JP2014213930A - Refilling cap, and packaging container having the cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refilling container, and a container with high viscosity having means for reliably fitting a container to be refilled and capable of refilling reliably without any coming-out or leakage even if injection force is increased and capable of refilling reliably without soiling the hand of an operator, and making the refilling operation easy and capable of being inexpensively manufactured.SOLUTION: A refilling cap comprises: upper and lower openings; a refilling fitting part (11) formed at one opening for being fitted on the mouth of a refilling container (2); and a container fitting part (13) formed at the other opening for fitting in the mouth of a container (3) to be refilled. The refilling cap is characterized in that the individual fitting parts communicate with each other in the cap, and in that an opening blade (12) is disposed at the mouth edge of the refilling container for breaking a seal film.

Description

  The present invention relates to a refill cap for use when refilling a refill container from a refill container to a refill container in a container containing a liquid or a viscous body (viscous body) such as liquid seasonings, food oils, liquid sweeteners, and liquid cosmetics. The present invention relates to a packaging container having the cap.

Containers for liquids that contain liquid cosmetics such as lotions, lotions, shampoos, rinses, conditioners, etc., liquid oils such as olive oil, and liquid seasonings such as wine vinegar should be as clean as possible. It is required to prevent alteration due to the entry of.
In particular, conventionally, a simple bag-like container composed of a sheet such as a standing pouch has been often used for refilling.
However, it is difficult to insert the cut spout of the refill container into the filling container mouth, and many of the contents to be refilled have high viscosity, so it takes time to refill and refills the filling container mouth. Maintaining the inserted state of the cut out spout of the container for a long time would be a very laborious task. In addition, if it is forced to push out from the refill pouch, it is easy to cause a problem of overflowing and leaking, and there has been a demand for a method for easily and reliably refilling the refill container into the refill container. .

On the other hand, in Patent Document 1, a container mounting portion that can be mounted on a mouth portion of a container provided with a film opening means that protrudes from the mouth opening, and the mouth opening abuts against the mouth opening when mounted on the previous container The cap with a storage part which has the storage part which closed the opening part opened to the part opening side with the shrink film is proposed.
However, since it is housed in a part of the cap, squeeze property can hardly be expected, so such filling can be done because the viscosity is low and the contents can easily flow into the filling container if it opens Can only be used for There is also a problem that the capacity is difficult to increase.

In patent document 2, it is a refillable container which has the container for refill contents separately which consists of the flexible sheet | seat which formed the plastic sheet layer or the plastic sheet layer containing metal foil heat-sealed to the opening | mouth part of the extraction | pouring member. The refillable container has a sheet cutting blade and a hole for injecting and venting the contents, and the inner diameter is larger than the outer diameter of the pouring material of the refillable contents container. We have proposed an easily refillable container fitted with an inner stopper.
However, this easily refillable container is made of a flexible package, so it can be used for contents with high viscosity. However, since the container is connected via a special inner plug, the diameter of the container for refill contents is considerably small. I had to be.
In addition, the hole through which the refill content container and the refillable container communicate with each other at the time of refilling is small, and it is very difficult to refill the high-viscosity content, and it takes time to refill. In addition, if you try to push the refill contents in a hurry, or if you push the refill contents container strongly and try to eject the contents, the refill contents container and the refillable container are simply inserted. Therefore, there is a risk that the contents may easily come off and the contents may leak out, causing problems in terms of workability and cost.

Japanese Utility Model Publication No. 5-68865 Japanese Utility Model Publication No. 5-71152

  In view of the above problems, the refilling container and the container to be refilled are securely fitted, and even if the injection force is slightly increased due to the high viscosity, the operator does not come off or leaks, and the operator gets his hands dirty. Without having a means to be able to refill without fail. An object of the present invention is to obtain a cap as a refill member that can be easily refilled and can be produced at low cost.

The cap for refilling of Claim 1 of this invention has an opening part up and down, has a refill fitting part fitted in the opening part of the container for refilling in one opening part, and is in the other opening part. A refilling cap having a container fitting portion that fits into a mouth portion of a container to be refilled,
Each of the fitting portions communicates with each other in the cap, and has an opening blade that breaks the seal film provided at the mouth of the refill container inside.

  The refill cap according to claim 2 of the present invention is a refill cap characterized in that a straight rising is provided at the base of the opening blade.

  The refill cap according to claim 3 of the present invention is a refill cap characterized by having a protective fitting portion into which the mouth of the refill container fits inside the container fitting portion.

