Container body and mounting mechanism

Abstract

To suppress or prevent detachment of an inner container from an outer container when attaching or detaching the inner container from the outer container.SOLUTION: A container body 10 includes an inner container 20 and an outer container 30 in which the inner container 20 can be detachably stored. The inner container 20 has a protruding engagement part 22c formed along a part of an outer peripheral surface, the engagement part 22c has a protrusion part 22d. The outer container 30 includes: a first groove part 33 formed on a part of an inner peripheral surface, has a first region 33a and a second region 33b, and guides the engagement part 22c; a recessed part 32 that communicates with the first region 33a and allows the engagement part 22c to move into the first groove part 33 when the inner container 20 is attached or detached; a restricting rib 34 formed in the recessed part 32 or the first groove 33 and is capable of restricting removal of the attached inner container 20; and a locking rib 33c formed between the first region 33a and the second region 33b.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a container body including an inner container and an outer container to which the inner container is detachably attached. [Background technology]

[0002] A container body is known that is made up of an inner container that contains cosmetics and an outer container that can contain the inner container. The inner container is detachable from the outer container (also called a parent container when decorated) and is fixed when attached. Conventional techniques for fixing the inner container to the outer container include a technique for fixing the inner container attached inside the outer container by rotating a rotating body provided on the outer container, and a technique for engaging an elastic fixing means formed on the inner container with an engagement protrusion on the outer container (for example, Patent Document 1 and Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-151340 A [Patent Document 2] JP 2019-189327 A

[0004] However, no consideration is given to detachment before the inner container is engaged with the outer container, i.e., immediately after the inner container is attached to the outer container, or to unexpected detachment when removing the inner container from the outer container. Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, it is desirable to suppress or prevent the inner container from becoming detached from the outer container when attaching or detaching the inner container from the outer container. [Means for solving the problem]

[0006] In order to solve at least part of the above problems, the present disclosure employs the following various aspects.

[0007] A first aspect provides a container body including an inner container and an outer container capable of detachably accommodating the inner container. The inner container includes a convex engaging portion formed along a portion of an outer circumferential surface, the engaging portion including a protrusion, and the outer container includes a first groove portion formed on a portion of an inner circumferential surface, the first groove portion having a first region and a second region and guiding the engaging portion, a recess portion communicating with the first region and allowing the engaging portion to move to the first groove portion when the inner container is attached or detached, a restricting rib formed in the recess portion or the first groove portion and capable of restricting removal of the attached inner container, and a locking rib formed between the first region and the second region.

[0008] A second aspect provides a container body including an inner container and an outer container capable of detachably accommodating the inner container, wherein the inner container includes a protruding engagement portion formed along a portion of an outer circumferential surface, and the outer container includes a first groove portion formed on a portion of an inner circumferential surface, the first groove portion having a first region and a second region and guiding the engagement portion, a recess portion communicating with the first region and allowing the engagement portion to move to the first groove portion when the inner container is attached or detached, and a restricting rib formed in the recess portion or the first groove portion and capable of restricting removal of the attached inner container, and the width of the second region is narrower than the width of the first region.

[0009] According to the container bodies of the first and second aspects, it is possible to suppress or prevent the inner container from becoming detached from the outer container when attaching or detaching the inner container to the outer container.

[0010] In the container according to the first or second aspect, the outer container may further include a second groove formed in a part of the inner circumferential surface in communication with the first region and capable of accommodating at least a part of the engagement portion. In this case, detachment of the inner container during removal can be further suppressed or prevented.

[0011] In the container according to the first or second aspect, the width of the second groove may be narrower than the width of the first region, which can further suppress or prevent the inner container from falling off when removed.

[0012] A third aspect provides an attachment mechanism provided inside an outer container for attaching an inner container. The attachment mechanism according to the third aspect includes a first region and a second region, a first groove portion capable of accommodating an engagement portion formed on an outer circumferential surface of the inner container, a recess portion communicating with the first region and allowing the engagement portion to move to the first groove portion when the inner container is attached or detached, a restriction rib formed in the recess portion or the first groove portion and capable of restricting removal of the attached inner container, and a locking rib formed between the first region and the second region.

