JP2017114529A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container having a three-dimensional lid part, which can suppress the lid part deformed to fold back from unintensionally returning to a three-dimensional shape when opened.SOLUTION: A packaging container 1 comprises a main body part having an upper face plate, a bottom face plate 12 and a pair of side face plates, and a lid part 20 for closing one-side opening end of the main body part. The lid part 20 has a first plate 21 to be connected to one end of the bottom face plate 12, a third plate 23 to be connected to the other end, not the one end, of the bottom face plate 12, and a second plate 22 to be connected to the first plate 21 and the third plate 23, which takes a closed form in which the first-third plates 21, 22 and 23 have a U-shape and an opened form in which the first plate 21 and the second plate 22 overlap with each other and the third plate 23 and the bottom face plate 12 overlap with each other. In the second plate 22, a folding line 45a is formed at a site where a site thereof overlapping with the first plate 21 overlaps with one-side end of the bottom face plate 12 so as to warp toward a side separating from the upper face plate farther than the bottom face plate 12 in a state where the lid part is taking the opened form.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a paper packaging container.

  Conventionally, a box-shaped container body whose upper surface is opened can be freely put in and out of a rectangular cylindrical cover, and the container body containing the packaging object can be pulled out from the cover in the direction of the cylinder axis, and the packaging object can be taken out. A so-called slide open package type packaging container is known.

  In this type of packaging container, a side plate on one side in the cylinder axis direction of the container body, a drawer piece extending from the upper end of the side plate to the other side in the cylinder axis direction, and a connecting piece that connects the bottom plate and the drawer piece of the container body A three-dimensional lid portion called a “pillow”, which forms a rectangular cylinder perpendicular to the cylinder axis direction of the cover, together with the bottom plate, at the end on one side in the cylinder axis direction of the container body It is common to provide it.

  In a packaging container provided with such a lid portion, when the drawer piece is pressed and the lid portion is crushed, the drawer piece and the side plate that overlaps the drawer piece project from the end portion on one side of the cover, and thus project. The container body can be pulled out of the cover by picking and pulling the drawer piece and the side plate. On the other hand, when the packaging object has been taken out, the cover plate returns to a three-dimensional shape by pressing the side plate and pushing the container body against the cover. The opening end on one side in the direction is closed.

  However, since this type of packaging container is usually formed of a coated ball and its rigidity is low, the rectangular cylindrical lid portion is deformed into a rhombus cylindrical shape even when it is closed. There is a possibility that a gap is formed between the cover and the cover, and the packaging object is dropped from the container body to the outside.

  Therefore, for example, in Patent Document 1, a notch is formed at the upper edge of the front plate and the back plate of the container body (a pair of side plates that extend upward from both side edge portions of the bottom plate and face each other), and the front surface of the drawer piece. It is disclosed that the deformation of the lid at the time of closing is suppressed by placing the side edge and the back edge on the cutout.

Japanese Patent No. 4128918

  By the way, the three-dimensional lid part referred to as the above “pillow” is used not only as a slide open package type packaging container but also as a substitute for a lid plate and a flap in a normal packaging container. It may be provided at the open end of the bottomed rectangular cylindrical container body. In this case, the opening end closed by the lid is opened by pressing the drawer and crushing the lid so that the drawer and the side plate overlap. The packaging object is taken out directly.

  However, when a three-dimensional lid is provided in a normal packaging container, the following problems may occur. That is, as described above, since the packaging container is usually formed of a coated ball, since the fold of the lid portion that is folded to form a rectangular cylinder has a crease, pressing the drawer piece Even if it is once crushed, if the pressing is stopped, the folded lid portion will return to its original three-dimensional shape while being incomplete. For this reason, there is a problem that a part of the opening end is blocked by the lid part, and it becomes difficult to take out the packaging object.

  In this regard, in a slide open package type packaging container, it is thought that there will be no problem even if the lid part returns to the original three-dimensional shape because the container body is pulled out from the cover by pulling out the pulling piece protruding by being crushed. It is. However, such a problem may occur even in a slide open package type packaging container because a consumer who tries to remove a packaging object directly from the cover without pulling out the container body from the cover is also assumed.

  The present invention has been made in view of the above points, and the object of the present invention is to provide a packaging container having a three-dimensional lid, and the lid deformed so as to be folded when opened is unintentionally formed into a three-dimensional shape. The purpose is to provide technology to prevent the return.

  In order to achieve the above object, in the packaging container according to the present invention, a fold line is provided at a portion constituting the lid portion so that a crease is formed such that the lid portion is difficult to return to a three-dimensional shape when opened. ing.

  Specifically, the present invention provides a rectangular cylindrical main body having a top plate and a bottom plate facing each other and a pair of side plates facing each other, and a lid that closes one open end of the main body. Are intended for paper packaging containers.

