of the flap portion 220. Further, the notch portion 224K is provided so that the flap portion 220 does not get in the way when the tip portion 144-2 is inserted into the insertion portion 207.

[0074] In the unfolded state of the lid portion 200, the upper side of the front portion 110, the upper side of the side surface portion 120, the upper side of the side surface portion 130, and the upper side of the back surface portion main body 142 are on the same straight line, and the edge portion 112f-1 that constitutes the lower side of the front portion 110, the edge portion 120a that constitutes the lower side of the side surface portion 120, the edge portion 130a that constitutes the lower side of the side surface portion 130, and the lower side of the back surface portion main body 142 are on the same straight line, and the length L5 between their upper side and lower side is formed shorter than the length L3 (see FIGS. 4 and 5).

[0075] In the state where the lid body B1 is assembled into a box shape, the front portion 110 and the back portion 140 are parallel to each other, and the side surface portion 120 and the side surface portion 130 are parallel to each other. Further, adjacent members in each member (front portion 110, side surface portions 120, 130, back portion 140) constituting the sleeve-shaped portion 101 are at right angles to each other (may be substantially right angles).

[0076] Next, the box body A1 and the lid B1 are adhered to each other at the location of the lower region 143-2 and the separation part 14. As a result, the sleeve-like part 101 of the lid B1 is provided along the outer surface of the sleeve-like part 1 in the box body A1. For example, the front part 110 is provided along the outer surface of the front part 10, the side part 120 is provided along the outer surface of the side part 20, the side part 130 is provided along the outer surface of the side part 30, and the back part 140 is provided along the outer surface of the back part 40.

[0077] In the state where the lid B1 is adhered to the box body A1, the upper edge of the sleeve-like part 101 of the lid B1 is located at a position substantially coinciding with the upper end of the box body A1 (strictly speaking, slightly above the upper end of the box body A1).

[0078] In addition, the packaging box P1 with the above configuration can be folded flat as shown in FIG. 11 by making the front part 110 substantially parallel to the side part 120 and making the side part 130 substantially parallel to the back part 140. In the box body A1 and the lid B1, folding grid lines are formed in advance at the locations of the respective fold lines.

[0079] Also, in the packaging box P1, the horizontal length of the front part 10 and the back part 40 is formed to be longer than the horizontal length of the side part 20 and the side part 30, and the horizontal length of the front part 110 and the back part 140 is formed to be longer than the horizontal length of the side part 120 and the side part 130. As a whole, the packaging box P1 has a configuration that is longer in the left-right direction than in the front-back direction.

[0080] The manufacturing process of the packaging box P1 with the above configuration will be described. First, the box body A1 and the lid B1 in the unfolded state are manufactured.

[0081] Next, the outer surface of the box body A1 is adhered to the inner surface of the lid body B1 (first adhesion step). That is, with the inner surface of the lid body B1 in the unfolded state facing upward, an adhesive is applied to the adhesion area with the separation part 14 in the rotation piece part 114, and an adhesive is also applied to the lower area 143-2 of the back part 140. Then, the box body A1 in the unfolded state is overlapped as shown in FIG. 8. As a result, the separation part 14 and the rotation piece part 114 are adhered, and the back part 40 and the adhesion area 143-2 are adhered. At that time, in the left-right direction, the fold line C2 and the fold line C12 are made to coincide. In the up-down direction, the upper side of the sleeve-shaped part 101 of the lid body B1 substantially coincides with the upper end of the box body A1, the lower end position of the fold line C12 substantially coincides with the upper end position of the fold line C2, and the lower end position of the fold line C13 substantially coincides with the upper end position of the fold line C3.

[0082] Next, each part constituting the bottom surface part 50 of the box body A1 is folded back inward with respect to the sleeve-shaped part 1. Further, the tip part 74 of the second piece part 70 is folded back outward with respect to the main body part 72, and the tip part 84 of the third piece part 80 is folded back outward with respect to the main body part 82 to obtain the state shown in FIG. 9 (folding-back step). That is, the first piece part 60 is folded back to the side of the side surface part 30 through the fold line at the boundary with the side surface part 30, the second piece part 70 is folded back to the side of the front part 10 through the fold line at the boundary with the front part 10, the third piece part 80 is folded back to the side of the back part 40 through the fold line at the boundary with the back part 40, the fourth piece part 90 is folded back to the side of the side surface part 20 through the fold line at the boundary with the side surface part 20. Further, the tip part 74 is folded back with respect to the main body part 72, and the tip part 84 is folded back with respect to the main body part 82.

[0083] Next, an adhesive is applied to the area of the first piece part 60 (the area shown by hatching (see FIG. 9)) (adhesive application step), and the back part 140 is folded back inward to the side of the side surface part 130 through the fold line C11 (folding-back step). As a result, the back part 40 is folded back to the side of the side surface part 30 through the fold line C1 to obtain the state shown in FIG. 10. Then, the tip part 84 and the first piece part 60 are adhered. When applying the adhesive, it may be applied to the tip part 84 instead of the first piece part 60.

[0084] Next, an adhesive is applied to the area of the fourth piece part 90 (the area shown by hatching (see FIG. 10)), the area of the adhesive margin part 49 (the area shown by hatching (see FIG. 10)), and the area of the adhesive margin part 149 (the area shown by hatching (see FIG. 10)) (adhesive application step). By folding the side surface part 120 inward to the side of the front surface part 110 via the fold line C13, the side surface part 20 is folded back to the side of the front surface part 10 via the fold line C3 to obtain the state shown in FIG. 11. Then, the fourth piece part 90 and the tip part 74 are adhered, the adhesive margin part 49 and the side surface part 20 are adhered, and the adhesive margin part 149 is adhered to the back surface part 140 (adhesion step).

[0085] Note that the application of the adhesive to the fourth piece part 90 and the adhesive margin parts 49 and 149 may be performed in the state of FIG. 9 before folding the side surface parts 140 and 40. That is, it may be performed in one step without dividing the adhesive application step into two steps.

[0086] Also, instead of the adhesive margin part 49, an adhesive may be applied to the adhesion area with the side surface part 20 of the adhesive margin part 49. Also, instead of the adhesive margin part 149, an adhesive may be applied to the adhesion area with the back surface part 140 of the adhesive margin part 149. Instead of the fourth piece part 90, an adhesive may be applied to the tip part 74.

[0087] In the above manner, the packaging box P1 is manufactured. Note that the above manufacturing is automatically performed by an assembling apparatus.

[0088] The usage state of the packaging box P1 having the above configuration will be described. When the packaging box P1 is not used, since the packaging box P1 can be folded into a flat plate shape (see FIG. 11), it is folded and stored.

[0089] Next, when using the packaging box P1, assemble the packaging box P1 as shown in FIGS. 1 to 3. That is, the front portion 110 and the back portion 140 of the lid B1 are parallel to each other, the side portions 120 and 130 are parallel to each other, the front portion 10 and the back portion 40 of the box body A1 are parallel to each other, the side portions 20 and 30 are parallel to each other, and the bottom portion 50 is perpendicular to the sleeve-like portion 1. By expanding the sleeve-like portions 1 and 101, the packaging box P1 can be assembled three-dimensionally.

