JP2001097404A - Liquid storage pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent sagging, spilling, spouting, scattering and the like of a liquid agent at a low cost when the liquid agent is transferred from a pouch into a container for the actual use. SOLUTION: A pouch 10 is so formed as to overlap films and join peripheral edges to store a liquid agent, and a planned unsealing section (cutting guide line) 15 parting a pouch main body 17 from a cutting section 16 is formed on a sealed section 12, and a closed line extended from a liquid agent storage section of the pouch main body 17 to a position beyond the planned unsealing section 15 is provided, and a liquid agent pouring line utilizing the position of the planned unsealing section 15 as a pouring outlet 14 is formed by cutting off the cutting section 16. Engaging means 9 for keeping the open state of the pouring outlet 14 are provided on both sides of the pouring outlet 14, and at least one of the engaging means 9 is formed of an engaging piece 92, and the width dimension on the side of the end 92b of the engaging piece 92 is formed larger than the width dimension on the side of a base end 92a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid storage pouch formed by stacking films and joining peripheral edges thereof so as to be able to store a liquid material. When refilling into another container,
The present invention relates to a technique suitable for preventing dripping, spilling, blowing, scattering and the like of a liquid agent.

[0002]

2. Description of the Related Art A product filled with a liquid material in a small container such as a household cleaning product becomes thicker in order to improve the strength and ease of use of the container, and the structure of a liquid injection section becomes complicated, so that the container cost is increased. Is becoming more expensive, and waste disposal of used empty containers may occur.Therefore, recently, products that are filled with thinner and easy-to-dispose soft plastic containers filled with cleaning agents etc. for refilling are sold. It is becoming.

[0003] Among the refillable simple containers, those formed into a folding bag shape are generally called pouches, and FIG.
As shown by reference numeral 50 in (a), the films are stacked and the peripheral edge is heat-sealed leaving the liquid material filling port 52 at the top so that the liquid material can be stored in the pouch body 57.
The pouch 50 has a cutting guide wire 53 for separating a pouch body 57 and a cutting portion 54 from a part of a seal portion 51 formed by heat sealing, and a pouch body 57.
Has a tubular closed path 58 extending from the liquid material storage section to a position beyond the cutting guide line 53.

[0004] The pouch 50 is provided with the above-mentioned liquid material filling port 52.
When the liquid agent is injected and filled from the bottom, the bottom spreads out roughly elliptical,
As shown in FIG. 7B, it becomes possible to stand alone with the liquid material L stored. If the liquid material filling port 52 is sealed by heat sealing after filling, a closed container containing the liquid material is obtained.

In refilling, when cutting is performed along the cutting guide line 53 with scissors or a hand, the cutting portion 54 is cut from the pouch main body 57, and the closing path 58 is formed of a liquid material with the position of the cutting guide line as the spout 55. Form an outlet channel.
Therefore, the content liquid L can be poured out from the spout 55 and transferred to a container for actual use.

Since it is complicated to use scissors or the like for cutting the cutting portion 54, a wedge-shaped notch 56 is usually provided in the seal portion 51 which is at least one end of the cutting guide wire 53, and the cutting portion 54 is cut. Knob with your finger, this notch 5
The cutting portion 54 can be cut by tearing one of the six as a starting point.

Further, as shown by reference numeral 60 in FIG. 8A, the films are stacked and the peripheral edge is heat-sealed leaving a liquid material filling port at the top, so that the liquid material can be stored in the pouch body 67. Things also exist. This pouch 60
Has a cutting guide wire 63 for separating the pouch body 67 and the cutting portion 64 from a part of a seal portion 61 formed by heat sealing, and when a liquid material is injected and filled from the liquid material filling port, a bottom portion is formed. It spreads roughly in an elliptical shape, and becomes capable of standing independently in a state in which the liquid agent is stored. If the liquid filling port is heat-sealed and sealed after filling, a sealed container containing the liquid is obtained.

