KR102375254B1 - Eco friendly packing box - Google Patents

Abstract

The disclosed eco-friendly packaging box is formed of a bendable and foldable fabric, an endothelium defining an article receiving space in which the article is accommodated, an outer shell formed of a bendable and foldable fabric, and a portion surrounding the endothelium so as to be spaced apart from the endothelium; It is inserted and installed in the space spaced apart between the endothelium and the outer skin, and provided with a pair of overlapping vinyls to provide a sealed space, when air is injected into the sealed space, the volume expands, and when air is released from the sealed space An air cushion that shrinks in volume is provided. When the air cushion in which the air is released in the sealed space is bent and folded together with the endothelium and the outer shell, air is injected into the sealed space of the air cushion and the volume is reduced compared to the case where the endothelium and the outer skin are unfolded.

Description

Eco friendly packing box

The present invention relates to a packaging box used for transporting goods, and to an eco-friendly packaging box that is easy to collect for reuse and has excellent thermal insulation and buffering effects.

A packaging box is a box for accommodating an item so that the item can be safely transported without being damaged, and the demand for it is explosively increasing with the development of online shopping and courier delivery. A general packaging box is made of a paper material such as corrugated cardboard, and a packaging box used for transporting fresh or frozen food is made of a Styrofoam material.

Paper packaging boxes are easily damaged in the process of attaching and peeling the adhesive tape, and it is difficult to reuse them as they are easily damaged even by small impacts. Paper packaging boxes, which are difficult to reuse, can be recycled by pulverizing and re-molding.

It is difficult to reuse the packaging box made of Styrofoam because it is molded into a shape in which a specific article is inserted and is easily damaged. In addition, in reality, recycling is difficult because recycling companies avoid collection, and even if they do, they have to pay a surcharge. However, if the Styrofoam box is incinerated or landfilled, a large amount of environmental pollutants are emitted, which is very harmful to the environment.

Registered Utility Model Publication No. 20-0407206

The present invention provides an eco-friendly packaging box that can be easily reused while safely protecting an item to be transported from external impact.

The present invention provides an eco-friendly packaging box that can replace the packaging box made of Styrofoam material due to its excellent thermal insulation function.

The present invention is formed of a fabric that can be bent and folded, an endothelium defining an article receiving space in which an article is accommodated, an outer shell formed of a bendable and foldable fabric, and having a portion surrounding the endothelium so as to be spaced apart from the endothelium; and It is inserted and installed in the space spaced apart between the endothelium and the outer shell, and provided with a pair of overlapping vinyls to provide a sealed space, and when air is injected into the sealed space, the volume expands, and the air in the sealed space is provided with an air cushion whose volume is contracted when released and provides an eco-friendly packaging box in which the volume is reduced compared to the case in which the endothelium and the outer skin are unfolded.

The fabric of the endothelium and the outer skin may be a thermoplastic polyolefin-based tarpaulin.

An upper opening is formed in the endothelium to open the article receiving space upward, the endothelium has an inner bottom surface and an inner side surface extending upward from an outer peripheral edge of the inner bottom surface, and the outer skin is the inner bottom surface and an outer bottom surface spaced apart from the inner side surface, an outer side surface spaced apart from the inner side surface and connected to the outer peripheral edge of the outer floor surface, and a cover surface connected to open and close to the upper edge of the outer side surface, the air cushion being the spaced apart It may include a bottom air pad disposed between the inner bottom surface and the outer bottom surface, and a side air pad disposed between the spaced apart inner side and outer side and connected to the floor air pad to be airflowably connected. there is.

The outer bottom surface is openably connected to the lower edge of the outer side, and the air cushion is detachable in a space spaced apart from the inner shell and the outer shell in a state in which the outer bottom surface is opened with respect to the lower edge of the outer side. can be tightly fitted.

Zipper rails are respectively coupled to the outer peripheral edge of the cover surface and the upper edge of the outer side so that the outer peripheral edge of the cover surface and the upper edge of the outer side are connected by a zipper, and the outer peripheral edge of the bottom surface and a zipper rail are respectively coupled to the outer peripheral edge of the bottom surface and the lower edge of the outer side so that the lower edge of the outer side is zip-connected. When bent and folded together, the outer peripheral edge of the cover surface and the outer peripheral edge of the bottom surface can be zip-connected using a zipper rail coupled to the outer peripheral edge of the cover surface and a zipper rail coupled to the outer peripheral edge of the bottom surface. .

