JP2021123355A - Double container - Google Patents

Abstract

To provide a double container capable of facilitating replacing of an inner container and increasing the freedom of an appearance design of the container.SOLUTION: A double container 1 comprises an inner container 10, an outer container 20, and a rotational member 30. A plurality of engaging projections 17 are provided at different peripheral positions on an outer peripheral surface of the inner container 10. A plurality of inclined guide surfaces 41, 42 are formed on an inner peripheral wall 31 of the rotational member 30. A plurality of longitudinal ribs 27 are provided so as to suppress rotation of the inner container 10 with respect to the outer container 20 through engagement with the engaging projections 17 on an inner peripheral surface of the outer container 20. Following a rotation operation of the rotational member 30 to one side with respect to the outer container 20, the engaging projections 17 are engaged with the longitudinal ribs 27 to move along the inclined guide surfaces 41, 42. At least one engaging projection 17 rides on an upper surface 30a of the rotational member 30 to support the inner container 10 on the rotational member 30 in a raised state.SELECTED DRAWING: Figure 1

Description

The present invention relates to a double container provided with an inner container and an outer container for refilling, and in particular, aims to facilitate replacement of the inner container and improve the degree of freedom in designing the appearance of the container. ..

Conventionally, as a container for containing contents such as cream, a double container including an inner container and an outer container for refilling the contents is known. In such a double container, it is necessary to remove the inner container from the outer container when replacing the inner container. As a procedure for removing the inner container, for example, the inner container is picked up and the inner container is pushed up to the bottom of the outer container body. It is conceivable to provide a through hole for this purpose, or to open it with a coin or the like. Further, for example, in Patent Document 1, a pressing portion that can be rotated by a pressing operation is provided in the inner container, and a notch portion that exposes the pressing portion is provided in the outer container, and the pressing portion can be locked. A stop is provided.

JP-A-2010-195484

However, when the procedure for removing the inner container as described above is adopted, a relatively large force is required to remove the inner container, or a through hole or a notch is provided in order to design the appearance of the container. There is a problem that it causes restrictions. It is also desired that the replacement procedure be easy to understand and especially easy for the elderly to use.

Therefore, it is an object of the present invention to provide a double container capable of facilitating the replacement of the inner container and improving the degree of freedom in designing the appearance of the container.

The present invention has been made to solve the above problems, and the double container of the present invention has a bottomed tubular inner container for accommodating the contents and a bottomed cylinder for exchanging the inner container. It is provided with an outer container having a shape and an annular rotating member rotatably attached to the upper part of the outer container around an axis.
A plurality of engaging protrusions are provided at different circumferential positions on the outer peripheral surface of the inner container.
A plurality of inclined guide surfaces corresponding to the plurality of engaging protrusions are formed on the inner peripheral wall of the rotating member.
The inner peripheral surface of the outer container is provided with a plurality of vertical ribs that engage with the plurality of engaging protrusions and suppress the rotation of the inner container with respect to the outer container.
With the rotation operation of the rotating member with respect to the outer container to one side, the engaging protrusions move along the inclined guide surface while engaging with the vertical ribs, and at least one of the engaging protrusions is engaged. The inner container is configured to be supported by the rotating member in a raised state by riding on the upper surface of the rotating member.

In the double container of the present invention, the plurality of inclined guide surfaces have a first inclined guide surface and a second inclined guide surface.
It is preferable that at least a part of the inclination angle of the second inclined guide surface is different from the inclination angle of the first inclined guide surface.

Further, in the double container of the present invention, it is preferable that the inclination angle of the upper part of the second inclined guide surface is smaller than the inclination angle of the lower part of the second inclined guide surface.

Further, in the double container of the present invention, the inclination angle of the first inclined guide surface is constant throughout.
It is preferable that the inclination angle of the lower part of the second inclined guide surface is the same as the inclination angle of the first inclined guide surface.

Further, in the double container of the present invention, at least one of the engaging protrusions has a downward hook portion.
It is preferable that the hook portion is configured to engage with the support recess provided on the upper surface of the rotating member when the engaging protrusion rides on the upper surface of the rotating member.

Further, in the double container of the present invention, it is preferable that the plurality of engaging protrusions all have the same shape and are evenly arranged in the circumferential direction of the inner container.

According to the present invention, when the inner container is replaced, the inner container moves upward only by rotating the rotating member provided on the outer container, so that the inner container can be easily removed with a relatively small force. can. Further, in order to remove the inner container, it is not necessary to provide a through hole or a notch for pressing the inner container in the outer container.

