Packaging box, and blank group

Abstract

To provide a packaging box that can stabilize the state of the box body retained by fitting into the opening of the box holding body.SOLUTION: A packaging box has a box holding body including: a box body for storing an item to be housed; an opening that the box body can fit into; and a movable piece part that extends from the edge of the opening and can rotate around a fold line provided at the edge. In a state where the box body is fitted into the opening, the movable piece part contacts the side of the box body.SELECTED DRAWING: Figure 13

Description

Technical Field

[0001] The present invention relates to a packaging box configured by combining a box body for storing an object to be stored and a box holder having an opening into which the box body can be fitted. The present invention also relates to a group of blanks constituting the above packaging box.

Background Art

[0002] Among packaging members, there are those in which a storage portion for storing an object to be stored and a portion for holding the storage portion are separately configured, such as a blister pack (see, for example, Patent Document 1).

[0003] The package described in Patent Document 1 is composed of a package forming piece punched out from a blank sheet and a buffer holding film that covers an opening formed in the front plate of the package forming piece. Further, in the package described in Patent Document 1, a product to be stored is stored in the opening covered by the buffer holding film and is visible through the buffer holding film.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As an example of an article for storing an object to be stored and a portion for holding the portion being separable from each other, like the package described in Patent Document 1, a packaging box having a box body and a box holder capable of holding the box body can be considered. As a configuration of such a packaging box, for example, an opening is provided in the box holder, and it can be assumed that the box body is held by the box holder by fitting the box body in the state of storing the object to be stored into the opening. For a packaging box having such a configuration, it is preferable that the state in which the box body is held by the box holder can be stably maintained.

[0006] The present invention has been made in view of the above circumstances, and specifically, an object thereof is to provide a packaging box capable of stabilizing the state in which the box body is fitted into the opening of the box holder and held. Another object of the present invention is to provide a blank group constituting the above packaging box.

Means for Solving the Problems

[0007] In order to achieve the above object, the packaging box of the present invention includes a box body for storing an object to be stored, an opening into which the box body can be fitted, and a movable piece portion that extends from the edge of the opening and is rotatable about a folding line provided on the edge, and a box holder having the same, and in a state where the box body is fitted into the opening, the movable piece portion is in contact with the side surface of the box body. In the packaging box of the present invention, by the movable piece portion coming into contact with the side surface of the box body fitted into the opening, the box body can be pressed against the edge of the opening, and as a result, the state in which the box body is held by the box holder can be favorably stabilized.

Effects of the Invention

[0008] According to the packaging box of the present invention, it is possible to stabilize the state in which the box body is held by the box holder.

Brief Description of the Drawings

[0009]

Figure 1

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Figure 16

Best Mode for Carrying Out the Invention

[0010] <<Regarding One Embodiment of the Present Invention>> Hereinafter, the packaging box of the present invention will be described with specific embodiments (hereinafter referred to as the present embodiment). It should be noted that the embodiments described below are merely examples given for facilitating the understanding of the present invention and do not limit the present invention. That is, the present invention can be changed or improved from the embodiments described below without departing from its gist. In addition, equivalents of the present invention are included therein. Also, the shape, dimensions, opening structure, etc. of the packaging box of the present invention are not particularly limited, and may be set to be suitable according to the use of the packaging box.

[0011] In addition, in this specification, the meanings of "the same", "identical", and "equal" may include the range of errors generally acceptable in the technical field to which the present invention belongs.

[0012] In addition, in this specification, "orthogonal", "perpendicular", and "parallel" shall include the range of errors acceptable in the technical field to which the present invention belongs. For example, "orthogonal", "perpendicular", and "parallel" in this specification mean that they are within a range of less than ±10° with respect to strict orthogonality, perpendicularity, or parallelism, etc. It should be noted that the error from strict orthogonality (perpendicularity) or strict parallelism is preferably 5° or less, and more preferably 3° or less.

[0013] The packaging box 10 according to the present embodiment stores the product S in a state where the product S, which is the object to be stored, can be confirmed, and is used, for example, in a state of being displayed in a store or the like that sells the product S. As shown in FIG. 1, the packaging box 10 is composed of a box body 20 and a box holder 50.

[0014] As shown in Fig. 1, the box body 20 and the box holder 50 are separate from each other and are each created individually, and then the two are combined to form a single packaging box 10 (see Fig. 3). Further, in the present embodiment, the box body 20 and the box holder 50 are made of a decomposable material such as paper for reasons such as reducing environmental impact. In the present embodiment, they are created by bending a paper sheet (specifically, the box blank 30 and the holder blank 90 described later). Note that the materials of the box body 20 and the box holder 50 may be materials other than paper. For example, the box body 20 and the box holder 50 may be constituted by a plastic sheet made from a resin material such as polypropylene (PP).

[0015] The box body 20 is a rectangular parallelepiped box corresponding to the main body part of the packaging box 10, and the product S is stored inside it. As shown in Fig. 1, the box body 20 has a top wall 22, a bottom wall 24 located on the opposite side of the top wall 22, and four side walls 26 disposed between the top wall 22 and the bottom wall 24 and orthogonal to each of the top wall 22 and the bottom wall 24. Further, as shown in Fig. 1, a confirmation hole 28 for confirming the product S stored in the box body 20 is provided in one of the four side walls 26 (hereinafter, the hole-forming wall 26A).

[0016] Note that in the present embodiment, a seal or tag with the lot number of the product S is attached to the end face of the product S, and as can be seen from Fig. 1, the product S is stored in the box body 20 in a direction and posture in which the seal or tag faces the confirmation hole 28. The shape, size, and number of products S that can be accommodated in the box body 20 are not particularly limited.

[0017] The box holder 50 is used as a cardboard (base) for holding the box body 20. In the present embodiment, as shown in FIG. 1, it has a flat cylindrical shape. As shown in FIG. 2, the box holder 50 has an outer shape that is substantially rectangular when viewed from the front. Its longitudinal direction corresponds to the vertical direction (hereinafter referred to as the vertical direction) of the box holder 50, and its short-side direction corresponds to the width direction (hereinafter referred to as the width direction) of the box holder 50. The planar size of the box holder 50 when viewed from the front is more than one size larger than the planar size of the box body 20, strictly speaking, the planar sizes of each of the top wall 22 and the bottom wall 24. Note that viewing the box holder 50 from the front means viewing the box holder 50 from the surface portion 52 side in a state of facing the surface portion 52 of the box holder 50. In other words, it means viewing the box holder 50 in a plan view with the surface on the back surface portion 54 side of the box holder 50 as the installation surface. Also, the vertical direction corresponds to the first direction of the present invention, the width direction corresponds to the second direction of the present invention, and they intersect (specifically, are orthogonal) with each other.

[0018] Also, as shown in FIG. 1, an opening 56 is provided in the central portion of the box holder 50 when the box holder 50 is viewed from the front. The opening 56 is a space having an open end on the surface portion 52 side of the box holder 50, and the back surface portion 54 of the box holder 50 forms the bottom of the opening 56. Here, the surface portion 52 and the back surface portion 54 are two portions facing each other in the thickness direction (hereinafter referred to as the thickness direction) of the box holder 50. Among them, the surface portion 52 is the portion arranged on the side (the exposed side) that is visually recognized by customers or visitors when the packaging box 10 is displayed in a store or the like. Note that the thickness direction corresponds to the third direction of the present invention, and it intersects (specifically, is orthogonal) with both the vertical direction and the width direction.