[0013] A fourth aspect provides an attachment mechanism provided inside an outer container for attaching an inner container. The attachment mechanism according to the fourth aspect includes a first groove having a first region and a second region, capable of engaging an engagement portion formed on an outer circumferential surface of the inner container, a recess communicating with the first region for allowing the engagement portion to move to the first groove when the inner container is attached or detached, and a restriction rib formed in the recess or the first groove for restricting removal of the attached inner container.

[0014] According to the attachment mechanisms of the third and fourth aspects, it is possible to suppress or prevent the inner container from becoming detached from the outer container when attaching or detaching the inner container to the outer container.

[0015] The attachment mechanism according to the third or fourth aspect may further include a second groove portion that communicates with the first region and is capable of accommodating at least a portion of the engagement portion. In this case, detachment of the inner container during removal can be further suppressed or prevented.

[0016] In the attachment mechanism according to the third or fourth aspect, the width of the second groove may be narrower than the width of the first region, which can further suppress or prevent the inner container from falling off when removed. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a side view of the inner container according to the first embodiment. [Diagram 2] FIG. 2 is a bottom view of the inner container according to the first embodiment. [Diagram 3] FIG. 2 is a plan view of an outer container according to the first embodiment. [Figure 4] 4 is a cross-sectional side view of the outer container according to the first embodiment taken along line IV-IV in FIG. 3. [Diagram 5] FIG. 1 is an explanatory view showing an example of a product including a container body according to a first embodiment. [Figure 6] 6 is an explanatory diagram showing an inner container in a detachable position relative to an outer container in the container body according to the first embodiment, taken along line VI-VI in FIG. 5. [Figure 7] 6 is an explanatory diagram showing an inner container located at a fixed position relative to an outer container in the container body according to the first embodiment, taken along line VI-VI in FIG. 5. [Figure 8] 6 is an explanatory diagram showing an inner container located at a detachment prevention position relative to an outer container in the container body according to the first embodiment, taken along line VI-VI in FIG. 5. [Figure 9] FIG. 11 is an explanatory view of a first groove portion in a container according to a second embodiment. [Figure 10] FIG. 11 is an explanatory view showing an inner container positioned at a fixed position relative to an outer container in a container body according to a third embodiment. [Figure 11] FIG. 11 is an explanatory view showing an inner container in a container body according to a third embodiment, the inner container being positioned at a detachable position relative to an outer container. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, a container body including an inner container and an outer container capable of detachably accommodating the inner container, and an attachment mechanism provided inside the outer container for attaching the inner container according to the present disclosure will be described based on embodiments with reference to the drawings. Note that in the following description, the container body will be described as an example.

[0019] First embodiment: 1 to 4, the container body 10 according to the first embodiment includes an inner container 20 and an outer container 30 capable of detachably housing the inner container 20. As shown in Fig. 5, the outer container 30 may be used together with a case 110 for decoration that is provided on the outside of the outer container 30, or may be used without a case, that is, the outer container 30 may be used as is, or the outer surface of the outer container 30 may be decorated. Hereinafter, the direction in which the inner container 20 is attached to and detached from the outer container 30 is referred to as the up-down direction.

[0020] As shown in Fig. 1 and Fig. 2, the inner container 20 includes a bottomed, approximately semi-bowl-shaped storage section 21 in which contents, for example, cosmetics, are stored, and an annular engagement mechanism section 22 used to attach the inner container 20 to the outer container 30. The storage section 21 has a cross section that is approximately semicircular, is defined by walls of approximately the same thickness, and has similar inner and outer shapes. The storage section 21 has an opening 21a that is circular in plan view defined by the walls. The storage section 21 only needs to have at least an outer shape that is approximately semi-bowl-shaped or approximately hemispherical with a bottom, and the inner shape may have any desired shape without being restricted by the outer shape. In this case, the thickness of the walls varies depending on the location.

