JP3860376B2 - Container with reduced structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container for filling and holding liquid substances such as liquid detergents and liquid cosmetics, in particular, a container suitable for filling a liquid substance for refilling, and efficiency in transporting such containers, containers after use It is intended to improve the waste disposal.
[0002]
In recent years, from the viewpoint of saving resources and reducing the amount of garbage, refill containers for refilling only liquid substances have been used on the assumption that a container with a pump sold separately is used as it is.
[0003]
As such refill containers, various types have been proposed so far, such as bag-shaped containers, pouch containers formed by stacking a plurality of thin sheets such as aluminum, or bottle-shaped containers having a specific space shape. Yes.
[0004]
Among the above-mentioned refill containers, in particular, bottle-type containers have high self-supporting properties, so when filling liquids into containers in a continuous line, individual containers are aligned along the line. Therefore, it is possible to perform efficient filling as compared with a bag-like container or pouch container that has almost no independence, and there is an advantage that productivity can be remarkably improved.
[0005]
By the way, such a container having high self-supporting property is bulky because it has a space for filling the liquid material therein, and therefore it is distributed from the production stage of the container to the stage of filling the liquid material in the container. In the process, the containers could not be efficiently transported, and the cost for that was increased, and there was a problem that the containers could not be disposed of in a compact manner even when discarded after being refilled with a liquid material.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to propose a new container that can efficiently transport a container and can be disposed of in a compact state after use.
[0007]
[Means for Solving the Problems]
The present invention provides a container which enables a reduction in the filling volume and reduction of the container body itself by contact with its top and bottom to each other by pressing the container body, the bottom portion of the container body, the container When the main body is reduced, it is connected to the upper portion of the container main body, and a connecting portion is provided on the outer surface of the container main body so that it can be connected to another container. A convex portion projecting to the inner surface side, and a convex portion projecting the central region of the convex portion toward the outer surface side of the container and fitting on the inner surface of the tip of the spout of another container, This is a container having a reduced structure.
[0008]
Further, the present invention is a container that reduces the filling volume by pressing the container body and bringing the upper part and the bottom part into contact with each other to reduce the filling volume. It consists of an ultra-thin material rich in nature, and at the bottom of the container body, it has a connection part that allows connection to the upper part of the container body when the container body is reduced, and allows connection to other containers on its outer surface ,
The connecting portion has a convex portion projecting to the inner surface side so as to be fitted to the shoulder portion of the container body on the inner surface thereof, and a central region of the convex portion projecting toward the outer surface side of the container so that other containers are poured. the form of the convex portion to be fitted in the mouth of the tip inner surface, a container having a reduction structures characterized by and this.
[0009]
In the container having each of the above-described configurations, a convex portion that protrudes toward the inner surface side so as to fit the inner surface of the shoulder portion of the container body, and a central region of the convex portion protrude toward the outer surface side of the container, It shall consist of a convex part fitted in the front-end | tip inner surface of the spout of this container.
[0010]
When the container is made of an ultra-thin material, the amount of the material used is particularly preferably 0.004 to 0.025 g / ml.
[0011]
As the container, a thermoplastic resin such as high-density polyethylene, polyethylene terephthalate, polyethylene naphthalate, or polypropylene can be used.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 shows a configuration of a container having a reduced structure . In the figure, numeral 1 is a container body, 2 is a spout provided on the top of the container body 1, and the spout 2 includes For example, a cap-type cap or a screw-type cap 2a is attached (in the figure, a tap-type cap is illustrated).
[0013]
Further, 3 is a folded portion that enables the container body 1 to be folded in the longitudinal direction (direction from the top to the bottom of the container), and 4 is a connecting portion provided at the bottom of the container body 1, The connecting portion 4 includes a convex portion 4a connected to the inside of the upper portion of the container body 1 and a concave portion 4b connected to another container on the outer surface thereof.
[0014]
When the container having the above structure is pressed from the top and bottom of the container body 1 and brought into contact with each other, the container body 1 is folded by the folded-back portion 3 and the filling volume is reduced by reducing the container body 1 itself. Therefore, as shown in FIG. 2, the convex portion 4 a of the connecting portion 4 is fitted in the inner end of the spout 2, thereby being held in a compact state.
[0015]
Without attaching the cap 2a to the spout 2, the container main body 1 itself is reduced, and as shown in FIG. 3, the tip of the spout 2 is fitted into the recess 4b of the connecting portion 4 of each container. By doing so, it becomes possible to pack the containers in an aligned state, and it is possible to pack more containers in a fixed-volume transport box.
[0016]
The general bottle-shaped container that is usually known uses 0.08g / cc of the material (resin) that composes it, and uses about 50g of resin for 600cc capacity. Although such a container has a relatively thin wall thickness, it cannot be compactly folded by pressing the container itself, and cannot be efficiently transported because it is bulky to transport such containers in large quantities. However, even if it is such a container, by pressing according to the folding | turning part 3, a filling volume can be reduced and it becomes possible to put it together in a compact state.
[0017]
In the case where the container is made of an ultra-thin material rich in flexibility, a pressing force is applied in the longitudinal direction of the container so as to reduce the filling volume without providing the folded portion 3 as described above. Although it can be held in a compact state, it is desirable to provide a folded portion 3 when it is necessary to fold the sheet so as to have regularity.
[0018]
In particular, when the container itself is made of an ultra-thin material, the amount of resin used can be reduced, which has the advantage of saving resources and reducing the amount of garbage.
[0019]
FIG. 4 is an example of a container according to the present invention, with the right half showing its cross section and the left half showing its appearance with the center line in the figure as a boundary.
[0020]
In this example, the container main body 1 is made of an ultra-thin material, and the bottom of the container main body 1 including the shoulder portion 1a and the connecting portion 4 is slightly thickened to give rigidity, and the connecting portion 4 is made into a container. As shown in FIG. 5, the annular convex portion 4 c is formed of an annular convex portion 4 c projecting inward and a convex portion 4 d projecting the central region of the annular convex portion 4 c toward the outside of the container. The main body 1 is fitted to the inner surface of the shoulder 1a.
[0021]
Even in such a container, it is possible to hold the container in a compact manner, and the individual containers can be continuously connected by fitting the convex portion 4d with the inner surface of the tip of the spout of another container. In addition to simplifying the container packing operation, the container can be packed more in the transport box.
[0022]
The container shown in FIG. 4 is an example applied to a structure having a spout with a screw-type cap attached to the outer periphery of the spout 2. In this case, it is important that the convex portion 4d of the connecting portion 4 is not protruded from the bottom of the container so as not to impair the self-supporting property of the container.
[0023]
Each of the containers shown in FIGS. 1 and 4 can be manufactured by applying a preform such as a biaxial stretch blow molding method to a preform previously molded by an injection molding method.
[0024]
When filling a container with a reduced filling volume with a liquid material, first, air or the like having a predetermined pressure is blown into the container body 1 to inflate it, and in that state, the liquid material is passed through the spout 2. 1 is filled.
[0025]
【The invention's effect】
According to the present invention, the seating is good when the filling volume is reduced, and the containers can be arranged regularly, so that the packaging work can be made more efficient and more containers can be put in the transport box. Therefore, the conveyance efficiency is remarkably improved. Moreover, since it can be packed compactly even after the container is used, it is easy to discard. Further, when filling the container with a liquid material or the like, it has regularity unless the mutual connection state between the containers is released, so that it can be transported to a continuous line as it is, and the container can be efficiently supplied.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a container.
2 is a view showing a state where the container shown in FIG. 1 is folded. FIG.
3 is a view showing a state where a large number of containers shown in FIG. 1 are connected. FIG.
FIG. 4 is a diagram showing a configuration of a container according to the present invention.
FIG. 5 is a view showing a state in which the container shown in FIG. 4 is folded.
6 is a view showing a connection state of the containers shown in FIG. 4. FIG.
[Explanation of symbols]
1 Container body
1a Shoulder part 2 Spout part 3 Folding part 4 Connection part
4a Convex
4b recess
4c Annular projection
4d convex