  The lid is connected to the first plate connected to one end of the bottom plate in the cylinder axis direction via a fold, and to the third plate connected to the bottom plate on the other side in the cylinder axis direction from the one end via a fold. A plate and a second plate connected to the first plate and the third plate through folds, respectively, and the first plate, the second plate, and the third plate are opposed to the pair of side plates. Viewed from the bottom plate side, and a closed configuration with a U-shape opened to the bottom plate side, and an unsealed configuration in which the first plate and the second plate overlap and the third plate and the bottom plate overlap. The second plate or the third plate has a portion that overlaps with the first plate in the second plate or the third plate in a state where the opening form is adopted, than the bottom plate. A fold line is provided at a portion overlapping one end of the bottom plate so as to warp away from the top plate. And it is characterized in Rukoto.

  In the present invention, the “folding line” means a line that clearly indicates the folding position and makes it easy to fold the paper, for example, by forming a cut groove or embossing. In the present invention, for example, a part that is actually folded along such a fold line is referred to as a “fold”.

  According to this configuration, by providing a fold line at a portion that overlaps one end of the bottom plate in the second plate or the third plate, the portion that overlaps the first plate in the second plate or the third plate is changed from the bottom plate. Can be easily warped to the side away from the top plate. In the following, the case where a fold line is provided on the second plate will be described, but the same applies to the case where a fold line is provided on the third plate.

  Here, the following (1) to (4) may be mentioned as the folding crease with a crease in which the folded lid portion is incomplete but tries to return to the original three-dimensional shape. That is, (1) for the fold between the bottom plate and the first plate (referred to as the first fold), the folding plate that is intended to raise the first plate toward the top plate with respect to the bottom plate; As for the fold between the plate and the second plate (referred to as the second fold), the fold between the first plate and the second plate that overlap each other (3) the fold between the second plate and the third plate As for (tentatively referred to as the third fold), a crease for closing the flat second plate and the third plate, (4) a fold between the third plate and the bottom plate (temporarily referred to as the fourth fold) ) Is a crease that tends to raise the third plate to the top plate side with respect to the bottom plate.

  In this regard, in the present invention, the portion of the second plate that overlaps the first plate is warped to the side away from the top plate rather than the bottom plate, and accordingly, the first plate is also warped to the side away from the top plate. Thereby, about (1), since a 1st crease | fold is bend | folded on the opposite side to the direction where the crease was attached, a 1st board becomes difficult to stand | start up to an upper surface board side with respect to a bottom face board. Further, when the portion of the second plate that overlaps the first plate is warped away from the upper surface plate, the second plate and the third plate are in an arcuate state in the cylinder axis direction. Thus, for (3) and (4), the third and fourth folds are strongly extended in a flat shape, so that the flat second plate and the third plate are closed, or the third plate is It becomes difficult to stand up to the top plate side with respect to the face plate. Further, if the portion of the second plate that overlaps the first plate is warped away from the upper surface plate, the first plate and the second plate strongly overlap, so that in (2), the second fold is difficult to open. .

  In addition, the second plate or the third plate has a crease that tries to maintain the warped state overlapping the first plate.

  As described above, the folds of the first to fourth folds may be reduced, and the folds may be attached to the second plate or the third plate to maintain the warped state overlapping the first plate. Together, it is difficult for the lid portion to return to a three-dimensional shape, so that it is possible to prevent the lid portion that has been deformed so as to be folded at the time of opening unintentionally returns to a three-dimensional shape.

  The present invention is also applicable to a slide open package type packaging container.

  That is, the present invention accommodates a rectangular cylindrical cover portion having opposing top and bottom plates and a pair of opposing side plates, and can be inserted into and removed from the cover portion while overlapping the bottom plate. A paper packaging container including an inner plate portion and a lid portion that closes one open end of the cover portion is also targeted.

  And the said cover part is connected via the said inner plate part via a crease | fold and the 1st board connected through the fold line with the one end of the cylinder axis direction of the said inner plate part from the said one end. A third plate and a second plate connected to the first plate and the third plate through folds, respectively, and the first plate, the second plate, and the third plate are formed of the pair of side plates. When viewed from the opposite direction, a closed form having a U-shape opened to the inner plate part side, an opening form in which the first plate and the second plate overlap and the third plate and the inner plate part overlap. The second plate or the third plate has a portion that overlaps the first plate in the second plate or the third plate in the state where the opening form is taken. A fold line is provided at a portion that overlaps one end of the inner plate portion so as to warp away from the upper plate than the inner plate portion. And it is characterized in Rukoto.

  According to this configuration, by providing a fold line at a portion that overlaps one end of the inner plate portion in the second plate or the third plate, the portion that overlaps the first plate in the second plate or the third plate is changed to the inner plate portion. It can be easily warped to the side away from the top plate. As a result, even in a slide open package type packaging container, it is possible to prevent the lid portion deformed so as to be folded at the time of opening from unintentionally returning to a three-dimensional shape. Therefore, even in the slide open package type packaging container, the consumer can take out the packaging object directly and smoothly from the cover part without pulling out the container body from the cover part.

  Moreover, in these packaging containers, it is preferable that the length of the said 3rd board in the direction where the said 1st board, the 2nd board, and the 3rd board are connected is longer than the length of the said 1st board.

  According to this structure, since the length of the 3rd board which penetrates into a main-body part or a cover part deeper than a 1st board is longer than the length of a 1st board, in other words, opposing of a pair of side plate Since the lid portion has a reverse wedge shape when viewed from the direction, the third plate is firmly sandwiched between the top plate and the bottom plate, so that the open end of the main body portion or the cover portion is tightly closed. Can do.

