JP2004099110A - Inner bag storage container - Google Patents

Abstract

An inner bag of a four-way seal with a spout can be easily put into an outer box, the strength of the outer box is reinforced, and the swinging in the outer box is suppressed to prevent damage to pinholes and the like, and the contents are provided. To prevent leaks and alteration. Further, the present invention provides an inner bag storage container capable of minimizing the residual content after use and reducing the disposal volume easily.
An inner bag storage container comprising an outer box and an inner bag member molded into a rectangular parallelepiped shape having the same size as the inner size of the outer box and housed in the outer box. A four-sided seal bag with a spouting tool formed by laminating two sheet materials and thermally bonding the peripheral edge of each sheet material, and a spouting tool attached to the center upper part of one surface, and the top and bottom outer surfaces of the four-sided seal bag The frame is composed of two frames that are attached so as to cross the center in the direction. The frame has a left wing plate, a center plate, and a right wing plate that are continuously provided by two creases extending in the vertical direction. By being bent with the above-mentioned folds, it is formed into a rectangular parallelepiped shape having a spouting tool on the upper part.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rectangular parallelepiped or cubic paperboard container having an inner bag, and more particularly to an inner bag storage container suitable for storing a large volume of a fluid substance such as a liquid.
[0002]
[Prior art]
Conventionally, as a simple container for storing various liquids, a box-shaped container with an inner bag (generally called a bag-in-box) has been used instead of a metal container, a glass bottle, or a resin container. That is, a resin film inner bag or a thin resin molded container is housed in an outer paper container, and a spout is attached to a part of the container as required.
[0003]
In the case where the inner bag made of resin film is housed in a container made of outer paper, manual charging or charging using a hopper (funnel-shaped charging mechanism) has been performed. In some cases, pinholes are generated due to the occurrence of leakage, which may cause leakage or deterioration of the contents. In addition, since the degree of adhesion to the inner wall of the outer paper container is incomplete and the storage state of each corner of the inner bag is not constant, there is a disadvantage that the contents cannot be completely discharged and the remaining amount is not constant. Even if a special mechanism such as a hopper is used, the above problem has not been solved.
[0004]
In addition, when a thin resin molded container is used instead of the inner bag, although the charging state is stable, it is impossible to make it close to the inner wall of the outer paper container, and the entire container needs to be designed large. Further, when the resin molded container is transported and stored, the packaging volume becomes excessively large, and there is a problem in economics such as transportation and storage costs.
[0005]
As a solution to the above problem, a paperboard having a shape that is assembled into a box shape having substantially the same size as the inner size of the outer box is attached to the outside of the inner bag to form an inner bag member, and the inner bag member is formed into a box. There is disclosed an invention in which the container is woken up and placed in an outer box. According to the invention, the inner bag is fixed along the inner surface of the outer box by the paperboard, so that the inner bag does not move during transportation and a pinhole does not occur. In addition, there is an effect that the remaining amount of the contents after use can be minimized. More specifically, the inner bag member is formed as follows. That is, a flat cylindrical inner bag made of resin and one or two paperboards punched in an unfolded shape are created by laminating, and the flat cylindrical inner bag is attached with a spout beforehand. It is said that the upper and lower parts may be closed by heat sealing. The one or two paperboards punched into the unfolded shape are formed into a rectangular parallelepiped box shape having substantially the same size as the inner size of the outer box, and face the side plates forming the body respectively. Another embodiment has a top plate and a bottom plate, and in another embodiment, a triangular plate extending along the ear portion of the inner bag is shown. However, in the case of large-sized liquid paper containers, it is common practice to use a four-sided seal bag as the inner bag to withstand the volume and weight of the contents. The inner bag has a shape having an outer edge including a portion. For this reason, when the above-mentioned invention is used, a single paperboard type results in a paperboard configuration having a developed size larger than the three-dimensional size of the bag, and the inner bag member does not stand up to the correct size. There is a possibility that pinholes may be generated due to rubbing of the seal portion or the outer edge including the seal portion (for example, see Patent Document 1).
[0006]
[Patent Document 1]
JP-A-7-223633
Another prior art technique is to provide a thin, flat, tubular body of thermoplastic material, sealed at each end and having a distribution orifice at one end, and a collapsible rectangular base and hinged connections on opposite sides of the base. Protection provided with two side walls, a foldable extension hingedly connected to the other side of the base, and a foldable flap formed to extend along two sides of the base. An invention of a container having a casing is disclosed. The tubular body of material is fixed near the two ends to the side wall of the protective casing and can be folded flat between the side walls, such that the protective casing forms a body of rectangular cross section, The container is assembled by expanding the material, and can be transported in a flat state when not in use, and can be easily and quickly assembled when in use. However, as described above, in a large liquid paper container, a four-sided seal bag is generally used for the inner bag to withstand the volume and weight of the contents. It has a shape having an outer edge including a portion. For this reason, when the above-mentioned invention is used, the rectangular base dimension is designed to be longer than the bottom dimension of the inner bag member, and it does not expand accurately, and the left and right seal portions of the four-side seal bag or The outer edge including the seal portion may be bitten, and pinholes may be generated due to rubbing.
