KR102403069B1 - Epp packaging with pad bonding - Google Patents

Abstract

The present invention relates to an EPP packaging material to which a pad is coupled, and more particularly, a material and a different material for the cover portion at the corners of a pair of cover portions of the EPP material that wraps the upper and lower portions of the packaging article, respectively, and the cross-section is It is characterized in that the pad part of the 'L' shape is coupled. For this reason, it is possible to solve the problem of slipping due to the low coefficient of friction of the cover part, and there is an effect that it is possible to prevent bending or distortion of the cover part in the process of wrapping and packaging with a string.

Description

EPP packaging material with pad bonding {EPP PACKAGING WITH PAD BONDING}

The present invention relates to an EPP packaging material to which a pad is bonded. In more detail, it is characterized in that the material of the cover part and the different material are at the corners of a pair of cover parts of EPP material that wraps the upper part and the lower part of the packaging article, respectively, and the pad part having a 'L' shape in cross section is coupled. . For this reason, it is possible to solve the problem of slipping due to the low coefficient of friction of the cover part, and there is an effect that it is possible to prevent bending or distortion of the cover part in the process of wrapping and packaging with a string.

Electronic devices such as refrigerators, washing machines, large TVs and air conditioners are shipped packaged through the packaging process at the final stage of the manufacturing process or are placed in the warehouse to wait for shipment. Accordingly, the packaging material is standardized and packaged in a covered form.

Mainly, the packaging material is generally molded with a cushioning material of synthetic resins such as expandable polystyrene (EPS) called styropole, which is a material excellent in absorbing and reducing external force.

However, there is a problem in that the packaging material provided with the EPS is wrapped along the outer surface of the packaging article, is tied with a string such as a twine, and then damaged in the process of being transported to a delivery place or a warehouse.

1 illustrates a state in which an article is packaged with a conventional packaging material made of EPS, and tied with a string. At this time, as shown in FIG. 1 , the packaging material is distorted by the load generated by the tight string, and the role of the cushioning material for absorbing shock to protect the article is insufficient.

Accordingly, the development of applying the EPP material to the conventional packaging material made of EPS is being actively developed.

Here, EPP (Expanded Polypropylene) is expanded polypropylene, which does not use a chemical foaming agent and uses a physical foaming agent, so it is more environmentally friendly than EPS and has the advantage of low cost.

In addition, EPP is attracting attention as a material to replace general-purpose materials such as EPS because of its excellent flexibility, chemical resistance, and repeated buffering properties.

However, due to the soft nature (softness) of the EPP material, there is a problem in that when the box is covered on the upper and lower parts of the article to be packaged, it is bent while being tied with a string.

That is, the packaging material provided with EPP is more ductile than the packaging material provided with EPS, so it is easy to bend and warp. Accordingly, when the packaging material covered with the upper and lower parts of the packaging product is tied with a string and fixed, the packaging material provided with EPP is a string It bends as it is under the force of the product, and the article receives the load of the string as it is and receives pressure continuously while it is packaged.

In addition, since the packaging material provided with EPP has a low coefficient of friction, there is a problem in that the string is not fixed from the packaging material in the process of fixing the packaging article and the packaging material with a string, but slips off.

Therefore, there is a need to develop an auxiliary packaging material or packaging material that has superior flexibility, chemical resistance, and repeat buffering properties superior to EPS, and can prevent friction and warpage of EPP while using eco-friendly EPP as it is.

KR 2003-0060029 A

The present invention relates to an EPP packaging material to which a pad is coupled, and more particularly, a material and a different material for the cover portion at the corners of a pair of cover portions of the EPP material that wraps the upper and lower portions of the packaging article, respectively, and the cross-section is It is characterized in that the pad part of the 'L' shape is coupled. For this reason, it is possible to solve the problem of slipping due to the low coefficient of friction of the cover part, and there is an effect that it is possible to prevent bending or distortion of the cover part in the process of wrapping and packaging with a string.

