JP5494751B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box used for packaging beverages in containers such as canned beer and pet (PET = Polyethylene terephthalate) bottled beverages.

  Conventionally, corrugated cardboard wrap round packaging boxes (hereinafter sometimes referred to as wrap round cases or simply cases) as shown in FIG. 16 (perspective view) have been used for packaging during the distribution of canned beer. Yes. Many cardboard cases are stacked on a pallet and stored in a warehouse or the like, and are shipped from a manufacturer or the like. In many cases, supermarkets and other stores are stacked and displayed.

During shipping and / or distribution and sales, the stacked cases, especially the case placed underneath, are subject to a stacked load, and the top and bottom cardboards of the case are crushed at the same time in the box length direction. As shown in FIG. 15 (stacking action diagram), for example, a so-called “body bulge” is often produced on the side surface of the box as shown in FIG. In the wrap round case, the “body bulge” usually appears more prominently on the side surface than the width surface (wife surface).
The stacked cases are often placed under various distribution environments (storage and transportation). Therefore, in designing a packaging of a beverage packaging box, as such distribution environment, typically, 23 ° C. and 50% RH (normal state) to 30 ° C. and 90% RH (high humidity) are assumed as distribution environment conditions. Note that the case placed in the above-mentioned distribution environment may come into close contact as if the corrugated cardboard, which is a packaging material, gets wet with water due to condensation of the can and the like, and the step is almost completely crushed, so that it can be eaten into the can. When closely attached to the can, the amount of change in the box height direction is maximized. The magnitude of the change in the height direction affects the amount of swelling. A large amount of “blowing” is detrimental to the aesthetics, which lowers the consumer's willingness to display and sell at the store, which is a sales problem.

  By the way, there are two types of cans for cans. One is that the top and bottom of the can are drawn. The other is that the can shape is a so-called straight shape (the top portion and the bottom portion are not drawn). The former is mainly used for alcoholic beverages such as beer, carbonated beverages, sparkling beverages, etc., the can itself has internal pressure resistance, while the latter gives so much internal pressure resistance for coffee, tea, milk drinks, fruit juice, sports drinks, etc. It is often used for drinks that are not necessary. The can material is a metal such as steel or aluminum. However, even if it is a packaging box of cans made of any material, if the cases are stacked at the time of distribution, a load is applied to the case placed below, and the side of the case in the lengthwise direction is outward in an arc shape. There was a problem that the deforming force was applied and the above-mentioned “body swelling” occurred and the aesthetic appearance was impaired.

In recent years, PET bottles that can be carried with caps, soft drinks in bottle cans, sports drinks, and soft drinks have gained popularity among consumers, especially young people, with a momentum that surpasses the above cans (Nationwide) Soft drink industry association 2003 survey). Conventionally, a corrugated cardboard box called an A-type box in the industry has been mainly used for packaging PET bottles and bottle cans during distribution. This A-type box is classified from A-1 type to A-5 type depending on the length of the inner flap and the outer flap, and the code number 0201 type is used for the exterior cardboard box format defined in JIS-Z-1507. To 0205 form. Among them, the 0201 type (A-1 type) packaging box with the outer flap butt is most frequently used. As shown in FIG. 18, this packaging box is supplied in the form of a one-piece blank sheet (mounting paper) with a normal folding ruled line and a cutting line, and a caser in a form in which the seam is bonded with an adhesive. Supplied to automatic box making machines).
Similar to the wrap round case, the A-type packaging box is stacked on a pallet and stored in a warehouse or the like, and is delivered and shipped from a manufacturer or the like. These boxes may be displayed and sold in multi-tiers at stores such as supermarkets and mass retailers. Therefore, at the time of shipment / distribution and sale, the stacked packaging boxes, particularly the lower boxes, are subjected to a stacking load, and the top and bottom corrugated boards are crushed, and at the same time, mainly the box length. A force that deforms outward in an arc shape acts on the side surface in the direction, and as shown in FIG.
Therefore, wrap round cases used for packaging canned beverages, beverages in PET bottles, etc. 02
In the 01 type packaging box, there is a demand for a packaging box that is less likely to swell even when a stacked load is applied, maintains its aesthetic appearance, and has excellent boxing suitability with a caser.

