CN113260583B - flexible container - Google Patents

Abstract

A flexible container which contains a content and which is taken out by penetrating a bag breaking tool from the outside is provided with an outer bag and an inner bag. The outer bag has a bottom surface portion. An inner bag is received within the outer bag and is internally filled with the contents. The outer bag is provided with a marking part on the outer surface of the bottom surface part. The marking portion indicates a position where the bag-breaking tool penetrates.

Description

Flexible container

Technical Field

The present utility model relates to flexible containers.

Background

Flexible containers are commonly used for storing and transporting various contents of powders, grains, vegetables, and the like. There are various types of flexible containers, but there is one type of flexible container in which a filling port for contents is formed at an upper portion and a discharge port for contents is formed at a lower portion (refer to patent documents 1 to 3). This type of flexible container is suspended when opened and the contents are removed from the lower discharge outlet.

The flexible containers in patent documents 1 to 3 have a double-layer structure, and have an inner bag filled with contents and an outer bag accommodating the inner bag. The bottom surface of the outer bag is formed with a lower opening, and the lower opening is covered by a garter-shaped cover which is continuous with the edge defining the lower opening at the bottom surface except for the opening time. The garter-shaped cap is referred to as "lower outer cap" (16) in patent document 1, as "cap pressing pieces" (16 a to 16 d) in patent document 2, and as "chrysanthemum flower portion" (18) in patent document 3. The doughnut-shaped cover includes portions corresponding to the petals, and the portions are radially arranged so as to form a doughnut like in the same plane as the bottom surface portion by binding a rope passing through the center of the portions, thereby closing the lower opening. On the other hand, when the opening is performed, the rope is released, so that the part corresponding to the petals is sagged downward, and the lower opening is opened. Then, the contents are taken out through a discharge port portion corresponding to the lower portion of the inner bag pulled out from the lower opening.

Prior art literature

Patent literature

Patent document 1: japanese patent registration No. 3191096

Patent document 2: japanese patent application laid-open No. 2004-26202

Patent document 3: japanese patent laid-open publication 2016-33022

Disclosure of Invention

(problem to be solved by the utility model)

The following operations are required in the above flexible container: for example, when opening the bag, the rope for fixing the doughnut-shaped cover is released, the cover is opened, the outlet portion of the inner bag is pulled out, the heat-sealed portion at the front end of the outlet portion is cut off, and the rope for binding the outlet portion is released. However, such a bag opening operation is not necessarily easy for the operator, and is often a burden in terms of time. Therefore, a flexible container which is easy to handle and has good workability is desired.

The utility model aims to provide a flexible container capable of improving workability.

(means for solving the problems)

A flexible container according to an aspect of the present utility model is a flexible container for containing contents and taking out the contained contents by penetrating a bag-breaking tool from outside, the flexible container including: an outer bag having a bottom surface portion; and an inner bag which is accommodated in the outer bag and is filled with the content therein, wherein the outer bag has a marking part on the outer surface of the bottom surface part, and the marking part indicates a position where the bag breaking tool penetrates.

In the flexible container according to the above aspect, the marking portion may be a pattern displayed on an outer surface of the bottom surface portion.

In the flexible container according to the above aspect, the marking portion may be a notch hole formed by partially cutting away the bottom surface portion.

According to the above configuration, the bag-breaking tool does not contact the outer bag, and thus the burden imposed on the bag-breaking tool can be reduced. In addition, according to this configuration, the outer bag is less likely to be broken when the bag is opened. Therefore, the possibility of the foreign matter being mixed into the fragments of the outer bag in the content taken out from the flexible container can be suppressed. For the above reasons, workability of the work of handling the flexible container improves.

In the flexible container according to the above aspect, the flexible container may further include a sagging suppressing member configured to suppress sagging of the inner bag from the notch hole.

In the flexible container according to the above aspect, the sagging-suppressing means may include a covering member that covers at least a portion of the notch hole.

In the flexible container according to the above aspect, the cover member may include a sheet member provided between the bottom surface portion and the inner bag.

In the flexible container according to the above aspect, the outer bag and the inner bag may be at least partially fixed to each other.

In the flexible container according to the above aspect, the inner bag may be filled with water-absorbent resin particles as the content.

(effects of the utility model)

According to the present utility model, the bag-breaking tool is aligned with respect to the marking portion provided on the bottom surface portion of the flexible container and penetrates the marking portion, so that the flexible container can be broken easily and reliably, and therefore the time for opening the bag of the flexible container is shortened and workability is improved.

Drawings

Fig. 1 is a side view showing a state in which a flexible container according to an embodiment of the present utility model is unfolded.

