JP2004224389A - Shock absorbing package, and packaging container using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shock absorbing package and a packaging container using the same that are used for a moving house or a distribution of commodity and the like, can store a plurality of stored items in an easy manner and further can be utilized again after its use. <P>SOLUTION: This shock absorbing wrapper 10 is made so that a long shock absorbing sheet 20 is folded into a bellows-like shape with a predetermined space to have a top side 21 and a bottom side 22, at least a part of both sides of the shock absorbing sheets 20 with adjoining two surfaces is heat sealed at the bottom side 22, the heat seal part 30 is applied as a side surface, the top side 21 is applied as an opening 25 to make a bag-like part 24 in a continuous manner. The packaging container is further made so that the shock absorbing package 10 is installed to a case with the opening 25 being faced upward. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a package and a packaging container suitably used for moving or distribution of goods, and more particularly, for storing and transporting a plurality of articles such as easily breakable dishes, a package comprising a buffer sheet and The present invention relates to a packaging container using the same.
[0002]
[Prior art]
In the case of moving, for example, a package and a packaging container for storing and transporting articles such as easily breakable plates made of glass or ceramics are required. As such a package and a packaging container, it has been conventionally practiced to individually wrap each article using newsprint, a buffer sheet, or the like, and then pack and store them in a cardboard box or the like for storage and transportation. .
[0003]
In addition, it is also known that the above-mentioned buffer sheet is formed continuously in a bag shape in advance.For example, glass, pottery, porcelain and other fragile materials and the like can be stored and transported as a long bubble-shaped bag. A continuous packaging bag made of a bubble-absorbing sheet formed by stacking two buffer sheets and forming a continuous body of bags in which all edges are sealed by heat sealing, wherein the bag has one opening. A packaging bag is disclosed (see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2001-261072
[Problems to be solved by the invention]
However, among the above-mentioned conventional techniques, in the method of individually wrapping each article in newsprint or buffer sheets and packing and transporting them in a cardboard box or the like, it is necessary to store the articles in the cardboard box again after individual packaging. As a result, there is a problem that the packing work is troublesome.
[0006]
Furthermore, individual packaging materials are usually uneconomic because they are disposed of as waste after taking out the contents after use, and it is difficult to recover and reuse the packaging materials, and the burden on the environment is also reduced. There was a problem of being big.
[0007]
Therefore, an object of the present invention is to easily store a plurality of items such as tableware and the like, and to easily mount them on a cardboard box or the like at the time of use, and to reuse them after storage and transportation after use. An object of the present invention is to provide a buffer package that is easy and a packaging container using the same.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the cushioning package according to the present invention is configured such that a long cushioning sheet is folded at predetermined intervals into a bellows shape having a top side and a bottom side, and two sides of the cushioning sheet adjacent to each other at the bottom side. At least a part of the portions is joined, and a bag-like portion having the joining portion as a side and the top side as an opening is formed continuously.
[0009]
According to the buffer package of the present invention, since a plurality of bag-shaped portions are continuously provided by being folded in a bellows shape, articles such as a plurality of dishes can be stored vertically and neatly, and can be efficiently stored. . In addition, since it is folded up in a bellows shape and stood up, it is stable, and it is possible to prevent the package from falling down during the storing operation. Furthermore, since the bag-shaped portion is continuous and integrated as a package, it is easy to collect and reuse after use.
[0010]
In the cushioning package of the present invention, the joint portion is (部) × L to (3/4) × from the bottom side with respect to the height (L) from the bottom side to the top side. Preferably, it is formed up to the height of L. According to this, the upper part of the both sides of the cushioning sheet becomes a non-joined part, whereby the opening can be widened, so that the article can be easily inserted and the accommodation property is improved.
[0011]
Further, in the cushioning package of the present invention, it is preferable that the joining portion is formed so as to gradually narrow from the both side portions toward the bottom side. According to this, for example, even when the accommodated articles are disc-shaped such as a dish, the articles can be easily held on the side of the bag-shaped portion, so that it is possible to prevent the articles from rattling during transfer. Furthermore, when manufacturing the cushioning package, bonding can be reliably performed even if the overlapping positions of the buffer sheets on two adjacent surfaces are slightly shifted from each other, so that bonding failure can be prevented and the yield can be improved.
