JP2018016324A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box that can be easily and compactly disposed of while suppressing deformation in a use state.SOLUTION: A packing box 1 comprises: a peripheral wall part 4 having a front face part 5, a rear face part 6 and a pair of side face parts 7,8; a first end face part 10 closing an opening end part on one end side of the peripheral wall part 4; and a second end face part 20 closing an opening end part on the other side of the peripheral wall part 4. In a pair of the side face parts 7,8 of the peripheral wall part 4, concave or convex side face trigger parts 41,42 are provided for a part of the overall length in a third direction Z at the center part in a first direction X of each surface. In the second end face part 20, a concave or convex end face trigger part 60 is provided for a part of the overall length in a second direction Y at the center part in the first direction X on its surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging box that is discarded in a folded state after being opened and the contents taken out.

  As a kind of packaging box having a square cylindrical peripheral wall part composed of a front part, a rear part and a pair of side parts, and a pair of end face parts closing the opening end face of the peripheral wall part, a seal end carton, a tack end carton, etc. Are known.

  For example, each end surface portion of the seal end carton is a pair of side flaps that are continuous with the side surface portion, an inner lid that is continuous with either the front portion or the back portion, and an outer lid that is continuous with either the front portion or the back portion. The inner lid and the outer lid are sequentially stacked on the outer sides of the pair of side flaps, and the outer lid is bonded to the outer surface of the inner lid, thereby sealing the end surface portion.

  Further, each end surface portion of the tack end carton is composed of a pair of side flaps that are continuous with the side surface portion, and a lid that is continuous with either the front portion or the back portion, and the lid is overlapped on the outside of the pair of side flaps, The lid is closed by inserting the insertion piece provided at the tip of the lid into the inside of the peripheral wall portion. The insertion piece of each lid may be bonded to the peripheral wall portion, whereby the both end surface portions of the tack end carton are sealed.

  An opening cut line for opening may be provided on the upper end side of these packaging boxes. In this case, the packaging box can be easily opened by separating the lid from the front portion or the rear portion along the cut line. .

  Moreover, as disclosed in many documents including Patent Document 1, a similar cut line may be provided on the lower end side of the packaging box. In this type of packaging box, when the upper end side is already opened and the lid is further separated from the front portion or the rear portion along the cut line on the lower end side, the lids on both sides are opened.

  In this state, the connection between the front portion and the rear portion via the lid is released, and thereby the bending angle of the four corner portions of the peripheral wall portion is easily changed over an angle range of 0 ° to 180 °. It becomes possible. Therefore, the packaging box can be easily folded flat so that the bending angle of the pair of corner portions positioned on the diagonal line is 0 ° and the bending angle of the remaining pair of corner portions is 180 °. Therefore, the plurality of packaging boxes folded in this manner can be stacked to be compactly discarded as a whole.

JP2013-227036A

  However, the operation of opening the lids on both sides of the packaging box that has already been opened by cutting off the upper end side for the purpose of folding may be annoying to the user. In particular, it takes time and labor to open and dispose of a large number of packaging boxes per day in a dispensing pharmacy or the like, and there is a problem that an operator who repeatedly cuts out easily hurts his nails.

  In addition, in order to easily fold the packaging box with the lower end side lid closed, it may be possible to fold a folding fold in advance on the peripheral wall part or lower end side cover, In this case, even in an unopened use state, the packaging box is easily deformed so as to be bent along the folding fold. Therefore, when an external force is applied to the unopened packaging box, a load is easily applied to the contents due to the deformation of the packaging box, and for example, a problem such as breaking of the aluminum foil of the PTP sheet may occur.

  Then, this invention makes it a subject to provide the packaging box which can be discarded simply and compactly, suppressing the deformation | transformation in use condition.

In order to solve the above problems, the packaging box according to the present invention is:
A front wall portion and a back wall portion facing the first direction, and a peripheral wall portion having a pair of side surfaces facing the second direction perpendicular to the first direction;
A first end surface portion that closes an open end portion of the peripheral wall portion on one end side in a third direction perpendicular to the first direction and the second direction;
A second end surface portion that closes an open end portion of the peripheral wall portion on the other end side in the third direction, and a packaging box comprising:
In the central part of the first direction on each surface of the pair of side parts, a concave or convex side trigger part is provided on a part of the total length in the third direction,
A concave or convex end surface trigger portion is provided at a part of the entire length in the second direction at the center portion in the first direction on the surface of the second end surface portion.

  The “trigger part” in this specification means a part of the surface having the trigger part that causes the surface to be bent, and the “trigger part” is subjected to a process for making it easy to bend. Is done. As a specific example of the process for making it easy to bend, there is a process of forming a groove-like “ruled line” by embossing.

  According to this packaging box, since the side face trigger part and the end face trigger part are provided at the first direction center part of the side part and the first direction center part of the second end face part that are not bent in use, If the first end surface portion is left open, even when the second end surface portion remains closed, when the packaging box is crushed by the force from the first direction, the pair of side surface portions and the second end surface portion are It is easy to be in a state of being folded in half by being folded at the central part in each first direction, whereby the packaging box is easily crushed flatly as a whole.

  Therefore, compared with the case where the packaging box is folded after both the first end surface portion and the second end surface portion are opened as in the prior art, the labor and time for opening the second end surface portion can be saved, and the packaging box can be easily removed. It can be crushed flat. Therefore, when discarding a plurality of packaging boxes, these packaging boxes can be discarded compactly by superimposing a plurality of flattened packaging boxes while reducing the burden on the operator.

  Further, according to this packaging box, the side surface trigger portion is provided only at a part of the total length in the third direction in each side surface portion, and the end surface trigger is provided only at a part of the total length in the second direction at the second end surface portion. Since the portion is not provided, each side surface portion and the second end surface portion are not easily bent and deformed unless a force to be crushed from the first direction is applied to the packaging box. Therefore, the deformation | transformation of the packaging box in a use condition is suppressed and the contents can be protected effectively.

In the present invention,
The side trigger portion includes first and second side trigger portions that are spaced apart from each other in the third direction and formed to extend in the third direction, respectively.
On each surface of the pair of side surface portions, the first side surface trigger portion may be disposed on one side across the central portion in the third direction, and the second side surface trigger portion may be disposed on the other side.

  In this case, since the side surface trigger portion is not provided at the center portion in the third direction of each side surface portion, the bending deformation of the side surface portion in the use state is effectively suppressed, thereby protecting the contents. Can be achieved. Further, when the packaging box is crushed on the one side and the other side across the central portion in the third direction, the first and second side trigger portions are formed to extend in the third direction, respectively. In the central part in the first direction of the part, bending deformation is effectively promoted such that a corner part continuously formed in the third direction is formed, whereby the packaging box is easily flattened.

In this case,
A concave or convex bending suppression portion extending in the first direction may be provided at a portion between the first side surface trigger portion and the second side surface trigger portion on each surface of the pair of side surface portions. Moreover, the said bending suppression part may be provided in each of the one side and the other side which pinched | interposed the center part of the said 3rd direction in each surface of a pair of said side part.

  By providing each side surface portion with a bending suppression portion extending in the first direction, the bending deformation of the side surface portion when a load is input from the first direction in the use state is more effectively suppressed. Things can be protected more effectively.

In the present invention,
A cut line for opening the opening end portion of the peripheral wall portion may be provided only on the first end surface portion side of the first end surface portion and the second end surface portion.

  In this case, by cutting along the cut line, the packaging box can be easily opened on the first end face side, and since the same cut line is not provided on the second end face side, the user mistakenly at the time of opening. It is possible to prevent the second end surface portion from being opened, and after opening, it is easy for the user to recognize that the packaging box can be easily crushed flat even when the second end surface portion is closed. In addition, since the cuts penetrating through the wall portion of the packaging box can be reduced as compared with the case where the cut line is provided also on the second end surface portion side, the contents can be effectively protected.

In the present invention,
The end surface trigger portion extends linearly along the second direction from a portion between one end and the center in the second direction on a surface of the second end surface portion to a portion between the other end and the center. May be formed.

  In this case, since the end face trigger portions are not provided at both ends in the second direction of the second end face portion, the bending deformation of the second end face portion in the use state is effectively suppressed, thereby Protection can be effectively achieved. Moreover, when the packaging box is crushed by forming the end face trigger part so as to extend in the second direction through the second direction center part of the second end face part, the first direction center of the second end face part In the portion, bending deformation is newly promoted such that a corner portion continuous in the second direction is newly formed, and this facilitates crushing the packaging box into a flat shape.

In the present invention,
The end face trigger portion extends from the portion between the one end and the center in the second direction on the surface of the second end face portion so as to expand in a V shape toward the one end side in the second direction. And a second end surface trigger portion extending so as to expand in a V shape from the portion between the other end and the center in the second direction on the surface of the second end surface portion toward the other end side in the second direction You may have.

  In this case, since the end face trigger part is not provided in the center part and both ends of the second direction in the second end face part, the bending deformation of the second end face part in the use state is effectively suppressed. The contents can be effectively protected. In addition, the V-shaped first and second end surface trigger portions are formed so as to face each other in the first direction center portion of the second end surface portion, so that when the packaging box is crushed, the second end surface portion is It is effectively promoted to bend and deform in the central portion in the first direction, which facilitates crushing the packaging box into a flat shape.

In the present invention,
The second end surface portion includes an inner lid connected to an end portion in the third direction in either the front portion or the back portion, and an end in the third direction in either the front portion or the back portion. An outer lid connected to the part,
The outer lid is provided with the end face trigger portion,
A perforation cut or a straight half cut extending in the second direction may be formed in a portion of the inner lid that overlaps the end face trigger portion.

  In this case, when the packaging box is crushed, the outer lid of the second end surface portion is provided with the end surface trigger portion, whereby the bending deformation at the center portion in the first direction is promoted, and the second end surface portion The inner lid is effectively promoted to bend and deform along a perforated cut or a linear half cut at the center in the first direction. Therefore, it is possible to effectively promote the folding of the second end surface portion in which a corner portion continuous in the second direction is newly formed. Moreover, since the inner lid provided with the cut or half cut which tends to impair the appearance is covered with the outer lid in use, it is possible to prevent the appearance of the packaging box from being impaired.

In this case,
The inner lid may be bonded to the outer lid only at a portion closer to the base end side than the notch or the half cut in the first direction.

  In this case, after the pair of side surfaces and the inner lid and outer lid of the second end surface portion are folded and the packaging box is crushed as described above, the pair of side surfaces and the outer lid of the second end surface portion are When the inner lid of the second end surface portion is returned to the original flat state, only the base end side portion follows the outer lid from the cut or half cut, and the distal end side portion not bonded to the outer lid is , Easy to stand up from the outer lid. When trying to store the contents in the packaging box in this state, the contents interfere with the rising portion of the inner lid, so that it is easy to notice that the packaging box has been reused after being crushed once. Become. Therefore, when the reuse of the packaging box is not preferable, the reuse can be prevented.

In the present invention,
The first end surface portion and the second end surface portion each have a pair of side flaps that are continuous with the end portions in the third direction of the pair of side surface portions, and a lid that is overlapped on the outside of the pair of side flaps. ,
Each of the side flaps may be formed with a perforated cut or a linear half cut extending in the second direction at a central portion of the first end surface portion and the second end surface portion in the first direction. Good.

  In this case, by forming a perforated cut or a linear half cut at the center in the first direction of each side flap provided on the first end surface portion and the second end surface portion, each side flap is side-faced. It becomes easy to bend and deform together with the part. Moreover, since each side flap provided with the cut | disconnection or half cut which is easy to impair an external appearance is covered with a lid in use condition, it can prevent impairing the external appearance of a packaging box.

In this case,
In a portion of each surface of the pair of side surface portions adjacent to the boundary with the side flap of the second end surface portion, V extends from the center portion in the first direction toward the second end surface portion side in the third direction. A concave or convex bending promoting portion extending so as to expand in a letter shape may be provided.

  In addition, the “bending promotion part” in the present specification means a part on the surface having the bending promotion part, which has been subjected to a process for facilitating bending. As a specific example of the process for making it easy to bend, there is a process of forming a groove-like “ruled line” by embossing.