Fig. 2 is a perspective view of the inner bag.

Fig. 3 is a top view of the flexible container.

Fig. 4 is a bottom view of the flexible container.

Fig. 5 is a view showing a state in which the flexible container is suspended from above by the suspension tool.

Fig. 6 is a view illustrating a bag opening operation of the flexible container.

Fig. 7A is a bottom view of a modification example.

Fig. 7B is a bottom view of another modification.

Fig. 7C is a bottom view of still another modification.

Fig. 8A is a perspective view of the inside of the outer bag according to the modification.

Fig. 8B is a cross-sectional view of the vicinity of the bottom surface of the outer bag according to another modification.

Fig. 8C is a bottom view of an outer bag according to another modification.

Fig. 9A is a cross-sectional view of a sheet member according to a modification.

Fig. 9B is a cross-sectional view of a sheet member according to another modification.

Fig. 10 is a cross-sectional view showing the structure of the outer bag in the vicinity of the lower end portion of the side surface portion.

Detailed Description

A flexible container according to an embodiment of the present utility model will be described below with reference to the accompanying drawings. Fig. 1 shows a side view of a flexible container (hereinafter, may be simply referred to as a container) 1 according to the present embodiment. Hereinafter, for convenience of explanation, the vertical direction in fig. 1 will be referred to as "up-down", and explanation will be made with this as a reference.

(1. Integral construction of flexible Container)

The flexible container 1 is a container for holding contents for storing and delivering the contents. As the name implies, the flexible container 1 is constructed of a soft material. Therefore, the container 1 expands three-dimensionally in a state filled with the content, but can be folded flat in an empty state.

The type of the content to be filled in the container 1 is not particularly limited, and is usually powder, grain, vegetable, or the like. These contents may be articles whose properties are easily affected by moisture in the air, and among them, water-absorbent resin particles are particularly preferred.

The flexible container 1 has a double-layered structure, and includes an outer bag 2 and an inner bag 3, and the inner bag 3 is accommodated in the outer bag 2. The contents are filled inside the inner bag 3. The outer bag 2 is mainly composed of a material using a high-strength cloth. The outer bag 2 has a main body 20 covering most of the inner bag 3, and the main body 20 has a top surface 21, a bottom surface 22, and side surfaces 23. In the present embodiment, the top surface portion 21 and the bottom surface portion 22 have a square shape. That is, the main body 20 of the outer bag 2 has a substantially rectangular parallelepiped shape, and the side surface portions 23 include four side surfaces having a rectangular shape. A pocket 23a formed of a transparent material into which a label or the like is inserted is attached to the side surface portion 23. An opening (hereinafter referred to as an upper opening) 21a is formed in the center of the top surface portion 21. The outer bag 2 has a marking portion 22a on the outer surface of the bottom surface portion 22 of the outer bag, and in the present embodiment, a notch hole is used as the marking portion 22a. Hereinafter, the notch hole is denoted by the same reference numeral as the mark, and is referred to as a notch hole 22a. The detailed configuration of the notch hole 22a will be described below.

The inner bag 3 is mainly made of a material such as a resin film, has a bottom surface portion 32 and a side surface portion 33, and has a substantially rectangular parallelepiped shape with an upper portion open. The upper portion of the inner bag 3 extends upward of the top surface portion 21 through the upper opening 21a, and forms a filling opening 31 for the content. The content is filled into the inner bag 3 through the filling port 31. That is, the filling port 31 forms a pouring path R1 for filling the inner bag 3 with the content.

The overall length of the inner bag 3 in the up-down direction is longer than the overall length of the outer bag 2 in the up-down direction. As shown in fig. 2, the bottom surface portion 32 of the inner bag 3 has a rectangular shape, and the extension end portions 32a extend from two opposite sides of the bottom surface portion 32 to the outside of the inner bag 3. The extension end portion 32a may be fixed by fixing means such as stitching while being sandwiched between the bottom surface portion 22 and the side surface portion 23 of the outer bag 2. That is, the outer bag 2 and the inner bag 3 may be fixed to each other at least at a part thereof. By fixing the outer bag 2 and the inner bag 3 (in particular, fixing the bottom surface portions 32 of the outer bag 2 and the inner bag 3 and/or the side surface portions 33 near the bottom surface portions 32), sagging of the inner bag 3 from the notch hole 22a is easily suppressed, and the bag breaking tool 90 is easily penetrated by appropriately tightening the bottom surface portions 32 of the inner bag 3 in a state where the contents are filled. Further, "the bottom surface portion 32 of the inner bag 3 protrudes below the bottom surface portion 22 of the outer bag 2 through the cutout hole 22 a" means that the bottom surface portion 32 of the inner bag 3 protrudes below the bottom surface portion 22 of the outer bag 2 when the container 1 is lifted up, "the sagging is suppressed" means that the sagging is not only completely prevented but also includes a degree of suppressing the bottom surface portion 32 of the inner bag 3 protruding below the bottom surface portion 22 of the outer bag 2 to a degree that does not affect the actual use of the flexible container 1.

