JPH10101135A - Covering container for fluid packaged in bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify handling of a flexible bag and prevent a fluid in the bag from overflowing from the unsealing part of the bag, by providing an opening to expose the corners of the bag at the upper half part of a box body and making it possible to develop the box body around a vertical imaginary plane including a diagonal line in the horizontal section. SOLUTION: A box body A is constituted of nearly trianglecolumnar parts 1, 2 forming the body, nearly symmetrically shaped. These rotate in the direction that respective ridges get close or apart mutually around a hinge. An opening 3 from which the corners of the bag are exposed is provided at the side face of the upper half part of the box body A. In this way, as the box body is constituted to develop around a vertical imaginary plane, a deformable bag can be easily contained to correspond to the shape of the box body A. Since a part of the bag protruded from the opening 3 is cut off and opened, the unsealed part is exposed to the side of the box body and since it is positioned at a certain constant level, the fluid is prevented from overflowing from the unsealed part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer container for a liquid material packed in a bag, and more particularly to a method for easily handling a liquid material such as a beverage filled in a flexible bag made of polyethylene film or the like. The present invention relates to a mantle container capable of performing the following.

[0002]

2. Description of the Related Art Most soft drinks such as fruit drinks and mineral water are filled in relatively rigid containers such as so-called PET bottles made of polyethylene terephthalate. Packaging with rigid containers can enhance the design,
The required strength in the distribution process can be ensured and the handleability is excellent. On the other hand, plastic materials used for PET bottles, etc.
Although it is preferable to reuse it, there is a problem of cost and the like, and at present it is not sufficiently recycled.

[0003] For the above-mentioned beverages and the like, bag packaging using a flexible packaging material such as a polyethylene film is being studied. Up to now, bag packaging of a fluid has been mainly used for refill products such as liquid soaps and foodstuffs, and is a packaging form for the purpose of reducing packaging costs. In bag packaging, by appropriate selection of materials and bag forming methods, packaging costs can be reduced, strength in the distribution process can be sufficiently ensured, and recycling can be performed at low cost.

[0004]

However, in bag packaging, if the filled fluid (contents) is not to be used after being divided into small portions, the contents easily overflow once opened, which is inconvenient for handling and storage. Therefore, the contents are usually transferred to a rigid container after opening and used. Therefore, it is extremely inconvenient compared to packaging using a rigid container such as a PET bottle. Furthermore, beverages filled in bags, etc.
When transferred to another container or the like, there is a problem such as propagation of various bacteria in the transferred other container, which is not preferable from the viewpoint of hygiene.

[0005] The present invention has been made as a result of various studies to further enhance the advantages of packaging a fluid using a bag made of polyethylene or the like, and an object of the present invention is to simplify the fluid filled in a flexible bag. It is an object of the present invention to provide a bag-packed fluid envelope that can be handled, in particular, beverages and the like in a sanitary manner.

[0006]

In order to solve the above-mentioned problems, an outer container according to the present invention is a jacket container for accommodating a fluid filled in a flexible bag having a substantially flat rectangular shape together with the bag. A rectangular box having a substantially rectangular horizontal cross section, the upper half of the box having an opening through which the corner of the bag protrudes, and the box having a rectangular horizontal cross section. It is characterized in that it can be developed around a vertical virtual plane including two diagonals.

That is, in the above-mentioned mantle container, a box configured to be deployable around a specific virtual plane is:
When storing a flexible material (package) filled in a flexible bag, the box can be opened to the maximum extent. The box is
The above-mentioned packaged goods are accommodated according to the box body, and the opening is
Protrude the corner of the bag. Therefore, when the above-mentioned corners protruding from the opening are cut off and opened in a state where the box is standing, the opening provided in the upper half of the box uses the opening portion as the mouth of the bag as a box. It protrudes to the side of the body and is located at a substantially constant height. The box of a specific shape is handled so that the side surface thereof is gripped.

