JP6951759B2 - Composite pack for filling liquids - Google Patents

Description

The present invention is for filling a liquid material formed by storing and holding an interior body made of paper or the like by filling and packaging a liquid or viscous liquid material in a packaging bag made of a plastic film or the like. Regarding composite packs, in particular, non-self-supporting interiors filled with liquids such as beverages, pharmaceuticals, and chemicals can be stably held, and the capacity efficiency of liquids can be improved and display space can be displayed. We propose a composite pack for filling liquids that can make effective use of.

An interior body in which a liquid substance is filled in a packaging bag used for the composite pack for filling a liquid substance, that is, a liquid substance-filled package is disclosed in Patent Documents 1 and 2 according to the proposals of the inventors. There is something. The packaging bag used for this liquid-filled package is made of a soft laminated plastic film, and the liquid-filled package itself has neither self-supporting nor stylistic properties. Therefore, it should be transported, stored, used, etc. , An exterior body consisting of a self-standing packaging bag or container, that is, stored in an outer container and used as a composite pack.

In addition, although different from the above-mentioned composite pack, containers such as Patent Document 3 and Patent Document 4 are known as liquid material-filled paper containers using a gable top paper pack (milk carton, etc.) for storing milk and the like. There is.

Japanese Unexamined Patent Publication No. 2010-260614 International Publication No. 2013/054411 Japanese Unexamined Patent Publication No. 2017-186021 Japanese Unexamined Patent Publication No. 2017-19558

Among the above-mentioned prior arts, the self-supporting outer containers (packaging bags and containers) used in Patent Documents 1 and 2 are all lower in accordance with the three-dimensional shape of the liquid substance-filled package to be stored in the upright position. Is a cylinder made of a polygon in a plan view, and has an elliptical shape in a plan view and a plate shape in the upper part. Therefore, in the conventional outer container, the storage volume of the liquid material in the upper part is small (almost no state), and the volume efficiency of the liquid material (capacity of the liquid material / height of the outer container) is lower than that of the paper carton or PET bottle. There was a problem.

In addition, since the upper side surface of the outer container having a plate shape is wider than the lower side surface of the cylinder shape, if a plurality of the outer containers are arranged side by side, the side portions of the upper plate shape may come into contact with each other, resulting in poor fit. In addition, when displaying products on product shelves such as supermarkets and stores, it is necessary to arrange the side surfaces on which the product names are written toward the front, which causes a problem that extra display space is required. rice field.

Further, in recent years, gable top paper packs such as those described in Patent Documents 3 and 4 have been provided with a sealing strength of a superposed portion at the upper end in order to prevent liquid leakage at the distribution stage and prevent foreign matter from being mixed. It is required to be raised and completely sealed. Therefore, especially weak children and elderly people cannot open the package by the force of their fingers, and if they try to open the package forcibly, there are problems such as breakage of an unintended part and deformation of the spout.

Further, since the upper part of the gable top paper pack has a gable roof type, a plurality of the gable top paper packs cannot be stacked, for example, wasteful space is generated in boxing during transportation, and the transportation efficiency is lowered. In addition, when displaying at supermarkets, shops, etc., there is a problem that the number of displays is small, so that the products must be replenished at any time.

Therefore, in the present invention, it is composed of an interior body which is a non-self-supporting liquid material-filled package filled with a liquid material and an exterior body capable of stably holding the interior body, and the capacity of the liquid material. It is an object of the present invention to provide a composite pack for filling a liquid material, which can achieve efficiency and space saving at the time of display.

As a result of diligent studies to develop an outer container that can overcome the above-mentioned problems of the prior art, the present inventor has developed a composite pack for filling a liquid material according to the following gist structure.

That is, the present invention has a bag-shaped interior body in which a soft packaging bag is filled with a liquid substance, and a tubular body, and has a bottom wall at the bottom and an opening at the upper end to form the interior. A composite pack for filling a liquid substance, which comprises a box-shaped exterior body that can store the body, and the interior body is a liquid substance injection projecting from the upper end portion or the upper end portion of the packaging bag. It has a sheet-shaped nozzle for use, and the exterior body extends to an opening at the upper end thereof, and a gable-shaped top plate that closes the opening and a plurality of radial top plates are erected from the top plate. It has a sealing structure composed of vertical ribs, and one of the vertical ribs sandwiches the sheet-shaped nozzle and is configured as a cuttable cover vertical rib to sandwich the cover vertical rib. The top plate located on both sides thereof has a slope larger than that of the other top plates.

In addition, the composite pack for filling liquids of the present invention is
(1) The lower end of the standing base end side of the cover vertical rib from the top plate is located lower than the lower end of the standing base end side of the other vertical ribs.
(2) The protruding end of the sheet-shaped nozzle attached to the packaging bag of the interior body is located inside the cylindrical body side edge of the exterior body.
(3) The boundary line between the tubular body of the exterior body and the sealing structure portion has a shape in which at least one side is curved downward.
(4) The tubular body of the exterior body is composed of a box-shaped columnar body having three or more corners, and at least one of the plurality of vertical ribs is in a plan view of the box-shaped columnar body. Radially or diagonally located through at least one of the corners,
Is a more preferred embodiment.