Further, by fixing the extension end portion 32a of the inner bag 3 to the outer bag 2, the inner bag 3 is less likely to be broken, and the air tightness of the inner bag 3 can be further ensured. Therefore, the inner bag 3 may be preferably filled with a content (for example, water-absorbent resin particles) whose properties are easily affected by moisture in the air.

In the present embodiment, as shown in the cross-sectional view of fig. 10, the side surface portion 23 of the outer bag 2 is folded back inward, the bottom surface portion 22 of the outer bag 2 and the extension end portion 32a of the inner bag 3 are sandwiched together at the folded back portion, and these portions are sewn together at the positions shown by the chain lines, whereby the outer bag 2 and the inner bag 3 are fixed to each other. The end portion of the sheet member 50 described later may be disposed between the extension end portion 32a and the bottom surface portion 22, and may be fixed together with other portions. By sharing the fixing means (stitching in the present embodiment) of the outer bag 2, the inner bag 3, and the sheet member 50 in this way, the fixing portion is made stronger and less deformable, and the fixing portion of the sheet member 50 is made less breakable. Further, by covering the bottom surface portion 32 of the inner bag 3 with the sheet member 50, the bottom surface of the flexible container 1 after the contents are filled is kept smoother, and a bag breaking tool 90 described later is easily penetrated at a target position.

The outer bag 2 has a tubular filler cap 25 extending from the upper opening 21a to above the top surface portion 21. The filler cap 25 is a cap that covers the filler opening 31 protruding from the top surface portion 21 through the upper opening 21a from the outside. The filler cap 25 is secured to the top surface portion 21 by stitching or the like and is configured to stand up from near the edge defining the upper opening 21a. The cross-sectional shape of the filler cap 25 is a circle of approximately the same size as the upper opening 21a.

The opening area of the upper portion (filling port 31) of the inner bag 3 is larger than the opening area of the filling port cover 25. Thus, when the filling port portion 31 is contained in the outer bag 2, the filling port portion is creased and pressed. As described above, since the filling port portion 31 forms a filling port together with the filling port cover 25, the filling port portion 31 and the filling port cover 25 are sometimes referred to as a filling port P1 hereinafter.

(1-1. Composition near the filling port)

The structure in the vicinity of the filling port P1 is explained below. The filling port P1 is closed by a bag closing member that closes the throw-in path R1. As the bag closing member, for example, a tying tool 45 that ties the filling port P1 can be cited. In the present embodiment, as shown in fig. 1, the binding tool 45 is fixed to the outer surface of the filler cap 25. The binding tool 45 is a rope-like member. The binding tool 45 is attached by sewing or the like near the center of the filling port cover 25 in the up-down direction to extend in the horizontal direction in a state of not binding the filling port P1.

When closing the throw-in path R1, the filler neck 31 is first pressed together with the filler cap 25 covering the filler neck to close the throw-in path R1. Thereafter, the binding tool 45 is wound around the filling port P1 to maintain this pressed state. At this time, the binding tool 45 is bound by a method such as a bow tie. More specifically, it may be configured to: the filler cap 25 and the filler cap 31 are tied together into a knot, then the filler cap 31 protruding from the filler cap 25 is folded back to one side with the tip of the filler cap 31 facing downward, and the folded back portion of the filler cap 31 and the filler cap 25 are tied with a bow tie.

The outer bag 2 has a ring-shaped cover (hereinafter referred to as a ring cover) 24 for opening and closing the upper opening 21a. Fig. 3 is a plan view of the outer bag 2 in a state where the ring cover 24 is closed. The ring cover 24 includes a plurality of petal-shaped portions (hereinafter, referred to as petal portions) 24a. The petals 24a are radially arranged around the central axis A1 in the closed state of the ring cover 24, and cover the upper opening 21a except for a central portion of the upper opening. The petal sections 24a have the same shape as each other, each being substantially trapezoidal in shape, but the base being circular arc shape corresponding to the outline of the upper opening 21a. That is, the bottom edges of the petal sections 24a are continuous with the portions outside the edges defining the upper opening 21a at the top surface section 21.

