JP2006089133A - Spout for refilling container and refilling container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an excellent spout for a refilling container which can connect the refilling container with a main container certainly and improves easiness in refilling, and provide the refilling container. <P>SOLUTION: In the spout for the refilling container 5A to store contents for refilling which is filled in the main container 30 having a thread 34 on the external surface 33 of a tubular opening 32, a thread 47 to be screw-fitted to the thread 34 provided on the external surface 33 of the tubular opening 32 of the main container 30 is provided on the internal surface of a tube 42. By this, without changing a structure of the tubular opening 32 of the main container 30, the refilling container 5A can be connected with the main container 30 certainly. Further by providing a tube 45 capable of being inserted into the tubular opening 32 of the main container 30 in the tube 42 of the spout, leaking out of the contents on the periphery of the tubular opening 32 of the main container 30 can be prevented surely. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a spout for a refill container that stores the contents to be refilled to be filled in a main body container, and a refill container including the spout.

In recent years, in order to save resources, when the remaining amount of contents filled in a container such as a plastic bottle is reduced and emptied, the contents may be replenished and the container may be reused. As such a refill container for filling the contents for refilling, a soft packaging pouch is widely used because it is easy to reduce the volume at the time of disposal. In addition, in order to distinguish the container by the side filled with the contents from the refill container, it may be called a main body container.
When refilling the contents from the refill container to the main body container, there is a container that can be connected by fitting the refill container and the main body container so that the refill container is not overturned or spilled. It has been.
For example, according to the container described in Patent Document 1, the cylindrical opening of the refill container is inserted inside the cylindrical opening (mouth and neck) of the main body container, and protrudes from the outer surface of the cylindrical opening of the refill container. By fitting the fitted protrusion into the inner surface of the cylindrical opening of the main body container, the refill container and the main body container are connected.
Further, according to the container described in Patent Document 2, the refill container and the main body container are provided on the inner surface of the cylindrical opening of the main body container by providing a screw that allows the outer surface of the cylindrical opening of the refill container to be screwed together. Is realized.
JP 2000-313422 A JP 2000-313423 A

In the case of the refill container described in Patent Document 1, the refill container and the main body container are connected by simply inserting the fitting protrusion of the refill container into the smooth inner surface of the cylindrical opening of the main body container. Even in such a state, there is a risk that the refill container may come out (detach) from the main body container.
In the case of the container described in Patent Document 2, it is necessary to change the provision of a screw on the inner surface of the cylindrical opening on the main body container side. There are drawbacks such as high costs, and it has not been widely used.
Furthermore, in both Patent Documents 1 and 2, when a cap is used as the lid of the refill container, it is necessary to provide a screw for screwing the cap onto the outer surface of the cylindrical opening of the refill container. The inner diameter of the cylindrical opening of the container becomes smaller and disadvantageous for refilling the contents.

  The present invention has been made in view of the above circumstances, and provides an excellent spout for a refill container and a refill container that can reliably connect a refill container to a main body container and have improved ease of refill. This is the issue.

In order to solve the above-mentioned problem, the present invention is a spout for a refill container for storing a refill content to be filled in a main body container having a screw on the outer surface of a cylindrical opening, Provided on the inner surface is a screw for refilling a spout for a refill container, wherein a screw that is screwed with a screw provided on the outer surface of the cylindrical opening of the main body container is provided.
The spout for a refill container according to the present invention may employ a configuration in which the spout has a tubular body that can be inserted into the cylindrical opening of the main body container.
The refill container spout includes a cap provided with a screw on the inside as a lid for closing the cylindrical portion, and a screw that engages with a screw of the cap is provided on the outer surface of the cylindrical portion. It is also possible to adopt a configuration.
The refill container spout can also employ a configuration provided with a cap provided on the outer surface with a screw that engages with a screw provided on the inner surface of the cylindrical portion, as a lid for closing the cylindrical portion. .
The refill container spout includes a lid integrally connected to the top surface of the cylindrical portion through a thin portion as a lid for closing the cylindrical portion, and this lid is formed by breaking the thin portion. It is also possible to employ a configuration that can be detached from the cylindrical portion.

Further, the present invention is a refill container for storing the contents for refill filled in the main body container having a screw on the outer surface of the cylindrical opening, and the refill container is provided with the above-described refill container spout. A refill container characterized by the above is provided.
In the refill container of the present invention, it is possible to adopt a configuration in which the refill container is a flexible pouch.