  The refill cap according to claim 4 of the present invention is a refill cap characterized in that the refill fitting portion and the container fitting portion have the same fitting shape.

  The refill cap according to claim 5 of the present invention is a refill cap characterized in that an air hole communicating with the outside of the refill fitting portion is provided between the protective fitting portion and the container fitting portion. .

  A sixth aspect of the present invention is a packaging container having the refill cap according to any one of the first to fifth aspects.

The refill cap according to the present invention ensures that the refill container and the container to be refilled are fitted, and even if the injection force is slightly increased, the fitting does not come off or leak.
Since the inside plug is not attached or removed, the refilling operator does not get his hands dirty and is easy. And since it can manufacture by integral molding by injection molding, it can manufacture at low cost.
In addition, there are no restrictions on the diameters of the refill container and the container to be refilled, and the communication passage that fits into each spout has a blade that breaks the seal film, allowing a large opening. Thus, there is an effect that refilling can be performed easily and reliably in a short time.

FIG. 1-1 is a cross-sectional view showing an example of a refill cap according to the present invention. FIG. 1-2 is a cross-sectional view showing another example. It is sectional drawing of the state filled into the container which receives refilling from the container for refilling using the cap for refilling of this invention. It is a top view of the cap for refilling seen from the refilling side of this invention. It is a top view of the cap for refilling seen from the container side of this invention. It is a perspective view of the cap for refilling and the container seen from the refilling side of this invention. It is a perspective view of the cap for refilling seen from the container side of this invention. It is sectional drawing which shows the form which the cap for refilling of this invention fits and distribute | circulates to the container for refilling. It is sectional drawing which shows the state which is fitting the container which receives refilling to the side which receives the refilling of the cap for refilling of this invention, and is fitting the container for refilling to the refilling side of the cap for refilling of this invention. It is sectional drawing which shows the state which has fractured | ruptured the sealing film provided in the spout of the refill container fitted to the refill cap of this invention with the blade inside the refill cap. The contents inside the refilling container are refilled with the spout of the refilling container fitted to the refilling cap of the present invention opened, and the container to be completely refilled and the refilling container in communication with each other. It is sectional drawing which shows the state with which the container side is filled. In another Example of the refill cap of this invention, it is sectional drawing which shows the filling state by the example with the same shape of the mouth of the container for refilling and the container which receives refilling. It is sectional drawing which shows another Example of the cap for refilling of this invention.

Hereinafter, embodiments of the refill cap of the present invention will be described in detail with reference to the drawings.
A refill cap used in the embodiment is shown in FIG. The refill cap 1 is used by being attached to the mouth of a flexible container such as an extruded tube on the refill container side.
This refill cap has openings on the top and bottom, and has the same fitting shape on both sides. In other words, the refill fitting portion 11 that can be fitted to the mouth of the refill container is disposed on the refill side, and the protective fitting portion 110 is disposed on the container side facing each other in the same fitting shape. In the figure shown in FIG. 1, the fitting portion is an internal screw to be screwed. Of course, it may be a stopper type fitting part.
Further, a sharp opening blade 12 is provided lower than the refill fitting portion 11 on the refill side, that is, the mouth side of the refill container. The opening blade 12 has a role of breaking the sealing film fused to the tip of the spout of the refill container 2. The shape of the opening blade 12 may be a saw blade. A communication hole 121 is provided around the opening blade 12 so that the top and bottom of the refill cap 1 communicate with each other.

  Another example of the refill cap used in the embodiment is shown in FIG. A straight rising 122 is provided at the base of the opening blade 12 to prevent the sealing film from adhering to and blocking the communication hole 121 portion of the opening blade 12 when the seal film 21 is broken.

On the container side, that is, on the side opposite to the side where the opening blade 12 is provided, a container fitting portion 13 is provided in accordance with the mouth of the container 3 to be refilled.
In addition, a receiver 15 for receiving the leaked contents is provided on the front side. This receptacle 15 is only required to be a standing wall because it is received only when the contents leak like a funnel, but it may be omitted.
A contact ring 16 is provided between the refill fitting portion 11 and the opening blade 12. Of course, an inner ring may be used, but since the sealing film interferes, it is desirable to seal only at the end face. If the outlet of the refill container 2 can be securely fixed to the refill cap 1 with the contact ring 16, the contents will not leak out quickly even if a strong pressure is applied to the refill container 2 and forced out. Can be refilled.

