JP2002068310A - Beverage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage container which has a straw placed inside and can be easily unsealed by tearing force of a finger tip without using a tool such as scissors on a region to be unsealed wherein an upper part of the straw does not interfere with the unsealing and the upper part of the straw always protrudes out of an opening after unsealing. SOLUTION: The beverage container 1 has a body component 2 for receiving a beverage. The body component 2 comprises a front face part 5, a rear face part 6 and a pair of gussets 7 and 7 for connecting the front face 5 with the rear face 6 to constitute lateral parts. A notch 12 is formed on a neck 9 of the surface 5 and the rear face part 6, and perforations 12a are formed through a position corresponding to a position of the notch 12 except one layer of a laminate sheet constituting the front face part 5 and the rear face part 6. In addition, the gussets 7 and 7 do not exist over a predetermined amount of a region corresponding to the position of the notch 12, and rims of the front face part 5 and the rear face part 6 are directly welded with each other instead. The upper part of the straw 13 extends into the neck 9 and is located therein, wherein when an upper end of the neck 9 is pulled upward, it can be simply unsealed beyond the upper part of the straw 13 from the notch 12 along the perforations 12a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage container,
The present invention relates to a beverage container enclosing a beverage and a straw.

[0002]

2. Description of the Related Art Conventionally, flexible resin containers have been widely used as beverage containers. In these beverage containers, when the upper part of the container is cut to form a liquid injection opening and a straw is inserted into the liquid injection opening, the beverage in the beverage container can be sucked by the straw. However, in such a configuration, it is necessary to insert a straw, and it is necessary to prepare the straw separately from the container, which lacks convenience as a beverage container.

Therefore, a straw-enclosed beverage container 400 as shown in FIG. 13 has been proposed. The beverage container 400 has a main body constituting portion 402 for housing a beverage by heat sealing four sides of a square. The main body constituting portion 402 includes a front surface portion 405 and a back surface portion 406 having the same shape as the front surface portion 405.
And a bottom gusset portion 403 that connects the front surface portion 405 and the back surface portion 406 to form a bottom portion. The bottom gusset part 403 is formed by folding inward in a V-shaped cross section by a bent part 403a, and is fused to the front part 405 and the back part 406 by heat sealing. By changing the heat seal width, a narrow neck portion 409 where a liquid injection opening is to be formed by cutting is formed at one end of the uppermost portion of the main body constituting portion 402. Body configuration section 402
Inside, a straw 413 for sucking a beverage is arranged. One end of the straw 413 enters the neck 409, and the straw 413 is disposed so as to be positioned diagonally in the main body constituting portion 402.

[0004]

However, in such a beverage container 400, the beverage container 400 is provided at the neck 409.
It is extremely difficult to open the package by the tearing force of the consumer's finger, and if it is forcibly torn, not only may unexpected liquid leakage occur from the opening section, but also the opening may occur at an unexpected location. If scissors or the like are used, the neck portion 409 can be opened at a desired place, but it is troublesome to separately prepare scissors when carrying the beverage container 400 and opening it outdoors.

[0005] Further, using a tool such as scissors, the neck 409
When opening the straw 419, it is necessary to cut off the top surface 405 and the back surface 406 of the neck 409, avoiding the upper part of the straw 419 located in the neck 409. There is also a possibility that the upper part of the 413 may be cut with scissors, and it becomes difficult to pull out the straw 13 from the ear 409.

Therefore, the present invention relates to a beverage container having a straw disposed therein, which can be easily opened by a tearing force of a fingertip without using tools such as scissors at an opening portion, and the upper portion of the straw is opened. It is an object of the present invention to provide a beverage container which is not obstructive and in which the upper part of the straw always projects from the opening after opening.