By the way, the technique aiming at the deformation | transformation suppression of the side surface of a wrap round case and maintenance of aesthetics is already proposed by patent documents 1-patent documents 6.
For example, in Patent Document 1, a lateral groove is continuously formed on the upper side of the box side surface, and when a load is applied from above the packaging box, the vicinity of the groove is bent inward to form a side plate body. The blister is reduced.
Patent Document 2 forms a buckling guide line composed of a bent ruled line extending obliquely from the corner of the elevation plate toward the center side (see FIG. 17), and Patent Document 3 discloses opening of the box elevation plate comprising a cut line. At the same time as forming the tear band, the buckling guide line by the folding ruled line is put up and down away from the tear band.
In Patent Document 4, a bent ruled line extending toward the corner with an interval inward from the ridge line is put on both the vertical plate and the flat plate of the box, and a bent ruled line extending toward the corner is also put on the inner flap. is there. Further, in Patent Document 5, one bent ruled line and two bent ruled lines shifted in parallel are alternately arranged on the boundary part constituting the ridge part of the box with the cut line interposed therebetween. The two plate members are bent along the line. Further, Patent Document 6 repeatedly arranges two bent ruled lines that are inclined across a cut at the boundary portion between the vertical plate and the side plate of the box.

Japanese Patent Laid-Open No. 2005-053552 JP 2003-146329 A JP 2003-205935 A JP 2003-252325 A JP 2004-010065 A JP 2004-059001 A

  However, in the packaging box of Patent Document 1, there is no guarantee that the vicinity of the lateral groove is always bent inwardly by the stacked load. Some may fold inside and other parts may fold outward. In this case, the outer peripheral surface of the box becomes uneven and looks bad. Also, if there are parts that bend inward and outward on the four sides of the box, a difference in height will occur on the top of the box, making it difficult to maintain balance when stacking boxes, making it unstable. This causes a problem that the cargo collapses easily.

  The packaging boxes of Patent Documents 2, 3 and 4 are used to insert a buckling guide line by a folding ruled line on the long side of the box, but the paper quality of the box, the depth of the bent ruled line, and the method of engraving the ruled line on the paper However, in practice, many boxes have a problem in that they are not deformed uniformly according to the ruled lines, but are deformed at positions other than the ruled line marking positions.

  In addition, the packaging box of Patent Document 5 alternately arranges two folding ruled lines that are shifted in parallel with one folding ruled line across a cut at the boundary between the elevation plate and the side plate constituting the ridge portion of the case. In addition, the packaging box of Document 6 has a folded ruled line that is inclined with a cut, but in this box, the folding angle of the folded ruled line changes variously when a stacked load is applied. Therefore, it cannot be said that the effect of suppressing the deformation of the side surface and maintaining the aesthetic appearance is sufficient. Furthermore, this box has a problem that it is not only difficult to design because it is necessary to precisely process the boundary between the elevation plate and the side plate constituting the ridge portion, and the box making operation by an automatic machine is not easy.

  In view of various problems of the prior art, the present invention can be used as a packaging box used for transport packaging of canned beverages, beverages in PET bottles and the like, and can be used for distribution and sales. When stacking, the convex arc-shaped deformation of the side surface due to the piled load (trunk) can be suppressed, or the aesthetics can be maintained by making the change amount of the side surface inconspicuous. In addition, the present invention provides a packaging box having excellent suitability for automatic box making in a caser.