[0021] The engagement mechanism 22 is formed in a circular ring shape along the opening 21a. The engagement mechanism 22 includes an annular portion 221 and a flange portion 222 formed on the upper side of the annular portion 221. The outer diameter of the annular portion 221 is longer than the outer diameter of the opening 21a, and a step portion 223 is formed below the opening 21a. In this embodiment, the side of the engagement mechanism 22 that is continuous with the opening 21a is called the lower side, and the opposite side is called the upper side. Two convex engagement portions 22c are formed along the outer circumference on the outer surface of the annular portion 221. The engagement portion 22c has a rectangular parallelepiped shape of a predetermined length, and in this embodiment, the engagement portion 22c is arranged point-symmetrically with respect to the central axis of the annular portion 221. The number of engagement portions 22c may be one or three or more. When two or more engagement portions 22c are provided, it is desirable that the intervals between the engagement portions 22c are equal in order to stabilize the inner container 20 attached to the outer container 30. A protrusion 22d is formed on each of the engagement parts 22c. The protrusion 22d is formed at or near one end of the engagement part 22c. The protrusion 22d climbs over a locking rib 33c of the outer container 30, which will be described later, and regulates the rotational movement of the inner container 20 attached to the outer container 30. As a result, the inner container 20 is fixed to the outer container 30. The degree of fixation, for example, the play, can be appropriately adjusted by the distance between the locking rib 33c and the protrusion 22d at the stop position of the inner container 20 that is rotated and attached to the outer container 30. The height of the engagement part 22c is set to a height that does not contact the locking rib 33c, and the height of the protrusion 22d is set to a height that contacts the locking rib 33c.

[0022] In this embodiment, a cylindrical part 26 for attaching a lid of a case is connected to the engagement mechanism 22 of the inner container 20. A threaded part 261 (male thread) for screwing with the lid is formed on the outer circumferential surface of the cylindrical part 26. A step part for realizing sealing between the lid and the cylindrical part 26 is formed at the connection part between the cylindrical part 26 and the engagement mechanism 22. A locking protrusion 262 for locking the lid is formed on the upper surface of the step part. A threaded part (female thread) corresponding to the threaded part 261 is formed on the inside of the lid. When the inner container 20 is used as a refill, it is distributed with the lid of the refill product attached to the cylindrical part 26.

[0023] The inner container 20 may be formed by integrally forming the storage section 21, the engagement mechanism 22, and the cylindrical section 26, for example, by injection molding, or by joining the storage section 21, the engagement mechanism 22, and the cylindrical section 26, which are formed as separate members. Alternatively, the engagement mechanism 22 and the cylindrical section 26 may be formed as an integral part and joined to the storage section 21, which is formed as a separate member. The joining may be performed by using an adhesive, or by thermally melting the joining portions of the respective members. The inner container 20 is formed from a resin material, for example, a plastic material such as PET that is easily recyclable.

[0024] As shown in Figures 3 and 4, the outer container 30 has a substantially semi-bowl-like shape with a bottom corresponding to the outer shape of the inner container 20 in order to accommodate the inner container 20. The cross section of the outer container 30 is substantially semicircular. The outer container 30 only needs to have at least its inner shape, i.e., the inner wall surface facing the inner container 20, substantially semi-bowl-like with or without a bottom, and the outer shape may be any shape. In this embodiment, the outer container 30 is defined by walls of substantially the same thickness.

[0025] The outer container 30 has an opening 31 surrounded by an annular edge 311. A first step 31a and a second step 31b are formed on the inner side surface of the outer container 30 near the opening 31, which are annular in plan view. When the inner container 20 is attached, the first step 31a abuts against the flange 222, and the second step 31b abuts against the step 223 of the engagement mechanism 22. A recess 32, i.e., a cutout, is formed in a part of the opening 31, more specifically, in a part of the first step 31a. The recess 32 has a dimension that allows the engagement portion 22c of the inner container 20 to pass through when the inner container 20 is attached or detached. The recess 32 is formed at a position corresponding to the position where the engagement portion 22c of the inner container 20 is formed.