Furthermore, in the above invention, the flaps on the sides are not automatically folded and the triangular pockets have a fixed portion of the tubular material, which is close to the two ends with respect to the side wall. There is a drawback that a separate assembling operation is required together with the extension of the base that is folded into a shape (for example, see Patent Document 2).
[0008]
[Patent Document 2]
Japanese Patent Publication No. 42-25262
[Problems to be solved by the invention]
Therefore, the present invention has been made to solve the above problems, and relates to a rectangular or cubic paperboard container having an inner bag, particularly for storing a large volume of a liquid material such as a liquid. This is related to a suitable inner bag storage container. It can easily insert the inner bag of the four-sided seal into the outer box, reinforces the outer box strength, and suppresses swinging in the outer box, thereby damaging pinholes etc. To prevent leakage and deterioration of the contents. Further, the present invention provides an inner bag storage container capable of minimizing the residual content after use and reducing the disposal volume easily.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the invention of claim 1 is an inner bag storage container comprising an outer box and an inner bag member which is formed into a rectangular parallelepiped shape having the same size as the inner size of the outer box and is housed in the outer box. The inner bag member is formed by laminating two sheet materials and thermally bonding the peripheral edge of each sheet material, and a four-side seal bag with a spout device attached to a spout device at the upper center of one surface. A right wing plate, which is formed by two frame members attached so as to cross the center in the vertical direction of the front and back outer surfaces of the four-sided seal bag, wherein the frame member is connected by two creases extending in the vertical direction. An inner bag storage container having a center plate and a left wing plate, and being formed into a rectangular parallelepiped shape having a spouting tool at the top by being folded by the crease, particularly a large-volume liquid material such as liquid. Suitable for storage, can easily insert a four-sided seal bag with spout into the outer box. Prevents damage to pinholes, etc. by suppressing swinging in the outer box, prevents leakage and deterioration of the contents, and minimizes the remaining amount of contents after use by making close contact with the inner wall of the outer box. In addition, an inner bag storage container capable of easily reducing the disposal volume is provided.
[0011]
The width of the left and right wing plates of one of the frame members may be half the depth dimension of a rectangular parallelepiped shape, or the width of the seal portion or the seal portion of the four-side seal bag. In the other frame, the width of the left and right wing plates is from the half of the depth dimension in a state of being molded into a rectangular parallelepiped shape to the outer edge including the seal portion width of the four-side seal bag or the seal portion width. The inner bag storage container according to claim 1, characterized in that the width of the inner bag storage container is reduced, so that the seal width of the four-side seal bag with the spout is prevented from being caught by the frame body. In addition to making it easier to install, it prevents the occurrence of pinholes due to rubbing, and prevents leakage and deterioration of contents.
[0012]
According to a third aspect of the present invention, in the inner bag storage container according to the first or second aspect, the frame body is formed of laminated cardboard or corrugated cardboard. Prevents damage to the outer box such as buckling and reduces the basis weight of paperboard and other materials used in the outer box from the overall strength of the inner box. Provide a container.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described in detail below with reference to the drawings and the like.
FIG. 1 is a developed plan view of an outer box of the embodiment of the inner bag storage container according to the present invention. 2A and 2B show respective members constituting the inner bag member. FIG. 2A is a plan view of the four-side seal bag with the spout viewed from the surface to which the spout is attached. (B) is an exploded plan view of the frame A attached to one surface of the four-side seal bag with the spout. (C) is an exploded plan view of the frame body A 'that is similarly attached to the other surface. FIG. 3A is a plan view showing a state in which a frame A is attached to one surface of a four-side seal bag with a spout, and FIG. 3B shows a state in which a frame A 'is attached to the other surface. It is a top view. FIG. 4 is a perspective view showing a state where the frame members A and A ′ are raised and the four-side seal bag with the spout is made three-dimensional. FIG. 5 is a perspective view showing a state in which the inner bag member is being supplied. FIG. 6 is a perspective view showing a completed state of the inner bag storage container.
