JP5948133B2 - Refill container - Google Patents

Description

  The present invention relates to a refill container.

2. Description of the Related Art Conventionally, a refill container including a container main body that stores contents to be refilled in the present container and a mounting cylinder that is mounted on the mouth of the container main body as described in Patent Document 1 below is known. .
In this refill container, the contents of the container body are placed in the main container by screwing the mounting cylinder and the injection port of the main container so that the refill container is in an inverted posture with the mouth of the container body facing downward. It can be refilled inside. At this time, the air in the container flows into the container body of the refill container, that is, the contents in the refill container are replaced with the air in the container, so that the contents are refilled. Yes.

JP 2000-159249 A

  However, the above-described conventional refill container has room for improvement in further improving the replacement efficiency between the contents of the refill container and the air in the main container.

  The present invention has been made in view of such circumstances, and provides a refill container that can improve the replacement efficiency between the contents of the refill container and the air in the main container, thereby enabling the refill operation to be performed in a short time. The purpose is to do.

In order to solve the above problems, the present invention proposes the following means.
The present invention is a refill container comprising a container main body in which contents to be refilled in the main container are accommodated, and a mounting cylinder attached to the mouth of the container main body, the mounting cylinder being a part of the main container. It has a dispensing cylinder part inserted into the filling port part, and the dispensing cylinder part communicates with the inside of the container body, and when this refill container is attached to the main container and is in a refilling posture, the formed spout disposed inlet portion of the container, the inside of the container body along the axial direction of the container of the spout in the hollow mounting said spout tube portion of circling the container axis However, a helical content guide portion extending in the container axial direction is formed.

When refilling the contents from the refill container according to the present invention into the main container, the refill container is inserted into the injection port of the main container, and the refill container and the main container are combined. Refill posture. In this refilling posture, the spout of the dispensing tube portion of the refill container is disposed in the inlet portion of the container.
When the refill container is placed in an inverted posture with the mouth of the container body facing downward, the contents of the container body pass through the mounting cylinder and from the spout of the dispensing cylinder into the inlet of the container. It is drained and refilled in this container.

  According to the present invention, since the helical content guide part is formed in the mounting cylinder, the content flowing inside the mounting cylinder is circulated around the container axis while being guided by the content guide part. Then, it flows out in a spiral shape from the spout into the inlet of the container. The contents that flow out in this way flow along the peripheral wall of the inlet portion by the action of centrifugal force, while the air in the container can be sent to the refill container at the radial center of the inlet portion. An air flow path is formed.

That is, when the contents are refilled, the contents of the refill container flow in the vicinity of the peripheral wall in the inlet portion of the container and go into the container, and the air in the container is in the radial center in the inlet portion. It goes to the refill container through the air flow path.
This prevents the contents and air from interfering with each other in the inlet portion of the container, thereby improving the efficiency of replacement of the contents and air (that is, refilling efficiency), and shortening the refilling operation in a short time. Can be done.

  Further, in the refill container of the present invention, a plug body that blocks communication between the spout and the container body and is movable in the container axial direction is provided in the mounting cylinder, When the refill container is attached to the main container and is in the refill position, the refill container is pushed by the injection port part of the main container or the push-in part provided in the refill container, It is good also as canceling | releasing interruption | blocking of communication.

  In this case, before the refill container is attached to the main container, the communication between the spout and the inside of the container body is blocked by the stopper, so that leakage of contents can be prevented even when the refill container is in an inverted position. . Then, when the refill container is attached to the main container to make the refill posture, the plug body is pushed in and the disconnection of the communication between the spout and the container body is released, so that the replacement efficiency is improved as described above. However, it is possible to prevent the contents from spilling during the refilling operation.

  Moreover, the refill container of this invention WHEREIN: It is good also as being connected with the said extraction cylinder part via the weakening part which can break | disconnect the cover body which obstruct | occludes the said spout.

  In this case, when refilling the contents of the refill container into the main container, the spout is opened by breaking the weakened portion and removing the lid from the pour cylinder. In other words, before the refilling operation is performed, the spout is closed by the lid, so that the contents of the refill container can be prevented from being deteriorated or altered, and mixed with other substances.

