Paper container

Abstract

To improve the opening properties of a paper container comprising a pop display part for sales promotion.SOLUTION: A paper container 10 comprises an outer peripheral wall 12, a bottom wall 20 closing the bottom of the outer peripheral wall 12, a lid wall 30 covering the upper end of the outer peripheral wall 12, and a pop display part 45 provided at the outer peripheral wall 12 on the upper end side of a front wall 13. The pop display part 45 is sectioned with a pair of pop broken lines 46 extending upward and downward from the upper end of the front wall 13, and a pop folding line 47 provided between the pair of pop rupture lines 46. A pair of side walls 15 are higher than the upper end of the front wall 13 including the pop display part 45, and a front opening part 37 is provided between the pop display part 45 and lid wall 30. The pair of side walls 15 are provided with an operation part 50, a front rupture line 51 extending from the front end of the operation part 50 to between the upper end of the front wall 13 and the lid wall 30 and to the front end of the side wall 15, and a rear rupture line 52 extending from the rear end of the operation part 50 to between the upper end of a rear wall 14 and the lid wall 30 and to the rear end of the side wall 15, respectively.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a paper container. [Background technology]

[0002] The paper container disclosed in Patent Document 1 includes a rectangular cylindrical outer wall formed by a front wall, a rear wall, and a pair of side walls, a bottom wall that closes the bottom of the outer wall, a lid wall that closes the upper end opening of the outer wall, and a pop display section provided so as to be continuous with the upper end of the front wall. The pop display section is defined by a pair of pop break lines that extend upward from the upper end of the front wall along the ridge between the front wall and the side walls, and a pop fold line provided between the lower ends of the pair of pop break lines. In addition, the paper container further includes a pair of side break lines provided on each side wall and a rear break line provided on the rear wall to separate the outer wall into a bottom wall side and a lid wall side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4467147 Summary of the Invention [Problem to be solved by the invention]

[0004] When opening the paper container of Patent Document 1, it is necessary to break the POP display part from the adjacent side wall along the POP break line, break each side wall along the side break line, and then break the rear wall along the rear break line. In other words, since it is necessary to break the outer wall in three steps, there is room for improvement in the ease of opening the paper container of Patent Document 1.

[0005] An object of the present invention is to improve the openability of a paper container having a pop display portion for sales promotion. [Means for solving the problem]

[0006] One aspect of the present invention is a paper container comprising a cylindrical outer wall having a front wall, a pair of side walls connected to both sides of the front wall in the width direction, and a rear wall connected to the pair of side walls, a bottom wall closing the bottom of the outer wall, a lid wall covering an upper end of the outer wall, and a POP display section for advertising provided on the upper end side of the front wall, wherein the POP display section comprises a pair of POP break lines extending vertically from the upper end of the front wall and spaced apart in the width direction, and a POP fold line extending in the width direction between the pair of POP break lines. the pair of side walls are partitioned by a front opening exposing the inside between the upper end of the front wall including the pop display portion, and the pair of side walls are each provided with an operating portion for opening, a front break line extending from the front end of the operating portion between the upper end of the front wall and the lid wall and to the front end of the side wall, and a rear break line extending from the rear end of the operating portion between the upper end where the rear wall terminates and the lid wall and to the rear end of the side wall.

[0007] The side wall is provided with a front break line and a rear break line, the front break line extending from the front end of the operating part between the upper end of the front wall and the lid wall and to the front end of the side wall, and the rear break line extending from the rear end of the operating part between the upper end of the rear wall and the lid wall and to the rear end of the side wall. As a result, by inserting a hand into the operating part and operating it outward and upward, the pair of side walls can be broken along the front break line and the rear break line, respectively, and the outer peripheral wall can be separated into the bottom wall side and the lid wall side. Since the container can be opened with a single action in this way, the ease of opening the paper container can be improved.

[0008] The POP display section is broken at a portion that continues along the POP break line, and folded along the POP fold line. This allows the POP display section to be in a POP display state protruding from the front wall, thereby achieving a sales promotion effect for the stored items. Furthermore, a front opening that exposes the internal items is provided between the POP display section and the lid wall. This allows the items to be seen from the front side through the front opening even when the paper containers are stacked before opening, thereby achieving a sales promotion effect in this respect as well. Effect of the Invention

[0009] The present invention can improve the ease of opening a paper container provided with a pop display portion for sales promotion. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a state in which a paper container according to a first embodiment of the present invention is used. [Diagram 2] FIG. 2 is a front perspective view showing the sealed state of the paper container of FIG. [Diagram 3] FIG. 2 is a rear perspective view showing the paper container of FIG. 1 in a sealed state. [Figure 4] Cross-sectional view taken along line IV-IV in Figure 2. [Diagram 5] FIG. 3 is a plan view showing the paper container blank of FIG. 2. [Figure 6] Cross-sectional view taken along line VI-VI in Figure 5. [Figure 7] FIG. 3 is a perspective view showing the paper container of FIG. 2 in an opened state. [Figure 8] FIG. 11 is a perspective view showing a state in which a paper container according to a second embodiment is used. [Figure 9] FIG. 9 is a front perspective view showing the sealed state of the paper container of FIG. 8. [Figure 10] FIG. 9 is a rear perspective view showing the paper container of FIG. 8 in a sealed state. [Figure 11] FIG. 10 is a plan view showing the paper container blank of FIG. [Figure 12] FIG. 11 is a front perspective view showing a modified example of a paper container. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0012] (First embodiment) 1 to 4, a paper container 10 according to a first embodiment of the present invention is provided with a pop display section 45 on which an advertisement for the contained item is printed, and is arranged on a display stand with a rectangular shape containing multiple items, thereby promoting the sales of the items. This paper container 10 is a so-called intermediate box, and is transported, for example, with multiple items contained in a cardboard box (outer box) not shown.