At the time of refilling, when cutting is performed along the cutting guide line 63 starting from the notch 66, the cutting portion 64 is cut from the pouch main body 67, and the closing path 68 is connected to the cutting guide line 63.
Is formed as a pouring port 65. Therefore, as shown in FIG. 8B, the content liquid L can be poured out from the spout 56 and transferred to the actually used container Y.

[0009]

However, since the actual container used for refilling the liquid containing pouch at home or the like generally has a narrow mouth, the liquid agent may drop or spill out of the container when the liquid is transferred. In many cases, the liquid does not exchange with the air at the mouth of the container and is blown out. In particular, when the liquid agent contains a surfactant, the liquid overflows due to foaming and may not be transferred. Further, since the pouch is made of a soft plastic, the pouring path may be bent near the pouring port at the time of liquid transfer, and may block the liquid passage. Further, when the liquid agent such as a bleaching agent contains hydrogen peroxide, hypochlorite, organic peracid, alkali or the like, it may be scattered and adversely affect the environment.

In order to solve such a problem, as shown in FIG. 9, pipes 55a and 65a, which are separate members from the film, are provided inside the spouts 55 and 65, or the spouts are formed in the film at the spouting path. In some cases, the ridges 55b and 65b are provided along the direction in which the pouches 55 and 65 are poured. However, since the manufacturing process becomes complicated and the manufacturing cost increases with respect to the original pouch manufacturing cost, another low-cost pouch is used. Means were desired.

In addition to the above, there are techniques as described in Japanese Utility Model Laid-Open No. 5-072775 and Japanese Patent Laid-Open No. Hei 11-13096. In these techniques, the upper end of the pouch is joined by cutting to prevent deformation of the container, or the upper end of the pouch is joined by double-sided tape, stapler, etc. to prevent deformation, but a simple cut is used. In the case of, since it is easy to come off when locked, the above-mentioned inconvenience at the time of liquid transfer is not solved, and when joining with a double-sided tape, a stapler or the like, the one shown in FIG. As described above, there is a problem that the manufacturing cost increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to improve the structure of a pouch so that a liquid can be dripped, spilled, spouted,
It is an object of the present invention to provide a liquid storage pouch that prevents scattering and the like and prevents the injection path from being clogged by being bent near a spout at the time of liquid transfer so that the liquid can be transferred smoothly at low cost.

[0013]

According to the present invention, there is provided a pouch formed by stacking films and joining peripheral edges thereof so that a liquid agent can be accommodated therein. The pouch is provided on a seal formed by the above-mentioned joining. It has a tearable opening portion (cutting guide line) that separates the main body and the cutting portion, and has a closed path extending from the liquid agent storage portion of the pouch body to a position beyond the opening scheduled portion, and the closed circuit is to be opened. The cutting portion is cut along the portion and opened to form an outlet for the liquid agent with the position of the scheduled opening portion as the outlet, and the opening of the outlet is maintained on both sides of the outlet. The above problem is caused by providing a locking means, and at least one of the locking means is formed of a locking piece, and a width dimension of the locking piece on the distal end side is set to be larger than a width dimension on the base end side. Was solved.

In the liquid containing pouch according to the present invention, since the locking means is provided on both sides of the spout, the spout can be easily maintained in a cylindrical shape at the time of liquid transfer. Bends and obstructs the liquid passage,
The narrowing of the liquid passage can be prevented. In addition, since it is possible to easily secure a liquid passage at the time of liquid transfer without performing a process such as providing a separate member from the film or forming a ridge, the liquid material dripping, spilling, blowing, and scattering at the time of liquid transfer. Thus, it is possible to provide a liquid containing pouch at a low cost, in which liquid transfer can be smoothly performed.

In the above, the locking means may be configured so as to be capable of sufficiently locking so as to prevent the pouring path from being bent near the pouring outlet to close the liquid passage or to narrow the liquid passage. Any shape may be used. For example, a locking hole provided in the seal portion located on one side with respect to the spout located near the center on the upper side of the pouch, and a locking hole located on the other side of the spout and inserted into the locking hole. It is possible to adopt a configuration including a locking piece (locking projection) to be stopped.

