JP4426224B2 - Packaging container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging container.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in packaging containers that contain liquid foods such as milk and soft drinks, there are provided those in which a lid (lid) that can be opened and closed is provided on the top wall of the packaging container body (see, for example, Patent Document 1). .)
[0003]
FIG. 2 is a perspective view showing a main part of a conventional packaging container.
[0004]
In the figure, reference numeral 11 denotes a packaging container body formed by molding a packaging material and having a substantially rectangular shape. The packaging container body 11 includes a front wall a, a rear wall b, and two side walls. c, d and a bottom wall (not shown). The bottom wall is formed by folding and sealing the packaging material.
[0005]
A lid 12 is integrally attached to the upper end of the packaging container body 11 by molding a resin, for example, a polyethylene resin. The lid body 12 has a substantially rectangular shape corresponding to the shape of the packaging container body 11, and a collar portion 13 formed over the periphery of the lid body 12 and a top wall portion covering the upper edge of the collar portion 13 14. The top wall portion 14 has a step structure, and a lower step portion 15 having a triangular shape at one of the four corner portions has an “L” shape at the other corner portion on the diagonal line. The lower step portion 16 having a shape is formed with a flat upper step portion 17 in portions other than the lower step portions 15 and 16.
[0006]
A pull tab 18 for forming a spout (not shown) having a substantially rhombus shape is formed over substantially the entire upper step portion 17 and is adjacent to the pull tab 18. The straw insertion part 19 for inserting the straw which is not shown in figure is formed.
[0007]
On the periphery of the spout in the pull tab 18 is formed a fracture portion formed by making the resin thinner than the other portions. A hinge portion 22 is formed on the lower step portion 15 side of the pull tab 18. A knob portion 23 is integrally formed on the lower step portion 16 side. Therefore, when the knob 23 is picked and the pull tab 18 is pulled up in the direction of the arrow 27 formed on the pull tab 18, the fracture portion is broken and a spout is formed. In addition, you can drink liquid food directly.
[0008]
The claw piece 25 is formed in the lower step portion 15 so as to protrude from the upper step portion 17, and after the spout is formed, the claw piece 25 is placed at a predetermined position of the pull tab 18 against the elasticity of the resin. Can be locked. Therefore, the pull tab 18 can be held with the spout opened.
[0009]
Further, the straw insertion part 19 is formed by making the resin thinner than other parts, and the straw insertion part 19 is opened by piercing the straw insertion part 19 with the tip of the straw, and the liquid is passed through the straw. You can drink food.
[0010]
[Patent Document 1]
JP-A-2002-2752
[Problems to be solved by the invention]
However, in the conventional packaging container, although there is the straw insertion part 19, the pull tab 18 is pulled up to open the spout, and the straw is inserted into the spout and may be drunk. When opening the straw insertion part 19, the straw is inserted into the straw insertion part 19 by breaking the resin at the tip of the straw.
[0012]
An object of the present invention is to solve the problems of the conventional packaging container and to provide a novel packaging container that can smoothly drink liquid food using a straw.
[0013]
[Means for Solving the Problems]
For this purpose, the packaging container of the present invention includes a packaging container body and a lid body that is integrally attached to the upper end of the packaging container body and includes a top wall portion.
[0014]
And the opening member is integrally formed in the predetermined location of this cover body.
The unsealing member projects toward the front wall of the packaging container body from a straw insertion portion for forming a straw insertion port having a triangular shape, and an inverted “V” -shaped portion of the straw insertion portion. And a protrusion formed by being raised through a tamper-proof portion in a direction perpendicular to the lid.
And the inner periphery of the said straw insertion port supports three points | pieces of the straw inserted in the straw insertion port.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0021]
FIG. 1 is a perspective view of a packaging container according to an embodiment of the present invention, FIG. 3 is a perspective view showing a main part of the opened packaging container according to the embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. FIG. 5 is a perspective view showing a state in which a straw is inserted into the straw insertion port in FIG. 5, and FIG. 5 is a diagram showing a relationship between the straw insertion port and the straw in the embodiment of the present invention.
[0022]
In the figure, reference numeral 11 denotes a packaging container body formed by molding a packaging material and having a substantially rectangular shape. The packaging container body 11 includes a front wall a, a rear wall b, two side walls c, d, and A bottom wall e is provided. The bottom wall e is formed by folding and sealing the packaging material. The packaging material includes a paper base (not shown), a first resin film such as a polyethylene resin coated on the paper base to form the outermost layer, and a polyethylene resin coated on the paper base to form the innermost layer. A barrier layer having a gas barrier property is formed adjacent to the paper base as necessary.
[0023]
The packaging container main body 11 is filled with liquid food as a content, and a lid 32 is integrally attached to the upper end of the packaging container main body 11 by molding a resin, for example, polyethylene resin. Is formed.