[0014]
FIG. 1 is an exploded plan view of an outer box of an embodiment of an inner bag storage container according to the present invention, in which a side plate 11, a front plate 12, a side plate 13, a rear plate 14, and a sticking member which are continuously provided via vertical folding lines. On the extension of the lower end of each of the side plate 11, the front plate 12, the side plate 13, and the rear plate 14, a horizontal fold line is formed by sticking the side plate 11 and the sticking piece 15 together. The ear piece 16, the bottom plate 17, the ear piece 18, and the overlapped bottom plate 19 are connected in series, and the ear piece 20, the overlapped top plate 21, the ear piece 22, and the top plate 23 are provided on the upper end extension through horizontal fold lines. Are connected. Further, an insertion piece 24 is continuously provided at the center of the upper end of the top plate 23 via a horizontal folding line, and an insertion groove 25 is formed at the center of the horizontal folding line between the front plate 12 and the overlapped top plate 21. ing. In order to expose the spout, spout holes 26 and 27 are formed at predetermined positions of the top plate 23 and the superimposed top plate 21, and notches 28 and 29 are provided in the ear pieces 20 and 22. ing. The structure of the outer box is not limited to this.
[0015]
2A and 2B show each member constituting the inner bag member. FIG. 2A shows a heat sealing portion in which a resin spout 5 is attached to one surface of the bag in advance by ultrasonic sealing or the like, and the outer edges are thermally bonded on all sides. 6 is a four-sided seal bag B with an outlet. (B) is an exploded plan view of the frame A attached to one surface of the four-side seal bag B with the spout, and the central plate 1 and the central plate 1 which are substantially smaller than the front plate 12 of the outer box D. The right wing plate 2a and the left wing plate 2b are provided on both sides of the vertical wing line L1 and L1 'via the longitudinal fold lines L1 and L1'. The width of each of the right wing plate 2a and the left wing plate 2b is the inner size of the outer case D, This is a width obtained by adding the width of the seal portion of the four-side seal bag B with the spout or the outer edge size including the width of the seal portion to the half width of the depth. (C) is an exploded plan view of the frame body A ′ attached to the other surface of the four-side seal bag B with the spout, and the center plate 3 and the center plate, which are substantially smaller than the rear plate 14 of the outer box D, are shown. A right wing plate 4a and a left wing plate 4b are provided on both sides of the plate 3 via vertical folding lines L2 and L2 '. The width of each of the right wing plate 4a and the left wing plate 4b is the inner size of the outer case D. The width of the four-side seal bag B with a spout or the outer edge including the width of the seal is subtracted from the width of the half of the depth.
[0016]
Next, as shown in FIG. 3 (A), the frame A is attached so as to cross the center in the vertical direction of one surface of the four-side sealing bag B with the spout, and FIG. As shown in (2), the frame A 'is attached to the center of the other surface in the vertical direction at a position symmetrical to the frame A to form the inner bag member C. In order to attach the frame members A and A 'to the four-side seal bag B with the spout, the entire surface of the frame members A and A' may be attached. May be stuck with an adhesive or a hot melt agent.
[0017]
A resin film having an appropriate layer structure can be used for the four-side seal bag B with a spout according to the type of the contents. Also, as a feature of the four-sided sealing bag, when a bag with a large capacity is required, when strength is required, or when special protective properties are required, a double bag or a triple bag can be used. In addition, the spout 5 is formed by attaching a resin spout member from the inside to a hole portion previously punched at a predetermined position of a four-sided seal bag by an ultrasonic seal or the like. It is appropriately selected in consideration of suitability for sealing the bag with the resin film.
[0018]
Next, the inner bag member C is erected in a rectangular parallelepiped shape, and the ear portions formed at the two bottom portions of the four-side seal bag B with the spout are bent toward the top surface and the bottom surface, respectively, as shown in FIG. It is three-dimensional. At this time, the frame members A and A 'are bent at respective vertical folding lines L1, L1' and L2, L2 'to form a U-shape, and butted at respective side ends. Further, air flows into the four-side seal bag B, and the entire surface of the frames A and A 'or the vicinity of the upper and lower edges is adhered, so that the three-dimensional seal is formed in the rectangular frame formed by the U-frames A and A'. It becomes something.
[0019]
Next, as shown in FIG. 5, the body composed of the side plate 11, the front plate 12, the side plate 13, and the rear plate 14 is opened into a cylindrical shape using the vertical folding line, and then the ear is formed using the horizontal folding line. The inner bag member C is inserted into an outer box D having a closed bottom by bending and sticking and joining the pieces 16 and 18, the polymerization bottom plate 19, and the bottom plate 17 in this order. Next, after the ear pieces 20 and 22 and the superimposed top plate 21 are bent using the horizontal folding line, the insertion piece 24 is inserted into the insertion groove 25 while bending the top plate 23 to complete the assembly, and the contents are discharged from the spout 5. After filling, an appropriate spout cap 7 is screwed or fitted into a finished product state.
[0020]
The use is performed by pouring out the contents from the spout 5, but since the inner bag member C is inserted and fixed along the inner surface of the outer box D, the remaining amount of the contents should be extremely small. Can be done. Further, after use, the inner bag member C can be easily removed from the outer box D and can easily be made flat, so that the volume of waste can be reduced.
