JP2023173787A - Replacement container - Google Patents

Abstract

To provide a replacement container allowed to suppress a refill container from co-rotating when opening a top lid.SOLUTION: A replacement container 1 comprises a container body 2, a refill container 3 that can be replaced by rotation relative to the container body 2, and a top lid 4 that is detachable by rotation relative to the container body 2. In a close state of the top lid 4, a seal portion 25 is formed by an annular projection at a contact portion of an upper face of a mouth flange 15 of the refill container 3 with the top lid 4 and, moreover, a lower face of the mouth flange 15 of the refill container 3 and the container body 2 make contact through a high-friction resilient member 5.SELECTED DRAWING: Figure 1

Description

The present invention relates to a replacement container.

Replaceable containers are known that include a container body, a refill container that can be rotated to be replaced with respect to the container body, and a top lid that can be attached to and removed from the container body by rotation (for example, see Patent Document 1).

JP 2021-8277 Publication

In the above-mentioned replacement container, if the refill container rotates when the top lid is opened, there is a risk that the state of attachment of the refill container to the container body may become unstable.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a replacement container that can suppress the rotation of the refill container when the top lid is opened.

One aspect of the present invention is as follows.

[1]
It has a container body, a refill container that can be replaced by rotation with respect to the container body, and a top lid that can be attached to and detached from the container body by rotation,
When the top lid is closed, a seal portion is formed by an annular protrusion at a contact portion between the top flange of the refill container and the top lid, and a bottom surface of the mouth flange of the refill container and the container body are in contact with each other. A replacement container that comes into contact with each other through a high friction elastic member.

[2]
The replacement container according to [1], wherein the seal portion is located directly above the contact portion between the high friction elastic member and the container main body when the top lid is closed.

[3]
The container main body has an outer circumferential upper end portion formed by a cylindrical wall, and an outer circumferential middle portion whose outer circumferential surface is larger in diameter than the outer circumferential upper end portion,
The refill container has a hanging cylinder part that hangs down from an outer peripheral edge of the mouth flange,
The upper lid has a lid top portion and a lid outer peripheral portion that hangs down from the lid top portion,
The outer peripheral upper end portion and the hanging cylinder portion are rotatable via a first threaded portion,
The outer circumferential intermediate portion and the lid outer circumferential portion are rotatable via a second threaded portion,
According to [1] or [2], when the upper lid is closed, the hanging cylinder part and the container main body are restricted from rotating relative to each other via a stopper part that can be ridden over on both sides in the circumferential direction by elastic deformation. Replacement container.

[4]
The upper lid has an outer lid member and an inner lid member that is disposed inside the outer lid member and held by the outer lid member,
The inner lid member is formed by an inner outer peripheral member, an inner inner peripheral member, and an elastic ring,
When the top lid is closed, the upper surface of the inner inner circumferential member and the lower surface of the inner outer circumferential member are in contact with each other via the elastic ring, and the seal portion is in contact with the contact portion between the elastic ring and the inner outer circumferential member. The replacement container according to any one of [1] to [3], located directly below.

According to the present invention, it is possible to provide a replacement container that can suppress rotation of the refill container when the top lid is opened.

FIG. 1 is a partially sectional side view showing a replacement container according to a first embodiment of the present invention. 2 is an enlarged view of part A in FIG. 1. FIG. It is a partially sectional side view which shows the replacement container of 2nd Embodiment of this invention. 4 is an enlarged view of part B in FIG. 3. FIG.

Embodiments of the present invention will be described below by way of example with reference to the drawings.

As shown in FIGS. 1 and 2, in the first embodiment of the present invention, a refill container 1 includes a container body 2 and a refill container 3 that can be replaced by rotation about a central axis O with respect to the container body 2. and an upper lid 4 that can be attached to and detached from the container body 2 by rotation about a central axis O. The refill container 3 has a refill container main body 3a and a high friction elastic member 5. The upper lid 4 has a lid main body 4a and a sheet-like packing 4b. The materials of the container body 2, the refill container body 3a, and the lid body 4a are not particularly limited, and are made of resin, for example. The container body 2, the refill container body 3a, and the lid body 4a are each integrally molded. Note that the container main body 2, the refill container main body 3a, and the lid main body 4a are not limited to this, and may be constructed by assembling a plurality of members.