FIG. 2 shows a situation where the contents 4 are refilled using the refill cap 1 of the present invention.
A refill container 2 is attached to the refill fitting part 11, and a container 3 to be refilled is attached to the container fitting part 13. The container 3 to be refilled is on the lower side, and the refill container 2 is on the upper side.
The seal film 21 provided at the spout of the refill container 2 is broken by the opening blade 12, and the contents 4 are poured out from the broken hole and refilled into the container 3 to be refilled. Is shown.
If there is no seal film 21 provided at the spout of the refill container 2, the refill container 2 may be spilled when the spout of the refill container 2 is lowered. On the other hand, when the refill container 2 is placed on the lower side, the spout of the container 3 to be refilled is directed downward. At this time, if any previous contents remain, it may spill out. Therefore, it is important to fuse the sealing film 21 to the spout of the refill container 2.
Therefore, it is necessary to devise such that the sealing film 21 can be fitted in the refilling container 2 spout in a fused state and the sealing film 21 can be broken inside the refilling cap 1.

When the refilling container 2 and the container 3 to be refilled are fixed to the refilling cap 1 and the refilling operation is performed, the air hole 14 is interposed between the inner protective fitting portion 110 and the outer container fitting portion 13. If it is provided, the air inside the container 3 to be refilled is well removed and the contents 4 can be refilled smoothly. Since the air hole 14 is provided at the bottom of the receiver 15, even if the content 4 leaks from the air hole 14, it spills into the receiver 15, so there is no problem.
Further, the presence of the air holes 14 allows the air inside the container 3 to be refilled to escape and to be easily filled in accordance with the refilling speed of the contents 4 naturally without applying excessive force.
In particular, the place through which the air passes and the place through which the contents 4 pass are separated by the protective fitting portion 110, so that the contents and air are clogged in the middle, or the contents 4 leak from the air holes 14. It is hard to put out.

FIG. 3 is a plan view of the refill cap 1 of the present invention as viewed from the rear side, that is, from the filling receiving side.
The unsealing blade 12 is thinly provided in the center, and a communication hole 121 through which the front and rear of the refilling cap 1 communicate is provided around the opening blade 12.
Although four air holes 14 are provided around the protective fitting portion 110, it is desirable to disperse them in all directions as much as possible so that the air can be easily removed regardless of the inclination at the time of refilling.

FIG. 4 is a plan view of the refill cap 1 according to the present invention as seen from the refill side, that is, the filling side.
An opening blade 12 for breaking the seal film 21 is provided on the front side in the center of the refill fitting portion 11. This blade breaks the sealing film 21 so as not to enter a container filled with a part of the sealing film 21, but it is necessary to prevent the blade from being cut out as much as possible. For this reason, it is preferable that the contents 4 are not cut so sharply but are simply opened to allow the contents 4 to flow out.

FIG. 5A is a perspective view of the refilling cap 1 of the present invention as viewed from the refilling side, that is, the filling side. Since the unsealing blade 12 inside the refill fitting part 11 is in a lowered position, it is hardly damaged. In addition, the receiving portion 15 is set higher so that it is safer. The refill container can be placed with the refill cap upright.
As seen in FIG. 5B, in the state that is normally sold, the cap 1 for the refill container 2 also serves to protect the seal film 21 of the refill container.

  FIG. 6 is a perspective view of the refill cap 1 according to the present invention as seen from the container side, that is, the side to be refilled.

FIG. 7 is a cross-sectional view of the vicinity of the spout of FIG.
A seal film 21 is attached to the spout of the refill container 2 and protected with a cap. When refilling, first, the refill cap 1 is removed from the refill container 2.

  In FIG. 8, the refill cap 1 removed from the refill container 2 in FIG. 7 is fitted into the mouth of the container 3 to be refilled. That is, the container fitting portion 13 is fitted to the three mouths of the container to be refilled. And the mode that the refill fitting part 11 is fitted in 2 mouths of the refill container is represented with sectional drawing.

  FIG. 9 is a cross-sectional view of the next step of FIG. 8, showing a state in which the refill fitting portion 11 is fitted to the mouth of the refill container 2 and the seal film 21 is broken by the opening blade 12. ing.

