JPS6020584Y2 - Simultaneous opening structure for containers with overwrapping - Google Patents

Description

[Detailed description of the invention] The present invention relates to a simultaneous opening structure for a container with an overwrapping, which has an opening and an opening cut line extending from the side of the body to the top surface, and which can open a sealed container overwrapped with a film in one operation. It is something.

Conventionally, most containers for snack foods and the like have the same opening for inserting the product and the opening for opening the product, but it may be desirable to have a relatively flat container depending on the product to be sealed.

With this relatively flat container, it is better to open the container by providing an opening on the side of the body and cutting an opening cut line from the opening to the top surface, as shown in Figure 1, than to take out the article through the article sealing opening. Desirable for retrieval.

In response to this need, as shown in Figure 1, a sealed container A is created, which has an opening and an opening cut line from the side of the body to the top, and wraps the container in a film with an opening tape attached to the center. It is commercially available.

Opening this sealed container A required two steps: pulling the opening tape to open the film overwrap, and pulling the opening to open the box itself along the opening cut line.

The present invention aims to provide an opening structure for a sealed container that can be opened in one operation without applying an opening tape when opening the sealed container as described above.

Two examples of implementing the present invention will be explained below with reference to the drawings.

In the rectangular flat container 1 shown in FIG.
An opening opening 2 that expands upward is provided in one body side portion 1a of the housing with perforations and intermittent cut lines, and perforations that are continuous with the opening opening 2,
Cut the opening cut line 3 such as an intermittent cut line on the body side 1a.
It is provided while expanding from the top surface 1b to the upper surface 1b.

Furthermore, this opening cut line 3 intersects with and continues with a bending line 3a consisting of a line, a perforation, an intermittent line, etc. parallel to the ridge 3b on the top surface of the container.

A hot-melt adhesive 4 is applied to the opening piece of the opening 2.

For a flat container 1 provided with an opening 2 and an opening cut line 3 as described above, a transparent film 5 is cut and used as an overwrapping material as shown in FIG.

The film 5 has a notch 6 and a tongue piece 7 that fits into the notch 6.
are provided, and cuts 8 are made in the film 5 on the extension of the tongue pieces 7.

The width of the tongue piece 7 is made wider than the width of the opening 2 of the container 1.

Snacks 9 are already stored in this container 1.

Next, as shown in FIG. 4, the container 1 is covered so that the tongue piece 7 of the film 5 or its extension is stuck with the adhesive 4 applied to the opening piece 2a of the opening of the container 1, and then the fifth As shown in the figure, the end portions of the film 5 are adhered to the body side portion 1a of the container 1, and the container 1 is wrapped over the container 1 with the film 5 in a state in which both side portions are folded and brought into close contact with the container 1.

At this time, the lower side of the tongue piece 7 of the film 5 is connected to the opening piece 2 of the container 1.
It is located below a and becomes the opening start guide end.

The container 1 sealed in this way is sold as a product.

To open the sealed container 1, pull the tongue piece 7 of the film 5, so that the film 5 opens the opening piece 2 of the opening 2 of the container 1.
a, the container 1 is cut and opened along the opening 2 and the opening cut line 3, and the snack food 9 can be taken out.

FIG. 7 shows a flat container 1 according to a second embodiment, in which an opening 2 that expands upward is provided on one body side 1a of the container 1 with perforations and intermittent cut lines, and is continuous with the opening 2. An opening cut line 3 such as a perforation or an intermittent cut line is curved from the body side portion 1a to the upper surface, and the opening cut lines 3 are connected in a straight line at a fixed position.

Next, the opening 2 and the opening cutter.

Apply adhesive 4 to the inside of In 3 up to the middle (maximum enlarged part).

Furthermore, the container 1 is overwrapped with a film 5 in the same manner as in the first embodiment.

The container 1 sealed in this way is opened by pulling the tongue piece 7 of the film 5, as in the first embodiment.
is glued to the opening 2 of the container 1, and the inside of the opening cut line 3 is also glued to the film 5, so the container 1 and the film 5 are cut at the same time and the container 1 is opened as shown in FIG. The snack food 9 can then be taken out.

