JP5352293B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box.

  Conventionally, as packaging boxes that are folded and assembled from corrugated paper, cardboard, or the like, there are those described in Patent Documents 1 and 2.

  The packaging box described in Patent Document 1 is such that the height (depth) of the packaging box is lower than the content height over the entire circumference, and is accommodated in the packaging box from the outside of the entire circumference of the packaging box. The contents can be seen and the display effect is enhanced. In this packaging box, a step portion protruding inward is provided on the inner surface of the folding plate of the lid body that covers the packaging box, and when the packaging body is covered with the lid body, the step portion of the lid body is the side plate of the packaging box. It is supported on the upper edge and does not deform the contents.

  In the packaging box described in Patent Document 2, the height of the left and right side plates of the packaging box is made lower than the content height at the center of the upper edge of the side plates, and the contents can be seen from the left and right outside of the packaging box. I am doing so. In this packaging box, the lid that covers the packaging box is supported by being supported on the upper edges of the front plate and the rear plate of the packaging box, and does not deform the contents by pressing.

Shokai 57-196624 61-35129

  Although the packaging box described in Patent Document 1 has a high display effect of the contents contained in the packaging box, the lid structure is complicated in order to prevent the lid placed on the packaging box from hitting the contents. become.

  In the packaging box described in Patent Literature 2, although the lid placed on the packaging box does not hit the contents, all of the upper edges of the front and rear plates of the packaging box, and both ends of the upper edges of the left and right side plates There is a limit to improving the display effect of the contents by blocking the contents from outside in a wide range.

  An object of the present invention is to enhance the display effect of contents contained in a packaging box in the packaging box, and to prevent the lid placed on the packaging box from hitting the contents.

The invention of claim 1 is a packaging box comprising a front plate and a rear plate standing on one opposing side of the bottom plate, and side plates on both sides standing on the other opposing side of the bottom plate, from standing height of the rear plate lower standing height of the side plates, both end corners of each of the upper edge of the front plate and the rear plate, Ri Na has an oblique border portion that intersects the upper edge of the side plates, A front plate and a rear plate are connected to one of the opposite sides of the bottom plate through folds, and a front plate turn-up portion through a fold at a portion excluding both corners of each upper edge of the front plate and the rear plate. And a rear plate folding portion, and a latching claw that projects from each lower edge of the front plate folding portion and the rear plate folding portion and can be engaged with a latching portion provided along one opposite side of the bottom plate A side plate lower than the standing height of the front plate and the rear plate is connected to the other opposite side of the bottom plate via a fold, and a side plate turn-up portion is connected to the upper edge of each side plate via a fold. There is a locking claw that protrudes from the lower edge of each side plate folded portion and can be engaged with a locking portion provided along the other opposite side of the bottom plate, and at both corners of each upper edge of the front and rear plates The front and rear square plates are connected to each other through a fold that obliquely intersects with the side edges of the front and rear plates to form a diagonal edge. In each of these, a folding tongue piece is provided continuously through a fold .

FIG. 1 is a perspective view showing a packaging box. FIG. 2 is a perspective view showing a display state in which contents are stored in a packaging box. FIG. 3 is a plan view showing a developed state of the packaging box. FIG. 4 is a schematic diagram showing the assembly process of the packaging box. FIG. 5 is a schematic diagram showing the assembly process of the packaging box. FIG. 6 is a perspective view showing the assembly process of the packaging box.

  The packaging box 10 shown in FIG. 1 can accommodate the contents, and can be used with a lid 60 attached to the packaging box 10. The lid 60 includes a front plate 62 and a rear plate 63 (not shown) standing on one opposite side of the top plate 61, and left and right side plates 64 and 64 (not shown) standing on the other opposing side of the top plate 61. And any structure can be adopted. FIG. 2 shows a display state of the packaging box 10 containing the contents 100 such as food bottles and detergent bottles. Hereinafter, the structure of the packaging box 10 will be described. In this specification, with the packaging box 10 placed on a horizontal plane, one orthogonal to the horizontal plane is referred to as front and back, the other is referred to as left and right, and the upper side along the vertical direction orthogonal to the horizontal plane is The lower part is called the lower part.

  As shown in FIGS. 1 and 2, the packaging box 10 includes a front plate 12 (not shown in FIGS. 1 and 2) and a rear plate 13 that stand on one opposing side of the bottom plate 11, and the other opposing side of the bottom plate 11. And left and right side plates 22, 22 standing upright. And the standing height H2 of the side plates 22 and 22 of the both sides is lower than the standing height H1 of the front board 12 and the rear board 13 of the packaging box 10 (FIG. 1, FIG. 2). Further, the packaging box 10 is formed with diagonal edge portions 12B and 13B intersecting the upper edges 22A of the side plates 22 and 22 on both sides at the corners of the upper edges 12A and 13A of the front plate 12 and the rear plate 13, respectively. .

