JPH11314653A - Simplified bag container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cause a simplified bag container to be easily opened and its content to be easily discharged by a method wherein the bag can be easily cut by a cutter function of a thin plate at a place lower than a seal section of an opening part. SOLUTION: This container is provided with a thin plate 21 at a location lower than a seal part of an opening section 1. The thin plate 21 has a cutter function in which a convenient bag container 1A is cut at a position lower than the seal part of the opening section 1, and a holding function for keeping a shape of opening of the opening section 1 opened in a shape where the content may easily be discharged out. As a result, the convenient bag container 1A can be easily cut by a cutting function of the thin plate 21 at a location lower than the seal part of the opening section 1, resulting in that its opening may easily be performed. An opened shape of the opened opening section 1 can be kept by the holding function of the thin plate 21 in such a shape as one where the content can be easily fed out, resulting in that the content can be easily taken out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple bag container made of, for example, a flexible resin film single-layer material or a flexible laminated material obtained by laminating various kinds of resin films on the resin film. The present invention also relates to a simple bag container from which contents can be easily taken out. In addition,
In this specification, the simple bag container and the bag body are substantially synonyms.

[0002]

2. Description of the Related Art FIG.
This will be described with reference to FIGS. The examples shown in FIGS. 9 to 11 are described for a simple bag container of a self-standing bag. In the figure, A is a resin film (flexible film) of polyethylene, polypropylene, nylon, or the like, and has a cylindrical body 5, an opening 1 at the upper edge of the body 5, and a lower part of the body 5. And a bottom body 2 having a closed edge, that is, a conventional simple bag container. The bag body A is normally folded in a planar shape as shown in FIGS. 9 and 11 (A), and contains contents (for example, drinks, liquid foods, liquids such as vegetable oil, soy sauce, and liquid detergents, and flours). And powders such as powdered soaps, granular materials such as rice, semi-fluids such as paint and adhesives, hereinafter simply referred to as contents.) It is configured in.

As shown in FIG. 11A, the bag body A is formed by folding a substantially central portion of a single flexible film into a W-shape to form a front side portion (front side in the drawing) 100.
And an inverted V-shaped bottom portion 102 and a back portion 101. Alternatively, the bag body A is shown in FIG.
As shown in (A), one sheet of the flexible film is also placed between the lower end of the front side part (front side in the drawing) 100 and the lower end of the back part 101 of the same flexible film. Both lower ends of a bottom portion 102 formed by bending a flexible film into an inverted V-shape are connected.

The above-mentioned bag body A has a mouth portion having an upper edge opened (a seal margin 10 for sealing to seal an upper edge opening described later), and a machine for filling the bag body A with contents. A portion (including a chuck allowance for chucking by a not-shown portion) 1, a W bottom portion 2 whose lower edge portion is formed in a W shape,
Both left and right sides from the W bottom 2 to the mouth 1 (between the front side portion 100 and the back side portion 101, the front side portion 100
And the bottom part 102, the back part 101 and the bottom part 1
02), a lower edge sealing portion 6 in which a lower edge of the W bottom 2 is sealed, and a single mountain fold line 7 of the W bottom 2. Two valley bending lines of the W bottom 2 from the intersection of both ends of the bottom seal 2 with the side seal 3 (the inner edge of the lower edge seal 6)
8 is provided with left and right W-bottom seal portions 9 obliquely sealed up to 8 and holding concave portions 4 formed of curved concave lines provided on one or both sides of the side seal portions 3, and are generally symmetrical in plan view. Make As shown in FIG. 9, a portion of the holding recess 4 outside the broken line 4 'may be cut off.

