JP2022171391A - double container - Google Patents

Abstract

To provide a double container which can be separately disposed by dividing a container body for storing a refill container into two bodies, an inner container body and an outer container body, and detachably fit the two bodies together.SOLUTION: A double container comprises a cylindrical container body 1 with an upper opening, and a refill container 40 stored in the container body 1. The container body 1 is formed of an inner container body 20 having a vertically oriented storage cylinder 22 for storing a refill container 40 and having an insertion port O for the refill container 40 at an upper end of the storage cylinder 22, and a bottomed cylindrical outer container body 2 into which the inner container body 20 is inserted. A fitting part A formed at the bottom of the storage cylinder 22 is detachably fitted to a part B to be fitted formed on a bottom wall 4 side of the outer container body 2.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double container, and particularly to a double container capable of separating a container main body for storing a refill container into two.

A conventional double container consists of a jar-shaped refill container (inner container) and a cylindrical container body (outer container) having an insertion opening for the jar container on the upper surface, and the refill container is placed in the container body. An inset type is known (Patent Document 1).

JP 2018-34836

The container body of the double container of Patent Document 1 is molded as an integral member as a whole.
However, in recent years, there has been a demand to mold the cylindrical container body itself into two parts, an inner part and an outer part, which can be separated from each other.
For example, in a refillable jar-type container, when it is required to decorate the inner container body and to form the outer container body surrounding the inner container body with a transparent material in order to give a sense of luxury. There is
When the inner container body is made of different materials to ensure decorativeness and the outer container body is made of different materials to ensure transparency, both are combined in order to recycle the materials at the time of disposal. Separation is desirable.
In order to meet these demands, it is necessary to consider in advance how to assemble the inner container body to the outer container body. If it is fitted inside, it will be difficult to separate and dispose of it.

A first object of the present invention is to divide a container body for storing a refill container into two bodies, an inner container body and an outer container body, and to separate the two bodies by detachably fitting them together. To provide a double container that can be discarded.
A second object of the present invention is to design the fitting force between the inner housing body and the outer container body for ease of use (in particular, the inner housing body can be easily and unexpectedly removed from the outer housing body). to be able to avoid this).

The first means includes a cylindrical container body 1 with an upper opening,
and a refill container 40 housed in the container body 1,
The container main body 1 includes an inner container 20 having a vertically oriented container cylinder 22 for containing the refill container 40 and having an insertion opening O for the refill container 40 at the upper end of the container cylinder 22, and the inner container body 20. 20 is inserted into the bottomed cylindrical outer container body 2,
The inner housing body 20 and the outer container body 2 are formed as separable separate bodies,
A fitting portion A formed at the lower portion of the storage cylinder 22 is detachably fitted to a fitting portion B formed on the bottom wall 4 side of the outer container body 2 .

In this means, as shown in FIGS. 1, 4, and 6, the container body 1 for storing the refill container 40 has a vertical storage cylinder 22 for storing the refill container 40, and the storage cylinder 22 is An inner container body 20 having an insertion opening O for a refill container 40 at its upper end and a bottomed cylindrical outer container body 2 into which the inner container body 20 is inserted are formed so as to be separable from each other.
A fitting portion A formed at the lower portion of the housing cylinder 22 is detachably fitted to a fitting portion B formed on the bottom wall 4 side of the outer container body 2 .
According to this structure, the inner container body 20 and the outer container body 2 can be separated and discarded, which contributes to the reuse of resources.

The second means has the first means and is provided at the fitting portion A and the fitted portion B as a retaining mechanism T for restricting the inner container body 20 from being pulled out from the outer container body 2. , engaging means 10, 34 are formed to separably engage each other.

In this means, as shown in FIGS. 1(A), 4(A), and 6(A), the inner container body 20 from the outer container body 2 is attached to the fitting portion A and the fitted portion B. Engagement means 10 and 34 that separably engage each other are formed as a retaining mechanism T for restricting the withdrawal of the battery.
According to this structure, when using the double container of the present invention (for example, when pulling out the refill container 40 from the storage tube 22), the risk of the inner container body 20 unexpectedly coming off from the outer container body 2 can be eliminated. It can be reduced and is easy to use.

