JPH0789535A - Brick-form paper container - Google Patents

Abstract

PURPOSE:To provide a brick-form paper container of which the opening operation is easy, and which can stably pour out a contained liquid. CONSTITUTION:A pouring out port 6 made of a plastic is attached on the top surface 3 of a paper container main body 2. Since a pouring out port can be formed by simply opening the pouring out port 6 without cutting the container main body by scissors, the opening operation is easy. In addition, since a pouring out port of a fixed size can be formed, a contained liquid can be stably poured out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brick type paper container used for containing a liquid such as a beverage.

[0002]

2. Description of the Related Art Conventionally, a brick-shaped paper container C having a rectangular parallelepiped shape as shown in FIG. 6 is generally widely used as a paper container for storing liquids such as juices and alcoholic beverages.

[0003]

By the way, when the liquid inside is poured out from the above-mentioned brick type paper container C, the side ear portion D is raised as shown in FIG.
Since the portion shown by is cut with scissors and opened, and then the pouring opening is widened, there is a problem that the opening operation is troublesome and lacks in convenience. In addition, since the ear portion D is cut with scissors, the pouring port may be formed too large or too small, which makes it difficult to perform the pouring operation in a stable manner. Especially, when the paper container is large, the pouring operation is much more difficult. There is also the problem of becoming difficult.

The present invention has been made in view of the above problems, and an object thereof is to provide a brick-type paper container which is easy to open and can stably pour out the liquid therein. To do.

[0005]

In order to achieve the above object, a brick type paper container of the present invention is provided with an upper closing part and a bottom closing part which are respectively horizontal above and below a rectangular tube-shaped body, and at the same time, the top surface. It is characterized by comprising a brick-type paper container main body in which a mounting hole for a spout is provided in a part thereof, and a plastic spout mounted in the mounting hole.

[0006]

In the brick-type paper container of the present invention described above, a pouring port can be formed by opening the pouring port, and the pouring port of a certain size acts so as to stably pour out the liquid therein.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a brick type paper container according to the present invention.
Is an upper closing part 2 which is horizontal above and below the rectangular tubular body.
a and a bottom closing portion 2b and a paper container body 2 provided with a mounting hole 4 for the spout close to the corner of the top surface 3, and a flat spout 6 mounted in the mounting hole 4. It consists of

The paper container body 2 is formed by assembling the blank 5 shown in FIG. The blank 5 is made of, for example, a packaging material obtained by laminating polyethylene / paperboard / polyethylene / aluminum foil / polyethylene in this order, and includes a wide side panel 11, narrow side panels 21 and 31, and pasted side panels 41 and 51. Has a narrow side panel 21,
31 is the wide side panel 11 via the ruled lines a and b, respectively.
The narrow width side panel 21 and the bonding side panel 41 are connected via a ruled line c, and the narrow width side panel 31 and the bonding side panel 51 are connected via a ruled line d. ing.

Further, upper closing panel portions P1, P2, P3, P4 constituting upper closing portions above and below the wide side panel 11, the narrow side panels 21 and 31, and the bonding side panels 41 and 51, respectively. P5 and bottom closing panel portions T1, T2, T3, T4 constituting the bottom closing portion
T5 is serially installed. And the upper closure panel portion P
2 is an upper closed panel portion P through ruled lines a and c, respectively
1 and P4, the bottom closing panel portion T2 is connected to the bottom closing panel portions T1 and T4 via ruled lines a and c, respectively.
And the upper closing panel portion P3 is connected to the upper closing panel portions P1 and P via ruled lines b and d, respectively.
5, the bottom closing panel T3 is connected to the bottom closing panels T1 and T5 via ruled lines b and d, respectively.

Further, a hemming (folding) area A defined by an inverted ruled line α is provided near the right end of the right side surface side panel 51, the upper closing panel portion P5 and the bottom closing panel portion T5, and the left side. To the left end of the pasting side panel 41, the upper closing panel portion P4 and the bottom closing panel portion T4, there is provided a pasting area B where no horizontal ruled lines are provided.