In order to achieve the above object, the EPP packaging material to which the pad is coupled according to the present invention includes a pair of cover parts made of EPP material respectively surrounding the upper and lower portions of the packaging article; a reinforcing part connecting the pair of cover parts; and a plurality of pad parts made of different materials from the material of the cover part coupled to the edges of both ends of the cover part, wherein the cover part includes a guide groove extending along the width direction of the cover part; and A string is wrapped along the guide groove and the pad part.

According to the present invention, the pad part has a '┓' shape that is bent in the vertical direction based on the corners of both ends of the cover part.

According to the present invention, the cover portion is provided with a pad groove in which a predetermined thickness is recessed to correspond to the shape of the pad portion.

According to the present invention, when viewed from the front, the pad groove is provided as a hollow portion having a trapezoidal shape in which a lower side is longer than an upper side, in which a cross-section to which the pad unit is coupled.

According to the present invention, the pad groove, when viewed from the front, is shorter than the length of the pad portion in the longitudinal direction to be fitted with a force fit.

According to the present invention, the pad groove, when viewed from the front, is provided with an edge portion to be processed.

According to the present invention, the combination of the cover part and the pad part is performed by a hot melt method.

According to the present invention, both ends of the pad part are provided with protrusions bent in a direction perpendicular to the pad part.

According to the present invention, the protrusion is provided in plurality, and the pad groove is provided with a protrusion groove accommodating the protrusion at a predetermined interval in the longitudinal direction.

According to the present invention, the pad part is one of paper, metal, and plastic.

According to the EPP packaging material to which the pad of the present invention is combined, when the string is wrapped along the outer surface of the upper cover made of EPP material, the point at which the string is bent at the outer surface of the upper cover, that is, both ends of the upper guide groove By combining the pad part of dissimilar materials (material different from the cover part) to be combined, the conventional upper cover part has a low friction coefficient and slippery problem (the problem of difficult bending when the EPP material has a low friction coefficient when the string is wound) is supplemented. This has the effect of improving the fixation force.

In addition, the upper guide groove has an effect of restricting movement of the string in a shape having a step difference from the outer surface of the upper base.

In addition, only the assembly process in which the pad part bent in the cross section of the 'L' shape is combined at the edge point (pad groove) of the outer surface of the cover, when the string is wound along the outer surface of the cover part and the packaging article, the cover There is an effect of minimizing the bending of the part and limiting the detachment of the string to improve the fixing force of the string and the cover part.

In addition, since both ends of the plurality of reinforcing bars extending in the vertical direction are respectively coupled to the support grooves provided on the inner surfaces of the pair of cover parts, only the minimum points of the outer corners of the packaged article are packed, thereby reducing costs, As the working process is shortened, productivity is improved, and the amount of packaging boxes is reduced, thereby eliminating the cause of environmental pollution.

1 shows a damaged state by packaging by a conventional packaging material.
Figure 2 shows the packaging state of the article according to the present invention.
Figure 3 shows the inner surface of the pair of cover parts according to the present invention.
4 shows a state in which the reinforcement part is coupled between a pair of cover parts according to the present invention.
5 is a perspective view of a cover part according to the present invention.
6 is a perspective view in which the pad part is coupled to the cover part according to the present invention.
7 is a cross-sectional view and a rear view of a pad part according to the present invention.
8 shows a pad groove according to the first embodiment of the present invention.
9 illustrates a state in which the pad part is inserted into the pad groove according to the first embodiment according to the present invention.
10 shows a pad groove according to a second embodiment of the present invention.
11 illustrates a state in which the pad part is inserted into the pad groove according to the second embodiment of the present invention.
12 shows a pad groove according to a third embodiment of the present invention.
13 is a view showing a state in which the pad part provided with the protrusion according to the present invention is coupled to the pad groove.

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein.

Definitions of terms used below are as follows. The "longitudinal direction" is the x-axis direction with reference to FIG. 2, the "width direction" is the y-axis direction with respect to FIG. 2, and the "vertical direction" is the z-axis direction with respect to FIG. 2 . In addition, "upper" means an upward direction in a vertical direction, and "lower" means a downward direction in a vertical direction.

