JP2018193114A - Packing box - Google Patents

Abstract

To provide a packing box that can keep in a tilted position the upper side plate on which information is displayed.SOLUTION: The packing box 1 of this invention includes a peripheral wall 1A whose second lower side opening part is formed on a side wall 11B, a lower side plate 40 provided in a state of extending from the lower end part of the second lower side opening part to the outside oblique upper part, an upper outside plate 41a (upper side plate 41) which is provided in a state of extending from the upper end part of the lower side plate 40 to the inside oblique upper part, and on whose upper surface the advertisement (information) is displayed, and an engaging part 39 which is formed on the side edge part of second lower side opening part and is engaged on both end parts in the left-right direction of the upper side plate 41 and keeps the upper outside plate 41a (upper side plate 41) in an inclined position.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a packaging box.

  Packaging boxes used for packaging and display of contents are known.

  For example, the display combined carton described in Patent Document 1 includes a rear plate piece connected to the lower portion of the side wall via a first horizontal folding line, and a front plate piece connected to the upper end portion of the rear plate piece via a second horizontal folding line. And a plate piece. The rear plate piece is bent outward at the first horizontal folding line, and the rear plate piece and the front plate piece are bent at the second horizontal folding line so that the inner surfaces thereof face each other (so as to overlap). The front plate piece is held in an inclined state so that a pattern or the like displayed on the surface of the front plate piece can be viewed from obliquely upward and forward by engaging the engaging portion.

Japanese Patent No. 4175713

  By the way, the force (repulsive force) which tries to return the front plate piece to the original part acts on the bent portion of the front plate piece and the rear plate piece. This repulsive force is considered to increase (increase) as the angle between the front plate piece and the rear plate piece decreases. In the above-described display combined carton, the front plate piece is bent so as to overlap the rear plate piece, and thus a strong repulsive force is applied to the bent portion. Due to this repulsive force, the front plate piece may be disengaged from the engaging portion, and the inclined posture of the front plate piece may not be maintained.

  In order to solve the above-described problems, the present invention provides a packaging box that can hold an upper plate displaying information in an inclined posture.

  In order to achieve the above-described object, the packaging box of the present invention includes a peripheral wall in which an opening is formed on a side surface, a lower plate provided in a state extending outward or obliquely upward from the lower edge of the opening, Provided in a state extending obliquely upward and inward from the front end portion of the lower side plate, formed on the upper side plate on which the information is displayed, and at the side edge of the opening, and intersects the vertical direction of the upper side plate. An engaging portion that engages with the end portion in the width direction and holds the upper plate in an inclined posture.

  In this case, the angle formed by the lower plate and the upper plate is preferably in the range of 70 degrees to 160 degrees.

  In this case, the upper plate extends obliquely downward toward the inside of the peripheral wall from the upper and outer plates provided in a state of extending obliquely upward and inward from the tip portion of the lower plate. It is preferable to include an upper inner plate that is provided in a state and that forms a cut portion that sandwiches the engaging portion with an end portion in the width direction of the upper outer plate.

  In other cases, it is preferable that the engaging portion has a cut portion that sandwiches an end portion in the width direction of the upper plate.

  In another case, a concave portion that engages with a side edge of the opening is formed in the widthwise end of the upper plate, and the engagement portion is formed on the side edge of the opening. It is preferable that the engagement convex part is engaged with the width direction edge part of the said upper side board above the said recessed part.

  In this case, the lower plate and the upper plate are each formed by a part of the peripheral wall cut along a cutting line extending upward from the lower end of the peripheral wall, and the opening is formed by the cutting Preferably, the lower plate and the upper plate are cut along a line, and the upper plate is formed so as to gradually spread in the width direction from below to above.

  According to the present invention, the upper plate displaying information can be held in an inclined posture.

It is a perspective view which shows the packaging box which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the packaging box which concerns on 1st Embodiment of this invention. It is a top view which shows the 2nd opening structure of the blank of the packaging box which concerns on 1st Embodiment of this invention. It is a packaging box concerning a 1st embodiment of the present invention, and is a perspective view showing the state where the 1st opening part opened. It is a packaging box concerning a 1st embodiment of the present invention, and is a perspective view showing the state where the 2nd upper part opening part opened. It is a packaging box concerning a 1st embodiment of the present invention, and is a perspective view showing the state where the 2nd upper part opening part and the 2nd lower part opening part opened. It is a packaging box which concerns on 1st Embodiment of this invention, Comprising: It is a perspective view which shows the state which became the attitude | position which the upper outer side board inclined. It is VIII-VIII sectional drawing of FIG. It is a packaging box which concerns on 1st Embodiment of this invention, Comprising: It is a perspective view which shows the state which inserted | pinched the engaging part with the cut | notch part. It is a top view which shows the 2nd opening structure of the blank of the packaging box which concerns on the modification of 1st Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on 2nd Embodiment of this invention. It is a top view which shows the blank of the packaging box which concerns on 2nd Embodiment of this invention. It is a top view which shows the opening structure of the blank of the packaging box which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the state which removed the upper part of the packaging box which concerns on 2nd Embodiment of this invention. It is a packaging box which concerns on 2nd Embodiment of this invention, Comprising: It is a perspective view which shows the state which the opening part opened. It is a packaging box which concerns on 2nd Embodiment of this invention, Comprising: It is a perspective view which shows the state which became the attitude | position which the upper side board inclined. It is a packaging box which concerns on 2nd Embodiment of this invention, Comprising: It is a perspective view which shows the state which the recessed part and the engaging part engaged. It is XVIII-XVIII sectional drawing of FIG. It is a top view which shows the opening structure of the blank of the packaging box which concerns on the modification of 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In each figure, “Fr” indicates “front”, “Rr” indicates “rear”, “L” indicates “left”, “R” indicates “right”, and “U” indicates “Up” indicates “D”, and “D” indicates “Down”. The terms indicating these directions are used for convenience of explanation, and do not limit the technical scope of the present invention.

[First Embodiment]
With reference to FIG. 1 thru | or FIG. 3, the structure of the packaging box 1 which concerns on 1st Embodiment is demonstrated. FIG. 1 is a perspective view showing the packaging box 1. FIG. 2 is a plan view showing the blank 5 of the packaging box 1. FIG. 3 is a plan view showing the second opening structure 30 of the blank 5.

  As shown in FIG. 1, the packaging box 1 is an A-type box that is sealed by closing the upper surface and the lower surface of a rectangular tubular peripheral wall 1A. The packaging box 1 contains, for example, beverage cans, bottles, plastic bottles (contents) (not shown).

  The packaging box 1 is formed by assembling the blank 5 shown in FIG. The blank 5 is formed by punching out a single sheet of cardboard sheet with a die cutter or the like. For example, the corrugated cardboard sheet is formed by laminating a front liner 9B and a back liner 9C (see FIG. 4) on a corrugated center 9A. FIG. 2 shows the front liner 9B side (the outer surface side of the packaging box 1). In this specification, a direction parallel to the corrugated sheet 9 </ b> A is referred to as a “step direction”, and a direction orthogonal to the step direction is referred to as a “flow direction”. In the drawing, “X” indicates “stage direction”, and “Y” indicates “flow direction”. In the present specification, the terms “vertical direction”, “front / rear direction”, “left / right direction”, and similar terms refer to the vertical direction, front / rear direction, and left / right direction (vertical direction) when the packaging box 1 is assembled (assembled state). (Width direction intersecting (orthogonal) in the direction) and similar concepts.