[0012]
Furthermore, in the cushioning package of the present invention, the cushioning sheet has a two-layer structure in which a planar base film and an embossed film having a large number of convex portions are attached to each other. It is preferable that the foamed cushioning sheet has a three-layer structure composed of a flat top film bonded to the top surface and has convex independent bubbles. According to this, since a large number of convex portions act as closed cells, it is possible to enhance the buffering property and effectively prevent damage to the stored matter.
[0013]
Further, when the buffer sheet has a three-layer structure, the periphery of the convex portion can be made into a buffer space by the planar top film bonded to the top surface of the convex portion, and the buffering property can be further improved. .
[0014]
Further, in the cushioning package of the present invention, it is preferable that the inner surface of the bag-shaped portion is the flat base film or the flat top film. According to this, the surface for accommodating the article is a flat film, so that the article is slippery and the insertability is improved.
[0015]
On the other hand, the packaging container of the present invention is characterized in that the above-mentioned buffer package is attached to a box body such that the opening of a continuously formed bag-shaped portion of the buffer package faces upward. Features.
[0016]
According to this, since the opening of the bag-shaped portion is set in the upper part in advance, it is not necessary to store the product in the cardboard box again after individual packaging, and the product can be efficiently stored and the packing operation can be simplified. .
[0017]
Further, in the packaging container of the present invention, it is preferable that at least a part of a front surface or a back surface of the buffer package in a state of being folded in a bellows shape is joined to an inner surface of the box.
[0018]
According to this, since one end of the buffer package is integrated with the box, it is possible to stably store the articles without the buffer package falling down in the box. Further, after use, the buffer package and the box can be collected as a single unit, so that they can be reused as returnable boxes and the cost of containers can be reduced. Further, when the box is made of a cardboard box or the like, the buffer package and the box can be folded and compact when not in use.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. 1 to 4 show an embodiment of a buffer package according to the present invention and a packaging container using the same.
[0020]
1 is a perspective view of the buffer package, FIG. 2 is a front view of the buffer package, FIG. 3 is a cross-sectional view of a buffer sheet of the buffer package, and FIG. 4 is a box of the buffer package. It is a perspective view showing the state where it attached.
[0021]
As shown in FIG. 1, in the cushioning package 10, a long cushioning sheet 20 is alternately folded at a top 21 and a bottom 22 to form a bellows.
[0022]
The predetermined interval at which the buffer sheet 20 is folded, that is, the height L from the top 21 to the bottom 22 and the width of the apex 21 and the bottom 22 shown in FIG. 2 can be appropriately set according to the size of the storage object. The height L from the top 21 to the bottom 22 is preferably 100 to 600 mm, more preferably 100 to 450 mm, and particularly preferably 120 to 350 mm. The width of the buffer sheet 20, that is, the width of the top 21 and the bottom 22 is preferably 100 to 600 mm, more preferably 150 to 500 mm, and particularly preferably 200 to 400 mm.
[0023]
As the buffer sheet 20, it is preferable to use a cellular buffer sheet having a large number of closed cells, in which an embossed film having at least a large number of projections and a planar base film are laminated, from the viewpoint of excellent buffer performance. . As shown in FIG. 3, as such a cellular cushioning sheet, a cellular cushioning sheet having a three-layer structure or a two-layer structure is preferably used.
[0024]
That is, as shown in FIG. 3A, as the buffer sheet 20, the closed cells 55 are formed by bonding an embossed film 52 having a large number of convex portions 54 formed on a planar base film 51. Further, a three-layer structure in which a space 56 is formed by bonding a planar top film 53 to the top surfaces of a number of convex portions 54 is preferably used.
[0025]
Thus, the buffering effect can be obtained not only by the closed cells 55 but also by the space 56, so that the buffering effect can be further enhanced.
[0026]
Further, as shown in FIG. 3B, a two-layer structure in which an embossed film 52 ′ having a large number of projections 54 ′ formed on a planar base film 51 ′ is bonded to form closed cells 55 ′. May be used.