Here, the locking hole is provided as a notch such as a straight line or a hole such as a straight line or a curved line, and is parallel to the end of the spout, or is formed at a predetermined angle with the spout. Can be located. In addition, the width of the base of the locking projection can be set smaller than the width of the tip of the locking projection. That is, the width of the base end of the locking piece (locking projection) can be set to be smaller than the width of the wide portion provided on the distal end side. Alternatively, the locking hole and the locking protrusion may be formed in the seal portion as cuts having the same planar shape, and may be locked by overlapping and inserting them.

The locking means may be a zipper provided on the film surface on both sides of the spout, and the direction in which the zipper is arranged is parallel to the end of the spout or at a direction having an angle with the end. Can be set to

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of a liquid containing pouch according to the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention. A liquid containing pouch (pouch) 10 shown in FIG. 1 is configured such that a rectangular film is laminated and the periphery thereof is heat-sealed leaving a liquid material filling port at the top so that the liquid material can be stored. When the liquid material filling port was heat-sealed to accommodate the liquid material, the liquid material was formed horizontally in a part of the seal portion 12 formed by the heat sealing from the side peripheral portion above the pouch to the side peripheral portion. The pouch 10 is divided into a pouch main body 17 and a cutting portion 16 by a tearable opening portion (cutting guide line) 15 that can be torn by hand. Here, the liquid material filling port can be opened over substantially the entire upper side of the pouch 10.

The pouch 10 has the cutting guide wire 15
The notch 18 is formed in the seal part 12 which becomes one end or both ends of each. These cutouts 18 are used for cutting section 1
6 is easy to cut. Further, in the pouch 10, when the liquid material filling port is heat-sealed and the liquid material is stored, a closed path 19 extending from the liquid material storage portion of the pouch main body 17 to the inside of the cutting portion 16 beyond the cutting guide wire 15 is formed. You. The closing path 19 forms a liquid material pouring path in which the center position of the cutting guiding line 15 is used as the spout 14 when the cutting section 16 is cut along the cutting guiding line 15.

The seal portions 12 on both sides of the pouch body 17 where the spouts 14 are formed have the spouts 1 at the time of liquid transfer.
Locking means 9 for maintaining the open state of 4 is provided. Here, as shown in FIG. 1, the locking means 9 is provided on one side with respect to the spout 14 located near the center on the upper side of the pouch main body 17 and has a locking hole 91 provided in the seal portion 12.
And a locking projection 92 located on the other side of the pouch body 17 with respect to the spout 14 and inserted into the locking hole 91 and locked.

The locking hole 91 is provided as a linear hole formed in the seal portion 12 and is formed at an angle of, for example, 45 degrees with the cutting guide line 15 forming the spout 14. It is located on the pouch body 17 so as to be away from the cutting guide wire 15 from the outlet 14 side toward the outer side edge. The width of the locking hole 91 is such that the locking projection (locking piece) 92 can be inserted and the locking projection 9 is locked.
2 is set to such an extent that it does not drop.

The locking projection 92 is provided on the seal portion 12 opposite to the locking hole 91 with respect to the spout 14, and protrudes from the outer shape line 13 of the pouch body 17. Here, the pouch body 1
7 is the shoulder of the pouch body 17,
From the cutting guide line 15 forming the spout 14 to the cutting guide line 15 at an angle of, for example, 45 degrees, the cutting guide line 1 is directed from the spout 14 side to the outer side of the side edge.
5, and the locking portion 92 is provided in a direction substantially orthogonal to the outline 13 of the pouch body 17. In the locking projection 92, the width of the base end 92a is set to be smaller than the width of the wide portion 92b provided on the distal end side. The width of the wide portion 92b is set to be substantially equal to or slightly larger than the length of the locking hole 91 so that the wide portion 92b can be inserted into the locking hole 91 and the locking projection 92 can be locked at the time of insertion. You.

