JPS6323338Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid packaging paper box that combines an inner bag made of resin film and a cardboard box.

This type of liquid packaging paper box is well known and has a structure in which the liquid inside can be taken out without opening the package. That is, a spout is integrally formed in the inner bag, an opening from which the spout can be taken out is provided in the canopy part of the paper box by a cut line such as a perforation, and when the liquid is taken out, the perforation line is cut to open the opening. The spout is pulled out from the opening, thereby allowing the required amount of liquid to be poured out.

However, the canopy of the box body consists of an inner flap and an outer flap, and a perforation line is provided on the outer flap, but considering the strength of the entire box, the intervals between the perforations are set so that it cannot be opened so easily. It is wide and shallow. Therefore, since there is an inner flap on the inside and the perforation is such that it cannot be opened easily, it is difficult to separate the opening, and if you try to force it open, it will damage the area other than the opening. There is a risk of tearing off the opening, and it is difficult to open the opening properly and in a good manner.

The present invention was made to eliminate these drawbacks, and the purpose is to create a liquid packaging paper box that does not reduce the strength of the paper box itself, is easy to assemble, and has an opening that is easy to open. This is what we are trying to provide.

The present invention was developed to achieve this purpose.
In a liquid packaging paper box comprising an inner bag made of resin film and having a spout, and a paper box configured such that the inner bag is stored and the spout is taken out, the canopy of the paper box is attached to the upper edge of the end plate. A pair of inner flaps that are connected to each other, and a position where the inner flaps meet and are biased to one side, which are connected to the upper edge of the side half plate overlapped with the inner flaps, are used for taking out the spout. Notches are provided, and incisions serving as openings are formed along perforation lines at the abutting portions of the outer flaps at positions corresponding to these notches, and tongue pieces that can be pinched with fingers are formed protruding from each of these incisions. This liquid packaging paper box is characterized by the following: Each incision is provided with a tongue piece for a handle, so either tongue piece can be on top when forming the box body, making it easy to assemble. There is no need to be careful, and since one of the tongues is always in a protruding state, the incision can be easily opened by grasping and pulling the tongue without damaging other parts. .

Next, the present invention will be explained in more detail with reference to the illustrated embodiment. Reference numeral 1 is a paper box made of corrugated paper. A rectangular box is formed, and outer side half plates 6, 7, 8, 9 are integrally connected to each end plate 4, 5 on both sides thereof.

The end plates 4 and 5 have inner flaps 1 on their upper edges.
0 and 11 are connected to each other, and notches 12 and 13 are formed at the free ends of these inner flaps, that is, at the butt portions when the lid is closed, and are biased to one side. This is the part that will be taken out.

Outer flaps 14, 15, 16, 17 are integrally connected to the upper edges of the outer side half plates 6, 7, 8, 9 to be superimposed on the inner flaps. Among these outer flaps, the cutout portion 12,
The outer flaps 14 and 16 located on the 13 side are provided with incisions 18 and 19 at positions corresponding to the notches and at the abutting portions by cutoff lines such as perforations,
Tongues 20 and 21 for gripping are formed in a protruding manner and connected to these incisions. This incision 1
Reference numerals 8 and 19 serve as openings for taking out the spout, and tongue pieces 20 and 21 can be pinched with fingers. and in particular the incision 18,1
9 are semicircular portions 18a and 19, respectively.
a, and these semicircular portions are completely cut out to form the spout extraction holes.

When assembling the paper box constructed in this way, adhesives 22, 23, 24, 25 are applied in strips near the abutting ends of each of the outer side half plates 6, 7, 8, 9, and these adhesives are applied. inner side plate 2 through the agent,
3, and the side portions are essentially double-layered.

An inner bag 30 housed in the paper box 1 is made of a resin film, and a spout 31 made of resin is provided protruding near the top of the bag. A known inner bag having such a spout can be used as is.

After storing the inner bag 30 in the paper box 1 and injecting a predetermined liquid into the inner bag, the inner flaps 10 and 11
is folded inward so that the spout 31 faces between the notches 12 and 13. Next, outer flap 1
5 and 17 are folded inward and overlapped onto the inner flap and fixed by gluing with adhesive. Next, the spout 31 is folded inward, and then the outer flaps 14 and 16 are folded inward and overlapped on the inner flap. They are combined and fixed with adhesive to complete the packaging (see Figure 3). In this state, they are stored, transported, and transported.

When removing the contents from this packaging,
Of the tongues 20 and 21 connected to the incisions 18 and 19, one of the tongues is located on the outside. At the same time, the semicircular portion 19a is torn and completely removed. Subsequently, the tongue piece 20 located on the inside is similarly picked up with fingers and pulled upward, and a part of the incision 18 is torn off, and the semicircular part 18a is torn and completely removed, and the semicircular part 19a is removed. A substantially circular hole is formed.

The incisions 18 and 19 are torn and positioned in a double-door shape to form an opening, and the notch 1 is inserted through the opening.
Pull out the spout 31 facing inside 2 and 13, position the spout 31 in the circular hole made by cutting out the semicircular parts 18a and 19a, and then close the incision so that only the spout 31 protrudes from the box body. state (see Figure 4). In this state, the liquid inside can be taken out by turning the paper box sideways and operating the lid of the spout 31.

As explained above, in the paper box for liquid packaging according to the present invention, the opening that serves as the outlet for the spout is formed as an incision along the perforation line at the abutting part of the outer flaps constituting the canopy of the paper box, and the opening is connected to the incision. It has a protruding tongue that can be pinched with your fingers, and has the excellent effect that by picking and tearing this tongue with your fingers, you can easily open the opening without damaging other parts. play.

Furthermore, since the tongues connected to the incisions are provided on both sides, no matter which side panel on the outside is folded first when assembling the box, the tongues will always be located on the outside, which will change the assembly order. It also has the effect of being able to be assembled efficiently without being subject to any restrictions.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the paper box of the present invention in the process of being assembled, Fig. 2 is a perspective view showing the paper box with an inner bag stored in it, and Fig. 3 shows the paper box with its canopy sealed. FIG. 4 is a perspective view showing the spout of the inner bag taken out from the cutout of the paper box. 1... Paper box, 2, 3... Inner side plate, 4, 5...
...Given plate, 6, 7, 8, 9...Outer side half plate,
10, 11... Inner flap, 12, 13... Notch, 14, 15, 16, 17... Outer flap, 1
8, 19... Incision portion, 18a, 19a... Semicircular portion, 20, 21... Tongue piece, 22, 23, 24,
25...Adhesive, 30...Inner bag, 31...Spout.

Claims (1)

[Scope of utility model registration request] In a liquid packaging paper box comprising an inner bag made of resin film and having a spout, and a paper box configured such that the inner bag is stored and the spout is taken out, the canopy of the paper box is attached to the upper edge of the end plate. It is composed of a pair of inner flaps that are connected to each other, and an outer flap that is connected to the upper edge of the side half plate that is overlapped on the inner flaps, Notches for taking out the spout are provided at lopsided positions, and incisions to serve as openings are formed along perforation lines at the abutting portions of the outer flaps at positions corresponding to these notches, and at these cutouts and protrusions. A liquid packaging paper box characterized by having protruding tongue pieces that can be pinched with fingers at the joint parts.