The EPP packaging material to which the pad according to the present invention is coupled includes a cover part 100 , a reinforcement part 200 , and a pad part 300 .

It is preferable that the cover part 100 is provided as a pair so as to be fitted on the upper part and the lower part of the article to be packaged. In the present invention, the upper cover part 110 and the lower cover part 120 are provided to help understanding of the description, but the upper cover part 110 and the lower cover part 120 may be provided as a pair.

As shown in FIG. 2 , the upper cover part 110 and the lower cover part 120 sandwich the upper and lower parts of the article to be packaged, and the upper cover part 110 and the lower cover part 120 are connected by a string 20 . It is preferable to wrap the upper cover part 110, the lower cover part 120, and the outer surface of the article so as not to be separated from the upper and lower parts of the article. Here, the packaged article may be, for example, an air conditioner, a refrigerator, a washing machine, and a large TV, but is not limited thereto, and may be various electronic devices. In addition, the string 20 includes, for example, a rope (Rope), and is not limited thereto, and a thin braided string used for tying or tying things may be variously applied.

In addition, as shown in FIG. 3 , grooves recessed in a shape corresponding to the upper and lower portions of the packaged article are formed on the inner surfaces of the upper cover unit 110 and the lower cover unit 120 to form the upper cover unit 110 and the lower cover unit. The cover 120 may be coupled to fit the upper and lower portions of the article. In the present invention, the inner surface of the upper cover part 110 and the lower cover part 120 refers to a surface facing the packaged article, and the outer surface refers to a surface opposite to the inner surface.

In addition, the upper cover part 110 and the lower cover part 120 are molded in a hexahedral box shape, and it is preferable that an upper support groove 114 and a lower support groove 124 are provided at each corner on the inner surface. .

The upper support groove 114 and the lower support groove 124 are formed by being depressed from the inner surfaces of the upper cover part 110 and the lower cover part 120 in a 'L' shape bent in the vertical direction, respectively.

Accordingly, both ends of the plurality of reinforcing parts 200 are inserted into the respective upper support grooves 114 and lower support grooves 124 to serve as supports at the outer corners of the packaged article.

As shown in FIG. 4 , each of the reinforcing parts 200 is extended in a vertical direction, and a cross-section is bent in the vertical direction in a 'L' shape.

The plurality of reinforcing parts 200 may be in the form of an angle including a reinforcing material having a "a"-shaped cross section, an equilateral "a"-shaped and an isosceles "a"-shaped reinforcing material, and in the present invention, it is preferable to be made of a paper material.

Accordingly, as shown in FIG. 2 , the upper cover part 110 is fitted to the upper part of the article requiring packaging, the lower cover part 120 is fitted to the lower part, and a plurality of reinforcement parts 200 are fitted in the upper support groove 114 . one end is inserted, and the other end of the reinforcing part 200 is inserted into the lower support groove 124 to package the article.

As described above, this is a packaging process in which both ends of the reinforcing part 200 are inserted into the upper support groove 114 and the lower support groove 124, and the fitting method can be introduced without a separate adhesive to minimize the process, and the conventional There is an effect of reducing the wastage of the material of the packaging material by packaging the entire outer surface of the article to be packaged so as to cover the entire surface with a packaging material such as EPS.

In addition, each of the reinforcing parts 200 can be located at each corner of the outer surface of the packaged article to minimize external impact, and not in a way that covers the outer surface of the conventional packaging article, but rather of the outer surface of the article. Since it is combined in the same shape bent in the vertical direction at the corner, there is an advantage that it can be reused.

Hereinafter, since the upper cover part 110 and the lower cover part 120 have the same configuration formed along the outer surface as a pair, only the upper cover part 110 will be described as an example in order to avoid overlapping descriptions.

Reference is made to FIG. 5 . 5 is a perspective view of the upper cover unit 110 .

The upper cover part 110 is provided with an upper base 111 , an upper guide groove 112 , an upper pad groove 113 , and an upper support groove 114 .

The upper base 111 is provided in a box shape having a hexahedron.

