JP2741352B2 - Jig for forming liquid metering bag and liquid metering chamber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid injection capable of dispensing a fixed amount of liquid filled in a bag while maintaining a constant quality for a long time without outside air or bacteria entering the bag at the time of pouring. The present invention relates to a jig for forming a metering chamber of a bag discharging and liquid discharging device.

[0002]

2. Description of the Related Art Conventionally, as a raw material liquid supply means for a cup-type vending machine or a liquid dispenser which pours and provides a drink liquid into a cup, a low-acid drink liquid such as coffee, black tea and oolong tea which is easily contaminated by oxidation and bacteria. Or neutral drinks,
Bags with high gas barrier properties are provided aseptically filled at the factory in containers called bag-in-boxes built in cardboard boxes. This allows long-term storage at room temperature even for beverages that are susceptible to oxidative degradation, thereby reducing distribution costs.

[0003] However, conventional liquid dispensing devices such as cup-type vending machines and liquid dispensers have a tendency to decay or oxidatively degrade neutral drinks or the like because at least at the time of liquid dispensing, outside air directly enters the tank. Can only be stored for a short period of time. Therefore, even if it is aseptically filled at a factory, after it is transferred to the liquid injecting device, there is a problem that oxidation and deterioration progress and a constant quality cannot be maintained. In particular, coffee, black tea, oolong tea, etc., which oxidize as soon as they come in contact with air and deteriorate in quality, cannot always maintain high quality with conventional liquid dispensing equipment, It could not be applied to split offerings. Further, in the conventional liquid dispensing apparatus, since the liquid is supplied to the cup through the nozzle provided in the apparatus, the nozzle is easily contaminated, and there is a problem in hygiene.

As a means for solving the above problems, the present inventor has previously provided a bag with a fixed-volume dispensing section which can be attached to a fixed-volume liquid supply device and dispenses a fixed amount of liquid directly from the bag (Japanese Patent Laid-Open No. Hei 6-1994).
293348). The bag with a fixed quantity dispensing unit can dispense a fixed amount without contacting the liquid, and can surely prevent outside air from entering the liquid storage bag during the dispensing, enabling long-term small quantity dispensing of neutral beverage liquid It was what was done. However, the inlet portion formed between the liquid storage bag portion and the liquid discharging bag portion is narrow, so that it is easily twisted or bent, and mounting on the liquid discharging device is troublesome. In some cases, the front and back walls were in close contact with each other and could not be easily opened. In addition, the pressure of the liquid applied to the inlet differs depending on the amount of the internal solution in a state in which the liquid is supplied to the liquid injecting device, and the time required for the fixed amount to flow out to the fixed amount bag varies. Further, although the liquid has a different flowing state depending on its viscosity, the proposed one has a constant flow path width at the inlet, so the flow path width is adjusted to maintain the optimum flowing state depending on the type of the content liquid. I couldn't do that.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems by further improving the above-mentioned bag with a fixed-quantity dispensing part. Even in the case of a solution, it can be supplied while maintaining a constant quality for a long period of time. Furthermore, regardless of a change in the amount of the liquid in the liquid dispensing bag, the quantitative dispensing can be reliably performed well, and the dispensing bag can be reliably dispensed. Liquid injection bag and liquid for liquid injection device that are easy to handle, without any twisting of the part and close contact of the injection port, the flow path width of the injection port can be adjusted arbitrarily depending on the type of internal solution It is an object to provide a measuring chamber forming jig in a dispensing device.

[0006]

According to the present invention, there is provided a liquid dispensing bag comprising: a bag body comprising a front wall and a back wall formed of a flexible material having a high gas barrier property; An elongate spout formed by protruding the front wall and the back wall from the lower part of the part, and integrating the front wall and the back wall at a position closer to the lower part from the center of the bag body. To form a flow path dividing area for dividing a flow path to a lower portion of the bag main body.

[0007] By forming a pressure adjustment region in which the front wall and the back wall are welded to each other above the flow path division region, and forming an adjustment hole in the pressure adjustment region, a constant pressure is always applied to the fixed amount bag portion. It can be poured out and is desirable. Further, by forming an adhesion preventing portion for preventing the close contact between the front wall and the back wall in the vicinity of the central flow passage formed in the center of the flow passage division area or in the vicinity of the injection port, the central flow passage is reliably opened. Can be.

