JPH10278932A - Liquid sealing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid sealing container wherein the container is folded into a reduced form when not in use for saving a space and it can be used with its capacity changed according to a required volume. SOLUTION: The liquid enclosing container made of synthetic resin comprises a vertically stretchable peripheral wall 11 formed with pleats 13, 15 like bellows, an upper end closure plate 21 including a handle 24 and a sealable liquid inlet port 25 and a bottom plate 31. A plane shape of the peripheral wall 11 is circular or elliptic, and inner and outer diameters of the respective pleats 13, 15 are sequentially reduced from upper to lower ones. A slope 33 swelling downward is formed around an outer periphery of the bottom plate 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a liquid enclosing container,
More specifically, the present invention relates to a liquid enclosing container that can be folded and stored / transported when not in use, and whose volume can be changed according to the amount of liquid to be stored.

[0002]

2. Description of the Related Art Conventionally, so-called PET bottles are widely used as containers made of synthetic resin for enclosing beverages and other liquids because they are lightweight and have an appropriate hardness and are easy to handle. Also, an airtight bag made of a synthetic resin film provided with a liquid injection / injection port is used because it can be folded flat when not in use.

[0003] These products can be used, for example, in ordinary households or the like as water bottles or the like for emergency use without usually using them.

[0004]

However, since the former PET bottles and other bottle-shaped containers are bulky, they have a drawback that they take up space during storage. In addition, although the latter is not bulky at the time of storage, its body is flexible, so when it is filled with liquid, its shape is difficult to maintain, requiring careful handling, and it is easy to tear and water leakage may occur. Also,
It must be stored in a rigid box or the like. And the former,
Each of the latter has a limitation in the amount of storage, and there is a problem in that when a small amount is stored in a large capacity, it is bulky and difficult to handle.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. When not in use, it is folded into a reduced form, takes up little space, has a suitable rigidity, and has a required storage capacity. It is an object of the present invention to provide a liquid enclosing container which can be used after being changed to a volume corresponding to the amount of the liquid.

[0006]

[Means for Solving the Problems]

(1) A liquid sealing container made of a synthetic resin, comprising: a vertically extending and contracting peripheral wall having a bellows-like fold, an upper end closing plate having a handle and a sealable liquid inlet / outlet, and a bottom plate. It is.

[Operation] When not in use, by shrinking and folding the vertically expandable and contractible peripheral wall formed with bellows-like folds, it becomes a reduced form, and takes up no space.
It is convenient for transportation, etc., and when used, it can stretch up and down the stretchable peripheral wall with bellows-like folds. Liquid can be accommodated. Because it has a handle, it is easy to carry. Further, the volume can be changed according to the required amount of storage depending on the degree of expansion and contraction of the peripheral wall portion.

(2) The liquid according to (1), wherein the planar shape of the peripheral wall is a circle or an ellipse, and the inner and outer diameters of each fold are sequentially changed from the upper one to the lower one. It is a container for enclosing.

[Operation] Since the plane shape of the peripheral wall portion is a circle or an ellipse, the peripheral wall portion can be smoothly expanded and contracted, and can be easily manufactured by blow molding or the like. Since the inner diameter and outer diameter of each fold were sequentially changed from the upper one to the lower one, when the peripheral wall portion was contracted and folded, the folds (folds = bent corners) were at the same position in the vertical direction. Because they do not overlap, the height when folded is not thick and bulky.

(3) The liquid according to (2), wherein the plane shape of the peripheral wall portion is a circle or an ellipse, and the inner and outer diameters of each fold are sequentially enlarged from the upper one to the lower one. It is a container for enclosing.

[Operation] Since the planar shape of the peripheral wall portion is a circle or an ellipse, the peripheral wall portion can be smoothly expanded and contracted, and can be easily manufactured by blow molding or the like. Because the inner diameter and outer diameter of each fold were sequentially enlarged from the upper one to the lower one, when the peripheral wall was contracted and folded, each fold did not overlap at the same position in the vertical direction, and when folded Since it has a trapezoidal shape and its height does not become thick, it is not bulky, and storage and transportation are performed in a stable state, and a stable state is maintained even during use.

(4) The liquid according to (2), wherein the plane shape of the peripheral wall is a circle or an ellipse, and the inner and outer diameters of each fold are sequentially reduced from the upper one to the lower one. It is a container for enclosing.

