WO2020242174A1

WO2020242174A1 - Bottom structure of packaging box and packaging box comprising same

Info

Publication number: WO2020242174A1
Application number: PCT/KR2020/006788
Authority: WO
Inventors: 황규찬
Original assignee: 황규찬
Priority date: 2019-05-27
Filing date: 2020-05-26
Publication date: 2020-12-03
Also published as: KR102184292B1; KR20190067744A

Abstract

The present invention relates to a bottom structure of a packaging box, comprising: a front part and a rear part constituting side walls of the front and the rear of a packaging box when folded; a right side part and a left side part constituting side walls of the right side and the left side of the packaging box when folded; a bottom fitting part which extends from either side of the front part or the rear part, constitutes a portion of the bottom surface of the packaging box when folded, and includes a rectangular body surface and a fitting slot formed by penetrating the body surface in a horizontal direction on one side of the body surface; and a bottom insertion part which extends from the other side of the front part or the rear part, constitutes a portion of the bottom surface of the packaging box when folded, and includes a trapezoid-shaped body surface of which the width decreases from a folded part, and an insertion protrusion extending in a rectangular shape from the end of the body surface and inserted into the fitting slot. According to the present invention, the fitting slot of the bottom fitting part constituting a portion of the bottom surface and the insertion protrusion of the bottom insertion part facing the bottom fitting part are fixed by fitting and coupling to each other, and thus, the bonding strength of the bottom surface is maintained while there is no need for separate adhesive tape to fix the bottom surface, and a packaging box can be manufactured with a simple process and low cost.

Description

The bottom structure of the packaging box and the packaging box containing the same

The present invention relates to a bottom structure of a packaging box and a packaging box including the same, and more particularly, by combining the bottom members constituting the bottom surface of the packaging box by fitting and coupling, the work process is simplified and adhesive tapes are used. It relates to a floor structure of a packaging box capable of safely transporting stored goods by minimizing the use of subsidiary materials and strengthening the bonding force between floor members, and a packaging box including the same.

With the activation of online shopping malls these days, the demand for packaging boxes made of corrugated cardboard is rapidly increasing as the delivery of goods using courier is activated. Existing packaging boxes mainly carried industrial products such as home appliances, but recently, as parcel delivery has become common, almost most of the items used in life are transported.

On the other hand, in general, a packaging box is manufactured using cardboard or corrugated cardboard having a thick paper material.In the case of such a packaging box assembly structure, it is cut in several branches to the top and bottom sides of the paper plate forming the body such as corrugated board. A plurality of connecting pieces to be connected are formed, and each connecting piece is assembled to each other to form a bottom surface and a cover surface to form a box shape.

1 is a perspective view showing the bottom structure of such a general packaging box. In the case of a packaging box according to the prior art as shown in FIG. 1, after folding a pair of transverse floor members 1 and another pair of longitudinal floor members 2 constituting the bottom surface to face each other The gap between the horizontal floor members 1 constituting the outer bottom surface of the packaging box is adhered with a wide adhesive tape to prevent the stored article from falling out of the packaging box.

However, in the case of such a conventional technology, since the outside of the packaging box must be sealed with a wide adhesive tape to fix the bottom surface of the packaging box, the manufacturing process of the packaging box is complicated and the manufacturing cost increases, as well as environmental issues (closed box Of recycling, etc.).

In addition, in order to fix the bottom surface of the packaging box without using an adhesive tape, a pair of horizontal bottom members (1) and a pair of vertical bottom members (2) as described above are crossed to each other in a cross shape. There is a method of fixing the bottom surface by folding.

However, in the case of such a prior art, the coupling force between the floor members constituting the bottom surface is weak, so that the contents often fall out of the packaging box.

The present invention is to solve the problems of the prior art as described above, the object of the present invention is a packaging box that can manufacture a packaging box in a simple and inexpensive manufacturing process by fixing the bottom surface without using a separate adhesive tape It is to provide a floor structure.

