JPH0315453Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to a packaging container whose dimensions in the height direction are smaller than the width and depth directions, that is, a packaging container that is flat. This relates to the structure of the sealing part that opens and closes the packaging container.

<Prior art> Conventionally, a rectangular parallelepiped packaging container 11 mainly made of corrugated paper is used for packaging VTRs and other relatively small and heavy items.
As shown in the perspective view of FIG. 7, in its six-sided configuration, two of the faces are broadly rectangular, while the other four faces are narrow and rectangular. To take in and take out products, a pair of opening base pieces 12c, 12c and insertion pieces 11c, 11 are connected to each of the four sides with one wide side as an opening.
Close the opening by folding the insertion pieces 11c and 11.
The insertion tongue pieces 11d and 11d of c are connected to the opening base piece 12c,
12c, so-called "Double-shaped lock", which are drilled parallel to each other. It was sealed. However, the 8th
As shown in the developed plan view of the figure, the packaging container 11 has a wide bottom surface and a top surface, each of which has bottom pieces 11b and 1.
1b..., 12d, 12d... and each opening base piece 12
Since the insert pieces 11c and 11c are folded and overlapped, a large area of corrugated paper is required. In the figure, 11a and 12a are side parts, 13 is glue allowance,
15 indicates a horizontal fold, and 16 indicates a vertical fold.

Therefore, in order to save resources, a D-shaped or V-shaped insertion opening similar to that shown in FIG. 7 is provided in either of the side surfaces 11a and 12a where the overlapping portion becomes smaller, and the opening is sealed. There was a packaging container in which the area of corrugated paper used was reduced.

<Problems to be solved by the invention> However, since the above packaging container has a small side surface area, the insertion opening is also small, and the insertion openings overlap, which saves on materials, but the seal is inferior. This has the disadvantage that the seal becomes weak and may be opened inadvertently during storage, transportation, or transport, reducing the reliability of the seal.

The present invention attempts to obtain a robust seal with a configuration that uses fewer materials.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a packaging container whose dimensions in the height direction are smaller than the width and depth directions, and a seal that can be opened and closed on the side of the packaging container. A pair of inner flaps 5, 5 which are foldably connected to the sides in the height direction, and a pair of outer flaps 3, which are bendably connected to the sides in the width or depth direction. 3', and on one of the outer flaps 3, a reverse fold c is formed parallel to the fold a of the outer flap 3 and opposite to the fold a, and this reverse fold c A pair of small tongue pieces 6, 6 formed with a notch e at the top and bent at a reverse fold c are provided, and an insertion part 12 is provided with a notch in the center opposite to the other outer flap 3', The flaps 5, 5 are provided with single-letter-shaped insertion openings 8, 8 into which the small tongue pieces 6, 6 are inserted, respectively, and the other outer flap 3' is provided with an insertion portion 12 formed on the one outer flap 3. A tongue-shaped insertion piece 7 is provided to be inserted into the flap, and the inner flaps 5, 5 are bent, one of the outer flaps 3 is folded from the fold a, and the outer flap 3 is folded along the reverse fold c, and the small tongue piece 6 is inserted. , 6 into the insertion ports 8, 8 of the inner flaps 5, 5, respectively, bend the other outer flap 3' and insert the tongue-shaped insertion piece 7 into the insertion part 12 of the outer flap 3, sealing the side of the container. This is a packaging container characterized by performing the following steps.

<Function> With the above configuration, the sealing portion is formed on the side surface of the container, so that the overlapping portion of the flap for sealing becomes smaller than when the sealing portion is formed on the top surface.

In this case, the inner flap 5, with a reverse fold c,
Sufficient sealing strength can be obtained by fitting the one outer flap 3 and the other outer flap 3' with the tongue pieces 6, 6 inserted into the flap 5 by mutual insertion. In particular, the tongue pieces 6, 6 are bent with a reverse crease c and inserted into the insertion ports 8, 8, so that even if a force is applied in the direction of opening the sealing part, the outer flap 3 and the inner flap 5 .

<Example> Hereinafter, the present invention will be explained in detail with reference to the drawings.

1 to 6 show one embodiment of the present invention, and FIG. 1 is a perspective view showing the completed sealed state of the packaging container 1;
FIG. 2 is a developed plan view thereof, and FIGS. 3 to 6 are overall perspective views showing the sealing order.