[0019] As can be seen from FIGS. 1 to 3, the box body 20 enters inside the opening 56 (specifically, within the region surrounded by the edge of the opening 56), and can be fitted with the opening 56 in the thickness direction. When the box body 20 reaches the state of being fitted into the opening 56 (hereinafter, the fitted state), the box body 20 is held. Further, in the present embodiment, the depth of the opening 56 is relatively shallow. As shown in FIG. 3, when in the fitted state, more than half of the portion of the box body 20 in the thickness direction extends outside the opening 56 in the thickness direction. Therefore, even in the fitted state, the confirmation hole 28 provided in the box body 20 is exposed outside the opening 56 in the thickness direction, and the product S (specifically, the lot number of the product S) inside the box body 20 can be confirmed through the confirmation hole 28. By providing the confirmation hole 28 in this way, even if the box body 20 is not made of transparent plastic, the product S inside the box body 20 can be confirmed.

[0020] [Detailed Configuration of Packaging Box] Next, as the detailed configuration of the packaging box 10, a configuration example of each of the box body 20 and the box holder 50 will be described. In the following description, when each of the blank constituting the box body 20 (hereinafter, the box blank 30) and the blank constituting the box holder (hereinafter, the holder blank 90) is viewed in plan, one direction in which each blank extends is defined as the X direction. Also, a direction orthogonal to the X direction is defined as the Y direction. Here, viewing each blank in plan means looking at one end face (main face) of each blank in the thickness direction, in other words, looking at each blank from its thickness direction. Also, the combination of the box blank 30 and the holder blank 90 corresponds to the "blank group" of the present invention.

[0021] (Box Body) The configuration of the box body 20 will be described with reference to FIGS. 4 to 6. As shown in FIG. 4, the box body 20 has a rectangular parallelepiped-shaped box portion 20A capable of storing a product S (object to be stored), and a tongue-shaped insertion piece portion 32 that protrudes outward from the outer edge of the box portion 20A (the side away from the box portion 20A). The box portion 20A is composed of a substantially square top wall 22, a bottom wall 24, and four substantially rectangular side walls 26. The outer surfaces of the top wall 22, the bottom wall 24, and the side walls 26 respectively correspond to the top surface, the bottom surface, and the side surfaces of the box body 20.

[0022] Also, the length of the short side of the side wall 26 corresponds to the height of the box portion 20A, that is, the height of the box body 20, and is sufficiently larger than the depth of the opening 56 provided in the box holder 50. Also, as shown in FIG. 4, one of the four side walls 26 corresponds to a hole-forming wall 26A, and the above-mentioned confirmation hole 28 is provided in the hole-forming wall 26A. In the present embodiment, the confirmation hole 28 is a circular hole, and a plurality of them (three in the case shown in FIG. 4) are provided at regular intervals in the longitudinal direction of the hole-forming wall 26A. However, the shape and number of the confirmation holes 28 are not particularly limited, and may be set to suitable values according to the size and number of the products S stored in the box body 20, etc. Also, the hole-forming wall 26A may be any of the four side walls 26.

[0023] Also, as shown in FIG. 5, in the box body 20, an insertion hole 34 formed by a cut is provided at the center of the boundary line between one side of the top wall 22, specifically, the side wall 26 located on the opposite side of the hole-forming wall 26A and the top wall 22. When the box body 20 is fitted into the opening 56 of the box holder 50, the insertion portion 78 provided in the box holder 50 can be inserted into this insertion hole 34.

[0024] The insertion piece portion 32 is a portion that protrudes from the long side of the hole-forming wall 26A, specifically, the center portion of the boundary line between the hole-forming wall 26A and the bottom wall 24, and is inserted into the insertion hole 80 provided in the box holder 50 when the box body 20 is fitted into the opening 56 of the box holder 50 (see FIG. 11).

[0025] The box body 20 configured as described above is created, for example, by bending a box blank 30 shown in FIG. 6. The box blank 30 is a paper sheet, and folding lines or cutting lines indicated by broken lines in FIG. 6 are formed at the boundary lines of each part in the blank. When assembling the box body 20 from the box blank 30, each part of the blank is bent along each folding line and cut along each cutting line. In addition, as a suitable folding line, there is no particular limitation as long as it is a line for folding the paper sheet constituting the box blank 30. For example, known and general-purpose ruled lines such as lead ruled lines can be exemplified. For the reason of enhancing the ease of folding along the ruled line, it is preferable that a perforation line or the like as a breaking line is provided on a part of the ruled line. Also, as a suitable cutting line, there is no particular limitation as long as a part of the paper sheet constituting the box blank 30 can be cut along the line. For example, known cutting lines such as sewing blade lines can be exemplified.

[0026] The paper material forming the box blank 30 can be used without limitation as long as it is paper having sufficient strength to form the box body 20. In this embodiment, for example, it is paper having a structure in which a core is sandwiched between two liners on the front and back, such as a corrugated cardboard sheet or cardboard. Therefore, in the box blank 30, the direction in which the waves of the corrugated shape formed by the core are continuous (the extending direction of the stripes drawn within the chain line circle in FIG. 6) is defined as the step direction. In this embodiment, the Y direction coincides with the step direction of the box blank 30, and the X direction is orthogonal to the step direction. Note that the structure of the box blank 30 is not limited to the above structure. For example, it may have a structure consisting of two liners on the front and back without a core, or a structure consisting of only one liner.

[0027] Hereinafter, while referring to FIG. 6, each part of the box blank 30 will be described. When describing each part of the box blank 30, the name of each part will be denoted by the name of the part formed by each part when the box body 20 is created from the box blank 30. For example, among the box blank 30, the part forming the top wall 22 will be denoted as the top wall 22.

[0028] 6, in the box blank 30, the box-side joint 36, the bottom wall 24, the first side wall 26, the top wall 22, and the second side wall 26 are arranged in this order in the X direction. The first side wall 26 is located at one end (e.g., the left side) in the width direction of the finished packaging box 10, and the second side wall 26 is located at the other end (e.g., the right side) in the width direction. When the box body 20 is produced from the box blank 30, the box-side joint 36 is joined to the second side wall 26 and fixed with adhesive, tape, or the like. Of the five sections aligned in the X direction, creases L1, L2, L3, and L4 are formed as folding lines at the boundary between two adjacent sections. These creases are parallel to the Y direction and run along the aforementioned steps, making it easy to fold along the creases L1 to L4.

[0029] In addition, an insertion piece 32 protrudes from the central portion in the X direction of one end of the bottom wall 24 in the Y direction, more specifically, the ridge line located at the lower end of the box body 20 in the finished packaging box 10, toward the outside in the Y direction (the side away from the bottom wall 24). A first inner flap 38 is provided adjacent to one end in the Y direction of each of the first side wall 26 and the second side wall 26, with creases L5 and L7 as folding lines interposed therebetween. Similarly, a second inner flap 40 is provided adjacent to the other end in the Y direction of each of the first side wall 26 and the second side wall 26, with creases L6 and L8 as folding lines interposed therebetween.

[0030] Furthermore, a third side wall 26 and a fourth side wall 26 are provided adjacent to each other in the Y direction at both ends of the top wall 22, with creases L9 and L10 interposed therebetween as folding lines. The third side wall 26 adjacent to the top wall 22 via crease L9 forms the top surface in the up-down direction of the box body 20 in the finished packaging box 10. Furthermore, a notch forming the aforementioned insertion hole 34 is formed in the center of crease L9 in the X direction.