The opening and closing member is provided on the wreath cover, and in this embodiment, the opening and closing member is constituted by a rope threading passage and a rope inserted into the rope threading passage. Specifically, a rope threading passage extending in the circumferential direction with respect to the center axis A1 is formed near the inner end of the petal portion 24a, and the rope 24b is inserted into these passages. Both ends of the rope 24b not inserted into the rope threading passage are wound by the sliding body 24 c. Then, the slider 24c moves along the bundle of the two ropes 24b, and the ring cover 24 is opened and closed. Specifically, when the slider 24c is moved to make the loop formed by the rope 24b small, that is, when the rope 24b is bound, the petal sections 24a are tilted to be spread out in the same plane as the top surface section 21, and the closed state shown in fig. 3 is brought. On the other hand, when the slider 24c is moved so that the loop formed by the rope 24b becomes large, that is, when the rope 24b is released, the petal portion 24a can be erected straight in the up-down direction as shown in fig. 1.

As shown in fig. 1, the filler cap 25 is disposed inside the ring cap 24. That is, the garter cover 24 is fixed to the top surface portion 21 so as to surround the filler cap 25 from the outside. The inner lid 4 is disposed outside the filler cap 25 and inside the garter cap 24. The inner lid 4 is also surrounded from the outside by a garter cover 24. The filling port P1 bound by the binding tool 45 is properly folded and accommodated inside the wreath cover 24, and then the wreath cover 24 is closed. At this time, the inner lid 4 covers the filling port P1 from the upper side inside the ring cover 24. Further, the ring cover 24 does not have to be completely closed as shown in fig. 3. That is, the filling port P1 may be partially protruded from the opening 24d formed in the center portion of the garter cover 24.

(1-2. Composition near the bottom surface)

Next, the structure of the container 1 near the bottom surface will be described. The bottom surface of the container 1 is configured such that when the container 1 is opened, a bag breaking tool 90 disposed below the container 1 penetrates the bottom surface of the container 1. Fig. 4 shows a bottom view of the container 1 according to the present embodiment. The outer bag 2 has a marking portion 22a on the outer surface of the bottom surface portion 22. The mark 22a indicates a position where the bag-breaking tool 90 penetrates. Therefore, the identification portion 22a is formed so as to be distinguishable from other portions of the outer surface of the bottom surface portion 22. In the present embodiment, the mark 22a is an opening (notch hole) formed by cutting the central portion of the bottom surface 22. In the present embodiment, the notch hole 22a is circular. Although the upper opening 21a and the notch hole 22a are not originally shown in the side view of fig. 1, the positions of both are shaded for reference. The main body 20, the top surface 21, the bottom surface 22, the upper opening 21a, and the notch hole 22a are coaxially arranged, and their common central axis is denoted by reference numeral A1 hereinafter.

The container 1 of the present embodiment includes a sagging suppressing member for preventing the inner bag 3 filled with the contents from sagging from the notch hole 22a to damage the inner bag 3. The sagging-suppressing member may include, for example, a covering member that covers at least a portion of the notch hole 22a. The portions where the covering members are provided are the outer surface and the inner surface of the bottom surface portion 22 of the outer bag 2, the outer surface and the inner surface of the side surface portion 23, the outer surface of the inner bag 3, and between the outer bag 2 and the inner bag 3, and the like, and may be appropriately selected according to the embodiment. In the present embodiment, the sheet member 50 is used as the covering member (sagging suppressing means). Specifically, the container 1 according to the present embodiment further includes a sheet member 50 that is provided between the bottom surface portion 22 of the outer bag 2 and the bottom surface portion 32 of the inner bag 3 and covers the notch hole 22a. In the present embodiment, the sheet member 50 has a rectangular shape smaller than the bottom surface portion 22 by one turn, and covers the entire notch hole 22a from the inside of the outer bag 2. That is, in fig. 4, the sheet member 50 is not the inner bag 3 but exposed from the notch hole 22a. In this way, since the notch hole 22a is covered with the sheet member 50, the inner bag 3 does not protrude from the notch hole 22a and is hard to sag. Further, although the sagging can be reduced by fixing the outer bag 2 and the inner bag 3 around the bottom surface portion 32 as described above, the inner bag 3 is required to be soft, and therefore, has a limited thickness, and is easily stretched, and it is difficult to sufficiently suppress sagging only by this method. Therefore, even if the outer bag 2 and the inner bag 3 are fixed, it is preferable to provide a sagging-suppressing means such as the sheet member 50.

