KR20060055899A - The packaging box and the folding method of packaging box - Google Patents

Abstract

The present invention is partitioned by a vertical ruled line 70 in the center of the cardboard consists of four sides of the left and right side wall (21) 23 and front and rear wall (22, 24) is bonded by the joint 50 In the box, the lower left side wall blade 41 connected to one side of the left side wall surface 21 and the other side of the left side wall surface 21 and bent 180 ° bent inward to have a double wall surface It is connected to the inner left side wall surface 31 and one side of the right side wall 23, the lower right side wall wing 43 and the other side of the right side wall 23 to form a bottom surface in the inward direction to have a double wall surface An inner right wall surface 33 bent by 180 ° and an upper front wall blade 32 connected to one side of the front wall surface 22 to form an upper surface and the other side of the front wall surface 22 are double wall surfaces. The inner front wall surface 42 is bent 180 ° inward to have a side, and is connected to one side of the rear wall surface 24 A packing box, including those that are then inside post after the top to form a surface and the wall blades 34 the connected to the other side of the wall (24) so as to have a double wall 180 ° bending inwardly wall 44 is formed.

According to the present invention is a packaging box for increasing the compressive strength and the bursting strength of the packaging box using a thin cardboard.

Packaging, Logistics, Box, Compressive Strength, Burst Strength

Description

{The packaging box and the folding method of packaging box}

1 is a development view showing a packaging box according to the prior invention.

FIG. 2 is a perspective view illustrating an assembled state of the packaging box of FIG. 1. FIG.

Figure 3 is an exploded view showing a packaging box according to the present invention.

4 to 10 are perspective views showing an assembling procedure of the packaging box of FIG. 3.

11 is a perspective view showing another embodiment.

<Description of the symbols for the main parts of the drawings>

21: left wall 22: front wall

23: right wall surface 24: rear wall surface

31: Internal left wall 31 ', 33': Assembly protrusion

32: upper front wall blade 33: inside right wall surface

34: upper rear wall wing 41: lower left wall wing

42: front wall 42 ', 44': assembly groove

43: lower side wall blade 44: inner rear wall surface

50: seam 100: packing box

The present invention relates to a packaging box, and more particularly to a packaging box with improved compressive strength and burst strength.

Generally, the present invention relates to a box mainly used for logistics and loading. As the industry develops recently and the needs of consumers vary, the types of goods become more complicated and the number of shock-sensitive goods increases. The role of packaging boxes for the protection of municipal goods is becoming more important.

1 is a development view showing a conventional packaging box 1, in which the center of the packaging box 1 is from the left side to the left side 2a, the front side 2b, the right side 2c, the rear side 2d and the joint portion ( 7) consisting of the upper inner wings (3a) (3b), the lower inner wings (5a) (5b), the upper outer wings (4a) (4b) and the lower outer wings (6a) (6b) It is composed.

A vertical ruled line 8b is formed at the boundary line of each of the left side 2a, front 2b, right side 2c, and rear 2d, and each left side 2a, front 2b, and right side 2c. ), A rear ruled line 8a is formed at the boundary line of the rear surface 2d and the upper and lower inner blades and the upper and lower outer blades.

The upper and lower parts connected to the respective surfaces have an upper inner wing 3a and a lower inner wing 5a connected to the left side 2a, and an upper outer wing 4a and a lower outer wing connected to the front surface 2b. 6a), the upper inner blade (3b) connected to the right side (2c) and the lower inner blade (5b), the upper outer wing (4b) and the lower outer wing (6b) connected to the rear (2d).

FIG. 2 illustrates a state in which the packaging box of FIG. 1 is assembled, and the joint part 7 is bonded to the left side 2a so that the left side 2a, front side 2b, right side 2c, and rear side 2d are shown. ) Into a square box. In order to finish the lower part, first, the lower inner wings 5a and 5b on both sides are folded at 90 degrees, and the lower outer wings on both sides are folded at 90 degrees to contact the lower inner wings 5a and 5b, and then the lower sides on both sides The tape 9 is attached and sealed to the part where the outer blades 6a and 6b contact.

After finishing the lower part, put the packaged goods (not shown) in the packing box and finish the upper part.