According to the present invention, since the cylindrical portion of the refill container is screwed onto the outside of the cylindrical opening of the main body container, there is no risk that the refill container will come off from the main body container, and the refill container is securely attached to the main body container. Can be linked to. For this reason, when the main body container and the refill container are connected, the descending contents and the ascending air flow without blocking each other, and the contents smoothly flow down to the main body container.
By replacing the contents on the refill container side with the air on the main body container side, the internal volume of the refill container is maintained by the contents and air. Even when applied to a pouch having flexibility, wrinkles and breakage are unlikely to occur, and effects such as reduction of residual liquid and shortening of refill time can be obtained. Moreover, since no change is required on the side of the main body container, the implementation is easy. And the outstanding advantage that the content transferred to the main body container from the refill container can be surely prevented from leaking outside the cylindrical opening of the main body container is obtained.
In addition, since the outer surface side of the cylindrical portion of the refill container does not interfere with the cylindrical opening of the main body container, the degree of freedom in designing the lid for closing the cylindrical portion of the refill container can be improved. It is possible to employ a lid according to the purpose.

  In the case where a tubular body that can be inserted into the cylindrical opening of the main body container is provided in the cylindrical portion, the refill container can be more reliably connected to the main body container even if the total weight of the refill container is large. . And, of course, it is possible to surely prevent the contents transferred from the refill container to the main body container from leaking to the outside of the cylindrical opening of the main body container. Is inserted inside the cylindrical opening of the main body container, so that the contents transferred from the refill container to the main body container do not remain between the cylindrical portion of the refill container and the cylindrical opening of the main body container. . Therefore, not only during refilling work, but also when removing the refill container from the main body container after the work is completed, the excellent advantage of preventing the contents from leaking out and surrounding the cylindrical opening of the main body container is obtained. .

In the case of the spout for a refill container according to claim 3, it is not necessary to change the inner diameter of the cylindrical portion of the refill container as a lid of the refill container, thereby ensuring a wide flow path. This is advantageous for refilling the contents.
In the case of the spout for a refill container according to claim 4 and 5, since it is possible to minimize the expansion of the outer periphery of the cap from the outer periphery of the cylinder portion, the contents when the refill container is a flexible pouch The degree to which the spout gets in the way when the product is filled or transported or stored in an empty bag is reduced.

  When the refill container of the present invention is a flexible pouch, the spout can be molded in a separate process from the pouch, so that the structure of the spout becomes more complicated than a bottle in which the spout and the body are molded integrally. However, it is easy to manufacture, and it is possible to flexibly respond to structural changes that accompany various needs and manufacturing conditions. In addition, since the refill container emptied by refilling is flexible, the pouch can be easily folded and reduced in volume, and has excellent discardability.

The present invention will be described below with reference to the drawings based on the best mode.
FIG. 1 is a view showing an example of a spout for a refill container according to the present invention, in which FIG. 1 (a) is an external view, and FIG. 1 (b) is an exploded view showing a state where a spout body and a lid are separated. 1 (c) is a longitudinal sectional view of the spout body. Fig.2 (a) is a front view which shows the principal part of the refill container provided with the spout for refill containers shown in FIG. FIG.2 (b) is sectional drawing which shows the principal part of the state which screwed the refill container shown to Fig.2 (a) with a main body container.

As shown in FIGS. 1 and 2, the refill container spout 1 </ b> A (hereinafter sometimes simply referred to as a spout) according to the present embodiment includes a base 7 that is sealed by a pouch 6 of the refill container 5, and a pouch from the base 7. The spout main body 3 comprised by the cylinder part 2 protruded outward of 6 is provided. In the cylinder portion 2, a flow path is opened through which the refill contents (not shown) filled in the pouch 6 are discharged.
When filling the pouch 6 with the contents, the contents can be filled from the flow path of the cylindrical portion 2 as in the case where the refill container is a bottle. Alternatively, the spout body 3 is provided in the pouch 6 in advance, and an opening for filling is provided in the pouch 6 by an unsealed portion between the films, etc., and the opening on the pouch 6 side is heated after filling the contents. It may be sealed with a seal or the like.

It is desirable that the cylindrical portion 2 be sealed when the refill container 5 is filled with contents and circulates. The method may be provided with a lid or a seal. In the spout 1A of this embodiment, a cap 4 having a screw (not shown) formed on the inner surface is provided as a lid for closing the cylindrical portion 2. For this reason, the outer surface 8 of the cylinder part 2 is provided with a screw 9 screwed with the screw on the inner surface of the cap 4. The cap 4 is detachably attached to the cylindrical portion 2, and the cap 4 is rotated by rotating the cap 4 relative to the cylindrical portion 2 as indicated by an arrow A in FIG. 2 can be removed. On the contrary, after opening the cylinder part 2, it is also possible to attach the cap 4 to the cylinder part 2 again and close it.
In addition, when a film etc. are sealed on the top | upper surface 12 of the cylinder part 2, and the cylinder part 2 is sealed, the screw 9 and the cap 4 of the outer surface 8 of the cylinder part 2 can be abbreviate | omitted.
In the present embodiment, the base 7 of the spout body 3 has a shape that expands to the left and right along one end edge of the pouch 6, and is easily welded to the edge of the opening of the pouch 6.