Note that in this application, the vertical direction refers to the vertical direction when the replacement container 1 is in an upright position (the top lid 4 is located on the upper side), and corresponds to the direction along the central axis O in this embodiment. In this embodiment, the direction along the straight line perpendicular to the central axis O is also referred to as the radial direction, and the direction around the central axis O is also referred to as the circumferential direction.

The container body 2 has a bottom portion 2a and an outer peripheral portion 2b extending upward from the bottom portion 2a. The bottom portion 2a is formed by the bottom wall 6. The outer circumferential portion 2b has an outer circumferential upper end portion 2c, an outer circumferential middle portion 2d, and an outer circumferential lower portion 2e facing downward in this order. The outer circumferential upper end portion 2c is formed by a cylindrical wall 7 centered on the central axis O. The outer circumferential intermediate portion 2d has an outer circumferential surface that is larger in diameter than the outer circumferential upper end portion 2c. Further, the outer circumferential intermediate portion 2d includes an annular intermediate top wall 8 extending radially outward from the lower end of the cylindrical wall 7, and a cylindrical intermediate portion hanging from the outer peripheral edge of the intermediate top wall 8 and centered on the central axis O. It is formed by an outer wall 9 and an intermediate inner wall 10 extending downward from the lower end of the cylindrical wall 7. The lower outer circumferential portion 2e includes an annular lower top wall 11 extending radially outward from the lower end of the intermediate outer wall 9, and a cylindrical shape that hangs down from the outer circumferential edge of the lower top wall 11 and is centered on the central axis O. It is formed by a lower outer wall 12 and a lower inner wall 13 extending downward from the lower end of the intermediate inner wall 10 . The lower end of the lower inner wall 13 is continuous with the outer peripheral edge of the bottom wall 6. Although the lower outer wall 12 has a cylindrical shape, it is not limited to this, and may have a configuration other than a cylindrical shape, such as a rectangular tube shape.

The refill container main body 3a has a content storage section 14, a mouth flange 15, and a hanging cylinder section 16. The content accommodating portion 14 has a concave shape and has a mouth opening 17 at its upper end. Further, the content storage portion 14 is formed by a storage portion bottom wall 14a and a storage portion outer circumferential wall 14b which extends upward from the outer peripheral edge of the storage portion bottom wall 14a and has a cylindrical shape centered on the central axis O. The mouth flange 15 has an annular flange shape extending radially outward from the upper outer end 2c of the content storage portion 14, that is, the upper end of the outer peripheral wall 14b of the storage portion. The hanging cylindrical portion 16 hangs down from the outer peripheral edge of the mouth flange 15 and has a cylindrical shape centered on the central axis O.