[0031] The insertion hole 34 formed by the above-mentioned notch is formed along the X direction and has a length of about several centimeters in the same direction. Further, in the present embodiment, as shown in FIG. 6, the insertion hole 34 is composed of a parallel portion 34a parallel to the X direction and inclined portions 34b continuous with both ends of the parallel portion 34a in the X direction and inclined with respect to the X direction. Each inclined portion 34b is inclined so as to move away from the third side wall 26 in the Y direction as it moves away from the parallel portion 34a in the X direction. According to such a configuration, when the third side wall 26 is bent with respect to the top wall 22, the insertion hole 34 can be easily opened so as to exhibit the function as an insertion hole. Further, as shown in FIG. 6, the ends of the respective inclined portions 34b on the side opposite to the parallel portion 34a are curved in an arc shape. Thereby, breakage accompanying the opening of the insertion hole 34 can be prevented.

[0032] The fourth side wall 26 adjacent to the top wall 22 via the grid line L10 forms the lower surface in the vertical direction of the box body 20 in the finished product packaging box 10 and corresponds to the aforementioned hole forming wall 26A. Further, a plurality of confirmation holes 28 are provided in the fourth side wall 26 at regular intervals in the X direction. Note that the side wall on which the confirmation hole 28 is provided is not limited to the fourth side wall 26 forming the lower surface of the box body 20, and any of the other side surfaces 26 (that is, the first side wall 26, the second side wall 26, and the third side wall 26) may be used.

[0033] Additionally, each of the third side wall 26 and the fourth side wall 26 is continuous with the insertion flap 42 at an end opposite the top wall 22 in the Y direction. The insertion flap 42 is folded along creases L11 and L12, which serve as folding lines provided at the boundary between the insertion flap 42 and the side wall 26 adjacent to the insertion flap 42, and inserted inside the box-shaped portion 20A and positioned adjacent to the bottom wall 24. At this time, the insertion flap 42 on one end side in the Y direction is inserted into the gap between the bottom wall 24 and the first inner flap 38 and engaged with the first inner flap 38, and the insertion flap 42 on the other end side in the Y direction is inserted into the gap between the bottom wall 24 and the second inner flap 40 and engaged with the second inner flap 40. This allows the box body 20 to stably maintain its shape (three-dimensional shape) when the box blank 30 is folded to form the box body 20.

[0034] In this embodiment, notches R are provided at both ends of the ruled lines L11, L12 in the X direction. The notches R are formed several millimeters from the end positions of the ruled lines L11, L12. The provision of the notches R makes it easier for the X direction end of the insertion flap 42 to be engaged with the first inner flap 38 or the second inner flap 40 when the insertion flap 42 is inserted into the box-shaped portion 20A. More specifically, when the insertion flap 42 is inserted into the box-shaped portion 20A, a portion of each of the first inner flap 38 and the second inner flap 40 fits into the notches R. As a result, the three-dimensional shape of the box body 20 is maintained more stably.

[0035] (box holder) The structure of the box holder 50 will be described with reference to FIGS. As shown in FIGS. 7 and 8, the box holder 50 has a flat cylindrical three-dimensional shape, and the shape when cut along a cross section with the vertical direction as the normal direction is spindle-shaped. In other words, as shown in FIG. 7, the surface portion 52 of the box holder 50 is curved in an arc shape such that the central portion of the surface portion 52 in the width direction is farther from the back surface portion 54 than the end portions of the surface portion 52. Similarly, the back surface portion 54 is curved in an arc shape such that the central portion of the back surface portion 54 in the width direction is farther from the surface portion 52 than the end portions of the back surface portion 54. The degree of curvature (curvature) of each of the surface portion 52 and the back surface portion 54 is not particularly limited, but is preferably set to a value suitable for the box holder 50 to exhibit its function.

[0036] The surface portion 52 is continuous with the back surface portion 54 at one end in the width direction and is joined to the back surface portion 54 at the other end in the width direction, whereby the cylindrical box holder 50 is formed. Further, as shown in FIG. 8, a front protruding portion 58 protrudes from the ridge line at the upper end of the surface portion 52 toward the back surface portion 54 in the thickness direction. Similarly, a back protruding portion 60 protrudes from the ridge line at the upper end of the back surface portion 54 toward the surface portion 52 in the thickness direction. The front protruding portion 58 and the back protruding portion 60 are each provided at the central portion in the width direction of the box holder 50 and have a width dimension of about several centimeters.

[0037] Furthermore, a front insertion portion 62 (see FIG. 9) protrudes from the tip of the front protruding portion 58. On the other hand, as shown in FIG. 8, a back insertion hole 64 into which the front insertion portion 62 can be inserted is provided at the boundary line between the back surface portion 54 and the back protruding portion 60, that is, at the upper end of the back surface portion 54. The box holder 50 maintains the above three-dimensional shape by overlapping the front protruding portion 58 on the back protruding portion 60 as shown in FIG. 8 and inserting the front insertion portion 62 into the back insertion hole 64.

[0038] 7 and 8, the box holder 50 has an opening 56 into which the box body 20 can fit. The opening 56 is a recessed space extending from an opening end provided in the front surface 52 to the back surface 54. As shown in FIGS. 7 and 8, the opening 56 according to this embodiment has a first opening 56A that is rectangular in shape when the box holder 50 is viewed from the front, and a second opening 56B that is an inverted isosceles trapezoid.

[0039] The first opening 56A is located at the center in the width direction of the box holder 50 and at the center in the up-down direction. The first opening 56A is the portion into which the box body 20 fits (see FIG. 1), and the shape and size of its edge substantially match the shape and size of the outer edge of the box body 20 (more specifically, the box-shaped portion 20A) when viewed in a plan view. Note that viewing the box body 20 in a plan view means viewing the box body 20 from the top wall 22 side in a direction perpendicular to the top wall 22 of the box body 20, in other words, viewing the box body 20 from directly above with the bottom surface of the box body 20 as the installation surface.

[0040] The second opening 56B is disposed below the first opening 56A in the up-down direction and is continuous with the first opening 56A. The width of the second opening 56B is shorter than the width of the first opening 56A, and the center of the second opening 56B is located at approximately the same position as the center of the first opening 56A in the width direction. In other words, as shown in Figures 7 and 8, the region of the edge of the first opening 56A that is located at the lower end in the up-down direction has portions that are located outside the second opening 56B in the width direction (hereinafter referred to as outer end portions 56i of the lower end region) on one end side and the other end side in the width direction.

[0041] Here, the outer end portion 56i of the lower end region at the edge of the first opening 56A and the lower end region 56j at the edge of the second opening 56B (see FIGS. 7 and 8) correspond to the upper and lower end regions at the edge of the opening 56. Further, the outer end portion 56i of the lower end region at the edge of the first opening 56A corresponds to both end portions in the width direction within the end region, and the lower end region 56j at the edge of the second opening 56B corresponds to the middle portion in the width direction within the end region. Furthermore, as can be seen from FIGS. 7 and 8, in the vertical direction, the lower end region 56j at the edge of the second opening 56B is outside, that is, closer to the end of the box holder 50, than the outer end portion 56i of the lower end region at the edge of the first opening 56A, and in this embodiment, it is on the lower side in the vertical direction.