The upper closed panel portion P1 includes a lid panel 12 connected to the wide side panel 11 via a ruled line e and an outer rib panel 1 connected to the lid panel 12 via a ruled line f.
On the other hand, the bottom closing panel portion T1 is also constructed by connecting the bottom panel 14 and the outer rib panel 15 in the same manner as the top closing panel portion P1.

The upper closing panel portion P2 has an isosceles right triangle triangular folding panel 22 that is connected to the narrow side panel 21 on the bottom side thereof through a ruled line g. Small fold panels 23, 23 in the shape of a right-angled isosceles triangle are continuously provided on the side via ruled lines h, i.
Further, inner rib panels 24, 24 are connected to each small-fold panel 23 via ruled lines j, k, respectively, and each inner rib panel 24 is connected to each other via a ruled line l. On the other hand, the bottom closing panel portion T2 also has the same shape as the upper closing panel portion P2, and is a right-angled isosceles triangular fold panel 2
5, small fold panels 26, 26 having an isosceles right triangle shape, and inner rib panels 27, 27 are arranged in series.

The upper closing panel portion P3 is composed of a folding panel 32, small folding panels 33 and 33, and inner rib panels 34 and 34, which are connected to each other in the same manner as the upper closing panel portion P2. The closing panel portion T3 is also constructed by connecting a folding panel 35, small folding panels 36, 36 and inner rib panels 37, 37 in the same manner as the upper closing panel portion P2.

The upper closing panel portion P4 includes a bonding lid panel 42 that is connected to the bonding side panel 41 via a ruled line m, and a bonding outer rib panel 43 that is connected to the bonding lid panel 42 via a ruled line n. On the other hand, on the other hand, the bottom closing panel portion T4 is also formed by connecting the pasting bottom panel 44 and the pasting outside rib panel 45 in the same manner as the top closing panel portion P4. Note that the ruled lines in the horizontal direction that partition these panels 41 to 45 are formed so as to leave the above-mentioned bonding area B. The attachment hole 4 for the spout is provided on the lower right side of the bonding lid panel 42. The mounting hole 4 is formed in such a shape that an opening region in a spout described later is fitted therein, and further, two sides forming the tip of the spout are formed so as to be parallel to the ruled line c and the ruled line m. . Furthermore, the center line of the spout is the bonded lid panel 42.
Is formed so as to be located on a line β of 45 degrees (γ in the figure) from the lower right corner of the.

The upper closed panel portion P5 has a ruled line o.
Pasting lid panel 5 which is continuously provided to the pasting side panel 51 via
2 and the pasting outside rib panel 53 which is continuously provided to the pasting lid panel 52 through the ruled line p, while the bottom closing panel portion T5 is also the same as the top closing panel portion P5. 54 and a bonding outer rib panel 55 are arranged in series. In addition, each of these panels 51-5
The ruled lines in the horizontal direction that partition 5 are formed so as to leave the hemming area A.

The spout 6 is formed by injection molding low density polyethylene or the like into a home base mold shown in FIGS. 3 and 4, and has a flange portion 62 around the opening region 61, which is lowered. Furthermore, a hinge lid 63 is defined in the opening region 61 by a thin portion q along the periphery thereof. Here, when viewed in plan, the opening region 61 projects in a mountain shape by the oblique sides 61a and 61b orthogonal to each other, and the flange portion 62 has the oblique side 62 parallel to the oblique sides 61a and 61b.
a and 62b. In addition, the thin portion q is the opening region 6
1 has a substantially pentagonal shape along the circumference thereof.