  The packaging box 10 is assembled by folding a development material as shown in FIG. 3 in which corrugated cardboard and cardboard are punched. The upper edge, lower edge, and height of each part in the developed state of cardboard are the upper edge when they constitute the upper edge of each part in the state of the packaging box in which the cardboard is assembled. What constitutes the lower edge is called the lower edge, and what constitutes the height of each part is called the height.

  In the packaging box 10, a front plate 12 and a rear plate 13 are connected to one opposite side of the bottom plate 11 via a fold line 14. The packaging box 10 has two upper portions 12A and 13A (edges opposite to the folds 14 of the front plate 12 and the rear plate 13) excluding both corners in order. The front plate folding portion 18 and the rear plate folding portion 19 via the narrow folds 15A and 15B and the narrow front plate frame piece 16 and the rear plate frame piece 17 sandwiched between the two folds 15A and 15B. Are connected. The heights of the front plate folding portion 18 and the rear plate folding portion 19 have the same dimensions as the respective heights H1 of the front plate 12 and the rear plate 13 described above.

  The front plate folding portion 18 and the rear plate folding portion 19 have their respective lower edges (edges of the front plate folding portion 18 and the rear plate folding portion 19 opposite to the front plate frame piece 16 and the rear plate frame piece 17). Are provided with tongue-like locking claws 18A and 19A that can be engaged with locking portions 40 provided at two locations along one opposite side of the bottom plate 11.

  In the packaging box 10, the side plates 22 and 22 on both sides described above are connected to the other opposing side of the bottom plate 11 via the fold line 21.

  The packaging box 10 has two folds 23A and 23B and two folds in order on each upper edge 22A of the side plates 22 and 22 on both sides (the edge opposite to the fold 21 of the side plate 22). Side plate folding portions 25, 25 on both sides are provided continuously via side plate frame pieces 24, 24 on both sides of the narrow width sandwiched between 23 A, 23 B. The height of each side plate folding portion 25 is the same as the height H2 of each side plate 22 described above. Note that the front side edge of the side plate folding portion 25 near the front plate 12 is cut out from the front side edge of the side plate 22 near the front plate 12 by the folding thickness of the front plate 12 and the front square plate 32 described later. The rear side edge of the side plate folding portion 25 near the rear plate 13 is cut out from the rear side edge near the rear plate 13 of the side plate 22 by the folding thickness of the rear plate 13 and the rear square plate 33 and shortened. .

  Each side plate folding part 25 protrudes from each lower edge thereof (an edge part opposite to the side plate frame part 24 of the side plate folding part 25), and is provided at two locations along the other opposite side of the bottom plate 11. A tongue-shaped locking claw 25A that can be engaged with the stopper 50 is provided.

  The packaging box 10 obliquely intersects the side edges 12C and 13C of the front plate 12 and the rear plate 13 at both end corners of the upper edges 12A and 13A of the front plate 12 and the rear plate 13, respectively. , 13B is formed, and the front square plate 32 and the rear square plate 33 are connected through two fold lines 31, 31 (one fold line 31 is also possible) close to each other. The lengths H3 of the front end portions 32A and 33A of the front square plate 32 and the rear square plate 33 are substantially equal to the aforementioned height H1 of the front plate 12 and the rear plate 13. In the assembled state of the packaging box 10, the front end portions 32 </ b> A and 33 </ b> A of the front square plate 32 and the rear square plate 33 are folded inside the front plate 12 and the rear plate 13, and the front plate folded portion 18 and the rear plate folded. It is folded and held on the back side of the portion 19.

  In the packaging box 10, the folded tongue pieces 35, 35 on both sides are connected to the side edges 12 </ b> C, 13 </ b> C on both sides of the front plate 12 and the rear plate 13 via folds 34. The height H4 of each folded tongue piece is substantially equal to the aforementioned height H2 of each upper side plate 22. In the assembled state of the packaging box 10, the folded tongue pieces 35 on both sides are folded inside the side plates 22 on both sides and folded and held on the back side of the side plate folded portions 25 on both sides.

