JP2011031908A - Packing box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the weight of the entire packing box and, in addition, improve its shock-absorbing and holding abilities with respect to an article accommodated therein. <P>SOLUTION: A packing box 1 having an accommodation part 2 for the article includes a box body 3 that is formed entirely with a bubble sheet 5. The box body 3 includes a bottom part 18 that serves as a bottom surface of the accommodation part 2, side wall parts 19 and 20 laterally surrounding the accommodation part 2, and an inner partition part 21 for partitioning the accommodation part 2 into a plurality of sections. The inner partition part 21 includes integral middle partitions 22 that are integral with the box body 3 and formed by being bent so as to stand from the bottom part 18, and a separate inner partition 23 that is separate from the box body 3 and is arranged along the axis orthogonal to the integral middle partitions 22. The separate inner partition 23 laterally penetrates, in an elastically deformed state, halls 28 formed in the integral inner partitions 22, and is unfolded after the penetration so as to engage with the integral inner partitions 22. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a packaging box provided with a box body made of a bubble sheet and a partition.

  2. Description of the Related Art A packaging box is known that can divide a housing portion into a plurality of partitions with a partition and can accommodate a plurality of articles in an orderly manner. In particular, a packaging box having a partition made of a bubble sheet is imparted with buffering properties, and thus is useful as a packaging container for transporting fruits, ceramics, glass products, precision parts, and the like that are vulnerable to impact.

  For example, the partition shown in Patent Document 1 includes a plurality of strip pieces each having a bubble sheet attached to both sides and appropriately formed with vertical cut lines. It is configured by forming a cross-beam shape so that the lead wires engage with each other.

  Further, the partition shown in Patent Document 2 is also used as an underlaying material that forms the bottom surface of the housing portion, and has at least one rectangular cut-out portion in the expanded state of the bubble sheet, and has a height of the partition. At least one pair of easy-foldable linear bends parallel to each other at substantially equal intervals is formed by crossing at the cutouts, and there are a plurality of inner regions of each set of bends. This is formed as a partition forming portion that can be bent upright with a substantially convex cross section leaving the bottom surface portion of the housing portion.

Utility Model Registration No. 3084323 JP 2004-91006 A

  However, the partition shown in Patent Document 1 and Patent Document 2 is separate from the box body of the packaging box, and is used by being incorporated in a box body such as a separately formed container. In addition to being heavy, there is a possibility that the buffering property may be lowered depending on the material of the box body.

  Moreover, since the partition shown by patent document 1 is comprised by assembling several strip pieces in a cross-beam shape so that a cut line may mutually engage, there are many number of parts, and an assembly is troublesome. In addition to this, there is a problem that the strip pieces are easily detached in the vertical direction.

  On the other hand, since the partition shown in Patent Document 2 is bent and formed in an upright shape on the underlay material, the number of parts is small and assembly is easy, but the adjacent partition is in a discontinuous state. There is a problem that the holdability of the finished article is inferior.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a packaging box that can not only reduce the weight of the entire packaging box but also improve the buffering and holding properties of the contained articles. .

  In order to achieve the above object, the packaging box of the present invention is a packaging box having a container for an article, the box body formed entirely of a bubble sheet, a bottom part forming the bottom surface of the container, and the container An integrated partition that includes a side wall portion that surrounds the side of the housing and a partition portion that divides the housing portion into a plurality of portions, and the partition portion is integrated with the box body and is bent upright on the bottom portion. And a separate body partition disposed in a direction intersecting with the integral partition, and the separate partition is located on the side of the hole of the integral partition in a deformed state. It penetrates from one side, is developed after penetration, and is configured to engage with the integral partition.

  As described above, according to the present invention, not only the weight of the entire packaging box can be reduced, but also the buffering property and holding property of the stored article can be improved.