[0008] The flow passage section is formed of a welding portion having at least a pair of vertical streaks and a positioning hole forming welding portion.
Alternatively, it may be formed by only at least one pair of positioning hole forming welded portions having a positioning hole formed at the center. By forming a positioning hole in the flow channel section, it is desirable that the positioning hole can be accurately mounted on the liquid discharging device. Also, by forming a narrow pseudo welding portion in the upper part of the flow path division area, the inner solution filled in the storage bag part is filled in the flow path formation area and the fixed amount bag part until it is mounted on the liquid supply device. It can be kept from being injected.

The lower edge of the bag main body communicating with the outlet is formed with an arc-shaped rising edge slightly rising upward in an arc shape at the end of the downwardly sloped edge, and through the arc-shaped rising edge. It is preferable that the inner solution is formed so as to communicate with the inlet of the spout so that the inner solution can be better spouted.

[0010] The fixed volume forming jig of the liquid dispensing device of the present invention is a fixed volume forming jig of the liquid dispensing device to which a liquid dispensing bag is attached and the internal solution is discharged from the liquid dispensing bag in a fixed amount. Forming an inclined edge descending to the upper edge and an arc-shaped rising edge slightly rising upward in an arc shape at the end of the inclined edge, and forming a vertical edge forming an inlet through the arc-shaped rising edge. It is characterized by having done.

[0011]

In the state where the liquid is not attached to the liquid discharging device, the liquid is filled in a state of being spread in the storage bag portion of the bag main body, the flow path dividing area, and the whole of the fixed amount bag portion. Since the flow passage section is not easily twisted or bent at the stage, it is very easy to handle as compared with the conventional bag, and is easily mounted on the liquid discharging device. Then, when mounted on the liquid dispensing device, only the central channel is left in the channel dividing area, the side channels are completely shut off, and the storage bag portion and the quantitative bag portion communicate only via the central channel. State. In this state, by forming a fixed gap between the fixed plate and the liquid extruding plate provided in the liquid dispensing device, the liquid amount in the fixed amount bag portion is controlled, and a fixed amount of liquid can be stored. It is possible to dispense quantitatively.

Further, since the pressure adjusting region is formed, the liquid in the storage bag portion is divided into two at the position to reduce the pressure, and the pressure in the storage bag portion is always kept substantially constant with respect to a change in the liquid amount in the storage bag portion. The liquid can flow down to the inlet. Further, by forming an adjusting hole in the pressure adjusting region and engaging with the engaging projection of the dispensing device, the distance from the pressure adjusting region to the injection port can always be kept constant. As a result, a fixed amount of liquid is always poured into the fixed amount bag portion even when the storage bag portion is filled and the liquid remaining amount is reduced.

Further, since the adhesion preventing portion is formed at the center of the central flow path or near the inlet, even if the width of the injection port and the spout is narrow, they do not adhere to each other and open smoothly when the valve is opened. The liquid can be poured out reliably. further,
When the metering bag portion of the liquid pouring bag of the present invention is not used for measurement, all the flow paths in the flow path divided area are used. In this case, the pressure is also adjusted in the flow path division area in combination with the pressure adjustment area, and the injection pressure from the injection port can be kept substantially constant, so that the injection can be performed well.

In addition, at the time of dispensing a fixed amount, the width of the flow path of the inlet to the fixed amount bag section is not specified, and the width of the flow path can be adjusted in a state of being attached to the liquid dispensing apparatus. Accordingly, the flow path width of the inlet can be arbitrarily adjusted, and the liquid can always flow into the fixed amount bag section in an optimal state. As a result, quantitativeness can be more reliably ensured.

Further, by forming a narrow pseudo welding portion in the upper portion of the flow path dividing area, the internal solution filled in the storage bag can be formed in the flow path forming area and in the fixed amount until it is mounted on the liquid supply device. It can be prevented from flowing into the bag portion and can be easily peeled off at the time of use. In addition, the lower edge of the fixed amount bag portion is formed at the end of the inclined edge that is inclined downward to form an arc-shaped rising edge slightly rising upward in an arc shape,
Since it is formed in a shape that communicates with the inlet of the spout through the arc-shaped rising edge, a sudden pressure change at the time of injecting the inner solution is reduced, and the spout can always flow well without being bent. it can.

