JPH10101140A - 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 protrude the corner of the bag at the side face of the upper half part of a box body and a cover structure which is horizontally rotatable around the other side face side adjacent to one side face as a fulcrum at the side face side of the box body. SOLUTION: An opening 3 to protrude the corner of a bag is provided at the side face of the upper half part of a box body A. Two covers 2 are connected to the body 1 through a hinge respectively at one side face of the box body A. In this way, the covers 2 can be horizontally rotated. Since the box body A can be sufficiently opened by rotating the covers 2, a deformable bag can be easily contained to correspond to the shape of the box body A. And since the corner of the seal part side of the bag protruded from the opening 3 is cut off and opened and further the unsealed part of the bag is protruded from the side face of the box body A and it is positioned at a nearly certain constant level, the fluid is prevented from overflowing from the unsealing 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. It is configured as a vertically long box having a substantially rectangular horizontal cross section, the side of the upper half of the box is provided with an opening through which the corner of the bag protrudes, and on one side of the box, The lid structure is characterized in that a lid structure that can be rotated in the horizontal direction with the other adjacent side surface as a fulcrum is configured.

[0007] That is, in the above-mentioned outer container, the lid structure formed on one side of the box is the largest when the easily deformable fluid (package) filled in the flexible bag is accommodated in the box. The box can be opened as long as possible. In addition, the box accommodates a package that is easily deformed so as to follow the box, and the opening protrudes the corner of the accommodated 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 the ear-shaped seal portion extends over at least one side edge of the bag, a holding means for holding 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 view showing the inside of the mantle container, and is a front view in a state where the lid is fully opened. 3 to 5 are views each showing the appearance of the mantle container, FIG. 3 is a side view, FIG. 4 is a top view with the lid fully opened, and FIG. 5 is a bottom view. FIG.
FIG. 5 is a partially cutaway side view showing a lid locking means and a bag holding means. FIG. 7 is a perspective view showing the method of using the mantle container as viewed from the side. FIG. 8 is a perspective view showing a fluid (package) filled in a bag.

As shown in FIG. 8, 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 fluid (8) (hereinafter referred to as a packaged bag). , Packaged goods are indicated by reference numeral (8)) together with a bag (80), and as shown in FIG. 1, is configured as a vertically long box body (A) having a substantially rectangular horizontal cross section. . As shown in FIGS. 1 and 3, the side of the upper half of the box (A) is provided with an opening (3) from which the corner of the bag (80) protrudes,
On one side of the box (A), a lid structure that can rotate in the horizontal direction with the other side adjacent to the fulcrum as a supporting point is configured.

In the present invention, as the material of the bag (80), an appropriate material capable of filling and packaging a fluid is selected, and generally, a synthetic resin film for a packaging bag is 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).

These fluids are pillowed, for example, by a well-known filling and packaging machine using the above bag film. 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. 8, 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 is provided. 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 strength in transport and packing efficiency, etc., a bag having a substantially flat rectangular shape is used as the above-mentioned bag of the fluid, and in particular, 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 from 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 (A) is, as shown in FIGS.
Generally, it comprises a main body (1) and two lids (2) and (2), and these members are integrally formed by, for example, injection-molding the plastic material. That is, the box body (A) shown in FIG. 1 has a so-called double-opening lid structure.

When the box (A) is specifically described with the lids (2) and (2) closed, the body 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)
As shown in FIGS. 2 and 3, only the upper part of the four side surfaces is formed in a substantially trapezoidal shape. The outer dimensions of the box (A) are, for example, when applied to the above-mentioned 2 liter fluid (80),
Frontage is about 90-120mm, depth is 70-100mm
Degree and height are about 280 to 310 mm. In this case, the thickness (plate thickness) of the box body (A) is about 1 to 3 mm for a thick portion and 0.5 to 0.5 mm for a thin portion except for a specific rib or the like.
It is about 2 mm.