[0007]

In order to achieve the above object, the present invention provides a beverage container having a main body for accommodating a beverage, and a suction straw enclosed in the main body with the beverage. The main body constituting portion is joined by heat fusion between a front surface portion, a back surface portion having the same shape as the front surface portion, a bottom portion, and opposing edges of the front surface portion, the back surface portion, and the bottom portion. Section having a bent section and having a cross section V before enclosing the beverage
And a pair of gusset portions having a character shape, the front surface portion and the back surface portion move in a direction away from each other by deformation of the gusset portion, so that the main body constituting portion can be filled with a beverage, and The upper portion of the front surface portion and the upper portion of the rear surface portion of the component portion have a neck portion which is narrower than the remaining portion of the front surface portion and the rear surface portion and extends vertically, and the gusset portion also has a side portion of the neck portion. The upper part of the straw extends into the neck, and the upper part of the straw is located at the edge fusion part of the neck as a guide of the tear position of the neck. A tear position indicating portion is provided, and the front surface portion and the back surface portion are directly fused without the gusset portion only in a predetermined region corresponding to the tear position indicating portion, and the front surface portion and the back surface portion are Made of a laminated sheet, wherein the surface portion and the back surface A perforation is formed through the entire width of the neck except for at least one layer of the laminate sheet at a position corresponding to at least one of the tear position indicating portions, and the perforation is formed from the tear indicating portion. To provide a beverage container whose neck is openable over the top of the straw.

Preferably, the tear position indicating portion is formed by a notch or a mark.

Further, in order to hold the straw in position with respect to the main body constituting portion, the region where the front surface portion and the back surface portion in the predetermined region corresponding to the tear position indicating portion are directly fused is formed by It preferably extends to near the outer peripheral surface of the upper part of the straw located in the neck.

[0010] Further, in order to hold the straw in position with respect to the main body constituting portion, an upper portion of the straw positioned in the neck portion and below the perforation is locally formed on the front surface or the back surface. It may be heat-sealed to the part.

The main body component has a shoulder gently inclined downward from the neck, and the neck is disposed on a longitudinal center line of the main body component, and the shoulder is connected to the center line. The straw is formed of a material having a lower specific gravity than the beverage, the inner peripheral length of the upper liquid injection opening is longer than the outer peripheral length of the straw, and the main body component is filled with the beverage. In this state, when the upper liquid injection opening becomes the uppermost end of the main body constituting portion due to tearing, the straw floats in the vertical direction due to the buoyancy of the beverage and may automatically project from the upper liquid injection opening. Good.

Further, before the beverage is filled, the bent portions of the pair of gusset portions are symmetrically located parallel to each other with respect to a longitudinal center line of the main body constituting portion, and the straw is provided between the bent portions. Is preferably held in position.

Preferably, the straw is provided with a projection which can be engaged with the inner peripheral surface of the neck when the straw floats in the vertical direction.

It is preferable that the front surface and the rear surface are made of a transparent or translucent resin material.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A beverage container according to a first embodiment of the present invention and a manufacturing process thereof will be described with reference to FIGS. FIG. 1 shows a beverage container 1 filled with a beverage. The beverage container 1 has a main body component 2 for containing a beverage. The main body component 2 includes a bottom 3, a surface 5, and a surface 5.
, And a pair of gussets 7, 7 which form a side part by connecting the front part 5 and the back part 6. The gusset parts 7, 7 are formed by folding inward in a V-shaped cross section by the bent parts 7a, 7a (FIG. 2),
It is fused to the front surface portion 5 and the back surface portion 6 by heat sealing (thermal fusion) or the like. That is, the left and right edges of the front surface portion 5 and one edge of each of the gusset portions 7 and 7, and the left and right edges of the back surface portion 6 and the other edge of each of the gusset portions 7 and 7 are heat-sealed. To form a heat-sealed portion (heat-sealed portion) 8 having a width of 3 mm to 5 mm. In the state before filling the beverage, as shown in FIG.
Are positioned symmetrically parallel to each other with respect to the longitudinal center line X of the main body constituting portion 2.

The upper part of the front part 5 and the back part 6 of the main body component 2
Has a narrower width than the remaining portions of the front surface portion 5 and the rear surface portion 6, and forms a neck portion 9 extending in the vertical direction, and a shoulder portion 10 gently inclined downward from the neck portion 9 as if it were. It is shaped like a bottle neck. The neck 9 is disposed on the longitudinal center line X (FIG. 2) of the main body component 2, and the shoulder 1
0 and 10 are symmetrical with respect to the center line X.

A gusset that forms a side portion by connecting the remaining portions except the neck portion 9 and the shoulder portion 10 of the back surface portion 6 except for the neck portion 9 and the shoulder portion 10 of the front surface portion 5 of the main body constituting portion 2 and the remaining portion. The parts 7, 7 constitute the main filling part 11 for holding the beverage, and its cross section B is substantially square. Then, in order to form the bottom 3 shown in FIG. 1, as shown in FIG. It is constituted by edges 8b, 8b and a center edge 8c.

A straw 13 for sucking a beverage is arranged in the main body component 2. The straw 13 is made of a material having a specific gravity lower than the specific gravity of the beverage filled in the main body constituting section 2, for example, a resin. The straw 13 is provided with a projection 13A that projects perpendicularly to the longitudinal direction from the outer peripheral surface of the straw 13 at an intermediate position in the longitudinal direction. The length L of the straw 13 is shorter than the height h of the main body component 2 after filling the beverage. Further, as shown in FIG. 3, the inner peripheral length of the liquid injection opening 4 is formed longer than the outer peripheral length of the straw 13.

The front part 5 and the back part 6 are made of a laminated sheet of a flexible plastic material (resin film). As a specific example, a polyethylene terephthalate film (PET) having a thickness of 12 microns and a thickness of 1
A three-layer laminate film of a 5 micron biaxially oriented nylon film and a 80 micron thick linear low density polyethylene film is used.

The gussets 7 are preferably made of a softer material than the front surface 5 and the back surface 6. As a specific material, a two-layer laminated film of a biaxially stretched nylon film having a thickness of 15 μm and a linear low-density polyethylene film having a thickness of 120 μm is used.

Here, the PET film has excellent heat resistance,
It is a material that does not lose its shape and is used to ensure dimensional stability in the bag making process. This material also has an advantage that processing at the time of molding by heat sealing is easy. The biaxially stretched nylon film has excellent toughness and is used to obtain a desired strength that does not make the beverage container 1 bulky and that can withstand transportation and handling. The linear low-density polyethylene film has thermal adhesiveness and is used for forming the beverage container 1 by heat sealing. This material also has toughness, although not as much as a biaxially stretched nylon film. In this specific example, since the front surface portion 5 and the back surface portion 6 are made of a transparent material, the position of the straw 13 disposed inside the main body constituting portion 2 can be confirmed from the outside.

A notch 12 is formed in the heat seal portion 8 of the neck 9 as a guide for the tear position of the neck 9. The front surface portion 5 and the back surface portion 6 are made of a laminated sheet as described above, but at a position corresponding to the position of the notch 12 of the front surface portion 5 and the back surface portion 6, a direction crossing the longitudinal center line X of the main body constituting portion 2. A perforation 12a is formed through the entire width of the neck portion 9 except for at least one layer of the laminate sheet constituting the front surface portion 5 and the back surface portion 6. However, since the perforations 12a do not penetrate at least one layer of the laminate sheet constituting the front surface portion 5 and the back surface portion 6, the front surface portion 5 and the back surface portion 6 themselves do not penetrate. The gussets 7, 7 also constitute the side of the neck 9, but the gussets 7, 7 do not exist in a predetermined area corresponding to the position of the notch 12, that is, in the vicinity of the position where the perforations 12a are formed. Instead, the edges of the front surface portion 5 and the back surface portion 6 are directly fused to each other. The upper part of the straw 13 is the neck 9
And extends to a position higher than the position where the notch 12 and the perforation 12a are formed. When the upper end of the neck portion 9 is pulled upward with the notch 12 and the perforation 12a gripping the main body constituting portion 2, the neck 9 is moved from the notch 12 over the upper portion of the straw 13 along the perforation 12a. The upper heat seal portion 8a can be removed, and the seal can be easily opened. Heat seal part 8
When “a” is removed and the beverage container 1 is opened, as shown in FIG. 3, a liquid injection opening 4 for pouring out a beverage as a content is formed.

Next, the beverage container 1 according to the first embodiment will be described.
Will be described.

First, perforations 12a are formed in the laminate sheet constituting the front surface portion 5 and the back surface portion 6. As described above, the front part 5 and the back part 6 are made of a polyethylene terephthalate film (PET) having a thickness of 12 μm, a biaxially stretched nylon film having a thickness of 15 μm, and a thickness of 8 μm.
It is composed of a three-layer laminate film of a 0 micron linear low-density polyethylene film. FIG.
2 shows an enlarged cross-sectional view of the laminate sheet constituting the surface portion 5. Hereinafter, the processing of the laminate sheet forming the front surface portion 5 will be described, but the same applies to the processing of the laminate sheet forming the rear surface portion 6.