In view of facilitating the alignment of the bag-breaking tool 90, the area of the notch hole 22a is preferably 5% or more, 10% or more, or 15% or more of the area of the bottom surface portion 22 of the outer bag 2 (including the area of the notch hole 22 a). The area of the notch hole 22a is preferably 30% or less, 25% or less, or 20% or less of the area of the bottom surface portion 22 of the outer bag 2 (including the area of the notch hole 22 a), so that sagging of the inner bag 3 can be easily suppressed.

The sheet member 50 can not only suppress sagging of the inner bag 3 from the cutout hole 22a due to the mass of the content at the time of transportation and suspension of the container 1, but also prevent the inner bag 3 from being exposed from the cutout hole 22a. The sheet member 50 is preferably made of a material having flexibility which does not interfere with the flexibility of the outer bag 2 and which does not deform significantly compared with the inner bag 3. In addition, at the time of opening the bag of the container 1, the sheet member 50 is cut by the bag breaking tool 90 together with the inner bag 3. Accordingly, the sheet member 50 is formed of a material that can be cut by the bag-breaking tool 90.

The material constituting the sheet member 50 may be appropriately changed depending on the content of the container 1 and the selected inner bag 3, but it is preferable to use a material which can be easily cut by the bag-breaking tool 90 and which has a certain degree of impermeable properties that the physical properties of the content do not change in the case where the content is water absorbent resin particles or the like. As such a material, a synthetic resin, specifically, a polyolefin resin such as polyethylene, polypropylene, cycloolefin, a copolymer including polyethylene, and the like can be cited; polyester resins such as polyethylene terephthalate and polylactic acid; a polyamide resin; polystyrene resin, and the like. The material of the sheet member 50 is preferably a polyolefin resin, more preferably polyethylene or polypropylene. When the sheet member 50 is made of a material that is easily torn, there is a possibility that a large hole is accidentally formed in the sheet member 50 due to damage from the outside, and as a result, the inner bag 3 exposed from the hole is ruptured, but if the sheet member 50 is made of polyethylene or polypropylene (particularly polyethylene), even if small damage occurs in the sheet member 50, the large hole is not caused, and the rupture of the inner bag 3 can be prevented.

Further, the thickness of the sheet member 50 may be appropriately selected according to the content of the container 1. When the content is water-absorbent resin particles, the thickness of the sheet member 50 is preferably in the following range: can be easily cut by the bag-breaking tool 90, can sufficiently suppress sagging of the inner bag 3, and can ensure a certain degree of leakage-preventing property that the physical properties of the water-absorbent resin particles do not change. In view of these, the lower limit value of the specific thickness of the sheet member 50 is, for example, 50 μm, preferably 80 μm, more preferably 100 μm, particularly preferably 120 μm, and the upper limit value of the thickness is, for example, 500 μm, preferably 300 μm, more preferably 200 μm.

(1-3. Other constitutions)

The container 1 further includes a plurality of hooked members 35b fixed to the outer bag 2. The hooked member 35b is a member for hooking to the suspending tool 7, and the suspending tool 7 suspends the flexible container 1 from above. The hooked member 35b corresponds to an upper portion of a rope-like member (hereinafter referred to as a frame rope) 35 disposed near the widthwise center of the side surface portion 23 of the outer bag 2. More specifically, as shown in fig. 1, the end portions 35a of the two frame strings 35 are overlapped with each other and fixed by sewing or the like at the upper portion of the pocket 23a near the widthwise center of the side surface portion 23. The upper portion of one frame cord 35 spans four corners of the top surface portion 21, and the end portions 35a are fixed to the adjacent side surface portions 23 (see fig. 3). Therefore, the upper portion of the frame cord 35 is formed to maintain a loop shape and becomes the hooked piece 35b.

Fig. 5 shows a state of the container 1 suspended from above by hooking the hooked member 35b to the suspending tool 7. As shown in fig. 5, for example, the hooked members 35b are hooked to the four hanging tools 7 set down from above, respectively, so that the flexible container 1 can be hung from above. Further, the suspension means 7 is typically a hook.

(2. Method of Using Flexible Container)

Next, a method of using the flexible container 1 will be described. Hereinafter, a method of filling the empty flexible container 1 with the contents and a method of opening the flexible container 1 will be described in order.