In order to close the upper part, the upper inner blades 3a and 3b on both sides are folded at 90 °, and the upper outer wings on both sides are folded at 90 ° to contact the upper inner wing, and then the upper outer wings 4a on both sides. The tape 9 is adhered to and sealed at the portion where (4b) abuts.

Current logistics boxes generally use cardboard, depending on the type of cardboard, double-sided cardboard, double-sided cardboard and triple double-sided cardboard and the like. In addition, the distribution box using the cardboard is used by varying the type of cardboard constituting the box according to the type of contents to be packed in the box.

Logistic box should have appropriate compressive strength in case of loading the box in two or more stages in order to protect the product and improve the loading efficiency during storage or transportation of the box.The box should not be damaged by the impact applied to the outside of the box. It must have adequate burst strength.

Most of the logistic boxes currently used are produced in an automatic production line to reduce the manufacturing cost of the box, and users who use the box also often assemble the box in the automatic line to contain the products. Logistics and loading of goods using a logistics box called A-1 type box shown in. Except for assembled boxes without flaps at the top, which are used for special purposes, existing logistics boxes are used to construct corrugated cardboard when it is necessary to increase the compressive strength or bursting strength of boxes to contain heavy goods or products that require protection. Increasing the basis weight of the paper, artificially increasing the strength, such as pulp content control and chemical treatment.

The problem of the packaging box as described above, first, in order to increase the strength of the cardboard inevitably increases the box price in proportion to the strength of the box. Second, the thicker the cardboard, the more difficult the assembly of the box, the lower the productivity. Third, the weight of the packaging box itself was increased, which caused the logistics cost to increase.

The present invention is to solve the above-mentioned problems, it is an object to provide a packaging box to increase the compressive strength and the bursting strength by assembling the four sides of the packaging box consisting of a double wall surface.

The above-mentioned object is connected to one side of the left side wall and the lower left side wall wing which forms the bottom surface, and is connected to the other side of the left side wall and the inner left side wall surface bent 180 ° inward to have a double wall surface, and connected to one side of the right side wall surface. Upper right wall surface connected to the other side of the lower right wall surface wing and the right wall surface to form a bottom surface, and bent 180 ° inwardly to have a double wall surface, and an upper front wall surface connected to one side of the front wall surface to form a top surface. It is connected to the other side of the wing and the front wall, and the inner front wall is bent 180 ° inward to have a double wall, and the upper rear wall wing and the other side of the rear wall are connected to one side of the rear wall to form an upper surface. This can be achieved by forming an inner rear wall surface that is bent 180 ° inward to have a wall surface.

Hereinafter, with reference to the accompanying drawings will be described the configuration of the present invention.

3 is a state in which the packaging box according to the present invention is deployed, Figures 4 to 10 is a perspective view showing an assembling procedure of the packaging box of Figure 3, Figure 11 is a perspective view showing another embodiment. The packaging box of the present invention for achieving the above object is divided into a vertical ruled line 70 in the center of the corrugated cardboard, and the left and right wall surfaces 21 and 23 and the front and rear wall surfaces 22 and 24 are used. In the box made of a side bonded by the joint 50, the lower left side wall blade 41 is connected to one side of the left side wall surface 21 and connected to the other side of the left side wall surface 21 The inner left wall surface 31 bent 180 ° inward to have a double wall surface, and the lower right wall blade 43 and the right wall surface 23 connected to one side of the right wall surface 23 to form a bottom surface. An inner right wall surface 33 which is bent 180 ° inward to have a double wall surface connected to the other side of the upper wall, and an upper front wall blade 32 and the front wall connected to one side of the front wall surface 22 to form an upper surface; Connected to the other side of the wall surface 22 is bent inward inward 180 degrees to have a double wall surface 180 ° inward to have a double wall surface connected to the front wall surface 42 and the upper rear wall blade 34 connected to one side of the rear wall surface 24 to form an upper surface and the other side of the rear wall surface 24. It includes forming the inner rear wall surface 44 to be bent.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention is demonstrated in detail.