[blank]
As shown in FIG. 2, the blank 5 includes a pair of end walls 10A and 10B, a pair of side walls 11A and 11B, a passage piece 12, a pair of first inner flaps 13A and 13B, and a pair of first outer walls. The flaps 14A, 14B, a pair of second inner flaps 15A, 15B, and a pair of second outer flaps 16A, 16B are included.

  The end wall 10A, the side wall 11A, the end wall 10B, the side wall 11B, and the passage piece 12 are aligned in this order from one side to the other in the flow direction. The pair of end walls 10A, 10B and the pair of side walls 11A, 11B are provided in a state of being alternately connected in the flow direction via the first ruled line L1. Each end wall 10A, 10B and each side wall 11A, 11B are each formed in a substantially rectangular shape. The dimension in the step direction of each end wall 10A, 10B is substantially the same as the dimension in the step direction of each side wall 11A, 11B. The dimension of each end wall 10A, 10B in the flow direction is set shorter (substantially half) than the dimension of each side wall 11A, 11B in the flow direction. The passage piece 12 is provided in a state of being connected to the other end portion in the flow direction of the side wall 11B via the first ruled line L1.

  The pair of first inner flaps 13A, 13B is provided in a state of being connected to one end portion (upper end portion) in the step direction of the pair of end walls 10A, 10B via the second ruled line L2. The pair of first inner flaps 13A and 13B are each formed in a substantially rectangular shape. Specifically, a deficient portion 13C that is cut out in a substantially square shape is formed at the inner corners in the flow direction of the pair of first inner flaps 13A and 13B. The dimension in the step direction of each first inner flap 13A, 13B is set to approximately half the dimension in the flow direction of each end wall 10A, 10B. The dimension of each first inner flap 13A, 13B in the flow direction is substantially the same as the dimension of each end wall 10A, 10B in the flow direction.

  The pair of first outer flaps 14A and 14B is provided in a state of being connected to one end portion (upper end portion) in the step direction of the pair of side walls 11A and 11B via the second ruled line L2. Each of the pair of first outer flaps 14A and 14B is formed in a substantially rectangular shape. The dimension in the step direction of each first outer flap 14A, 14B is substantially the same as the dimension in the step direction of each first inner flap 13A, 13B. The dimension in the flow direction of each first outer flap 14A, 14B is substantially the same as the dimension in the flow direction of each side wall 11A, 11B.

  The pair of second inner flaps 15A, 15B is provided in a state of being connected to the other end in the step direction (lower end) of the pair of end walls 10A, 10B via the third ruled line L3. Each of the second inner flaps 15A and 15B is formed in a substantially rectangular shape having substantially the same dimensions as each of the first inner flaps 13A and 13B excluding the defective portion 13C. The pair of second outer flaps 16A, 16B is provided in a state of being connected to the other end in the step direction (lower end) of the pair of side walls 11A, 11B via the third ruled line L3. The second outer flaps 16A and 16B are formed in a substantially rectangular shape having substantially the same dimensions as the first outer flaps 14A and 14B.

  The first ruled line L1, the second ruled line L2, and the third ruled line L3 are general-purpose ruled lines formed by squashing the corrugated cardboard sheet in the thickness direction from the back liner 9C side.

  A first opening structure 20 for opening the assembled packaging box 1 is formed on the side wall 11A and the first outer flap 14A. The side wall 11B and the first outer flap 14B are formed with a second opening structure 30 for opening an assembled packaging box 1 and displaying an advertisement (not shown) as an example of information. .

<First opening structure>
The first opening structure 20 includes a first lower horizontal cutting line 21, a pair of first vertical cutting lines 22, and a first upper horizontal cutting line 23. These cutting lines 21 to 23 form a substantially rectangular (substantially trapezoidal) outline that is slightly wider from the other (lower) in the step direction to one (upper).

  The first lower horizontal cutting line 21 is a sewing line formed by arranging a plurality of linear cuts through which a blade penetrates in the thickness direction of the corrugated cardboard sheet at substantially equal intervals. The first lower horizontal cutting line 21 is formed substantially parallel to the third ruled line L3 on the other side (lower part) of the side wall 11A in the step direction. A first pushing portion 24 is formed on the side wall 11 </ b> A along the first lower horizontal cutting line 21. The first pushing portion 24 includes a first pushing ruled line 24B that connects a pair of first cut lines 24A extending from the first lower horizontal cutting line 21 in one step (upward) and the upper ends of the pair of first cut lines 24A ( General-purpose ruled lines) and a substantially rectangular shape.

  Each of the pair of first vertical cutting lines 22 is a zipper formed by arranging a plurality of refracted cuts at substantially equal intervals. The cut of each first vertical cutting line 22 includes a cut main body extending in the cutting direction and a guide line extending obliquely with respect to the cut main body. The pair of first vertical cutting lines 22 extends from both ends in the flow direction of the first lower horizontal cutting line 21 toward one side (upward) in the step direction, and then curves and extends toward both outer sides in the flow direction. Further, the pair of first vertical cutting lines 22 extends toward both outer sides in the flow direction, then bends and extends toward one side (upward) in the step direction. The pair of first longitudinal cutting lines 22 extends across the second ruled line L2 to a position exceeding the center of the projecting dimension of the first outer flap 14A.

  The first upper horizontal cutting line 23 is a sewing line formed substantially in parallel with the second ruled line L2 so as to connect one end (upper end) in the step direction of the pair of first vertical cutting lines 22.

<Second opening structure>
As shown in FIG. 3, the second opening structure 30 includes a central cutting line 31, a pair of second vertical cutting lines 32, a second horizontal cutting line 33, a pair of upper cutting lines 34, and a pair of middle cutting lines. A line 35 and a pair of lower cutting lines 36 are included. These cutting lines 31 to 36 form a substantially rectangular outline with a narrow width from the intermediate portion in the step direction toward both end portions (upper and lower end portions).

  The central cutting line 31 is a sewing line formed so as to be along the second ruled line L2 at the approximate center of the side wall 11B in the step direction. Specifically, the central cutting line 31 is curved so as to rise slightly to the one side (upward) in the step direction at substantially the center in the flow direction. Moreover, the 2nd pushing part 37 is formed in the side wall 11B along the flow direction intermediate part of the center cutting line 31. As shown in FIG. The 2nd pushing part 37 is the 2nd pushing ruled line 37B (general ruled line) which connects a pair of 2nd cut line 37A extended in the step direction one side (upward) from the center cutting line 31, and the upper end of a pair of 2nd cut line 37A. And is formed in a substantially rectangular shape.