[0042] Also, as shown in FIGS. 7, 8, and 10, a movable piece portion 66 extends from the edge of the opening 56. The movable piece portion 66 is a portion that can rotate about a ruled line serving as a bending line provided at the edge of the opening 56. In this embodiment, as shown in FIGS. 7 and 8, it has a first movable piece portion 68, a second movable piece portion 70, and a third movable piece portion 72.

[0043] The first movable piece portion 68 is substantially trapezoidal and extends from the outer end portion 56i of the lower end region at the edge of the first opening 56A. In this embodiment, the lower end region at the edge of the first opening 56A includes the outer end portions 56i at both ends in the width direction, and the first movable piece portions 68 extend from the respective outer end portions 56i. Each first movable piece portion 68 is rotatable about a ruled line on the outer end portion (specifically, the ruled line L27 in FIG. 10). And in the box holder 50, as shown in FIGS. 7 and 8, each first movable piece portion 68 rotates and enters into the first opening 56A in the thickness direction and is arranged within the first opening 56A along the thickness direction. Thereby, the state in which the box holder 50 has the above-described three-dimensional shape can be maintained well.

[0044] The second movable piece 70 has a rectangular shape with a narrowed central portion, extends from a lower end region 56j at the edge of the second opening 56B, and is rotatable about a ruled line on that region (more specifically, ruled line L28 in FIG. 10) as a base point. In the box holder 50, as shown in FIGS. 7 and 8, the second movable piece 70 rotates to enter the second opening 56B in the thickness direction and is disposed within the second opening 56B along the thickness direction. This allows the box holder 50 to more effectively maintain the three-dimensional shape described above. Furthermore, a crease (more specifically, crease L29 in FIG. 10 ) is formed in the middle of the second movable piece 70 in the up-down direction as a folding line along the width direction. The second movable piece 70 is bent along the crease into a substantially L-shape and disposed within the second opening 5B. Of the L-shaped second movable piece 70, a portion corresponding to one side of the L (hereinafter, one side 70a) extends along the thickness direction, and a portion corresponding to the other side of the L (hereinafter, other side 70b) extends along the back surface 54. This allows the box holder 50 to more effectively maintain the three-dimensional shape described above.

[0045] Furthermore, in this embodiment, a punched hole 74 is provided in the portion between each first movable piece 68 and second movable piece 70 in the width direction. This punched hole 74 is a hole formed by punching out a holder blank 90, which is a sheet that constitutes the box holder 50. By providing the punched hole 74, the first movable piece 68 and the second movable piece 70 are separated and spaced apart from each other. This distributes stress during rotation, and as a result, the first movable piece 68 and the second movable piece 70 can each be easily rotated.

[0046] The third movable piece 72 has a substantially rectangular shape, extends from a region of the edge of the first opening 56A that is located at the top end in the vertical direction, and is rotatable about a ruled line on that region (more specifically, ruled line L26 in FIG. 10 ) as a base point. In the box holder 50, as shown in FIGS. 7 and 8 , the third movable piece 72 has been rotated to be outside the opening 56 in the thickness direction, and stands up from the surface portion 52 along the thickness direction. The height (length in the thickness direction) of the third movable piece 72 in the upright state is set so that the sum of this height and the depth of the opening 56 is slightly smaller than the height of the box main body 20 (more specifically, the length of the short side of the side wall 26).

[0047] 7 and 8, the box holder 50 further has a continuous piece 76 that is continuous with both the first movable piece 68 and the second movable piece 70. The continuous piece 76 is rectangular and long in the width direction, and is continuous with each of the first movable piece 68 at its end in the width direction and with the other side 70b of the second movable piece 70 at its center in the width direction. In addition, a crease (more specifically, crease L30) is formed as a folding line at the boundary between each of the first movable piece 68 and the continuous piece 76. 7 and 8, in the box holder 50, as the first movable piece 68 and the second movable piece 70 are fitted into the opening 56, the continuous piece 76 also fits into the opening 56 in the thickness direction, and more specifically, is disposed within the first opening 56A. The continuous piece 76 is also bent relative to each first movable piece 68 at ruled line L30, which is the boundary between each first movable piece 68 and the continuous piece 76, and is disposed along the back surface 54. This allows the box holder 50 to maintain the above-described three-dimensional shape more effectively.

[0048] Furthermore, as shown in FIGS. 7 and 8, insertion holes 80 are formed in the continuous piece portion 76. The insertion holes 80 are holes formed by punching out a blank 90 for the holder, and when the box body 20 is fitted into the opening 56, the insertion piece portion 32 of the box body 20 is inserted therein. By inserting the insertion piece portion 32 into the insertion holes 80, the fitting state between the box body 20 and the opening 56, that is, the state in which the box body 20 is held by the box holder 50 can be maintained more stably.

[0049] In this embodiment, the insertion holes 80 are, for example, rectangular with chamfered upper corners, and are provided at positions adjacent to the other side portion 70b of the second movable piece portion 70 in the central portion in the width direction of the continuous piece portion 76. Since the upper corners of the insertion holes 80 are chamfered, the insertion piece portion 32 can be easily inserted into the insertion holes 80. However, the shape, formation position, etc. of the insertion holes 80 are not limited as long as the insertion piece portion 32 can be smoothly inserted therein.

[0050] As shown in FIGS. 7 and 8, the box holder 50 further has an insertion portion 78 formed of a protrusion extending from the tip of the third movable piece portion 72 (that is, the end on the opposite side of the upper end at the edge of the opening 56). The insertion portion 78 can be inserted into an insertion hole 34 provided in the box body 20 when the box body 20 is fitted into the opening 56. By inserting the insertion portion 78 into the insertion hole 34, the fitting state between the box body 20 and the opening 56, that is, the state in which the box body 20 is held by the box holder 50 can be maintained even more stably. Also, a ruled line as a bending line (specifically, the ruled line L31 in FIG. 10) is formed at the boundary position between the third movable piece portion 72 and the insertion portion 78, and the insertion portion 78 is bent along the above-mentioned ruled line L31 when being inserted into the insertion hole 34.

[0051] The box holder 50 having the configuration described above is created, for example, by bending the blank 90 for the holder shown in FIGS. 9 and 10. The blank 90 for the holder is a paper sheet, and bending lines or cutting lines indicated by broken lines are formed at the boundary lines of each part in the blank in FIGS. 9 and 10. When assembling the box holder 50 from the blank 90 for the holder, each part of the blank is bent along each bending line and cut along each cutting line. In addition, as a suitable bending line, there is no particular limitation as long as it is a line for bending the paper sheet constituting the blank 90 for the holder. For example, known and general-purpose ruled lines such as lead ruled lines can be exemplified. For the reason of enhancing the ease of bending along the ruled line, it is preferable that a perforation line or the like as a breaking line is provided on a part of the ruled line. Also, as a suitable cutting line, there is no particular limitation as long as a part of the paper sheet constituting the blank 90 for the holder can be cut along the line. For example, known cutting lines such as sewing blade lines can be exemplified.

