JP2019112133A - Packaging box - Google Patents

Abstract

To provide a packaging box in which dust can be made difficult to get inside and a finger can be easily put on the handle.SOLUTION: A packaging box 1 includes inner flaps 3 and 19 and outer flaps 4 and 20 provided at the open ends 2a and 2b of a cylindrical body 2, an outer center folding part 9 provided on the outer flaps 4 and 20 and swinging a tip to fold inward and an inner center folding part 8 which is an inner flaps 3 and 19 positioned at a part corresponding to the outer folding part 9 and swinging its tip part to fold inward. the outer half folding part 9 and the inner half folding part 8 are in the state before the outer half folding part 9 and the inner half folding part 8 are respectively folded inward, a distal direction from a proximal end to a distal end of the outer center folding part 9 and a proximal direction from the tip part to the proximal end of the inner center folding part are parallel to each other, a part of the outer folding part 9 folded inward contacts a surface 8c of the inner folding part 8.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging box.

  Conventionally, there is known a packaging box in which a top surface and a bottom surface are closed by overlapping and bonding a pair of outer flaps on the outer surface of the pair of inner flaps, for example (see, for example, Patent Document 1).

  This packaging box is provided with an opening for hooking a finger on the outer flap, and the opening is closed by the inner flap. As a result, it is possible to hold the packaging box by hooking a finger on the step portion of the opening provided in the outer flap and to prevent the entry of dust into the packaging box by the inner flap.

Patent No. 5608438 gazette

  In the handle of the conventional packaging box, there is a problem that it is difficult to hold a small portion where the finger is caught because the finger is only hooked on the step portion formed by the opening of the outer flap.

  SUMMARY OF THE INVENTION In view of the above, the present invention has an object to provide a packaging box in which dust can be made difficult to enter inside and a finger can be easily put on the handle.

[1] In order to achieve the above object, the packaging box of the present invention is
A cylindrical body (for example, the body 2 of the embodiment, hereinafter the same);
An inner flap (for example, a top inner surface flap 3 of the embodiment) which is provided by being bent to the inside of the trunk with the opening end edge of the trunk (for example, the opening edges 2a and 2b of the embodiment, hereinafter the same). Bottom flaps 19. The same shall apply hereinafter.
Outer flaps (for example, top outer flap 4 in the embodiment, bottom outer flap 20, etc.) which are provided at the open end edge of the body and are bent inward to the inside of the body to overlap the inner flaps. Identical) and
It is formed inside the incision by the incision (for example, the incision 16 of the embodiment, hereinafter the same) provided in the outer flap, and the outside is folded inside by swinging the tip. (E.g., the outer center fold 9 in the embodiment, hereinafter the same) and
The inner flap, which is the inner flap, is positioned at a portion corresponding to the outer fold, and swings its tip to fold it inward (for example, the inner fold 8 in the embodiment). .)When,
Equipped with
The outer half-folded portion and the inner half-folded portion are in the tip direction from the base end to the tip of the outer half-folded portion in a state before the outer half-folded portion and the inner half-folded portion are respectively folded inward. And the proximal direction from the distal end to the proximal end of the inner center fold portion is parallel to each other,
It is characterized in that a part of the outer side folded part folded inside is in contact with the surface (for example, the surface 8c of the embodiment, hereinafter the same) of the inner side folded part.

  According to this configuration, it is possible to suppress the entry of dust into the inside of the packaging box by the outer side folded portion and the inner side folded portion. In addition, when a finger is inserted into the opening of the outer flap formed by the outer folded portion being bent inward, the opening is widened so as to further press the inner folded portion that was in contact with the outer folded portion. While the user can hold the packaging box firmly along the outer fold. As a result, even when a relatively heavy item is stored in the packaging box, the user can firmly grasp the handle portion formed by the outer center fold.

  [2] Further, in the present invention, the outer half-folded part is a plurality of divided pieces continuously connected via a fold line parallel to the base edge of the outer half-folded part (for example, the first example of the embodiment It is preferable to be comprised by the division | segmentation piece 6, the 2nd division | segmentation piece 7. Below the same.