According to the composite pack for filling liquid matter according to the present invention, the opening at the upper end of the tubular body of the exterior body is sealed by a sealing structure portion composed of a plurality of vertical ribs and a gable-shaped top plate. The tubular body of the exterior body for accommodating the interior body can be made into a box-shaped columnar body, which can contribute to the storage of liquid matter from the bottom to the top of the tubular body. Therefore, the capacity efficiency of the liquid material is improved to the same level as that of the PET bottle, and moreover, it fits well when a plurality of liquid materials are displayed side by side, and space can be saved.
In the present invention, the gable shape refers to various mountain-shaped inclined structures such as a hipped roof and a square roof.

Further, according to the composite pack for filling liquid matter of the present invention, one vertical rib of the sealing structure portion provided at the opening of the upper end of the tubular body of the exterior body is formed from the upper end portion or the upper end of the side end of the interior body. It becomes a cover vertical rib that holds and stores a protruding sheet-shaped nozzle for pouring liquid (hereinafter, also referred to as "sheet-shaped nozzle"), and transports even when the sheet-shaped nozzle is made of a thin-walled soft plastic film. There is no risk of deformation or accidental opening when handling such as, and it is possible to cut out only the cover vertical rib along the planned separation line and expose the sheet-shaped nozzle to the outside for use. can.

Further, according to the composite pack for filling liquid matter of the present invention, the slope of the gable-shaped top plate located on both sides of the cover vertical rib is larger than the slope of the other top plates, so that the cover is vertical. The rib forming space can be increased, and the side edge of the cover vertical rib and the protruding end of the sheet-shaped nozzle stored inside the rib can be positioned inside the tubular body side wall of the exterior body. Therefore, when a plurality of liquid material filling composite packs are displayed or stored side by side, the liquid material filling composite packs do not collide with each other, which saves space and reduces the risk of damage. can do.
Further, according to the present invention, when the vertical ribs of the cover are cut off, the sheet-shaped nozzle can be projected from the adjacent top plate over the entire length of the nozzle, for example, from the base end portion, and the sheet-shaped nozzle remains. Without being affected by tightening by the vertical ribs of the cover, the packaged object can be discharged in the target direction while controlling the discharge amount, and the liquid drainage property can be improved.
The above effect is more effectively exhibited by extending the standing base end side of the cover vertical rib downward so as to be positioned lower than the standing base end side of the other vertical ribs and lengthening the cover vertical rib. ..

Further, in the present invention, by forming the boundary line between the tubular body of the exterior body and the sealing structure portion into a downwardly curved shape, molding becomes easy, and for example, the sealing structure portion is unexpectedly pressed. Even so, the stress can be absorbed by the curved portion, and damage to the exterior body can be prevented.

Further, according to the present invention, the plurality of vertical ribs constituting the sealing structure portion are formed by superimposing a pair of upright walls connected to the top plate, whereby the upper end of the tubular body of the exterior body is formed. The opening can be sealed while suppressing the height of the exterior body.

Further, according to the present invention, the opening at the upper end of the tubular body can be easily opened by pulling the vertical ribs of the sealing structure portion in a direction in which they are separated from each other by fingers. Can be taken out of the exterior body, separated for each material, and discarded. Further, according to the present invention, since a plurality of composite packs for filling liquid substances can be stacked via a plurality of (preferably three or more) vertical ribs provided in the sealing structure portion, during transportation or display. Space can be saved in such cases.

Further, according to the present invention, since the vertical ribs are in an independent state or are separated by a notch provided in the central portion, they can be flexibly flexed independently. Therefore, for example, the present invention. Even if the composite pack for filling a liquid substance of the present invention is unexpectedly dropped, the impact is absorbed by each vertical rib, the joint portion of the vertical ribs is not easily peeled off, and the liquid substance is not easily peeled off. The filling composite pack (exterior body) can be kept in its original shape.

In the present invention, when the interior body is joined to and fixed to the exterior body at least at a position below the sheet-shaped nozzle, a composite pack for filling a liquid material is used as a sheet-shaped nozzle for pouring out the liquid material. Deformation of the sheet-shaped nozzle is suppressed when the sheet is tilted downward, enabling smooth pouring. Even when the sheet-shaped nozzle has a self-sealing function, the inner surface of the pouring passage The adhesion between the two is not hindered, and the invasion of outside air can be sufficiently prevented.

The packaging bag used to form the interior body is formed of a single plastic film, or a laminated film obtained by laminating a plurality of plastic films including one or more plastic films or metal foils. It is preferable, and particularly when a film having a waist is used, it is possible to suppress the occurrence of wrinkles on the interior body when the composite pack for filling the liquid material is tilted in order to pour out the liquid material. It can also prevent the interior from slipping off.

