KR101505565B1 - Packaging box - Google Patents

Abstract

The present invention relates to a packaging box improving impact resistance to transport and package fragile goods from an impact. According to an aspect of the present invention to achieve the above object, the packaging box comprises: a bottom unit having a rectangular shape and a reinforcement structure of a consistent thickness over the entire area; a first side unit comprising a first floor attachment unit and a first extension unit; a third side unit comprising a third floor attachment unit and a third extension unit; a second side unit comprising a second floor attachment unit and a second extension unit; a fourth side unit comprising a fourth floor attachment unit and a fourth extension unit; a first corner joint unit; a second corner joint unit; a third corner joint unit; and a fourth corner joint unit. The first, second, third and fourth side units have a reinforcing core in an outer cover unit, respectively. In the reinforcing core, a plurality of sheets of paper are laminated. According to the constitution, the packaging box comprises a combination of separate components increasing the stiffness and simultaneously has a reinforcing structure, thereby providing the packaging box with improved impact resistance.

Description

Packaging box {Packaging box}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a packing box improved in impact resistance for carrying and packaging articles susceptible to impact.

Generally, the packing box is formed in the form of an empty hollow body, and in such a state that a corrugated board or the like is cut and formed in the shape of a hexahedron, it is preferable to bend the expanded land and fix the adhesion or staple fixing So as to have an upper opening and closing opening.

Such a packaging box not only allows a single or a plurality of products to be received therein to be safely transported and handled, but also serves to prevent internal products from being damaged or broken due to external impacts.

In addition, in order to prevent the internal product from being damaged due to various impacts or loads acting on the packaging box, various types and cushioning materials are put between the internal product and the packaging box, It prevents the product from being damaged by external force or impact.

However, in a typical packaging box, a single-layer corrugated cardboard is developed and cut, and the cardboard box is folded and adhered to fix the cardboard box. Since the packaging box protects the inner product depending on only the physical rigidity of the corrugated board itself, the box easily deforms when a large number of boxes are stacked, excessive load, instantaneous concentrated load or impact load occurs have.

Further, when an external force is applied from the side of the box in the state of being stacked in the vertical direction, the box may be broken due to external force or impact, and the internal cushioning material may be spilled out or the internal product may be damaged or broken.

In addition, even if a reinforcing member is applied to the packaging box itself, there is a limit to increase the rigidity of the box, and there is a disadvantage that the manufacturing step becomes complicated.

Accordingly, in the case of an expensive article or an article susceptible to impact, it is generalized to apply the cushioning package and the durable packaging to the product itself and place it in the packing box regardless of the packing box, and the space between the article and the packing box The present invention attempts to solve the above problems by charging a more effective buffer material.

However, the solution for overcoming the above problem is not only an excessive cushioning material but also a buffering and durable packaging for the product itself, which is a cause of unnecessary increase in cost. There is a problem in that a large packing box is filled and a large amount of buffer material is filled therebetween, thereby increasing the burden of the distribution cost due to an increase in the volume of the packing box.

Korean Patent Application No. 10-2012-0134398

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a packaging box which improves the impact resistance by increasing the rigidity of the packing box itself and having a reinforcing structure.

According to an aspect of the present invention, there is provided a packaging box comprising: a bottom having a rectangular shape and having a reinforcing structure having a constant thickness over an entire area; A first bottom attaching portion formed of paper and attached to a bottom surface of the first side of the bottom portion; a first bottom attaching portion formed of paper and integrally formed with the first bottom attaching portion and having a first extension extended by a predetermined length; Side portions; A third bottom attachment portion formed of paper and attached to a bottom surface of a third side opposed to the first side of the bottom portion; and a third bottom attachment portion bent in " A third side portion comprising a third extension; A second bottom attachment portion formed of paper and attached to a bottom surface of a second side connected to the first side and the third side of the bottom portion; A second side portion extending from the first side portion to the second side portion; A fourth bottom attachment portion formed of paper and attached to a bottom surface of a fourth side opposite to the second side of the bottom portion; and a fourth bottom attachment portion bent in " A fourth side portion comprising a fourth extension; A first corner joint portion bent into an "a" shape and attached to a corner portion formed by an end portion of the first extension portion and an end portion of the second extension portion, respectively; A second corner joint portion bent into an "a" shape and attached to a corner portion formed by an end portion of the second extension portion and an end portion of the third extension portion, respectively; A third corner joint portion bent into an "a" shape and attached to a corner portion formed by an end portion of the third extension portion and an end portion of the fourth extension portion, respectively; A fourth corner joint portion bent into an "a " shape and attached to a corner portion formed by an end portion of the fourth extension portion and an end portion of the first extension portion, respectively; Wherein the first, second, third, and fourth side portions each have a shape in which reinforcing core material is embedded in the outer skin, and the reinforcing core material has a laminated form of a plurality of papers.