[0027]
In this case, it is preferable to form the buffer package 10 such that the flat base film 51 ′ is on the inner surface side of the bag-shaped portion 24. As a result, the surface for storing the article becomes a flat film, and the article becomes slippery, so that the insertability is improved.
[0028]
The total thickness of the buffer sheets 20, 20 'is preferably 2 to 14 mm, more preferably 2 to 10 mm, and particularly preferably 2.2 to 4.5 mm.
[0029]
As a material of the base film 51, 51 ′, the embossed film 52, 52 ′, and the top film 53 constituting the above-mentioned foamed buffer sheet, a thermoplastic resin is preferable. For example, polyolefins, polyamides, polyesters, polychlorinated Biodegradable polymers such as vinyl, polyvinylidene chloride, polylactic acid, and polycaprolactone can be exemplified.
[0030]
Polyolefins include low-density polyethylene, ethylene-α-olefin copolymer, high-density polyethylene, polypropylene, homopolymers such as poly-4-methylpentene-1, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, Copolymers such as an ethylene-alkyl acrylate copolymer, an ethylene-phenyl acrylate copolymer, and an ethylene-benzyl acrylate copolymer, and mixtures thereof, and the like.
[0031]
Of the above, low-density polyethylene, high-density polyethylene, polypropylene, ethylene-α-olefin copolymer, and a mixture thereof are preferable because they can be heat-sealed at a low temperature and are low in cost.
[0032]
Further, the base films 51, 51 ', the embossed films 52, 52', and the top film 53 may be made of different materials, but are easy to manufacture such as lamination, and do not require separation during recycling. From this point, it is preferable that all the materials are the same.
[0033]
The thicknesses of the above base film, embossed film and top film can be appropriately set. Further, mechanical properties such as strength, tensile elongation and perforation resistance, and physical properties such as flexibility of the base film, the embossed film and the top film can be appropriately set.
[0034]
The film thickness of the base films 51 and 51 ′ is preferably 15 to 60 μm, and more preferably 20 to 35 μm. Further, the film thickness of the top film 53 is preferably 15 to 60 μm, and more preferably 20 to 45 μm.
[0035]
The shape of the protrusions 54, 54 'of the embossed films 52, 52' can be a cylinder, a polygonal prism, a polygonal pyramid, a truncated cone, a truncated polygonal pyramid, a hemisphere, or the like, and is not particularly limited. Further, a plurality of these shapes may be combined.
[0036]
The height of the protrusions 54, 54 'is preferably 1 to 20 mm, it is preferred that the bottom area is in the range of 0.1~1.5cm ^2. Further, it is preferable that the protrusions 54, 54 'are arranged on the entire surface or a part of the embossed films 52, 52' at intervals of 0.5 to 20 mm. Further, the thickness of the embossed films 52 and 52 'is preferably 30 to 180 m, more preferably 50 to 165 m.
[0037]
In the present invention, the buffer sheet 20 may have a buffering action and may be in the form of a sheet that can be folded in a bellows shape. In addition to the above-mentioned foamed buffer sheet, a foamable buffer sheet or a pulp mold may be used. Is also good. Examples of the foamable buffer sheet include a foamed polyethylene sheet, a foamed polypropylene sheet, a foamed urethane sheet, and a foamed polystyrene sheet.
[0038]
Next, as shown in FIGS. 1 and 2, a pair of tapered heat seal portions 30 are formed as joining portions below both sides of the buffer sheet 20 adjacent to each other on the bottom side 22. As a result, the bag-like portion 24 having the heat seal portion 30 as a side and the top 21 as an opening 25 is continuously formed. In addition, the both sides of the buffer sheet in the present invention include both sides 23 and the vicinity of both sides 23.
[0039]
As shown in FIG. 2, the height H of the heat seal portion 30 is preferably H / L, which is a ratio to the above-mentioned height L, preferably 1/3 to 3/4, more preferably 1/3 to 2/3. Particularly preferably, it is formed from the base 22 side so as to be 2/5 to 2/3. If the H / L is less than 1/3, the space of the bag-like portion 24 becomes small, and the article is likely to fall off after being stored. It is not preferable. If the H / L exceeds 3/4, the spread of the opening 25 becomes small. However, it is not preferable because the insertability of the article deteriorates.