The contents are filled from the mouth 1 into the bag body A which is folded into the above-mentioned normal planar shape. Then, since the bag body A is made of a flexible material,
The bag body A having the planar shape is formed in a three-dimensional shape. That is, as shown in FIG. 10 and FIG.
The central portion of the front side portion 100 and the back side portion 101 is swelled back and forth, and both left and right side seal portions 3 and the front side portion 1 are formed.
00 and the left and right sides of the back portion 101 are drawn left and right (in a direction substantially perpendicular to the front and rear bulging direction of the central portion of the front portion 100 and the back portion 101 described above), and the W bottom portion 2 The bottom is formed, and the bag body A having a planar shape is formed in a three-dimensional shape. At this time, the bottom (bottom portion 102) of the W bottom 2 is substantially square or rectangular, and the valley bending line 8 of the W bottom 2 from the mouth 1 is formed.
The upper half portion of the body portion 5 having the above-described portion has a roof shape, and the lower portion of the body portion 5 has a substantially rectangular parallelepiped shape. Concave portions 11 are formed in the left and right side seal portions 3. Then, after filling the contents, the contents can be sealed by sealing the front side portion 100 and the back side portion 101 of the upper edge opening of the mouth 1.

Next, the contents can be taken out by cutting at a position below the sealing portion 10 of the mouth portion 1 and opening the mouth portion 1. And since the above-mentioned simple bag container A is made of a flexible material, it can be folded and discarded in a substantially planar shape after use, so that it is less bulky than other containers such as blow-molded blow bottles and bottles. The volume of the waste can be reduced by that amount, the waste can be easily treated, and it is widely used. As the above-mentioned simple bag container A, for example, there is one described in JP-A-8-113249.

[0007]

However, since the above-mentioned conventional simple bag container A is made of a flexible film, when the flexible bag container A is cut at a position lower than the seal portion 10 of the mouth portion 1, the flexible film container A is made of a flexible film. By stretching action,
It is hard to cut. For this reason, when opening the mouth part 1, it is necessary to use scissors, a cutter, etc., which are separate from the simple bag container A. Further, since the above-described conventional simple bag container A is made of a flexible film, when the contents are taken out from the opened mouth portion 1, the opening shape of the mouth portion 1 is deformed by the flexible action of the flexible film. Easy to do. For this reason, it is difficult to take out the contents from the opening of the mouth 1. For example, when refilling the contents by applying the opening of the conventional simple bag container A to the mouth of another container, or when drinking the contents by applying the opening of the conventional simple bag container A to the lips, Since the opening of the bag container A is easily bent and the shape of the opening is deformed, a state occurs in which the contents of the bag container A spills out. Further, it has been proposed to reduce the opening area of the lip 1 in order to maintain the opening shape of the lip 1. However, when the content is high viscosity, such as a liquid detergent,
It is necessary to squeeze the simple bag container A by hand and squeeze it, or to change the squeezing position while holding it, so that the high-viscosity contents are discharged from the opening of the mouth 1 having a small area. For this,
It is troublesome to take out the contents, and troubles such as spilling the contents out have become a problem.

An object of the present invention is to provide a simple bag container which can be easily opened and contents can be easily taken out.

[0009]

SUMMARY OF THE INVENTION The present invention provides a cutter function for cutting at a position below a seal portion at a mouth portion, and a shape keeping function for keeping the opened shape of the opened mouth portion in a shape such that contents can easily come out. The thin plate provided with is provided at a position below the sealing portion at the mouth portion.

[0010] As a result, the simple bag container of the present invention can be easily cut at a position below the sealing portion at the mouth portion by the thin plate cutter function, so that opening is easy.
In addition, the shape of the thin plate can be maintained at the opened shape of the opened mouth portion in a shape that allows the contents to easily come out, so that the contents can be easily taken out.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, three examples of a simple bag container according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6 show a first embodiment of the simple bag container of the present invention. In the drawings, the same reference numerals as those in FIGS. 9 to 11 denote the same components. In the figure, 1A is a bag body. This bag body 1
A is made of a flexible film made of a front side portion 100, a back side portion 101, and an inverted V-shaped bottom side portion 102 between the front side portion 100 and the back side portion 101. The bag body 1A includes a mouth portion 1 having an open upper edge, a W bottom portion 2 having a lower edge portion formed in a W shape, and both left and right sides from the mouth portion 1 to the W bottom portion 2. , Front side portion 100, back side portion 101, and front side portion 1
00 and the bottom portion 102, and the back side portion 101 and the bottom portion 102 are each sealed with a side seal portion 3.
And