An end portion of the second bottom attachment portion and an end portion of the third bottom attachment portion; an end of the third bottom attachment portion and an end of the fourth bottom attachment portion; And the end of the fourth bottom attachment portion and the end of the first bottom attachment portion are adjacent to each other in a state where they are attached to the bottom portion.

A first bottom attachment portion and a second bottom attachment portion; a second bottom attachment portion; a second bottom attachment portion; a third bottom attachment portion; a second bottom attachment portion; The fourth bottom attachment portion and the adjacent end portions of the first bottom attachment portion are coupled to each other by a coupling means.

The bottom portion includes a lower sheet, a reinforcing portion on the lower sheet, and an upper sheet on the reinforcing portion, wherein the reinforcing portion is formed of a plurality of first And a plurality of second reinforcing portions disposed between the reinforcing portion and the first reinforcing portion and having a laminated structure of a plurality of cardboard.

A reinforcing member attached to a bottom surface of the bottom portion so as to cross the bottom portion transversely or longitudinally and having a reinforcing core embedded in the outer skin; .

According to an aspect of the present invention, there is provided a packaging box comprising: a bottom having a rectangular shape and having a reinforcing structure having a constant thickness over an entire area; A first bottom attaching portion formed of paper and attached to a bottom surface of the first side of the bottom portion; a first bottom attaching portion formed of paper and integrally formed with the first bottom attaching portion and having a first extension extended by a predetermined length; Side portions; A third bottom attachment portion formed of paper and attached to a bottom surface of a third side opposed to the first side of the bottom portion; and a third bottom attachment portion bent in " A third side portion comprising a third extension; A second bottom attachment portion formed of paper and attached to a bottom surface of a second side connected to the first side and the third side of the bottom portion; A second side portion extending from the first side portion to the second side portion; A fourth bottom attachment portion formed of paper and attached to a bottom surface of a fourth side opposite to the second side of the bottom portion; and a fourth bottom attachment portion bent in " A fourth side portion comprising a fourth extension; Wherein each of the first, second, third, and fourth side portions has a shape in which reinforcing core material is embedded in the outer skin, the reinforcing core material has a laminated form of a plurality of sheets of paper, Wherein the second side surface portion is integrally formed with a connecting portion having a thickness smaller than that of the first side surface portion and the second side surface portion between the first side surface portion and the second side surface portion, The third side surface portion and the fourth side surface portion are integrally formed and a thinner thickness than the third side surface portion and the fourth side surface portion is formed between the third side surface portion and the fourth side surface portion, The third side surface portion and the fourth side surface portion of the connecting portion may be bent into a letter "A ", and the first corner joint portion is integrally connected to the end of the second extending portion, And the corner portions between the third extension portions are connected to each other by being bent to the "A" shape and attached to the end portion of the third extension portion, and the second corner joint portion is integrally connected to the end portion of the fourth extension portion And the corner portion between the fourth extending portion and the first extending portion is connected to the second corner connecting portion by being bent in the "a " shape and attached to the end of the first extending portion.

The bottom portion includes a lower sheet, a reinforcing portion on the lower sheet, and an upper sheet on the reinforcing portion, wherein the reinforcing portion is formed of a plurality of first And a plurality of second reinforcing portions disposed between the reinforcing portion and the first reinforcing portion and having a laminated structure of a plurality of cardboard.

According to the present invention, it is possible to provide a packing box in which the packing box is made up of a combination of separate components with increased rigidity, and at the same time has a reinforcing structure, thereby improving the impact resistance.

1 is an exploded view of a packaging box according to an embodiment of the present invention.
Fig. 2 is an exploded view of the packaging box of Fig. 1 viewed from the opposite direction.
Fig. 3 is a perspective view of the packing box of Fig. 1 in an assembled state.
Figure 4 is a perspective view of the packing box of Figure 1 in an assembled state viewed from the opposite direction.
Fig. 5 is an enlarged view of a portion A in Fig. 1. Fig.
Fig. 6 is a perspective view showing the configuration of the bottom according to the first embodiment in the packing box of Fig. 1;
7 is a cross-sectional view showing the configuration of the bottom according to the first embodiment in the packing box of Fig. 1;
8 is a cross-sectional view showing the configuration of the bottom according to the second embodiment in the packing box of Fig. 1;
9 is a perspective view of a set of packing boxes according to an embodiment of the present invention.
10 is an exploded view of a packaging box according to another embodiment of the present invention.
Fig. 11 is an exploded view of the packing box of Fig. 10 viewed from the opposite direction.
12A and 12B are views showing a configuration in which the first side portion and the second side portion are connected to each other in the packing box of Fig.
Figure 13 is a perspective view of the packaging box of Figure 10 in an assembled state.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