[0026] A first groove 33 is formed on the inner wall surface of the outer container 30, i.e., on a part of the inner circumferential surface, for guiding the engaging portion 22c of the inner container 20 to a fixed position when the inner container 20 is attached. More specifically, the first groove 33 is formed on the inner wall surface between the first step portion 31a and the second step portion 31b. The first groove 33 has a width dimension larger than the width dimension of the engaging portion 22c so that the engaging portion 22c is movable. The first groove 33 has a first region 33a and a second region 33b. The first region 33a and the second region 33b have the same groove width. The first region 33a is communicated with the recess 32 so that the engaging portion 22c is movable in the up-down direction when the inner container 20 is attached or detached. The second region 33b accommodates the engaging portion 22c when the inner container 20 attached to the outer container 30 is fixed. The length of the second region 33b is preferably longer than the engaging portion 22c so that the engaging portion 22c can be entirely accommodated therein, but may be shorter. A locking rib 33c is formed between the first region 33a and the second region 33b. The locking rib 33c is a rib-shaped portion extending in the vertical direction and protruding from the bottom portion 33d of the first groove portion 33. The locking rib 33c is formed at a position where the moving engaging portion 22c can be accommodated in the second region 33b, and locks the protruding portion 22d of the engaging portion 22c to fix the inner container 20 to the outer container 30. When the length of the engaging portion 22c is shorter than the length of the second region 33b, the locking rib 33c can be formed in the second region 33b, and when the length of the engaging portion 22c is longer, the locking rib 33c can be formed in the first region 33a. The locking rib 33c is set so that the distance from the tip of the locking rib 33c to the annular portion 221 of the inner container 20 is longer than the height of the engaging portion 22c and shorter than the height of the protrusion 22d. In other words, the locking rib 33c has a dimension that does not contact the engaging portion 22c but contacts and interferes with the protrusion 22d.

[0027] A restricting rib 34 is formed in the recess 32 or the first groove 33 at a portion continuing from the recess 32 to the first groove 33. In this embodiment, the restricting rib 34 is formed in the recess 32. The restricting rib 34 engages with the engaging portion 22c that has moved to the first groove 33 via the recess 32, suppressing or preventing the engaging portion 22c from moving toward the recess 32. The height of the restricting rib 34 is set to a height that allows the engaging portion 22c to move by sliding due to the stress applied when the inner container 20 is attached, but cannot be overcome by the weight of the case 110, the case lid 120, and the outer container 30. The restricting rib 34 may be formed at a position where the distance from the second step 31b is greater than the height or thickness of the engaging portion 22c. In this embodiment, the restricting rib 34 is formed in the recess 32, but if the width of the engaging portion 22c is sufficiently smaller than the width of the first groove portion 33, it may be formed in the first groove portion 33, and if the width of the engaging portion 22c is slightly smaller than the width of the first groove portion 33, it may be formed between the first groove portion 33 and the recess 32. In addition, it is preferable that the restricting rib 34 is formed at a position in the first groove portion 33 where no large play is generated in the engaging portion 22c.

[0028] The end of the first region 33a of the first groove 33, i.e., the end opposite to the end in contact with the second region 33b, is connected to the second groove 35. The second groove 35 may have a length capable of accommodating at least a part of the engaging portion 22c, and may have a length shorter than the second region 33b of the first groove 33. The width of the second groove 35 is narrower than the width of the first groove 33, and has a width dimension that abuts to an extent that allows the engaging portion 22c to enter. Therefore, the engaging portion 22c that has moved to the second groove 35 is frictionally engaged by the frictional force generated between the engaging portion 22c and the second groove 35. The width of the second groove 35 may be gradually narrowed as it moves away from the first groove 33. This allows the engaging portion 22c to smoothly enter and frictionally engage.