Therefore, according to the present invention, it is possible to provide a double container capable of facilitating the replacement of the inner container and improving the degree of freedom in the appearance design of the container.

It is a perspective view which shows the inner container, the outer container, and the rotating member of the double container which concerns on one Embodiment of this invention in the disassembled state. It is a partial cross-sectional side view of the double container shown in FIG. 1 in a state where the rotating member and the inner container are attached to the outer container, and shows the relationship between the engaging protrusion, the vertical rib, and the inclined guide surface on one side. It is a partial cross-sectional side view of the double container shown in FIG. 1 in a state where the rotating member and the inner container are attached to the outer container, and shows the relationship between the engaging protrusion, the vertical rib, and the inclined guide surface on the other side. It is a partial cross-sectional side view showing the process of moving the inner container upward by the rotation operation of the rotating member from the state shown in FIG. 2, and shows the relationship between the engaging protrusion on one side, the vertical rib, and the inclined guide surface. show. It is a partial cross-sectional side view which shows the relationship between the engaging protrusion, the vertical rib, and the inclined guide surface on the other side in the double container in the state shown in FIG. It is a partial cross-sectional side view showing a state in which the rotating member is further rotated from the state shown in FIG. 4 and the inner container is supported by the rotating member. Show the relationship between the faces. FIG. 6 is a partial cross-sectional side view showing the relationship between the engaging projection, the vertical rib, and the inclined guide surface on the other side of the double container in the state shown in FIG. It is a partial cross-sectional side view which shows the process of moving an inner container upward by the rotation operation of a rotating member in the double container shown for comparison. FIG. 5 is a partial cross-sectional side view showing a state in which the rotating member is further rotated in the double container shown in FIG. It is a perspective view which shows the inner container, the outer container, and the rotating member of the double container which concerns on another Embodiment of this invention in the disassembled state. It is a partial cross-sectional side view of the double container shown in FIG. 10 in a state where the rotating member and the inner container are attached to the outer container, and shows the relationship between the engaging protrusion, the vertical rib, and the inclined guide surface. It is a partial cross-sectional side view which shows the process of moving an inner container upward by the rotation operation of a rotating member from the state shown in FIG. FIG. 2 is a partial cross-sectional side view showing a state in which the rotating member is further rotated from the state shown in FIG. 12 and the inner container is supported by the rotating member. FIG. 3 is a partial cross-sectional side view showing a state in which the rotating member is further rotated from the state shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present specification, the vertical direction means the direction along the axis O which is the central axis of the inner container 10 and the outer container 20, and the upper direction means the opening 12 of the content accommodating portion 11 of the inner container 10. The position side (for example, the upper side in FIG. 2) and the lower side mean the side where the bottom wall portion 14 of the content accommodating portion 11 is located (for example, the lower side in FIG. 2).

As shown in FIGS. 1 and 2, the double container 1 according to the embodiment of the present invention includes an inner container 10 for refilling, an outer container 20 for exchanging the inner container 10, and a rotating member 30. It has. Although not shown, the double container 1 can be detachably attached to the mouth 25 of the outer container 20 and can be provided with a lid covering the upper end opening 22 (opening 12 of the inner container 10). The lid may include, for example, a cylindrical outer wall portion and a top wall portion that closes the upper end portion of the outer wall portion, and may have a female screw screwed with a male screw 25a on the inner peripheral surface of the outer wall portion. However, it is not limited to this.

The inner container 10 includes a bottomed tubular content accommodating portion 11 centered on the axis O. That is, the content accommodating portion 11 has an opening 12 formed in the upper portion thereof, and also has a peripheral wall portion 13 and a bottom wall portion 14. An annular outward convex portion 15 is provided on the upper part of the outer peripheral surface of the peripheral wall portion 13. Further, an annular flange portion 16 extending radially outward is provided at the upper end portion of the peripheral wall portion 13.

Engagement protrusions 17 are provided on the outer peripheral surface of the peripheral wall portion 13. The engaging projection 17 of this example has a columnar shape, but is not limited to this, and may have another shape such as a polygonal columnar shape. In this example, two engaging projections 17 are provided on the outer peripheral surface of the peripheral wall portion 13 at positions displaced by 180 ° in the circumferential direction around the axis O. Further, in this example, the two engaging protrusions 17 are arranged at the same vertical position of the peripheral wall portion 13. In this example, the two engaging protrusions 17 have a common shape, but a plurality of engaging protrusions 17 having different shapes may be provided. Further, the engaging projections 17 may be provided at three or more locations in the circumferential direction. For example, in order to maintain the quality of the contents in an unused state, the inner container 10 may close the opening 12 of the contents accommodating portion 11 with a cap, a film, or the like. The inner container 10 is configured to be rotatable with respect to the outer container 20 within a predetermined range. In the state shown in FIG. 2, the engaging protrusion 17 penetrates the inner peripheral wall 31 of the rotating member 30 and is arranged so that the tip end portion thereof is located in the inner peripheral recess 23a of the outer container 20. The engaging protrusions 17 are arranged in the notches 38 and 39 provided in the inner peripheral wall 31 of the rotating member 30.