  According to the refill container according to the present invention, the replacement efficiency between the contents of the refill container and the air in the main container can be improved, whereby the refill operation can be performed in a short time.

It is a longitudinal cross-sectional view which shows the principal part of the refill container which concerns on one Embodiment of this invention. It is the figure which looked at the content guide part of the refill container of FIG. 1 from the inner side of the container main body along the container axial direction. It is a figure explaining the procedure which removes a cover body from the refill container of FIG. It is a figure explaining the procedure which combines the refill container of FIG. 1 and this container, and refills the contents from a refill container to this container. It is a longitudinal cross-sectional view which shows the modification of the principal part of the refill container of FIG. FIG. 6 is an exploded view of the refill container of FIG. 5. It is a longitudinal cross-sectional view which shows the principal part of this container which refills the contents from the refill container of FIG. FIG. 8 is a diagram illustrating a procedure for refilling the contents from the refill container into the main container by combining the refill container of FIG. 5 and the main container of FIG. 7. It is a longitudinal cross-sectional view which shows the modification of the principal part of the refill container of FIG. It is the figure which looked at the content guide part of the refill container of FIG. 9 from the inner side of the container main body along the container axial direction.

Hereinafter, the refill container 1 which concerns on one Embodiment of this invention is demonstrated with reference to drawings.
As shown in FIG. 1, the refill container 1 of the present embodiment includes a container main body 2 in which contents are stored, and the contents are transferred from the container main body 2 to a separate main container 30 (see FIG. 4). It refills things.
The refill container 1 includes the container body 2 and a mounting cylinder 3 that is mounted on the mouth 2a of the container body 2. The mounting cylinder 3 has an extraction cylinder part 4 inserted into the injection port part 31 of the container 30, and the extraction cylinder part 4 communicates with the inside of the container body 2 to inject contents. The spout 5 to take out and the cover body 6 which obstruct | occludes this spout 5 so that opening is possible are formed.
In addition, the container main body 2, the mounting cylinder 3, and the lid body 6 have their respective central axes arranged on a common axis. In this embodiment, this common axis is referred to as a container axis O, the lid 6 side along the container axis O direction is the upper side (outside of the container body 2 along the container axis O direction), and the container body 2 side is the lower side (container axis The inside of the container main body 2 along the O direction). A direction perpendicular to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

  The container body 2 has a bottomed cylindrical shape, and the mouth portion 2a of the container body 2 has a smaller diameter than a portion other than the mouth portion 2a in the container body 2. Moreover, the outer diameter of the upper end part in the mouth part 2a is made one step smaller than parts other than the upper end part. A male screw portion 2b is formed at an intermediate portion between the upper end portion and the lower end portion of the outer peripheral surface of the mouth portion 2a. An annular flange 2c that protrudes radially outward and extends along the circumferential direction is formed at the lower end of the mouth 2a.

  The mounting cylinder 3 has a top tube-shaped base cylinder 7 which is extrapolated to the mouth portion 2a of the container body 2, and a diameter smaller than that of the base tube 7, and is suspended from the top wall 7a of the base tube 7 and the mouth portion 2a. A seal cylinder 8 fitted from the inside in the radial direction to the upper side of the base cylinder 7 and projecting upward from the top wall 7a of the base cylinder 7; It has.

  The base cylinder 7 includes an annular plate-shaped top wall 7a and a cylindrical peripheral wall 7b suspended from the outer peripheral edge of the top wall 7a. The top wall 7a is in contact with the upper end opening edge of the mouth portion 2a from above. On the inner peripheral surface of the peripheral wall 7b, a female screw portion 7c that is screwed into the male screw portion 2b of the mouth portion 2a is formed. The lower end portion of the peripheral wall 7b is fitted or extrapolated from the radially outer side to the flange 2c of the mouth portion 2a. A lower end opening edge of the peripheral wall 7b is in contact with or close to the shoulder 2d of the container body 2 from above.