As a first specific example of a method for forming perforations 12a, first, as shown in FIG. 4A, a polyethylene terephthalate film layer 5A, a biaxially stretched nylon film layer 5B, a linear low-density polyethylene Film layer 5
A perforation is formed through all of C. Then, FIG.
As shown in (b), a heat sealing bar 20 or the like is brought into contact with the surface of the linear low-density polyethylene film layer 5C and is heated and melted. Work to close. In this way, perforations 12a penetrating the polyethylene terephthalate film layer 5A and the biaxially stretched nylon film layer 5B but not penetrating the linear low density polyethylene film layer 5C are formed. According to such a forming method, both the formation of perforations and the closing of perforations with a heat seal bar can be performed in the bag making process.

As a second specific example of the method for forming the perforations 12a, as shown in FIG. 4C, first, a polyethylene terephthalate film layer 5A having a thickness of 12 microns is formed.
And a biaxially stretched nylon film layer 5 having a thickness of 15 microns.
B and a linear low-density polyethylene film layer 5C having a thickness of 60 microns are laminated to form a three-layer laminated film. Then, a perforation penetrating the laminate film is formed. Then, a 20 μm thick linear low density polyethylene film layer 5C having a thickness of 60 μm
Micron linear low density polyethylene film layer 5C '
Is laminated. Thus, a perforation 12a penetrating only the polyethylene terephthalate film layer 5A, the biaxially stretched nylon film layer 5B, and the linear low-density polyethylene film layer 5C can be provided. According to such a forming method, the linear low-density polyethylene film layer 5C 'is laminated on the laminated sheet on which the perforations are formed, and is wound into a roll, and then a bag making process is performed.

Since the tear strength of the laminate sheet is reduced by forming the perforations 12a in this manner, the consumer can climb over the upper part of the straw 13 by tearing with his fingertip and heat the upper part of the neck part 9 with heat. The seal portion 8a is removed, and the beverage container 1 can be opened.
On the other hand, the perforations 12a are formed by the front surface portion 5 and the back surface portion 6.
Is not penetrated and is closed, so that liquid leakage from inside the beverage container 1 can be prevented.

Next, as shown in FIG.
Laminate sheets constituting the gusset portions 7 and 7 and the back surface portion 6 are laminated. Perforations 1 on front 5 and back 6
2a are formed, and the laminated sheets constituting the gussets 7, 7 have cutouts 7 at the bent portions 7a, 7a side.
b and 7b are formed. Surface part 5, gusset part 7,
7. When laminating the laminate sheet constituting the back surface portion 6, the perforations 12a of the front surface portion 5, the notches 7b, 7b of the gusset portions 7, 7 and the perforations 12a of the back surface portion 6 overlap.

Then, as shown in FIG. 6, the beverage container 1 is laminated on the laminate of the front surface portion 5, the gusset portions 7, 7 and the back surface portion 6.
The heat seal 8 having the shape of the main body component 2 is applied. At this time, the front surface portion 5 and the gusset portions 7 and 7 and the back surface portion 6 and the gusset portions 7 and 7 are fused, but a portion 8a between the bent portions 7a and 7a where no gusset portion 7 exists and a cutout portion 7b , 7b
The surface portion 5 and the back surface portion 6 are directly fused to each other. Further, as shown in FIG. 7, the laminate sheet is cut into the shape of the main body constituting portion 2 of the liquid container 1. FIG. 8 is a cross-sectional view of the surface portion 5, the gusset portions 7, 7, and the back surface portion 6 which are laminated and fused, and in a portion where the gusset portions 7, 7 exist, as shown in FIG. The front surface portion 5 and the gusset portions 7, 7 and the back surface portion 6 and the gusset portions 7, 7 are fused, and at the portions corresponding to the cutout portions 7b, 7b, as shown in FIG. The back part 6 is directly fused.

Finally, the beverage container 1 is manufactured by inserting the straw 13 into the main body constituting portion 2 shown in FIG. In the state (FIG. 2) before beverage filling of the beverage container 1 manufactured as described above, the straw 13 is held at a position between the bent portions 7a. This allows
The straw 13 is held at a position where the gusset portion 7 does not exist and the thickness of the main body constituting portion 2 is small, and when a large number of main body constituting portions 2 are transported in a stacked manner, it is convenient without being bulky.