The high-friction elastic member 5 is held between the upper end of the inner circumferential surface of the hanging cylinder part 16 and the upper end of the outer circumferential surface of the housing outer circumferential wall 14b, and has an annular shape centered on the central axis O. The outer circumferential upper end portion 2c and the hanging tube portion 16 are rotatable via the first threaded portion 18. In other words, the refill container 3 can be replaced by rotation with respect to the container body 2 via the first threaded portion 18. The first threaded portion 18 is formed, for example, by a continuous or intermittent male threaded portion provided on the outer circumferential upper end portion 2c and a continuous or intermittent female threaded portion provided on the hanging cylinder portion 16. The hanging cylinder part 16 and the container main body 2 are elastically deformed on both sides in the circumferential direction when the refill container 3 has been screwed into the container main body 2 through the first threaded part 18 and the refill container 3 has been completely installed. Rotation is restricted from each other via a stopper portion 19 that can be climbed over. The stopper portion 19 is formed by an uneven shape provided at the lower end of the hanging cylinder portion 16 and an uneven shape provided at the boundary between the outer circumferential surface of the outer circumferential upper end portion 2c and the upper surface of the outer circumferential intermediate portion 2d. Note that the stopper portion 19 is not limited to this, and may be formed by, for example, an uneven shape provided at the lower end of the hanging cylinder portion 16 and an uneven shape provided at the lower end of the outer peripheral surface of the outer circumferential upper end portion 2c, It may be formed by an uneven shape provided on the lower end portion of the cylindrical portion 16 and an uneven shape provided on the upper surface of the outer peripheral intermediate portion 2d. When the refill container 3 is completely installed, the lower surface of the mouth flange 15 of the refill container 3 and the upper surface of the outer peripheral upper end 2c (cylindrical wall 7) of the container body 2 are in contact with each other via the high friction elastic member 5. As a result, vertical wobbling of the refill container 3 with respect to the container body 2 is suppressed.

The contents accommodated in the contents storage section 14 are not particularly limited, and are, for example, cosmetics.

The upper lid 4 has a lid top portion 20 and a lid outer peripheral portion 21 that hangs down from the lid top portion 20. The lid top portion 20 is formed by a top wall 22 of the lid main body 4a and a sheet-like packing 4b arranged along the lower surface of the top wall 22 and held by the lid main body 4a. The sheet-like packing 4b covers the mouth opening 17 when the upper lid 4 is closed. The lid main body 4a has a top wall 22 and a lid outer peripheral portion 21. The lid outer peripheral portion 21 is formed by a lid outer peripheral wall 23 that hangs down from the top wall 22 and has a cylindrical shape centered on the central axis O. The lid outer peripheral part 21 (lid outer peripheral wall 23) and the outer peripheral intermediate part 2d (intermediate outer wall 9) are rotatable via the second screwing part 24. That is, the upper lid 4 can be attached to and detached from the container body 2 by rotation via the second threaded portion 24. The second threaded portion 24 includes, for example, a continuous or intermittent female screw portion provided on the lid outer peripheral portion 21 (lid outer peripheral wall 23) and a continuous or intermittent male screw portion provided on the outer peripheral intermediate portion 2d (intermediate outer wall 9). formed by the The upper lid 4 is removable from the container body 2 in which the refill container 3 has been completely attached.

The direction in which the top cover 4 is rotated relative to the container body 2 in order to close the top cover 4, that is, to attach the top cover 4 to the container body 2, is the direction in which the top cover 4 is rotated relative to the container body 2 in order to attach the refill container 3 to the container body 2. This corresponds to the direction in which the main body 2 is rotated. That is, the top lid 4 and the refill container 3 are each attached to the container body 2 by rotation in one circumferential direction (for example, clockwise) when viewed from above, and are attached to the container body 2 by rotation toward the other side in the circumferential direction when viewed from above. removed from 2.

When the upper lid 4 is closed, a seal portion 25 is formed by an annular projection centered on the central axis O at the contact portion between the upper surface of the mouth flange 15 of the refill container 3 and the lid top portion 20 (sheet-like packing 4b) of the upper lid 4. The lower surface of the mouth flange 15 of the refill container 3 and the upper surface of the outer peripheral upper end 2c (cylindrical wall 7) of the container body 2 are in contact with each other via the high friction elastic member 5. Therefore, when opening the top lid 4, the frictional force between the top lid 4 and the refill container 3 acting through the seal portion 25 is suppressed, and the frictional force between the refill container 3 and the container body 2 is increased by the high frictional elastic member 5. By doing so, it is possible to suppress the refill container 3 from rotating together. As a result, it is possible to prevent the attachment state of the refill container 3 to the container body 2 from becoming unstable. An annular projection forming the seal portion 25 is provided on the upper surface of the mouth flange 15.

