CN110997518B - Liquid container, method of using liquid container, and assembly of liquid container and outer container - Google Patents

Liquid container, method of using liquid container, and assembly of liquid container and outer container Download PDF

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Publication number
CN110997518B
CN110997518B CN201880052601.3A CN201880052601A CN110997518B CN 110997518 B CN110997518 B CN 110997518B CN 201880052601 A CN201880052601 A CN 201880052601A CN 110997518 B CN110997518 B CN 110997518B
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China
Prior art keywords
base material
liquid container
container
liquid
main body
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CN201880052601.3A
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Chinese (zh)
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CN110997518A (en
Inventor
阿部智惠
高垣李子
古贺亮祐
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/04—Linings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

Abstract

In a rectangular box-shaped outer container, a folded liquid storage container is raised in conformity with the inner surface of the outer container. The liquid storage container (1) has a bag main body (3) and a spout (40), and the bag main body (3) has a1 st base material portion (2A), a2 nd base material portion (2B), and a hem portion (2C). A rectangular bottom surface (30) centered on the bottom edge joint (10B) is formed on the bottom (3B) of the bag body (3). In addition, a rectangular upper surface (35) centered on the upper edge joint (10a) is formed on the upper portion (3A) of the bag body (3). The bottom surface (30) and the upper surface (35) are fixed by a1 st fixing band (31), a 3 rd fixing band (32), a2 nd fixing band (36) and a 4 th fixing band (37) to maintain the shape.

Description

Liquid container, method of using liquid container, and assembly of liquid container and outer container
Technical Field
Embodiments of the present disclosure relate to a liquid container and a combination of a liquid container and an exterior container, and more particularly, to a liquid container, a method of using the liquid container, and a combination of a liquid container and an exterior container, which are used for storing and transporting a flowable content in the fields of industrial chemicals, pharmaceuticals, and cosmetic raw materials.
Background
In the field of industrial chemicals, pharmaceutical products, cosmetic materials, and the like, liquid storage containers that are disposed inside an outer container made of aluminum, plastic, steel, stainless steel, fiberboard, or the like and that store flowable contents have been used for storage and transportation.
Such a liquid container can be reused only by taking out a used liquid container from the outer container and placing a new liquid container in the outer container, and therefore, there is an advantage that, for example, compared with a case where a liquid container is not used and a flowable content is directly filled in an outer container made of plastic, steel, or the like, labor for cleaning or the like is omitted, and such a liquid container is widely used as a container for industrial chemicals, pharmaceuticals, and cosmetic materials.
As a liquid container, a flat liquid container having a bag body and a spout attached to the bag body is known. Such a liquid storage container is first compactly folded and inserted into the outer container through the opening of the outer container. Then, the liquid container is expanded in the outer container, and the outer shape of the liquid container is arranged along the inner surface of the outer container in the outer container.
When a large capacity outer container is used as the outer container in which the liquid container is disposed, for example, an outer container having a capacity of about 1000l is used, and the outer container has a box shape like a container. As described above, the flat liquid storage container which is compactly folded and inserted into the outer container is raised in conformity with the shape of the inner surface of the box-shaped outer container. However, in the case of the exterior container having a box-like shape, it is difficult to reliably bulge the flat liquid container in conformity with the shape of the inner surface of the box-like exterior container.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2008-7154
Patent document 2: japanese patent No. 3,464,232
Patent document 3: U.S. Pat. No. 5,102,010 publication
Disclosure of Invention
Problems to be solved by the invention
Embodiments of the present disclosure have been made in view of such problems, and an object thereof is to provide a liquid container that can easily and simply bulge a liquid container inserted into an outer container in conformity with the shape of the inner surface of the outer container, a method of using the liquid container, and a combination of the liquid container and the outer container.
Means for solving the problems
A liquid container according to an embodiment of the present disclosure is inserted into an outer container from an opening of the outer container, and includes: a bag main body having a1 st base material portion, a2 nd base material portion, and a pair of hem portions provided on both sides of the 1 st base material portion and the 2 nd base material portion; and a spout provided in the bag main body, the bottom of the bag main body having a bottom edge joint portion, the bottom of the bag main body having a rectangular bottom surface including the bottom edge joint portion, the upper portion of the bag main body having an upper edge joint portion, the upper portion of the bag main body having a rectangular upper surface including the upper edge joint portion, the bottom surface having a1 st fixing member, the upper surface having a2 nd fixing member, the bottom edge joint portion having: a bottom edge body joining portion formed by joining the 1 st base material portion and the 2 nd base material portion; and a bottom edge folding portion joint portion that is formed by joining the 1 st base material portion and the edge folding portion and joining the 2 nd base material portion and the edge folding portion, wherein the 1 st fixing member fixes the bottom edge folding portion joint portions to each other, and the upper edge joint portion includes: an upper edge main body joining part formed by joining the 1 st base material part and the 2 nd base material part; and an upper edge gusset portion joining portion that joins the 1 st base material portion and the gusset portion, and the 2 nd base material portion and the gusset portion, the 2 nd fixing member fixing the upper edge gusset portion joining portions to each other.
In the liquid storage container according to the embodiment of the present disclosure, it is preferable that the bottom surface and the pair of edge folding portions disposed on both sides of the bottom surface are fixed by a 3 rd fixing member, and the upper surface and the pair of edge folding portions disposed on both sides of the upper surface are fixed by a 4 th fixing member.
The liquid container according to the embodiment of the present disclosure is preferably folded in half with the upper edge joining portion and the bottom edge joining portion as a folding line.
The liquid receiving container of the embodiments of the present disclosure is preferably folded along a longitudinal bending line.