  In the illustrated example, the outer diameter of the lower end portion of the seal cylinder 8 is made one step smaller than the portion other than the lower end portion.

  The extraction cylinder part 4 includes an outer cylinder 9 that rises from the inner peripheral edge of the top wall 7a of the base cylinder 7, and is separated from the outer cylinder 9 to the outer cylinder 9 and the seal cylinder 8 from the inside in the radial direction. And an inner cylinder 10 having an upper end opening formed as a spout 5.

  In the example shown in FIG. 1, the inner diameter of the outer cylinder 9 is smaller than the inner diameter of the seal cylinder 8. The lid body 6 is connected to the upper end portion of the outer cylinder 9 via a breakable weakening section 11, and the lid body 6 and the weakening section 11 are formed integrally with the outer cylinder 9.

  The lid 6 has a disk plate shape, and closes the spout 5 together with the thin annular weakened portion 11 by covering the spout 5 of the spout cylinder 4 from above. An operation piece 6 a for operating when removing the lid body 6 from the outer cylinder 9 is projected from a part of the outer peripheral edge portion of the lid body 6.

  The inner cylinder 10 is located above the top wall 7a of the base cylinder 7 and is fitted into the outer cylinder 9, and the upper cylinder part 10a is located below the top wall 7a of the base cylinder 7 and is located below. The lower cylinder part 10b fitted into the seal cylinder 8 is connected to the lower end part of the upper cylinder part 10a and the upper end part of the lower cylinder part 10b, and the lower end of the upper cylinder part 10a. And a tapered tube portion 10c that gradually increases in diameter from the portion toward the lower side.

The inner diameter (that is, the inner diameter of the spout 5) of the upper cylindrical portion 10a excluding the content guide portion 12 described later is, for example, φ7 to 12 mm. Further, the upper end opening edge of the upper cylinder portion 10 a is disposed close to the lower surface of the lid body 6.
An annular flange portion 10d that protrudes radially outward and extends in the circumferential direction is formed at the lower end portion of the lower cylinder portion 10b, and the flange portion 10d is formed at the lower end opening edge of the seal cylinder 8. It contacts from below.

A spiral content guide portion 12 extending in the direction of the container axis O while rotating around the container axis O is formed below the spout 5 in the inner cylinder 10.
In the present embodiment, the content guide portion 12 protrudes toward the inner side in the radial direction of the inner cylinder 10 and extends in the container axis O direction while circling on the inner peripheral surface of the inner cylinder 10. I am doing.

  The upper end portion 12 a of the content guide portion 12 is located at the upper end opening in the upper cylinder portion 10 a of the inner cylinder 10, that is, the spout 5, and the lower end portion 12 b of the content guide portion 12 is It is located in the lower cylinder part 10b.

  Further, the radial position of the inner peripheral edge portion of the content guide portion 12 is constant from the upper end portion 12a to the lower end portion 12b, and the inner peripheral edge portion does not reach the container axis O. Specifically, the protruding amount by which the content guide part 12 protrudes radially inward from the inner peripheral surface of the upper cylinder part 10a of the inner cylinder 10 is, for example, 1.5 to 3 mm. .

  As shown in FIGS. 1 and 2, a plurality of content guide portions 12 are provided in the extraction tube portion 4 of the mounting tube 3. In the illustrated example, the content guide part 12 is provided in the inner cylinder 10 in two symmetric rotations with respect to the container axis O by 180 °, and the winding angle at which each content guide part 12 circulates around the container axis O is shown. Are each 180 °. Here, the winding angle is formed between the peripheral end of the upper end portion 12a of the content guide portion 12, the container shaft O, and the peripheral end of the lower end portion 12b in a plan view of the inner cylinder 10 shown in FIG. Is the angle to be.

  In addition, although the number of strips and the winding angle of the content guide part 12 are not limited to what was demonstrated by this embodiment, it is preferable that it is 1 to 3 strips about a strip number, and 90 degrees-360 degrees about a winding angle.