The main body container 30 includes a body portion 31 and a cylindrical opening portion 32 protruding from the body portion 31. On the outer surface 33 of the cylindrical opening 32, for example, a cap or a cap provided with a nozzle with a pump (not shown; hereinafter may be simply referred to as “cap or the like”) is screwed to the cylindrical opening 32. A screw 34 is provided.
The inner surface 10 of the cylindrical portion 2 of the spout 1A is provided with a screw 11 that is screwed with a screw 34 provided on the outer surface 33 of the cylindrical opening 32 of the main body container 30. Needless to say, the screw 34 on the main body container 30 side is a male screw (that is, an outward thread), and the screw 11 on the spout 1A side is a female thread (that is, an inward thread).
The spout 1A of this embodiment can be molded by injection molding using a thermoplastic resin, for example. Examples of the thermoplastic resin include polyolefins such as polyethylene and polypropylene.
Although the outer diameter of the cylindrical opening part 32 of the main body container 30 is not specifically limited, If an example is given, it will be about 29 mm, for example. The inner diameter of the cylindrical portion 2 of the spout 1 </ b> A is larger than the outer diameter of the cylindrical opening 32 of the main body container 30 due to at least the height of the screws 11 and 34. As shown in FIG. 2B, the gap between the outer surface 33 of the cylindrical opening 32 on the main body container 30 side and the inner surface 10 of the cylindrical portion 2 on the spout 1A side is narrowed by a screw thread. Liquid leakage during refilling can be suppressed.

Although the refill container 5 of this embodiment may be a bottle or the like, it is preferable to provide the spout 1A described above at the opening of a flexible pouch.
The pouch 6 is composed of one or a plurality of flexible films. The form of the pouch is not particularly limited, but a three-sided bag, a four-sided bag, a pillow-type packaging bag with a back-stick, a standing pouch, a gusset bag, a square bottom bag, a tube-shaped bag, a bag-in-box inner bag For example, it can be selected from various forms.
Although it does not specifically limit as a film which comprises the pouch 6, A laminated body provided with a sealant on at least one side, for example, polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), cyclic A polyolefin resin layer such as polyolefin is used as the innermost layer (sealant), and a stretched film such as a biaxially stretched nylon film, biaxially stretched polyethylene terephthalate film, or biaxially stretched polypropylene film is used as the base material. A laminate film having a polymer, a vapor deposition layer of metal or an inorganic compound (for example, ceramic such as silica), or a metal foil such as aluminum foil as an intermediate layer can be used.
These films are flexible and foldable, are convenient for transportation and storage when empty, are not bulky after use, and are excellent in volume reduction and disposal. In order to suppress deterioration and deterioration of the contents, it is preferable to use a film having low permeability to oxygen and water vapor. From this viewpoint, a film including a layer made of a metal or an inorganic compound (ceramic or the like) is preferable.
The sealant of the film is desirably provided at least on the inner surface side of the pouch 6, and in this case, the spout is attached to the opening of the pouch by welding the thermoplastic resin on the outer surface of the spout body 3 and the sealant of the pouch 6. It becomes possible.

An example of how to use the refill container 5 provided with the spout 1A of this embodiment will be described.
When the content of the main body container 30 is reduced and the remaining amount is exhausted, the cap and the like of the main body container 30 are removed to expose the outer surface 33 of the cylindrical opening 32. Further, the cap 4 is removed from the spout body 3 on the refill container 5 side. The main body container 30 is turned over so that the refill container 5 is positioned approximately obliquely above the main body container 30 (or the main body container 30 is the refill container 5), and the screw 34 on the outer surface 33 of the cylindrical opening 32 of the main body container 30 The screw 11 of the inner surface 10 of the cylinder part 2 of the refill container 5 is screwed together. After connecting the cylindrical opening 32 of the main body container 30 and the cylindrical portion 2 of the refill container 5 in this way, the entire refill container 5 is positioned above the main body container 30 as shown in FIG. The contents (not shown) filled in the pouch 6 of the refill container 5 flow down into the main body container 30 by its own weight and are filled.

In the spout of the present embodiment, no air vent is provided, but even in a closed space where the main body container 30 and the refill container 5 are connected by screws, the cross-sectional area of the connection portion is the air in the main body container 30 and the refill container 5. The passage space is secured for the contents to circulate with each other, and the descending contents and the rising air can be interchanged without blocking each other. Accordingly, during the refilling operation, in particular, the operation of squeezing out the contents of the pouch is unnecessary, and the refilling time can be shortened.
Since the internal volume of the pouch is not changed while the contents on the refill container 5 side and the air on the main body container 30 side are exchanged, wrinkles and folds are not generated in the pouch, and the remaining liquid in the refill container 5 is reduced. In addition, since the self-supporting property can be maintained without collapsing the pouch, after the refill container 5 and the main body container 30 are connected with screws, the refill container 5 does not bend or fall down. Therefore, during refilling, the posture can be maintained only by the rigidity of the main body container 30 and the self-supporting nature of the refilling container 5, and there is no need for the operator to manually support the refilling container 5. Therefore, as shown in FIG. 2 (b), after the refill container 5 is set on the main body container 30, it can be left unattended until the contents have been dropped.