When the beverage is filled in the beverage container 1, the beverage container 1 has a stable three-dimensional structure by opening the V-shape of the gussets 7, 7 as shown in FIG. The bottom 3 of the beverage container 1 at the time of filling the beverage has a substantially square shape, and can be stably self-standing with the bottom 3 down and the neck 9 up.

Next, while holding the main body constituting portion with one hand, the upper portion of the neck portion 9 is grasped with the fingers of the other hand and pulled upward, and tearing from the notch 12 occurs. At this time, since the gusset portion 7 does not exist in the portion where the tear occurs, and only the front surface portion 5 and the back surface portion 6 exist, the tearing is required as compared with the case where the gusset 7 exists even in the portion where the tear occurs. Less power is needed. In addition, since the perforations 12a are formed in the front surface portion 5 and the rear surface portion 6 on the extension of the notch 12, the force required for tearing is further reduced,
By pulling the upper part of the neck 9 upward, tearing occurs easily, and the neck 9 can be opened so as to get over the upper part of the straw 13.

At the moment when the straw is opened, the straw 13 is made of a material having a specific gravity lower than the specific gravity of the beverage to be filled in the main body constituting portion 2. Since it is longer than the outer peripheral length, the end of the straw 13 automatically rises and projects from the liquid injection opening 2 without any hindrance due to buoyancy. The length L of the straw 13 is equal to the height h of the main body component 2 after filling the beverage.
Since the length of the straw is shorter than that, the straw 13 can be directed in the vertical direction in the main body constituting portion 2 after filling the beverage. Therefore,
The straw 13 can protrude smoothly from the liquid injection opening 4. Further, even if one end of the straw 13 comes to a position shifted from the neck 9 for some reason, the straw 13 does not hinder the protrusion from the upper liquid injection opening 4. That is, since there is the shoulder portion 10 that is gently inclined downward from the neck portion 9, the straw 13 that has floated in the vertical direction due to the buoyancy of the beverage goes to the neck portion 9 that is located higher along the shoulder portion 10 and finally This is because the straw 13 protrudes from the upper liquid injection opening 4. The neck 9 is disposed on the center line X in the longitudinal direction of the main body component 2, and the shoulders 10 and 10 are symmetrical with respect to the center line X. It can protrude from the opening 4.

The straw 13 may protrude from the liquid injection opening 2 vigorously due to buoyancy. Even in such a case, since the projection 13A projecting in the direction perpendicular to the longitudinal direction of the straw 13 is formed, the straw 1
At the point when 3 protrudes from liquid injection opening 4, protrusion 13 </ b> A engages with the inner peripheral surface of neck 9. Thereby, the straw is prevented from excessively protruding from the upper liquid injection opening 4, and the whole straw 13 can be prevented from being detached from the main body component 2 to the outside.

Next, a beverage container 100 according to a second embodiment of the present invention will be described with reference to FIG. Portions having the same configuration as in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In beverage container 100 according to the present embodiment, straw 113 is not provided with a protrusion (13A in FIG. 2). In the vicinity of the notch 12 and the perforation 12, the heat seal 8 extends to the vicinity of the outer peripheral surface of the upper part of the straw 113,
3 is formed. As a result, the heat-sealing portion 8a is removed, the liquid injection opening 4 formed when the beverage container 1 is opened is in close contact with the outer periphery of the straw 113, and the straw 113 is held by the holding portion 8d. Therefore, at the time of opening and after opening, the straw 113 does not sink into the main body constituting portion 2 of the liquid container 100, but extends from the position of the perforation 12a and projects from the liquid injection opening 4 by an amount corresponding to the position. Can be maintained.

Next, a beverage container 200 according to a third embodiment of the present invention will be described with reference to FIG. Portions having the same configuration as in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In beverage container 200 according to the present embodiment, straw 213 has no projection. The upper portion of the straw 213 and the position below the perforation 12a are joined to the surface portion 5 by a point seal portion 8e formed by heat fusion. Therefore, at the time of opening and after opening, the straw 2
13 can be maintained in a state of protruding from the liquid injection opening 4 by an amount extending beyond the position of the perforation 12a without sinking into the main body constituting portion 2 of the liquid container 200. In this embodiment, the point seal portion 8e is provided on the front surface portion 5 side, but may be provided on the back surface portion 6 side, or provided on both the front surface portion 5 side and the back surface portion 6 side. Is also good.