  The present invention has been variously studied on means for solving the above-mentioned problems. As a result, when the packaging boxes are stacked at the time of distribution and at the time of sale, the side surface has a convex arc-shaped deformation (cylinder). In order to suppress blistering or to make the amount of change in the side face inconspicuous, chamfer the edge of the longitudinal side (that is, the edge parallel to the ground) in contact with the top and / or bottom of the box. It was found that this could be solved. That is, by chamfering the ridges on the side surfaces in the length direction described above, the side surface that swells is not swelled in a convex arc shape, but the swell is reduced by sliding horizontally as a surface while maintaining a planar shape. Or, it has been found that the change amount of the side surface can be made inconspicuous. The movement in which the side surface that swells slides horizontally as a plane while maintaining a planar shape approximates the movement of a panda graph.

Thus, firstly, according to the present invention, among the four side surfaces of the beverage packaging box, each side surface and the top surface or the top surface and / or the boundary portion between the length side surface and / or the width direction side surface and the top surface and / or the ground surface. The beverage packaging box is characterized in that a chamfered portion formed of an inclined plane with a narrow width continuous with the ground is formed.
2ndly, this invention is a wrap round type beverage packaging box which encloses and seals a packaged article with a corrugated cardboard sheet, and among the four side surfaces of the box, the side surface is provided at the boundary between the longitudinal side surface and the top surface or the ground surface. It is a beverage packaging box characterized in that a chamfered portion formed of a flat inclined surface with a narrow width continuous to the top surface or the ground is formed.
Third, the present invention relates to a corrugated cardboard JIS-Z-1507 code 02 series beverage packaging box, and among the four sides of the box, the side surface in the length direction and / or the side surface in the width direction, the top surface and / or The beverage packaging box is characterized in that a chamfered portion formed of an inclined plane continuous to each of the side surfaces and the top surface or the ground is formed at a boundary portion with the ground.
4thly, this invention is a beverage packaging box of Claims 1-3 in which the drink of the said beverage packaging box is plastic bottle drinks, such as can drinks, such as beer and carbonated drinks, or a soft drink.
Fifth, the present invention provides the wrap-round beverage packaging box according to claim 2, wherein, among the corrugated cardboard blanks before the box is assembled, a part (side) of the inner flap or the outer flap on the side adjacent to the chamfered portion at the time of assembly. The beverage packaging box is characterized in that an edge-like protrusion is provided on the edge portion so that no gap is formed between the chamfered portion and the inner flap or the outer flap.

  Sixth, the present invention relates to a beverage packaging box of the code 02 series of JIS-Z-1507 of claim 3, and among the corrugated cardboard blanks before the box assembly, the side surface in the length direction and / or the side surface in the width direction and the top surface or The beverage packaging box is characterized in that the planar shape of the chamfered portion formed between the ground and the ground is substantially trapezoidal.

  Seventh, the present invention is the beverage packaging box according to claim 1, wherein the chamfered portion has a width (vertical dimension) of 5 to 40 mm.

In the present invention, among the four side surfaces of the beverage packaging box, each side surface and the top surface or the bottom surface are continuously connected to the boundary portion between the length direction side surface and / or the width direction side surface and the top surface and / or the bottom surface. Since the chamfered portion is formed of a flat surface with a narrow width, when the packaging boxes are stacked at the time of distribution and sales, the side surface that swells due to the stacked load does not bulge in a convex shape, It slides in the horizontal direction as a plane while maintaining the planar shape (see FIG. 15B).
Therefore, when the packaging boxes are stacked, it is possible to reduce the blistering that occurs on the side of the box placed below. In addition, the amount of change in the side face can be made inconspicuous, and as a result, the aesthetics can be maintained. In addition, it was possible to provide a packaging box with excellent boxing suitability with Caser.

  When chamfering is applied to a ridge that touches the top and / or bottom of a heavy beverage packaging box such as a can beverage or a plastic bottle beverage, the ridge is chamfered, so that it feels like a hand or finger when handling. Has a practical effect that it is soft, is less likely to be injured by the corners, and is easy to carry.

