JP3232589U - Packaging box and blank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box which can be folded flat even if it has a trapezoidal cross section. SOLUTION: In a packaging box, a pair of flat plates 10 and 11 and a pair of side plates 12 and 13 are alternately arranged side by side in a step direction and are continuously arranged via a first folding curve L1. The second flat plate is formed longer than the first flat plate by a predetermined dimension H in the step direction, and the second flat plate is parallel to the first folding curve at a position half of the predetermined dimension H from one end in the step direction. Folding line L5 is formed. A pair of side plates are erected in an inclined posture so as to be separated from each other from the first flat plate toward the second flat plate, so that the first flat plate and the second flat plate face each other with the accommodation space in between. By folding back one side of the second flat plate in the step direction along the folding line, the pair of side plates are in a pushed-down posture, and the pair of flat plates are folded so as to overlap each other. [Selection diagram] Fig. 4

Description

The present invention relates to packaging boxes and blanks.

There is known a square columnar prize box in which a pair of short sides and side plates are inclined from both ends of the top surface forming plate to form a trapezoidal shape when viewed from the side (Patent Document 1). In the prize box, a pair of long sides / side plates and a pair of short sides / side plates are erected on the bottom plate, and a pair of top surface forming plates connected to the upper ends of the pair of short sides / side plates are formed. It is completed by folding and inserting the insertion piece provided at the tip of the outer upper surface forming plate into the slit formed in the inner upper surface forming plate. By inclining the pair of short sides / side plates, the appearance of the prize box when the prize box is attached to the end of the corner cut carton product box will be improved, and the advertisements displayed on the top forming plate and the short sides / side plates will be improved. It becomes easier to see the information of.

Utility Model Registration No. 3158654

However, since the above-mentioned prize box is provided in an unfolded state and the prize is inserted before or during the assembly of the unfolded prize box, there is a problem that it takes a lot of time and cost to wrap the prize. It was. To solve such a problem, for example, if a pair of top surface forming plates are adhered to form a square tube having a trapezium cross section in advance and a prize is inserted into the square tube, the time and cost required for the packaging work can be reduced. It is possible to reduce it.

By the way, such prize boxes are often distributed in large quantities, and in consideration of transportation efficiency (transportation cost), it is preferable to fold and flatten the prize boxes to reduce the volume. However, the prize box having a square tube having a trapezium-shaped cross section cannot be folded geometrically flat, and is bulky, which causes another problem that the transportation cost increases.

In consideration of the above circumstances, the present invention provides a packaging box and a blank that can be folded flat even if they have a trapezium and trapezium cross section.

The present invention is a packaging box in which a pair of flat plates and a pair of side plates are alternately arranged side by side in the first direction and are continuously arranged via a folding curve, and the pair of the flat plates is the first flat plate. The second flat plate is formed to be longer than the first flat plate by a predetermined dimension (H) in the first direction, and the second flat plate is formed from one end or the other end in the first direction. A folding line parallel to the folding curve is formed at a position half of a predetermined dimension, and the pair of the side plates are bent by the folding curve with respect to the pair of the flat plates, and the first direction of the first flat plate is formed. The first flat plate and the second flat plate sandwich an article accommodating space by being erected in an inclined posture so as to be separated from each other from both ends of the second flat plate toward both ends in the first direction of the second flat plate. In the usage mode facing each other, one side or the other side in the first direction of the second flat plate is folded back along the folding line, so that the pair of the side plates are pushed down and the pair of the flat plates are pushed down. It becomes an overlapping folding form.

In this case, in the above-mentioned usage mode, the pair of the side plates are oriented in the vertical direction, the second flat plate is attached to the side surface of a separate product case, and the first flat plate and at least the upper side plate are attached to each other. The surface may be a presentation surface for presenting information.

In this case, a pair of end plates, which are connected to both ends of the first flat plate in the second direction orthogonal to the first direction and close both end faces of the accommodation space in the second direction, and a pair of end plates. A pair of laminated pieces connected to the tip in the second direction and laminated on the surface of the second flat plate, and a pair of laminated pieces connected to the tip in the second direction of the laminated piece and pierced in the second flat plate. A pair of insertion pieces, which are inserted into the pair of insertion holes provided and have a posture along the back surface of the second flat plate, may be further provided.

In this case, one of the insertion pieces in the second direction is inserted into the insertion hole, pushed by the article inserted into the accommodation space from the other in the second direction, and folded back in one of the second directions. , May be sandwiched between the second flat plate and the article.

In this case, an opening line is extended from one of the insertion holes in the second direction toward the outside in the second direction on the second flat plate, and the insertion piece in the second direction is the second. When one of the laminated pieces in the second direction is raised while being sandwiched between the two flat plates and the article, a part of the second flat plate may be cut along the opening line.

In this case, at least one of the pair of end plates may be provided with a window portion that exposes a part of the article housed in the storage space.

The blank of the present invention forms the packaging box described in any of the above.