(2-1. Method of filling Flexible Container)

First, the outer bag 2, the inner bag 3, and the sheet member 50 are prepared. The sheet member 50 is accommodated in the outer bag 2 so as to follow the bottom surface portion 22, and the notch hole 22a is covered from the inside. Next, the inner bag 3 is accommodated in the outer bag 2. The inner bag 3 is accommodated such that the bottom surface 32 is along the upper surface of the sheet member 50 and the side surface 33 is along the inner surface of the side surface 23. Further, the filling port 31 in the upper portion of the inner bag 3 is inserted into the upper opening 21a of the top surface portion 21 of the outer bag 2 and the filling port cover 25, and pulled out so as to be slightly exposed from the upper end of the filling port cover 25. Thus, the filling port P1 is formed by the filling port portion 31 protruding upward from the top surface portion 21 through the upper opening 21a and the filling port cover 25.

Then, as described above, the prepared empty flexible container 1 is filled with the content. First, the empty flexible container 1 is placed under a device such as a hopper for supplying contents (hereinafter referred to as a "supply device") in a posture in which the top surface portion 21 is directed upward. Next, the hooked members 35b of the outer bag 2 are hooked to a suspending tool such as a hook of the feeding device, respectively, and the flexible container 1 is suspended from above. Then, the slider 24c is released, the garter cap 24 is opened, and the inner cap 4 is also opened, and the filling port P1 is opened as much as possible into a cylindrical shape. Next, the discharge port of the supply device is inserted into the insertion path R1. At this time, the filling port P1 may be fixed to the supply device with a jig or the like so as to cover the discharge port of the supply device. Thus, the throw-in path R1 is opened upward, that is, toward the discharge port of the supply device from which the content is discharged. Then, the content is introduced from the supply device into the inner bag 3 through the introduction path R1 by opening the discharge port of the supply device.

After filling the content, the filling port P1 is closed. Specifically, the filling port P1 is contracted to close the insertion path R1 formed inside the filling port 31. Then, the binding tool 45 is firmly wound around the filling port in such a manner as to surround the elongated filling port P1 from the outside, and thereafter, the binding tool 45 is bound to lock the wound state. Next, the filling port P1 is folded, the inner cap 4 is placed on the filling port, and then the garter cap 24 is closed. Thereby, the upper opening 21a is closed, and the filling port P1 is accommodated inside the garter cover 24. Through the above operations, the flexible container 1 containing the contents is manufactured.

The flexible container containing the contents is stored at an appropriate storage location and transported as needed. When the flexible container 1 is moved, the flexible container may be placed on a tray and carried by a carrying device such as a forklift. Further, a conveyor such as a crane having a hanging tool such as a hook may be used. That is, by driving the conveyor in a state in which the hooked member 35b is hooked to the suspending tool of the conveyor, the flexible container 1 can be easily moved.

(2-2. Bag opening method of Flexible Container)

Next, a bag opening method of the flexible container 1 containing the content will be described with reference to an example shown in fig. 6. First, the flexible container 1 containing the content is placed above a device such as a hopper to which the content is supplied (hereinafter referred to as a supplied device 91) in a state where the bottom surface 22 is directed downward. The method of disposing the container 1 is not particularly limited. For example, the container 1 may be lifted up in a state where the hooked members 35b of the container 1 are hooked to the four movable hanging tools 7a set down from above, and then the hanging tools 7a may be moved to place the container 1 above the supplied device 91. In the example shown in fig. 6, the suspension tool 7a is movable in the vertical direction, the left-right direction, and the paper surface direction of fig. 6.

A bag breaking tool 90 is fixed above the central portion of the supplied device 91 shown in fig. 6. The bag breaking tool 90 is typically a blade and is fixed with the cutting edge facing upward. The bag breaking tool 90 is configured to be capable of penetrating the label portion of the outer bag 2 and the bottom surface portion 32 of the inner bag 3 together. In the present embodiment, the bag breaking tool 90 is configured to penetrate the sheet member 50 and the bottom surface portion 32 of the inner bag 3 together. Therefore, the container 1 is positioned such that the edge of the bag-breaking tool 90 is positioned inside the circular peripheral edge of the bottom surface portion 22 of the outer bag 2 defining the notch hole 22a (the position of the notch hole 22a is shown by hatching in fig. 6 for reference). In other words, the container 1 is aligned such that the bag-breaking tool 90 penetrates the portion of the sheet member 50 exposed from the notch hole 22a. The container 1 may be aligned by, for example, visual observation by an operator while confirming the position of the cutout hole 22a as the marker. Further, the present utility model may be executed while confirming an image captured by a camera provided near the bag-breaking tool 90 by a remote monitor.

