JPH07330027A - Compound container - Google Patents

Abstract

PURPOSE:To provide a compound container by which a dilute solution with a certain concentration can be securely and easily obtained and which has a small capacity when reserving or storing it before use but becomes a large capacity on using. CONSTITUTION:This container is a compound container composed of an inner container 11 of which capacity is variable in accordance with the volume of contents and an outer container 10 containing the inner container and increasing the capacity in accordance with the increase of the capacity of inner container. In this compound container, the whole of the inner container 11 is contained in the outer container 10 in the state that the opening 28 of the inner container is sealed before the solution is used. And on using true inside solution, an outer cock is connected to the opening 27 of the inner container 11 at the position of the opening 25 fixed to the outer container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for containing liquids, powders, etc., and more specifically, contents such as concentrated liquids, powders, etc. stored in advance are diluted with water, organic solvent, etc. The present invention relates to a composite container including an inner container capable of accommodating contents corresponding to a change in volume when the volume is increased and an outer container accommodating the inner container.

[0002]

2. Description of the Related Art Conventionally, when a high-concentration drug or beverage provided to a user is used, a method of diluting it according to the purpose is widely used for detergents, agricultural chemicals, insecticides, brighteners, paints, soft drinks, etc. Are known.

As a diluting method used in that case, a fixed amount of the concentrated liquid is transferred from an initial container to another container by using a measuring cup, a graduated container, a weight scale, etc. There is a method of obtaining a diluted solution having a desired concentration by adding water, an organic solvent and the like and stirring the mixture.

This method has the advantage that transportation costs, storage costs, manufacturing costs, etc. can be greatly reduced, and cheap products can be provided to users. But,
According to this method, since additional work such as weighing is involved, there is a possibility that a concentration difference may occur between the diluting liquids obtained in each diluting work, and when the concentrated liquid is dangerous. , You must pay close attention to its handling.

Therefore, the concentrated liquid and the powder are preliminarily stored and provided in a large-sized container which is supposed to have a capacity after dilution, and at the time of use,
A method has been proposed in which a large amount of diluting liquid is injected into the large container to obtain a diluting liquid having a desired concentration. According to this method, it is possible to obtain a diluting solution with a constant concentration, and there is an advantage that the labor and risk involved in the work are reduced.

[0006]

However, in such a container, since various kinds of handling are performed in a state where the exclusive space of the container itself is always large, transportation cost, storage cost, manufacturing cost, etc. There was the inconvenience of causing an increase.

Therefore, a method is possible in which a bag-shaped container whose volume can be changed is provided, a concentrated liquid or the like is put in the container, and a diluting liquid is injected at the time of use, but even if such a method is simply adopted. There is a high risk that the bag-shaped container will be exposed to the outside and break, and the bag-shaped container will be deformed irregularly, making it difficult to take out the liquid.

The present invention was devised in order to improve such conventional inconveniences, and an object of the present invention is to secure a state in which the volume is minimized at the time of transportation and storage before use, and transport and storage. While making it easy to handle, etc., change the volume to a large volume at the time of use to easily and reliably prepare a dilute solution of a certain concentration.
Another object of the present invention is to provide a composite container which can be obtained safely and can be conveniently handled.

[0009]

In order to achieve the above object, a composite container according to the present invention includes an inner container having a variable volume according to the capacity of the contents, and the inner container for accommodating the inner container. The internal container is provided with an external container whose volume can be increased in accordance with the increase in volume of the internal container.

The outer container of this composite container is provided with an extension flap that is folded inward or outward in a state where the volume is small, and by adopting a configuration in which the volume can be increased by sequentially deploying the extension flap. .

The outer container of the composite container is
A configuration with first and second container bodies that fit in a telescopic relationship can also be employed. In this configuration, the first
The volume can be increased by sliding the second container body and the second container body in the mutually separated direction.

Further, the composite container according to the present invention comprises an inner container whose volume is variable according to the volume of the contents, and a partially open type outer container which is provided so as to surround the mouth of the inner container. This outer container is provided with a size capable of accommodating the inner container in a state where the volume of the inner container is small, and is provided so as to be able to hold the inner container in a state where the volume of the inner container is greatly increased. As a result, the regularity around the mouth of the inner container is maintained and the liquid can be easily taken out.

An external plug is detachably provided from the outside of the external container at the mouth of the internal container, and the internal container and the external container are connected to each other with the external plug attached to the internal container. Adopted.