  Each of the pair of second vertical cutting lines 32 is a zipper. The pair of second vertical cutting lines 32 extend from both ends of the central cutting line 31 in the flow direction toward one side (upward) in the step direction, and then bend and extend obliquely toward both inner sides in the flow direction. Further, the pair of second vertical cutting lines 32 extends toward both inner sides in the flow direction, and then bends and extends toward one side (upward) in the step direction. The pair of second longitudinal cutting lines 32 extends across the second ruled line L2 to a position exceeding the center of the projecting dimension of the first outer flap 14B.

  The second horizontal cutting line 33 is a sewing line formed substantially in parallel with the second ruled line L2 so as to connect one end (upper end) in the step direction of the pair of second vertical cutting lines 32.

  A first auxiliary ruled line L4 and a pair of second auxiliary ruled lines L5 are formed in an area surrounded by the central cut line 31, the pair of second vertical cut lines 32, and the second ruled line L2. . The first auxiliary ruled line L4 is formed in a substantially V shape at the center in the flow direction. The pair of second auxiliary ruled lines L5 are inclined so as to be separated from each other in the step direction from one side (upper side) to the other (lower side) on the outer side in the flow direction of the first auxiliary ruled line L4. The first auxiliary ruled lines L4 are general-purpose ruled lines, and each second auxiliary ruled line L5 is a reverse ruled line formed by squashing a corrugated cardboard sheet in the thickness direction from the front liner 9B side.

  Each upper cutting line 34 and each middle cutting line 35 are sewing lines. The pair of upper cutting lines 34 extend from both ends in the flow direction of the central cutting line 31 toward the other in the step direction (downward), then bend and extend obliquely toward both inner sides in the flow direction. That is, the lower ends of the pair of upper cutting lines 34 are inclined obliquely downward toward the center in the flow direction. The pair of middle cutting lines 35 extends from the other end (lower end) in the step direction of the pair of upper cutting lines 34 to the other (downward). The pair of middle cutting lines 35 are inclined obliquely downward toward the inner side (center side) in the flow direction.

  Each of the pair of lower cutting lines 36 is a zipper. The pair of lower cutting lines 36 extends from the other end (lower end) in the step direction of the pair of middle cutting lines 35 toward the other side (downward) in the step direction while curving toward the inner side (center side) in the flow direction. The other end (lower end) in the step direction of the pair of lower cutting lines 36 is formed at a position away from the second outer flap 16B (third ruled line L3) in one step (upward) in the step direction.

  In the third ruled line L3 between the side wall 11B and the second outer flap 16B, a plurality of linear cuts are formed at substantially equal intervals at positions corresponding to between the pair of lower cutting lines 36. The central portion in the flow direction of the third ruled line L3 is a lead ruled with a plurality of cuts formed on the general-purpose ruled line at approximately equal intervals. In the present specification, the portion of the third ruled line L3 that is the lead rule is also referred to as a “first bent line L10”.

  Between the pair of lower cutting lines 36, a second fold line L11 is formed that is substantially parallel to the third ruled line L3 (first fold line L10). Specifically, both ends of the second folding line L11 in the flow direction are connected to the vicinity of the pair of lower cutting lines 36 that start to bend outward in the flow direction while extending from the other (lower) to the other (lower) in the step direction. The second fold line L11 is a lead ruler in which a plurality of cuts are formed at substantially equal intervals on the general ruled line.

  A third fold line L12 that is substantially parallel to the first fold line L10 and the second fold line L11 is formed between one end (upper end) in the step direction of the pair of middle-stage cutting lines 35. The third folding line L12 is formed at a position shifted to one side (upward) in the step direction from the connection portion between the upper cutting line 34 and the middle cutting line 35. The third fold line L12 is a lead ruler in which a plurality of cuts are formed at substantially equal intervals on the general ruled line. A pair of cut portions 38 are formed at both ends of the third folding line L12 in the flow direction. The pair of cut portions 38 are cuts inclined obliquely downward from both ends in the flow direction of the third folding line L12 toward the connection portion between the upper cutting line 34 and the middle cutting line 35.

  When the side wall 11B is cut along the central cutting line 31, the pair of upper cutting lines 34, the pair of middle cutting lines 35, and the pair of lower cutting lines 36, the lower plate 40 and the upper plate 41 are formed. . The upper plate 41 includes an upper outer plate 41A and an upper inner plate 41B.

  The lower plate 40 is formed in a region surrounded by the pair of lower cutting lines 36, the first folding line L10, and the second folding line L11. Since the pair of lower cutting lines 36 (lower part) are inclined so as to slightly spread in the flow direction (left-right direction) from the other (lower) in the step direction to one (upward), the lower plate 40 is upward from the lower side. It is formed in a substantially trapezoidal shape that gradually becomes wider in the left-right direction.

  The upper outer plate 41A is formed in a region surrounded by a pair of middle cutting lines 35, a pair of lower cutting lines 36, a second folding line L11, and a third folding line L12. Since one of the lower cutting lines 36 in the step direction (upward) extends outward in the flow direction (away from each other), the upper outer plate 41A is formed longer in the flow direction (left-right direction) than the lower plate 40. . Since the pair of middle cutting lines 35 are inclined so as to slightly spread in the flow direction (left-right direction) from the other (lower) in the step direction to one (upper), the upper outer plate 41A is directed from the lower to the upper. It is formed in a substantially trapezoidal shape that gradually becomes wider in the left-right direction. On the front liner 9B of the upper outer plate 41A, for example, advertisements (information) such as letters and pictures are printed (displayed) (not shown).

  The upper inner plate 41B is formed in a region surrounded by the central cutting line 31, the pair of upper cutting lines 34, and the third folding line L12. Since the lower ends of the pair of upper cutting lines 34 are inclined toward the center in the flow direction, the upper inner plate 41B is formed longer in the flow direction (left-right direction) than the upper outer plate 41A. The upper inner plate 41B forms a pair of cut portions 38 between the left and right ends of the upper outer plate 41A.

[Assembly of packaging box]
In the blank 5 described above, the end wall 10A and the side wall 11B are bent along the first ruled line L1, and the passage piece 12 is bonded to the inner surface of the end wall 10A. Thereby, the packaging box 1 folded flat is formed. The packaging box 1 is delivered to a manufacturer of contents in a folded state.

  Next, the assembly process of the folded packaging box 1 is demonstrated. The packaging box 1 may be assembled manually by an operator, or may be assembled automatically or semi-automatically by a box making machine. Here, the case where an operator assembles the packaging box 1 will be described.

  The operator bends the pair of end walls 10A and 10B and the pair of side walls 11A and 11B along the first ruled line L1 to form the peripheral wall 1A (see FIG. 1). In this state, the peripheral wall 1A is formed in a rectangular tube shape with both upper and lower surfaces opened.

  Subsequently, the operator bends the pair of second outer flaps 16A and 16B along the third ruled line L3 after bending the pair of second inner flaps 15A and 15B along the third ruled line L3. Note that the ends of the pair of second inner flaps 15A and 15B are separated from each other, and the ends of the pair of second outer flaps 16A and 16B are abutted at approximately the center. Subsequently, the operator affixes the adhesive tape T along the butted portions of the pair of second outer flaps 16A and 16B. In this state, the lower surface opening of the peripheral wall 1A is closed, and the bottom surface of the packaging box 1 is formed.

