JPH043984Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a double-structured paper box in which an inner bag is attached to the outer box, and in particular, it is designed to allow the inner bag to be opened smoothly at the same time as the outer box. This is about a paper box made into a paper box.

[Prior art] Paper boxes with an inner bag attached to the outer box are used as containers for snacks and other foods, detergents, etc.
For example, as in the paper box shown in Utility Model Publication No. 54-81827, a plastic film is used for the inner bag, and the outer box can be opened using a body zipper for opening, and the inner bag can be opened using a notch in the back seal provided in advance. It is starting to be opened. On the other hand, various proposals have been made in which the outer box and inner bag are opened at the same time.
No. etc.) have been made.

[Problems to be solved by the invention] However, in conventional paper boxes with an inner bag attached to the outer box, the inner bag used when the outer box and inner bag are opened separately or when opened simultaneously. A directional plastic film is used to make the opening smooth, and using a non-directional film makes it easier to open the package using the conventional zipper Z shown in Figure 7. After opening, cut pieces remain inside the cut section, which causes the film to be cut inward, making it difficult to open the package smoothly, and the remaining cut shape often looks bad.

In addition, in various paper boxes that can be opened at the same time, if the inner bag has a so-called envelope-type back seal, it is relatively easy to open a part of the inner bag along with the opening part of the outer box. In the case of back seals, it was difficult to open them at the same time unless a notch or the like was formed in advance.

[Means for Solving the Problems] The present invention solves the above-mentioned conventional problems associated with opening a paper box with an inner bag attached inside the outer box. The purpose of this paper box is to provide a paper box that can be opened smoothly and stably from the bottom, and the cut shape that remains looks good. A belt-shaped zipper is engraved so that
A knob, which is the opening end of the zipper, has an opening portion formed by punching a window for inserting a finger in the compartment of the zipper, and a back seal portion with a gassho paste projecting into the window portion. It is a paper box in which an inner bag is attached so as to run longitudinally along the inner surface of a piece, and the outermost layer of the inner bag is made of thin paper,
It is composed of a composite packaging material whose innermost layer is a heat-sealable synthetic resin, and the notches of the zipper are carved outward so that no cut pieces remain inside the cut part of the outer box, and at least the zipper is The outer box and the inner bag are bonded together at the opening section along the line.

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, A is a cardboard outer box with an opening section formed by an opening strip zipper 1, and a second box inside. An inner bag B as shown in the figure is attached.

The outer box A has an expanded configuration as shown in FIG. At the upper and lower edges, top plates 14, 14 and bottom plates 15, 15 are connected to each other via an arcuate fold 16 projecting inward, and the top plate 14 is symmetrical to this arcuate fold 16. and the upper and lower edges of the bottom plate 15 are formed.

The belt-shaped zipper 1 includes the front plate 10 and the back plate 1.
1. It is carved so as to cross the adhesive piece 13, and is provided somewhat upwardly. A window 3 for inserting a finger is provided in the front panel 10 in the band-shaped zipper section of the front panel 10, and serves as a starting point and an ending point for simultaneous opening.

The inner surface of outer box A is attached to inner bag B using a suitable adhesive pattern, as shown in FIG. In simultaneous opening, it is preferable not to apply the adhesive too close to each perforation of the strip zipper. As shown in FIG. 2, this inner bag B is sealed on the back in a manner that the palms are joined together, and if necessary, notches 2 are provided at a plurality of locations on the back seal portion, which are substantially parallel to the direction in which the zipper 1 is opened.

For the inner bag B, a plastic film with tear directionality, such as uniaxially stretched medium-low pressure polyethylene, can be used as the base material, but as a composite material, the seal end, which is the bending base of the back seal part, has excellent tearability. It is also preferred to use a non-directional flexible packaging material such as ceronium. Also,
In consideration of contents resistance, moisture resistance, etc., it may be further laminated with aluminum, polyethylene, etc., which is selected as appropriate depending on the contents to be accommodated.

By the way, in order to relatively easily start and cross the cut at the back seal part, and furthermore to move in the opening direction without using the notch, by using the laminated structure of the inner bag, the outermost layer of the inner bag is made of thin paper, Preferably, the innermost layer is made of a heat-sealable synthetic resin. As shown in the figure, the back seal part is folded to one side so as to traverse the inner bag and is installed inside the outer box.The back seal part is heated during sealing and then cooled, so that the resin layer of the back seal part is heated. is hardened. Therefore, it becomes easier to cut in the longitudinal direction at the boundary between the back seal part and the other part, that is, at the seal end part S which is the bent base of the back seal part.

On the other hand, the back seal portion folded to one side is provided with a crease, and this crease serves to reverse a part of the back seal portion and cut the seal end portion S in the longitudinal direction at once. In particular, when the outermost layer is thin paper and aluminum foil is interposed in between, once the folds are applied, the folded part has poor restorability and becomes brittle. Cutting the part S becomes easy.

Further, the cut shape of the zipper 1, like the conventional zipper Z, is directed outward so that no cut pieces remain inside the cut section of the outer box after opening. The width of the zipper 1 is normally about 10 to 15 mm, but when a non-directional film is used for the inner bag B, since there is no directional stability, the width should be twice the normal width, that is, about 20 mm or more.

The outer box A and the inner bag B are combined to form a paper box, and the outer box A and the inner bag B are pasted together at least on the back side of the opening part where the strip zipper 1 is formed (fifth (see figure).