[0021]
In the inner bag storage container described above, if the outer dimensions of the outer box, the size of the spout and the mounting position, etc. are the same as those of the existing metal container or resin container, the contents are used using the filling machine used Filling can be performed, and can be replaced with a paper container without adding a new cost to the filling process.
[0022]
【The invention's effect】
As described above, the inner bag storage container of the present invention has a four-sided seal bag with a spout that is attached to the front and back outer surfaces of the independent frames, and is assembled to approximately the same size as the inner size of the outer case body. In particular, when storing large-volume liquids such as liquids, the inner bag member, which is three-dimensional in a rectangular parallelepiped shape, can be easily inserted into the outer box, and swings in the outer box. By suppressing it, damage to pinholes and the like is prevented, leakage and alteration of the contents are prevented, and the remaining amount of the contents after use can be reduced as much as possible by bringing the contents into close contact with the inner wall of the outer box. Also, at the time of disposal, the inner bag member can be easily taken out of the outer box and easily flattened, so that the volume of waste can be reduced, and the inner bag can be separated from the member and discarded separately. .
[0023]
Further, the width of the left and right wing plates of one of the frame members is formed by adding the outer edge including the sealing portion or the sealing portion of the four-way sealing bag with the spout, and the other width is the width of the four-side sealing bag with the spout. Formed with a reduced width of the seal part or outer edge including the seal part of the seal bag, so that the seal width part of the four-side seal bag with spout by the frame is not caught, making it easier to attach to the outer box. In addition, the occurrence of pinholes due to rubbing can be prevented, and leakage and alteration of the contents can be prevented.
[0024]
In addition, the frame is made of laminated cardboard or corrugated cardboard to reinforce the outer box body to prevent damage to the outer box such as buckling due to stacking. It is also possible to reduce the basis weight of the material such as paperboard, thereby providing an excellent economical effect.
[Brief description of the drawings]
FIG. 1 is an exploded plan view of an outer box of an embodiment of an inner bag storage container according to the present invention.
FIG. 2 (A) is a plan view of a four-side seal bag with a spout viewed from a surface to which a spout is attached. (B) is an exploded plan view of the frame A attached to one surface of the four-side seal bag with the spout. (C) is an exploded plan view of the frame body A 'that is similarly attached to the other surface.
FIG. 3A is a plan view showing a state in which a frame A is attached to one surface of a four-side seal bag with a spout, and FIG. 3B is a state in which a frame A ′ is attached to the other surface. FIG.
FIG. 4 is a perspective view showing a state in which the frame members A and A ′ are raised and the four-side seal bag with a spout is made three-dimensional.
FIG. 5 is a perspective view showing a state in which the inner bag member is being supplied.
FIG. 6 is a perspective view showing an assembled state of the inner bag storage container.
[Explanation of symbols]
A, A 'Frame B Four-way seal bag with outlet C Inner bag member D Outer case 1 Center plate 2a Right wing plate 2b Left wing plate 3 Center plate 4a Right wing plate 4b Left wing plate L1-L2' Vertical fold line 5 Outlet 6 Heat seal Part 7 Outlet cap 11 Side plate 12 Front plate 13 Side plate 14 Rear plate 15 Adhesive piece 16 Ear piece 17 Bottom plate 18 Ear piece 19 Overlaid bottom plate 20 Ear piece 21 Overlaid top plate 22 Ear piece 23 Top plate 24 Insert piece 25 Insert groove 26 , 27 Notch outlet holes 28, 29 Notch

Claims (3)

An inner bag storage container comprising an outer box, and an inner bag member molded into a rectangular parallelepiped shape having the same size as the inner size of the outer box and housed in the outer box, wherein the inner bag member comprises two sheet materials. A four-sided seal bag with a spouting tool formed by thermally bonding the peripheral edge of each sheet material, and a spouting tool attached to the center upper part of one surface, and the vertical center of the front and back outer surfaces of the four-sided seal bag The frame includes a right wing plate, a center plate, and a left wing plate connected by two folds extending in the up-down direction. An inner bag storage container characterized by being formed into a rectangular parallelepiped shape having a spouting tool at an upper portion by bending the container. The width of the left and right wing plates of one of the frame bodies is a dimension obtained by adding the outer edge width including the seal portion width or the seal portion width of the four-side seal bag to half of the depth dimension in a state of being molded into a rectangular parallelepiped shape. In the other frame, the width of the left and right wing plates is a dimension obtained by subtracting the seal portion width of the four-side seal bag or the outer edge width including the seal portion width from half of the depth dimension in a state of being molded into a rectangular parallelepiped shape. The inner bag storage container according to claim 1, wherein 3. The inner bag storage container according to claim 1, wherein the frame is formed of laminated cardboard or cardboard.

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