1st Example

1 is an exploded view of a packaging box according to an embodiment of the present invention. Fig. 2 is an exploded view of the packaging box of Fig. 1 viewed from the opposite direction. Fig. 3 is a perspective view of the packing box of Fig. 1 in an assembled state. Figure 4 is a perspective view of the packing box of Figure 1 in an assembled state viewed from the opposite direction. Fig. 5 is an enlarged view of a portion A in Fig. 1. Fig. Fig. 6 is a perspective view showing the configuration of the bottom according to the first embodiment in the packing box of Fig. 1; 7 is a cross-sectional view showing the configuration of the bottom according to the first embodiment in the packing box of Fig. 1; 8 is a cross-sectional view showing the configuration of the bottom according to the second embodiment in the packing box of Fig. 1; 9 is a perspective view of a set of packing boxes according to an embodiment of the present invention.

The packing box 100 according to the embodiment of the present invention has a structure in which the impact resistance is improved in order to carry and package an article susceptible to impact, an expensive article, and the like. To this end, the packing box 100 of the present invention is configured such that the outer wall of the box is folded on the basis of one developed view of the conventional packing box, thereby forming a member for forming the bottom of the box and a member for forming the outer wall separately And the rigidity is increased by assembling them to each other, and further a reinforcing member is added.

The packaging box 100 includes a bottom 110, a first side portion 120, a second side portion 130, a third side portion 140, a fourth side portion 150, first to fourth corner joints 161 , 162, 163, 164).

The bottom portion 110 is a portion for supporting the load of the article received in the packing box 100, and may be formed of paper. The bottom portion 110 has a generally rectangular shape and has a reinforcing structure of constant thickness over the entire area to support the load of the article.

The reinforcing structure of the bottom portion 110 can be implemented in various forms. 6 and 7, the bottom portion 110 includes a lower sheet 111, a reinforcing portion 112 attached to the lower sheet 111 and having a honeycomb structure, And an upper sheet 113 attached to the reinforcing portion 112. The reinforcing portion 112 may be formed in various forms besides the honeycomb structure. By having the bottom part 110 having such a structure, the load of the article stored in the packing box 100 can be stably supported and protected from external impacts.

8, the bottom portion 110 'includes a lower sheet 111', reinforcing portions 112 'and 114' attached to the lower sheet 111, reinforcing portions 112 ' And an upper sheet 113 'attached on the upper sheet 113'.

The reinforcing portions 112 'and 114' are formed of a plurality of first reinforcing portions 112 'selected from plastic, wood, and iron so as to have a sufficient rigidity and spaced apart from each other in the transverse (or longitudinal) direction, And a plurality of second reinforcing portions 114 'disposed between the reinforcing portions 112' and having a laminated structure of a plurality of cardboards. The first reinforcing portion 112 'may have a rectangular or hollow rectangular or quadrangular prism shape.

In the structures of the reinforcing portions 112 'and 114', for example, the first reinforcing portion 112 'having rigidity is disposed at a distance from both ends of the lower sheet 111' And the second reinforcing portion 114 'is disposed between the first and second portions 112'. Since the reinforcing portions 112 'and 114' are disposed with the first reinforcing portion 112 'having sufficient rigidity separated from the lower sheet 111', when the load of the articles accommodated in the packing box 100 is heavy It is possible to prevent the center of the edge portion 110 'from being bent downward due to its weight.

The first side part 120 may be attached to the first side of the bottom part 110 to form the first side of the packing box 100 and may be formed of paper. The first side part 120 includes a first bottom attachment part 121 attached to the bottom surface of the first side of the bottom part 110 and a second bottom attachment part 121 bent in a & And a first extending portion 122 extending upward by a length. The first bottom attachment portion 121 may be attached to the underside of the first side of the bottom portion 110, for example, by an adhesive.

The first bottom attachment portion 121 is a portion for attaching the first side portion 120 to the bottom portion 110 and the first extension portion 122 forms an outer wall of the box so that the article can be received in the box do.

In the conventional packaging box, when folding down one developed view of corrugated cardboard to form the outer wall of the box, it becomes difficult to fold the corrugated cardboard when the thickness thereof becomes thick. Therefore, there is a limit to increase the thickness of the corrugated cardboard used as the material of the box. Therefore, there is a limit to increase the rigidity of the packaging box. In some cases, the reinforcing material is added to the folded portion of the packaging box, but in this case, the manufacturing process is complicated, and there is a limit in increasing the rigidity of the packaging box.

In order to solve this problem, as shown in FIG. 5, the first side part 120 of the present invention may have a shape in which the reinforcing core 120b is embedded in the outer skin 120a. The reinforcing core material 120b has a laminated form of a plurality of papers.