Claims (4)

A container that reduces the filling volume by reducing the container body itself by pressing the container body and bringing the upper part and the bottom part into contact with each other,
At the bottom of the container body, it is connected to the upper part of the container body when the container body is reduced, and provided with a connecting portion that enables connection with other containers on the outer surface thereof ,
The connecting portion has a convex portion projecting to the inner surface side so as to be fitted to the shoulder portion of the container body on the inner surface thereof, and a central region of the convex portion projecting toward the outer surface side of the container so that other containers are poured. A container having a reduced structure, characterized by comprising a convex portion fitted on the inner surface of the tip of the mouth. A container that reduces the filling volume by reducing the container body itself by pressing the container body and bringing the upper part and the bottom part into contact with each other,
This container is made of ultra-thin material with a lot of flexibility,
At the bottom of the container body, it has a connecting part that connects to the upper part of the container body when the container body is reduced, and allows connection to other containers on its outer surface ,
The connecting portion has a convex portion projecting to the inner surface side so as to be fitted to the shoulder portion of the container body on the inner surface thereof, and a central region of the convex portion projecting toward the outer surface side of the container so that other containers are poured. A container having a reduced structure, characterized by comprising a convex portion fitted on the inner surface of the tip of the mouth .   The container having a reduced structure according to claim 2, wherein the amount of the ultra-thin material constituting the container is 0.004 to 0.025 g / ml. Container vessels, with is made of high density polyethylene, polyethylene terephthalate, polyethylene naphthalate or a thermoplastic resin such as polypropylene, the reduction structure according to any one of claims 1 to 3.

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