It is a schematic perspective view of the packaging box which concerns on embodiment of this invention. (A) is a schematic sectional drawing of the three-layer foam sheet which is a forming material of the packaging box which concerns on one Embodiment of this invention, (b) is a forming material of the packaging box which concerns on other embodiment of this invention It is a schematic sectional drawing of the state which bent the two-layer foam sheet which is. It is an expanded view which shows the cover of the packaging box which concerns on embodiment of this invention. It is an expanded view which shows the box main body of the packaging box which concerns on embodiment of this invention. It is an expanded view which shows the separate partition of the packaging box which concerns on embodiment of this invention. (A) is a perspective view which shows the separate partition of the packaging box which concerns on embodiment of this invention, (b) is a perspective view of the separate partition which shows the bending deformation state at the time of penetration. It is a schematic perspective view which shows the assembly procedure (integral partition assembly process) of the packaging box which concerns on embodiment of this invention. It is a schematic perspective view which shows the assembly procedure (separate body partition penetration process) of the packaging box which concerns on embodiment of this invention. It is a schematic perspective view which shows the assembly procedure (separate body partition expansion | deployment process) of the packaging box which concerns on embodiment of this invention. It is a schematic perspective view which shows the assembly procedure (side wall part assembly process) of the packaging box which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a packaging box 1 according to an embodiment of the present invention is fitted from above into a box body 3 having an article storage part 2, a partition part 21 that partitions the storage part 2, and the box body 3. The lid 4 covers the upper opening of the box body 3.

  The box body 3, the partition part 21, and the lid 4 are entirely formed of a bubble sheet 5. For example, by processing a predetermined portion of the flat plate-like bubble sheet 5 so that it can be bent, and cutting out by a punching process or the like so as to have a shape as shown in FIGS. The main body 3, the partition part 21, and the lid 4 are formed.

As shown in FIG. 2 (a), the bubble sheet 5 forming the box body 3, the partition portion 21 and the lid 4 includes a cap film 7 having a large number of protrusions 6 bulging in a hollow shape, and protrusions 6 It is preferable to use a three-layer cell sheet comprising a back film 8 laminated on the opening side and a liner film 9 laminated on the top side of the protrusion 6, but as a two-layer cell sheet from which the liner film 9 is omitted Also good.
In particular, in this embodiment, since the bubble sheet 5 is laminated in a folded shape to form each part of the packaging box 1, the side on which the liner film 9 is omitted is folded as shown in FIG. If it is inside, it can avoid easily that the processus | protrusion 6 of the cap film 7 is exposed outside.

The cap film 7, the back film 8, and the liner film 9 constituting the bubble sheet 5 can be molded using, for example, a synthetic resin of polyethylene: 10 to 30% by weight and polypropylene: 90 to 70% by weight. The rigidity and flexibility of the bubble sheet 5 can be arbitrarily adjusted by changing the type and composition of the synthetic resin used for forming the films 7 to 9.
The bubble sheet 5 of the present embodiment has such a rigidity that the box shape is maintained after assembly, can be easily bent and deformed, and has no crease left when restored from the bent deformation state. The kind and composition of the synthetic resin used for forming the films 7 to 9 are selected so as to have flexibility.
As the bubble sheet 5, a three-layer bubble sheet or a two-layer bubble sheet may be used as it is, but other functional films or decorative films are further provided on the front and back of the three-layer bubble sheet or the two-layer bubble sheet. You may laminate.

  Moreover, the bubble sheet 5 can ensure favorable bendability only by forming the seal line L. The seal line L can be easily formed by using a heat seal device such as a band sealer or an impulse sealer. For example, the back layer 8 and the liner film 9 are formed by crushing a three-layer bubble sheet in a line while applying heat. The seal line L is formed by heat sealing. And in the site | part in which such a seal line L was formed, the bubble sheet 5 along the seal line L can be bent.

  As shown in FIGS. 1 and 3, the lid 4 includes a lid upper portion 10 that covers an upper opening of the box body 3, and lid side portions 11 and 12 that extend downward from four sides of the lid upper portion 10.

  In the unfolded state shown in FIG. 3, one lid side portion 11 is continuous from the long side of the lid upper portion 10 through the seal line L <b> 1 and continuous from the distal end portion of the outer surface portion 13 through the seal line L <b> 2. The inner side surface portion 14 and the connecting portion 15 continuing from both side end portions of the outer side surface portion 13 via the seal line L3. The seal line L1 is bent so that the outer side surface portion 13 stands from the lid upper portion 10, and the seal line The lid side portion 11 is assembled by folding L2 and folding the inner side surface portion 14 inside the outer side surface portion 13 in a superposed manner.