[0014]

The above-mentioned inner container is kept small in volume as a whole by folding the inner container in a state in which an object to be contained such as a concentrated liquid or a powder is contained in advance. On the other hand, the outer container accommodates the inner container in a minimum volume sufficient to accommodate the inner container, and is transported and stored as a composite container of the inner container and the outer container.

When using the contents in the inner container, a predetermined diluent corresponding to each contents is injected into the inner container.
At this time, since the maximum volume of the inner container is physically determined, by injecting the diluent to a predetermined position,
It can be diluted to the target concentration. The inner container after this dilution is accommodated in the outer container having a large volume.

In order to increase the volume of the outer container, in the structure employing the extension flap, it can be easily performed by successively expanding the extension flap and changing the folding position. In addition, the volume can be increased by sliding the container bodies in a direction in which they are separated from each other with an outer container in which a plurality of container bodies are configured in a telescopic relationship.

In the case of a composite container in which the outer container is a standard one, before use of the contents such as the concentrated liquid contained in the inner container, the outer container is stored in the outer container in the same manner as described above and diluted. The work is performed in the same manner. The volume of the inner container gradually increases due to this dilution, but the outer container does not increase in volume because it has a standard size.
Therefore, after the volume is increased, the inner container is partially exposed from the outer container to the outside. An external stopper is attached to the mouth of the inner container from the outside of the outer container, and the outer container interconnects the inner container and the outer container. Therefore, by fixing the outer container to a predetermined mounting surface or the like, the entire composite container can be held in a suspended state.

As the molding material for the inner container in the present invention, polyethylene, polypropylene, polyvinyl chloride,
Thermoplastic resin such as polyethylene terephthalate, NB
Rubber such as R, EPDM, SBR, NR, polyurethane, etc.
Examples include elastomers, composites / mixtures of these resins and rubber / elastomers, waterproof paper, etc., as long as they can be expanded / contracted or folded with a certain degree of flexibility to make the volume variable. However, the molding material used is not limited. The inner container is preferably one manufactured by blow molding or the like using low-density polyethylene as a molding material, and may be coated with aluminum or the like if necessary.

Further, the extension flap of the outer container can be formed on the side surface, the top surface or the bottom surface, and the number of steps of this extension flap is sufficient if at least one extra step is required in addition to each side forming the minimum volume. Depending on the situation, two or more stages may be provided. When two or more stages are provided, the volume increase rate can be set higher. The molding material for the outer container is
Examples include fiberboard boxes such as cardboard boxes, metal containers, thermoplastics, thermosetting plastics,
A wide selection can be made according to the composition and volume of the contents in the inner container.

[0020]

Embodiments of the present invention will now be described in detail with reference to the drawings.

1 to 5 show a first embodiment of a composite container according to the present invention. Here, FIG. 1 and FIG.
Shows the initial state before the volume increases as a whole, and FIG.
And FIG. 4 shows the state after the volume increase. Further, FIG. 5 shows a developed view of the outer container. In these drawings, the composite container according to the present embodiment includes an outer container 10 having a rectangular parallelepiped shape and an inner container 11 housed inside the outer container 10.

The outer container 10 is, as shown in FIG.
Four side wall forming surfaces 13 that are continuous in a horizontal row, and a lid forming surface 14 that is continuous with the upper edge of each side wall forming surface 13 in the figure.
And a bottom wall / side wall forming surface 15 continuous with the lower end edge of the side wall forming surface 13, and a bottom wall forming surface 16 as an extension flap further connected to the lower end edge of the bottom wall / side wall forming surface 15.
And the adhesive surfaces 17 and 18 that are continuously provided on the right end edges of the side wall forming surface 13 and the bottom wall / side wall forming surface 15 in the figure. The outer container 10 in this embodiment is formed entirely of corrugated cardboard, and is set to have a wall thickness capable of withstanding a constant load.

A slit 20 having a predetermined width is set between the lid forming surfaces 14 so as to have a predetermined correlation with the wall thickness of the lid forming surfaces 14. Each of the lid forming surfaces 14 has a side wall forming surface 13. It is provided so as to be individually foldable at a boundary line L1 between and. Of these lid forming surfaces 14, semicircular perforations 21 are formed at the right end in FIG.
The inner area surrounded by can be removed. Further, on the lid forming surface 14 located in the second row from the right side in FIG. 5, a circular perforation 2 near the side wall forming surface 13 is formed.
2 is formed, and the inner region surrounded by the perforations 22 is also provided so as to be removable in the same manner. Each lid forming surface 14
With the boundary line L1 folded, the perforation 2
1 and 22 are on the same axis, and therefore,
A single opening 25 (see FIG. 2) is formed in a state where the lid forming surface 14 inside the perforations 21 and 22 is removed.