[0013] In the attached drawings, the X direction is the front-to-back direction, the direction indicated by the arrow is the front side, and the direction opposite the arrow is the rear side. The Y direction is the width direction (left-right direction), the direction indicated by the arrow is the left side, and the direction opposite the arrow is the right side. The Z direction is the height direction (up-down direction), the direction indicated by the arrow is the top side, and the direction opposite the arrow is the bottom side.

[0014] The paper container 10 is formed by folding and pasting a blank shown in Fig. 5 at predetermined locations. The part indicated by the dashed dotted line in Fig. 5 is a general-purpose crease formed by scoring from the front surface (the surface located on the outside of the paper container 10) so as to compress the wall thickness. The part indicated by the solid line in Fig. 5 is a cutting line formed by cutting with a blade from the front surface to the back surface (the surface located on the inside of the paper container 10) and a shape line (side) formed by punching.

[0015] The blank of the paper container 10 is formed by punching out a single layer of cardboard (coated cardboard) using a known paper container punching device. However, the paper container 10 may be formed from a known paper corrugated cardboard sheet having a corrugated core between a front liner and a back liner, as long as the thickness is 1.5 mm or less.

[0016] 2 and 3, the paper container 10 includes a cylindrical outer peripheral wall 12, a bottom wall 20 that closes the bottom of the outer peripheral wall 12, and a lid wall 30 that covers the upper end of the outer peripheral wall 12. The pop display unit 45 is provided so as to be continuous with the upper end of the front wall 13 that constitutes the outer peripheral wall 12.

[0017] The paper container 10 has a front opening 37 between the pop display section 45 and the lid wall 30, and a rear opening 38 between the rear wall 14 and the lid wall 30, through which the stored items can be exposed. The pair of side walls 15 constituting the outer peripheral wall 12 are each provided with breaking lines 51, 52 for opening, and by breaking along these lines, the paper container 10 can be separated into the bottom wall 20 side and the lid wall 30 side and opened like a tray (see FIG. 7).

[0018] The configurations of the outer wall 12, the bottom wall 20, the cover wall 30, the pop display portion 45, and the tear lines 51, 52 for opening will be specifically described below in this order.

[0019] (Configuration of the outer wall) 2 and 3, the outer peripheral wall 12 is in the shape of a rectangular tube and includes a front wall 13, a rear wall 14, and a pair of side walls 15. The pair of side walls 15 are connected to the front wall 13 and the rear wall 14 via bent portions (ridge portions) 18 extending in the height direction. However, the pair of side walls 15 may be connected to the front wall 13 or the rear wall 14 via an inclined chamfered wall. In other words, the outer peripheral wall 12 may be in the shape of a hexagonal tube or an octagonal tube. Hereinafter, of the pair of side walls 15, the one located on the left side in FIG. 2 may be referred to as the left side wall (one side wall) 15, and the one located on the right side in FIG. 2 may be referred to as the right side wall (the other side wall) 15.

[0020] The front wall 13 and the rear wall 14 are rectangular and extend along the YZ plane, and are disposed opposite each other with a gap in the front-rear direction. The pair of side walls 15 are identical rectangular and extend along the XZ plane, and are disposed opposite each other with a gap in the width direction, and the dimensions in the front-rear direction are larger than the dimensions in the width direction of the front wall 13 and the rear wall 14. Referring to Fig. 1, the rear wall 14 is composed of a rear wall main body 16 continuing to the right side wall 15 and an attachment margin 17 continuing to the left side wall 15, and are attached with an adhesive (for example, hot melt).

[0021] 5, the attachment margin 17, the left side wall 15, the front wall 13, the right side wall 15, and the rear wall main body 16 are connected in this order from left to right via a fold line 18a that constitutes the folding portion 18. The fold line 18a is formed by a general-purpose crease.

[0022] 2 to 4, a pop display portion 45 is connected to the upper end of the front wall 13 via a pop fold line 47, which will be described in detail later. In other words, the outer end in the width direction of the pop fold line 47 is the upper end and outer end in the width direction of the front wall 13 in this embodiment. The upper end of the rear wall 14 terminates without any member being connected thereto. In other words, the outer end in the width direction of the upper edge of the rear wall 14 is the upper end and outer end in the width direction of the rear wall 14 in this embodiment.

[0023] The total height of the front wall 13, i.e., the height dimension from the bottom wall 20 to the pop fold line 47, is smaller than the total height of the rear wall 14, i.e., the height dimension from the bottom wall 20 to the top end of the rear wall 14. The total height of the front wall 13 and the pop display portion 45, i.e., the height dimension from the bottom wall 20 to the top end of the pop display portion 45, is also smaller than the height dimension of the rear wall 14. The total height of the side wall 15, i.e., the height dimension from the bottom wall 20 to the top end of the side wall 15 (fold portions 31, 35 described in detail later), is greater than the height dimensions of either the front wall 13 or the rear wall 14 including the pop display portion 45.

[0024] (Bottom wall configuration) 1 and 4, the bottom wall 20 is of a one-touch type that can close the bottom of the outer peripheral wall 12 by opening the front wall 13, the rear wall 14, and the pair of side walls 15 into a cylindrical shape. The bottom wall 20 has a rectangular shape extending along the XY plane, and is composed of a pair of long flaps 21 and short flaps 22. The pair of long flaps 21 are generally trapezoidal in shape and are connected to the pair of side walls 15 via bent portions 23. The pair of short flaps 22 are generally trapezoidal in shape and are connected to the front wall 13 and the rear wall 14 via bent portions 24.

[0025] 5, the pair of long flaps 21 are connected to the lower ends of the pair of side walls 15 via fold lines 23a constituting the folding portion 23. The long flaps 21 are connected to the attachment portions 21a via fold lines 21b. The short flaps 22 are connected to the lower ends of the front wall 13 and the rear wall main body 16 via fold lines 24a constituting the folding portion 24. The fold lines 21b, 23a, 24a are all formed by general-purpose creases.