The liquid storage container of the embodiments of the present disclosure is preferably folded in a corrugated shape along the longitudinal bending line.
The liquid container according to the embodiment of the present disclosure preferably has a shape retaining portion provided to maintain a folded shape of the liquid container.
The method for using a liquid container according to an embodiment of the present disclosure includes the steps of: preparing the liquid container; and inserting the liquid container into the outer container from the opening in a folded state.
The method for using a liquid container according to an embodiment of the present disclosure further includes: and supplying a gas into the liquid container from the outlet of the liquid container to swell the liquid container in the outer container.
The method for using a liquid container according to an embodiment of the present disclosure further includes: filling the content liquid into the liquid container bulging in the outer container from the pouring port.
The method for using a liquid container according to an embodiment of the present disclosure further includes: the content liquid is supplied into the liquid container from the spout of the liquid container, and the content liquid is filled into the liquid container while the liquid container is being swelled inside the outer container.
The combination of the liquid container and the outer container according to the embodiment of the present disclosure includes: an outer container having an opening; and a liquid container inserted from the opening, the liquid container including: a bag main body having a1 st base material portion, a2 nd base material portion, and a pair of hem portions provided on both sides of the 1 st base material portion and the 2 nd base material portion; and a spout provided in the bag main body, the bottom of the bag main body having a bottom edge joint portion, the bottom of the bag main body having a rectangular bottom surface including the bottom edge joint portion, the upper portion of the bag main body having an upper edge joint portion, the upper portion of the bag main body having a rectangular upper surface including the upper edge joint portion, the bottom surface having a1 st fixing member, the upper surface having a2 nd fixing member, the bottom edge joint portion having: a bottom edge body joining portion formed by joining the 1 st base material portion and the 2 nd base material portion; and a bottom edge folding portion joint portion that is formed by joining the 1 st base material portion and the edge folding portion and joining the 2 nd base material portion and the edge folding portion, wherein the 1 st fixing member fixes the bottom edge folding portion joint portions to each other, and the upper edge joint portion includes: an upper edge main body joining part formed by joining the 1 st base material part and the 2 nd base material part; and an upper edge gusset portion joining portion that joins the 1 st base material portion and the gusset portion, and the 2 nd base material portion and the gusset portion, the 2 nd fixing member fixing the upper edge gusset portion joining portions to each other.
The combination of the liquid container and the outer container according to the embodiment of the present disclosure includes: an outer container having an opening; and a liquid container inserted from the opening and filled with a content liquid, the liquid container including: a bag main body having a1 st base material portion, a2 nd base material portion, and a pair of hem portions provided on both sides of the 1 st base material portion and the 2 nd base material portion; and a spout provided in the bag main body, the bottom of the bag main body having a bottom edge joint portion, the bottom of the bag main body having a rectangular bottom surface including the bottom edge joint portion, the upper portion of the bag main body having an upper edge joint portion, the upper portion of the bag main body having a rectangular upper surface including the upper edge joint portion, the bottom surface having a1 st fixing member, the upper surface having a2 nd fixing member, the bottom edge joint portion having: a bottom edge body joining portion formed by joining the 1 st base material portion and the 2 nd base material portion; and a bottom edge folding portion joint portion that is formed by joining the 1 st base material portion and the edge folding portion and joining the 2 nd base material portion and the edge folding portion, wherein the 1 st fixing member fixes the bottom edge folding portion joint portions to each other, and the upper edge joint portion includes: an upper edge main body joining part formed by joining the 1 st base material part and the 2 nd base material part; and an upper edge gusset portion joining portion that joins the 1 st base material portion and the gusset portion, and the 2 nd base material portion and the gusset portion, the 2 nd fixing member fixing the upper edge gusset portion joining portions to each other.
ADVANTAGEOUS EFFECTS OF INVENTION
As described above, according to the present disclosure, the liquid container inserted into the outer container can be easily and easily bulged in conformity with the shape of the inner surface of the outer container.
Drawings
Fig. 1 is a diagram illustrating a liquid container according to an embodiment of the present disclosure.
Fig. 2 is a diagram showing a state where the liquid container is manufactured.
Fig. 3 is a diagram illustrating a folding action of the liquid container.
Fig. 4 is a diagram illustrating a folding action of the liquid container.
Fig. 5 is a view showing a folding action of the liquid container.
Fig. 6 is a view showing a folding action of the liquid container.
Fig. 7 is a diagram illustrating a folding action of the liquid container.
Fig. 8 is a diagram illustrating a folding action of the liquid container.
Fig. 9 is a diagram illustrating a folding action of the liquid container.
Fig. 10 is a diagram illustrating a folding action of the liquid container.
Fig. 11 is a view showing a folding action of the liquid container.
Fig. 12 is a view showing a folding action of the liquid container.
Fig. 13 is a perspective view showing the spout.
Fig. 14 is a plan view showing the injection port.
Fig. 15A is a plan view showing the holding tool.
Fig. 15B is a side view showing the holding fixture.
Fig. 16 is a view showing a state where the spout is inserted into the holding tool.
Fig. 17 is a plan view showing the combination of the spout and the holding tool.
Fig. 18 is a side view showing the combination of the spout and the holding means.
Fig. 19 is a view showing a state in which the liquid container is inserted into the outer container.
Fig. 20 is a perspective view showing a combination of the spout and the holding tool.
Fig. 21 is a side sectional view showing a combination of the spout and the holding tool.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Here, fig. 1 to 21 are diagrams illustrating an embodiment of the present invention.
