JPH088983Y2 - Paper container - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a paper container, and more particularly to a paper container in which a liquid for beverage is enclosed.

[Conventional technology]

In general, liquids for beverages such as juice and liquor are not completely leaked and their quality is not deteriorated, so that the liquids are completely sealed in a paper container.

Conventionally, as a paper container of this type, when a paper material having thermoplastic resin laminated on both sides and a plurality of side panels is formed into a tubular shape, one having a square bottom surface and one having a rectangular bottom surface are available. .

As the bottom surface having a square shape, for example, a side surface panel having the same shape is folded along a vertical folding line, and a paper material formed in a cylindrical shape so that the bottom surface has a square shape, and the top of the cylindrical paper material. It is composed of an extended flap etc. extended from the side panel through a horizontal folding line so as to cover the open end of the side panel.
If it is a 0 ml paper container, it is set to about 70 mm and the capacity is 900 ml.
Approximately 85 mm or 95 mm for large paper containers up to 2000 ml
Is set to Further, when the extending flaps on the top are folded to cover the entire opening of the top, a pair of extending flaps facing each other are formed in a roof shape, and a liquid spout is formed on one of the extending flaps to be the roof shape. ing. And
A resealable resin-equipped spout is attached to the spout, and a liquid such as juice is spouted from the cap-spout to the outside.

On the other hand, as a rectangular bottom surface, for example, one shown in FIG. 9 is known. In FIG. 9, a paper container 1 has a pair of short-body panels 2 having a small width and a pair of long-body panels 3 having a width wider than the panels 2 and a vertical folding line 4.
The short cylinder panel 2 and the long cylinder panel 3 face each other.
The widths of the short-body panel 2 and the long-body panel 3 are set to be about 75 mm and about 90 mm for a large paper container having a capacity of 900 ml to 2000 ml, respectively.
Further, a pair of extension flaps 6 is extended from the long body panel 3 through a horizontal folding line 5, and the extension flaps 6 are inclined in a roof shape and abut each other, and also through a horizontal folding line 7. A pair of extension flaps 8 extended from the short body panel 2.
Is fixed inside, the top open end of the cylindrical paper material is sealed. A liquid spout (not shown) is formed on one of the extended flaps 6, and a resealable resin spout 9 with a cap is attached to the spout 6. Liquid such as juice is poured out.

[Problems to be solved by the device]

However, in such a conventional paper container having a square bottom surface, the liquid spout is formed on the extended flap formed in a roof shape, and therefore, the capacity is 900 ml for the convenience of assembling the paper container. The width of the side panel of a large-sized paper container of up to 2000 ml is as wide as about 85 mm or 95 mm, and there is a problem that it is difficult to hold the paper container when pouring out the liquid. In particular, children with small hands had to use both hands, and the usability was poor. In addition to this, the width of the side panel is approximately
Since it is about 85 mm or 95 mm, there is a problem that it is difficult to store the paper container in the pocket when the space provided in the refrigerator is small.

Further, in the case of a large-sized paper container having a rectangular bottom, the width of the short body panel 2 can be reduced to 70 mm, but the extended flap 6 in which the liquid spout is extended from the long body panel 3 is used.
Since it is formed on one side, the short body panel 2 must be gripped when the liquid is poured out, and the long body panel 3 having a long width is required.
Therefore, there is a problem that it is difficult to grip the paper container as much as the short body panel 2 is separated. Further, when the long barrel panel 3 is gripped and the liquid is poured out, it can be easily gripped, but the hand state (pouring state) at the time of pouring the liquid becomes unnatural. .