At the bottom of the pouch 10, a pouch body 1 is provided.
The folding film forming the bottom of 7 is folded,
It is sealed to the skin film with an arc-shaped heat seal line so as to form a substantially elliptical bottom surface when the liquid agent is filled. At both corners of the bottom of the pouch 10, heat seal portions for joining the facing skin films to each other are formed.

The pouch 10 is filled with a liquid agent from the liquid agent filling port, and then sealed by heat-sealing the liquid agent filling port. In the state where the liquid agent is stored, the folding film at the bottom spreads and the substantially elliptical bottom surface is formed. Form and become self-supporting as a container. At this time, as shown in FIG. 1, a closed path 19 serving as the spout 14 is formed.

FIG. 2 is a perspective view showing a refill state of the liquid containing pouch according to the first embodiment of the present invention.

When refilling, use one hand to cut
When the pinch 6 is pinched and the other finger is pulled over the pouch body 17 and pulled to tear the notch 18, the film is torn along the cutting guide line 15, and the cut portion 16 is moved to the pouch body 17.
And a spout 14 is formed. At the same time, the film is pressed outward by the pressure of the liquid content contained in the pouch body 17.

Next, when the locking projection 92 is inserted into the locking hole 91, the locking projection 92 engages with the locking hole 91 because the width of the wide portion 92b is larger than the width of the base end 92a. Is stopped. As a result, as shown in FIG. 2, the spout 14 is pressed inward from both sides thereof, and the film is pressed outward by the pressure of the liquid content contained in the pouch body 17. The central positions of the opposing films forming the film 14 are swelled in the thickness direction, and the spout 14 is opened, and the spout 1 is opened.
4 can be easily maintained as a cylindrical shape.

Therefore, when the body of the pouch body 17 is gradually inclined as shown in FIG. 2 while the pouch body 17 is supported by hand, the liquid medicine in the pouch is smoothly transferred from the spout 14 into the actual container. Liquid. At this time, when supporting the pouch body 17 by hand, the spout 14 is maintained in a cylindrical shape only by holding the weight of the pouch body 17 and pressed from both sides of the spout 14 by hand to maintain the open state. If not, the locking means 9
Thereby, the spout 14 can be easily maintained as a cylindrical shape.

Therefore, it is possible to prevent the liquid discharge passage 19 from being bent near the discharge outlet 14 to close the liquid passage 19 and to prevent the liquid passage 19 from being narrowed. At the same time, since the spout 14 is easily maintained in a tubular shape, the liquid does not drop or spill out of the container. Further, it is possible to easily secure the liquid passage 19 at the time of liquid transfer by using the locking means 9 at the same time as the film cutting required when forming the pouch 10 without performing a process such as providing a separate member from the film or forming a ridge. The liquid containing pouch 1 can prevent the dripping, spilling, blowing, scattering, etc. of the liquid agent at the time of liquid transfer, and can transfer the liquid smoothly.
0 can be provided at low cost.

Note that the locking hole may be convexly curved toward the liquid storage portion side of the pouch main body 17 or, conversely, may be convexly curved outward from the liquid storage portion of the pouch main body 17. Further, it is also possible to form both ends of the locking hole in a bent shape. In this case, it is possible to further prevent detachment of the locking projection 92 from the locking hole 91, and Can be more reliably locked by the locking projection 92.

Hereinafter, a second embodiment of the liquid containing pouch according to the present invention will be described.
Embodiments will be described with reference to the drawings.

FIG. 3 shows a second embodiment of the present invention. The liquid containing pouch (pouch) 20 shown in FIG. 3 is different from the first embodiment shown in FIGS. That is, in FIG. 3, the liquid containing pouch 20 is formed by laminating a rectangular film and heat-sealing the periphery of the pouch leaving a liquid filling port at the top so that the liquid can be stored.
When a liquid material is accommodated by heat-sealing the liquid material filling port, the sealing portion 22 formed by the heat sealing is used.
Has a tearable opening portion (cutting guide line) 25 that is formed horizontally from the side edge to the side edge above the pouch, and the pouch 20 is cut by the cutting guide line 25. Is divided into a pouch main body 27 and a cutting section 26, and the length dimension of the cutting section 26 is set substantially equal to the width dimension of the pouch main body 27.

