JPS582743Y2 - Inko style paper container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flat square-shaped inro-type paper container having a removable lid.

Traditionally, this type of paper container has given the image of a luxury product, and requires not only robustness but also airtightness. They were manufactured separately.

Therefore, there are many manufacturing steps, the work is complicated, and a large amount of paper and adhesive is required, which is uneconomical.

As a result of manufacturing the meat and the lid separately in this way, there was a drawback that the adhesion between the meat and the lid was insufficient and looseness was noticeable.

The present invention has the excellent advantage of not only improving the conventional drawbacks mentioned above, but also having an extremely simple manufacturing process.In particular, it has sufficient light-shielding properties for X-ray film, photographic paper, etc. .

That is, first of all, the interior body of the present invention is made of strong cardboard or paperboard, and the interior body has no top plate, and this can be completely tightly covered with the exterior. It has a perforation, an adhesive is applied to the inner surface below the perforation, and light-shielding tape that also serves as reinforcement is affixed to the inner surface of the four corners of the upper and lower edges of the exterior body. The above-mentioned inner body is tightly packaged with an exterior packaging body, and this structure allows it to be made into an inro-type container, which can be reused many times.

The present invention will be explained in more detail with reference to the illustrated embodiments.

FIG. 1 is a developed view of a blank for the interior body of the present invention, and FIG. 2 is a developed view of a blank for the exterior body of the present invention.

Further, FIG. 3 is a perspective view showing the appearance of a completed product of the inro-type paper container of the present invention, and FIG. 4 is a perspective view showing the appearance when the lid is separated from the body and opened.

First, the interior body A will be explained with reference to the exploded view of the blank shown in FIG.
' A front plate 3 and a back plate 4 are provided through the front plate 3.
and folds 5, 5 on each opposite side of the back plate 4.
' through the respective side plates 6, 6' and 7, 7'
, and folding flaps 8, 8' are provided on opposite sides of the bottom plate 1.

Further, cuts are made at right angles between the side plate 7 and the flap 8 and between the side plate 7' and the flap 8', with both ends of the fold line 2' being the vertices so that the folding flaps do not overlap.

The inner body is made of cardboard or paperboard to make the container sturdy.

The assembled state of this inner body is clear from the perspective view of FIG. 5 and FIG. 6 showing the XX sectional view thereof.

Next, a developed view of a blank of an aesthetic exterior body B that completely covers the interior body A will be described.

First of all, it is necessary to provide a front plate 12 and a rear plate 13 on both sides of the side plate 9 via fold lines 10, 11, respectively, with a height equal to the width of the two perforations, as will be described later.

In addition, a flap 1 is inserted through a crease at the opposite side end of the side plate 9.
4.14' and a crease 1 at the leading edge of the front plate 12.
A side plate 16 is connected to the side plate 16 via a fold line 5, and a folding flap 17 is connected to the front edge of the side plate 16 via a fold line 18.

Additionally, flaps 14 are provided at both ends of the side plate 16 via folds.
A flap 19.19' is provided symmetrical to 14'.

The front plate 12 is further connected to upper and lower plates 21 . A bottom plate 21' is provided, and if necessary, fold-in flaps 23, 23' are provided at the leading edges of the bottom plate 21' via fold lines 22, 22', and both left and right ends are cut at right angles.

In addition, there are folds 24 and 24' on the upper and lower edges of the back plate 13, respectively.
The inner plates 25 and 25' of the top and bottom surfaces are provided through the blank, and then the inner plate 27 of the side plate is provided at the leading edge of the back plate 13 via the fold 26. Two perforations 28 and 29 are made, and one notch 30 for a grip is provided in the middle.

Furthermore, in order to provide light-shielding properties to the inner surfaces of the four corners at both the upper and lower edges of the assembled paper container, rectangular shapes are placed on the inner surfaces of the four corners at both the upper and lower edges of the exterior body. The light-shielding tapes a and a' are integrally attached in the horizontal direction.

In order to assemble this exterior body B from blanks, it is important to first strongly bend the folds in advance to create creases.

In particular, folds 10, 11, 15, 18 and 26 are strongly folded to interrupt the four-way continuity of the paper fibers.

This prevents the perforation from elongating when the finished container is pulled away from the perforation, thereby reducing the seal between the body and the lid.

It goes without saying that the perforations may be cuts corresponding to other perforations.

The flaps 17, 23, 23' are then folded inward and pasted.