  In the packaging box 10, each of the aforementioned locking portions 40 provided along one opposing side of the bottom plate 11 has locking tongues formed on both sides of the bottom plate 11 so as to have substantially the same width as the respective locking claws 18 </ b> A and 19 </ b> A. It consists of a piece 41 and a locking hole 42 cut out and formed in the bottom plate 11 so that the tip of the locking tongue piece 41 is partitioned between one opposing side of the bottom plate 11. Further, each of the aforementioned locking portions 50 provided along the other opposite side of the bottom plate 11 has a locking tongue piece 51 cut into the bottom plate 11 so as to have substantially the same width as each locking claw 25A, and a locking tongue. It consists of a locking hole 52 cut out in the bottom plate 11 so that the tip of the piece 51 is partitioned between the other opposing side of the bottom plate 11.

The assembly structure of the packaging box 10 is as follows (FIGS. 4 to 6).
(1) First, the front plate and the rear plate portion of the packaging box of the present invention are formed. The front square plate 32 and the rear square plate 33 are respectively connected to the front plate 12 and the rear plate 13 so that the oblique edge portions 12B and 13B are formed at both corners of the upper edges 12A and 13A of the front plate 12 and the rear plate 13, respectively. (FIGS. 4A and 4B).

  (2) Fold each of the front plate folded portion 18 and the rear plate folded portion 19 from the upper edges 12A, 13A of the front plate 12 and the rear plate 13 to the inside. The front end portions 32A and 33A of the front square plate 32 and the rear square plate 33 are respectively sandwiched between the front plate 12 and the rear plate 13, and the front plate folded portion 18 and the rear plate folded portion 19 (FIG. 5 ( A)).

  (3) The front plate 12 and the rear plate 13 are folded from the fold line 14 with respect to the bottom plate 11. In the above-mentioned (2), the front plate 12 and the rear plate 13 are folded inwardly from the upper edges 12A and 13A. 11 engaging portions 40. Each of the locking claws 18A and 19A pushes and deforms the locking tongue piece 41 of the locking portion 40 and locks it in the locking hole 42. By the assembly of (1) to (3), the front plate and the rear plate portion of the packaging box of the present invention are formed.

  At this time, the front square plate 32 and the rear square plate 33 are folded inside each of the front plate 12 and the rear plate 13 in the above (1), and the front plate folded portion 18 and the rear plate folded portion 19 are further folded in the above (2). By folding, the front end portions 32A and 33A of the front square plate 32 and the rear square plate 33 are sandwiched and held on the back side of the front plate folded portion 18 and the rear plate folded portion 19 (FIG. 5B )).

  A narrow front plate frame piece 16 between the front plate 12 and the front plate folded portion 18 forms an upper edge 12A of the front plate 12 and a narrow rear portion between the rear plate 13 and the rear plate folded portion 19. The plate frame piece 17 forms the upper edge 13 </ b> A of the rear plate 13.

  (4) Next, a side plate is formed. From each side edge 12C, 13C on both sides of the front plate 12 and the rear plate 13, the folding tongue pieces 35 are folded inside the side plate along the folds 21 of the side plate (FIG. 6A).

  (5) The side plates 22 on both sides with respect to the bottom plate 11 are folded through the folds 21. Furthermore, each side plate folding | turning part 25 is folded up inside from each upper edge 22A of the folded side plate 22 on both sides. Then, the latching claws 25 </ b> A at the lower edges of the side plate folding portions 25 are engaged with the latching portions 50 of the bottom plate 11. Each locking claw 25 </ b> A pushes and deforms the locking tongue piece 51 of the locking portion 50 and locks it in the locking hole 52.

  At this time, the folded tongue pieces 35 folded inward from the side edges 12C and 13C on both sides of the front plate 12 and the rear plate 13 in the above-described (4) are sandwiched and held on the back surface side of the side plate folded portions 25. (FIGS. 6B and 6C).

  Each side plate frame piece 24 having a narrow width between each side plate 22 and the side plate folded portion 25 forms an upper edge 22A of the side plate 22.

  The packaging box 10 can be used as the packaging box 10 with a lid by containing the contents 100, and further having a lid 60 attached to the packaging box 10, and the packaging box for display 10 with the lid 60 removed at the display stage. 10 can be used for display. The content 100 is slightly lower than the height H1 (depth) of the front plate 12 and the rear plate 13 of the packaging box 10, and the front surface 101 (surface facing upward) of the content 100 accommodated in the packaging box 10 is the front plate 12. And it is positioned slightly lower than the upper edges 12A, 13A of the rear plate 13. In the content illustrated in FIG. 2, the shape of the content 100 is such that the intersection angle portion 103 between the front surface 101 and the side surface 102 (the surface in contact with the side plate 22) is an oblique edge portion 12 </ b> B of the front plate 12 and the rear plate 13. , 13B (FIG. 2).