  According to this configuration, a force is generated between the split pieces such that the split pieces bent inward tend to be separated from each other by the restoring force. For this reason, the outer folding portion and the inner folding portion appropriately engage with each other in an attempt to push back the inner folding portion, which similarly tries to close the opening of the inner flap by the restoring force, by the restoring force of the divided pieces. The closed state can be maintained.

  In addition, since the plurality of divided pieces are bent inward, the user who grips the outer center folding portion can easily apply the load of the packaging box to the palm through the tip of the outer center folding portion, and the outer center folding portion can be easily You can put your hand on

  Also, the openings formed in the outer flaps and the inner flaps by the outer folds and the inner folds are preferably smaller from the viewpoint of dust intrusion prevention, but the user's palm may be inserted as a handle Some size is desirable considering it. Then, in order to prevent the inner folded part from opening as much as possible, it is preferable that the distance from the proximal end of the outer folded part to the part that first contacts the inner folded part be as short as possible.

  However, when the front end of the outer side fold is configured to abut on the surface of the inner side fold, if the opening of the outer flap is enlarged and the length of the outer side fold is shortened, the notch and the outer side fold It is necessary to cut off the portion between the end of the part and a relatively large amount of dust generated during the manufacturing process.

  On the other hand, if the outer half-folded portion is composed of a plurality of divided pieces as in the present invention described above, there is no need to engage the surface of the inner half-folded portion at the tip of the outer half-folded portion. The occurrence can be reduced.

  [3] Further, in the present invention, the cut portion provided in the outer flap may be U-shaped.

[4] In the present invention,
The packaging box is a bag-in-box type packaging box that accommodates an inner bag with a spout and includes a top surface and a bottom surface.
The top surface is constituted by the inner flap and the outer flap,
The top surface is provided with a spout corresponding portion (for example, the spout 5 according to the embodiment, hereinafter the same) for causing the spout to project.
The side where the contents of the inner bag are poured out from the pouring outlet is the front, by tilting the packaging box,
The outer center fold and the inner center fold are disposed at the rear opposite to the front with respect to the spout corresponding portion,
It is preferable that a proximal end of the inner folded portion be positioned forward of the distal end.

  According to this configuration, it is possible to easily tilt the packaging box and pour out the contents from the outlet of the inner bag by putting the hand on the outer center fold located behind the outlet protruding from the packaging box. .

[5] In the present invention,
The packaging box is a bag-in-box type packaging box that accommodates an inner bag with a spout and includes a top surface and a bottom surface.
The bottom surface is constituted by the inner flaps and the outer flaps,
The top surface is provided with a spout corresponding portion for causing the spout to protrude.
The packaging box is inclined such that the side to which the contents of the inner bag are poured out from the pouring outlet is the front, and the direction opposite to the front is the rear,
The bottom surface is provided with a plurality of the outer side folds and the inner side folds,
It is preferable that a distal end of the inner folded portion is located on the rear side, and a proximal end of the inner folded portion is located on the front side.

  According to this configuration, when the packaging box is inclined to extract the contents from the inner bag, the position of the handle portion on the bottom can be selected according to the remaining amount of the contents of the inner bag. In particular, in the case where a plurality of the outer circumferentially-folded portions and the inner circumferentially-folded portions are provided at intervals in the front-rear direction instead of in the left-right direction, extraction can be appropriately performed according to the remaining amount of contents.

  [6] Further, in the present invention, the outer center fold portion is formed in the outer flap by the cut portion provided with a connection portion (for example, the connection portion 16a of the embodiment, hereinafter the same). Is preferred.

  According to such a configuration, before the outer center fold portion is flush with the outer flap and there is no opening before the outer center fold portion is folded inward to form a handle, there is no problem before forming the handle. It is possible to prevent the entry of dust, dirt and the like into the packaging box in the state.

[7] Moreover, the packaging box of the present invention is
A cylindrical body,
An inner flap which is provided by being bent inward of the body at the open end edge of the body;
An outer flap which is an open end edge of the body and is bent to the inside of the body so as to overlap the inner flap;
An outer center-folded portion which is formed on the inner side of the notch by the notch provided in the outer flap and swings the tip to be folded inward;
Equipped with
The outer half-folded portion is composed of a plurality of divided pieces continuously connected via a fold line parallel to the base edge of the outer half-folded portion,
It is characterized in that a part of the outside folded part folded inward is in contact with the surface of the inside flap.