[0090] Then, a plurality of articles to be stored (commodities) are stored in the box body A1 from above the packaging box P1. Note that the lid portion 200 and the flap portions 210 and 220 are in a state of being erected upward in advance, and the upper part of the lid B1 is in an open state. Therefore, the articles to be stored can be directly stored from above the packaging box P1. The articles to be stored should be such that the rotating piece portion 114 can be rotated inward as described later without any hindrance when the rotating piece portion 114 is rotated inward. After that, after closing the flap portions 210 and 220, the lid portion 200 is closed as shown in FIGS. 12 to 14. When closing the lid portion 200, the insertion piece portion 204 is inserted along the inner surface of the back portion main body 142, and the tip portion 144-2 is inserted into the insertion portion 207 between the lid portion main body 202 and the insertion piece portion 204.

[0091] When opening the packaging box P1, by pressing the rotating piece portion 114 of the lid B1 from the outside, the cut line 115K and the cut line 15K are broken, and the rotating piece portion 114 rotates inward with the separating portion 14 adhered to the inside of the rotating piece portion 114 (see FIG. 15).

[0092] Then, the lid B1 can be rotated with respect to the box body A1, and as shown in FIG. 16, the packaging box P1 can be opened, so that the articles stored in the box body A1 can be taken out. That is, the lid B1 (strictly speaking, the portion other than the lower region 143-2 of the lid B1) can be opened and closed with respect to the box body A1 via the fold line C143.

[0093] Note that by rotating the rotating piece portion 114, as shown in FIG. 15, the area of the rotating piece portion 114 opens. Therefore, as shown in FIG. 16, even if the lid body B1 is not opened with respect to the box body A1, the inside of the packaging box can be visually recognized, and the stored object to be stored can be visually recognized.

[0094] Further, by rotating the rotating piece portion 114 to the back surface of the lid body 202 and pressing the rotating piece portion 114 against the lid body 202, the cut line 203K is broken, and the area on the front side of the cut line 203K is lifted, so that the separating portion 14 is locked to the outside of the locking portion 202a (see FIGS. 17 and 18). As a result, compared with the case where the rotating piece portion 114 is locked to the locking portion 202a, it is not necessary to bend the rotating piece portion 114, so that the locking to the locking portion 202a becomes easy. In this way, by locking the separating portion 14 to the locking portion 202a, the rotating piece portion 114 is fixed along the back surface of the lid body 202, so that the inside of the packaging box can be more easily visually recognized.

[0095] Note that when the separating portion 14 is locked to the locking portion 202a, the cutout portions 212K and 222K are provided, so that the flap portions 210 and 220 do not get in the way.

[0096] Also, in FIGS. 15 to 17, the object to be stored stored inside the packaging box P1 is omitted from the drawing.

Embodiment

[0097] Next, the packaging box P2 of the second embodiment will be described. The packaging box P2 is configured as shown in FIGS. 19 to 24, and has a box body (inner box portion) A2 and a lid body (outer box portion) B2. Similar to the first embodiment, each of the box body A2 and the lid body B2 is formed of a single sheet-like blank (specifically, corrugated cardboard (especially double-sided corrugated cardboard), and may be cardboard or the like).

[0098] The box body A2 has a container shape with an open upper part as a whole, and as shown in FIGS. 19 to 21 etc., has a sleeve-shaped part (inner sleeve-shaped part) 1 and a bottom surface part 50. The sleeve-shaped part 1 is formed to stand upright from around the bottom surface part 50 in the assembled state, and has a front part (inner front part) 10, side parts (inner side parts, right side parts, inner right side parts) 20, side parts (inner side parts, left side parts, inner left side parts) 30, a back part (inner back part) 40, and a pasting margin part 49, and its unfolded state is formed as shown in FIG. 21.

[0099] Here, the front part 10 has a front part main body 12 and a separation part 14 continuously provided from a part of the upper side of the front part main body 12 via a cut line 15K.

[0100] The configuration of the front part main body 12 is the same as that of the front part main body 12 in the first embodiment except that the horizontal length is short, so a detailed description is omitted.

[0101] Also, the configuration of the separation part 14 is the same as that of the separation part 14 in the first embodiment. The separation part 14 is continuously provided via a cut line 15K provided along the side part 12c, and is formed to protrude above the upper end of the front part main body 12. This separation part 14 is adhered to the rotation piece part 114 of the front part 110 of the lid body B2. When the packaging box P2 is viewed through from the front, as shown in FIG. 30, the separation part 14 protrudes outside (particularly, downward) from the tip of the rotation piece part 114, and the cut line 15K is located outside the cut line 115K between the front part main body 112 and the rotation piece part 114 in the front part of the lid body B2.

[0102] As described above, in the front part 10, a part of the front part 10 is formed as a separation part 14 so as to be separable via a cut line 15K from the front part main body 12 which is a region other than the separation part 14 in the front part 10. The separation part 14 is provided in the upper end region of the front part 10, and the side parts other than the side part along the cut line 15K between the separation part 14 and the front part main body 12 are continuously provided from the side parts 12a and 12b which are the upper side parts of the front part main body 12.

[0103] Further, the side surface portion 20 is continuously provided from the right side of the front surface portion 10 via a broken line C2, and its upper side has a side portion 20a formed parallel to the lower side of the side surface portion 20 from the right end of the back surface portion 40, and a side portion 20b inclined downward from the front end of the side portion 20a.

[0104] Further, the side surface portion 30 is continuously provided from the left side of the front surface portion 10 via a broken line C1, and its upper side has a side portion 30a formed parallel to the lower side of the side surface portion 30 from the rear end of the side surface portion 30, and a side portion 20b inclined downward from the front end of the side portion 30a.

[0105] Note that the length L2 from the lower side to the upper end (i.e., the side portion 30a) of the side surface portion 30 is formed shorter than the length L1 from the lower side to the upper end (i.e., the side portion 20a) of the side surface portion 20, and is formed at least shorter by the length L4 (the length from the base end to the tip) of the insertion piece portion 204 than the length L1. This is because when the insertion piece portion 204 is inserted along the inside of the side surface portion 130 of the lid body B2, the upper end of the side surface portion 30 does not cause an obstruction.

[0106] Further, the back surface portion 40 is continuously provided from the rear side of the side surface portion 20 via a broken line C3, and its upper side has side portions 40a, 40b parallel to the lower side of the back surface portion 40, and a side portion 40c inclined downward from the left end of the side portion 40b. Also, the side portion 40d on the side opposite to the broken line C3 of the back surface portion 40 is parallel to the broken line C3. The side portions 40a, 40b are on the extension line of the side portion 20a in the unfolded state of the box body A2.

[0107] Further, the bottom surface portion 50 is a so-called one-touch bottom, and includes a first piece portion (the first piece portion of the bottom surface portion) 60 continuously provided from the lower side of the front surface portion 10 via a broken line, a second piece portion (the second piece portion of the bottom surface portion) 70 continuously provided from the lower side of the side surface portion 20 via a broken line, a third piece portion (the third piece portion of the bottom surface portion) 80 continuously provided from the lower side of the side surface portion 30 via a broken line, and a fourth piece portion (the fourth piece portion of the bottom surface portion) 90 continuously provided from the lower side of the back surface portion 40 via a broken line. The configuration of the bottom surface portion 50 is the same as that of the bottom surface portion 50 in the first embodiment. Since the first piece portion 60, the second piece portion 70, the third piece portion 80, and the fourth piece portion 90 have the same configuration as the respective portions in the bottom surface portion 50 of the first embodiment, detailed description thereof is omitted.