  As a result, when the entire side surface portion is bent and deformed at the central portion in the first direction, the portion adjacent to the boundary with the side flap of the second end surface portion on the side surface portion is inward by bending along the V-shaped bending promoting portion. As a result, the entire side flap can be urged to be folded inside the side surface portion. Therefore, it can suppress that the bending deformation of a side part is inhibited by a side flap, and, thereby, the whole packaging box can be crushed smoothly.

  ADVANTAGE OF THE INVENTION According to this invention, after use, a packaging box can be easily crushed flatly, without opening a 2nd end surface part, suppressing the deformation | transformation of the packaging box in use condition. Therefore, a plurality of packaging boxes can be discarded as a whole while reducing the burden on the operator.

It is a perspective view which shows the packaging box which concerns on 1st Embodiment. It is the perspective view which looked at the packaging box from another direction. It is a perspective view which shows the packaging box before sealing. It is a top view which shows the blank sheet which comprises the packaging box. It is the sectional view on the AA line of FIG. 4 which shows the cross-sectional shape of a part of the blank sheet. It is a perspective view which shows how to crush the packaging box after use. It is a perspective view which shows the same packaging box of the state crushed. It is the BB sectional drawing of FIG. 7 which shows the inside of the crushed packaging box. It is CC sectional view taken on the line of FIG. 7 which shows the inside of the crushed packaging box. It is sectional drawing similar to FIG. 9 which shows the inside of the packaging box of the state which was going to restore | restore to the shape before crushing. It is a perspective view similar to FIG. 2 which shows the packaging box which concerns on 2nd Embodiment. It is a perspective view similar to FIG. 3 which shows the packaging box which concerns on 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the following description of the embodiment, directions such as “up”, “down”, “left”, “right”, “front”, “back”, “height”, “lateral”, “front / rear”, etc. The term to show shall point out the direction at the time of seeing the packaging box of the assembled and sealed state from the front side except the case where there is special description.

  In addition, the terms “front-rear direction X”, “lateral direction Y”, and “height direction Z” used in the following description are respectively referred to as “first direction”, “second direction”, “ This corresponds to the “third direction”.

  Further, in the present specification, when the term “outside” or “inside” is simply used, these terms mean “outside” or “inside” of the packaging box.

[First Embodiment]
As shown in FIGS. 1 to 3, the packaging box 1 according to the first embodiment includes a rectangular tube-shaped peripheral wall portion 4 extending in the height direction Z and having openings at both ends, and an upper end of the peripheral wall portion 4. Four continuous flaps 11, 12, 13, and 14 and four flaps 21, 22, 23, and 24 connected to the lower end of the peripheral wall 4 are provided.

  The peripheral wall 4 is opposed to each other in the front part 5, the back part 6 facing the back side of the front part 5 in the front-rear direction X, and the front part 5 and the back part 6 in the lateral direction Y. 1 side surface portion 7 and second side surface portion 8. The front part 5 and the back part 6 are arranged in parallel to each other and have the same width in the lateral direction Y. The first side surface portion 7 and the second side surface portion 8 are arranged in parallel to each other and have the same width in the front-rear direction X. The width in the front-rear direction X of the first side surface portion 7 and the second side surface portion 8 is smaller than the width in the lateral direction Y of the front surface portion 5 and the back surface portion 6.

  Specifically, the upper flaps 11, 12, 13, and 14 are an inner lid 11 as a first flap that is continuous with the upper end of the front portion 5, an outer lid 12 as a second flap that is continuous with the upper end of the rear portion, The side flaps 13 are connected to the upper end of the side surface portion 7, and the side flaps 14 are connected to the upper end of the second side surface portion 8.

  The upper four flaps 11 to 14 are folded from the inside so as to overlap in the order of the pair of side flaps 13, 14, the inner lid 11, and the outer lid 12. The pair of side flaps 13 and 14 do not interfere with each other in the folded state, and a gap is generated between the front end portions of the side flaps 13 and 14. The inner lid 11 is folded without being fixed to the outside of the side flaps 13 and 14. The inner lid 11 has a trapezoidal shape that becomes slightly thinner toward the tip, and has a size that closes most of the upper opening of the peripheral wall 4. The outer lid 12 is folded from the side opposite to the inner lid 11 so as to close the upper end opening of the peripheral wall portion 4, is overlapped on the outer side of the inner lid 11, and is fixed by adhesion, for example. The outer lid 12 has a trapezoidal shape that becomes slightly thinner toward the tip, and has a size that closes most of the upper opening of the peripheral wall 4.

  The upper end opening of the peripheral wall portion 4 is completely closed by folding the flaps 11 to 14 of the peripheral wall portion 4, and the first end surface portion as the upper surface portion of the packaging box 1 by these flaps 11 to 14. 10 is configured. The first end surface portion 10 is sealed by bonding the inner lid 11 and the outer lid 12 together.

  Specifically, the lower flaps 21, 22, 23, and 24 are an inner lid 21 that is continuous with the lower end of the front portion 5, an outer lid 22 that is continuous with the lower end of the back surface portion 6, and a side that is continuous with the lower end of the first side surface portion 7. The side flaps 24 are connected to the flap 23 and the lower end of the second side surface portion 8.

  The configurations of the lower inner lid 21, outer lid 22, and the pair of side flaps 23, 24 are the same as the upper inner lid 11, outer lid 12, and the pair of side flaps 13, 14, respectively. The lower flaps 21 to 24 are folded from the inside so that the pair of side flaps 23 and 24, the inner lid 21, and the outer lid 22 overlap in this order. The inner lid 21 is folded without being fixed to the outside of the side flaps 23, 24. The inner lid 21 and the outer lid 22 are fixed to each other by adhesion, for example.

  By these four flaps 21 to 24, the lower end opening of the peripheral wall portion 4 is sealed in a completely closed state. These flaps 21 to 24 constitute a second end surface portion 20 as a bottom surface portion of the packaging box 1.

  As described above, the packaging box 1 is a sealed end carton in which the first and second end surface portions 10 and 20 are each sealed with four flaps. The packaging box 1 in a state where the first and second end face portions 10 and 20 are sealed has a substantially rectangular parallelepiped overall shape.

  The packaging box 1 is a paper carton that is assembled by folding a blank sheet 2 made of cardboard as shown in FIG. 4 is a plan view of the blank sheet 2 viewed from the outside of the respective parts 5, 6, 7, 8, 9, 11, 12, 13, 14, 21, 22, 23, 24 constituting the packaging box 1. FIG. is there.

  In the blank sheet 2 shown in FIG. 4, the fixing surface portion 9, the front surface portion 5, the first side surface portion 7, the back surface portion 6, and the second side surface portion 8 are concave folds extending in the height direction Z in order from the left side in FIG. They are connected in series via lines F1 to F4.

  An upper side flap 13 is connected to the upper side of the first side surface part 7 via a concave crease line F5 extending in the horizontal direction, and a concave crease line F6 extending in the horizontal direction is provided below the first side surface part 7. The lower side flaps 23 are connected to each other.

  An upper side flap 14 is connected to the upper side of the second side surface part 8 via a concave crease line F7 extending in the horizontal direction, and a concave crease line F8 extending in the horizontal direction is provided below the second side surface part 8. The lower side flaps 24 are connected to each other.

  The first and second side surface portions 7 and 8 are provided with side trigger portions 41 and 42, bending suppression portions 44 and 45, and a bending promotion portion 50, which will be described later, respectively. Each side flap 13, 14, 23, 24 is provided with cuts 64, 66 described later.

  An upper outer lid 12 is connected to the upper side of the back surface portion 6 via a concave fold line F9 extending in the horizontal direction, and a lower side of the back surface portion 6 is connected to a lower side via a concave fold line F10 extending in the horizontal direction. The outer lid 22 on the side is continuous. The lower outer lid 22 is provided with an end face trigger portion 60 described later.

  The upper inner lid 11 is connected to the upper side of the front part 5 via a concave crease line F11 extending in the horizontal direction, and the lower side of the front part 5 is connected to the lower side via a concave crease line F12 extending in the horizontal direction. The inner lid 21 on the side is continuous. A cut line 30 and a pressed part 5a, which will be described later, are provided on the upper edge of the front part 5. The lower inner lid 21 is provided with a cut 62 described later.

  5 is a cross-sectional view taken along line AA of FIG. 4 showing the cross-sectional shape of the crease line F4 and the first side trigger 41 described later. As shown in FIG. 5, the crease line F <b> 4 and the first side surface trigger portion 41 are formed in a concave shape when viewed from the outer surface of the blank sheet 2. Although not shown in FIG. 5, the other crease lines F1 to F3, F5 to F12, a second side trigger part 42, bending suppression parts 44 and 45, which will be described later, a bending promoting part 50, and an end face trigger part. 60 is also formed in the same concave shape. These concave portions 41, 42, 44, 45, 50, 60, F1 to F12 are configured by groove-like ruled lines formed by embossing.

  Then, the procedure which assembles the packaging box 1 using the blank sheet 2 shown in FIG. 4 is demonstrated.

  First, it is folded along a crease line F4 between the second side surface portion 8 and the back surface portion 6, and is folded along a crease line F2 between the first side surface portion 7 and the front surface portion 5. The inner surface of 8 and the outer surface of the fixed surface portion 9 are bonded. Thereby, the folded packaging box 1 is completed.

  Thereafter, when the four corners of the peripheral wall portion 4 along the crease lines F1 to F4 extending in the height direction Z are raised at substantially right angles, the first end surface portion 10 and the second end surface portion 20 are opened as shown in FIG. The packaging box 1 in a state is formed.

  Subsequently, the upper flaps 11 to 14 and the lower flaps 21 to 24 are folded as described above, and the outer lids 12 and 22 are bonded to the inner lids 11 and 21, respectively. The 1 end surface part 10 and the 2nd end surface part 20 are sealed, and the packaging box 1 of the sealing state shown in FIG. 1 is completed.

  As described above, since the packaging box 1 of this embodiment is a sealed end carton, when closing the first and second end surface portions 10 and 20 and closing the end surface of the tack end carton, the insertion flap is used. No insertion process is required. Therefore, the 1st and 2nd end surface parts 10 and 20 of the packaging box 1 can be closed easily and rapidly by an automatic packaging machine.

  The packaging box 1 assembled as described above is opened by breaking the front part 5 along the tear line 30 provided in the front part 5.

  The cut line 30 is composed of a plurality of cuts arranged in a perforation. The cut line 30 extends horizontally from the upper left end of the front portion 5 along the upper edge of the front portion 5 to the right in the horizontal direction Y, and from the upper right end of the front portion 5 along the upper edge of the front portion 5. A second straight portion 30b extending to the left in the direction Y, and a bulging portion that detours from the right end of the first straight portion 30a so as to bulge downward from the upper edge of the front portion 5 to the left end of the second straight portion 30b. 30c.

  Thereby, the substantially trapezoidal pressed portion 5a surrounded by the upper edge of the front portion 5 and the bulging portion 30c of the cutoff line 30 in the vicinity of the boundary with the inner lid 11 of the front portion 5 and in the central portion in the lateral direction Y. Is formed.

  However, the structure of the cutoff line 30 is not limited to the above-mentioned thing, A various change is possible. For example, the tear line 30 may be configured by a plurality of cuts arranged in a zipper shape.

  When the pressed part 5 a is pushed in from the outside by the finger of the person opening the packaging box 1, the pressed part 5 a is cut off from the front part 5 along the bulging part 30 c of the tear line 30. Further, when the pressed portion 5a separated from the front portion 5 is pulled upward together with the inner lid 11, the inner lid 11 is separated from the front portion 5 along the first and second straight portions 30a, 30b of the tear line 30. It is.

  As shown in FIG. 6, when the inner lid 11 bonded to the outer lid 12 is separated from the front portion 5 as described above, the outer lid 12 restrained by the front portion 5 is opened via the inner lid 11. (See FIG. 6). Thereby, the packaging box 1 will be in the open state in which the 1st end surface part 10 was open | released. In the opened state, the inner lid 11 and the pressed part 5a connected to the inner lid 11 are connected to the back surface part 6 via the outer cover 12.

  The opened packaging box 1 can be easily crushed flatly by an external force from the front-rear direction X even when the second end face portion 20 remains closed (see FIG. 7).