Another object of the present invention is to reinforce the bonding force of the bottom surface by combining the bottom members constituting the bottom surface of the packaging box by fitting and coupling, so that the stored goods can be safely transported without falling out of the packaging box. It is to provide the bottom structure of the packing box.

Another object of the present invention is to provide an environmentally friendly bottom structure of a packaging box because no separate waste made of synthetic resin such as adhesive tape is generated when the packaging box is disassembled.

Another object of the present invention is to provide a packaging box including the floor structure as described above.

One aspect of the present invention for achieving the above object is a front portion and a rear portion constituting the side walls of the front and rear of the packaging box when folded; A right side and a left side constituting sidewalls of the right side and the left side of the packaging box when folded; A fitting slot that extends from either side of the front or rear side and forms part of the bottom surface of the packaging box when folded, and is formed by penetrating the body surface in a horizontal direction on one side of the square-shaped body surface and the body surface Floor fitting including a; And a trapezoidal body surface that extends from the other side of the front or rear surface and forms a part of the bottom surface of the packaging box when folded, and the width decreases from the fold and extends in a square shape from the end of the body surface to be fitted. Includes; a bottom insertion portion including an insertion protrusion inserted into the slot.

At this time, the right side portion is provided with a right bottom portion extending from the right side portion and constituting a part of the right bottom surface when folded, and the left side portion, extending from the left side portion and constituting a part of the left bottom surface when folded. A left bottom portion may be provided.

In addition, the bottom surface of the packaging box is the bottom fitting portion, the side bottom portion and the bottom insertion portion on both sides so as to be located in the order of the bottom fitting portion, the side bottom portion and the bottom insertion portion on both sides from the inner upper side of the bottom surface It can be configured to be folded sequentially.

In addition, the fitting slot of the bottom fitting portion may be formed in a longitudinal direction parallel to the horizontal direction of the bottom surface.

In addition, the fitting slot of the bottom fitting portion may be formed to be spaced apart from a center line in the horizontal direction of the bottom surface by a predetermined distance.

In addition, the insertion protrusion of the bottom insertion portion may have a horizontal length corresponding to a horizontal length of the fitting slot.

In addition, at one or more of the end portions of both sides of the insertion protrusion, a locking wing for preventing the insertion protrusion from being removed from the fitting slot may be extended.

In addition, the locking wing may be folded inward at both ends of the insertion protrusion and inserted into the fitting slot, and then spread outwardly at both ends of the insertion protrusion and disposed on the upper surface of the bottom fitting portion.

Further, the lengthwise length of the locking blade may be formed to be equal to or larger than the lengthwise length of the insertion protrusion.

In addition, the lengthwise length of the locking wing may be greater than the lengthwise length of the fitting slot.

In addition, the horizontal length of the locking blade may be formed larger than the vertical length of the locking blade.

In addition, in the locking wing, a portion of the folding line of the locking wing may be in contact with both incision lines of the fitting slot in a vertical direction, and the remaining portion of the folding line may extend to an upper surface of the bottom fitting portion through the incision line.

Another aspect of the present invention includes a floor structure as described above,

A cover insertion portion configured in the same shape as the bottom insertion portion is formed so as to form a part of the cover surface of the packaging box when folded, on the opposite side of the bottom fitting portion in the front portion or the rear portion where the bottom fitting portion is extended, and , A cover fitting portion configured in the same shape as the bottom fitting portion is formed to form a part of the cover surface of the packaging box when folded, on the opposite side of the bottom inserting portion of the front portion or the rear portion where the bottom inserting portion is extended. It is about the packaging box.

Here, the fitting slot of the bottom fitting portion and the fitting slot of the cover fitting portion may be positioned opposite to each other based on a horizontal center line of the packaging box when folded.

The bottom structure of the packaging box according to the present invention having the configuration as described above is fixed by the fitting slot of the bottom fitting portion constituting a part of the bottom surface and the insertion protrusion of the bottom insertion portion facing the bottom fitting portion. Since there is no need for a separate adhesive tape to fix the bottom surface, there is an effect that a packaging box can be manufactured at a simple process and low cost.