In the drawing, reference numeral 12 denotes a narrowing portion provided in a substantially intermediate portion of the left and right side seal portions 3 and narrowed inward.
When the bag body 1A is three-dimensionally formed by filling the contents, the narrowed portion 12 cuts into the inside, and the left and right side seal portions 3 of the three-dimensional bag body 1A are substantially laterally V-shaped.
This is for forming the U-shaped recess 13. The narrowed portion 12 is located at the upper end point 14 of the left and right side seal portions 3.
And a first intermediate point 1 between the front side portion 100 and the back side portion 101
It has a trapezoidal or quadrangular shape connecting the four points of the fifth and second intermediate points 16 and the lower end point 17 of the left and right side seal portions 3. The aperture section 12 may have a triangular shape connecting three points, an upper end point, one intermediate point, and a lower end point.

In the figure, reference numeral 18 denotes a side seal vertical portion. The side seal vertical portions 18 are the right and left side seal portions 3, and are provided substantially perpendicularly from the intersection of the upper end 14 of the narrowed portion 12 and the right and left side seal portions 3 toward the mouth 1 side. Become.

In the figure, reference numeral 19 denotes a side seal inclined portion. The side seal inclined portion 19 is provided so as to be inclined inward from the upper end 20 of the side seal vertical portion 18 toward the mouth portion 1. This side seal slope 1
Reference numeral 9 indicates that the two seal portions are substantially parallel and perpendicular to the mouth portion 1 and have a divergent shape from the mouth portion 1 to the upper end 20 of the side seal vertical portion 18. The width of the side seal inclined portion 19 at the mouth 1 is set to such an extent that a large opening area of the opened mouth 1 can be obtained. For example, as shown in FIGS. 5B and 6, when the opening of the mouth 1 is formed in a square or a rhombus, the length of the diagonal line of the opening is about 30 mm or more. .

The above-described constricted portion 12, side seal vertical portion 18, and side seal inclined portion 19 are formed by the front side portion 1.
00 and the back side portion 101 are fixed by heat welding or bonding. Further, the outside of the side seal inclined portion 19 may be cut off along the alternate long and short dash line 3 '.

In the figure, 21 is a thin plate. The thin plate 21 is provided on the inner surface of the front side portion 100 and the back side portion 101 facing each other, and is fixed to the position below the seal portion 10 of the mouth portion 1 by heat welding or bonding. . The thin plate 21 is, for example, a simple bag container 1
A is made of almost the same material as A and has a width of about 7 to 1
It has a tape shape of 0 mm and a thickness of about 0.15 mm. The thin plate 21 is used to hold the simple bag container 1 </ b> A
It has a cutter function for cutting at a position lower than 0 and a shape keeping function for keeping the opened shape of the opened mouth portion 1 in a rhombic shape from which the contents can easily come out. In this example, the thickness of the thin plate 21 and the front side portion 100 and the back side portion 10
3 is approximately the same as the thickness of the simple bag container 1, the thickness of the thin plate 21 is larger than the thickness of the front portion 100 and the back portion 101 of the simple bag container 1 in order to emphasize the thin plate 21. Is also shown thickly.

In the figure, reference numeral 22 denotes a notch. The notch 22 is formed in the upper corner portion of the thin plate 21 (the front side portion 100 and the back side portion 1) in the one side (left side) side seal portion 3.
(A corner formed by the side surface fixed to 01 and the upper end surface) 23.