Next, the embodiments of the present invention will be described in detail by dividing them into common types.
First, the first type will be described.
The first type is a wrap round case 11 according to claim 2 in which a packaged product is wrapped and sealed with a cardboard sheet.
1 to 7, in order to enclose the can C, each pair of elevation plates 12 and 12 and the plane plates 13 and 13 are bent, and the joining margin 14 is joined to the opposite plane plate and affixed to the case. This is a wrap round case that forms a square cylindrical main body peripheral wall and closes both end faces of the square cylindrical main body by closing the inner flap 15 and the outer flap 16. The elevating plate 12 and the inner flap 15 are formed with a tear strip 17 for opening by half-cutting (liner cut). The content to be packaged is preferably a can beverage such as canned beer, but may be a PET bottle or a bottle can.

  In the case 11 of this embodiment, as shown in the blank before assembly in FIG. 1, the boundary portion (ridge) between the upright plate 12 and the flat plate 13 at the position adjacent to the constricted shape of the beverage can. Chamfered portions 18 a, 18 b, 19 a, and 19 b that are continuous with the respective elevation plates and flat plates are provided between the two bent ruled lines 20, 20, 21, and 21. In forming the chamfered portion, in addition to the ruled line, a perforation, an inner liner cut, or the like can be used.

  The internal dimensions of the box are selected and determined according to the size, weight, and number of items to be stored. For example, in the case of a 500 ml can, a can height of 167 mm, and a beer case with 24 bottles, the length L Is preferably 399 mm, the width W is 264 mm, the height H is 167 mm, the width H1 of the top side chamfered portion is 21 mm, and the width H2 of the ground side chamfered portion is preferably 12 mm. The material of the corrugated board to be used is a B-stage double-sided corrugated board and a base paper configuration: K180 × SCP120 × K180. However, the base paper configuration of the box to which the present invention is applied is not limited to the above, and there is no particular limitation.

  When the can C is wrapped with a packaging machine using the blank of FIG. 1, it is folded from each of the two folding ruled lines 20, 20, 21, 21 between the elevation plate 12 and the adjacent flat plate 13, The chamfered portions 18a, 18b, 19a, 19b between the two folding ruled lines are bent obliquely, and the can C is tightly packaged, as shown in FIGS. )become. As described above, the contents to be packaged are not limited to canned beverages such as canned beer, but are, for example, soft drinks such as “Pocari Sweat”, sports drinks, soft drinks PET bottles and bottle cans G as shown in FIG. Also good.

  When the wrap round cases 11 of this embodiment are stacked, the upright plate 12 does not bulge into a convex arc shape even when a stacked load is applied, but the side surface of the upright plate 12 is horizontal as a plane while maintaining a flat shape. Will slide in the direction. For this reason, it is possible to reduce the swollenness generated on the side surface of the lower stacked boxes, and to make the change amount of the side surface inconspicuous (see FIG. 15B).

In the case of the wrap round case, the both ends of the rectangular tube case main body are closed by closing the inner flap 15 and the outer flap 16, but the corners where the chamfered portions 18a, 18b, 19a, 19b and the flaps 15, 16 cross each other are closed. As shown in FIG. 5, a gap (a part surrounded by a circle) is likely to occur on the ridge. If a gap is generated, dust or the like may enter the box from the outside, and it is not hygienic when used as a case for packaging beverages. The aesthetics also deteriorate.
Therefore, as shown in the blank of FIG. 1, it is preferable to provide the ear-like protrusions A (the hatched portions in the figure) on both sides of the outer flap 16. By doing so, it is possible to prevent a gap from being formed between the chamfered portion and the inner flap when the case is assembled.
In addition, as shown in the blank of FIG. 6 of the present invention, when an ear-like protrusion B (shaded) is provided on a part of the inner flap 15 adjacent to the outer flap, in this case, as shown in FIG. As described above, it is possible to prevent a gap from being generated between the chamfered portion and the outer flap.