  According to this configuration, it is possible to suppress the entry of dust into the inside of the packaging box by the outer half fold and the inner flap. Also, when a finger is inserted into the opening of the outer flap formed by the outer folded portion being bent inward, the opening is expanded so as to further push the inner flap in contact with the outer folded portion further inward, The user can grip the packaging box firmly along the outer center fold. As a result, even when a relatively heavy item is stored in the packaging box, the user can firmly grasp the handle portion formed by the outer center fold.

  In addition, a force is generated between the split pieces such that the split pieces bent inward tend to be separated from each other by the restoring force. For this reason, it is possible to maintain the closed state by appropriately engaging the outer folding portion and the inner flap in an attempt to push back the inner flap, which similarly tries to close the opening by the restoring force, by the restoring force of the divided pieces. it can.

  In addition, since the plurality of divided pieces are bent inward, the user who grips the outer center folding portion can easily apply the load of the packaging box to the palm through the tip of the outer center folding portion, and the outer center folding portion can be easily You can put your hand on

  In addition, the opening formed in the outer flap by the outer center fold and the inner flap is preferably smaller from the viewpoint of preventing dust incursion, but it is large to some extent in consideration of insertion of the user's palm as a handle. Is desired. And, in order to prevent the inner flaps from opening as much as possible, it is preferable that the distance from the proximal end of the outer folding portion to the portion which first contacts the inner flaps be as short as possible.

  However, when the front end of the outer half fold is configured to abut on the surface of the inner flap, if the opening of the outer half flap is enlarged and the length of the outer half fold is shortened, It is necessary to cut off the portion between the tip and the tip, and a relatively large amount of dust is generated during the manufacturing process.

  On the other hand, if the outer half-folded portion is composed of a plurality of divided pieces as in the present invention described above, there is no need to engage the surface of the inner half-folded portion at the tip of the outer half-folded portion. The occurrence can be reduced.

Explanatory drawing which shows the packaging box of this invention. Explanatory drawing which shows the outer side fold part and inner side fold part of this embodiment in a cross section. Explanatory drawing which expands and shows the packaging box of this embodiment.

  Embodiments of the packaging box of the present invention will be described with reference to the drawings. The packaging box of the present embodiment is a bag-in-box type packaging box that accommodates an inner bag provided with a spout. As shown in FIG. 1, the packaging box 1 of the present embodiment includes a square cylindrical trunk 2 having an open end edge 2 a on the top surface side and an open end edge 2 b on the bottom surface side.

  At the opening edge 2a on the top surface side, a pair of in-surface flaps 3, 3 provided on a pair of sides facing each other (see the fold line L7 in FIG. 3) and the opening edge 2a on the top surface A pair of out-of-top surfaces provided on a pair of sides (see fold line L8 in FIG. 3) adjacent to the sides (see fold line L7 in FIG. 3) on which the in-plane flaps 3 are provided A flap 4, 4 and a spout 5 for spouting out of the spout of the inner bag provided on and accommodated in one of the top outside flaps 4 are provided.

  As shown in FIG. 2, the other outer upper surface flap 4 is formed by being cut into a U-shape (including a C-shape), and the cut inner side is turned inward through the fold line L1. A first split piece 6 formed by moving and folding, and a second split piece 7 continuously connected to the tip end 6a of the first split piece 6 via a fold line L2 and further folding inward And. The fold line L2 is parallel to the fold line L1 as the base end edge of the outer center fold 9. Here, the fold line L1 and the fold line L2 may be parallel not only in a strict sense, but also substantially parallel.

  The in-surface flap 3 is formed in a U-shape (including a C-shape) by being positioned at a portion (overlapping area) corresponding to the first divided piece 6 and the second divided piece 7 The inner side is provided with the inner side folding part 8 formed by swinging inward and folding it inside. By bending the inner center folding portion 8 inward, it is possible to fold the first divided piece 6 and the second divided piece 7 inward. In the present embodiment, the outer split portion 9 is configured by the first divided piece 6 and the second divided piece 7.