The present invention is a blank forming the packaging box according to any one of claims 3 to 6, wherein one of the side plates, the first flat plate, the other side plate, and the second flat plate is a blank. In this order, one of the first directions is arranged side by side from one side to the other, and at the other end of the second flat plate in the first direction, a joint piece fixed to one of the side plates is continuously provided. One end of the end plate in the first direction is a straight side parallel to the folding curve, and the other end of each end plate in the first direction is along the side plate adjacent to the end plate in the state of use. The inclined sides are inclined as described above, and both ends of the second flat plate in the second direction are engaged with the straight sides of the pair of end plates that block both end faces of the accommodation space in the second direction. A pair of positioning protrusions for positioning the pair of end plates are provided so as to project.

According to the present invention, even if the packaging box has a trapezium and trapezium cross section, it can be folded flat.

It is a perspective view which shows the state which uses the packaging box which concerns on one Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on one Embodiment of this invention. It is a left side view which shows the packaging box which concerns on one Embodiment of this invention. It is a right side view which shows the packaging box which concerns on one Embodiment of this invention. It is a top view which shows the blank of the packaging box which concerns on one Embodiment of this invention. It is a perspective view which shows the front side of the packaging box (folding form) which concerns on one Embodiment of this invention. It is a perspective view which shows the back side of the packaging box (folding form) which concerns on one Embodiment of this invention. It is a perspective view which shows the process of inserting an article into the packaging box (usage form) which concerns on one Embodiment of this invention. It is sectional drawing explaining the process of inserting an article into the packaging box (usage form) which concerns on one Embodiment of this invention. It is sectional drawing explaining the state which inserted the article into the packaging box (usage form) which concerns on one Embodiment of this invention. It is a perspective view which shows the back side of the packaging box (usage form) which concerns on one Embodiment of this invention. It is sectional drawing which shows the packaging box (usage form) which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Fr, Rr, L, R, U, and D shown in the drawings indicate front, rear, left, right, top, and bottom. The front-back direction, the left-right direction (second direction), and the up-down direction (first direction) are orthogonal to each other. Although terms indicating directions and positions are used in the present specification, these terms are used for convenience of explanation and do not limit the technical scope of the present invention. In addition, the terms indicating the direction and position are based on the direction and position when the packaging box is used.

The packaging box 1 and the product case 90 will be described with reference to FIGS. 1, 2, 3A and 3B. FIG. 1 is a perspective view showing a state in which the packaging box 1 is used. FIG. 2 is a perspective view showing the packaging box 1. FIG. 3A is a left side view showing the packaging box 1, and FIG. 3B is a right side view showing the packaging box 1.

The packaging box 1 is attached to the side surface 94A of the separate product case 90 (see FIG. 1). A plurality of product cases 90 to which the packaging box 1 is attached are stacked and displayed at a store or the like. The packaging box 1 has a prismatic (square tubular shape) usage form F1 having a trapezium-shaped cross section, and is formed so as to be able to accommodate the article M inside (see FIGS. 2, 3A and 3B). On the surface of the packaging box 1, for example, information such as an explanation of an article M or a product (not shown) housed in the product case 90, an advertisement, or the like is displayed. The article M housed in the packaging box 1 is, for example, a prize that is formed in a substantially rectangular parallelepiped shape and is presented together with the product case 90.

[Product case]
First, the product case 90 will be briefly described with reference to FIG. The product case 90 is a so-called wraparound type box that wraps a plurality of arranged products (for example, a beverage can) so as to wrap them. The product case 90 has a square tubular shape in which a pair of flat walls 91 and a pair of side walls 92 are alternately arranged in series. Two pairs of inner flaps 93 are connected to both ends of the pair of side wall 92s, and two pairs of outer flaps 94 are connected to both ends of the pair of flat walls 91. The inner flap 93 is bent, and the outer flap 94 is bent and bonded so as to overlap the inner flap 93. The product case 90 is in a posture in which a pair of flat walls 91 are oriented in the vertical direction, and a pair of upper and lower outer flaps 94 are abutted against each other to form a side surface 94A.

[Blank of packaging box]
Next, the blank 1A of the packaging box 1 will be described with reference to FIG. FIG. 4 is a plan view showing the blank 1A of the packaging box 1.

The packaging box 1 is formed by assembling the blank 1A. The blank 1A is formed by punching a sheet of paper corrugated cardboard sheet by punching or the like. The corrugated cardboard sheet is, for example, a double-sided corrugated cardboard sheet in which a front liner 9B and a back liner 9C (see also FIG. 6) are bonded to a corrugated cardboard 9A. Note that FIG. 2 shows the front liner 9B side. In the present specification, the direction parallel to the corrugated cardboard sheet 9A is referred to as the "step direction", and the direction orthogonal to the step direction is referred to as the "flow direction". “X” shown in the drawing indicates “step direction”, and “Y” indicates “flow direction”.