[0108] In addition, in the unfolded state of the box body A2, the lower side of the front surface portion 10, the lower side of the side surface portion 20, the lower side of the side surface portion 30, and the lower side of the back surface portion 40 are formed on the same straight line, and these lower sides constitute the lower side of the sleeve-like portion 1.

[0109] Also, in the state where the box body A2 is assembled into a box shape, the front surface portion 10 and the back surface portion 40 are parallel to each other, the side surface portion 20 and the side surface portion 30 are parallel to each other, and each member constituting the bottom surface portion 50 is substantially perpendicular (may be perpendicular) to the front surface portion 10, the side surface portions 20 and 30, and the back surface portion 40. Further, adjacent members in each member (the front surface portion 10, the side surface portions 20 and 30, the back surface portion 40) constituting the sleeve-like portion 1 are perpendicular to each other (may be substantially perpendicular).

[0110] Moreover, the box body A2 can be folded into a flat plate shape (see FIG. 28). In the state where the box body A2 is folded, each part constituting the bottom surface portion 50 is in a state substantially parallel to the front surface portion 10, the side surface portions 20 and 30, and the back surface portion 40 constituting the sleeve-like portion 1 within the sleeve-like portion 1.

[0111] The lid body B2 is a box body that covers substantially the upper half of the box body A2. As shown in FIGS. 19, 20, 22 to 24, it has a sleeve-like portion (outer sleeve-like portion) 101, a lid portion 200, and flap portions 210 and 220, and its unfolded state is formed as shown in FIGS. 22 to 24.

[0112] Here, in the assembled state, the sleeve-shaped portion 101 has a rectangular tubular shape, and includes a front portion (outer front portion) 110, a side portion (outer side portion, outer right side portion) 120, a side portion (outer side portion, outer left side portion) 130, a back portion (outer back portion) 140, and a pasting margin portion 149.

[0113] Further, the front portion 110 has the same configuration as the front portion 110 of the first embodiment except that the length in the left-right direction is short. That is, the front portion 110 has a generally rectangular shape as a whole, and has a rectangular shape with rounded portions formed at both lower ends. The front portion 110 includes a front portion main body 112 and a rotating piece portion 114 connected to the concave side portion of the front portion main body 112 via a cut line 115K. The rotating piece portion 114 is connected to the front edge of the flap portion (connected portion) 220 via a fold line (first fold line) C220.

[0114] The configuration of the rotating piece portion 114 is the same as that of the rotating piece portion 114 of the first embodiment. When the packaging box P2 is viewed from the front, the cut line 115K is outside the region of the rotating piece portion 114, the contour of the tip of the rotating piece portion 114 (that is, the portion along the tip of the rotating piece portion 114 at the cut line 115K) is above (inside) the cut line 15K, and the separating portion 14 protrudes below the tip of the rotating piece portion 114. Thereby, when the rotating piece portion 114 is pushed from the outside to break the cut line 115K and the cut line K15, there is no risk that the rotating piece portion 114 will catch on the upper side of the front portion main body 12.

[0115] As described above, the front portion 110 includes a rotating piece portion 114 connected to the flap portion 220 via a fold line C220, and a front portion main body 112 which is a region other than the rotating piece portion 114 in the front portion 110. The rotating piece portion 114 and the front portion main body 112 are partitioned via a cut line 115K connected from the fold line C220, and the rotating piece portion 114 is adhered to the separating portion 14.

[0116] Further, the side portion 120 is connected to the right side of the front portion 110 via a fold line C12, and has the same configuration as the side portion 120 of the first embodiment except that the length in the front-rear direction is long.

[0117] Further, the side surface portion 130 is continuously provided from the left side of the front surface portion 110 via the broken line C11, and has a configuration substantially symmetrical to the left and right with the side surface portion 120, but is different in that the insertion portion 134 is provided.

[0118] That is, the side surface portion 130 has a side surface body 132 and an insertion portion 134 continuously provided from the side surface body 132 via a broken line.

[0119] The side surface body 132 has a straight side portion 130a whose lower side is parallel to the upper side 130c of the side surface body 132, and a side portion 130b continuously provided from the front end of the side portion 130a and inclined upward toward the front side, and has a rectangular notch between a pair of upper sides 130c.

[0120] Further, the insertion portion 134 has a base end portion 134-1 continuously provided from the side surface body 132 via the broken line C130, and a tip end portion 134-2 continuously provided from the tip of the base end portion 134-1. Since the insertion portion 134 has the same configuration as the insertion portion 144 of the first embodiment, a detailed description thereof will be omitted.

[0121] Further, the back surface portion 140 is continuously provided from the rear side (the rear side portion) of the side surface portion 120 via the broken line C13 and has a substantially rectangular shape. The back surface portion 140 is partitioned into an upper region 143-1 and a lower region (the lower region of the outer back surface portion) 143-2 via the broken line C143, and the lower region 143-2 serves as an adhesion region to the back surface portion 40. A straight cut line 143K is provided at the boundary position between the lower region 143-2 and the side surface portion 120 from the position of the broken line C143 to the lower end so as not to hinder the rotation of the lid body B2 with respect to the box body A2. When the lid body B2 is rotated with respect to the box body A2, the cut line 143K breaks.

[0122] The bonding position to the back surface portion 40 of the lower region 143-2 is a position where the lower side of the back surface portion 140 is above the lower side of the back surface portion 40, and the upper side of the back surface portion 40 is below the upper side of the back surface body 142 (a position below by a length L4 or more). In a state where the lower region 143-2 is bonded to the back surface portion 40, the upper side of the sleeve-shaped portion 101 of the lid body B2 substantially coincides with the upper end of the box body A2. Note that the upper end of the box body A2 is the upper end of the side surface portion 20 (the position of the side portion 20a) and the upper end of the back surface portion 40 (the positions of the side portions 40a and 40b).

[0123] Also, the adhesive margin portion 149 is continuously provided from the left side of the back surface portion 140 via the broken line C14 and has an elongated strip-shaped trapezoidal shape in the vertical direction. The inner surface of this adhesive margin portion 149 is adhered to the outer surface of the end region on the back side of the side surface portion 130.

[0124] In this adhesive margin portion 149, a horizontal broken line C149 is provided at a position substantially the same height as the broken line C143, and a cut line 149K is provided from the position of the broken line C149 at the boundary position between the adhesive margin portion 149 and the back surface portion 140 to the lower end. When the lid body B2 is rotated with respect to the box body A2, the cut line 149K breaks, and there is no hindrance when the lid body B2 is rotated with respect to the box body A2.

[0125] Note that in the sleeve-shaped portion 101, the broken line C11, the broken line C12, the broken line C13, and the broken line C14 are formed parallel to each other and are perpendicular to the upper side of the sleeve-shaped portion 101.

[0126] Also, the lid portion 200 closes the upper opening of the sleeve-shaped portion 101. The lid portion 200 has a lid portion main body 202 continuously provided from the upper side of the side surface portion 120 via the broken line C200, and an insertion piece portion 204 continuously provided from the tip of the lid portion main body 202 via the broken line C202. The configuration of the lid portion 200 is substantially the same as the lid portion 200 of the first embodiment, but the length from the base end to the tip is formed longer, and the configuration of the cut line 208K formed in the lid portion main body 202 is different.

[0127] That is, the lid body 202 has a substantially square shape. The linear side portions on both the left and right sides form a right angle with the upper side of the side surface portion 120. A notch 202K is formed in the side portion on the tip side, and it protrudes from the fold line C200 that forms the boundary with the insertion piece portion 204 by the hook-shaped cut 206K and has a shape.