[0029] 5 to 8, the movement and effect of the engaging portion 22c with respect to the first groove portion 33 and the second groove portion 35 when the inner container 20 is attached to or detached from the outer container 30 will be described. As shown in FIG. 5 and described above, the outer container 30 can be used by being incorporated in a case 110 that provides the appearance of the product 100. For example, the outer container 30 is fixed to the inside of the case 110 having an inner diameter dimension that matches / corresponds to the outer dimensions of the outer container 30 by adhesion or welding. The case 110 is distributed with a case lid 120 attached to it. When the contents in the inner container 20 run out and the inner container 20 is replaced as a refill product, the existing inner container 20 fixed to the outer container 30 is rotated from the fixed position to the attachment / detachment position (rotated in the first direction) by rotating the case lid 120, and is taken out from the outer container 30. A locking rib 33c is formed on the outer container 30 to prevent the inner container 20 from immediately coming off from the outer container 30 by one action from the fixed position to the detachable position. If the case 110 is relatively heavy or if the inner container 20 is detached many times, the outer container 30 may fall off at the detachable position. Since the outer container 30 has the second groove 35, the engagement portion 22c of the inner container 20 that is rotated from the fixed position to the detachable position is frictionally engaged with the second groove 35 at the detachment prevention position, thereby preventing or preventing the outer container 30 from falling off due to the operation of one action. A new inner container 20 with a lid is attached to the outer container 30 from which the inner container 20 has been removed, and the outer container 30 is rotated from the detachable position to the fixed position (a second direction opposite to the first direction). The lid is removed from the inner container 20 fixed to the outer container 30, and the case lid 120 is attached to the cylindrical portion 26, completing the replacement operation of the inner container 20, i.e., the refill operation. The following describes how to fix, release, and prevent the inner container 20 from falling off the outer container 30, with reference to diagrams showing the positions of each component of the inner container 20 and outer container 30 at the attachment / detachment position P1, the fixed position P2, and the detachment prevention position P3.

[0030] FIG. 6 shows the relative positional relationship between the inner container 20 and the outer container 30 when the inner container 20 is in the attachment / detachment position P1. The dashed line indicates the position of the engagement portion 22c of the inner container 20, and the attachment / detachment position P1 is indicated to indicate the relative position of the inner container 20 and the outer container 30 with respect to the dashed line. At the attachment / detachment position P1, where the inner container 20 is attached to the outer container 30 or where the inner container 20 is removed from the outer container 30, the engagement portion 22c is in a position communicating with the recess 32 in the first groove portion 33, i.e., in the first region 33a. When the engagement portion 22c is attached, the projection portion 22d overcomes the restricting rib 34, and the engagement portion 22c moves to the first region 33a of the first groove portion 33 via the recess 32. This overtaking action realizes a clicking sensation that makes the user aware that the inner container 20 is fixed to the outer container 30. As a result, the inner container 20 is attached to the outer container 30. During removal, the engaging portion 22c moves from the first region 33a of the first groove portion 33 through the recess 32 to the outside of the outer container 30 by climbing over the restricting rib 34. As a result, the inner container 20 is removed from the outer container 30. At the attachment / detachment position P1, the locking rib 33c restricts the upward movement of the engaging portion 22c, i.e., in the direction in which the inner container 20 is removed from the outer container 30. This makes it possible to suppress or prevent the outer container 30 from falling or coming off when the inner container 20 is gripped, i.e., detachment immediately after the inner container 20 is attached or detachment when the inner container 20 is removed.

[0031] FIG. 7 shows the relative positional relationship between the inner container 20 and the outer container 30 when the inner container 20 is in the fixed position P2. The dashed line indicates the position of the engaging portion 22c of the inner container 20, and the fixed position P2, which indicates the relative position of the inner container 20 and the outer container 30, is indicated with a symbol with respect to the dashed line. At the fixed position P2, where the inner container 20 is fixed to the outer container 30, the engaging portion 22c is located in the second region 33b of the first groove portion 33. When fixed, the inner container 20 is rotated relative to the outer container 30 from the first region 33a to the second region 33b. As a result, the engaging portion 22c moves over the locking rib 33c from the first region 33a to the second region 33b. This provides a clicking sensation. At the fixed position P2, the locking rib 33c restricts the horizontal movement of the engaging portion 22c, i.e., the rotation of the inner container 20 relative to the outer container 30. Therefore, the inner container 20 is fixed to the outer container 30. When released, that is, when released from the fixed state, the inner container 20 is rotated relative to the outer container 30 from the second region 33b to the first region 33a. As a result, the engaging portion 22c moves over the locking rib 33c from the second region 33b to the first region 33a. As a result, the engaging portion 22c moves to the first region 33a which communicates with the recess 32, and the inner container 20 can be removed from the outer container 30.

