JPS5854389Y2 - Easy-open container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an easy-to-open container characterized in that it is hermetically sealed before being opened and can be easily opened when it is opened.

In addition, the container of the present invention is an easy-to-open container that can easily open each storage section independently, whether it has one storage section for storing sweets, etc. or a container with multiple storage sections in one or two parallel configurations. It is.

Note that "parallel" refers to the case where a plurality of storage sections 1 are arranged in parallel as shown in Fig. 6, and "double parallel" refers to the case where there are two rows of storage sections arranged in parallel as shown in Fig. 7. say.

As seen in Japanese Utility Model Application Publication No. 54-85175, a recessed part that is not sealed with the lid material is provided in the flange of the container, and a cut is made at a position corresponding to the recessed part, as a container that can be opened relatively easily from a sealed container. This is a container that is sealed with a lid provided with a cutout and then opened by tearing the lid from the notched position, but since this container has a flat flange and a recessed flange, it is necessary to use a specific sealing stand. Otherwise, it is difficult to seal with the lid material, the cut line of the lid material needs to match the recessed flange, making alignment difficult, and the width of the flange part needs to be widened to create the recessed part. When the flange portion is made narrower, the gripping portion becomes narrower, making it difficult to open.

For this reason, the inventors of the present invention did not provide a flange part with a different sealing position, that is, a recessed part. As a result of various studies, the easy-to-open container of the present invention was devised so that it could be easily peeled off.

The container of the present invention has the advantage that whether it is a car storage container with one storage section or multiple storage containers with one or two storage sections arranged in parallel as described above, each storage section can be easily opened independently. are the same.

To describe an example of manufacturing the container of the present invention, the flange portion 3 of the container body 2 is obtained by thermoforming a plastic sheet such as polyvinyl chloride, polypropylene, polystyrene, etc.
As shown in FIG. 1, insert a notch line 4 such as a 119-inch hole or hemlock.

Next, we matched the direction of opening and the direction of easy tearing.
A composite film 5 containing an axially stretched film, such as a composite film 5 whose sealing layer is an ethylene-vinyl acetate copolymer film layer and whose outer layer is a uniaxially stretched polypropylene film layer, is used as a lid material to seal the flange portion 3 of the container body.

Note that the opening direction and the easy-to-peel direction are made to coincide with the direction in which the lid material is peeled off from the container body and the direction in which the uniaxially stretched film is stretched.

Next, the flange portion is trimmed along the dashed line 6 shown in FIG. 1 to produce a container as shown in FIG.

Note that the broken line portion 6 is not actually provided on the container flange portion, but is shown in the drawing for convenience of explanation.

At the time of this trimming, the flange portion of the container body is separated into a flange portion 3A that is connected to the container body and a flange portion 3B that is not connected.

The flange portion 3B, which is not connected, is actually separate from the flange portion of the container body, but as seen in FIG. 3, it is sealed with the lid material, so that it appears to be part of the container body.

This flange portion that is not connected to the container body serves as an opening portion when opening the container.

This opening part has a sealed lid and flange, so when opening it, it is thicker and easier to open than when opening only a conventional lid.

Next, when sealing the container body and the lid material or trimming the sealed container to a predetermined size, there is a slit for starting the opening located outside the flange portion 3B that does not connect and near both ends of the flange portion that does not connect. Line 7 is provided.

In this way, they are actually separated, but they appear to be part of the upper container body.
In other words, it has a flange part that is not connected to the main body of the container, in other words, it has an opening part, and an opening opening part that is located outside the flange part that is not connected and is provided near both ends of this flange part. The provision of slit lines is an important feature of the container of the present invention, and their interaction constitutes a requirement for the easy-to-open container of the present invention.

The position of the slit line is regulated as described above.For example, if the slit position is set at position 8 in the flange as shown in Figure 4, the role of the snot line is to position the opening of the seal and facilitate opening. It does not play the role of auxiliary action.

In other words, the slit line makes it extremely difficult to open.

If a slit line is provided at position 9 spanning the connecting flange part and a non-connecting flange part, there is a risk of seal failure at this part, and if it is provided at position 10 at both ends of the non-connecting flange part, the This is also undesirable as it may cause the position to shift.

Therefore, the position of the slit line is on the outside of the flange part 3B that is not connected to the container body, and is located at either end of the flange part, for example, at position 7, preferably from the end.
It is desirable to provide the slit line at a position within mm, and the length of the finite slit line may be a guideline for starting to open the seal, and a length of 2 to 3 mm is sufficient.

Although it is common to provide one pair of opening portion and slit line in one storage portion, it is also possible to provide two pairs of opening portions and slit lines as shown in FIG.

In this case, since the opening area for taking out the contents can be changed to four types, the opening area of your choice can be selected depending on the size and type of the contents to be stored.

When opening the container of the present invention made using the method described above, first, when the opening section 3B is lifted, the slit line 7 serves as a guideline for starting the opening, and the opening begins due to uniaxial stretching of the lid material. Since the composite film containing the film is sealed in a direction in which it is easy to peel off, the slit line is used as the opening line and the package is easily opened to obtain a predetermined opening area and the contents can be taken out from that part at will. can be consumed.

In this way, the easy-to-open container of the present invention is a hermetically sealed container in which the composite film of the lid material containing a uniaxially stretched film is regulated in an easy-to-open direction and sealed with the flange of the container body. After dividing into a flange part that connects with the flange part and a flange part that does not connect with the lid material, the flange part that does not connect with the lid material and has a thickness of (lid material + 7972 parts) is used as the unsealing part, and the unsealing part that is outside of this unsealing part. A slit line for starting opening is provided near either end of the container, and this slit line serves as a guideline for starting opening, and the interaction between this slit line and the opening section allows for easy opening. This is done when sealing the lid material or when trimming the container to a specified size, so it is difficult to seal because it has a recess like conventional methods, or it is difficult to seal by matching the cut lines made on the lid material to the recessed parts and sealing. It is a very efficient and easy-to-open container, as there is no need to open the container, or if the flange is narrow, the container is difficult to open because it can be opened using only the tab on the lid.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a container body that is an example of the container of the present invention, Fig. 2 is a perspective view of an example of the container of the present invention, and Fig. 3 is an enlarged cross-sectional view of the sealing portion between the container body and the lid. , FIG. 4 is a side view of the position of slit lines provided on the container, FIG. 5 is a diagram showing the container in an unsealed state, FIG. 6 is a diagram of one container in parallel, and FIG. 7 is a diagram of two containers in parallel.

Claims (1)

[Scope of utility model registration request] In a hermetically sealed container in which a composite film including a uniaxially stretched film and a flange of the container body are sealed, the flange of the container body is divided into a flange that is connected to the container body and a flange that is not connected. is used as the unsealing part when opening the container, and a slit line for starting opening in the same direction as the stretching direction of the uniaxially stretched film is provided outside the unconnected flange part and near both ends of the flange part. An easy-to-open container characterized by comprising a composite film comprising: