JP4805036B2 - Double container - Google Patents

Description

  The present invention relates to a double container.

As this type of double container, for example, as shown in Patent Document 1 below, an inner container filled with contents, an inner container including an extraction cylindrical portion connected to the inner container, and the inner container include There is known a configuration including an external container to be installed and a pouring part that is attached to an upper end opening of the pouring cylinder and has a pouring outlet for pouring the contents of the inner container. And when a consumer uses up the content, it replaces | exchanges for the new interior container with which the content was filled, and an exterior container and the extraction | pouring part are reused.
JP 2004-106940 A

  However, in the conventional double container, when replacing with a new interior container, first, the extraction part is attached to the upper end opening of the extraction cylindrical part, the interior container and the extraction part are assembled, and then the exterior Since the container was attached, there was a problem that it took time for the consumer to assemble the interior container filled with the contents and the extraction part. For example, this problem may be particularly apparent when the content of the contents is large or when the inner container is a flexible film container.

  The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a double container in which an interior container can be easily replaced.

In order to solve the above-described problems and achieve such an object, the double container of the present invention includes an inner container filled with the contents, and an inner container including an extraction cylindrical portion inserted into the inner container. And an outer container in which the inner container is installed, and a pouring part attached to an upper end opening of the pouring cylindrical part and having a pouring outlet for pouring the contents of the inner container. The outlet cylindrical portion includes a fixed cylindrical portion and a movable cylindrical portion that is fitted inside the fixed cylindrical portion so as to be rotatable around the central axis of the extraction cylindrical portion. A flange portion protrudes from the outer peripheral surface of the portion protruding outward, and the pouring portion is provided with a cover portion attached to the outer peripheral surface of the upper end portion of the outer container, and the pouring portion is connected to the pouring cylindrical portion. When attaching to the upper end opening, the inner peripheral surface of the movable cylindrical portion of the extraction cylindrical portion and the The cover portion is rotated around the central axis relative to the extraction cylindrical portion together with the engagement portion provided in the extraction portion in a state where the engagement portions provided in the extraction portion are engaged with each other. Thus, the movable cylinder part is rotated relative to the fixed cylinder part around the central axis so that the inside of the inner container communicates with the inside of the extraction cylindrical part. In addition, a positioning engagement portion that engages with each other on the flange portion of the extraction cylindrical portion and the upper end opening surface of the outer container to restrict the rotational movement of the fixed cylinder portion around the central axis relative to the outer container. A guide groove is formed on the outer peripheral surface of the upper end portion of the outer container, and a guide convex portion that engages with the guide groove is projected on the inner peripheral surface of the cover portion. , Open to the top opening surface of the outer container, A first groove extending in the direction of the central axis, a second groove formed below the first groove and extending in the circumferential direction, and a connection extending in a direction inclined to the central axis and connecting these grooves. characterized Rukoto a groove.
In the present invention, a positioning engagement portion that engages with each other on the flange portion of the extraction cylindrical portion and the upper end opening surface of the outer container to regulate the rotational movement of the fixed cylinder portion around the central axis relative to the outer container is provided. Therefore, when replacing the inner container with a new inner container, first attach the inner container to the outer container before attaching the outlet to the outer cylinder, and then in this state, the inner container and the inner cylinder It is possible to attach the pouring part to the upper end opening of the pouring cylindrical part while communicating with the inside of the part, and the labor required for this replacement can be reduced.
That is, in the process of attaching the pouring part to the pouring cylindrical part with the interior container mounted in the exterior container in this way, for example, when the cover part is rotated around the central axis, the central axis provided to the cover part Rotational torque is transmitted to the extraction cylindrical portion through the meshing portion. At this time, the fixed cylinder portion of the extraction cylindrical portion is engaged with the center of the exterior container by the engagement of the positioning engagement portion. Since the rotational movement around the axis is restricted, it is possible to rotate only the movable cylinder part without rotating this fixed cylinder part, and the inside of the inner container and the inside of the extraction cylinder part are communicated with each other. Can be made.