  Next, after arranging a plurality of contents on the bottom surface of the packaging box 1, the operator places the pair of first inner flaps 13A, 13B and the pair of first outer flaps 14A, 14B along the second ruled line L2. Bend it. Note that the ends of the pair of first inner flaps 13A and 13B are separated from each other, and the ends of the pair of first outer flaps 14A and 14B are abutted at approximately the center. Subsequently, the operator attaches the adhesive tape T along the abutting portions of the pair of first outer flaps 14A and 14B. In this state, the upper surface opening of the peripheral wall 1A is closed, and the top surface of the packaging box 1 is formed.

  Thus, the assembly operation of the packaging box 1 is completed (see FIG. 1). That is, the packaging box 1 is sealed. In the above description, the adhesive tape T is used for assembling the packaging box 1, but instead of this, the outer flaps 14A, 14B, 16A, 16B are replaced with the inner flaps 13A, 13B, You may fix to 15A, 15B.

[Opening and display of packaging boxes]
Next, opening and display of the packaging box 1 will be described with reference to FIGS. FIG. 4 is a perspective view showing a state in which the first opening 20A is opened. FIG. 5 is a perspective view showing a state in which the second upper opening 30A is opened. FIG. 6 is a perspective view showing a state where the second upper opening 30A and the second lower opening 30B are opened. FIG. 7 is a perspective view showing a state in which the upper outer plate 41A is inclined. 8 is a sectional view taken along line VIII-VIII in FIG. FIG. 9 is a perspective view showing a state in which the engaging portion 39 is sandwiched by the cut portion 38.

  The packaging box 1 that wraps the contents is delivered to a store, for example, and opened and displayed by a store clerk (user). The user opens the packaging box 1 using at least one of the first opening structure 20 and the second opening structure 30. The contents are displayed (displayed) at the store in a state of being accommodated in the packaging box 1.

<Opening using the first opening structure>
As shown in FIG. 4, when opening the packaging box 1 using the 1st opening structure 20, the packaging box 1 is arrange | positioned so that the side wall 11A may face the front. A user pushes in the 1st pushing part 24 (refer FIG. 2) formed in 11 A of side walls. The 1st pushing part 24 is cut | disconnected along 24 A of 1st cut lines, and bends inward by the 1st pushing ruled line 24B. The user puts a finger into the hole formed by pushing the first pushing portion 24, grabs the first pushing portion 24, and pulls it obliquely upward. Then, the side wall 11 </ b> A is cut along the first lower horizontal cutting line 21 and the pair of first vertical cutting lines 22. The first outer flap 14A connected to the side wall 11A is also cut along a pair of first vertical cutting lines 22 and first upper horizontal cutting lines 23. As a result, the region surrounded by the first lower horizontal cutting line 21, the pair of first vertical cutting lines 22 and the first upper horizontal cutting line 23 is removed from the packaging box 1, and extends from the side wall 11A to the first outer flap 14A. A large first opening 20A is formed.

  Thus, the packaging box 1 is opened, and the contents in the packaging box 1 can be taken out through the first opening 20A. Since the first opening 20A is formed up to a part of the first outer flap 14A, the store visitor can visually check the contents in the packaging box 1 from the upper front side and easily take out the contents. be able to. In addition, since the missing portion 13C formed in the pair of first inner flaps 13A and 13B is formed so as to avoid the first opening 20A, the pair of first inner flaps 13A and 13B are formed in the first opening 20A. Will not be exposed. Thereby, while being able to ensure the opening area of 20 A of 1st opening to the maximum, the beauty | look of the packaging box 1 made into the opened state can be improved.

<Opening using the second opening structure>
As shown in FIG. 5, when opening the packaging box 1 using the 2nd opening structure 30, the packaging box 1 is arrange | positioned so that the side wall 11B may face front. A user pushes in the 2nd pushing part 37 (refer FIG. 3) formed in the side wall 11B. The 2nd pushing part 37 is cut | disconnected along 37 A of 2nd cut lines, and bends inward by the 2nd pushing ruled line 37B. The user inserts a finger into the hole formed by pushing the second pushing portion 37, grabs the second pushing portion 37, and pulls it obliquely upward. Then, the substantially upper half of the side wall 11 </ b> B is cut along the central cutting line 31 while being folded at the first auxiliary ruled line L <b> 4 and at the second auxiliary ruled line L <b> 5 (see FIG. 3). Thereafter, the substantially upper half of the side wall 11B is cut along a pair of second vertical cutting lines 32, and the first outer flap 14B connected to the side wall 11B is also turned into a pair of second vertical cutting lines 32 and second horizontal cutting lines 33. Cut along. Thereby, the area surrounded by the central cutting line 31, the pair of second vertical cutting lines 32, and the second horizontal cutting lines 33 is removed from the packaging box 1, and from the substantially vertical center of the side wall 11B to the first outer flap 14B. A second upper opening 30A is formed over the entire surface.

  In addition, since the upper part of a pair of 2nd vertical cutting line 32 is formed so that a width | variety may become narrow in the left-right direction, 30 A of 2nd upper side opening parts are formed so that a pair of 1st inner flaps 13A and 13B may be avoided. . Accordingly, the pair of first inner flaps 13A and 13B is prevented from being exposed to the second upper opening 30A, and the aesthetic appearance of the packaging box 1 in the opened state can be improved.

  Next, as shown in FIG. 6, the user grasps the substantially lower half (upper inner plate 41B) of the side wall 11B and pulls it obliquely downward. Then, the upper inner plate 41B, the upper outer plate 41A, and the lower plate 40 are cut along a pair of upper cutting lines 34, a pair of middle cutting lines 35, and a pair of lower cutting lines 36. Thereby, the upper inner side plate 41B, the upper outer side plate 41A and the lower side plate 40 are in a state of extending forward from the second outer flap 16B via the first folding line L10, and from the substantially vertical center to the lower end of the side wall 11B. A second lower opening 30B is formed in the space (side surface of the peripheral wall 1A).

  In this state, a pair of engaging portions 39 are formed at the side edge of the second lower opening 30B. The pair of engaging portions 39 are formed at positions corresponding to the lower ends of the pair of upper cutting lines 34 and the pair of middle cutting lines 35. Since the lower ends of the pair of upper cutting lines 34 are inclined from the upper side to the lower side in the horizontal direction, the pair of engaging portions 39 are located on the inner side from the side edges on the left and right sides of the second lower opening 30B. It is formed in a state protruding toward the.

  Next, as shown in FIG. 7, the user bends the lower plate 40 inward along the first folding line L10, and bends the upper outer plate 41A inward along the second folding line L11. Further, the user folds the upper inner plate 41B inward along the third fold line L12, and a pair of engaging portions 39 by the pair of cut portions 38 formed between the upper outer plate 41A and the upper inner plate 41B. Is inserted.