[0026] The long flap 21 is folded in a mountain shape relative to the side wall 15, and the short flap 22 is folded in a mountain shape relative to the front wall 13 and the rear wall main body 16, and then the attachment portion 21a is folded in a valley shape relative to the long flap 21. Next, the left side wall 15 is folded in a mountain shape relative to the front wall 13, and the rear wall main body 16 is folded in a mountain shape relative to the right side wall 15. Then, the overlapping rear wall main body 16 and the attachment margin 17, and the attachment portion 21a and the short flap 22 are attached to each other with an adhesive (for example, hot melt).

[0027] This forms a continuous cylindrical outer peripheral wall 12 consisting of the front wall 13, the rear wall 14, and a pair of side walls 15. Moreover, by expanding the outer peripheral wall 12 into a rectangular cylindrical shape, the long flap 21 rotates relative to the side wall 15, and the short flap 22 rotates relative to the front wall 13 and the rear wall 14, and the bottom of the outer peripheral wall 12 is closed in one action by the bottom wall 20. However, the bottom wall 20 may be configured as an interlock type or a general-purpose flap consisting of a pair of outer and inner flaps, which cannot automatically close the bottom of the outer peripheral wall 12 even if the front wall 13, the rear wall 14, and the pair of side walls 15 are opened into a cylindrical shape.

[0028] (Cover wall configuration) 2 to 4, the cover wall 30 is connected to the upper end of the left side wall 15 and is provided to cover the upper end of the outer peripheral wall 12, i.e., the space between the upper ends of the pair of protruding side walls 15. An insertion piece 32 is connected to the tip of this cover wall 30 and is inserted so as to overlap the inside of the right side wall 15. In addition, an inner flap 34 that supports the underside of the cover wall 30 is connected to the right side wall 15. However, the cover wall 30 may be connected to the right side wall 15, and the inner flap 34 may be connected to the left side wall 15.

[0029] The cover wall 30 has a rectangular shape extending along the XY plane with roughly the same dimensions as the bottom wall 20, is connected to the upper end of the left side wall 15 via a bent portion 31, and is disposed above the bottom wall 20 in a spaced relationship. The front and rear ends of the cover wall 30 terminate without being connected to any other members.

[0030] The insertion piece 32 is connected to the cover wall 30 via a bent portion 33, and prevents the cover wall 30 from being opened in the sealed state due to the repulsive force of the cover wall 30. The insertion piece 32 is a strip extending along the XZ plane, and protrudes from the central region of the tip of the cover wall 30. More specifically, the width of the insertion piece 32 in the front-rear direction is smaller than the dimension of the cover wall 30 in the front-rear direction, and in this embodiment, it is set to approximately half the dimension of the cover wall 30 in the front-rear direction.

[0031] 3 to 5, the inner flap 34 is connected to the upper end of the right side wall 15 via a bent portion 35, and supports the cover wall 30 from below. The inner flap 34 is a rectangular shape extending along the XY plane, and protrudes from the entire upper end of the right side wall 15. The inner flap 34 is provided with an insertion hole 36 for inserting the insertion piece 32. The insertion hole 36 is provided so as to be located on the bent portion 35, and is configured by a cutting line. A notch 36a is provided at the center of the insertion hole 36 in the front-rear direction, which is cut toward the tip side of the inner flap 34. However, the insertion hole 36 may be configured by a groove of a predetermined width.

[0032] 2 to 4, a front opening 37 is formed between the cover wall 30 and the pop display portion 45, which has an overall height lower than that of the side walls 15. This front opening 37 is defined by the upper end of the pop display portion 45, the front ends of the pair of side walls 15, and the front end of the cover wall 30. The front opening 37 is formed by the difference in overall height between the pair of side walls 15, the upper ends of which are covered by the cover wall 30, and the front wall 13, which includes the pop display portion 45. The relationship between these heights will be described in detail later.

[0033] A rear opening 38 is formed between the cover wall 30 and the rear wall 14, which has a lower overall height than the side walls 15. This rear opening 38 is defined by the upper end of the rear wall 14, the rear ends of the pair of side walls 15, and the rear end of the cover wall 30. The rear opening 38 is formed by the difference in overall height between the pair of side walls 15, the upper ends of which are covered by the cover wall 30, and the rear wall 14. The relationship between these heights will be described in detail later.

[0034] 5, the cover wall 30 is connected to the upper end of the left side wall 15 via a fold line 31a constituting the fold portion 31. The insertion piece 32 is connected to the upper end of the cover wall 30 via a fold line 33a constituting the fold portion 33. The inner flaps 34 are each connected to the upper end of the right side wall 15 via a fold line 35a constituting the fold portion 35. The fold line 35a is not provided in the area where the insertion hole 36 is formed. The fold lines 31a, 33a, and 35a are all formed by general-purpose creases.

[0035] 3 and 4, the insertion piece 32 and the right side wall 15 are provided with a connecting portion 39 for connecting them so that they are difficult to separate. This connecting portion 39 is composed of a locking hole 40 provided in the insertion piece 32 and a locking projection 41 provided in the right side wall 15. However, the locking hole 40 may be provided in the right side wall 15, and the locking projection 41 may be provided in the insertion piece 32.

[0036] 4 and 5, the locking hole 40 is provided in the center of the insertion piece 32 in the front-rear and height directions, and extends in the front-rear direction. The locking hole 40 is configured by a cutting line including a semicircular curved portion 40a that curves so as to protrude downward (upward in FIG. 5), which is the tip side of the insertion piece 32, and a pair of straight portions 40b that are connected to both ends of the curved portion 40a. The straight portions 40b are inclined downward in the front-rear direction as they move away from the curved portion 40 in order to improve the insertability of the locking projection 41.