[0128] Also, in the region on the front side of the center in the front-rear direction in the lid body 202 (that is, the region above the cut line 223K in the state where the flap portion 220 and the lid portion 200 are closed), a cut line 208K is provided.

[0129] The cut line 208K has a linear cut line 208K-1 formed in a direction perpendicular to the fold line C200, a cut line 208K-2 continuously provided from the end portion on the fold line C200 side of the cut line 208K-1, and a cut line 208K-3 continuously provided from the end portion on the fold line C202 side of the cut line 208K-1. The cut line 208K-2 has a linear cut that is inclined with respect to the front-rear direction so as to be more on the front side as it goes toward the fold line C200 side, and a semicircular portion that turns from the tip of the cut toward the back side. The cut line 208K-3 is formed symmetrically with the cut line 208K-2 (line-symmetric with respect to the center line perpendicular to the cut line 208K-1), and has a linear cut that is inclined with respect to the front-rear direction so as to be more on the front side as it goes toward the fold line C202 side, and a semicircular portion that turns from the tip of the cut toward the back side.

[0130] This cut line 208K is such that when the rotating piece portion 114 is pushed into the flap portion 220 side to lock the separating portion 14 adhered to the rotating piece portion 114 to the locking portion 222a of the flap portion 220, the region on the front side of the cut line 208K bulges outward, making it easier to lock to the locking portion 222a.

[0131] That is, when the closed packaging box P2 is viewed in a plane perspective, as shown in FIG. 31, the cut line 223K and the locking portion 222a are present in the region on the front side of the cut line 208K, and the region on the front side of the cut line 208K bulges outward (that is, upward), making it easier to lock the separating portion 14 to the locking portion 222a.

[0132] Also, the insertion piece portion 204 has the same configuration as the insertion piece portion 204 of the first embodiment, has a substantially rectangular notch 204K continuously provided from the notch 202K, and the notch 204K forms an opening 201K together with the notch 202K.

[0133] At the opening 201K at the boundary between the lid body 202 and the insertion piece portion 204 and the cuts 206K on both sides thereof, an insertion portion 207 into which the tip portion 134-2 of the insertion portion 134 is inserted is formed.

[0134] Also, the flap portion 210 is continuously provided from the upper side of the back surface portion 140 via a broken line, has a substantially trapezoidal shape, and has a shape provided with a notch 214K on the tip side on the left side surface.

[0135] That is, the flap portion 210 has a side portion 210a on the right side surface continuously provided from the end portion on the right side surface side of the upper side of the back surface portion 140, a side portion 210b on the tip side continuously provided from the side portion 210a, and a side portion 210c on the left side surface continuously provided from the side portion 210b. A concave notch 214K is provided on the tip side of the side portion 210c. This notch 214K is provided so that the flap portion 210 does not get in the way when the tip portion 134-2 is inserted into the insertion portion 207.

[0136] Also, the flap portion 220 is continuously provided from the upper side of the front surface portion 110 via a broken line C220 and is formed symmetrically with the flap portion 210 in the left-right direction except that a cut line 223K is provided. That is, the outer shape of the flap portion 220 has a substantially trapezoidal shape and has a shape provided with a notch 224K on the tip side on the left side surface.

[0137] Also, the cut line 223K has the same configuration as the cut line 203K in the first embodiment. The cut line 223K has an arc-shaped cut line 223K-1 bulging toward the front part 110 side, a cut line 223K-2 continuously provided from the end on the right side surface side of the cut line 223K-1, and a cut line 223K-3 continuously provided from the end on the left side surface side of the cut line 223K-1. Since the cut line 223K-1 has the same configuration as the cut line 203K-1, the cut line 223K-2 has the same configuration as the cut line 203K-2, and the cut line 223K-3 has the same configuration as the cut line 203K-3, detailed description thereof will be omitted. Broken lines C223 are provided in the vicinity of both ends of the cut line 223K-1 in the left-right direction, and a locking portion 222a surrounded by the cut line 223K-1 and the broken lines C223 is formed. The locking portion 222a has a shape protruding toward the front part 110 side by the cut line 223K-1. Note that the cutout portion 224K is provided so that the flap portion 220 does not get in the way when the tip portion 134-2 is inserted into the insertion portion 207.

[0138] Thereby, by rotating the rotating piece portion 114 in the state where the separating portion 14 is adhered to the inside of the box body A2, the separating portion 14 is locked to the locking portion 222a. That is, the length L6 between the front side end of the cut line 223K-1 and the broken line C220 is substantially the same as the length L7 between the broken line C220 and the tip of the rotating piece portion 114 (or the length L6 is longer than the length L7), and it is not the rotating piece portion 114 that is locked to the locking portion 222a, but the separating portion 14 that is locked to the locking portion 222a. That is, in the front perspective view of the packaging box P2, the length L8 from the broken line C200 to the lower end of the separating portion 14 is formed longer than the length L6 and shorter than the length L9 between the broken line C220 and the broken line C223, whereby the separating portion 14 is locked to the locking portion 222a.

[0139] Note that although the cut line 223K is formed by a planned cutting line, it may be formed by continuous cuts. That is, the cut line 223K may be formed by a tangent line composed of a cut line or a cut.

[0140] In addition, in the unfolded state of the lid portion 200, the upper side of the front portion 110, the upper side of the side portion 120, the upper side of the side portion 130, and the upper side of the back portion main body 142 are on the same straight line, and the side portion 112f-1 constituting the lower side of the front portion 110, the side portion 120a constituting the lower side of the side portion 120, the side portion 130a constituting the lower side of the side portion 130, and the lower side of the back portion 140 are on the same straight line, and the length L5 between their upper side and lower side is formed shorter than the length L1.

[0141] In the state where the lid body B2 is assembled in a box shape, the front portion 110 and the back portion 140 are parallel to each other, and the side portion 120 and the side portion 130 are parallel to each other. In addition, adjacent members in each member (front portion 110, side portions 120, 130, back portion 140) constituting the sleeve-shaped portion 101 are perpendicular to each other (may be substantially perpendicular).

[0142] Next, the box body A2 and the lid body B2 are adhered to each other at the lower side region 143-2 and the separation portion 14. Thereby, similar to the packaging box P1 of the first embodiment, the sleeve-shaped portion 101 of the lid body B2 is provided along the outer surface of the sleeve-shaped portion 1 in the box body A2.

[0143] In the state where the lid body B2 is adhered to the box body A2, the upper side of the sleeve-shaped portion 101 of the lid body B2 is at a position that substantially coincides with the upper end of the box body A2 (strictly speaking, slightly above the upper end of the box body A2).

[0144] Note that the packaging box P2 having the above configuration can be folded flat like the packaging box P1 of the first embodiment (see FIG. 28). In the box body A2 and the lid body B2, folding grid lines are formed in advance at the locations of the respective fold lines.

[0145] In addition, in the packaging box P2, the horizontal length of the front portion 10 or the back portion 40 is formed shorter than the horizontal length of the side portion 20 or the side portion 30, and the horizontal length of the front portion 110 or the back portion 140 is formed shorter than the horizontal length of the side portion 120 or the side portion 130. As a whole, the packaging box P2 has a configuration that is longer in the front-rear direction than in the left-right direction.

[0146] The manufacturing process of the packaging box P2 with the above structure will be described. The manufacturing process of the packaging box P2 is the same as that of the packaging box P1.