First, the liquid container 1 will be described. As shown in fig. 1 and 2, the 1 st base material portion 2A, the 2 nd base material portion 2B, and the edge fold portion 2C are prepared, in which the 1 st base material portion 2A and the 2 nd base material portion 2B are first overlapped. Next, the pair of edge folding portions 2C having the folded-in portion 2C1 folded in two are inserted between the 1 st base material portion 2A and the 2 nd base material portion 2B from both sides and joined together to form the joined portion 10, thereby obtaining the bag body 3. The liquid container 1 includes the bag body 3 and the spout 40, and the spout 40 is disposed on the upper edge 3a of the bag body 3 and is thermally welded between the 1 st base material portion 2A and the 2 nd base material portion 2B.
Here, the "1 st base material portion 2A" and the "2 nd base material portion 2B" may be formed of separate films and joined to each other to form the bag main body 3, or may be formed by folding 1 sheet of film to form a bag main body having the 1 st base material portion 2A and the 2 nd base material portion 2B.
In the present specification, "upper part", "upper edge", "bottom part" and "bottom edge" refer to "upper part", "upper edge", "bottom part" and "bottom edge" in the case where the liquid storage container 1 is disposed with the spout 40 facing upward. The term "both sides" refers to both sides in the width direction of the 1 st base material portion 2A and the 2 nd base material portion 2B perpendicular to a straight line passing through the spout 40 connecting the upper portion and the bottom portion of the bag main body 3.
In this case, the bag body 3 has a rectangular shape having an upper edge 3a, a bottom edge 3b, and side edges 3c (see fig. 1).
Further, the joint portion 10 has: an upper edge joining part 10a formed by joining the opened upper part 3A of the bag main body 3; and a bottom edge joining part 10B formed by joining the open bottom 3B of the bag main body 3. The 1 st base material portion 2A and the pair of edge folding portions 2C are joined together to form a side edge joint portion 10C, and the 2 nd base material portion 2B and the pair of edge folding portions 2C are also joined together to form a side edge joint portion 10C. In the embodiment shown in fig. 1 and 2, the embodiment in which the 1 st base material portion 2A and the 2 nd base material portion 2B are each formed of a separate film is explained, and therefore the bottom portion 3B of the bag main body 3 is opened, but in the case of manufacturing the bag main body 3 having the 1 st base material portion 2A and the 2 nd base material portion 2B by folding the 1 st film, a portion which is folded and is not opened in the bottom portion 3B of the bag main body 3 may be joined to form the bottom edge joining portion 10B.
Wherein, the upper edge joint part 10a has: an upper edge main body joining portion 10a1 formed by joining the 1 st base material portion 2A and the 2 nd base material portion 2B; and an upper edge gusset portion joining portion 10a2 formed by joining the 1 st base material portion 2A and the gusset portion 2C and joining the 2 nd base material portion 2B and the gusset portion 2C.
Further, the bottom edge joint portion 10b includes: a bottom edge main body joining portion 10B1 formed by joining the 1 st base material portion 2A and the 2 nd base material portion 2B; and a bottom-edge-folded-portion joining portion 10B2 formed by joining the 1 st base material portion 2A and the folded portion 2C and joining the 2 nd base material portion 2B and the folded portion 2C.
Thus, the liquid container 1 formed in a ruffled shape is constituted by the bag main body 3 and the spout 40 attached to the upper edge 3a of the bag main body 3. The spout 40 is not necessarily attached to the upper edge 3a of the bag main body 3, and may be attached to the surface of the 1 st base material part 2A or the surface of the 2 nd base material part 2B.
The ruffled liquid storage container 1 configured as described above is compactly folded as described below, and is inserted into a large-sized box-shaped outer container 5 described below through an opening 5 a.
Next, a folded form of the liquid container 1 will be described with reference to fig. 3 to 12.
First, as shown in fig. 3, a ruffled liquid container 1 is prepared.
Next, as shown in fig. 4, a rectangular bottom surface 30 is formed on the bottom portion 3B of the bag body 3.
In this case, first, the bottom portion 3B of the bag body 3 is lifted, the 1 st base material portion 2A side of the bottom portion 3B of the bag body 3 is bent inward via the bending line 2A1, and similarly, the 2 nd base material portion 2B side is bent inward via the bending line 2B 1. In this way, a rectangular bottom surface 30 is formed on the bottom portion 3B of the bag body 3, and the bottom surface 30 includes the bottom edge joining portion 10B described above.
Next, the gusset portion 2C is folded in a triangular shape on the back side of the rectangular bottom surface 30, thereby forming a triangular portion 2C 3.
In fig. 4, the bottom surface 30 includes a1 st base material portion 2A and a2 nd base material portion 2B, the 1 st base material portion 2A being located on the upper side of the paper surface of the bottom edge joint portion 10B in the rectangular bottom surface 30, and the 2 nd base material portion 2B being located on the lower side of the paper surface of the bottom edge joint portion 10B in the rectangular bottom surface 30.
Further, on the back sides of the 1 st base material portion 2A and the 2 nd base material portion 2B constituting the bottom surface 30 of the bag main body, a rim 2C2 (see fig. 4) of the hem portion 2C folded between the 1 st base material portion 2A and the 2 nd base material portion 2B appears.
Next, as shown in fig. 5, on the bottom surface 30, a1 st fixing tape 31 is provided along the bottom edge joint portion 10B, the 1 st fixing tape 31 being used to fix at least the bottom edge joint portion 10B2 of the bottom edge joint portion 10B to each other between the 1 st base material portion 2A and the hem portion 2C and between the 2 nd base material portion 2B and the hem portion 2C. However, the 1 st fixing tape 31 may extend from one end of the bottom edge joint 10b in the bottom surface 30 to the other end along the bottom edge joint 10 b.
By fixing the bottom edge fold joining portion 10b2 with the 1 st fixing tape 31 in this manner, the rectangular shape of the rectangular bottom surface 30 can be reliably maintained.