The pouch 20 has the cutting guide wire 25
Notches 28 are respectively formed in the seal portions 22 at both ends of the seal member 22. These notches 28 facilitate cutting of the cutting portion 26. A closed path 29 is formed in the pouch 20 to extend from the liquid storage portion of the pouch main body 27 to the inside of the cutting portion 26 beyond the cutting guide wire 25 when the liquid material is filled by heat sealing the liquid filling port. . The closed path 29 forms a liquid material pouring path with the position of the cutting guide line 25 as the spout 24 when the cutting section 26 is cut along the cutting guide line 25.

The seal portions 22 on both sides of the pouch body 27 where the spout 24 is formed are provided with the spout 2 at the time of liquid transfer.
Locking means 9 for maintaining the open state of 4 is provided. Here, as shown in FIG. 3, the locking means 9 is provided on one side with respect to the spout 24 located near the center on the upper side of the pouch main body 27 and has a locking hole 91 provided in the seal portion 22.
And a locking projection 92 which is located on the other side of the pouch body 27 with respect to the spout 24 and is inserted into the locking hole 91 and locked.

The locking hole 91 is provided as a linear hole formed in the seal portion 22 and has a closed path 2 serving as a pouring path.
9 is positioned on the pouch main body 27 in parallel with the flow path direction, that is, in parallel with the side line of the pouch main body 27. The width of the locking hole 91 is set so that the locking projection 92 can be inserted and the locked locking projection 92 does not fall off.

The locking projection 92 is provided on the seal portion 22 on the side opposite to the locking hole 91 with respect to the spout 14 by using the corner of the outer shape of the pouch body 27 which is substantially rectangular. As the locking projection 92, a cutout 93 is provided on the side of the pouch main body 27. The cutout 93 forms a base end, and the distal end portion divided by the cutout 93 is a wide portion. A locking projection 92 is formed as 92b and inserted into the locking hole 91 to be locked.

The cut portion 93 forms a locking projection 92 when the cutting portion 26 is cut along the cutting guide line 25, and the locking projection 92 can be locked in the locking hole 91. The cutout 93 is formed at a position separated from the cutting guide wire 25 by a distance set to be substantially equal to or slightly larger than the length of the locking hole 91 so as to have the dimensions, and the cutout 93 is formed in the outer shape of the pouch main body 27. The cutting guide wire 2 is on the spout 24 side than on the side
5 is provided to be inclined. This allows
When the locking projection 92 is inserted into the locking hole 91, the locking projection 92 can be locked while preventing the locking projection 92 from dropping out of the locking hole.

The bottom of the pouch 20 has a pouch body 2
The folding film forming the bottom of 7 is folded,
It is sealed to the skin film with an arc-shaped heat seal line so as to form a substantially elliptical bottom surface when the liquid agent is filled. At both corners of the bottom of the pouch 20, heat seal portions for joining the facing skin films to each other are formed.

After the pouch 20 is filled with a liquid material through the liquid material filling port and then heat-sealed to the liquid material filling port, the pouch 20 is hermetically sealed. Form and become self-supporting as a container. At this time, as shown in FIG. 3, a closed path 29 serving as the spout 24 is formed.

At the time of refilling, as in the first embodiment shown in FIG. 2, the cutting portion 26 is pinched by one finger, and the other finger is pulled over the pouch body 27 and pulled to tear the notch 28. 25, the cut section 26 is cut from the pouch body 27, the spout 24 is formed, and the cut section 93 is formed.
As a result, a locking projection 92 is formed.