[0147] That is, first, the box body A2 and the lid B2 in the unfolded state are manufactured. Next, the outer surface of the box body A2 is adhered to the inner surface of the lid B2 (first adhesion step). That is, with the inner surface of the unfolded lid B2 facing upward, the separation part 14 and the rotating piece part 114 are adhered, and the back part 40 and the lower region 143-2 are adhered (see FIG. 25). At this time, in the left-right direction, the fold line C2 and the fold line C12 are made to coincide, and in the up-down direction, the upper side of the sleeve-shaped part 101 of the lid B2 is made to substantially coincide with the upper end of the box body A2.

[0148] Next, each part constituting the bottom surface part 50 of the box body A2 is folded back inward with respect to the sleeve-shaped part 1. Further, the tip part 74 of the second piece part 70 is folded back outward with respect to the main body part 72, and the tip part 84 of the third piece part 80 is folded back outward with respect to the main body part 82 to obtain the state shown in FIG. 26 (folding-back step).

[0149] Next, an adhesive is applied to the region of the first piece part 60 (the region shown by hatching (see FIG. 26)) (adhesive application step), and the side surface part 130 is folded back inward to the side of the front surface part 110 via the fold line C11 (folding-back step). As a result, the side surface part 30 is folded back to the side of the front surface part 10 via the fold line C1 to obtain the state shown in FIG. 27. Then, the tip part 84 and the first piece part 60 are adhered.

[0150] Next, an adhesive is applied to the region of the fourth piece part 90 (the region shown by hatching (see FIG. 27)), the region of the adhesive margin part 49 (the region shown by hatching (see FIG. 27)), and the region of the adhesive margin part 149 (the region shown by hatching (see FIG. 27)) (adhesive application step). The back part 140 is folded back inward to the side of the side surface part 120 via the fold line C13, so that the back part 40 is folded back to the side of the side surface part 20 via the fold line C3 to obtain the state shown in FIG. 28. Then, the fourth piece part 90 and the tip part 74 are adhered, the adhesive margin part 49 and the back part 40 are adhered, and the adhesive margin part 149 is adhered to the side surface part 130 (adhesion step).

[0151] In this way, the packaging box P2 is manufactured. Note that the above manufacturing is automatically performed by an assembling device.

[0152] The usage state of the packaging box P2 with the above configuration will be described. When the packaging box P2 is not in use, since the packaging box P2 can be folded into a flat plate shape (see Fig. 28), it can be folded and stored.

[0153] Next, when using the packaging box P2, assemble the packaging box P2 as shown in Figs. 19 and 20.

[0154] Then, a plurality of items to be stored (products) are stored in the box body A2 from above the packaging box P2. Note that the items to be stored are such that the rotating piece portion 114 can be rotated inward as described later, so the items to be stored should be those that do not hinder the inward rotation of the rotating piece portion 114. After that, after closing the flap portions 210 and 220, close the lid portion 200 as shown in Figs. 29 to 31. When closing the lid portion 200, insert the insertion piece portion 204 along the inner surface of the back surface body 142 and insert the tip portion 134-2 into the portion to be inserted 207.

[0155] When opening the packaging box P2, by pushing the rotating piece portion 114 of the lid body B2 from the outside, the cut line 115K and the cut line 15K are broken, and the rotating piece portion 114 rotates inward with the separating portion 14 adhered to the inside of the rotating piece portion 114 (see Fig. 32).

[0156] Then, the lid body B2 can be rotated with respect to the box body A2, and as shown in Fig. 33, the packaging box P2 can be opened, so that the items stored in the box body A2 can be taken out. That is, the lid body B2 (strictly speaking, the portion other than the lower region 143-2 in the lid body B2) can be opened and closed with respect to the box body A2 via the fold line C143.

[0157] Note that, by rotating the rotating piece portion 114, as shown in FIG. 32, the area of the rotating piece portion 114 opens. Therefore, as shown in FIG. 33, even if the lid body B2 is not opened with respect to the box body A2, the inside of the packaging box can be visually recognized, and the stored object to be stored can be visually recognized.

[0158] Further, by rotating the rotating piece portion 114 to the back side surface of the flap portion 220 and pushing the rotating piece portion 114 against the flap portion 220, the cut line 223K is broken, and the area on the front side of the cut line 223K is lifted, so that the separating portion 14 is locked to the outside of the locking portion 222a (see FIG. 35). Since the cut line 208K is formed in the lid body 202, the area on the front side of the cut line 208K in the lid body 202 is pushed and the cut line 208K is broken, and the area on the front side of the cut line 208K bulges outward, so that the separating portion 14 can be easily locked to the locking portion 222a. The front perspective view of the state shown in FIG. 35 is as shown in FIG. 34.

[0159] Since the separating portion 14 is locked to the locking portion 222a, compared with the case where the rotating piece portion 114 is locked to the locking portion 222a, it is not necessary to bend the rotating piece portion 114, so that the locking to the locking portion 222a becomes easy. In this way, by locking the separating portion 14 to the locking portion 222a, the rotating piece portion 114 is fixed along the back surface of the flap portion 220, so that the inside of the packaging box can be more easily visually recognized.

[0160] Note that, in FIGS. 32 to 34, the object to be stored stored inside the packaging box P2 is omitted from the drawing.

Example

[0161] Next, the packaging box P3 of Example 3 will be described. The packaging box P3 is configured as shown in FIGS. 36 to 40, and has a box body (inner box portion) A3 and a lid body (outer box portion) B3, which is substantially the same as that of Example 1, except that the rotating piece portion 114 is pulled outward to break the separating portion 14.

[0162] That is, the box body A3 has a container shape with an open top as a whole, and as shown in FIGS. 36 to 39 and the like, it has a sleeve-shaped part (inner sleeve-shaped part) 1 and a bottom surface part 50. The sleeve-shaped part 1 has a front part (inner front part) 10, side parts (inner side parts, inner right side part) 20, side parts (inner side parts, inner left side part) 30, a back part (inner back part) 40, and a pasting margin part 49, and its unfolded state is formed as shown in FIGS. 38 and 39.

[0163] Here, the front part 10 has a front part main body 12 and a separation part 14 continuously provided from a part of the upper side of the front part main body 12 via cut lines 15K-1 and 15K-2.

[0164] The upper side of the front part main body 12 has a straight side part 12a inclined obliquely downward from the upper end of the fold line C3 between the side part 20 toward the left side surface, a straight side part 12b inclined obliquely downward from the upper end of the fold line C2 between the side part 30 toward the right side surface, and a side part 12c between the side part 12a and the side part 12b. As shown in FIG. 39, the side part 12c has a side part 12c-1 formed in an arc shape obliquely downward from the side part 12a toward the left side surface, a side part 12c-2 formed in an arc shape obliquely downward from the side part 12b toward the right side surface, and a side part 12c-3 formed between the side part 12c-1 and the side part 12c-2.

[0165] Here, the side part 12c-1 is formed along the cut line 15K-1, the side part 12c-2 is formed along the cut line 15K-2, and the side part 12c-3 is a side part along the lower side of the side of the semi-circular opening 16K. That is, since the side part 12c-1 and the side part 12c-2 are in contact with the lower side of the arc-shaped part of the opening 16K, the side part below the contact point between the side part 12c-1 and the side part 12c-2 in the opening 16K becomes the side part 12c-3. The side part 12c-1 and the side part 12c-2 constitute a part of the same arc.

