JP2002068311A - 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: A body component 2 of the beverage container 1 comprises a front face part 5, a rear face part 6 and a pair of gussets 7 and 7 for connecting the front face part 5 with the rear face part 6 to constitute lateral parts. The gussets 7 and 7 do not exist entirely on a neck 9 of the front face part 5 and the rear face part 6, and rims of the front face 5 and the rear face part 6 are directly welded with each other instead. In addition, a notch 12 is formed on the neck 9, 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. 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.

[0003] Therefore, a straw-enclosed beverage container 400 as shown in FIG. 8 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, a back surface portion 406 having the same shape as the front surface portion 405,
It is constituted by a bottom gusset portion 403 which 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. A straw 413 for sucking a beverage is disposed inside the main body component 402.
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 front surface 405 and the back surface 406 of the neck 409 while avoiding the upper part of the straw 419 located in the neck 409. In some cases, the straw 413 in the neck 409 may be cut. There is a possibility that the upper part of the straw may be cut with scissors, and it becomes difficult to pull out the straw 13 from the ear part 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 part of the front part and the upper part of the back part of the component part are narrower than the remaining part of the front part and the back part,
Opposing edges of the upper portion of the narrow surface portion and the upper portion of the narrow rear surface portion are heat-fused with each other to have a vertically extending neck portion, and a distance between the edge portions of the neck portion is determined by bending the gusset portion. The upper part of the neck forms an upper liquid injection opening that is opened by tearing, and the upper part of the straw extends into the neck and is located at the tearing position of the neck. As a guide, a tear position indicating portion is provided at the fusional portion at the neck edge portion, and the front surface portion and the rear surface portion are made of a laminate sheet, and the tear position indicating portion between the front surface portion and the rear surface portion is provided. And a perforation is formed through the entire width of the neck except for at least one layer of the laminate sheet, to hold the position of the straw relative to the main body component. Means for holding the neck and an upper portion of a straw in the neck. Provided between, 該首 unit so as to overcome the upper portion of the straw at the perforation from tearing instruction unit is providing a beverage container can be opened.

Here, the tear position indicating portion is preferably formed by a notch or a printing mark.

The position holding means may be arranged such that, of the heat-sealed portions at the edge of the neck portion, only the heat-sealed portion corresponding to the tearing position indicating portion extends to the vicinity of the upper outer peripheral surface of the straw. Preferably, it is extended and formed by an extended heat-sealing portion in which the inner diameter of the neck is locally reduced.

[0010] Alternatively, the position holding means is such that the upper portion of the straw positioned in the neck portion and below the perforation and the front surface portion or the rear surface portion are locally heat-sealed. It may be constituted by a point seal portion.

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

[0012]

DETAILED 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. FIG. 2 shows the shape of the beverage container 1 before filling the beverage. The neck 9 and the upper edge of the beverage container 1 are heat-sealed in advance, and the bottom 3
Front and back surfaces 6 and gussets 7 of the parts constituting
Is in an unfused state. The beverage is filled from the bottom opening of the beverage container, and after filling, the unwelded portions of 8b and 8c are heat-sealed. In the state before filling the beverage, as shown in FIG. 2, the bent parts 7 a of the gusset parts 7 are positioned symmetrically parallel to each other with respect to the longitudinal center line X of the main body constituting part 2.

The upper part of the front part 5 and the rear part 6 of the main body part 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 connects the remaining portions except the neck 9 and the shoulder portion 10 of the front surface portion 5 of the main body constituting portion 2 except for the neck portion 9 and the shoulder portion 10 and forms a side portion by connecting the two remaining portions. 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 drinking straw 13 is disposed in the main body 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 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. As shown in FIG. 2, the straw 13 holds the bent portion 7 in a state before liquid filling.
The position is held between a and 7a. Thereby, the straw 13 is held at a position where the gusset part 7 does not exist and the thickness of the main body constituting part 2 is thin, and when a large number of the main body constituting parts 2 are transported in a pile, it is convenient without being bulky.

The front surface portion 5 and the back surface portion 6 are formed of a laminate 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 an indication of a 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. Perforation 12a on front surface 5 and perforation 1 on back surface 6
2a overlaps.