The cover surface has an outer periphery connected openly to the upper edge of the outer side, and a core portion connected to the inner peripheral edge of the outer periphery so that the upper opening of the endothelium is opened, and the inner side is It may be connected and supported on the outer periphery.

The air cushion may include an air injection unit for injecting air into the sealed space and releasing air from the sealed space, and an air injection unit through-hole may be formed in the shell so that the air injection unit penetrates and is exposed to the outside. there is.

The eco-friendly packaging box of the present invention is provided with an air cushion to safely protect the packaged goods from external impact, and reduces the volume by removing air from the air cushion and bending and folding the outer and inner skins together with the air cushion from which the air is removed. It can be made compact and easy to carry. The reduced volume of the eco-friendly packaging box can be easily collected and reused in a manner similar to the method of collecting and reusing empty bottles, thereby reducing environmental pollution caused by disposal of the packaging box, that is, incineration or landfill.

In addition, the air cushion provided in the eco-friendly packaging box of the present invention is excellent in not only a buffering effect but also an insulating effect, so that when fresh or frozen food is packaged and transported, deterioration of the fresh food or frozen food is suppressed. In other words, instead of the packaging box made of Styrofoam, the eco-friendly packaging box of the present invention can be applied to packaging and transport of fresh or frozen food, so that environmental pollution caused by the packaging box made of Styrofoam can be remarkably suppressed.

On the other hand, the eco-friendly packaging box according to a preferred embodiment of the present invention having an inner shell and an outer shell formed of a fabric made of a thermoplastic polyolefin-based tarpaulin is the thermoplastic polyolefin-based tarpaulin even if the outer shell or the inner shell is damaged during use and discarded by incineration or landfill method. No toxic substances are produced that are harmful to the human body or cause environmental pollution. In addition, since only the damaged member from among the inner shell, the outer shell, and the air cushion is separated and discarded, and the undamaged member can be reused, the occurrence of environmental pollution is minimized.

1 is a perspective view of an eco-friendly packaging box according to an embodiment of the present invention.
2 is an exploded perspective view of the eco-friendly packaging box of FIG. 1 .
3 is a perspective view illustrating an open state of the cover surface of the eco-friendly packaging box of FIG. 1 .
4 is a perspective view showing a state in which the eco-friendly packaging box of FIG. 1 is folded to reduce the volume.

Hereinafter, an eco-friendly packaging box according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Terms used in this specification are terms used to properly express preferred embodiments of the present invention, which may vary depending on the intention of a user or operator or customs in the field to which the present invention belongs. Accordingly, definitions of these terms should be made based on the content throughout this specification.

1 is a perspective view of an eco-friendly packaging box according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the eco-friendly packaging box of FIG. 1, and FIG. 3 is a perspective view showing the open state of the cover surface of the eco-friendly packaging box of FIG. am. Referring to FIGS. 1 to 3 together, the eco-friendly packaging box 1 according to an embodiment of the present invention includes an inner shell 2 , an outer shell 20 , and an air cushion 10 .

The endothelium 2 defines an article receiving space 7 in which the article is received. The endothelium 2 has a substantially rectangular inner bottom surface 3 and four inner side surfaces 4 bent at the outer peripheral edge of the inner bottom surface 3 and extending upward. The four inner side surfaces 4 are connected to each other by adjacent edges. An upper opening is formed in the endothelium 2 so that the article accommodating space 7 is opened upward. The endothelium 2 is bendable and foldable, and is formed of a fabric having waterproof properties. For example, the fabric as the material of the endothelium 2 may be a thermoplastic polyolefin-based tarpaulin.

The outer shell 20 has a portion surrounding the endothelium 2 so as to be spaced apart from the endothelium 2 . Specifically, the shell 20 is a substantially rectangular outer bottom surface 21 spaced apart from the inner bottom surface 3, the four inner side surfaces 4 and spaced apart from the outer peripheral edge of the outer bottom surface 21. It has four outer side surfaces 25 that are connected, and a cover surface 30 that is openably connected to the upper corners of the four outer side surfaces 25 . The four outer side surfaces 25 are connected to each other by adjacent edges. Like the inner skin 2, the outer skin 20 is bendable and foldable, and is formed of a fabric having waterproof properties. For example, the material of the outer skin 20 may be a thermoplastic polyolefin-based tarpaulin, such as the material of the inner skin 2 .

