JP5767954B2 - Double container - Google Patents

Description

  The present invention relates to a double container.

  Store the inner container that contains cosmetics such as lotion, shampoo, rinse, liquid soap, etc. in the outer container, and operate the dispenser attached to the mouth of the inner container. A double container that discharges water is known. As such a double container, a fixing member for holding the inner container in the outer container is formed by fitting the mouth of the inner container on the inner side and fitting the opening of the outer container on the outer side. The provided structure is known (for example, refer patent document 1).

Japanese Patent No. 4396888

  The present invention provides a double container excellent in operability in which the inner container can be firmly held in the outer container having a polygonal shape in cross section and the inner container can be easily removed when the inner container is removed. The purpose is to do.

In order to solve the above problems, the present invention proposes the following means.
The double container according to the present invention is a container of the inner container between an inner container in which contents are stored, an outer container having a polygonal shape in cross-sectional view for detachably storing the inner container, and the outer container. A fixing member that restricts movement in the axial direction and fixes the inner container to the outer container, and the fixing member is detachably engaged with the outer container, and the engaging member A rotating member arranged to be rotatable around a container axis of the inner container, and the engaging member is elastically deformable in a radial direction perpendicular to the container axis direction, and the outer container An engagement piece that is engaged from the radial direction is provided on the rotary member, and the rotating member protrudes from the opposite side of the outer container toward the engagement member side with the engagement member interposed therebetween in the radial direction. A pressing protrusion is provided, and the rotating member is configured such that the pressing protrusion overlaps the engagement piece in the radial direction, A pressing position to restrict the deformation of Kigakarigohen, is characterized in that a release position for releasing the restriction of deformation of the engaging pieces, between which is configured to be rotatable to the container axis.

Due to such a feature, when the rotating member is located at the above-mentioned pressing position, the elastic deformation of the engaging piece toward the pressing protrusion is restricted, so that the engagement between the engaging piece and the outer container is released. Can be suppressed.
On the other hand, when removing the fixing member, the rotating member is rotated with respect to the engaging member, and the rotating member is positioned at the release position described above, so that the pressing protrusion side of the engaging piece (opposite to the outer container) Since the elastic deformation to the side) is allowed, the engagement between the engagement piece and the outer container can be easily released.
Accordingly, a double container excellent in operability is provided, in which the inner container can be firmly held in the outer container having a polygonal shape in cross section, and the inner container can be easily removed when the inner container is removed. it can.

  In addition, a biasing member that biases the inner container in the container axial direction and presses the inner container against the outer container or the fixing member may be provided.

  In this case, the inner container can be stably held by suppressing the backlash of the inner container in the container axial direction in the outer container.

Further, the biasing member is provided on the rotating member, abuts in the container axial direction on a shoulder portion of the inner container that protrudes radially outward from a lower end edge of the mouth , An elastic pressing piece that urges the rotating member and the inner container in a direction away from each other in the container axial direction may be used.

  In this case, since an elastic pressing piece that abuts against the shoulder portion of the inner container and urges the rotating member and the inner container away from each other is formed, the container axial direction of the inner container is formed in the outer container. It is possible to hold the inner container stably by suppressing rattling.

The urging member may be an elastic member that is disposed between the bottom of the outer container and the bottom of the inner container and is elastically deformable along the container axial direction.

  In this case, the inner container can be stably held by suppressing the backlash of the inner container in the container axial direction in the outer container.

  According to the double container according to the present invention, the inner container can be firmly held in the outer container having a polygonal shape in cross section, and the inner container can be easily removed when the inner container is removed. Can provide an excellent double container.

It is a fragmentary sectional view of the double container which concerns on embodiment of this invention. In the double container which concerns on embodiment of this invention, it is a fragmentary sectional view which shows the state which decomposed | disassembled the fixing member and the outer container. It is a top view of the double container which concerns on embodiment of this invention. It is sectional drawing which shows the principal part of the double container which concerns on embodiment of this invention. It is a top view which shows the rotating member and outer container in a pressing position. It is a top view which shows the rotation member and outer container in a cancellation | release position. It is sectional drawing which shows the principal part of the double container in a cancellation | release position. It is a fragmentary sectional view of the double container which shows the other structure of this invention.