Next, a procedure for refilling the contents from the refill container 1 into the main container 30 will be described with reference to FIGS. 3 and 4.
As shown in FIG. 3, first, the operation piece 6 a is gripped and operated so as to separate the lid body 6 from the outer cylinder 9 to break the weakened portion 11 and remove the lid body 6 from the outer cylinder 9. .

  When the lid 6 is removed and the spout 5 of the spout cylinder 4 is exposed, the spout cylinder 4 of the refill container 1 is inserted into the inlet 31 of the main container 30 as shown in FIG. At the same time, the refill container 1 and the main container 30 are combined to make the refill container 1 into a refill posture. In this refilling posture, the top wall 7 a of the base cylinder 7 of the refill container 1 is in contact with the opening edge of the inlet 31 of the main container 30, and the spout 5 of the pour cylinder 4 of the refill container 1. Is arranged in the inlet 31 of the container 30.

As shown in FIG. 4, the refill container 1 is in an inverted posture with the mouth portion 2 a of the container body 2 facing downward, so that the contents of the container body 2 can be extracted from the dispensing cylinder portion of the mounting cylinder 3. 4 flows out from the spout 5 into the inlet 31 of the main container 30 and is refilled into the main container 30.
4 indicates a discharge cap that is detachably attached to the inlet 31 of the container 30. During the refilling operation described above, the discharge cap 32 is provided around the hinge 33. It is rotated and removed from the inlet 31.

  According to the refill container 1 of the present embodiment described above, since the spiral content guide part 12 is formed in the mounting cylinder 3, the content flowing inside the mounting cylinder 3 is transferred to the content guide part. 12, it is circulated around the container axis O while being guided by 12, and flows out from the spout 5 into the inlet 31 of the container 30 in a spiral shape. The content that has flowed out in this way flows along the peripheral wall of the inlet 31 by the action of centrifugal force, as indicated by the two-dot chain arrow in FIG. Is formed with an air flow path A through which the air in the container 30 can be sent to the refill container 1.

That is, when the contents are refilled, the contents of the refill container 1 flow in the vicinity of the peripheral wall in the inlet 31 of the main container 30 toward the main container 30, and the air in the main container 30 flows into the inlet. It will go into the refill container 1 through the air flow path A in the radial center in the portion 31.
As a result, the contents and air are prevented from interfering with each other in the inlet 31 of the container 30, and the replacement efficiency (that is, the refill efficiency) between the contents and the air is improved. Can be performed in a short time.

  Moreover, when the number of strips of the content guide portion 12 is 1 to 3 and the winding angle is 90 ° to 360 °, the content flowing in the mounting cylinder 3 is surely swirled in a spiral shape as described above. In addition, the refilling time can be shortened.

That is, when the content guide portion 12 is one or more and the winding angle is 90 ° or more, the content flowing along the content guide portion 12 is surely spiraled, and the inlet of the container 30 It flows out in the part 31, and the effect mentioned above is acquired notably.
On the other hand, when the winding angle of the content guide portion 12 is less than 90 °, the content does not circulate sufficiently in the mounting cylinder 3 and flows into the inlet portion 31 of the main container 30, and the air flow path A may be difficult to form.

In addition, since the content guide portion 12 is 3 or less and the winding angle is 360 ° or less, the cross-sectional area of the flow path of the content flowing along the content guide portion 12 is secured, and the content Can suppress the resistance received from the content guide unit 12, thereby ensuring the flow rate and flow rate of the content in the mounting cylinder 3, and refilling can be performed in a short time.
On the other hand, when the content guide part 12 is four or more and the winding angle exceeds 360 °, the cross-sectional area of the flow path of the content flowing in the mounting cylinder 3 becomes small, and the content is the content guide part. 12 may easily receive a large resistance, and the contents may not easily flow through the mounting cylinder 3.