Next, a beverage container 300 according to a fourth embodiment of the present invention will be described with reference to FIG. Portions having the same configuration as in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In beverage container 300 according to the present embodiment, straw 313 is not provided with a protruding portion, but is provided with bellows portion 313A.
The bellows portion 313A is formed at a position above the straw 313 and below the perforation 12a.
At the position 13A, the straw 313 is joined to the surface 5 by a point seal portion 8f formed by heat sealing. Therefore, at the time of opening and after opening, the straw 313 does not sink into the main body constituting portion 2 of the liquid container 300, but extends from the position of the perforation 12a and projects from the liquid injection opening 4 by an amount corresponding to the position of the straw 313. Can be maintained. Since the bellows portion 313A is made of a larger amount of material than the other straws 313, heat sealing is performed at the bellows portion 313A. Can be avoided. Further, the deformation of the bellows portion 313A facilitates the suction of the beverage. In this embodiment, the point seal portion 8e is provided on the front surface portion 5 side, but may be provided on the back surface portion 6 side, or provided on both the front surface portion 5 side and the back surface portion 6 side. Is also good.

The beverage container according to the present invention is not limited to the embodiment described above, and various modifications and improvements are possible within the scope described in the claims. For example, in the above-described embodiment, the notch 12 is formed in the heat seal portion 8 of the neck 9 as a measure of the opening position, but instead of the notch,
Printing may be performed on the heat seal portion. Further, in order to facilitate the tearing, perforations are formed at predetermined positions of the predetermined layer on both the front surface portion and the rear surface portion. However, as long as tearing can be easily realized, the perforations are only the front surface portion or the rear surface portion. It may be formed only.

As shown in FIG. 12, a notch is partially formed in the gusset portion 7 in the heat seal portion 8 of the shoulder portion 10, and the front surface portion 5 and the back surface portion 6 are directly heated at the edge of the shoulder portion 10. It may be made to fuse.

[0040]

According to the first aspect of the present invention, a tear position indicating portion is provided at the heat-sealed portion at the edge of the neck as a guide of the tear position of the neck portion, and a predetermined amount corresponding to the tear position indicating portion is provided. Only in the region, the front surface portion and the back surface portion are directly fused without the presence of the set portion, so that the strength is weak in a predetermined amount region corresponding to the tear position indicating portion, and tearing for opening is easy. .

Further, the front and back portions are made of a laminate sheet, and at least at the position corresponding to the tear position indicating portion of at least one of the front and back portions, at least over the entire width of the neck portion of the laminate sheet. Since the perforations are formed penetrating except for one layer, the tear strength of the laminate sheet is reduced at the perforations, so that the consumer can tear along the perforations from the tear indicator by tearing with the fingertip. The neck can be easily opened so as to get over the upper part of the straw. On the other hand, since the perforations do not penetrate the front surface portion and the back surface portion and are closed, liquid leakage from inside the beverage container can be prevented.

According to the beverage container of the second aspect, since the notch or mark indicating the upper liquid injection opening position is formed, it is convenient as a guide of the opening position.

According to the third aspect of the present invention, the region where the front surface portion and the back surface portion are directly fused to each other in the predetermined region corresponding to the tear position indicating portion is located near the upper outer peripheral surface of the straw located in the neck portion. The straw can be held so that the straw does not sink into the main body constituting part of the liquid container at the time of opening or after opening, and the straw is extended beyond the position of the tear position indicating part. Only the state protruding from the liquid injection opening can be maintained.

According to the beverage container of the fourth aspect, the upper part of the straw located in the neck and the lower part of the perforation is locally heat-sealed to the front surface or the back surface. When opening or after opening, the straw does not sink into the main body component of the liquid container, but extends from the perforation position and protrudes from the liquid injection opening by the amount that was positioned. Can be maintained.