[0040]
Further, it is preferable that the heat seal portion 30 is formed so as to gradually narrow from the seat side 23 toward the bottom 22. Thereby, for example, even when the stored articles are in a disk shape such as a dish, it is difficult to move in the bag-shaped portion 24 and it is possible to prevent rattling during transfer. Furthermore, even when the two cushioning sheets 20 are slightly misaligned when they are superimposed on each other during the production of the cushioning package 10, since the heat sealing portion 30 is provided diagonally, the sealing can be reliably performed. It is possible to prevent a decrease in manufacturing efficiency due to a defect and improve a product yield.
[0041]
Note that, in the present invention, the heat seal portion 30 only needs to be joined to at least a part of both sides of the buffer sheet 20, and is not limited to a linear shape as shown in FIG. May be. Further, the present invention is not limited to a continuous line, and may be provided in a dotted line. Further, the seal portion may not be formed up to the seat side 23 and the bottom side 22.
[0042]
The heat seal portion 30 can be formed by a known heat welding means, and may be a line seal using a linear heater or a surface seal using a planar heater. It is preferable that The heat sealing means may be a normal heat seal or an impulse seal. Further, an extra lug 28 may be cut at the same time as the seal by using a fusing seal by a so-called welder. The heat welding conditions such as temperature and time can be appropriately selected according to the material and thickness of the buffer sheet 20, the heat welding means, and the like.
[0043]
In the present invention, means for joining at least a part of both sides of the buffer sheet 20 on two adjacent surfaces is not necessarily limited to thermal joining, but may be joining with an adhesive or an adhesive tape.
[0044]
A double-sided tape 40 is formed near the top side 21 of the front surface 26 in a state where the buffer package 10 is folded in a bellows shape along the arrow direction in FIG. With the double-sided tape 40, the buffer package 10 can be easily attached to and integrated with a box such as a cardboard box, as described later.
[0045]
The double-sided tape 40 is preferably formed on at least a part of the front surface 26 and / or the back surface 27 in a state where the cushioning package 10 is folded in a bellows shape. More preferably, they are formed near both top sides 21 or in the vicinity thereof.
[0046]
Further, the joining means to the box body is not limited to the double-sided tape, but may be an adhesive such as hot melt, a thermal fusion of the buffer package 10, a joining member such as staples, or the like.
[0047]
FIG. 4 shows a state in which the above-described cushioning package 10 is mounted on a cardboard box 60 which is a box so that the opening 25 of the bag-like portion 24 faces upward, and accommodates a plurality of dishes 70. It is shown. And in this embodiment, the double-sided tape 40 on the surface 26 of the buffer package 10 is joined to the inner surface of the cardboard box 60, whereby the buffer package 10 and the cardboard box 60 are integrated. In the form of a packaging container 80.
[0048]
Note that the box in the present invention is not limited to a cardboard box, and conventionally known containers such as paper, plastic, and metal can be used. However, when not used or after use, the cushioning package and the box are used. A foldable box, such as a cardboard box, is preferable because it can be compacted by folding. Further, the box body can be used by mounting two or more buffer packages according to the contents.
[0049]
As described above, according to the above-described cushioning package 10, since a plurality of bag-shaped portions 24 are continuously provided by being folded in a bellows shape, articles such as a plurality of dishes can be housed vertically and neatly. Can be accommodated efficiently. In addition, since it is folded up in a bellows shape and stood up, it is stable, and it is possible to prevent the package from falling down during the storing operation. Further, since the bag-shaped portions 24 are continuously integrated, disposal and collection can be performed integrally.
[0050]
In addition, according to the packaging container 80 in which the cushioning package 10 is mounted in the cardboard box 60, the opening 25 of the bag-like portion 24 of the cushioning package 10 is set in a pre-set state facing upward. In addition, it is not necessary to store the stored articles in the cardboard box again after individual packaging, so that the packing operation into the cardboard box 60 can be simplified.