When paper of the same size is continuously laminated, a slope (s) of a shape in which the length of the end portion decreases from the inside to the outside due to the difference in dimension between the inside and the outside at the folding point can be formed. Since the outer skin 120a surrounds the outside of the reinforcing core 120b, the inclined surface s is not exposed from the outside. With this configuration, it is possible to increase and decrease rigidity by adjusting the amount of paper stacked in the reinforcing core 120b according to the desired degree of rigidity.

The first side portion 120 of the present invention can be manufactured to have sufficient rigidity by adjusting the thickness of the reinforcing core member 120. The first side portion 120 includes a first bottom attachment portion 121 and a first extension portion 122). ≪ / RTI >

However, if there are two or more bending points in the first side portion 120 of this type, for example, the size of the paper laminated to the outside may be increased considering the difference in dimension between the inside and the outside of the folding point, So that fabrication becomes complicated. Therefore, when the cardboard having the reinforcing core 120b embedded in the outer skin 120a and having increased stiffness is used, it is preferable to limit the bending point to one point. Because of the rigidity of the cardboard, It can not be used in a form that is bent several times.

The third side portion 140 may be attached to a third side opposite to the first side of the bottom portion 110 to form a third side of the packing box 100, and may be formed of paper. The third side part 140 includes a third bottom attachment part 141 attached to the bottom surface of the third side of the bottom part 110 and a third bottom attachment part 141 bent in a & And a third extending portion 142 extending as much as the length. The third bottom attachment portion 141 may be attached to the bottom surface of the third side of the bottom portion 110, for example, by an adhesive.

The third bottom attachment portion 141 is a portion for attaching the third side portion 140 to the bottom portion 110 and the third extension portion 142 forms an outer wall of the box so that the article can be received in the box do.

The second side part 130 is attached to the second side connected to the first side and the third side of the bottom part 110 to form the second side of the packing box 100 and may be formed of paper. The second side surface portion 130 includes a second bottom surface portion 131 attached to the bottom surface of the second side of the bottom portion 110 and a second bottom surface portion 131 bent in a & And a second extending portion 132 extending as much as the length. The second bottom attachment portion 131 may be attached to the underside of the second side of the bottom portion 110, for example, by an adhesive.

The second bottom attachment portion 131 is a portion for attaching the second side portion 130 to the bottom portion 110 and the second extension portion 132 forms an outer wall of the box so that the article can be received in the box do.

The fourth side part 150 may be attached to the second side connected to the first side and the third side of the bottom part 110 to form the fourth side of the packing box 100 and may be formed of paper. The fourth side part 150 includes a fourth bottom attachment part 151 attached to the bottom surface of the fourth side of the bottom part 110 and a second bottom attachment part 151 bent in a & And a fourth extending portion 152 extending by a length. The fourth bottom attachment portion 151 may be attached to the bottom surface of the fourth side of the bottom portion 110 by, for example, an adhesive.

The fourth bottom attachment portion 151 is a portion for attaching the fourth side portion 150 to the bottom portion 110 and the fourth extension portion 152 forms an outer wall of the box so that the article can be received in the box do.

The second side surface portion 130, the third side surface portion 140, and the fourth side surface portion 150 have the same shape as the first side surface portion 120. Accordingly, the second to fourth side portions 130, 140, and 150 can have a sufficiently increased rigidity.

The first corner joint portion 161 is provided to connect the first extension portion 122 of the first side portion 120 and the second extension portion 132 of the second side portion 130 and to increase the rigidity of the corner portion. For example, the first corner joint 161 may be bent in a "? &Quot; shape so that the end of the first extension portion 122 of the first side portion 120 and the end of the second extension portion 132 of the second side portion 130 Are respectively attached to the corner portions formed by the end portions. The first corner joint 161 may be adhered using an adhesive and may be fixed by further staples on the first corner joint 161. [

The second corner joint 162 is provided to connect the second extension portion 132 of the second side portion 130 and the third extension portion 142 of the third side portion 140 and to increase the rigidity of the corner portion. The second corner joint 162 is bent to be formed by the end of the second extension portion 132 of the second side portion 130 and the end of the third extension portion 142 of the third side portion 140 Respectively. The second corner joint 162 may be adhered using an adhesive and may be further secured using staples on the second corner joint 162. [

The third corner joint 163 is provided to connect the third extended portion 142 of the third side portion 140 and the fourth extended portion 152 of the fourth side portion 150 and to increase the rigidity of the corner portion. The third corner joint portion 163 is bent to be formed by the end of the third extending portion 142 of the third side portion 140 and the end of the fourth extending portion 152 of the fourth side portion 150 Respectively. The third corner joint 163 may be attached using an adhesive, and may be further secured using a staple onto the third corner joint 163. [

The fourth corner joint 164 is provided to connect the fourth extension 152 of the fourth side part 150 and the first extension part 122 of the first side part 120 and to increase the rigidity of the corner part. The fourth corner joint portion 164 is bent to be formed by the end portion of the fourth extension portion 152 of the fourth side portion 150 and the end portion of the first extension portion 122 of the first side portion 120 Respectively. The fourth corner joint 164 may be adhered using an adhesive and may be further secured using a staple onto the fourth corner joint 164.