As shown in FIGS. 2 to 7, the outer container 20 includes a bottomed tubular inner container storage portion 21 centered on an axis O capable of storing the inner container 10. That is, the inner container storage portion 21 has an upper end opening 22 formed at the upper portion thereof, and also has a side wall portion 23 and a bottom wall portion 24. A mouth portion 25 having a male screw 25a on the outer peripheral surface is provided on the upper portion of the side wall portion 23.

The mouth portion 25 is formed so that its outer diameter is smaller than that of the side wall portion 23 below the mouth portion 25 and its inner diameter is larger. An upper end cylinder portion 26 having a smaller outer diameter is provided at the upper end portion of the mouth portion 25, and an annular outward convex portion 26a is provided on the outer peripheral surface of the upper end cylinder portion 26.

A vertical rib 27 capable of suppressing the rotation of the inner container 10 with respect to the outer container 20 by engaging with the engaging projection 17 is provided on the inner peripheral surface of the side wall portion 23. The vertical rib 27 is a rod-shaped protrusion that extends linearly in parallel with the axis O, and is provided in an annular inner peripheral recess 23a provided above the inner peripheral surface of the side wall portion 23. An inclined surface 28 extending diagonally with respect to the axis O (a plane orthogonal to the axis O) is provided at the upper end of one side surface 27a of the vertical rib 27. The inclination direction of the inclined surface 28 is the same as that of the inclined guide surfaces 41 and 42 described later. Further, the other side surface 27b of the vertical rib 27 extends linearly in parallel with the axis O. The side surface 27b of the vertical rib 27 extends from the lower end to the upper end (upper end of the side wall portion 23) of the inner peripheral recess 23a. In this example, two vertical ribs 27 protruding inward in the radial direction from the inner peripheral surface of the side wall portion 23 (inner peripheral surface of the inner peripheral recess 23a) are arranged at intervals in the circumferential direction. More specifically, the two vertical ribs 27 are arranged at positions offset by 180 ° around the axis O. The vertical ribs 27 may be provided at three or more locations in the circumferential direction.

The rotating member 30 is attached to the upper end portion of the side wall portion 23 of the outer container 20. Further, the rotating member 30 is rotatably held around the axis O with respect to the inner container 10 and the outer container 20 within at least a predetermined range. Further, the rotating member 30 is configured so as not to move up and down with respect to the outer container 20.

The rotating member 30 is formed in an annular shape (ring shape). Specifically, the rotating member 30 includes a cylindrical inner peripheral wall 31, a cylindrical outer peripheral wall 33 located on the radial outer side (outer peripheral side) of the inner peripheral wall 31, and upper ends of the inner peripheral wall 31 and the outer peripheral wall 33. It has an annular flange portion 32 that connects the two to each other. The inner peripheral wall 31 is arranged radially inside (inner circumference side) of the mouth portion 25 and the upper end tubular portion 26, that is, radially inside the vertical rib 27 and the inner peripheral recess 23a. Further, the inner peripheral wall 31 is arranged on the outer side in the radial direction of the peripheral wall portion 13 of the inner container 10. The outer peripheral wall 33 is arranged on the outer side in the radial direction of the upper end tubular portion 26. The flange portion 32 is arranged along the upper surface of the upper end tubular portion 26.

An inward concave portion 35 that fits into the outward convex portion 15 of the inner container 10 is provided on the upper portion of the inner peripheral surface of the inner peripheral wall 31. This makes it difficult for the inner container 10 to move upward with respect to the rotating member 30, so that it is possible to prevent the inner container 10 from unintentionally falling off.

Further, an inward convex portion 36 that fits into the outward convex portion 26a is provided on the inner peripheral surface of the outer peripheral wall 33. As a result, it is possible to prevent the rotating member 30 from coming out upward from the upper end cylinder portion 26 of the outer container 20.