Next, the bottom surface 30 and the pair of edge folds 2C disposed on both sides of the bottom surface 30 are fixed by the 3 rd fixing tape (3 rd fixing member) 32, and thereby the bottom surface 30 and the pair of edge folds 2C disposed on both sides of the bottom surface 30 are firmly fixed. As described above, the triangular portion 2C3 is formed by folding the hem portion 2C on the back surface of the 1 st base material portion 2A and the 2 nd base material portion 2B constituting the bottom surface 30, but when the bottom surface 30 is fixed to the pair of hem portions 2C disposed on both sides of the bottom surface 30 by the 3 rd fixing tape 32, the liquid does not enter the triangular portion 2C3 formed by folding the hem portion 2C when the liquid is filled into the bag main body 3 after the bag main body 3 of the liquid storage container 1 is inflated.
Next, the liquid container 1 is turned upside down so that the bottom surface 30 faces downward (see fig. 6).
Next, as shown in fig. 7, a rectangular upper surface 35 is formed on the upper portion 3A of the bag body 3.
In this case, first, the upper portion 3A of the bag main body 3 is lifted, the 1 st base material portion 2A side of the upper portion 3A of the bag main body 3 is bent inward via the bending line 2A2, and similarly the 2 nd base material portion 2B side is bent inward via the bending line 2B 2. In this way, a rectangular upper surface 35 is formed in the upper portion 3A of the bag body 3, and the upper surface 35 includes the upper edge joining portion 10b described above.
Next, on the back side of the rectangular upper surface 35, the hem portion 2C is folded in a triangular shape to form a triangular portion 2C 3.
In fig. 7, the upper surface 35 includes a1 st base material portion 2A and a2 nd base material portion 2B, the 1 st base material portion 2A being located on the upper side of the paper surface of the upper edge joint portion 10a in the rectangular upper surface 35, and the 2 nd base material portion 2B being located on the lower side of the paper surface of the upper edge joint portion 10a in the rectangular upper surface 35.
Further, on the back sides of the 1 st base material portion 2A and the 2 nd base material portion 2B constituting the upper surface 35 of the bag main body, a rim 2C2 (see fig. 7) of the hem portion 2C folded between the 1 st base material portion 2A and the 2 nd base material portion 2B appears.
Next, as shown in fig. 8, at the upper surface 35, a2 nd fixing tape 36 is provided along the upper edge joint 10a, the 2 nd fixing tape 36 being used to fix at least the upper edge gusset joint 10a2 between the 1 st base material portion 2A and the gusset 2C and between the 2 nd base material portion 2B and the gusset 2C in the upper edge joint 10a to each other. However, the 2 nd fixing tape 36 may extend from one end of the upper edge joint 10b in the upper surface 35 to the other end along the upper edge joint 10 a.
By fixing the upper edge gusset portion joint portion 10a2 with the 2 nd fixing tape 36 in this manner, the rectangular shape of the rectangular upper surface 35 can be reliably maintained.
Next, the upper surface 35 and the pair of edge folds 2C disposed on both sides of the upper surface 35 are fixed by the 4 th fixing tape (4 th fixing member) 37, and the upper surface 35 and the pair of edge folds 2C disposed on both sides of the upper surface 35 are firmly fixed. As described above, the hem portion 2C is folded between the 1 st base material portion 2A and the 2 nd base material portion 2B constituting the upper surface 35 to form the triangular portion 2C3, but when the upper surface 35 and the pair of hem portions 2C disposed on both sides of the upper surface 35 are fixed by the 4 th fixing tape 37, the liquid does not enter the triangular portion 2C3 formed by folding the hem portion 2C into the bag main body 3 when the liquid is filled into the bag main body 3 after the bag main body 3 of the liquid storage container 1 is inflated.
By fixing the rectangular bottom surface 30 of the bag body 3 with the 1 st fixing tape 31 and the 3 rd fixing tape 32 in this manner, the rectangular shape of the bottom surface 30 can be reliably maintained. In addition, the rectangular shape of the upper surface 35 can be reliably maintained by fixing the rectangular shape of the upper surface 35 with the 2 nd fixing tape 36 and the 4 th fixing tape 37. The 1 st tape 31, the 2 nd tape 36, the 3 rd tape 32, and the 4 th tape 37 function as a1 st fixing member, a2 nd fixing member, a 3 rd fixing member, and a 4 th fixing member, respectively, but are not limited thereto, and an adhesive or an adhesive may be used as the 1 st fixing member, the 2 nd fixing member, the 3 rd fixing member, and the 4 th fixing member.
Therefore, when the liquid container 1 is compactly folded and inserted into the rectangular box-shaped exterior container 5 through the opening 5a and the liquid container 1 is further inflated as described later, the outer shape of the liquid container 1 can be inflated along the inner surface of the rectangular box-shaped exterior container 5 in conformity with the shape of the inner surface. The outer container 5 is not limited to a rectangular box-shaped outer container, and a rectangular box-shaped outer container may be used.
Next, as shown in fig. 9, in the liquid container 1, the upper edge joint portion 10a and the bottom edge joint portion 10b are overlapped, and the upper edge joint portion 10a and the bottom edge joint portion 10b are folded in two as a folding line.