The simple bag container of the present invention according to this embodiment has the above-described configuration, and an example of use will be described below. First, the contents are filled from the mouth 1 into the bag body 1A which is normally folded into a planar shape (see FIG. 1), and the front side portion 100 of the upper edge opening of the mouth 1 is filled.
The contents can be hermetically sealed by sealing the inner portion and the back portion 101. By filling the contents into the bag body 1A, as described above, the bag body 1A is made of a flexible material, so that the planar bag body 1A is formed in a three-dimensional shape (see FIGS. 2 and 3). ). When formed three-dimensionally, a concave portion 13 is formed at a position corresponding to the throttle portion 12 of the left and right side seal portions 3.

Next, the bag body 1A is cut from the notch 22 at a position below the seal portion 10 of the mouth portion 1. At this time,
Since the upper corner portion 23 of the thin plate 21 becomes a cutter, the bag body 1A can be easily cut at a position below the seal portion 10 of the mouth portion 1, so that scissors and cutters separate from the simple bag container 1A are unnecessary. The opening of the lip 1 is facilitated.

Then, the left and right side seal portions 3 of the opened mouth portion 1 are crushed inward in the direction of the arrow in FIG. 5, and the center of the front side portion 100 and the back side portion 101 of the opened mouth portion 1 is substantially centered. After bending outward and pressing the center tip with a fingertip, opening the mouth 1,
The mouth part 1 is formed in a square or a rhombus as shown in FIGS. At this time, the thin plate 21 serves as a shape-retaining plate, and the opened shape of the opened mouth portion 1 can be maintained in the above-mentioned square or rhombic shape in which the contents can easily come out, so that the contents can be easily taken out. In particular, since the substantially central corners of the front side portion 100 and the back side portion 101 of the mouth portion 1 that is bent into a mountain shape become a right angle or an acute angle, the shape of the corner portion is more firmly retained, and the blow bottle, bottle, A mouth almost equivalent to the mouth of a can or the like is obtained, and when refilling into another container 26 or drinking drinking water as shown in FIG. Can be used in direct contact with the bottle mouth or lips, so that the contents can be taken out without spilling out.

Furthermore, the shape of the thin plate 21 can be maintained, so that the shape of the opened mouth 1 can be maintained, so that the opening area of the mouth 1 can be increased. For this reason, even if the content has a high viscosity, the content can be easily and safely taken out without strongly pressing with a hand and squeezing or changing the squeezing position by changing the position.

FIG. 7 shows a simplified bag container according to a second embodiment of the present invention. In the drawing, the same reference numerals as those in FIGS. 1 to 6 and 9 to 11 denote the same components. In the figure, reference numerals 24 and 25 denote a male chuck and a female chuck (male fastener, female fastener). The male chuck 24 and the female chuck 2
Reference numeral 5 designates an opening and closing portion of the mouth portion 1. The male chuck 24 and the female chuck 25 are fixed to the front side portion 100 and the rear side portion 101 by bonding, welding, or the like.
1 ', 21' and a male part 24 'and a female part 25' integrally provided substantially at the center of the opposing surfaces of the pedestals 21 ', 21'. The above-mentioned pedestal part 21 ', 2
1 'has a cutter function, and pedestals 21', 21 '
The male part 24 'and the female part 25' have a shape-retaining function.
The male chuck 24 and the female chuck 25 are ordinary chucks that can open and close the mouth of a general simple bag container, and are made of substantially the same material as the simple bag container 1A of the present invention. Use a chuck.

Since the simple bag container of the present invention in this embodiment uses the male chuck 24 and the female chuck 25 as the thin plates 21 and 21, as shown in FIG. When the chuck 25 is removed, the mouth 1 can be opened, and as shown in FIG. 7A, when the male chuck 24 and the female chuck 25 are fitted, the mouth 1 can be closed.

FIG. 8 shows a third embodiment of the simple bag container of the present invention. In the drawing, the same reference numerals as those in FIGS. 1 to 7 and 9 to 11 denote the same components. The simple bag container 1A of the present invention in this embodiment is applied to the conventional simple bag container A described above. As described above, the simple bag container of the present invention is an arbitrary self-standing simple bag container, that is, the bottom portion is formed of the W bottom portion 2 and, when the contents are filled, the bottom portion becomes a square or a rectangle and the simple bag container can be self-standing. Applicable to bag containers. Moreover, the simple bag container of the present invention can be applied to a flat-bottomed simple bag container, a gusset simple bag container, and the like, in addition to the above-described self-standing simple bag container.