The inner peripheral wall 31 is provided with an engaged portion corresponding to the engaging projection 17 of the inner container 10. In this example, the first and second engaged portions corresponding to the two engaging projections 17 are provided at positions in the circumferential direction deviated by 180 ° with respect to the axis O.

As shown in FIGS. 2, 4 and 6, the inner peripheral wall 31 is provided with a first inclined guide surface 41 and a locking recess 43 forming a first engaged portion. The first inclined guide surface 41 and the locking recess 43 are formed by a notch 38 penetrating the inner peripheral wall 31 in the thickness direction (diameter direction of the inner peripheral wall 31).

The first inclined guide surface 41 extends diagonally with respect to a plane perpendicular to the axis O. Further, the inclination angle θ1 of the first inclination guide surface 41 is constant throughout. That is, the first inclined guide surface 41 extends in a straight line along the extending direction throughout. The "tilt angle" of each of the tilt guide surfaces 41 and 42 means an angle with respect to a plane perpendicular to the axis O.

As shown in FIGS. 3, 5 and 7, the inner peripheral wall 31 is provided with a second inclined guide surface 42 and a locking recess 44 forming a second engaged portion. The second inclined guide surface 42 and the locking recess 44 are formed by a notch 39 penetrating the inner peripheral wall 31 in the thickness direction.

The second inclined guide surface 42 extends diagonally with respect to the plane perpendicular to the axis O, and the inclination angle thereof differs between the lower portion 42a and the upper portion 42b. That is, the inclination angle θ3 of the upper portion 42b of the second inclined guide surface 42 is smaller than the inclination angle θ2 of the lower portion 42a of the second inclined guide surface 42. In this example, the inclination angle θ2 of the lower portion 42a of the second inclination guide surface 42 is the same as the inclination angle θ1 of the first inclination guide surface 41, but the present invention is not limited to this. For example, the inclination angle θ2 of the lower portion 42a of the second inclined guide surface 42 may be different from the inclination angle θ1 of the first inclined guide surface 41. Further, the inclined guide surfaces 41 and 42 are not limited to the illustrated examples, and may be partially or wholly curved, for example.

As shown in FIGS. 2, 4 and 6, the locking recess 43 is arranged to face the first inclined guide surface 41. When the engaging protrusion 17 of the inner container 10 is locked in the locking recess 43, the upward movement of the inner container 10 with respect to the rotating member 30 is suppressed. As a result, the upward movement of the inner container 10 with respect to the outer container 20 is suppressed (because the rotating member 30 is suppressed from the upward movement with respect to the outer container 20). Further, by locking the engaging protrusion 17 of the inner container 10 to the locking recess 43, the rotation of the inner container 10 with respect to the rotating member 30 to one side (the engaging protrusion 17 is from the first inclined guide surface 41). Rotation in the direction of separation) is suppressed.

As shown in FIGS. 3, 5 and 7, the locking recess 44 is arranged to face the second inclined guide surface 42. The function of the locking recess 44 is the same as that of the locking recess 43. In this example, one engaging protrusion 17 of the inner container 10 is locked in the locking recess 43, and at the same time, the other engaging protrusion 17 is locked in the locking recess 44. With such a configuration, it is possible to more reliably suppress the unintended withdrawal of the inner container 10. Further, when the rotating member 30 is rotated to take out the inner container 10, one engaging protrusion 17 comes out of the locking recess 43, and at the same time, the other engaging protrusion 17 comes out of the locking recess 44. It is configured in. In this example, two locking recesses 43 and 44 are provided, but only one of them may be provided. Further, the locking recesses 43 and 44 are not indispensable, and for example, a wall surface parallel to the axis O extending above the locking recesses 43 and 44 of this example may extend to the lower end of the inner peripheral wall 31.

On the lower surface of the flange portion 32, a sliding protrusion 32a that slides on the upper surface 26b of the upper end cylinder portion 26 when the rotating member 30 is rotated is provided. Further, the outer peripheral surface of the outer peripheral wall 33 is formed so as to be polygonal (regular 24 square in this example) in a plan view. As a result, as compared with the case where the outer peripheral surface has a simple cylindrical shape, it is easier to grip the rotating member 30 when rotating it, and it is less slippery. The shape of the outer peripheral surface of the outer peripheral wall 33 is not particularly limited, but for the above reasons, it is preferable to have a polygonal shape in a plan view.