Therefore, the present invention provides a large paper container that can be easily grasped by a child and can pour out a liquid in a natural grasping state, and can also be easily stored in a door pocket of a refrigerator. It is intended to be provided.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is a paper container for enclosing a liquid, in which thermoplastic resin is laminated on both sides and a vertical folding line is provided from one end to the other end. A plurality of short cylinder panels having a narrow body width and a long body panel having a wider body width than the panels formed on a continuous paper material in a rectangular shape and having one end joined to the other end to form a tubular shape. Side panels, a pair of extension flaps extended from the short body panel through the transverse folding line together with the thermoplastic resin so as to cover the open ends of the top or bottom of the tubular paper material, and the top side extension flaps. A spout for liquid pouring formed on one side and a thermoplastic resin through a horizontal folding line from the long body panel so as to cover the opening end of the top or bottom of the tubular paper material, Triangular hula that is divided into triangles through fold lines And a trapezoidal notch formed at one end of the bottom triangular flap, and a T-shaped notch formed at one end of the top triangular flap. When the thermoplastic resin is provided in the T-shaped and trapezoidal notches and the triangular flaps on one side and the other side of the top and bottom are folded from the horizontal folding line to cover the entire opening of the top and bottom, the trapezoidal shape and T It is characterized in that the thermoplastic resin provided in the letter-shaped notch is folded back by the tip of the triangular panel on the other side to wrap the tip.

[Action]

In the present invention, a spout for liquid pouring is formed on one of the top side extended flaps extended from the short body panel, and one of the top side and bottom side triangular flaps extended from the long body panel is formed. When T-shaped and trapezoidal notches with a thermoplastic resin are formed on the top and bottom, and one side and the other side triangular flaps are folded from the horizontal folding line to cover the entire top and bottom openings. The thermoplastic resin provided in the trapezoidal and T-shaped notches is folded back by the tip of the triangular panel on the other side to wrap the tip. Therefore, the width of the short body panel of a large paper container that encloses a liquid of about 900 ml to 2000 ml is about 65 to 80 mm and the width of the long body panel is about 85 mm to 10 mm.
It becomes 0 mm, and the liquid is poured out while holding the long body panel separated by the short body panel having a small width. As a result, even a child can easily grasp the liquid and the liquid can be ejected in a natural grasping state (pouring state). Further, since the width of the short body panel is small, the paper container can be easily stored even when the door pocket provided in the refrigerator is small.

〔Example〕

 Hereinafter, the present invention will be described with reference to the drawings.

1 to 8 are views showing an embodiment of a paper container according to the present invention.

First, the configuration will be described. In FIG. 1, 11 to 14 are a short body panel and a long body panel as side panels,
These short body panels 11 and 13 and long body panels 12 and 14 are laminated on both sides with a thermoplastic resin, and are formed in a rectangular shape on a paper material P continuous from one end to the other through vertical folding lines 15 to 18. . A joining flap 20 is defined on the other end side of the paper material P through a vertical folding line 18 and a vertical line 19, and the joining flap 20 makes the paper material P into a tubular shape as shown in FIG. Then, one end of the paper material P is joined to the other end. Also, short body panels 11, 13
And the long body panels 12 and 14 are alternately formed on the paper material P so as to face each other when the paper container is assembled, and the widths of the short body panels 11 and 13 are 900 ml to 2000 ml in the case of a large paper container. The long body panels 12 and 14 are formed to have a width of about 85 to 100 mm, and the long body panels 12 and 14 have a width smaller than that of the short body panels 11 and 13. Further, extending flaps 25 to 28 are extended together with the thermoplastic resin through the horizontal folding lines 21 to 24 on the short body panels 11 and 13, and these extending flaps 25 to 28 are formed into a tubular shape by the joining flap 20. A pair of unillustrated top-side and bottom-side open ends formed on the laminated paper materials P are covered. Further, triangular flaps 33 to 36 are provided on the long body panels 12 and 14 together with the thermoplastic resin via the horizontal folding lines 29 to 32,
These triangular flaps 33 to 36 are partitioned in a triangular shape through diagonal folding lines 37 to 44, and folded back by the above-mentioned extended flaps 25 to 28 to cover the top side and bottom side open ends of the paper material P as a pair. It is like this.

On the other hand, a spout 45 is formed in the top side extending flap 25, and the liquid is spouted from this spout 45. In addition, a T-shaped notch 46 is provided at the tip of the top side extending flap 35.
Is formed in the notch 46.
47 is provided, and this resin 47 extends from the thermoplastic resin a on the side of the triangular flap 35 as shown in FIG. Further, a trapezoidal notch 48 is formed at the tip of the bottom side extending flap 35, and a thermoplastic resin 49 is provided in the notch 48, and this resin 49 also has a triangular flap 36. It is extended from the thermoplastic resin on the side.

