JPH08133299A - Wrap carton - Google Patents

Abstract

PURPOSE: To provide a wrap carton enhancing the drawn-out properties of a rolled film and preventing the rewinding or jumping-out thereof. CONSTITUTION: The upper edge of the front wall part 1 of a carton P is set to a low position and film holding pieces 8 are formed to the upper parts of the front wall part 1 on both sides thereof while a press piece 9 is formed to the central part of the upper edge of the front wall part 1 and the residual notch part excepting the film holding pieces 8 and the press piece 9 of the front wall part 1 is inwardly folded and bonded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a wrap film, an aluminum foil, etc. used for packaging and cooking foods.
The present invention relates to a lap carton for storing a roll wound in a long length, pulling out a required length, and cutting the roll with a serrated tooth for use.

[0002]

2. Description of the Related Art Conventionally proposed forms of wrap cases include, in order to improve the drawability of a wound film, Japanese Utility Model Publication No. 52-35219 (Plastic sheet packaging paper container), Japanese Utility Model Publication 55-. No. 53460 (paper box for storing packaging film), Shokai 60-1482
As seen in Japanese Patent Publication No. 43 (container for packaging film), a case front plate is formed to have a narrow width, and in order to facilitate taking out of the film, Japanese Utility Model Laid-Open No. 61-188933 (Aluminum foil with drawer port) Roll container), Shokai 61
No. 193,015 (wrap film roll container with outlet), Japanese Utility Model Laid-Open No. 4-89734 (wrap film take-out port), in which a bent portion having a guide function is formed, or a roll-shaped film is unintentionally popped out. As a proposal to prevent
48193 (Paper container of rolled film), JP-A-2-152650 (roll-stop distribution container)
Further, it has been proposed to apply a varnish on the front surface of the carton plate to prevent film rewinding. According to the above-mentioned known example, although the tentative solution to the specific problem is presented, the drawability of the film still remains,
It should be solved from the viewpoint of preventing rewinding, and that it has not been evaluated as a proposal to solve all roll film pop-outs at once, and economically in terms of robustness and manufacturing cost. I cannot deny that there is a point.

[0003]

DISCLOSURE OF THE INVENTION The present invention improves the drawability of a roll-shaped film by forming notches in the front wall portion and the folding portion of a conventional lap carton, respectively, to thereby improve the drawability of the roll-shaped film. It is intended to provide a wrap carton that prevents rewinding and popping out of the carton.

[0004]

[Means for Solving the Problems] To specifically describe the means for solving the above problems, a lap carton according to the present invention includes a carton body including a front wall portion, a bottom portion, a rear wall portion, and both side wall portions, and In a saw-toothed wrap carton consisting of a lid portion connected to the rear wall portion through a fold, a pair of film sandwiching pieces are cut and formed above both sides of the front wall portion,
A fold portion having a fold between the lower ends of the respective cuts is extended to the upper edge of the front wall portion, and a pressing piece protruding toward the fold portion is cut and formed in the central portion of the upper edge, and the cut portion is formed. A formed film sandwiching piece and a folded portion excluding the sections of the pressing piece are attached to the inner surface of the front wall portion, and the pair of film sandwiching pieces are cut and formed so as to face each other. It is also possible that the lower end of the notch does not reach the fold between the front wall portion and the side wall portion, and further, at both ends of the fold between the front wall portion and the fold portion, a side edge of the drawer film is formed. It is also preferable that the film holding piece is cut and formed so as to be engaged.

[0005]

As shown in FIGS. 3 and 4, when holding the end portion of the roll-shaped film and pulling it out to a desired length, both side edges of the film are engaged with the film holding piece, and the holding piece is inserted into the lower surface of the film. State. When the film is pulled out in this state, the upper edge of the lower front wall and the pressing piece make contact with the lower surface of the film, and the side edges of the film are the film sandwiching pieces that are cut and formed at both ends of the fold between the front wall and the folding part. The film is pulled out while touching. Since the upper edge of the front wall is at a low position and the pressing piece sneaks into the lower surface of the film immediately before being peeled from the roll, the film is stably pulled out, and the pressing piece suppresses the roll out. Further, after the film is cut, the film tries to rewind due to an impact at the time of cutting, but the film holding piece and the pressing piece suppress the return.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a development view of the whole as seen from the front surface, and FIG. 2 is a view of the whole as seen from the back surface when a folding portion is attached to the inner surface of the front wall portion. Exploded state explanatory view, FIG. 3 is an open state explanatory view, FIG. 4 is a usage state explanatory view, FIG. 5 is a sectional view taken along the line AA of FIG. 3, and FIG.
3B are cross-sectional views taken along line BB of FIG.