Further, in the present invention, the planned crushing lines are provided at at least two positions of the tubular body located directly below the sheet-shaped nozzle and the tubular body located opposite to the sheet-shaped nozzle of the exterior body, and further, the exterior body. If the bottom wall of the vehicle is provided with a planned bending line that connects to the planned crushing line and bends the bottom wall inward of the tubular body, the exterior body is pressed by pressing the tubular body with fingers. Since it can be crushed along the planned crushing line and the planned bending line, the amount of liquid material injected can be adjusted by the amount of pressing by the fingers, and when the remaining amount of liquid material becomes low. However, the liquid material can be squeezed out to the end.

Further, in the present invention, when the outer body is provided with a removable cap capable of covering the sheet-shaped nozzle exposed to the outside from the sealing structure portion, the sheet-shaped nozzle is stored after being opened. However, it is possible to prevent the spout from becoming dirty, and it is hygienic, and when the cap has a holding structure for the sheet-shaped nozzle, a composite for filling liquid material after opening the sheet-shaped nozzle. Even if the pack unexpectedly falls down, it is possible to prevent the liquid material from leaking out.

It is a perspective view which shows one Embodiment of the composite pack for filling liquids of this invention. It is a left side view of the upper part of the composite pack for filling liquids of FIG. It is a top view of the composite pack for filling a liquid material of FIG. It is a bottom view of the composite pack for filling a liquid material of FIG. It is a side view which showed the composite pack for filling liquids of FIG. 1 from the direction of the arrow AA. It is a side view of the composite pack for filling liquids on the opposite side of FIG. It is a perspective view which shows the state before the storage of the interior body of the exterior body which constitutes the composite pack for filling liquids of FIG. It is a perspective view which shows the state of storing the interior body in the exterior body of FIG. It is a figure explaining the method of cutting off the cover provided in the outer body of the composite pack for filling liquids shown in FIG. It is a figure which shows the other embodiment of the cover provided in the outer body of the composite pack for filling a liquid material. It is a perspective view which shows the other embodiment of the composite pack for filling liquids of this invention. It is a perspective view which shows the other embodiment of the composite pack for filling liquids of this invention. It is a perspective view which shows the other embodiment of the sealing structure part of the composite pack for filling liquids of this invention. It is a perspective view which shows the structure of the connecting piece. It is a perspective view which shows the other embodiment of the composite pack for filling liquids of this invention. It is a perspective view which shows an example of the cap provided on the head of the outer body of the composite pack for filling liquids of this invention. (A) and (b) are end views of the cap in FIG. 17 at the BB position, and (c) is a perspective view showing another example of the cap. It is a perspective view which shows the state which provided the window hole in the vertical rib of the exterior body of the composite pack for filling liquids of this invention. It is a perspective view which shows one Embodiment of the interior body which comprises the composite pack for filling liquids of this invention.

The composite pack P for filling a liquid material of the present invention is made of a bag-shaped interior body in which a liquid material is filled in a soft packaging bag (inner bag) made of a plastic film or the like, and a paper product or the like that stores and holds the interior body. It is composed of a box-shaped exterior body (outer box). Hereinafter, the features of the present invention will be described based on the illustrated embodiments.

FIG. 1 is a perspective view showing an embodiment of a liquid material filling composite pack P, and is composed of an interior body 30 shown by a dotted line in the figure and an exterior body 10 that stores and holds the interior body 30. 2A and 2B are views showing the left side surface of the upper portion of the composite pack P for filling liquid material with the front surface as the front surface, FIG. 3 is a plan view, and FIG. 4 is a bottom view. ..

In the case of the examples shown in FIGS. 1 and 3, the upper portion of the composite pack P for filling the liquid material has four vertical ribs 17a to 17d and four gables formed of a pair of standing walls arranged in a radial pattern (cross shape). It is sealed by a sealing structure portion 13 composed of top plates 18a to 18d.

On the other hand, the lower part of the liquid material filling composite pack P has a bottom wall 25 as shown in the bottom view of FIG. 4, and the bottom wall 25 is a plurality of bottom plates continuous from the lower edge of the tubular body 12. It is formed by engaging or sticking (4 sheets in FIG. 4) to each other.
The composite pack P for filling a liquid material of the present invention is composed of an interior body 30 and an exterior body 10 in which the packaging bag is filled with the liquid material, and the exterior body 10 is not directly filled with the liquid material. Therefore, the bottom wall 25 of the exterior body 10 may be any as long as it can impart independence and prevent the interior body 30 from falling off.

It is preferable that the interior body 30 and the exterior body 10 are joined to each other at at least one place to fix them, and the fixing portion 28 is below the sheet-shaped nozzle 31 of the interior body 30 as shown in FIG. The position is preferable. By providing the fixing portion 28, when the composite pack P for filling the liquid material is tilted so that the sheet-shaped nozzle 31 faces downward in order to eject the liquid material, the sheet-shaped nozzle 31 is deformed or the like. Even when the sheet-shaped nozzle 31 has a self-sealing function for preventing the intrusion of outside air as described later, the adhesion between the inner surfaces of the pouring passages is hindered. It is possible to sufficiently prevent the intrusion of outside air.