As described above, the box body (A) can be efficiently stored in a refrigerator or the like since its body is formed in a rectangular tube shape, and further, a soft drink such as a soft drink Can be compactly accommodated. Further, since the head has a shape in which the cross-sectional area becomes smaller as it goes toward the upper end, and the finger hooks (16) and (26) described later are provided, it can be hung when stored in a refrigerator or the like. It can be handled easily.

More specifically, as shown in FIGS.
The main body (1) constitutes the back surface, a part of both side surfaces, a bottom part, and a part of a head part of the box body (A). The meeting portion (corner portion) of the back surface and each side surface of the main body (1) is formed as ridges (11) and (11) having an appropriate radius of curvature.
(11) is continuous from the lower half to the upper half of the main body, and functions as a pillar of the box (A). On the back of the box (A), as shown in FIG. 2, the ridges (11), (1)
Beam portions (13), (14), and (15) that are continuous with 1) are provided, respectively. Further, on both side surfaces of the main body (1), as shown in FIG. 3, the beam portions (14b) and (15b) connected to the beam portions (14) and (15) via the ridge portion (11).
Is provided.

As shown in FIG. 2, on the back surface of the upper half of the main body (1), a portion surrounded by ridges (11), (11) and beams (13), (14) is formed. An opening (41) is formed, and a ridge (1) is formed on the back of the lower half.
A portion surrounded by 1) and (11) and the beam portions (14) and (15) is a plate surface portion (12). Then, as shown in FIG. 3, on the side surface of the upper half of the main body (1),
A portion surrounded by the ridge (11) and the beam (14b) bent at the upper portion is formed with a notch constituting an opening (3) described later, and the ridge (11) and the beam (14) are formed.
b), the portion surrounded by (15b) is the plate surface portion (1).
2b).

On the other hand, as shown in FIGS. 1 to 3, the two lids (2) respectively constitute a part of the front, side, and part of the head of the box (A). . The meeting part (projecting corner part) of the front and side surfaces of the lid (2) is a ridge (21) whose surface is formed with the same radius of curvature as described above, and the ridge (21)
Is continuous from the lower half to the upper half of the lid, and functions as a pillar of the box (A), like the ridge (11). Box (A)
As shown in FIGS. 1 and 2, in the front of the lid (2), the upper half of the lid (2), the boundary between the upper half and the lower half, and the bottom side,
Beams (23), (24), (2) connected to the ridge (21)
5) is provided.

In the front surface of the lower half of the lid (2), a portion surrounded by the ridge (21) and the beams (23) and (24) is cut into a notch forming an opening (42). The portion surrounded by the ridge portion (21) and the beam portions (24) and (25) is a plate surface portion (22).
Then, as shown in FIG. 3, on the side surface of the upper half part of the lid (2), a ridge (21) bent at the upper part and a beam (24b).
Is cut out to form an opening (3) to be described later, and a portion surrounded by the ridge (21) and the beams (24b) and (25b) is a plate surface (22b). ).

That is, in the box (A), the ridges (11) and (1) of the main body (1) are maintained in order to maintain the overall rigidity.
1) and the ridges (21) and (21) of the lids (2) and (2) form a pillar structure, and are integrated with the main body (1) to support the load of the contained fluid (8). The bottom part (19) (see FIG. 5) is formed, and the main body (1) is formed.
The lower half and the lower half of the lids (2) and (2) form a wall structure on four sides.

Further, in the upper half part of the box (A), as described above, the opening (41) provided in the main body (1) is provided with:
When the lids (2) and (2) are closed, the opening (42) formed by the cutouts on the front side of the lids and the body (1) when the lids (2) and (2) are closed. An opening (3) constituted by the notch on the side surface of the lid (2) constitutes an open structure (see FIGS. 1 to 3).

From the viewpoint of reducing the weight of the box (A), it is preferable to provide openings on each side as shown in the figure, but in the case of the present invention, the flat fluid (8 In order to properly expose both corners of the box (A), openings (3) and (3) are usually provided on two parallel side surfaces of the box (A).
(Or (41), (42)) are provided. As shown in FIGS. 2, 3 and 5, the bottom (19) of the main body (1) constituting the bottom of the box (A) is provided with a rib along the periphery of the bottom for reinforcement. Is provided on the lower surface side.

