JP2500563Y2 - Packaging box - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box which is preferably used for packaging individual injection vials.

[0002]

2. Description of the Related Art Injectable vials are individually packaged and shipped in a packaging box made of paperboard. The packaging box used for the individual packaging is usually a rectangular tube with a back plate, left and right side plates connected to both side edges of the back plate, and a front plate connected to one side edge of the side plate. The upper end opening of the body is formed by the lid plate that is connected to the upper edge of the back plate, and the lower end opening of the rectangular tube-shaped body is formed by the bottom plate that is connected to the lower edge of the back plate. The parts are configured to be closed.

In such a packaging box, since the contained vial is in direct contact with the bottom, when a vial having a low impact strength is accommodated, the impact is applied to the bottom due to an impact such as a drop during the distribution process. May damage the contained vial.

Japanese Utility Model Laid-Open No. 56-125820 and 60-78713
The publication discloses a packaging box in which a lid portion is provided with a folding portion exhibiting a cushioning function. In the packaging boxes disclosed in the respective publications, one of two sides orthogonal to each other is continuous with the lower edge of the side plate in the corner portion surrounded by the left and right side plates and the cover plate.
The other has a pair of skirts that are continuous to the side edges of the lid plate, and each hem is folded into two pieces at an edge that divides the angle formed by the two orthogonal sides into two, and the hem overlaps on the back surface of the lid plate. It has been configured.

[0005]

In such a packaging box, the hem portion folded into two and superposed on the back surface of the lid plate exerts a cushioning function. If such a hem is provided at the bottom of the packaging box, the bottom has a cushioning function, and the vial accommodated inside can withstand a shock such as a drop to some extent. However, such a bottom structure does not have a sufficient cushioning function for a vial having a low impact strength and may be damaged by a strong impact.

The present invention solves the above-mentioned problems of the prior art, and an object thereof is to provide a packaging box having an excellent cushioning function at the bottom.

[0007]

The individual packaging box of the present invention comprises a back plate, left and right side plates connected to both side edges of the back plate, and a front plate connected to the side edge of one side plate. A box-shaped body part is configured by and a bottom box connected to the lower edge of the front plate closes the lower end opening of the body part. In a portion surrounded by the bottom plate, each side plate is connected to the lower edge of each side plate, and has a pair of fan-shaped hem parts connected to each side edge of the bottom plate. , The outer peripheral side of each hem is folded along a fan-shaped chord to make each hem triangular, and each hem folded in a triangle is connected to the bottom edge of each side plate and each side edge of the bottom plate. It is characterized in that it is folded in two by a straight line that bisects the corner formed by and is superimposed on the bottom surface. More the above-mentioned object can be achieved.

[0008]

The skirts connected to each of the left and right side plates and the bottom plate are fan-shaped, and the outer peripheral side portion is folded along fan-shaped chords to form a triangular shape. Then, since the hem portion having a triangular shape is folded in two, four hem portions are stacked and stacked on the bottom plate.

[0009]

Embodiments of the present invention will be described below.

The packaging box of the present invention is formed by bending a sheet of paperboard. As shown in FIG. 1, the paperboard includes a rectangular backboard 1, side plates 3a and 3b connected to both side edges of the backboard 1 through folds 2a and 2b, and one side board 3b. It has a front plate 5 connected to the side edge via folds 4. The side plates 3a and 3b and the front plate 5 have the same rectangular shape as the back plate 1. A tongue-shaped adhesive portion 7 is connected to the side plate of the front plate 5 via a fold line 6.

At the upper edge of the back plate 1, a square lid plate 9 having a short side as one side is continuously provided through a fold line 8. At the upper edge of the lid plate 9, a folding plate is formed. A tongue-shaped insertion portion 11 is continuously provided via the eyes 10. Tongue pieces 13a and 13b are connected to the upper edges of the left and right side plates 3a and 3b via folds 12a and 12b, respectively.