In the above embodiment, the thin plate 21 is provided on each of the inner surfaces of the front portion 100 and the back portion 101. However, the thin plate 21 may be provided on either the front portion 100 or the back portion 101. good. Further, it may be provided on at least one of the outer surface of the front portion 100 and the outer surface of the back portion 101.

[0026]

As is apparent from the above description, the simple bag container of the present invention is easily cut at a position below the seal portion at the mouth portion by the cutter function of the thin plate (the base portion of the male chuck and the female chuck). Can be easily opened. In addition, the shape of the thin plate (male chuck, female chuck) can be maintained in the shape of the opened mouth at the shape of the opened mouth so that the contents can easily come out, so that the contents can be easily taken out.

[Brief description of the drawings]

FIG. 1 is a front view of a simple bag container according to a first embodiment of the present invention, which is folded in a planar shape.

FIG. 2 is a front view of a state in which contents are filled and sealed in a bag body.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

4 corresponds to a cross-sectional view taken along the line III-III in FIG. 2 in a state in which a seal portion of the lip is cut off, (A) is a cross-sectional view in a state where the lip is closed, and (B) is an open lip. It is sectional drawing of a state.

FIG. 5A is a plan view showing a state where a mouth portion is closed, and FIG.
FIG. 4 is a plan view showing a state where a mouth portion is opened.

FIG. 6 is an explanatory view showing a state where contents are being refilled from the simple bag container of the present invention to another container.

FIG. 7 shows a second embodiment of the simple bag container of the present invention, and shows a state in FIG.
Corresponding to the sectional view taken along the line III, (A) is a sectional view in a state where the mouth is closed, and (B) is a sectional view in a state where the mouth is open.

FIG. 8 is a front view of the simple bag container according to the third embodiment of the present invention, which is folded in a planar shape.

FIG. 9 is a front view showing a conventional simple bag container, which is folded in a planar shape.

10 is a front view of the bag body shown in FIG. 9 in a state in which contents are filled and sealed.

11A is a schematic cross-sectional view showing each part in a state of being folded into a planar shape, and FIG. 11B is a schematic cross-sectional view showing each part in a state in which contents are filled and sealed in a bag body. is there.

[Explanation of symbols]

1A: bag body, 1 ... mouth, 2 ... W bottom, 3 ... side seal, 5 ... trunk, 6 ... lower edge seal, 7 ... mountain bent line, 8 ... valley bent line, 9 ... W bottom seal Part, 10: seal margin, 12: throttle part, 13: concave part, 14: upper end point, 1
5: first intermediate point, 16: second intermediate point, 17: lower end point, 1
8 ... vertical part of side seal, 19 ... inclined part of side seal,
20: Side seal vertical part and side seal inclined part, second
Intersection with the side seal inclined portion, 21: thin plate, 22: notch, 23: upper corner, 24: male chuck, 25: female chuck, 26: other container.

Claims (2)

[Claims] 1. A flat body comprising a flexible film, comprising a cylindrical body, an opening at the upper edge of the body, and a closed bottom at the lower edge of the body. Forming a three-dimensional shape by filling the contents from the mouth, sealing the mouth and sealing the contents, and cutting at a position below the sealing portion of the mouth, cutting the mouth In a simple bag container capable of taking out the contents by opening, a thin plate is provided at a position below the seal portion of the mouth portion, and the thin plate is below the seal portion of the mouth portion. A simple bag container, comprising: a cutter function for cutting at the position of (1), and a shape keeping function for maintaining the opened shape of the opened mouth portion in a shape from which the contents can easily come out. 2. The simple bag container according to claim 1, wherein the thin plate is a chuck that can open and close the mouth portion.