[Operation] Since the plane shape of the peripheral wall portion is a circle or an ellipse, the peripheral wall portion can be smoothly expanded and contracted, and can be easily manufactured by blow molding or the like. Because the inner diameter and outer diameter of each fold were reduced sequentially from the upper one to the lower one, when the peripheral wall was shrunk and folded, each fold did not overlap at the same position in the vertical direction, and when folded Since it has an inverted trapezoidal shape and its height does not increase, it is not bulky.

(5) An inclined surface bulging downward is formed on the outer peripheral portion of the bottom plate (1), (2), (3) or (4).
It is a container for liquid encapsulation of item.

[Operation] Since a downwardly swelling inclined surface is formed on the outer peripheral portion of the bottom plate, when the peripheral wall portion is contracted and folded, the folded fold (especially, the fold near the bottom plate).
However, since it fits so as to enter the inner space of the bulging slope, the appearance is good.

(6) An inclined surface bulging upward is formed on the outer peripheral portion of the upper end closing plate (1) (2) (3)
It is a container for liquid encapsulation as described in (4) or (5).

[Operation] Since an upwardly swelling inclined surface is formed on the outer peripheral portion of the upper end closing plate, when the peripheral wall portion is contracted and folded, the folded fold (particularly, the side close to the upper end closing plate). The fold) fits into the inner space of the bulging slope, so that the appearance is good.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of an embodiment of a liquid enclosing container according to the present invention, wherein (a) is a plan view,
(B) is a cross-sectional view taken along the line BB in (a), FIG. 2 is a cross-sectional view showing a state in which the liquid sealing container shown in FIG. 1 is folded, FIG. 4A and 4B show another embodiment of the liquid enclosing container according to the present invention, in which FIG. 4A is a plan view, FIG. 4B is a sectional view taken along line BB in FIG. FIG. 6 is a cross-sectional view showing a state in which the liquid enclosing container is folded, and FIG.

The illustrated liquid enclosing container 1 has a vertically extending and contractible peripheral wall portion 11 formed of a number of folds 13 (inner folds) and 15 (outer folds) formed in a bellows shape, and a handle 24.
An upper end closing plate 21 having a liquid inlet / outlet 25 that can be sealed and a bottom plate 31 are provided. It is integrally formed by blow molding with a synthetic resin material such as polyethylene and polypropylene. A cap 27 or the like is attached to the liquid inlet / outlet 25 by a suitable means such as a screw, and can be sealed.

In the liquid enclosing container 1 shown in FIG. 1, the plane shape of the peripheral wall 11 is a circle or an ellipse, and the folds 13 and 15 are formed.
The inner diameter and the outer diameter are gradually enlarged from the upper part to the lower part.

Therefore, when the peripheral wall portion 11 is contracted and folded, as shown in FIG. 2, each fold (fold = bent corner portion) 1
Since the members 3 and 15 do not overlap at the same position in the vertical direction, they become trapezoidal when folded and their height does not increase.

An inclined surface 33 bulging downward is formed on the outer peripheral portion of the bottom plate 31. Therefore, the peripheral wall 1
As shown in FIG. 2, when the folds 1 and 2 are folded, the folded folds 13 and 15, particularly the folds on the side close to the bottom plate 31, are bulged inclined surfaces formed on the outer peripheral portion of the bottom plate 31 3
3 fits into the inner space, so it looks good.

In the above case, for example, FIG.
As shown in (a) or (b), the folds of the outer fold 15 are arranged such that the equal lines m and n of the bending angle α of the outer fold 15 are directed outward and upward from the horizontal. Is formed,
When the peripheral wall portion 11 is contracted and folded, the folded fold 1
3, 15 and, in particular, its folds are obliquely aligned and the bottom plate 31
This is preferable because it easily enters the inner space of the swelled inclined surface 33 formed on the outer peripheral portion of the slab.

In the liquid enclosing container 1 shown in FIG. 4, the plane shape of the peripheral wall 11 is a circle or an oval, and the inner and outer diameters of the folds 13 and 15 are changed from the upper one to the lower one. On the other hand, it has been reduced sequentially.

Therefore, when the peripheral wall portion 11 is contracted and folded, as shown in FIG. 5, each fold (fold = bent corner portion) 1
Since the members 3 and 15 do not overlap at the same position in the vertical direction, when folded, they have an inverted trapezoidal shape and the height does not increase.