The high-friction elastic member 5 generates a higher frictional force than at least one of the lower surface of the mouth flange 15 and the upper surface of the outer circumferential upper end 2c (cylindrical wall 7) of the container body 2. The high-friction elastic member 5 is preferably formed of an elastic material that generates such a high frictional force, and examples of such an elastic material include silicon.

Further, in this embodiment, when the upper lid 4 is closed, the seal portion 25 is located directly above the contact portion between the high friction elastic member 5 and the container body 2 (the upper surface of the outer circumferential upper end portion 2c). Therefore, since the compressive force in the vertical direction can be transmitted favorably to the seal portion 25, the radial width of the annular projection forming the seal portion 25 can be set smaller while ensuring sealing performance. As a result, the frictional force between the top lid 4 and the refill container 3 acting through the seal portion 25 when the top lid 4 is opened can be further suppressed.

Further, in this embodiment, the stopper portion 19 can enhance the co-rotation suppressing effect.

Next, a second embodiment of the present invention will be described.

As shown in FIGS. 3 and 4, the replacement container 1 according to the second embodiment of the present invention has the same structure as the first embodiment except for the top lid 4. As shown in FIGS. In this embodiment, the upper lid 4 includes an outer lid member 4c and an inner lid member 4d arranged inside the outer lid member 4c and held by the outer lid member 4c. The inner lid member 4d is formed by an inner outer peripheral member 26, an inner inner peripheral member 27, and an elastic ring 28. The materials of the outer lid member 4c, the inner outer peripheral member 26, and the inner inner peripheral member 27 are not particularly limited, and are made of resin, for example.

The upper lid 4 has a lid top portion 20 and a lid outer peripheral portion 21 that hangs down from the lid top portion 20. The lid top portion 20 is formed by the outer top wall 29 of the outer lid member 4c, the inner inner peripheral member 27, the elastic ring 28, and the top wall portion 26a of the inner outer peripheral member 26. The inner inner peripheral member 27 covers the mouth opening 17 when the upper lid 4 is closed. The outer lid member 4c has an outer top wall 29 and an outer peripheral wall 30. The inner peripheral member 26 includes an annular top wall part 26a centered on the central axis O, and a cylindrical outer peripheral wall part 26b hanging down from the outer peripheral edge of the top wall part 26a and centered on the central axis O. have The lid outer peripheral portion 21 is formed by the outer peripheral wall 30 of the outer lid member 4c and the outer peripheral wall 26b of the inner peripheral member 26.

The outer circumferential surface of the outer circumferential wall portion 26b of the inner circumferential member 26 is fitted onto the inner circumferential surface of the outer circumferential wall 30 of the outer lid member 4c in a state in which rotation is restricted to one side in the circumferential direction and the other side in the circumferential direction when viewed from above. installed and retained.

The top wall portion 26a of the inner peripheral member 26 is formed by a lower wall portion 31, a stepped wall portion 32, and an upper wall portion 33, each of which has an annular shape centered on the central axis O. The upper wall portion 33 is provided to be stepped upward from the lower wall portion 31, and the outer peripheral edge of the upper wall portion 33 is continuous with the inner peripheral edge of the lower wall portion 31 via the stepped wall portion 32. The inner inner peripheral member 27 is formed by an inner inner peripheral top wall 27a, a fitting cylinder 27b, and a regulating cylinder 27c. The inner inner peripheral top wall 27a has a circular shape centered on the central axis O when viewed from above. The fitting cylinder 27b extends upward from the inner inner peripheral top wall 27a and has a cylindrical shape centered on the central axis O. The outer circumferential surface of the fitting tube 27b engages with the inner circumferential edge of the upper wall portion 33 so that the inner inner circumferential member 27 is held by the inner outer circumferential member 26 so as to be vertically displaceable. The regulating tube 27c extends upward from the inner inner circumferential top wall 27a on the radially outer side than the fitting tube 27b and on the radially inner side than the outer circumferential edge of the inner inner circumferential top wall 27a, and has a cylindrical shape centered on the central axis O. An annular elastic ring 28 centered on the central axis O is provided between the boundary between the outer peripheral edge of the inner top wall 27a and the regulating tube 27c and the boundary between the top wall 33 and the stepped wall 32. Placed and held.