First, the exterior body 10 will be described. As described above, the exterior body 10 is a seal for sealing the cylindrical body 12 and the opening 12'at the upper end of the tubular body 12 (hereinafter, 12'is referred to as the "upper end opening"). It has a structural part 13. The sealing structure portion 13 is composed of a gable-shaped top plate 18a to 18d and four vertical ribs 17a to 17d composed of a pair of upright walls erected radially from the top plate 18a to 18d. ..

Of the vertical ribs 17a to 17d, the vertical ribs 17a store the sheet-shaped nozzle 31 inside when the interior body 30 is housed, and function as a cover 19 of the sheet-shaped nozzle 31. (Hereinafter, the vertical rib 17a is also referred to as a "cover vertical rib 17a".) At this time, the sheet-shaped nozzle 31 is stored in the cover vertical rib 17a so that the tip portion faces upward as shown by the dotted line in FIG. It is preferable to do so.

FIG. 5 shows a side view (side view of the cover vertical rib 17a side) when the liquid material filling composite pack P of FIG. 1 is viewed from the direction of arrow AA, and the surface opposite to FIG. 5 (vertical rib 17c). A side view of the composite pack P for filling a liquid material as viewed from the side) is shown in FIG. As can be seen from FIGS. 5 and 6, the shape of the sealing structure portion 13 of the exterior body 10 is significantly different between the cover vertical rib 17a side and the vertical rib 17c side.

As can be seen from FIG. 1, the slopes of the top plates 18a (not shown) and the top plates 18b located on both sides of the cover vertical rib 17a are higher than those of the other top plates 18c and 18d (not shown). This is because it is large and has a steep slope. In this embodiment, the standing base end sides 50 of the cover vertical ribs 17a from the top plates 18a and 18b are extended downward, and the cover vertical ribs 17a are positioned lower than the standing base end sides 51 of the other vertical ribs 17b to 17d. By doing so, the gradients of the top plate 18a and the top plate 18b are increased.

By increasing the gradients of the top plates 18a and 18b located on both sides of the cover vertical ribs 17a in this way, the space for forming the cover vertical ribs 17a is increased, and the sheet shape of the interior body 30 located inside is increased. The nozzle 31 can be stored without the cover vertical rib 17a protruding from the side wall of the tubular body 12. As a result, the side edge of the cover vertical rib 17a and the side wall of the tubular body 12 (in FIG. 1, the planned crushing line 24 of the 12-cornered tubular body) are lined up in a straight line, and the liquid material is filled. When displaying or storing a plurality of composite packs P for arranging them side by side, the composite packs for filling liquids P do not collide with each other, which can save space and reduce the risk of damage. can.

The length of the upright base end side 50 of the cover vertical rib 17a is 1.2 to 2.0 times, preferably 1.4 to 1 times the length of the upright base end side 51 of the other vertical ribs 17b to 17d. It is preferable that the value is 8.8 times. By setting this range, the gradients of the top plates 18a and 18b are increased, the space for forming the cover vertical ribs 17a is expanded, and the entire sheet-shaped nozzle 31 is covered vertically without reducing the capacity of the exterior body 10. It can be stored in the rib 17a. Further, when the cover vertical rib 17a is cut off to expose the sheet-shaped nozzle 31 to the outside and the packaged object is discharged, the sheet-shaped nozzle 31 can be appropriately fixed and tightened by the remaining cover vertical rib 17a. It is expected that the discharge amount of the packaged object can be easily controlled, the discharge direction is excellent, and the occurrence of dripping can be suppressed.

In the present embodiment, the case where the tubular body 12 of the exterior body 10 is composed of a square columnar body is shown as an example, but the present invention is not limited to this, and the tubular body body 12 is a box-shaped columnar body. It suffices, and it can be a columnar shape as well as a polygonal columnar shape such as a triangular columnar shape and a pentagonal columnar shape.

The material of the exterior body 10 is not particularly limited, but is composed of a composite of paper and plastic on which paper or paper is used as a base material and at least one sheet, for example, a plastic film such as nylon, polyester, or polyethylene is laminated. Is preferable, and it is more preferable to laminate a metal foil, a metal vapor deposition layer, various barrier layers, and the like as required. As the exterior body 10, it is possible to use a body that can be formed into a desired shape by bending one sheet, which is preferable in terms of improving manufacturing efficiency.

FIG. 7 is a perspective view showing an embodiment of the exterior body 10 before the interior body 30 is housed. The tubular body 12 is provided with an annular body 11 forming a sealing structure portion 13 for sealing the upper end opening 12'at the upper end edge thereof. As shown in FIG. 8, the interior body 30 filled with the liquid material is stored through the upper end opening 12'of the tubular body 12, and at this time, the upper end edge of the sealing structure portion 13 of the outer body 10 and the upper end edge of the sealing structure portion 13 are stored. The upper edge of the stored interior body 30 can be overlapped (for example, partially attached) to fix the interior body 30 and the exterior body 10 and a sheet-shaped nozzle of the interior body 30. It is preferable to arrange 31 in a predetermined position.