In the above-mentioned outer container, when an ear-shaped seal portion protrudes from at least one side edge of the bag, a clamping means for clamping the seal portion of the bag is provided at the top of the box. Preferably, such a pinching means functions to hang the bag and prevents the bag in which the remaining amount of the fluid is reduced from bending in the box.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a fluid-wrapped envelope packaged in a bag according to the present invention. FIG.
FIG. 2 is a perspective view showing the overall shape of the mantle container as viewed from the front side. FIG. 2 is a development view showing the inside of the mantle container viewed from a diagonal direction. 3 to 5 are views each showing an appearance of the mantle container, FIG. 3 is a front view in a closed state, FIG. 4 is a left side view in a closed state, and FIG. 5 is a top view in a closed state. FIG. 6 is an exploded view similar to FIG. 2 of the upper portion of the outer container showing another embodiment of the bag holding means. FIG. 7 is a perspective view showing a fluid (package) filled in a bag.

As shown in FIG. 7, the outer container of the present invention is a fluid filled in a flexible bag (80) having a substantially flat rectangular shape, that is, a packaged fluid (hereinafter referred to as a packaged product). A fluid container as indicated by reference numeral (8) is stored together with a bag (80), and as shown in FIG. 1, is configured as a vertically long box (A) having a substantially rectangular horizontal cross section. You. As shown in FIGS. 1 and 2, the side of the upper half of the box (A) is provided with an opening (3) through which the corner of the bag (80) protrudes. It is configured to be deployable around a vertical imaginary plane including one diagonal line in the rectangular horizontal section.

In the present invention, as the material of the bag (80), an appropriate material capable of filling and packaging a fluid is selected, and a film made of synthetic resin for a bag is usually used. Such a bag film is selected in consideration of the pressure resistance, that is, the value of the bag breaking load when a liquid fluid or the like is filled and packaged to form a bag package. Examples of the bag film include a multilayer film containing a low-density polyethylene resin obtained by copolymerizing ethylene and a specific α-olefin in a layer structure.

In the case of a multilayer film, the base film may be a polypropylene film (PP), a nylon (N
Y), polyethylene terephthalate film (PE
T), ethylene-vinyl alcohol copolymer (EVO
H), polyvinyl alcohol (PVA), and other films, as well as vinylidene chloride coated films.

[0013] In particular, a film based on nylon and polyethylene is preferable because it has excellent bag forming properties and can be easily recycled. Examples of the fluid to be filled and packaged in the bag (80) made of the above-mentioned materials include powders, granules, liquids mainly composed of liquids, and liquids. The filling amount of the fluid is usually about 60 to 90% of the maximum filling amount of the bag (80) in consideration of the pressure resistance of the bag (80).

The above-mentioned fluid is pillowed, for example, by a well-known filling and packaging machine using the bag film as described above. Pillow packaging forms a cylindrical film by bending both side edges of a continuously supplied band-shaped film, overlapping at substantially the center in the width direction and heat-sealing, and then heats the sheet perpendicular to the continuous direction of the cylindrical film. An operation of sealing and filling an object to be packaged (fluid) is continuously performed, and then, substantially the center of a seal portion formed orthogonal to the continuous direction of the film is divided. As a result, as shown in FIG. 7, a substantially flat square shape having a center seal portion at the center on one surface side, and ear-shaped seal portions projecting at upper and lower side edges perpendicular to the center seal portion. Package is obtained.

As a bag forming method, a three-way seal including the above-mentioned pillow wrapping is generally used, but a two-side seal in which the upper and lower ends are heat-sealed using a cylindrical film in advance, and two films are laminated. For example, a four-way seal that heat seals around the four sides may be used. Regardless of which bag forming method is adopted, in consideration of the strength in transport and the packing efficiency, etc., a substantially flat rectangular bag is used as the above-mentioned bag for the fluid, particularly as shown in FIG. An ear-shaped seal portion (82) having a substantially flat rectangular shape and at least one side edge thereof;
The overhanging bag (80) is preferably used. In FIG. 9, reference numeral (82) indicates a center seal portion of the bag (80). The specification of the fluid (8) is, for example, when filling and packaging 2 liters of soft drink, the film of the bag (80) is basically made of stretched nylon / low density polyethylene / linear low density polyethylene. A film having a thickness of 70 to 120 μm included in the configuration is used, and the external dimensions are 90 to 120 m.
mx 300-350 mm x 35-45 mm (thickness).