Fig. 3 shows a state where the packaging box is developed, and the boundary line between the joint 50, the left wall 21, the front wall 22, the right wall 23, and the rear wall 24 from the center of the left side. It is formed by dividing the ruled line 70. On the upper and lower portions of the left wall surface 21, the inner left wall surface 31 and the lower left wall surface blade 41 each having an assembly protrusion 31 'are formed with the horizontal ruled line 60 therebetween. On the upper and lower portions of the front wall surface 22, an inner front wall surface 42 having upper front wall blades 32 and assembly grooves 42 'is formed with a horizontal ruled line 60 therebetween. On the upper and lower sides of the right wall surface 23, the inner right wall surface 33 and the lower right wall blade 43 each having an assembly protrusion 33 'are formed with the horizontal ruled line 60 therebetween. On the upper and lower portions of the rear wall surface 24, an inner rear wall surface 44 having an upper rear wall blade 34 and an assembly groove 44 'is formed with a horizontal ruled line 60 therebetween.

4 is assembled to form a four-sided wall surface of the box for packaging, the inner surface of the joint portion 50 and the rear wall surface 24, which is configured to extend to the left wall surface 21 in a folded state in the shape of a square column, the adhesive Fix using a back light.

5 is to seal the lower part of the open packing box after fixing the joint, the box 100 folded in a rectangular pillar shape by rotating the 180 ° is turned upside down.

FIG. 6 is for forming the front and rear wall surfaces of the packing box in two layers, and the inner front wall surface 42 is in contact with the front wall surface 22 along the horizontal line 60 formed on one side of the front wall surface 22. Bending 180 degrees inward direction so as to. As shown in the partial enlarged cross-sectional view shown along the leader line, the front wall surface 22 on the outside and the inner front wall surface 42 on the inside form two wall surfaces.

The inner direction refers to an inner space formed along the inner wall for packing the article in the packaging box 100 as shown by the arrow, and refers to the inner direction.

180 ° bending means that the inner front wall surface 42 extending to the front wall surface 22 in contact with the inside of the front wall surface 22 in the inward direction along the transverse line 60 as in the partially enlarged " A " As such, the walls are arranged side by side vertically.

7 is to seal the lower end of the packaging box with a tape, and the lower left side wall wings 41 and the lower right side wall wings 43 facing each other are bent by 90 ° inward to finish sealing the lower space. The tape 80 is attached and fixed to the boundary line between the lower left side wall blade 41 and the lower right side wall blade 43.

The 90 ° bending is folded inward along the horizontal ruled line 60 formed between the left wall 21 and the lower left face 41 as in the partially enlarged " B " Lower left side 41 is to be folded at right angles as formed horizontally.

8 is for sealing the upper end of the packaging box, and rotates the upper and lower portions of the packaging box 100 by 180 ° to turn the open upper end up.

9 is for forming two layers of left and right wall surfaces of the packaging box, and each of the inner left wall surface 31 and the inner right wall surface 33 facing each other is bent by 180 ° inward.

The inner left wall surface 31 and the inner right wall surface 33 are bent 180 ° in the inward direction. As shown in the partially enlarged cross-sectional view by the leader line, the inner left wall surface 31 is formed inside the left wall surface 21 to form a double wall surface. An inner right wall surface 33 is formed inside the right wall surface 23 to form a double wall surface.

Each of the assembling protrusions 31 ′ and 33 ′ is coupled to correspond to each of the assembling grooves 42 ′ and 44 ′ when being bent inward, so that the wall surface bent in the inward direction is fitted without being separated.

10 is for closing the upper part of the packaging box, the upper front wall blade 32 and the upper rear wall blade 34 in a state folded 90 ° inward direction upper front blade 32 and the upper rear wall blade. The tape 80 is attached to the boundary line where the 34 abuts to close the top of the packaging box 100 to be sealed.

Inside left wall surface 21, front wall surface 22, right wall surface 23, rear wall surface 24, inner left wall surface 31, inner front wall surface 42, inner right side of each packing box 100, respectively. The wall surface 33 and the inner rear wall surface 44 are bent to form a double wall surface.

Figure 11 shows another embodiment of the packaging box, the front and rear sides of the packaging box 100 folded in the same process from Figure 3 to Figure 7 is a state in which the inner wall is double.

The front wall surface 22 and the inner front wall surface 42 are in contact with each other, and the rear wall surface 24 and the inner rear wall surface 44 are in contact with each other. The inner front wall surface 42 is bent 180 ° inwardly inside the front wall surface 22, and the inner rear wall surface 44 is bent 180 ° inwardly inside the rear wall 24 to form a double wall surface, respectively. do.

