JPH03289447A - Container - Google Patents

Abstract

PURPOSE:To provide a container for liquid which eliminates a need to have a large space for storing or transporting the container when it is empty by forming at least a part of the container into a collapsible form using a flexible material, providing a feed port to feed liquid through said port under pressure. CONSTITUTION:A lower half portion 2 of a container 1 is formed into an upwardly expanding, tapered cone and an upper half portion 4 is formed on the upper edge 3 of the portion 2. The upper half portion 4 is formed into a downwardly expanding, tapered bellows-like shape using a flexible material and a feed port 5 is provided on the top of said portion. The portion 4 can be folded into the lower half portion 2 so as to be lapped thereon when the container is empty. To feed liquid into the container 1, the feed port 5 is connected to a liquid feed tank to send a liquid pressurized by a pump, etc., into the container 1.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a packaging container for enclosing a liquid.

[Conventional technology]

There are various types of packaging containers for enclosing liquids, but no matter which material is used, such as paper, plastic, metal, or composite materials, they must have a predetermined volume to accommodate the liquid. It is usually formed into a three-dimensional structure.

Therefore, in order to store and transport these packaging containers, a corresponding amount of space is required.For example, in a vending machine that dispenses drinks by pouring them into cups,
Empty cups are stored in the vending machine and taken out one by one as they are sold, but a fairly large space is required to store the empty cups.

Furthermore, taking a drum as an example, storing and transporting an empty drum requires a space equal to the capacity of the drum.

[Problem to be solved by the invention]

An object of the present invention is to obtain a liquid packaging container that does not require a large space for storage and transportation when empty.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the packaging container of the present invention has at least a portion made of a flexible material so as to be foldable, and is provided with an injection port, through which pressure is applied. When a liquid is poured onto the container, the container expands from its folded state into a container shape, allowing the liquid to be poured into the container.

The lower half of the container is formed into a cup shape, the upper half connected to the lower half is made of a flexible material so that it can be folded into the lower half, and an injection port is provided at the top of the upper half. be able to.

Further, it is advantageous to form the foldable portion in a bellows shape.

[Effect]

In the packaging container of the present invention, when the container is empty and does not contain liquid, the foldable portion made of a flexible material is folded, so that the packaging container becomes small and does not take up much space, and can contain liquid. In this case, by injecting liquid under pressure through the injection port, the folded portion rises up as the liquid is filled, and the whole takes the shape of a container.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1a is a longitudinal sectional side view of one embodiment of the present invention in a folded state, FIG. 1 is a plan view thereof, and FIG. 1C is a side view in a state in which a liquid is sealed.

Reference numeral 1 denotes a packaging container, the lower half 2 of which is formed in the shape of a conical cup that opens upward, and the upper half 4 is connected to the upper edge 3 of the lower half 2. The upper half 4 is made of a flexible material and is formed into a conical bellows shape that opens downward, and an inlet 5 is provided at the top of the upper half. It is designed to be superimposed on the inner surface of.

In addition, a part 6 of the bottom of the lower half 2 is made to protrude inward so that when the containers are stacked, the inlet of the other container can be inserted into it, or when used as a cup of a vending machine. It is also possible to insert supplements such as milk, sugar, etc. into this cavity.

When filling a liquid into the packaging container 1, connect the inlet 5 of the upper half 4 to a liquid supply tank and feed the liquid under pressure with a pump or the like into the container 1. The section 4 rises and finally the lower half section 2 as shown in Fig. 1C.
The shape of the container is completed with the upper half 4 continuing on top.

When the container 1 is emptied using the liquid filled in it, the upper half 4 can be pushed down and the upper half 4 will be turned over again and folded onto the inner surface of the lower half 2. It becomes compact.

Figures 2a and 2b are perspective views of another embodiment of the invention in the folded and liquid-filled states, respectively.