Box (A) Constituting Outer Container of the Present Invention
Can be formed of various materials such as paper, light metal such as aluminum, carbon fiber impregnated plastic, and composite material in which alumina fiber mat is impregnated with aluminum, as long as it can exhibit appropriate rigidity. From the viewpoint of lightness and durability, it is usually formed as a resin molded product using a plastic material.

Specific examples of the plastic material include:
Examples include thermoplastic resins such as polyolefin resins such as polyethylene, polypropylene, and polybutene; polyolefin copolymer resins; polystyrene resins; acrylonitrile-styrene resins; acrylonitrile-styrene-butadiene resins; and polyvinyl chloride resins. Polyolefin resins such as polypropylene resins are relatively inexpensive and can be used preferably. Known foaming agents may be added to these plastic raw materials,
Various known fillers may be included.

The box body (A) is usually injection-molded integrally with the plastic material as described above. Explaining the outer shape of the box (A) shown in FIG. 1, the trunk of the box (A)
It is formed in a cylindrical shape having a substantially rectangular parallelepiped outer shape,
The head of the box (A) has a shape that is inclined toward the center, that is, a shape whose cross-sectional area decreases toward the upper end. In other words, when viewed from the side, the box (A)
Is formed in a substantially trapezoidal shape only at the upper part of the four side surfaces.

The outer dimensions of the box (A) are, for example,
When applied to a liter of fluid (80), the frontage is 90
It is about 120 mm, the depth is about 70-100 mm, and the height is about 280-310 mm. In this case, the thickness (plate thickness) of the box body (A) is about 1 to 3 mm for a thick part and about 0.5 to 2 mm for a thin part except for a specific rib or the like. As described above, the box body (A) has a body formed in a rectangular cylindrical shape, and thus, for example, a compactly accommodated amorphous fluid (8) formed by filling and packaging soft drinks and the like. In addition, the box itself can be efficiently stored in a refrigerator or the like.

More specifically, as shown in FIGS. 1 and 2, the box body (A) has a substantially triangular prism shape and a substantially symmetrically formed main body forming parts (1), ( 2). As shown in FIGS. 1 to 3, the main body forming portion (1) forms a part of the front, right side, and part of the head of the box (A). The main body forming portion (1) includes a ridge portion (11a) having an appropriate radius of curvature as a meeting portion (corner portion) between a front surface and a right side surface of the box body (A), and a front side of the box body (A). Ridges (11b), (11b) constituting the edge and the side edge on the right side
c) and a top rib (1) having a triangular planar shape.
3). The ridges (11a) and (11b) functioning as pillars of the box (A) are continuous from the lower half to the upper half of the main body forming part (1), and are ridges (11c) that are open / close parts.
The upper half is cut off.

On one side surface of the main body forming portion (1) constituting the right side surface of the box (A), ridges (11a), (11b) are provided at the boundary between the upper half and the lower half and on the bottom side. ) Are respectively provided with beam portions (14b) and (15b). In the upper half of the one side, the ridges (11a) and (11b), the top rib (13), and the beam (1) are provided.
4b) is defined as an opening (41), and in the lower half, the portion surrounded by the ridges (11a) and (11b) and the beams (14b) and (15b) is defined as a plate surface ( 12b).

On the other side of the main body forming portion (1) constituting the front surface of the box (A), ridges (11a), (11c) are provided at the boundary between the upper half and the lower half and on the bottom side. ) Are respectively provided with beam portions (14c) and (15c). In the upper half of the other side surface, a portion surrounded by the ridge (11a), the top rib (13), and the beam (14c) is a notch forming an opening (3) described later. In the lower half, a ridge (11a),
The portion surrounded by (11c) and the beam portions (14c) and (15c) is a plate surface portion (12c).