  The other lid side portion 12 includes an outer surface portion 16 that continues from the short side of the lid upper portion 10 via the seal line L4, and an inner surface portion 17 that continues from the tip end portion of the outer surface portion 16 via the seal line L5. The seal side L4 is bent and the outer side surface portion 16 is erected from the lid upper portion 10, and further, the seal side line L5 is bent and the inner side surface portion 17 is folded back inside the outer side surface portion 16 so that the lid side portion 12 is assembled. It is done. At this time, the lid side portion 11 and the lid side portion 12 are integrally connected by sandwiching the connecting portion 15 of the lid side portion 11 between the inner side surface portion 17 and the outer side surface portion 16 as a core material.

As shown in FIGS. 1, 4, and 5, the box body 3 includes a bottom portion 18 that forms the bottom surface of the housing portion 2, side wall portions 19 and 20 that surround the side of the housing portion 2, and a plurality of housing portions 2. A partition portion 21 that is partitioned, and the partition portion 21 is integral with the box body 3 and is separate from the box body 3 and the integral partition 22 that is bent upright from the bottom portion 18; It is comprised from the separate inner partition 23 arrange | positioned in the direction which cross | intersects the integral partition 22.
In this embodiment, the number of the integral partitions 22 is “2” and the number of the separate partitions 23 is “1”. However, the number of the integral partitions 22 and the separate partitions 23 depends on the articles to be accommodated. It can be set as desired.

In the unfolded state shown in FIG. 4, the bottom portion 18 is divided into three bottom surface portions 18 a, and each is connected via an integral partition 22.
Each integral partition 22 includes two side surface portions 24 that are continuous via a seal line L6, and a connecting portion 25 that is continuous from both ends of each side surface portion 24 via a seal line L7. It is connected to the long side of the bottom face part 18a via L8. In other words, each integral partition 22 is formed to be bent upright at the bottom 18 by overlapping the two side portions 24 with the seal line L6 folded in a mountain, the seal line L8 taken in a valley fold (see FIG. 7). .

  In the developed view shown in FIG. 5, the separate partition 23 includes two side surface portions 26 that are continuous via the seal line L9 and a connecting portion 27 that is continuous from both side ends of the side surface portions 26 via the seal line L10. The separate partition 23 is formed by overlapping the two side surfaces 26 with the seal line L9 as a mountain fold (see FIG. 6A).

  The separate partition 23 is penetrated from the side through a hole 28 formed in the integral partition 22 so as to face up and down. At this time, the separate partition 23 is bent and deformed as shown in FIG. 6B, and in this state, the separate partition 23 is penetrated from the side of the hole 28 of the integral partition 22 (see FIG. 8). That is, the height of the separate partition 23 is larger than the vertical width of the hole 28 formed in the integral partition 22, so that the upper and lower ends of the separate partition 23 are bent and deformed so as to be folded. It penetrates through the hole 28 of the middle partition 22.

The separate partition 23 is deployed after penetrating and engaged with the integral partition 22 (see FIG. 9). That is, cut portions 29 are formed at both upper and lower end portions of the separate partition 23, and the separate partition 23 is passed through the hole 28 of the integral partition 22 and then expanded in the vertical direction. At this time, the notch 29 is engaged with the integral partition 22. Thereby, the integral partition 22 and the separate partition 23 are integrally connected.
In addition, since the bubble sheet 5 which is the material of the separate partition 23 is flexible so that no crease remains even if it is bent and deformed as described above, even if it is folded or unfolded, depending on the crease, There is no loss of aesthetics.

The separate partition 23 of the present embodiment has the same height as the integral partition 22. In this way, the upper and lower edges of the inner partition portion 21 can be aligned while the separate inner partition 23 is assembled to the hole 28 of the integrated inner partition 22 in a penetrating manner from the side.
The separate partition 23 does not have to be the same height as the integral partition 22. For example, when the height of the separate partition 23 is made lower than that of the integral partition 22 and penetrates the hole 28 of the integral partition 22, one of the upper and lower ends of the separate partition 23 is folded. It is possible to penetrate through the hole 28 of the integrated partition 22 in a state of being bent and deformed.

  In the unfolded state shown in FIG. 4, one side wall portion 19 includes an outer surface portion 30 that continues from the long side of the bottom surface portion 18 a located at the outer end via the seal line L <b> 11, and a seal line L <b> 12 from the distal end portion of the outer surface portion 30. A pair of inner side surface portions 31 that are continuous via the outer peripheral surface portion 30 and a connecting portion 32 that is continuous from both side end portions of the outer side surface portion 30 via the seal line L13. Further, the side wall portion 19 is assembled by folding the seal line L12 and folding the inner side surface portion 31 inside the outer surface 30 in a superposed manner. Further, the connecting portions 27 formed at both ends of the separate partition 23 can be developed along the side wall portion 19 by bending the seal line L10, and are separately provided between the inner side surface portion 31 and the outer side surface portion 30. By sandwiching the connecting portion 27 of the body partition 23 as a core material, the side wall 19 and the separate body partition 23 are integrally connected (see FIG. 10).