Next, when the locking projection 92 is inserted into the locking hole 91, the width of the wide portion 92b becomes equal to the width of the base of the locking projection 92 formed by the notch 93 serving as the base end. The locking projection 92 is locked in the locking hole 91 because it is larger. As a result, the spout 24 is pressed inward from both sides thereof, and the film is pressed outward by the pressure of the liquid content contained in the pouch main body 27. The center position of the film to be swelled in the thickness direction thereof, the spout 24 is opened, and the spout 24 can be easily maintained in a cylindrical shape, so that the pouch body 27 is bent at the time of pouring. Can be prevented.

Therefore, when the body of the pouch main body 27 is gradually inclined while the pouch main body 27 is supported by hand, the liquid medicine in the pouch is smoothly transferred from the spout 24 into the actual use container.
At this time, when the pouch body 27 is supported by hand, the spout 24 is maintained in a tubular shape only by holding the weight of the pouch body 27, and the spout 24 is manually pressed from both sides of the spout 24 to maintain the open state. Even if not, the spout 24
Can be easily maintained as a cylindrical shape.

Accordingly, it is possible to prevent the liquid discharge passage 29 from being closed near the liquid discharge port 24 to close the liquid passage 29 and to prevent the liquid passage 29 from being narrowed. At the same time, since the spout 24 is easily maintained in a tubular shape, the liquid does not drip or spill out of the container. In addition, blowing and scattering of the liquid agent due to foaming or the like are prevented. Further, it is possible to easily secure the liquid passage 29 at the time of the liquid transfer by using the locking means 9 at the same time as the film cutting necessary for forming the pouch 20 without processing such as providing a separate member from the film or forming a ridge. Can be provided only by forming the liquid storage pouch 20 at a low cost, which can prevent dripping, spilling, blowing, scattering, and the like of the liquid agent at the time of liquid transfer, and can smoothly transfer the liquid. . Furthermore, the outline shape of the pouch 20 can be made substantially rectangular, so that handling, such as conveyance, can be improved as compared with the first embodiment shown in FIGS.

The locking hole may be convexly curved toward the liquid storage portion side of the pouch main body 27, and conversely, may be convexly curved outward from the liquid storage portion of the pouch main body 27. Further, it is also possible to form both ends of the locking hole in a bent shape. In this case, it is possible to further prevent detachment of the locking projection 92 from the locking hole 91, and Can be more reliably locked by the locking projection 92.

Hereinafter, a third embodiment of the liquid containing pouch according to the present invention will be described.
Embodiments will be described with reference to the drawings.

FIG. 4 shows a third embodiment of the present invention. The liquid containing pouch (pouch) 20 shown in FIG. 4 is different from the second embodiment shown in FIG. That is, in FIG. 4, the sealing portions 2 of the pouch 20 at both sides where the spout 24 is formed are formed.
2 is provided on the seal portion 22 as a locking means 9 for maintaining the opened state of the spout 24 at the time of liquid transfer, which is located on one side of the spout 24 located near the center on the upper side of the pouch 20. The locking hole 91 is provided on the other side of the spout 24, and the locking protrusion 92 is inserted into the locking hole 91 and locked.

The locking hole 91 is provided as a linear hole formed in the seal portion 22, and is formed at an angle of, for example, 45 degrees with the cutting guide wire 25 forming the spout 24. The pouch main body 27 is positioned so as to be away from the cutting guide wire 25 from the outlet 24 side toward the outer side edge. The width of the locking hole 91 is set so that the locking projection 92 can be inserted and the locked locking projection 92 does not fall off.

The locking projection 92 is formed on the side opposite to the locking hole 91 with respect to the spout 24 so as to cut out the outer shape of the locking projection 92 having a substantially arrow-shaped base end 92a connected thereto. 22
Is cut to form the pouch body 27. Here, in the locking convex portion 92, the width dimension of the base end 92a is
The width is set to be smaller than the width of the wide portion 92b provided on the tip side. The width of the wide portion 92b is the same as that of the locking hole 91.
The length of the locking hole 91 is set to be substantially equal to or slightly larger so that the locking protrusion 92 can be locked at the time of insertion. Here, the tip of the arrow of the locking projection 92 is
The direction is set in the direction from the outside of the pouch body 27 toward the center, that is, in the direction toward the liquid container, and is positioned at an angle of, for example, 45 degrees with the cutting guide line 25.