  Hereinafter, a configuration for facilitating crushing of the packaging box 1 in a flat shape will be described.

  As shown in FIGS. 1 to 3, side trigger parts 41, 42 are provided at the central part in the front-rear direction X on each surface of the first side face part 7 and the second side face part 8. The side trigger portions 41 and 42 are provided on a part of the entire length of each surface of the first side surface portion 7 and the second side surface portion 8 in the height direction Z.

  The side surface trigger parts 41 and 42 are configured by a first side surface trigger part 41 and a second side surface trigger part 42 that are arranged at intervals in the height direction Z. Each side surface trigger part 41 and 42 is comprised by the concave groove part extended in the height direction Z. As shown in FIG. In each of the first side trigger part 41 and the second side trigger part 42, the first side trigger part 41 is provided above the center in the height direction Z, and the second side trigger part 41 is below the center in the height direction Z. A side trigger part 42 is provided.

  The first side trigger part 41 and the second side trigger part 42 have substantially the same length. The distance between the first side trigger part 41 and the second side trigger part 42 in the height direction Z is shorter than the length of each side trigger part 41, 42. In the height direction Z, the distance between the upper ends of the first side surface portion 7 and the second side surface portion 8 and the upper end of the first side surface trigger portion 41, the lower ends of the first side surface portion 7 and the second side surface portion 8, and the second The distance from the lower end of the side trigger part 42 is shorter than the distance between the first side trigger part 41 and the second side trigger part 42.

  In each of the first side trigger part 41 and the second side trigger part 42, bending suppression parts 44 and 45 are provided at portions between the first side trigger parts 41 and 41 and the second side trigger parts 42 and 42, respectively. ing. The bending suppression portions 44 and 45 are configured by a first bending suppression portion 44 and a second bending suppression portion 45 that are spaced apart from each other in the height direction Z. Each of the bending suppressing portions 44 and 45 is configured by a concave groove extending in the front-rear direction X. The central portion in the length direction of the first bending suppression portion 44 is in contact with the lower end of the first side surface trigger portion 41, and the central portion in the length direction of the second bending suppression portion 45 is on the upper end of the second side surface trigger portion 42. It touches.

  The 1st bending suppression part 44 and the 2nd bending suppression part 45 have a substantially equal length. The lengths of the first and second bending suppressing portions 44 and 45 are shorter than half the widths of the first side surface portion 7 and the second side surface portion 8 in the front-rear direction X. The lengths of the first and second bending suppressing portions 44 and 45 are shorter than the distance between the first side surface trigger portion 41 and the second side surface trigger portion 42 in the height direction Z.

  Further, a bending promoting portion 50 is provided at each lower end portion of the first side surface portion 7 and the second side surface portion 8, that is, at a portion adjacent to the boundary with the side flaps 23, 24 of the second end surface portion 20. The bending promoting portion 50 is a concave shape extending so as to expand in a V shape from the center portion in the front-rear direction X of the first side surface portion 7 and the second side surface portion 8 toward the second end surface portion 20 side in the height direction Z. It consists of a groove.

  As shown in FIG. 3, the side flaps 13, 14 of the first end surface portion 10 have a height direction Z in a state where the side flaps 13, 14 are arranged in parallel to the first side surface portion 7 and the second side surface portion 8. A perforated cut 64 extending in the direction is formed. In FIG. 3, only the notch 64 of one side flap 13 is shown, but the same notch 64 is also formed in the other side flap 14. The notch 64 is disposed in the center portion in the front-rear direction X of the first end surface portion 10.

  Similar cuts 66 are also formed in the side flaps 23 and 24 of the second end surface portion 20. In FIG. 3, only the notch 66 of one side flap 23 is shown, but the same notch 66 is also formed in the other side flap 24.

  The notch 66 is formed in a perforated shape extending in the lateral direction Y in a state in which the second end surface portion 20 is closed, that is, in a state in which the side flaps 23 and 24 are disposed at right angles to the first and second side surface portions 7 and 8. Has been. The notch 66 is disposed in the center portion in the front-rear direction X of the second end surface portion 20.

  In addition, in each side flap 13, 14, 23, 24 of the 1st end surface part 10 and the 2nd end surface part 20, it may replace with the notches 64 and 66 and you may make it form a linear half cut.

  As shown in FIG. 2, an end surface trigger portion 60 is provided on the outer lid 22 of the second end surface portion 20. The end face trigger part 60 is configured by a concave groove part extending linearly along the lateral direction Y on the surface of the outer lid 22. The end face trigger unit 60 is disposed at the center of the outer lid 22 in the front-rear direction X. With respect to the lateral direction Y, the right end of the end surface trigger portion 60 is located between the right end and the center of the outer lid 22, and the left end of the end surface trigger portion 60 is located between the left end and the center of the outer lid 22. That is, the end surface trigger part 60 extends linearly from a portion between the one end portion and the central portion in the lateral direction Y of the outer lid 22 to a portion between the other end portion and the central portion.

  As shown in FIG. 3, in the inner lid 21 of the second end surface portion 20, a perforated cut 62 extending in the lateral direction Y is formed in a portion overlapping the end surface trigger portion 60 (see FIG. 2) of the outer lid 22. Has been. The notch 62 is disposed at the center portion in the front-rear direction X of the second end surface portion 20. The notch 62 is formed shorter than the end face trigger part 60. With respect to the lateral direction Y, the right end of the notch 62 is located closer to the center than the right end of the end face trigger portion 60, and the left end of the notch 26 is located closer to the center than the left end of the end face trigger portion 60.

  The inner lid 21 of the second end surface portion 20 is bonded to the outer lid 22 only at the base end side portion with respect to the notch 62, and the distal end side portion with respect to the notch 62 is not restrained by the outer lid 22.

  In the inner lid 21, a linear half cut may be formed instead of the cut 62.

  The packaging box 1 configured as described above is crushed as follows.

  As shown in FIGS. 6 and 7, in the embodiment of the present invention, the packaging box 1 that has been opened and used after the contents are taken out is compactly discarded by crushing as follows. Can do.

  Specifically, the packaging box 1 with the first end face portion 10 opened and the second end face portion 20 closed is placed in the front-rear direction X from the front portion 5 side or the back portion 6 side with the palm of the user, for example. To push the packaging box 1 so that the front surface portion 5 and the rear surface portion 6 come close to each other, and the pair of side surface portions 7 and 8 and the second end surface portion 20 are folded while projecting outward. Can be crushed.

  More specifically, when the packaging box 1 is crushed, the first side surface portion 7 and the second side surface portion 8 generally project outward in the lateral direction Y as shown in FIGS. 7 and 8, and It deform | transforms so that it may be folded in half along the 1st side surface trigger parts 41 and 41 and the 2nd side surface trigger parts 42 and 42 which extend in the height direction Z. Thereby, the corner parts 43 and 43 which continue in the height direction Z are newly formed in the center part of the front-back direction X of each side part 7 and 8. FIG. At this time, the front side portion and the back side portion in the front-rear direction X from the corner portions 43, 43 in the side surface portions 7, 8 are folded so that the inner surfaces thereof face each other.

  Further, as shown in FIG. 7, the upper side flaps 13 and 14 are generally folded outward in the lateral direction Y and folded in half along the perforated cuts 64 and 64 extending in the height direction Z. To be deformed. At this time, the front side portion and the back side portion of the side flaps 13 and 14 are folded so that the inner surfaces thereof face each other than the central portion in the front-rear direction X.

  On the other hand, as shown in FIGS. 7 to 9, the lower side flaps 23 and 24, together with the portions adjacent to the lower side of the V-shaped bending promoting portions 50 and 50 in the side surface portions 7 and 8, promote bending. Folded inside the packaging box 1 along the portions 50 and 50 and overlapped inside the portions adjacent to the upper side of the bending promoting portions 50 and 50 in the side surface portions 7 and 8.

  At this time, the lower side flaps 23 and 24 are folded in half along the perforated cuts 66 and 66 in half along the perforated cuts 66 while the tips thereof are displaced upward in the height direction Z. Accordingly, the front side portion and the back side portion of the side flaps 23 and 24 are folded so that the outer surfaces thereof face each other than the center portion in the front-rear direction X. The side flaps 23 and 24 folded in this way are sandwiched between the front side portion and the back side portion in the front-rear direction X with respect to the corner portions 43 in the corresponding side surface portions 7 and 8.

  As shown in FIGS. 7 and 9, the outer lid 22 of the second end surface portion 20 is folded in half along the end surface trigger portion 60 extending in the lateral direction Y and is generally in the height direction Z. Deforms to spread outward. The inner lid 21 of the second end surface portion 20 is folded in half along a perforated cut 62 extending in the lateral direction Y following the outer lid 22 bonded at the base end side portion thereof, and , It is deformed so as to spread outward in the height direction Z as a whole. At this time, the front side portion and the back side portion of the inner lid 21 in the front-rear direction X with respect to the notch 26 are folded so that the inner surfaces thereof face each other.

  As a result, a corner portion 63 that continues in the lateral direction Y is newly formed in the center portion of the second end surface portion 20 in the front-rear direction X.

  As described above, if only the first end surface portion 10 of the packaging box 1 is opened, the side trigger portions 41 and 42 described above are pressed by the front and rear direction X even when the second end surface portion 20 is closed. The packaging box 1 can be easily crushed by promoting the bending at the bending promoting portion 50 and the end face trigger portion 60.

  Therefore, compared with the case where the packaging box is folded after the both end surfaces are opened as in the prior art, it is possible to easily crush the packaging box into a flat shape, saving time and labor for opening the second end surface portion 20. Therefore, when discarding the plurality of packaging boxes 1, these packaging boxes 1 can be discarded in a compact manner by stacking the plurality of packaging boxes 1 crushed flat while reducing the burden on the operator.

  Moreover, as above-mentioned, a pair of side surface parts 7 and 8 and the 2nd end surface part 20 are folded in half in the state which protruded outside, respectively.

  If the side surface portions 7 and 8 and the second end surface portion 20 are folded so as to enter the inside of the peripheral wall portion 4, the folded side surface portions 7 and 8 and the second end surface portion 20 are formed between the front surface portion 5 and the back surface portion 6. Each corner portion between the side surface portions 7 and 8 and the front surface portion 5 and the back surface portion 6, and each corner portion between the second end surface portion 20 and the front surface portion 5 and the back surface portion 6. And the corner portions 43, 43, 63 newly formed by folding the side surface portions 7, 8 and the second end surface portion 20 are all sharp, so that the folded side surface portions 7 , 8 and the second end surface portion 20 are increased in restoring force to return to the original flat shape, and the distance between the front surface portion 5 and the back surface portion 6 is easily increased.

  On the other hand, according to the present embodiment, the pair of folded side surface portions 7 and 8 and the second end surface portion 20 are not interposed between the front surface portion 5 and the back surface portion 6, and each of the side surface portions 7 and 8. Each corner part between the front part 5 and the back part 6 and the bending angle of the corner part between the second end face part 20 and the front part 5 and the back part 6 are obtuse angles. The restoring force acting on the 7, 8 and the second end face part 20 is reduced, the distance between the front part 5 and the back part 6 is not easily expanded, and it is easy to maintain a flat state as a whole. Therefore, when a plurality of crushed packaging boxes 1 are overlapped, these packaging boxes 1 can be easily collected with a small overall thickness, and can be discarded in a more compact state.

  Moreover, since the side surface trigger parts 41 and 42 are not provided in the height direction Z center part of each side part 7 and 8, but the bending suppression parts 44, 44, 45, and 45 are provided instead, It is possible to suppress the bending of the side surface portions 7 and 8 in the use state (unopened state).

  Furthermore, since the end surface trigger part 60 is formed only in the center part of the 2nd end surface part 20 of the horizontal direction Y, the bending deformation of the 2nd end surface part 20 in use condition can be suppressed.

  As described above, unless the force for crushing from the front-rear direction X is applied to the packaging box 1, the side surface portions 7, 8 and the second end surface portion 20 are not easily bent and deformed, and thus are accommodated in the packaging box 1. Content can be effectively protected.

  In addition, the packaging box 1 is provided with the tear line 30 only on the first end face part 10 side of the front part 5 and is not provided with the tear line on the second end face part 20 side. It can suppress opening from the end surface part 20 side.