The blank 1A includes a first flat plate 10, a second flat plate 11, a pair of side plates 12 and 13, a joint piece 14, a pair of end plates 20, 21 and a pair of laminated pieces 22, 23. It includes a pair of insertion pieces 24 and 25 and two pairs of inner pieces 26 and 27. In this specification, for convenience of explanation, the description common to the first flat plate 10 and the second flat plate 11 is referred to as "(pair) flat plates 10, 11".

<Flat plate, side plate, joint piece>
One side plate 12, the first flat plate 10, the other side plate 13, the second flat plate 11, and the joint piece 14 are arranged side by side from one side in the step direction (first direction) toward the other in this order. The pair of flat plates 10 and 11 and the pair of side plates 12 and 13 are alternately arranged side by side in the step direction and are continuously arranged via the first folding curve L1. Each of the flat plates 10 and 11 is formed in a substantially rectangular shape having a flow direction (second direction) as a long side. Each of the side plates 12 and 13 is formed in a substantially rectangular shape that is shorter in the step direction and elongated in the flow direction than the flat plates 10 and 11. The pair of side plates 12 and 13 are formed to have substantially the same dimensions in the step direction. The joint piece 14 is connected to the other end of the second flat plate 11 via the first folding curve L1 and is formed in a substantially trapezoidal shape that narrows in the flow direction as the distance from the second flat plate 11 increases in the step direction. ing. The details will be described later, but the passage piece 14 is fixed to one side plate 12.

The surface (front liner 9B) of the first flat plate 10 and the pair of side plates 12 and 13 is a presentation surface (not shown) for presenting information. Information such as an explanation of the article M (product) and an advertisement is printed on the presentation surface. The information such as advertisements is not limited to being printed on the presentation surface, and for example, information such as POP advertisements may be attached or written on the presentation surface (not shown).

<Details of the second flat plate>
The dimension of the second flat plate 11 in the step direction is the same as or slightly smaller than the height of the side surface 94A of the product case 90. Further, the second flat plate 11 is formed longer than the first flat plate 10 by a predetermined dimension H in the step direction. The predetermined dimension H is the difference (H = h2-h1) between the dimension h1 in the step direction of the first flat plate 10 and the dimension h2 in the step direction of the second flat plate 11. Looking at the packaging box 1 as the usage form F1 from the side (see FIGS. 3A and 3B), the second flat plate 11 is provided so as to face the first flat plate 10, and the first flat plate 10 is on the trapezium. The bottom is formed, the second flat plate 11 constitutes the lower bottom of the trapezium, and the pair of side plates 12 and 13 form the legs (inclined sides) of the trapezium. The predetermined dimension H may be freely changed as long as the difference is such that the packaging box 1 in the usage form F1 has a trapezoidal shape when viewed from the side surface.

(Folding line)
A folding line L5 parallel to the first folding curve L1 is formed on the second flat plate 11 at a position half of a predetermined dimension H from one end in the step direction. That is, the folding line L5 is formed at a position where the difference in dimensions of the pair of flat plates 10 and 11 in the step direction is halved. Note that "half" of the predetermined dimension H (difference) does not mean that it is strictly required to be half of the predetermined dimension H (difference), but means that a slight error of, for example, about several mm is allowed. ..

(Insert hole)
A pair of insertion holes 15 and 16 are bored on both sides of the second flat plate 11 in the flow direction. The pair of insertion holes 15 and 16 are formed at positions inside the second flat plate 11 from both ends in the flow direction. Each of the insertion holes 15 and 16 is formed in a substantially trapezoidal shape that widens in the step direction from the outside to the inside in the flow direction. A substantially semicircular finger hook hole 15A is bored in the insertion hole 15 on one side (left side) of the flow direction so as to bulge toward the center of the flow direction. A substantially semicircular recess 16A is formed in the insertion hole 16 on the other side (right side) of the flow direction so as to be recessed toward the center of the flow direction. The recess 16A is formed sufficiently smaller than the finger hook hole 15A.

(Opening line)
A pair of opening lines 17 extend from one insertion hole 15 in the flow direction toward the outside in the flow direction on the second flat plate 11. The pair of opening lines 17 are perforations with a plurality of cuts at intervals, and are formed from both ends of the insertion hole 15 in parallel with the flow direction. The pair of opening wires 17 are formed to cut (divide) a part of the second flat plate 11 sandwiched between them. The opening line 17 is not limited to the perforation line, and may be any line such as a zipper or a half-cut line that can cut the corrugated cardboard sheet.

(Positioning convex part)
A pair of positioning protrusions 18 are provided at both ends of the second flat plate 11 in the flow direction. The pair of positioning protrusions 18 are substantially trapezoidal protrusions and are provided at positions close to the joint piece 14.

(Kakeya)
A substantially U-shaped (U-shaped) cut line 19A is cut in the central region of the second flat plate 11 so as to connect both ends of the Kakeya fold line L6 extending in the flow direction, and the Kakeya fold line L6 and the cut line 19A are formed. The engagement piece 19 is divided in the area surrounded by. The engagement piece 19 is formed in a substantially quadrangular shape, and is connected to the second flat plate 11 via the engagement folding line L6. One corner of the engagement piece 19 is cut diagonally, and a substantially triangular finger insertion hole 19B is opened. The finger insertion hole 19B may be omitted.