The fixed volume forming jig of the liquid dispensing device has an arc-shaped rising edge slightly rising upward in an arc shape at an end portion of an inclined edge whose upper edge is inclined downward, and the jig is injected through the arc-shaped rising edge. Because it was formed in a shape that communicated with the vertical edge forming the inlet, the injection port was not bent at the time of the liquid flowing down to the fixed amount bag portion, and was always well injected for the same reason as the lower edge shape of the bag body. Can be.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of an embodiment of the liquid pouring bag of the present invention. The liquid pouring bag 1 of the present embodiment is made of a material having a high gas barrier property and flexibility, for example, a peripheral portion of a front wall and a back wall formed of a multilayer film of polyethylene / adhesive layer / Eval / adhesive layer / polyethylene. 4 is heat sealed to form a bag body 2 in which a liquid is stored, and an elongate spout portion 3 formed by elongating the front wall and the back wall from the lower part of the bag body. And

At a position lower than the center of the bag body 2, there is formed a passage dividing area 5 for dividing a passage toward the lower part of the bag body into three passages. The flow path division area 5
Are provided with vertical streaks 7, 7 formed by integrally welding the front and back walls at predetermined intervals in parallel about the vertical center line, and the upper ends of the vertical streaks 7, 7 are provided. The upper horizontal stripes 8, 8 extending in the bag side edge direction from each other and the lower horizontal stripes 9, 9 extending in the bag side edge direction from the lower end are formed by integrally welding the front wall and the back wall. As a result, a central flow path 10 formed between the vertical streaks 7, 7 is formed at a position closer to the lower part from the center of the bag main body, and is formed between the tip of the upper horizontal streak on both sides and the side edge of the bag. Are formed, and a flow path divided area including a total of three flow paths is formed.

As described above, by providing the flow path division area at the center lower portion of the bag body, the fixed chamber is formed in the flow path division area in a state where the bag is mounted on the liquid discharging device as described later. By arranging the jigs so as to be in contact therewith, the storage bag portion 15 is formed above the flow path sectioning area 5 and the fixed amount bag portion 16 is formed below the flow path division region 5.

Further, in the liquid dispense bag of the present embodiment, a pressure adjusting area 13 is formed in the upper part of the central flow path 10 in which the front wall and the back wall are adhered in a circular shape. An adjustment hole 14 penetrating the wall and the back wall is formed to adjust the pressure of the liquid flowing into the central flow path. Further, two locking holes 17, 17 are formed in the upper peripheral portion 4 so that the upper portion of the bag body can be locked and supported. A positioning hole 18 is formed to penetrate the portion where the back wall and the back wall are welded, so that the flow path dividing area and the fixed amount bag portion can be accurately mounted on the liquid discharging device.

In addition, a filling port 19 with a closed lid made of a plastic material is integrally attached to the front wall of the storage bag section so that liquid can be filled through the filling port. Fill the liquid from the upper edge opening of the bag body,
If you heat seal the upper edge opening after filling,
The filling port need not always be provided.

Further, in this embodiment, the central flow path 10
Adhesion preventing portions 20, 20 are formed in two lines along the central portion of the front wall at the entrance portion. The anti-adhesion portion prevents the surfaces facing the front wall and the back wall from adhering to each other by making the surfaces facing each other have different surface properties. In the present embodiment, a press mark is applied only to the front wall. Changed the surface properties of the front wall. The means for changing the surface properties is not limited to a press mark, and various means such as roughening one or both surfaces can be adopted. Similarly, the spout 3 also
Press marks are formed on the front wall to prevent adhesion, so that the discharge valve is not located at a position where the discharge valve is located in a state of being mounted on a liquid supply device described later.

The liquid pouring bag 1 formed as described above is
In the unused state, the base end of the spout 3 is sandwiched by a detachable pin or the like from the outside as shown by a broken line 22, and the spout is closed so that the liquid does not flow into the spout. In this state, when the bag is filled with the liquid in the factory, the liquid spreads into the storage bag portion 15, the flow path dividing area 5, and the fixed amount bag portion 16 of the bag main body portion and is filled with a predetermined amount. At the same distribution stage, the flow passage section is not easily twisted or bent, and is very easy to handle as compared with conventional bags.