  The base end 6b of the first divided piece 6 is located on the same side as the tip 8a which is a free end of the inner center folding portion 8 swinging with respect to the tip 6a. A distal end 6 a as a swinging free end of the first divided piece 6 is located forward of the proximal end 6 b on the same side as the proximal end 8 b of the inner center fold 8. The distal end 8a of the inner folded portion 8 is located rearward with respect to the proximal end 8b.

  The surface 7 c of the second divided piece 7 folded inward is in contact with the surface 8 c of the inner folded portion 8. Here, the surfaces 7 c and 8 c are surfaces continuous with the outer surface of the packaging box 1 and different from the inner surface of the packaging box 1.

  FIG. 3 shows a developed state of the packaging box 1 of the present embodiment. As shown in FIG. 3, the packaging box 1 of the present embodiment is assembled by bending one corrugated cardboard 10 which is punched out of one corrugated cardboard base paper.

  The corrugated paperboard 10 includes a rectangular right side plate 11 constituting the body portion 2, a rectangular front plate 12 continuously connected to the side edge of the right side plate 11 via a fold line L 3, and the side of the front plate 12. A rectangular left plate 13 continuously connected to the edge through a fold line L4, a rectangular rear plate 14 connected to a side edge of the left plate 13 through a fold line L5, and a side of the rear plate 14 And an adhesive piece 15 continuously connected to the edge through a fold line L6 and adhered to the right side plate 11.

  In the upper edges of the right side plate 11 and the left side plate 13, top surface in-cover flaps 3, 3 are respectively provided in a row via fold lines L7, L7. Outside top surface flaps 4 and 4 are continuously provided on upper edges of the front plate 12 and the rear plate 14 via a fold line L8. The top outer flap 4 continuously connected to the upper edge of the front plate 12 is provided with a breakable spout 5 for making the break out of the spout of the inner bag accommodated.

  A notch formed in a U-shape (including a C-shape) so that the folding line L1 is located below in FIG. An outer center fold 9 consisting of the first divided piece 6 and the second divided piece 7 is formed by 16. In addition, the cutting part 16 is not completely cut | disconnected but has the connection part 16a connected partially.

  In the state before using the 1st division piece 6 and the 2nd division piece 7 as a handle by this connection part 16a, the 1st division piece 6 and the 2nd division piece 7 are not folded inside, but the top face Since the opening is not formed in the outer flap 4, it is possible to prevent the entry of dust, dirt, etc. into the packaging box 1 before using the handle.

  When the packaging box 1 is assembled, the top in-plane flap 3 is positioned in a portion (overlapping area) corresponding to the first division 6 and the second division 7 of the top outside flap 4 A letter-shaped incision 17 is provided. The incised portion 17 extends to the tip of the in-plane flap 3, and the inward portion which can be bent and bent inward via the fold line L 9 between the incised portion 17 and the abutment edge of the in-plane flap 3 The half 8e of the center folding part 8 is comprised. When the packaging box 1 is assembled, the two halves 8e, 8e function as one inner fold 8.

  In addition, when the spout of the inner bag is made to project from the cut-out portion 5 for the spout (the corresponding portion for the spout) provided on the out-of-top flap 4 on the in-top flap 3, the in-top flap 3 A cutaway portion 18 is provided so as not to get in the way. The top surface inward flap 3 is L-shaped by the notch 18. Further, the flaps 3 in the upper surface both have a symmetrical shape in the developed view of FIG.

  Bottom flaps 19, 19 are connected to the lower edge of the right side plate 11 and the left side plate 13 via fold lines L10, L10, respectively. Bottom external flaps 20 and 20 are connected to the lower edge of the front plate 12 and the rear plate 14 via fold lines L11 and L11, respectively.

  In the bottom outer flap 20 continuously provided at the lower edge of the front plate 12, a notch 16 cut in a U-shape (including a C-shape) so that the folding line L12 is positioned downward in FIG. Thus, the first divided piece 6 and the second divided piece 7 are formed. The second split piece 7 is connected to the end 6 a of the first split piece 6 so as to be able to swing freely via a fold line L13. Further, like the top surface, the cut portion 16 on the bottom surface is not completely cut but has a partially connected connection portion 16a.