<End plate>
The pair of end plates 20 and 21 are connected to both ends of the first flat plate 10 in the flow direction via the second folding curve L2. The pair of end plates 20 and 21 constitute the left and right side surfaces of the packaging box 1 according to the usage mode F1 (see FIGS. 3A and 3B). Each of the end plates 20 and 21 is formed in an irregular trapezoidal shape that widens in the step direction as the distance from the first flat plate 10 increases in the flow direction. Specifically, one end (lower end in FIG. 4) of each of the end plates 20 and 21 in the step direction is a straight side E1 parallel to the first folding curve L1. The other end (upper end in FIG. 4) of each of the end plates 20 and 21 in the step direction is an inclined side E2 inclined along the adjacent side plates 13 in the state of being used as F1 (FIGS. 3A and 3A). See also FIG. 3B). The dimension of the tip of each of the end plates 20 and 21 in the step direction is substantially the same as the length from the other end (upper end in FIG. 4) of the second flat plate 11 in the step direction to the folding line L5.

<Laminated piece>
The pair of laminated pieces 22 and 23 are connected to the tips of the pair of end plates 20 and 21 in the flow direction via the third folding curve L3. Each of the laminated pieces 22 and 23 is formed in a substantially quadrangular shape that can be erected between the end of the second flat plate 11 and the insertion holes 15 and 16.

A window portion W is bored along the third folding curve L3 on the other end plate 21 in the flow direction (to the right). To be precise, the window portion W slightly exceeds the third folding curve L3 and also opens to the laminated piece 23. The window portion W is formed to expose a part of the article M housed in the storage space S of the packaging box 1 (see also FIG. 2).

<Insert piece>
The pair of insertion pieces 24 and 25 are connected to the tips of the pair of laminated pieces 22 and 23. Specifically, the pair of insertion pieces 24 and 25 are continuously provided at positions where the pair of laminated pieces 22 and 23 bite into the proximal end side from the cutting edge. Each of the insertion pieces 24 and 25 is formed in a substantially fan shape with the tip curved in an arc shape. One (left) insertion piece 24 in the flow direction is connected to the laminated piece 22 via the folding line L7, and the other (right) insertion piece 25 in the flow direction is laminated via the mountain fold line L8. It is connected to one piece 23.

<Inner piece>
The two pairs of inner pieces 26 and 27 are connected to both ends of the pair of side plates 12 and 13 in the flow direction via the fourth folding curve L4. Each of the inner pieces 26 and 27 is formed in a substantially trapezoidal shape in which the width becomes narrower in the step direction as the distance from the side plates 12 and 13 increases in the flow direction. Specifically, each inner piece 26 located on one side in the step direction (lower in FIG. 4) is formed in an irregular trapezoidal shape having legs parallel to the straight side E1 of the end plates 20 and 21. Each inner piece 27 located on the other side in the step direction (upper in FIG. 4) is formed in a substantially trapezoidal shape having legs parallel to the inclined sides E2 of the end plates 20 and 21.

The first fold curve L1 (excluding the boundary of the passage piece 14), one (left) second fold curve L2, third fold curve L3, fourth fold curve L4, cross fold line L6 and mountain fold line. Each of L8 is a general-purpose ruled line obtained by crushing a corrugated cardboard sheet from the back liner 9C side in the thickness direction. A cut is made in the third folding curve L3 which is the boundary of the laminated piece 23. Further, the first folding curve L1 which is the boundary of the passage piece 14, the other (right) second folding curve L2, the folding line L5, and the folding line L7 each have a plurality of cuts on the general-purpose ruled line. It is a lead ruled line. The general-purpose ruled line and the lead ruled line have a function of bending (normally folding) the corrugated cardboard sheet so that the back liner 9C faces inward. The above-mentioned folding curve and the like are not limited to general-purpose ruled lines and lead ruled lines, and may be any structure such as perforations for bending a corrugated cardboard sheet in a desired direction.

[Manufacturing of packaging box]
Next, the manufacturing process of the packaging box 1 will be briefly described with reference to FIGS. 5 and 6. FIG. 5 is a perspective view showing the front side of the packaging box 1 (folded form F2). FIG. 6 is a perspective view showing the back side of the packaging box 1 (folded form F2).

The packaging box 1 is mass-produced by an automatic box making machine (not shown). A plurality of blanks 1A are set in the automatic box making machine, and the automatic box making machine manufactures the packaging box 1 by bending or adhering the blanks 1A in an appropriate place. The automatic box making machine is provided with an arm (not shown) for hooking each part of the blank 1A and bending it at an appropriate position.

In the automatic box making machine, the second flat plate 11 is folded back along the folding line L5, and the adhesive is applied to the front liner 9B (or the back liner 9C of one side plate 12) of the joint piece 14. Further, the automatic box making machine folds one side plate 12 along the first folding curve L1 and adheres it to the joint piece 14.