The third means has the first means or the second means, and the fitted portion B is formed as an inner peripheral surface 8i of the engaging cylinder 6 rising from the bottom wall 4,
The housing cylinder 22 is formed with a lower end opening, and by drilling a plurality of slits 30 extending upward from the lower end side of the housing cylinder 22, the cylinder wall portion between the slits 30 is flexible. forming a piece 32,
A fitting portion A formed by the lower end portions 33 of these flexible pieces 32 is provided so as to be separably fitted to the fitted portion B. As shown in FIG.

In this means, as shown in FIG. 1(A), the fitted portion B is formed as an inner peripheral surface 8i of an engaging cylinder 6 that rises from the bottom wall 4, and the housing cylinder 22 is formed at the lower end. formed in the opening.
Further, as shown by dotted lines in FIG. 1(B), by making a plurality of slits 30 extending upward from the lower end side of the storage cylinder 22, the cylinder wall portion between the slits 30 is flexible. Pieces 32 are formed, and a fitting portion A formed by the lower ends of these flexible pieces 32 is provided so as to be separably fitted to the fitted portion B. As shown in FIG.
According to this structure, the fitting force between the fitting portion A and the fitted portion B is reduced or eliminated by the inward bending of the flexible piece 32, so that the outer container body 2 and the inner container body 20 are separated from each other. is easy to remove.

The fourth means has the third means, and by fitting the refill container 40 to the inner surface of the storage cylinder 22, each flexible piece 32 can be refilled so as not to bend and deform inward. is in contact with the surface of the container 40,
In this contact state, the lower end portion 33 of the flexible piece 32 is pressed against the inner peripheral surface 8i of the engaging cylinder 6. As shown in FIG.

In this means, as shown in FIG. 1, by fitting the refill container 40 to the inner surface of the storage cylinder 22, each flexible piece 32 is attached to the surface of the refill container 40 so as not to be deformed by bending inward. In this contact state, the lower end of the flexible piece 32 is pressed against the inner peripheral surface 8i of the engaging tube 6. As shown in FIG.
According to this structure, when the refill container 40 is stored in the storage tube 22, the fitting portion A (lower end portion 33 of the flexible piece 32) and the fitted portion B (the inner peripheral surface 8i of the engagement tube 6) are connected to each other. ), it is possible to reduce the risk of the inner container body 20 unexpectedly detaching from the outer container body 2 .

The fifth means has the first means or the second means, and the fitted portion B is formed as an outer peripheral surface 8 о of the engaging cylinder 6 rising from the bottom wall 4,
The storage tube 22 has a lower end opening and is rotatably inserted into the outer container body 2,
The fitting portion A of the storage tube 22 is screwed to the fitting portion B. As shown in FIG.

In this means, as shown in FIG. 6(A), the fitted portion B is formed as an outer peripheral surface 8? The housing cylinder 22 has an opening at the lower end and is rotatably inserted into the outer container body 2, and the fitting portion A of the housing cylinder 22 is screwed to the fitting portion B. As shown in FIG.
With this structure, the inner container 20 cannot be removed unless the inner container 20 is unscrewed from the outer container 2. Therefore, the inner container 20 can be reliably removed from the outer container 2 unexpectedly. can be prevented.

According to the present invention, the container body for storing the refill container is divided into two bodies, the inner container body and the outer container body, and these two bodies are detachably fitted together, so that both can be disposed separately. can be done.
Further, according to the present invention, the fitting force between the inner housing body and the outer container body can be designed for ease of use, thereby making it easy to remove the inner housing body from the outer container body, for example. or both can be made to avoid unintentional detachment

1 shows the structure of the double container according to the first embodiment of the present invention, FIG. It is sectional drawing which abbreviate|omits a cap and looked from the same direction. The structure of the double container in FIG. 1 is shown with the cap removed, where (A) is a side view and (B) is a half-sectional view seen from the front. Fig. 1 shows the action of the double container, Fig. 1(A) shows the middle of the process of removing the refill container from the state of Fig. 1(B), and Fig. 1(B) shows the state where the refill container is removed. FIG. 3(C) is an intermediate view of the process of further separating the inner container and the outer container after removing the refill container. The structure of the double container according to the second embodiment of the present invention is shown, wherein (A) is a half sectional view of the entire double container as seen from the front direction, and (B) is a cap removed. It is a half cross-sectional view seen from the front direction after the. FIG. 4 shows the operation of the double container, in which (A) is an intermediate view of the process of removing the refill container, and (B) is the inner container body and the outer container body after the refill container is removed. It is a view in the middle of the process of separating the. The structure of the double container according to the third embodiment of the present invention is shown, and FIG. It is a half cross-sectional view seen from the front direction after the. FIG. 7 shows the action of the double container of FIG. 7, where (A) is a view during the process of removing the refill container, and (B) is a view showing the inner container body and the outer container body after the refill container is removed. It is a view in the middle of the process of separating the.