On the upper surface of the hinge lid 63, a pillar 64 is erected at the tip of the mountain-shaped protrusion, and a pull ring 65 parallel to the hinge lid 63 is provided through the pillar 64. The pull ring 65 is a pair. The hinge connection 6 is provided by the thin connecting portion 66.
Temporarily fixed to 3. The thin portion q is partially thicker on the side opposite to the chevron-shaped protrusion, and this side constitutes the hinge portion 67 when the hinge lid 63 is opened and closed. Then, a hook 68 for locking is provided on the hinge portion 67 side of the hinge lid 63.
And a projection 69 for locking the locking hook 68 is provided on the upper right end of the opening region 61.
Further, a liquid dripping prevention piece 70 is projectingly provided at the tip of the mountain-shaped protrusion in the opening region 61. In addition, pull ring 6
5, the locking hook 67 and the liquid drop prevention piece 69 are formed low as shown in FIG. 4, and the spout 6 is flat as a whole.

Next, the order of forming the brick type paper container 1 shown in FIG. 1 from the blank 5 and the spout 6 shown in FIG. 2 will be described. First, the hemming area A from the right end of the blank 5
By shaving (removing) the double width part from the front side by half the thickness of the packaging material, the reverse ruled line α is formed at the same time, and the reverse ruled line α is folded back and adhered so that the thickness is almost the same as the original thickness. . Next, this blank 5 is applied to ruled lines a, b,
Fold by c and d, and the bonding area B on the bonding side panel 41
By combining the skived hemming-processed portion of the pasted side panel 51 with the back side of the blank 5 and heat-sealing both end portions of the blank 5 in a state in which the size by both is the same as the wide side panel 11. A rectangular tubular body is formed. By performing the end surface treatment in this manner, the cut end surface of the packaging material is not exposed inside the paper container, and therefore, moisture does not travel along the paperboard layer to weaken the packaging material or cause liquid leakage.

After forming the body as described above, the bonding lid panel 4 of the upper closing panel P4 with the body raised.
The spout 6 is inserted from the inside into the mounting hole 4 provided in 2, and the front side of the flange portion 62 of the spout 6 is heat-sealed to the inner surface of the periphery of the mounting hole 4 by ultrasonic sealing.
In this case, two orthogonal sides 62a and 62b of the flange portion 62 of the spout 6 are positioned along the ruled lines m and c, respectively. Therefore, the opening area 6 of the spout 6
The hypotenuses 61a and 61b forming the tip of 1 are substantially parallel to the ruled lines m and c that divide the bonding lid panel 42. Then, after the spout 6 is attached in this manner, it is folded and conveyed to the filling step.

In the subsequent filling step, first, the folded blank 5 is raised in the shape of a rectangular tube to close the bottom closing panels T1 to T5.
To form a bottom closure. That is, the folding panel 2
When the bottom panels 14 and the bonding bottom panels 44, 54 are folded inward at the same time when the 5, 35 are folded outward, the small folding panels 26, 26 are stacked on the folding panel 25, and the small folding panels 36, 36 are stacked on the folding panel 35. The bottom of the body is made flat by making each a triangular overlap, and then
The inner surfaces of the outer rib panel 15 and the bonding rib panels 45, 55, the inner surfaces of the inner rib panels 27, 27, and the inner surfaces of the inner rib panels 37, 37 are bonded to each other to form a linear overlapping portion. Then, the triangular overlapping portions are bent downward and bonded to the bottom portions.

After forming the bottom closing part, the liquid as the content is filled and then the upper closing part is formed by the upper closing panels P1 to P5. That is, the folding panels 22 and 32 are bent outward, and at the same time, the lid panel 12 and the bonding lid panels 42 and 52 are folded inward, so that the folding panels 22 and 23 are folded and the folding panels 32 and 33 are folded. 33 are overlapped to form triangular overlapping portions so that the upper part of the body is flattened, and then the inner surfaces of the outer rib panel 13 and the bonding rib panels 43 and 53, the inner surfaces of the inner rib panels 24 and 24, and the inner rib panel. Three
The inner surfaces of 4, 34 are bonded to each other to form a linear overlapping portion, and then the linear overlapping portion is tilted to the opposite side of the spout 6, and the triangular overlapping portions are bent downward to form narrow side surface panels 21, 31. The assembly is completed by adhering to each.