A space 42 in which the air cushion 10 is inserted is provided between the inner shell 2 and the outer shell 20 . Specifically, in the space between the four inner side surfaces 4 and the four outer side surfaces 25, four side air pads 13 of the air cushion 10 to be described later are inserted and disposed, and the inner bottom surface A bottom air pad 11 of an air cushion 10 to be described later is inserted into the space between (3) and the outer bottom surface 21 .

The outer bottom surface 21 is connected to the lower edge of the four outer side surfaces 25 by a first zipper (Z1). Specifically, the first zipper Z1 corresponds to a zipper rail 23 sewn-coupled to three of the four outer peripheral edges of the outer bottom surface 21 and the zipper rail 23 . A zipper rail 27 sewn-coupled to three lower corners of the lower corners of the four outer side surfaces 25 and a zipper coupling hole (not shown) for engaging the pair of zipper rails 23 and 27 are provided. do. One outer peripheral edge of the outer bottom surface 21 to which the zipper rails 23 and 27 are not sewn together and the lower edge of the one outer side surface 25 are integrally connected, but the outer bottom surface 21 is A fold line (not shown) may be formed to accurately fold about one outer side surface 25 .

When the zipper coupler is moved in one direction along the zipper rails 23 and 27, the outer bottom surface 21 opens with respect to the four outer side surfaces 25 as shown in FIG. 2) The space 42 in which the air cushion 10 is inserted and installed between the shell 20 is opened downward. On the other hand, when the zipper coupler is moved in the opposite direction along the zipper rails 23 and 27 , the outer bottom surface 12 is moved against the four outer side surfaces 25 as shown in FIGS. 1 and 3 . When closed, the space 42 in which the air cushion 10 is inserted and installed between the endothelium 2 and the outer skin 20 is closed downward.

The cover surface 30 has an outer peripheral portion 31 connected to the upper edge of the four outer side surfaces 25 so that the upper opening of the endothelium 2 is opened. It has a core portion (36) connected to each other. In other words, the outer peripheral edge of the cover surface 30 , specifically, the outer peripheral edge of the outer peripheral portion 31 is connected to the upper edge of the four outer side surfaces 25 by the second zipper Z2 .

The second zipper (Z2) has a zipper rail (33) sewn-coupled to three of the four outer peripheral edges of the outer peripheral part (31), and four outer side surfaces (25) corresponding to the zipper rail (33). and a zipper rail 28 sewn-coupled to the three sing ends of the upper edges of the , and a zipper coupling hole (not shown) for engaging the pair of zipper rails 33 and 28 . One outer peripheral edge of the outer peripheral portion 31 to which the zipper rails 33 and 28 are not sewn together and the upper edge of one outer side surface 25 are integrally connected, but the cover surface 30 is A fold line (not shown) may be formed to accurately fold against the outer side 25 .

When the zipper coupler is moved in one direction along the zipper rails 33 and 28 , the cover surface 30 is opened with respect to the four outer side surfaces 25 as shown in FIG. 2 . On the other hand, if the zipper coupler is moved in the opposite direction along the zipper rails 33 and 28 , the cover surface 30 is closed with respect to the four outer side surfaces 25 as shown in FIG. 1 .

The core part 36 has a substantially rectangular shape, and four outer peripheral edges of the core part 36 are connected to the four inner peripheral edges of the outer peripheral part 31 by a third zipper Z3 . The third zipper Z3 is a zipper rail 34 sewn-coupled to three inner peripheral edges of the four inner peripheral edges of the outer peripheral part 31, and the core part 36 corresponding to the zipper rail 34. A zipper rail 38 sewn-coupled to three of the four outer peripheral edges, and a zipper coupling hole (not shown) for engaging the pair of zipper rails 34 and 38 are provided. One outer peripheral edge of the core part 36 to which the zipper rails 34 and 38 are not sewn together and one inner peripheral edge of the outer peripheral part 31 are integrally connected, but the core part 36 is connected to the outer peripheral part A fold line (37) is formed so as to fold precisely about (31).

When the zipper coupler is moved in one direction along the zipper rails 34 and 38, as shown in FIG. 2, the core part 36 opens with respect to the outer peripheral part 31, and the endothelium 2 The upper opening is opened to the upper side of the eco-friendly packaging box (1). On the other hand, when the zipper coupler is moved in the opposite direction along the zipper rails 34 and 38 , the core part 36 is closed with respect to the outer peripheral part 31 as shown in FIG. 1 . Accordingly, in a state in which the outer peripheral portion 31 is closed with respect to the four outer side surfaces 25 and the core portion 36 is opened with respect to the outer peripheral portion 31, the user of the eco-friendly packaging box 1 is the inner skin ( 2), an article can be put into the article accommodating space 7 or the article accommodated in the article accommodating space 7 can be taken out of the eco-friendly packaging box 1 .