  As a result, if an attachment such as a package insert is enclosed on the first end face 10 side in the packaging box 1, opening from the side on which the attachment is enclosed can be urged. Therefore, at the time of opening from the first end face portion 10 side, by the attachment being interposed between the user's finger and the content, it is possible to suppress the pressing force applied by the user's finger directly to the content, There is an advantage that it becomes easy to take out only the attachment while maintaining the accommodation state of the contents.

  Furthermore, since the tear line 30 is provided only on the first end surface part 10 side, the inner space and the outer space of the packaging box 1 are made smaller than when provision lines are provided on both end face parts 10 and 20 side of the packaging box 1. It is possible to reduce the cut portions penetrating the wall portion of the packaging box 1 so as to communicate with each other, thereby effectively protecting the contents.

  Moreover, there is also an advantage that it is easy to recognize that the packaging box 1 can be folded without opening the second end surface portion 20 because the cut line is not provided on the second end surface portion 20 side.

  Furthermore, as described above, the inner lid 21 (see FIG. 3) of the second end surface portion 20 is bonded to the outer lid 22 only at the base end side portion from the notch 62 (see FIG. 9). Therefore, when the packaging box 1 is deformed so as to be crushed and folded as shown in FIG. 9 and then returned to the shape before being crushed as shown in FIG. The part 21a rises from the outer lid 22 and is easily caught by the side flaps 23 and 24.

  Therefore, the side flaps 23 and 24 are raised upward, the inner lid 21 and the outer lid 22 are likely to protrude downward, and it is difficult to completely return the second end surface portion 20 to the original flat shape. Therefore, when the contents are to be stored again in the packaging box 1 in such a state, the contents interfere with the second end surface portion 20 that is raised upward, and the packaging box 1 is once crushed again. It is easy for the user to notice that it was used. Therefore, in the case where reuse of the packaging box 1 is not preferable, it is possible to call attention for preventing reuse.

[Second Embodiment]
A packaging box 201 according to the second embodiment will be described with reference to FIG. Note that in the second embodiment, description of configurations and effects similar to those of the first embodiment will be omitted. In FIG. 11, elements having the same functions as those in the first embodiment are denoted by the same reference numerals.

  As shown in FIG. 11, the packaging box 201 according to the second embodiment is the packaging box 1 according to the first embodiment except for the configuration of the end face trigger part in the outer lid 22 of the second end face part 20 (see FIG. 11). 2).

  Also in the second embodiment, the end surface trigger portions 261 and 262 are provided at the center portion in the front-rear direction X on the surface of the outer lid 22 of the second end surface portion 20. Each of the end surface trigger units 261 and 262 includes a first end surface trigger unit 261 and a second end surface trigger unit 262 that are spaced apart from each other in the lateral direction Y. Each of the end surface trigger portions 261 and 262 is formed of a concave groove portion extending so as to expand in a V shape from the center in the front-rear direction X toward the outer side in the horizontal direction Y. The first end face trigger portion 261 is provided on the left side of the center in the horizontal direction Y, and the second end face trigger portion 262 is provided on the right side of the center in the horizontal direction Y. The 1st end surface trigger part 261 and the 2nd end surface trigger part 262 are arrange | positioned so that the vertex of each V character may oppose.

  With the above configuration, as in the first embodiment, a pair of pairings can be obtained by pressing the packaging box 201 with the first end face portion 10 opened and the second end face portion 20 closed from the front-rear direction X. The packaging box 201 can be crushed so that the side surface portions 7 and 8 and the second end surface portion 20 are folded while projecting outward.

  At this time, the outer lid 22 of the second end surface portion 20 is easily bent and deformed with the apex portions of the first and second end surface trigger portions 261 and 262 as base points. Specifically, the outer lid 22 is folded in half along an imaginary straight line extending in the lateral direction Y through the apexes of the first and second end face trigger portions 261 and 262, and as a whole in the height direction. It deforms so as to spread outside Z. Thereby, the 2nd end surface part 20 deform | transforms so that it may be folded in the aspect similar to 1st Embodiment.

  Therefore, also in 2nd Embodiment, the effect similar to 1st Embodiment can be acquired and the used packaging box 201 can be discarded compactly.

  Further, since the end surface trigger portions 261 and 262 of the second embodiment are formed only at two points in the horizontal direction Y, the end surface trigger portion 60 (see FIG. 2) is formed over a wide range in the horizontal direction Y. Compared to the first embodiment, it is easier to suppress the bending deformation of the second end surface portion 20 in the use state (unopened state). Therefore, according to the second embodiment, the contents can be more effectively protected in the usage state of the packaging box 201.

[Third Embodiment]
A packaging box 301 according to the third embodiment will be described with reference to FIG. Note that in the third embodiment, a description of the same configurations and effects as those of the first embodiment will be omitted. In FIG. 12, elements having the same functions as those in the first embodiment are denoted by the same reference numerals.

  As shown in FIG. 12, the packaging box 301 according to the third embodiment has the packaging box 1 according to the first embodiment (see FIG. 3) except for the configuration of the first end surface portion 310 and the second end surface portion 320. ). A packaging box 301 according to the third embodiment is a tack end carton in which a first end surface portion 310 and a second end surface portion 320 are each configured by three flaps described later.

  The first end surface portion 310 is different from the lid portion 311 connected to the upper edge of the front portion 5 via a crease line F11 extending in the horizontal direction Y and the tip end of the lid portion 311 via a crease line F13 extending in the horizontal direction Y. It is comprised by the insert piece 312 and a pair of side flaps 13 and 14 similar to 1st Embodiment.

  The second end surface portion 320 has a difference between a lid portion 321 connected to the lower edge of the front portion 5 via a crease line F12 extending in the horizontal direction Y and a tip end of the lid portion 321 via a crease line F14 extending in the horizontal direction Y. It is comprised by the insert piece 322 and a pair of side flaps 23 and 24 similar to 1st Embodiment.

  In the front-rear direction X center portion of the second end surface portion 320, the lid portion 321 is provided with an end surface trigger portion 60 similar to that of the first embodiment.

  The first end surface portion 310 and the second end surface portion 320 are closed by inserting the aforementioned insertion pieces 312 and 322 inside the peripheral wall portion 4. At this time, the respective insertion pieces 312 and 322 are bonded to the inner surface of the back surface portion 6 of the peripheral wall portion 4, whereby the both end surface portions 310 and 320 of the tack end carton 301 are sealed.

  Also in the packaging box 301 of the third embodiment configured as described above, the side face trigger parts 41 and 42 and the end face trigger part 60 similar to those of the first embodiment are provided, so the first end face part 310 is opened. And pressing the packaging box 301 with the second end surface portion 320 closed from the front-rear direction X, the pair of side surface portions 7 and 8 and the second end surface portion 320 project outward as in the first embodiment. While being folded, the packaging box 301 can be crushed. Thereby, the used packaging box 301 can be discarded compactly as in the first embodiment.

  In the third embodiment, the lid portion 321 of the second end surface portion 320 is provided with end surface trigger portions 261 and 262 similar to those of the second embodiment instead of the end surface trigger portion 60 similar to that of the first embodiment. Accordingly, the same effects as those of the second embodiment can be obtained.

  Moreover, in 3rd Embodiment, although the cover part 321 of the 2nd end surface part 320 is provided so that it may continue with the lower edge of the front part 5, it may be provided so that it may continue with the lower edge of the back part 6. .

  While the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments.

  In the above-described embodiment, the case where two side surface trigger portions are provided on the first side surface portion and the second side surface portion has been described, but one or three or more side surface trigger portions may be provided.

  Moreover, although the above-mentioned embodiment demonstrated the case where a bending suppression part was provided in a 1st side surface part and a 2nd side surface part, in this invention, a bending suppression part can also be abbreviate | omitted. In this case, in each side surface portion, the first side surface trigger portion and the second side surface trigger portion are arranged at a certain distance in the height direction Z, thereby effecting bending deformation of the side surface portion in the usage state of the packaging box. Therefore, it is possible to effectively protect the contents.

  As described above, according to the present invention, it is possible to provide a packaging box that can be disposed of easily and compactly while suppressing deformation in the state of use. Therefore, various articles including pharmaceuticals and foods are enclosed. There is a possibility of being suitably used for a packaging box.

1, 201, 301 Packaging box 2 Blank sheet 4 Peripheral wall portion 5 Front portion 5a Pressed portion 6 Back portion 7 First side portion 8 Second side portion 9 Fixed surface portion 10,310 First end surface portion 11 Inner lid 12 Outer lid 13 , 14 Side flap 20, 320 Second end surface portion 21 Inner lid 22 Outer lid 23, 24 Side flap 30 Cut line 41 First side trigger portion 42 Second side trigger portion 44, 45 Bend suppressing portion 50 Bend promoting portion 60 End face trigger portion 62, 64, 66 Cut 261 First end face trigger part 262 Second end face trigger part 311, 321 Lid part 312, 322 Insertion piece F1 to F14 Crease line X Back and forth direction (first direction)
Y Lateral direction (second direction)
Z height direction (3rd direction)

  The present invention relates to a packaging box that is discarded in a folded state after being opened and the contents taken out.

  As a kind of packaging box having a square cylindrical peripheral wall part composed of a front part, a rear part and a pair of side parts, and a pair of end face parts closing the opening end face of the peripheral wall part, a seal end carton, a tack end carton, etc. Are known.

  For example, each end surface portion of the seal end carton is a pair of side flaps that are continuous with the side surface portion, an inner lid that is continuous with either the front portion or the back portion, and an outer lid that is continuous with either the front portion or the back portion. The inner lid and the outer lid are sequentially stacked on the outer sides of the pair of side flaps, and the outer lid is bonded to the outer surface of the inner lid, thereby sealing the end surface portion.

  Further, each end surface portion of the tack end carton is composed of a pair of side flaps that are continuous with the side surface portion, and a lid that is continuous with either the front portion or the back portion, and the lid is overlapped on the outside of the pair of side flaps, The lid is closed by inserting the insertion piece provided at the tip of the lid into the inside of the peripheral wall portion. The insertion piece of each lid may be bonded to the peripheral wall portion, whereby the both end surface portions of the tack end carton are sealed.

  An opening cut line for opening may be provided on the upper end side of these packaging boxes. In this case, the packaging box can be easily opened by separating the lid from the front portion or the rear portion along the cut line. .

  Moreover, as disclosed in many documents including Patent Document 1, a similar cut line may be provided on the lower end side of the packaging box. In this type of packaging box, when the upper end side is already opened and the lid is further separated from the front portion or the rear portion along the cut line on the lower end side, the lids on both sides are opened.

  In this state, the connection between the front portion and the rear portion via the lid is released, and thereby the bending angle of the four corner portions of the peripheral wall portion is easily changed over an angle range of 0 ° to 180 °. It becomes possible. Therefore, the packaging box can be easily folded flat so that the bending angle of the pair of corner portions positioned on the diagonal line is 0 ° and the bending angle of the remaining pair of corner portions is 180 °. Therefore, the plurality of packaging boxes folded in this manner can be stacked to be compactly discarded as a whole.

JP2013-227036A

  However, the operation of opening the lids on both sides of the packaging box that has already been opened by cutting off the upper end side for the purpose of folding may be annoying to the user. In particular, it takes time and labor to open and dispose of a large number of packaging boxes per day in a dispensing pharmacy or the like, and there is a problem that an operator who repeatedly cuts out easily hurts his nails.

  In addition, in order to easily fold the packaging box with the lower end side lid closed, it may be possible to fold a folding fold in advance on the peripheral wall part or lower end side cover, In this case, even in an unopened use state, the packaging box is easily deformed so as to be bent along the folding fold. Therefore, when an external force is applied to the unopened packaging box, a load is easily applied to the contents due to the deformation of the packaging box, and for example, a problem such as breaking of the aluminum foil of the PTP sheet may occur.

  Then, this invention makes it a subject to provide the packaging box which can be discarded simply and compactly, suppressing the deformation | transformation in use condition.