When the contents are sufficiently filled in the main body container 30, the refill container 5 is removed from the main body container 30 by rotating the screws 11 and 34 in a direction opposite to that when the screws 11 and 34 are screwed together. Further, the cap or the like is attached to the cylindrical opening 32 of the main body container 30. In this way, it is possible to easily refill the contents from the refill container 5 to the main body container 30.
The refill container 5 that has been emptied by refilling can be easily folded and reduced in volume because the pouch 6 is flexible. Therefore, it is excellent in discardability.

According to the spout and the refill container of the present embodiment, the refill container is screwed into the main body container with screws, so that the refill container can be reliably connected to the main body container. Moreover, since no change is required on the side of the main body container, the implementation is easy.
Since the cylindrical portion 2 of the refill container 5 is screwed into the outside of the cylindrical opening 32 of the main body container 30, a wide flow path for the contents to be transferred from the refill container to the main body container can be secured. It is advantageous.
Furthermore, in the case of the spout and the refill container of the present embodiment, the cap can be detachably screwed with the screw formed on the outer surface of the cylindrical opening.

Next, a second embodiment of the refill container spout of the present invention will be described.
FIG. 3 is a drawing showing a spout of a second embodiment, FIG. 3 (a) is an external view, FIG. 3 (b) is an exploded view showing a state in which the spout body and the lid are separated, and FIG. ) Is a longitudinal sectional view of the spout.
The spout 1B includes a lid 14 that is integrally connected to the top surface 12 of the cylindrical portion 2 through a thin portion 13 instead of the cap 4 of the first embodiment as a lid for closing the cylindrical portion 2. ing. The lid 14 is formed with a tab 15 projecting sideways.
In the case of this spout 1B, as shown by an arrow B in FIG. 3 (b), by pushing up or pulling up the tab 15 with respect to the spout body 3, the thin portion 13 can be broken and the cylindrical portion 2 can be opened. .
When resealability is required in the spout of this embodiment, the cylindrical portion 2 is extended to above the thin portion 13 (in other words, the thin portion 13 is provided in the middle of the cylindrical portion 2). It is good to comprise so that the cylinder part by the side of the lid | cover 14 and the cylinder part by the side of the spout main body 3 can be fitted after a fracture | rupture. If comprised in this way, the lid | cover 14 can be pushed in into the cylinder part 2 from the top by the flexibility of the thin part 13 and the cylinder part 2. FIG.

Also in the spout and refill container of the second embodiment, as with the spout and refill container of the first embodiment, the refill container is screwed into the main body container with screws, so the refill container is securely connected to the main body container. The effect that it can do is acquired.
Furthermore, in the case of the present embodiment, the spout body and the lid can be formed integrally, so that there is no risk of the spout lid loosening or falling off in the refill container, and the effect of improving productivity can be obtained.
And it can prevent that the upper part of a spout bulges by making the extension direction (leftward in a figure) of the tab 15 correspond with the direction where the base 7 of the spout main body 3 is extended.

Next, the 3rd example of the spout for refill containers of this invention is demonstrated.
FIG. 4 is a drawing showing a spout of a third embodiment, wherein FIG. 4 (a) is an external view, FIG. 4 (b) is an exploded view showing a state where the spout body and the lid are separated, and FIG. ) Is a longitudinal sectional view of the spout body.
The spout 1 </ b> C includes a fitting cap 16 that fits on the outer surface of the cylindrical portion 2 instead of the screw-type cap 4 of the first embodiment as a lid for closing the cylindrical portion 2. In this example, as a fitting portion for fitting the spout body 3 and the cap 16, an annular protrusion 17 that fits the inner surface of the cap 16 is provided on the outer surface of the cylindrical portion 2. The structure of the fitting portion is not particularly limited to this, and a plurality of protrusions may be used instead of the annular convex portion, or an annular concave portion is provided on the outer surface of the cylindrical portion 2, and the cap A convex portion that fits into the annular concave portion of the cylindrical portion 2 may be provided on the inner surface of the cylindrical portion 2. Further, an annular recess that fits to the outer surface of the cap may be provided in the upper part of the inner surface of the cylindrical portion 2, and a thin cap may be inserted by providing a protrusion that fits to the outer surface of the cap.
In the case of the spout 1C, as shown by an arrow C in FIG. 4 (b), the cap 16 is pushed up or pulled up with respect to the spout body 3, thereby disengaging the cap 16 and the cylindrical portion 2 of the spout body 3. Can be opened.
Similarly to the spout and refill container of the first embodiment, the refill container is screwed into the main body container with screws, so that the refill container is securely connected to the main body container. The effect that it can do is acquired.