Here, since the folding line L5 is formed at a position deviated by half of a predetermined dimension H from one end of the second flat plate 11 in the step direction as described above, the second flat plate 11 is folded back at the folding line L5. Then, the first flat plate 10 is elongated by half the predetermined dimension H, and the second flat plate 11 is shortened by half the predetermined dimension H. That is, the difference in dimensions (predetermined dimension H) of the pair of flat plates 10 and 11 in the step direction is evenly distributed to the pair of flat plates 10 and 11. The total length in the step direction of the second flat plate 11 excluding the portion folded back by the folding line L5 and the one side plate 12 is the length of the portion folded back by the folding line L5 and the other side plate 13 and the first. The length in the step direction including the flat plate 10 of the above is substantially the same. Therefore, when one side of the second flat plate 11 in the step direction is folded back along the folding line L5, the pair of side plates 12 and 13 are in a pushed-down posture, and the pair of flat plates 10 and 11 are overlapped with each other. It becomes F2.

As described above, the flatly folded packaging box 1 is completed.

Here, if one end of the end plates 20 and 21 in the step direction (first direction) is inclined in the same manner as the inclined side E2 instead of the straight side E1, if one side plate 12 is folded back, the end plate One end of 20 and 21 (temporarily inclined portion) protrudes relatively in one direction in the step direction. Therefore, when the arm of the automatic box making machine folds back one side plate 12, it may interfere with the relatively protruding end plates 20 and 21, and one side plate 12 may not be folded back properly. In that respect, in the blank 1A of the packaging box 1 according to the present embodiment, since one end of each of the end plates 20 and 21 in the step direction is a straight side E1, even if one side plate 12 is folded back, the end plate 20 , 21 one end does not protrude relatively (see FIGS. 5 and 6). As a result, one side plate 12 can be properly folded back by the automatic box making machine. As a result, the packaging box 1 can be mass-produced using an automatic box making machine.

[Assembly of packaging box]
Next, the assembly work of the packaging box 1 will be described with reference to FIGS. 2, 3A, 3B, and 7 to 10. FIG. 7 is a perspective view showing a process of inserting the article M into the packaging box 1. FIG. 8A is a cross-sectional view illustrating a process of inserting the article M into the packaging box 1. FIG. 8B is a cross-sectional view illustrating a state in which the article M is inserted into the packaging box 1. FIG. 9 is a perspective view showing the back side of the packaging box 1 (usage form F1). FIG. 10 is a cross-sectional view showing the packaging box 1 (usage form F1).

The packaging box 1 is, for example, manually assembled by an operator. The worker sets the packaging box 1 in the folded form F2 into the used form F1. Specifically, the operator raises a pair of side plates 12 and 13 of the packaging box 1 in the folded form F2 (see FIGS. 2 and 7). Then, the pair of side plates 12 and 13 are bent with respect to the pair of flat plates 10 and 11 along the first folding curve L1 from both ends of the first flat plate 10 in the step direction to both ends of the second flat plate 11 in the step direction. It is erected (erected) in an inclined posture so as to be separated from each other. Further, one side of the second flat plate 11 folded back by the folding line L5 in the step direction is returned so as to form the same plane as the other portion of the second flat plate 11 (see FIG. 7). When the pair of side plates 12 and 13 are erected in an inclined posture, the first flat plate 10 and the second flat plate 11 are opposed to each other with the storage space S of the article M in between.

Next, the operator folds the left inner pieces 26 and 27 forward along the fourth folding curve L4 and closes a part of the left end surface of the accommodation space S (see FIG. 3A). Subsequently, as shown in FIGS. 7 and 8A, the operator folds the end plate 20 forward along the second folding curve L2 and the laminated piece 22 forward along the third folding curve L3. Insert the insert piece 24 into the insertion hole 15 while folding it forward along the folding line L7. The end plate 20 engages the straight side E1 with the positioning convex portion 18 of the second flat plate 11, and closes the left end surface of the accommodation space S while being positioned (see FIG. 3A). The laminated piece 22 is laminated on the left surface of the second flat plate 11 (see FIG. 7). Specifically, the laminated piece 22 overlaps the second flat plate 11 so as to straddle the folding line L5. Since the end plate 20 is positioned by the positioning convex portion 18 and the laminated piece 22 holds the folding line L5, the pair of flat plates 10 and 11 and the pair of side plates 12 and 13 are held in a trapezium cross section. The end plate 20 overlaps the tip end side of the inner piece 26, and the base end side of the inner piece 26 is exposed (see FIG. 3A).

Next, the operator inserts the article M from the right end surface (opening surface) of the accommodation space S into the inside of the accommodation space S (see FIGS. 7 and 8A). As the insertion of the article M progresses, as shown in FIG. 8B, the left (one in the second direction) insertion piece 24 inserted into the insertion hole 15 is accommodated from the right (the other in the second direction). It is pushed by the article M inserted in the space S and folded back to the left. When the insertion of the article M into the accommodation space S is completed, the insertion piece 24 is in a posture along the back surface of the second flat plate 11 and is sandwiched between the second flat plate 11 and the article M and inserted. It becomes impossible to pull out from the hole 15.