In the above-mentioned assembly procedure, an example in which the spout 6 is attached before carrying it to the filling step has been described. However, if the filling machine has a function of attaching the spout, the spout 6 in the filling step will be described. May be attached. That is, a foldable blank without the spout 6 attached is conveyed to the filling step, raised in a rectangular tube shape to form a bottom closing part, and then the spout 6 is attached, after which the filling of the contents and the top closing part are performed. Are formed.

In the brick-type paper container 1 formed as described above, the flat spout 6 is adhered to the inner surface of the paper container body 2 by the flange portion 62 which is lowered from the opening region 61 by one step. It is in a state where it hardly protrudes from the container body 2 and does not disturb the handling. Further, the spout 6 is provided in a state where the oblique sides 61a and 61b forming the tip of the opening region 61 are substantially parallel to the two sides of the corner with respect to the mounting hole 4 near the corner in the top surface 3. It is in a state of being attached to the paper container body 2.

When the liquid inside is taken out, the pull ring 65 is pulled to break the connecting portion 66, and the pull ring 65 is further pulled to separate the hinge lid 63 from the thin portion q to form a pouring port. In this case, the force concentrates on the thin portion q located at the tip of the mountain shape and the fracture starts from here, and this breaks to both sides and reaches both ends of the hinge portion 67 to open the opening. Then, when the hinge lid 63 is sufficiently lifted, as shown in FIG.
Is locked to the projection 69, and the hinge lid 63 maintains a stable open state. When this is pressed to close the hinge lid 63, the projection 71 at the tip of the pull ring is locked to the peripheral edge, the hinge lid 63 does not largely drop, and burrs caused by the separation of the thin portion q interfere with each other. As a result, the hinge lid 63 is not easily opened.

When the hinge lid 63 of the spout 6 is opened and the paper container 1 is tilted to pour the liquid, the liquid inside can be stably pour out from the spout of a certain size. In addition, in the case of the present embodiment, since the spout 6 is close to the corner portion, the liquid can be poured out to the end with almost no liquid left.

The present invention has been described in detail above with reference to an example in which the spout is mounted near the corner of the top surface. However, the spout can be mounted at any position as long as a mounting hole can be formed. It can be anywhere on the surface. Further, as the plastic spout used in the present invention, any one other than that of the above-mentioned embodiment can be used. For example, in the hinge lid type partitioned by a thin portion as in the above embodiment, the shape of the hinge lid may be circular or elliptical, or the hinge lid is provided with a fitting or screw type cap. It can be a type. In short, any known spout may be used as long as it can be attached to the attachment hole of the main body of the paper container.

[0028]

As described above, since the brick-shaped paper container of the present invention has the construction in which the plastic spout is attached to the top surface of the paper container body, it can be opened with scissors as in the conventional case. Since the spout can be formed simply by opening the spout without opening, the opening operation can be performed easily, and since the spout of a certain size is formed, the liquid inside can be stably poured out. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a brick type paper container according to the present invention.

FIG. 2 is a development view of a blank forming a brick paper container.

FIG. 3 is a plan view of a spout attached to the brick paper container shown in FIG.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is a cross-sectional view showing a spout in an open state.

FIG. 6 is a perspective view showing a conventional brick type paper container.

7 is an explanatory diagram of a method of opening the brick paper container shown in FIG.

[Explanation of symbols]

 1 Brick type paper container 2 Paper container main body 2a Top closed part 2b Bottom closed part 3 Top surface 4 Mounting hole 6 Spout

Claims (1)

[Claims] 1. A brick-type paper container body, which comprises a rectangular tubular body having upper and lower horizontal closing portions and a bottom closing portion, respectively, and a mounting hole for a spout provided in a part of a top surface thereof. And a plastic spout attached to the mounting hole.