Then, the liquid container 1 folded in two is folded in a bellows shape along the plurality of longitudinal folding lines 15 (see fig. 10 and 11). The liquid container 1 does not necessarily have to be folded into a corrugated shape, but by folding the liquid container 1 into a corrugated shape, the liquid container 1 can be easily expanded within the outer container 5 when inserted into the outer container 5. At this time, when the liquid container 1 is folded at the center line in the width direction perpendicular to the straight line passing through the spout 40 connecting the upper portion and the lower portion of the bag body 3, it is more preferable that the liquid container is folded in a bilaterally symmetrical corrugated shape at both left and right sides by the longitudinal bending lines 15. That is, as shown in fig. 11, by folding in the following manner: the folding directions of the ridges and valleys of the vertical bending line 15 formed on both sides across the center line in the width direction perpendicular to the straight line passing through the spout 40 connecting the upper portion and the lower portion of the bag main body 3 are symmetrical with respect to the same direction, and therefore, when the liquid storage container 1 is inserted into the outer container 5, it can be more easily expanded in the outer container 5.
The longitudinal folding is not limited to the case of folding along the center line, and may be a shape that allows the liquid container 1 to be inserted into the outer container 5 from the opening 5a of the outer container 5, and may not be a bellows-like folding.
Next, as shown in fig. 12, in order to maintain the folded shape of the liquid container 1 folded into a bellows shape along the vertical bending line 15, the liquid container 1 is fixed by a plurality of, for example, two shape retaining portions 17 and 18 provided vertically so as to maintain the shape.
Both the shape retaining portions 17 and 18 maintain the folded shape of the liquid container 1, and when gas is supplied from the spout 40 into the liquid container 1 to bulge the liquid container 1 as described later, the shape retaining portions 17 and 18 are broken and fall off from the liquid container 1. In this case, when gas is supplied into the liquid container 1 from the spout 40, the upper portion of the liquid container 1 first swells, and the upper shape retaining portion 17 breaks and falls off from the liquid container 1, and then the gas is sent to the lower portion of the liquid container 1 to swell the lower portion, and the lower shape retaining portion 18 breaks and falls off from the liquid container 1. As such shape retaining portions 17 and 18, a band-shaped shape retaining portion can be considered, but may be constituted by a rubber-like band-shaped tape or an adhesive. In addition, a detachable and breakable belt is considered. The number of shape retaining portions 17 and 18 may be one, or two or more.
Next, the spout 40 of the liquid container 1 will be described in detail. As shown in fig. 13, the outlet 40 has: a spout mounting portion 50 thermally welded to an upper edge 3a of the bag main body 3; and a spout body 41 connected to the spout attachment portion 50 and protruding outward from the bag body 3, and a spout flange 42 is provided at an upper end of the spout body 41. Further, as shown in fig. 13, the spout 40 is thermally welded between the 1 st base material portion 2A and the 2 nd base material portion 2B at the spout mounting portion 50.
The spout body 41 of the spout 40 is formed of a cylindrical body having a substantially U-shaped cross section, and has a spout flange 42 at the upper end periphery thereof. An opening 44 is formed in the bottom 43 of the spout body 41. The opening 44 can ensure ventilation between the liquid container 1 and an outer container 5 described later, and when the content liquid is to be drawn out during use, gas can be sealed between the liquid container 1 and the outer container 5 through the opening 44, and pressure is applied from the outside of the liquid container 1, thereby smoothly drawing out the content liquid inside the liquid container 1.
The spout flange 42 of the spout 40 is attached to the opening 5a formed in the outer container 5 by a holder 80 described later, and the liquid container 1 is supported in the outer container 5. Further, if the spout 40 can be directly attached to the opening 5a, the holder 80 may not be provided.
Next, the materials of the respective structural members will be described. The spout 40 is preferably manufactured by injection molding. The resin used for this is not particularly limited as long as it is a resin that can be injection molded, but in order to bond the resin constituting the inner surfaces of the 1 st base material portion 2A and the 2 nd base material portion 2B of the bag body 3 by thermal fusion bonding, it is necessary to appropriately select the resin depending on the resin constituting the inner surfaces of the 1 st base material portion 2A and the 2 nd base material portion 2B, and high-density polyethylene that has rigidity even at high temperatures and is not easily embrittled even at low temperatures is generally preferred.
As the material of the bag main body 3, a laminate of unstretched nylon (thickness: 20 μm)20 a/linear low density polyethylene (thickness: 40 μm)20b and linear low density polyethylene (thickness: 70 μm) laminated can be used.
The material of the bag body 3 is not limited to the above.
For example, materials such as low density polyethylene, and linear low density polyethylene can be used as the material of the bag body 3.
As described above, the spout flange 42 of the spout 40 is attached to the opening 5a of the outer container 5 by the holder 80. The holding tool 80 is interposed between the opening 5a and the spout 40, and has the following functions: even if the shape of the opening 5a of the outer container 5 is slightly larger than the outer shape of the spout flange 42, the spout 40 can be reliably attached to the opening 5 a.
The holding fixture 80 is described in detail with reference to fig. 15A to 18.
The holding tool 80 includes: an outer flange 81 engaged with the opening 5a of the outer container 5; and an inner flange 82 coupled to the outer flange 81 via a coupling stepped portion 83 and engaged with the spout flange 42 of the spout 40, and the entire holder 80 is formed in a ring shape having an opening 80 a.
Further, the inner flange 82 of the holding fixture 80 has a substantially annular opening 80 a. The inner flange 82 has a pair of notches 85 and 85 (see fig. 15A and 15B) provided on a straight line passing through the center thereof and facing each other.
The spout 40 of the liquid container 1 is attached to the holder 80 (see fig. 16) configured as described above by passing between the pair of slits 85, but in this case, the spout flange 42 of the spout 40 is formed in an annular shape (circular shape). The spout flange 42 passing between the pair of notches 85 of the holder 80 is locked to the inner flange 82 of the holder 80 (see fig. 16 to 18).
The holding tool 80 is not limited to the holding tool having the above-described configuration, and a holding tool having a structure divided into two parts by a dividing line may be used.