[0037] 4 and 6, the locking projection 41 is provided to be locked to the cut edge of the locking hole 40 by being inserted into the locking hole 40, and to prevent removal from the locking hole 40, i.e., removal of the insertion piece 32 from the insertion hole 36. The locking projection 41 is provided in a generally W-shaped notch 42 provided in the center of the upper end of the right side wall 15, and protrudes from the center of the notch 42. More specifically, the locking projection 41 includes a projection body 41a and a pair of locking pieces 41b.

[0038] The projection body 41a has a width equal to or greater than the maximum width (dimension between both ends of the semicircle) of the curved portion 40a of the locking hole 40 in the front-rear direction. The pair of locking pieces 41b are provided adjacent to each other on both sides of the projection body 41a in the front-rear direction by providing a pair of cutting lines in a generally L-shape. The lower edges of the pair of locking pieces 41b each extend parallel to the pair of straight portions 40b of the locking hole 40. In the front-rear direction, the dimension between the outer ends of the pair of locking pieces 41b is smaller than the dimension between the outer ends of the pair of straight portions 40b.

[0039] When inserting the insertion piece 32 into the insertion hole 36, the locking projection 41 is inserted into the inside of the insertion piece 32 through the locking hole 40, so that the lower edge of the locking piece 41b locks with the cut edge of the straight portion 40b of the locking hole 40. This makes it possible to prevent the locking projection 41 from coming off the locking hole 40, and therefore to prevent the insertion piece 32 from coming off the insertion hole 36.

[0040] (Configuration of the pop-up display section) 1 and 2, the POP display section 45 is provided to promote sales of the stored items by being disposed so as to protrude from the front side of the front wall 13 when the container is in the tray-like opened state. The POP display section 45 is provided on the upper side of the front wall 13 and partitioned by a pair of POP breaking lines 46 and one POP folding line 47. The POP display section 45 of this embodiment is composed of a folded-back section 45a continuing to the front wall 13, and a display main body section 45b folded back to the inner side of the folded-back section 45a.

[0041] 2 and 5, a pair of pop break lines 46 are provided on the folding portion 18 (fold line 18a) located between the front wall 13 and the side wall 15 and on the outer side of the front wall 13 in the width direction so as to be spaced apart in the width direction, and extend upward from the upper end of the front wall 13. In other words, the pop break lines 46 extend in the up-down direction from the upper end of the front wall 13. In the sealed state shown in FIG. 2, the pop break lines 46 form part of the folding portion 18.

[0042] The pop break line 46 is composed of perforations that provide a plurality of cut lines at breakable intervals. The breakable interval means a distance at which adjacent cut lines can easily connect to each other when broken by the application of an external force. Referring to FIG. 6, a guide line 46a extending into the side wall 15 is provided at the lower end of the uppermost cut line among the plurality of cut lines. This guide line 46a is composed of cut lines and is inclined downward toward the rear side.

[0043] 2 and 5, the pop fold line 47 is provided between the pair of pop break lines 46, more specifically, from the lower end of each of the pair of pop break lines 46, and extends in the width direction along the bottom wall 20. However, as long as the pop display portion 45 can be bent with respect to the front wall 13, the pop fold line 47 may be inclined with respect to the bottom wall 20 or curved upward or downward.

[0044] The pop fold line 47 is formed by a lead crease in which a plurality of cut lines are provided on a general crease at intervals that make it difficult to break the line. The intervals that make it difficult to break the line refer to a distance at which adjacent cut lines are unlikely to connect to each other due to the application of an external force, that is, a distance at which the break may proceed in a direction different from that of the adjacent cut lines. Referring to FIG. 6, the pop fold line 47 of this embodiment is connected to the lower end of the pop break line 46 via a cut line 47a that is inclined upward as it approaches the outside in the width direction. The intersection of this cut line 47a and the pop break line 46 is the strict upper end and outer end in the width direction of the front wall 13 in this embodiment.

[0045] 2 and 5, the folded portion 45a of the POP display portion 45 is located between a pair of POP break lines 46 and is connected to the front wall 13 via a POP fold line 47. In other words, the folded portion 45a is partitioned from the front wall 13 and the pair of side walls 15 by the pair of POP break lines 46 and one POP fold line 47. The folded portion 45a is generally rectangular in shape having the same width as the width of the front wall 13 in the width direction. The folded portion 45a is visible from the front side in the sealed state shown in FIG. 2, and is located on the back side of the display main body portion 45b in the POP display state shown in FIG. 1 and is not visible from the front side.

[0046] 1, 2, and 4, the display body 45b of the POP display unit 45 is connected to the upper end of the folded portion 45a via the POP folding portion 48, folded back to the inner side of the folded portion 45a, and attached with an adhesive (e.g., hot melt) shown by an elliptical broken line. The display body 45b is rectangular and slightly smaller than the width of the front wall 13 and the folded portion 45a. More specifically, a gap as small as possible is secured between the display body 45b and the pair of side walls 15 without interfering with each other. In the sealed state shown in FIG. 2, the display body 45b is located on the back side of the folded portion 45a and cannot be seen from the front side, but in the POP display state shown in FIG. 1, it is visible from the front side.

[0047] 5 and 6, the fold line 48a constituting the pop fold portion 48 is formed by a lead crease similar to the pop fold line 47. The fold line 48a is connected to the upper end of the pop break line 46 via an inclined edge 48b that is inclined downward toward the outside in the width direction.

[0048] Here, the relationship in height between the pop display section 45, the front wall 13, the side wall 15 and the front opening 37, and the relationship in height between the rear wall 14, the side wall 15 and the rear opening 38 will be described.