  Moreover, in this embodiment, when the contents of the refill container 1 are refilled into the main container 30, the spout 5 is opened by breaking the weakened portion 11 and removing the lid 6 from the pour cylinder 4. It has become. That is, before the refilling operation is performed, the spout 5 is closed by the lid 6, so that the contents of the refill container 1 can be prevented from being deteriorated and altered, and mixed with other substances.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the upper end portion 12 a of the content guide portion 12 is located at the upper end opening in the dispensing cylinder portion 4, that is, the spout 5, but the upper end portion 12 a of the content guide portion 12. May be disposed at a position spaced downward from the spout 5 in the mounting cylinder 3. Specifically, in the reference example of the present invention, in FIG. 1, the content guide part 12 may be formed only in the lower cylinder part 10 b and the tapered cylinder part 10 c in the inner cylinder 10, for example.

On the contrary, in the present invention, the content guide part 12 may be formed only in the upper cylinder part 10 a in the inner cylinder 10. However, it is preferable that the content guide portion 12 is arranged on the container body 2 side in the mounting cylinder 3 so that the content can easily flow out as the aforementioned vortex at the time of refilling.

Here, what is shown in FIGS. 5 to 10 is a modification of the refill container 1 described in the above-described embodiment. In addition, the same code | symbol is attached | subjected to the same member as above-mentioned embodiment, and the description is abbreviate | omitted.
In the modified example shown in FIGS. 5 to 8, the inner cylinder 10 is not provided in the extraction cylinder portion 4, and the outlet 5 is formed in the upper end opening in the outer cylinder 9. Further, the content guide portion 12 is formed on the inner peripheral surface of the outer cylinder 9. Moreover, the cover body 6 and the weakening part 11 are not formed in the upper end part of the outer cylinder 9 of the extraction | pouring cylinder part 4, and the top cap-shaped overcap 13 is attached or detached to this extraction | pouring cylinder part 4. It is attached so that the spout 5 can be opened.

Specifically, in FIG. 5, a male screw portion 9 a is formed at the upper end portion of the outer peripheral surface of the outer cylinder 9.
The top wall 13a of the overcap 13 is formed with an annular seal projection 13c that protrudes downward and extends in the circumferential direction. The seal projection 13c is formed at the upper end opening edge of the outer cylinder 9. It contacts from above. Further, an internal thread portion 13 d that is screwed into the external thread portion 9 a of the outer cylinder 9 is formed on the inner peripheral surface of the peripheral wall 13 b of the overcap 13.

  Further, an annular protrusion 8 a that protrudes radially inward and extends along the circumferential direction is formed on the inner peripheral surface of the seal cylinder 8. The lower end opening edge of the seal tube 8 is inclined with respect to a surface perpendicular to the container axis O (for example, a virtual surface including the lower end opening edge of the base tube 7).

In the seal cylinder 8 and the outer cylinder 9 of the mounting cylinder 3, there is provided a plug 14 that blocks communication between the spout 5 and the container body 2 and is movable in the container axis O direction.
The plug body 14 is in contact with the seal cylinder 8 from the inside in the radial direction and is slidable in the container axis O direction, and the top cylinder-shaped pushed-in member having a smaller diameter than the sliding cylinder part 14a. 14b, and a flange portion 14c that connects the central portion in the container axis O direction on the inner peripheral surface of the sliding cylinder portion 14a and the lower end opening of the pushed-in portion 14b.

An annular groove 14d that is recessed inward in the radial direction and extends along the circumferential direction is formed in the central portion of the outer peripheral surface of the sliding cylinder portion 14a in the container axis O direction, and the seal cylinder 8 is formed in the annular groove 14d. The annular projection 8a is engaged.
The pushed-in portion 14b includes a small-diameter upper portion 14e and a large-diameter lower portion 14f. In FIG. 5, the upper portion 14 e is disposed in the outer cylinder 9, and the upper end portion of the upper portion 14 e is located on the radially inner side of the upper end portion 12 a in the content guide portion 12. Further, the upper end portion of the lower portion 14f is disposed in the outer cylinder 9, and is located on the radially inner side of the lower end portion 12b of the content guide portion 12, and other than the upper end portion of the lower portion 14f. This part is arranged in the seal cylinder 8.