The four inner side surfaces 4 of the endothelium 2 are connected to and supported on the outer periphery 31 of the cover surface 30 . In other words, the upper edges of the four inner side surfaces 4 are connected to and supported by the fourth zippers Z4 on the lower surface of the outer peripheral portion 31 . The fourth zipper (Z4) is sewn-coupled to the zipper rail (5) sewn to the upper edge of the four inner peripheral side surfaces (4), and to the lower surface of the outer peripheral part (31) to correspond to the zipper rail (5). and a zipper rail (35), and a zipper coupling hole (not shown) for engaging the pair of zipper rails (5, 35).

When the zipper coupler is moved in one direction along the zipper rails 5 and 35 , the four inner side surfaces 4 are coupled and supported by the outer peripheral portion 31 . Accordingly, unless the outer periphery 31 is opened with respect to the four outer side surfaces 25 , the inner shell 20 does not move and the inner shell 2 is fixed in position. On the other hand, when the zipper coupler is moved in the opposite direction along the zipper rails 5 and 35 , the inner skin 2 is separated from the outer peripheral portion 31 . A handle 40 is fixedly coupled to the upper surface of the corner part 36 so that a user can easily carry the eco-friendly packaging box 1 by holding it with one hand.

The air cushion 10 is inserted and installed in the space 42 spaced apart between the inner shell 2 and the outer shell 20, and includes a floor air pad 11, four side air pads 13, and air injection. A portion 15 is provided. The bottom air pad 11 has a substantially rectangular shape, and the four side air pads 13 also have a substantially rectangular shape, respectively. The four side air pads 13 are bent at the four outer peripheral edges of the bottom air pad 11 to extend upward. The bottom air pad 11 and the four side air pads 13 are configured with a pair of overlapping vinyl to provide a sealed space filled with air. The overlapping pair of vinyls may be fused to each other to form the sealed space. The bottom air pad 11 and the four side air pads 13 are connected to each other to allow air flow. The vinyl may be made of, for example, polyethylene (PE) or polyvinyl chloride (PVC).

When the sealed space of the floor air pad 11 is filled with air, the floor air pad 11 expands in volume, and the inner floor of the space 42 between the inner shell 2 and the outer shell 20 It has a size and shape corresponding to the size and shape of the space between the surface 3 and the outer bottom surface 21 . When the sealed space of the four side air pads 13 is filled with air, the volume of the four side air pads 13 expands to form a space 42 between the endothelium 2 and the outer skin 20 . Among them, it has a size and shape corresponding to the size and shape of the space between the four inner side surfaces 4 and the four outer side surfaces 25 .

On the other hand, when the air filled in the sealed space of the bottom air pad 11 and the sealed space of the four side air pads 13 is released to the outside, the volume of the air cushion 10 is contracted. When the air is completely discharged from the bottom air pad 11 and the four side air pads 13, the bottom air pad 11 and the four side air pads 13 are formed like a sheet or a film. It is thin and can be easily bent and folded.

As shown in FIG. 2 , in a state in which the outer bottom surface 21 is opened with respect to the lower edges of the four outer side surfaces 25 , the air cushion 10 in which air is injected into the sealed space is the endothelium (2) and detachably fitted in the space (42) between the outer shell (20).

The air injection unit 15 is for injecting air into the sealed space inside the air cushion 10 and releasing air from the sealed space, and is formed at the top of one of the four side air pads 13 . In the shell 20 , specifically, the air injection part 15 penetrates one side of the outer peripheral part 31 that is vertically aligned with the air injection part 15 on the cover surface 30 so that the air is exposed to the outside. The injection part through-hole 39 is formed. Accordingly, as shown in FIG. 1 , the upper end of the air injection unit 15 is exposed to the upper side of the eco-friendly packaging box 1 . The user injects air into the air cushion 10 through the upper end of the air injection unit 15 in a state where the air cushion 10 is inserted and installed in the space 42 between the endothelium 2 and the outer skin 20, Air can be discharged from the air cushion (10).

An open window 26 is formed on one of the four outer sides 25 . The user of the eco-friendly packaging box 1 checks whether the air cushion 10 is correctly installed in the space 42 between the inner shell 2 and the outer shell 20 through the open window 26, and the air cushion 10 ), it is possible to determine whether the degree of air injection into the sealed space is appropriate.

