JP2589110Y2 - Refill container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for refilling detergents and shampoos.

[0002]

2. Description of the Related Art Containers such as detergents and shampoos, for example, bottle containers, must be capable of tightly storing and holding contents, capable of being repeatedly opened and closed, and capable of stably and satisfactorily discharging contents. In order to satisfy the requirements such as easy handling, the structure becomes complicated, the production requires many man-hours, and a relatively large amount of material is required to mold one product. Therefore, the product unit price is high.

[0003] In addition, these containers do not lose the function of satisfying the above-mentioned requirements even after the contents have been consumed, and can be reused sufficiently and without inconvenience.

[0004] Further, since these containers are formed of a relatively large amount of synthetic resin material, they become waste, so that the amount of synthetic resin in waste treated by incineration or the like increases. It is one of the factors that makes waste disposal difficult.

[0005] In order to solve these inconveniences, contents such as detergent and shampoo are stored in a refill container using a simple container, and the contents stored in the refill container are transferred to an empty bottle container. The technique of refilling and using it has been well received.

This conventional refillable container has a bag shape made of a synthetic resin sheet and is generally called a stand pouch. The refillable container is extremely low in manufacturing cost and easy to dispose of. Has demonstrated its advantages.

[0007]

However, in the above-mentioned prior art, the opening of the refill container is achieved by cutting the corners of the bag-shaped container with scissors or the like. When the contents are refilled into an empty container, particularly an empty container having a small opening such as a bottle container, there is a problem that the contents spill out of the bottle container.

In addition, since the entire refill container is soft, the entire refill container must be supported by both hands during the refill operation, which makes it difficult to stably hold the bottle container in the upright posture. there were.

[0009] Even if the entire refill container is supported by both hands, the shape of the entire container changes as the outflow of the contents progresses, and the shape of the opening changes with this change. There is a problem that the refilling operation for the bottle container becomes unstable.

[0010] Further, since the refillable container is in the shape of a bag, its self-shape retention ability is extremely low, so that when it is displayed at a store, it is bent and becomes unsightly.
Since stacking is not possible, there is a problem that only a small number of products can be displayed in a certain space.

There is a bag-shaped body that is the main body of the refill container with a spout with a cap of another part attached thereto. However, a refillable container that is a disposable container has a cap-type pouring cap that can be used repeatedly. Providing a mouth
There is a problem that not only the manufacturing cost is unnecessarily increased but also the sealing capacity of the contents may be reduced.

Therefore, the present invention has been devised to solve the above-mentioned problems in the prior art, and has a refilling container having a stable self-shape holding capability and a spout having a constant shape. It is an object of the present invention to provide a simple container for a technical problem, and to achieve simple and stable refilling of contents, and to achieve good and safe handling of transportation, storage, and display.

[0013]

Means of the present invention for solving the above-mentioned technical problems are as follows: the lower end opening edge is provided with an outer flange-shaped flange piece integrally provided around the upper end of a cylindrical body portion; The shoulder of the tapered cylindrical shape with the enlarged diameter is erected continuously, and from the upper end of this shoulder,
A thin container body that is a thermoformed molded product made of a thin synthetic resin sheet and has a thin cylinder body with a short-topped nozzle cylinder piece erected. The container body is tightly welded to the lower surface of a flange piece of the container body. Having a seal film that seals the lower end opening.

[0014] The height of the nozzle cylinder piece in the container body is preferably set to a value smaller than the height of the shoulder.

It is effective to form a stepped portion having an enlarged diameter at the lower end of the body of the container body and to give the body a draft taper whose diameter is reduced upward.

[0016]

The container body is a stretch-formed product formed by thermoforming from a thin synthetic resin sheet, so that the entire body is thin, so that the body is easily elastically bent and deformed by one-hand pressing. At the same time, the shoulder is also easily inverted by pressing down, and is elastically deformed into a form depressed in the trunk.

The filling of the contents into the container main body is achieved by inverting the container main body in a state where the shoulder portion is inverted and depressed in the body portion, and from the lower end opening located above the inverted main body.

After the container body is filled with a fixed amount of contents, the opening at the lower end of the container body is tightly sealed by welding a seal film tightly to a flange piece of the container body, and thus the contents of the container body are sealed. Achieve sealed storage.

In the state where the contents are sealed and stored, since the shoulder portion is inverted and depressed in the body portion, the nozzle cylinder piece does not protrude from the upper end edge of the body portion or protrudes only slightly, so that the containers are stacked one on another. This is possible and the overall height of the container is reduced, so that the storage and storage space is reduced accordingly.