As shown in FIGS. 1, 2 and 4, the other main body forming portion (2) forms the left side, the back, a part of the head, and the bottom of the box (A). I have. Similarly to the above-described main body forming portion (1), the main body forming portion (2) includes a ridge (2) as a meeting portion (projecting corner portion) between the left side surface and the back surface of the box body (A).
1a), ridges (21b) and (21c) constituting the rear side edge and the left side edge of the box body (A), and a top rib (23) having a triangular planar shape. It has. The ridges (21a) and (21b) are formed in the main body forming part (2).
The ridge (2) that is continuous from the lower half to the upper half
1c) The upper half is notched.

On one side surface of the main body forming portion (2) constituting the back surface of the box (A), similarly to the main body forming portion (1), a beam portion (21a) continuous with the ridge portions (21a) and (21b). 24
b) and (25b) are provided. Then, the ridges (21a) and (21b), the top rib (23) and the beam (2)
4b) is defined as an opening (42), and the ridges (21a) and (21b) and the beam (24b)
(25b) and the plate surface portion (22b)
It has been.

Further, on the other side surface of the main body forming portion (1) constituting the left side surface of the box (A), ridges (21a),
Beam portions (24c) and (25c) continuous with (21c) are provided, respectively. The portion surrounded by the ridge (21a), the top rib (23), and the beam (24c)
It is a notch forming an opening (3) to be described later, and includes ridges (21a) and (21c) and beams (24c) and (25).
c) is a plate surface portion (22c).

That is, in the box (A) composed of the main body forming portions (1) and (2), the ridges (11a), (11b), (11c) and the ridges ( 21a), (21b), and (21c) form a pillar structure. In order to support the load of the stored fluid (8), a bottom portion (29) is formed on one of the main body forming portions (2) (see FIG. 2). ) Are integrally formed, and the main body forming portion (1)
A wall structure is formed on the four side surfaces of the box body (A) by the lower half portion of the main body forming portion (2) and the lower half portion. As shown in FIGS. 1 and 2, the bottom (29) constituting the bottom of the box (A) is provided with a hakama (29r) as a rib along the periphery of the bottom for reinforcement. Attached to the side.

In the upper half of the box body (A), as described above, the openings (41) and (42) provided in the main body forming portions (1) and (2), respectively, Department (1)
An open structure is constituted by the notches described above in (2). From the viewpoint of reducing the weight of the box body (A), it is preferable to have a structure in which each side is opened as shown in the figure, but in the outer container of the present invention,
At least one opening is provided to properly expose the corners of the flat fluid (8). In the illustrated envelope, an opening (3) is formed by the notches of the ridges (11c) and (21c) on the front and left sides of the box (A).

The two main body forming portions (1) and (2) constituting the box (A) are connected to each other via a hinge (5) as shown in FIGS. Hinge part (5)
Is a flexible portion that is formed particularly thin when forming the main body forming portions (1) and (2), and the ridge portions (11b) and (21)
b) are integrally formed in a connected state. Thereby, the main body forming part (1) and the main body forming part (2) are connected to the hinge part (5).
The ridge portion (11c) and the ridge portion (21c) rotate in a direction approaching and moving away from each other about.

The locking means for the two main body forming portions (1) and (2) is constituted by a hook (27) and a hook (28) as stoppers shown in FIGS. The hanging piece (27) is attached to the top rib (23) of the main body forming part (2). The hooking piece (27) is formed to be rotatable up and down while extending from the top rib (23) through a thin hinge portion, and has a convex hooking portion on the periphery on the distal end side. And it engages with the convex part (17) as a hooked part which is formed on the top rib (13) of the main body forming part (1) and has a groove provided on the outer periphery.

The hook piece (28) is provided near the bottom of the ridge (21c) of the main body forming portion (2). The hanging piece (28) is connected to the ridge (21c) via a thin hinge.
It is formed so as to be rotatable in the horizontal direction in a state of being extended from the front end, and has a convex engaging portion on the peripheral edge on the distal end side. Then, it engages with a convex portion (18) as a hooked portion formed near the bottom of the ridge (11c) of the main body forming portion (1) and having a groove provided on the outer periphery.