The upper guide groove 112 is preferably formed to extend along the width direction from the outer surface of the upper base 111 . Here, the outer surface of the upper base 111 will be the upper surface of the upper base 111 with reference to FIG. 5 .

The upper guide grooves 112 are formed along the width direction from the outer surface of the upper base 111 as a pair so that only a predetermined thickness is depressed, and the pair of upper guide grooves 112 are formed outside the upper base 111 . It is positioned at a predetermined interval from the side in the longitudinal direction.

The string 20 can be wound along the upper guide groove 112 as described above, and it is possible to solve the problem of sliding on the surface of the packaging material provided with the conventional EPP.

That is, since the string 20 is wound along the pair of upper guide grooves 112 in which only a predetermined thickness is recessed toward the inside, a step difference occurs in the outer surface of the upper cover part 110 and the string 20 is the upper part. It is possible to limit the movement so that it is located only in the guide groove 112 , so there is an effect that can compensate for the disadvantage of the low coefficient of friction of the EPP material.

In this case, it is preferable that the upper pad grooves 113 are provided at both ends of the upper guide grooves 112 .

In detail, the upper pad grooves 113 are a pair, and are formed such that a predetermined thickness is recessed at both ends of the upper guide grooves 112 .

Here, both ends of the upper guide groove 112 are points where they meet the edges extending in the longitudinal direction from the outer surface of the upper base 111 .

The upper pad groove 113 is formed in a 'L'-shaped cross-section in which both surfaces are simultaneously depressed at the edge point extending in the longitudinal direction from the outer surface of the upper base 111, which is both ends of the upper guide groove 112. (See Fig. 5).

Accordingly, the pad part 300 may be male and female coupled to the upper pad groove 113 , and as shown in FIG. 7 , the pad part 300 is formed by being bent in the vertical direction in a 'L' shape in cross section.

In addition, it is preferable that the upper pad groove 113 has a greater thickness in the vertical direction from the outer surface of the upper base 111 toward the inside than the upper guide groove 112 .

Accordingly, when each pad unit 300 is coupled to the pair of upper pad grooves 113 , the upper surface of the pad unit 300 and the lower surface of the upper guide groove 112 may extend in the same line. Here, the lower surface of the upper guide groove 112 means that the upper guide groove 112 is a hollow part formed by depression of a predetermined thickness from the outer surface of the upper base 111, and it is assumed that the hollow part is a space of a hexahedron. is referred to as

Accordingly, when the string 20 wound along the upper guide groove 112 passes through the pad part 300 , there is an advantage in that the step can be uniformly wound without bending.

In addition, the material of the pad part 300 is a heterogeneous material having a material different from that of the cover part 100 , and a paper material is preferable. However, it is not limited to the paper material, and may be a moldable plastic or metal material.

Therefore, when the string 20 is wrapped so as to be wound along the outer surface of the upper cover unit 110 made of EPP material, the point at which the string 20 is bent on the outer surface of the upper cover unit 110, that is, the upper guide The pad part 300 coupled to both ends of the groove 112 is a different material from the upper cover part 110, and the friction coefficient of the upper cover part 110 is low and slippery (EPP material has a low coefficient of friction) When the string is wound, it is difficult to bend) can be compensated.

That is, the upper guide groove 112 has a step from the outer surface of the upper base 111 to limit the movement of the string 20 , and at the same time, each pad part 300 at the point where the string 20 is bent. ), there is an effect that can support the fixing force of the string 20 and the upper base 111 by combining.

In addition, due to the ductility of the EPP material of the packaging material in the work of winding and tying the conventional string along the packaging material, the problem of bending (bending) of the packaging material itself is solved by attaching the pad part 300 to the corner point from the outer surface of the upper base 111. Since it is combined, there is an advantage in that bending can be minimized.

In this case, packaging is absolutely necessary in the process of transporting various electronic devices, and although packaging materials are standardized to have different sizes according to the size of each electronic device, if only a pad groove in which a predetermined thickness is recessed is provided, the pad part of the same shape Through the combination of 300 , it is possible to increase the fixing force with the string by reducing the friction force of the packaging material of the EPP material, so that repeated use of the pad part 300 is possible, thereby generating an environmentally friendly advantage.