Hereinafter, a double container according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a double container 1 according to the present embodiment includes a bottomed cylindrical cartridge body 2, a polygonal outer container 3 that detachably stores the cartridge body 2, and will be described later. A top-cylindrical fixing member 4 that fixes the inner container 11 to the outer container 3 and a top-cylindrical overcap 5 are provided. In the illustrated example, the central axes of the cartridge body 2, the fixing member 4, and the overcap 5 are arranged on a common axis. Hereinafter, this common axis is referred to as a container axis O, the overcap 5 side along the container axis O direction is the upper side, the bottom 19 side of the cartridge body 2 is the lower side, and the direction perpendicular to the container axis O is the radial direction. The direction around the container axis O is the circumferential direction.

As shown in FIGS. 1 and 2, the cartridge body 2 includes a bottomed cylindrical inner container 11 in which contents are stored, and a discharger 12 attached to the inner container 11.
The shoulder portion 13 of the inner container 11 is gradually reduced in diameter toward the upper side, a lower step portion 15 projecting radially inward from the upper end edge of the body portion 14, and an inner peripheral edge of the lower step portion 15 The vertical cylinder part 16 extended toward the upper direction from the upper part, and the upper step part 17 projected toward the inner side of radial direction from the upper end edge of the vertical cylinder part 16 are provided.
The mouth portion 18 of the inner container 11 has a cylindrical shape extending upward from the inner peripheral edge of the upper step portion 17. Further, the upper end edge of the mouth portion 18 protrudes upward from the upper end edge of the outer container 3. In addition, although the shape of the inner container 11 is not specifically limited, Of the mouth part 18, the shoulder part 13, and the trunk | drum 14, at least the cross-sectional shape above the shoulder part 13 is preferable circular. In this embodiment, the cross-sectional shape of the shoulder portion 13 and the mouth portion 18 is formed in a circular shape. Moreover, the cross-sectional shape of the trunk | drum 14 may be circular, and may be polygonal shape which follows the inner surface shape of the outer container 3. FIG.

The discharger 12 includes a pump member 21 that discharges the contents stored in the inner container 11, and a mounting cap 22 that attaches the pump member 21 to the inner container 11.
First, the mounting cap 22 includes a mounting cylinder 24 and a guide cylinder 26 that is provided above the mounting cylinder 24 and guides the vertical movement of the pump head 25 described later along the container axis O direction.
The mounting cylinder 24 is formed to have a larger diameter than the guide cylinder 26 and is screwed to the mouth portion 18 of the inner container 11 described above. A flange-like pump mounting portion 27 projects from the inner peripheral surface of the connecting portion of the mounting tube 24 and the guide tube 26 toward the inside in the radial direction. 21 is fixed.

The pump member 21 extends coaxially with the container axis O, and includes a cylindrical pump main body 28 fixed to the pump mounting portion 27, and a pump head 25 mounted on the upper end portion of the pump main body 28.
The pump body 28 is inserted into the mounting cap 22 and the inner container 11, and an upper end portion thereof is positioned inside the guide tube 26 in the mounting cap 22, and a lower end portion thereof is the trunk portion 14 of the inner container 11. Located inside. In addition, a flange portion 28a projects from the pump body 28 toward the outer side in the radial direction at a midway portion along the container axis O direction. The flange portion 28a is supported by the upper end opening edge of the mouth portion 18 of the inner container 11 with the packing 29 interposed therebetween.

  Inside the pump main body 28, an introduction path (not shown) through which the contents accommodated in the inner container 11 can flow is formed. The introduction path has a lower end side communicating with the inside of the inner container 11 through the suction cylinder 30, and an upper end side communicating with a discharge port 25 a described later of the pump head 25. Further, a piston member (not shown) is disposed in a portion of the pump body 28 located below the pump mounting portion 27.