For the sake of explanation, the wrap carton shown in the drawings relates to a carton for storing a synthetic resin film wound in a roll on a paper tube, and the film is provided at the front part of a general home, a store or the like whenever necessary. Of the so-called wrap film for food packaging, which is mainly used for packaging foods such as seafood, vegetables, fruits, etc. Therefore, the present invention is not limited to the above-mentioned film, but can be applied to aluminum foil, wax paper, and other roll-shaped packaging materials for homes or stores.

In FIG. 1, the carton blank of the lap carton of the present invention is made of rectangular cardboard, and the front wall portion 1, the bottom portion 3, the rear wall portion 4 and the main body side wall portion 13 are connected through a fold line 7, It is a basic member that constitutes the carton body. Further, a cover lid portion 5 and a front lid portion 6 which form a lid portion are connected to the rear wall portion 4 through folds 7, respectively. Above both sides of the front wall 1,
The pair of film sandwiching pieces 8 are formed by the notches 10, and the space between the lower ends 10a of the notches 10 is the front wall portion 1.
And a fold 7a between the folding portion 2 and. Also, this fold 7a
When the folding part 2 is attached to the inner surface of the front wall part 1, it becomes the upper edge of the front wall part 1 and is located lower than the other wall parts constituting the carton body. On the other hand, in the central portion of the upper edge of the front wall portion 1, the folding portion 2
The pressing piece 9 protruding to the side is formed by the notch 11, and the folded portion 2 excluding the film holding piece 8 and the pressing piece 9 is formed.
Is attached to the inner surface of the front wall portion 1. Further, the lower end 10a of the notch 10 is provided so as not to reach the folds 18 of the front wall portion 1 and the front wall attachment piece 12.

In the vicinity of the lower end 10a which is both ends of the fold 7a between the front wall portion 1 and the folding portion 2, the film is sandwiched so that both side edges of the film are engaged with the film sandwiching piece. With respect to No. 8, it is possible to make a proper engagement by cutting in a circular arc shape. The pressing piece 9 is also cut into a semicircular or elliptical shape to give a moderate resistance on the lower surface of the film.
The side wall of the main body having the front wall portion 1, the bottom portion 3, the rear wall portion 4, the covering lid portion 5 and the front lid portion 6 each having a front wall attaching piece 12 via a fold 18 and a folding piece 14 via the fold 18. The portion 13, the rear wall side wall portion 15, the side lid portion 16 and the front lid sticking piece 17 are extended. In the figure, 19 is a zipper wire for cutting, 21 is a cutting portion for opening, 20 is a sawtooth for cutting (see FIG. 2),
Each is attached to the front lid portion 6.

In the assembly of the present invention, as shown in FIG. 2, the folding portion 2 is internally folded at the fold line 7a and attached to the inner surface of the front wall portion 1, whereby the front wall portion 1 is set at a low position.
The film holding piece 8 and the pressing piece 9 are in a raised state. Further, the bottom part 3, the rear wall part 4, and the cover part 5 are sequentially inserted through the folds 7.
Then, the front lid 6 is bent, and at the same time, the rear wall side wall portion 15 is overlapped and pasted through the front wall sticking piece 12 stuck to the back surface of the main body side wall portion 13 to assemble the carton main body. Side cover 1
6 A front wall sticking piece 17 is stuck to the back surface to assemble a lap carton with a lid, and the roll-shaped film F is placed in a fixed position. After that, the cut-out portion 21 connected to the front lid portion 6 via the zipper wire is overlaid on the front wall portion 1 to complete the product.

In use, the front lid portion 6 can be opened and closed by cutting the cutting portion 21 from the zipper wire 19, so that the end portion of the rolled film as shown in FIG. It may be pulled out to a desired length, and at the time of pulling it out, both side edges of the film are engaged with the film holding piece 8, and the holding piece 9 is properly inserted into the lower surface of the film (see FIGS. 3 and 4). . Once the film has been drawn to the desired length, it will be cut with the cutting saw teeth 20.

The film sandwiching pieces 8 are opposed to each other on both sides of the front wall portion 1 by the notches 10 at the side ends, and as shown in FIG. 4, the film sandwiching pieces 8 are engaged so as to sandwich the film F reliably and normally, and at the same time. The resistance of the film F can prevent the film F from unintentionally rewinding, and the film F can be formed by projecting in a semicircular arc as shown in the figure.
Is introduced smoothly, and the guide function is exhibited in the subsequent withdrawal, which is preferable. Although not shown, the shape of the film sandwiching piece 8 is not limited to the semicircular shape, and may be, for example, a trapezoidal shape. It does not matter if it has a guide function.