Here, the bonding between the upper pad groove 113 and the pad unit 300 can reduce the working time by applying a hot melt method that can be combined within a short time in the form of an adhesive, and detailed description is omitted as it is a known technique. do.

The described pad part 300 and the upper pad groove 113 may be implemented in the first to third embodiments. Since the position and role of the upper pad groove 113 according to the first to third embodiments are the same as those of the above-described upper pad groove 113, only different shapes will be described.

Hereinafter, the first embodiment will be first described with reference to FIGS. 8 and 9 .

The upper pad groove according to the first embodiment is referred to as a first pad groove 1131 .

When viewed from the front, the first pad groove 1131 is preferably provided in a trapezoidal shape with a lower side longer than an upper side. Here, the frontal refers to a case in which the upper pad groove 113 is viewed from the front view based on the perspective view of the upper cover part 110 of FIG. 5 .

In addition, although the cross section of the first pad groove 1131 when viewed from a plan view in the perspective view of the upper base 111 of FIG. 5 is not shown in the drawing, a trapezoidal shape in which the upper side is longer than the lower side is preferable. Here, referring to FIG. 8 , the length of the upper side of the cross section of the first pad groove 1131 is d1, and the length of the lower side is d2, and d2 is longer than d1 (d2 > d1), so the angle α is formed

Therefore, the first pad groove 1131 according to the first embodiment has a trapezoidal cross-section when viewed from the front. This has an improving effect.

In other words, not the upper pad groove 113 of the corresponding shape of the pad part 300, but the surface to which the pad part 300 is coupled has an inclination, so that friction with a part of the pad part 300 is generated. In the fitting method, the fixing force is increased without the need for a separate adhesive for bonding the first pad groove 1131 and the pad part 300 (see FIG. 9 ).

Hereinafter, the second embodiment will be described with reference to FIGS. 10 and 11 .

The upper pad groove according to the second embodiment is referred to as a second pad groove 1132 .

The second pad groove 1132 has the same shape as the above-described upper pad groove 113 , and differs only in length smaller than the length in the longitudinal direction of the pad part 300 .

Accordingly, when the pad part 300 is coupled to the second pad groove 1132 , an interference fit coupling may be applied. Here, the length in the longitudinal direction of the second pad groove 1132 may be formed to be smaller than the length in the longitudinal direction of the pad part 300 by about 1.0 mm to 1.5 mm, which is inhibited by a person having knowledge in the relevant field. It can be appropriately designed to be coupled with a fit. Here, referring to FIG. 11 , the length of the second pad groove 1132 in the longitudinal direction is d3, and the length of the pad part 300 in the longitudinal direction is d4, and d4 is formed to be larger than d3. This makes it possible to assemble with a tight fit.

This can compensate for the fact that, in the molding process, due to the shape of the first pad groove 1131 in which the inclined surface should be generated, the filling rate is lowered toward the pointed end, which may result in a defective rate, and maintenance is easy. And, there is an effect that can improve the fixing force of the second pad groove 1132 and the pad part 300 by the interference fit assembly.

Hereinafter, a third embodiment will be described with reference to FIG. 12 .

The upper pad groove according to the third embodiment is referred to as a third pad groove 1133 .

The third pad groove 1133 has the same shape as the upper pad groove 113 , except that the edge portion 1133A is provided by being corner-processed at the corner portion.

In detail, the edge portion 1133A may be formed along the edge of the third pad groove 1133 so that the angled edge of the third pad groove 1133 has a gentle slope.

Therefore, it is possible to reduce abrasion generated while coupling the pad part 300 to the third pad groove 1133 , and the initial entrance of the third pad groove 1133 to which the pad part 300 is coupled is wide for the operator's assembly process. has the effect of facilitating

In addition, the pad part 300 of the EPP packaging material to which the pad according to the present invention is coupled may be provided with a protrusion 310 .