  As shown in FIG. 8, in this state, the lower plate 40 is provided in a state of extending obliquely upward and outward from the lower edge (first folding line L10) of the second lower opening 30B. The upper outer plate 41 </ b> A is provided in a state extending obliquely upward from the upper end portion (tip portion) of the lower plate 40. That is, the lower plate 40 and the upper outer plate 41A are formed in a substantially triangular shape protruding forward. The angle θ1 formed between the lower plate 40 and the upper outer plate 41A is set to about 90 degrees. The angle θ2 formed by the lower plate 40 and the horizontal plane (the installation surface of the packaging box 1) is set to about 45 degrees, and the angle θ3 formed by the upper outer plate 41A and the horizontal plane is also set to about 45 degrees.

  Further, as shown in FIG. 7, the lower plate 40 and the upper outer plate 41A are inclined so that the upper portion (wide portion) of the upper outer plate 41A has a pair of engaging portions 39 (second lower opening). (The narrow portion of the portion 30B). As shown in FIGS. 8 and 9, the upper inner plate 41B is provided in a state extending obliquely downward from the upper end portion (tip end portion) of the upper outer plate 41A toward the inside of the peripheral wall 1A. The pair of engaging portions 39 are sandwiched between the pair of cut portions 38 (engaged with the left and right ends of the upper plate 41) and hold the upper and outer plates 41A (upper plate 41) in an inclined posture. .

  Thus, the packaging box 1 is opened, and the contents in the packaging box 1 can be taken out through the second upper opening 30A (see FIG. 7). Further, since the upper outer plate 41A is inclined forward, the store visitor can visually check the advertisement displayed on the upper surface of the upper outer plate 41A from the front upper side. As described above, the advertisement on the upper outer plate 41A is used for sales promotion at a store as a so-called POP advertisement (Point of purchase advertising). Further, since the upper outer plate 41A (upper plate 41) is formed wider in the left-right direction than the lower plate 40, a large display space for the advertisement can be secured and the advertisement can be made conspicuous. In addition, since the second upper opening 30A is formed up to a part of the first outer flap 14B, the store visitor can visually check the contents in the packaging box 1 from the front upper side and the contents. It can be easily taken out.

  In addition, although the above description demonstrated the case where the packaging box 1 was opened using the 1st opening structure 20 or the 2nd opening structure 30, it is not restricted to this, The 1st opening structure 20 and the 2nd opening structure 30 You may open the packaging box 1 using both.

  In the packaging box 1 according to the first embodiment described above, the lower plate 40 extends obliquely upward on the front side, and the upper outer plate 41A extends obliquely upward on the rear side (see FIG. 8). That is, the lower plate 40 and the upper outer plate 41 </ b> A are configured to have opposite inclinations. According to this configuration, the angle θ1 formed by the lower plate 40 and the upper outer plate 41A can be increased as compared with the case where the lower plate 40 and the upper outer plate 41A are opposed (overlapped). Thus, the repulsive force acting on the bent portion (second folding line L11) between the lower plate 40 and the upper outer plate 41A can be weakened, and the left and right end portions (the pair of cut portions 38) of the upper plate 41 are paired with each other. The state engaged with the joint portion 39 can be maintained. As a result, the upper outer plate 41A displaying the advertisement can be held in an inclined posture.

  Further, according to the packaging box 1 according to the first embodiment, the bent portion between the lower plate 40 and the upper outer plate 41A is set by setting the angle θ1 formed by the lower plate 40 and the upper outer plate 41A to about 90 degrees. While weakening the repulsive force acting on (second folding line L11), the upper outer plate 41A can be in the forward tilt posture. Thereby, the visitor can visually check the advertisement displayed on the upper outer side plate 41 </ b> A from the diagonally upper front side.

  Moreover, according to the packaging box 1 which concerns on 1st Embodiment, it is the state which made the upper inner side board 41B approached into the surrounding wall 1A, and pinches | interposed a pair of engaging part 39 with a pair of notch part 38, an upper outer side board 41A (upper plate 41) can be securely held. Thereby, it can suppress effectively that the upper side board 41 detaches | leaves from each engaging part 39. FIG.

  Moreover, in the packaging box 1 which concerns on this embodiment, the lower side board 40 and the upper side board 41 are 1A (peripheral wall cut | disconnected along each cutting line 34-36 extended upwards from the lower end part of 1 A of peripheral walls, respectively. The structure is formed by a part of the side wall 11B). The second lower opening 30 </ b> B is configured to be formed at a position where the lower plate 40 and the upper plate 41 are cut along the cutting lines 34 to 36. Further, the upper plate 41 (the upper outer plate 41A and the upper inner plate 41B) was formed so as to gradually spread in the left-right direction from the lower side to the upper side. According to this configuration, the upper portion of the upper outer plate 41A is formed wider than the interval between the lower portions of the pair of engaging portions 39 (see FIG. 3). Further, the upper plate 41 (upper outer plate 41A and upper inner plate 41B) can be lowered to the lower portions of the pair of engaging portions 39 by bending the lower plate 40 and the upper outer plate 41A into a substantially triangular shape ( (See FIG. 7). For this reason, the overlapping width W1 between the pair of cut portions 38 and the pair of engaging portions 39 of the upper plate 41 can be sufficiently ensured (see FIG. 3). Thereby, engagement with each notch part 38 and each engaging part 39 can be strengthened, and it can suppress more effectively that the upper side board 41 detach | leaves from each engaging part 39. FIG.

  In addition, in the packaging box 1 which concerns on 1st Embodiment, although the 1st opening structure 20 was formed in the side wall 11A, and the 2nd opening structure 30 was formed in the side wall 11B, this invention is not limited to this. The first opening structure 20 may be omitted. For example, the 1st opening structure 20 may be abbreviate | omitted and the two 2nd opening structures 30 may be formed in the side walls 11A and 11B of both sides. The second opening structure 30 may be formed on at least one of the pair of end walls 10A and 10B instead of / in addition to at least one of the pair of side walls 11A and 11B.

  Moreover, in the packaging box 1 which concerns on 1st Embodiment, although the upper side board 41 included the upper outer side board 41A and the upper inner side board 41B, not only this but the upper inner side board 41B may be abbreviate | omitted. In this case, it is preferable that the cut portions 38 are formed at the left and right ends of the upper outer plate 41A (upper plate 41).

  Moreover, in the packaging box 1 which concerns on 1st Embodiment, although the cut part 38 was formed in the upper side board 41 (between the upper outer side board 41A and the upper inner side board 41B), this invention is not limited to this. As shown in FIG. 10, as the packaging box 1 (blank 5) according to the modified example, the cut portion 38 of the upper plate 41 is omitted, and the pair of engaging portions 39 are respectively the upper plate 41 (upper outer plate 41A). There may be provided cut portions 42 for sandwiching both left and right end portions. Each cut portion 42 is a cut extending outward in the left-right direction at the lower portion of the engagement portion 39.

[Second Embodiment]
Next, with reference to FIG. 11 thru | or FIG. 13, the structure of the packaging box 2 which concerns on 2nd Embodiment is demonstrated. FIG. 11 is a perspective view showing the packaging box 2. FIG. 12 is a plan view showing the blank 6 of the packaging box 2. FIG. 13 is a plan view showing the opening structure 60 of the blank 6. In addition, about the structure similar to the packaging box 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and description of the structure similar to the packaging box 1 or a corresponding structure is abbreviate | omitted.