The pressing piece 9 is a fold 7 at the center of the upper edge of the front wall 1.
Although it is formed by the notch 11 along a, it is optimal that the shape is a semicircle, or an arc of a semicircle is rounded as a whole to be an ellipse close to an ellipse. The presser piece 9
Is formed at the central portion of the upper edge of the front wall portion 1 set at a low position as shown in FIG. 4, so that when pulling out the film F having adhesiveness and self-adhesiveness, By inserting the pressing piece 9 (see FIG. 6), the film F is peeled off from the roll under a preferable condition while being pushed up from the lower surface direction.

The proper peeling function is that even if the roll-shaped film F is continuously used and the remaining amount of the film is reduced, the front wall portion 1 is set to the low position and the film holding piece 8 is provided. It is held until its final use by the clamping, introducing and guiding functions. Further, the folding piece 1 extending inwardly through the fold line 18 at the upper edge of the main body side wall portion 13 of the carton P.
Since No. 4 is covered with the both end portions of the roll-shaped film F, it prevents the film F from popping out even if the film F rolls and swings at the time of drawing.

[0015]

Since the present invention has the above-mentioned structure, it has the following effects. The film sandwiching piece 8 smoothly draws out the film F, has a guide function at the time of pulling out, and can reliably prevent the rewinding of the residual film F, which is likely to occur after the pulling film is cut, due to the engagement resistance due to the sandwiching together with the pressing piece 9. . Especially in the case of wrapping film for food packaging mainly made of polyvinylidene chloride etc., because of its adhesiveness and self-adhesiveness, if the result of rewinding without being able to normally cut after pulling out once, the entire film The rewinding prevention effect of the present invention is useful, because it is wrinkled and cannot be reused and is wasted. Since the film F to be drawn out can be constantly pushed up by the pressing piece 9 having a semicircular or oblong shape, the film peeling from the smooth roll is promoted, there is no fear of peeling failure, or diagonal cutting, The film can be pulled out easily and the roll can be prevented from popping out. In addition to the effect brought by the film holding piece 8 and the pressing piece 9, the front wall portion 1 having the increased strength due to the inner folding of the folding portion 2 is set at a low position, so that the drawability of the film F is further improved. To do. Moreover, since the film holding piece 8 and the pressing piece 9 can be formed by the notches 10 and 11, the existing equipment can be used as it is, and the mass productivity and the economical efficiency are excellent.

[Brief description of drawings]

[Figure 1] Overall development view seen from the surface

FIG. 2 is an explanatory view of the entire developed state as seen from the back surface when the folding portion is attached to the inner surface of the front wall portion.

FIG. 3 is an explanatory view of a lid opening state

FIG. 4 is an explanatory view of a usage state

5 is a sectional view taken along the line AA of FIG.

6 is a sectional view taken along line BB of FIG.

[Explanation of symbols] P carton F film or roll film 1 front wall part 2 folding part 3 bottom part 4 rear wall part 5 cover lid part 6 front lid part 7 fold 7a fold 8 film gripping piece 9 pressing piece 10 notch 10a notch Lower end 11 Cut 12 Front wall sticking piece 13 Main body side wall 14 Folding piece 15 Rear wall side wall 16 Side lid 17 Front lid sticking piece 18 Fold 19 Zipper wire for cutting 20 Serrated teeth 21 Cutout

Claims (3)

[Claims] 1. A saw-toothed wrap carton comprising a carton body composed of a front wall portion, a bottom portion, a rear wall portion and both side wall portions, and a lid portion connected to the rear wall portion via a fold, wherein A pair of film sandwiching pieces are cut and formed on both upper sides of the wall portion, and a folding portion having a crease between lower ends of the respective cut portions is extended to an upper edge of the front wall portion, and a central portion of the upper edge is formed. A lap carton formed by notching a pressing piece projecting to the folding part side and adhering the folding part excluding the cut-out formed film sandwiching piece and the section of the pressing piece to the inner surface of the front wall part. 2. The wrap according to claim 1, wherein the pair of film holding pieces are cut and formed so as to face each other, and the lower ends of the cuts do not reach a fold between the front wall portion and the side wall portion. carton. 3. The wrap carton according to claim 1, wherein the film sandwiching piece is cut and formed so as to engage with side edges of the drawer film at both ends of the fold between the front wall portion and the folding portion. .