[0052] The paper material forming the blank 90 for the holder can be used without limitation as long as it is a paper having sufficient strength to form the box holder 50. In this embodiment, for example, it is a paper having a structure in which a core is sandwiched between two liners on the front and back, such as a corrugated cardboard sheet or a thick paper. Therefore, in the blank 90 for the holder, the direction in which the waves of the corrugated shape formed by the core are continuous (the extending direction of the stripes drawn within the chain-dotted circle in FIG. 9) is defined as the step direction. In this embodiment, the Y direction coincides with the step direction of the blank 90 for the holder, and the X direction is orthogonal to the step direction. Note that the structure of the blank 90 for the holder is not limited to the above structure. For example, it may have a structure consisting of two liners on the front and back without a core, or a structure consisting of only one liner.

[0053] 9 and 10, each part of the holder blank 90 will be described. When describing each part of the holder blank 90, the name of each part will be written as the name of the part that each part will form when the box holder 50 is made from the holder blank 90. For example, the part of the holder blank 90 that forms the surface portion 52 will be written as the surface portion 52.

[0054] 9, in the holder blank 90, a holder-side joint portion 92, a front surface portion 52, and a back surface portion 54 are arranged in this order from the left side of the paper in the X direction. When the box holder 50 is made from the holder blank 90, the holder-side joint portion 92 is joined to the back surface portion 54 and fixed with adhesive, tape, or the like. Of the three sections aligned in the X direction, creases L21 and L22 are formed as folding lines at the boundary between two adjacent sections. These creases are parallel to the Y direction and run along the aforementioned steps, making it easy to fold along the creases L21 and L22.

[0055] Furthermore, a front-side protrusion 58 protrudes outward in the Y direction (away from the front surface 52) from the center in the X direction of one end of the front surface 52, more specifically, the ridge line located at the upper end of the completed box holder 50. A crease L23 is formed as a folding line at the boundary between the front-side protrusion 58 and the front surface 52. Similarly, a rear-side protrusion 60 protrudes outward in the Y direction (away from the back surface 54) from the center in the X direction of one end of the back surface 54, more specifically, the ridge line located at the upper end of the completed box holder 50. A crease L24 is formed as a folding line at the boundary between the rear-side protrusion 60 and the back surface 54. Furthermore, at the tip of the front side protrusion 58, i.e., the end located opposite the surface portion 52 in the Y direction, a front side insertion portion 62 is provided adjacent to it in the Y direction via a crease line L25 as a folding line.

[0056] The ruled lines L23, L24, and L25 are aligned in the X direction and intersect (specifically, perpendicular to) the grain of the paper that forms the holder blank 90. This increases the strength (bending strength) of the front-side protrusion 58 and the front-side insertion portion 62 when they are folded at each ruled line.

[0057] The front-side insertion portion 62 has a base end 62a adjacent to the front-side protrusion 58 in the Y direction, and an adjacent portion 62b adjacent to the base end 62a on the opposite side of the front-side protrusion 58. The adjacent portion 62b is generally trapezoidal and wider than the base end 62a. In other words, the adjacent portion 62b is provided with a generally triangular protrusion 62c that protrudes outward beyond the end of the base end 62a in the X direction (the width direction of the box holder 50).

[0058] Furthermore, a notch forming the aforementioned back-side insertion hole 64 is formed in the central portion in the X direction of the ruled line L24, which is the boundary line between the back-side protrusion 60 and the back surface portion 54. The back-side insertion hole 64 is formed along the X direction, and in this embodiment, as shown in FIG. 9, is composed of a parallel portion 64a that is parallel to the X direction and an inclined portion 64b that is continuous with both X-direction ends of the parallel portion 64a and is inclined with respect to the X direction. Each inclined portion 64b is inclined so that the farther it is from the parallel portion 64a in the X direction, the farther it is from the back-side protrusion 60 in the Y direction. Furthermore, as shown in FIG. 9, the end of each inclined portion 64b opposite the parallel portion 64a is curved in an arc shape.

[0059] In this embodiment, the width dimension (length in the X direction) of the front-side insertion portion 62 is the same as or slightly longer than the width dimension of the back-side insertion hole 64. Here, the width dimension of the front-side insertion portion 62 is the distance from one end to the other end in the X direction of the adjacent portion 62b of the front-side insertion portion 62, specifically the distance from the outer end of the protruding portion 62c on one end side in the X direction to the outer end of the protruding portion 62c on the other end side in the X direction. The width dimension of the back-side insertion hole 64 is the distance from one end to the other end in the X direction of the notch that forms the back-side insertion hole 64, specifically the distance from the outer end of the inclined portion 64b on one end side in the X direction to the outer end of the inclined portion 64b on the other end side in the X direction.

[0060] When bending the blank 90 for the holding body to create the box holding body 50, the front protruding portion 58 is bent along the ruled line L23, the back protruding portion 60 is bent along the ruled line L24, and the front protruding portion 58 is overlapped on the back protruding portion 60. Then, the front insertion portion 62 bent along the ruled line L25 is inserted into the back insertion hole 64. Here, since the back insertion hole 64 is composed of a parallel portion 64a and inclined portions 64b located on both sides thereof, when the back protruding portion 60 is bent along the ruled line L24, the back insertion hole 64 can be widened starting from the outer ends in the X direction of the inclined portions 64b. As a result, it becomes easier to insert the front insertion portion 62 into the back insertion hole 64.

[0061] Also, at both ends in the X direction of the front insertion portion 62, protruding portions 62c that protrude outward from the end of the base end portion 62a in the X direction are provided, and the front insertion portion 62 has the same width as or slightly wider than the back insertion hole 64. Therefore, when the front insertion portion 62 is inserted into the back insertion hole 64, the protruding portions 62c are arranged at positions where they can be locked to the edge portions of the back insertion hole 64 in the X direction (the width direction in the box holding body 50). Thereby, it is possible to prevent the front insertion portion 62 from coming out of the back insertion hole 64, and as a result, the three-dimensional shape of the box holding body 50 can be stably maintained.

[0062] As shown in FIG. 10, a pair of first cutting lines L32 and a pair of second cutting lines L33 are formed at the central portion in the X direction of the surface portion 52. These cutting lines define the end positions in the width direction of the opening 56 and extend parallel to the Y direction. Also, the pair of first cutting lines L32 are closer to the front protruding portion 58 than the pair of second cutting lines L33 in the Y direction and are at the same position as the pair of second cutting lines L33 in the X direction. Further, in the X direction, the intervals between the pair of first cutting lines L32 and the intervals between the pair of second cutting lines L33 are each set to a predetermined length, specifically, the same length as the width of the opening 56 (strictly speaking, the first opening 56A).

[0063] 10, a punched portion 94 of a predetermined shape is provided in a portion located between the pair of first cutting lines L32 and the pair of second cutting lines L33 in the Y direction. This punched portion 94 is a rectangular hole formed so that the above-mentioned insertion portion 78 remains inside the punched portion 94. In addition, in the X direction, both ends of the punched portion 94 are located at the same positions as the pair of first cutting lines L32 and the pair of second cutting lines L33.

[0064] In addition, one of the two first movable piece portions 68 is provided at a position adjacent to one of the pair of second cutting lines L33 in the X direction, and the other first movable piece portion 68 is provided at a position adjacent to the other second cutting line L33. In addition, as shown in Fig. 10, a crease L27 serving as a folding line extends in the X direction from one end of each second cutting line L33 (the end opposite the front-side protrusion 58). Each first movable piece portion 68 is provided in a state where it can rotate around the crease L27 as a base point.