[0049] 2, the height T1 from the lower end (bottom wall 20) of the front wall 13 to the pop fold line 47 corresponds to the total height of the front wall 13. The height T2 from the pop fold line 47 to the pop fold portion 48 corresponds to the total height of the folded portion 45a. The height T3 from the pop fold portion 48 to the lower end of the display main body portion 46b corresponds to the total height of the display main body portion 46b. The height T4 from the pop fold portion 48 to the front end of the cover wall 30 corresponds to the total height of the front opening 37. Referring to FIG. 3, the height T5 from the lower end (bottom wall 20) of the rear wall 14 to the upper end of the rear wall 14 where it terminates corresponds to the total height of the rear wall 14. The height T6 from the upper end of the rear wall 14 to the rear end of the cover wall 30 corresponds to the total height of the rear opening 38. The height obtained by adding the heights T1, T2, and T4 and the height obtained by adding the heights T5 and T6 correspond to the total height of the side wall 15.

[0050] 2 together with FIG. 5, the height T4 of the front opening 37 is lower than the height T1 (T1+T2) of the front wall 13 including the height T2 of the folded-back portion 45a (pop display portion 45). Although it depends on the thickness of each item in the front-rear direction in the sealed state, if the height T4 of the front opening 37 is made too high, there is a possibility that an item may be removed from the front opening 37 in the sealed state. On the other hand, if the height T4 of the front opening 37 is made too low, the exposed area of ​​the inside is reduced, making it difficult to obtain the sales promotion effect in the sealed state. In order to prevent these inconveniences, it is preferable that the height T4 of the front opening 37 is set in the range of 20% to 50% of the total height (T1+T2+T4) of the side wall 15, and the height (T1+T2) of the front wall 13 including the pop display portion 45 is set in the range of 50% to 80%. In this embodiment, the height T4 is set to 40% of the total height (T1+T2+T4), and the height (T1+T2) is set to 60%. Incidentally, the actual size of the lower limit of the height (T1+T2) is 40 mm.

[0051] Among the heights T1 to T4, in the present embodiment, the height T2 of the folding portion 45a is the lowest, and in the order of the height T3 of the display main body portion 46b, the height T1 of the front wall 13, and the height T4 of the front opening 37, they gradually increase (T2 < T3 < T1 < T4). However, these heights T1 to T4 can be changed as needed as long as the height (T1 + T2) of the front wall 13 including the pop-up display portion 45 and the height T4 of the front opening 37 with respect to the total height (T1 + T2 + T4) of the side wall 15 are set within the above ranges.

[0052] Referring to FIGS. 2 and 3, the height T5 of the rear wall 14 is higher than the height (T1 + T2) of the front wall 13 including the pop-up display portion 45, and the height T6 of the rear opening 38 is lower than the height T4 of the front opening 37. This is because when the paper container 10 is displayed in a sealed state, the rear wall 14 side is arranged on the back side that is not visible to the consumer, so the sales promotion effect cannot be expected more than the front wall 13 side. However, the height T6 of the rear opening 38 may be made equal to the height T4 of the front opening 37. Also, when an article is suspended and displayed on the suspension bar provided on the display stand, the rear opening 38 is used as an entrance for inserting the suspension bar. Therefore, if the height T6 of the rear opening 38 is made excessively low, the workability of inserting the suspension bar may be impaired. Thus, with respect to the total height (T5 + T6) of the side wall 15, the height T6 of the rear opening 38 is preferably set in the range of 20% or more and 50% or less, and the height T5 of the rear wall 14 is preferably set in the range of 50% or more and 80% or less. And in the present embodiment, with respect to the total height (T5 + T6), the height T6 is set to 25%, and the height T5 is set to 75%.

[0053] (Configuration of the break line for opening) Referring to FIGS. 2 to 4, the break lines 51 and 52 are provided to break the side wall 15 in the front-rear direction and separate the paper container 10 into the bottom wall 20 side and the lid wall 30 side. Specifically, an operation portion 50 for opening operation is provided on each of the pair of side walls 15. The front break line 51 is provided on the front side of the operation portion 50, and the rear break line 52 is provided on the rear side of the operation portion 50.

[0054] The operating unit 50 is provided at approximately the center of the side wall 15 in the front-rear direction. The operating unit 50 is configured by a hole penetrating the side wall 15 in the width direction. However, the operating unit may be configured by a cut-out portion surrounded by a break line, or a cut-and-raised portion surrounded by a single fold line and a break line. The operating unit 50 of this embodiment is approximately a right-angled trapezoid, and the oblique side 50a is inclined downward as it approaches the front side.

[0055] The front break line 51 is connected to the front end of the operating portion 50, more specifically, to the front end of the oblique side 50a, and extends to the upper end and widthwise outer end of the front wall 13 (the front end of the side wall 15). The front end of the front break line 51 is located at a breakable distance from the widthwise outer end of the pop fold line 47 (cutting line 47a) and the lower end of the pop break line 46. In other words, extending to the upper end and widthwise outer end of the front wall 13 is not limited to the geometrically strict meaning that the front end of the front break line 51 is connected to the widthwise outer end of the pop fold line 47, but may be configured such that the front end of the front break line 51 is located at a breakable distance from the lower end of the pop break line 46 and the outer end of the pop fold line 47.

[0056] The front break line 51 of this embodiment extends in the front-rear direction so as to be parallel to the bottom wall 20. However, the front break line 51 may be inclined or curved with respect to the bottom wall 20, and the overall shape of the front break line 51 can be changed as necessary. The front break line 51 is configured as a one-sided zipper consisting of a plurality of V-shaped cutting lines. More specifically, the one-sided zipper is configured as a plurality of first cutting lines provided at breakable intervals along a determined breaking trajectory, and a second cutting line connected to one end of each of the first cutting lines. In the front break line 51, the second cutting lines constituting the one-sided zipper are connected to the rear end (the operation unit 50 side) of the first cutting lines, and are inclined upward toward the rear side.