FIG. 10 is a cross-sectional view of the next step of FIG. 9, in which the refill fitting portion 11 is fitted to the mouth of the refill container 2, and the seal film 21 is broken by the opening blade 12. As a result, the refilling container 2 and the container 3 to be refilled communicate with each other through the communication hole via the refilling cap 1 and filling is started.
When the content 4 flows from the communication hole 121 around the opening blade 12, the content 4 enters the inside of the container 3 to be refilled through the protective fitting portion 110.
If the air in the container 3 that is to be refilled is not evacuated, the pressure inside the container 3 that will be refilled will increase, so the contents will be refilled further. Will not enter the interior of the receiving container 3. Therefore, a volume of air comparable to the capacity to be filled must be removed from the container 3 to be refilled.
If the air hole 14 is provided between the protective fitting part 110 and the rear fitting part 13, the air inside the container 3 to be refilled efficiently escapes without interfering with the passage of the communication hole 121 to be filled. Thus, the contents 4 are refilled smoothly.
Moreover, even if the contents leak from the air hole 14, the surroundings are not soiled because there is the receiver 15.

FIG. 11 shows a refill cap when the refill container 2 mouth and the refill container 3 mouth have the same shape.
In this case, the protective fitting portion 110 and the rear fitting portion 13 are the same, and thus have a simple shape. However, since the air hole 14 is not provided inside the refill cap, there still remains a problem that problems such as a long filling time are likely to occur.

  FIG. 12 shows an example in which the difference in diameter between the two-mouthed container for refilling and the three-necked container for refilling is not so large. Although it is possible to cope with the problem, the length of the refill cap 1 becomes shorter, and the same problem as in FIG. 11 remains.

As a material used for the cap 1 for refilling of this invention, the comparatively hard material whose bending rigidity is 1000 MPa-2000 MPa is preferable. For example, polypropylene, high density polyethylene resin, ethylene / propylene copolymer resin, acrylonitrile / butadiene resin, polymethyl methacrylate resin, polyethylene terephthalate resin, polystyrene resin,
Polystyrene resin, acrylonitrile resin, acrylonitrile / styrene resin, acrylonitrile / butadiene / styrene resin, polyphenylene resin and the like can be used.

  The refill container 2 is preferably a soft and extrudable container. For example, a laminated tube having a body using a multilayer sheet such as polyethylene / paper / polyethylene / aluminum foil / polyethylene / polyamide / polyethylene, and a shoulder formed by compression molding using a multilayer tablet, polyamide / polyethylene, etc. Multi-layer extrusion tube with multi-layer blow molding, multi-layer extrusion tube with a multi-layer body using a modified extrusion of polyethylene / ethylene / vinyl alcohol copolymer / polyethylene and a shoulder heat-molded by injection molding, A thin blow molded container such as polyethylene / ethylene / vinyl alcohol copolymer / polyamide / polyethylene can be considered, but a pouch or paper container may be used as long as it has a mouth.

  The container 3 to be refilled may be a plastic bottle, a glass bottle, or a metal bottle. Although it is better if the fitting with the refill cap is reliable, it is usually a dedicated refill cap so that other contents are not accidentally refilled. Therefore, the cap for refilling is usually made disposable.

The refilling cap 1 of the present invention is as described above, and is obtained simply by injection molding. Therefore, the productivity is high, the assembling process is simple, and it can be manufactured at low cost.
Moreover, it can be sold as a protective cap for a refill container, and can be easily refilled by removing the cap 1 for refilling, setting it in reverse, and fitting it into the container 3 to be refilled, without worrying about leakage. .
Furthermore, since the refilling speed can be increased by increasing the pressure on the side of the refilling container 2, the merit of the present invention is great, such as enabling refilling quickly.

DESCRIPTION OF SYMBOLS 1 ......... Refill cap 11 ... Refill fitting part 110 ... Protection fitting part 12 ... Opening blade 121 ········ Communication hole 122 ················································································· ... Receiver 16 ... Contact ring 2 ... Refill container 21 ... Seal film 3 ... Refill Container 4 to receive ... Contents

Claims (6)

A container having a top and bottom opening, a refill fitting part that fits into the mouth of the refill container in one opening, and a mouth that fits into the mouth of the container that is refilled in the other opening A refill cap having a fitting portion,
A refill cap characterized in that each fitting portion communicates with each other in the cap, and has an opening blade for breaking the seal film provided at the mouth of the refill container.   The refilling cap according to claim 1, wherein a straight rising is attached to the base of the opening blade.   The refilling cap according to claim 1 or 2, further comprising a protective fitting portion into which the mouth portion of the refilling container is fitted inside the container fitting portion.   The refill cap according to claim 1 or 2, wherein the refill fitting portion and the container fitting portion have the same fitting shape.   The refill cap according to claim 3 or 4, wherein an air hole communicating with the outside of the refill fitting portion is provided between the protective fitting portion and the container fitting portion.   A packaging container comprising the refill cap according to claim 1.