At the time of refilling, similarly to the first embodiment shown in FIG. 2, the cutting portion 26 is cut from the pouch body 27 along the cutting guide line 25, and the locking projection 92 is inserted into the locking hole 91. And lock. Thereby, the spout 24
Can be easily maintained as a cylindrical shape. Therefore, it is possible to prevent the discharge path from being bent near the outlet 24 to close the liquid passage 29 and to prevent the liquid passage 29 from being narrowed. At the same time, since the spout 24 is easily maintained in a tubular shape, the liquid does not drip or spill out of the container. In addition, blowing and scattering of the liquid agent due to foaming or the like are prevented. Further, it is possible to easily secure the liquid passage 29 at the time of the liquid transfer by using the locking means 9 at the same time as the film cutting necessary for forming the pouch 20 without processing such as providing a separate member from the film or forming a ridge. Can be provided only by forming the liquid storage pouch 20 at a low cost, which can prevent dripping, spilling, blowing, scattering, and the like of the liquid agent at the time of liquid transfer, and can smoothly transfer the liquid. .

The locking hole may be convexly curved toward the liquid storage portion side of the pouch main body 27 or, conversely, may be convexly curved outward from the liquid storage portion of the pouch main body 27. Furthermore, it is also possible to form both ends of the locking hole in a bent shape. In this case, the locking is facilitated and the locking projection 92 is further prevented from being detached from the locking hole 91. And a locking projection 92 into the locking hole 91
Can be more reliably locked.

Hereinafter, the fourth embodiment of the liquid containing pouch according to the present invention will be described.
Embodiments will be described with reference to the drawings.

FIG. 5 shows a fourth embodiment of the present invention. The liquid containing pouch (pouch) 20 shown in FIG. 5 is different from that of the third embodiment shown in FIG. That is, in FIG. 5, the locking means 9 of the pouch 20 has a configuration in which the locking projections 92 are provided on the seal portions 22 on both sides of the spout 24 located near the center on the upper side of the pouch 20. Is done.

Here, similarly to the locking projection 92 shown in FIG. 4, the locking projection 92 is sealed so as to cut out the outer shape of the locking projection 92 having a substantially arrow shape connected to the base end 92a. Part 2
2 are formed on the pouch main body 27 by cutting, and the directions of the arrows are set to be opposite to each other. That is,
The tip of the arrow of the locking projection 92 is set in a direction from the center of the pouch body 27 to the outside, that is, in a direction to the outside from the liquid container, and the cutting guide line 25 and the
It is positioned at an angle of 5 degrees. In the present embodiment, the hole formed by one of the cutouts for forming the locking projection 92 is consequently formed in the same manner as the locking hole 91 described above. Will be locked.

Therefore, when refilling, the locking projection 9
The other locking projection 92 is inserted into the hole formed by one of the cutouts for forming No. 2 and locked. At this time, the locking projections 92 indicated by arrows of the same type are overlapped with each other. By folding, by locking each other,
The spout 24 can be easily maintained in a cylindrical shape.
Accordingly, it is possible to prevent the spouting path from being bent near the spout 24 to close the liquid passage 29 and to prevent the liquid passage 29 from being narrowed. At the same time, since the spout 24 is easily maintained in a tubular shape, the liquid does not drip or spill out of the container. In addition, blowing and scattering of the liquid agent due to foaming or the like are prevented. In addition, it is possible to easily secure the liquid passage 29 at the time of liquid transfer by using a pouch 20 without processing such as providing a separate member from the film or forming a ridge.
Locking means 9 at the same time as film cutting necessary for forming
It is possible only by forming a liquid, preventing dripping, spilling, blowing, scattering, etc. of the liquid material at the time of liquid transfer,
In addition, the liquid containing pouch 20 capable of smoothly transferring the liquid can be provided at low cost.