Then, the liquid dispensing bag filled with the liquid is inserted into engaging holes 17 and 1 on engaging protrusions provided on the liquid dispensing device.
7. By fitting the adjustment hole 14 and the positioning holes 18, 18, the positioning hole is positioned at a predetermined position and can be accurately mounted on the liquid dispensing apparatus. Further, as shown by the hatched phantom line in FIG. 2, the flow path section is left only in the central flow path 10 and the side flow paths are formed in the fixed volume forming jig 3
Pressing at 0 and 30 completely shuts off, and the storage bag portion 15 and the fixed amount bag portion 16 are in communication with each other only through the central flow path. In addition, the interval between the fixed quantity chamber forming jigs 30 is provided so as to be adjustable, and in the illustrated embodiment,
Although the metering chamber forming jigs 30, 30 are located laterally closer to the vertical streaks 7, 7, the width of the central flow path 10 can be adjusted by positioning them inside the vertical streaks. In the case of a low inner solution, the central channel can be made narrower than the state shown in the figure.

In this state, a liquid extruding plate 31 (shown in phantom lines in FIG. 2) provided in the liquid dispensing device is provided with a fixed plate provided so as to face the liquid extruding plate and sandwich the fixed amount bag. By moving so as to form a constant space between the fixed bag portion and the fixed bag portion, the liquid that has excessively entered the fixed bag portion is pushed out to the storage bag portion, and the fixed bag portion is fixed. The amount of liquid is stored, and the setting is completed.

Then, with the liquid discharging bag attached to the liquid discharging device, the inlet valve 3 is located at a position facing the central flow path 10.
2, an outlet valve 33 is located at a position opposite to the outlet port 3, and the inlet valve and the outlet valve are moved at right angles to the central flow path 10 or the outlet by an appropriate actuator. This opens and closes the central channel or the spout. As described above, when the setting of the liquid spouting bag is completed, the lower end of the spout portion is cut and removed, the spout is opened, and the preparation work for spouting is completed.

As described above, when the liquid dispensing bag 1 is set and the preparatory work is completed, a fixed amount of liquid is stored in the fixed amount bag portion. When the pressing of the spout is released by the spout 33, the spout opens and the flow of the liquid in the fixed amount bag section starts.

Thereafter, the liquid extruding plate 31 presses the fixed amount bag portion 16 with a time delay, so that the liquid in the fixed amount bag portion can be satisfactorily poured out without remaining in the bag. When the pouring is completed, first, the pouring outlet valve 33 advances, then the inlet valve 32 is retracted, and the liquid push-out plate 16 returns to the initial position where a predetermined gap is formed between the liquid push-out plate 16 and the fixed plate, As a result, the liquid flows from the storage bag section 15 to the central flow path 1.
Then, a predetermined amount of liquid flows into the fixed amount bag section 16 to prepare for the next pouring.

As described above, a fixed amount of liquid can be discharged from the liquid discharging bag 1 without making any contact with a machine or the like of the discharging device. Further, in the present embodiment, at the time of the above-mentioned pouring, since the pressure adjusting area is formed above the flow path dividing area, the liquid in the storage bag portion is divided into two at the position and the pressure of the liquid applied to the central flow path Is reduced, so that the liquid can always flow down to the fixed amount bag at a substantially constant pressure even if the amount of liquid in the storage bag changes. Further, since an adjustment hole is formed in the pressure adjustment area and the hole is maintained in engagement with the engagement projection of the dispensing device, the distance from the pressure adjustment area to the central flow path can be always kept constant. In addition, even if the remaining amount of liquid in the storage bag portion is reduced in combination with the pressure adjustment, the liquid can be properly poured. In addition, since the adhesion preventing portion is formed in the central flow passage portion and the spout portion, even if the width of the central flow passage and the spout portion is small, they do not adhere to each other. Can be poured out.

The following experiment was conducted in order to confirm the effects of the pressure adjustment area and the adjustment hole in the liquid pouring bag of the present invention.