  The pump head 25 is disposed in an upwardly biased state at the upper end of the pump body 28, and has an outer diameter smaller than the inner diameter of the guide cylinder 26 of the mounting cap 22. It is possible to move along. The pump head 25 is formed with a discharge port 25a for discharging the contents introduced into the introduction path described above to the outside.

  As shown in FIGS. 1 to 3, the outer container 3 is formed in a square shape with a transverse cross section along the radial direction, and has a bottomed cylindrical shape that opens upward, and has a square shape with a cross section. The container axis | shaft O mentioned above has passed through the center part. The body portion 31 of the outer container 3 includes four corner portions 32 (see FIG. 3) extending along the container axis O direction, and four main wall portions 33 formed between adjacent corner portions 32. It is configured. The corners 32 described above are each formed in a circular arc shape protruding outward in the radial direction in a cross-sectional view, and the end portions facing each other in the circumferential direction among the adjacent corner portions 32 are planar main wall portions. 33.

As shown in FIGS. 2 and 4, a protruding portion 34 protruding upward is formed on the inner peripheral edge of the upper end opening edge of the outer container 3 over the entire periphery.
Engagement recesses 35 that are recessed toward the outside in the radial direction are formed at the upper end portions of the inner surfaces of the main wall portions 33. These engaging recesses 35 are rectangular grooves in a longitudinal sectional view along the container axis O direction, and are disposed in an intermediate portion along the circumferential direction of each main wall 33 and extend along the circumferential direction. doing. In the illustrated example, the engagement recess 35 is located between the lower step portion 15 and the upper step portion 17 of the inner container 11 in the container axis O direction.
Moreover, the part located between the protrusion part 34 and the engagement recessed part 35 along the container axis | shaft O direction among the outer containers 3 is made into the taper part 38 which an internal diameter gradually reduces as it goes below.

The fixing member 4 includes an engaging member 41 that is detachably engaged with the outer container 3, and a rotating member 44 that is rotatably held around the container axis O inside the engaging member 41.
As shown in FIGS. 2 to 4, the engagement member 41 is formed in a top-like cylindrical shape in which the cross-sectional shape along the radial direction is formed in a square shape, and the container described above in the central portion of the square shape formed by the cross-sectional shape. Axis O passes. Specifically, the engaging member 41 includes a peripheral wall portion 48 that is engaged in the outer container 3, and a top portion 49 that protrudes radially inward from the upper end portion of the peripheral wall portion 48. .

  The peripheral wall portion 48 includes a corner portion 42 (see FIG. 3) and a main wall portion 43 extending along the body portion 31 of the outer container 3 described above. As shown in FIG. 2, a pair of slits 45 cut upward are formed in the middle portion along the circumferential direction at the lower end edge of each main wall portion 43, with a pair spaced apart in the circumferential direction. (Only one slit 45 is shown in FIG. 2). And in each main wall part 43, between the slits 45 adjacent in the circumferential direction, ie, the intermediate part along the circumferential direction among each main wall part 43, and the engagement piece 46 which can elastically deform along a radial direction. It has become. In the main wall portion 43, the lower end edge of the engagement piece 46 is positioned above the other portion.

  As shown in FIGS. 2 and 4, an engagement protrusion 47 that protrudes outward in the radial direction is formed at the lower end of each engagement piece 46. These engagement protrusions 47 are formed in a semicircular shape in a longitudinal sectional view along the container axis O direction, and extend over the entire length along the circumferential direction on the outer surface of the engagement piece 46. In this case, each engagement protrusion 47 is disposed at a position overlapping the engagement recess 35 of the outer container 3 in the radial direction, and is undercut fitted into the engagement recess 35.

  An outer flange portion 51 that protrudes outward in the radial direction is formed at an intermediate portion along the container axis O direction in the peripheral wall portion 48 of the engaging member 41. The outer flange portion 51 is formed over the entire circumference in the circumferential direction of the peripheral wall portion 48 and is disposed on the protruding portion 34 of the outer container 3 described above.

  The top 49 is a substantially square plate-like shape formed so as to cover the shoulder 13 of the inner container 11 from above (see FIG. 3), and a circular opening 52 is formed in the center in a plan view. ing. Note that the upper end edge of the peripheral wall portion 48 described above protrudes upward from the top portion 49.