As described above, in the state in which the front and rear wall surfaces are configured in a double, the upper front wall blade 32 and the upper rear wall blade 34 formed to face each other is bent inward 180 degrees to constitute a triple wall surface. Three layers of wall surfaces are formed on the front and rear sides, respectively, and are formed of the front wall surface 22, the inner front wall surface 42, and the upper front wall blades 32 from the inside to the front wall surface 22. It consists of the inner rear wall surface 44, the upper rear wall blades 34 in the inward direction of the rear wall surface 24.

To close the upper part, the inner left wall surface 31 and the inner right wall surface 33 which are opposed to each other are closed inward, and then the tape 80 is adhered to the boundary line where the inner left wall surface 31 and the inner right wall surface 33 meet. Seal.

The number of overlapping wall surfaces on the four sides of the folded packing box 100 is composed of one layer on the left and right sides and three layers on the front and rear sides, respectively.

In another embodiment, preferably, the upper front wall blade 32 and the upper rear wall blade 34 facing each other as described above when sealing the bottom surface of the packing box 100 in a conventional general manner as described above. The inner left side wall surface 31 and the inner right side wall surface 33 which are opposite to each other in the state where two layers of wall surfaces are formed at the front and rear sides, respectively, are folded inward, and the tape 80 is attached and sealed.

Thus, the number of the wall surface contacted to the four sides of the folded packing box 100 is composed of one layer on the left and the right side, respectively, the front and rear sides of the wall of two layers.

A method of folding the packaging box 100 will be described.

As an embodiment of folding the packaging box 100, the first step of forming a double wall by bending the inner front and rear wall surfaces 42 and 44 facing each other 180 degrees inwardly, respectively, and to close the lower part. A second step of bending the inner left and right wall surfaces 41 and 43 opposed to each other by 90 degrees in an inward direction, and the upper left and right wall surfaces 31 and 33 facing each other, respectively bending 180 degrees in an inner direction; The third step of forming a double wall and the fourth step of bending the upper front and rear wall blades 32, 34 facing each other in order to finish the upper portion by 90 degrees to the inside.

As another embodiment of folding the packaging box 100, preferably the first step and the second step as described above, the third step is 180 degrees inside the upper front and rear wall wings 32, 34 facing each other By bending in the direction to form a triple wall, the fourth step is made by bending the inner left and right wall surfaces 31, 33 opposed to each other in order to finish the upper portion 90 ° inward direction.

As another embodiment of folding the packing box 100, each of the inner and rear wall surfaces 42 and 44 and the lower left and right wings 41 and 43, preferably, to seal the lower part of the packing box 100. ) The first step of bending 90 ° inwardly, the second step of forming a double wall by bending the upper and rear wall blades 32, 34 inwards 180 °, the inner left and right wall surfaces inward. The third step is to finish the bending by 90 °.

In another embodiment of folding the packaging box, the inner front and rear walls 42 and 44 and the lower left and right wings 41 and 43 inward to seal the lower part of the packaging box 100. The first step of bending 90 °, the second step of bending the inner left and right wall surfaces 180 ° inward direction to form a double wall, the double front wall of the front and rear wall blades 32, 34 by 90 ° bending inward direction. The third step is to form.

Samples of the packaging box will be prepared and the data tested for compressive and burst strength will be described.

Types of corrugated cardboard used in the corrugated cardboard box generally used are divided into two-sided corrugated cardboard, two-sided corrugated cardboard and two-sided corrugated cardboard, and E-corrugated cardboard as shown in [Table 1]. Double sided corrugated cardboard is AB bone double sided corrugated cardboard, and triple corrugated cardboard uses AAA bone triple double sided cardboard.

TABLE 1

[Table 2] is for box height * 2> box width, [Table 3] is for box height * 2 = box width, [Table 4] is for box height * 2 <box width, and [Table 5 shows the strength test values for the box samples.

In the case of a box made of A bone (SW), the compressive strength or tear strength is generally lower than that of a box made of AB bone (DW) due to the characteristics of the material, as shown by the loss of data or data on the previous page. In the case of the newly developed M-1 type box, the box made of A bone is significantly stronger in compressive strength or bursting strength than the existing box made of AB bone. In particular, the compressive strength of boxes made of high strength (SK180 / K180 / K180) in two identical M-1 type boxes tested due to their structural stability is made of relatively low strength ( You can see the same compressive strength of the SK180 / S120 / K180 box.