The first to fourth corner joints 161, 162, 163, and 164 may be made of paper. The first to fourth corner joints 161, 162, 163, and 164 may have a shape in which the reinforcing core is embedded in the outer skin, such as the first to fourth side portions 120, 130, 140, and 150.

1, 2, and 4, the ends of the first bottom attachment portion 121 and the second bottom attachment portion 131 are attached to the bottom portion 110 and are adjacent to each other. The ends of the first bottom attachment portion 121 and the second bottom attachment portion 131 are formed to be inclined in order to prevent the end portions of the first and second bottom attachment portions 121 and 121 from overlapping with each other. This allows the end of the first bottom attachment portion 121 and the end of the second bottom attachment portion 131 to be attached to the bottom portion 110 as wide as possible to increase the rigidity of the packaging box 100. [

The ends of the first bottom attachment portion 121 and the second bottom attachment portion 131 can be joined to each other by the coupling means 181 while being attached to the bottom portion 110. [ For example, the ends of the first floor attachment portion 121 and the second floor attachment portion 131 can be coupled and fixed to each other by staples. This makes the packing box 100 more rigid and increases rigidity.

Similarly, the end portions of the second bottom attachment portion 131, the third bottom attachment portion 141, the end portions of the third bottom attachment portion 141 and the fourth bottom attachment portion 151, The end of the first bottom attachment portion 121 and the end of the first bottom attachment portion 121 are adjacent to each other while being attached to the bottom portion 110. [ To this end, the ends of each of the second to fourth bottom attachment portions 131, 141, and 151 are formed to be inclined in order to prevent the bottom portions 110 from being overlapped with each other.

The end of the third bottom attachment portion 141, the end of the third bottom attachment portion 141 and the end of the fourth bottom attachment portion 151 and the end of the fourth bottom attachment portion 151 and the ends of the first bottom attachment portion 121 can be joined and fixed to each other by the coupling means 181, for example, staples, while being attached to the bottom portion 110. This makes the packing box 100 more rigid and increases rigidity.

Referring to FIG. 4, a reinforcement member 170 may be further attached to increase the rigidity of the bottom surface of the bottom portion 110. The reinforcing member 170 may have a shape in which a reinforcing core is embedded in the outer skin, like the first side portion 120. The reinforcement member 170 may be attached across the bottom portion 110 transversely or longitudinally.

According to the packing box 100 of the present invention as described above, the first to fourth side parts 120, 130, 140, and 150 are attached to the bottom part 110 having a reinforcing structure with an adhesive or the like And the first to fourth side parts 120, 130, 140, and 150 have a structure in which rigidity is increased by the reinforcing core. In addition, the bending points of the first to fourth side portions 120, 130, 140, and 150 having increased rigidity by the reinforcing core are limited to one, so that the bending points are easily bent in the form of bending despite the difference in the inside and outside of the bending point. .

The packing box 100 of the present invention having the first to fourth side portions 120, 130, 140, and 150 attached to the bottom portion 110 can sufficiently increase the rigidity of the box, Can be facilitated.

The first to fourth corner joints 161, 162, 163, and 164 are used to connect the corner portions of the first to fourth side portions 120, 130, 140, and 150 and to complement the rigidity. As a result, the rigidity of the members forming the packaging box 100 can be increased sufficiently as desired, and the article can be safely protected from external impacts.

Referring to Fig. 9, when the packing box 100 of the present invention is actually used, it can be used as a set with the packing box 200 for covering which has the same shape as the packing box 100 and is slightly larger in size. As described above, the articles contained in the packing boxes 100, 200 having sufficient rigidity can be perfectly protected from external impacts.

Second Example

10 is an exploded view of a packaging box according to another embodiment of the present invention. Fig. 11 is an exploded view of the packing box of Fig. 10 viewed from the opposite direction. 12A and 12B are views showing a configuration in which the first side portion and the second side portion are connected to each other in the packing box of Fig. Figure 13 is a perspective view of the packaging box of Figure 10 in an assembled state.

The packing box 300 of this embodiment includes a bottom 310, a first side 320, a second side 330, a third side 340, a fourth side 350, a reinforcing member 370, .