The method of exchanging the inner container 10 in the double container 1 of the present embodiment will be described below. First, when the rotating member 30 is rotated to one side around the axis O with respect to the outer container 20 from the state shown in FIGS. 1 and 2 (mounted state), the two engaging protrusions 17 are respectively vertical ribs 27. The rotation of the inner container 10 with respect to the outer container 20 is suppressed by engaging with the side surface 27b of the above. Then, the rotation of the rotating member 30 with respect to the inner container 10 causes the two engaging protrusions 17 to come out of the locking recesses 43 and 44, respectively, so that the inner container 10 can be moved upward.

When the rotating member 30 is further rotated, as shown in FIG. 4, one engaging projection 17 starts moving along the first inclined guide surface 41, and as shown in FIG. 5, the other engaging projection 17 starts to move. The protrusion 17 starts moving along the lower portion 42a of the second inclined guide surface 42. As a result, the inner container 10 gradually moves upward with respect to the rotating member 30 and the outer container 20. By raising the inner container 10 with respect to the rotating member 30, the fitting of the outward convex portion 15 and the inward concave portion 35 is released, so that the inner container 10 can easily move upward.

Then, when the rotating member 30 is further rotated, one engaging projection 17 continues to move upward along the first inclined guide surface 41 at a constant rate, and at the same time, the other engaging projection 17 is the first. 2 It moves upward relatively gently along the upper portion 42b of the inclined guide surface 42.

Then, when the rotating member 30 is further rotated, as shown in FIG. 6, one engaging projection 17 exceeds the upper end of the first inclined guide surface 41 and extends over the upper end 30a (flange portion 32) of the rotating member 30. It rides on the upper surface of the) and is supported. As shown in FIG. 7, the other engaging projection 17 moves along the upper portion 42b of the second inclined guide surface 42 until one engaging projection 17 rides on the upper surface 30a of the rotating member 30. The state of being engaged with the side surface 27b of the vertical rib 27 is maintained, and the rotation of the inner container 10 with respect to the outer container 20 is suppressed. In this example, one of the engaging protrusions 17 is configured to ride on the upper surface 30a of the rotating member 30, but the present invention is not limited to this, and at least a part of the engaging protrusions 17 rides on the upper surface 30a and is supported. It suffices if it is done.

Here, for example, when the two inclined guide surfaces have the same shape, even if the inner container 10 rises until the engaging projection 17 reaches the upper end of the side surface 27b of the vertical rib 27, the inclined guide surfaces 41 and 42 are used. As a result of the engaging protrusions 17 not being able to get over (see FIG. 8) and all the engaging protrusions 17 being disengaged from the vertical ribs 27 at the same time, the engaging protrusions 17 move downward along the inclined guide surfaces 41 and 42. However, there is a risk that the inner container 10 will be lowered (see FIG. 9).

On the other hand, in the present embodiment, the inclination angle θ3 of the upper portion 42b of the second inclination guide surface 42 is smaller than the inclination angle θ1 of the first inclination guide surface 41, that is, the inclination is made gentle so that the first inclination can be achieved. Even after the engagement between the engaging protrusion 17 on the guide surface 41 side and the vertical rib 27 is released, the engaging protrusion 17 on the second inclined guide surface 42 side is engaged with the vertical rib 27. Then, in the present embodiment, the engagement projection 17 on the first inclined guide surface 41 side rides on the upper surface 30a of the rotating member 30, and the inner container 10 is supported by the rotating member 30 in a raised state. The engaging projection 17 on the inclined guide surface 42 side engages with the vertical rib 27, and continues to suppress the rotation of the inner container 10 with respect to the outer container 20. As described above, in the present embodiment, the engaging protrusion 17 moves downward by ensuring that the engaging protrusion 17 on the first inclined guide surface 41 side rides on the upper surface 30a of the rotating member 30. Can be suppressed. As a result, in the present embodiment, the state in which the inner container 10 is raised can be stably maintained. After raising the inner container 10 in this way, the inner container 10 can be pulled upward and taken out from the outer container 20. In this example, only the engaging projection 17 on the first inclined guide surface 41 side is in a state of riding on the upper surface 30a of the rotating member 30, and in that state, the inner container 10 is tilted with respect to the outer container 20. ..