Further, the locking projection 92 is formed with a small locking hole 91.
Locking projection 9 which does not need to be inserted into the
2 can be locked together by overlapping and folding, so that the cutting portion 2 is cut along the cutting guide line 25.
6 is cut from the pouch body 27, and in a state where the spout 24 is formed, it is easier to maintain the spout 24 as a cylindrical shape by the locking means 9 without dripping, spilling, blowing out or scattering of the contents. Become.

In this embodiment, as shown in FIG. 6, the directions of the arrows of the locking projections 92, 92 can be reversed with respect to the configuration shown in FIG.

It should be noted that the first type shown in FIGS.
In the fourth to fourth embodiments, the spout is formed at the center of the upper part of the pouch main body. However, as shown in FIG. 7, the spout may be formed at one side of the upper part of the pouch main body. It is also adaptable to what is formed, in which case also locking means can be provided on both sides of the spout, ie on the upper side of the pouch body and on the side of the pouch body where the spout is formed.

[0059]

According to the liquid containing pouch of the present invention, since the locking means is provided on both sides of the spout, the spout can be easily maintained in a cylindrical shape at the time of liquid transfer. Thus, it is possible to prevent the dispensing passage from being bent and closing the liquid passage, and preventing the liquid passage from being narrowed. In addition, since it is possible to easily secure the liquid passage at the time of liquid transfer without performing processing such as providing a separate member from the film or forming a ridge, at the time of liquid transfer, refill the pouch body by hand and refill. It is possible to provide a liquid storage pouch which can be easily provided, can prevent dripping, spilling, blowing, scattering and the like of the liquid agent, and can smoothly transfer the liquid, at a low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a liquid storage pouch according to the present invention.

FIG. 2 is a perspective view showing a liquid transfer state of the liquid storage pouch according to the first embodiment of the present invention.

FIG. 3 is a front view showing a second embodiment of the liquid containing pouch according to the present invention.

FIG. 4 is a front view showing a third embodiment of the liquid storage pouch according to the present invention.

FIG. 5 is a front view showing a fourth embodiment of a liquid storage pouch according to the present invention.

FIG. 6 is a front view showing another structure of the fourth embodiment of the liquid containing pouch according to the present invention.

FIG. 7 is a front view (a) and a perspective view (b) showing an example of a conventional pouch.

FIG. 8 is a front view (a) and a perspective view (b) showing an example of a conventional pouch.

FIG. 9 is a cross-sectional view showing an example of a conventional pouch spout.

[Explanation of symbols]

 9: Locking means 12, 22 ... Seal part 13 ... Outline line 14, 24 ... Spout port 15, 25 ... Scheduled opening part (cutting guide wire) 16, 26 ... Cut part 17, 27 ... Pouch body 18, 28 ... Notch 19, 29: closed circuit 10, 20: pouch (liquid containing pouch) 91: locking hole heat seal portion 92: locking convex portion 93: cut portion

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E064 AB25 EA01 EA23 EA30 FA04 FA05 HP01 HP02 HS05 HU10 3E067 AA03 AA04 AB99 BA12A BB14A CA24 EB02 EB07 EB25 EB40

Claims (1)

[Claims] 1. A pouch formed by stacking films and joining peripheral edges thereof so as to be able to store a liquid agent, and the pouch separates a pouch body and a cut portion into a seal formed by the joining. And a closed path extending from the liquid container of the pouch body to a position beyond the scheduled opening section, and the closed path is cut along the scheduled opening section to open the cut section. Forming a pouring path for the liquid agent with the position of the scheduled opening portion being a pouring port. Locking means for maintaining the open state of the pouring port are provided on both sides of the pouring port. Characterized in that at least one of the two is formed of a locking piece, and the width of the locking piece on the distal end side is set to be larger than the width on the base end side.