The distance between the edges of the neck portion 9 (the distance between the outer edges of the heat seal portion) is determined by the bent portions 7a of the gusset portions 7, 7,
It is configured to be equal to or smaller than the distance between 7a. For this reason, in the neck part 9, the side part by the gusset parts 7, 7 does not exist, and the edges of the front surface part 5 and the back surface part 6 are directly fused to each other. In the present embodiment, the upper portion of the neck 9 has a cap shape, and the distance between the edges of the neck 9 is formed larger than the distance between the bent portions 7a of the gusset portions 7, 7. However, the distance between the edges of the neck portion 9 may be equal to or smaller than the distance between the bent portions 7a, 7a of the gusset portions 7, 7 at the portion where the notch 12 and the perforation 12 are formed. No problem. Notch 1
In the vicinity of the second and perforations 12, the heat seal 8 extends to near the outer peripheral surface of the upper part of the straw 113, and forms a holding portion 8d for holding the straw 113. Straw 1
The upper part of 3 extends into the neck 9 and extends above the position where the notch 12 and the perforation 12a are formed.

Next, a method of forming the perforations 12a will be described. As described above, the front surface portion 5 and the back surface portion 6 have the thickness 1
2 micron polyethylene terephthalate film (P
ET), a 15-micron-thick biaxially stretched nylon film, and a 80-micron-thick linear low-density polyethylene film composed of three laminated films. 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 the method of 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 the perforations and the closing of the perforations by the heat seal bar 20 can be performed in the bag making process.

As a second specific example of a method for forming 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 due to the formation of the perforations 12a in this manner, the user can climb over the upper part of the straw 13 by tearing with a 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.

When the beverage is filled in the beverage container 1, the filling amount of the beverage can be increased by opening the V-shape of the gussets 7, 7 as shown in FIG. It becomes a three-dimensional structure. 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.

While holding the main body component with one hand,
When the upper part of the neck 9 is grasped with the finger of the other hand and pulled upward,
Tearing from the notch 12 occurs, and the neck above the perforation 12a can be removed from the notch 12 along the perforation 12a and over the upper part of the straw 13. 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, and by pulling the upper portion of the neck portion 9 upward, Tearing easily occurs, and the neck 9 can be opened so as to go over the upper part of the straw 13. By opening,
As shown in FIG. 3, a liquid injection opening 4 for pouring out a beverage as a content is formed.

As described above, 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 portion of the straw 113, and forms a holding portion 8d for holding the straw 113. As a result, the heat-sealing portion 8a is removed, and 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 as shown in FIG. Is held. 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 1, but extends from the position of the perforation 12 a and projects from the liquid injection opening 4 by an amount corresponding to the position. Can be maintained.

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. An upper portion of the straw 113 and a position below the perforation 12a are formed by a point seal portion 8e formed by heat fusion, and the surface portion 5 is formed.
Is joined to. 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. 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 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, bellows 21
3A is provided. The bellows part 213A is the straw 21
3 and at a position below the perforations 12a, and at the position of the bellows portion 213A, the straw 2
13 is joined to the surface portion 5 by the point seal portion 8f. Therefore, at the time of opening and after opening, the straw 213 is opened.
Can be maintained in a state protruding from the liquid injection opening 4 by an amount extending from the position of the perforation 12a without sinking into the main body constituting portion 2 of the liquid container 200. Since the bellows portion 213A contains more material than the other straws 213, heat sealing is performed at the position of the bellows portion 213A, so that the straw 213 is crushed by heat or pressure due to the formation of the point seal portion 8f. Can be avoided. Further, the deformability of the bellows portion 213A 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 above-described embodiment, and various modifications and improvements can be made 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.

The holding portion 8d and the point seal portion 8e
Or both of 8f may be provided.

Further, as shown in FIG. 7, 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 formed at the edge of the shoulder portion 10. It may be made to be heat-sealed.

[0033]

According to the beverage container of the present invention, a tear position indicating portion is provided at the heat-sealed portion of the edge of the neck as a standard of the tear position of the neck, and the distance between the edges of the neck is: Since the gusset part is configured to be smaller than the distance between the bending lines of the bent part and the front part and the back part are directly fused, the strength is weak in a predetermined amount region corresponding to the tear position indicating part,
Easy to tear for opening.