4 is a perspective view showing a state in which the eco-friendly packaging box of FIG. 1 is folded to reduce its volume. 1 to 4 together, when the user of the eco-friendly packaging box 1 wants to put the item in the item receiving space 7 of the inner skin 2, as shown in FIG. 1, the outer side 25 and The inner shell 2 is unfolded and the air cushion 10 is inflated so that the outer bottom surface 21 and the cover surface 30 are spaced apart from each other, and the packaging box 1 of an original shape can be used. On the other hand, when there is no article accommodated in the article accommodating space 7, the user of the eco-friendly packaging box 1 bends the outer side 25, the inner shell 2, and the air cushion 10 as shown in FIG. It is possible to use a packaging box 1 of a shrunk shape in which the outer bottom surface 21 and the cover surface 30 are directly connected to each other by being folded.

The eco-friendly packaging box (1) can be transformed into its original form and reduced form by folding the air cushion (10) in which air is released from the sealed space of the air cushion (10) together with the inner shell (2) and the outer shell (20). In this case, air is injected into the sealed space of the air cushion 10, and the characteristics of the eco-friendly packaging box 1 are used in that the volume is reduced compared to the case in which the inner shell 2 and the outer shell 20 are unfolded.

In other words, the user of the eco-friendly packaging box 1 completely exhausts air from the sealed space of the air cushion 10 with the air cushion 10 installed in the space 42 between the inner shell 2 and the outer shell 20. When the air cushion 10, from which the air is completely released, is bent and folded together with the inner side 4 and the outer side 25, the outer peripheral edge of the cover surface 30, that is, the outer peripheral portion 31 of The outer peripheral edge and the outer peripheral edge of the bottom surface 21 are closely facing each other. When the user connects the outer peripheral edge of the outer peripheral part 31 and the outer peripheral edge of the bottom surface 21 with the fifth zipper Z5, the reduced packaging box 1 is obtained.

The fifth zipper (Z5) has a zipper rail 23 sewn-coupled to three outer peripheral edges of the four outer peripheral edges of the outer bottom surface 21, and three outer peripheral edges of the four outer peripheral edges of the outer peripheral part 31 and a zipper rail 33 sewn together to the zip rail 33, and a zipper coupling hole for engaging the pair of zipper rails 23 and 33. The zipper rail 23 is a zipper rail constituting the first zipper Z1, and the zipper rail 33 is a zipper rail constituting the second zipper Z2. The zipper coupler is either a zipper coupler constituting the first zipper Z1 or a zipper coupler constituting the second zipper Z2.

When the user moves the zipper coupler along the zipper rails 23 and 33 in one direction, the outer peripheral edge of the outer bottom surface 21 and the outer peripheral edge of the cover surface 20 are connected. When the user wants to put the item back into the eco-friendly packaging box 1 , the user moves the zipper coupling port along the zipper rails 23 and 33 in the opposite direction to the outer periphery of the outer bottom surface 21 . When the edge and the outer peripheral edge of the cover surface 20 are separated, and air is filled into the inside of the air cushion 10 through the air injection part 15 exposed to the upper side of the cover surface 30, an eco-friendly packaging box ( 1) is restored to the original shape shown in FIG. 1 .

The eco-friendly packaging box (1) described above can be provided with an air cushion (10) to safely protect the packaged goods from external impacts, and the air is removed from the air cushion (10) and the outer shell (20) and the inner shell (2) ) can be reduced in volume by bending and folding together with the air cushion 10 from which the air is removed, so that it is easy to carry. As shown in FIG. 4, the eco-friendly packaging box 1 with reduced volume can be easily collected and reused in a similar manner to the method of collecting and reusing empty bottles, so that the packaging box 1 is disposed of, that is, incinerated or buried. environmental pollution can be reduced. For example, when a buyer purchases an item, the buyer pays the package box collection fee as well as the delivery cost to the goods seller, and the buyer collects the packaging box collection fee when returning the used eco-friendly packaging box (1) to a mart or convenience store. , the goods seller may collect the eco-friendly packaging box 1 through the mart or convenience store.