Then, when attaching the new inner container 10 to the outer container 20, the inner container 10 is attached to the outer container 20 simply by aligning the two engaging protrusions 17 with the positions of the notches 38 and 39 and pushing them downward. Can be done. As the inner container 10 is pushed in, the two engaging protrusions 17 of the inner container 10 engage with the first inclined guide surface 41 and the second inclined guide surface 42 of the rotating member 30, respectively, and the inner container 10 is removed. The rotating member 30 rotates in the opposite direction to the case. The replacement of the inner container 10 is completed by pushing the inner container 10 until the engaging protrusions 17 are locked in the states shown in FIGS. 2 and 3, that is, the locking recesses 43 and 44. When the inner container 10 is attached to the outer container 20, the rotating member 30 may be rotated so that the engaging protrusions 17 are locked in the locking recesses 43 and 44. In this example, since the inclined surface 28 is provided at the upper end of the vertical rib 27, even if the engaging protrusion 17 comes into contact with the vertical rib 27 when the inner container 10 is attached to the outer container 20. The inner container 10 can be smoothly pushed in by the engaging projection 17 sliding on the inclined surface 28.

In this example, when the inner container 10 is attached to the outer container 20, the outward convex portion 15 and the inward concave portion 35 can be fitted to prevent the inner container 10 from coming out. Further, as a method of attaching the new inner container 10, the inner container 10 may be moved downward by the rotation operation of the rotating member 30 without pushing the inner container 10. That is, with the new inner container 10 placed in the inner container storage portion 21, the rotating member 30 is rotated to the other side with respect to the outer container 20, so that the two engaging protrusions 17 are tilted guide surfaces, respectively. It is also possible to slide the inner container 10 downward along 41 and 42 to insert the inner container 10 into the state shown in FIGS.

As described above, the double container 1 according to the present embodiment includes a bottomed tubular inner container 10 for accommodating the contents and a bottomed tubular outer container 20 for exchanging the inner container 10. An annular rotating member 30 rotatably attached around the axis is provided on the upper portion of the outer container 20, and a plurality of engaging protrusions 17 are provided at different circumferential positions on the outer peripheral surface of the inner container 10. The inner peripheral wall 31 of the rotating member 30 is formed with a plurality of inclined guide surfaces 41 and 42 corresponding to the plurality of engaging protrusions 17, and the inner peripheral surface of the outer container 20 is provided with a plurality of engagements. A plurality of vertical ribs 27 that engage with the joint protrusions 17 to suppress the rotation of the inner container 10 with respect to the outer container 20 are provided, and can be used to rotate the rotating member 30 with respect to the outer container 20 to one side. As a result, the engaging protrusion 17 moves along the inclined guide surfaces 41 and 42 while engaging with the vertical rib 27, and at least one engaging protrusion 17 rides on the upper surface 30a of the rotating member 30, whereby the inner container 10 Is configured to be supported by the rotating member 30 in a raised state. With such a configuration, the inner container 10 can be moved upward and the state can be maintained only by rotating the rotating member 30 to one side. Therefore, when the inner container 10 is replaced, the inner container 10 can be easily removed with a relatively small force. Further, after removing the used inner container 10, the inner container 10 can be attached only by pushing the new inner container 10 into the inner container storage portion 21 of the outer container 20 or rotating the rotating member 30. To complete, a new inner container 10 can be easily attached. As described above, according to the present embodiment, the inner container 10 can be easily replaced when the contents are used up.

Further, in order to remove the inner container 10, it is not necessary to provide a through hole or a notch for pressing the inner container 10 in, for example, the bottom wall portion 24 of the outer container 20. Therefore, according to the present embodiment, it is possible to facilitate the replacement of the inner container 10 and improve the degree of freedom in designing the appearance of the container.

Further, in the double container 1 according to the present embodiment, the plurality of inclined guide surfaces 41 and 42 have a first inclined guide surface 41 and a second inclined guide surface 42, and at least one of the second inclined guide surfaces 42. The inclination angle θ3 of the portion (upper part 42b) is different from the inclination angle θ1 of the first inclination guide surface 41. With such a configuration, the rate of rise of the engaging projection 17 moving along the first inclined guide surface 41 and the engaging projection 17 moving along the second inclined guide surface 42 can be changed. Therefore, one of the engaging protrusions 17 can be preferentially mounted on the upper surface 30a of the rotating member 30. Specifically, in this example, the inclination angle θ3 of the upper portion 42b of the second inclination guide surface 42 is made smaller than the inclination angle θ1 of the first inclination guide surface 41. As a result, until the engaging projection 17 on the first inclined guide surface 41 side rides on the upper surface 30a of the rotating member 30 and is supported, the engaging projection 17 on the second inclined guide surface 42 side is surely formed on the vertical rib 27. By engaging, the rotation of the inner container 10 can be suppressed. As a result, the state in which the inner container 10 is raised can be maintained more reliably. In this example, the inclination angle θ3 of the upper portion 42b of the second inclined guide surface 42 may be larger than the inclined angle θ1 of the first inclined guide surface 41, and in that case, the engagement on the second inclined guide surface 42 side. The engaging protrusion 17 on the first inclined guide surface 41 side engages with the vertical rib 27 until the joint protrusion 17 rides on the upper surface 30a of the rotating member 30 and is supported.