  As shown in FIG. 11, the packaging box 2 is an A-type cardboard box that is sealed with an adhesive tape T or the like by closing both the upper and lower surfaces of a square cylindrical peripheral wall 2A.

[blank]
As shown in FIG. 12, the blank 6 includes a pair of end walls 50A and 50B, a pair of side walls 51A and 51B, a passage piece 52, a pair of first inner flaps 53A and 53B, and a pair of first outer walls. The flaps 54A and 54B, a pair of second inner flaps 55A and 55B, and a pair of second outer flaps 56A and 56B are included.

  The passage piece 52, the side wall 51 </ b> A, the end wall 50 </ b> A, the side wall 51 </ b> B, and the end wall 50 </ b> B are aligned in this order from one side to the other in the flow direction. Each end wall 50A, 50B and each side wall 51A, 51B are each formed in a substantially rectangular shape. The dimension in the step direction of each side wall 51A, 51B is substantially the same as the dimension in the step direction of each end wall 50A, 50B, and the dimension in the flow direction of each side wall 51A, 51B is the same as the dimension in the flow direction of each end wall 50A, 50B. It is set longer than the dimension. A first ruled line L1 is formed at the boundary between the end walls 50A, 50B, the side walls 51A, 51B, and the passage piece 52. The passage piece 52 is bonded to the inner surface of the end wall 50B, and the pair of end walls 50A, 50B and the pair of side walls 51A, 51B are bent along the first ruled line L1 to form a substantially square cylindrical peripheral wall 2A. .

  The pair of first inner flaps 53A, 53B is provided in a state of being connected to one end (upper end) in the step direction of the pair of end walls 50A, 50B, and the pair of first outer flaps 54A, 54B is a pair of side walls 51A, 51B. It is provided in a state of being connected to one end in the step direction. The first inner flaps 53A and 53B and the first outer flaps 54A and 54B are bent along the second ruled line L2 to close the upper surface opening of the peripheral wall 2A. The pair of second inner flaps 55A, 55B are provided in a state of being connected to the other end (lower end) in the step direction of the pair of end walls 50A, 50B, and the pair of second outer flaps 56A, 56B are a pair of side walls. 51A and 51B are provided in a state of being connected to the other end in the step direction. Each of the second inner flaps 55A and 55B and each of the second outer flaps 56A and 56B is bent along the third ruled line L3 to close the lower surface opening of the peripheral wall 2A.

  Each end wall 50A, 50B, each side wall 51A, 51B and passage piece 52 is formed with an opening structure 60 for opening the assembled packaging box 2 and displaying an advertisement (information).

<Opening structure>
As shown in FIGS. 12 and 13, the unsealing structure 60 includes a cut tape 61, a transverse cutting line 62, a pair of inclined cutting lines 63, and a pair of vertical cutting lines 64. The cut tape 61 is a tape for tearing the packaging box 2 along the flow direction. Each of the cutting lines 62 to 64 forms a substantially rectangular outline.

  As shown in FIG. 12, the cut tape 61 is formed by processing a synthetic resin or cotton into a thin strip shape, and is attached to the passage piece 52 and the back liner 9C of each of the walls 50A, 50B, 51A, 51B. ing. The cut tape 61 is provided in a state extending substantially in parallel with the second ruled line L2 (third ruled line L3) and over the entire flow direction of the passage piece 52 and the walls 50A, 50B, 51A, 51B. . The cut tape 61 is affixed to the other side (lower side) slightly from the center in the step direction of the passage piece 52 and the walls 50A, 50B, 51A, 51B.

  Knob portions 61A and 61B are formed at approximately the center in the flow direction of the pair of end walls 50A and 50B, respectively. Each knob 61A, 61B is formed in a region surrounded by a cut extending in the step direction (vertical direction) so as to cut the cut tape 61 and a pair of upper and lower cuts extending in parallel with the cut tape 61. Yes. A pair of upper and lower cuts extending in parallel with the cut tape 61 are formed at the other end in the flow direction of the end wall 50 </ b> B and the passage piece 52.

  As shown in FIG. 13, the horizontal cutting line 62, the pair of inclined cutting lines 63, and the pair of vertical cutting lines 64 are formed at positions close to one (left side) in the flow direction of the side wall 51B. The transverse cutting line 62 is a sewing line formed substantially parallel to the cut tape 61 on one side (upward) in the step direction from the cut tape 61.

  The pair of inclined cutting lines 63 are cuts extending from both ends in the flow direction of the horizontal cutting line 62 toward the other in the step direction. The pair of inclined cutting lines 63 cross the cut tape 61 and extend to the approximate center of the distance between the cut tape 61 and the third ruled line L3. The pair of inclined cutting lines 63 are slightly inclined inward (so as to approach each other) from one (upper) to the other (lower) in the step direction. The pair of inclined cutting lines 63 are curved so as to protrude inward immediately after crossing the cut tape 61. The protruding portion of the inclined cutting line 63 is formed in a substantially semicircular shape.

  Each of the pair of vertical cutting lines 64 is a zipper formed by arranging a plurality of substantially Y-shaped cuts at substantially equal intervals. The pair of vertical cutting lines 64 extends substantially perpendicularly from the other end (lower end) in the step direction of the pair of inclined cutting lines 63 to the other (downward). The pair of vertical cutting lines 64 is formed between the lower end portion of the pair of inclined cutting lines 63 and the third ruled line L3. In the present specification, the third ruled line L3 formed between the pair of vertical cutting lines 64 is also referred to as “first folding line L20”.

  Between the pair of vertical cutting lines 64, a second fold line L21 that is substantially parallel to the third ruled line L3 (first fold line L20) is formed. The second folding line L <b> 21 is a general ruled line in which both ends in the flow direction are connected to the center in the step direction of the pair of vertical cutting lines 64.

  When the side wall 51B is cut along the horizontal cutting line 62, the pair of inclined cutting lines 63, and the pair of vertical cutting lines 64, the lower plate 70 and the upper plate 71 are formed.

  The lower plate 70 is formed in a region surrounded by the pair of vertical cutting lines 64, the first folding line L20, and the second folding line L21. The lower plate 70 is formed in a substantially rectangular shape. The upper plate 71 is formed in a region surrounded by the horizontal cutting line 62, the pair of inclined cutting lines 63, the pair of vertical cutting lines 64, and the second folding line L21. Since the pair of inclined cutting lines 63 are inclined so as to slightly spread in the flow direction from the other (lower) in the step direction to one (upper), the upper plate 71 gradually gradually moves in the left-right direction from the lower side to the upper side. It is formed in a broad trapezoidal shape. The dimension of the upper plate 71 in the step direction is set to be longer (substantially three times) than the dimension of the lower plate 70 in the step direction. For example, advertisement (information) is printed (displayed) on the front liner 9 </ b> B of the upper plate 71.