  In the unfolded state shown in FIG. 4, the other side wall portion 20 is continuous from the short side of each bottom surface portion 18a via the seal line L14 and continuously from the distal end portion of the outer surface portion 33 via the seal line L15. The inner side surface portion 34 is bent, the seal line L14 is bent and the outer side surface portion 33 is raised from the bottom surface portion 18a, and the seal line L15 is further bent and the inner side surface portion 34 is folded inside the outer side surface 33 in a superposed manner. The side wall part 20 is assembled. At this time, by sandwiching the connecting portion 25 of the integrated partition 22 and the connecting portion 32 of the side wall portion 19 between the inner side surface portion 31 and the outer side surface portion 30 as the core material, the side wall portion 20 becomes the integrated middle partition 22 or the side wall portion 19. It is connected integrally with.

  In the present embodiment, as described above, the upper edges of the side wall parts 19 and 20 and the partition part 21 are formed by the folded part of the bubble sheet 5. If it does in this way, the upper edge of the side wall parts 19 and 20 and the partition part 21 will become smooth, and an accommodation article will not be damaged.

  Below, the assembly procedure of the packaging box 1 (box main body 3) which concerns on embodiment of this invention is demonstrated with reference to FIGS.

  FIG. 7 is a schematic perspective view showing a packaging box assembly procedure (integral partition assembly process) according to the embodiment of the present invention, and FIG. 8 is an assembly procedure (separate partition) of the packaging box according to the embodiment of the present invention. FIG. 9 is a schematic perspective view showing an assembly procedure of a packaging box according to an embodiment of the present invention (separate separate partition unfolding process), and FIG. 10 is related to the embodiment of the present invention. It is a schematic perspective view which shows the assembly procedure (side wall part assembly process) of a packaging box.

  When assembling the box body 3 of the packaging box 1, first, the integral partition 22 is formed as shown in FIG. The integral partition 22 can be bent and formed upright on the bottom 18 by overlapping the two side surfaces 24 with the seal line L6 folded in a mountain and the seal line L8 in a valley fold.

  Next, as shown in FIG. 8, the separate partition 23 is assembled to the integral partition 22 in a penetrating manner. The separate partition 23 is formed by overlapping the two side surfaces 26 with the seal line L9 as a mountain fold. Further, when the separate partition 23 is penetrated from the side into the hole 28 of the integral partition 22, the upper and lower ends thereof are bent and deformed so as to be folded and then penetrated into the hole 28 of the integral partition 22.

  Next, as shown in FIG. 9, the separate partition 23 that penetrates the hole 28 of the integral partition 22 is developed. At this time, by engaging the notch 29 of the separate partition 23 with the integral partition 22, the integral partition 22 and the separate partition 23 are integrally connected.

  Next, as shown in FIG. 10, the side wall parts 19 and 20 are formed. The side wall portion 19 can be formed by folding the seal line L11 to raise the outer surface portion 30 from the bottom surface portion 18a, and further bending the seal line L12 to fold the inner surface portion 31 inside the outer surface 30 in a superposed manner. it can. At this time, the side wall 19 and the separate partition 23 are integrally connected by sandwiching the connecting portion 27 of the separate partition 23 as a core material between the inner surface portion 31 and the outer surface portion 30.

  Further, the side wall portion 20 is formed by bending the seal line L14 to erect the outer surface portion 33 from the bottom surface portion 18a, and further bending the seal line L15 to fold the inner surface portion 34 inside the outer surface 33 in a superposed manner. be able to. At this time, by sandwiching the connecting portion 25 of the integrated partition 22 and the connecting portion 32 of the side wall portion 19 between the inner side surface portion 31 and the outer side surface portion 30 as the core material, the side wall portion 20 becomes the integrated middle partition 22 or the side wall portion 19. It is connected integrally with.