Next, the operation of the present embodiment configured as described above will be described.
First, the liquid container 1 configured as described above, that is, the following liquid container 1 (see fig. 12), is prepared: the upper edge joining part 10a and the bottom edge joining part 10b are overlapped, and the upper edge joining part 10a and the bottom edge joining part 10b are folded in two as a folding line, and are folded along a longitudinal folding line 15, and are fixed by shape retaining parts 17, 18.
Next, as shown in fig. 19, the liquid container 1 is inserted into the outer container 5 through the opening 5a of the outer container 5. In this case, the outer container 5 is a large container made of metal or synthetic resin, has a rectangular box shape, and has a large capacity of, for example, about 1000 l.
Next, the holder 80 is attached to the spout 40 of the liquid container 1 in a state where the spout 40 protrudes outward from the opening 5 a. In this case, as described above, first, as shown in fig. 16, the spout 40 is inclined with respect to the holder 80. In fig. 16, the spout 40 is disposed at an angle of 90 ° with respect to the holder 80.
The spout flange 42 of the spout 40 is then passed through the space extending between the pair of notches 85 of the retaining means 80.
In this case, the length between the pair of notches 85 is larger than the outer diameter of the annular spout flange 42, and therefore the spout flange 42 can smoothly pass through the space extending between the pair of notches 85. At this time, the pouring outlet 40 also passes entirely through the opening 80a of the holder 80.
After the entire outlet port 40 passes through the opening 80a of the holding fixture 80, the outlet port 40 is rotated with respect to the holding fixture 80, and the outlet port 40 is made parallel to the holding fixture 80.
In this case, the minimum inner diameter a1 corresponding to the annular inner diameter of the inner flange 82 is smaller than the maximum outer diameter b1 of the spout flange 42 corresponding to the annular outer diameter, so that the spout flange 42 can be reliably locked to the inner flange 82 of the holder 80.
In this way, an assembly 80A (see fig. 17 and 18) of the spout and the holding tool, which includes the spout 40 and the holding tool 80, can be obtained.
In the above embodiment, the example in which the holder 80 is attached to the spout 40 after the liquid container 1 is inserted into the outer container 5 is shown, but the present invention is not limited thereto, and the liquid container 1 may be inserted into the outer container 5 after the holder 80 is attached to the spout 40. In addition, the holding tool 80 need not be used.
Next, an assembly 80A of the spout and the holder, which has the spout 40 and the holder 80, is attached to the opening 5a of the outer container 5. In this case, the outer flange 81 of the holder 80 engages with the opening 5a of the outer container 5 (see fig. 20 and 21).
Although a large synthetic resin container in a rectangular parallelepiped shape can be used as the outer container 5 shown in fig. 19, a metal sealed can (a canister), a synthetic resin drum, or a metal container can be used as the outer container 5, and the outer container is not limited to the rectangular parallelepiped shape described above, and a cubic outer container can be used.
Next, an inflation tool (not shown) is attached to the spout 40 of the liquid container 1, and nitrogen gas or clean dry air is supplied into the liquid container 1 using the inflation tool, so that the bag body 3 of the liquid container 1 is inflated in the outer container 5.
Next, the function of causing the liquid container 1 to bulge inside the outer container 5 will be described below.
As described above, the bag main body 3 is inflated by supplying nitrogen gas or clean dry air into the liquid container 1 using the inflation tool. In this case, first, a gas such as nitrogen gas or clean dry air is supplied into the liquid container 1 from the spout 40. At this time, first, the upper portion of the liquid container 1 is swollen by the gas, and the upper shape retaining portion 17 is broken and detached from the liquid container 1. Then, the gas is transported from the upper portion to the lower portion of the liquid container 1, and the shape retaining portion 18 below is broken. Thus, the bag body 3 of the liquid container 1 folded along the longitudinal bending line gradually bulges.
Next, the bottom surface 30 of the bag body 3 drops while maintaining the rectangular shape, and comes into contact with the bottom of the outer container 5. Thereafter, the bag body 3 gradually bulges between the upper surface 35 and the bottom surface 30 while maintaining the shapes of the rectangular bottom surface 30 and the rectangular upper surface 35.
In this case, the bag body 3 is configured in the following manner: between the rectangular upper surface 35 and the rectangular bottom surface 30, the bag main body 3 expands in a rectangular parallelepiped shape along the inner surface of the box-shaped exterior container 5, and the outer shape of the liquid container 1 in the box-shaped exterior container 5 follows the inner surface of the box-shaped exterior container 5.
In the present embodiment, the liquid container 1 is folded into a corrugated shape and fixed by the pair of shape retaining portions 17 and 18 provided above and below, but such a case is also conceivable: in the case where the shape retaining portions 17 and 18 are not provided, the gas supplied into the liquid container 1 is directly sent to the lower portion, and the upper portion is less likely to bulge, so that the liquid container 1 bulges unevenly. If the liquid container 1 is unevenly swollen, a desired amount of liquid cannot be filled into the bag main body 3. According to the present embodiment, after the liquid container 1 is folded into a corrugated shape, the upper and lower portions thereof are fixed by the pair of shape retaining portions 17 and 18, and thus the gas supplied into the liquid container 1 is sequentially sent from the upper portion to the lower portion, and the bag body 3 of the liquid container 1 can be gradually and uniformly bulged from the upper portion to the lower portion in sequence and as a whole. This enables a desired amount of liquid to be filled in the bag body 3.
However, the pair of shape retaining portions 17 and 18 need not be provided.