Here, a guide groove is formed on the outer peripheral surface of the upper end portion of the outer container, and a guide convex portion that engages with the guide groove is protruded on the inner peripheral surface of the cover portion. A first groove that opens in the upper end opening surface of the outer container and extends in the direction of the central axis, a second groove that is formed below the first groove and extends in the circumferential direction, and extends in a direction inclined to the central axis And connecting grooves for connecting these two grooves, so that the inner container is mounted in the outer container as described above, the pouring portion is attached to the pouring cylindrical portion from above in the central axial direction. In this case, first, the guide convex portion engages with the first groove, so that the position of the pouring portion with respect to the outer container around the central axis is determined, and the meshing portion provided in the pouring portion with respect to the outer container is determined. A position around the central axis is determined.
Here, in a state where the interior container is housed in the exterior container, the positioning engagement portions engage with each other, whereby the position around the central axis of the interior container relative to the exterior container is determined and provided in the movable cylinder portion. A position of the meshing portion around the central axis with respect to the outer container is determined.
From the above, when the guide convex portion is moved along the first groove toward the lower side of the central axis, the both meshing portions can be meshed with each other. Therefore, when reassembling the pouring part, the interior container, and the exterior container in order to replace the interior container, it is possible to reduce the trouble of finely adjusting the circumferential positions around the central axis. Thus, it is possible to further reduce the labor required to replace the interior container with a new one.

  The positioning engagement portions may be provided at positions facing each other across the central axis in the radial direction, and the circumferences thereof may be different from each other.

  According to the double container according to the present invention, the interior container can be easily replaced.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 and FIG. 2, the double container 10 according to this embodiment includes an inner container 11 filled with contents, and an interior container including a dispensing cylindrical portion 13 inserted into the inner container 11. 14, an outer container 15 in which the inner container 14 is installed, a pouring part 16 that is attached to the upper end opening of the pouring cylindrical part 13 and has a spout 16a for pouring the contents of the inner container 11, It has.

  In the example shown in the figure, the extraction portion 16 is a pump with a stem standing so as to be able to be pushed in an upward biased state, and by pushing down the pressing head 16b, the outlet 16a is opened to pass through the cylinder 16c. The contents are poured out from the spout 16a. Further, the pouring portion 16 is provided with a cup-shaped cover portion 20 that opens downward, and the inner peripheral surface of the cover portion 20 is fitted to the outer peripheral surface of the upper end portion of the outer container 15. Yes.

  The cylinder 16c is positioned inside the cover portion 20. The cover portion 20 is provided with a meshing cylinder portion 20a extending in the central axis direction along the outer peripheral surface of the cylinder 16c, and the meshing cylinder portion 20a. A plurality of first meshing portions 20b are formed on the outer peripheral surface of the first circumferential portion with a predetermined interval in the circumferential direction. Further, in the present embodiment, guide convex portions 20c are provided on the inner peripheral surface of the lower end portion of the cover portion 20 at positions facing each other across the central axis in the radial direction. Moreover, the cover part 20 and the meshing cylinder part 20a are integrally formed.

  In the present embodiment, the inner tube 14 is provided with a joining cylinder portion 12 having an inner diameter larger than the outer diameter of the extraction cylindrical portion 13 on the same axis as the central axis O of the extraction cylindrical portion 13. The inner peripheral surface of the opening 11 a is bonded to the outer peripheral surface of the bonding cylinder portion 12. Further, the inner container 11 is formed by cutting an aluminum film, a single-layer film made of a synthetic resin film, or a laminated film having at least one of these films, and has an upper end opening 11a. They are formed by rounding to form an inner peripheral surface along the outer peripheral surface of the joining cylinder portion 12 and joining the side end portions 11b to each other and the bottom portion forming portion 11c.

  The extraction cylindrical portion 13 includes a fixed cylinder portion 18 and a movable cylinder portion 19 that is fitted inside the fixed cylinder portion 18 so as to be rotatable around the central axis O of the extraction cylinder portion 13. A flange portion 17 protrudes from an outer peripheral surface of a portion of the portion 18 that protrudes outward from the inner container 11. Here, the extraction cylindrical portion 13 is provided so as to protrude from the upper and lower surfaces of the flange portion 17, and the joining cylinder portion 12 is suspended from the lower surface of the flange portion 17.

  The outer peripheral edge shape of the flange portion 17 in plan view is a circle. Moreover, the flange part 17, the fixed cylinder part 18, and the joining cylinder part 12 are integrally formed. Furthermore, the movable cylinder portion 19 is undercut fitted to the inner peripheral surface of the fixed cylinder portion 18 so as to be rotatable around the central axis O. Moreover, the movable cylinder part 19 is a bottomed cylindrical body, and a drooping cylinder 19b protruding downward from the lower end opening of the fixed cylinder part 18 is provided on the outer surface of the bottom part 19a. The hanging cylinder 19b is provided on the outer surface of the bottom portion 19a so that a plurality of flat plate portions intersect each other and form a cross in a bottom view of the movable cylinder portion 19. In the process of pouring the contents in the inner container 11 by the drooping cylinder 19b, the opposing surfaces of the inner container 11 that sandwich the central axis O in the radial direction are in close contact with each other and remain in the inner container 11. This prevents the contents that are present from being discharged.