  In the bottom outer flap 20 continuously connected to the lower edge of the back plate 14, a notch 16 cut in a U-shape (including a C-shape) so that the folding line L14 is positioned at the upper side in FIG. Thus, the first divided piece 6 and the second divided piece 7 are formed. The second split piece 7 is connected to the end 6 a of the first split piece 6 so as to be able to swing freely via a fold line L <b> 15. Further, the cut portion 16 provided in the bottom outer flap 20 is not completely cut but has a partially connected connection portion 16a.

  According to the connection portion 16a of the bottom external flap 20 constituting the bottom, the first divided piece 6 and the second divided piece 7 are in a state before using the first divided piece 6 and the second divided piece 7 as a handle. Since the opening is not formed inside the top outside flap 4 because it is not folded inside, it is possible to prevent the intrusion of dust, dirt, etc. into the inside of the packaging box 1 before using the handle.

  The bottom inner flap 19 is J-shaped so as to be located in a portion (overlapping region) corresponding to the first divided piece 6 and the second divided piece 7 of the top outer flap 4 when the packaging box 1 is assembled. The incised portion 17 and the tip end edge of the top in-plane flap 3 swing inward through the fold line L16 to form a half 8e of the inward folded portion 8 which can be bent. When the packaging box 1 is assembled, the two halves 8e, 8e function as one inner fold 8.

  In order to assemble the corrugated paperboard 10 configured as described above, first, it is bent along the fold lines L3 to L6, and the right side plate 11, the front plate 12, the left side plate 13 and the rear plate 14 And bond the adhesive piece 15 to the right side plate 11. Next, the bottom inner flap 19 is bent inward at a right angle through the fold line L10. Then, the bottom outer flap 20 is bent at a right angle inward through the fold line L11, and the inner bottom flap 19 and the bottom outer flap 20 are bonded to close the bottom of the trunk 2. At this time, care is taken not to bond the first split piece 6 and the second split piece 7 to the inner center fold portion 8.

  Next, the inner bag is accommodated in the body 2. Then, the in-plane flap 3 is bent at a right angle inward through the fold line L7, and then the out-of-plane flap 4 is bent at a right angle inward through the fold line L8 to form the in-plane flap 3 and the outside surface. The flap 4 is adhered. At this time, care is taken not to bond the first split piece 6 and the second split piece 7 to the inner center fold portion 8. In addition, if necessary, the spouted portion 5 for outlet for outlet provided on the top outside flap 4 continuously connected to the upper edge of the front plate 12 is broken, and the outlet for the inner bag not shown is the packaging box 1. Exposed to the outside of the

  Thus, the packaging box 1 of the present embodiment is assembled.

  When using the packaging box 1 of the present embodiment, the packaging box 1 is inclined to pour out the contents of the inner bag from the spout. When the packaging box is inclined, the side to which the contents of the inner bag are poured out from the pouring outlet is the front, and the opposite side to the front is the rear, and the outer center folding portion 9 and the inner center folding portion 8 Is located behind the.

  According to the packaging box 1 of the present embodiment, as shown in FIG. 2, the outer split 9 and the inner fold 8 support each other to form the first split piece 6 and the outer fold 9. The opening formed by bending the second divided piece 7 inward can be closed, and the opening area of the top outer flap 4 and the bottom outer flap 20 can be reduced. For this reason, it is possible to suppress the entry of dust, dirt and the like into the packaging box 1.

  When a finger is inserted into the opening of the top outer flap 4 and the bottom outer flap 20 formed by bending the first divided piece 6 and the second divided piece 7 inward, the surface 7 c of the second divided piece 7 is obtained. The user firmly holds the packaging box along the first split piece 6 and the second split piece 7 while widening the opening of the out-of-plane flap 4 so as to further press the inward middle fold 8 in contact with the inner side. You can grab one.

  As a result, even when a relatively heavy item is accommodated in the packaging box 1, the user can handle the handle composed of the outer side folding portion 9 including the first divided piece 6 and the second divided piece 7. Can be held firmly and the contents can be taken out from the pouring outlet relatively easily. In addition, since the portion to be gripped increases, the load applied to the palm can be dispersed, and the burden on the user can be reduced.