As described above, according to the present embodiment, the liquid container 1 inserted into the rectangular box-shaped exterior container 5 through the opening 5a can be easily and reliably raised in conformity with the shape of the inner surface of the exterior container 5. Therefore, the liquid can be filled into the liquid container 1 by effectively utilizing the inside of the liquid container 1 that bulges in conformity with the shape of the inner surface of the outer container 5.
In this way, a combination of the outer container 5 and the liquid container 1 was obtained. Thereafter, the inflation tool is detached from the spout 40, a content liquid filling machine (not shown) is attached to the spout 40, and the content liquid is filled into the liquid container 1 from the content liquid filling machine.
After the liquid container 1 is filled with the internal solution, the spout cap is attached to the spout 40.
Subsequently, the holder 80 is detached from the spout 40. In this case, the holding tool 80 is detached from the spout 40 in a reverse procedure to the above procedure for attaching the holding tool to the spout 40.
Since the inner diameter of the opening 5a of the outer container 5 is larger than the outer diameter of the spout flange 42 of the spout 40, the spout 40 drops into the outer container 5 through the opening 5a when the holder 80 is detached from the spout 40.
Next, the opening cap 5A is attached to the opening 5A of the outer container 5, and the outer container 5 is completely sealed.
Next, the outer container 5 with the opening cap 5A attached to the opening 5A is conveyed to a conveyance destination.
Next, after the outer container 5 is conveyed to the conveyance destination, the opening cap 5A is removed from the opening 5A of the outer container 5.
Then, the spout cap is removed from the spout 40 attached to the opening 5a of the outer container 5.
Next, an outlet upper member 70 is attached to the inside of the outlet body 41 of the outlet 40 attached to the opening 5a of the outer container 5, and the liquid distribution nozzle 60 is held by the outlet upper member 70 by screwing in advance (see fig. 20 and 21).
The liquid distribution nozzle 60 inserted into the spout upper member 70 extends into the bag body 3 of the liquid container 1 through the through hole 45 of the spout 40.
Then, the content liquid in the liquid container 1 is discharged to the outside. In this case, the liquid dispensing nozzle 60 is connected to the dispenser via a connection pipe 63.
Next, nitrogen gas is supplied from a pressurized gas source (not shown) into the spout body 41 of the spout 40, and then enters the space between the outer container 5 and the bag body 3 of the liquid container 1 through the opening 44. Then, the bag body 3 is pressed from the outside by the nitrogen gas, the content liquid in the bag body 3 enters the liquid distribution nozzle 60, and the content liquid in the liquid distribution nozzle 60 is then discharged from the connection pipe 63 to the distributor side. Alternatively, a suction pump (not shown) may be connected to the spout 40 and the discharge may be performed by the suction pump. At this time, although the bag body 3 collapses while being discharged, the outer container 5 does not deform or the like even if it is not a pressure-resistant container because the outside of the bag body 3 is maintained at atmospheric pressure.
In the above-described embodiment, the following example is shown: the liquid container 1 may be inflated inside the outer container 5 by supplying nitrogen gas or a clean dry gas into the liquid container 1 after the liquid container 1 is inserted into the outer container 5, but the present invention is not limited thereto, and the liquid container 1 may be filled with the content liquid while inflating the liquid container 1 by directly filling the liquid container 1 with the content liquid from a content liquid filling machine after the liquid container 1 is inserted into the outer container 5.
In this case, when the liquid container 1 in the external container 5 is filled with the content liquid, the content liquid is first conveyed downward of the liquid container 1 by its own weight, and gradually rises from the lower portion while forming the rectangular bottom surface 30 of the bag body 3. In correspondence with the swelling of the lower portion, if the lower shape retaining portion 18 is provided, the shape retaining portion 18 is broken. In this way, the bag body 3 of the liquid storage container 1 folded along the longitudinal folding line gradually bulges from the lower portion to the upper portion, thereby forming the rectangular upper surface 35 of the bag body 3.
When a predetermined amount of the content liquid is filled into the bag main body 3, the bottom surface 30 of the bag main body 3 drops while maintaining the rectangular shape and comes into contact with the bottom of the outer container 5. Then, the bag body 3 gradually bulges between the upper surface 35 and the bottom surface 30 while maintaining the shapes of the rectangular bottom surface 30 and the rectangular upper surface 35.
In this case, the bag body 3 is configured to: between the rectangular upper surface 35 and the rectangular bottom surface 30, the bag main body 3 expands in a rectangular parallelepiped shape along the inner surface of the rectangular box-shaped outer container 5, and the outer shape of the liquid container 1 in the box-shaped outer container 5 follows the inner surface of the box-shaped outer container 5.
As described above, according to the present embodiment, the liquid container 1 inserted into the rectangular box-shaped exterior container 5 through the opening 5a can be easily and reliably inflated in conformity with the shape of the inner surface of the exterior container 5, and the liquid container 1 can be effectively used to fill the liquid container 1 with the content liquid in the liquid container 1 inflated in conformity with the shape of the inner surface of the exterior container 1. In this case, in short, the bag main body 3 is formed in the shape of the rectangular bottom surface 30 and the rectangular upper surface 35 with the content liquid, and the content liquid can be filled into the liquid storage container 1 while reliably bulging the liquid storage container 1.