The annular body 11 is folded along the mountain fold line 14 extending from the four corners of the tubular body 12 and the valley fold line 15 provided between the mountain fold lines 14, and the four inner tips of the valley fold line 15 are folded. By abutting the portions 16 against each other, the four vertical ribs 17a to 17d (mountain fold portions), which are composed of a pair of standing walls as shown in FIGS. 1 and 3 and are located radially (cross-shaped), and the vertical ribs. A sealing structure portion 13 composed of top plates 18a to 18d formed between 17a to 17d and the upper end opening 12'is formed.
In the present embodiment, the sealing structure portion 13 is provided with four vertical ribs 17a to 17d, but it is preferable to provide three or more vertical ribs, and it is preferable to appropriately select them according to the purpose, application, and the like. ..

In the liquid material filling composite pack P configured in this way, the liquid material can be filled in the same opening area over the entire length from the bottom to the top of the tubular body 12 of the exterior body 10, and the tubular body can be filled. By sealing the upper end opening 12'of 12 with the sealing structure portion 13 provided in the upper end opening 12', the height of the liquid material filling composite pack P can be made as low as possible. , The effect that the capacity efficiency of liquid matter (capacity of liquid matter / height of outer container) can be increased to more than twice that of the outer container shown in the prior art and to the same level as that of PET bottles on the market is expected. can.

Further, in the liquid material filling composite pack P, the four vertical ribs 17a to 17d of the sealing structure portion 13 are formed so that the four inner tip portions 16 of the valley fold line 15 are butted against each other as described above. Therefore, the upper end opening 12'can be easily opened by pulling the two opposing vertical ribs, the vertical ribs 17a and the vertical ribs 17c in FIG. 1, or the vertical ribs 17b and the vertical ribs 17d in a direction in which they are separated from each other by fingers. After use, the interior body 30 can be taken out from the exterior body 10 and separated and discarded for each material.

As described above, the sheet-shaped nozzle 31 of the interior body 30 is stored between one of the four vertical ribs 17a to 17d, and in FIG. 1, between the pair of standing walls of the vertical ribs 17a, as shown by the dotted line. As a result, the sheet-shaped nozzle 31 is protected from both the front and back surfaces by the cover 19 until the start of use, so that there is no risk that the sheet-shaped nozzle 31 will be deformed or erroneously opened during handling such as transportation. If at least a part of the sheet-shaped nozzle 31 is detachably attached or fused to the inner surface of the cover 19, the sheet-shaped nozzle 31 can be further suppressed from being deformed.

On the other hand, in the remaining three vertical ribs 17b to 17d, a pair of overlapping upright walls are attached or fused at least at the upper end portion, so that the upper end opening 12'of the cylindrical body 12 is formed with the top plate 18a to 18d. It becomes a sealing piece that is sealed in cooperation. At this time, the upper end portion of the interior body 30 is sandwiched between the pair of standing walls of the vertical ribs 17b to 17d. It is preferable to fix the upper end portion (on the side opposite to the position) (fixed portion 28).

In the present embodiment, the four vertical ribs 17a to 17d are provided on a straight line passing through the four corners of the cylindrical body 12 in a plan view, but at least the cover 19 for accommodating and holding the sheet-shaped nozzle 31 is provided. The vertical rib 17a to be used may be located on a straight line passing through at least one corner of the tubular body 12.

As shown in FIG. 1, the cover 19 can be cut along the planned separation line 20 formed by perforations or the like provided in the sealing structure portion 13, and the cover 19 can be cut off to form a sheet located inside. The nozzle 31 can be exposed to the outside.

As shown in FIGS. 2 and 3, one of the pair of upright walls constituting the cover vertical rib 17a is composed of flaps 21, and the flaps 21 are mountain fold lines 14 or 10 as shown in FIG. As shown in the above, the vertical rib 17a can be opened and closed starting from the upper end edge. Taking the case of FIG. 9 as an example, a method of cutting off the cover 19 will be described. First, the flap 21 is opened by fingers in the direction of the arrow starting from the mountain fold line 14, and then the planned separation line 20 provided on the upright wall on the other side. The cover vertical rib 17a (cover 19) is cut off along the line to expose the sheet-shaped nozzle 31 to the outside. At least a part of the flap 21 is attached or fused to the upright wall on the other side of the cover vertical rib 17a to suppress the exposure of the sheet-shaped nozzle 31 located inside until the start of use to the outside. Is preferable.

Further, in the exterior body 10, one crushing planned line 24a is provided on the tubular body 12 (corner portion of the square pillar in FIG. 1) located directly below the sheet nozzle 31, and the tubular body 12 (opposite position) is provided. In FIG. 1, it is preferable to provide another planned crushing line 24b at the other corner of the square cylinder). Further, as shown in FIG. 4, the bottom wall 25 is provided with a planned bending line 26 composed of perforations or the like which are connected to the planned crushing lines 24a and 24b and bend the bottom wall 25 inward of the tubular body 20. It is preferable to provide it.
As a result, the tubular body 12 of the exterior body 10 can be crushed along the planned crushing lines 24a and 24b and the planned bending line 26 until the tubular body 12 becomes flat. The amount of the liquid material to be poured out can be adjusted, and the liquid material can be squeezed out to the end even when the remaining amount of the liquid material is low. Is composed of a square columnar body, so that the planned crushing line 24b is located at the corner of the tubular body 12, but the planned crushing line 24b is the tubular body 12 according to the shape of the tubular body 12. It is provided on the wall of the wall as appropriate.