  As described above, according to the packaging container according to the present invention, it is possible to prevent the lid portion deformed so as to be folded over from unintentionally returning to a three-dimensional shape when opened.

It is a perspective view which shows typically the packaging container which concerns on Embodiment 1 of this invention. It is an expanded view of a packaging container. It is the perspective view which shows a cover part typically, The figure (a) shows the obstruction | occlusion form, The figure (b) has shown the opening form. It is sectional drawing which shows a cover part typically, The figure (a) shows a closure form, The figure (b) shows an opening form, The figure (c) is a case where the 2nd board is not warped. The form is shown. It is a perspective view which shows typically the opening form of a cover part. It is a perspective view which shows typically the packaging container which concerns on the modification of Embodiment 1. FIG. It is a perspective view which shows typically the packaging container which concerns on Embodiment 2 of this invention. It is an expanded view of a packaging container. It is the perspective view which shows a cover part typically, The figure (a) shows the obstruction | occlusion form, The figure (b) has shown the opening form. It is a perspective view which shows typically the opening form of a cover part.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a perspective view schematically showing a packaging container 1 according to the present embodiment, and FIG. 2 is a development view of the packaging container 1. The packaging container 1 includes a bottomed rectangular cylindrical main body 10 and a lid 20 that closes the opening end of the main body 10 on one side in the cylinder axis direction. The main body 10 includes a top plate 11 and a bottom plate 12 that face each other, a pair of side plates 13 and 14 that face each other, and a cylindrical cylinder that includes the top plate 11, the bottom plate 12, and the side plates 13 and 14. And a closing portion 15 that closes the end portion on the other side in the direction.

  The packaging container 1 is assembled by punching out the coated ball along the development view shown in FIG. 2, bending it along the folding line, and pasting a predetermined portion. Note that FIG. 2 is illustrated such that the outer surface of the main body 10 is the front side of the figure.

−Development diagram−
In the developed view shown in FIG. 2, a substantially rectangular upper surface plate 11 is connected to the left side of the rectangular side plate 14 via a folding line 31a, and the left side of the upper surface plate 11 is rectangularly connected via a folding line 32a. A side plate 13 having a shape is continuously provided, a rectangular bottom plate 12 is provided on the left side of the side plate 13 via a fold line 33a, and an adhesive margin is provided on the left side of the bottom plate 12 via a fold line 34a. 16 is continuously provided. Further, on the lower side of the side plate 14, the top plate 11, the side plate 13, and the bottom plate 12, the flap 14a, the upper closing plate 11a, the flap 13a, and the bottom closing plate 12a constituting the closing portion 15 are folded lines 35a, respectively. , 36a, 37a, 38a. Further, the first plate 21 is connected to the upper side of the bottom plate 12 via a first fold line 41a, and the second plate 22 is connected to the upper side of the first plate 21 via a second fold line 42a. The third plate 23 is connected to the upper side of the second plate 22 via a third fold line 43a, and the glue margin 24 is connected to the upper side of the third plate 23 via a fourth fold line 44a. ing.

  An opening / closing body 11b is formed on the upper end portion (end portion on one side in the cylinder axis direction) of the upper surface plate 11 via a cut sewing line 39a. The opening / closing body 11b is glued to the second plate 22 constituting the lid portion 20, and is cut along the cut sewing line 39a when the packaging container 1 is opened for the first time.

  As will be described later, the glue margin 24 is glued to the inner surface of the bottom plate 12 (the back surface in FIG. 2), and the bottom plate 12 is slightly below the tip of the glue margin 24 that is glued. An embossed portion 12b extending in the left-right direction in FIG. 2 and recessed in the rear surface side in FIG. 2 is formed on the other side in the cylinder axis direction.

  As shown in FIG. 2, the width (the width in the left-right direction) of the first plate 21 is set larger than the widths of the top plate 11 and the bottom plate 12. Further, the second plate 22 is formed in a rectangular shape in which the portion on the first plate 21 side has the same width as the width of the top plate 11 and the bottom plate 12, while the portion on the third plate 23 side is the tip (upper side). ). Furthermore, the length of the third plate 23 in the direction in which the first plate 21, the second plate 22, and the third plate 23 are connected (connected) (vertical direction in FIG. 2) is greater than the length of the first plate 21. Is also set longer.

  Further, a folding line 45a is formed on the second plate 22 by embossing at a portion that is symmetrical with the first folding line 41a with the second folding line 42a interposed therebetween. In other words, the distance between the second fold line 42a and the fold line 45a is the first plate in the direction in which the first plate 21, the second plate 22, and the third plate 23 are connected (hereinafter also referred to as the connected direction). It is equal to the length of 21.

-Assembly procedure-
Next, the assembly procedure of the packaging container 1 configured as described above will be described.