In the mantle container of the present invention, the two lids (2) and (2) constituting the lid structure are each provided with a hinge (10) with respect to the main body (1) as shown in FIGS. Connected through. The hinge parts (10) and (10)
When forming the box body (A), it is a flexible portion that is particularly thinly formed, and is disposed in a substantially lower half portion of the box body (A). Thereby, the lids (2) and (2) rotate in the horizontal direction, respectively.

Further, one lid (2) (right lid in FIG. 2)
Has a convex portion (20a) formed along its vertical edge, and the other lid (2) (left lid in FIG. 2) has a concave portion (20a) along its vertical edge. 20b) is formed. The convex portion (20a) and the concave portion (20b) are fitted to each other when the lids (2) and (2) are closed, and cooperate with the lid locking means described later to form the lid (2), Unnecessary opening of (2) is prevented.

As shown in FIGS. 1 and 3, the upper end of the back of the main body (1) and the upper end of the front of each of the lids (2) have finger hooks for hanging the box (A). Part (16),
(26) is provided along each of the beam portions (13) and (23). The finger hooks (16) and (26) have a shape in which the thick portion of each upper end is retracted along the beams (13) and (23) in the main body (1) and the lid (2). It is formed as a concave part that opens in the direction. Such finger hooks (16) and (26) function in cooperation with the shape of the head of the box (A) described above, and simplify handling of the box (A).

The locking means of the lid is constituted by a hook (17) and a hook (18c) as stoppers shown in FIG. The hanging piece (17) is attached to the top of the main body (1) as shown in FIGS. Hanging piece (17)
Is formed so as to be rotatable up and down while extending from a rib at the top of the main body (1) through a thin hinge portion. And
The tip has a shape bent slightly downward, and engages with a projection (27) provided on the upper surface of a rib on the upper edge of the finger hook (16) of the main body (1).

As shown in FIGS. 2, 3 and 5, the hook piece (28c) is attached to the lower edge of one lid (2). The latching piece (28c) is formed to be vertically rotatable while extending from the lower edge of the lid (2) through a thin hinge portion. The bottom has a shape slightly bent upward, and engages with a convex portion (18c) provided on the back surface of the bottom portion (19).

In the mantle container of the present invention, as shown in FIGS. 2 and 3, the main body (1) and the lids (2) and (2) are engaged with the top of the box (A). A holding means (6) for holding the seal portion (82) of the bag (80) is provided. As shown in FIG. 6, the holding means (6) includes specific ribs provided on the main body (1) and the lids (2) and (2), respectively.
That is, thick ribs (16c) provided along the beam portions (13), (23), and (23) and forming the inner walls of the concave portions as the finger hook portions (16) and (26),
(26c).

Specifically, a ridge (62) integrally formed on one of the ribs (for example, the rib (26c) on the lid side) and projecting in a triangular shape in a cross section perpendicular to the longitudinal direction of the rib is provided. , The other rib (for example, the rib (16
c)) and a groove portion (61) into which the ridge portion (62) fits. Such ridges (6
2) and the groove (61) always hold the upper end of the bag (80) housed in the box (A) by sandwiching the seal (82) of the bag (80) between them. Since the bag (80) is held in the state, the bag (80) can be prevented from bending downward inside the box (A).

As shown in FIGS. 1, 3 and 4, after the corner of the bag (80) on the seal portion (82) side is cut and opened, the opened portion is sandwiched and the bag is temporarily closed. To seal (80), a spatula-shaped clip (7) is provided at the head of the body (1). The upper end of the clip (7) is integrally connected to the main body (1), and extends along the bent shape of the ridge (11) with a small gap from the surface of the main body (1). The gap between the clip (7) and the surface of the body (1)
The gap is substantially the same as the thickness of the seal portion (82) of the bag (80). Such a clip may be provided on the lid (2) side, or may be provided on a plurality of side surfaces of the box (A).