An inclined surface 23 bulging upward is formed on the outer peripheral portion of the upper end closing plate 21. Therefore, when the peripheral wall portion 11 is contracted and folded, as shown in FIG. 5, the folded folds 13 and 15, particularly, the fold surface on the side close to the upper end closing plate 21 are formed on the outer peripheral portion of the upper end closing plate 21. Since it fits so as to enter the inner space of the formed swollen inclined surface 23, the appearance is good.

In the above case, for example, FIG.
As shown in (a) or (b), the folds of the outer fold 15 are so arranged that the equal lines m and n of the bending angle α of the outer fold 15 are directed outward and below the horizontal. Is formed,
When the peripheral wall portion 11 is contracted and folded, the folded fold 1
3 and 15, in particular, the fold surfaces thereof are obliquely aligned, and are preferable because they easily enter the inner space of the bulging inclined surface 23 formed on the outer peripheral portion of the upper end closing plate 21.

The embodiment of the present invention has been described above.
The present invention is not limited to the above-described one, and can be implemented with appropriate modifications and additions.

[0029]

As described above, according to the present invention, when not in use, by shrinking and folding the peripheral wall portion, it becomes a reduced form and takes up little space, which is convenient for storage and transportation. At the time of use, the peripheral wall portion can be extended, and a large amount of liquid can be stored by inserting and sealing the liquid through a sealable liquid inlet / outlet. Because it has a handle, it is easy to carry. Further, the volume can be changed according to the required amount of storage depending on the degree of expansion and contraction of the peripheral wall portion.

Further, when the plane shape of the peripheral wall portion is a circle or an ellipse, the peripheral wall portion can be smoothly expanded and contracted and can be easily manufactured by blow molding or the like. By gradually changing the inner diameter and outer diameter of each fold from the upper one to the lower one by enlarging / reducing, etc., when the peripheral wall portion is contracted and folded, each fold (fold = bent corner portion) Since they do not overlap at the same position in the vertical direction, the height when folded is not thick and bulky.

Further, by forming a bulged inclined surface on the outer peripheral portion of the bottom plate or the upper end closing plate, when the peripheral wall portion is contracted and folded, the folded fold is formed within the bulged inclined surface. Because it fits into the space, it looks good.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of a liquid enclosing container according to the present invention, wherein (a) is a plan view and (b) is a cross-sectional view taken along line BB in (a).

FIG. 2 is a cross-sectional view showing a state in which the liquid filling container shown in FIG. 1 is folded.

FIG. 3 is an end view illustrating the shape of the outer fold 15;

4A and 4B show another embodiment of the liquid enclosing container according to the present invention, wherein FIG. 4A is a plan view, and FIG. 4B is a sectional view taken along line BB in FIG.

5 is a cross-sectional view showing a state where the liquid filling container shown in FIG. 4 is folded.

FIG. 6 is an end view illustrating the shape of the outer fold 15;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid enclosing container 11 Peripheral wall part 13 Fold 15 Fold 21 Upper end closing plate 23 Inclined surface swelling upward 24 Handle 25 Liquid inlet / outlet 31 Bottom plate 33 Inclined surface swelled downward

Claims (6)

[Claims] 1. A liquid sealing material made of synthetic resin, comprising a vertical wall which is formed in a bellows shape and which can be vertically expanded and contracted, an upper end closing plate having a handle and a sealable liquid inlet / outlet, and a bottom plate. Container. 2. The liquid filling device according to claim 1, wherein the planar shape of the peripheral wall portion is a circle or an ellipse, and the inner and outer diameters of each fold are sequentially changed from the upper portion to the lower portion. container. 3. The liquid enclosing liquid according to claim 2, wherein the planar shape of the peripheral wall portion is a circle or an oval, and the inner diameter and the outer diameter of each fold are sequentially enlarged from the upper part to the lower part. container. 4. The liquid filling device according to claim 2, wherein the plane shape of the peripheral wall portion is a circle or an ellipse, and the inner and outer diameters of each fold are sequentially reduced from the upper one to the lower one. container. 5. The liquid filling container according to claim 1, wherein an inclined surface swelling downward is formed on an outer peripheral portion of the bottom plate. 6. The liquid filling container according to claim 1, wherein an inclined surface bulging upward is formed on an outer peripheral portion of the upper end closing plate.