According to this embodiment, there exist the following effects.
(a) The packaging box 10 lowers the height H2 of the side plates 22 with respect to the height H1 of the front plate 12 and the rear plate 13 of the packaging box 10, and the upper edges 12A, 13A of the front plate 12 and the rear plate 13. Diagonal edging portions 12B and 13B were formed at the corners of both ends. Accordingly, the packaging box 10 has wide upper edges 22A of the side plates 22 on both sides of the packaging box 10 and wide corners (diagonal edges 12B, 13B) of the upper edges 12A, 13A of the front plate 12 and the rear plate 13. In the range, the contents 100 are not blocked from the outside. The packaging box 10 removes the contents 100 only in a narrow range of the entire circumference of the packaging box 10 except for the corners of the upper edges 12A and 13A of the front plate 12 and the rear plate 13 (diagonal borders 12B and 13B). The display effect of the contents 100 can be improved. The entire crossing corner 103 of the front and rear surfaces 101 and 102 of the contents 100 is entirely outside the front edge 12 and the oblique edge portions 12B and 13B of the rear plate 13 and the upper edge 22A of the rear side plate 22. The contents 100 can be seen in three dimensions without being obstructed from the direction.

  (b) When the packaging box 10 is covered with the lid 60, the lid 60 is placed on the upper edges 12A and 13A of the height H1 of the front plate 12 and the rear plate 13 of the packaging box 10. And the contents 100 are not deformed by pressing.

  (c) Since the standing height H2 of the side plates 22 on both sides is lower than the standing height H1 of the front plate 12 and the rear plate 13 constituting the packaging box 10, the standing height H2 of the side plates 22 on both sides is set to the front plate 12 and Compared with the rear plate 13 having the same standing height H1, the material development dimension of the packaging box 10 can be shortened in the left-right direction including the side plates 22 on both sides, and the amount of material used can be reduced.

  (d) The packaging box 10 can be assembled only by bending each plate such as the front plate 12 and the rear plate 13 and the side plates 22 on both sides with respect to the bottom plate 11. Further, the upper edges 12A and 13A of the front plate 12 and the rear plate 13 (including the bent portions of the front square plate 32 and the rear square plate 33 (diagonal edge portions 12B and 13B)), and the upper edge 22A of the upper side plate 22 are included. Are formed by the bent portions of each plate, and the cut edges of the corrugated cardboard do not appear on the upper edges 12A and 13A, the oblique edge portions 12B and 13B, and the upper edge 22A, and the aesthetic appearance Can be improved.

  (e) The upper edges 12A, 13A of the front plate 12 and the rear plate 13 are formed by the front plate frame piece 16 and the rear plate frame piece 17, and the upper edges 22A of the side plates 22 on both sides are formed by the side plate frame pieces 24. did. The aesthetic appearance of the upper edges 12A and 13A of the front plate 12 and the rear plate 13 and the upper edges 22A of the side plates 22 on both sides can be improved.

  (f) the locking tongues 41, 51 formed by cutting the bottom plate 11 so that the locking portions 40, 50 provided on the bottom plate have substantially the same width as the locking claws 18A, 19A, 25A; The tongue pieces 41, 51 are made up of locking holes 42, 52 cut out in the bottom plate 11 so that the tips of the tongue pieces 41, 51 are partitioned between each side of the bottom plate 11. Therefore, when the packaging box 10 is assembled, the folded portions 18, 19, 25 of the front plate 12, the rear plate 13, and the side plates 22 on both sides are folded inside the front plate 12, the rear plate 13, and the side plates 22 on both sides. When they are stacked, the locking claws 18A, 19A, 25A can elastically push and deform the tips of the locking tongues 41, 51 to be immediately locked in the locking holes 42, 52, thereby improving the assemblability. When the packaging box 10 is discarded, the hooking claws 18A, 19A, 25A can be restored by turning back the folding portions 18, 19, 25 if the tips of the locking tongue pieces 41, 51 are pushed down and deformed elastically. Due to the habitual force, the packaging box 10 can be easily unfolded by being immediately removed from the locking holes 42 and 52.

  According to the present invention, in the packaging box, the display effect of the contents accommodated in the packaging box can be enhanced, and the lid placed on the packaging box can be prevented from hitting the contents.