  As shown in FIG. 7, when the refill container 1 is attached to the main container 30 in the refilling posture at the inlet 31 of the main container 30, the pushed-in portion 14 b of the plug 14 is placed on the container main body 2 side. A push-in portion 34 that pushes in the direction toward is provided. In the illustrated example, the push-in portion 34 has an axial shape that extends on the container axis C of the main container 30 and has a + (plus) cross section. A plurality of through holes 35 penetrating in the container axis C direction are formed around the pushing portion 34.

In order to refill the contents from the refill container 1 described in this modification into the main container 30, first, the overcap 13 shown in FIG. 5 is removed from the outer cylinder 9 of the dispensing cylinder portion 4.
When the overcap 13 is removed and the spout 5 of the spout cylinder 4 is exposed, as shown in FIG. 8, the upright posture (the inlet 31 of the container 30 faces upward) is taken. While inserting the extraction | pouring cylinder part 4 of the refilling container 1 made into the inverted posture into the injection port part 31 of this container 30, combining the refilling container 1 and this container 30, the said refilling container 1 is set to the refilling attitude | position. To do.

  When the refill container 1 is attached to the main container 30 and is in the refill position, the plug 14 is pushed in by the push-in part 34 provided in the inlet 31 of the main container 30, so that the spout 5 and the container Release the disconnection of communication with the main body 2.

  Specifically, in FIG. 8, when the dispensing cylinder portion 4 of the refill container 1 is inserted into the injection port portion 31 of the main container 30, the push-in portion 34 of the injection port portion 31 is covered with the plug 14. By abutting against the top wall of the upper portion 14e of the push-in portion 14b, and by further inserting the extraction tube portion 4 into the injection port portion 31, the annular groove 14d of the plug body 14 and the annular protrusion 8a of the seal tube 8 are provided. The sliding cylinder part 14a moves in the seal cylinder 8 downward (on the container main body 2 side along the container axis O direction, the upper side in FIG. 8) while the engagement with the seal cylinder 8 is released. Departing from the inside, the spout 5 is communicated with the inside of the container body 2.

Due to the approaching movement of the refill container 1 and the main container 30 along the container axis O (C) direction, the injection of the main container 30 to the top wall 7a of the base cylinder 7 of the mounting cylinder 3 is performed as shown in FIG. The opening edge of the inlet portion 31 comes into contact, and the refill container 1 is in the refill posture.
This refilling posture may be a state in which the top wall 7a of the base tube 7 and the opening edge of the inlet 31 are close to each other without being in contact with each other. Also in this case, the spout 5 of the refill container 1 is disposed in the inlet 31 of the main container 30.

  When the spout 5 of the refill container 1 communicates with the inside of the container main body 2, the contents of the container main body 2 pass through the inside of the seal cylinder 8 and the outer cylinder 9 of the mounting cylinder 3 from the spout 5 to the main container 30. It flows out into the inlet 31 and is refilled into the container 30.

  According to the modification described with reference to FIG. 5 to FIG. 8, the contents vortexed out from the spout 5 of the refill container 1 into the inlet 31 of the main container 30 are injected into the inlet 31 by the action of centrifugal force. (Refer to the two-dot chain line arrow shown in FIG. 8), and the air in the container 30 is refilled around the push-in portion 34 located at the radial center of the inlet portion 31. An air flow path A that can be delivered to the container 1 is formed. Therefore, this modification also has the same effect as the above-described embodiment.

  Further, according to this modification, the communication between the spout 5 and the inside of the container body 2 is blocked by the stopper 14 before the refill container 1 is mounted on the main container 30, so that the refill container 1 is inverted. Even in the posture, leakage of contents is prevented. Then, when the refill container 1 is attached to the main container 30 to be in the refill position, the plug 14 is pushed in and the communication between the spout 5 and the container body 2 is released, so as described above. While the replacement efficiency is improved, the contents can be prevented from spilling during the refilling operation.