A slit 24 similar to the slit 20 provided on the lid forming surface 14 side is formed between the bottom wall / side wall forming surfaces 15 and between the bottom wall forming surfaces 16. The bottom wall / side wall forming surface 15 and the bottom wall forming surface 16 are formed to have substantially the same size as the side wall forming surface 13 and the lid forming surface 14, and the bottom wall / side wall forming surface 15 is the side wall forming surface. Thirteen
It is foldable at a boundary line L2 with respect to, and the bottom wall forming surface 16 is foldable at a boundary line L3.
The bottom wall forming surface 16 in this embodiment is folded inward and overlaps with the bottom wall / side wall forming surface 15 to form the bottom wall of the outer container 10 in the initial state (see FIG. 1), while the bottom wall / side wall is formed. Only the bottom wall forming surface 16 forms the bottom wall when the forming surface 15 is flush with the side wall forming surface 13 and the side wall height is approximately doubled (see FIG. 3). Although it is possible to fold each bottom wall forming surface 16 in the initial state to the outside, it is convenient to fold it to the inside in terms of handling.

On the other hand, the inner container 11 is a soft resin container manufactured by a blow molding method using low-density polyethylene as a main raw material, and it is provided so that it can be appropriately expanded and contracted and bent to have a variable volume. This inner container 11 is
A cap 28 is attached to the mouth 27 which is formed in a bag shape as a whole and is partially formed. Various concentrated liquids and powders are previously stored in the inner container 11, and in the initial state, as shown in FIG. 2, the bottom is folded inward to be kept small as a whole and the outer container. It is housed in 10.

Next, the operation of this embodiment will be described.

First, in the outer container 10, the above-mentioned bottom wall forming surface 16 is folded inside the bottom wall / side wall forming surface 15. At the same time, the side wall forming surfaces 13 are valley-folded and bent at right angles to each other, and the adhesion surface 17 is adhered to the side wall forming surface 13 adjacent to the side surface 13 to form a closed loop side wall.

Next, the bottom wall / side wall forming surface 15 and the bottom wall forming surface 16 folded inside thereof are integrally folded inward in the horizontal direction to complete the bottom wall. At this time, the bottom wall can be fixedly completed by using an adhesive tape (not shown) or a double-sided adhesive tape.

On the other hand, the inner container 11 contains a predetermined concentrated liquid or powder corresponding to the maximum volume of the inner container 11, and then the cap 27 is used to open the mouth portion 2 of the inner container 11.
7 is closed, the bottom is folded inward to make a small volume state, and this is set in the outer container 10.

In this way, the inner container 11 is replaced with the outer container 1.
After being housed in the container 0, the lid forming surface 14 of the outer container 10 is folded inward and closed to complete the initial form of the composite container and to be subjected to the subsequent transportation, storage and the like.

When a user or the like uses the contents in the inner container 11, the lid forming surface 14 is opened in the opening direction to take out the inner container 11, and the bottom wall of the outer container 10 is opened to open the bottom wall. The side wall forming surface 15 is replaced with the side wall forming surface 13
And make it flush. At the same time, the inner regions of the perforations 21, 22 formed on the lid forming surface 14 are removed. Then, only the bottom wall forming surface 16 is folded again inward in the horizontal direction to form the bottom wall, and then the inner container 11 once taken out is accommodated.

Then, the cap 28 of the inner container 11 is removed and a predetermined diluent is injected. In this diluting work, since the injection amount of the diluting liquid is determined by the maximum volume of the inner container 11, additional work such as measuring the diluting liquid is unnecessary. When the injection of the diluent is completed, as shown in FIG. 4, the inner container 11 is greatly expanded in the outer container 10 and its volume is increased, and in this state, the mouth 27 of the inner container 11 is covered with an external stopper. 30 is attached. The external plug 30 is provided with an air vent hole (not shown), a bellows-shaped bellows 31 on the tip side, and a faucet 32.
The internal flow path can be opened and closed as appropriate by rotating the. Therefore, in the subsequent use, the liquid in the inner container 11 can be taken out as needed. External stopper 30
In the state in which is mounted, the outer container 10 and the inner container 11 are connected to each other, and the relative movement between the two does not occur.

According to such an embodiment, the outer container 10
The bottom wall / side wall forming surface 15 is continuously provided with the bottom wall / side wall forming surface 15 as an extension flap, and these are integrally formed to form the bottom wall in the initial state. The function changes as a part of the side wall and the bottom wall forming surface 16
Since the bottom wall is formed by only the outer container 10,
The effect is that the volume of can be increased to about twice the initial volume.

