JPH07309355A - Pouring out device for bag - Google Patents

Abstract

PURPOSE:To easily unseal a bag without spoiling the strength of the bag, and also, prevent a content from splashing when a content is poured out after the bag is unsealed. CONSTITUTION:At an appropriate location of a bag 1, a cylindrical shape pouring out tube 6 with bottom is integrally provided in such a manner that the bottom part 6a may protrude to the inside of the bag 1, and the protruding port 6b may be opened on the outside of the bag 1. The pouring out tube 6 is pulled out to the outside of the bag 1 under an inside-out condition by pulling out a string 9 which is provided on the pouring out tube 6. Then, a content is poured out by tearing open the pouring out tube, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag made of a soft synthetic resin sheet (or film) or paper alone, or a laminated sheet laminated with aluminum foil or the like,
The present invention relates to a bag dispensing device suitable for packaging liquid, semi-fluid, or powder.

[0002]

2. Description of the Related Art As a large container for packaging a liquid or a semi-fluid, a metal can such as an 18-liter can or a drum can is generally used, but these metal cans have an advantage that they can be stacked in a packaged state. There is a problem in that the manufacturing cost is high and the transportation cost is high because it is bulky, and further, the processing after use is troublesome.

Therefore, a large bag is manufactured from a thick and tough soft synthetic resin sheet, and a liquid or the like is packaged in the bag. The bag is made from such a thick and tough soft synthetic resin sheet. When manufactured, the bags can be stacked in multiple stages in a packaged state without impairing the advantages of the bags, which are low in manufacturing cost and transportation cost and easy to process after use.

[0004]

However, this type of bag is generally formed in a rectangular shape in a plan view and is opened by cutting off the corners thereof with a knife such as scissors, but it is thick and strong. There is a problem that it is difficult to open because it is made of a different material. Also, the corner of the bag is cut out and the contents are poured out from the cut-out, and since the contents are poured out directly from the bag, for example, when the contents in the bag are poured into a small-area inlet. There is also a problem that the contents may be scattered around and pollute the surroundings.

An object of the present invention is to make it possible to easily open the bag without lowering the strength of the bag and to make it possible to pour out the contents without scattering.

[0006]

In order to achieve this object, according to claim 1 of the present invention, "a bottomed bottom made of a flexible thin material is formed at an appropriate portion of a bag in which an article is enclosed. A tubular dispensing tube is integrally provided such that the bottom of the dispensing tube projects into the bag and the mouth opens outside the bag, and the bottom of the dispensing tube is attached to the bag. "A string is provided so that it can be pulled out."

Further, as a more preferable aspect, in claim 3, on the premise of claim 1 or 2, the pour-out cylinder is formed so as to be tearable and unsealed in a state of being pulled out of the bag. did. Similarly, in claim 4, as a preferable aspect, the cord body is formed in a band shape, and one end of the cord body is pulled to the bottom of the spout cylinder to pull the cord body toward the outside of the bag to form the bottom portion. It is configured to be joined so as to come out.

[0008]

According to the present invention, when the contents such as liquid are enclosed in the bag, the pouring cylinder is flatly crushed due to the pressure of the contents to the inner surface of the bag. It is in a pressed state, and the pressure of the contents of the bag does not act on the inside of the dispensing cylinder. Therefore, the strength of the bag does not decrease due to the provision of the spout tube, and if the bag is made of a tough material, the bags containing the articles can be stacked in multiple stages.

When the bottom of the spout cylinder is pulled out to the outside of the bag by pulling the cord body, the spout cylinder is pulled out to the outside of the bag in a state where the inside surface and the outside surface thereof are turned over and turned over. The contents can be poured from the pouring tube by opening the cutting tube by cutting or the like. In this case, when the spout barrel is pulled out of the bag, the surface of the spout barrel 1 that is in contact with the contents is on the inside, so that human hands and clothes are not contaminated with the contents. . Further, since the spout barrel does not affect the strength of the bag, it is not necessary to form the spout barrel with a tough material. In combination with the fact that it does not pollute, it can be opened easily.

Therefore, the present invention has an effect that the bag can be easily opened without impairing the decrease in strength of the bag. Further, since the contents are poured out from the pouring tube drawn out of the bag, the case where the area of the contents inlet is small, for example, when the contents are poured into a bottle, Also, by inserting the pouring tube into the pouring port, there is an effect that the contents can be smoothly poured out without scattering.