The lid outer peripheral portion 21 and the outer peripheral intermediate portion 2d (intermediate outer wall 9) are rotatable via the second threaded portion 24. That is, the upper lid 4 can be attached to and detached from the container body 2 by rotation via the second threaded portion 24. The second threaded portion 24 is, for example, a continuous or intermittent female screw portion provided on the lid outer circumferential portion 21 (outer circumferential wall portion 26b of the inner outer circumferential member 26) and a continuous female screw portion provided on the outer circumferential intermediate portion 2d (intermediate outer wall 9). or an intermittent external thread. The upper lid 4 is removable from the container body 2 in which the refill container 3 has been completely attached.

The direction in which the top cover 4 is rotated relative to the container body 2 in order to close the top cover 4, that is, to attach the top cover 4 to the container body 2, is the direction in which the top cover 4 is rotated relative to the container body 2 in order to attach the refill container 3 to the container body 2. This corresponds to the direction in which the main body 2 is rotated. That is, the top lid 4 and the refill container 3 are each attached to the container body 2 by rotation in one circumferential direction (for example, clockwise) when viewed from above, and are attached to the container body 2 by rotation toward the other side in the circumferential direction when viewed from above. removed from 2.

When the upper lid 4 is closed, a seal portion 25 is formed by an annular projection centered on the central axis O at the contact portion between the upper surface of the mouth flange 15 of the refill container 3 and the lid top portion 20 (inner inner peripheral member 27) of the upper lid 4. is formed, and the lower surface of the mouth flange 15 of the refill container 3 and the upper surface of the outer peripheral upper end 2c (cylindrical wall 7) of the container main body 2 are in contact with each other via the high frictional elastic member 5. Therefore, when opening the top lid 4, the frictional force between the top lid 4 and the refill container 3 acting through the seal portion 25 is suppressed, and the frictional force between the refill container 3 and the container body 2 is increased by the high frictional elastic member 5. By doing so, it is possible to suppress the refill container 3 from rotating together. As a result, it is possible to prevent the attachment state of the refill container 3 to the container body 2 from becoming unstable. An annular projection forming the seal portion 25 is provided on the lower surface of the inner inner circumferential member 27 .

Further, in this embodiment, when the upper lid 4 is closed, the seal portion 25 is located directly above the contact portion between the high friction elastic member 5 and the container body 2 (the upper surface of the outer circumferential upper end portion 2c). Therefore, the vertical compressive force from the high-friction elastic member 5 can be well transmitted to the seal portion 25, so that the radial width of the annular protrusion forming the seal portion 25 can be made narrower while ensuring sealing performance. Can be set. As a result, the frictional force between the top lid 4 and the refill container 3 acting through the seal portion 25 when the top lid 4 is opened can be further suppressed.

Further, in this embodiment, when the top lid 4 is closed, the upper surface of the inner inner circumferential member 27 and the lower surface of the inner outer circumferential member 26 are in contact with each other via the elastic ring 28, and the seal portion 25 is in contact with the elastic ring 28 and the inner outer circumferential member. 26 (the lower surface of the upper wall portion 33). Therefore, the compressive force in the vertical direction from the elastic ring 28 can be effectively transmitted to the seal portion 25, so that the radial width of the annular projection forming the seal portion 25 can be set to be even narrower. As a result, the frictional force between the top lid 4 and the refill container 3 acting through the seal portion 25 when the top lid 4 is opened can be further suppressed.

Further, in this embodiment, the stopper portion 19 can enhance the co-rotation suppressing effect.

The present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the gist thereof.