Next, the 4th form example of the spout for refill containers of this invention is demonstrated.
FIG. 5 is a drawing showing a spout of a fourth embodiment, wherein FIG. 5 (a) is an external view and FIG. 5 (b) is a partially cutaway sectional view.
This spout 1D is used as a lid for closing the cylindrical portion 2, instead of the screw-type cap 4 of the first embodiment, with respect to the cylindrical base 18 mounted on the outer surface of the cylindrical portion 2 via a hinge 19. A connected lid 20 is provided. The lid 20 has an engaging portion 21 that engages with an end edge of the cylindrical portion 2 at a position facing the hinge 19 in the radial direction of the cylindrical portion 2 (left and right direction in FIG. 5B).

In the case of the spout 1D, as shown by an arrow D in FIG. 5B, when the lid 20 is pushed up or pulled up with respect to the spout body 3, the lid 20 is rotated about the hinge 19, The spout body 3 can be opened by being disengaged from the cylindrical portion 2.
Also in the spout and the refill container of the fourth embodiment, similarly to the spout and the refill container of the first embodiment, the refill container is screwed into the main body container with screws, so that the refill container can be securely attached to the main body container. The effect of being able to be connected is obtained, and the cap can be opened and closed with one touch, and the cap is not lost at the time of opening.

Next, a fifth embodiment of the refill container spout of the present invention will be described.
FIG. 6 is a drawing showing a spout of a fifth embodiment, where FIG. 6 (a) is an external view, FIG. 6 (b) is an exploded sectional view showing a state in which the spout body and the lid are separated, and FIG. c) is a longitudinal sectional view of the spout.
As shown in FIG. 6, the spout 1 </ b> E includes a cap 22 having a screw 23 on the outer surface as a lid for closing the cylindrical portion 2. That is, the cap 22 has a plug portion 24 inserted into the cylindrical portion 2 of the spout body 3 and a flange portion 25 protruding from the end portion of the plug portion 24, and is provided on the outer surface of the plug portion 24. The screw 23 is screwed with the screw 11 of the inner surface 10 on the spout body 3 side. Thereby, the cap 22 is detachably attached to the spout body 3. As shown in FIG. 6A, the flange portion 25 is exposed to the outside of the cylindrical portion 2 with the cap 22 attached to the spout body 3.
As the exposed state of the flange portion 25, it is preferable that the flange portion 25 bulges outward in the circumferential direction of the cylindrical portion 2 in terms of easy opening and closing, but from the viewpoint of making the spout compact, it bulges as much as possible. Preferably not. Even if the flange does not bulge, it can be opened and closed by, for example, providing a concave part where a finger or a finger can be inserted on the outer top surface of the cap, or providing a non-slip material such as a knurled surface on the outer peripheral surface of the flange part 25. Can be made easy.

Further, in the cap 22 of the present embodiment, as shown in FIG. 6C, the inside of the plug portion 24 has a hollow cylindrical shape, and the tip portion 26 of the plug portion 24 is the cylindrical portion 2 of the spout body 3. It is adapted to be fitted into an inner ring portion 27 formed inside. Here, the inner ring portion 27 includes an annular groove portion 28 into which the distal end portion 26 of the plug portion 24 is inserted, and an annular convex portion 29 that protrudes along the inner surface of the plug portion 24. In a state where the cap 22 is closed and the plug portion 24 is inserted into the cylindrical portion 2, the tip end portion 26 of the plug portion 24 is in close contact with the annular groove portion 28 and the annular convex portion 29, and as a result, the refill container is attached to the inner ring portion 27. It can be sealed liquid-tight.
In order to achieve a liquid-tight seal, instead of providing the annular groove 28 inside the cylindrical portion 2 and inserting the tip portion 26 of the plug portion 24, an annular recess is provided on the lower surface of the flange portion 25 to May be configured to be inserted.

In the case of this spout 1E, by rotating the cap 22 with respect to the spout body 3 as shown by an arrow E in FIG. The ten screws 11 can be unscrewed and opened.
Also in the spout and refill container of the fifth embodiment, similarly to the spout and refill container of the first embodiment, the refill container is screwed into the main body container with screws, so that the refill container can be securely attached to the main body container. The effect that it can connect is acquired.
Furthermore, according to the spout of the fifth embodiment, the screw 11 provided on the inner surface of the cylindrical portion 2 of the spout body 3 fulfills two functions of screwing with the cap 22 and screwing with the main body container 30. The screw on the outer surface of the cylindrical portion 2 of the spout body 3 can be omitted to make a smooth cylindrical surface, and the appearance of the spout is good.