Further, on the outer peripheral surface of the lower end portion of the movable tube portion 19, through holes 19c communicating with the inside of the movable tube portion 19 are formed at positions facing each other across the central axis O in the radial direction. On the other hand, on the inner peripheral surface of the lower end portion of the fixed cylinder portion 18, the communication groove 18 a that opens in the lower end surface of the fixed cylinder portion 18 and extends in the direction of the central axis O is provided at positions facing each other across the central axis O in the radial direction. Is formed.
A second meshing portion 19 d that meshes with the first meshing portion 20 b of the meshing cylinder portion 20 a provided on the cover portion 20 is formed on the inner peripheral surface of the upper end portion of the movable cylinder portion 19.

  The outer casing 15 is a bottomed cylindrical body, and guide convex portions projecting from the inner peripheral surface of the lower end portion of the cover portion 20 at positions opposed to each other across the central axis O in the radial direction on the outer peripheral surface of the upper end portion. A guide groove 21 to be engaged with 20c is formed. In the present embodiment, as shown in FIG. 4, the guide groove 21 opens to the upper end opening surface 15 b of the outer container 15 and extends in the direction of the central axis O, and the first groove 21 a A second groove 21b that is formed below and extends in the circumferential direction is provided, and a connecting groove 21c that extends in a direction inclined to the central axis O and connects these grooves 21a and 21b. In the illustrated example, the guide groove 21 extends from the upper end opening surface 15b of the outer container 15 downward along the outer peripheral surface thereof in a clockwise direction when the container 15 is viewed from above. The connecting groove 21c connects the lower end of the first groove 21a and the rear end of the second groove 21b in the clockwise direction. The forward end of the second groove 21 in the clockwise direction has a groove width that is gradually narrowed toward the front end, or a convex portion (not shown) is formed on the front end. The cover 20 can be prevented from being detached from the outer container 15 by the protrusion 20c being in close contact with the front end of the second groove 21 or engaging with the protrusion.

In the present embodiment, the flange portion 17 of the extraction cylindrical portion 13 and the upper end opening surface 15b of the outer container 15 are engaged with each other to rotate around the central axis O of the fixed cylinder portion 18 with respect to the outer container 15. A positioning engagement portion for restricting the movement is provided.
In the present embodiment, the positioning engagement portion of the flange portion 17 is a positioning engagement convex portion 17 a projecting radially outward from the outer peripheral edge of the flange portion 17 that is circular in plan view, and the upper end opening of the outer container 15. The positioning engagement portion provided on the surface 15b is a positioning engagement recess 15c that is recessed downward in the direction of the central axis O.

  Here, the outer diameter of the flange portion 17 is equal to or slightly smaller than the inner diameter of the upper end portion of the outer container 15, and the positioning engagement convex portion 17 a protrudes from the outer peripheral edge of the flange portion 17. The amount is equivalent to the thickness in the radial direction of the upper end opening surface 15b of the outer container 15, and the positioning engagement recess 15c is formed in the entire thickness direction of the upper end opening surface 15b. Further, the positioning engagement protrusions 17 a are provided at positions facing each other across the central axis O in the radial direction in the flange portion 17, and the positioning engagement recesses 15 c are formed at the center of the upper end opening surface 15 b of the outer container 15. They are provided at positions facing each other across the axis O in the radial direction. Further, the circumferential lengths of the positioning engagement convex portions 17a provided at the positions facing each other are different from each other, and the circumferential length of the positioning engagement concave portion 15c is also different according to the circumferential length of the positioning engagement convex portion 17a. ing. In addition, in the upper end opening surface 15b of the exterior container 15, the positioning engagement recess 15c is approximately about the central axis O with respect to the position where the first groove 21a of the guide groove 21 is formed, as shown in FIG. It is formed at a position shifted by 90 °.

Next, a method of removing the used interior container 14 in the above double container 10 will be described.
First, in the double container 10 shown in FIG. 2, the guide convex portion 20 c moves along the second groove 21 b and the connecting groove 21 c in this order among the guide grooves 21 formed on the outer peripheral surface of the upper end portion of the outer container 15. Thus, the cover part 20 is rotated around the central axis O, and the extraction part 16 is removed together with the cover part 20.