In addition, 50 in FIG. 2 is a spout for resealing the paper container.
It is a spout with a cap, which is attached to 45, and which pours liquid from the inside of the paper container by opening and closing a cap 50a attached to the tip.

 Next, the operation will be described.

In order to assemble a paper container as shown in FIG. 1 from the paper material P having such a structure, first, the short-body panels 11, 13 and the top-body panels 12, 14 are bent along the vertical folding lines 15-18. Go to the joining flap 20 and put the paper material P of this flap 20 part.
The paper material P is formed into a tubular shape by sticking it to one end side of the paper material P, that is, the short body panel 11 so as to hide a part of the paper material P. Then, as shown in FIG.
26, 28 and the triangular flaps 34, 36 are folded along the horizontal folding lines 22, 24, 30 and 34 into an inner package of the tubular paper material P.
At this time, the thermoplastic resin 49 of the triangular flap 36 is folded back to the lateral folding line 32 side by the tip end portion 34a of the triangular flap 34 and is wrapped by this resin 49 so as to project inward of the cutout portion 48. When it is further bent, as shown in FIG. 5, the extended flaps 26 and 28 are folded so as to cover the entire surface of the bottom opening, and the triangular flap 34, with the tip portion 34a protruding inwardly of the cutout portion 48, 36 is bent in a triangular shape by diagonal fold lines 39, 40, 43, 44 and folded so as to cover the extended flaps 26, 28. Then, the bottom portion of the paper material P is hermetically sealed by heat-sealing the thermoplastic resin 49 in such a state that the front end portion 34a is wrapped.

Next, the extended flaps 25 and 27 and the triangular flap 33,
35 is folded along the horizontal folding lines 21, 23, 29 and 31 into an inner package of the tubular paper material P. At this time, triangular flaps 33, 35
Is folded along the oblique folding lines 37, 38, 41, 42 and is covered by the extending flaps 25, 27 so as to cover the entire surface of the top opening end of the paper material P together with the extending flaps 25, 27. The panels 33, 35 are folded as shown in FIG. Therefore, as shown in FIG. 7 (enlarged portion A in FIG. 6), the thermoplastic resin 46 of the triangular flap 35 is folded back toward the horizontal folding line 31 by the tip portion 33a of the extended flap 33, and the resin It is wrapped by 47 and protrudes inwardly of the notch 46. By sealing the top in this state, the extended flaps 25 and 27 are formed to have a roof shape as shown in FIG. 2 and the top is sealed. Next, the cap-equipped spout 50 is attached to the spout 45 by heat-sealing, but the attaching step can be performed before, after, or after filling the bottom heat-sealing, as is conventionally known.
A liquid is put in the paper container at a predetermined manufacturing stage of the paper container.

In the present embodiment, the top side extending flap 25 extending from the short body panel 13 is formed with a spout 45 for pouring liquid, and the top side and bottom side triangular flaps extending from the long body panel 12 are formed. Thermoplastic resins 47 and 49 are provided on 35 and 36
When forming notches 46 and 48 in the shape of a letter and a trapezoid and folding the top and bottom triangular flaps 33 to 36 from the horizontal folding lines 29 to 32 to cover the entire top and bottom openings, thermoplastic resin 47, 49 Is folded back by the tip portions 33a, 34a of the triangular panels 33, 34 so as to wrap the tip portions 33a, 34a, the spout 45 is formed in the roof-shaped extended flap 25 on the short body panel 13 side. Can be about 900ml-2000m
The width of the short body panels 11 and 13 is about 65 to 80 mm, and the width of the long body panels 12 and 14 is about 85 mm to fill the liquid of the volume of l.
Can be ~ 100mm. Therefore, the liquid can be poured out by gripping the long body panels 12 and 14 separated by the short body panels 11 and 13 having a small width. As a result, even a child can easily hold the liquid and the liquid can be poured out in a natural holding state. In addition to this, the width of the short body panels 11, 13 can be about 65-80 mm,
Even if the refrigerator has a small door pocket, the paper container can be easily stored.

Further, the tops and bottoms of the paper materials P are hermetically sealed by wrapping and sealing the projecting portions 33a, 34a with the thermoplastic resins 47, 49. Further, the joining flap 20 has a conventional cross-sectional shape of the paper. Since they are joined by a so-called skive seal so as to be hidden, it is possible to seal a highly drinkable beverage such as sake, whiskey, juice or the like in the paper material P with good liquid tightness.