[0024]
For this purpose, a packaging container manufacturing apparatus (not shown) is provided.
[0025]
In the packaging container manufacturing apparatus, the reel of the packaging material is set in the feeding machine, and the web-shaped packaging material fed from the feeding machine is cut by a predetermined length, and then vertically It becomes a cylindrical carton that is sealed in the direction, open at both ends, and has a square cross section.
[0026]
Subsequently, the cylindrical carton is sent to a lid molding unit, and injection molding is performed in the lid molding unit, and a lid body 32 is molded at one end of the cylindrical carton. For this purpose, the lid forming unit includes a plurality of mandrels projecting radially and includes a mandrel unit that is rotated intermittently, and the cylindrical cartons are sequentially inserted into the mandrels of the mandrel unit. And the inner tool which comprises the inner side mold for shape | molding the cover body 32 is attached to the front-end | tip of each said mandrel, and in order to shape | mold the cover body 32 in the shaping | molding station set to the predetermined position of the mandrel. An outer tool that constitutes the outer mold is disposed.
[0027]
Accordingly, in the molding station, a cavity space is formed between the inner tool and the outer tool, and one end of the cylindrical carton is exposed to the cavity space. Then, the resin melted from the injection nozzle is injected, filled into the cavity space, and cooled to form a lid 32 that is integral with the cylindrical carton, with the lid having the other carton bottom open. A cylindrical carton is formed.
[0028]
Subsequently, the cylindrical carton with a lid is transported with the carton bottom on top and the lid 32 placed on the bottom, and while being transported, it is filled with liquid food. A packaging container is formed by forming and folding with a predetermined molding device and sealing a predetermined portion with a sealing device.
[0029]
By the way, the lid body 32 has a substantially rectangular shape corresponding to the shape of the packaging container body 11 and covers the collar portion 33 formed around the lid body 32 and the upper edge of the color portion 33. A wall portion 34 is provided. The top wall portion 34 is a predetermined front portion, in the present embodiment, a first top wall portion 35 formed in a substantially one-third portion, and a rear side from the first top wall portion 35. The second top wall portion 36 is provided.
[0030]
The first top wall 35 rises from the front edge k toward the rear while being concavely curved (so that the inclination angle increases toward the rear), and the central portion is low and approaches the side walls c and d. The second top wall portion 36 is extended at the same height from the front to the rear, and has a central portion. Has a second surface S2 formed in a “V” shape so as to be higher toward the side walls c and d.
[0031]
Then, from the vicinity of the central portion of the front edge k to the front end of the central portion of the second top wall portion 36, a pull ring 41 as an opening member is formed integrally with the main body of the top wall portion 34 when the lid body 32 is formed. The The pull ring 41 is formed in a substantially triangular shape in the vicinity of the front end of the central portion of the second top wall portion 36 and has a substantially triangular shape, and a straw insertion portion 44 for forming a straw insertion port 47, And a protrusion 45 formed so as to protrude forward from the straw insertion portion 44 and rise.
[0032]
The protruding portion 45 functions as a knob. When the protruding portion 45 is picked up by a finger and pulled up, the straw insertion portion 44 is peeled off from the main body of the top wall portion 34 as shown in FIG. In the present embodiment, a straw insertion port 47 having a triangular shape is formed on the top wall portion 34, and the packaging container is opened. For this purpose, a hinge portion 46 is formed in advance at the rear end of the straw insertion portion 44, and a closing portion 48 having a triangular shape is formed on the lower surface of the straw insertion portion 44 so as to correspond to the straw insertion port 47. A fracture portion is formed in an inverted “V” -shaped portion other than the hinge portion 46 at the periphery of the portion 48. The hinge portion 46 and the rupture portion are both formed by making the resin thinner than the other portions. The rupture portion is broken as the straw insertion portion 44 is peeled off, and the rupture portion is broken and the straw is broken. After the insertion port 47 is opened, the hinge portion 46 can swingably support the pull ring 41 and can open or close the straw insertion port 47.
[0033]
Further, the protrusion 45 is formed to rise in a right angle direction, and has an annular thin plate portion 55 having a predetermined thickness, a predetermined portion of the thin plate portion 55, and in this embodiment, the upper half of the outer periphery. And a rib portion 56 that reinforces the thin plate portion 55 and a tamper prevention portion 57 that has a function for recognizing whether or not the packaging container has already been opened (tamper evidence function).
[0034]
The thin plate portion 55 is formed in a predetermined size so that it can be picked from both sides, for example, with a thumb and an index finger, and as a first non-slip portion at a predetermined location, in the center in the present embodiment. A circular hole 61 having a predetermined size is formed. Therefore, since the thumb and the index finger fit through the hole 61, the finger can be prevented from slipping when the protrusion 45 is pulled up. In the present embodiment, the thin plate portion 55 has an annular shape and a hole 61 is formed at the center, but the thin plate portion does not have a hole formed at the center and has a circular shape. It can also be formed. Further, the thin plate portion can be thin at the center and thick at the peripheral portion.