  First, the coated ball is punched in accordance with the development view of FIG. 2, and reversed so that the back surface of FIG. Then, the bottom plate 12 and the first plate 21 are orthogonal, the first plate 21 and the second plate 22 are approximately orthogonal, and the second plate 22 and the third plate 23 are approximately orthogonal. 1st to 3rd fold lines 41a, 42a and 43a are each folded in a valley, and the 4th fold line 44a is folded in a mountain so that the third plate 23 and the glue margin 24 are orthogonal to each other, and an adhesive is applied. The marginal portion 24 is attached to the inner surface of the bottom plate 12. Thus, the first plate 21 connected to the one end of the bottom plate 12 in the cylinder axis direction via the first fold 41 and the bottom plate 12 and the fourth fold 44 on the other side in the cylinder axis direction from the one end. A U-shape having a third plate 23 to be connected, a first plate 21 and a third plate 23, and a second plate 22 connected through second and third folds 42 and 43, respectively, and opened to the bottom plate 12 side. The three-dimensional cover part 20 which comprises is formed (refer Fig.3 (a)). In FIGS. 3A and 3B, the side plates 13 and 14 are not shown in order to make the drawing easier to see.

  Next, the side plate 14 and the top plate 11 are orthogonal, the top plate 11 and the side plate 13 are orthogonal, the side plate 13 and the bottom plate 12 are orthogonal, and the bottom plate 12 and the adhesive margin 16 are The fold lines 31a, 32a, 33a, and 34a are each folded in a valley so as to be orthogonal to each other. Then, an adhesive is applied to the adhesive margin 16 and the opening / closing body 11b, and the adhesive margin 16 is attached to the inner surface of the side plate 14, and the opening / closing body 11b is attached to the upper surface of the second plate 22. Accordingly, the side plate 14 attached to the adhesive margin 16, the top plate 11 connected to the side plate 14 via the fold line 31, the side plate 13 connected to the top plate 11 via the fold line 32, and the side plate 13. And a side plate 14 and a bottom plate 12 connected via fold lines 33 and 34, respectively, and a rectangular cylinder that encloses the lid 20 is formed. Note that the packaging object (not shown) is packaged in a box at the stage where a rectangular cylinder that encloses the lid 20 is formed.

  Next, the folding lines 35a and 37a are folded at the valleys to fold the flaps 14a and 13a. Then, the folding lines 36a and 38a are valley-folded, and the inner surface of the upper closing plate 11a and the outer surface of the bottom closing plate 12a are bonded with an adhesive. Thereby, the flap 14a connected through the side plate 14 and the fold 35, the upper closing plate 11a connected through the top plate 11 and the fold 36, the flap 13a connected through the side plate 13 and the fold 37, and the bottom plate 12 And the bottom closing plate 12a connected through the crease 38 are formed, and the assembly of the packaging container 1 is completed.

-Lid-
In the packaging container 1 assembled as described above, when opening the packaging container 1 for the first time, the lid 20 is reclosed by pressing the opening / closing body 11b and cutting the opening / closing body 11b along the cut sewing line 39a. It will be in the state which can take the obstruction | occlusion form at the time and the opening form at the time of use. Here, as shown in FIG. 3A and FIG. 4A, the closed form means that the first plate 21, the second plate 22, and the third plate 23 are opposed to the pair of side plates 13 and 14. , A three-dimensional form having a U-shape opened on the bottom plate 12 side. On the other hand, as shown in FIGS. 3B and 4B, the opening form means a form in which the first plate 21 and the second plate 22 overlap and the third plate 23 and the bottom plate 12 overlap. . The closed form and the open form are the open form by pressing the open / close body 11b attached to the second plate 22 and crushing the three-dimensional lid 20 from the closed form. The second plate 22 is pushed into the main body 10 so that the first plate 21 is raised, so that the closed state is obtained.

[Blocking form]
First, since the width of the first plate 21 is set larger than the width of the top plate 11 and the bottom plate 12 as described above, the lid 20 forms an opening end on one side in the cylinder axis direction of the main body 10. When closing, both side edges of the first plate 21 come into contact with one end of the side plates 13 and 14 in the cylinder axis direction so that the lid 20 is not pushed into the main body 10 more than necessary. It has become.

  Further, as described above, the second plate 22 is formed in a rectangular shape in which the portion on the first plate 21 side has the same width as the width of the top plate 11 and the bottom plate 12, while the portion on the third plate 23 side. Is formed in a trapezoidal shape that narrows toward the tip, so that when the second plate 22 is pushed into the main body portion 10 with the first plate 21 raised, the second plate 22 is pushed into the main body portion 10. It is easy.

  Furthermore, since the length of the third plate 23 in the connecting direction is set longer than the length of the first plate 21, in other words, the height of the third plate 23 is higher than the height of the first plate 21. Therefore, as shown in FIG. 4A, the lid 20 is pushed into the main body 10 in a reverse wedge shape that is difficult to come out in the cylinder axis direction. Thereby, since the 3rd board 23 is pinched | interposed firmly by the upper surface board 11 and the bottom face board 12, the opening end of the main-body part 10 can be obstruct | occluded firmly. The difference between the length of the third plate 23 and the length of the first plate 21 is actually about 0.5 mm, but in FIG. 4A, the difference between the two is exaggerated to make the drawing easier to see. As shown.