As an embodiment of the present invention, a liquid dispensing bag for an internal volume of 3 liters was manufactured in the shape shown in FIG. 1, and as a comparative example, the same shape and the same shape without a pressure adjustment area and an adjustment hole were formed. A volume of liquid dispensing bag was made. Then, each is filled with 3 liters of water, and the target value is set to 30 liters each time.
g, attached to the liquid dispensing device so that the entire dispensing is completed in 100 times, and repeatedly dispensed 100 times,
The amount of each injection was measured. In addition, in both cases, the setting angle of the storage bag portion was set to 13 °, and the liquid injection device was mounted.

As a result, the results shown in the graph of FIG. 4 were obtained in the case of the present embodiment, and the results shown in the graph of FIG. 5 were obtained in the case of the comparative example. As is clear from the graph, in the case of this embodiment, the number of times of dispensing is 9
After 0 times, the dispensed amount tends to decrease slightly, but it is possible to dispense almost quantitatively up to the last 100 times,
I was able to pour without waste to the end. In the case of this example, the average filling amount was 29.542 g, and the standard deviation was 0.39.

On the other hand, in the case of the comparative example, there was almost no difference from the case of the present example up to about 90 times, but after 90 times, there was an extreme variation and it became impossible to dispense quantitatively. . Therefore, in the bag of the comparative example, the pouring must be completed about 90 times while leaving a large amount of the residual liquid in the bag, and there is a problem that the liquid is wasteful. The average filling amount in the case of the comparative example was 28.352 g, and the standard deviation was 3.82.
It can be seen that the variation is large.

From the above experimental results, it can be seen that the provision of the pressure regulation area and the regulation hole has a remarkable effect on the fixed quantity supply of the liquid, especially when the remaining amount of the liquid in the liquid discharge bag becomes small. confirmed.

FIG. 3 shows a second embodiment of the liquid pouring bag according to the present invention. The same portions as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. Liquid pouring bag 4 of the embodiment
In the case of 0, the lower part of the storage bag part 41 is formed in a tapered shape, and the flow path dividing area 42 and the fixed amount bag part 43 are formed at the lower end part. In the present embodiment, the flow path dividing region is formed by a pair of positioning hole forming welded portions 44, 44 in which the front wall and the back wall are simply welded in a circular shape.
And positioning holes 45, 45 in the center thereof.
Is formed. Therefore, in the present embodiment, a pair of positioning holes is welded and divided into three channels, and the central channel is
It is formed wider than both side flow paths, and when flowing out in a fixed amount, the range of adjustment of the flow path width by the jig for forming the fixed amount chamber of the pouring device is enlarged, so that various internal solutions can be handled.

Further, in the present embodiment, a pseudo welding portion 25 is formed below the storage bag portion by pseudo welding the front wall and the back wall in the width direction. The pseudo-welding section 25 is for preventing the internal solution filled in the storage bag section from flowing into the flow path forming area and the fixed quantity bag section until it is attached to the liquid supply device. It is not easily peeled off in the state, and is pseudo-welded so as to have a peeling strength enough to be peeled off by pressing the storage bag portion with a predetermined pressure when installed in the liquid supply device. As a result of the experiment, the peel strength of the pseudo-welded portion satisfying the above conditions was good in a range of 100 to 500 gf / 15 mm, and preferably in a range of 15 to 400 gf / 15 mm.

Further, in the liquid dispensing bag of this embodiment, the side edges are welded so that the inner lower edge of the fixed amount bag portion 43 becomes inclined edges 46, 46 which are inclined downward as shown in the figure. Arc-shaped rising edges 47, 47 slightly rising upward in an arc shape are formed at the terminal end portion, and the arc-shaped rising edges 47, 47 are connected to the inlet of the spout. The shape was found through repeated experiments on a means for allowing the spout 48 to flow well without sticking or bending. It was confirmed that the outlet flowed out most smoothly without sticking or bending. In particular, at the start of pouring, a phenomenon in which the outlet port is bent due to a sudden change in pressure may be observed, but such a phenomenon has been eliminated by forming the above shape.