  Thus, in the process of rotating the cover part 20, the first and second meshing parts 20 b and 19 d are meshed with each other, so that the rotational torque applied to the cover part 20 is transmitted to the movable cylinder part 19. At this time, the positioning engagement convex portion 17a provided on the flange portion 17 of the inner container 14 and the positioning engagement concave portion 15c formed on the upper end opening surface 15b of the outer container 15 are engaged with each other. The rotational movement around the central axis O of the fixed cylindrical portion 18 by the rotational torque transmitted to the portion 19 is restricted.

As described above, only the movable cylindrical portion 19 is rotated around the central axis O in the interior container 14 by the rotational torque, and the communication groove 18 a formed on the inner peripheral surface of the fixed cylindrical portion 18 and the movable cylindrical portion 19 penetrate. Communication with the hole 19c is blocked.
Thereafter, the cover portion 20 is pulled upward in the direction of the central axis O so that the guide convex portion 20c moves along the first groove 21a of the guide groove 21, and the guide convex portion 20c reaches the upper end of the first groove 21a. Then, the cover part 20 is removed from the outer container 15 together with the extraction part 16.
Thereafter, the interior container 14 is lifted upward to release the engagement between the positioning engagement convex portion 17a and the positioning engagement concave portion 15c and take out from the exterior container 15.
As described above, the double container 10 is disassembled into the extraction part 16, the interior container 14, and the exterior container 15.

Next, a method of assembling a new interior container 14 filled with contents in the inner container 11 from the state of being disassembled in this way will be described.
First, the inner container 11 is inserted into the outer container 15 in a state where the positioning engagement convex part 17 a of the inner container 14 is engaged with the positioning engagement concave part 15 c formed on the upper end opening surface 15 b of the outer container 15. . Thereby, the position around the central axis O of the inner container 14 relative to the outer container 15 is determined, and the position around the central axis O relative to the outer container 15 of the second meshing portion 19d formed in the inner container 14 is determined. At the same time, the rotational movement of the fixed cylinder portion 18 around the central axis O with respect to the outer container 15 is restricted.

Next, in the state in which the inner container 14 is housed in the outer container 15 as described above, the guide convex portion 20c of the cover portion 20 provided in the extraction portion 16 is formed on the outer peripheral surface of the upper end portion of the outer container 15. The groove 21 is engaged with the first groove 21a opened on the upper end opening surface 15b from above in the direction of the central axis O. Thereby, each position of the meshing cylinder part 20a and the cover part 20 around the central axis O with respect to the outer container 15 is determined, and the first meshing part 20b formed in the meshing cylinder part 20a around the central axis O is determined. The position is determined.
Thereafter, the cover portion 20 is pushed downward, and the guide convex portion 20c is further moved downward along the first groove 21a, whereby the first meshing portion 20b and the second meshing portion 19d formed in the interior container 14 are moved. And mesh with each other.

  Further, the cover part 20 is rotated around the central axis O so that the guide convex part 20c moves along the connecting groove 21c and the second groove 21b in this order. The outer peripheral surface of the upper end portion of the outer container 15 is screwed to fit the outer peripheral surface of the outer container 15 into the inner peripheral surface of the cover portion 20, and the cylinder 16 c of the extraction portion 16 is inserted into the movable cylinder portion 19.

  In the process of fitting the cover portion 20 to the outer peripheral surface of the upper end portion of the outer container 15 as described above, the central axis O applied to the cover portion 20 due to the engagement of the first and second engagement portions 20b and 19d. Rotational torque is transmitted to the movable cylinder portion 19. At this time, the positioning engagement convex portion 17a provided on the flange portion 17 of the inner container 14 and the positioning engagement concave portion 15c formed on the upper end opening surface 15b of the outer container 15 are engaged with each other. The rotational movement around the central axis O of the fixed cylindrical portion 18 by the rotational torque transmitted to the portion 19 is restricted. As a result, the movable tube portion 19 is rotated around the central axis O with respect to the fixed tube portion 18, and the through hole 19 c of the movable tube portion 19 and the communication groove 18 a of the fixed tube portion 18 are communicated with each other. 11 is attached to the extraction cylindrical portion 13 of the inner container 14 in a state where the inside of the extraction cylindrical portion 13 communicates with the inside of the extraction cylindrical portion 13.