[0057] The rear break line 52 is connected to the rear end of the operating portion 50, more specifically, to the rear end of the oblique side 50a, and extends to the upper end and widthwise outer end (rear end of the side wall 15) where the rear wall 14 terminates. The rear end of the rear break line 52 is located at a breakable distance from the lower side edge of the rear opening 38, which is the upper end and widthwise outer end of the rear wall 14. In other words, extending to the upper end and widthwise outer end of the rear wall 14 is not limited to a geometrically strict meaning that the rear end of the rear break line 52 is connected to the upper end and widthwise outer end of the rear wall 14, but may be configured so that the rear end of the rear break line 52 is located at a breakable distance from the upper end and widthwise outer end of the rear wall 14.

[0058] The rear break line 52 in this embodiment extends at an incline upward toward the rear side. However, the rear break line 52 may be curved, and its overall shape can be changed as necessary. This rear break line 52 is configured with a one-sided zipper similar to the front break line 51. In the rear break line 52, the second cut line that configures the one-sided zipper is connected to the front end (the operation unit 50 side) of the first cut line, and is inclined upward toward the front side.

[0059] Next, a method of using the paper container 10 thus constructed will be described.

[0060] First, when opening the paper container 10 in the sealed state shown in Figures 2 and 3, a hand is inserted into the operating part 50 from the outside in the width direction, and the inner side of the pair of side walls 15 above the oblique side 50a is grasped and operated outward and upward. This causes the pair of side walls 15 to break along the front break line 51 and the rear break line 52. When the side walls 15 are broken up to the front end of the front break line 51, the pop display part 45 is subsequently broken along the pop break line 46 relative to the side walls 15. On the other hand, when the side walls 15 are broken up to the rear end of the rear break line 52, the rear opening 38 is reached and the breaking on the rear side stops.

[0061] This allows the outer peripheral wall 12 to be separated into the bottom wall 20 side and the lid wall 30 side, as shown in Fig. 7. Here, the insertion piece 32 continuing to the lid wall 30 is connected to the right side wall 15 by a connecting portion 39. This prevents the upper part of the right side wall 15 from being separated from the lid wall 30 when opened. In other words, the upper part of the left side wall 15, the lid wall 30 including the insertion piece 32, and the upper part of the right side wall 15 can be separated as a single unit. Moreover, since both the front and rear ends of the lid wall 30 are terminated, the upper part of the paper container 10 can be separated in the form of a flat sheet.

[0062] When the paper container 10 has been opened, the upper end of the POP display part 45 is grasped and folded downward toward the front along the POP fold line 47. This creates a POP display state in which the POP display part 45 protrudes forward from the front wall 13, as shown in Fig. 1. In this state, a consumer standing in front of the paper container 10 can easily see the display main body part 45b and the product, thus achieving a sales promotion effect.

[0063] On the other hand, when displaying an article by hanging it from the hanging rod of the display stand, the hanging rod is inserted from the rear opening 38, passed through the hanging hole of the article, and penetrated through the front opening 37. In this state, the lid wall 30 is located above the hanging rod, and the bottom wall 20 is located below the hanging rod. In this state, the paper container 10 is opened in the same manner as described above. As a result, the separated bottom wall 20 side of the paper container 10 is pulled downward, and the lid wall 30 side is pulled forward from the upper side of the hanging rod, completing the display of the article.

[0064] The paper container 10 constructed in this manner has the following features.

[0065] The side wall 15 is provided with a front break line 51 and a rear break line 52, the front break line 51 extending from the front end of the operating part 50 to the upper end of the front wall 13 and the front end of the side wall 15, and the rear break line 52 extending from the rear end of the operating part 50 to the upper end where the rear wall 14 terminates and the rear end of the side wall 15. As a result, by inserting a hand into the operating part 50 and operating it outward and upward, the pair of side walls 15 can be broken along the front break line 51 and the rear break line 52, respectively, and the outer peripheral wall 12 can be separated into the bottom wall 20 side and the lid wall 30 side. Since the paper container 10 can be opened with a single action in this manner, the ease of opening the paper container 10 can be improved.

[0066] The POP display section 45 is broken from the side wall 15 that is connected along the POP breaking line 46, and folded along the POP folding line 47. This allows the POP display section 45 to be protruded from the front wall 13 in a POP display state, thereby achieving a sales promotion effect for the stored items. Furthermore, a front opening 37 that exposes the inside is provided between the POP display section 45 and the cover wall 30. This allows the items to be seen from the front side through the front opening 37 even when the paper containers 10 are stacked before opening, thereby achieving a sales promotion effect in this respect as well.

[0067] A rear opening 38 that exposes the internal items is provided between the upper end of the rear wall 14 and the cover wall 30. As a result, when displaying an item by hanging it from a hanging rod provided on the display stand, the hanging rod is inserted from the rear opening 38 and passed through the hanging hole of the item to penetrate the front opening 37. By opening the paper container 10 in this state, the display of the item is completed, thereby improving workability at the retail store.

[0068] The POP display part 45 has a folded part 45a that is connected to the front wall 13 via a POP fold line 47, and a display main body part 45b that is folded back and attached to the inner side of the folded part 45a. This allows the POP display part 45, which has been broken along the POP break line 46, to be folded along the POP fold line 47, so that the display main body part 45b can be made visible from the front side. In addition, the blank for the paper container 10 is printed only on the front side, and there is no need to print on the back side. This improves the productivity of the paper container 10 and reduces manufacturing costs.

[0069] The POP break line 46 is provided on the bent portion 18 located on the outer side of the front wall 13 in the width direction, and extends upward from the upper end of the front wall 13. As a result, when the side wall 15 is broken along the front break line 51 by operating the operating portion 50, the POP display portion 45 can be subsequently broken and separated from the side wall 15 along the POP break line 46. This improves the ease of opening the paper container 10. Moreover, since the width of the display main body portion 45b of the POP display portion 45 can be secured, the freedom of advertising display can be improved, and a sales promotion effect can be reliably obtained.