  In FIG. 2, the chamfered portion is formed by chamfering the two ridges in the length direction of the top and bottom surfaces of the case 11. This is because, in a wrap round case, the “body bulge” usually appears on the side surface longer than the width surface (wife surface). However, as shown in FIGS. 4 and 7, the chamfered portion may be formed only on the side surface in the longitudinal direction on the top surface side. Although omitted in the drawing, the chamfered portion may be formed only on the side surface in the length direction on the bottom surface side.

Other examples

Next, the second type will be described.
The second type is a corrugated cardboard box called an A-type box.
8 to 12 show an example of a 0201 type cardboard box in which both the top and bottom of the box are closed by both inner and outer flaps of the code 02 series of JIS-Z-1507. The contents G to be packaged are soft drinks, sports drinks, and soft drinks in PET bottles and bottle cans (for example, Pocari Sweat PET bottles have a bottle height of approximately 209 mm, and in the case of Dakara, 218 mm. The shape is chamfered, almost tetrahedron.

  The corrugated cardboard box shown in FIG. 8 given as a representative example of the second type is formed by bending each pair of side plates 22, 22, 23, 23 into a rectangular tube shape, joining one end thereof with a joining margin 24, and pasting the case. Thus, the peripheral wall is formed, and the upper and lower opening surfaces of the peripheral wall are closed with the inner and outer flaps 25a and 25b and the outer flaps 26a and 26b, and are fixed using a hot melt adhesive or the like. , 22 are provided with handle holes 27 for handling.

  In this cardboard box, as shown in the blank before assembly in FIG. 8, the boundary portions (ridges) where the side plates 22 and 23 and the inner flaps 25a and 25b and the outer flaps 26a and 26b at both the top and bottom positions intersect. In addition, chamfered portions 28a, 28b, 29a, 29b are formed in a trapezoidal shape when viewed from the plane so as to be continuous with each flap and the side plate, with the two folding ruled lines 30a, 30b, 31a, 31b being sandwiched between them. Yes. In forming the chamfered portion, in addition to the ruled line, a perforation, an inner liner cut, or the like can be used.

  The inner dimensions of the box are selected and determined according to the size, weight, and number of items to be stored. For example, a beverage containing 500 ml PET bottles and a cardboard box containing 24 bottles have a length L of 350 to 360 mm and a width. It is preferable that W is designed to be 233 to 240 mm, the height H is 209 to 218 mm, the width H1 of the top side chamfered portion is 24.31 mm, and the width H2 of the ground side chamfered portion is 8 mm. Moreover, the material of the corrugated board to be used is a B-stage double-sided corrugated board and a base paper configuration: K180 × SCP160 × K180. However, the base paper configuration of the box to which the present invention is applied is not limited to the above, and there is no particular limitation.

  When the above blank is assembled and the PET bottle G with beverage is packaged, each of the two side plates 22, 22, 23, 23 and the two inner flaps 25a, 25b and the outer flaps 26a, 26b Folded from the folded ruled lines 30a, 30b, 31a, 31b, and the chamfered portions 28a, 28b, 29a, 29b between the two folded ruled lines bend diagonally, as shown in FIGS. The PET bottle G is tightly packaged, and the appearance of the box is multifaceted and unique as shown in the figure.

  When such packaging boxes are stacked, the side surfaces 22 and 23 do not bulge into a convex arc shape even when a load is applied, but the side surfaces slide horizontally as a plane while maintaining a planar shape. It becomes. Therefore, it is possible to reduce the swollenness generated on the side surface of the boxes stacked and placed below, and to make the change amount of the side surface unnoticeable (see FIG. 15B).

