JP2007276845A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container which has a firm seal structure and maintains all six faces including four side faces, a bottom face and a top face in a plane even if the height of the container is changed. <P>SOLUTION: An item to be stored having different bulk is surely held by using a plurality of creases, and a stepped rest part corresponding to the difference of bulk on the insertion part of a seal structure is provided. By changing the position of the rest part according to the height of the storage space, all the six faces are held in a plane to firmly seal at any height. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packaging container having a variable height structure used for storing and transporting articles or materials.

  Conventionally, as this type of packaging container, for example, there are those described in FIG. 4 and Patent Document 1. FIG. 4 shows a conventional packaging container having a variable height structure. The bottom of the packaging container in FIG. 4 is sealed with an adhesive or an adhesive such as a tape, and a plurality of creases 1a, 1b, 1c, 1d, 2a, 2b, 2c, 2d are provided in the height direction of the packaging container. Have. The folds 1a to 1d are folded for a low-volume storage product, and 2a to 2d are bent for a high-volume storage product, and the mating surfaces are sealed with tape.

FIG. 5 shows an embodiment described in Patent Document 1. By providing a plurality of creases 21a, 21b, 21c, 21d, 22a, 22b, 22c, 22d, 23a, 23b, 23c, and 23d in the height direction of the packaging container, the height of the packaging container is increased according to the volume of the stored items. Then, after the stored item is stored, the insertion portion 24 is inserted into the slit 25 and sealed.
Japanese Patent Laid-Open No. 7-251824 (FIG. 2)

  However, in the conventional packaging container of FIG. 4, since the packaging container does not have a sealing structure, it is necessary to use a tape for sealing. In addition, the conventional packaging container described in Patent Document 1 has a sealing structure, but when a low-volume article is stored, the intermediate crease is crushed inside the packaging container to avoid excess space in the height direction. Because it is sealed, the four flat surfaces of the packaging container cannot be maintained. Therefore, the stored article lacks the retainability, and the stored article is limited to a flexible article, and is not suitable for a stored article such as an electronic device or member that requires a reliable holding during storage and transportation. . Conventional packaging containers have the above problems.

  In order to solve the above-described problems of conventional packaging containers, the present invention maintains all six planes including the bottom and top surfaces of the four side surfaces even when the height of the packaging container is changed, and has a strong sealing structure It aims at providing the packaging container provided with.

  In order to solve the above-mentioned conventional problems, the packaging container of the present invention reliably holds the storage items having different bulks by a plurality of creases, and the stepped pause part corresponding to the difference in the bulks in the insertion part of the sealing structure By changing the position of the resting portion according to each height of the storage space, the six planes can be maintained at any height and can be tightly sealed.

  As described above, according to the packaging container of the present invention, it is possible to obtain a strong seal while maintaining the entire plane without using a tape or the like even when the structure can be adjusted to a plurality of heights.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
1 is a development view of a packaging container according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view of the packaging container. In FIG. 1, the same components as those in FIG.

  The flap 7 extended from the side surface 3 has a sealing insertion part 8 and has resting parts 8a and 8b arranged stepwise at intervals corresponding to the height adjustment dimension of the storage space. A plurality of creases 1e and 2e corresponding to the height adjustment dimension of the packaging container are processed at the end of the flap 10 extended from the side surface 5, and a sealing slit 12 is provided. The flaps 9 and 11 also extend from the side surfaces 4 and 6, respectively.

  In FIG. 2, when the packaging container is used for a storage product having a low bulk, the flaps 9 and 11 are first folded and then the flap 10 is folded by the creases 1a to 1d. The tip of the flap 10 is bent from the crease 1e and is inserted along the opposite side of the storage space. When the flap 7 is finally folded, the sealing insertion portion 8 is inserted into the sealing slit 12 on the flap 10 and is fitted and sealed at the rest portion 8a. Similarly, when used for a bulky storage product, the rest portion 8b on the distal end side of the sealing insertion portion 8 and the sealing slit 12 are fitted and sealed through the same fitting by the creases 2a to 2e. The

At this time, the interval between the creases 1a to 1e and 2a to 2e is X, the distance from the front end of the sealing insertion portion to the adjacent rest portion 8b is Y, the distance between the rest portions 8b and 8a is V, and the rest When the distance from the part 8b to the crease 2a is W, the distance from the crease 1e to the sealing slit 12 is T, and the distance from the sealing slit 12 to the crease 2c is Z, the distance between X, Y and Z With the following relationship, good fitting can be obtained.
V = 2X
T = W
Z ≧ 2X + Y
(Embodiment 2)
FIG. 3 is a perspective view of the packaging container according to Embodiment 2 of the present invention. The description of the same configuration as in FIG. 1 is omitted. In the form of this embodiment, two sets of sealing structures are provided such as the sealing insertion portions 12 and 13 and the sealing slits 14 and 15, and a strong sealing can be obtained even with a relatively large packaging container.

  A packaging container having a variable height structure by a plurality of creases according to the present invention, and a sealing structure by fitting an insertion portion with a stepped rest portion corresponding to each height and a sealing slit, Even if the thickness is changed, a six-plane surface is maintained, and a strong seal can be obtained without using an adhesive, which is useful for storage and transportation of articles or materials of the same type and different in bulk.

Exploded view of the packaging container in Embodiment 1 of the present invention The perspective view of the packaging container in Embodiment 1 of this invention The perspective view of the packaging container in Embodiment 2 of this invention A perspective view of a conventional packaging container Exploded view of conventional packaging container described in Special Fraud Document 1

Explanation of symbols

1a, 1b, 1c, 1d, 1e, 2a, 2b, 2c, 2d, 2e, 21a, 21b, 21c, 21d, 22a, 22b, 22c, 22d crease 3, 4, 5, 6c packaging container side surface 7, 9 10, 11 Flap 8, 13, 14c Sealing insertion part 8a, 8b, 13a, 13b, 14a, 14b Rest part 12, 15, 16c Sealing slit

Claims (2)

Multiple creases,
An insertion part having a staged pause part;
The packaging container provided with the slit corresponding to the said insertion part. The packaging container according to claim 1,
When the packaging container is assembled, the height of the packaging container can be adjusted by the stepwise pause portion.

Images