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 the entire width of the neck portion of the laminate sheet is provided. 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.

Further, the upper part of the straw is located so as to extend from the position where the perforation is formed in the neck, and the position holding means for holding the position of the straw with respect to the main body constituting part includes the neck and the straw in the neck. Since the straw is provided between the liquid container and the upper portion, the straw does not sink into the main body constituting portion of the liquid container but protrudes from the liquid injection opening by an amount extending beyond the perforation position without sinking into the main body constituting portion of the liquid container. Can be maintained.

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

According to the third aspect of the present invention, the position holding means is configured such that, of the heat-sealed portions at the edge of the neck, only the heat-sealed portion corresponding to the tearing position indicating portion is connected to the straw. Extending to the vicinity of the outer peripheral surface of the upper portion, the neck is formed by the extended heat-sealing portion in which the inner diameter of the neck is locally reduced, so that the position holding means can be easily formed and the straw can be held, At the time of opening or after opening, the straw does not sink into the main body constituting portion of the liquid container, and can maintain a state of protruding from the liquid injection opening by an amount extending beyond the position of the tear position indicating portion. .

[0038] According to the beverage container of the fourth aspect, the position holding means is provided so that the upper part of the straw positioned in the neck and the lower part of the perforation and the front surface part or the rear surface part are connected to each other. Since it is constituted by a locally heat-sealed point seal portion, the position holding means can be easily formed, and the straw can be held. Without protruding from the liquid injection opening by an amount extending beyond the perforation.

According to the beverage container of the fifth aspect, since the front and rear portions are made of a transparent or translucent material, the amount of the beverage can be easily grasped.

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

FIG. 6 is a front view showing a beverage container according to a third embodiment of the present invention before filling the beverage.

FIG. 7 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. 8 is a side view showing a conventional beverage container before filling the beverage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 100, 200 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 (main body constituent part) 12 Notch 12a Sewing machine Eyes 13, 113, 213 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 FA04 GA04 HF09 HG03 HN05 HP01 HP02 HT20 3E067 AA03 AB26 AC01 BA14A BB14A BB25A BC03A CA24 EA06 EB05 EB30 EE02 EE24 FA01 FC01

Claims (5)

[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 are narrower than the rest of the front surface portion and the back surface portion, and the upper portion of the narrow surface portion and the upper portion of the narrow back surface portion are opposed to each other. Edges that are thermally fused together and have a vertically extending neck portion between the edges of the neck portion. The separation is configured to be the same as or smaller than the distance between the bending lines of the bent portions of the gusset portion.The upper part of the neck forms an upper liquid injection opening that is opened by tearing, and as a guide of the tearing position of the neck, A tearing position indicating portion is provided at the fusional portion at the edge of the neck, and the front surface portion and the rear surface portion are made of a laminated sheet, and are located at positions corresponding to the tearing position indicating portions on the front surface portion and the rear surface portion. And a perforation is formed through the entire width of the neck except for at least one layer of the laminate sheet, and the upper part of the straw is raised to a position above the position where the perforation is formed in the neck. Position extending means for extending and holding the position of the straw with respect to the main body constituting portion is provided between the neck and an upper portion of the straw in the neck, and is provided along a perforation from the tear indicating portion. Get over the top of the straw Beverage container, characterized in that 該首 part in the so that it is openable. 2. The beverage container according to claim 1, wherein the tear position indicating portion is formed by a notch or a printing mark. 3. The position holding means, wherein, of the heat-sealed portions at the edge of the neck, only the heat-sealed portion corresponding to the tearing position indicating portion extends to the vicinity of the upper outer peripheral surface of the straw. 3. The beverage container according to claim 1, wherein the beverage container is extended and formed by an extended heat-sealing portion in which the inner diameter of the neck is locally reduced. 4. The position holding means is configured such that an upper portion of the straw positioned in the neck portion and below the perforation and the front surface portion or the rear surface portion are locally heat-sealed. 3. The beverage container according to claim 1, wherein the beverage container is constituted by a point seal portion. 5. 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.