Description of the reference symbols
1: a liquid container; 2A: the 1 st base material part; 2B: a2 nd base material portion; 2C: a hem portion; 2C 1: a tuck-in portion; 2C 2: a rim; 2C 3: a triangular portion; 3: a bag body; 3A: an upper portion; 3B: a bottom; 3 a: an upper edge; 3 b: a bottom edge; 3 c: a skirt; 5: an outer container; 5 a: an opening part; 10: a joint portion; 10 a: an upper edge engagement portion; 10a 1: an upper edge main body engagement portion; 10a 2: an upper edge gusset junction; 10 b: a bottom edge joint; 10b 1: a bottom rim body engagement portion; 10b 2: a bottom edge fold junction; 17: a shape-retaining portion; 18: a shape-retaining portion; 30: a bottom surface; 31: 1, fixing a belt; 32: a 3 rd fixing belt; 35: an upper surface; 36: a2 nd fixing belt; 37: a 4 th fixing belt; 40: an injection port; 41: an injection port body; 42: an injection port flange; 50: an injection port mounting part; 60: a liquid dispensing nozzle; 70: an injection port upper member; 80: a holding device; 80 a: an opening; 80A: a combination of an outlet and a holding means; 81: an outboard flange; 82: an inboard flange.

Claims (11)

1. A liquid container which is inserted into an outer container from an opening of the outer container,
the liquid container includes:
a bag main body having a1 st base material portion, a2 nd base material portion, and a pair of hem portions provided on both sides of the 1 st base material portion and the 2 nd base material portion; and
an injection port provided to the bag main body,
the bottom of the bag main body has a bottom edge joint portion, a rectangular bottom surface including the bottom edge joint portion is formed on the bottom of the bag main body,
an upper edge joint part is arranged at the upper part of the bag main body, a rectangular upper surface including the upper edge joint part is formed at the upper part of the bag main body,
a portion of the bag main body between the upper surface and the bottom surface is folded with the upper edge joint portion and the bottom edge joint portion being brought close so that the upper surface and the bottom surface face in opposite directions to each other,
a1 st fixing member is provided on the bottom surface, a2 nd fixing member is provided on the upper surface,
the bottom edge joint has: a bottom edge body joining portion formed by joining the 1 st base material portion and the 2 nd base material portion; and a bottom edge fold joining portion that joins the 1 st base material portion and the edge fold and joins the 2 nd base material portion and the edge fold, the 1 st fixing member fixing the bottom edge fold joining portions to each other,
the upper edge joint portion has: an upper edge main body joining part formed by joining the 1 st base material part and the 2 nd base material part; and an upper edge gusset portion joining portion that joins the 1 st base material portion and the gusset portion, and the 2 nd base material portion and the gusset portion, the 2 nd fixing member fixing the upper edge gusset portion joining portions to each other.
2. The liquid containment vessel of claim 1,
the bottom surface and the pair of edge folds arranged on both sides of the bottom surface are fixed by a 3 rd fixing member, and the upper surface and the pair of edge folds arranged on both sides of the upper surface are fixed by a 4 th fixing member.
3. The liquid containing vessel according to claim 1 or 2,
the liquid container is folded in half with the upper edge joint portion and the bottom edge joint portion as a fold line.
4. The liquid containment vessel of claim 3,
the liquid receiving container is folded along a longitudinal fold line.
5. The liquid containment vessel of claim 4,
the liquid container is folded in a corrugated shape along the longitudinal bending line.
6. The liquid containing vessel according to claim 4 or 5,
the liquid container has a shape retaining portion provided to maintain a folded shape of the liquid container.
7. A method of using a liquid container, comprising the steps of:
preparing a liquid container according to any one of claims 1 to 6; and
the liquid container is inserted into the outer container from the opening in a folded state.
8. The method of using a liquid containment vessel according to claim 7,
the method for using the liquid container further includes the steps of: and supplying a gas into the liquid container from the outlet of the liquid container to swell the liquid container in the outer container.
9. The method of using a liquid containment vessel according to claim 8,
the method for using the liquid container further includes the steps of: filling the content liquid into the liquid container bulging in the outer container from the pouring port.
10. The method of using a liquid containment vessel according to claim 7,
the method for using the liquid container further includes the steps of: the content liquid is supplied into the liquid container from the spout of the liquid container, and the content liquid is filled into the liquid container while the liquid container is being swelled inside the outer container.
11. A combination of a liquid container and an exterior container, comprising:
an outer container having an opening; and
a liquid container inserted from the opening,
the liquid container includes:
a bag main body having a1 st base material portion, a2 nd base material portion, and a pair of hem portions provided on both sides of the 1 st base material portion and the 2 nd base material portion; and
an injection port provided to the bag main body,
the bottom of the bag main body has a bottom edge joint portion, a rectangular bottom surface including the bottom edge joint portion is formed on the bottom of the bag main body,
an upper edge joint part is arranged at the upper part of the bag main body, a rectangular upper surface including the upper edge joint part is formed at the upper part of the bag main body,
a portion of the bag main body between the upper surface and the bottom surface is folded with the upper edge joint portion and the bottom edge joint portion being brought close so that the upper surface and the bottom surface face in opposite directions to each other,
a1 st fixing member is provided on the bottom surface, a2 nd fixing member is provided on the upper surface,
the bottom edge joint has: a bottom edge body joining portion formed by joining the 1 st base material portion and the 2 nd base material portion; and a bottom edge fold joining portion that joins the 1 st base material portion and the edge fold and joins the 2 nd base material portion and the edge fold, the 1 st fixing member fixing the bottom edge fold joining portions to each other,
the upper edge joint portion has: an upper edge main body joining part formed by joining the 1 st base material part and the 2 nd base material part; and an upper edge gusset portion joining portion that joins the 1 st base material portion and the gusset portion, and the 2 nd base material portion and the gusset portion, the 2 nd fixing member fixing the upper edge gusset portion joining portions to each other.
CN201880052601.3A 2017-06-14 2018-06-13 Liquid container, method of using liquid container, and assembly of liquid container and outer container Active CN110997518B (en)

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WO2018230598A1 (en) 2018-12-20
JP7192641B2 (en) 2022-12-20
TW201919960A (en) 2019-06-01
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CN110997518A (en) 2020-04-10

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