In order to solve the above problems, a packaging box according to the present invention is configured as follows.
The first aspect of the present invention is:
A front wall portion and a back wall portion facing the first direction, and a peripheral wall portion having a pair of side surfaces facing the second direction perpendicular to the first direction;
A first end surface portion that closes an open end portion of the peripheral wall portion on one end side in a third direction perpendicular to the first direction and the second direction;
A second end surface portion that closes an open end portion of the peripheral wall portion on the other end side in the third direction, and a packaging box comprising:
In the central part of the first direction on each surface of the pair of side parts, a concave or convex side trigger part is provided on a part of the total length in the third direction,
In the central portion of the first direction at the surface of the second end face portion, a concave or convex end surface trigger unit is provided et al is a portion of the length of the second direction,
The second end surface portion includes an inner lid connected to an end portion in the third direction in either the front portion or the back portion, and an end in the third direction in either the front portion or the back portion. An outer lid connected to the part,
The outer lid is provided with the end face trigger portion,
A perforation cut or a straight half cut extending in the second direction is formed in a portion of the inner lid that overlaps the end face trigger portion .

  The “trigger part” in this specification means a part of the surface having the trigger part that causes the surface to be bent, and the “trigger part” is subjected to a process for making it easy to bend. Is done. As a specific example of the process for making it easy to bend, there is a process of forming a groove-like “ruled line” by embossing.

  According to this packaging box, since the side face trigger part and the end face trigger part are provided at the first direction center part of the side part and the first direction center part of the second end face part that are not bent in use, If the first end surface portion is left open, even when the second end surface portion remains closed, when the packaging box is crushed by the force from the first direction, the pair of side surface portions and the second end surface portion are It is easy to be in a state of being folded in half by being folded at the central part in each first direction, whereby the packaging box is easily crushed flatly as a whole.

  Therefore, compared with the case where the packaging box is folded after both the first end surface portion and the second end surface portion are opened as in the prior art, the labor and time for opening the second end surface portion can be saved, and the packaging box can be easily removed. It can be crushed flat. Therefore, when discarding a plurality of packaging boxes, these packaging boxes can be discarded compactly by superimposing a plurality of flattened packaging boxes while reducing the burden on the operator.

  Further, according to this packaging box, the side surface trigger portion is provided only at a part of the total length in the third direction in each side surface portion, and the end surface trigger is provided only at a part of the total length in the second direction at the second end surface portion. Since the portion is not provided, each side surface portion and the second end surface portion are not easily bent and deformed unless a force to be crushed from the first direction is applied to the packaging box. Therefore, the deformation | transformation of the packaging box in a use condition is suppressed and the contents can be protected effectively.

Further, according to this packaging box, when the packaging box is crushed, the outer lid of the second end surface portion is provided with the above-described end surface trigger portion, whereby the bending deformation at the center portion in the first direction is promoted. In addition, the inner lid of the second end surface portion is effectively promoted to bend along the perforated cut or the straight half cut at the center in the first direction. Therefore, it is possible to effectively promote the folding of the second end surface portion in which a corner portion continuous in the second direction is newly formed. Moreover, since the inner lid provided with the cut or half cut which tends to impair the appearance is covered with the outer lid in use, it is possible to prevent the appearance of the packaging box from being impaired.

In the first aspect of the present invention,
The inner lid may be bonded to the outer lid only at a portion closer to the base end side than the notch or the half cut in the first direction.

In this case, after the pair of side surfaces and the inner lid and outer lid of the second end surface portion are folded and the packaging box is crushed as described above, the pair of side surfaces and the outer lid of the second end surface portion are When the inner lid of the second end surface portion is returned to the original flat state, only the base end side portion follows the outer lid from the cut or half cut, and the distal end side portion not bonded to the outer lid is , Easy to stand up from the outer lid. When trying to store the contents in the packaging box in this state, the contents interfere with the rising portion of the inner lid, so that it is easy to notice that the packaging box has been reused after being crushed once. Become. Therefore, when the reuse of the packaging box is not preferable, the reuse can be prevented.

In the first aspect of the present invention,
A cut line for opening the opening end portion of the peripheral wall portion may be provided only on the first end surface portion side of the first end surface portion and the second end surface portion.

In this case, by cutting along the cut line, the packaging box can be easily opened on the first end face side, and since the same cut line is not provided on the second end face side, the user mistakenly at the time of opening. It is possible to prevent the second end surface portion from being opened, and after opening, it is easy for the user to recognize that the packaging box can be easily crushed flat even when the second end surface portion is closed. In addition, since the cuts penetrating through the wall portion of the packaging box can be reduced as compared with the case where the cut line is provided also on the second end surface portion side, the contents can be effectively protected.

In the first aspect of the present invention,
The end surface trigger portion is formed to extend linearly along the second direction from a portion between one end and the center in the second direction on a surface of the outer lid to a portion between the other end and the center. May be.

In this case, since the end face trigger portions are not provided at both ends in the second direction of the second end face portion, the bending deformation of the second end face portion in the use state is effectively suppressed, thereby Protection can be effectively achieved. Moreover, when the packaging box is crushed by forming the end face trigger part so as to extend in the second direction through the second direction center part of the second end face part, the first direction center of the second end face part In the portion, bending deformation is newly promoted such that a corner portion continuous in the second direction is newly formed, and this facilitates crushing the packaging box into a flat shape.

In the first aspect of the present invention,
The end face trigger portion extends from the portion between the one end and the center in the second direction on the surface of the outer lid so as to expand in a V shape toward the one end side in the second direction; A second end face trigger portion extending from the portion between the other end and the center in the second direction on the surface of the outer lid so as to expand in a V shape toward the other end in the second direction. May be.

In this case, since the end face trigger part is not provided in the center part and both ends of the second direction in the second end face part, the bending deformation of the second end face part in the use state is effectively suppressed. The contents can be effectively protected. In addition, the V-shaped first and second end surface trigger portions are formed so as to face each other in the first direction center portion of the second end surface portion, so that when the packaging box is crushed, the second end surface portion is It is effectively promoted to bend and deform in the central portion in the first direction, which facilitates crushing the packaging box into a flat shape.

In the first aspect of the present invention,
The first end surface portion and the second end surface portion each have a pair of side flaps that are continuous with the end portions in the third direction of the pair of side surface portions, and a lid that is overlapped on the outside of the pair of side flaps. ,
Each of the side flaps may be formed with a perforated cut or a linear half cut extending in the second direction at a central portion of the first end surface portion and the second end surface portion in the first direction. Good.

In this case, by forming a perforated cut or a linear half cut at the center in the first direction of each side flap provided on the first end surface portion and the second end surface portion, each side flap is side-faced. It becomes easy to bend and deform together with the part. Moreover, since each side flap provided with the cut | disconnection or half cut which is easy to impair an external appearance is covered with a lid in use condition, it can prevent impairing the external appearance of a packaging box.

In this case,
In a portion of each surface of the pair of side surface portions adjacent to the boundary with the side flap of the second end surface portion, V extends from the center portion in the first direction toward the second end surface portion side in the third direction. A concave or convex bending promoting portion extending so as to expand in a letter shape may be provided.

In addition, the “bending promotion part” in the present specification means a part on the surface having the bending promotion part, which has been subjected to a process for facilitating bending. As a specific example of the process for making it easy to bend, there is a process of forming a groove-like “ruled line” by embossing.

As a result, when the entire side surface portion is bent and deformed at the central portion in the first direction, the portion adjacent to the boundary with the side flap of the second end surface portion on the side surface portion is inward by bending along the V-shaped bending promoting portion. As a result, the entire side flap can be urged to be folded inside the side surface portion. Therefore, it can suppress that the bending deformation of a side part is inhibited by a side flap, and, thereby, the whole packaging box can be crushed smoothly.

According to a second aspect of the invention,
A front wall portion and a back wall portion facing the first direction, and a peripheral wall portion having a pair of side surfaces facing the second direction perpendicular to the first direction;
A first end surface portion that closes an open end portion of the peripheral wall portion on one end side in a third direction perpendicular to the first direction and the second direction;
A second end surface portion that closes an open end portion of the peripheral wall portion on the other end side in the third direction, and a packaging box comprising:
In the central part of the first direction on each surface of the pair of side parts, a concave or convex side trigger part is provided on a part of the total length in the third direction,
In the central portion of the first direction on the surface of the second end surface portion, a concave or convex end surface trigger portion is provided on a part of the entire length in the second direction,
The side trigger portion includes first and second side trigger portions that are spaced apart from each other in the third direction and formed to extend in the third direction, respectively.
On each surface of the pair of side surface portions, the first side surface trigger portion is disposed on one side across the central portion in the third direction, and the second side surface trigger portion is disposed on the other side,
A concave or convex bending suppression portion extending in the first direction is provided in a portion between the first side surface trigger portion and the second side surface trigger portion on each surface of the pair of side surface portions. Features.

In this case,
The bending suppressing portion may be provided on each of one side and the other side of the surface of the pair of side surface portions with the central portion in the third direction interposed therebetween.

According to this packaging box, since the side face trigger part and the end face trigger part are provided at the first direction center part of the side part and the first direction center part of the second end face part that are not bent in use, If the first end surface portion is left open, even when the second end surface portion remains closed, when the packaging box is crushed by the force from the first direction, the pair of side surface portions and the second end surface portion are It is easy to be in a state of being folded in half by being folded at the central part in each first direction, whereby the packaging box is easily crushed flatly as a whole.

Therefore, compared with the case where the packaging box is folded after both the first end surface portion and the second end surface portion are opened as in the prior art, the labor and time for opening the second end surface portion can be saved, and the packaging box can be easily removed. It can be crushed flat. Therefore, when discarding a plurality of packaging boxes, these packaging boxes can be discarded compactly by superimposing a plurality of flattened packaging boxes while reducing the burden on the operator.

Further, according to this packaging box, the side surface trigger portion is provided only at a part of the total length in the third direction in each side surface portion, and the end surface trigger is provided only at a part of the total length in the second direction at the second end surface portion. Since the portion is not provided, each side surface portion and the second end surface portion are not easily bent and deformed unless a force to be crushed from the first direction is applied to the packaging box. Therefore, the deformation | transformation of the packaging box in a use condition is suppressed and the contents can be protected effectively.

And according to this packaging box, since the side trigger part is not provided in the 3rd direction central part in each side part, the bending deformation of the side part in use condition is controlled effectively. The contents can be effectively protected. Further, when the packaging box is crushed on the one side and the other side across the central portion in the third direction, the first and second side trigger portions are formed to extend in the third direction, respectively. In the central part in the first direction of the part, bending deformation is effectively promoted such that a corner part continuously formed in the third direction is formed, whereby the packaging box is easily flattened.

By providing each side surface portion with a bending suppression portion extending in the first direction, the bending deformation of the side surface portion when a load is input from the first direction in the use state is more effectively suppressed. Things can be protected more effectively.

In a second aspect of the invention,
The second end surface portion includes an inner lid connected to an end portion in the third direction in either the front portion or the back portion, and an end in the third direction in either the front portion or the back portion. An outer lid connected to the part,
The outer lid is provided with the end face trigger portion,
A perforation cut or a straight half cut extending in the second direction may be formed in a portion of the inner lid that overlaps the end face trigger portion.

In this case, when the packaging box is crushed, the outer lid of the second end surface portion is provided with the end surface trigger portion, whereby the bending deformation at the center portion in the first direction is promoted, and the second end surface portion The inner lid is effectively promoted to bend and deform along a perforated cut or a linear half cut at the center in the first direction. Therefore, it is possible to effectively promote the folding of the second end surface portion in which a corner portion continuous in the second direction is newly formed. Moreover, since the inner lid provided with the cut or half cut which tends to impair the appearance is covered with the outer lid in use, it is possible to prevent the appearance of the packaging box from being impaired.

In a second aspect of the invention,
The first end surface portion and the second end surface portion each have a pair of side flaps that are continuous with the end portions in the third direction of the pair of side surface portions, and a lid that is overlapped on the outside of the pair of side flaps. ,
Each of the side flaps may be formed with a perforated cut or a linear half cut extending in the second direction at a central portion of the first end surface portion and the second end surface portion in the first direction. Good.

In this case, by forming a perforated cut or a linear half cut at the center in the first direction of each side flap provided on the first end surface portion and the second end surface portion, each side flap is side-faced. It becomes easy to bend and deform together with the part. Moreover, since each side flap provided with the cut | disconnection or half cut which is easy to impair an external appearance is covered with a lid in use condition, it can prevent impairing the external appearance of a packaging box.