The rotating member 44 is a cylindrical member disposed so as to penetrate through the opening 52 of the engaging member 41, and the upper peripheral portion 61 and the lower cylindrical portion 62 extend the inner peripheral edge of the top portion 49 in the container axis O direction. It is held in a clamped state.
The upper cylinder portion 61 is inserted into the opening 52 of the engaging member 41 from above and surrounds the mounting cylinder 24 of the mounting cap 22 from the outside in the radial direction. In the container axis O direction, the upper cylindrical portion 61 faces the upper step portion 17 of the inner container 11 from above. Further, a flange portion 63 protruding outward in the radial direction is formed on the upper cylinder portion 61, and this flange portion 63 is in contact with the inner peripheral edge of the top portion 49 of the engaging member 41 from above.

  A portion of the upper cylinder portion 61 that is positioned above the flange portion 63 projects upward from the upper end edge of the engagement member 41. In addition, a rib 64 protruding outward in the radial direction extends along the container axis O direction in a portion of the upper cylinder portion 61 located above the flange portion 63. A plurality of the ribs 64 are arranged at intervals along the circumferential direction.

  On the other hand, a portion of the upper cylinder portion 61 located below the flange portion 63 is inserted into the opening 52 of the engagement member 41. In addition, a plurality of protrusions 65 protruding outward in the radial direction are formed on the outer surface of the lower end portion of the upper tube portion 61 at intervals in the circumferential direction. In addition, the outer surface of the lower end edge (lower end edge of the projection part 65) of the upper cylinder part 61 is formed in the taper shape which an outer diameter reduces as it goes below.

  The lower cylinder part 62 is inserted into the peripheral wall part 48 of the engaging member 41 from below, and surrounds the vertical cylinder part 16 of the inner container 11 from the outside in the radial direction. The lower cylindrical portion 62 is disposed in a portion of the engaging member 41 located below the top portion 49 and faces the lower step portion 15 of the inner container 11 from above.

  On the inner surface of the upper end portion of the lower cylinder portion 62, a plurality of accommodating portions 66 that are recessed outward in the radial direction are formed at intervals in the circumferential direction. The protrusions 65 of the upper cylinder part 61 are individually undercut fitted into the storage parts 66. And the upper cylinder part 61 and the lower cylinder part 62 rotate together in the state which clamped the inner periphery of the top part 49 between the flange part 63 of the upper cylinder part 61, and the upper end edge of the lower cylinder part 62. It has become. In addition, the inner surface of the upper end edge of the lower cylinder part 62 is formed in the taper shape which an outer diameter expands as it goes upwards.

  Moreover, the stopper 67 which protrudes toward a radial inside is formed in the intermediate part along the container-axis O direction among the inner surfaces of the lower cylinder part 62 over the perimeter of a circumferential direction, or intermittently. . While the lower end edge of the upper cylinder part 61 mentioned above contacts or approaches the stopper 67 from above, the upper step part 17 of the inner container 11 contacts or approaches from below.

  Here, as shown in FIGS. 4 and 5, a plurality of pressing protrusions 71 protruding outward in the radial direction are formed on the outer surface of the lower end portion of the lower cylindrical portion 62 at intervals along the circumferential direction. ing. These pressing protrusions 71 are rectangular protrusions in a longitudinal sectional view along the container axis O direction, and extend along the circumferential direction. Further, the outer peripheral surface of the pressing protrusion 71 located on the outer side in the radial direction is formed in an arc shape that follows the outer shape of the lower cylindrical portion 62, and both end portions along the circumferential direction have a diameter toward the outer side in the circumferential direction. It is formed in the inclined surface extended toward the inner side of a direction.