Next, a sixth embodiment of the refill container spout of the present invention will be described.
FIG. 7 is a drawing showing a sixth embodiment of the spout for a refill container of the present invention, wherein (a) is an external view of the spout body, (b) is a longitudinal sectional view of the spout body, and (c) is a cap. It is an external view, (d) The external view which shows the state which screwed together the spout main body and the cap. FIG. 8: is sectional drawing which shows the principal part of the state which screwed together the refill container provided with the spout of the 6th form example with the main body container.

As shown in FIGS. 7 and 8, the refill container spout 40 according to this embodiment (hereinafter sometimes simply referred to as a spout) includes a base 41 sealed by the pouch 6 of the refill container 5A, and a pouch from the base 41. 6 is provided with a spout body 43 constituted by a cylindrical portion 42 protruding outward.
In the present embodiment, the base 41 of the spout body 43 has a shape that expands to the left and right along one end edge of the pouch 6, and is easily welded to the edge of the opening of the pouch 6.

The tip portion 42 a of the cylindrical portion 42 of the spout body 43 has a larger diameter than the portion 42 b on the base portion 41 side of the cylindrical portion 42, and the cylindrical portion of the main body container 30 is located inside the distal end portion 42 a of the cylindrical portion 42. A tubular body 45 that can be inserted into the opening 32 is provided coaxially with the distal end portion 42 a of the cylindrical portion 42. A gap 46 for receiving the cylindrical opening 32 of the main body container 30 is provided between the tube body 45 and the front end portion 42a of the cylindrical portion 42, and the main body container is provided on the inner surface of the front end portion 42a of the cylindrical portion 42. A screw 47 that is screwed with a screw 34 provided on the outer surface 33 of the 30 cylindrical opening 32 is provided.
The screw 34 on the main body container 30 side is a male screw (that is, outward thread), and the screw 47 on the spout 40 side is a female thread (that is, inward thread).

In the spout body 43, a flow path 48 is formed through which the refill contents (not shown) filled in the pouch 6 are discharged. The channel 48 passes through the base 41 and passes through the inside of the tube body 45. In order to rectify the flow of the contents, ribs 48 a and 48 a extending along the flow path 48 are projected from the inner surface of the portion on the base 41 side of the flow path 48.
In the case of the spout 40 of FIG. 7, the diameter of the portion 42 b on the base 41 side of the cylindrical portion 42 is substantially equal to the diameter of the tube body 45. In this case, the flow path 48 in the cylindrical portion 42 has the same diameter at the distal end portion 42a and the portion 42b on the base portion 41 side. In the present invention, the diameter of the portion 42b on the base 41 side of the cylindrical portion 42 may be substantially equal to the diameter of the distal end portion 42a of the cylindrical portion 42, or the diameter of the distal end portion 42a of the cylindrical portion 42 and the tube body. It may be an intermediate diameter between 45 and 45.

  When filling the pouch 6 with the contents, the contents can be filled from the flow path 48 of the spout body 43 as in the case where the refill container is a bottle. Alternatively, the spout body 43 is provided in the pouch 6 in advance, and an opening for filling is provided in the pouch 6 by an unsealed portion between the films, etc., and the opening on the pouch 6 side is filled by heat sealing after filling the contents. May be sealed.

It is desirable that the flow path 48 of the spout body 43 be sealed when the refill container 5A is filled with contents and circulates. The method may be provided with a lid or a seal. In the spout 40 of this embodiment, as shown in FIG. 7C, a cap 49 having a screw 49a formed on the outer surface of a cylindrical end portion 49b is used as a lid for closing the flow path 48 of the spout body 43. Is provided.
The cap 49 can be detachably attached to the spout body 43 by inserting an end portion 49 b including a screw 49 a into the gap 46 between the tube portion 42 of the spout body 43 and the tube body 45. That is, by rotating the cap 49 with respect to the cylindrical portion 42, the cap 49 can be removed from the cylindrical portion 42. Conversely, after opening the cylindrical portion 42, the cap 49 is attached to the cylindrical portion 42 again. It can also be closed.