[0035]
The thin plate portion 55 is formed so as to float from the first surface S1 so that the protrusion 45 can be easily picked, and there is a gap between the lower half of the outer peripheral edge of the thin plate portion 55 and the first surface S1. ) Is formed. Further, since the rib portion 56 is formed so as to protrude in the width direction over the upper half of the outer peripheral edge of the thin plate portion 55, it also has a non-slip function to prevent a finger from slipping when the protrusion 45 is pulled up, A second non-slip portion is configured.
[0036]
The tamper-preventing portion 57 includes a pin that extends downward from the lowermost portion of the thin plate portion 55 and is connected to the first top wall portion 35. The tamper-preventing portion 57 has a lower cross-sectional area than the other portions. A fractured portion having a reduced diameter is formed.
[0037]
Therefore, the thin plate portion 55 is picked with the thumb and the index finger, the protrusion 45 is pulled up to break the fracture portion at the lower end of the tamper prevention portion 57, and further, as described above, the fracture portion at the periphery of the closing portion 48 is broken. When the straw insertion part 44 is peeled off, the straw insertion port 47 can be opened as shown in FIG. Along with this, the packaging container can be opened.
[0038]
As shown in FIG. 4, a straw 63 can be inserted into the straw insertion port 47. In this case, as shown in FIG. 5, the straw 63 is inserted into the center of the straw insertion port 47 so that the outer peripheral surface contacts the inner peripheral edge of the straw insertion port 47 at three points p1 to p3. Then, three airways q1 to q3 having the same area are formed between the outer peripheral surface of the straw 63 and the inner peripheral edge of the straw insertion port 47.
[0039]
Pin-shaped stoppers 51 and 52 are formed at both ends near the bottom of the closing portion 48 so as to protrude obliquely downward and outward. Each stopper 51, 52 is formed so that the tip contacts the collar portion 53 formed to remain below the straw insertion portion 44 after the straw insertion portion 44 is peeled off, and after opening the packaging container, The pull ring 41 is held in the state shown in FIG. 3 so as not to be lowered by its own weight. The straw insertion port 47 can be closed by pushing down the pull ring 41 against the elasticity of the resin in the stoppers 51 and 52.
[0040]
In the present embodiment, after the straw insertion portion 44 is peeled off, the collar portion 53 is formed to remain below the straw insertion portion 44. However, the collar portion 53 is eliminated and the flat portion is removed. Can be. In that case, since the straw insertion port 47 is formed at the lowest portion of the second surface S2 formed in the “V” shape, when the straw 63 is inserted, the tip of the straw 63 is moved to the second surface S2. When it hits the periphery of the straw insertion port 47 in the surface S2, the tip of the straw 63 can be introduced into the straw insertion port 47 along the inclination of the second surface S2.
[0041]
Further, in the pull ring 41, the straw insertion part 44 is formed on the second top wall part 36, whereas the protrusion 45 is formed on the first top wall part 35. The top end of 45 can be placed in a relatively low position, but slightly protrudes above the top end of the second top wall 36. Therefore, when the packaging containers are stacked, the protrusions 45 come into contact with the bottom wall e of the packaging container stacked above. However, the pull ring 41 is formed of resin integrally with the lid body 32 and has elasticity. Accordingly, the protrusion 45 is deformed by a predetermined amount. As a result, the packaging containers can be stably stacked.
[0042]
In the present embodiment, when opening the packaging container, the thin plate portion 55 is picked up by a finger and pulled up to break the fracture portion at the lower end of the tamper prevention portion 57. By hitting the front end of the protrusion 45 and pushing the protrusion 45 rearward, the fracture portion at the lower end of the tamper-proof portion 57 can be broken. In that case, the straw insertion part 47 can be opened by picking the thin plate part 55 with the thumb and the index finger and then tearing off the straw insertion part 44 by breaking the fracture part at the periphery of the closing part 48. In this case, the thin plate portion 55 functions as a pressing protrusion. Moreover, since the rib part 56 is formed in the said projection part 45, it can prevent that the said projection part 45 deform | transforms when it pushes toward back.
[0043]
As described above, in the present embodiment, since the protrusion 45 is formed to rise, the straw insertion port 47 can be easily recognized and opened. Therefore, liquid food can be drunk smoothly using the straw 63.
[0044]
In addition, since the straw insertion port 47 can be opened by peeling off the straw insertion portion 44, it is not necessary to break the resin at the end of the straw 63 in order to open the straw insertion port 47. Therefore, since the straw insertion port 47 can be reliably opened in a triangular shape, the straw 63 can be properly inserted into the straw insertion port 47.