In Fig. 2, two wide sides 2, 2 and narrow sides 4, 4, which should constitute a predetermined height, width, and depth by parallel horizontal folds a, a and vertical folds b, b... The main bottom pieces 10, 10 are provided alternately adjacent to each other via the lower fold a of the wide side surfaces 2, 2, and the auxiliary bottom pieces 11, 11 are provided alternately via the lower fold a of the narrow sides 4, 4,
Through the upper fold a of one wide side 2, 2, the flap 3 on the proximal side of the opening, and the upper fold a of the other wide side.
The main insertion outer flap 3' is connected to the main insertion outer flap 3', and the auxiliary bottom piece 1 is connected to the upper fold a of the narrow side surfaces 4, 4.
1 and 11 are arranged in series alternately.

the opening auxiliary inner flap 5, the main bottom piece 10,
Each of the auxiliary bottom pieces 11 has a predetermined rectangular shape, and the opening auxiliary inner flap 5 has a punched hole 8 in the form of a horizontally elongated window hole at a predetermined position, and is folded upward from both ends of the reverse fold c of the opening proximal flap 3. The width of the first tongue-shaped insertion piece 6 bored in the direction of the eye a is equal to the width of the punched hole 8. Further, the recess cut in the approximate center of the tip edge of the proximal flap 3 of the opening is the same as the convex portion cut in the approximate center of the free end (tip edge) of the main insertion outer flap 3'. It is equal to the width of the two-tongue insertion piece 7. The main insertion outer flap 3' is vertically and diagonally cut out approximately at the center of its leading edge, and is divided into a second tongue-shaped insertion piece 7 and opening holding pieces at both ends.

Fold each piece along each fold a, a..., b, b..., glue it to the edge of the narrow side 4 with glue allowance 3, combine each bottom piece, close the bottom, and open the other opening. To store the product and close the opening, fold the auxiliary inner flaps 5, 5 of the opening, respectively, and fold the flap 3 on the proximal side of the opening to close the auxiliary inner flap of the opening, as shown in FIG. 5, 5 single letter shaped insertion port 8,
Insert the first tongue-shaped insertion pieces 6, 6 parallel to 8 into the insertion openings 8, 8 until the reverse fold line c contacts the auxiliary inner flap of the opening, and create a recess from the reverse fold line c to the tip edge. Fold the piece in until it touches the auxiliary inner flap of the opening, and then insert the second tongue-shaped insert piece 7 cut approximately in the center of the tip edge of the main outer flap 3' into the proximal outer flap of the opposing opening. 3. Insert it below the recess.

It should be noted that the present invention is not limited to the above-mentioned configuration, and the bottom pieces may be butted without overlapping each other, or may be stapled together with a stapler without the glue allowance 3. In addition, various shapes and dimensions of the container can be selected.

<Effects of the invention> According to the invention as described above, by forming a sealing part on the side surface of a packaging container whose dimensions in the height direction are smaller than in the width and depth directions, the overlapping part of the flaps of the sealing part can be reduced and the packaging can be carried out. It is possible to reduce container materials. In addition, one of the outer flaps and the inner flap are connected by connecting the small tongue of one of the outer flaps with the insertion opening of the inner flap, and the other outer flap is fitted on top of that, so that the interaction between these two flaps is prevented. As a result, sufficient sealing strength can be maintained, and robust sealing can be performed even though a small area is sealed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the packaging container of the present invention in a sealed state, FIG. 2 is a developed plan view of the same, and FIGS.
The figure is a perspective view showing the order of folding and sealing, FIG. 7 is a perspective view of a conventional sealed state, and FIG. 8 is a developed plan view of the same. DESCRIPTION OF SYMBOLS 1... Packaging container, 3... Opening base side flap, 3'... Main insertion outer flap, 5... Opening auxiliary inner flap, 6... First tongue-shaped insertion piece, 7...
...Second tongue-shaped insertion piece, 8...Punching hole (insertion port), a,
b, d...fold, c...reverse fold, e...notch.

Claims (1)

[Scope of Claim for Utility Model Registration] In a packaging container whose dimensions in the height direction are smaller than in the width and depth directions, a sealing part that can be opened and closed is formed on the side surface of the packaging container, and this sealing part is It is composed of a pair of inner flaps 5, 5 that are bendably connected to the sides, and a pair of outer flaps 3, 3' that are bendably connected to the sides in the width or depth direction, and one of the above-mentioned outer flaps 3 , a reverse fold c is formed parallel to the fold a of the outer flap 3 in the opposite direction to the fold a, and a cut e is formed on the reverse fold c. A pair of bendable tongue pieces 6, 6 are provided, and an insertion portion 12 is provided with a notch in the center opposite to the other outer flap 3', and the inner flaps 5, 5 are provided with the small tongue pieces 6, 6, respectively. The other outer flap 3' is provided with a tongue-shaped insertion piece 7 that is inserted into the insertion part 12 formed on the one outer flap 3, and the inner flap 5, 5, fold one of the outer flaps 3 from the crease a, and while folding this outer flap 3 along the reverse crease c, insert the tongue pieces 6, 6 into the insertion openings 8, 5 of the inner flaps 5, 5. 8, the other outer flap 3' is bent, and the tongue-shaped insert piece 7 is inserted into the insertion portion 12 of the outer flap 3 to seal the side surface of the container.