In the outer container of the present invention, as shown in FIG. 1 and FIG. 5, the bag (80) is closed on the top of the box (A) with the two main body forming parts (1) and (2) closed. ) Is provided with a holding means (6) for holding the seal portion (82).
As shown in FIG. 2, the holding means (6) is constituted by opposed inner side surfaces of the top ribs (13) and (23) provided on the main body forming portions (1) and (2), respectively. You.

That is, when the main body forming portions (1) and (2) are closed and locked by the above-mentioned locking means, the top rib (13) and the top rib (23) are closed between the ribs. ) Of the seal portion (82),
The bag (80) housed in the box (A) is held in a suspended state. Such a holding means (6) effectively prevents the bag (80) from bending downward inside the box (A). In addition, the holding means (6) holds the sealing portion (8
When 2) is slid, the function of opening and closing the opening portion (mouth of the bag) of the bag (80) is exhibited. In order to increase the holding force, each side surface of the top ribs (13) and (23) may be subjected to embossing or provided with a large number of minute projections.

The mantle container of the present invention is used as follows.
First, as shown in FIG. 2, after opening the main body forming portions (1) and (2) constituting the box body (A), a fluid (8) as shown in FIG. 8 is stored without opening. . At that time, the main body forming parts (1) and (2) are connected via the hinge part (5),
Since the container (A) is configured to be able to be developed around a vertical virtual plane including one diagonal line in a horizontal cross section of the box (A), the fluid (8) which can be sufficiently opened and is easily deformed is put into the box (A). ) Can be easily accommodated according to the shape of ()).

When storing the fluid (8), one seal (82) of the bag (80) is connected to the top rib (13).
Or, the main body forming portions (1) and (2) are closed along the inner side surface of (23), and the sealing portion (82) is sandwiched between them, and the locking pieces (27) and (28) ) Is used to lock the main body forming portions (1) and (2). As a result, the corners of the bag (80) protrude from the upper part of the ridges (11c) and (21c) and the upper part of the ridges (11b) and (21b), respectively, and A part of the bag (80) connected to one of the corners can be protruded from the opening (3) formed by the cutout of the main body forming portions (1) and (2).

When the filled fluid (contents) is to be taken out, the container is handled in an upright state as shown in FIG.
When the box (A) is in the upright state, the rigid box (A) supports the load of the fluid (8) mainly by the bottom surface (19) and the wall structure of the lower half. And the box (A)
Is a part of the fluid (8) that is appropriately deformed,
The liquid (8) is efficiently stored. Further, since the main body forming portions (1) and (2) are locked by the locking pieces (27) and (28) as stoppers, it is possible to prevent accidental opening due to the load of the fluid (8). Can be done.

When opening the bag (80), the ridge (11)
c) The corners of the seal portion (82) protruding from the mating portion of (21c) and the bag (8) protruding from the opening (3).
0) is cut off and opened (the cut position is indicated by a dashed line in FIG. 1). In that case, the box (A) holds the fluid (8) without deformation itself, and the opening (3) provided in the upper half of the box (A) is 8
The bag (8) formed by cutting off the corner of (0)
The opening portion as the mouth of 0) is protruded to the side of the box body (A) and positioned at a substantially constant height. Therefore, the bag (80)
There is no overflow of fluid from the opening.

To take out the fluid, the container (A) is held and tilted. At this time, the box (A) having a specific shape is handled in a state where its side surface, particularly the lower half, is gripped. As a result, the flexible bag (80) can be easily used as it is, as in the case where the fluid is filled and packaged in a rigid container. Therefore, according to the mantle container of the present invention, the bag (8
There is no need to refill the fluid filled in 0) into another container, and particularly, beverages and the like can be handled in a sanitary manner.

Further, in the mantle container of the present invention, the holding means (6) provided on the top of the box (A) holds the bag (80) with the main body forming parts (1) and (2) closed. It functions to hang and prevents the bag (80) in which the remaining amount of the fluid is reduced from bending in the box (A). Therefore, even when the remaining amount of the fluid becomes small, it is possible to prevent the fluid from overflowing from the opened portion of the bag (80), and to take out the fluid from the bag (80) without waste. Can be done.