[0032] FIG. 8 shows the relative positional relationship between the inner container 20 and the outer container 30 when the inner container 20 is in the detachment prevention position P3. The dashed line indicates the position of the engaging portion 22c of the inner container 20, and the detachment prevention position P3, which indicates the relative position of the inner container 20 and the outer container 30 with respect to the dashed line, is indicated. For ease of understanding, the term "detachment prevention" is used, which means suppressing or preventing the inner container 20 from being unintentionally detached from the outer container 30. Here, "unintentional" means that there is no intention to remove the inner container 20 from the outer container 30 at the attachment / detachment position P1, and for example, means that there is no action of removing the inner container 20 from the outer container 30 with sufficient force to cause the engaging portion 22c to overcome the restricting rib 34. When the inner container 20 is removed from the outer container 30, the inner container 20 is rotated relative to the outer container 30 in the direction from the second region 33b to the first region 33a. As a result, the engaging portion 22c moves from the second region 33b to the first region 33a, climbing over the locking rib 33c. At this time, the upward movement of the engaging portion 22c is suppressed or prevented by the restricting rib 34. However, when the inner container 20 is rotated with force or when the restricting rib 34 is worn over time, the upward movement of the engaging portion 22c may not be suppressed or prevented. In the container body 10 according to this embodiment, the outer container 30 is provided with the first groove portion 33, more specifically, the second groove portion 35 which is connected to the first region 33a and is narrower than the first region 33a. Therefore, when the inner container 20 is rotated from the second region 33b to the first region 33a, at least a part of the engaging portion 22c is frictionally engaged by the second groove portion 35, and the inner container 20 is in an engaged state with the outer container 30. In order for the engaging portion 22c to overcome the locking rib 33c, it is necessary to rotate the inner container 20 with a relatively large force, and the engaging portion 22c is likely to be frictionally engaged with the second groove portion 35. As a result, the inner container 20 does not come off from the outer container 30 by a single action for releasing the fixation of the inner container 20, and it is possible to suppress or prevent unexpected detachment when removing the inner container from the outer container, such as unintentional removal of the inner container 20 or dropping of the outer container 30.When the inner container 20 is gently rotated from the second groove 35 toward the first groove 33 in order to move the inner container 20 to the first region 33a as an action intended for removal of the inner container 20, the engaging portion 22c is released from the second groove 35 and moves to the outside of the outer container 30 via the recess 32. As a result, the inner container 20 is removed from the outer container 30.

[0033] According to the container body 10 of the first embodiment described above, it is possible to reduce or prevent detachment of the inner container 20 immediately after mounting the inner container 20 to the outer container 30, and to prevent unexpected detachment of the inner container 20 when detaching the inner container 20 from the outer container 30. That is, the restricting rib 34 suppresses or prevents the inner container 20 from moving upward relative to the outer container 30 at the attachment / detachment position P1, thereby suppressing or preventing detachment of the inner container 20 from the outer container 30. In addition, the second groove portion 35 suppresses or prevents detachment of the inner container 20 from the outer container 30 after a rotation operation to move the inner container 20 from the fixing position P2 to the attachment / detachment position P1. This suppresses or prevents detachment of the inner container 20 from the outer container 30 during an operation intended to release the fixation of the inner container 20, and suppresses or prevents unintended separation of the outer container 30 and the inner container 20, such as the outer container 30 dropping.