1 to 3 show a double container according to a first embodiment of the invention. The double container of this embodiment consists of a container main body 1, a refill container 40, and a cap 60. As shown in FIG. Each of these members can be made of synthetic resin, for example. More detailed materials will be described later.

The container body 1 is a container body for containing the refill container 40, and consists of an outer container body 2 and an inner container body 20 in the present invention.
The inner housing body 20 and the outer container body 2 are formed as separable separate bodies.

The outer container body 2 is a bottomed cylindrical member as a whole. Engagement cylinders 6 for fitting with the inner container 20 are erected from the upper surface with a certain distance from the outer peripheral wall 12 .
In the illustrated example, the inner portion of the outer peripheral portion 4a of the bottom wall 4 is formed with a horizontal raised portion 4b.
An upward stepped portion 14 is formed on the inner peripheral portion of the upper surface of the outer peripheral wall 12 as shown in FIG. 1(B).
The outer container body 2 can be made of a transparent material.
Further, the outer container body 2 can be made of, for example, polyethylene terephthalate (PET) or amorphous polyester resin (PETG, PCTA, PCTG, etc.).

The engaging tube 6 is a part for fitting with a housing tube 22 described later, and is formed to be shorter than the outer peripheral wall 12 .
In the present embodiment, the inner peripheral surface 8i of the engaging tube 6 is used as a fitted portion B for fitting to a fitting portion A of a housing tube 22, which will be described later.
In the illustrated example, an annular engaging projection is provided around the inner peripheral surface 8i of the engaging tube 6 as a first engaging means 10 for engaging with the fitting portion A side described later.
These structures can be changed as appropriate, and for example, the engaging protrusions can be omitted.
Further, the fitted portion B does not necessarily have to be the inner peripheral surface 8 i of the engaging tube 6 . The fitted portion B can be a substantially vertical fitted surface portion formed at an appropriate location on the lower portion of the outer container body 2 .

The inner container 20 is a member for containing a refill container, has a substantially cylindrical shape as a whole, and is formed taller than the outer peripheral wall 12 .
The inner container 20 has a storage cylinder 22 which opens the insertion opening O of the refill container 40 on the upper end side. In this embodiment, as shown in FIG. An auxiliary cylindrical portion 28 is vertically provided from a portion near the portion 24 via an outward flange 26 .
The lower end portion of the housing cylinder 22 is fitted into the engagement cylinder 6 , and the auxiliary cylinder portion 28 is inserted into the outer peripheral wall 12 .
The inner container 20 can be made of a material that can be decorated with pictures, patterns, characters, and the like.
Also, the inner container 20 can be made of, for example, polypropylene (PP).

The storage cylinder 22 is a vertically oriented cylinder for storing the refill container 40 .
The lower end of the cylinder wall of the storage cylinder 22 is formed into a fitting part A that can be fitted to the fitted part B of the outer container body 2 (the inner peripheral surface 8i of the engaging cylinder 6 in the illustrated example). .
In this embodiment, the storage cylinder 22 is formed into a cylindrical body with an opening at the lower end, and a plurality of slits 30 extending upward from the lower end of the cylinder wall are bored. A cylindrical wall portion between the cuts 30 forms a flexible piece 32 that can be flexed and deformed inward.
The lower end portions 33 of these flexible pieces 32 are used as fitting portions A. As shown in FIG.
In the illustrated example, the fitting portion A is formed to be thicker as it goes from the lower end side to the upper end side. In the illustrated example, a contacting projection L is formed to abut against the lower part of the outer peripheral surface.
By doing so, the flexible piece 32 is prevented from bending inward when the refill container 40 is fitted in the inner container 20 . As will be described later, this ensures the contact (pressure contact) of the fitting portion A with the fitting portion B. As shown in FIG.
However, these structures can be modified as appropriate, and the abutting protrusion L may be omitted, and the entire inner surface of the flexible piece 32 may abut against the outer peripheral surface of the refill container 40 .