  According to the embodiment of the present invention configured as described above, it is a packaging box 1 having an article storage unit 2, and the bottom of the storage unit 2 is attached to a box body 3 that is entirely formed of a bubble sheet 5. Since the bottom portion 18 formed, the side wall portions 19 and 20 surrounding the side of the housing portion 2 and the partition portion 21 that partitions the housing portion 2 into a plurality of parts, not only can the weight of the entire packaging box be reduced, but also buffering properties. Can be improved.

  Further, the partition portion 21 is integral with the box body 3, and is integrated with the integral partition 22 that is bent upright at the bottom 18, and is separate from the box body 3, in a direction intersecting with the integral partition 22. The separate partition 23 is provided, and the separate partition 23 is penetrated from the side through the hole 28 of the integrated partition 22 in a deformed state, and is deployed after the penetration to engage with the integrated partition 22. Therefore, the integrated partition 22 and the separate partition 23 can be integrally connected to improve the holdability of the stored article. In addition, the bubble sheet 5 which is a material of the separate partition 23 has such flexibility that no crease remains even if it is bent and deformed.

  In addition, since the height of the separate partition 23 is the same as the height of the integrated partition 22, the separate partition 23 is assembled to the hole 28 of the integrated partition 22 in a penetrating manner from the side. The upper edge and the lower edge of the partition part 21 can be aligned.

  Moreover, since the upper edge of the side wall parts 19 and 20 and the partition part 21 is formed in the folding | turning part of the bubble sheet 5, the upper edge of the side wall parts 19 and 20 and the partition part 21 becomes smooth, and accommodation goods are carried out. It will not hurt.

  Further, since both end portions of the separate partition can be developed along the side wall portion 19 and used as the core material of the side wall portion 19, the side wall portion 19 and the separate partition 23 are integrally connected, and the box body 3 The strength of can be increased.

As mentioned above, although the preferable embodiment was shown and demonstrated about the container of this invention, this invention is not limited only to embodiment mentioned above, A various change implementation is possible within the scope of the present invention. Needless to say.
For example, in the said embodiment, although the connection part 27 used as the core material of the side wall part 19 is formed in the both ends of the separate partition 23, when the intensity | strength calculated | required by the box main body 3 is low, The connecting portion 27 may be formed only at one end portion of the partition 23, or the connecting portion 27 may be omitted. Thereby, material can be reduced and manufacturing cost can be held down.
In addition, as shown by the imaginary line in FIG. 10, if the bottom laminated portion 18 ′ is formed on the distal end side of the side wall portion 20, the bubble sheet 5 at the bottom of the box body 3 can be doubled. The buffering property can be further enhanced.
Furthermore, in the packaging box of the present invention, the lid 4 is not necessarily required, and can be omitted depending on the type, use, etc. of the articles to be stored. Furthermore, even when a lid is required, the material is not limited to the foam sheet in the above embodiment, and a material different from the foam sheet such as cardboard may be used.

  INDUSTRIAL APPLICABILITY The present invention can be used in a packaging box having a partition made of a bubble sheet, and is particularly useful as a packaging container when transporting fruits, ceramics, glass products, precision parts, etc. that are vulnerable to impact.

DESCRIPTION OF SYMBOLS 1 Packaging box 2 Storage part 3 Box main body 4 Cover 5 Bubble sheet 18 Bottom part 19 Side wall part 20 Side wall part 21 Middle partition part 27 Connection part 28 Hole L Seal line

Claims (4)

A packaging box having a container for articles,
In the box body that is entirely formed of a bubble sheet,
A bottom portion forming a bottom surface of the housing portion;
A side wall surrounding the side of the housing part;
A partition part for partitioning the housing part into a plurality of parts;
The partition part is
An integral partition that is integral with the box body and is bent upright at the bottom;
The box body is a separate body, and comprises a separate body partition arranged in a direction intersecting with the integral partition,
The separate partition is
A packaging box, wherein the packaging box is penetrated from a side through the hole of the integral partition in a bending deformation state and is expanded after the penetration to engage with the integral partition.   The packaging box according to claim 1, wherein a height of the separate partition is the same as a height of the integral partition.   The packaging box of Claim 1 or 2 which formed the upper edge of the said side wall part and the said partition part by the folding | turning part of the said bubble sheet.   The packaging box according to any one of claims 1 to 3, wherein one end portion or both end portions of the separate partition can be developed along the side wall portion and used as a core material of the side wall portion.

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