Further, since the spouting tube is inserted inside the bag in the packaged state, the spouting tube does not get in the way when the packaged state is accommodated in a cardboard box or the like. According to the configuration of claim 3, by pulling out the pouring tube to the outside of the bag in a state of being turned over, and then grasping the tear guide portion with a finger and tearing the pouring portion, pouring without using a cutting tool such as scissors. You can open the delivery cylinder with one touch. Further, according to the configuration of claim 4, the one-touch operation of pulling the string toward the outside of the bag can open the spout cylinder without using a knife such as scissors.

Therefore, according to the constitutions of claims 3 and 4, in addition to the effect of claim 1, there is an effect that it can be opened more easily.

[0013]

Embodiments of the present invention will now be described with reference to the drawings. 1 to 10 show a first embodiment, and a bag 1 in this embodiment is formed by a so-called side seal method using a thick and tough soft synthetic resin sheet as a material, and is formed in a rectangular shape in plan view. The sheet 2 and the back sheet 3 are heat-sealed on three sides (the portions joined by heat-sealing are indicated by reference numeral 4), and the remaining one side is not joined and the opening 5 for filling the article is formed. Is made.

At the bottom of the bag 1 in the overlapped portion of the front and back sheets 2 and 3, there is a bottomed cylinder 6 made of a thin soft synthetic resin sheet. By projecting the bag 6 into the bag 1 so that the mouth portion 6b opens outside the bag 1, and heat-sealing the outer surface of the pouring cylinder 6 to the front and back sheets 2 and 3 in this state, the pouring cylinder Join 6 to bag 1.

The spout 6 is manufactured by heat-sealing a front piece 7 and a back piece 8 made of a soft synthetic resin film. Inside the spout 6, a strip made of a soft synthetic resin is formed. The string 9 of is arranged. The string 9 is
The one end 9a is sandwiched between the bottom portion 6a of the spout cylinder 6 and is integrally joined to the front and back pieces 7 and 8 by heat sealing, while the other end 9a of the cord 9 is connected to the spout cylinder 6 Also, the bag 1 is exposed to the outside of the bag 1 by some size (see FIGS. 2 to 3).

The spout barrel 6 can be manufactured, for example, by the method shown in FIG. 4 or FIG. That is, in the method shown in FIG. 4, the first film material 11 which is the material of the front piece 7 and the second film material 12 which is the material of the back piece 8 are fed along the longitudinal direction while facing each other. While the 3rd film original fabric 13 which becomes the material of the cord body 9 is paid out simultaneously between both film original fabrics 11 and 12, first, the surface where the 1st and 2nd film original fabrics 11 and 12 oppose each other. Then, the printing ink 14 for preventing heat sealing is sequentially applied to the inner surface of the spout cylinder 6 at regular intervals.

Next, in a state where the third film original fabric 13 is projected from the tips of the first and second film original fabrics 11 and 12, the three film original fabrics 11, 12, and 13 are paired with a hot plate (not shown). (2) is pressed to form the spouting cylinder 6 and cut from each of the film original fabrics 11, 12, and 13. In addition, the method shown in FIG. 5 is similar to that of FIG. 4, and while the three film material sheets 11, 12, 13 are being fed out, a heat-sealing-preventing thin plate is provided between adjacent film material sheets 11, 12, 13. 15 is disposed, and the thin film 15 is sandwiched between the three film original fabrics 11, 12, and 13 and the film is integrally heat-sealed to manufacture the dispensing cylinder 6.

Then, as shown in FIG. 6, while the two sheet material rolls 16 and 17 which are the material of the bag 1 are delivered facing each other, the pouring tube 6 is placed between the sheet material rolls 16 and 17. The sheets are stacked on top of each other, and in that state
The bag 1 is manufactured by integrally heat-sealing the edge portion of and the mouth portion 6b of the pouring cylinder 6 and cutting as shown by the two-dot chain line 18.

When the spout cylinder 6 is manufactured by the manufacturing method shown in FIG. 5, when the spout cylinder 6 is heat-sealed to the sheet raw materials 16 and 17, the thin plate 15 is inserted into the spout cylinder 6. By doing so, it is possible to prevent the mouth portion 6b of the pouring tube 6 from being blocked. In order to wrap an article in the bag 1 manufactured in this way, for example, as shown in FIG. 7, both side edges are clamped by the clamp body 19 with the opening 5 facing upwards,
In that state, after filling the inside of the opening 5 with the contents, the opening 5 is sandwiched by a pair of heating plates 20 to perform heat sealing,
They are joined by the high frequency sealing method.