Reference numeral 21 denotes a packaging container, which is entirely formed into a cylindrical bellows shape or a bellows shape, and has an injection port 22 at its top. In the folded state, the distance between the bellows portions 23 is reduced as shown in FIG. 2a, and the container assumes a flat shape. Inlet 2
When liquid is pressurized from 2, the mutual spacing between the bellows parts 23 increases as shown in FIG. 2, forming a container shape, which can contain a predetermined amount of liquid.

FIGS. 3a and 3b are perspective views of another embodiment of the invention in a folded state and a liquid-filled state, respectively.

31 is a packaging container, which is shaped like an accordion or bellows as a whole, similar to the example shown in Figure 2, but instead of being cylindrical, it tapers toward the top and tapers slightly at the bottom, giving it a unique design. The difference is that it has a certain amount of change.

32 is an injection port, and 33 is a bellows portion.

FIGS. 4a and 4b are perspective views of another embodiment of the present invention in a folded state and a liquid-filled state, respectively.

A packaging container 41 has a lower half 42 shaped like a hemispherical cup, and an upper half 44 connected to its upper edge 43. The upper half 44 is formed of a flexible material into a hemispherical shape, and an inlet 45 is provided at the top of the upper half 44. When the upper half 44 is empty and not filled with liquid, it is folded inward and overlapped on the inner surface of the lower half 42. , the container will be shaped like a bowl. When filled with liquid, the upper half 44 and lower half 42 form one spherical container.

FIGS. 5a and 5b are perspective views of another embodiment of the present invention in a folded state and a liquid-filled state, respectively.

51 is a packaging container formed in the shape of a rectangular parallelepiped, and the top surface 52 is provided with an injection port 53; the wide side surface 54 is provided with a valley fold line 55 extending horizontally in the center; A mountain fold line 5 following the valley fold line 55 is provided in the center on the side surface 56 of the
7 and a valley fold line 58 sandwiched between the double mountain fold line 57 extends horizontally, and a valley fold line 60 extends from the intersection 59 of the double mountain fold line 57 and the valley fold line 58 to each vertex of the side surface 56. is extending.

In an empty state without being filled with liquid, the container 51 is folded along the above-mentioned fold lines and has a flat shape. When liquid is forced in through the inlet 53, the sides 54,56 open to take the shape of a container.

Various materials can be used for packaging containers,
Paper, plastic, metal, composite materials thereof, etc. can also be used for the flexible material portion.

〔Effect of the invention〕

According to the present invention, since the packaging container can be folded when it is empty and not filled with liquid, it does not require a large space for storage and transportation, and the opening of the container has a small opening. Since there is only one entrance, there is little risk of impurities entering from the outside world, and it is easy to seal.
It can be extremely advantageously applied to various uses.

[Brief explanation of drawings]

1A and 1B are a vertical sectional side view and a plan view of an embodiment of the present invention in a folded state, FIG. FIGS. 3a and 3b are perspective views of another embodiment of the present invention in a folded state and a liquid-filled state, respectively; FIGS. Figures a and b are perspective views of another embodiment of the present invention in a folded state and a liquid-filled state, respectively;
b is a perspective view of yet another embodiment of the present invention in a folded state and in a liquid-filled state; 1.2131.41.51...Packaging container 2.42...
・Lower half 4.44...Upper half 5.22.32.45.53...Inlet 23.33・
... Concert part 54.56 ... Side surface 55.56.58.60 ... Valley fold line 57 ... Mountain fold line α) Fig. 2 α) Fig. 3 Fig. 4

Claims (1)

[Scope of Claims] 1) A packaging container for enclosing liquid, at least a portion of which is made of a flexible material so that it can be folded, and which is provided with an injection port, and which can be folded by injecting liquid under pressure through the injection port. 1. A packaging container that is expandable from a closed state into a container shape to enclose a liquid therein. 2) The lower half is formed into a cup shape, the upper half connected to the lower half is made of flexible material so that it can be folded into the lower half, and an injection port is provided at the top of the upper half. The packaging container according to claim 1, characterized in that: 3) The packaging container according to claim 1 or 2, wherein the foldable portion is formed into a bellows shape.