In this embodiment, the thermoplastic resins 47 and 49 are extended from the thermoplastic resin a or the like on the side of the triangular panels 35 and 36 to the cutout portions 46 and 48, but the invention is not limited to this and is shown in FIG. As described above, the thermoplastic resin 51 may be newly provided.

〔effect〕

According to the present invention, the top side extending flap extended from the short body panel is formed with the spout for pouring liquid, and
T-shaped and trapezoidal notches with thermoplastic resin are provided on the top and bottom triangular flaps extending from the long body panel, and the top and bottom triangular flaps are folded from the horizontal folding line to form the top. Since the thermoplastic resin folds the tip of the triangular panel and wraps the tip when covering the entire opening of the bottom, the spout should be formed on the roof-shaped extended flap on the end body panel side. In addition, the width of the short body panel can be about 65-80 mm and the width of the long body panel can be about 85 mm-100 mm for enclosing a large volume of liquid of about 900 ml-2000 ml. For this reason, the liquid can be poured out by grasping the long body panel separated by the short body panel having a small width. As a result, even a child can easily hold the liquid and the liquid can be poured out in a natural gripping state (pouring state). In addition, since the width of the short body panel can be set to about 65 to 80 mm, the paper container can be easily stored even if the refrigerator has a small door pocket.

In addition, since the top and bottom of the paper material are sealed by wrapping the protruding part with a thermoplastic resin and sealing it, beverages such as sake, whiskey, and juice that have high penetrability into the paper material are liquid-tight. Can be well encapsulated.

[Brief description of drawings]

1 to 8 are views showing an embodiment of a paper container according to the present invention. FIG. 1 is a development view thereof, FIG. 2 is a perspective view thereof, and FIG.
FIG. 4 is a configuration diagram of the thermoplastic resin formed in the cutout portion, FIG. 4 is a state diagram showing a state in which the bottom surface is folded, FIG. 5 is a diagram showing a state in which the bottom portion is folded, and FIG. The figure shows a state where the top side triangular panel is laminated, FIG. 7 is a cross-sectional view showing the state where the projecting part of the top side triangular panel is wrapped in thermoplastic resin, and FIG. 8 is formed in the cutout portion. FIG. 9 is a constitutional view showing another embodiment of the thermoplastic resin thus prepared, and FIG. 9 is a perspective view of a conventional paper container. 11,13 …… Short body panel (side panel), 12,14 …… Long body panel (side panel), 15-18 …… Vertical fold line, 21-24,29
~ 32 …… Horizontal folding line, 25 ～ 28 …… Extended flap, 33 ～ 36 ……
Triangular flap, 33a, 34b ... Tip, 37-44 ... Diagonal fold line, 45 ... Spout, 46, 48 ... Notch, 47, 49 ...
Thermoplastic resin.

Claims (1)

[Scope of utility model registration request] 1. A paper container for enclosing a liquid, wherein a thermoplastic resin is laminated on both sides, and a paper material continuous from one end to the other end through a vertical fold line is formed into a rectangular shape. When joined to the other end to form a tube, a plurality of side panels facing each other with a short body panel having a narrow body width and a long body panel having a wider body width than the panel, and a top portion or a bottom portion of the tubular paper material. A pair of extension flaps extended together with the thermoplastic resin from the short body panel through the horizontal folding line so as to cover the opening end, and a spout for liquid pouring formed on one side of the top extension flap. , A triangular flap that extends from the long body panel along the thermoplastic resin through the horizontal folding line so as to cover the open end of the top or bottom of the tubular paper material, and is divided into triangles through the diagonal folding line, and the top Formed on the tip of one side of the side triangular flap A T-shaped cutout portion and a trapezoidal cutout portion formed on one end of the bottom side triangular flap, and the T-shaped and trapezoidal cutout portions are formed of a thermoplastic resin. When the triangular flaps on one side and the other side of the top and bottom are folded from the horizontal folding line to cover the entire opening of the top and bottom, the thermoplastic resin provided in the trapezoidal and T-shaped notches is A paper container characterized by being folded back by the tip portion of the triangular panel on the side so as to wrap the tip portion.