Next, the operator folds the right inner pieces 26 and 27 forward along the fourth fold curve L4 (see FIG. 3B), folds the end plate 21 forward along the second fold curve L2, and stacks them. The piece 23 is normally folded along the third folding curve L3, and the insertion piece 25 is normally folded along the mountain fold line L8 (see FIGS. 9 and 10). The end plate 21 engages the straight side E1 with the positioning convex portion 18 and closes the right end surface of the accommodation space S while being positioned (see FIG. 3B). The laminated piece 23 is laminated on the right surface of the second flat plate 11 so as to straddle the folding line L5. The insertion piece 25 folded by the mountain fold line L8 is inserted into the insertion hole 16 while being returned so as to form the same plane as the laminated piece 23. The insertion piece 25 is inserted between the second flat plate 11 and the article M in a posture along the back surface of the second flat plate 11 (see FIG. 10). The end plate 21 overlaps the tip end side of the inner piece 26, and the base end side of the inner piece 26 is exposed (see FIG. 3B).

As described above, the packaging box 1 having a trapezium-shaped cross section and forming a prismatic shape (square cylinder shape) is completed (see also FIG. 2). Information on the article M, such as a barcode, a serial number, and an expiration date, is displayed on the right end surface of the article M, and these information are exposed from the window portion W of the end plate 21.

[Installation of packaging box]
Next, the worker attaches the packaging box 1 containing the article M to the side surface 94A of the product case 90.

As shown in FIG. 1, in the packaging box 1 according to the usage mode F1, the pair of side plates 12 and 13 are directed in the vertical direction, and the second flat plate 11 is attached to the side surface 94A of the product case 90. Specifically, the first flat plate 10 is the front surface, one side plate 12 is the bottom surface, and the other side plate 13 is the top surface. The operator cuts the engagement piece 19 of the second flat plate 11 along the cut line 19A and bends it outward along the engagement folding line L6 (see FIG. 9). The operator inserts the tip end portion of the engagement piece 19 into the gap between the abutting portions of the pair of outer flaps 94 of the product case 90, and hooks the engagement piece 19 on the lower outer flap 94. As a result, the packaging box 1 is temporarily fixed to the side surface 94A of the product case 90.

Next, the operator attaches a transparent adhesive tape (not shown) over the pair of upper and lower flat walls 91 of the product case 90 so as to cross the packaging box 1 in the vertical direction. As a result, the packaging box 1 is fixed to the side surface 94A of the product case 90. In this state, the pair of side plates 12 and 13 are inclined so as to approach each other from the side surface 94A toward the front.

The purchaser of the product case 90 (product) can separate the packaging box 1 from the product case 90 and easily take out the article M from the packaging box 1. Specifically, the purchaser hangs his / her finger on the crease (folding line L7) of the insertion piece 24 exposed in the finger hook hole 15A of the second flat plate 11 (see FIG. 9). When the purchaser raises the left laminated piece 22 while the left insertion piece 24 is sandwiched between the second flat plate 11 and the article M, a part of the second flat plate 11 is paired. It is cut along the opening line 17 (see FIGS. 4 and 6). As a result, the end plate 20 is opened, the left end surface of the accommodation space S is opened, and the purchaser can pull out the article M.

The packaging box 1 according to the present embodiment described above has a trapezium-shaped cross section in the usage mode F1. Further, in the second flat plate 11, the folding line L5 is formed at a position where the difference in dimensions of the pair of flat plates 10 and 11 in the step direction is evenly distributed. According to this configuration, when the folded form F2 is adopted, the length of the first flat plate 10 in the width direction (first direction) is increased by a part of the second flat plate 11 folded back by the folding line L5. You can make up for the shortfall. As a result, even if the packaging box 1 according to the usage form F1 has a trapezium cross section, it can be folded flat (see FIGS. 5 and 6).

Further, in the packaging box 1 according to the present embodiment, a presentation surface for presenting (displaying) information such as an advertisement is provided on the surface of the first flat plate 10 and the pair of side plates 12 and 13. Further, in a state where the packaging box 1 is fixed to the side surface 94A of the product case 90, the first flat plate 10 constitutes the front surface, and the pair of side plates 12 and 13 are inclined toward the front so as to approach each other. (See FIG. 1). According to this configuration, the customer can visually check the information such as the advertisement presented on the presentation surface from the front of the packaging box 1. As a result, the effectiveness of presenting information to customers can be enhanced, and a high appeal effect can be expected.