  As described above, according to the double container 10 according to the present embodiment, the positioning engagement convex portion 17a is provided on the flange portion 17 of the extraction cylindrical portion 13, and the positioning member is provided on the upper end opening surface 15b of the outer container 15. Since the joint recess 15c is formed, before replacing the pouring part 16 with the pouring cylindrical part 13 when replacing with a new interior container 14, the interior container 14 is first installed in the exterior container 15, and then this In this state, it is possible to attach the pouring portion 16 to the upper end opening of the pouring cylindrical portion 13 while communicating the inside of the inner container 11 and the inside of the pouring cylindrical portion 13, thereby reducing the labor required for this replacement. Can be made.

  That is, in the process of attaching the extraction portion 16 to the extraction cylindrical portion 13 with the interior container 14 mounted in the exterior container 15 in this way, the rotational torque around the central axis O applied to the cover portion 20 is the first torque. 1 and the fixed cylinder part 18 of the extraction cylindrical part 13 when it is transmitted to the extraction cylindrical part 13 through the second engagement parts 20b and 19d, the positioning engagement convex part 17a and the positioning engagement concave part 15c Since the rotational movement around the central axis O with respect to the outer container 15 is restricted by the engagement of the outer cylinder 15, it is possible to rotate only the movable cylinder part 19 without rotating the fixed cylinder part 18. The inside of the container 11 and the inside of the extraction cylindrical part 13 can be communicated.

In the present embodiment, the guide groove 21 is formed on the outer peripheral surface of the upper end portion of the outer container 15, and the guide convex portion 20 c is projected on the inner peripheral surface of the cover part 20. It is possible to further reduce the time and labor required for replacement.
That is, first, the guide convex portion 20c is engaged with the first groove 21a, whereby the position of the cover portion 20 around the central axis O with respect to the outer container 15 is determined, and the first meshing portion 20b with respect to the outer container 15 is determined. A position around the central axis O is determined.
Here, in a state in which the interior container 14 is housed in the exterior container 15, the positioning engagement convex portion 17 a provided on the flange portion 17 of the extraction cylindrical portion 13 and the positioning formed on the upper end opening surface 15 b of the exterior container 15. By engaging with the engaging recess 15c, the position around the central axis O of the inner container 14 relative to the outer container 15 is determined, and the position around the central axis O of the second meshing part 19d relative to the outer container 15 is determined. It is determined.

  As described above, when the guide convex portion 20c is moved along the first groove 21a toward the lower side of the central axis O, the first and second engaging portions 20b and 19d can be engaged with each other. Therefore, when reassembling the pouring part 16, the inner container 14 and the outer container 15 in order to replace the inner container 14 in the consumer, the circumferential positions around the central axis O of these 14 to 16 are finely adjusted to each other. Can be reduced.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
In the said embodiment, although the joining cylinder part 12 was provided separately from the extraction cylindrical part 13, it replaces with this, for example in the part located in the downward direction of the flange part 17 in the outer peripheral surface of the extraction cylindrical part 13 The inner peripheral surface of the upper end opening 11a of the vessel 11 may be joined.
Further, the upper end opening portion 11a of the inner container 11 and the joining cylinder portion 12 of the extraction cylindrical portion 13 may be welded or fused, for example, by applying heat, ultrasonic waves, or the like. Instead, an adhesive may be interposed between these 11a and 12 to bond them.

Furthermore, in the said embodiment, although the structure formed by rounding what cut | disconnected the said film as the inner container 11 and joining the edge parts 11b was shown, it replaced with this, for example, extrusion molding etc. May be formed.
Moreover, in the said embodiment, although the pump which stood up the stem so that it could push in as an upward biased state was shown as the extraction | pouring part 16, it replaced with this, for example, application parts, such as a hinge cap, a screw cap, or a comb, for example Etc. may be adopted.
Furthermore, in the embodiment, the guide groove 21 is formed on the outer peripheral surface of the upper end portion of the outer container 15 and the guide convex portion 20c is provided on the cover portion 20 of the extraction portion 16. On the inner peripheral surface of the lower end portion of the cover portion 20 of the projecting portion 16, the guide convex portion is formed on the outer peripheral surface of the upper end portion of the outer container 15 by opening at the lower end in the direction of the central axis O and extending obliquely upward. You may make it provide.