When refilling the contents into empty bottle containers,
By pressing the torso of the container body by holding it with one hand, etc., the internal pressure of the container body is increased, and the shoulder which has been inverted and displaced in the torso is inverted and returned to the upper part with respect to the torso. After returning to the protruding position, the upper end of the nozzle cylinder protruding from the shoulder is cut off with scissors or the like and opened to form a spout for the contents.

The refilling of the contents into a bottle container is achieved by making the opened nozzle tube piece face the mouth of the bottle container or by fitting it into the mouth. Since the refilling of the contents into the bottle container is performed through a cylindrical nozzle tube piece having a fixed shape, the contents are poured out in a stable and favorable form.

After refilling, that is, after all of the contents have been poured out, the whole is crushed flat and discarded in a bulkless state. It is easy to crush the seal film by breaking the seal film at the time of crushing, and the crushing process is also easy because the container body itself is a thin container.

[0023]

FIG. 1 is an overall front view showing an embodiment of a refill container according to the present invention, in which a container body 1 formed by thermoforming a thin synthetic resin sheet and a flange at the lower end opening of the container body 1 are shown. A sealing film 7 sealing the lower end opening of the container body 1 by being tightly welded to the piece 5;
It is composed of

The container body 1 is provided with an outer flange-shaped flange piece 5 at the lower end of the lower end portion expanded through the step portion 6, that is, at the lower end opening, and has a cylindrical body portion slightly reduced in diameter upward. At the top of 2,
A tapered cylindrical shoulder 3 whose diameter is expanded at a steep angle downward is continuously provided, and a nozzle cylinder piece 4 having a short cylindrical shape with a top is provided upright at the upper end of the shoulder 3.

The nozzle tube 4 is a portion that forms a spout for the contents from the refill container to the empty bottle container 8 (see FIG. 4). The height of the nozzle cylinder piece 4 is set to a value smaller than the height b of the shoulder 3.

The reason why the outer diameter of the nozzle barrel 4 is set to a value smaller than the diameter of the mouth of the bottle container 8 is that the contents are refilled while the nozzle barrel 4 is fitted into the mouth of the bottle container 8. In order to be able to perform the operation, the refilling is performed by fitting the nozzle tube piece 4 into the mouth of the bottle container 8 in this manner, thereby achieving a safe refilling process without spilling the contents. be able to.

The reason why the height “a” of the nozzle tube piece 4 is smaller than the height “b” of the shoulder 3 is that the shoulder 3 is elastically inverted and deformed to be depressed in the body 2. Therefore, the upper end edge of the nozzle cylinder piece 4 does not protrude from the upper end edge of the body portion 2 and is surely positioned lower than the upper end edge of the body portion 2.

As described above, by preventing the upper end edge of the nozzle tube piece 4 from protruding upward from the upper end edge of the body portion 2 in the state that the shoulder portion 3 is inverted and deformed, the refilling container as a product can be stacked one on top of the other. This makes it possible to display the refill containers without any inconvenience, and to display a large number of refill containers in a narrow space.

Further, the height of the refill container is set to the height (a
+ B) It is possible to perform storage, transportation, packing and the like while reducing the size by an amount corresponding to + b), and thus it is possible to obtain efficient handling that effectively utilizes space.

Further, the container body 1 is formed in a cylindrical shape in which the body 2 is slightly reduced in diameter upward, and a stepped portion 6 is provided at the lower end of the body.
Is provided, when the container bodies 1 are stacked, the container bodies 1 do not strongly fit each other,
Thereby, the handling of the container body 1 before filling the contents is easy and good.

The container body 1 is made from a 1.50 mm thick single-layer polypropylene sheet having a total height of 160 mm, a height b of the shoulder 3 of 12 mm, and a height a of the nozzle barrel 4 of 10 mm.
The thickness of the shoulder 3 was about 0.37 mm on average when the foam was thermoformed into the structure shown in FIG. 1 for 0 ml, and the portion of the body 2 connected to the shoulder 3, ie, the body 2 Had an average thickness of about 0.16 mm.

As described above, since the thickness of the upper end portion of the body portion 2 is sufficiently reduced, the elastic reversal deformation of the shoulder portion 3 can be easily and stably achieved, and the thickness of the shoulder portion 3 is reduced. Since it is relatively large, the shoulder 3 itself can stably and self-hold its inverted deformation state.

The sheet film 7 for sealing the lower end opening of the container body 1 is made of a synthetic resin having high compatibility with the container body 1 and forms a "seat" of the refill container. Since it also becomes an "overlapping portion" when the refilling containers are stacked, a container having mechanical strength capable of sufficiently supporting the weight of the refilling container is used.