  ADVANTAGE OF THE INVENTION According to this invention, after use, a packaging box can be easily crushed flatly, without opening a 2nd end surface part, suppressing the deformation | transformation of the packaging box in use condition. Therefore, a plurality of packaging boxes can be discarded as a whole while reducing the burden on the operator.

It is a perspective view which shows the packaging box which concerns on 1st Embodiment. It is the perspective view which looked at the packaging box from another direction. It is a perspective view which shows the packaging box before sealing. It is a top view which shows the blank sheet which comprises the packaging box. It is the sectional view on the AA line of FIG. 4 which shows the cross-sectional shape of a part of the blank sheet. It is a perspective view which shows how to crush the packaging box after use. It is a perspective view which shows the same packaging box of the state crushed. It is the BB sectional drawing of FIG. 7 which shows the inside of the crushed packaging box. It is CC sectional view taken on the line of FIG. 7 which shows the inside of the crushed packaging box. It is sectional drawing similar to FIG. 9 which shows the inside of the packaging box of the state which was going to restore | restore to the shape before crushing. It is a perspective view similar to FIG. 2 which shows the packaging box which concerns on 2nd Embodiment. It is a perspective view similar to FIG. 3 which shows the packaging box which concerns on 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the following description of the embodiment, directions such as “up”, “down”, “left”, “right”, “front”, “back”, “height”, “lateral”, “front / rear”, etc. The term to show shall point out the direction at the time of seeing the packaging box of the assembled and sealed state from the front side except the case where there is special description.

  In addition, the terms “front-rear direction X”, “lateral direction Y”, and “height direction Z” used in the following description are respectively referred to as “first direction”, “second direction”, “ This corresponds to the “third direction”.

  Further, in the present specification, when the term “outside” or “inside” is simply used, these terms mean “outside” or “inside” of the packaging box.

[First Embodiment]
As shown in FIGS. 1 to 3, the packaging box 1 according to the first embodiment includes a rectangular tube-shaped peripheral wall portion 4 extending in the height direction Z and having openings at both ends, and an upper end of the peripheral wall portion 4. Four continuous flaps 11, 12, 13, and 14 and four flaps 21, 22, 23, and 24 connected to the lower end of the peripheral wall 4 are provided.

  The peripheral wall 4 is opposed to each other in the front part 5, the back part 6 facing the back side of the front part 5 in the front-rear direction X, and the front part 5 and the back part 6 in the lateral direction Y. 1 side surface portion 7 and second side surface portion 8. The front part 5 and the back part 6 are arranged in parallel to each other and have the same width in the lateral direction Y. The first side surface portion 7 and the second side surface portion 8 are arranged in parallel to each other and have the same width in the front-rear direction X. The width in the front-rear direction X of the first side surface portion 7 and the second side surface portion 8 is smaller than the width in the lateral direction Y of the front surface portion 5 and the back surface portion 6.

  Specifically, the upper flaps 11, 12, 13, and 14 are an inner lid 11 as a first flap that is continuous with the upper end of the front portion 5, an outer lid 12 as a second flap that is continuous with the upper end of the rear portion, The side flaps 13 are connected to the upper end of the side surface portion 7, and the side flaps 14 are connected to the upper end of the second side surface portion 8.

  The upper four flaps 11 to 14 are folded from the inside so as to overlap in the order of the pair of side flaps 13, 14, the inner lid 11, and the outer lid 12. The pair of side flaps 13 and 14 do not interfere with each other in the folded state, and a gap is generated between the front end portions of the side flaps 13 and 14. The inner lid 11 is folded without being fixed to the outside of the side flaps 13 and 14. The inner lid 11 has a trapezoidal shape that becomes slightly thinner toward the tip, and has a size that closes most of the upper opening of the peripheral wall 4. The outer lid 12 is folded from the side opposite to the inner lid 11 so as to close the upper end opening of the peripheral wall portion 4, is overlapped on the outer side of the inner lid 11, and is fixed by adhesion, for example. The outer lid 12 has a trapezoidal shape that becomes slightly thinner toward the tip, and has a size that closes most of the upper opening of the peripheral wall 4.

  The upper end opening of the peripheral wall portion 4 is completely closed by folding the flaps 11 to 14 of the peripheral wall portion 4, and the first end surface portion as the upper surface portion of the packaging box 1 by these flaps 11 to 14. 10 is configured. The first end surface portion 10 is sealed by bonding the inner lid 11 and the outer lid 12 together.

  Specifically, the lower flaps 21, 22, 23, and 24 are an inner lid 21 that is continuous with the lower end of the front portion 5, an outer lid 22 that is continuous with the lower end of the back surface portion 6, and a side that is continuous with the lower end of the first side surface portion 7. The side flaps 24 are connected to the flap 23 and the lower end of the second side surface portion 8.

  The configurations of the lower inner lid 21, outer lid 22, and the pair of side flaps 23, 24 are the same as the upper inner lid 11, outer lid 12, and the pair of side flaps 13, 14, respectively. The lower flaps 21 to 24 are folded from the inside so that the pair of side flaps 23 and 24, the inner lid 21, and the outer lid 22 overlap in this order. The inner lid 21 is folded without being fixed to the outside of the side flaps 23, 24. The inner lid 21 and the outer lid 22 are fixed to each other by adhesion, for example.

  By these four flaps 21 to 24, the lower end opening of the peripheral wall portion 4 is sealed in a completely closed state. These flaps 21 to 24 constitute a second end surface portion 20 as a bottom surface portion of the packaging box 1.

  As described above, the packaging box 1 is a sealed end carton in which the first and second end surface portions 10 and 20 are each sealed with four flaps. The packaging box 1 in a state where the first and second end face portions 10 and 20 are sealed has a substantially rectangular parallelepiped overall shape.

  The packaging box 1 is a paper carton that is assembled by folding a blank sheet 2 made of cardboard as shown in FIG. 4 is a plan view of the blank sheet 2 viewed from the outside of the respective parts 5, 6, 7, 8, 9, 11, 12, 13, 14, 21, 22, 23, 24 constituting the packaging box 1. FIG. is there.

  In the blank sheet 2 shown in FIG. 4, the fixing surface portion 9, the front surface portion 5, the first side surface portion 7, the back surface portion 6, and the second side surface portion 8 are concave folds extending in the height direction Z in order from the left side in FIG. They are connected in series via lines F1 to F4.

  An upper side flap 13 is connected to the upper side of the first side surface part 7 via a concave crease line F5 extending in the horizontal direction, and a concave crease line F6 extending in the horizontal direction is provided below the first side surface part 7. The lower side flaps 23 are connected to each other.

  An upper side flap 14 is connected to the upper side of the second side surface part 8 via a concave crease line F7 extending in the horizontal direction, and a concave crease line F8 extending in the horizontal direction is provided below the second side surface part 8. The lower side flaps 24 are connected to each other.

  The first and second side surface portions 7 and 8 are provided with side trigger portions 41 and 42, bending suppression portions 44 and 45, and a bending promotion portion 50, which will be described later, respectively. Each side flap 13, 14, 23, 24 is provided with cuts 64, 66 described later.

  An upper outer lid 12 is connected to the upper side of the back surface portion 6 via a concave fold line F9 extending in the horizontal direction, and a lower side of the back surface portion 6 is connected to a lower side via a concave fold line F10 extending in the horizontal direction. The outer lid 22 on the side is continuous. The lower outer lid 22 is provided with an end face trigger portion 60 described later.

  The upper inner lid 11 is connected to the upper side of the front part 5 via a concave crease line F11 extending in the horizontal direction, and the lower side of the front part 5 is connected to the lower side via a concave crease line F12 extending in the horizontal direction. The inner lid 21 on the side is continuous. A cut line 30 and a pressed part 5a, which will be described later, are provided on the upper edge of the front part 5. The lower inner lid 21 is provided with a cut 62 described later.

  5 is a cross-sectional view taken along line AA of FIG. 4 showing the cross-sectional shape of the crease line F4 and the first side trigger 41 described later. As shown in FIG. 5, the crease line F <b> 4 and the first side surface trigger portion 41 are formed in a concave shape when viewed from the outer surface of the blank sheet 2. Although not shown in FIG. 5, the other crease lines F1 to F3, F5 to F12, a second side trigger part 42, bending suppression parts 44 and 45, which will be described later, a bending promoting part 50, and an end face trigger part. 60 is also formed in the same concave shape. These concave portions 41, 42, 44, 45, 50, 60, F1 to F12 are configured by groove-like ruled lines formed by embossing.

  Then, the procedure which assembles the packaging box 1 using the blank sheet 2 shown in FIG. 4 is demonstrated.

  First, it is folded along a crease line F4 between the second side surface portion 8 and the back surface portion 6, and is folded along a crease line F2 between the first side surface portion 7 and the front surface portion 5. The inner surface of 8 and the outer surface of the fixed surface portion 9 are bonded. Thereby, the folded packaging box 1 is completed.

  Thereafter, when the four corners of the peripheral wall portion 4 along the crease lines F1 to F4 extending in the height direction Z are raised at substantially right angles, the first end surface portion 10 and the second end surface portion 20 are opened as shown in FIG. The packaging box 1 in a state is formed.

  Subsequently, the upper flaps 11 to 14 and the lower flaps 21 to 24 are folded as described above, and the outer lids 12 and 22 are bonded to the inner lids 11 and 21, respectively. The 1 end surface part 10 and the 2nd end surface part 20 are sealed, and the packaging box 1 of the sealing state shown in FIG. 1 is completed.

  As described above, since the packaging box 1 of this embodiment is a sealed end carton, when closing the first and second end surface portions 10 and 20 and closing the end surface of the tack end carton, the insertion flap is used. No insertion process is required. Therefore, the 1st and 2nd end surface parts 10 and 20 of the packaging box 1 can be closed easily and rapidly by an automatic packaging machine.

  The packaging box 1 assembled as described above is opened by breaking the front part 5 along the tear line 30 provided in the front part 5.

  The cut line 30 is composed of a plurality of cuts arranged in a perforation. The cut line 30 extends horizontally from the upper left end of the front portion 5 along the upper edge of the front portion 5 to the right in the horizontal direction Y, and from the upper right end of the front portion 5 along the upper edge of the front portion 5. A second straight portion 30b extending to the left in the direction Y, and a bulging portion that detours from the right end of the first straight portion 30a so as to bulge downward from the upper edge of the front portion 5 to the left end of the second straight portion 30b. 30c.

  Thereby, the substantially trapezoidal pressed portion 5a surrounded by the upper edge of the front portion 5 and the bulging portion 30c of the cutoff line 30 in the vicinity of the boundary with the inner lid 11 of the front portion 5 and in the central portion in the lateral direction Y. Is formed.

  However, the structure of the cutoff line 30 is not limited to the above-mentioned thing, A various change is possible. For example, the tear line 30 may be configured by a plurality of cuts arranged in a zipper shape.

  When the pressed part 5 a is pushed in from the outside by the finger of the person opening the packaging box 1, the pressed part 5 a is cut off from the front part 5 along the bulging part 30 c of the tear line 30. Further, when the pressed portion 5a separated from the front portion 5 is pulled upward together with the inner lid 11, the inner lid 11 is separated from the front portion 5 along the first and second straight portions 30a, 30b of the tear line 30. It is.

  As shown in FIG. 6, when the inner lid 11 bonded to the outer lid 12 is separated from the front portion 5 as described above, the outer lid 12 restrained by the front portion 5 is opened via the inner lid 11. (See FIG. 6). Thereby, the packaging box 1 will be in the open state in which the 1st end surface part 10 was open | released. In the opened state, the inner lid 11 and the pressed part 5a connected to the inner lid 11 are connected to the back surface part 6 via the outer cover 12.

  The opened packaging box 1 can be easily crushed flatly by an external force from the front-rear direction X even when the second end face portion 20 remains closed (see FIG. 7).

  Hereinafter, a configuration for facilitating crushing of the packaging box 1 in a flat shape will be described.

  As shown in FIGS. 1 to 3, side trigger parts 41, 42 are provided at the central part in the front-rear direction X on each surface of the first side face part 7 and the second side face part 8. The side trigger portions 41 and 42 are provided on a part of the entire length of each surface of the first side surface portion 7 and the second side surface portion 8 in the height direction Z.