When packed in this way, the spout 6 is
Due to the pressure of the contents, the bag 1 comes into close contact with the inner surface of the bag 1 in a flatly crushed state as shown in FIG. 8, and the pressure does not act on the inside of the pouring tube 6, so that the strength of the bag 1 is improved. It never drops. Therefore, if the bag 1 is made of a soft synthetic resin sheet made of a tough material, the bags 1 filled with the contents can be stacked in multiple stages.

When the bag 1 filled with the contents is opened, as shown in FIG. 9, the cord 9 is pulled, and the pour-out tube 6 is turned over and pulled out to the outside of the bag 1. Therefore, the pouring tube 6 may be cut at an appropriate portion as shown by the alternate long and short dash line, and the contents may be poured out from the pouring tube 6 as shown in FIG. 10 (a). In this case, since the spout cylinder 6 is made of a thin soft synthetic resin film, the spout cylinder 6 can be easily opened, and the contents are put out of the bag 1.
As shown in FIG. 10B, for example, when pouring out into a pipe-shaped inlet 21,
Even when the contents for refilling are poured into the bottle 21 'as shown in 0 (c), the contents can be smoothly poured out without scattering.

The bag 1 and the spout 6 may be made of a soft synthetic resin tube, and the cord 9 may be in the form of a thread instead of the band. Further, if the string 9 is formed in a thick ribbon shape so as to maintain a certain degree of rigidity, the string 9 can be easily pulled out.
The conditions required for bag 1 are generally hygienic (tasteless, odorless, and nontoxic) and excellent in the function of protecting the contents (pressure resistance, impact resistance, heat resistance, cold resistance). Performance, no pinholes, toughness, etc.), excellent productivity / workability (easy to handle, smooth to some extent, stable dimensional accuracy, etc.), convenience (light weight) Yes, it is easy to seal and unseal, etc., it has commercial properties (good appearance, good printability, easy label attachment, etc.), economical (manufacturing cost, transportation)・ Low storage costs, etc.) and easy treatment as waste (e.g., easy incineration, easy recycling).

In the bag made of synthetic resin sheet (film),
In the past, the bottleneck was the point of opening, but since the convenience of the present invention can be secured, the range of application of the packaging bag can be significantly expanded. FIGS. 11 to 13 show a second embodiment corresponding to claim 3, and in this embodiment, when the spout cylinder 6 is composed of a front piece 7 and a back piece 8,
Both pieces 7 and 8 are folded back inward, the two pieces 7 and 8 are heat-sealed at the locations of the inward folding pieces 7a and 8a, and further, the inward folding pieces 7a and 8a serve as a tear guide portion. The V groove 22 is formed by cutting out.

With this structure, the cord 9 is pulled to pull out the pouring cylinder 6 from the bag 1 in the state where the pouring cylinder 6 is turned upside down, so that the inward folding pieces 7a and 8a and the V groove 22 are exposed to the outside. Therefore, the pouring tube 6 can be torn and cut by grasping the location of the V groove 22 without using a knife.
In this case, the tear guide portion is not limited to the V groove,
A simple cut may be made, and a plurality of V grooves 22 and cuts may be formed along the longitudinal direction of the spout tube 6.

Further, both front and back pieces 7, 8 constituting the pouring tube 6
, The molecular orientation is in the width direction (arrow direction) as shown in FIG.
When the film is uniaxially stretched so that the pouring tube 6 can be torn and cut without forming a tear guide portion such as a V groove. As shown in FIG. 14A, for example, as shown in FIG. 14A, the spouting cylinder 6 of FIGS. 11 to 13 has the V groove 22 formed as a notch while the film original fabrics 11 and 12 are fed out along the longitudinal direction thereof. , Both film originals 11,
Printing ink for heat seal prevention is applied to the opposite surfaces of 12 except for the portion corresponding to the bottom portion 6a of the spout cylinder 6, and then both side edges of both film raw sheets 11 and 12 are directed in opposite directions. It can be manufactured by folding back toward and heat sealing.

FIGS. 15 to 16 show a third embodiment corresponding to the fourth aspect. In this embodiment, the spout 6 is made of a soft synthetic resin tube, and the bottom 9a of the string 9 is sandwiched between the bottoms 6a of the spouts 6 by heat sealing. It is formed to have a wide width of about the same width, and the joining strength of the heat seal of the cord 9 to the bottom portion 6a of the spout cylinder 6 is set by pulling on the cord 9
Is set to such a strength that it can be separated from the pouring tube 6.