Then, all the hanging tools 7a are moved downward in fig. 6, and the bottom surface 32 of the inner bag 3 of the container 1 is positioned below the edge of the bag breaking tool 90. At this time, the edge of the bag breaking tool 90 penetrates the sheet member 50 exposed from the notch hole 22a and the bottom surface 32 of the inner bag 3. Accordingly, the content filled in the inner bag 3 is discharged to the supplied device 91 through the outer periphery of the bag breaking tool 90.

(3. Modification)

Although the above description has been given of one embodiment of the present utility model, the present utility model is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present utility model. The following modifications may be appropriately combined.

(3-1)

In the above embodiment, the main body 20 of the outer bag 2 and the inner bag 3 have a substantially rectangular parallelepiped shape, but the present utility model is not limited thereto, and may be cylindrical, for example.

(3-2)

The manner of the identification portion 22a is not limited to the notched hole. For example, as shown in fig. 7A, a pattern displayed on the outer surface of the bottom surface portion 22 may be employed. The method of forming the pattern may be appropriately selected according to the embodiment. For example, the pattern may be formed by drawing the bottom surface 22 with ink or the like, or by changing the knitting method of the material such as the cloth constituting the outer bag 2 in a part of the bottom surface 22.

(3-3)

The configuration of the notch hole 22a is not limited to the above-described configuration (one through hole). For example, as shown in fig. 7B, a configuration may be adopted in which two substantially semicircular through holes are formed in the bottom surface portion 22. In such a configuration, the band portion 22d that defines two through holes (defines a boundary) can function as a sagging-suppressing member that suppresses sagging of the inner bag 3 from the notch hole 22a. The band portion 22d may be a part of the bottom surface portion 22 remaining when two through holes are made (in this case, the material of the band portion 22d is necessarily the same as that of the bottom surface portion 22), or may be covered by installing a band member separate from the outer bag 2 after one through hole is formed (in this case, the material of the band portion 22d may be the same as or different from that of the bottom surface portion 22).

(3-4)

The sagging-suppressing means for suppressing sagging of the inner bag 3 from the notch hole 22a is not limited to the above-described sheet-like member 50, and may be appropriately selected according to the embodiment. For example, as shown in fig. 7C, the container 1 may be provided with a string-like member 51 covering a part of the cutout hole 22a as a covering member. The string-like member 51 may be fixed to the side surface portion 23 of the outer bag 2 along the outer surface of the bottom surface portion 22 by a fixing means such as stitching. With this structure, the strength of the bottom surface portion 22 can be improved. In addition, the periphery of the notch hole 22a may be fixed by a fixing means such as stitching. According to this configuration, even if the string-like member 51 is cut by the bag-breaking tool 90, the pieces of the string-like member 51 can be prevented from being separated from the bottom surface portion 22 and mixed into the extracted content. The above configuration is merely an example, and the material and the number of the string-like members 51, the fixing means, the fixing position, and the like may be appropriately selected.

Fig. 8A shows an example of the sagging suppression means. Fig. 8A shows a state in which the inner surface of the bottom surface 22 of the outer bag 2 is seen through. In the example shown in fig. 8A, an annular convex portion 22b protruding toward the bottom surface 32 of the inner bag 3 is formed on the inner surface of the bottom surface portion 22 along the peripheral edge defined by the notch hole 22a. The convex portion 22b resists the force of the contents filled in the inner bag 3 entering the notch hole 22a together with the inner bag 3. The convex portion 22b may be formed integrally with the bottom surface portion 22 of the outer bag 2, or may be formed separately from the outer bag 2 and then fixed to the bottom surface portion 22. Further, the convex portion 22b is not necessarily formed so as to surround the entire periphery of the notch hole 22a. That is, the convex portion 22b may be formed along the peripheral portion of the notch hole 22a.

Further, fig. 8B and C show an example of the sagging suppression member. Fig. 8B is a cross-sectional view of the bottom surface 22 of the outer bag 2, and fig. 8C is a bottom view of the outer bag 2. In the example shown in fig. 8B and C, a plurality of receiving portions 22C are formed on the outer surface of the bottom surface portion 22 along the peripheral edge defining the notch hole 22a. When a part of the inner bag 3 is hung from the notch hole 22a, the receiving portion 22c functions to receive the inner bag 3. The receiving portion 22c may be formed integrally with the bottom surface portion 22 of the outer bag 2, or may be formed separately from the outer bag 2 and then fixed to the bottom surface portion 22. The receiving portion 22c is not necessarily formed so as to surround the entire periphery of the notch hole 22a. That is, the receiving portion 22c may be formed along the peripheral portion of the notch hole 22a.

(3-5)

In the above embodiment, the container 1 is provided with the sheet member 50. However, the sheet member 50 may be omitted as appropriate according to various embodiments.