Particularly, locking wings are provided at both ends of the insertion protrusion to prevent the insertion protrusion from falling off. Even if a vertical load is applied from the inside or outside of the packaging box, the insertion protrusion does not come out of the insertion slot and the coupling force is excellent. It has the effect of safely transporting stored items.

In addition, since the fitting part on the bottom surface and the fitting part on the cover surface are distributed on both sides based on the horizontal center line of the packaging box, the vertical load is distributed when multiple packaging boxes are stacked so that multiple packaging boxes can be safely stacked. It can have an effect.

In addition, when the packaging box is dismantled, there is an effect of providing an environment-friendly packaging box because no separate waste made of synthetic resin such as adhesive tape is generated.

1 is a perspective view showing a bottom surface of a packaging box according to the prior art.

2 is a perspective view of a bottom structure of a packaging box according to an embodiment of the present invention as viewed from the inside of the packaging box.

3 is a perspective view of the bottom structure of the packaging box of FIG. 2 as viewed from the outside of the packaging box.

Figure 4 is an exploded view showing the original cardboard for assembling the bottom structure of the packaging box of Figure 2;

5 is a perspective view showing a fitting portion of the bottom structure of the packaging box of FIG. 2.

6 is an exploded view of a packaging box including a bottom structure of the packaging box of FIG. 2.

The present invention preferably comprises a front portion and a rear portion constituting the side walls of the front and rear surfaces of the packaging box when folded; A right side and a left side constituting sidewalls of the right side and the left side of the packaging box when folded; A fitting slot that extends from either side of the front or rear side and forms part of the bottom surface of the packaging box when folded, and is formed by penetrating the body surface in a horizontal direction on one side of the square-shaped body surface and the body surface Floor fitting including a; And a trapezoidal body surface that extends from the other side of the front or rear surface and forms a part of the bottom surface of the packaging box when folded, and the width decreases from the fold and extends in a square shape from the end of the body surface to be fitted. And a bottom insertion portion including an insertion protrusion inserted into the slot, wherein the right side portion is provided with a right bottom portion extending from the right side portion and constituting a part of the right bottom surface when folded, and the left side portion , A left bottom part extending from the left side and constituting a part of the left bottom surface when folded is provided: the bottom surface of the packaging box is a bottom fitting part from the inner top to the bottom of the bottom surface, the side bottom part and the bottom on both sides The bottom fitting portion, the side bottom portions on both sides, and the bottom insertion portion are sequentially folded so as to be positioned in the order of the insertion portion.

In the present invention, since various transformations can be applied and various implementations can be provided, specific implementations will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all conversions, equivalents, or substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

Hereinafter, a floor structure of a packaging box according to the present invention will be described in more detail with reference to a preferred embodiment and the accompanying drawings.

FIG. 2 is a perspective view illustrating the bottom structure of the packaging box according to an embodiment of the present invention as viewed from the inside of the packaging box, FIG. 3 is a perspective view illustrating the bottom structure of the packaging box of FIG. 2 from the outside of the packaging box, and FIG. These are the development views.

2 to 4, the bottom structure 100 of the packaging box according to the present invention includes four sidewalls including a front portion 10, a rear portion 20, a right portion 30, and a left portion 40. Includes fields and floor surfaces. Each of the four sidewalls is bent at a right angle to each other and then fixed by adhesive blades to constitute a vertical sidewall of the packaging box.

In the present invention, the bottom surface may include a bottom fitting portion 50, a bottom inserting portion 60, a left bottom portion 70, and a right bottom portion 80.

Here, the bottom fitting portion 50 is folded at a right angle from either side of the front portion 10 or the rear portion 20 and extends to form a part of the bottom surface. In addition, the bottom insertion portion 60 is folded at a right angle on the other side of the front portion 10 or the rear portion 20, that is, the side wall not including the bottom fitting portion 50 to form a part of the bottom surface. Is extended.