In this embodiment, the fitting portion A has a second engaging means 34 that engages with the first engaging means 10 at a position facing the fitted portion B. As shown in FIG. The second engaging means 34 in the illustrated example is formed in a concave portion (engaging element receiving portion) into which the engaging projection is fitted.
However, unlike the illustrated example, the first engaging means 10 may be formed as a concave engaging means, and the second engaging means 34 may be formed as a convex engaging means.
The first engaging means 10 and the second engaging means 34 are engaged with each other, and the two engaging means form a retaining mechanism T for restricting the inner container body 20 from being pulled out from the outer container body 2. It is
The locking force between these engaging means 10 and 34 is greater than the frictional force acting between the refill container 40 and the storage cylinder 22 when the refill container 40 fitted in the storage cylinder 22 is pulled upward. is designed to
By doing so, it is possible to prevent the inner container body 20 from unexpectedly coming off from the outer container body 2 when the finger is put on the knob portion 50 to pull it up from the state of FIG. 1(B). Therefore, the refill container 40 can be reliably pulled out from the inner container 20 by the pulling operation.

In the illustrated example, the auxiliary tubular portion 28 has a large-diameter lower tubular portion 28a extending vertically from a small-diameter upper tubular portion 28c via an enlarged diameter portion 28b.
In the illustrated example, the lower tubular portion 28 a is inserted into the outer peripheral wall 12 , while the enlarged diameter portion 28 b and the upper tubular portion 28 c are arranged above the upper end of the outer peripheral wall 12 .
In this structure, the upper cylindrical portion 28c functions as a gripping portion (gripping cylinder), and by gripping and lifting the upper cylindrical portion 28c from the state shown in FIG. 2 can be distinguished.
A male threaded portion MS1 is formed on the outer peripheral surface of the upper cylindrical portion 28c to be screwed with a cap 60, which will be described later.
Further, in the present embodiment, engaging recesses R that also serve as threaded portions are formed at appropriate locations on the outer peripheral surface of the upper cylindrical portion 28c (located on both left and right sides in FIG. 1(B) in the illustrated example). A joint portion R is provided so as to accommodate a later-described knob portion 50 .
As shown in FIG. 2(A), the engagement recess R in the illustrated example has a horizontal recessed bottom rb and an inverted V shape extending from both ends of the recessed bottom rb, as shown in FIG. and a concave side portion rs extending in an upward direction. However, the shape of the engaging recess R can be changed as appropriate.
The lower tubular portion 28 a serves as a guide tube that is inserted into the inner surface of the outer peripheral wall 12 when fitting the inner housing body 20 into the outer container body 2 .
By simply inserting the lower cylindrical portion 28a into the inner surface of the outer peripheral wall 12, the positions of the fitting portion A on the inner container body 20 side and the fitted portion B on the outer container body 2 side are aligned. there is
The lower tubular portion 28 a has a tubular length approximately equal to the vertical length of the outer peripheral wall 12 . As shown in FIG. 1(B), an engaging projection 29 that engages with the upward stepped portion 14 is attached to the upper end portion of the outer surface of the lower cylindrical portion 28a.

The refill container 40 is a container body that can be refilled with respect to the container main body 1, and is fitted into the storage cylinder 22 so as to be pulled out upward.
In the illustrated refill container 40, a flange 46 is attached to the upper end of a cylinder peripheral wall 44 erected from the peripheral end of a bottom plate 42, and the flange 46 is placed on the upper end 24 of the housing cylinder 22. ing.
As shown in FIG. 1A, an annular abutment rib 47 that bites into a packing P, which will be described later, is provided on the upper surface of the collar portion 46 .
A ring tube 48 surrounding the upper end portion 24 of the storage tube 22 is vertically provided from the peripheral end of the collar portion 46 .
A pair of knobs 50 that are fitted into the engagement recesses R are vertically provided from the lower end of the ring cylinder 48 .
An anti-slip MS2 is attached to the outer surface of this knob 50. - 特許庁As shown in FIG. 2(A), the non-slip MS2 in the illustrated example is formed in a plurality of oblique ridges corresponding to the thread of the male screw portion MS1, and is a part of the screw structure. It has the appearance of However, this appearance can be changed as appropriate.

The cap 60 has a cap peripheral wall 64 vertically extending from the peripheral edge of the top plate 62 to fit the upper cylindrical portion 28c.
A female threaded portion FS that meshes with the male threaded portion MS1 is formed on the inner surface of the cap peripheral wall 64 .
A packing P is incorporated in the back surface of the top plate 62 .