[0051]
At this time, since one end of the cushioning package 10 is joined to and integrated with the cardboard box 60, the cushioning package 10 is hard to fall inside the cardboard box 60, and the storage of articles is more stabilized. Can be done. Further, since the other end of the buffer package 10 is not joined to the cardboard box 60, if the number of dishes 70 to be stored is smaller than the number of the bag-like portions 24, the buffer package 10 is removed. A space can be secured in the cardboard box 60 by folding it in a bellows shape, and another article can be stored in this extra space.
[0052]
Furthermore, after use, the buffer package 10 and the cardboard box 60 can be collected as a single unit, so that they can be used not only as a one-way disposable container but also as a reusable returnable container, thereby reducing container costs. Can be.
[0053]
Furthermore, the packaging container 80 can be folded when not in use or after use, with the buffer package 10 and the cardboard box 60 being integrated, so that it can be transported and stored in a compact state before and after use. Then, at the time of use at the work site, the worker can easily assemble, and the packing operation can be performed extremely quickly.
[0054]
FIG. 5 shows another embodiment of the cushioning package of the present invention. In the following description of the embodiment, the same parts as those of the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0055]
This buffer package 15 is different from the above embodiment in that a heat seal 31 is further provided between the heat seal portions 30 and the bag-like portion is divided into 24a and 24b.
[0056]
As described above, by dividing the bag-shaped portion, the shape of the bag-shaped portion can be adjusted to the shape of the stored object. Further, the accommodation efficiency can be further improved by increasing the accommodation locations.
[0057]
【The invention's effect】
As described above, according to the present invention, a plurality of items such as tableware can be easily accommodated, and can be easily attached to a cardboard box or the like at the time of use. Can provide a buffer package that can be easily reused, and a packaging container using the same. Therefore, the present invention can be suitably used, for example, as a reusable packaging container used for moving or merchandise distribution.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a buffer package according to the present invention.
FIG. 2 is a front view of the cushioning package.
FIG. 3 is a cross-sectional view of a buffer sheet of the buffer package, showing (A) a three-layer structure and (B) a two-layer structure.
FIG. 4 is a perspective view showing a state where the buffer package is mounted on a box.
FIG. 5 is a front view showing another embodiment of the cushioning package of the present invention.
[Explanation of symbols]
10, 15 Buffering package 20, 20 'Buffer sheet 21 Top 22 Bottom 23 Sheet side 24, 24a, 24b Bag 25 Opening 26 Surface 27 Back 28 Ears 30, 31 Heat seal 40 Double-sided tape 51 , 51 ′ Base film 52, 52 ′ Embossed film 53 Top film 54 Convex portion 55, 55 ′ Closed cell 56 Space 60 Cardboard box 70 Plate 80 Packaging container

Claims (7)

A long buffer sheet is folded at predetermined intervals in a bellows shape having a top side and a bottom side, and at least a part of both sides of the buffer sheet adjacent to each other at the bottom side is joined, and the joining portion is defined as a side. And a bag-like portion having the top side as an opening formed continuously. The said joining part is formed from height (L) from the said base to the said top to the height of (1/3) * L-(3/4) * L from the said base. 2. The cushioning package according to 1. 3. The cushioning package according to claim 1, wherein the joining portion is formed so as to gradually narrow from the both side portions toward the bottom side. 4. The buffer sheet has a two-layer structure in which a planar base film and an embossed film having a large number of convex portions are laminated, or a planar top film further laminated to a top surface of the convex portion. The cushioning package according to any one of claims 1 to 3, which is a foamable cushioning sheet having convex independent bubbles having a three-layer structure consisting of: The buffer package according to claim 4, wherein an inner surface of the bag-shaped portion is the flat base film or the flat top film. The package for buffer according to any one of claims 1 to 5 is mounted on a box body such that an opening of a continuously formed bag-shaped portion of the package for buffer is upward. Packaging containers. The packaging container according to claim 6, wherein at least a part of a front surface or a back surface of the buffer package in a bellows-like folded state is joined to an inner surface of the box.

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