The bottom part 310, the first side part 320, the second side part 330, the third side part 340, the fourth side part 350, and the reinforcing member 370 are formed in the bottom part The first side face 120, the second side face 130, the third side face 140, the fourth side face 150, and the reinforcing member 170. The first side face 120, the second side face 130, The bottom portion 310 may have the same configuration as the bottom portion 110 'shown in the first embodiment.

The first side portion 320 is formed of paper and includes a first bottom attachment portion 321 attached to a bottom surface of the first side of the bottom portion 310 and a second bottom attachment portion 321 integrally formed with the first bottom attachment portion 321 And a first extending portion 322 bent to "a " and extending upward by a predetermined length.

The third side surface portion 340 is formed of paper and includes a third bottom attachment portion 341 attached to the bottom surface of the third side of the bottom portion 310 and a third bottom attachment portion 341 integrally formed with the third bottom attachment portion 341, And a third extension part 342 which is bent by a predetermined length and is bent.

The second side surface portion 330 is formed of paper and includes a second bottom attachment portion 331 attached to the bottom surface of the second side of the bottom portion 310 and a second bottom attachment portion 331 integrally formed with the second bottom attachment portion 331, And a second extended portion 332 bent by a predetermined length.

The fourth side surface portion 150 is formed of paper and includes a fourth bottom attachment portion 351 attached to the bottom surface of the fourth side of the bottom portion 310 and a fourth bottom attachment portion 351 integrally formed with the fourth bottom attachment portion 351, And a fourth extension 352 that is bent by itself and extends by a predetermined length.

Each of the first to fourth side parts 320, 330, 340, and 350 has a shape in which a reinforcing core is embedded in the outer skin, and the reinforcing core has a laminated structure of a plurality of papers.

A first corner joint portion 334 is integrally connected to the end of the second extension portion 332 through a connection portion 333. The connecting portion 333 is thinner than the second extending portion 332 and the first corner connecting portion 334 so that the second extending portion 332 and the first corner connecting portion 334 in the connecting portion 333 are " It can be bent into a letter.

The corner portion between the second extension portion 332 and the third extension portion 342 can be connected to each other by being bent in the letter "A" and attached to the end of the third extension portion 342. With the first corner joint 334 attached to the end of the third extension 342, a fastener such as a staple can be further fastened onto the first corner joint 334.

A second corner joint 354 is integrally connected to an end portion of the fourth extension 352 through a connection portion 353. The connecting portion 353 is thinner than the fourth extending portion 352 and the second corner connecting portion 354 so that the fourth extending portion 352 and the second corner connecting portion 354 in the connecting portion 353 are " It can be bent into a letter.

The corner portion between the fourth extension portion 352 and the first extension portion 322 can be connected to each other by the second corner joint portion 354 being bent into the letter "A" and being attached to the end portion of the first extension portion 322. With the second corner joint 354 attached to the end of the first extension 322, a further fastener such as a stiffener can be fastened onto the second corner joint 354.

The first to fourth corner joints 161, 162, 163, and 164 of the first embodiment are formed at the corners of the first to fourth side portions 320, 330, 340, and 350 while the packing box 300 is assembled. A corner reinforcement member of the same shape as that of FIG.

The first side portion 320 and the second side portion 330 are integrally formed and the first side portion 320 and the second side portion 330 are formed between the first side portion 320 and the second side portion 330 The first side portion 320 and the second side portion 330 may be bent in a "? &Quot; shape in the connecting portion. A connection portion 325 is provided between the first extension portion 322 of the first side portion 320 and the second extension portion 332 of the second side portion 330 to connect the first extension portion 322 of the first side portion 320 and the second extension portion 332 of the second side portion 330, The side portion 320 and the second side portion 330 may be bent into "a"

The connecting portion 325 having a thickness smaller than that of the first side portion 320 and the second side portion 330 can be easily bent. Since the first side portion 320 and the second side portion 330 are sufficiently thick by the reinforcing core member, if the connecting portion 325 has the same thickness as the first side portion 320 and the second side portion 330, It is difficult. The width of the connection portion 325 may be, for example, about 5 to 10 mm.

The third side portion 340 and the fourth side portion 350 are integrally formed and the third side portion 340 and the fourth side portion 350 are formed between the third side portion 340 and the fourth side portion 350 The third side portion 340 and the fourth side portion 350 at the connection portion can be bent into "? &Quot;. More specifically, a connection portion is provided between the third extended portion 342 of the third side portion 340 and the fourth extended portion 352 of the fourth side portion 350, The four side portions 350 can be bent into the letter "a ".

In this embodiment, the connection portion 325 is provided between the first side portion 320 and the second side portion 330, and the first side portion 320 and the second side portion 330 may be integrally formed. The third side surface portion 340 and the fourth side surface portion 350 may be integrally formed with each other between the third side surface portion 340 and the fourth side surface portion 350.

