JPH0224779Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a packaging container made of a sheet-like material and used as an inner bag or as an inner bag.

(Prior art) When packaging so-called stick products such as yokan (yokan), the contents are placed in a packaging container made of a flexible sheet-like material such as metal foil, synthetic resin film, cellophane, or a laminated combination of these. It is well known to load and package the packaged product, and then store and package the packaged product in an outer box if necessary.

In this well-known packaging, the outer box is generally made of cardboard and can be easily opened by any opening means such as a tear line or a lid, while the inner packaging container is made of waterproof, moisture-proof, air-impermeable sheet-like material. Since it is made of a material that requires sealing, there are restrictions on how it can be opened. If the contents are packaged with a considerable gap and can move freely, it is okay to make a notch in the joined part of the packaging container and tear it open freely. If the contents are packed tightly, such as yokan (yokan), if you tear open the contents irregularly, the contents may become wedged and become impossible to open, or the contents may be deformed or damaged. As a countermeasure against this, an opening start edge formed between two cuts is provided at the palms of the palms, or a cut tape is placed over almost the entire circumference, and the opening start edge or the cut tape is pulled to make a full circle in the transverse direction of the packaging container. It is known to have a structure in which the package is opened by the user.

Fig. 7 shows an example of a conventional product using a cut tape as an opening means, and is a rectangular cylindrical container having an adhesive part 1 formed by folding a sheet-like material, aligning the edges on both sides in a palm-like shape, and adhering them to each other. In the packaging container consisting of a body 2, a cut tape 3 is adhered to a sheet-like material over almost the entire circumference of the inner surface of the container body 2, and its tip is made to protrude from the adhesive part 1.

(Problem to be solved by the invention) In such packaging containers, cut tape 3
When the protruding end of the container body 2 is pulled in the direction of arrow A in FIG.
At this time, the palms rise and the right side part 2b is pulled to the left, so the cutting tape 3 is subjected to a breaking force for cutting the sheet-like material and a tensile drag force over the entire length of the right side part 2b, and a large force is applied at the beginning of cutting. This requires force and the cut tape 3 may break.
Even in cases where the opening end is provided between two notches, a tensile phenomenon as explained in FIG. 8 may occur at the beginning of opening, and the opening may not be possible.

The present invention has been devised for the purpose of eliminating such problems and providing a packaging container that can be opened easily and reliably.

(Means for Solving the Problem) In the present invention, both side edges of a sheet-like material are brought together in a palm shape with one edge protruding from the other edge, and both side edges The overlapped portions of are adhered to each other, and the joining portion made of the adhesive portion and the protrusion is overlapped on the outer surface of the container body made of the sheet-like material with the edge portion having the protrusion facing upward, and The projecting portion is provided with an opening start end formed between two slit-like cuts, and the joining parts are bonded to the surface of the container body on both sides of the opening start end. This is a means for solving the above-mentioned problems.

(Function) When you pick up the opening edge with your fingertips and pull it, since the palm parts on both sides of the opening edge are adhered to the container body, the lower edge will not be pulled together and stand up, and the incision will be extended. Along the top, the sheet material is torn and opened.

(Example) Embodiments of the present invention will be described based on the drawings.

Figure 1 shows a flexible sheet-like material formed by laminating polyethylene film and cellophane with aluminum foil sandwiched between them, folded with the polyethylene film inside, and the edges on both sides, 21 and 22, on one edge. 21 is made to protrude from the other end edge 22 and put together in the shape of palms together, and the overlapping portions of the sheet-like materials of the band-shaped palms 11 are bonded by thermal bonding or using an adhesive to form a bonded part. 12
is formed into a cylindrical shape with a predetermined length, one end is closed with a sealing part 13 made of heat adhesive, and after loading a content such as a yolk, the open end is closed with a sealing part 14 also made of heat adhesive. It shows a packaging container made by folding. Then, a palm-joining portion 11 is formed along the entire length on the outside of the rectangular cylindrical container body 16.
is formed by the adhesive part 12 and the protruding part 15 of the edge part 21, and the edge part 21 having the protruding part 15
It is folded over the outer surface of the container body 16 with the upper side facing upward. In addition, two slit-shaped notches 17, 17 are provided in the protruding portion 15 at appropriate intervals at a location near one end of the container body 16, and an opening start end 18 is formed between these.

The palms 11 and the surface of the container body 16 are bonded to each other on both sides of the opening start end 18 by thermal bonding or using an adhesive. This adhesive surface 19
When formed over the entire width of the palm-to-hand portion 11 on both sides of the opening start end 18 (FIG. 6a), the palm-to-hand portion 11
In some cases, it is formed only on the adhesive part 12 (FIG. 6b), or only on the protruding part 15 of the palms together part 11 (FIG. 6c).

In addition, the adhesive surface 20 between the sheet-like members in the adhesive part 12 is formed only in a part of the adhesive part 12 at the extension of the opening start end 18, as shown by reference numeral 20a in FIGS. 1 and 2, so that it can be easily peeled off. However, such a structure is not necessary depending on the relationship between the adhesive strength of the adhesive portion 12 and the strength of the sheet material itself. Further, if necessary, a cut tape may be added to reinforce the opening point.

According to this embodiment configured as described above, when the opening start end 18 is pinched with the fingertips and pulled in the direction of arrow B in FIG. , Gassho Part 11
The container body 16 is completely opened when it is cut along the extension of the notches 17 and goes around the container body 16 in the transverse direction, without the lower edge 22 being pulled together when the container body 16 stands up. It is.

(Effects of the invention) As described above, the present invention protrudes one of the both side edges of the sheet-like material at the palm part, and provides this protrusion with an opening start end formed between two notches. Since the palm part is stacked on the container body with the edge with the protruding part facing upward, and the palm part and the surface of the container body are glued on both sides of the opening edge, when the opening opening edge is pulled and opened, the lower side This prevents the edges of the bag from being pulled together and causing the palms to stand up, and together with the fact that the notch is in the form of a slit, the bag can be opened easily and reliably. This eliminates the inconvenience of rupture due to excessive force being applied to the opening end at the beginning of opening, and the contents can be easily deformed even if the container is filled with the contents without any gaps, such as a yokan. , which can be completely cut open without fear of damage.

[Brief explanation of the drawing]

1 to 6 show embodiments of the present invention,
Figure 1 is a perspective view, Figures 2, 3, and 4 are enlarged sectional views taken along lines X-X, Y-Y, and Z-Z in Figure 1, respectively, and Figure 5 is an unpacked view. FIG. 6 is an explanatory plan view of different embodiments of the present invention, FIG. 7 is a perspective view of a conventional product,
FIG. 8 is an enlarged sectional view thereof. DESCRIPTION OF SYMBOLS 11... Praying part, 12... Adhesive part, 15... Protrusion part, 16... Container body, 17... Notch, 18...
...Opening start end, 19...Adhesive surface, 21, 22...Edge.

Claims (1)

[Scope of utility model registration request] Both side edge portions 21 and 22 of the sheet-like material are brought together in a palm-clasp shape with one edge portion 21 protruding from the other edge portion 22, and both side edge portions 2
1 and 22 are adhered to each other, and the joined part 11 consisting of the adhesive part 12 and the protruding part 15 is made of the sheet-like material with the edge part 21 having the protruding part 15 facing upward. 16, and is provided with an opening start end 18 formed between two slit-like notches 17, 17 in the protrusion 15, and the opening start end 18 is provided with the opening start end 18 on both sides of the opening start end 18. A packaging container characterized in that a portion 11 is adhered to the surface of the container body 16.