  Furthermore, when the user inserts a finger, the user can hold the outer folding portion 9 only by pushing in only the inner folding portion 8, so the outer folding portion along with the inner folding portion 8 The finger can be easily inserted as compared with those in which the finger can not be inserted without pushing 9 inward.

  Further, in the packaging box 1 of the present embodiment, the outer half-folded portion 9 is composed of the first divided pieces 6 and the second divided pieces 7, and two outer half-folded portions 9 are spaced apart in the front-rear direction on the bottom surface. Is formed. Thereby, when the packaging box 1 is inclined and the contents are poured out from the inner bag, it is possible to select the position of the outer side folded part 9 of the bottom to be used according to the remaining amount of the contents of the inner bag, The contents can be dispensed appropriately according to the remaining amount of the contents.

  In addition, although the square cylindrical trunk | drum 2 was demonstrated in this embodiment, the trunk | drum of this invention should just be cylindrical, and may be another shape, for example, hexagonal cylindrical.

  Further, in the present embodiment, although the top and bottom surfaces of the packaging box 1 are both closed by the inner flaps and the outer flaps, the packaging box of the present invention has at least one of the top and bottom surfaces. One or the other may be closed by the inner flap and the outer flap, for example, only one of the top surface and the bottom may be closed by the inner flap and the outer flap, and the other may be another closed structure. . As another closure structure, for example, there is a structure in which four flaps support and close each other by inserting one side edge of the flap into the other side of the other side edge of the adjacent flap.

  Moreover, although C-shaped cut part 16 was demonstrated in FIG.1 and FIG.3 as this embodiment, the cut part of this invention is U-shaped (U-shaped, C-shaped, V-shaped) The shape of the cut portion may be, for example, a U-shape, a V-shape, a J-shape, or a U-shape. In the present invention, the U-shape refers to a part that is cut away so as to connect with the outer flap through the fold line L1, and the shape is not limited as long as the outer center fold can be formed. However, for example, it is used as a concept including shapes such as U-shape, C-shape, V-shape, J-shape and U-shape.

  Moreover, in this embodiment, although the thing by which the both ends were connected to the both ends of the notch part 16 was demonstrated in the fold line L1, the fold line L1 is not restricted to this, for example, cuts one end of the fold line L1. One end of the insertion portion 16 may be connected, and the other end of the fold line L1 may be connected to the midpoint of the cut portion 16. Alternatively, both ends of the fold line L1 may be respectively connected to two intermediate points of the incision portion 16.

  Further, in the present embodiment, the J-shaped cutting portion 17 has been described with reference to FIGS. 1 and 3, but the shape of the cutting portion 17 is not limited to the J-shape. For example, L-shaped and U-shaped , H-shaped.

  The incision 17 may extend to the tip or the left end or the right end of the flap 3 in the top surface or the flap 19 in the bottom, and swings inward through the fold line L9 or the fold line L16 to form the inward fold. It is sufficient if 8 can be bent. At this time, one end of the fold line L9 and one end of the fold line L16 may be positioned at either one end of the cut portion 17 or at the midpoint of the cut portion 17.

  Moreover, although the thing which provided the outer side folding part 9 and the inner side folding part 8 in any of a top surface and a bottom face was demonstrated by the packaging box 1 of this embodiment, the outer side folding part 9 and the inside center folding part 8 May be provided on at least one of the top surface and the bottom surface, and the number of handles on the bottom surface may be one.

  Moreover, in this embodiment, although the thing by which the outer side folding part 9 is comprised with two divisions of the 1st division piece 6 and the 2nd division piece 7 was demonstrated, the outer side folding part of this invention The invention is not limited to this, and for example, it may be provided as an outer center folded portion of one flap without providing divided pieces, or as an outer center folded portion provided with three or more divided pieces.

  Moreover, in this embodiment, although the thing in which the two outer side folding parts 9 formed the space | interval in the front-back direction at the bottom face was demonstrated, the outer side folding part of the bottom face was limited to what has a space in the front-back direction. Alternatively, for example, intervals may be provided in the left-right direction. Also by this, when the packaging box is inclined and the contents are poured out from the inner bag, the user can select the position of the outer center fold of the bottom surface which is easy to hold.