A plurality of protrusions 310 protrude from both ends of the pad unit 300 in a vertical direction, and are formed to be spaced apart from each other by a predetermined interval along the length direction of the pad unit 300 . Here, the protrusion may be in the shape of a hook, and may have a shape in which the end is gradually pointed.

Accordingly, the upper pad groove 113 to which the pad part 300 is coupled is also preferably provided with the protrusion groove 1130 in a position and shape corresponding to the protrusion part 310 .

Therefore, as shown in FIG. 13 , when the pad part 300 is coupled to the upper pad groove 113 , each of the protrusions 310 is inserted into the plurality of protrusion grooves 1130 , and the pad part 300 without a separate adhesive. and the upper pad groove 113 can be combined, and the fixing force is improved.

As described above, while utilizing the advantages of flexibility, chemical resistance, and repeat buffering properties of EPP as it is, at both ends of the guide groove in which the string is wound, that is, at the corner point on the outer surface of the upper base 111, the cover part 100 and By combining the pad part 300, which is a different material, there is an effect of reducing the friction coefficient of the cover part 100 made of EPP material and maintaining rigidity.

It protects the packaged goods from external impact through such rigidity preservation, and at the same time, it has an eco-friendly effect because it can be reused repeatedly due to the property of EPP that is not easily broken.

In addition, since only the minimum point to protect the goods from impact on the outer surface of the packaged article is packed, costs can be reduced, and the work process is shortened to improve productivity, as well as reduce the amount of packaging boxes that cause environmental pollution can be removed.

When the goods are packed using the EPP packaging material to which the pads described above are combined, and the goods are received and loaded in the warehouse to wait for shipment, it is a two-tiered unloading platform such as a standardized pallet (flat pallet without wheels). Stacking or parallel loading is possible.

Although preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

100: cover part, 110: upper cover part,
111: upper base, 112: upper guide groove,
113: upper pad groove, 1130: protrusion groove,
1131: first pad groove, 1132: second pad groove;
1133: third pad groove, 1133A: edge portion,
120: lower cover part, 121: lower base,
122: lower guide groove, 123: lower pad groove,
124: lower support groove, 200: reinforcement part,
300: pad portion, 310: protrusion.

Claims (10)

A pair of cover parts made of EPP material respectively surrounding the upper and lower portions of the packaging article;
a reinforcing part connecting the pair of cover parts; and
Includes; a plurality of pad parts of the material and the different material of the cover part coupled to the edges of both ends of the cover part;
The cover part,
and a guide groove extending along the width direction of the cover part; and
A string is wrapped along the guide groove and the pad part,
The pad part has a 'L' shape bent in the vertical direction based on the edges of both ends of the cover part,
A pad groove in which a predetermined thickness is recessed to correspond to the shape of the pad part is provided in the cover part;
The combined upper surface of the pad part and the lower surface of the guide groove extend in the same line,
Both ends of the pad part,
Which is provided with a protrusion bent in a direction perpendicular to the pad part
EPP packaging to which the pads are bonded.
delete delete According to claim 1,
The pad groove is
When viewed from the front, the cross section to which the pad part is coupled is provided with a trapezoidal hollow part whose lower side is longer than the upper side
EPP packaging to which the pads are bonded.
According to claim 1,
The pad groove is
When viewed from the front, it is shorter than the length of the pad part in the longitudinal direction to be fitted with a forced fit
EPP packaging to which the pads are bonded.
According to claim 1,
The pad groove is
When viewed from the front, that is provided with an edge processing edge
EPP packaging to which the pads are bonded.
According to claim 1,
The combination of the cover part and the pad part is performed by a hot melt method.
EPP packaging to which the pads are bonded.
delete The method of claim 1,
The protrusion is provided in plurality,
The pad groove is provided with a protrusion groove spaced apart from each other by a predetermined distance in the longitudinal direction for accommodating the protrusion.
EPP packaging to which the pads are bonded.
According to claim 1,
The pad part is one of paper, metal, and plastic
EPP packaging to which the pads are bonded.

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