Therefore, in this embodiment, when the cord 9 is pulled toward the outside of the bag 1 with a certain amount of force as shown in FIG. The bottom portion 6a of the outlet cylinder 6 comes out and opens. In addition,
The string 9 does not necessarily have to be wide. In the third embodiment, a thin cord body 23 for binding and sealing is inserted into the spout barrel 6, and the middle portion of the cord body 23 along the longitudinal direction is heat-sealed or bonded to the spout barrel 6. It is joined by an appropriate means such as an agent, and when configured in this way, the dispensing cylinder 6 can be bound and sealed with the cord 23 after opening as shown in FIG. 16C, so that the contents are dispensed. It is convenient when you do.

As means for opening and sealing after opening, the spout cylinder 6 is made to have a certain length or more, and the spout cylinder 6 itself is connected and sealed as shown in FIG. It may be sealed with a closing tool. In the present invention, the place and number of the spouting cylinder 6 can be set arbitrarily. For example, as shown in FIG. 18 as a fourth embodiment, the spouting cylinder 6 is provided in the middle of the bottom of the bag 1 or the contents are packed. When the opening 5 is sealed by heat sealing from the opening 5
The spout cylinder 6 may be sandwiched between.

Further, the length dimension L and the width dimension W of the spout cylinder 6
Needless to say, can also be set arbitrarily.
If the width dimension W of the spout barrel 6 is wide and a finger can be inserted into the spout barrel 6, the string 9 may be inserted into the spout barrel 6. The mouth 6b of the spout 6 may be projected to the outside of the bag 1 to some extent. In this case, since the spout 6 is deformable, the bag 1 is accommodated in a cardboard box or the like. At this time, the spout 6 does not get in the way.

In the fifth embodiment shown in FIG. 19, the inside of the bag 1 is divided into two parts by a partition part 24 (it may be partitioned into three or more parts), and the contents on both sides of the partition part 24 are poured. It is provided with an outlet cylinder 6, and is suitable for packaging two kinds of articles which are transported in a separated state and mixed for use. FIG. 20 shows a sixth embodiment which is another example of mounting the spout barrel.

Of these, (a) shows that two pouring cylinders 6 are provided at one side edge of the bag 1. In this case, the contents may be discharged from both of the discharge cylinders 6, or the contents may be discharged from one of the discharge cylinders 6 and the other discharge cylinder 6 may be used as an air vent hole. Further, as shown in FIG. 20 (b), a pour tube 6 is provided on each of the one side and the other side of the bag 1, and the content is discharged from one pour tube 6 and the other pour tube 6 is discharged. It is designed to be used as an air vent hole.

As is apparent from the embodiment of FIG. 20,
The number and the mounting position of the spout cylinders 6 can be variously selected depending on the discharge function required for the bag 1. FIG. 21 shows a seventh embodiment which is another example of the form of the spout barrel 6.
Of these, (a) and (b) show that the spout cylinder 6 is appropriately protruded to the outside of the bag 1 by a size L1 and the ring body 25 for forming an orifice is integrally formed on the inner surface of the tip of the outward protruding portion. 3A is a diagram showing a state before opening, and FIG. 3B is a diagram showing a state after opening. When formed in this way, it is suitable for packaging of articles in which the contents need to be extruded in an elongated state, such as a cream packaging bag for decoration cake.

The spout cylinder 6 has an outwardly protruding dimension L.
Although the dimension L2 that has entered the bag 1 is shorter than that of 1, as shown by the alternate long and short dash line in (b), even if the part that has entered the bag 1 is exposed outward when opened. good. (C) to (e) show that a tapered orifice cylinder 26 is constantly provided at the tip of the outward protruding portion of the spout cylinder 6, and (c) shows a state before opening. , (D) is a diagram of the state after unsealing, and (e) is a ee view of (d).

(F) to (i) show that a partition member 27 having an appropriately shaped hole 27a is provided on the inner surface of the outward protruding portion of the pouring tube 6 to discharge the contents into a plurality of lines. It was done like this. (F) is a state before opening, (g) is a state after opening, (h) is an hh view of (f),
(I) is a figure which shows the partition member 27 in another shape.
(J) and (k) show the guide cylinder 2 made of a thick material.
8 is projected to the outside of the bag 1 and the pouring tube 6 is pulled out from the guide tube 28, which is convenient for pouring out.