For the same reason, in this embodiment, the upper edge shape of the fixed volume forming jig 50 which plays the role of forming the injection port to the fixed volume portion at the time of the fixed volume outflow is set to the lower edge of the fixed volume portion of the dispensing bag. It was formed in the same shape as. That is, the measuring chamber forming jig 50 of the present embodiment has a downward inclined edge 52 at the upper side and an arc-shaped rising edge 51 at the distal end, and the distal edge of the jig 50 defines the flow width of the central outflow path of the liquid discharging bag. The vertical edge 53 is defined. By forming the measuring chamber forming jig in this way, the liquid can be satisfactorily flowed down to the measuring chamber section. The fixed volume forming jig 50 is attached to a liquid dispensing device (not shown) so that the interval thereof can be adjusted and opened and closed.
The liquid dispensing bag is attached to the apparatus in the open state, and the interval is adjusted and set according to the viscosity of the dispensed liquid.

Although one embodiment of the liquid pouring bag of the present invention has been described above, the present invention is not limited to this embodiment, and various design changes can be made. For example, in the above embodiment, the shape of the bag body is rectangular, but may be other shapes. Further, in the embodiment shown in FIGS. 1 and 2, the pseudo welded portion is not formed, but a pseudo welded portion may be formed similarly to the present embodiment. Conversely, it is not always necessary to provide a pseudo weld in the second embodiment. Further, in each of the above embodiments, the pressure adjustment region is provided at the center near the center flow path portion, but a plurality of pressure adjustment regions may be formed at predetermined intervals in the width direction as necessary.

Further, in each of the above-mentioned embodiments, the liquid dispensing bag of the present invention is mounted on the liquid dispensing device and used for injecting a fixed amount of liquid into the dispensing bag and dispensing the fixed amount. The method is not limited to the method of use, and may be used for other liquid pouring devices that pour the liquid from the bag without contact. For example,
When the spout valve provided in the spout section is operated by a timer or manually to pour out an arbitrary amount of liquid, the three flow paths in the flow path divided area are installed in an open state, and the liquid is poured in that state. . At this time, the liquid pouring bag of the present invention is
With the provision of the two flow path division areas and the pressure adjustment area, the fluid pressure at the spout can be adjusted and the ejection pressure can be kept almost constant. Can be poured out.

Further, in the above-described embodiment, the fixed volume forming jig is applied to the flow passage section. However, the present invention is not limited to this. The metering chamber inflow path may be located below the central flow path. In this case, it is preferable that the adhesion preventing portion is formed so as to be located substantially in the fixed amount chamber inflow passage.

[0042]

According to the liquid dispensing bag of the present invention, even if the internal solution such as a neutral beverage is highly oxidatively degraded, it can be supplied while maintaining a constant quality for a long period. Since the flow path division area is formed, regardless of the change of the liquid content in the liquid pour bag, the pour can be reliably and reliably made from the full state to the end, and there is no twisting or bending of the fixed amount bag part, Easy to handle.

Further, since the pressure adjusting region is formed in the upper portion of the central flow passage portion, the liquid in the storage bag is divided into two parts at this position, and the pressure is reduced. The liquid can always flow down to the central flow path at a substantially constant pressure.

Further, by forming an adjusting hole in the pressure adjusting area and engaging with the engaging projection of the dispensing device, the distance from the pressure adjusting area to the central flow path can always be kept constant. A fixed amount of liquid can be poured into the fixed amount bag section.

Further, by forming the adhesion preventing portion in the central flow passage portion, even if the width of the central flow passage portion and the spout are narrow, they do not adhere to each other. Can be issued.

In addition, at the time of dispensing a fixed quantity, the width of the flow path at the inlet to the fixed quantity bag portion is not specified, and the width of the flow path can be adjusted in a state of being attached to the liquid dispensing apparatus. The flow path width of the inlet can be arbitrarily adjusted according to the viscosity and the like,
The liquid can always flow into the fixed amount bag section in an optimum state. As a result, quantitativeness can be more reliably ensured.

Further, by forming a narrow pseudo welding portion in the upper part of the flow path dividing area, the internal solution filled in the storage bag part can be formed in the flow path forming area and in a fixed amount until it is mounted on the liquid supply device. It can be prevented from flowing into the bag portion and can be easily peeled off at the time of use.