[0065] 10, a continuous piece 76 is provided between a pair of second cutting lines L33, continuing to each of the first movable piece portions 68 via the ruled line L30. This configuration allows the continuous piece 76 to rotate smoothly relative to each of the first movable piece portions 68. The continuous piece 76 is adjacent to the punched portion 94 on the opposite side of the third movable piece portion 72 in the Y direction. An insertion hole 80 is provided in the center of the continuous piece 76 in the X direction.

[0066] 10, a second movable piece portion 70 is disposed between the two first movable piece portions 68 in the X direction. One end of the second movable piece portion 70 in the Y direction is continuous with the continuous piece portion 76, and the other end thereof in the Y direction is disposed at a position farther away from the continuous piece portion 76 in the Y direction than the first movable piece portion 68. A crease L29 is provided as a folding line at approximately the center of the second movable piece portion 70 in the Y direction. This crease L29 allows the second movable piece portion 70 to rotate smoothly. Furthermore, at the end of the second movable piece portion 70 in the Y direction, on the side opposite to the continuous piece portion 76, a ruled line L28 as a folding line is provided. With this ruled line L28, the second movable piece portion 70 can be rotated more favorably. As shown in FIG. 10, the ruled line L28 is separated from the continuous piece portion 76 more than the ruled line L27 which is the folding starting point of the first movable piece portion 68 in the Y direction, and at the stage when the box holding body 50 is created, it is at a position closer to the lower end of the box holding body 50.

[0067] Also, as shown in FIG. 10, in the X direction, one punching hole 74 is provided between each of the first movable piece portions 68 and the second movable piece portions 70. In the blank 90 for the holding body, the shape of the punching hole 74 is a substantially fan shape, specifically, a fan shape with a central angle of about 120 degrees. Also, the apex of the fan formed by the punching hole 74 is located at the inner end in the X direction of the ruled line L27 which is the folding starting point of the first movable piece portion 68 (the end on the side where the second movable piece portion 70 is located in the X direction). Also, as shown in FIG. 10, one end in the Y direction of the arc of the fan formed by the punching hole 74 is adjacent to one end in the Y direction of the continuous piece portion 76, and the other end in the Y direction is located at the end of the ruled line L28 which is the folding starting point of the second movable piece portion 70.

[0068] Also, in the X direction, a third movable piece portion 72 is provided at a position adjacent to each of the pair of first cutting lines L32, and an insertion portion 78 is continuous with the tip (one end in the Y direction) of the third movable piece portion 72. The third movable piece portion 72 and the insertion portion 78 are adjacent to the punched portion 94 in the Y direction. Also, as shown in FIG. 10, at the boundary position of the third movable piece portion 72, a ruled line L26 as a folding line is provided so as to connect one end (the end on the side where the front side protruding portion 58 is located) of the pair of first cutting lines L32. The third movable piece portion 72 is arranged in a rotatable state with the ruled line L26 as a base point. The insertion portion 78 can be bent at a ruled line L31 which is the boundary line between the third movable piece portion 72 and the insertion portion 78.

[0069] The insertion portion 78 has a base end portion 78a adjacent to the third movable piece portion 72 in the Y direction, and an adjacent portion 78b adjacent to the base end portion 78a on the opposite side of the third movable piece portion 72. The adjacent portion 78b is generally trapezoidal and wider than the base end portion 78a. In other words, the adjacent portion 78b is provided with a generally triangular protruding portion 78c that protrudes outward beyond the end of the base end portion 78a in the X direction (the width direction of the box holder 50).

[0070] In this embodiment, the width dimension (length in the X direction) of the insertion portion 78 is the same as or slightly wider than the width dimension of the insertion hole 34 provided in the box main body 20. Here, the width dimension of the insertion portion 78 is the distance from one end to the other end in the X direction of the adjacent portion 78b of the insertion portion 78, specifically, the distance from the outer end of the protruding portion 78c on one end side in the X direction to the outer end of the protruding portion 78c on the other end side in the X direction. The width dimension of the insertion hole 34 is the distance from one end to the other end in the X direction of the notch forming the insertion hole 34, specifically, the distance from the outer end of the inclined portion 34b on one end side in the X direction to the outer end of the inclined portion 34b on the other end side in the X direction.

[0071] When fitting the box main body 20 into the opening 56, the insertion portion 78 bent at the crease L31 is inserted into the insertion hole 34. Here, the insertion hole 34 is configured with the parallel portion 34a and the inclined portions 34b located on both sides thereof. Therefore, in the box main body 20 produced by bending the box blank 30 at each crease, the insertion hole 34 provided at the crease L9 can be further widened starting from the outer ends of the inclined portions 64b in the X direction. As a result, the insertion portion 78 can be easily inserted into the insertion hole 34.

[0072] Furthermore, when the insertion portion 78 is inserted into the insertion hole 34, the protrusion 78c is positioned in a position where it can be engaged with the edge of the insertion hole 34 in the width direction (second direction) of the box holder 50. This prevents the insertion portion 78 from slipping out of the insertion hole 34, and as a result, the state in which the box body 20 is fitted into the opening 56 can be maintained more stably.

[0073] To create the box holder 50 using the blank 90 for the holder configured as described above, first, the blank 90 for the holder is bent along the ruled lines L21 and L22, and each of the front surface portion 52 and the back surface portion 54 is curved into an arc shape, and the holder-side joint portion 92 is joined to the back surface portion 54. Also, the front-side protruding portion 58 is bent along the ruled line L23, and the back-side protruding portion 60 is bent along the ruled line L24, and the front-side protruding portion 58 is overlapped on the back-side protruding portion 60, and the front-side insertion portion 62 bent along the ruled line L25 is inserted into the back-side insertion hole 64. Thereby, the blank 90 for the holder forms a three-dimensional shape of a flat cylinder type.

[0074] Thereafter, the two first movable piece portions 68 are mountain-folded along the ruled line L27, the second movable piece portion 70 is mountain-folded along the ruled line L28, the central portion in the Y direction of the second movable piece portion 70 is valley-folded along the ruled line L29, and further, the third movable piece portion 72 is valley-folded along the ruled line L26. Thereby, in the front surface portion 52, an opening 56 is formed at the central portion in each of the X direction and the Y direction, and the two first movable piece portions 68, the second movable piece portion 70, and the continuous piece portion 76 enter into the opening 56 in the thickness direction. The continuous piece portion 76 that has entered into the opening 56 (specifically, the first opening 56A) is arranged in a state of being adjacent to the back surface portion 54 along the back surface portion 54.

[0075] Note that the ruled lines L26 to L31 are along the X direction and intersect (specifically, are orthogonal) with the steps of the paper forming the blank 90 for the holder. Thereby, the strength (bending strength) when bending each of the first movable portion 68, the second movable portion 70, the third movable piece portion 72, the continuous piece portion 76, and the insertion portion 78 along each ruled line can be increased.

[0076] [Regarding the fitting between the box body and the opening] Next, the procedure for fitting the box body 20 into the opening 56 of the box holder 50 and the states of the box body 20 and the box holder 50 after fitting will be described with reference to FIGS. 11 to 13. Note that FIGS. 12 and 13 are cross-sectional views showing the box body 20 fitted into the opening 56 and its peripheral portion. Here, the left half in FIG. 13 shows the I-I cross-section in FIG. 2, and the right half shows the J-J cross-section in FIG. 3. Further, FIG. 12 shows a cross-section when cut along the K-K plane in FIG. 11.