  Each pressing protrusion 71 is in close proximity to or in contact with the engagement piece 46 formed on each main wall 43 of the engagement member 41 described above from the inside in the radial direction. The elastic deformation to the outside of the direction is regulated. Specifically, each pressing protrusion 71 overlaps with each engagement recess 35 of the outer container 3 and each engagement protrusion 47 of the engagement member 41 when viewed from the radial direction, that is, the main wall portions 33, 43. It faces the central part in the circumferential direction. In the present embodiment, each pressing protrusion 71 is in a position corresponding to each of the engaging recess 35 of the outer container 3 and each of the engaging protrusions 47 (engaging pieces 46) of the engaging member 41. The same number as the joint recess 35 and each engagement protrusion 47 is formed. In the illustrated example, the pressing protrusions 71 are formed at four positions every 90 degrees along the circumferential direction in the engaging member 41. In addition, the length along the container axis O direction of each pressing protrusion 71 is longer than the engaging protrusion 47 of the engaging member 41 described above.

  The rotating member 44 of the present embodiment includes a pressing position in which each pressing protrusion 71 overlaps the engaging protrusion 47 in the radial direction and restricts deformation of the engaging piece 46 inward in the radial direction, and a pressing protrusion. 71 is configured to be able to rotate around the container axis O between a release position where the engagement protrusion 47 is avoided in the circumferential direction (does not overlap in the radial direction) and the deformation restriction of the engagement piece 46 is released. Has been. In the example shown in FIG. 6, each pressing projection 71 faces each corner 32, 42 in the radial direction at the release position.

  As shown in FIGS. 2 and 4, a plurality of elastic pressing pieces (biasing members) 72 extending in the circumferential direction and straddling the pressing protrusions 71 from below are formed at the lower end edge of the lower cylindrical portion 62. Has been. These elastic pressing pieces 72 are formed in an arch shape that bulges downward, and are configured to be elastically deformable along the container axis O direction. Each elastic pressing piece 72 is in contact with the upper surface of the lower step portion 15 of the shoulder portion 13 of the inner container 11 in a state in which the rotating member 44 and the inner container 11 are urged away from each other. Thereby, the bottom 19 of the inner container 11 is pressed against the bottom 39 of the outer container 3.

  Further, as shown in FIG. 1, the overcap 5 is disposed so as to cover the pump head 25 and the fixing member 4, and the lower end edge thereof is in contact with the upper end edge of the body portion 31 in the outer container 3. Thus, the engagement member 41 is externally fitted.

Next, the effect | action of the double container 1 mentioned above is demonstrated. In the following description, a method for attaching and removing the fixing member 4 will be mainly described.
First, the cartridge body 2 is inserted into the outer container 3 from above.
Subsequently, the fixing member 4 is attached to the outer container 3. Specifically, as shown in FIGS. 6 and 7, the rotating member 44 is rotated around the container axis O with respect to the engaging member 41, and the pressing protrusion 71 avoids the engaging protrusion 47 in the radial direction. To position. Then, between the fixing member 4 and the outer container 3, the fixing member 4 is moved from above into the outer container 3 in a state where the corner portions 32, 42 and the main wall portions 33, 43 are aligned in the circumferential direction. Insert into. Then, after the upper end portion of the pump member 21 of the discharger 12 and the mounting cap 22 are inserted into the rotating member 44, the lower end portion of the fixing member 4 is inserted into the outer container 3.

  When the fixing member 4 is inserted into the outer container 3, each engaging protrusion 47 of the engaging member 41 contacts the inner surface of the main wall portion 33 of the outer container 3. At this time, a portion of the outer container 3 positioned between the protrusion 34 and the engagement recess 35 along the container axis O direction is a tapered portion 38 whose inner diameter gradually decreases as it goes downward. The engaging protrusion 47 moves downward while sliding on the taper 38 while elastically deforming radially inward from the upper end.

  Thereafter, the top of each engagement protrusion 47 climbs over the upper edge of the engagement recess 35, whereby each engagement piece 46 is restored and deformed. Thereby, each engagement protrusion 47 is each engaged in each engagement recessed part 35 of each main wall part 33 which opposes in radial direction. At this time, the outer flange portion 51 of the engaging member 41 abuts on the upper end edge of the body portion 31 of the outer container 3, and the elastic pressing piece 72 is urged in a direction in which the rotating member 44 and the inner container 11 are separated from each other. In contact with the upper surface of the lower step portion 15 of the inner container 11.