According to the fifth aspect of the present invention, since the inner peripheral length of the liquid injection opening is formed longer than the outer peripheral length of the straw, the upper liquid injection opening is separated from the uppermost end of the main body constituting portion by tearing. When this happens, the buoyancy of the beverage causes the upper end of the straw to pass upward through the liquid injection opening without any hindrance and to automatically protrude from the upper liquid injection opening. Therefore, the beverage can be easily sucked without the need to insert a straw from the outside and the need to pull out the straw from inside the container. In addition, since the length of the straw is shorter than the height of the main body constituting portion after filling the beverage, the straw can be directed vertically in the beverage container after filling the beverage.
Therefore, the straw can protrude smoothly from the liquid injection opening. Furthermore, since there is a shoulder portion that is gently inclined downward from the neck portion, even if one end of the straw is detached from the straw holding portion, the straw that floated in the vertical direction due to the buoyancy of the beverage is smoothly moved by the shoulder portion. To the neck located above, and finally the straw can protrude from the upper filling opening. Further, the neck is disposed on the longitudinal center line of the main body component,
Since the shoulder has a symmetrical shape with respect to the center line X, the straw can protrude from the liquid injection opening at any position.

According to the beverage container of the sixth aspect, the bent portions of the gusset portion are located symmetrically parallel to each other with respect to the longitudinal center line of the main body constituting portion.
A straw is held between the bent parts. Therefore, the straw is positioned and held at the central part in the longitudinal direction of the container in a portion where the thickness of the main body configuration is thin and there is no gusset portion, and a large number of superimposed beverage containers are not bulky during transportation or the like, which is convenient. .

According to the beverage container of the present invention, since the projection which can be engaged with the inner peripheral surface of the neck when the straw floats in the vertical direction is provided, the straw is excessively moved from the upper liquid injection opening. Projection is prevented, and the entire straw can be prevented from jumping out of the main body component.

According to the beverage container of the present invention, since the front and rear portions are made of a transparent or translucent material, the position of the straw can be confirmed from the outside.
Therefore, before filling the beverage, it is possible to confirm whether the straw has deviated from the predetermined position, and it is easy for the consumer to grasp the amount of the beverage and the position of the straw.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a beverage container filled with a beverage according to a first embodiment of the present invention.

FIG. 2 is a front view showing the beverage container according to the first embodiment of the present invention before filling the beverage;

FIG. 3 is a partially enlarged sectional view showing a state in which a straw protrudes from a neck portion and a liquid injection opening of the beverage container according to the first embodiment of the present invention.

FIG. 4 is a partially enlarged sectional view showing a perforation formed on the surface of the beverage container according to the first embodiment of the present invention.
(A) shows a state in which perforations penetrating the laminate sheet are formed in the first specific example of the method for forming perforations, and (b) shows a state where perforations are formed in the first specific example of the method for forming perforations. FIG. 9C shows a state in which the processing is performed to close the processing on one side of the laminate film. FIG. 10C shows a second specific example of a method for forming perforations, in which a linear low-density polyethylene film 5C ′ having a thickness of 20 μm is laminated. Shows a shape.

FIG. 5 is a diagram showing a state in which laminate sheets constituting a front surface portion, a gusset portion, and a back surface portion are laminated in a process of manufacturing the beverage container according to the first embodiment of the present invention.

FIG. 6 is a diagram showing a state in which heat sealing is performed on a laminate of a front surface portion, a gusset portion, and a back surface portion in a process of manufacturing the beverage container according to the first embodiment of the present invention. .

FIG. 7 is a diagram showing a state in which a heat-sealed front part, a gusset part, and a back part are cut into a shape of a beverage container in a process of manufacturing the beverage container according to the first embodiment of the present invention.

8A is a cross-sectional view taken along a line VIIIa-VIIIa in FIG. 7, and FIG. 8B is a cross-sectional view taken along a line VIIIb-VIIIb in FIG.

FIG. 9 is a front view showing a beverage container according to a second embodiment of the present invention before filling the beverage.

FIG. 10 is a front view showing a beverage container according to a third embodiment of the present invention before filling the beverage.

FIG. 11 is a front view showing a beverage container according to a fourth embodiment of the present invention before filling the beverage.

FIG. 12 is a side view showing a modified example of the beverage container according to the embodiment of the present invention after filling the beverage.