[Opening form]
In the unsealed form, the lid 20 is crushed so that the first plate 21 and the second plate 22 overlap and the third plate 23 and the bottom plate 12 overlap, but the first and fourth folds 41 and 44 Folding folds that cause the first plate 21 and the third plate 23 to stand up toward the top plate 11 with respect to the bottom plate 12 are overlapped at the second fold 42. The third fold 43 is provided with a crease for closing the flat second plate 22 and the third plate 23, respectively. For this reason, even if the cover part 20 is once crushed by pressing the second plate 22, if the pressing is stopped, the folded cover part 20 tries to return to the original three-dimensional shape while being incomplete. Therefore, as shown in FIG.4 (c), the case where a part of opening end is block | closed with the cover part 20 and it becomes difficult to take out a packaging target object is also assumed.

  Therefore, in the packaging container 1 of the present embodiment, as described above, the fold line 45a is formed on the second plate 22, and the second plate 22 is bent along the fold line 45a. As shown, the portion of the second plate 22 that overlaps the first plate 21 is warped to the side farther from the top plate 11 than the bottom plate 12. More specifically, since the distance between the second fold line 42a and the fold line 45a is equal to the length of the first plate 21 in the connecting direction, the fold line 45a is formed on the bottom plate 12 of the second plate 22. It is provided in the part which overlaps one end. Therefore, when the second plate 22 is bent along the folding line 45a, the portion of the second plate 22 that overlaps the first plate 21 and the first plate 21 are farther from the top plate 11 than the bottom plate 12. Will warp.

  As a result, the first crease 41 is bent to the side opposite to the direction in which the crease is attached, so that it is difficult for the first plate 21 to rise to the top plate 11 side with respect to the bottom plate 12. Further, when the portion of the second plate 22 that overlaps the first plate 21 warps away from the upper surface plate 11, the second plate 22 and the third plate 23 are in an arcuate state in the cylinder axis direction. As a result, the third and fourth folds 43 and 44 are strongly extended in a flat shape, so that the flat second plate 22 and the third plate 23 are closed, or the third plate 23 is against the bottom plate 12. This makes it difficult to stand up to the top plate 11 side. Further, if the portion of the second plate 22 that overlaps the first plate 21 warps away from the upper surface plate 11, the first plate 21 and the second plate 22 strongly overlap each other, so that the second fold 42 is difficult to open. .

  In addition, when the second plate 22 is bent so as to warp the portion of the second plate 22 that overlaps the first plate 21, the fold 45 that is bent along the fold line 45 a also overlaps with the first plate 21 and warps. You will end up with a trap to maintain.

  As described above, the folds of the first to fourth folds 41, 42, 43, 44 are reduced, and the second plate 22 tries to maintain the state in which the second plate 22 overlaps with the first plate 21 and warps. Combined with the fact that the crease is attached, it becomes difficult for the lid 20 to return to a three-dimensional shape. Therefore, the state as shown in FIG. 5 is maintained without unintentionally returning to the three-dimensional shape of the lid 20 that is deformed so as to be folded at the time of opening, so that the packaging object can be easily taken out. .

  Note that when the packaging object is taken out, it is assumed that the packaging object is caught on the tip of the margin part 24 glued to the bottom plate 12. Since the embossed portion 12b is formed in the vicinity of the tip of the portion 24, the step between the bottom plate 12 and the adhesive margin portion 24 is eliminated as shown in FIG. It can be taken out.

-Modification of Embodiment 1-
This modified example is different from the first embodiment in that the packaging container 2 is a sliding open package type packaging container. Hereinafter, a description will be given centering on differences from the first embodiment.

  FIG. 6 is a perspective view schematically showing the packaging container 2 according to this modification. The packaging container 2 is a paper packaging container of a slide open package system. As shown in FIG. 6, a rectangular cylindrical cover part 50 and an inner box part 60 accommodated in and out of the cover part 50 are provided. And a lid portion 70 that closes the opening end of the cover portion 50 on one side in the cylinder axis direction. Although the development view is omitted, the packaging container 2 is assembled by punching out the coated ball and then folding it along the fold line and gluing a predetermined portion in the same manner as the packaging container 1 of the first embodiment. It is what

  The cover unit 50 includes a top plate 51 and a bottom plate 52 facing each other, and a pair of side plates 53 and 54 facing each other. A triangular notch 51a is formed at one end of the upper surface plate 51 in the cylinder axis direction, and the second plate 72 of the lid 70 can be pressed from the notch 51a. . In addition, the inner dimension of the cover part 50 is set corresponding to the outer dimension of the inner box part 60 so that the inner box part 60 can slide smoothly with respect to the cover part 50.

  The inner box portion 60 includes a bottom plate 62, a pair of side plates 63 and 64 that face each other, and a closing plate 65 that is connected to the bottom plate 62 and the side plates 63 and 64 at the other end in the axial direction. Thus, together with the lid part 70, a box-like body having an open upper surface is formed. The closing plate 65 is bonded to a flap (not shown) provided at the other axial end of the side plates 63 and 64 with an adhesive. The inner box portion 60 is accommodated in the cover portion 50 so that the bottom plate 62 overlaps the bottom plate 52 of the cover portion 50. As a result, in the present modification, the bottom plate 62 of the inner box portion 60 corresponds to the “inner plate portion that can be inserted into and removed from the cover portion while overlapping the bottom plate” according to the present invention.