Further, the spout 40 has a band portion 44 connected to the upper end of the cylindrical portion 42 via a breakable probe portion 44b for preventing falsification (pill fur proof), and the cap 49 is removed from the spout body 43. Sometimes the bridge portion 44b is broken and the band portion 44 is dropped together with the cap 49, so that it is possible to easily identify whether or not the spout 40 has been opened.
In this example, the bridge portion 44b is provided at a plurality of locations with gaps 44a in the circumferential direction at the upper end of the cylindrical portion 42, and the band portion 44 and the cylindrical portion 42 are integrally connected via the bridge portion 44b. Has been. A plurality of fins 44c (see FIG. 7B) project from the inner surface of the band portion 44, and plate-like protrusions 49c (FIG. 7C) provided on the upper portion of the cylindrical end portion 49b of the cap 49. ))).
When the cap 49 is first screwed into the spout body 43, the fins 44c and the protrusions 49c can be elastically deformed, so that the fins 44c can get over the protrusions 49c and rotate the cap 49. After being screwed to 43, the protrusion 49c and the fin 44c are engaged with each other, and the rotation of the cap 49 with respect to the band portion 44 is prevented.
When the cap 49 is twisted strongly at the time of opening, the gap 44a is expanded by the convex portion 44d protruding downward from the lower end of the band portion 44, the bridge portion 44b is broken, and the band portion 44 can be rotated with respect to the cylindrical portion 42. Can be opened.

The refill container 5 </ b> A of the present embodiment is formed by providing the spout 40 described above at the opening of a flexible pouch 6. About the structure of the pouch 6 used for the refill container 5A, since it is the same as that of the pouch 6 used for the above-mentioned refill container 5, the overlapping description is abbreviate | omitted.
The spout 40 according to the present embodiment can be molded by, for example, injection molding using a thermoplastic resin. Examples of the thermoplastic resin include polyolefins such as polyethylene and polypropylene.

An example of how to use the refill container 5A provided with the spout 40 of this embodiment will be described.
When the content of the main body container 30 is reduced and the remaining amount is exhausted, the cap and the like of the main body container 30 are removed to expose the outer surface 33 of the cylindrical opening 32. Further, the cap 49 is removed from the spout body 43 on the refill container 5A side.
The main body container 30 is turned over so that the refill container 5A is positioned approximately obliquely above the main body container 30 (or the main body container 30 is the refill container 5A), and the screw 34 on the outer surface 33 of the cylindrical opening 32 of the main body container 30 The screw 47 on the inner surface of the cylindrical portion 42 of the refill container 5A is screwed. After connecting the cylindrical opening 32 of the main body container 30 and the cylindrical portion 42 of the refill container 5A in this way, the entire refill container 5A is positioned above the main body container 30 as shown in FIG. The contents (not shown) filled in the pouch 6 of the refill container 5A flow down into the main body container 30 due to their own weight.

In the spout 40 of the present embodiment, no air vent is provided, but even in a closed space where the main body container 30 and the refill container 5A are connected by screws, the cross-sectional area of the connection portion is the air in the main body container 30 and the refill container 5A. As a flow path space for circulating the contents of each other, the descending contents and the rising air can be interchanged without interfering with each other. Accordingly, during the refilling, an operation for squeezing out the contents of the pouch is unnecessary, and the refilling time can be shortened.
Since the internal volume of the pouch does not change while the contents on the refill container 5A side and the air on the main body container 30 side are switched, wrinkles and folds do not occur in the pouch, and the remaining liquid in the refill container 5A decreases. In addition, since the independence can be maintained without the pouch being crushed, after the refill container 5A and the main body container 30 are connected with screws, the refill container 5A does not bend or fall down. Therefore, during refilling, the posture can be maintained only by the rigidity of the main body container 30 and the self-supporting nature of the refilling container 5A, and the operator does not need to support the refilling container 5A by hand. Therefore, as shown in FIG. 8, after the refill container 5 </ b> A is set on the main body container 30, the hands can be released and left until the contents have been dropped.
Moreover, according to the refill container 5 </ b> A using the spout 40 of this embodiment, the tube body 45 is inserted inside the cylindrical opening 32 of the main body container 30, so that the inner surface of the cylindrical portion 42 and the cylinder of the main body container 30 are It is ensured that the contents transferred from the refill container 5 </ b> A to the main body container 30 leak to the outside of the cylindrical opening 32 of the main body container 30 without intruding the contents between the outer surface of the cylindrical opening section 32. An excellent advantage that it can be prevented is obtained.

When the contents in the main body container 30 are sufficiently filled, the screws 34 and 47 are relatively rotated in the direction opposite to that when they are screwed together, and the refill container 5A is removed from the main body container 30. Further, the cap or the like is attached to the cylindrical opening 32 of the main body container 30. In this way, it is possible to easily refill the contents from the refill container 5A to the main body container 30.
The refill container 5A emptied by refilling can be easily folded and reduced in volume because the pouch 6 is flexible. Therefore, it is excellent in discardability.

  According to the spout and the refill container of this embodiment, the refill container is screwed into the main body container with a screw, so that the refill container can be securely connected to the main body container, and there is no change on the main body container side. Is not necessary and is easy to implement. Furthermore, in the case of the spout and the refill container of this embodiment, since the tube body 45 is inserted inside the cylindrical opening 32 of the main body container 30, the contents to be transferred from the refill container to the main body container are the tubes of the refill container. An excellent advantage is obtained in that it does not remain between the portion and the cylindrical opening of the main body container, and the contents can leak out and the surroundings of the cylindrical opening of the main body container can be reliably prevented.