Subsequently, as shown in FIGS. 4 and 5, the rotating member 44 is rotated around the container axis O with respect to the engaging member 41, and the pressing protrusions 71 are in the pressing positions where they overlap the engaging protrusions 47 in the radial direction. Position. Accordingly, the pressing protrusion 71 is disposed on the opposite side of the engaging recess 35 with the engaging protrusion 47 interposed therebetween, and the movement of the engaging piece 46 inward in the radial direction is restricted.
Thus, the attachment of the fixing member 4 is completed.

  Next, when removing the cartridge body 2 from the outer container 3, first, the rotating member 44 is rotated around the container axis O with respect to the engaging member 41 and is positioned at the release position described above. Thereby, the restriction | limiting of a deformation | transformation of the engagement piece 46 is cancelled | released.

Next, the fixing member 4 is pulled out upward. In this case, the engagement protrusion 47 of the engagement member 41 is elastically deformed radially inward and moves upward while sliding the inner surface of the engagement recess 35, thereby Get over the top edge. As a result, the engagement between the engagement protrusion 47 and the engagement recess 35 is released, and the fixing member 4 is removed from the outer container 3.
Thereafter, the cartridge body 2 is pulled out from the outer container 3, and a new cartridge body 2 is inserted into the outer container 3, and the fixing member 4 is attached to the outer container 3 again by the mounting method described above. Thus, the replacement work of the cartridge body 2 is completed.

As described above, according to the double container 1 in the present embodiment, when the rotating member 44 is located at the pressing position, the elasticity of the engagement piece 46 toward the pressing protrusion 71 (in the radial direction) is obtained. Since the deformation is restricted, it is possible to suppress the engagement between the engagement piece 46 (engagement protrusion 47) and the engagement recess 35 of the outer container 3 from being released.
On the other hand, when the fixing member 4 is removed, the rotating member 44 is rotated with respect to the engaging member 41, and the rotating member 44 is positioned at the release position described above, so that the pressing protrusion 71 side of the engaging piece 46 is located. Since elastic deformation to the (inner side in the radial direction) is allowed, the engagement between the engagement piece 46 (engagement protrusion 47) and the engagement recess 35 of the outer container 3 can be easily released.
Therefore, the cartridge body 2 can be firmly held in the outer container 3 having a polygonal shape in cross section, and the cartridge body 2 can be easily detached when the cartridge body 2 is removed. 1 can be provided.

  Further, in the present embodiment, an elastic pressing piece 72 is formed that abuts the lower step portion 15 of the shoulder portion 13 of the inner container 11 and biases the rotating member 44 and the inner container 11 in the direction of separating. Therefore, the inner container 11 can be urged in the container axis O direction and pressed against the bottom 39 of the outer container 3. Therefore, the inner container 11 can be stably held in the outer container 3 by suppressing the backlash of the inner container 11 in the container axis O direction in the outer container 3.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

For example, in the above-described embodiment, the configuration in which the elastic pressing piece 72 is provided between the rotating member 44 and the shoulder portion 13 of the inner container 11 is described. However, the configuration is not limited thereto, and as illustrated in FIG. An elastic member (biasing member) 110 that can be elastically deformed along the container axis O direction may be provided between the bottom portion 39 and the bottom portion 19 of the inner container 11. In this case, a configuration in which the lower end edge of the engaging member 41 or the lower end edge of the lower cylindrical portion 62 of the rotating member 44 is in contact with the upper surface of the shoulder portion 13 is preferable.
According to this configuration, the inner container 11 can be urged in the direction of the container axis O and pressed toward the fixing member 4, and therefore, the container axis O of the inner container 11 in the outer container 3 as in the above-described embodiment. It is possible to hold the inner container 11 stably while suppressing backlash in the direction. In addition, you may make it the structure which uses both the elastic suppression piece 72 and the elastic member 110 which were mentioned above.

  In the above-described embodiment, the configuration in which the elastic pressing piece 72 formed integrally with the rotating member 44 is provided between the rotating member 44 and the inner container 11 is not limited thereto. A separate elastic member may be provided between the inner container 11 and the inner container 11.