[Opening and display of packaging boxes]
Next, opening and display of the packaging box 2 will be described with reference to FIGS. FIG. 14 is a perspective view showing a state in which the upper part of the packaging box 2 is removed. FIG. 15 is a perspective view showing a state in which the opening 60A is opened. FIG. 16 is a perspective view showing a state in which the upper plate 71 is inclined. FIG. 17 is a perspective view showing a state in which the concave portion 72 and the engaging portion 65 are engaged. 18 is a sectional view taken along line XVIII-XVIII in FIG. In addition, the packaging box 2 shall be assembled in the procedure substantially the same as the assembly process of the packaging box 1 which concerns on 1st Embodiment.

  As shown in FIG. 14, when opening the packaging box 2, the user holds the knobs 61 </ b> A and 61 </ b> B (see FIG. 12) and pulls them substantially horizontally. The peripheral wall 2A (each end wall 50A, 50B and each side wall 51A, 51B) is cut along the cut tape 61. Since the cut tape 61 is cut by the inclined cutting lines 63, the upper plate 71 remains without being cut. Thereafter, when the user pulls the upper portion of the packaging box 2 upward, the side wall 51 </ b> B is cut along the upper side of the transverse cutting line 62 (see FIG. 13) and the pair of inclined cutting lines 63. Then, the packaging box 2 is divided into upper and lower parts (opened). The lower part of the packaging box 2 is formed in a tray shape and is displayed at the store with the contents stored. The upper part of the packaging box 2 is discarded.

  Next, as shown in FIG. 15, the user grasps the upper part of the upper plate 71 and pulls it diagonally downward. Then, the upper plate 71 and the lower plate 70 are cut along the lower part of the pair of inclined cutting lines 63 and the pair of vertical cutting lines 64. Thereby, the upper side plate 71 and the lower side plate 70 are in a state of extending forward from the second outer flap 56B via the first folding line L20, and between the upper end and the lower end of the lower portion of the packaging box 2 (the side surface of the peripheral wall 1A) ) Is formed with an opening 60A.

  In this state, engaging portions 65 including a pair of engaging convex portions 65A and a pair of engaging inclined portions 65B are formed on the left and right side edge portions of the opening 60A. The pair of engaging convex portions 65A is formed in a state of protruding inward from the side edge portions on the left and right sides of the opening 60A. The pair of engaging convex portions 65A correspond to the protruding portions of the inclined cutting lines 63 and are formed in a substantially semicircular shape. The pair of engaging inclined portions 65B is formed below the pair of engaging convex portions 65A. The pair of engaging inclined portions 65B correspond to the pair of inclined cutting lines 63, and are slightly inclined inward in the left-right direction from above to below. Further, corresponding to the pair of engaging convex portions 65A, a pair of concave portions 72 are formed in a substantially semicircular shape at both ends in the left-right direction of the upper plate 71. Here, as shown in FIG. 13, the left-right width W10 (the length of the second fold line L21) of the lower end portion of the upper plate 71 is substantially the same as the left-right width of the lower plate 70 (the length of the first fold line L20). Yes, and longer than the interval W20 at the lowest point of the pair of recesses 72. Further, the left-right width W10 of the lower end portion of the upper plate 71 is shorter than the left-right width W30 of the upper end portion of the upper plate 71 (the maximum width of the upper plate 71).

  Next, as shown in FIGS. 16 to 18, the user bends the lower plate 70 inward along the first fold line L20 and bends the upper plate 71 inward along the second fold line L21. In addition, the user engages the pair of concave portions 72 with the pair of engaging inclined portions 65 </ b> B while causing the upper portion of the upper plate 71 to enter the inside of the packaging box 1. The pair of recesses 72 are engaged (engaged) with a pair of engagement inclined portions 65B having a play. The pair of engaging convex portions 65 </ b> A engage with the left and right end portions of the upper plate 71 above the pair of concave portions 72. Specifically, the upper plate 71 is in a state in which the front liners 9B at the left and right end portions thereof are in contact with the back liners 9C of the pair of engaging convex portions 65A.

  As shown in FIG. 18, in this state, the lower plate 70 is provided in a state extending obliquely upward and outward from the lower edge portion of the opening 60 </ b> A, and the upper plate 71 is obliquely upward and inward from the upper end portion of the lower plate 70. It is provided in the state extended to. That is, the lower plate 40 and the upper plate 71 are formed in a substantially triangular shape (angle θ10≈90 degrees) protruding forward. The angle θ20 formed by the lower plate 70 and the horizontal plane is set to about 30 degrees, and the angle θ30 formed by the upper plate 71 and the horizontal plane is set to about 60 degrees.

  As described above, the packaging box 2 is opened, and the upper plate 71 is held in the forward inclined posture. Thereby, the store visitor can visually check the advertisement (POP advertisement) displayed on the upper side plate 71 from diagonally upward on the front side. Further, since the upper plate 71 is formed wider in the vertical direction than the lower plate 70, it is possible to secure a large display space for the advertisement and make the advertisement stand out.

  According to the packaging box 2 according to the second embodiment described above, it becomes possible to hold the upper plate 71 in an inclined posture by weakening the repulsive force acting on the bent portion of the lower plate 70 and the upper plate 71. The substantially same effect as the packaging box 1 according to the first embodiment can be obtained. Further, according to this configuration, the upper plate 71 and the opening 60A are gradually formed wider from the bottom to the top (see FIG. 13). Further, by bending the lower plate 70 and the upper plate 71, the pair of concave portions 72 of the upper plate 71 can be lowered than the pair of engaging convex portions 65A (see FIG. 16). For this reason, the overlap width W2 between the pair of recesses 72 and the pair of engagement inclined portions 65B can be sufficiently secured (see FIG. 13). Thereby, the engagement between the left and right end portions (concave portion 72) of the upper plate 71 and the engaging portions 65 (engaging convex portions 65A and engaging inclined portions 65B) can be strengthened, and the upper plate 71 can be It is possible to further effectively suppress the separation from each engagement portion 65.

  The upper plate 71 (concave portion 72) and the engaging portion 65 (engaging convex portion 65A and engaging inclined portion 65B) described above may be applied to the packaging box 1 according to the first embodiment. That is, in the second opening structure 30 of the packaging box 1, the upper inner plate 41B is omitted, the concave portion 72 is formed in the upper outer plate 41A, the engaging convex portion 65A and the side convex portion of the second lower opening 30B, The engagement inclined portion 65B may be formed.

  Moreover, in the packaging box 2 which concerns on 2nd Embodiment, although the left-right width W10 of the lower end part of the upper side board 71 was set longer than the space | interval W20 of a pair of recessed part 72, this invention is not limited to this. As shown in FIG. 19, as the packaging box 2 (blank 6) according to the modification, the interval W <b> 20 between the pair of recesses 72 is longer than the left-right width W <b> 10 of the lower end portion of the upper plate 71 and the upper end portion of the upper plate 71. The left and right width W30 (maximum width) may be set shorter.

  Moreover, in the packaging box 2 which concerns on 2nd Embodiment, although each cutting line 62-64 was formed in the left side of the side wall 51B, it is not limited to this, For example, it is formed in the right side and center of the side wall 51B. Also good. In addition, the cutting lines 62 to 64 may be formed on at least one of the pair of end walls 50A and 50B instead of / in addition to at least one of the pair of side walls 51A and 51B.