[0070] The lid wall 30 is connected to the left side wall 15, and an insertion piece 32 connected to the right side wall 15 by a connecting part 39 is connected to the tip of the lid wall 30. This prevents the upper part of the right side wall 15 from being separated from the lid wall 30 when opened. In other words, the upper part of the left side wall 15, the lid wall 30 including the insertion piece 32, and the upper part of the right side wall 15 can be separated as a single unit. Moreover, since both the front and rear ends of the lid wall 30 are terminated, the upper part of the paper container 10 can be separated in the form of a flat sheet. This prevents the upper part of the paper container 10 from being bulky when discarded, improving convenience at the retail store.

[0071] The connecting portion 39 is composed of a locking hole 40 provided in the insertion piece 32 and a locking projection 41 including a locking piece 41b provided on the right side wall 15 that locks onto the edge of the locking hole 40. This allows the right side wall 15 and the insertion piece 32 to be easily and reliably connected simply by inserting the locking projection 41 into the locking hole 40, thereby improving the workability of sealing the paper container 10 containing an article.

[0072] Other embodiments and various modifications of the present invention will be described below, but in these descriptions, points that are not particularly mentioned are the same as those in the first embodiment. In the drawings referred to below, the same elements as those in the first embodiment are given the same reference numerals.

[0073] Second embodiment 8 to 10, the paper container 10 of the second embodiment differs from the paper container 10 of the first embodiment in that the width of the folded portion 45a constituting the pop display section 45 is narrower than the width of the folded portion 45a shown in Fig. 2, and the total height of the rear wall 14 is higher than the rear wall 14 shown in Fig. 3, so that no rear opening 38 is provided. In other words, the rear wall 14 of the second embodiment is formed to have the same height as the side wall 15.

[0074] 8 and 9, the pop break line 46 is located on the widthwise inner side with a gap from the fold portion 18 located on the widthwise outer side of the front wall 13, and extends downward from the upper end of the front wall 13. However, the pop break line 46 of the second embodiment may be inclined or curved with respect to the fold portion 18. The pop fold line 47 is formed by a lead crease as in the first embodiment, and is connected to the lower end of the pop break line 46 via an arc-shaped cutting line. As a result, in the opened state shown in FIG. 8, a pair of remaining portions 13a protruding above the pop fold line 47 are secured in the front wall 13. The upper end and widthwise outer end of the remaining portion 13a is the upper end and widthwise outer end of the front wall 13 in this embodiment.

[0075] The folded portion 45a of the POP display portion 45 is defined within the front wall 13 by a pair of POP break lines 46 and one POP fold line 47, and is connected to the front wall 13 via the POP fold line 47. The upper end of this folded portion 45a and the upper end of the remaining portion 13a of the front wall 13 are located at the same height.

[0076] The display body 45b is connected to the folded portion 45a via the pop bend 48, folded back to the inner side of the folded portion 45a, and attached with an adhesive. The overall height of the display body 45b in this embodiment is lower than the overall height of the folded portion 45a. With reference to Figs. 8 and 11, the display body 45b includes a pair of protruding portions 45c that protrude outward in the width direction from both sides of the folded portion 45a. The protruding portions 45c are connected to the main portion of the display body 45b via a fold curve 45d formed of a general-purpose crease, and are located inside the front wall 13 in the sealed state shown in Fig. 9. The protruding portions 45c and the remaining portion 13a of the front wall 13 are partitioned by a cut line.

[0077] In the second embodiment configured as described above, after the paper container 10 is opened in the same manner as in the first embodiment, the pop display part 45 is folded to the front side of the front wall 13 along the pop folding line 47. This allows the protruding part 45c to be positioned to the front side of the front wall 13 while being folded along the folding line 45d.

[0078] The front break line 51 is connected to the front end of the operating part 50 and extends obliquely to the upper end of the remaining part 13a, which is the upper end of the front wall 13, and the outer end in the width direction (the front end of the side wall 15). The rear break line 52 is connected to the rear end of the operating part 50 and extends obliquely to the rear upper end of the side wall 15, which is the upper end where the rear wall 14 terminates and the outer end in the width direction. However, the front break line 51 and the rear break line 52 may be curved, and the overall shape can be changed as necessary.

[0079] With the paper container 10 of the second embodiment configured in this manner, it is not possible to improve the ease of hanging items from the hanging rods on the display stand, but in all other respects, it is possible to obtain the same functions and effects as the paper container 10 of the first embodiment.

[0080] Moreover, the pop breaking line 46 of the second embodiment is located at a distance from the folded portion 18 located at the widthwise outer side of the front wall 13 on the widthwise inner side, and extends downward from the upper end of the front wall 13. As a result, in the opened state, both side portions of the folded portion 45a remain as the front wall 13, and the remaining portions 13a function as walls to prevent the article from falling forward, improving the stability of the article in the opened state. Also, in the sealed state, the remaining portions 13a of the front wall 13 ensure the total height of the front wall 13, so that removal of the article through the front opening 37 can be effectively prevented.

[0081] The display main body 45b includes a pair of protruding parts 45c that protrude outward in the width direction beyond both sides of the folded-back part 45a and are positioned inside the front wall 13. This ensures a sufficient width for the display main body 45b of the POP display unit 45, improving the freedom of advertisement display and ensuring a sales promotion effect.

[0082] The present invention is not limited to the configurations of the above-described embodiments, and various modifications are possible.

[0083] For example, the overall height of the rear wall 14 of the first embodiment shown in Figure 3 may be made higher like the rear wall 14 of the second embodiment shown in Figure 10, and the paper container 10 of the first embodiment may also be configured without having a rear opening 38.