INDUSTRIAL APPLICATION This invention can be utilized for the refill container which stores the content for refill with which a main body container is filled. The refill container is preferably a pouch provided with a spout in terms of disposability, but if it is a container having a spout, the spout may be applied to a bottle, a box, a can, etc. provided integrally or separately from the container body. It is possible and not particularly limited.
The contents are not particularly limited as long as the contents are refilled, and examples thereof include liquids such as shampoos and body soaps and viscous substances.
In addition, depending on the material configuration and form of the pouch, refilling work can be performed in a state in which the hand is released, and refilling work can be facilitated, and user convenience can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is drawing which shows the 1st form example of the spout for refill containers of this invention, Comprising: (a) is an external view, (b) is an exploded view which shows the state which isolate | separated the spout main body and the lid | cover, (c) is a spout main body. FIG. (A) It is a front view which shows the principal part of the refill container provided with the spout for refill containers shown in FIG. (B) It is sectional drawing which shows the principal part of the state which screwed the refill container provided with the spout shown in FIG. 1 with the main body container. It is drawing which shows the 2nd example of the spout for refill containers of this invention, Comprising: (a) is an external view, (b) is an exploded view which shows the state which isolate | separated the spout main body and the lid | cover, (c) is a spout of It is a longitudinal cross-sectional view. It is drawing which shows the 3rd example of the spout for refill containers of this invention, Comprising: (a) is an external view, (b) is an exploded view which shows the state which isolate | separated the spout main body and the lid | cover, (c) is a spout main body. FIG. It is drawing which shows the 4th example of a spout for refill containers of this invention, Comprising: (a) is an external view, (b) is a partial notch sectional drawing. It is drawing which shows 5th example of the spout for refill containers of this invention, Comprising: (a) is an external view, (b) is an exploded sectional view which shows the state which isolate | separated the spout main body and the lid | cover, (c) is a spout. FIG. It is drawing which shows the 6th example of the spout for refill containers of this invention, Comprising: (a) is an external view of a spout main body, (b) is a longitudinal cross-sectional view of a spout main body, (c) is an external view of a cap, d) It is an external view which shows the state which screwed together the spout main body and the cap. It is sectional drawing which shows the principal part of the state which screwed together the refill container provided with the spout shown in FIG. 7 with the main body container.

Explanation of symbols

1A, 1B, 1C, 1D, 1E ... Spout for refill container (spout), 2 ... cylinder, 4 ... cap (lid), 5 ... refill container, 6 ... pouch, 8 ... outer surface of cylinder, 9 ... screw, DESCRIPTION OF SYMBOLS 10 ... Inner surface of a cylinder part, 11 ... Screw, 12 ... Top surface of a cylinder part, 13 ... Thin part, 14 ... Lid, 16 ... Cap (lid), 20 ... Lid, 22 ... Cap (lid), 30 ... Main body container 32 ... cylindrical opening, 33 ... outer surface of cylindrical opening, 34 ... screw, 40 ... spout for refill container (spout), 42 ... cylindrical portion, 45 ... tube, 47 ... screw, 49 ... cap (lid) ), 49a... Cap screw.

Claims (7)

A spout for a refill container for storing the contents for refill filled in a main body container having a screw on the outer surface of the cylindrical opening,
A spout for a refill container, characterized in that a screw that engages with a screw provided on an outer surface of a cylindrical opening of the main body container is provided on the inner surface of the cylindrical portion of the spout.   The spout for a refill container according to claim 1, wherein the spout has a tubular body that can be inserted into a cylindrical opening of the main body container.   The refill container spout includes a cap provided with a screw on the inside as a lid for closing the cylindrical portion, and a screw that engages with a screw of the cap is provided on the outer surface of the cylindrical portion. The spout for a refill container according to claim 1 or 2.   The said refill container spout is provided with the cap which equips the outer surface with the screw screwed together with the screw provided in the inner surface of the said cylinder part as a lid | cover for closing the said cylinder part. 2. A spout for a refill container according to 2.   The refill container spout includes a lid integrally connected to the top surface of the cylindrical portion through a thin portion as a lid for closing the cylindrical portion, and this lid is formed by breaking the thin portion. The spout for a refill container according to claim 1 or 2, wherein the spout can be detached from the cylindrical portion. A refill container for storing a refill content to be filled in a main body container having a screw on the outer surface of a cylindrical opening,
A refill container, wherein the refill container is provided with the spout for a refill container according to any one of claims 1 to 5.   The refill container according to claim 6, wherein the refill container is a flexible pouch.

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