  Moreover, in the packaging box 2 which concerns on 2nd Embodiment, although the cut tape 61 was used for the opening structure 60, it is not restricted to this, The liner cut etc. which cut | disconnected the zipper and the back liner 9C linearly are used. It may be.

  In the packaging box 2 according to the second embodiment, the concave portion 72 is formed on the upper plate 71 and the engaging convex portion 65A is formed on the side edge portion of the opening 60A. The recess 72 and the engaging protrusion 65A may be omitted as long as the part is positively engaged with the left and right side edges of the opening 60A.

  In the packaging boxes 1 and 2 according to the first and second embodiments, the angle θ1 formed by the lower plate 40 and the upper outer plate 41A and the angle θ10 formed by the lower plate 70 and the upper plate 71 are about 90 respectively. However, the present invention is not limited to this. The angles θ1 and θ10 may be set in a range of 70 degrees or more and 160 degrees or less. For example, when the angles θ1 and θ10 are less than 70 degrees, the repulsive force acting on the bent portions (second folding lines L11 and L21) of the lower plate 40, the upper outer plate 41A (the lower plate 70 and the upper plate 71) becomes strong. In order to begin, there is a possibility that the state where the left and right end portions of the upper plates 41 and 71 are engaged with the pair of engaging portions 39 and 65 cannot be maintained. On the other hand, when the angles θ1 and θ10 exceed 160 degrees, the upper outer plate 41A and the upper plate 71 are close to the upright state, which makes it difficult to show the advertisement to the store visitor. In that regard, in the packaging boxes 1 and 2 according to the first and second embodiments, the above-described problems can be suppressed by setting the angles θ1 and θ10 in the range of 70 degrees to 160 degrees. The angles θ1 and θ10 are more preferably right angles or obtuse angles (an angle larger than 90 degrees and smaller than 160 degrees). In addition, the angles θ2 and θ20 formed by the lower plates 40 and 70 and the horizontal plane and the angles θ3 and θ30 formed by the upper plates 41 and 71 (upper outer plate 41A) and the horizontal plane are set in the above ranges. It may be changed (adjusted) as appropriate. The lower plates 40 and 70 may extend substantially horizontally from the lower edge of each opening 30B and 60A toward the outside (front side). That is, the lower plates 40 and 70 may be provided parallel to the horizontal plane (θ2, θ20 = 0 degrees).

  In the packaging boxes 1 and 2 according to the first and second embodiments, information such as advertisements is printed on the front liner 9B (upper surface) of the upper outer plate 41A and the upper plate 71. It is not limited. For example, a sticker on which information such as an advertisement is printed may be attached to the upper outer plate 41A or the upper plate 71. Further, this information is not limited to an advertisement, and may be a barcode (one-dimensional code, two-dimensional code) or the like.

  Moreover, in the packaging boxes 1 and 2 which concern on 1st and 2nd embodiment, although many cutting lines 21-23, 31-36, 62-64 were formed with the sewing machine wire and the zipper, not only this, Any cutting line may be used as long as the user can manually cut the cardboard sheet.

  In the packaging boxes 1 and 2 according to the first and second embodiments, the lower side plates 40 and 70 and the upper side plates 41 and 71 are formed by cutting a part of the side walls 11B and 51B, and the second lower side opening. Although the portion 30B and the opening 60A are formed in a region obtained by cutting the upper plates 41, 71, etc., the present invention is not limited to this. For example, the upper plates 41 and 71 and the openings 30B and 60A and the like may be separately formed in the state of the blanks 5 and 6.

  In the packaging boxes 1 and 2 according to the first and second embodiments, the peripheral walls 1A and 2A are formed in a rectangular tube shape, but the present invention is not limited to this. For example, the peripheral wall may be formed in a cylindrical shape having a polygonal cross section other than a quadrangle, or may be formed in a cylindrical shape having a circular or elliptical cross section (not shown). Also, the shape of the bottom surface and the top surface may be formed in a polygonal shape other than a quadrangle in accordance with the cross-sectional shape of the peripheral walls 1A and 2A, or may be formed in a circular shape or an elliptical shape (not shown).

  Moreover, although the packaging boxes 1 and 2 which concern on 1st and 2nd embodiment were A-type cardboard boxes, this invention is not limited to this. For example, each of the opening structures 20, 30, 60 described above may be applied to various types of cardboard boxes such as a B type, a C type, and a slave type.

  Moreover, although the packaging box 1 which concerns on this embodiment was formed with the cardboard made from paper, it is not restricted to this, For example, you may form with the board made from a cardboard, resin, etc.

  In addition, description of the said embodiment shows the one aspect | mode in the packaging box which concerns on this invention, Comprising: The technical scope of this invention is not limited to the said embodiment.

1, 2 Packaging box 1A, 2A Perimeter wall 11B, 51B Side wall (side)
30B Second lower opening (opening)
38, 42 Cut portion 39, 65 Engagement portion 40, 70 Lower side plate 41, 71 Upper side plate 41A Upper outer side plate 41B Upper inner side plate 60A Opening portion 65A Engagement convex portion 72 Recessed portion θ1, θ10 Angle

Claims (6)

A peripheral wall (1A, 2A) in which an opening (30B, 60A) is formed on the side surface;
A lower plate (40, 70) provided in a state extending outward or obliquely upward from the lower edge of the opening;
An upper plate (41, 71) provided in a state extending obliquely upward inward from the tip of the lower plate and displaying information on its upper surface;
Engaging portions (39, 65) that are formed at side edges of the opening and that engage with the widthwise end of the upper plate that intersects the vertical direction to hold the upper plate in an inclined posture; A packaging box (1, 2) characterized by comprising.   2. The packaging box according to claim 1, wherein angles (θ1, θ10) formed by the lower plate and the upper plate are in a range of 70 degrees to 160 degrees. The upper plate is
An upper outer plate (41A) provided in a state extending obliquely upward from the front end of the lower plate;
A notch (38) provided in a state extending obliquely downward from the upper end of the upper outer plate toward the inside of the peripheral wall and sandwiching the engaging portion with the widthwise end of the upper outer plate The packaging box according to claim 1 or 2, further comprising an upper inner plate (41B) to be formed.   The packaging box according to claim 1, wherein the engaging portion has a cut portion (42) that sandwiches an end portion in the width direction of the upper plate. At the end in the width direction of the upper plate, a recess (72) that engages with the side edge of the opening is formed in a recessed state,
The engaging portion includes an engaging convex portion (65A) protruding inward from a side edge portion of the opening,
The packaging box according to claim 1, wherein the engagement convex portion engages with an end portion in the width direction of the upper plate above the concave portion. Each of the lower plate and the upper plate is formed by a part of the peripheral wall cut along a cutting line extending upward from the lower end of the peripheral wall,
The opening is formed at a position where the lower plate and the upper plate are cut along the cutting line,
6. The packaging box according to claim 1, wherein the upper plate is formed so as to gradually spread in the width direction from below to above.

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