[0166] The separating part 14 is continuously provided via a cutting line 15K-1 provided along the side part 12c-1 and a cutting line 15K-2 provided along the side part 12c-2, and the separating part 14 is formed to protrude above the upper side of the front part main body 12.

[0167] Also, the opening 16K is semicircular, the arc-shaped side part of the opening 16K is in contact with the separating part 14, and the lower side part of the arc-shaped side part of the opening 16K and the straight-line side part at the lower end are in contact with the front part main body 12.

[0168] This separating part 14 is provided between the side part along the cutting line 15K-1, the side part along the cutting line 15K-2, and the side part along the arc-shaped side part of the opening 16K surrounded by the side parts 14a to 14c. The side parts 14a to 14c have the same configuration as the side parts 14a to 14c in the separating part 14 of the first embodiment. A rotating piece part 114 of the front part 110 of the lid body B3 is adhered to this separating part 14.

[0169] As described above, in the front part 10, a part of the front part 10 is formed as a separating part 14 so as to be separable via the cutting lines 15K-1 and 15K-2 from the front part main body 12 which is the area other than the separating part 14 in the front part 10. The separating part 14 is provided in the upper end area of the front part 10, and the side parts 14a, 14b, and 14c other than the cutting lines 15K-1, 15K-2 and the side part along the opening 16K between the separating part 14 and the front part main body 12 are continuously provided from the side parts 12a and 12b which are the upper side parts of the front part main body 12.

[0170] Also, the side part 20 is continuously provided from the right side of the front part 10 via a broken line C3, its upper side is formed in a mountain shape that bulges upward, and it has a side part 20a formed parallel to the lower side of the side part 20, a side part 20b that inclines downward from the front end of the side part 20a, and a side part 20c that inclines downward from the rear end of the side part 20a.

[0171] Further, the side surface portion 30 is continuously provided from the left side of the front surface portion 10 via a broken line C2, and its upper side is formed in a mountain shape that rises upward, having an arcuate side portion 30a, a side portion 30b that inclines downward from the front end of the side portion 30a, and a side portion 30c that inclines downward from the rear end of the side portion 30a.

[0172] Note that the length L2 from the lower side to the upper end of the side surface portion 30 is substantially the same as the length L1 from the lower side to the upper end of the side surface portion 20.

[0173] Also, the back surface portion 40 is continuously provided from the rear side of the side surface portion 30 via a broken line C1. Since the configuration of the back surface portion 40 is the same as that of the back surface portion 40 in the first embodiment, a detailed description thereof is omitted.

[0174] Note that, similar to the case of the first embodiment, the length L3 from the lower side to the upper end (that is, the side portion 40a) of the back surface portion 40 is formed shorter than the length L1 and the length L2, and the length L3 is formed at least shorter than the length of the insertion piece portion 204 of the lid body B3 (the length from the base end to the tip) by the length of the insertion piece portion 204 of the lid body B3.

[0175] Also, the adhesive margin portion 49 is continuously provided from the side portion on the right side surface of the back surface portion 40 via a broken line C0, and has a vertically elongated strip-shaped trapezoidal shape. The outer surface of this adhesive margin portion 49 is adhered to the inner surface of the end region on the back side of the side surface portion 20.

[0176] Also, the bottom surface portion 50 is a so-called one-touch bottom, having a first piece portion (the first piece portion of the bottom surface portion) 60, a second piece portion (the second piece portion of the bottom surface portion) 70, a third piece portion (the third piece portion of the bottom surface portion) 80, and a fourth piece portion (the fourth piece portion of the bottom surface portion) 90. Since the configuration of the bottom surface portion 50 is the same as that of the bottom surface portion 50 in the first embodiment, a detailed description thereof is omitted.

[0177] Also, the lid body B3 is a box body that covers approximately the upper half of the box body A3, and as shown in FIGS. 36 and 37, has a sleeve-shaped portion (outer sleeve-shaped portion) 101, a lid portion 200, and flap portions 210 and 220, and its unfolded state is formed as shown in FIG. 40.

[0178] Here, in the assembled state, the sleeve-shaped portion 101 has a rectangular tubular shape, and includes a front portion (outer front portion) 110, side portions (outer side portions, outer right side portion) 120, side portions (outer side portions, outer left side portion) 130, a back portion (outer back portion) 140, and a pasting margin portion 149.

[0179] The front portion 110 generally has a substantially rectangular shape, and is a rectangular shape with rounded corners formed at both lower ends.

[0180] That is, the front portion 110 has a front portion main body 112 and a rotating piece portion 114 continuously provided from a concave side portion of the front portion main body 112 via a cut line (second cut line) 115K.

[0181] That is, the front portion main body 112 has side portions 112b and 112c that form a part of the upper side of the front portion 110 that forms the boundary with the lid portion 200, a concave side portion 112a formed between the side portions 112b and 112c, a side portion 112d along the fold line C13, a side portion 112e along the fold line C12, and a side portion 112f continuously provided from the lower end of the side portion 112d and the lower end of the side portion 112e. The side portion 112f forms the lower side portion of the front portion 110 and has a linear side portion 112f-1 parallel to the upper side of the front portion 110 and side portions 112f-2 and 112f-3 on both sides of the side portion 112f-1.

[0182] This side portion 112a has a pair of linear side portions formed in a tapered shape from the upper side of the front portion 110 and a linear side portion in the left-right direction formed between the pair of side portions. The pair of side portions have a tapered shape such that the length between the pair of side portions becomes shorter as it goes downward.

[0183] The rotating piece portion 114 is continuously provided from the front side (that is, the side portion that forms the boundary with the front portion 110) of the lid portion (continuous portion) 200 via a fold line (first fold line) C200, and has a shape surrounded by a side portion along the fold line and a side portion along the cut line 115K.

[0184] Also, from the straight cut line in the left - right direction at the cut line 115K (the lower cut line at the cut line 115K), a pair of straight cut lines 116K - 1 and 116K - 2 are formed in the up - down direction. The cut line 116K - 1 and the cut line 116K - 2 are provided with a space in the left - right direction. Between the upper ends of the cut line 116K - 1 and the cut line 116K - 2, a broken line C114 is provided in the left - right direction. The area between this cut line 116K - 1 and the cut line 116K - 2 becomes the pressing piece 116. That is, on the rotating piece part 114, a pair of left - right cut lines 116K - 1 and 116K - 2 are continuously provided from the cut line 115K, and a pressing piece (116), which is the area between the cut line 116K - 1 and the cut line 116K - 2, is provided.

[0185] In addition, when the packaging box P3 is viewed through from the front, as shown in FIG. 42, an opening 16K is provided at a position corresponding to the pressing piece 116 so that the pressing piece 116 of the rotating piece part 114 can be pushed inward. At least the lower region of the pressing piece 116 is within the region of the opening 16K. When pulling the rotating piece part 114 to the outside of the lid body B3, the separating part 14 is within the region of the rotating piece part 114 so that the separating part 14 is not caught by the front - part main body 112 of the lid body B3.

[0186] Also, when the packaging box P3 is viewed through from the front, although at least the lower region of the pressing piece 116 is within the region of the opening 16K, in order to make it easier to push the pressing piece 116, it is preferable that all regions of the pressing piece 116 in the front view are within the region of the opening 16K.

[0187] Also, although the cut lines 116K - 1 and 116K - 2 are formed by the planned cutting lines, they may be formed by continuous cuts. That is, the cut lines 116K - 1 and 116K - 2 may be formed by a cut line consisting of a cut line or a cut.