[0045]
And since the said protrusion part 45 stands | starts up with respect to the top wall part 34, the thin plate part 55 can be easily picked from the right and left of the protrusion part 45 with a finger | toe, or the protrusion part 45 can be easily backed by the belly of the thumb Can be pushed towards Therefore, the opening operation of the packaging container can be simplified.
[0046]
Further, since the first top wall portion 35 is formed by bending the first surface S1 into a concave shape, when the thin plate portion 55 is picked from the left and right sides of the protruding portion 45, a space for placing the finger is provided. Sufficiently can be secured, and the opening operation of the packaging container can be further simplified.
[0047]
Furthermore, since the rib part 56 and the hole 61 are formed in the predetermined part of the projection part 45, it is possible to prevent the finger from slipping when the projection part 45 is pulled up. Therefore, the opening operation of the packaging container can be further simplified.
[0048]
Since the straw 63 is supported at three points by the inner peripheral edge of the straw insertion port 47, the straw 63 can be stably held in the straw insertion port 47.
[0049]
Therefore, the airways q1 to q3 can be easily secured. As a result, when drinking liquid food, air can easily enter the packaging container via the airways q1 to q3, and the liquid food can be drunk more smoothly.
[0050]
In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.
[0051]
【The invention's effect】
As described above in detail, according to the present invention, the packaging container includes the packaging container body and the lid body that is integrally attached to the upper end of the packaging container body and includes the top wall portion.
[0052]
And the opening member is integrally formed in the predetermined location of this cover body.
The unsealing member projects toward the front wall of the packaging container body from a straw insertion portion for forming a straw insertion port having a triangular shape, and an inverted “V” -shaped portion of the straw insertion portion. And a protrusion formed by being raised through a tamper-proof portion in a direction perpendicular to the lid.
And the inner periphery of the said straw insertion port supports three points | pieces of the straw inserted in the straw insertion port.
[0053]
In this case, since the protruding portion is formed to rise, the straw insertion port can be easily recognized and opened. Therefore, liquid food can be drunk smoothly using a straw.
[0054]
Further, since the straw insertion port can be opened by peeling off the straw insertion part, it is not necessary to break the resin at the tip of the straw in order to open the straw insertion port. Therefore, since the straw insertion opening can be reliably opened, the straw can be properly inserted into the straw insertion opening.
[0055]
And since the said projection part stands | starts up and is formed with respect to a top wall part, a projection part can be easily picked with a finger | toe, or a projection part can be easily pushed back with the belly of a thumb. Therefore, the opening operation of the packaging container can be simplified.
[0061]
Further, since the inner peripheral edge of the straw insertion port supports the straw inserted into the straw insertion port at three points, the straw can be stably held in the straw insertion port.
[0062]
Therefore, an airway can be secured easily. As a result, when drinking liquid food, air can easily enter the packaging container via the airway, and the liquid food can be drunk more smoothly.
[Brief description of the drawings]
FIG. 1 is a perspective view of a packaging container according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a main part of a conventional packaging container.
FIG. 3 is a perspective view showing a main part of the opened packaging container according to the embodiment of the present invention.
FIG. 4 is a perspective view showing a state in which a straw is inserted into the straw insertion port in the embodiment of the present invention.
FIG. 5 is a diagram showing a relationship between a straw insertion slot and a straw in the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Packaging container main body 32 Cover body 34 Top wall part 41 Pull ring 44 Straw insertion part 45 Projection part 47 Straw insertion port 56 Rib part 61 Hole 63 Straw S1 1st surface

Claims (5)

(A) a packaging container body;
(B) having a lid attached integrally to the upper end of the packaging container body and having a top wall portion;
(C) an opening member is integrally formed at a predetermined portion of the lid,
(D) The opening member has a straw insertion part for forming a straw insertion opening having a triangular shape , and a reverse “V” -shaped part of the straw insertion part toward the front wall of the packaging container body. Protruding and provided with a protruding portion formed in a direction perpendicular to the lid body through a tamper-proof portion ,
(E) The packaging container characterized in that the inner peripheral edge of the straw insertion port supports three points of the straw inserted into the straw insertion port . The packaging container according to claim 1, wherein a broken portion for forming a straw insertion port is formed in the inverted “V” -shaped portion of the lower surface of the straw insertion portion. The packaging container according to claim 1, wherein the top wall portion is formed with a surface that curves and rises concavely from the front edge toward the rear . The packaging container according to claim 1 , wherein a non- slip portion is formed on a thin plate portion formed by being raised in a direction perpendicular to the protruding portion. The packaging container according to claim 1, wherein a rib portion is formed on an outer peripheral edge of the thin plate portion .

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