  The lid portion 70 includes a first plate 21, a second plate 22, a third plate 23, and an adhesive margin portion 24, in which the lid portion 20 of the first embodiment is sequentially connected to the upper side of the bottom plate 12 via a folding line. The first plate 71, the second plate 72, the third plate 73, and the glue margin portion 74 are sequentially connected to one side in the cylinder axis direction of the bottom plate 62 via a folding line. It is constituted by. Then, each fold line is folded, and the adhesive margin 74 to which the adhesive is applied is attached to the inner surface of the bottom plate 62, so that one end of the bottom plate (inner plate portion) 62 in the cylinder axis direction and the first end A first plate 71 connected via a fold 81, a third plate 73 connected via a bottom plate 62 and a fourth fold 84 on the other side in the cylinder axis direction from the one end, a first plate 71 and a third plate 73. And a second plate 72 connected through second and third folds 82 and 83, respectively, and a three-dimensional lid portion 70 having a U-shape opened on the bottom plate 62 side is formed.

  The lid 70 has a closed shape in which the first plate 71, the second plate 72, and the third plate 73 have a U-shape that is open to the bottom plate 62 side when viewed from the opposing direction of the pair of side plates 53, 54. The first plate 71 and the second plate 72 overlap each other, and the third plate 73 and the bottom plate 62 overlap each other. The closed form and the open form are formed by pressing the second plate 72 from the notch 51a and crushing the three-dimensional lid part 70, thereby changing from the closed form to the open form. When the inner box part 60 is accommodated in the cover part 50 so as to wake up 71, the closed form is obtained.

  Further, the width of the first plate 71 is set to be larger than the widths of the upper surface plate 51 and the bottom surface plate 52 of the cover portion 50, whereby the side plate 53 is accommodated when the inner box portion 60 is accommodated in the cover portion 50. , 54 abuts both side edges of the first plate 71 to the edge on one side in the cylinder axis direction, so that the inner box part 60 is not pushed into the cover part 50 more than necessary.

  Further, the second plate 72 has a width on the first plate 71 side larger than the width of the bottom plate 62, and in the closed form, both end portions in the width direction of the portion on the first plate 71 side are The pair of side plates 63 and 64 are placed on a notch (not shown) formed at the upper edge of the pair of side plates 63 and 64. Thereby, unless the consumer presses the 2nd board 72 and crushes the cover part 70, since the closed form of the cover part 70 is maintained, it can suppress that a packaging target object falls.

  In addition, the bottom of the second plate 72 is such that the portion of the second plate 72 that overlaps the first plate 71 warps to the side farther from the top plate 51 than the bottom plate 62 in the unsealed form. A fold line 85a is provided at a portion overlapping one end of the face plate 62 in the cylinder axis direction. Then, when the second plate 72 is bent along the fold line 85a and the portion overlapping the first plate 71 in the second plate 72 is bent, the first to fourth folds 81, Since the creases 82, 83, and 84 are reduced and the creases are formed at the folds formed by folding the fold line 85a, the lid 70 is difficult to return to the three-dimensional shape. Therefore, it is possible to prevent the lid portion 70 deformed so as to be folded at the time of opening from unintentionally returning to a three-dimensional shape.

  As described above, according to this modification, even in the slide open package type packaging container 2, the packaging object can be directly and smoothly taken out from the cover unit 50 without pulling out the inner box unit 60 from the cover unit 50. Can do.

(Embodiment 2)
The present embodiment is different from the first embodiment in that the folding line 125a for maintaining the unsealed form is provided not on the second plate 102 but on the third plate 103. Hereinafter, a description will be given centering on differences from the first embodiment.

  FIG. 7 is a perspective view schematically showing the packaging container 3 according to this embodiment, and FIG. 8 is a development view of the packaging container 3. The packaging container 3 has a bottomed bottom plate having a top plate 91 and a bottom plate 92 that face each other, a pair of side plates 93 and 94 that face each other, and a closing portion 95 that closes an end on the other side in the cylinder axis direction. A rectangular cylindrical main body 90 and a lid 100 that closes the opening end of the main body 90 on one side in the cylinder axis direction are provided. Note that FIG. 8 is illustrated so that the outer surface of the main body 90 is the front side of the figure.

−Development diagram−
In the developed view shown in FIG. 8, a substantially rectangular top plate 91 is on the left side of the rectangular side plate 94, a rectangular side plate 93 is on the left side of the top plate 91, and a rectangular side plate 93 is on the left side of the side plate 93. A bottom plate 92 having a shape and an adhesive margin 96 on the left side of the bottom plate 92 are connected to each other via folding lines 111a, 112a, 113a, and 114a, respectively. Further, on the lower side of the side plate 94, the top plate 91, the side plate 93, and the bottom plate 92, the flap 94a, the upper closing plate 91a, the flap 93a, and the bottom closing plate 92a constituting the closing portion 95 are folded lines 115a. , 116a, 117a, 118a. Further, the first plate 101 is located above the bottom plate 92, the second plate 102 is located above the first plate 101, the third plate 103 is located above the second plate 102, and the third plate 103 is located above the third plate 103. The glue margin 104 is continuously connected via a first fold line 121a, a second fold line 122a, a third fold line 123a, and a fourth fold line 124a. An opening / closing body 91b is formed on the upper end portion of the upper surface plate 91 via a cut sewing line 119a.