[0188] In addition, the length L7 from the fold line C200 to the lower end of the rotating piece portion 114 in the rotating piece portion 114 is formed to be longer than the length L6 between the front-side end of the cut line 203K-1 and the fold line C200 and shorter than the length L9 between the fold line C200 and the fold line C203. Thereby, the rotating piece portion 114 (particularly, the pressing piece 116) is locked to the locking portion 202a.

[0189] In addition, the side surface portion 120 has substantially the same configuration as the side surface portion 120 of the first embodiment. That is, the side surface portion 120 is continuously provided from the right side of the front surface portion 110 via the fold line C13, and its lower side has a linear side portion 120a parallel to the upper side of the side surface portion 120 and a side portion 120b continuously provided from the front-side end of the side portion 120a and inclined upward toward the front side.

[0190] The lower part of the corner between the front surface portion 110 and the side surface portion 120 has a shape cut out by the side portion 112f-2 and the side portion 120b, and in a state where the lid body B3 is closed, the lower end position of the fold line C13 substantially coincides with the upper end position of the fold line C3.

[0191] In addition, the side surface portion 130 has substantially the same configuration as the side surface portion 130 of the first embodiment. That is, the side surface portion 130 has a configuration substantially symmetric about the left and right with respect to the side surface portion 120. That is, the side surface portion 130 is continuously provided from the left side of the front surface portion 110 via the fold line C12, and its lower side has a linear side portion 130a parallel to the upper side of the side surface portion 130 and a side portion 130b continuously provided from the front-side end of the side portion 130a and inclined upward toward the front side.

[0192] The lower part of the corner between the front surface portion 110 and the side surface portion 130 has a shape cut out by the side portion 112f-3 and the side portion 130b, and in a state where the lid body B3 is closed, the lower end position of the fold line C12 substantially coincides with the upper end position of the fold line C2.

[0193] Moreover, the back surface portion 140 has substantially the same configuration as the back surface portion 140 of the first embodiment. That is, the back surface portion 140 is continuously provided from the side edge on the back side of the side surface portion 130 via the broken line C11, and has a back surface portion main body 142 and an insertion portion 144 continuously provided from the back surface portion main body 142 via a broken line.

[0194] The back surface portion main body 142 is partitioned into an upper region 143-1 and a lower region (outer lower back surface region) 143-2 via the broken line C143, and the lower region 143-2 serves as an adhesion region to the back surface portion 40. A linear cut 143K is provided at the boundary position between the lower region 143-2 and the side surface portion 130 from the position of the broken line C143 to the lower end, so as not to interfere when the lid body B3 rotates with respect to the box body A3. When the lid body B3 is rotated with respect to the box body A3, the cut line 143K breaks.

[0195] The adhesion location of the lower region 143-2 to the back surface portion 40 is a position where the lower side of the back surface portion 140 is above the lower side of the back surface portion 40 and the upper side of the back surface portion 40 is below the upper side of the back surface portion main body 142 (a position below by a length L4 or more). When the lower region 143-2 is adhered to the back surface portion 40, the upper side of the sleeve-shaped portion 101 of the lid body B3 substantially coincides with the upper end of the box body A3 (strictly speaking, slightly above the upper end of the box body A1), the lower end position of the broken line C13 substantially coincides with the upper end position of the broken line C3, and the lower end position of the broken line C12 substantially coincides with the upper end position of the broken line C2. The upper end of the box body A3 is the upper end of the side surface portion 20 (the position of the side edge 20a) and the upper end of the side surface portion 30 (the upper end of the side edge 30a).

[0196] Also, the adhesive margin portion 149 has substantially the same configuration as the adhesive margin portion 149 of the first embodiment. That is, the adhesive margin portion 149 is continuously provided from the end portion on the back side of the side surface portion 120 via the fold line C14, and the inner surface thereof is adhered to the outer surface of the end region on the right side surface side of the back surface portion 140. Further, a fold line C149 is provided in the adhesive margin portion 149, and a cut line 149K is provided at the boundary position between the adhesive margin portion 149 and the side surface portion 120. When the lid body B3 is rotated with respect to the box body A3, the cut line 149K is broken so that there is no obstacle when the lid body B3 is rotated with respect to the box body A3.

[0197] Further, the lid portion 200 closes the upper opening of the sleeve-shaped portion 101, and the lid portion 200 includes a lid portion main body 202 continuously provided from the upper side of the front surface portion 110 via a fold line C200, and an insertion piece portion 204 continuously provided from the tip of the lid portion main body 202 via a fold line C202.

[0198] The configuration of the lid portion main body 202 is the same as that of the lid portion main body 202 of the first embodiment, and the insertion piece portion 204 has the same configuration as the insertion piece portion 204 of the first embodiment, so detailed description thereof will be omitted.

[0199] Note that a cut line 203K having the same configuration as the cut line 203K of the first embodiment is provided in the lid portion main body 202, and a locking portion 202a having the same configuration as the locking portion 202a of the first embodiment is provided. The cut line 203K may be formed by a cut line composed of a cut line or a notch.

[0200] Further, an inserted portion 207 having the same configuration as the inserted portion 207 of the first embodiment is provided between the lid portion main body 202 and the insertion piece portion 204.

[0201] Also, the flap portion 210 has the same configuration as the flap portion 210 of the first embodiment, and the flap portion 220 has the same configuration as the flap portion 220 of the first embodiment, so detailed description thereof will be omitted.

[0202] In the state where the lid B3 is assembled in a box shape, the front part 110 and the back part 140 are parallel to each other, and the side part 120 and the side part 130 are parallel to each other.

[0203] Next, the box body A3 and the lid B3 are adhered to each other at the location of the lower region 143-2 and the separation part 14. As a result, the sleeve-shaped part 101 of the lid B3 is provided along the outer surface of the sleeve-shaped part 1 in the box body A3.

[0204] In the state where the lid B3 is adhered to the box body A3, the upper side of the sleeve-shaped part 101 of the lid B3 is located at a position that substantially coincides with the upper end of the box body A3 (strictly speaking, slightly above the upper end of the box body A3).

[0205] Note that, similar to the case of the packaging box P1 in the first embodiment, the lateral length of the front part 10 and the back part 40 of the packaging box P3 in the third embodiment is formed to be longer than the lateral length of the side part 20 and the side part 30, and the lateral length of the front part 110 and the back part 140 is formed to be longer than the lateral length of the side part 120 and the side part 130. As a whole, the packaging box P3 has a configuration that is longer in the left-right direction than in the front-back direction.

[0206] Since the manufacturing process of the packaging box P3 with the above configuration is the same as that of the packaging box P1, a detailed description is omitted.

[0207] The usage state of the packaging box P3 with the above configuration will be described. When the packaging box P3 is not in use, it can be folded flat like the packaging box P1 in the first embodiment, so it can be folded and stored.

[0208] Next, when using the packaging box P3, assemble the packaging box P3 as shown in FIGS. 36 and 37.

[0209] Then, a plurality of items to be stored (products) are stored in the box body A3 from above the packaging box P3. After that, after closing the flap portions 210 and 220, the lid portion 200 is closed as shown in FIG. 41. When closing the lid portion 200, the insertion piece portion 204 is inserted along the inner surface of the back surface portion main body 142, and the tip portion 144-2 is inserted into the portion to be inserted 207.