DESCRIPTION OF SYMBOLS 1 Packaging box 2 Barrel part 2a Opening edge 2b on the top surface side Opening edge 3 on the bottom surface 3 Top surface flap 4 Top surface outside flap 5 Cutout part for 6 outlets The first divided piece 6a Tip 6b Base end 7 Second Divided piece 7c surface (outside)
7d back side (inner side)
8 Inner Folded Part 8a Tip 8b Base End 8c Surface (External Surface)
8d back side (inner side)
8e half 9 outer half-folded portion 10 corrugated paperboard 11 right side plate 12 front plate 13 left side plate 14 rear plate 15 bonding piece 16 cut portion 16 cut portion 16 a connection portion 17 cut portion 18 cut portion 19 bottom inner flap 20 bottom outer flap L1 L16 fold line

Claims (7)

A cylindrical body,
An inner flap which is provided by being bent inward of the body at the open end edge of the body;
An outer flap which is an open end edge of the body and is bent to the inside of the body so as to overlap the inner flap;
An outer center-folded portion which is formed on the inner side of the notch by the notch provided in the outer flap and swings the tip to be folded inward;
The inner flap, the inner flap being positioned at a portion corresponding to the outer fold and having its tip swinged to fold inward;
Equipped with
The outer half-folded portion and the inner half-folded portion are in the tip direction from the base end to the tip of the outer half-folded portion in a state before the outer half-folded portion and the inner half-folded portion are respectively folded inward. And the proximal direction from the distal end to the proximal end of the inner center fold portion is parallel to each other,
A packaging box characterized in that a part of the outside folded part folded inside is in contact with the surface of the inside folded part. It is a packaging box of Claim 1, Comprising:
The packaging box characterized in that the outer side folding part is constituted by a plurality of divided pieces which are continuously connected via a folding line parallel to a base edge of the outer side folding part. It is the packaging box of Claim 1 or Claim 2, Comprising:
The packaging box characterized in that the cut portion provided in the outer flap is U-shaped. A packaging box according to any one of claims 1 to 3, which is:
The packaging box is a bag-in-box type packaging box that accommodates an inner bag with a spout and includes a top surface and a bottom surface.
The top surface is constituted by the inner flap and the outer flap,
The top surface is provided with a spout corresponding portion for causing the spout to protrude.
The side where the contents of the inner bag are poured out from the pouring outlet is the front, by tilting the packaging box,
The outer center fold and the inner center fold are disposed at the rear opposite to the front with respect to the spout corresponding portion,
The packaging box characterized in that a base end of the inner side folding part is located in front of the tip end. It is a packaging box in any one of Claims 1-4, Comprising:
The packaging box is a bag-in-box type packaging box that accommodates an inner bag with a spout and includes a top surface and a bottom surface.
The bottom surface is constituted by the inner flaps and the outer flaps,
The top surface is provided with a spout corresponding portion for causing the spout to protrude.
The packaging box is inclined such that the side to which the contents of the inner bag are poured out from the pouring outlet is the front, and the direction opposite to the front is the rear,
The bottom surface is provided with a plurality of the outer side folds and the inner side folds,
The packaging box according to claim 1, wherein a tip end of the inner half-folded portion is located on the rear side, and a base end of the inner half-folded portion is located on the front side. It is a packaging box in any one of Claims 1-5, Comprising:
A packaging box characterized in that the outer center fold portion is formed in the outer flap by the cut portion having a connection portion. A cylindrical body,
An inner flap which is provided by being bent inward of the body at the open end edge of the body;
An outer flap which is an open end edge of the body and is bent to the inside of the body so as to overlap the inner flap;
An outer center-folded portion which is formed on the inner side of the notch by the notch provided in the outer flap and swings the tip to be folded inward;
Equipped with
The outer half-folded portion is composed of a plurality of divided pieces continuously connected via a fold line parallel to the base edge of the outer half-folded portion,
A packaging box characterized in that a part of the outside folded part folded inside is in contact with the surface of the inside flap.