FIG. 13 is a side view showing a conventional beverage container before filling the beverage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 100, 200, 300 Beverage container 2 Main body constituent part 3 Bottom part 4 Injection opening 5 Surface part 6 Back part 7 Gusset part 7a Bend part 8d Holding part 8f, 8e Point seal part 9 Neck part (main body constituent part) 10 Shoulder Part (main body constituent part) 12 notch 12a perforation 13, 113, 213, 313 straw

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tohru Ichikawa 11-5 Nibancho, Chiyoda-ku, Tokyo Inside Yoko Hosokawa Corporation (72) Inventor Susumu Niwa 11-5 Nibancho, Chiyoda-ku, Tokyo 5 Hiroyuki Hosokawa Corporation (72) Inventor Shuzo Adachi 3-12-2 Nihombashi, Chuo-ku, Tokyo Asahi Building 7F Mitsubishi Corporation Packaging F-term (reference) 3E064 AA13 BA21 BB03 FA04 HF09 HG03 HN05 HP01 HP02 HT20 3E067 AA03 AB26 BA13A BB14A BB25A BC03A CA24 EA06 EB03 EB07 EE24 FA01 FC01

Claims (8)

[Claims] 1. A beverage container having a main body component for accommodating a beverage and a suction straw enclosed in the main body component together with the beverage, wherein the main body component has a surface portion and the same shape as the surface portion. The back surface, the bottom, and the front surface, the back surface and the bottom are joined by heat fusion between opposing edges of the bottom to form side portions and have a bent portion, and before the beverage is sealed. A pair of gusset portions having a V-shaped cross section, and the front surface portion and the back surface portion move in a direction away from each other by deformation of the gusset portion, so that the beverage can be filled in the main body component portion, An upper portion of the front surface portion and an upper portion of the back surface portion of the main body constituting portion include a neck portion which is narrower than the remaining portion of the front surface portion and the back surface portion and extends in a vertical direction, and the gusset portion is located on a side of the neck portion. A neck portion which forms an upper liquid injection opening which is opened by tearing; The upper part of the trolley extends into the neck, and a tear position indicator is provided on the edge fusion part of the neck as a guide of the tear position of the neck, and a predetermined position corresponding to the tear position indicator is provided. The front portion and the back portion are directly fused without the gusset portion being present only in the region, and the front portion and the back portion are made of a laminate sheet, and at least one of the front portion and the back portion is formed. At a position corresponding to one of the tear position indicating portions, a perforation is formed through the entire width of the neck except for at least one layer of the laminate sheet, and the straw extends along the perforation from the tear indicating portion. A drink container characterized in that the neck portion can be opened so as to get over the upper part of the beverage container. 2. The beverage container according to claim 1, wherein the tear position indicating portion is formed by a notch or a mark. 3. The region where the front surface portion and the back surface portion in the predetermined region corresponding to the tear position indicating portion are directly fused to hold the straw in position with respect to the main body constituting portion, The beverage container according to claim 1, wherein the beverage container extends near the outer peripheral surface of an upper portion of the straw located in the neck. 4. An upper portion of the straw positioned in the neck portion and below the perforation for locally holding the straw with respect to the main body constituting portion, wherein the upper surface portion or the lower surface portion is locally provided with the front surface portion or the back surface. The beverage container according to claim 1, wherein the beverage container is heat-sealed to the portion. 5. The body component comprises a shoulder gently sloped downward from the neck, the neck being located on a longitudinal centerline of the body component, and the shoulder being attached to the centerline. The straw is formed of a material having a lower specific gravity than the beverage, the inner peripheral length of the upper liquid injection opening is longer than the outer peripheral length of the straw, and the main body component is filled with the beverage. In the state, when the upper liquid injection opening becomes the uppermost end of the main body constituting portion due to tearing, the straw floats in the vertical direction due to the buoyancy of the beverage and automatically projects from the upper liquid injection opening. The beverage container according to claim 1 or 2, wherein 6. In a state before filling the beverage, the bent portions of the pair of gusset portions are positioned symmetrically parallel to each other with respect to a longitudinal center line of the main body constituting portion, and the straw is provided between the bent portions. 6. The beverage container according to claim 5, wherein the position is maintained. 7. The beverage container according to claim 5, wherein the straw is provided with a projection that can engage with the inner peripheral surface of the neck when the straw floats in the vertical direction. 8. The beverage container according to claim 1, wherein the front surface portion and the rear surface portion are made of a transparent or translucent resin material.