  As shown in FIG. 8, the width of the first plate 101 is set larger than the widths of the top plate 91 and the bottom plate 92 so that the lid 100 is not pushed into the main body 90 more than necessary. . Further, the second plate 102 has a rectangular shape in which the portion on the first plate 101 side has the same width as the top plate 91 and the bottom plate 92 so that the second plate 102 can be easily pushed into the main body 90. On the other hand, a portion on the third plate 103 side is formed in a trapezoidal shape that narrows toward the tip. Further, in the direction in which the first plate 101, the second plate 102, and the third plate 103 are continuously provided (hereinafter, also referred to as a continuous direction) so that the opening end of the main body 90 can be tightly closed. The length of the third plate 103 is set longer than the length of the first plate 101.

  In addition, a fold line 125a is formed on the third plate 103 by embossing at a portion that is line-symmetric with the first fold line 121a with the second fold line 122a interposed therebetween. In other words, the interval between the second fold line 122a and the fold line 125a is equal to the length of the first plate 101 in the connecting direction.

-Assembly procedure-
Next, an assembly procedure of the packaging container 3 configured as described above will be described. First, the coated ball is punched in accordance with the development view of FIG. 8, and is reversed so that the back surface of FIG. Next, the first to third fold lines 121 a, 122 a, and 123 a are each folded at a valley and the fourth fold line 124 a is folded into a mountain, and the adhesive margin 104 is attached to the inner surface of the bottom plate 92 with an adhesive. Thus, the first plate 101 connected to the one end of the bottom plate 92 in the cylinder axis direction via the first fold 121, and the bottom plate 92 and the fourth fold 124 on the other side in the cylinder axis direction from the one end. A U-shape having a third plate 103 to be connected, a first plate 101 and a third plate 103, and a second plate 102 connected through second and third fold lines 122 and 123, respectively, and opened to the bottom plate 92 side. A three-dimensional lid 100 is formed (see FIG. 9A).

  Next, the folding lines 111a, 112a, 113a, and 114a are each folded in a valley, and the adhesive margin 96 is attached to the inner surface of the side plate 94 with an adhesive, and the opening / closing body 91b is attached to the upper surface of the second plate 102 with an adhesive. wear. As a result, the side plate 94 adhered to the adhesive margin 96, the upper surface plate 91 connected via the side plate 94 and the fold line 111, the side plate 93 connected via the upper surface plate 91 and the fold line 112, and the side plate 93 And a side plate 94 and a bottom plate 92 connected through the folds 113 and 114, respectively, and a rectangular cylinder surrounding the lid 100 is formed.

  Next, the folding lines 115a and 117a are folded at the valleys, the flaps 94a and 93a are folded, the folding lines 116a and 118a are folded at the valleys, and the inner surface of the upper closing plate 91a and the outer surface of the bottom closing plate 92a are bonded. Paste with an agent. Thereby, it comprises the flap 94a, the upper closing plate 91a, the flap 93a and the bottom closing plate 92a which are connected to the side plate 94, the top plate 91, the side plate 93 and the bottom plate 92 via the folds 115, 116, 117 and 118, respectively. The closed portion 95 is formed, and the assembly of the packaging container 3 is completed.

-Lid-
In the packaging container 3 assembled as described above, when the packaging container 3 is opened for the first time, the second plate 102 and the glued opening / closing body 91b are pressed and cut along the cut sewing line 119a. As a result, as shown in FIG. 9A, the lid 100 has a bottom plate when the first plate 101, the second plate 102, and the third plate 103 are viewed from the opposing direction of the pair of side plates 93 and 94. A closed configuration in the shape of a letter C opened on the 92 side, and an opened configuration in which the first plate 101 and the second plate 102 overlap and the third plate 103 and the bottom plate 92 overlap as shown in FIG. 9B. It becomes a state that can be taken.

  Here, similarly to the first embodiment, if the fold line is formed on the second plate 102 and bent toward the side away from the top plate 91 than the bottom plate 92, the lid 100 is prevented from returning to a three-dimensional shape. be able to. However, when the thickness of the packaging container 3 is relatively thick as in this embodiment, in other words, when the length of the first plate 101 in the connecting direction is relatively long, the folding line is formed on the second plate 102. If it is going to form, the 2nd board 102 will become long inevitably, As a result, the ratio for which the cover part 100 accounts in the main-body part 90 will become large too much, and there exists a problem that the number of the packaging target objects which can be packaged decreases.

  Therefore, in the packaging container 3 of the present embodiment, as described above, the fold line 125a is formed on the third plate 103, and the third plate 103 is bent along the fold line 125a. As shown, the portion of the third plate 103 that overlaps the first plate 101 together with the second plate 102 is warped to the side farther from the top plate 91 than the bottom plate 92. More specifically, since the distance between the second fold line 122a and the fold line 125a is equal to the length of the first plate 101 in the connecting direction, the fold line 125a is formed between the bottom plate 92 and the third plate 103. It is provided in the part which overlaps one end. Therefore, when the third plate 103 is bent along the fold line 125a, the portion of the third plate 103 that overlaps the first plate 101, the first plate 101, and the second plate 102 are located on the upper surface plate rather than the bottom surface plate 92. It will warp to the side away from 91.