This state is shown in FIG. The contents of the container are placed in advance in the inner body A.
Then, this interior body A is placed on a blank with folded flaps (see the top view of FIG. 8 and FIG. 9 showing its XX cross section), and at the same time the front plate 12
is mounted on a wall, and the interior body is wrapped around the two parallel sides, followed by the other two parallel sides.

In this way, the packaging container is completed, but its condition is the third one.
Shown in perspective view in the figure.

To open the bag, pull up the knob 30 located in the middle of the perforations and pull apart the perforated band, so that the body and lid can be opened and closed in a lock-like manner as shown in the perspective view of FIG.

Inro-style paper containers and flat square paper containers, in which the body and lid of a conventional paper container are removably fitted together in an inro-style manner, have black paper attached from the outside to the bottom of one open end to provide light-shielding properties to the bottom. Paper containers for holding photographic film, photographic paper, etc. are known, but the present invention simultaneously creates a specific interior body A and a specific exterior body B, each from a single blank. Furthermore, the four corners of both the upper and lower ends of the inro-style paper container are reinforced from the inside with light-shielding tapes a and a', and have a light-shielding structure, and the inner body A is the outer shell. Since the entire surface is covered by body B,
The areas that require light shielding and reinforcement are the upper and lower ends of the four corners mentioned above, and the present invention specifically integrates rectangular light shielding tapes a and a' from the inner side in the horizontal direction only at the areas that require light shielding and reinforcement. It is attached to the

That is, in the present invention, as shown in Fig. 2, the bottom and top portions of the exterior body B are all connected together, so reinforcements are also provided on the inner surface of the four corners at both the upper and lower ends of the exterior body of the assembled paper container. It is easy and simple to attach the light-shielding tapes a and a' to the inner surface of the blank of the exterior body B in advance so that the light-shielding tapes a and a' are adhered, and the container can also be placed on top for reinforcement. The important four corners of the upper and lower ends are protected from the inner side by the light-shielding tapes a and a', so they can withstand long-term use, and even if the four corners are damaged from the outside due to an unexpected accident, the light-shielding tape on the inner side is protected. a.

It has the effect that it is protected by a' and does not lose its original function.

As mentioned above, there is no need for the conventional complexity of manufacturing the body and lid separately, and it is possible to manufacture a strong paper container extremely easily.In addition, it is possible to assemble the inner body, fill the contents, and assemble the outer body. This inro-type paper container has an extremely advantageous structure because it can be mass-produced on a conveyor.

[Brief explanation of the drawing]

Figure 1 is a developed view of the inner body blank of the container of the present invention, Figure 2 is a developed view of the outer body of the container of the present invention, Figure 3 is a perspective view showing the external appearance of the container of the present invention, and Figure 4 is the completed product. Fig. 5 is an external view of the inner body after assembly is completed, Fig. 6 is a cross-sectional view taken along line XX in Fig. 5, and Fig. 7 is an outer case blank. outermost piece 17, 23.23
Figure 8 is a top view showing the finished interior body A placed on the exterior body blank and just before it is wrapped in the exterior body B. Figure 9 is a top view of the Y of Figure 8. -Y sectional view. 1...Bottom plate of the interior body, 2, 2'...
Fold, 3... Front plate, 4... Back plate,
5.5'...Fold, 6.6', 7.7'...
...Side plate, 8...Fold-in flap, 9...
...Bottom plate of the exterior body, 10.11...Folds,
12... Exterior body front plate, 13... Exterior body back plate, 14.14'... Flap, 15
...Fold, 16...Side plate, 17...
...Fold flap, 18...Fold, 19
．． 19'...Flamb, 20.21'...
...Fold, 21...Exterior body bottom plate, 22.22
'...Fold, 23.23'...Flap, 24.24'...Fold, 25,25'...
・Inner surface plate (of bottom plate 21), 26...Fold,
27... Inner plate (side plate), 28.29...
...perforation, 30 ... notch for knob,
A: Interior body, B: Exterior body, a
a'... Light-shielding tape.

Claims (1)

[Scope of utility model registration request] An exterior body B of the same shape is fitted onto the outer periphery of an interior body A made of cardboard or paperboard and has a flat rectangular shape without a top plate, and the opposing surfaces of both sides are adhered. In a paper container provided with two separation perforations 28 and 29 and a tab notch 30, a rectangular reinforcing light-shielding tape a, An inro-style paper container with a structure in which a' is integrally pasted in a horizontal direction.