  In the above embodiment, the positioning engagement convex portion 17a is provided on the flange portion 17 and the positioning engagement concave portion 15c is formed on the upper end opening surface 15b of the outer container 15. However, instead of this, for example, the positioning engagement convex portion May be formed on the upper end opening surface 15b of the outer container 15 so as to project upward in the direction of the central axis O, and the positioning engagement recess may be formed in the flange portion 17 by being recessed radially inward from the outer peripheral edge thereof. Good. In this case, the outer diameter of the flange portion 17 is made equal to the outer diameter of the upper end opening surface 15b of the outer container 15.

Further, the circumferential lengths of the positioning engagement protrusions 17a and the positioning engagement recesses 15c formed at positions facing each other across the central axis O in the radial direction may be equal to each other, or these engagement protrusions One portion 17a and one engagement recess 15c may be formed, or three or more of each may be formed.
Moreover, in the said embodiment, when replacing | exchanging the interior container 14, although the cover part 20 was rotated to the surroundings of the said center axis line O, instead of this, the exterior container 15 may be rotated, and also both 20 and 15 may be rotated around the central axis O in opposite directions.

  Furthermore, in the above embodiment, the positioning engaging recess 15c is formed over the entire thickness direction of the upper end opening surface 15b of the outer container 15, but instead, for example, the upper end opening surface 15b of the outer container 15 You may form limiting to an inner peripheral surface side.

  The interior container can be easily replaced.

It is the longitudinal cross-sectional view which decomposed | disassembled the double container shown as one Embodiment which concerns on this invention. It is a longitudinal cross-sectional view which shows the state which assembled the double container shown in FIG. (A) IIIa-IIIa arrow sectional drawing of the double container shown in FIG. 1, (b) IIIb-IIIb arrow sectional drawing of the double container shown in FIG. (A) The top view of the exterior container shown in FIG. 1 and FIG. 2, (b) The side view of the exterior container shown in FIG. 1 and FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Double container 11 Inner container 13 Extraction cylindrical part 14 Interior container 15 Exterior container 15b Upper end opening surface 15c of exterior container Positioning engagement recessed part (positioning engagement part)
16 Outlet 16a Outlet 17 Flange 17a Positioning engagement projection (positioning engagement)
18 Fixed cylinder part 19 Movable cylinder part 19d 2nd meshing part (meshing part)
20 Cover part 20b 1st meshing part (meshing part)
20c Guide convex portion 21 Guide groove 21a First groove 21b Second groove 21c Connection groove O Center axis

Claims (2)

An inner container provided with an inner container filled with contents, and an extraction cylindrical part inserted into the inner container;
An exterior container in which this interior container is installed;
A pouring part attached to the upper end opening of the pouring cylindrical part and having a pouring outlet for pouring the contents of the inner container; and
The pouring cylindrical portion includes a fixed tube portion, and a movable tube portion that is fitted inside the fixed tube portion so as to be rotatable about the central axis of the pouring cylinder portion, and the content of the fixed tube portion A flange portion protrudes from the outer peripheral surface of the portion protruding outward from the vessel, and the pouring portion is provided with a cover portion attached to the outer peripheral surface of the upper end portion of the outer container,
When attaching the extraction portion to the upper end opening of the extraction cylindrical portion, the inner peripheral surface of the movable cylinder portion of the extraction cylindrical portion and the engagement portions respectively provided on the extraction portion are engaged with each other. The movable cylinder part is rotated relative to the fixed cylinder part with respect to the central axis by rotating the cover part together with the meshing part provided in the extraction part relative to the extraction cylindrical part. A double container that is configured to communicate with the inside of the inner container and the inside of the extraction cylindrical part by relatively rotating around.
A positioning engagement portion that engages with each other and restricts the rotational movement of the fixed cylinder portion around the central axis relative to the exterior container is provided on the flange portion of the extraction cylindrical portion and the upper end opening surface of the exterior container. It is,
A guide groove is formed on the outer peripheral surface of the upper end portion of the outer container, and a guide convex portion that engages with the guide groove protrudes from the inner peripheral surface of the cover portion.
The guide groove opens on an upper end opening surface of the outer container and extends in the central axis direction, a second groove formed below the first groove and extending in the circumferential direction, and inclined to the central axis line double container which extend in a direction in which said Rukoto and a connecting groove for connecting these two grooves. The double container according to claim 1 ,
The double container according to claim 1, wherein the positioning engagement portions are provided at positions facing each other across the central axis in the radial direction, and the circumferences thereof are different from each other.

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