  In the above embodiment, the chamfered portion is formed by chamfering each of the four ridges on both sides of the box. However, as shown in the blank of FIG. 11, chamfered portions may be formed only on the four ridges on the top surface side. In addition, as shown in FIG. 12, a chamfered portion may be formed only at a boundary portion between the longitudinal side surface of the box and the top surface. In this case, the box side shape changes from an octagon to a hexagon.

Box swelling test

<< Test 1 >>
Next, using a box (wrap round case) made according to the present invention as a sample, a 500 ml can, a can height of 167 mm, and 24 beer cans are packaged. The amount was measured.
In the case of Test 1, the inner dimensions of the box are 399 (L) × 264 (W) × 167 (H) mm, and the configuration of the corrugated cardboard is K180 × SCP120 × K180, both sides of the B step. The top and bottom chamfers are shown in Table 1, and Examples 1, 2, and 3 were used.

  In addition, a comparative test of the amount of swelling of an Asahi beer case that was not chamfered with an equivalent current canned beer case (wrap round case dimensions, base paper configuration: K180 × SCP120 × K180) was made as Comparative Example 1.

  Furthermore, the wrap round case which gave the buckling induction wire to the side surface equivalent to patent document 3 was made into the comparative example 2. FIG.

The test method is as follows.
As shown in FIG. 13, a weight of 256 kg is applied to one case of a sample case (test sample) that wraps 24 cans containing 500 ml of two-piece aluminum cans. As shown in FIG. 14, it measured with the right angle ruler.
The measurement conditions were as follows: after standing for 3 days at 30 ° C. and 90% humidity, the amount of swollen body was measured by the method shown in FIG. 14 on both sides of the chamfered side surface. The load was set to 256 kg. Assuming that 7 pallets are stacked, when 3 pallets are stacked, 1 case (including 24 500 ml canned beers) is 12.9 kg, so the weight applied to the bottom tier is 12. This is because 9 × (7 stages × 3 pallets—1 stage), which is approximately 256 kg.

The measurement results are shown in Table 1.

<Example 1> In a wrap round case containing canned beer, chamfer the ridges of the top and bottom. FIG.
<Example 2> In a wrap round case containing canned beer, chamfer the ridges of the top and bottom. FIG.
<Example 3> In a wrap round case containing canned beer, only the ridge of the ground is chamfered.
<Comparative Example 1> A wrap round case containing canned beer, without chamfering. FIG.
<Comparative example 2> A wrap round case containing canned beer with a buckling guide wire. FIG.

<< Test 2 >>
Next, using a box (wrap round case) prepared according to the present invention as a sample, a 500 ml plastic bottle, a bottle height of 209 mm, and 24 bottles of Pocari Sweat are packaged, and evaluation test 2 is performed for body swelling. The amount of torso swelling was measured.
Table 1 shows the chamfering, inner dimensions of the box, base paper composition, test / loading conditions, and the measurement results.

<Example 4> In a wrap round case containing pokari, only the top edge of the top surface is chamfered.
<Comparative Example 3> A wrap round case with pokari and no chamfering.

<< Test 3 >>
Next, a 500 ml plastic bottle, a bottle height of 218 mm, and 24 bottles of Dakara plastic bottles are packaged using the box (0201 type case) prepared according to the present invention as a sample, and an evaluation test 3 is performed for body swelling. The amount of torso swelling was measured.
Table 2 shows the chamfering, inner dimensions of the box, base paper composition, test / loading conditions, and the measurement results.

<Embodiment 5> In the 0201 type case with dakara, each crest of the top and bottom is chamfered. 8, 9, 1
0
<Example 6> In a 0201 type case with dakara, chamfering the four edges of the top. FIG.
<Example 7> In a 0201 type case with dakara, only the top edge of the top surface is chamfered. FIG.
<Comparative example 4> A 0201 type case with dakara without chamfering. FIG.