Shown in (l) is a guide cylinder 28 formed in a tapered shape (funnel shape) with a tapered end.
In (m), the spout cylinder 6 is formed in a tapered shape with a tapered end. In the form of these (l) and (m),
It is convenient for discharging the contents into a container with a small diameter.
In the eighth embodiment shown in FIG. 22, when the bag 1 is made self-supporting by welding a pair of bottom plates 29 to a tube having a strong rigidity, the spout cylinder 6 is attached to the joint portion of the pair of bottom plates 29. It is a thing. In this case, the spout cylinder 6 may be sandwiched between the peripheral edge of the bottom plate 19 and the inner peripheral surface of the bag 1, as indicated by the dashed line in (b), or
As shown by the chain double-dashed line in (a), it may be attached in a state of being sandwiched between the contents filling ports.

Although the above embodiment was applied to a bag made of a soft synthetic resin sheet, the present invention can be applied to other bags such as cloth bags and paper bags for packing grains and powders. It can also be applied to a bag formed of an appropriate material.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a partially cutaway enlarged perspective view of a main part of FIG.

3A is a sectional view taken along line aa of FIG. 1, and FIG. 3B is FIG.
2 is a sectional view taken along line bb of FIG. 1, and FIG. 1C is a sectional view taken along line cc of FIG.

FIG. 4 is a diagram showing one manufacturing process of the spout barrel.

FIG. 5 is a view showing another manufacturing process of the spout barrel.

FIG. 6 is a diagram showing a manufacturing process of the bag.

FIG. 7 is a diagram showing an end point process of contents in a bag.

FIG. 8 is a view showing the inside of the bag in a packaged state.

FIG. 9 is a cross-sectional view showing a state in which the pouring tube is pulled out of the bag.

FIG. 10A is a perspective view showing a state of opening and pouring, FIG. 10B shows a state of pouring into a pipe-shaped inlet, and FIG. 10C shows a state of pouring into a bottle. It is a figure.

FIG. 11 is a cross-sectional view of a mounting portion of a pouring tube in the second embodiment.

FIG. 12 is a perspective view of a main part of the second embodiment.

FIG. 13 is a diagram showing a state in which a pouring barrel is pulled out in the second embodiment.

FIG. 14 is a diagram showing a manufacturing process of the pouring barrel in the second embodiment.

FIG. 15 is a perspective view of a main part of the third embodiment.

16A is a sectional view taken along line XVI-XVI of FIG. 15, FIG. 16B is a sectional view in an unsealed state, and FIG. 16C is a diagram in a state in which the spout cylinder is unsealed. .

FIG. 17 is a view showing a state in which the spout cylinder is tied after opening.

FIG. 18 is a plan view of the fourth embodiment.

FIG. 19 is a plan view of the fifth embodiment.

FIG. 20 is a plan view of the sixth embodiment.

FIG. 21 is a diagram of a seventh embodiment.

FIG. 22 is a diagram of an eighth embodiment.

[Explanation of symbols]

 1 bag 2 front sheet 3 back sheet 5 opening 6 spouting cylinder 6a bottom 6b mouth 7 front piece 8 back piece 9 string 22 V-groove that serves as a tear guide

[Procedure amendment]

[Submission date] September 2, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Change

[Correction content]

[Figure 10]

Claims (4)

[Claims] 1. A bottomed tubular pour-out tube formed of a flexible thin material is provided at an appropriate portion of a bag in which an article is enclosed, and the bottom of the pour-out tube is inside the bag. The bag is characterized in that the projecting mouth portion is integrally provided so as to open to the outside of the bag, and the pouring tube is provided with a string body so that the bottom of the pouring tube can be pulled out of the bag. Output device. 2. The bag according to claim 1, wherein the bag and the spout cylinder are separately formed by using a sheet made of a soft synthetic resin or the like as a material, and the spout cylinder is used as an appropriate joining means such as heat seal. A bag dispensing device characterized by being attached to a bag. 3. In "Claim 1" or "Claim 2",
A bag pour-out device, wherein the pour-out tube is formed so that it can be torn and opened while being pulled out of the bag. 4. In "claim 1" or "claim 2",
The cord body is formed in a band shape, and one end of the cord body is joined to the bottom portion of the spout cylinder so that the bottom portion comes out by pulling the cord body toward the outside of the bag. Bag dispensing device.