Further, in the above-described embodiment, the configuration in which the engagement recess 35 is provided in each of the main wall portions 33 of the outer container 3 has been described. However, the present invention is not limited to this, and a plurality of locations are provided in each of the main wall portions 33. It doesn't matter. The fixing member 4 may be engaged with at least one of the main wall portions 33.
Further, in the above-described embodiment, the configuration in which the same number of the engagement pieces 46 and the pressing protrusions 71 are provided has been described. However, the present invention is not limited thereto, and the engaging pieces 46 and the pressing protrusions 71 may be different numbers.
Furthermore, in the above-described embodiment, the position where the pressing protrusion 71 avoids the engaging protrusion 47 in the radial direction is the release position. However, the present invention is not limited to this, and the restriction on the deformation of the engagement piece 46 is released. For example, the pressing protrusion 71 and the engagement piece may overlap at a part in the radial direction.

Moreover, although the case where the cross-sectional shape of the outer container 3 was formed in square shape was demonstrated in embodiment mentioned above, it is not restricted to this, A triangle, a pentagon, etc. can be changed suitably.
In the embodiment described above, the case where the inner container 11 is formed in a cylindrical shape has been described. However, the present invention is not limited to this, and the inner container 11 may be formed in a rectangular tube shape corresponding to the outer container 3.

Further, in the above-described embodiment, the configuration in which the fixing member 4 is engaged in the outer container 3 has been described. However, the configuration is not limited thereto, and the fixing member 4 may be externally fitted to the outer container 3.
Further, as described above, at the pressing position, the pressing protrusion 71 and the engagement piece 46 may be close to each other or may be in contact with each other. However, when they are close to each other, it is preferable to set the gap between the pressing protrusion 71 and the engagement piece 46 to be narrower than the protrusion amount of the engagement protrusion 47 in the radial direction.

  In addition, in the range which does not deviate from the meaning of this invention, it is possible to replace suitably the component in the embodiment mentioned above by the known component, and you may combine the modification mentioned above suitably.

DESCRIPTION OF SYMBOLS 1 ... Double container 3 ... Outer container 4 ... Fixed member 11 ... Inner container 13 ... Shoulder part 19 ... Bottom part of inner container 39 ... Bottom part of outer container 41 ... Engagement member 44 ... Rotating member 46 ... Engagement piece 71 ... Presser Projection 72 ... Elastic pressing piece (urging member)
110: Elastic member (biasing member)
O ... Container shaft

Claims (4)

An inner container for storing the contents;
An outer container having a polygonal shape in cross-sectional view for detachably storing the inner container;
A restriction member that restricts movement of the inner container in the container axial direction between the outer container and the inner container to be fixed to the outer container;
The fixing member is
An engaging member detachably engaged with the outer container;
A rotating member arranged to be rotatable around a container axis of the inner container with respect to the engaging member,
The engagement member is provided with an engagement piece that is elastically deformable in a radial direction orthogonal to the container axial direction and is engaged with the outer container from the radial direction.
The rotating member is provided with a pressing protrusion that protrudes in the radial direction from the opposite side of the outer container toward the engaging member with the engaging member interposed therebetween.
The rotating member includes a pressing position where the pressing protrusion overlaps with the engagement piece in a radial direction and restricts deformation of the engagement piece, and a release position where the deformation restriction of the engagement piece is released. A double container characterized by being configured to be rotatable around the container axis.   The double container according to claim 1, further comprising a biasing member that biases the inner container in the container axial direction and presses the inner container against the outer container or the fixing member. The urging member is provided on the rotating member, abuts in the container axis direction on a shoulder portion of the inner container that protrudes radially outward from a lower end edge of the mouth , and the container shaft The double container according to claim 2, wherein the double container is an elastic pressing piece that urges in a direction in which the rotating member and the inner container are separated from each other. Wherein the biasing member is disposed between the outer bottom and the bottom of the inner container of the container, according to claim 2, wherein the along the axial direction of the container which is an elastic member elastically deformable Double container.

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