[0084] The pop break line 46 of the first embodiment shown in Figure 2 may be arranged at a distance widthwise inward from the bend portion 18, like the pop break line 46 of the second embodiment shown in Figure 9, so that the remaining portion 13a of the front wall 13 of the first embodiment can be ensured.

[0085] 12, the front break line 51 may be configured to extend from the front end of the operating unit 50 between the upper end of the pop display unit 45 (front wall 13) and the cover wall 30, that is, above the upper end of the front wall 13 and to the front end of the side wall 15. The rear break line 52 may be configured with a first portion 52a extending from the rear end of the operating unit 50 to below the upper end of the rear wall 14, and a second portion 52b extending from the rear end of the first portion 52a to the upper end of the rear wall 14.

[0086] 12, the rear break line 52 may be configured to extend from the rear end of the operating unit 50 between the upper end of the rear wall 14 and the cover wall 30, that is, above the upper end of the rear wall 14 and to the rear end of the side wall 15. Also, like the rear break line 52 shown in FIG. 12, the front break line 51 may be configured with a first portion extending from the front end of the operating unit 50 to below the upper end of the front wall 13, and a second portion extending from the front end of the first portion to the upper end of the front wall 13.

[0087] The pop display portion 45 is not limited to a configuration having a folded portion 45a and a display main body portion 45b attached to the inside of the folded portion 45a, but can be modified as necessary as long as it is configured to be partitioned into the front wall 13 by a pair of pop break lines 46 extending in the vertical direction from the upper end of the front wall 13 and a pop fold curve 47 provided between the pair of pop break lines 46.

[0088] The connecting portion 39 may be made of tape, and can be modified as necessary as long as it is configured to connect the insertion piece 32 and the right side wall 15 in a manner that makes them difficult to separate.

[0089] As long as the pop break line 46, the front break line 51, and the rear break line 52 can be broken along a specified break trajectory, they may be composed of any of a perforation line consisting of a plurality of linear cutting lines, a one-sided zipper consisting of a plurality of V-shaped cutting lines, a Y-zipper consisting of a plurality of Y-shaped cutting lines, and a half-cut line that cuts half of the thickness. [Explanation of symbols]

[0090] 10 Paper containers 12 Peripheral wall 13 Front wall 13a Remaining part 14 Back wall 15 Left side wall (one side wall) 15 Right side wall (other side wall) 16 Back wall body 17. Fee 18 Bend section (ridge) 18a folding line 20 Bottom Wall 21 Long flap 21a Adhesive part 21b Folding line 22 Short flap 23 Bend part 23a folding line 24 Bend section 24a folding line 30 Lid wall 31 Bend section 31a folding line 32 Insert 33 Bend part 33a folding line 34 Inner flap 35 Bend section 35a folding line 36 insertion hole 36a Notch 37 Front opening 38 Rear opening 39 Connecting part 40 Locking hole 40a curved section 40b Straight section 41 Locking protrusion 41a Protrusion body 41b Locking piece 42 Cutout 45 Pop display section 45a Turning section 45b Display main body 45c protrusion 45d folding line 46 Pop Break Line 46a Guide Line 47 Pop fold curve 47a cutting line 48 Pop Bending Section 48a folding line 48b Sloped edge 50 Control section 50a Hypotenuse 51 Front break line 52 Rear break line 52a Part 1 52b Part 2

Claims

1. a cylindrical outer peripheral wall including a front wall, a pair of side walls connected to both sides of the front wall in a width direction, and a rear wall connected to the pair of side walls; A bottom wall that closes the bottom of the outer peripheral wall; A cover wall covering an upper end of the outer peripheral wall; a pop display section for displaying advertisements provided on the upper end side of the front wall; A paper container comprising: The POP display portion is defined by a pair of POP break lines extending vertically from the upper end of the front wall and spaced apart in the width direction, and a POP fold line extending between the pair of POP break lines in the width direction, The pair of side walls are higher than an upper end of the front wall including the pop display portion, A front opening for exposing the inside is provided between the upper end of the pop display unit and the cover wall, The pair of side walls include: An operation unit for opening the package; a front break line extending from a front end of the operating portion to a portion between an upper end of the front wall and the cover wall and to a front end of the side wall; a rear break line extending from the rear end of the operating portion to between the upper end of the rear wall and the cover wall and to the rear end of the side wall; These are paper containers each equipped with

2. The pair of side walls are higher than an upper end of the rear wall, The paper container according to claim 1 , wherein a rear opening for exposing the inside is provided between an upper end of the rear wall and the lid wall.

3. The pop-up display unit is A folded portion located between the pair of pop break lines and connected to the front wall via the pop fold line; a display main body portion that is connected to the upper end of the folded portion and is folded back and attached to the inner side of the folded portion; The paper container according to claim 1 or 2, comprising:

4. The paper container according to claim 3 , wherein the pop break line is provided on a ridge portion located on an outer side in the width direction of the front wall and extends upward from an upper end of the front wall.

5. the pop break line is spaced apart from a widthwise outer ridge of the front wall and extends downward from an upper end of the front wall; The paper container according to claim 3 , wherein the display main body portion includes a pair of protruding portions protruding widthwise outward beyond both sides of the folded portion and positioned inside the front wall.

6. The cover wall is connected to an upper end of one of the pair of side walls, and both front and rear ends are terminated. The paper container according to claim 1 or 2, wherein an insertion piece is connected to the tip of the lid wall and is inserted into the inside of the other of the pair of side walls and connected to the other side wall by a connecting portion.

7. The connecting portion is a locking hole provided in one of the other side wall and the insertion piece and extending in the front-rear direction; a locking projection provided on the other of the other side wall and the insertion piece and inserted into the locking hole; having The paper container according to claim 6 , wherein the locking projection includes a projection body and a pair of locking pieces that are provided adjacent to both sides of the projection body in the front-rear direction and that lock onto edges of the locking holes.

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