JPS621084Y2 - - Google Patents

Description

[Detailed description of the invention] This invention leaves the bottom part opposite to the sealing part with the openable lid piece part open, and after putting the packaged item through the open bottom part, the bottom part is heated. This invention relates to an improvement in an automatic packaging bag that is sealed with a seal.

For example, the known automatic packaging bag described in Utility Model Publication No. 54-16752, etc., has a front film 4' made of soft synthetic resin and a back film 5' stacked together, as shown in Figures 1 and 2. to form a cylindrical bag body 1', one end of the bag body 1' is an open sealing part 3', the other end on the opposite side is an open bottom part 2', and the sealing part is A bendable lid piece 6' with a pressure-sensitive adhesive band 7' that covers the sealing part 3' in an openable and closable manner is integrally extended from the back film 5', while the bottom part 2 After inserting the packaged object 8' into the open part 1', the package is sealed by heat-sealing with a thermal cutting blade 9'. However, in this conventional automatic packaging bag, the sealing part 3' is only covered by a lid piece part 6' with a pressure-sensitive adhesive band 7'.
By opening and closing the lid piece 6, the packaged object 8' inside is removed.
Since the bags can be put in and taken out freely, store staff or customers can
Fraudulent acts such as opening the lid part 6' of the bag without permission and pulling out a part of the packaged item 8' inside the bag, or replacing the packaged item 8' inside the bag can be extremely easily carried out. Furthermore, if the bag is displayed on a display stand after the bag's sealing part 3' is closed again to the lid part 6' after the fraudulent act has been committed, it will not be possible to see that a fraudulent act has been committed just by looking at the bag from the outside. It was extremely difficult to tell if something was wrong, and in the end, this encouraged fraudulent acts even further, and at the same time, there were problems such as the store losing credibility by selling products that had been fraudulently processed as they were. .

The present invention provides automatic packaging bags as described above.
At the sealing portion, the other film without the extending lid piece is heat-sealed to the one film with the extending lid portion so as to seal the sealing portion;
The other film was provided with perforated lines along the heat seal, and the perforated lines were cut to remove the packaged item inside, thereby preventing the above-mentioned fraudulent act. It is something.

Next, an embodiment of the present invention will be explained based on the drawings.
Reference numeral 1 denotes a cylindrical bag body made of a soft synthetic resin film such as polyethylene terephthalate or polyvinyl chloride resin, which has an open bottom part 2 and a sealing part 3. The bag body 1 has a front film 4 and a back film 5. It is formed by. A back film 5 is extended by a front film 4 to form a lid piece part 6 on one side edge of the bag body 1 on the side of the sealing part 3, and a pressure-sensitive adhesive strip is applied to the surface of the lid piece part 6. 7 is provided along the sealing part 3 of the bag body 1, and the lid piece part 6 is bent toward the front film 4 side as shown in FIG.
is attached to the back film 4 so as to cover the sealing part 3 in an openable and closable manner, while the bottom part 2 of the bag body 1 is used to store the object to be packaged 8 as shown in FIG. Later, as shown in Figure 8,
It is configured to be hermetically sealed by a heat-fusion cutting blade 9.

Then, on the sealing part 3 side of the bag body 1, one side edge of the front film 4 is heat-sealed so as to seal the sealing part 3 against the back film 5 with the lid piece part 6.
0, and the front film 4 is provided with perforation-like score lines 11 along the heat seal 10 at locations close to the heat seal 10.

In this case, instead of extending integrally from the back film 5, the lid piece 6 extends integrally from the front film 4, as shown in FIG. The front film 4 with the lid piece 6 may be heat-sealed 10, and the back film 5 may be provided with perforated lines 11 along the heat-seal 10.

In the above configuration, in order to take out the packaged item 8 inside the bag 1, first open the lid piece 6, and then cut the perforated line 11 of the front film 4 or the back film 5 of the bag 1. By pinching the provided other film with your fingers and pulling it so that the other film separates at the 11 perforated lines, the 11 perforated lines are torn and opened, and from the torn point. The object to be packaged 8 is taken out by inserting a finger, and in order to close the opening at the 11 perforated lines after taking out, the lid piece 6 must be bent as shown in FIG. 5 or 6. What is necessary is to attach it using the pressure-sensitive adhesive 7.

If the perforated line 11 is torn when the packaged item 8 is taken out, the perforated line 11 cannot be restored to its original state, and it can be clearly determined that the package has been opened. be.

Therefore, according to the present invention, by tearing the perforated line to remove the packaged item, it is possible to know whether the package has been opened before just by looking at the perforated line. This makes it possible to reliably prevent unauthorized acts such as refilling or removing the packaged items, and the perforation line is covered by the foldable lid piece in its normal state, that is, before opening. Because of this, the perforated lines may be accidentally torn during transportation or other handling of the bag containing the packaged items, or dust in the atmosphere may enter the bag through the perforated line. It has no effect.

[Brief explanation of the drawing]

Figures 1 and 2 are diagrams of conventional automatic packaging bags;
Fig. 3 is a plan view of the automatic packaging bag of the present invention, Fig. 4 is a sectional view taken along the line - - of Fig. 3, and Figs. The main part sectional views, FIGS. 7 and 8, showing the state of
FIG. 4 is a cross-sectional view of the bag shown in FIG. 3 when an item to be packaged is placed therein; 1...Bag body, 2...Bottom part, 3...Sealing part, 4...
...Front film, 5... Back film, 6... Lid piece, 7... Pressure-sensitive adhesive band, 8... Item to be packaged, 1
0...Heat seal, 11...Perforated cut line.

Claims (1)

[Scope of utility model registration request] A cylindrical bag is formed by stacking a front film and a back film made of soft synthetic resin, one end of which is an open sealing part, and the other end opposite to this is an open bottom. A bendable lid piece that covers the sealing part so as to be openable and closable is integrally extended from one of the films, while the bottom part is attached to the bag after the object to be packaged is inserted into the bag. In an automatic packaging bag configured to be sealed by heat sealing, the other film on which the lid piece portion does not extend is heat-sealed to the one film on which the lid piece portion extends so as to seal the sealing portion. On the other hand, the other film is provided with a perforation-like cut line along the heat seal at a location close to the heat seal on the other film.