[0077] As described above, the box body 20 fits into the opening 56 in the thickness direction (the third direction) of the box holder 50 by entering the opening 56 of the box holder 50, more specifically, the first opening 56A. At this time, the box body 20 fits into the opening 56 such that the hole forming wall 26A faces the lower end side of the box holder 50.

[0078] Further, when fitting the box body 20 into the opening 56, as shown in FIG. 11, the insertion piece portion 32 of the box body 20 is inserted into the insertion hole 80 formed in the continuous piece portion 76 disposed in the opening 56. At this time, the insertion piece portion 32 is inserted into the insertion hole 80 downward in the vertical direction of the box holder 50. Thereby, the box body 20 is favorably held by the box holder 50.

[0079] Also, the insertion piece portion 32 inserted into the insertion hole 80 enters the gap between the continuous piece portion 76 and the back surface portion 54 of the box holder 50 (hereinafter, the insertion gap D). Here, since the central portion in the width direction of the back surface portion 54 is curved in an arc shape so as to be away from the front surface portion 52, as shown in FIG. 12, among the above insertion gaps D, the central portion in the width direction bulges toward the back surface portion 54. Accordingly, since the insertion gap D is further expanded, it becomes easier for the insertion piece portion 32 to enter the insertion gap D. Further, among the above insertion gaps D, both end portions in the width direction are narrower than the central portion in the width direction. Therefore, the insertion piece portion 32 that has entered the insertion gap is sandwiched between the continuous piece portion 76 and the back surface portion 54, and due to the so-called jamming effect, it becomes difficult for the insertion piece portion 32 to come out of the insertion hole 80.

[0080] 13, in the fitted state in which the box main body 20 is fitted into the opening 56, the movable piece 66 abuts against the side surface of the box main body 20. Specifically, each first movable piece 68 abuts against a widthwise end of the side surface of the box main body 20 on which the confirmation hole 28 is formed (i.e., the outer surface of the hole-forming wall 26A). Furthermore, the third movable piece 72 abuts against the surface formed by the outer surface of the side wall 26 of the box main body 20 located opposite the hole-forming wall 26A in the up-and-down direction. Here, the third movable piece 72 abuts against the outer surface of the side wall 26 located opposite the hole-forming wall 26A from one end to the other end in the widthwise direction of the side wall 26.

[0081] In addition, in the fitted state, the continuous piece 76 arranged in the opening 56 is arranged along the back surface 54 at the innermost part of the opening 56 in the thickness direction, and abuts against the bottom surface of the box main body 20 fitted into the opening 56 (i.e., the lower surface of the bottom wall 24). To explain in more detail, the surface of the continuous piece 76 facing the opening 56 (i.e., the end surface on the front surface 52 side in the third direction) abuts against the bottom surface of the box main body 20. Here, the continuous piece 76 abuts against the bottom surface of the box main body 20 from one end to the other end in the width direction.

[0082] 13, in the fitted state, the insertion portion 78 extending from the third movable piece 72 can be inserted into the insertion hole 34 provided in the box main body 20. By inserting the insertion portion 78 into the insertion hole 34, the fitted state can be maintained even more stably. The insertion portion 78 is also provided with a protrusion 78c, and when the insertion portion 78 is inserted into the insertion hole 34, the protrusion 78c is positioned in a position in the width direction of the box holder 50 where it can engage with the edge of the insertion hole 34. This makes it difficult for the insertion portion 78 to come out of the insertion hole 34, and as a result, the fitted state can be maintained even more stably.

[0083] Furthermore, since the insertion portion 78 is difficult to remove from the insertion hole 34, it becomes difficult to remove the box body 20 from the box holder 50, thereby preventing the product S inside the box body 20 from being removed. If an attempt is made to remove the box body 20 from the box holder 50 in order to remove the product S inside the box body 20, the insertion portion 78 is difficult to remove from the insertion hole 34, so the box holder 50 will be torn along the line L26 or L31; in other words, the third movable piece 72 or the insertion portion 78 will be cut off. In this case, by looking at the box holder 50 with the third movable piece 72 or the insertion portion 78 cut off, it is easy to determine that the product S has been removed.

[0084] In the fitted state, the box body 20 is fitted into the first opening 56A of the openings 56. Meanwhile, a second opening 56B is adjacent to the first opening 56A below the first opening 56A. This second opening 56B remains open even in the fitted state, and the outer surface (side surface) of the hole-forming wall 26A of the box body 20 faces the second opening 56B. This allows the confirmation hole 28 formed in the hole-forming wall 26A to be exposed through the second opening 56B in the fitted state. As a result, it becomes easier to check the lot number of the product S by looking into the box body 20 through the confirmation hole 28. This effect is particularly effective when the box body 20 is made of an opaque material (i.e., a material with low light transmittance) such as paper.

[0085] [Variations] Although the packaging box of the present invention has been described above using one specific embodiment, the above embodiment is merely an example, and configuration examples (hereinafter, modified examples) of the packaging box different from the above-described embodiment are also possible. Below, several modified examples of the configuration of the packaging box of the present invention will be described. In each of the modified examples, the parts of the packaging box will be described using the same names and symbols as those given to parts corresponding to those parts in the above embodiment.

[0086] (First Modification) In the above embodiment, the third movable piece 72 stands up from the surface portion 52. Also, in the above embodiment, the insertion portion 78 extending from the tip of the third movable piece 72 is inserted into the insertion hole 34 formed in the portion of the box body 20 that protrudes outward from the opening 56 in the thickness direction. On the other hand, in the packaging box 10A according to the first modified example, as shown in FIG. 14 , the third movable piece 72 may be inserted into the opening 56, similar to the first movable piece 68 and the second movable piece 70. In this case, an insertion hole may be formed in the portion of the box body 20 that is inserted into the opening 56 in the thickness direction, for example, on a folding line adjacent to the bottom wall 24, and the insertion piece 78 extending from the tip of the third movable piece 72 may be inserted into the insertion hole. Alternatively, as shown in FIG. 14 , the insertion piece 78 may be inserted (inserted) into the gap between the bottom wall 24 of the box body 20 and the back surface 54 of the box holder 50. In this case, since there is a possibility that the box body 20 may fall off from the opening 56, it is preferable to fix the box body 20 to the box holder 50 using a fixing material such as tape. With the above-described configuration, in the first modified example, the box body 20 and the box holder 50 can be easily fitted together, and the state in which the box body 20 is held by the box holder 50 can be stabilized.

[0087] (Second Modification) In the above embodiment, the first movable piece 68, the second movable piece 70, and the continuous piece 76 continuous with them enter the opening 56 and abut against the portion of the surface of the box main body 20 that is located within the opening 56 (for example, the bottom and side surfaces of the box main body 20). On the other hand, in the packaging box 10B according to the second modification example, as shown in FIG. 15, the first movable piece portion 68 and the second movable piece portion 70 rise from the surface portion 52 in the same manner as the third movable piece portion 72, and may be arranged outside the opening 56 in the thickness direction. In this case, the continuous piece portion 76 may be arranged outside the opening 56 in the thickness direction together with the first movable piece portion 68 and the second movable piece portion 70, and may be bent with the boundary line with each movable piece portion as a base point and extend toward the side where the third movable piece portion 72 is located. In such a configuration, the continuous piece portion 76 may be inserted (inserted) into a slit-shaped insertion hole formed on a folding line adjacent to the top wall 22, for example, a portion of the box body 20 that is located outside the opening 56 in the thickness direction. Further, in the above configuration, since the lower side wall 26 of the box body 20 is covered by each movable piece portion 66 and the continuous piece portion 76, it is preferable to provide the confirmation hole 28 in the top wall 22 of the box body 20 as shown in FIG. 15. With the above-described configuration, in the second modification example, the fitting between the box body 20 and the box holder 50 can be easily performed, and the state in which the box body 20 is held by the box holder 50 can be stabilized.

[0088] (Third Modification Example) As an embodiment of the present invention, a form in which the above-described first modification example and second modification example are combined, that is, the third modification example shown in FIG. 16 is also conceivable. That is, in the packaging box 10C according to the third modification example, the third movable piece portion 72 enters the opening 56. In this case, an insertion hole 34 may be formed on a folding line adjacent to the bottom wall 24, for example, a portion of the box body 20 that enters the opening 56, and the insertion portion 78 extending from the tip of the third movable piece portion 72 may be inserted into the insertion hole 34. Alternatively, the insertion portion 78 may be inserted into a gap between the bottom wall 24 of the box body 20 and the back surface portion 54 of the box holder 50. With the above-described configuration, in the third modification example, the fitting between the box body 20 and the box holder 50 can be easily performed, and the state in which the box body 20 is held by the box holder 50 can be stabilized.

[0089] Also, in the packaging box 10C according to the third modification example, the first movable piece portion 68 and the second movable piece portion 70 rise from the surface portion 52 and are arranged outside the opening portion 56 in the thickness direction, and the continuous piece portion 76 is also arranged outside the opening portion 56 in the thickness direction. In this case, the continuous piece portion 76 may be bent with the boundary lines with the first movable piece portion 68 and the second movable piece portion 70 as the bases and extend toward the side where the third movable piece portion 72 is located. Further, the continuous piece portion 76 may be inserted into a slit (insertion hole) formed on a folding line adjacent to the top wall 22, for example, a portion of the box body 20 that is located outside the opening portion 56 in the thickness direction. Furthermore, in the above configuration, since the lower side wall 26 of the box body 20 is covered by each movable piece portion 66 and the continuous piece portion 76, it is preferable to provide a confirmation hole 28 in the top wall 22 of the box body 20 as shown in FIG. 16. With the above configuration, in the third modification example, the fitting between the box body 20 and the box holder 50 can be performed more easily, and the state in which the box body 20 is held by the box holder 50 can be made more stable.

Explanation of Signs

[0090] 10, 10A, 10B, 10C Packaging box 20 Box body 20A Box-shaped portion 22 Top wall 24 Bottom wall 26 Side wall 26A Hole-forming wall 28 Confirmation hole 30 Box blank 32 Insertion piece portion 34 Insertion hole 34a Parallel portion 34b Inclined portion 36 Box-side joint 38 First inner flap 40 Second inner flap 42 Insertion flap 50 Box holder 52 Surface portion 54 Back surface portion 56 Opening 56A First opening 56B Second opening The outer end of the lower end region of 56i The lower end region at the edge of 56j 58 Front side protrusion 60 Back side protrusion 62 Front side insertion part 62a Base end part 62b Adjacent part 62c Protrusion 64 Back side insertion hole 64a Parallel part 64b Inclined part 66 Movable piece part 68 First movable piece part 70 Second movable piece part 70a One side part 70b The other side part 72 Third movable piece part 74 Punching hole 76 Continuous piece part 78 Insertion part 78a Base end part 78b Adjacent part 78c Protrusion 80 Insertion hole 90 Blank for the holder 92 Joint part on the holder side D Insertion gap L1 to L12, L21 to L31 Grid lines (folding lines) L32 First cutting line L33 Second cutting line R Notch S Product (object to be stored)

Claims

1. A box body for storing an object to be stored, a box holder having an opening into which the box body can be fitted, and a movable piece portion extending from an edge of the opening and rotatable about a bending line provided on the edge, A packaging box, wherein in a state where the box body is fitted into the opening, the movable piece portion abuts against a side surface of the box body.

2. The packaging box according to claim 1, wherein the movable piece portion extends from an end region in a first direction of the edge, and in a state where the box body is fitted into the opening, abuts against a surface of the box body adjacent to the end region.

3. The box holder has an insertion portion extending from an end of the movable piece portion opposite to the edge, The packaging box according to claim 2, wherein the insertion portion can be inserted into an insertion hole provided in the box body or a gap provided between the box body and the box holder when the box body is fitted into the opening.

4. The insertion hole is a cut formed along a second direction intersecting the first direction in the box body, The insertion portion has a base end portion and a protruding portion protruding outward from an end of the base end portion in the second direction, The packaging box according to claim 3, wherein in a state where the insertion portion is inserted into the insertion hole, the protruding portion is disposed at a position where it can be locked to an edge portion of the insertion hole in the second direction.

5. The box body enters the opening and fits with the opening in a third direction intersecting both the first direction and the second direction, The box holder has a continuous piece portion continuous with the movable piece portion, The packaging box according to claim 4, wherein in a state where the box body is fitted into the opening, the continuous piece portion is bent with respect to the movable piece portion at a boundary line between the continuous piece portion and the movable piece portion, and engages with an end portion of the box body in the third direction.

6. The box holder has a front surface portion and a back surface portion facing each other in the third direction, The packaging box according to claim 5, wherein in a state where the box body is fitted into the opening, the continuous piece portion and the movable piece portion continuous with the continuous piece portion are disposed in the opening, and an end surface of the continuous piece portion on the front surface portion side in the third direction abuts against a bottom surface of the box body.

7. The box body has a box-shaped portion capable of storing the object to be stored and an insertion piece portion protruding outward from an outer edge of the box-shaped portion. The packaging box according to any one of claims 3 to 6, wherein the box holder is provided with insertion holes into which the insertion piece portions are inserted when the box body is fitted into the opening.

8. Among the end regions, with respect to both end portions in a second direction intersecting the first direction, an intermediate portion located between the both end portions is on the outer side in the first direction, The box holder includes, as the movable piece portion, a first movable piece portion that extends from each end portion in the second direction of the end region and is rotatable about the folding line on each of the end portions, The packaging box according to claim 7, further comprising: a second movable piece portion that extends from the intermediate portion of the end region and is rotatable about the folding line on the intermediate portion.

9. The packaging box according to claim 8, wherein the box holder has punching holes formed by punching out a sheet body constituting the box holder in a portion between the first movable piece portion and the second movable piece portion in the second direction.

10. The packaging box according to claim 8, wherein the box body further has a confirmation hole formed in a surface adjacent to the end region in the first direction in a state where the box body is fitted into the opening.

11. The packaging box according to claim 10, wherein the box body and the box holder are each constituted by folding a paper sheet body.

12. The box body enters into the opening and fits with the opening in a third direction intersecting both the first direction and the second direction, The box holder has a front surface portion and a back surface portion facing each other in the third direction, The front surface portion is arcuately curved such that a central portion of the front surface portion in the second direction is farther from the back surface portion than an end portion of the front surface portion, The packaging box according to claim 8, wherein the back surface portion is arcuately curved such that a central portion of the back surface portion in the second direction is farther from the front surface portion than an end portion of the back surface portion.

13. A blank group constituting the packaging box of claim 1, comprising: a box blank that is folded to form the box body; a holder blank that is folded to form the box holder; A blank group including the above.

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