When using the container of the present invention, first, as shown in FIG. 1(B), the cap 60 is removed from the state shown in FIG. 1(A). As shown in A), the refill container 40 can be removed from the inner container 20 by grasping the pair of knobs 50 from both sides of the refill container 40 in the radial direction and pulling it up. (B)) can be filled with a new refill container 40 .
1(B) with the cap 60 removed, the flexible piece 32 of the inner container 20 is positioned between the inner peripheral surface 8i of the engaging cylinder 6 of the outer container body 2 and the outer peripheral surface of the refill container 40. Since they are sandwiched and held between them, the fitting portion A does not separate from the fitted portion B, and the inner container 20 is prevented from being pulled out.
Furthermore, when the entire double container is to be discarded, the outer surface of the outer container body 2 is held and the upper cylindrical portion 28c, which is the grip portion, is pulled up, and as shown in FIG. Since it bends to the direction, the fitting part A separates from the to-be-fitted part B. As shown in FIG.
Then, as shown in FIG. 3C, the inner container body 20 is pulled up from the outer container body 2 . Thereby, the inner container body 20 and the outer container body 2 can be separated and discarded.

Another embodiment h of the present invention will be described below. In these descriptions, descriptions of the same structures as those of the first embodiment are omitted.

4 and 5 show a double container according to a second embodiment of the invention.
In this embodiment, the structure of the inner container 20 and the structures of the fitting portion A and the fitted portion B are changed from the configuration of the first embodiment.
That is, the auxiliary cylinder portion 28 is omitted from the structure of the inner container 20 of the first embodiment, and the storage cylinder 22 is replaced by a large-diameter cylinder portion inserted into the outer peripheral wall 12 as shown in FIG. A medium-diameter tubular portion 22b and a small-diameter tubular portion 22c protrude upward from the upper end of the medium-diameter tubular portion 22b, respectively.
The large-diameter cylindrical portion 22a is inserted inside the outer peripheral wall 12. As shown in FIG.
In the present embodiment, the outer peripheral surface 8' of the engaging cylinder 6 is used as the fitted portion B, and the fitted portion B and the fitting portion A, which is the lower end portion of the storage cylinder 22, are fitted to each other. It is set as follows.
The second engaging means 34 is formed on the inner surface of the lower end portion of the storage tube 22 which is the fitting portion A. As shown in FIG. The illustrated second engaging means 34 is formed of a single annular groove, but its structure can be changed as appropriate.

6 and 7 show a double container according to a third embodiment of the invention.
In this embodiment, the fitting portion A is screwed to the fitted portion B in the configuration of the second embodiment. That is, as shown in FIG. 7B, the first engaging means 10 is shaped like a male thread, and the second engaging means 34 is shaped like a female thread. Further, the housing cylinder 22 is formed to be rotatable with respect to the outer peripheral wall 12 .
As a result, the inner container body 20 can be reliably attached to and detached from the outer container body 2 by screwing and unscrewing.
In the illustrated example, the first engaging means 10 and the second engaging means 34 are formed as normal threads, but they can also be formed as reverse threads.

Next, effects of the embodiment of the present invention will be described.
As a matter common to all the embodiments, the container body 1 for storing the refill container 40 has a vertically oriented storage cylinder 22 for storing the refill container 40, and an insertion opening for the refill container 40 is provided at the upper end of the storage cylinder 22. An inner container 20 having an opening O and a bottomed tubular outer container 2 into which the inner container 20 is inserted are formed so as to be separable from each other, and the bottom wall 4 side of the outer container 2 Since the fitting portion A formed at the lower portion of the storage cylinder 22 is detachably fitted to the fitting portion B formed in the inner container body 20 and the outer container body 2, Can be disposed of separately.
Next, engaging means for separably locking each other is provided on the fitting portion A and the fitted portion B as a retaining mechanism T for restricting the inner container body 20 from being pulled out from the outer container body 2 . 10 and 34, when using the double container of the present invention, it is possible to eliminate or reduce the risk of the inner container body 20 being unexpectedly detached from the outer container body 2, thus improving usability. good.
The fitted portion B is formed as an inner peripheral surface 8i of an engaging cylinder 6 that rises from the bottom wall 4, and the housing cylinder 22 is formed at the lower end opening. By drilling a plurality of slits 30 extending upward from the lower end side, the cylindrical wall portion between each slit 30 forms a flexible piece 32, and the lower end of these flexible pieces 32 is formed. In the aspect in which the fitting portion A is separably fitted to the fitted portion B, the inner container body 20 can be easily removed from the outer container body 2 .
Further, by fitting the refill container 40 to the inner surface of the storage cylinder 22, each flexible piece 32 is in contact with the surface of the refill container 40 so as not to bend and deform inward. In the mode in which the lower end of the flexible piece 32 is pressed against the inner peripheral surface 8i of the engaging cylinder 6, the risk of the inner container body 20 unexpectedly detaching from the outer container body 2 can be reduced.
The fitted portion B is formed as an outer peripheral surface 8 о of the engaging cylinder 6 which rises from the bottom wall 4 . In the state in which the fitting portion A of the storage tube 22 is screwed to the fitting portion B, it is possible to reliably prevent the inner container 20 from unexpectedly detaching from the outer container 2 .