The mantle container of the present invention is used as follows.
First, as shown in FIG. 7, the lids (2) and (2) are opened with the box (A) folded down, and the front side of the main body (1) is released. Next, the fluid (8) as shown in FIG. 8 is stored in the main body (1) without opening. At this time, the box body (A) includes a main body (1) having an open front side including a part of both side faces, and a double-sided open lid (2), (2) which rotates in a horizontal direction with both side faces as fulcrums. Therefore, the box (A) can be sufficiently opened. And a fluid (8) that is easily deformed
Can be easily accommodated according to the shape of the box (A).

When storing the fluid (8), one seal (82) of the bag (80) is overlapped with the groove (61), and the upper end of the main body (1) and each lid (2) are closed. After inserting both corners on the seal portion (82) side into the gap with the upper end side of (2), the lids (2) and (2) are closed. Thereby, the corner of the bag (80) can be protruded from the opening (3) formed by the cutout in the upper half of the main body (1) and the cutout in the side surface of the lid (2). . Then, the hanging pieces (27), (28)
The lids (2) and (2) are locked to the main body (1) using c).

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, the lid structure on the side surface (front surface) of the box body (A) has the both sides as fulcrums, and the hook pieces (27) and (2) as stoppers.
8c), it is possible to resist the lateral force near the bottom (19) due to the load of the fluid (8), and to prevent accidental opening of the lids (2) and (2). I can do it.

When the bag (80) is opened, in the state where the box (A) is set up, the corner on the side of the seal (82) protruding from the opening (3) is cut off and opened. In that case,
The box (A) holds the fluid (8) without being deformed by itself, and the opening (3) provided in the upper half of the box (A) is provided in the bag (80). An opening portion as a mouth of the bag (80) formed by cutting off a corner portion on the seal portion (82) side is protruded to the side surface of the box body (A) and positioned at a substantially constant height. Therefore, the fluid does not overflow from the opened portion of the bag (80).

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.

In the jacket of the present invention, the holding means (6) provided on the top of the box (A) holds the bag (80) with the lids (2) and (2) closed. And prevents the bag (80) in which the remaining amount of the fluid is reduced from being bent 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 furthermore, to prevent the bag (8) from overflowing.
The fluid in 0) can be taken out without waste.

Further, the clip (7) provided on the head of the box (A) holds the opened portion by folding and opening the opened portion of the bag (80). 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.

[0044]

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 view showing the inside of a mantle container, and is a front view in a state where a lid is fully opened.

FIG. 3 is a side view of a mantle container.

FIG. 4 is a top view of the mantle container with the lid fully opened.

FIG. 5 is a bottom view of the mantle container.

FIG. 6 is a partially cutaway side view showing locking means of the lid and holding means of the bag.

FIG. 7 is a perspective view from the side showing a method of using the mantle container.

FIG. 8 is a perspective view showing a fluid (package) filled in a bag.

[Explanation of symbols]

 1: body 11: ridge 13: beam 14: beam 15: beam 16: finger hook 17: hook piece (locking means) 19: bottom 2: lid 21: ridge 23: beam 24: beam Part 25: Beam part 26: Finger hook part 28c: Hook piece (locking means) 3: Opening part 41: Opening part 42: Opening part 6: Nipping means 61: Groove part 62: Ridge part 7: Clip 8: Fluid (Packaged product) 82: Seal part 80: Bag A: Box

Claims (5)

[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 side of the upper half of the box is provided with an opening through which the corner of the bag protrudes, and one side of the box is a lid rotatable in the horizontal direction with the other side adjacent to the fulcrum as a fulcrum. An outer container for a bag-packed fluid, the structure of which is constituted. 2. The lid structure according to claim 1, wherein the lid structure is a double door structure.
4. The mantle container according to 4. 3. The outer container according to claim 1, wherein the lid structure is a one-sided structure. 4. The bag 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 the top of the box. Mantle container. 5. The liquid according to claim 1, wherein the fluid is soft drink.
The mantle container according to any one of the above.