In this case, the bottom fitting part 50 may include a body surface 51 having a square shape and a fitting slot formed by penetrating the body surface 51 in a horizontal direction on one side of the body surface 51. In addition, the bottom insertion part 60 has a trapezoidal body surface 61 whose width is reduced from the folded part and an insertion protrusion 62 that extends in a square shape from an end of the body surface 61 and is inserted into the fitting slot. ) Can be included.

Accordingly, according to the present invention, since the insertion protrusion 62 is fitted into the fitting slot 52 to fix the bottom surface, there is no need for a separate adhesive tape to fix the bottom surface, thereby reducing the manufacturing process of the packaging box. Shorten and reduce manufacturing cost.

In the present invention, the right side portion 30 may be provided with a right bottom portion 80 extending from the right side portion 30 and constituting a part of the right bottom surface when folded. In addition, the left bottom portion 70 may be provided with a left bottom portion 70 extending from the left side portion 40 and constituting a part of the left bottom surface when folded. At this time, the right bottom portion 80 and the left bottom portion 70 may be formed in an appropriate shape so as not to overlap with the fitting slot 52 of the bottom fitting portion 50 when folded.

At this time, the bottom surface of the packaging box according to the present invention is the order of the bottom fitting part 50, the side bottom part and the bottom inserting part 60 on both sides from the top to the bottom of the bottom, that is, from the top to the bottom. To be positioned as, the bottom fitting portion 50, the side bottom portion and the bottom insertion portion 60 on both sides may be sequentially folded and configured.

According to the present invention, the fitting slot of the bottom fitting portion 50 may be formed in a longitudinal direction parallel to the horizontal direction of the bottom surface. In addition, the fitting slot 52 of the bottom fitting part 50 may be formed to be spaced apart by a preset distance from the center line in the horizontal direction of the bottom surface. Here, the horizontal direction means the direction of the long side of the floor surface, and the vertical direction means the direction of the short side of the floor surface.

In this case, the insertion protrusion 62 of the bottom insertion part may have a horizontal length corresponding to the horizontal length of the fitting slot 52. Accordingly, when the insertion protrusion 62 of the bottom insertion part 60 is inserted into the insertion slot 52, a part of the insertion protrusion is located in the fitting slot opening space, and the rest of the insertion protrusion 62 is inserted. It penetrates through the slot 52 and is positioned in close contact with the upper surface of the bottom fitting part 50.

Accordingly, in the bottom structure of the packaging box according to the present invention, the bottom fitting portion 50, the

side bottom portions

70, 80, and the bottom insertion portion 60 are sequentially folded in the center of the bottom surface receiving the most vertical load. Therefore, compared to the conventional packaging box, even if a large vertical load is applied to the floor surface, it can withstand it.

In addition, since the fitting part, which is a part vulnerable to vertical load, is formed to be spaced from the horizontal center line of the floor surface toward the front part of the sidewall by a predetermined distance, it is possible to more firmly fix the floor surface by receiving less vertical load.

In particular, the bottom structure of the packaging box according to the present invention is, when the insertion protrusion 62 is inserted into and coupled to the insertion protrusion 62 at one or more of the ends of both sides of the insertion protrusion 62, the insertion slot 52 The locking wing 63 for preventing it from falling out may be extended and formed.

At this time, the locking wings 63 are folded inward at both ends of the insertion protrusion 62 and inserted into the fitting slot 52, and then spread outwardly at both ends of the insertion protrusion 62 to the bottom fitting part 50 Can be placed on the top surface of. At this time, the length of the locking blade 63 in the vertical direction may be equal to or larger than the length of the insertion protrusion 62 in the vertical direction. In addition, the longitudinal length (L) of the locking blade (63) may be formed larger than the longitudinal length (l) of the fitting slot (52).

5 is a perspective view showing a fitting portion of the bottom structure of the packaging box according to the present invention as described above. As shown in Figure 5, since the longitudinal length (L) of the locking blade 63 is formed larger than the longitudinal length (l) of the fitting slot 52, the locking blade 63 is the locking blade 63 A part of the fold line (a) of is in contact with both cut lines of the fitting slot 52 in the vertical direction, and the rest of the fold line (a) passes the cut line and extends to the upper surface of the bottom fitting part 50 .