On the other hand, the inner container 11 can be changed so as to increase the initial volume, and the volume is gradually increased by injecting the diluent, and the injection amount of the diluent is the maximum of the inner container 11. Since the volume can be determined in advance, there is an effect that a liquid diluted to a target concentration can be obtained without requiring work such as measurement.

Moreover, the inner container 11 is always the outer container 10.
Since it is entirely covered with, it becomes possible to effectively protect the inner container 11 that is easily affected by external force,
Even if the liquid to be stored in the inner container 11 requires safety, the liquid can be applied without any problem.

Further, since the outer plug 30 is attached to the mouth portion 27 of the inner container 11 in the area of the opening 25 formed in the outer container 10, the inner container 11 is attached to the outer container 10 in this state. There is also an effect that the inner container 11 is fixedly connected and can be held in the outer container 10 at a fixed position, and a load that may occur on the bottom wall of the outer container 10 can be reduced.

Next, other embodiments of the present invention will be described. In the following description, the same reference numerals as in the first embodiment will be used as necessary, and the description will be omitted or simplified. To do.

FIG. 6 shows an outer container 10 according to the second embodiment.
Is shown, and FIG. 7 is a sectional view of the outer container 10 in the initial state according to the embodiment. In these figures, the outer container 10 is composed of first and second container bodies 40 and 41 which are fitted to each other in a telescopic relationship. The first container body 40 is adapted to be housed in the second container body 41, and the second container body 4
It is provided so as to be slidable up and down along the inner wall of 1. The top wall 40A of the first container body 40 has the first
An opening 25 similar to that in the above embodiment is formed in advance. Each of the container bodies 40 and 41 in this embodiment is molded using a metal material or a resin material, and has the opening 25.
Is integrally molded, but in the case of paper such as corrugated board, the same perforation as in the first embodiment may be formed and the opening 25 may be formed at the time of use. .

An inner container (not shown) whose volume can be increased is housed in the outer container 10 thus formed, and the external plug 30 is detachably mounted.

Therefore, according to the second embodiment as described above, in addition to the effect obtained in the first embodiment, the work of increasing the volume of the outer container 10 can be performed more simply and quickly. The effect can be added, and the increase in strength of the outer container 10 can further improve the reliability when a liquid, which is particularly required to have safety, is set as the accommodation target of the inner container 11.

FIG. 8 shows a third embodiment of the composite container according to the present invention. Exterior container 1 in this embodiment
0 is composed of a standard one,
This is different from the above-described embodiments in that the bottom wall side is provided in an open shape from the beginning. The outer container 10 has a size capable of completely containing the inner container 11 in the initial state, and the top wall 50 is formed with an opening (not shown) for inserting the pump 51 constituting the outer stopper. There is. Further, a hole 53 is formed in one side wall portion of the outer container 10, and the hole 53 is adapted to be engaged with a hook 56 fixed to a wall surface 55.

The inner container 11 is formed in the shape of a bag or a bellows, and in a state where a predetermined diluting liquid is injected, the inner container 11 is largely exposed to the outside from the lower end open portion in the figure. The above-mentioned pump 51, which is inserted through the opening of the outer container 10, is connected to a mouth portion (not shown) of the inner container 11, and a suction pipe 60 of the pump 51 extends to the bottom of the inner container 11. Has been done.

Therefore, according to the third embodiment, the inner container 11 and the outer container 10 can be interconnected via the pump 51, and the outer container 10 can be connected to the wall surface 55.
Since it can be held in a suspended state on the side, the inner container 11
The outer peripheral region of the mouth can be always surrounded by the outer container 10, and there is an effect that it can be particularly effectively applied as a container for accommodating a liquid detergent or the like which is frequently used intermittently.

A fourth embodiment of the present invention is shown in FIGS. Here, FIG. 9 is a perspective view showing a state where the volume of the outer container 10 is increased, as viewed from the bottom side, and FIG.
Reference numeral 0 indicates a development view of the outer container 10.

The outer container 10 according to the fourth embodiment.
Is formed of corrugated cardboard as in the first embodiment, and as shown in FIG. 10, a side wall forming surface 13 consisting of four pieces, a lid forming surface 14 connected to these, and an extension flap. And a bottom wall / side wall forming surface 15 which acts as. The side wall forming surface 13 and the lid forming surface 14 have substantially the same structure as that of the first embodiment, and an adhesive surface 17 and perforations 21, 22 are formed respectively.