Tables 1 and 2 show the test results.
As shown in FIG. 15 (b), the side surface that becomes swollen with respect to the load from the upper side slides in parallel with the vertical direction, thereby significantly reducing the swollen shape caused by the compression in the height direction. It became clear.
In particular, in the case of the 0201 type case, as the number of chamfered portions is increased as much as possible, the swelling of the body decreases. This is made clear by the test 3 example.
The width of the chamfered portion is the minimum width depending on the shape of the container put in the packaging box, and is approximately 5 mm or more. Further, the maximum width of chamfering tends to saturate at 21 mm as seen in the example of Test 1, and therefore no further effect can be expected even if it exceeds 40 mm.

  The present invention can be used for packaging beverages in containers such as canned beer and beverages in plastic bottles. Furthermore, it has the possibility of use for packaging fluids (oil, soy sauce, etc.) other than beverages contained in rigid containers (cans, PET bottles, bottles) that can withstand the accumulated pressure.

The figure which shows the blank of the wrap round case which formed the chamfering part which consists of a plane with a narrow width | variety in the boundary part of the length direction side surface of a box, a top | upper surface, or the ground. The assembly perspective view of the blank of FIG. The partially vertical side view of the packaging state of the can. The partially vertical side view of the packaging state of a PET bottle same as the above. The perspective view of the wrap round case which made the clearance gap in the location of the chamfered ridge part both corners. The figure which shows the blank of the wrap round case which provided the ear-shaped protrusion part B in a part of inner flap 15. FIG. FIG. 7 is an assembled perspective view of the blank of FIG. 6. The figure which shows the blank of 0201 type | mold case which chamfered the side surface of the length direction and width direction of both sides of a top and bottom. FIG. 9 is an assembled perspective view of the blank of FIG. 8. The partially vertical side view of the packaging state of a PET bottle same as the above. The figure which shows the blank of 0201 type case which chamfered 4 ridges of the top | upper surface side of a box. The figure which shows the blank of the other examples of 0201 type case which chamfered the boundary of the length direction side surface and top surface of a box similarly Schematic of the box swelling test method. Schematic of the method for measuring the amount of swelling of the trunk. (A) is an explanatory view showing a state of swelling of the case side when the accumulated pressure is applied to the conventional case, and (b) is a state of swelling of the case side when the accumulated pressure is applied to the case of the present invention. Explanatory drawing which showed the state. The perspective view of the conventional wrap round case. The perspective view of the conventional wrap round case which formed the buckling induction line. The developed view and perspective view of the conventional 0201 type case.

DESCRIPTION OF SYMBOLS 11 Case 12 Elevation board 13 Plane board 14 Connecting margin 15 Inner flap 16 Outer flap 17 Rip zone 18a, 18b, 19a, 19b Chamfering part 20, 21 Bending ruled line 22 Side plate 23 Side plate 24 Connecting margin 25a, 25b Inner flap 26a, 26b Outer flap 27 Hand holes 28a, 28b, 29a, 29b Chamfered portions 30a, 30b, 31a, 31b Bending ruled lines

Claims (1)

In the packaging box of wrap round formula for sealing entrainment to be packaged goods in corrugated cardboard sheets,
The packaging box has a top surface and a ground that face each other up and down, and a pair of left and right longitudinal sides that connect the top surface and the ground, and another packaging box is stacked on the top surface. Yes,
Continuous and the longitudinal side of the packaging box, the top surface and both or either between the boundary portion of the ground surface, the length direction sides said top surface and said ground both or either one bets Forming a chamfered portion consisting of an inclined plane ,
Of the inner flaps extending from the side surface in the longitudinal direction, on the position side adjacent to the chamfered portion, during assembly, between the chamfered portion and the inner flap, between at least a part of the top surface and the inner flap. And extending the ear-shaped protrusion so that no gap is generated between at least a part of the ground and the inner flap,
The beverage packaging box , wherein an eye direction of the corrugated cardboard sheet coincides with an extending direction of the ear-shaped protrusion .

Images