Accordingly, according to the present invention, even when the bottom surface of the packaging box is pressed from the inside outward, it is possible to prevent the insertion protrusion 62 from being removed from the fitting slot 52 by the locking blade 63. In addition, even when the bottom surface of the packaging box is pressed from the outside to the inside, the locking wings 63 are caught on both ends of the insertion slot 52, so that the insertion protrusion 62 can be prevented from being removed from the insertion slot 52. There is.

In addition, according to the present invention, the length of the engaging blade 63 in the transverse direction is larger than the length of the engaging blade 63 in the longitudinal direction, so that the fitting portion can be more firmly fixed.

In the present invention, the members constituting the bottom structure of the packaging box may use conventionally known materials such as corrugated cardboard, cardboard, or synthetic resin without limitation.

As described above, the bottom structure of the packaging box according to the present invention includes the fitting slot 52 of the bottom fitting portion 50 constituting a part of the bottom surface and the bottom inserting portion facing the bottom fitting portion 50 ( Since the insertion protrusions 62 of 60) are fixed by fitting to each other, there is no need for a separate adhesive tape for fixing the bottom surface, so that a packaging box can be manufactured at a simple process and low cost.

In particular, the insertion protrusion 62 is provided at both ends of the insertion protrusion 62 to prevent the insertion protrusion from falling out, so that even when a vertical load is applied from the inside or outside of the packaging box, the insertion protrusion 62 does not come out of the insertion slot. It has the advantage of being able to safely transport the stored goods inside the packaging box due to its excellent bonding power.

In addition, when the packaging box is dismantled, a separate waste made of synthetic resin such as adhesive tape is not generated, and the waste box can be easily recycled, thereby providing an environmentally friendly packaging box.

Another aspect of the present invention relates to a packaging box comprising the floor structure as described above. 6 is an exploded view for assembling such a packaging box.

6, the packaging box according to another embodiment of the present invention includes the floor structure as described above, and the bottom fitting portion 50 is extended from the front portion 10 or the rear portion 20. On the opposite side of the bottom fitting portion 50, a cover insertion portion 60a formed in the same shape as the bottom insertion portion 60 is extended to form a part of the cover surface of the packaging box when folded. In addition, on the opposite side of the bottom insertion portion 60 of the front portion 10 or the rear portion 20 in which the bottom insertion portion 60 is extended, to form part of the cover surface of the packaging box when folded. , The cover fitting portion 50a configured in the same shape as the bottom fitting portion may be extended and formed.

Accordingly, in the packaging box according to the present invention, the insertion slot 52 of the bottom fitting portion 50 and the fitting slot 52a of the cover fitting portion 50 are, based on the horizontal center line of the packaging box when folded. , The positions may be located opposite each other.

Therefore, in the packaging box according to the present invention, since the fitting portion on the bottom surface and the fitting portion on the cover surface are distributed on both sides based on the horizontal center line of the packaging box, vertical load is distributed when multiple packaging boxes are stacked. As a result, multiple packaging boxes can be safely stacked.

In the above, preferred embodiments of the present invention have been described, but those of ordinary skill in the relevant technical field can add, change, delete or add components within the scope not departing from the spirit of the present invention described in the claims. Various modifications and changes may be made to the present invention by addition or the like, and it will be said that this is also included within the scope of the present invention. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form. The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

The present invention simplifies the work process and minimizes the use of subsidiary materials such as adhesive tapes by combining the floor members constituting the bottom surface of the packaging box with each other by reinforcing the bonding force between the floor members to safely transport the stored goods. It relates to a bottom structure of a packaging box and a packaging box including the same, according to the present invention, the insertion protrusion of the bottom insertion portion facing the bottom fitting portion and the bottom fitting slot constituting a part of the bottom surface are fitted with each other By being fixed by bonding, it is possible to manufacture a packaging box with a simple process and low cost because there is no need for a separate adhesive tape for fixing the bottom surface while maintaining the bonding force of the bottom surface.