Most types of filters can be used as the overwrap film 5 of such a sealed container opening structure, and for example, cellophane film, which is often used as an overwrap film, is particularly easy to tear.

In addition, the shape of the opening cut line 3 is usually wider than the opening 2 of the container, but the same effect can be obtained even with films such as polypropylene film, which have high tear strength and are difficult to tear in a straight line. In order to open the package more reliably and easily, the angle at which the opening line expands toward the end, that is, the angle between the opening cut line 3 and the ridge line of the surface where the opening cut line 3 and the opening opening 2 are adjacent, is set close to perpendicular to the ridge line. Just attach it.

Normally, about 50 degrees is good.

The adhesive may be applied near the opening line along the opening line or on the entire inside of the opening 2 and the opening cut line 3, but the opening 2 of the container 1 is the most effective.
It can be applied to the inner surface of the

As a characteristic of the adhesive, the adhesive strength between the film 5 and the opening piece 2a of the opening 2 of the container 1 is such that when the film 5 is pulled up,
It goes without saying that something that will stick to the opening piece 2a of the opening 2 is required.

Generally, hot melt adhesives are easy to use, but other adhesives such as pressure-sensitive adhesives may also be used.

Note that the cutting line of the opening 2 is better than the perforation line in order to reduce the opening resistance force at the start of opening if possible, so it is better to increase the number of the cutting line part even with the perforation line.

In addition, the cut 8 up to the adhesive part of the opening 2 that is created by lifting and tearing the tongue piece 7 of the film 5 is
It is necessary to be able to cut outward from both ends, so the width of the tongue piece 7 is set wider than the width of the opening 2.

Although the gripping portion of the tongue piece 7 is unnecessarily narrow, the above consideration will suffice.

As described above, in the opening structure of the sealed container overwrapped with the film 5 according to the present invention, the opening of the films 1 and 5 and the opening of the container 1 can be performed in one operation, and the conventional opening tape can be omitted, simplifying the process. At the same time, the packaging cost is reduced, the protective function of the film 5 is not reduced, and moreover, most of the container 1 is covered with the film 5, compared to the conventional case in which the entire film 5 is removed, making it easier to store items. It has various advantages such as being able to prevent deterioration.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of a conventional sealed container, Fig. 2 is a perspective view of the container of the first example of implementation, Fig. 3 is a surface view of the overwrapping film, and Fig. 4 shows the overwrapping process. 5 is a perspective view of the sealed container, FIG. 6 is a perspective view of the container in an unsealed state, FIG. 7 is a perspective view of the container of the second implementation example, and FIG. 8 is a perspective view of the container in the unsealed state. . Codes in the figure: 1... Container, 2... Opening mouth, 3... Opening cut line, 4...
...Adhesive, 5...Film, 6...
・Notch part, 7... tongue piece, 8... notch.

Claims (1)

[Scope of utility model registration request] A perforation is made in the opening 2 that expands upward on one side of the body 1a.
a perforation provided by an intermittent cut line and continuous with the opening 2;
The container 1 is provided in a fan shape, a cylindrical shape, etc. with an opening cut line 3 such as an intermittent cut line expanded on the upper surface 1b, and a tongue that fits into the front notch 6 on one side of the rectangle facing the notch 6. The pieces 7 are cut in each step and a cut 8 is made on the extension of the tongue piece 7.
A heat-adhesive film 5 having a size sufficient to cover the container 1 is provided, and the width of the tongue piece 7 is made larger than the width of the opening 2, and the opening 2 of the container 1 is opened. An adhesive 4 is applied to each surface of the opening piece 2a of the opening 2 of the container 1 or the opening cut line 3 of the opening 2 of the container 1, extending downward from the opening 2a.
, and tightly wrap the container 1 with the film 5 so that the base of the tongue piece 7 of the film 5 interlocks with the opening 2 of the container 1.
The simultaneous opening structure of a container with an overwrapping is such that the tip of the tongue piece 7 of the film 5 becomes the opening start guide end.