[0034] Second embodiment: In the container body 10 according to the first embodiment, the inner container 20 has a protrusion 22d at the engagement portion 22c, and the outer container 30 has a locking rib 33c at the first groove portion 33. In the first embodiment, the inner container 20 is rotated relative to the outer container 30, and the protrusion 22d passes over the locking rib 33c, thereby fixing the inner container 20 to the outer container 30. In contrast, in the second embodiment, the inner container 20 does not have the protrusion 22d at the engagement portion 22c, and the outer container 30 does not have the locking rib 33c at the first groove portion 33. Thus, the second embodiment differs in that it does not have some of the components of the container body 10 according to the first embodiment. Therefore, in the following, the same components as those of the container body 10 according to the first embodiment are denoted by the same reference numerals, and their description will be omitted.

[0035] The container body 10 according to the second embodiment differs from the container body 10 according to the first embodiment in that it does not include the protrusion 22d and the locking rib 33c, and in that the first groove 33 includes a second region 33e having a width dimension narrower than the width of the engagement portion 22c, as shown in Fig. 9. The first groove 33 includes the second region 33e having a width dimension narrower than the width of the engagement portion 22c, and is thereby capable of locking the engagement portion 22c. The width of the second region 33e may be the same as or different from the groove width of the second groove 35, as long as it is narrower than the width of the first region 33a.

[0036] The container body 10 of the second embodiment is provided with the second region 33e, so that when the inner container 20 is rotated relative to the outer container 30, the engagement portion 22c is frictionally engaged by the second region 33e, and the inner container 20 is fixed to the outer container 30. According to the container body 10 of the second embodiment, when fixing the inner container 20 to the outer container 30, no operating force is required for the protrusion 22d to overcome the locking rib 33c, and the inner container 20 can be fixed to the outer container 30 more smoothly.

[0037] Third embodiment: In the first and second embodiments, a container body 10 having a spherical outer shape is used, and the inner container 20 is fixed to and released from the outer container 30 by rotating the inner container 20. In contrast, in the third embodiment, a container body 10a having a rectangular inner container 20a and an outer container 30a may be used, as shown in Figs. 10 and 11. In the rectangular container body 10a, the engaging portion 22c moves through the first groove portion 33 and the second groove portion 35 by a sliding operation that moves the inner container 20a linearly relative to the outer container 30a, and moves to the attachment / detachment position P1, the fixing position P2, and the detachment prevention position P3. Other than the outer shape of the container body 10a, the same configurations and functions as those of the first and second embodiments can be applied. According to the third embodiment, even in a container body in which the inner container is attached, detached, and fixed to the outer container by a sliding operation, such as a rectangular container body 10a, it is possible to obtain advantages similar to those of the container body 10 of the first and second embodiments.

[0038] In other embodiments: (1) In the first to third embodiments, the container body 10, 10a is provided with the outer container 30, 30a integrally formed with the mounting mechanism for mounting the inner container 20, 20a. However, the mounting mechanism may be realized separately from the outer container 30, 30a. That is, the mounting mechanism may be manufactured separately from the outer container 30, 30a and assembled to the outer container 30, 30a. The mounting mechanism includes a first groove 33 having a first region 33a and a second region 33b, capable of accommodating the engaging portion 22c formed on the outer circumferential surface of the inner container 20, a recess 32 communicating with the first region 33a and allowing the engaging portion 22c to move to the first groove 33 when the inner container 20 is attached or detached, a restricting rib 34 formed in the recess 32 or the first groove 33 and capable of restricting removal of the attached inner container 20, and a locking rib 33c formed between the first region 33a and the second region 33b. Alternatively, the mounting mechanism may include a first groove 33 having a first region 33a and a second region 33b, capable of accommodating the engaging portion 22c formed on the outer peripheral surface of the inner container 20, a recess 32 communicating with the first region 33a and allowing the engaging portion 22c to move to the first groove 33 when the inner container 20 is attached or detached, a restricting rib 34 formed in the recess 32 or the first groove 33 and capable of restricting the removal of the attached inner container 20, and the width of the second region 33b may be narrower than the width of the first region 33a. In addition, it is preferable to include a second groove 35 communicating with the first region 33a and capable of accommodating at least a part of the engaging portion 22c, and it is preferable that the width of the second groove 35 is at least narrower than the width of the first region 33a. According to this mounting mechanism, it is possible to obtain the same actions and effects as the outer containers 30 and 30a in the first to third embodiments.