Claims

Front and rear portions constituting side walls of the front and rear surfaces of the packaging box when folded;

A right side and a left side constituting sidewalls of the right side and the left side of the packaging box when folded;

A fitting slot that extends from either side of the front or rear side and forms part of the bottom surface of the packaging box when folded, and is formed by penetrating the body surface in a horizontal direction on one side of the square-shaped body surface and the body surface Floor fitting including a; And

The body surface of the trapezoidal shape that extends from the other side of the front or rear surface and forms a part of the bottom surface of the packaging box when folded, and the width decreases from the fold, and the insertion slot extends in a square shape from the end of the body surface A bottom insertion portion including an insertion protrusion inserted into the bottom;

Floor structure of the packaging box, characterized in that it is configured to include.
The method of claim 1,

In the right side portion, a right bottom portion extending from the right side portion and constituting a part of the right bottom surface when folded is provided,

The bottom structure of a packaging box, characterized in that the left bottom part is provided with a left bottom part extending from the left side and forming a part of the left bottom surface when folded.
The method of claim 1,

The bottom surface of the packaging box,

Packaging characterized in that the bottom fitting portion, the side bottom portions of both sides, and the bottom insert portion are sequentially folded so that the bottom fitting portion, the side bottom portions on both sides, and the bottom insertion portion are placed in the order from the inner upper side of the bottom surface to the bottom. The floor structure of the box.
The method of claim 1,

The fitting slot of the bottom fitting part,

Floor structure of a packaging box, characterized in that formed in a longitudinal direction parallel to the horizontal direction of the bottom surface.
The method of claim 1,

The fitting slot of the bottom fitting part,

Floor structure of a packaging box, characterized in that formed to be spaced apart by a predetermined distance from the horizontal center line of the bottom surface.
The method of claim 1,

The insertion protrusion of the bottom insertion portion,

Floor structure of a packaging box, characterized in that the transverse length corresponds to the transverse length of the fitting slot.
The method of claim 6,

At any one or more ends of both ends of the insertion protrusion,

The bottom structure of the packaging box, characterized in that the engaging blades for preventing the insertion protrusion from being removed from the insertion slot are extended.
The method of claim 7,

The locking wing,

The floor structure of a packaging box, characterized in that after being folded inward at both ends of the insertion protrusion and inserted into the insertion slot, it is spread outwardly at both ends of the insertion protrusion and disposed on the upper surface of the bottom fitting portion.
The method of claim 8,

The lengthwise length of the locking blade,

Floor structure of a packaging box, characterized in that formed to be greater than the length of the longitudinal direction of the insertion protrusion.
The method of claim 8,

The lengthwise length of the locking blade,

Floor structure of the packaging box, characterized in that formed longer than the lengthwise length of the fitting slot.
The method of claim 8,

The widthwise length of the locking wing,

Floor structure of the packaging box, characterized in that formed longer than the lengthwise length of the locking wing.
The method of claim 8,

The locking wing,

A bottom structure of a packaging box, characterized in that a part of the folding line of the locking wing is in contact with both cutting lines of the fitting slot in a vertical direction, and the rest of the folding line extends to the upper surface of the bottom fitting part past the cutting line.
In a packaging box comprising a floor structure of any one or more of claims 1 to 12,

A cover insertion portion configured in the same shape as the bottom insertion portion is formed so as to form a part of the cover surface of the packaging box when folded, on the opposite side of the bottom fitting portion in the front portion or the rear portion where the bottom fitting portion is extended, and ,

A cover fitting portion configured in the same shape as the bottom fitting portion is formed to be extended on a side opposite to the bottom insert portion of the front portion or the rear portion where the bottom insert portion extends, so as to form a part of the cover surface of the packaging box when folded. Packaging box characterized by.
The method of claim 13,

The fitting slot of the bottom fitting portion and the fitting slot of the cover fitting portion,

A packaging box, characterized in that when folded, the positions thereof are located opposite to each other based on the horizontal center line of the packaging box.