An arc-shaped rising edge slightly rising upward in an arc shape is formed at the end of the lower edge of the fixed amount bag portion at the end portion of the inclined edge which descends, and communicates with the inlet of the spout through the arc-shaped rising edge. Since the liquid is formed into a shape, the liquid can always flow well without bending the liquid outlet when the liquid is discharged.

Further, an arc-shaped rising edge slightly rising upward in an arc shape is formed at the end of the inclined edge which descends the upper edge of the fixed volume forming jig of the liquid discharging device, and passes through the arc-shaped rising edge. Since the injection port is formed in a shape that communicates with the vertical edge forming the inflow port, the injection port can always be satisfactorily injected without bending at the time of the liquid flowing down to the fixed amount bag section.

[Brief description of the drawings]

FIG. 1 is a front view of a liquid pouring bag according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which the liquid discharging bag is attached to a liquid metering device.

FIG. 3 is a front view of a liquid pouring bag according to a second embodiment of the present invention.

FIG. 4 is a diagram showing the relationship between the number of times of dispensing and the filling amount in the liquid dispensing bag of the present embodiment.

FIG. 5 is a diagram showing a relationship between the number of times of dispensing and a filling amount in a liquid dispensing bag of a comparative example.

[Explanation of symbols]

1,40 Liquid pouring bag 2 Bag main body 3,48 Spout port 5,42 Flow path division area 7,44 Vertical streak 10 Central flow path 11,12 Side flow path 13 Pressure adjustment area 14 Adjustment hole 15,41 Storage Bag section 16, 43 Fixed quantity bag section 17 Locking hole 18, 45 Positioning hole 20, 21, 2
1 'Adhesion prevention part 25 Pseudo welded part 47 Circular rising edge 50 Fixed chamber forming jig 52 Circular rising edge

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masuo Kitamura 1-3-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokan Kogyo Co., Ltd. (72) Inventor Tetsuo Fukuoka 1-3-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokan Kogyo (72) Inventor Kenji Ozawa 1-3-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokan Kogyo Co., Ltd. (56) References JP-A-6-293348 (JP, A) JP-A-6-127553 (JP) , A) JP-A-62-28349 (JP, A) JP-A-6-65268 (JP, U)

Claims (7)

(57) [Claims] 1. A bag body comprising a front wall and a back wall formed of a flexible material having a high gas barrier property, and the front and back walls are formed to protrude from a lower portion of the bag body in a slender manner. And the front wall and the back wall are integrally welded at a position closer to the lower part from the center of the bag main body to divide the flow path to the lower part of the bag main body. A flow path division area is formed , and the front wall and the back wall are in contact with each other above the flow path division area.
A pressure adjustment area with an adjustment hole in the center
Liquid wherein the have Note Debukuro. 2. A liquid Note of the channel divided region center formed central channel or inlet vicinity to claim 1, wherein the adhesion preventing part is formed to prevent adhesion of the front wall and back wall of the Departure. Wherein the channel segment region is, at least one pair of liquid Note Debukuro vertical stripe welded portion with claim 1 or 2, wherein is formed by the positioning holes formed welded unit having a. 4. The flow path dividing region is such that the front wall and the back wall are fused.
Claims: At least one pair of positioning hole forming welding portions having positioning holes formed at the center of the welding portion.
3. The liquid dispensing bag according to 1 or 2 . Wherein said flow path in the upper part of the classification zone to form a pseudo welded portion of the narrow claims 1-4 Liquid Note Debukuro according any. 6. An arc-shaped rising edge which slightly rises upward in an arc shape at an end of a lower edge of the bag body portion communicating with the spout portion at an end portion of the inclined edge which is inclined downward, and the arc-shaped rising edge is formed. The liquid pouring bag according to any one of claims 1 to 5 , wherein the liquid pouring bag is formed so as to communicate with an inlet portion of the spout via a through hole. 7. A fixed volume forming jig of a liquid discharging device to which a liquid discharging bag is attached and a fixed amount of an internal solution flows out from the liquid discharging bag, wherein the inclined edge is inclined downward to an upper edge and the inclined edge is inclined. Forming an arc-shaped rising edge slightly rising upward in an arc at an end portion of the liquid injection device, and forming a vertical edge forming an inlet through the arc-shaped rising edge. Jig.