The holding means (6) is provided with a bag (8).
It also functions as a clip that opens and closes the unsealed portion of 0).
That is, as shown in FIG. 1, when the corner of the bag (80) protruding from the opening (3) is opened, the holding means (6) moves the sealing portion (6) in the direction of the arrow (C). The opening of the bag (80) is closed by sliding the bag (80), and the holding means (6) slides the sealing portion (82) in the direction of the arrow (O) to move the bag (80). )
Open the opened part of. That is, in the envelope of the present invention, the bag (80) once opened can be temporarily sealed, and when the opened bag (80) is moved together with the envelope, the fluid overflows. Can be prevented.

According to the jacket of the present invention, as described above,
Although it can be applied to various bag-packed fluids that are inflexible and inconvenient to handle, it is particularly suitable when the bag-packed liquid is used without refilling. Above all,
When the fluid is soft drink, it is more preferable because there is no problem such as propagation of various bacteria due to refilling. Examples of soft drinks include carbonated drinks, fruit drinks, frozen fruit drinks, mineral spring water, and soft drinks such as coffee, cocoa, black tea, tea, and lactic acid drinks. Further, pure drinking water separated and purified by a separation technique such as pervaporation and reverse osmosis vaporization may be mentioned.

In the outer container of the present invention, as shown in FIG. 6, the holding means illustrated includes a top rib (23),
A projection (64) and a hole (63) in which the projection is fitted are formed in (13), respectively, and the projection (64) is inserted into a small hole of the seal portion (82) formed before the bag (80) is formed. It may be configured to be inserted. Further, as a method for holding the seal portion (82) of the bag (80), the above-described holding means is used, and the seal portion (82) which is protruded upward from the top of the box (A) and bent. May be held down by the hanging piece (27).

[0042]

As described above, according to the outer container of the present invention, a flexible bag that is easily deformed can be used as it is, as in the case of filling and packaging in a rigid container. Further, since it is not necessary to refill the fluid in another container, it is possible to handle beverages and the like in a sanitary manner. Furthermore, when the holding means is provided at the top of the box, the bag can be prevented from bending in the box,
Even when the remaining amount of the fluid becomes small, the fluid can be prevented from overflowing from the opened portion of the bag, and the fluid in the bag can be taken out without waste.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall shape of a mantle container as viewed from the front side.

FIG. 2 is a development view showing the inside of the mantle container viewed from a diagonal direction.

FIG. 3 is a front view of the mantle container in a closed state.

FIG. 4 is a left side view of the mantle container in a closed state.

FIG. 5 is a top view of the mantle container in a closed state.

FIG. 6 is a development view similar to FIG. 2 of the upper part of the outer container showing another mode of the bag holding means.

FIG. 7 is a perspective view showing a fluid (package) filled in a bag.

[Explanation of symbols]

 1: body forming portion 11a: ridge portion 11b: ridge portion 11c: ridge portion 13: top rib 14b: beam portion 14c: beam portion 15b: beam portion 15c: beam portion 2: body forming portion 21a: ridge portion 21b: ridge portion 21c: Ridge 23: Top rib 24b: Beam 24c: Beam 25b: Beam 25c: Beam 27: Hanging piece 28: Hanging piece 29: Bottom 3: Opening 41: Opening 42: Opening 6 : Holding means 8: Fluid (package) 82: Seal 80: Bag A: Box

Claims (3)

[Claims] 1. A mantle container for accommodating a fluid filled in a flexible bag having a substantially flat rectangular shape together with the bag,
It is configured as a vertically long box with a substantially rectangular horizontal cross section,
The upper half of the box is provided with an opening through which the corner of the bag protrudes, and the box is configured to be deployable around a vertical imaginary plane including one diagonal line in a horizontal cross section of the box. A fluid envelope that is packaged in a bag. 2. The outer container according to claim 1, wherein an ear-shaped seal portion extends over at least one side edge of the bag, and a holding means for holding the seal portion of the bag is provided at a top portion of the box. 3. The outer container according to claim 1, wherein the fluid is soft drink.