The first side portion 320, the second side surface portion 330, the third side surface portion 340 and the fourth side surface portion 350 are not formed of separate members but are formed of two members by connecting portions, To the bottom part 310 can be more easily performed.

Alternatively, the first side portion 320, the second side portion 330, the third side portion 340, and the fourth side portion 350 may be integrally formed, and the first side portion 320, the second side portion 330, Between the second side surface portion 330 and the third side surface portion 340 and between the third side surface portion 340 and the fourth side surface portion 350 and between the fourth side surface portion 350 and the first side surface portion 320, And may be bent to the letter "a " at the connecting portion.

This is because the first side portion 320, the second side portion 330, the third side portion 340 and the fourth side portion 350 are not made of separate members but are formed of one member by a connecting portion, So that the process of attaching them to the bottom part 310 can be performed more easily.

The corner portion between the second extension portion 332 and the third extension portion 342 has the first corner joint portion 334 and the second corner portion 332. The packaging box 300 of this embodiment has all the advantages of the packing box 100 of the first embodiment, And the corner portion between the fourth extension portion 352 and the first extension portion 322 is connected by the second corner joint portion 354. As shown in Fig. Therefore, in this embodiment, the corner portions of the packing box 300 can be connected by a simple method without adding the first to fourth corner joint portions 161, 162, 163, and 164 as in the first embodiment, There is an advantage to settle.

Although the packing boxes 100, 200, and 300 having a rectangular shape are described above, the packing boxes may be formed in a polygonal shape such as a triangle or a pentagon.

In this case, the packing box has a bottom portion having a reinforcing structure of a constant thickness over the entire area, a bottom attaching portion attached to the bottom of each side of the bottom portion, And a plurality of corner joints attached to adjacent ends of the respective side portions. The plurality of side portions and the plurality of corner joint portions each have a reinforcing core embedded in the outer skin, and the reinforcing core may have a laminated form of a plurality of papers.

Here, the bottom portion may consist of a bottom sheet, a reinforcement attached to the bottom sheet and having a honeycomb structure, and an upper sheet attached to the reinforcement. Alternatively, the bottom portion may include a bottom sheet, a reinforcement on the bottom sheet, and an upper sheet on the reinforcement. Wherein the reinforcing portion includes a plurality of first reinforcing portions selected from among plastic, wood, and iron and disposed to be spaced apart in the transverse direction, and a plurality of second reinforcing portions disposed between the first reinforcing portions and having a laminated structure of a plurality of cardboard Section.

A connecting portion having a thickness thinner than the side portions is provided between the respective side portions so that the respective side portions can be integrally connected and each side portion can be bent at the connecting portion.

Such a packaging box may be made in a circular shape, an elliptical shape, or the like. In this case, the packaging box has a bottom portion having a reinforcing structure of a constant thickness over the entire area, a bottom attaching portion attached to the bottom of the bottom portion, and a bottom attaching portion which is bent into " And may include side portions having extending extensions. The side portions may each have a shape in which reinforcing core material is embedded in the outer skin.

Here, the bottom portion may comprise a bottom sheet, a reinforcing portion attached to the bottom sheet and having a honeycomb structure, and an upper sheet attached to the reinforcing portion.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

100: packing box
110:
111: Lower sheet
112:
113: upper sheet
120:
130: second side surface
140:
150: fourth side face
161: first corner joint
162: second corner joint
163: third corner joint
164: fourth corner joint
170: reinforcing member
181: coupling means

Claims (7)