Therefore, the replaceable container 1 of the embodiment described above includes a container body 2, a refill container 3 that can be replaced by rotation with respect to the container body 2, and a top lid 4 that can be attached and detached with rotation to the container body 2. When the upper lid 4 is closed, a seal portion 25 is formed by an annular projection at the contact portion between the upper surface of the mouth flange 15 of the refill container 3 and the upper lid 4, and the lower surface of the mouth flange 15 of the refill container 3. This can be changed as long as it is a replacement container 1 in which the container main body 2 and the container body 2 are in contact with each other via the high friction elastic member 5.

For example, the high friction elastic member 5 may be held in the container body 2 instead of the refill container 3. In a state where the upper lid 4 is closed, the seal portion 25 may be configured not to be located directly above the contact portion between the high friction elastic member 5 and the container body 2. It is also possible to adopt a configuration in which the stopper portion 19 is not provided.

1 Replacement container 2 Container body 2a Bottom 2b Outer periphery 2c Upper outer periphery 2d Intermediate outer periphery 2e Lower outer periphery 3 Refill container 3a Refill container main body 4 Upper lid 4a Lid main body 4b Sheet-like packing 4c Outer lid member 4d Inner lid member 5 Height Frictional elastic member 6 Bottom wall 7 Cylindrical wall 8 Intermediate top wall 9 Intermediate outer wall 10 Intermediate inner wall 11 Lower top wall 12 Lower outer wall 13 Lower inner wall 14 Contents storage section 14a Storage section bottom wall 14b Storage section outer peripheral wall 15 Mouth part flange 16 hanging cylinder part 17 mouth opening 18 first threaded part 19 stopper part 20 lid top part 21 lid outer peripheral part 22 top wall 23 lid outer peripheral wall 24 second threaded part 25 seal part 26 inner peripheral member 26a top wall part 26b Outer circumferential wall 27 Inner inner circumferential member 27a Inner inner circumferential top wall 27b Fitting tube 27c Regulation tube 28 Elastic ring 29 Outer top wall 30 Outer circumferential wall 31 Lower wall 32 Step wall 33 Upper wall O Center axis

Claims (4)

It has a container body, a refill container that can be replaced by rotation with respect to the container body, and a top lid that can be attached to and detached from the container body by rotation,
When the top lid is closed, a seal portion is formed by an annular protrusion at a contact portion between the top flange of the refill container and the top lid, and a bottom surface of the mouth flange of the refill container and the container body are in contact with each other. A replacement container that comes into contact with each other through a high friction elastic member. The refill container according to claim 1, wherein the seal portion is located directly above a contact portion between the high friction elastic member and the container main body when the top lid is closed. The container main body has an outer circumferential upper end portion formed by a cylindrical wall, and an outer circumferential middle portion whose outer circumferential surface is larger in diameter than the outer circumferential upper end portion,
The refill container has a hanging cylinder part that hangs down from an outer peripheral edge of the mouth flange,
The upper lid has a lid top portion and a lid outer peripheral portion that hangs down from the lid top portion,
The outer peripheral upper end portion and the hanging cylinder portion are rotatable via a first threaded portion,
The outer circumferential intermediate portion and the lid outer circumferential portion are rotatable via a second threaded portion,
The replacement according to claim 1 or 2, wherein when the upper lid is closed, the hanging cylinder part and the container main body are restricted from rotating relative to each other via a stopper part that can be ridden over on both sides in the circumferential direction by elastic deformation. container. The upper lid has an outer lid member and an inner lid member that is disposed inside the outer lid member and held by the outer lid member,
The inner lid member is formed by an inner outer peripheral member, an inner inner peripheral member, and an elastic ring,
When the top lid is closed, the upper surface of the inner inner circumferential member and the lower surface of the inner outer circumferential member are in contact with each other via the elastic ring, and the seal portion is in contact with the contact portion between the elastic ring and the inner outer circumferential member. The replacement container according to claim 1 or 2, located directly below.

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