Further, in the packaging box 1 according to the present embodiment, the insertion pieces 24 and 25 inserted into the insertion holes 15 and 16 are in a posture along the back surface of the second flat plate 11 (see FIG. 10). According to this configuration, it is possible to prevent the tips of the insertion pieces 24 and 25 from interfering with the article M and damaging the article M. Further, since the insertion pieces 24 and 25 come into surface contact with the second flat plate 11, the insertion pieces 24 and 25 cannot be easily pulled out, and the accommodation space S can be maintained in a state of being closed by the end plates 20 and 21.

Further, in the packaging box 1 according to the present embodiment, the insertion piece 24 is folded back as the article M is inserted into the storage space S, and is sandwiched between the second flat plate 11 and the article M (FIG. FIG. 8B). According to this configuration, the insertion piece 24 can be made unpullable by the article M housed in the storage space S. As a result, the insertion (packaging) of the article M and the locking of the insertion piece 24 can be performed at the same time.

Further, according to the packaging box 1 according to the present embodiment, by raising the laminated piece 22, a part of the second flat plate 11 is cut, and the insertion piece 24 sandwiched between the second flat plate 11 and the article M is opened. be able to. As a result, the insertion piece 24 can be easily opened without being pulled out from the insertion hole 15.

Further, according to the packaging box 1 according to the present embodiment, information on the article M such as a barcode, a serial number, and an expiration date can be located in the window portion W. As a result, the information of the article M can be presented to the customer through the window portion W without opening the packaging box 1.

Further, in the packaging box 1 according to the present embodiment, a pair of positioning protrusions 18 projecting from both ends in the left-right direction (flow direction) of the second flat plate 11 closes both end surfaces of the accommodation space S. The pair of end plates 20 and 21 are positioned by engaging with the straight side E1 of the end plates 20 and 21 (see FIGS. 3A and 3B). According to this configuration, the end plates 20 and 21 are arranged at appropriate positions, and the accommodation space S can be appropriately closed. Thereby, the packaging box 1 having a trapezium and trapezium cross section can be easily assembled.

In the packaging box 1 according to the present embodiment, the folding line L5 is formed in one of the step directions of the second flat plate 11 (the side of the upper side plate 13), but the present invention is not limited to this. .. For example, the folding line L5 may be formed on the other side (the side of the lower side plate 12) in the step direction of the second flat plate 11 (not shown). In this case, the other side of the second flat plate 11 in the step direction is folded back along the folding line L5, so that the folding form F2 is obtained.

Further, in the packaging box 1 according to the present embodiment, the first flat plate 10 and the pair of side plates 12 and 13 are used as presentation surfaces, but the present invention is not limited to this. The surface of the first flat plate 10 and at least the upper side plate 13 may be the presentation surface. Further, in addition to the first flat plate 10 and the side plates 12 and 13, the end plates 20 and 21 and the laminated pieces 22 and 23 may be used as presentation surfaces.

Further, in the packaging box 1 according to the present embodiment, the insertion pieces 24 and 25 are sealed by being inserted into the insertion holes 15 and 16, but the present invention is not limited to this. For example, the insertion pieces 24 and 25 and the insertion holes 15 and 16 may be omitted, and the laminated pieces 22 and 23 may be fixed to the second flat plate 11 via an adhesive, an adhesive tape or the like (not shown). .. Further, in addition to the insertion pieces 24, 25 and the like, the laminated pieces 22 and 23 may be omitted, and the end plates 20 and 21 may be fixed to the second flat plate 11 via an adhesive tape or the like (not shown). .. When the laminated pieces 22, 23 and the like are omitted, the end plates 20 and 21 may be connected to the second flat plate 11 (not shown). Further, even if the stacking pieces 22 and 23 and the end plates 20 and 21 such as the insertion pieces 24 and 25 are omitted and the packaging box 1 is formed in a square tubular shape having a trapezium cross section with both ends of the accommodation space S open. Good. In this case, it is preferable to close both end faces of the accommodation space S with adhesive tape or the like so that the article M does not fall off (not shown). Further, the inner pieces 26 and 27 may be omitted (not shown).

Further, in the packaging box 1 according to the present embodiment, a pair of opening lines 17 is formed, but the present invention is not limited to this, and for example, the number of opening lines 17 may be one (not shown). Further, the opening line 17 is formed on one side in the flow direction (left side in FIG. 2), but is not limited to this, and may be formed on the other side in the flow direction (right side in FIG. 2) or in the flow direction. It may be formed on both sides (not shown). In this case, it is preferable to form the finger hook hole 15A also in the insertion hole 16. Further, the finger hook hole 15A and the recess 16A may be omitted (not shown).

Further, in the packaging box 1 according to the present embodiment, the pair of positioning protrusions 18 and the engagement piece 19 are formed on the second flat plate 11, but these may be omitted (not shown). Further, the window portion W is bored in the end plate 21, but the present invention is not limited to this, and the window portion W may be bored in at least one of the pair of end plates 20, 21. Further, the window portion W may be omitted (not shown).

Further, the packaging box 1 according to the present embodiment is attached to the side surface 94A of the product case 90 with a transparent adhesive tape, but the present invention is not limited to this. For example, the packaging box 1 may be attached to the side surface 94A of the product case 90 via an adhesive, double-sided tape, or the like (not shown). Further, the packaging box 1 may be attached to the outer surface of the side wall 92 (not shown).