For example, as the seal film 7 to be attached to the 500 ml container body 1, a non-stretched polypropylene layer of 0.06 to 0.08 mm and a nylon of 0.015 to 0.025 mm are sequentially provided from the container body 1 side. Layer, and a polyethylene terephthalate layer having a thickness of 0.012 mm, a drop impact strength test from a height of about 1 m while containing a liquid detergent as a content is performed. As a result of the test, sufficient strength was exhibited without breaking, and stable durability was exhibited even for several (3 to 4) step stacks.

As shown in FIG. 2, the refilling of the contents in the empty bottle container 8 is performed by first applying a pressing force F to the body 2 by, for example, grasping with one hand to increase the internal pressure of the refilling container.
The shoulder portion 3 which has been depressed and deformed by this internal pressure is projected and returned from the inside of the body portion 2.

As shown in FIG. 3, the upper end portion of the nozzle tube piece 4 which has been projected upward by the return of the shoulder portion 3 is cut by scissors or the like to open the upper end of the nozzle tube piece 4. Then, as shown in FIG.
With the upper end of the container facing the mouth of the empty bottle container 8, the contents are refilled while tilting the refill container.

At this time, although the container main body 1 is a thin container, it is basically cylindrical, so that it exhibits a relatively high self-shape holding ability. It does not make the refilling operation difficult.
Further, by inserting the nozzle cylinder piece 4 into the mouth of the bottle container 8, refilling can be achieved more safely.

When the refilling is completed and becomes empty, as shown in FIG. 6, the whole is crushed flat and discarded. At this time, as shown in FIG.
Is broken, the container body 1 can be easily crushed.

The container body 1 and the seal film 7
The molding material is not limited to a single-layer synthetic resin sheet or film, and a laminated sheet or film having required physical properties can be used. It is desirable to provide an appropriate decoration by appropriate printing.

[0040]

[Effects of the Invention] Since the present invention has the above-described configuration, the following effects can be obtained. Since the opening is formed by cutting the upper end of the nozzle tube piece shaped into a short-topped cylinder, the formed opening always has a constant shape, and the nozzle tube itself dispenses the contents. Since the function of guiding the contents to a certain level is exhibited, the contents can be poured out in a fixed form, so that at the time of the refilling operation, the inconvenience of spilling the contents can be completely eliminated, and the refilling can be extremely performed. Can be achieved well.

Since the container body exhibits a relatively high self-shape retention capability, the refill container can be held in a stable state with one hand during the refill operation, thereby obtaining a stable and safe refill operation of the contents. be able to.

Since the container has a stable self-shape retention capability, containers can be stacked one on top of the other, so that a large number of containers can be displayed in an appropriate posture in a narrow space.

Since the shoulder portion is inverted and depressed and displaced in the body, the space can be effectively used, and a suitable and efficient handling can be obtained.

Since the container body is a thermoformed molded product made of a thin synthetic resin sheet, it can be formed by high-cycle molding of a large number of pieces, thereby achieving high production efficiency, achieving cost reduction, and significantly increasing the price of the container. Can be lowered.

Since it is a thin container, after refilling,
Since it is easily crushed flat, it does not become bulky at the time of disposal, so that disposal can be easily and satisfactorily achieved.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is an overall front view of the embodiment shown in FIG. 1, in which only the upper end is broken in a handling state in which contents are accommodated.

FIG. 3 is an overall front view showing a state in which a shoulder is protruded and inverted from the state of FIG. 2;

FIG. 4 is an overall view showing a state where contents are refilled in an empty bottle container.

FIG. 5 is an overall perspective view showing a state in which a seal film is broken after refilling.

FIG. 6 is an overall perspective view showing a state where it is crushed flat.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Container main body 2; Body part 3; Shoulder part 4; Nozzle tube piece 5; Flange piece 6; Step part 7; Seal film 8; Bottle container a; Height of nozzle cylinder piece b; Height of shoulder part F; Pressing force

Claims (3)

(57) [Scope of request for utility model registration] 1. A tapered cylindrical shoulder (3) having a diameter increased downwardly at the upper end of a cylindrical body (2) having an outer flange-shaped flange piece (5) integrally provided around the lower end opening edge. A thin container body which is a thermoformed molded product made of a thin synthetic resin sheet and has a short-cylinder-shaped nozzle cylinder piece (4) erected from the upper end of the shoulder (3). 1) and closely welded to the lower surface of the collar piece (5),
A sealing film (7) for sealing the lower end opening of the container body (1). 2. The height (a) of the nozzle cylinder piece (4) is adjusted to the shoulder (3).
The refill container according to claim 1, wherein the value is set to a value smaller than the height (b) of the container. 3. The method according to claim 1, wherein a step (6) having an enlarged diameter is formed at the lower end of the body (2), and the body (2) is provided with an upwardly tapered withdrawal taper. 3. The refill container according to 2.