DESCRIPTION OF SYMBOLS 1... Container main body 2... Outer container body 4... Bottom wall 4a... Outer peripheral part 4b... Protruding part 6... Engagement tube 8i... Inner peripheral surface 8o... Outer peripheral surface 10... First engaging means (engager) 12... Outer peripheral wall DESCRIPTION OF SYMBOLS 14... Upward step part 20... Inner container 22... Storage cylinder 22a... Large diameter cylinder part 22b... Medium diameter cylinder part 22c... Small diameter cylinder part 24... Upper end part 26... Outward flange 28... Auxiliary cylinder part 28a... Lower cylinder part 28b... Expanded diameter part 28c... Upper cylindrical part 29... Engagement convex part 30... Cut and split 32... Flexible piece 33... Lower end part 34... Second engagement means (engagement receiving part)
DESCRIPTION OF SYMBOLS 40... Refill container 42... Bottom plate 44... Cylinder peripheral wall 46... Collar part 47... Contact rib 48... Ring cylinder 50... Knob part
60... Cap 62... Top plate 64... Peripheral wall of cap A... Fitting part B... Fitted part FS... Female screw part L... Protrusion for contact MS1... Male screw part MS2... Non-slip O... Insertion port P... Packing R... Engagement concave portion rb... Concave bottom portion rs... Concave side portion T... Retaining mechanism

Claims (5)

a cylindrical container body (1) with an upper opening;
and a refill container (40) housed in the container body (1),
The container body (1) has a vertically oriented storage cylinder (22) for storing the refill container (40), and an insertion opening (O) for the refill container (40) at the upper end of the storage cylinder (22). It is formed of an open inner container (20) and a bottomed cylindrical outer container (2) into which the inner container (20) is inserted,
The inner housing body (20) and the outer container body (2) are formed as separable separate bodies,
A fitting part (A) formed at the bottom of the storage cylinder (22) is detachably attached to a fitting part (B) formed on the bottom wall (4) side of the outer container body (2). A double container, characterized in that it is configured to fit. The fitting part (A) and the fitting part (B) can be separated from each other as a retaining mechanism (T) for restricting the withdrawal of the inner container (20) from the outer container (2). 2. A double container according to claim 1, characterized in that it is formed with engaging means (10, 34) which engage with each other. The fitted portion (B) is formed as an inner peripheral surface (8i) of an engaging tube (6) standing from the bottom wall (4),
The storage tube (22) is formed with a lower end opening, and a plurality of slits (30) extending upward from the lower end side of the storage tube (22) are drilled so that each of the slits (30) is formed. The tubular wall portion between the flexible pieces (32) forms a flexible piece (32),
The fitting part (A) formed by the lower ends (33) of these flexible pieces (32) is provided so as to be separably fitted to the fitted part (B). The double container according to claim 1 or claim 2. By fitting the refill container (40) to the inner surface of the storage cylinder (22), each flexible piece (32) abuts on the surface of the refill container (40) so as not to bend and deform inward. and
The double container according to claim 3, characterized in that the lower end (33) of the flexible piece (32) is pressed against the inner peripheral surface (8i) of the engaging tube (6) in this abutting state. . The fitted portion (B) is formed as an outer peripheral surface (8') of an engaging tube (6) standing from the bottom wall (4),
The storage cylinder (22) has a lower end opening and is rotatably inserted into the outer container body (2),
2. The double container according to claim 1, wherein the fitting portion (A) of the storage tube (22) is screwed to the fitting portion (B).

Images