It should be noted that if a window 3 is provided in the opening part of the outer box equipped with the zipper 1, and the knob 4 at the end of the zipper 1 is made to protrude into this window 3, it will be convenient for fingers to hook the zipper. 1 becomes easier to open. Please note that it is necessary to open the inner bag at the same time as the back seal.
The back seal portion and the knob piece 4 are made to correspond to each other.

Next, in order to assemble a paper box that can be opened at the same time using these outer box A and inner bag B, an adhesive pattern P is attached to the inner surface of the unfolded outer box A as shown in Fig. 5 as shown in Fig. 5.
The adhesive pattern P is set at least on the inner surface of the unsealed part along the zipper 1 (the part shown by the dot in the figure), and the other parts are set at appropriate locations. As shown in Figure 2, the back of the inner bag B is sealed with gassho paste, and the inner bag B is attached to the inner surface of the outer box A with the back seal folded down to one side as shown in Figure 6a. While bonding, the adhesive piece of the outer box A is bonded to the back surface of the front plate 10 as shown in FIG. 6b.

By having the composition as described above, Fig. 6b
Since the inner bag B can be folded in the state immediately before completion when it is installed inside the outer box A, the subsequent filling of the contents 5, sealing of the upper and lower parts of the inner bag, and overall assembly can be automated. This improves work efficiency.

Further, the peripheral edges of the top plate and bottom plate of the outer box A are curved as shown in the illustrated example, and the upper and lower surfaces are pushed in to complete the closing of the lid, and the attachment is maintained as necessary. The front and back plates of the assembled paper box are curved outward by the arcuate folds of the top and bottom plates, and the top and bottom plates form recesses.

When the tab of the strip zipper 1, which is formed by winding the front and back plates of the completed paper box with inner bag shown in FIG. Since these are pasted together, the back seal on the inner surface of the knob is also pinched, and when these are moved in the opening direction, the inner bag B is also opened at the same time as the outer box A is opened by the strip zipper 1, as shown in Figure 3. It will be opened. When trying to cut the back seal part into a strip along with the tab 4 of the outer box opening part, first turn over the back seal part which has been folded down to one side.
Cutting starts from the back seal side edge, and when the top side edge is run in the opening direction together with the bottom side edge, it is temporarily stopped at the seal end part S by the pull of the bottom side edge, and when it continues to run, the seal end at the bottom side edge is cut. Section S is cut in the longitudinal direction, and then the inner bag is rolled and unsealed together with the strip zipper. At this time, due to the special cut shape of the zipper 1, no cut pieces remain inside the cut part of the outer box after opening, so the package is opened smoothly and stably, and the inner bag has no directionality. This is particularly advantageous when a ceronium is used, and when a directional film is interposed and thin paper is used as the outermost layer, the appearance of the cut shape after opening and the runnability of the film are even better. .

[Effects of the invention] As described above, according to the invention, although the container has a double structure consisting of an inner bag and an outer box with a gassho-attached back seal, the inner bag and outer box can be opened at the same time. The opening operation is smooth and the contents can be easily taken out.The strip zipper guides opening regardless of the orientation of the inner bag.Furthermore, the specially shaped zipper allows for precise orientation, making it easy to remove the contents after opening. The appearance of the cut shape is improved, and assembly can be easily mechanized to improve work efficiency. Furthermore, when the outer box has the shape of the present invention, it fits easily in the hand and is convenient to carry.Also, since the front plate is a curved surface, the knob protrudes somewhat in the horizontal direction, making it difficult to hold the box. Moreover, the bending tension of the front plate and the back plate allows the band-shaped zipper to be cut very well, resulting in extremely useful effects such as simplifying the opening operation.

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of the present invention, where Figure 1 is a diagram showing the completed assembly, Figure 2 is an explanatory diagram of the state immediately before assembly is completed, Figure 3 is an explanatory diagram of the state after opening, and Figure 4 is an explanatory diagram of the state immediately before the assembly is completed. The figure is a developed view of the surface of the outer box, FIG. 5 is a developed view of the inner surface of the outer box, and FIGS.
FIG. 7 is an explanatory diagram of a conventional zipper. DESCRIPTION OF SYMBOLS 1... Band-shaped zipper, 2... Notch, 3... Window, 4... Knob piece, 5... Contents, 10... Front plate, 11... Back plate, 14... Top plate, 15...
Bottom plate, 16...Circular fold, A...Outer box, B...
...Inner bag, P...Adhesive pattern, S...Seal end part, Z...Conventional zipper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A band-shaped zipper is cut across the curved body, and a window for inserting a finger is bored in the zipper section to form an opening part. The paper box is a paper box in which an inner bag is attached to an outer box in such a way that a gassho-attached back seal part extends vertically across the inner surface of a knob that is the opening end of the zipper that protrudes into the window part, and the inner bag is It is composed of a composite packaging material in which the outermost layer is tissue paper and the innermost layer is a heat-sealable synthetic resin, and the notches of the zipper are carved outward so that no cut pieces remain inside the cut part of the outer box, Furthermore, the paper box with an inner bag is characterized in that an outer box and an inner bag are bonded together at least at an opening portion along the zipper. (2) A paper box with an inner bag according to claim 1, which is a utility model registered claim, wherein a directional film is interposed in the inner bag. (3) The paper box with an inner bag according to claim 1, wherein the inner bag uses a non-directional flexible packaging material. (4) The paper box with an inner bag according to claim 1, wherein the zipper has a width of about 20 mm or more.