(3-6)

The sheet member 50 may be fixed to either one of the outer bag 2 and the inner bag 3, or at least partially fixed with respect to both the outer bag 2 and the inner bag 3. With this configuration, the sheet member 50 can be prevented from being displaced or biased in one direction by displacement in the outer bag 2. In the case where the sheet member 50 is fixed to both the outer bag 2 and the inner bag 3 at the same time, for example, the sheet member 50 may be fixed by fixing means such as stitching after the end portions thereof are arranged as shown in fig. 10 as described above.

(3-7)

The configuration of the sheet member 50 is not limited to the above. For example, the shape of the sheet member 50 is not limited to a rectangular shape, but may be appropriately selected, such as a circle, a cross, or the like. The sheet member 50 may have an uneven surface 50a on which the unevenness is formed. By providing the sheet member 50 such that the concave-convex surface 50a faces the bottom surface 32 of the inner bag 3, friction is generated between the inner bag 3 and the sheet member 50, and the inner bag 3 can be prevented from moving or being biased in one direction within the outer bag 2. For example, as shown in fig. 9A and 9B, the cross-sectional shape of the irregularities may be appropriately selected.

(3-8)

In the above embodiment, when opening the bag of the container 1, the label portion (the notch hole 22 a) of the container 1 is aligned with the edge of the bag-breaking tool 90, and the bag-breaking tool 90 is inserted into the container 1 so that the bottom surface portion 32 of the inner bag 3 is positioned below the edge of the bag-breaking tool 90. However, the bag opening method of the container 1 is not limited thereto. For example, the container 1 may be placed above the supplied device 91, and the edge of the bag breaking tool 90 may be aligned with respect to the marking portion of the container 1. Further, the bag-breaking tool 90 may be moved upward with respect to the container 1, and the bag-breaking tool 90 may be inserted into the container 1 so that the edge of the bag-breaking tool 90 is positioned above the bottom surface portion 32 of the inner bag 3.

(3-9)

The fixing means of the outer bag 2 and the inner bag 3 are not limited to the above means, and may be appropriately selected according to the embodiment. For example, as another mode of sewing, the corner portion of the side surface of the inner bag 3 may be sewn between the side surface portion 23 of the inner bag 3 and the sewing thread of the side surface portion 23 to fix. In addition, other fixing means than stitching may be employed. For example, by mounting a male member of a buckle on one of the outer bag 2 and the inner bag 3 and a female member on the other, both are fixed by the buckle. Furthermore, both can be fixed by means of hook and loop fasteners. In other words, the fixing means may be a clasp, a hook and loop clasp, or the like.

The container 1 of the present utility model is not limited to the above-described embodiments and modifications, and may be appropriately designed and modified by combining the components of the embodiments within the scope of the present utility model.

For example, as the sagging-suppressing means, the sheet-like member 50 and at least one selected from the string-like member 51, the annular convex portion 22b and the receiving portion 22c shown in (3-4) may be used in combination. Further, two through holes of a substantially semicircular shape shown in fig. 7B may be employed as the identification portion 22a, and at least one selected from the string-like member 51, the annular convex portion 22B, and the receiving portion 22c shown in (3-4) of the sheet-like member 50 may be employed as the sagging-suppressing means.

(description of the reference numerals)

1. Flexible container

2. Outer bag

3. Inner bag

21. Top surface portion

21a upper opening

22. Bottom surface portion

22a notch hole

25. Filler cap

31. Filling opening

32. Bottom surface portion

35b hooked member

45. Binding tool

50. Sheet-like member

90. Bag breaking tool

R1 drops into the path.

Claims (3)

1. A flexible container, comprising:

an outer bag having a bottom surface portion; and

an inner bag accommodated in the outer bag and filled with contents therein,

the flexible container is configured to remove the filled contents by passing a bag-breaking tool through the inner bag from the outside,

the outer bag is provided with a marking part on the outer surface of the bottom surface part,

the identification part represents a position for the bag breaking tool to penetrate,

the mark part is a notch hole formed by partially cutting off the bottom surface part,

the flexible container further includes a sagging-suppressing member configured to suppress sagging of the inner bag from the notch hole,

the sagging suppressing means includes a sheet member disposed between the bottom surface portion and the inner bag and covering at least a portion of the notch hole,

the sheet member has an uneven surface formed with an uneven surface facing the inner bag.

2. The flexible container of claim 1 wherein,

the outer bag and the inner bag are at least partially secured to each other.

3. The flexible container according to claim 1 or 2, wherein,

the inner bag is filled with water-absorbent resin particles as the content.