  The side surface trigger parts 41 and 42 are configured by a first side surface trigger part 41 and a second side surface trigger part 42 that are arranged at intervals in the height direction Z. Each side surface trigger part 41 and 42 is comprised by the concave groove part extended in the height direction Z. As shown in FIG. In each of the first side trigger part 41 and the second side trigger part 42, the first side trigger part 41 is provided above the center in the height direction Z, and the second side trigger part 41 is below the center in the height direction Z. A side trigger part 42 is provided.

  The first side trigger part 41 and the second side trigger part 42 have substantially the same length. The distance between the first side trigger part 41 and the second side trigger part 42 in the height direction Z is shorter than the length of each side trigger part 41, 42. In the height direction Z, the distance between the upper ends of the first side surface portion 7 and the second side surface portion 8 and the upper end of the first side surface trigger portion 41, the lower ends of the first side surface portion 7 and the second side surface portion 8, and the second The distance from the lower end of the side trigger part 42 is shorter than the distance between the first side trigger part 41 and the second side trigger part 42.

  In each of the first side trigger part 41 and the second side trigger part 42, bending suppression parts 44 and 45 are provided at portions between the first side trigger parts 41 and 41 and the second side trigger parts 42 and 42, respectively. ing. The bending suppression portions 44 and 45 are configured by a first bending suppression portion 44 and a second bending suppression portion 45 that are spaced apart from each other in the height direction Z. Each of the bending suppressing portions 44 and 45 is configured by a concave groove extending in the front-rear direction X. The central portion in the length direction of the first bending suppression portion 44 is in contact with the lower end of the first side surface trigger portion 41, and the central portion in the length direction of the second bending suppression portion 45 is on the upper end of the second side surface trigger portion 42. It touches.

  The 1st bending suppression part 44 and the 2nd bending suppression part 45 have a substantially equal length. The lengths of the first and second bending suppressing portions 44 and 45 are shorter than half the widths of the first side surface portion 7 and the second side surface portion 8 in the front-rear direction X. The lengths of the first and second bending suppressing portions 44 and 45 are shorter than the distance between the first side surface trigger portion 41 and the second side surface trigger portion 42 in the height direction Z.

  Further, a bending promoting portion 50 is provided at each lower end portion of the first side surface portion 7 and the second side surface portion 8, that is, at a portion adjacent to the boundary with the side flaps 23, 24 of the second end surface portion 20. The bending promoting portion 50 is a concave shape extending so as to expand in a V shape from the center portion in the front-rear direction X of the first side surface portion 7 and the second side surface portion 8 toward the second end surface portion 20 side in the height direction Z. It consists of a groove.

  As shown in FIG. 3, the side flaps 13, 14 of the first end surface portion 10 have a height direction Z in a state where the side flaps 13, 14 are arranged in parallel to the first side surface portion 7 and the second side surface portion 8. A perforated cut 64 extending in the direction is formed. In FIG. 3, only the notch 64 of one side flap 13 is shown, but the same notch 64 is also formed in the other side flap 14. The notch 64 is disposed in the center portion in the front-rear direction X of the first end surface portion 10.

  Similar cuts 66 are also formed in the side flaps 23 and 24 of the second end surface portion 20. In FIG. 3, only the notch 66 of one side flap 23 is shown, but the same notch 66 is also formed in the other side flap 24.

  The notch 66 is formed in a perforated shape extending in the lateral direction Y in a state in which the second end surface portion 20 is closed, that is, in a state in which the side flaps 23 and 24 are disposed at right angles to the first and second side surface portions 7 and 8. Has been. The notch 66 is disposed in the center portion in the front-rear direction X of the second end surface portion 20.

  In addition, in each side flap 13, 14, 23, 24 of the 1st end surface part 10 and the 2nd end surface part 20, it may replace with the notches 64 and 66 and you may make it form a linear half cut.

  As shown in FIG. 2, an end surface trigger portion 60 is provided on the outer lid 22 of the second end surface portion 20. The end face trigger part 60 is configured by a concave groove part extending linearly along the lateral direction Y on the surface of the outer lid 22. The end face trigger unit 60 is disposed at the center of the outer lid 22 in the front-rear direction X. With respect to the lateral direction Y, the right end of the end surface trigger portion 60 is located between the right end and the center of the outer lid 22, and the left end of the end surface trigger portion 60 is located between the left end and the center of the outer lid 22. That is, the end surface trigger part 60 extends linearly from a portion between the one end portion and the central portion in the lateral direction Y of the outer lid 22 to a portion between the other end portion and the central portion.

  As shown in FIG. 3, in the inner lid 21 of the second end surface portion 20, a perforated cut 62 extending in the lateral direction Y is formed in a portion overlapping the end surface trigger portion 60 (see FIG. 2) of the outer lid 22. Has been. The notch 62 is disposed at the center portion in the front-rear direction X of the second end surface portion 20. The notch 62 is formed shorter than the end face trigger part 60. With respect to the lateral direction Y, the right end of the notch 62 is located closer to the center than the right end of the end face trigger portion 60, and the left end of the notch 26 is located closer to the center than the left end of the end face trigger portion 60.

  The inner lid 21 of the second end surface portion 20 is bonded to the outer lid 22 only at the base end side portion with respect to the notch 62, and the distal end side portion with respect to the notch 62 is not restrained by the outer lid 22.

  In the inner lid 21, a linear half cut may be formed instead of the cut 62.

  The packaging box 1 configured as described above is crushed as follows.

  As shown in FIGS. 6 and 7, in the embodiment of the present invention, the packaging box 1 that has been opened and used after the contents are taken out is compactly discarded by crushing as follows. Can do.

  Specifically, the packaging box 1 with the first end face portion 10 opened and the second end face portion 20 closed is placed in the front-rear direction X from the front portion 5 side or the back portion 6 side with the palm of the user, for example. To push the packaging box 1 so that the front surface portion 5 and the rear surface portion 6 come close to each other, and the pair of side surface portions 7 and 8 and the second end surface portion 20 are folded while projecting outward. Can be crushed.

  More specifically, when the packaging box 1 is crushed, the first side surface portion 7 and the second side surface portion 8 generally project outward in the lateral direction Y as shown in FIGS. 7 and 8, and It deform | transforms so that it may be folded in half along the 1st side surface trigger parts 41 and 41 and the 2nd side surface trigger parts 42 and 42 which extend in the height direction Z. Thereby, the corner parts 43 and 43 which continue in the height direction Z are newly formed in the center part of the front-back direction X of each side part 7 and 8. FIG. At this time, the front side portion and the back side portion in the front-rear direction X from the corner portions 43, 43 in the side surface portions 7, 8 are folded so that the inner surfaces thereof face each other.

  Further, as shown in FIG. 7, the upper side flaps 13 and 14 are generally folded outward in the lateral direction Y and folded in half along the perforated cuts 64 and 64 extending in the height direction Z. To be deformed. At this time, the front side portion and the back side portion of the side flaps 13 and 14 are folded so that the inner surfaces thereof face each other than the central portion in the front-rear direction X.

  On the other hand, as shown in FIGS. 7 to 9, the lower side flaps 23 and 24, together with the portions adjacent to the lower side of the V-shaped bending promoting portions 50 and 50 in the side surface portions 7 and 8, promote bending. Folded inside the packaging box 1 along the portions 50 and 50 and overlapped inside the portions adjacent to the upper side of the bending promoting portions 50 and 50 in the side surface portions 7 and 8.

  At this time, the lower side flaps 23 and 24 are folded in half along the perforated cuts 66 and 66 in half along the perforated cuts 66 while the tips thereof are displaced upward in the height direction Z. Accordingly, the front side portion and the back side portion of the side flaps 23 and 24 are folded so that the outer surfaces thereof face each other than the center portion in the front-rear direction X. The side flaps 23 and 24 folded in this way are sandwiched between the front side portion and the back side portion in the front-rear direction X with respect to the corner portions 43 in the corresponding side surface portions 7 and 8.

  As shown in FIGS. 7 and 9, the outer lid 22 of the second end surface portion 20 is folded in half along the end surface trigger portion 60 extending in the lateral direction Y and is generally in the height direction Z. Deforms to spread outward. The inner lid 21 of the second end surface portion 20 is folded in half along a perforated cut 62 extending in the lateral direction Y following the outer lid 22 bonded at the base end side portion thereof, and , It is deformed so as to spread outward in the height direction Z as a whole. At this time, the front side portion and the back side portion of the inner lid 21 in the front-rear direction X with respect to the notch 26 are folded so that the inner surfaces thereof face each other.

  As a result, a corner portion 63 that continues in the lateral direction Y is newly formed in the center portion of the second end surface portion 20 in the front-rear direction X.

  As described above, if only the first end surface portion 10 of the packaging box 1 is opened, the side trigger portions 41 and 42 described above are pressed by the front and rear direction X even when the second end surface portion 20 is closed. The packaging box 1 can be easily crushed by promoting the bending at the bending promoting portion 50 and the end face trigger portion 60.

  Therefore, compared with the case where the packaging box is folded after the both end surfaces are opened as in the prior art, it is possible to easily crush the packaging box into a flat shape, saving time and labor for opening the second end surface portion 20. Therefore, when discarding the plurality of packaging boxes 1, these packaging boxes 1 can be discarded in a compact manner by stacking the plurality of packaging boxes 1 crushed flat while reducing the burden on the operator.

  Moreover, as above-mentioned, a pair of side surface parts 7 and 8 and the 2nd end surface part 20 are folded in half in the state which protruded outside, respectively.

  If the side surface portions 7 and 8 and the second end surface portion 20 are folded so as to enter the inside of the peripheral wall portion 4, the folded side surface portions 7 and 8 and the second end surface portion 20 are formed between the front surface portion 5 and the back surface portion 6. Each corner portion between the side surface portions 7 and 8 and the front surface portion 5 and the back surface portion 6, and each corner portion between the second end surface portion 20 and the front surface portion 5 and the back surface portion 6. And the corner portions 43, 43, 63 newly formed by folding the side surface portions 7, 8 and the second end surface portion 20 are all sharp, so that the folded side surface portions 7 , 8 and the second end surface portion 20 are increased in restoring force to return to the original flat shape, and the distance between the front surface portion 5 and the back surface portion 6 is easily increased.

  On the other hand, according to the present embodiment, the pair of folded side surface portions 7 and 8 and the second end surface portion 20 are not interposed between the front surface portion 5 and the back surface portion 6, and each of the side surface portions 7 and 8. Each corner part between the front part 5 and the back part 6 and the bending angle of the corner part between the second end face part 20 and the front part 5 and the back part 6 are obtuse angles. The restoring force acting on the 7, 8 and the second end face part 20 is reduced, the distance between the front part 5 and the back part 6 is not easily expanded, and it is easy to maintain a flat state as a whole. Therefore, when a plurality of crushed packaging boxes 1 are overlapped, these packaging boxes 1 can be easily collected with a small overall thickness, and can be discarded in a more compact state.

  Moreover, since the side surface trigger parts 41 and 42 are not provided in the height direction Z center part of each side part 7 and 8, but the bending suppression parts 44, 44, 45, and 45 are provided instead, It is possible to suppress the bending of the side surface portions 7 and 8 in the use state (unopened state).

  Furthermore, since the end surface trigger part 60 is formed only in the center part of the 2nd end surface part 20 of the horizontal direction Y, the bending deformation of the 2nd end surface part 20 in use condition can be suppressed.

  As described above, unless the force for crushing from the front-rear direction X is applied to the packaging box 1, the side surface portions 7, 8 and the second end surface portion 20 are not easily bent and deformed, and thus are accommodated in the packaging box 1. Content can be effectively protected.

  In addition, the packaging box 1 is provided with the tear line 30 only on the first end face part 10 side of the front part 5 and is not provided with the tear line on the second end face part 20 side. It can suppress opening from the end surface part 20 side.

  As a result, if an attachment such as a package insert is enclosed on the first end face 10 side in the packaging box 1, opening from the side on which the attachment is enclosed can be urged. Therefore, at the time of opening from the first end face portion 10 side, by the attachment being interposed between the user's finger and the content, it is possible to suppress the pressing force applied by the user's finger directly to the content, There is an advantage that it becomes easy to take out only the attachment while maintaining the accommodation state of the contents.