In a packing box,
A bottom portion having a rectangular shape and having a reinforcing structure of a constant thickness over the entire area;
A first bottom attaching portion formed of paper and attached to a bottom surface of the first side of the bottom portion; a first bottom attaching portion formed of paper and integrally formed with the first bottom attaching portion and having a first extension extended by a predetermined length; Side portions;
A third bottom attachment portion formed of paper and attached to a bottom surface of a third side opposed to the first side of the bottom portion; and a third bottom attachment portion bent in " A third side portion comprising a third extension;
A second bottom attachment portion formed of paper and attached to a bottom surface of a second side connected to the first side and the third side of the bottom portion; A second side portion extending from the first side portion to the second side portion;
A fourth bottom attachment portion formed of paper and attached to a bottom surface of a fourth side opposite to the second side of the bottom portion; and a fourth bottom attachment portion bent in " A fourth side portion comprising a fourth extension;
A first corner joint portion bent into an "a" shape and attached to a corner portion formed by an end portion of the first extension portion and an end portion of the second extension portion, respectively;
A second corner joint portion bent into an "a" shape and attached to a corner portion formed by an end portion of the second extension portion and an end portion of the third extension portion, respectively;
A third corner joint portion bent into an "a" shape and attached to a corner portion formed by an end portion of the third extension portion and an end portion of the fourth extension portion, respectively;
A fourth corner joint portion bent into an "a " shape and attached to a corner portion formed by an end portion of the fourth extension portion and an end portion of the first extension portion, respectively;
Lt; / RTI >
Wherein each of the first, second, third, and fourth side portions has a shape in which a reinforcing core is embedded in the outer skin, the reinforcing core has a plurality of sheets of paper laminated,
An end of the third bottom attachment portion and an end of the fourth bottom attachment portion; an end portion of the second bottom attachment portion; (4) The end of the bottom attachment portion and the end of the first bottom attachment portion are adjacent to each other in a state of being attached to the bottom portion,
A first bottom attachment portion, a second bottom attachment portion, a third bottom attachment portion, a third bottom attachment portion, a third bottom attachment portion, a third bottom attachment portion, 4 bottom attachment portion and the adjacent end portion of the first bottom attachment portion are coupled to each other by a coupling means,
Wherein the bottom portion includes a lower sheet, a reinforcing portion on the lower sheet, and an upper sheet on the reinforcing portion,
The reinforcing portion may include a plurality of first reinforcing portions selected from plastic, wood, and iron and disposed spaced apart from each other in the transverse direction and having a solid or hollow rectangular parallelepiped shape or a square pillar shape, And a plurality of second reinforcing portions disposed over the first reinforcing portion and having a form in which a plurality of cardboard sheets are laminated. delete delete delete The method according to claim 1,
A reinforcing member attached to a bottom surface of the bottom portion so as to cross the bottom portion transversely or longitudinally and having a reinforcing core embedded in the outer skin;
Further comprising a packaging box. In a packing box,
A bottom portion having a rectangular shape and having a reinforcing structure of a constant thickness over the entire area;
A first bottom attaching portion formed of paper and attached to a bottom surface of the first side of the bottom portion; a first bottom attaching portion formed of paper and integrally formed with the first bottom attaching portion and having a first extension extended by a predetermined length; Side portions;
A third bottom attachment portion formed of paper and attached to a bottom surface of a third side opposed to the first side of the bottom portion; and a third bottom attachment portion bent in " A third side portion comprising a third extension;
A second bottom attachment portion formed of paper and attached to a bottom surface of a second side connected to the first side and the third side of the bottom portion; A second side portion extending from the first side portion to the second side portion;
A fourth bottom attachment portion formed of paper and attached to a bottom surface of a fourth side opposite to the second side of the bottom portion; and a fourth bottom attachment portion bent in " A fourth side portion comprising a fourth extension;
Lt; / RTI >
Wherein each of the first, second, third, and fourth side portions has a shape in which a reinforcing core is embedded in the outer skin, the reinforcing core has a plurality of sheets of paper laminated,
Wherein the first side surface portion and the second side surface portion are integrally formed and a connection portion having a thickness smaller than that of the first side surface portion and the second side surface portion is provided between the first side surface portion and the second side surface portion, The side portion and the second side portion may be bent into "a "
Wherein the third side surface portion and the fourth side surface portion are integrally formed and a connection portion having a thickness smaller than that of the third side surface portion and the fourth side surface portion is provided between the third side surface portion and the fourth side surface portion, The side portion and the fourth side portion may be bent into "a "
Wherein a corner portion between the second extending portion and the third extending portion is bent in a "? &Quot; shape so that the end portion of the third extending portion is connected to the end of the second extending portion, And are connected to each other,
Wherein a corner portion between the fourth extending portion and the first extending portion is bent in a "? &Quot; shape so that an end portion of the first extending portion is connected to the end of the fourth extending portion, And are connected to each other,
An end of the third bottom attachment portion and an end of the fourth bottom attachment portion; an end portion of the second bottom attachment portion; (4) The end of the bottom attachment portion and the end of the first bottom attachment portion are adjacent to each other in a state of being attached to the bottom portion,
A first bottom attachment portion, a second bottom attachment portion, a third bottom attachment portion, a third bottom attachment portion, a third bottom attachment portion, a third bottom attachment portion, 4 bottom attachment portion and the adjacent end portion of the first bottom attachment portion are coupled to each other by a coupling means,
Wherein the bottom portion includes a lower sheet, a reinforcing portion on the lower sheet, and an upper sheet on the reinforcing portion,
The reinforcing portion may include a plurality of first reinforcing portions selected from plastic, wood, and iron and disposed spaced apart from each other in the transverse direction and having a solid or hollow rectangular parallelepiped shape or a square pillar shape, And a plurality of second reinforcing portions disposed over the first reinforcing portion and having a form in which a plurality of cardboard sheets are laminated. delete

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