Further, in the double container 1 according to the present embodiment, the inclination angle θ1 of the first inclined guide surface 41 is constant throughout, and the inclined angle θ2 of the lower portion 42a of the second inclined guide surface 42 is the first inclined guide surface. It is the same as the inclination angle θ1 of 41. With such a configuration, while the engaging protrusions 17 are moving along the lower portion 42a of the second inclined guide surface 42, the two engaging protrusions 17 are raised at the same rate, so that the rotating member The rotation operation of 30 can be performed with a smaller force. As a result, the work of removing the inner container 10 becomes easier.

Further, in the double container 1 according to the present embodiment, the plurality of engaging protrusions 17 all have the same shape and are evenly arranged in the circumferential direction of the inner container 10. With such a configuration, when the inner container 10 is attached to the outer container 20, it is not necessary to align the positions of the plurality of engaging protrusions 17 with the positions of the specific inclined guide surfaces 41 and 42. That is, since the alignment when the inner container 10 is attached to the outer container 20 becomes easy, the inner container 10 can be replaced more easily.

Hereinafter, other embodiments of the present invention will be described. The parts having the same basic functions as those of the above-described embodiment are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

In the double container 2 shown in FIGS. 10 to 14, a support recess 45 is provided on the upper surface 30a of the rotating member 30. In this example, two support recesses 45 corresponding to a plurality of (two in this example) inclined guide surfaces 41 and 42 are formed on the upper surface 30a of the rotating member 30 close to the upper ends of the inclined guide surfaces 41 and 42, respectively. It is provided. In this embodiment, at least one support recess 45 may be provided. Further, in this example, the two inclined guide surfaces 41 and 42 have the same shape and are arranged evenly in the circumferential direction of the inner peripheral wall 31, but the present invention is not limited to this, and for example, as in the previous embodiment. A part of any of the inclined guide surfaces 41 and 42 may have different inclined angles. In this example, the two inclined guide surfaces 41 and 42 have the same shape as the first inclined guide surface 41 of the previous embodiment, so that the inclined angle is constant throughout.

In the present embodiment, the engaging protrusion 17 has a downward hook portion 17a that can be engaged with the support recess 45. The engaging protrusion 17 of this example is composed of a hook portion 17a and a main body portion 17b extending diagonally downward from the hook portion 17a. The hook portion 17a is configured to engage with the support recess 45 of the rotating member 30 when the engaging protrusion 17 rides on the upper surface 30a of the rotating member 30. The hook portion 17a of this example projects downward and is provided above the engaging protrusion 17. In this example, the two engaging protrusions 17 have the same shape having the hook portion 17a, and the two engaging protrusions 17 are evenly arranged in the circumferential direction of the inner container 10, but the present invention is not limited to this, and at least one. If one of the engaging protrusions 17 has the hook portion 17a, the shape, number, and position of the engaging protrusions 17 can be appropriately changed.

In the double container 2, when the inner container 10 is removed, when the rotating member 30 is rotated to one side around the axis O with respect to the outer container 20 from the state shown in FIG. 11, the two are engaged. The main body 17b of the protrusion 17 engages with the side surface 27b of the vertical rib 27, respectively, and the rotation of the inner container 10 with respect to the outer container 20 is suppressed. Then, the rotation of the rotating member 30 with respect to the inner container 10 causes the two engaging protrusions 17 to come out of the locking recesses 43 and 44, respectively, so that the inner container 10 can be moved upward.

When the rotating member 30 is further rotated, as shown in FIG. 12, the two engaging projections 17 start moving along the inclined guide surfaces 41 and 42, respectively, and the inner container 10 is the rotating member 30 and It gradually moves upward with respect to the outer container 20. At this time, in this example, the hook portion 17a slides on the inclined guide surfaces 41 and 42.

Then, when the rotating member 30 is further rotated, as shown in FIG. 13, the two engaging protrusions 17 continue to move upward along the inclined guide surfaces 41 and 42 at a constant rate, and the engaging protrusions 17 continue to move upward. The hook portion 17a of the 17 rides on the upper surface 30a of the rotating member 30 and engages with the support recess 45. When the engaging protrusion 17 moves along the inclined guide surfaces 41 and 42, the main body portion 17b is engaged with the vertical rib 27 until the hook portion 17a engages with the support recess 45.