DESCRIPTION OF SYMBOLS 10 Packaging box 11 Bottom plate 12 Front plate 13 Rear plate 12A, 13A Upper edge 12B, 13B Side edge part 14C, 13C Side edge 14 Fold 15A, 15B Fold 16 Front plate frame piece 17 Rear plate frame piece 18 Front plate folding part 18A Locking claw 19 Rear plate folding portion 19A Locking claw 21 Fold 22 Side plate 22A Upper edge 23A, 23B Fold 24 Side plate frame piece 25 Side plate folding portion 25A Locking claw 31 Fold 32 Front square plate 32A Tip portion 33 Rear Square plate 33A Front end 34 Fold 35 Folding tongues 40, 50 Locking parts 41, 51 Locking tongues 42, 52 Locking hole

Claims (5)

A packaging box having a front plate and a rear plate standing on one opposite side of the bottom plate, and side plates on both sides standing on the other opposite side of the bottom plate,
The standing height of the side plates on both sides is lower than the standing height of the front and rear plates,
Both end corners of each of the upper edge of the front plate and the rear plate, Ri Na has an oblique border portion that intersects the upper edge of the side plates,
A front plate and a rear plate are connected to one of the opposite sides of the bottom plate through folds, and a front plate turn-up portion through a fold at a portion excluding both corners of each upper edge of the front plate and the rear plate. And a rear plate folding portion, and a latching claw that projects from each lower edge of the front plate folding portion and the rear plate folding portion and can be engaged with a latching portion provided along one opposite side of the bottom plate With
Side plates lower than the standing height of the front plate and the rear plate are connected to the other opposite side of the bottom plate through folds, and side plate turn-up portions are connected to the upper edges of the side plates through folds. Providing a locking claw that protrudes from the lower edge of the folded portion and can be engaged with a locking portion provided along the other opposite side of the bottom plate,
The front corner plate and the rear corner through the folds that obliquely intersect the side edges of the front plate and the rear plate at both end corners of the upper edge of the front plate and the rear plate to form an oblique edge portion. The board is connected continuously,
A packaging box in which a fold-out tongue piece is connected to each side edge of the front plate and the rear plate through a fold . Each of the front plate and the rear plate, and each of the front plate folded portion and the rear plate folded portion are continuously provided via each of the front plate frame piece and the rear plate frame piece sandwiched between two folds. Each of the front plate frame piece and the rear plate frame piece forms the upper edge of the front plate and the rear plate,
Each of the side plates on both sides and each of the side plate folding portions on both sides are connected via each of the side plate frame pieces on both sides sandwiched between two folds, and each of these side plate frame pieces is connected to each upper edge of each side plate. The packaging box according to claim 1 , wherein Each locking portion provided on the bottom plate is formed with a locking tongue piece cut into the bottom plate so as to have substantially the same width as each locking claw, and the tip of the locking tongue piece is between each side of the bottom plate. The packaging box according to claim 1 or 2, comprising a locking hole cut out in the bottom plate so as to partition. A method for assembling a packaging box according to any one of claims 1 to 3 ,
While engaging the engaging claw of the lower edge of the front plate folding part and the front plate folding part folded back from the upper edge of each of the front plate and the rear plate folded against the bottom plate into the locking part of the bottom plate The front and back corners of the front plate and the rear plate are folded back inward so as to form a diagonal edge at the corners of the upper edges of the front and rear plates. Hold it on the side,
While engaging the latching pawls of the lower edges of the side plate folding parts folded inward from the upper edges of the side plates on both sides folded with respect to the bottom plate, the front plate and the rear plate A method for assembling a packaging box, wherein each folded tongue piece folded inward from each side edge on both sides is sandwiched and held on the back side of each side plate folded portion. It is the cardboard for packaging boxes in any one of Claims 1-3,
A front plate and a rear plate are connected to one opposite side of the bottom plate through folds, and the front plate turn-up portion is connected to the front plate and the rear plate except for both corners of the upper edge through the folds. A locking claw that can be engaged with a locking portion provided along one opposite side of the bottom plate by projecting the lower edge of the front plate folding portion and the rear plate folding portion by providing a rear plate folding portion. Prepared,
Side plates lower than the standing height of the front plate and the rear plate are connected to the other opposite side of the bottom plate through folds, and side plate turn-up portions are connected to the upper edges of the side plates through folds. Providing a locking claw that protrudes from the lower edge of the folded portion and can be engaged with the locking portion provided along the other opposite side of the bottom plate,
The front corner plate and the rear corner through the folds that obliquely intersect the side edges of the front plate and the rear plate at both end corners of the upper edge of the front plate and the rear plate to form an oblique edge portion. The board is connected continuously,
A cardboard for packaging boxes in which a fold-out tongue piece is provided continuously on each side edge of the front plate and the rear plate via a fold.

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