  Furthermore, since the tear line 30 is provided only on the first end surface part 10 side, the inner space and the outer space of the packaging box 1 are made smaller than when provision lines are provided on both end face parts 10 and 20 side of the packaging box 1. It is possible to reduce the cut portions penetrating the wall portion of the packaging box 1 so as to communicate with each other, thereby effectively protecting the contents.

  Moreover, there is also an advantage that it is easy to recognize that the packaging box 1 can be folded without opening the second end surface portion 20 because the cut line is not provided on the second end surface portion 20 side.

  Furthermore, as described above, the inner lid 21 (see FIG. 3) of the second end surface portion 20 is bonded to the outer lid 22 only at the base end side portion from the notch 62 (see FIG. 9). Therefore, when the packaging box 1 is deformed so as to be crushed and folded as shown in FIG. 9 and then returned to the shape before being crushed as shown in FIG. The part 21a rises from the outer lid 22 and is easily caught by the side flaps 23 and 24.

  Therefore, the side flaps 23 and 24 are raised upward, the inner lid 21 and the outer lid 22 are likely to protrude downward, and it is difficult to completely return the second end surface portion 20 to the original flat shape. Therefore, when the contents are to be stored again in the packaging box 1 in such a state, the contents interfere with the second end surface portion 20 that is raised upward, and the packaging box 1 is once crushed again. It is easy for the user to notice that it was used. Therefore, in the case where reuse of the packaging box 1 is not preferable, it is possible to call attention for preventing reuse.

[Second Embodiment]
A packaging box 201 according to the second embodiment will be described with reference to FIG. Note that in the second embodiment, description of configurations and effects similar to those of the first embodiment will be omitted. In FIG. 11, elements having the same functions as those in the first embodiment are denoted by the same reference numerals.

  As shown in FIG. 11, the packaging box 201 according to the second embodiment is the packaging box 1 according to the first embodiment except for the configuration of the end face trigger part in the outer lid 22 of the second end face part 20 (see FIG. 11). 2).

  Also in the second embodiment, the end surface trigger portions 261 and 262 are provided at the center portion in the front-rear direction X on the surface of the outer lid 22 of the second end surface portion 20. Each of the end surface trigger units 261 and 262 includes a first end surface trigger unit 261 and a second end surface trigger unit 262 that are spaced apart from each other in the lateral direction Y. Each of the end surface trigger portions 261 and 262 is formed of a concave groove portion extending so as to expand in a V shape from the center in the front-rear direction X toward the outer side in the horizontal direction Y. The first end face trigger portion 261 is provided on the left side of the center in the horizontal direction Y, and the second end face trigger portion 262 is provided on the right side of the center in the horizontal direction Y. The 1st end surface trigger part 261 and the 2nd end surface trigger part 262 are arrange | positioned so that the vertex of each V character may oppose.

  With the above configuration, as in the first embodiment, a pair of pairings can be obtained by pressing the packaging box 201 with the first end face portion 10 opened and the second end face portion 20 closed from the front-rear direction X. The packaging box 201 can be crushed so that the side surface portions 7 and 8 and the second end surface portion 20 are folded while projecting outward.

  At this time, the outer lid 22 of the second end surface portion 20 is easily bent and deformed with the apex portions of the first and second end surface trigger portions 261 and 262 as base points. Specifically, the outer lid 22 is folded in half along an imaginary straight line extending in the lateral direction Y through the apexes of the first and second end face trigger portions 261 and 262, and as a whole in the height direction. It deforms so as to spread outside Z. Thereby, the 2nd end surface part 20 deform | transforms so that it may be folded in the aspect similar to 1st Embodiment.

  Therefore, also in 2nd Embodiment, the effect similar to 1st Embodiment can be acquired and the used packaging box 201 can be discarded compactly.

  Further, since the end surface trigger portions 261 and 262 of the second embodiment are formed only at two points in the horizontal direction Y, the end surface trigger portion 60 (see FIG. 2) is formed over a wide range in the horizontal direction Y. Compared to the first embodiment, it is easier to suppress the bending deformation of the second end surface portion 20 in the use state (unopened state). Therefore, according to the second embodiment, the contents can be more effectively protected in the usage state of the packaging box 201.

[Third Embodiment]
A packaging box 301 according to the third embodiment will be described with reference to FIG. Note that in the third embodiment, a description of the same configurations and effects as those of the first embodiment will be omitted. In FIG. 12, elements having the same functions as those in the first embodiment are denoted by the same reference numerals.

  As shown in FIG. 12, the packaging box 301 according to the third embodiment has the packaging box 1 according to the first embodiment (see FIG. 3) except for the configuration of the first end surface portion 310 and the second end surface portion 320. ). A packaging box 301 according to the third embodiment is a tack end carton in which a first end surface portion 310 and a second end surface portion 320 are each configured by three flaps described later.

  The first end surface portion 310 is different from the lid portion 311 connected to the upper edge of the front portion 5 via a crease line F11 extending in the horizontal direction Y and the tip end of the lid portion 311 via a crease line F13 extending in the horizontal direction Y. It is comprised by the insert piece 312 and a pair of side flaps 13 and 14 similar to 1st Embodiment.

  The second end surface portion 320 has a difference between a lid portion 321 connected to the lower edge of the front portion 5 via a crease line F12 extending in the horizontal direction Y and a tip end of the lid portion 321 via a crease line F14 extending in the horizontal direction Y. It is comprised by the insert piece 322 and a pair of side flaps 23 and 24 similar to 1st Embodiment.

  In the front-rear direction X center portion of the second end surface portion 320, the lid portion 321 is provided with an end surface trigger portion 60 similar to that of the first embodiment.

  The first end surface portion 310 and the second end surface portion 320 are closed by inserting the aforementioned insertion pieces 312 and 322 inside the peripheral wall portion 4. At this time, the respective insertion pieces 312 and 322 are bonded to the inner surface of the back surface portion 6 of the peripheral wall portion 4, whereby the both end surface portions 310 and 320 of the tack end carton 301 are sealed.

  Also in the packaging box 301 of the third embodiment configured as described above, the side face trigger parts 41 and 42 and the end face trigger part 60 similar to those of the first embodiment are provided, so the first end face part 310 is opened. And pressing the packaging box 301 with the second end surface portion 320 closed from the front-rear direction X, the pair of side surface portions 7 and 8 and the second end surface portion 320 project outward as in the first embodiment. While being folded, the packaging box 301 can be crushed. Thereby, the used packaging box 301 can be discarded compactly as in the first embodiment.

  In the third embodiment, the lid portion 321 of the second end surface portion 320 is provided with end surface trigger portions 261 and 262 similar to those of the second embodiment instead of the end surface trigger portion 60 similar to that of the first embodiment. Accordingly, the same effects as those of the second embodiment can be obtained.

  Moreover, in 3rd Embodiment, although the cover part 321 of the 2nd end surface part 320 is provided so that it may continue with the lower edge of the front part 5, it may be provided so that it may continue with the lower edge of the back part 6. .

  While the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments.

  In the above-described embodiment, the case where two side surface trigger portions are provided on the first side surface portion and the second side surface portion has been described, but one or three or more side surface trigger portions may be provided.

  Moreover, although the above-mentioned embodiment demonstrated the case where a bending suppression part was provided in a 1st side surface part and a 2nd side surface part, in this invention, a bending suppression part can also be abbreviate | omitted. In this case, in each side surface portion, the first side surface trigger portion and the second side surface trigger portion are arranged at a certain distance in the height direction Z, thereby effecting bending deformation of the side surface portion in the usage state of the packaging box. Therefore, it is possible to effectively protect the contents.

  As described above, according to the present invention, it is possible to provide a packaging box that can be disposed of easily and compactly while suppressing deformation in the state of use. Therefore, various articles including pharmaceuticals and foods are enclosed. There is a possibility of being suitably used for a packaging box.

1, 201, 301 Packaging box 2 Blank sheet 4 Peripheral wall portion 5 Front portion 5a Pressed portion 6 Back portion 7 First side portion 8 Second side portion 9 Fixed surface portion 10,310 First end surface portion 11 Inner lid 12 Outer lid 13 , 14 Side flap 20, 320 Second end surface portion 21 Inner lid 22 Outer lid 23, 24 Side flap 30 Cut line 41 First side trigger portion 42 Second side trigger portion 44, 45 Bend suppressing portion 50 Bend promoting portion 60 End face trigger portion 62, 64, 66 Cut 261 First end face trigger part 262 Second end face trigger part 311, 321 Lid part 312, 322 Insertion piece F1 to F14 Crease line X Back and forth direction (first direction)
Y Lateral direction (second direction)
Z height direction (3rd direction)

Claims (11)

A front wall portion and a back wall portion facing the first direction, and a peripheral wall portion having a pair of side surfaces facing the second direction perpendicular to the first direction;
A first end surface portion that closes an open end portion of the peripheral wall portion on one end side in a third direction perpendicular to the first direction and the second direction;
A second end surface portion that closes an open end portion of the peripheral wall portion on the other end side in the third direction, and a packaging box comprising:
In the central part of the first direction on each surface of the pair of side parts, a concave or convex side trigger part is provided on a part of the total length in the third direction,
A packaging box, wherein a concave or convex end surface trigger portion is provided at a part of the entire length in the second direction at a central portion in the first direction on the surface of the second end surface portion. The side trigger portion includes first and second side trigger portions that are spaced apart from each other in the third direction and formed to extend in the third direction, respectively.
On each surface of the pair of side surface portions, the first side surface trigger portion is disposed on one side across the central portion in the third direction, and the second side surface trigger portion is disposed on the other side. The packaging box according to claim 1.   A concave or convex bending suppression portion extending in the first direction is provided in a portion between the first side surface trigger portion and the second side surface trigger portion on each surface of the pair of side surface portions. The packaging box according to claim 2, wherein the packaging box is characterized.   4. The packaging box according to claim 3, wherein the bending suppressing portion is provided on each of one side and the other side of the surface of each of the pair of side surface portions sandwiching the central portion in the third direction. .   The cutting line for opening the opening edge part of the said surrounding wall part is provided only in the 1st end surface part side among the said 1st end surface part and the said 2nd end surface part, The Claim 1 to Claim 2 characterized by the above-mentioned. 5. The packaging box according to any one of 4 above.   The end surface trigger portion extends linearly along the second direction from a portion between one end and the center in the second direction on a surface of the second end surface portion to a portion between the other end and the center. The packaging box according to any one of claims 1 to 5, wherein the packaging box is formed.   The end face trigger portion extends from the portion between the one end and the center in the second direction on the surface of the second end face portion so as to expand in a V shape toward the one end side in the second direction. And a second end surface trigger portion extending so as to expand in a V shape from the portion between the other end and the center in the second direction on the surface of the second end surface portion toward the other end side in the second direction The packaging box according to any one of claims 1 to 5, wherein: The second end surface portion includes an inner lid connected to an end portion in the third direction in either the front portion or the back portion, and an end in the third direction in either the front portion or the back portion. An outer lid connected to the part,
The outer lid is provided with the end face trigger portion,
The perforated cut or the straight half cut extending in the second direction is formed in a portion of the inner lid that overlaps the end face trigger portion. Item 1. A packaging box according to item 1.   The packaging box according to claim 8, wherein the inner lid is bonded to the outer lid only at a portion closer to the base end side than the notch or the half cut in the first direction. The first end surface portion and the second end surface portion each have a pair of side flaps that are continuous with the end portions in the third direction of the pair of side surface portions, and a lid that is overlapped on the outside of the pair of side flaps. ,
Each of the side flaps is formed with a perforated cut or a linear half cut extending in the second direction at the central portion of the first end surface portion and the second end surface portion in the first direction. The packaging box according to any one of claims 1 to 9, wherein the packaging box is provided.   In a portion of each surface of the pair of side surface portions adjacent to the boundary with the side flap of the second end surface portion, V extends from the center portion in the first direction toward the second end surface portion side in the third direction. The packaging box according to claim 10, wherein a concave or convex bending promoting portion extending so as to expand in a letter shape is provided.

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