For reference, SK180, K180, B160, S120 and the like are all the names of the original paper constituting the material of the box, the front English indicates the paper type, the number behind the basis weight (weight of paper per ㎡). Therefore, the higher the digit of the last digit can be seen as having a higher intensity, and the marking of the paper type such as SK, B, S, K is not a mark according to the KS standard.

TABLE 2

TABLE 3

TABLE 4

TABLE 5

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Various modifications and variations can be made within the equivalent scope of the utility model registration claims to be described below.

According to the present invention by using a thin corrugated cardboard to increase the compressive strength and the bursting strength of the packaging box has the following excellent effects.

First, the box price is inexpensive in proportion to the strength of the packaging box.

Second, there is a double inner wall that is blocked from the outside, the product is a refrigerated or dongdong distribution of severe strength reduction due to moisture, or the effect of reducing the strength degradation in a humid environment in summer.

Claims (7)

In the box which is partitioned by a vertical ruled line 70 at the center of the corrugated cardboard and formed on all sides of the left and right wall surfaces 21 and 23 and the front and rear wall surfaces 22 and 24 and bonded by the joint 50. , An inner left wall surface bent 180 ° inward to be connected to one side of the left wall surface 21 to form a bottom surface and to be connected to the other side of the left wall surface 21 to have a double wall ( 31); An inner right wall surface bent 180 ° inward to be connected to one side of the right wall surface 23 to form a bottom surface and connected to the other side of the right wall surface 23 to have a double wall surface ( 33); An inner front wall surface bent 180 ° inward to be connected to one side of the front wall surface 22 to form an upper surface and to be connected to the other side of the front wall surface 22 to have a double wall surface ( 42); An inner rear wall surface 34 connected to one side of the rear wall surface 24 to form an upper surface and an inner rear wall surface bent 180 ° inward to have a double wall surface connected to the other side of the rear wall surface 24 ( 44); a packaging box characterized in that it is formed. The method of claim 1, Packaging box, characterized in that the assembly protrusions (31 ', 33') are formed on both sides of the inner left wall surface (31) and the inner right wall surface (33). The method of claim 1, Assembly grooves 42 'and 44' coupled to the assembly protrusions 31 'and 33' are formed at both sides of the inner front wall 42 and the inner rear wall 44, respectively. Packing box. A first step of forming a double wall by bending the inner front and rear wall surfaces 42 and 44 facing each other 180 degrees inwardly; A second step of bending the inner left and right wall surfaces 41 and 43 facing each other in order to close the lower portion by 90 ° in an inward direction, respectively; A third step of forming a double wall by bending the upper left and right wall surfaces 31 and 33 opposed to each other by 180 ° inwardly; 4. A method for folding a packaging box, comprising: a fourth step of bending the upper front and rear wall blades 32 and 34 facing each other in order to finish the upper part by 90 °. A first step of forming a double wall by bending the inner front and rear wall surfaces 42 and 44 facing each other 180 degrees inwardly; A second step of bending the inner left and right wall surfaces 41 and 43 facing each other in order to close the lower portion by 90 ° in an inward direction, respectively; A third step of forming a triple wall by bending the front and rear wall blades 32 and 34 facing each other in an inward 180 ° direction; 4. A method of folding a packaging box comprising: a fourth step of bending an inner left and right wall surfaces 31 and 33 facing each other to close an upper portion by 90 ° in an inward direction. A first step of bending the inner front and rear wall surfaces 42 and 44 and the lower left and right wings 41 and 43 inward by 90 ° to seal the lower part of the packing box 100; A second step of forming a double wall by bending the upper and rear wall blades 32 and 34 inwardly by 180 °; Method of folding a packaging box consisting of; a third step of closing the upper left and right wall surface in the inward direction by 90 °. A first step of bending the inner front and rear wall surfaces 42 and 44 and the lower left and right wings 41 and 43 inward by 90 ° to seal the lower part of the packing box 100; A second step of forming a double wall by bending the inner left and right wall surfaces in an inward direction by 180 °; A third step of forming a double wall by bending the upper front and rear wall blades (32) (34) in the inward direction 90 °.

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