JPS5911072Y2 - Paper box with opening mechanism - Google Patents

Description

[Detailed description of the invention] The present invention is an improved opening mechanism that is particularly easy to open, has a good appearance after opening, and is also easy to close. The purpose is to provide paper boxes with equipment.

Conventionally, paper boxes with a structure that can be opened by separating into strips are disclosed in, for example, Japanese Utility Model Publication No. 41-13340 (packing case opening device) and Japanese Utility Model Publication No. 51-38576 (
Paper boxes with an opening mechanism) are known.

Recently, paper boxes that utilize these opening mechanisms have been widely used as containers for snack foods, detergents, and the like.

In particular, paper boxes used for snacks, biscuits, etc. are lined with aluminum foil to meet the requirements of moisture proofing and quality preservation of the stored items.

It is true that by adopting a dual structure of an outer container and an inner aluminum foil, it is possible to almost achieve the above-mentioned purpose, but the problem is that there are inconveniences when and after opening the container.

In other words, when the strip part to be separated is opened, the crown part of the sealed interior material made of a material such as aluminum foil will be exposed, and the consumer will then be able to pull the adhesive part outward. Currently, the desired amount of contents is taken out by tearing it off to open the part.

However, since it is necessary to pull the adhesive part with too much force, some of the contents may scatter when the package is opened, or it may be difficult for young children, the elderly, and the infirm to handle it. Sometimes it happened.

In addition, in the case of regular paper boxes, no consideration is given to how to close the lid after opening, so the contents may be accidentally spilled or moisture may be introduced, resulting in the remaining contents often being wasted. It also looked bad.

The present invention was developed as a result of studying and researching the drawbacks inherent in the conventional paper boxes equipped with an opening mechanism as described above, and as a result, it was possible to complete the invention which brings about the effects as described below.

First, the structure of the present invention will be explained with reference to the drawings. Figure 1 is a developed view to explain the position of the interior material relative to the exterior material, Figure 2 is a plan view of the interior material, and Figure 3 a is a cylinder. An explanatory diagram showing the positional relationship in which the interior material shaped into a shape is attached to the exterior material, Figure b is an explanatory diagram showing the state immediately before assembly is completed, Figure 4 is a diagram of the completed assembly, and Figure 5 a is an unpacked diagram. A perspective view showing a part of the mechanism, FIG. FIG. 8 is an explanatory diagram showing another example of the position where the exterior material is pasted in the band-shaped opening part.

A is a rectangular exterior material, which has side walls 3a and 3b.
It consists of a front part 1 and a back part 2 with a fold 4a in between.
, 4b, a lid part 5 and a bottom part 6 are connected to the front part 1 and the back part 2, and tongue pieces 7a and 7b are connected to the side walls 3a and 3b, respectively.

8 is an adhesive piece attached to the side end of the side wall portion 3b.

Reference numeral 9 denotes a band-shaped opening part with a knob 10 attached to one end and a cutting line 11 arranged oppositely so that it can be cut to an arbitrary width;
It is formed in the area around which the side body of the paper box is wound, and its setting position is preferably slightly above the central area, as shown in the illustrated example.

B is an interior material, and materials such as cellophane, PVA, and polyester are used, but it is preferable to use a plastic film with tear direction, and uniaxially oriented polypropylene or, as a particularly preferable example, uniaxially oriented high-density polyethylene. use

When used, a single layer of plastic film with tear directionality may be used, but when considering moisture resistance, content resistance, bondability with the exterior body, etc., it is recommended to laminate the above plastic film and aluminum foil material. It is preferable to provide a synthetic resin layer on one side of the aluminum foil material and, if necessary, to provide a thin paper layer on the upper surface of the plastic film.

Further, along one side edge of the interior material B, a sawtooth-shaped cut guide 12 is attached, for example.

As described above, when thin paper is used, the lamination effect with the exterior material A becomes even stronger, and lamination becomes extremely easy.

In FIGS. 1 and 2, the portions with halftone dot patterns m and n on the exterior material A and the interior material B, respectively, illustrate the setting positions of the mounting agent, adhesive, or heat-sealing portion.

Further, the correlation between the exterior material A and the interior material B shown in FIG. 1 represents the positional relationship in terms of joining of the two.

In addition, due to the structure of the present invention, it is also possible to add an inverted Y-shaped fold 13 to the side wall portion to make it easier to cover the lid after opening, and the cut guide 12 of the interior material B may be arranged as shown in FIG. It is also preferable to change it as follows.