[0210] When opening the packaging box P3, by pushing the push piece 116 provided on the rotation piece portion 114 of the lid body B3 from the outside, when the cut lines 116K-1 and 116K-2 are broken, the area of the push piece 116 is opened. Then, insert a finger into the opening and pull the rotation piece portion 114 outward while pinching the rotation piece portion 114. Then, the cut line 115K is broken, and the cut lines 15K-1 and 15K-2 are broken, and the rotation piece portion 114 in the state where the separation portion 14 is adhered rotates outward (see FIG. 43).

[0211] Then, the lid body B3 can be rotated with respect to the box body A3, and as shown in FIG. 44, the packaging box P3 can be opened, so that the items to be stored in the box body A3 can be taken out. That is, the lid body B3 (strictly speaking, the portion other than the lower region 143-2 in the lid body B3) can be opened and closed with respect to the box body A3 via the fold line C143.

[0212] Note that by rotating the rotation piece portion 114, as shown in FIG. 43, the area of the rotation piece portion 114 is opened. Therefore, even if the lid body B3 is not opened with respect to the box body A3 as shown in FIG. 44, the inside of the packaging box can be visually recognized, and the stored items to be stored can be visually recognized.

[0213] Also, by rotating the rotation piece portion 114 to the upper surface of the lid portion main body 202 and pushing the rotation piece portion 114 against the lid portion main body 202, the cut line 203K is broken, and the area on the front side of the cut line 203K is pushed downward, and the rotation piece portion 114 (particularly, the push piece 116) is locked outside the locking portion 202a (see FIGS. 45 and 46).

[0214] In this way, by locking the rotating piece portion 114 to the locking portion 202a, the rotating piece portion 114 is fixed along the upper surface of the lid body 202, so that the inside of the packaging box can be made easier to visually recognize.

[0215] In the packaging box P3 of the above-described Embodiment 3, it is configured to be longer in the left-right direction than in the front-back direction. However, it may be configured to be longer in the front-back direction than in the left-right direction. That is, in the packaging box P2 of Embodiment 2, instead of the rotating piece portion 114, the rotating piece portion 114 in the packaging box P3 may be used. That is, the pressing piece 116 may be provided on the rotating piece portion 114 by the cut lines 116K-1 and 116K-2, and the rotating piece portion 116 may be rotated outward to lock the pressing piece 116 to the locking portion 222a provided on the flap portion 220.

Explanation of Reference Numerals

[0216] P1, P2, P3 Packaging boxes A1, A2, A3 Box bodies B1, B2, B3 Lids 1 Sleeve-like portion 10 Front portion 12 Front portion body 14 Separation portion 15K Cut line 15K-1 Cut line 15K-2 Cut line 16K Opening 20 Side portion 30 Side portion 40 Rear portion 49 Glue margin portion 50 Bottom portion 60 First piece portion 70 Second piece portion 80 Third piece portion 90 Fourth piece portion 101 Sleeve-like portion 110 Front portion 112 Front portion body 114 Rotating piece portion 116 Pressing piece 115K Cut line 120 Side portion 130 Side portion 132 Side face body 134 Insertion part 134-1 Base end part 134-2 Tip end part 140 Back face 142 Back face body 143-1 Upper region 143-2 Lower region 143K Scoring line 144 Insertion part 144-1 Base end part 144-2 Tip end part 149 Adhesive margin part 149K Scoring line 200 Cover part (connected part) 202 Cover part body 202a Locking part 203K Scoring line 204 Insertion piece part 207 Inserted part 208K Notch 210 Flap part 212K Notch 214K Notch 220 Flap part (connected part) 222a Locking part 222K Notch 223K Scoring line 224K Notch C0, C1, C2, C3, C11, C12, C13, C14, C143, C149, C200, C202, C203, C223 Fold lines

Claims

1. A packing box, comprising a box body (A1, A2, A3) and a lid (B1, B2, B3), wherein the box body and the lid are each formed from a sheet-like blank, the box body comprising: a bottom surface portion (50), an inner sleeve-like portion (1) erected from each side of the bottom surface portion and forming a substantially right angle with the bottom surface portion, the inner sleeve-like portion having an inner front portion (10), a pair of opposed inner side portions (20, 30), and an inner rear portion (40), and in a state where the box body is assembled into a box shape, the inner sleeve-like portion in which adjacent faces among the four faces of the inner front portion, the pair of inner side portions, and the inner rear portion form a substantially right angle, in the inner front portion, a part of the inner front portion is formed as a separating portion (14) so as to be separable from an inner front portion main body (12) which is a region other than the separating portion in the inner front portion via a first cut line (15K), and the separating portion is provided in an upper end region in the inner front portion, the lid comprising: an outer sleeve-like portion (101) provided along the outer surface of the box body, the outer sleeve-like portion having an outer front portion (110) formed along the outer surface of the inner front portion, outer side portions (120, 130) respectively formed along the outer surfaces of the respective inner side portions in the pair of inner side portions, and an outer rear portion (140) formed along the outer surface of the inner rear portion, and in a state where the lid is assembled into a box shape, the outer sleeve-like portion in which adjacent faces among the four faces of the outer front portion, the pair of outer side portions, and the outer rear portion form a substantially right angle, a connecting portion (200, 220) continuously provided from the upper end of the outer front portion via a first fold line (C200, C220), the outer front portion having a rotating piece portion (114) continuously provided from the connecting portion via a first fold line and an outer front portion main body (112) which is a region other than the rotating piece portion in the outer front portion, the rotating piece portion and the outer front portion main body being partitioned via a second cut line (115K) continuously provided from the first fold line, and the rotating piece portion being adhered to the separating portion, a second fold line (C143) is provided in the outer rear portion in the left-right direction, and an outer rear portion lower region (143-2) which is a region below the second fold line in the outer rear portion is adhered to the inner rear portion, By breaking the first cut line and the second cut line, the rotating piece portion to which the separating portion is adhered becomes rotatable with respect to the connecting portion, and a portion other than the outer rear portion lower region in the lid becomes openable and closable with respect to the box body via the second fold line. A packing box characterized by this.

2. A locking portion (202a, 222a) having a shape protruding toward the outer front portion side is provided by a cut line (203K-1, 223K-1) consisting of a cut line or a notch formed in the connecting portion. In the front perspective view of the packaging box, the first cut line is outside the region of the rotating piece portion. The packaging box according to claim 1, characterized in that by pushing the rotating piece portion toward the back side, the first cut line and the second cut line are broken, the rotating piece portion to which the separating portion is adhered is rotated inward, and pressed against the inner surface of the connecting portion, so that the separating portion is locked to the locking portion.

3. A locking portion (202a, 222a) having a shape protruding toward the outer front portion side is provided by a cut line (203K-1) consisting of a cut line or a notch formed in the connecting portion. On the rotating piece portion, a pair of left and right cut lines (116K-1, 116K-2) consisting of a cut line or a notch are connected from the second cut line, and a pressing piece (116) which is a region between the pair of left and right cut lines is provided. An opening (16K) is provided at a position corresponding to the pressing piece on the inner front portion, and the opening is provided in contact with the separating portion and the inner front portion main body. The packaging box according to claim 1, characterized in that by pushing the pressing piece, inserting a finger into the opening and pinching the rotating piece portion, and rotating the rotating piece portion outward, the first cut line and the second cut line are broken, and by pressing the rotating piece portion against the outer surface of the connecting portion, the pressing piece is locked to the locking portion.

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