  In this modification, the push-in portion 34 is provided in the inlet 31 of the main container 30, but the present invention is not limited to this, and the push-in portion 34 is provided in the refill container 1. It doesn't matter. In this case, the push-in portion 34 is disposed in, for example, the mounting cylinder 3 and moves in the container axis O direction with respect to the outer cylinder 9 when the refilling container 1 is mounted on the main container 30 and is in the refilling posture. Then, the stopper 14 is pushed in, and thereby the disconnection of the communication between the spout 5 and the inside of the container body 2 is released.

  Further, the overcap 13 described in this modification may not be provided.

  Moreover, in the modification shown by FIG.9 and FIG.10, the container axis | shaft is replaced with the lower side of the spout 5 in the outer cylinder 9 of the extraction | pouring cylinder part 4 instead of the spiral bowl-shaped content guide part 12 mentioned above. A spiral groove-shaped content guide portion 15 extending in the container axis O direction while rotating around O is formed. The content guide portion 15 is recessed from the inner peripheral surface of the outer cylinder 9 and extends toward the container axis O while circling along the inner peripheral surface of the outer cylinder 9.

  In this modification, the inner diameter of the portion excluding the content guide portion 15 of the outer cylinder 9 (that is, the inner diameter of the spout 5) is, for example, φ12 mm or more (preferably φ12 to 15 mm). Moreover, the depth of the radial direction of the content guide part 15 is 0.6 mm, for example.

  According to the modification described with reference to FIG. 9 and FIG. 10, since the spiral content guide portion 15 is formed in the mounting cylinder 3, the content flowing inside the mounting cylinder 3 is transferred to the content guide portion. 15, it is circulated around the container axis O while being guided by 15, and flows out in a spiral shape from the spout 5 into the inlet 31 of the main container 30. The content that has flowed out in this manner flows along the peripheral wall of the inlet 31 by the action of centrifugal force, while the air in the container 30 is refilled in the radial center of the inlet 31. An air flow path A that can be delivered to the air is formed. Therefore, also in this modification, the same effect as that of the above-described embodiment can be obtained.

  Here, in the present invention, in order to increase the replacement efficiency between the contents and the air and obtain an excellent refilling efficiency, when the inner diameter of the spout 5 described in the above embodiment is 7 mm to 12 mm, a spiral bowl shape It is preferable to use the content guide section 12 of the above. Moreover, when the inner diameter of the spout 5 described in the modification of FIGS. 9 and 10 is φ12 mm or more, it is preferable to use the spiral groove-shaped content guide portion 15.

  Further, instead of screwing the base cylinder 7 of the mounting cylinder 3 into the mouth 2a of the container body 2, other mounting methods such as undercut fitting (concave / convex fitting) may be employed.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Refill container 2 Container main body 2a Mouth part 3 Attached cylinder 4 Outlet cylinder part 5 Outlet 6 Lid 11 Weakened part 12, 15 Contents guide part 14 Plug body 30 This container 31 Inlet part 34 Push-in part O Container shaft

Claims (3)

A container body for storing the contents to be refilled in the container;
A refillable container provided with a mounting cylinder mounted on the mouth of the container body,
The mounting cylinder has an extraction cylinder part inserted into the injection port part of the container,
The pouring tube portion is formed with a pouring port which is communicated with the inside of the container main body and is disposed in the inlet portion of the main container when the refill container is attached to the main container and is in a refilling posture. And
Wherein the inside of the container body along the axial direction of the container of the spout within the pouring cylinder of the mounting tube, spiral contents guide portion extending in the container axis direction while revolving the container axis are formed A refill container characterized by Refillable container according to claim 1,
In the mounting cylinder, there is provided a stopper that blocks the communication between the spout and the container body and is movable in the container axial direction.
When the refill container is attached to the main container and is in a refill posture, the stopper is pushed in by an inlet portion of the main container or a push-in portion provided in the refill container, and the spout and the A refillable container characterized by releasing the disconnection of communication with the inside of the container body. Refillable container according to claim 1 or 2,
A refill container, wherein a lid that closes the spout is connected to the spout cylinder through a weakened portion that can be broken.

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