Furthermore, the interior material B is provided on the back surface of the exterior material A so that the extra end portion 14 is provided at the side end of the interior material B, and the edge of the extra end portion 14 is located near the knob 10 on the exterior material A. It is appropriate that the seal be fixed so that it can be easily removed at the same time as the band-shaped opening portion 9 is cut.

Next, to explain the assembly procedure of the present invention, as shown in Fig.
By using Thereafter, it is set as shown in FIG. 3a, and a desired paper box is assembled with the exterior body A during the drawing process.

During this box manufacturing, the facing side edges of the interior material B are
It is not a so-called gassho paste (face-to-face state), but a known flat paste (envelope paste) type, and one end is left free in the longitudinal direction as the remaining end 14 in case of tearing. It is suitable in this sense.

During the box manufacturing process, the desired contents (not shown) may be placed into the opening from a desired direction, and then the box may be sealed using a known sealing method.

Therefore, according to the present invention having the above structure, the following effects are brought about.

That is, according to the present invention, firstly, as shown in FIGS. 5a and 5b, if the band-shaped unsealing part 9 is cut off using the cutout line 11 and the knob 10, it will come into close contact with the unsealing part 9 as it is opened. Because of this relationship, the interior material B containing the contents can be opened at the same time, and the contents can be taken out immediately, which is convenient.

Second, since the cut guide 12 is provided at one side end of the interior material B in a sawtooth shape or another modified example as shown in FIG. This is what will be done.

Third, according to the present invention, the interior material is opened at the same time as the exterior material is opened, and when looking at the cut part, the appearance is good, and it is also desirable to temporarily close the lid when eating. If so, the upper part corresponding to the separated lid and the lower part corresponding to the body may be overlapped, and more preferably, the upper part corresponding to the separated lid and the lower part corresponding to the body may be overlapped, and more preferably, the above-mentioned body ( body)
If the upper part of the lid is compressed, it will be easier to close the lid.

As mentioned above, the structure of the present invention is extremely simple and easy to handle and operate. Moreover, it is highly practical as a container for foods, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of a paper box equipped with an opening mechanism according to the present invention, FIG. 1 is a developed view for explaining the setting position of the interior material with respect to the exterior material, FIG. 2 is a plan view of the interior material, and FIG. Figure 3a is an explanatory diagram showing the positional relationship of an interior material that can be shaped into a cylindrical shape pasted on an exterior material, and Figure 3b is an explanatory diagram showing the state immediately before assembly is completed.
Fig. 4 is a fully assembled view, Fig. 5a is a perspective view showing a part of the opening mechanism, Fig. 5b is an explanatory view showing the unsealing process in progress, Fig. 6a,
l) is an explanatory diagram showing another embodiment, Fig. 7 a, l)
FIG. 8 is an explanatory diagram showing an example of the cut guide of the interior material, and FIG. 8 is an explanatory diagram showing another example of the position where the exterior material is pasted in the band-shaped opening part. A...exterior material, B...interior material, m...
...Adhesive (adhesive) applied part, n...Heat seal part or adhesive (adhesive) applied part, 1...
...Surface part, 2...Back part, 3a, 3b...
...Side wall portion, 4a, 4b...Fold, 5...
...Lid, 6...Bottom, 7a, 7b...
...Tongue piece, 8...Adhesive piece, 9...
Band-shaped opening part, 11... Cutting line, 12...
- Cutting guide, 14...Remaining end.

Claims (1)

[Scope of utility model registration request] Through the folds 4a and 4b, a front part 1, a back part 2, and a back part 2, each having a lid part 5 and a bottom part 6 on both sides, with intervening side wall parts 3a and 3b having tongues 7a and 7b at both ends. An adhesive piece 8 is attached to the side end of the side wall portion 3b, and the side wall portion 3
a, 3b, on the back side of a rectangular exterior wall material provided with a band-shaped unsealing portion 9 that communicates the front surface portion 1, back surface portion 2, and adhesive piece 8, at least a torn piece with a size that extends vertically of the exterior material A; The film includes a directional film, the tearing direction of which is set parallel to the strip-shaped opening portion 9, and a surplus end portion 14 is provided at the side end to form a cylindrical shape, and a knob attached to one end of the strip-shaped opening portion 9. The interior material B is placed inside so that the edge of the extra end portion 14 is located near 10, and the interior material B and the exterior material A are integrally fixed at least on the back surface of the strip-shaped opening portion 9. A paper box equipped with an opening mechanism that has a strip-shaped opening section 9 that can be cut out.