[0039] Although the present disclosure has been described above based on the embodiments, the above-described embodiments are intended to facilitate understanding of the present disclosure and are not intended to limit the present disclosure. The present disclosure may be modified or improved without departing from the spirit and scope of the claims, and the present disclosure includes equivalents thereof. [Explanation of symbols]

[0040] 10, 10a...container body, 20, 20a...inner container, 21...storage section, 21a...opening, 22...engagement mechanism section, 22c...engagement section, 22d...protrusion section, 26...cylindrical section, 30, 30a...outer container, 31...opening, 31a...first step section, 31b...second step section, 32...recess, 33...first groove section, 33a...first region, 33b, 33e...second region, 33c...locking rib, 33d...bottom section, 34...regulating rib, 35...second groove section, 100...product, 110...case, 120...case lid, 221...annular section, 222...flange section, 223...step section, 261...screw section, 262...locking protrusion, 311...edge section, P1...attachment / detachment position, P2...fixed position, P3...detachment prevention position.

Claims

1. A container body, An inner container; An outer container capable of detachably housing the inner container, The inner container has a convex engagement portion formed along a part of an outer circumferential surface thereof, the engagement portion having a protrusion, The outer container comprises a first groove formed on a part of its inner surface, the first groove having a first region and a second region and guiding the engaging portion, a recess communicating with the first region and allowing the engaging portion to move to the first groove when the inner container is attached or detached, a regulating rib formed in the recess or the first groove and capable of regulating removal of the attached inner container, and a locking rib formed between the first region and the second region.

2. A container body, An inner container; An outer container capable of detachably housing the inner container, The inner container has a protruding engagement portion formed along a part of the outer circumferential surface thereof, the outer container is provided with: a first groove portion formed on a part of an inner circumferential surface, the first groove portion having a first region and a second region and guiding the engaging portion; a recess portion communicating with the first region and allowing the engaging portion to move into the first groove portion when the inner container is attached or detached; and a restricting rib formed between the recess portion and the first groove portion and capable of restricting movement of the engaging portion in the first groove portion; The width of the second region is narrower than the width of the first region.

3. The container body according to claim 1 or 2, The outer container further includes a second groove portion formed in a part of the inner circumferential surface, the second groove portion communicating with the first region of the first groove portion, and capable of accommodating at least a part of the engagement portion.

4. The container body according to claim 3, A container body, wherein the width of the second groove portion is at least narrower than the width of the first region.

5. A mounting mechanism provided on the inside of the outer container for mounting the inner container, a first groove portion having a first region and a second region, the first groove portion being capable of accommodating an engagement portion formed on an outer circumferential surface of the inner container; a recess communicating with the first region and configured to allow the engagement portion to move into the first groove when the inner container is attached or detached; a restricting rib formed in the recess or the first groove for restricting removal of the attached inner container; a locking rib formed between the first region and the second region.

6. A mounting mechanism provided on the inside of the outer container for mounting the inner container, a first groove portion having a first region and a second region, the first groove portion being capable of engaging an engagement portion formed on an outer circumferential surface of the inner container; a recess communicating with the first region and configured to allow the engagement portion to move into the first groove when the inner container is attached or detached; a restricting rib formed in the recess or the first groove and capable of restricting removal of the attached inner container; The second region has a width smaller than a width of the first region.

7. The mounting mechanism according to claim 5 or 6 further comprises: The mounting mechanism further comprises a second groove communicating with the first region and capable of receiving at least a portion of the engagement portion.

8. The mounting mechanism according to claim 7, The second groove has a width at least smaller than a width of the first region.

Images