On the lower end edge side of the bottom wall / side wall forming surface 15 in FIG. 10, cut portions 80 are formed so as to extend from the left and right sides to the middle, and are formed so as to be continuous so as to be orthogonal to the extending direction of the cut portions 80. And a folded piece 82 that can be bent inward is formed along the folded portion 81.

The bent piece 82 forms a part of the bottom wall without being bent in the initial state, and raises the bottom wall / side wall forming surface 15 flush with the side wall forming surface 13 of the outer container 10. In the state where the volume is increased, as shown in FIG. 9, the connecting slits 85 that enable mutual connection with the adjacent bent pieces 82 are formed in a staggered relationship.

An inner container 11 (not shown) similar to that of the first embodiment, whose volume can be increased, is housed in the outer container 10, and an outer plug 30 is similarly attached thereto. The bent pieces 82 can support the bottom of the inner container while the volume of the outer container 10 is increased.

Therefore, according to the fourth embodiment as described above, in addition to the effects obtained in the respective embodiments, the outer container 10
It is possible to reduce the amount of forming material and obtain the additional effect of easily visually recognizing the remaining amount of the internal liquid when the inner container 11 is formed of a translucent material.

In the above embodiment, the bottom wall / side wall forming surface 15 acting as the extension flap has a one-stage structure. However, the present invention is not limited to this. May be formed in multiple stages. In short, it suffices that the number of steps of the extension flap is determined by the correlation with the maximum volume of the inner container 11.

In addition, the inner container 11 may be configured such that the mouth portion 27 can be appropriately engaged with the opening 25 of the outer container 10. In this case, the inner container 11 is mounted without the outer plug 30. The liquid can be taken out by appropriately opening the cap 28 thus formed.

Further, the outer container 10 may have various shapes, such as a rectangular parallelepiped shape, a polygonal shape, and a flat shape as long as the volume can be increased.

[0053]

EFFECTS OF THE INVENTION Since the present invention is constructed and operates as described above, according to this, handling during transportation, storage, etc., while ensuring a minimum volume during transportation and storage before use. On the other hand, it is possible to easily, reliably and safely obtain a diluting solution with a constant concentration by changing to a large volume during use, and it is possible to effectively achieve convenience in handling containers. It is possible to provide a composite container having an excellent effect.

[Brief description of drawings]

FIG. 1 is a perspective view of an outer container showing a first embodiment of a composite container according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a perspective view showing a usage state in the embodiment.

4 is a cross-sectional view taken along the line BB of FIG.

FIG. 5 is a development view of the outer container in the above embodiment.

FIG. 6 is a perspective view showing a state in which the volume of the composite container according to the second embodiment of the present invention has increased.

FIG. 7 is a cross-sectional view showing a state in which the composite container in the second embodiment has the minimum volume.

FIG. 8 is a perspective view showing a usage state of the composite container according to the third embodiment of the present invention.

FIG. 9 is a perspective view of an outer container according to a fourth embodiment of the present invention viewed from the bottom side.

10 is a development view of the outer container shown in FIG.

[Explanation of symbols]

 10 Exterior Container 11 Inner Container 16 Bottom Wall Forming Surface as Extension Flap 27 Mouth Port 30 External Plug 40 First Container Body 41 Second Container Body

Claims (5)

[Claims] 1. An internal container (11) having a volume that is variable according to the volume of contents, and an internal container that accommodates the internal container and that can increase in volume as the volume of the internal container increases. An outer container (10) and a composite container. 2. The exterior container (10) includes an extension flap (16) that is folded inward or outward in a state where the volume of the exterior container is small, and the volume can be increased by sequentially deploying the extension flap. The composite container according to claim 1, wherein the composite container is provided in the. 3. The outer container (10) comprises first and second container bodies (40, 4) which are fitted in a telescopic relationship.
3. The composite container according to claim 1 or 2, which comprises 1) and is provided so that the volume can be increased by sliding these container bodies in mutually separating directions. 4. An inner container (11) having a volume variable according to the volume of the contents, and a partially open type outer container (10) provided so as to surround the mouth of the inner container. ,
The outer container has a size capable of accommodating the inner container in a state where the volume of the inner container is small, and is capable of partially holding the inner container in a state where the volume of the inner container is greatly increased. And a composite container. 5. An outer plug (30) is detachably attached to the mouth (27) of the inner container (11) from the outside of the outer container (10), and the inner container (30) is attached by the outer plug. The composite container according to any one of claims 1 to 4, wherein 11) and the outer container (10) are connected to each other.