FIG. 11 is a perspective view showing another embodiment of the composite pack P for filling a liquid material of the present invention. In this filling pack P for liquid matter, in the horizontal direction, the wall surface of the tubular body 12 of the exterior body 10 is gripped by fingers, for example, vertically from the center position in the height direction of the tubular body 12, for example, about 5 cm. A plurality of extending recesses 29 are provided. The recess 29 can prevent slipping off when gripped by fingers. The recess 29 can be formed by pressing a material such as paper constituting the exterior body 10 in a required shape.

FIG. 12 is a perspective view showing another embodiment of the liquid material filling composite pack P of the present invention, and the liquid material filling composite pack P of FIG. 1 is a pair forming a vertical rib 17a of the exterior body 10. The structure of the upright wall is different. In this liquid material filling composite pack P, the upright walls have the same shape, and the planned separation lines 20 are formed on the two upright walls in the same shape, so that the double upright walls That is, the cover 19 can be cut off at once.

Further, in the liquid material filling composite pack P of the embodiment shown in FIG. 12, the boundary line 52 between the sealing structure portion 13 of the exterior body 10 and the tubular body 12 is curved downward. By forming the boundary line 52 between the tubular body 12 of the exterior body 10 and the sealing structure portion 13 in a downwardly curved shape in this way, molding becomes easy, and for example, the sealing structure portion 13 is unexpectedly formed from the outside. Even if pressure is applied to the body, the effect of absorbing the stress by the curved portion and preventing damage to the exterior body can be expected.

FIG. 13 is a perspective view showing another embodiment of the sealing structure portion 13 of the composite pack P for filling a liquid material of the present invention. As shown in FIG. 13, each of the vertical ribs 17a to 17d is divided via a notch 37 provided in the central portion. Therefore, the four vertical ribs 17a to 17d are held independently of each other, and even if the composite pack P for filling the liquid material is accidentally dropped during handling or the like, the vertical ribs 17a to 17d are retained. Since it flexibly bends to absorb the impact, the joints (walls) of the vertical ribs 17a to 17d are suppressed from peeling or deforming, and the composite pack P (exterior body 10) for filling liquid matter is suppressed. ) Can be kept in its original shape. Further, when two opposing vertical ribs (vertical ribs 17a and vertical ribs 17c, or vertical ribs 17b and vertical ribs 17d) are pulled in a direction in which they are separated from each other by fingers, the notch 37 becomes a starting point and the sealing structure portion is formed. 13 can be easily opened. Further, since the four vertical ribs 17a to 17d are in an independent state, the inner surfaces of the two upright walls can be easily overlapped with each other, and the sealing structure portion 13 can be easily formed.

As shown in FIG. 14A, it is preferable that at least one connecting piece 22 for connecting one upright wall and the other upright wall to each other is provided at the upper end of each of the vertical ribs 17a to 17d. Since the connecting piece 22 improves the joint strength between the walls of the vertical ribs 17a to 17d composed of a pair of upright walls, even if the composite pack P for filling the liquid material is accidentally dropped during handling or the like, the vertical ribs 17a The joint (between the pair of upright walls) of ~ 17b is not peeled off or deformed, and the composite pack P (exterior body 10) for filling the liquid material can be kept in its original shape.

The connecting piece 22 is formed of a member separate from the exterior body 10, and as shown as an example in FIG. 14B, the connecting piece 22 continuously protrudes from one wall of the pair of upright walls constituting the vertical rib 17c. By providing the piece 22a and folding and attaching the projecting piece 22a to the wall surface of the other wall, a connecting piece 22 connecting the two upright walls can be formed.

Since the connecting piece 22 is firmly attached to the wall surfaces of the vertical ribs 17a and 17b, when the interior body 30 is taken out from the exterior body 10, for example, when the composite pack P for filling a liquid material is discarded. , The connecting piece 22 cannot be broken by the force of a finger, and the sealing structure portion 13 may not be easily opened. Therefore, as shown in an enlarged manner in FIG. 14A, it is between the double upright walls forming the vertical ribs 17c of the connecting piece 22, preferably on the inner tip 16 side of the valley fold line 15. It is preferable to provide a notch 23 at the end, whereby the two opposing vertical ribs (vertical ribs 17a and vertical ribs 17c, or vertical ribs 17b and vertical ribs 17d) are pulled apart from each other by fingers. Then, the connecting piece 22 can be easily broken by using the notch portion 23 as a starting point.

FIG. 15 shows another embodiment of the composite pack P for filling liquids of the present invention. In this liquid material filling composite pack P, three vertical ribs 17a to 17c are provided as the sealing structure portion 13 of the exterior body 10. Further, as shown in the figure, on the corners of the tubular body 12 of the exterior body 10 and on the body wall portion where the fingers are located when the tubular body 12 is gripped by fingers, although not shown. If the easily deformable portion 27 that can be depressed and deformed inward is provided, the exterior body 10 can be easily held by the fingers by grasping the exterior body 10 through the easily deformable portion 27, and the exterior body 10 can be easily held and slipped off from the fingers. It can be suppressed.