In addition, the air cushion 10 provided in the eco-friendly packaging box 1 is excellent in not only a buffering effect but also an insulating effect, so that when fresh or frozen food is packaged and transported, deterioration of the fresh or frozen food is suppressed. In other words, instead of the packaging box made of Styrofoam, the eco-friendly packaging box 1 of the present invention can be applied to packaging and transport of fresh or frozen food, so that environmental pollution caused by the packaging box made of Styrofoam material can be significantly suppressed. can

In addition, since the inner shell 2 and the outer shell 20 are formed of a fabric made of a thermoplastic polyolefin tarpaulin, even if the outer shell 20 or the inner shell 2 is damaged during use and discarded by incineration or a landfill method, the thermoplastic polyolefin-based No toxic substances are produced from tarpaulins that are harmful to the human body or cause environmental pollution. In addition, since only damaged members from among the endothelium 2, the shell 20, and the air cushion 10 are separated and discarded, and the undamaged members can be reused, the occurrence of environmental pollution is minimized.

Meanwhile, in the eco-friendly packaging box 1 according to the embodiment of the present invention described above, adjacent parts are connected by zippers Z1, Z2, Z3, Z4, and Z5, but the present invention is limited to a configuration having the zipper Instead of the zipper, for example, Velcro tape or a snap fastener may be applied.

Although the present invention has been described with reference to the embodiment shown in the drawings, which is only exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true scope of protection of the present invention should be defined only by the appended claims.

1: Eco-friendly packaging box 2: Inner skin
10: air cushion 15: air inlet
20: outer shell 21: outer bottom surface
25: outer side 30: cover side

Claims (7)

an endothelium formed of a bendable and foldable fabric, the endothelium having an inner side surface and an inner bottom surface to define an article receiving space in which the article is accommodated; It is formed of a fabric that can be bent and folded, and an outer side surrounding the endothelium so as to be spaced apart from the inner side and the outer side, respectively, an outer bottom surface connected to the lower edge of the outer side so as to be opened or closed, and the upper edge of the outer side can be opened and closed a shell having a cover surface connected thereto; a first zipper connecting the outer bottom surface and the lower edge of the outer side surface; a second zipper connecting the upper edge of the outer side and the cover surface; And, to be inserted into the space between the endothelium and the outer shell, provided with a pair of overlapping vinyl so as to provide a sealed space, the volume expands when air is injected into the sealed space, the sealed space When the air is released from the air cushion (air cushion) the volume is contracted; provided,
A plurality of horizontally parallel grooves are formed on the side of the air cushion to be folded up and down,
A zipper rail formed on the cover surface of the first zipper, a zipper rail formed on the outer bottom surface of the second zipper, and a zipper rail formed on the cover surface when the cover surface and the outer bottom surface contact each other. and a zipper coupling hole for engaging the zipper rails formed on the outer bottom surface of the second zipper with each other,
When the air cushion in which air is released in the sealed space is bent and folded together with the inner and outer skins, the volume of the air cushion is reduced, so that the cover surface and the outer bottom surface can be zipped together. According to claim 1,
An eco-friendly packaging box, characterized in that the fabric of the inner shell and the outer shell is a thermoplastic polyolefin-based tarpaulin (tarpaulin). According to claim 1,
An upper opening is formed in the endothelium so that the article receiving space is opened upwardly,
The endothelium has an inner bottom surface, and an inner side surface extending upward from the outer peripheral edge of the inner bottom surface,
The outer shell has an outer bottom surface spaced apart from the inner bottom surface, an outer side spaced apart from the inner side surface and connected to the outer peripheral edge of the outer bottom surface, and a cover surface connected to the upper edge of the outer side so as to open and close, ,
The air cushion includes a floor air pad disposed between the spaced apart inner bottom surface and an outer bottom surface, and a side surface disposed between the spaced inner side and outer side surfaces and connected to the floor air pad in an air flow manner. An eco-friendly packaging box comprising an air pad. 4. The method of claim 3,
The outer bottom surface is connected to the lower edge of the outer side so as to open or close,
Eco-friendly packaging box, characterized in that the air cushion is detachably fitted in the space spaced apart between the inner shell and the outer shell in a state in which the outer bottom surface is opened with respect to the lower edge of the outer side. delete 4. The method of claim 3,
The cover surface has an outer periphery connected to the upper edge of the outer side so that the upper opening of the endothelium is opened and a core portion connected to the inner peripheral edge of the outer periphery to open and close;
Eco-friendly packaging box, characterized in that the inner side is connected to the outer periphery and supported. According to claim 1,
The air cushion includes an air injection unit for injecting air into the sealed space and releasing air from the sealed space,
An eco-friendly packaging box, characterized in that the air injection part through-hole is formed in the outer skin so that the air injection part penetrates and is exposed to the outside.

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