A bottom plate 15 having the same square shape as that of the cover plate 9 is connected to the lower edge of the back plate 1 through a fold line 14. The lower edge of the bottom plate 15 has a tongue line through a fold line 16. The insertion portions 17 in the shape of a line are provided in series. Further, fan-shaped hem portions 18a and 18b are provided between the bottom plate 15 and the left and right side plates 3a and 3b, respectively.

Each hem portion 18a and 18b, with respect to the bottom plate 15,
Folds 2 between the back plate 1 and each of the side plates 3a and 3bb
a and 2b are continuous via linearly continuous folds 19a and 19b, and folds 14 between the back plate 1 and the bottom plate 15 with respect to the left and right side plates 3a and 3b. To each other via linearly continuous folds 20a and 20b. Then, along the fan-shaped chords connecting the lower ends of the folds 19a and 19b and the side edges of the folds 20a and 20b, respectively,
Folds 21a and 21b are respectively provided, and further, along each line that bisects the angle formed by each fold 19a and 19b and each fold 20a and 20b, each fold 22a and 2b.
2b are provided respectively.

The packaging box of the present invention using such a paperboard,
It is assembled as follows.

First, the folds 2a, 2b, 4, 6, 19a and 1
Bend along 9b, and bond 7 to the back of the side edge of side plate 3a.
A back plate 1, side plates 3a and 3b, and front plate 5
A rectangular tubular body portion is constituted by. Next, as shown in (a) and (b) of FIG.
And 21b are folded along the folds 21a and 21b, which are fan-shaped chords, so as to overlap with the back surface of the triangular portion inside the hem portions 18a and 18b. When the hem portions 18a and 18b are folded in a triangular shape, the hem portions 18 that are folded in a triangular shape as shown in FIG.
Each hem 18a to fold a and 18b inside the bottom plate 15
While folding 18 and 18b inward along folds 22a and 22b, fold folds 20a and 20b together with fold 14,
Fold each fold 19a and 19b deeper. And
As shown in FIG. 2 (d), folded skirts 18a and 1
The bottom part is completed by inserting the insertion part 17 into the body part in a state where the 8b is superposed on the back surface of the bottom plate 15.

In the lid portion, after the articles to be individually packaged are accommodated in the body portion of the packaging box whose bottom portion is completed, the tongue pieces 13a and 13b and the lid plate 9 are sequentially folded, and finally inserted into the body portion. Insert part 11.

The assembled packaging box of the present invention has a bottom plate 15
The hem portions 18a and 18b overlapped on the back surface of the article are folded into four pieces to have a sufficient thickness, and the restoring force acts as a cushioning function. In contrast, it exerts an excellent cushioning function.

[0018]

[Effect of the Invention] The packaging box of the present invention has a thick fold because the pair of hem portions superposed on the back surface of the bottom plate are folded in a quadruple manner in this way, and the cushioning material is effective in itself. And its resilience is great. Therefore, an excellent shock absorbing function is exerted on the article housed inside, and the damage is effectively prevented.

[Brief description of drawings]

FIG. 1 is a development view showing the structure of an example of a packaging box of the present invention.

2A to 2D are perspective views showing the order of assembling the bottom portion.

[Explanation of symbols]

 1 Back plate 3a, 3b Side plate 5 Front plate 15 Bottom plate 18a, 18b Hem

Claims (1)

(57) [Scope of utility model registration request] 1. A rectangular tubular body portion is constituted by a back plate, left and right side plates connected to both side edges of the back plate, and a front plate connected to one side edge of the back plate. A packaging box configured to close a lower end opening of the body portion by a bottom plate connected to a lower edge of a front plate, each of which is surrounded by each of the left and right side plates and the bottom plate. It has a pair of fan-shaped skirts that are connected to the lower edges of the side plates and are also connected to the side edges of the bottom plate, and the outer peripheral part of each hem is a fan-shaped string. Each hem is folded along with to form a triangle, and each hem folded in a triangle is divided into two by a straight line that divides the corner formed by the bottom edge of each side plate and each side edge of the bottom plate. A packaging box characterized by being folded in and stacked on the bottom.