Further, as shown in FIG. 16, when a cap 38 made of resin, paper, or the like is detachably provided on the head of the exterior body 10, the composite pack P for filling the liquid material is provided after the sheet-shaped nozzle 31 is opened. Even when it is stored for a long period of time, it is hygienic because it is possible to prevent the spout of the sheet-shaped nozzle 31 exposed to the outside from becoming dirty. As shown in FIG. 16, the cap 38 has substantially the same shape as the sealing structure portion 13 of the exterior body 10 (a shape slightly larger than the sealing structure portion 13), and the ribs 38a to 38d are radial (cross-shaped). It is preferably formed, but it may have any shape as long as it can cover at least the sheet-shaped nozzle 31.

The cap 38 preferably has a holding structure in which the rib 38a covering at least the cover vertical rib 17a for holding the sheet-shaped nozzle 31 can sandwich at least a part of the sheet-shaped nozzle 31 from both side surfaces. Due to the sandwiching structure, the force acting in the direction in which the pouring passage of the sheet-shaped nozzle 31 expands (opens) is suppressed, and after the sheet-shaped nozzle 31 is opened, the liquid material filling composite pack P unexpectedly falls down or the like. Even if this happens, it is possible to prevent the liquid material from leaking out.

As the sandwiching structure, for example, as shown in the end view (FIGS. 17A and 17B) at the position BB in FIG. 16, the inner surface of the pair of wall portions 39a and 39b constituting the rib 38a is formed. The sandwiching portions 40a and 40b that come into contact with each other are provided (FIG. 17 (a)), and one or more irregularities are provided on the inner surfaces of the pair of wall portions 39a and 39b to engage with each other (FIG. 17 (b)). In addition, as shown in FIG. 17C, the sheet-shaped nozzle 31 is sandwiched from both side surfaces, such as by providing a dogleg-shaped bent portion 42 in the length direction of the pair of wall portions 39a and 39b. Any structure may be used as long as it can be used.

As shown in FIG. 18, if the window hole 41 is provided in the vertical rib 17a and the holding portions 40a and 40b of the cap 38 are fitted into the window hole 41, the cap 38 can be fitted to the head of the exterior body 10. It is possible to improve the fit when the cap 38 is fitted into the portion and prevent the cap 38 from falling off. Further, by providing the window hole 41, the sheet-shaped nozzle 31 located inside the vertical rib 17a can be visually recognized from the outside.

Further, the cap 38 preferably has an engaging structure for preventing the exterior body 10 from falling off from the head. For example, the lower end portion of the cap 38 and the side surface of the exterior body 10 are provided with irregularities to engage the two. By combining them, both can be firmly fixed.

Next, the interior body 30 will be described. As shown as an example in FIG. 19, the interior body 30 is a packaging bag 32 made of one plastic film or a laminated film obtained by laminating a plurality of plastic films including one or more plastic films or metal foils. Various liquids such as liquid and viscous can be used, for example, filled and packaged by filling with a seal in the liquid. In particular, when the packaging bag 32 is made of a plastic film having a thickness and a waist, the generation of wrinkles on the packaging bag 32 is suppressed and smooth pouring can be performed, and the liquid material is poured out. It is possible to prevent the interior body 30 from sliding downward when the filling composite pack P is tilted or the like.

In the interior body 30 of FIG. 19, the sheet-shaped nozzle 31 is projected from the upper portion of the side portion of the interior body 30, but the sheet-shaped nozzle 31 may be projected from the upper end portion of the interior body 30. Further, as shown in FIG. 1, the sheet-shaped nozzle 31 projects diagonally upward toward the upper side or upper end of the packaging bag 32 so as to face upward when stored in the vertical rib 17a of the exterior body 10. It may be provided as follows.

The sheet-shaped nozzle 31 can be opened by cutting off the tip portion along a notch 33 such as a V notch provided near the tip portion, for example. Further, it is preferable that the lower edge portion of the sheet-shaped nozzle 31 is provided with a protrusion 34 for preventing liquid dripping propagation at a position near the nozzle base end portion 31a near the planned opening position, whereby the sheet-shaped nozzle 31 of the sheet-shaped nozzle 31 is provided. The liquid substance (dripping) dripping from the opening will be dropped from the tip of the protrusion 34 onto the floor surface, and it is possible to prevent the interior body 30 and the exterior body 10 from being contaminated by the dripping.

The sheet-shaped nozzle 31 is preferably made of a plastic laminated film including at least a base film layer and a sealant film layer laminated on both sides of the base film layer, and the plastic laminated film is placed on the front and back sides. In the superposed state, the pouring passage 35 is formed in the central portion by heat-sealing at the peripheral portion except for the base end portion 31a.
In particular, when the sheet-shaped nozzle 31 has a self-sealing function, the liquid substance in the packaging bag 32 is poured out without sucking outside air by tilting the packaging bag 32 or pressing the packaging bag 32. When stopping the pouring based on the return of the packaging bag 32 to the standing position or the release of the pressure on the packaging bag 32, the sheet-shaped nozzle 31 is exposed to the negative pressure due to the reduced pressure atmosphere in the packaging bag 32. The inner surfaces of the 35 can immediately adhere to each other under the presence of a thin film of liquid matter adhering to the inner surface of the pouring passage 35 (inflowing from the inside of the packaging bag 32) to prevent outside air from entering the packaging bag 32. can.