Further, when the rotating member 30 is further rotated after the hook portion 17a is engaged with the support recess 45, the engagement of the engaging projection 17 with the vertical rib 27 is released, as shown in FIG. Since the hook portion 17a is maintained in a state of being engaged with the support recess 45, the inner container 10 is maintained in a raised state with respect to the outer container 20. In a state where the hook portion 17a is engaged with the support recess 45, the main body portion 17b of this example is arranged along the upper ends of the inclined guide surfaces 41 and 42.

As described above, in the double container 2 according to the present embodiment, when at least one engaging protrusion 17 has a downward hook portion 17a and the engaging protrusion 17 rides on the upper surface 30a of the rotating member 30. The hook portion 17a is configured to engage with the support recess 45 provided on the upper surface 30a of the rotating member 30. With such a configuration, it is possible to more stably hold the state in which the inner container 10 is raised with respect to the outer container 20. Therefore, the inner container 10 can be replaced more easily.

Although described above based on the illustrated examples, the present invention is not limited to the above-described embodiment, and can be appropriately modified within the scope of the claims. For example, in the above embodiment, the same number (two) of the engaging protrusions 17, the vertical ribs 27, and the inclined guide surfaces 41, 42 are provided, but the present invention is not limited to this, and for example, the vertical ribs 27 and / or the inclined guide surfaces are provided. The number of guide surfaces 41 and 42 may be larger than the number of engaging protrusions 17.

1, 2: Double container 10: Inner container 11: Contents accommodating part 12: Opening 13: Peripheral wall part 14: Bottom wall part 15: Outward convex part 16: Flange part 17: Engagement protrusion 17a: Hook part 17b : Main body 20: Outer container 21: Inner container storage 22: Upper end opening 23: Side wall 23a: Inner peripheral recess 24: Bottom wall 25: Mouth 25a: Male screw 26: Upper end cylinder 26a: Outward convex 26b : Upper surface of upper end cylinder 27: Vertical rib (rotation suppression rib)
27a: One side surface 27b: The other side surface (guide surface)
28: Inclined surface 30: Rotating member 31: Inner peripheral wall 32: Flange portion 32a: Sliding protrusion 33: Outer wall 35: Inward concave portion 36: Inward convex portion 38, 39: Notch 41: First inclined guide Surface 42: Second inclined guide surface 42a: Lower part of second inclined guide surface 42b: Upper part of second inclined guide surface 43, 44: Locking recess 45: Supporting recess θ1: Angle of first inclined guide surface θ2: Second Angle of the lower part of the inclined guide surface θ3: Angle of the upper part of the second inclined guide surface O: Axis (center axis)

Claims (6)

A bottomed tubular inner container for accommodating the contents, a bottomed tubular outer container for exchanging the inner container, and an annular ring rotatably attached to the upper part of the outer container around the axis. Equipped with a rotating member
A plurality of engaging protrusions are provided at different circumferential positions on the outer peripheral surface of the inner container.
A plurality of inclined guide surfaces corresponding to the plurality of engaging protrusions are formed on the inner peripheral wall of the rotating member.
The inner peripheral surface of the outer container is provided with a plurality of vertical ribs that engage with the plurality of engaging protrusions and suppress the rotation of the inner container with respect to the outer container.
With the rotation operation of the rotating member with respect to the outer container to one side, the engaging protrusion moves along the inclined guide surface while engaging with the vertical rib, and at least one of the engaging protrusions is engaged. A double container configured to be supported by the rotating member in a raised state by riding on the upper surface of the rotating member. The plurality of inclined guide surfaces have a first inclined guide surface and a second inclined guide surface.
The double container according to claim 1, wherein at least a part of the tilt angle of the second tilt guide surface is different from the tilt angle of the first tilt guide surface. The double container according to claim 2, wherein the inclination angle of the upper part of the second inclined guide surface is smaller than the inclination angle of the lower part of the second inclined guide surface. The inclination angle of the first inclined guide surface is constant throughout.
The double container according to claim 3, wherein the inclination angle of the lower part of the second inclined guide surface is the same as the inclination angle of the first inclined guide surface. The at least one engaging protrusion has a downward hook portion and has a downward hook portion.
The first aspect of the present invention, wherein the hook portion is configured to engage with a support recess provided on the upper surface of the rotating member when the engaging protrusion rides on the upper surface of the rotating member. Double container. The double container according to any one of claims 1 to 5, wherein the plurality of engaging protrusions all have the same shape and are evenly arranged in the circumferential direction of the inner container.

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