Further, the packaging box 1 according to the present embodiment is formed of a double-sided corrugated cardboard sheet made of paper, but the present invention is not limited to this. The packaging box 1 may be made of single-sided corrugated cardboard, double-sided corrugated cardboard, double-sided double-sided corrugated cardboard, or the like, or may be made of thick paper, a resin plate (sheet), or the like. Further, the dimensions (width, depth, height) and shape of each part of the packaging box 1, the thickness of the corrugated cardboard sheet, the direction in which the inner shin 9A extends, and the like may be freely changed.

The description of the above embodiment shows one aspect of the packaging box and the blank according to the present invention, and the technical scope of the present invention is not limited to the above embodiment. The technical scope of the present invention is not limited to the above embodiment. The present invention may be variously modified, replaced, or modified without departing from the spirit of the technical idea, and the scope of the utility model registration claim includes all embodiments that can be included within the scope of the technical idea. ..

1 Packaging box 1A Blank 10 1st flat plate 11 2nd flat plate 12, 13 Side plate 14 Submission piece 15, 16 Insertion hole 17 Opening line 18 Positioning convex part 20, 21 End plate 22, 23 Laminated piece 24, 25 Difference Included piece 90 Product case 94A Side surface E1 Straight side E2 Inclined side F1 Usage form F2 Folding form H Predetermined dimensions L1 First folding curve L5 Folding line M Article S Storage space W Window

Claims (8)

A packaging box (1) in which a pair of flat plates (10, 11) and a pair of side plates (12, 13) are alternately arranged side by side in the first direction and are continuously arranged via a folding curve (L1). ,
The pair of flat plates
The first flat plate (10) and
It has a second flat plate (11) formed longer than the first flat plate by a predetermined dimension (H) in the first direction.
A folding line (L5) parallel to the folding curve is formed on the second flat plate at a position half of the predetermined dimension from one end or the other end in the first direction.
The pair of side plates are bent at the folding curve with respect to the pair of flat plates so as to be separated from each other from both ends of the first flat plate in the first direction toward both ends of the second flat plate in the first direction. By erection in an inclined posture, the first flat plate and the second flat plate are in a usage mode (F1) facing each other with the storage space (S) of the article (M) in between.
When one side or the other side of the second flat plate in the first direction is folded back along the folding line, the pair of the side plates are in a pushed-down posture, and the pair of the flat plates are overlapped in a folded form (F2). ) Is a packaging box. In the usage pattern, the pair of the side plates are oriented in the vertical direction, and the second flat plate is attached to the side surface (94A) of the separate product case (90).
The packaging box according to claim 1, wherein the surface of the first flat plate and at least the upper side plate serves as a presentation surface for presenting information. A pair of end plates (20, 21) that are connected to both ends of the first flat plate in the second direction orthogonal to the first direction and close both end faces of the accommodation space in the second direction.
A pair of laminated pieces (22, 23) connected to the tip of the pair of end plates in the second direction and laminated on the surface of the second flat plate.
A posture in which the pair of laminated pieces are connected to the tips in the second direction and inserted into a pair of insertion holes (15, 16) formed in the second flat plate and along the back surface of the second flat plate. The packaging box according to claim 1 or 2, further comprising a pair of insertion pieces (24, 25). One of the insertion pieces in the second direction is inserted into the insertion hole, pushed by the article inserted into the accommodation space from the other in the second direction, and folded back in one of the second directions. The packaging box according to claim 3, wherein the packaging box is sandwiched between the flat plate of 2 and the article. An opening wire (17) extends from one of the insertion holes in the second direction toward the outside in the second direction on the second flat plate.
When one of the laminated pieces in the second direction is raised in a state where one of the insertion pieces in the second direction is sandwiched between the second flat plate and the article, a part of the second flat plate is formed. The packaging box according to claim 4, wherein the box is cut along the opening line. Any one of claims 3 to 5, wherein at least one of the pair of end plates is provided with a window portion (W) for exposing a part of the article housed in the storage space. The packaging box according to item 1. A blank comprising forming the packaging box according to any one of claims 1 to 6. A blank (1A) forming the packaging box according to any one of claims 3 to 6.
One said side plate, the first flat plate, the other side plate, and the second flat plate are arranged side by side from one side in the first direction toward the other in this order.
At the other end of the second flat plate in the first direction, a joint piece (14) fixed to one of the side plates is continuously provided.
One end of each of the end plates in the first direction is a straight side (E1) parallel to the folding curve.
The other end of each of the end plates in the first direction is an inclined side (E2) inclined along the side plates that are close to each other in the state of use.
A pair of both ends of the second flat plate in the second direction engage with the straight sides of the pair of end plates that block both end faces of the accommodation space in the second direction to position the pair of end plates. A blank, characterized in that the positioning convex portion (18) of the above is projected.

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