Further, the sheet-shaped nozzle 31 crosses the pouring passage from the planned opening position to the base end portion 31a side, preferably near the planned opening position, and presses the front and back plastic films constituting the sheet nozzle 31 by close contact with each other. It is preferable to have the processed portion 36. The pressing portion 36 bends or presses the laminated plastic films on the front and back surfaces in the same direction or in directions facing each other at a required temperature and pressure by, for example, a pressing blade having a required cross-sectional shape. It can be formed by bending, for example, it is composed of a curved portion having a mountain-shaped cross section, a bent portion having a trapezoidal cross section, and the like.

In the pressing portion 36 formed of the bent portion or the curved portion formed in this way, the laminated plastic films on the front and back surfaces of the pressing portion 36 are separated from each other by the hydraulic pressure of the liquid material flowing into the pouring passage 35. On the other hand, the laminated plastic film quickly returns to its original shape due to the elastic restoring force when the pouring of the liquid material is stopped, and the sheets are in close contact with each other in a linear or planar shape. The pouring passage 35 of the shape nozzle 31 is automatically shut off. At this time, if the sheet-shaped nozzle 31 has the self-sealing function as described above, the laminated plastic films on the front and back surfaces at the position 36 of the pressing portion 36 are not brought into close contact with each other as the injection of the liquid substance is stopped. The liquid material remaining in the outlet passage 35 and in the vicinity of the tip opening is exposed to the negative pressure due to the reduced pressure atmosphere in the packaging bag 32 and is sucked into the packaging bag 32, so that the liquid drainage property is improved and the liquid matter from the tip opening is improved. It is possible to effectively suppress the dropping of pottery. The pressing portion 36 can more effectively improve the liquid drainage property when the front and back plastic films are in close contact with each other in the discharge direction of the liquid material with a width of 0.5 to 5.0 mm. can.

The composite pack for filling liquids of the present invention can be widely used as a container for filling and packaging liquid or viscous liquids such as beverages, pharmaceuticals, and chemicals.

P Liquid material filling composite pack 10 Exterior body 11 Ring body 12 Cylindrical body 12'Upper end opening 13 Sealing structure 14 Mountain fold line 15 Valley fold line 16 Inner tip 17a, 17b, 17c, 17d Vertical rib 18a, 18b, 18c, 18d Top plate 19 Cover 20 Scheduled disconnection line 21 Flap 22 Connecting piece 22a Projection piece 23 Notch 24a, 24b Scheduled crushing line
25 Bottom wall 26 Scheduled bending line 27 Easy deformation part 28 Fixed part 29 Concave 30 Interior body 31 Sheet-shaped nozzle 31a Base end part 32 Packaging bag 33 V notch 34 Protrusion 35 Injection passage 36 Pressing part 37 Notch 38 Cap 38a, 38b, 38c, 38d Ribs 39a, 39b Wall 40a, 40b Holding 41 Window hole 42 Bent 50, 51 Standing base end 52 Boundary line

Claims (5)

A bag-shaped interior made by filling a soft packaging bag with a liquid material,
A box-shaped exterior body having a bottom wall at the bottom and an opening at the upper end to accommodate the interior body with respect to the tubular body.
A composite pack for filling liquids consisting of
The interior body has a sheet-like nozzle for pouring out a liquid substance protruding from the upper end portion or the upper end portion of the packaging bag.
The exterior body extends to an opening at the upper end thereof, and has a sealing structure portion including a gable-shaped top plate that closes the opening and a plurality of vertical ribs erected radially from the top plate. Have and
One of the vertical ribs sandwiches the sheet-shaped nozzle and is configured as a cuttable cover vertical rib, and the slope of the top plate located on both sides of the cover vertical rib sandwiching the cover vertical rib , A composite pack for filling liquids, which is characterized by being larger than the slope of other top plates. The first aspect of claim 1, wherein the lower end of the standing base end side of the cover vertical rib from the top plate is located lower than the lower end of the standing base end side of the other vertical rib. Composite pack for filling liquids. The liquid according to claim 1 or 2, wherein the protruding end of the sheet-shaped nozzle attached to the packaging bag of the interior body is located inside the cylindrical body side wall of the exterior body. Composite pack for filling. The liquid material filling according to any one of claims 1 to 3, wherein at least one side of the boundary line between the tubular body of the exterior body and the sealing structure portion is curved downward. Composite pack. The tubular body of the exterior body is composed of a box-shaped columnar body having three or more corners, and at least one of the plurality of vertical ribs is the cornered portion in a plan view of the box-shaped columnar body. The composite pack for filling a liquid material according to any one of claims 1 to 4, which is located radially or diagonally through at least one of the above.

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