  As described above, when the third plate 103 is bent and the portion of the third plate 103 overlapping the first plate 101 is warped, the first to fourth folds 121, 122, 123, and 124 are the same as in the first embodiment. The combination of the reduction of creases and the formation of creases at the folds 125 formed by folding the fold line 125a makes it difficult for the lid 100 to return to a three-dimensional shape. Thereby, in the packaging container 3 of this embodiment, the state as shown in FIG. 10 is maintained without unintentionally returning to the three-dimensional shape of the lid portion 100 that is deformed so as to be folded at the time of opening. An object can be easily taken out.

(Other embodiments)
The present invention is not limited to the embodiments, and can be implemented in various other forms without departing from the spirit or main features thereof.

  In each of the above embodiments, the lid portions 20, 70, 100 are provided on one side in the cylinder axis direction of the packaging containers 1, 2, 3, but not limited thereto, for example, the cylinder axes of the packaging containers 1, 2, 3, You may make it provide the cover part 20,70,100 in the direction both sides.

  Moreover, in the said modification, although the cover part 50 was made into the rectangular cylinder shape by which both ends were opened, it is not restricted to this, For example, it is good also as a cover part of the bottomed rectangular cylinder shape by which the obstruction board 65 side was obstruct | occluded.

  Further, in the above-described modification, the inner box portion 60 is a box-like body having an open upper surface, but a bottom plate (inner plate portion) that is accommodated in the cover portion 50 while being overlapped with the bottom plate 52 of the cover portion 50. ) 62 as long as it is provided, the inner box 60 may be formed in any shape.

  Moreover, in the said Embodiment 2, although only the packaging container 3 which provided the cover part 100 in the bottomed rectangular cylindrical main-body part 90 was demonstrated, not only this but the folding line 125a was provided in the 3rd board 103. As for the packaging container 3, a slide open package method may be adopted as in the modification of the first embodiment.

  As described above, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  According to the present invention, it is possible to suppress unintentionally returning to a three-dimensional shape of a lid part that is deformed so as to be folded at the time of opening, which is extremely useful when applied to a packaging container having a three-dimensional lid part. .

1, 2, 3 Packaging container 20, 70, 100 Lid 10, 90 Main body 11, 51, 91 Top plate 12, 52, 92 Bottom plate 13, 53, 93 Side plate 14, 54, 94 Side plate 21, 71 101 First plate 22, 72, 102 Second plate 23, 73, 103 Third plate 41, 81, 121 First fold 42, 82, 122 Second fold 43, 83, 123 Third fold 44, 84, 124 4th fold 45a, 85a, 125a Folding line 50 Cover part 62 Bottom plate (inner plate part)

Claims (3)

A paper packaging container comprising: a rectangular cylindrical main body having opposing top and bottom plates, and a pair of opposing side plates; and a lid that closes one open end of the main body. Because
The lid portion includes a first plate connected to one end of the bottom plate in the cylinder axis direction via a fold, and a third plate connected to the bottom plate on the other side in the cylinder axis direction from the one end via a fold. And a second plate connected to each of the first plate and the third plate via a fold line, and the first plate, the second plate, and the third plate are viewed from the opposing direction of the pair of side plates. And a closed configuration in the shape of a letter U opened to the bottom plate side, and an unsealed configuration in which the first plate and the second plate overlap and the third plate and the bottom plate overlap. Configured,
In the second plate or the third plate, in a state where the opening form is adopted, a portion of the second plate or the third plate that overlaps the first plate is closer to the side away from the top plate than the bottom plate. A wrapping line is provided at a portion overlapping with one end of the bottom plate so as to warp. A rectangular cylindrical cover having opposing top and bottom plates and a pair of opposing side plates, an inner plate that is removably accommodated in the cover while overlapping the bottom plate, and A paper packaging container comprising a lid that closes one open end of the cover,
The lid is connected to a first plate connected to one end of the inner plate in the cylinder axis direction via a fold, and a third plate connected to the inner plate via the fold on the other side in the cylinder axis direction from the one end. A plate and a second plate connected to the first plate and the third plate through folds, respectively, and the first plate, the second plate, and the third plate are opposed to the pair of side plates. When viewed from the side, the closed form that forms a U-shape that opens to the inner plate part side, the opening form in which the first plate and the second plate overlap and the third plate and the inner plate part overlap, Is configured to take
In the second plate or the third plate, the portion where the first plate in the second plate or the third plate overlaps the first plate is separated from the upper plate than the inner plate portion in the state of taking the opening form. A wrapping line is provided at a portion overlapping with one end of the inner plate portion so as to warp the package. In the packaging container according to claim 1 or 2,
A packaging container, wherein a length of the third plate in a direction in which the first plate, the second plate, and the third plate are connected is longer than a length of the first plate.

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