JP7097592B2 - Packaging container - Google Patents

Description

The present invention relates to a packaging container provided with a medium container that is placed on the container body in a state of being engaged with the container body.

For example, Patent Document 1 below discloses a packaging container capable of containing a large amount of food as an object to be contained. Such a packaging container is suitable for serving food, for example, at a dinner for a large number of people. In Patent Document 1, in order to increase the accommodation capacity without expanding the planar size, an inner container 3 (medium container) capable of separately accommodating an object to be contained is provided with respect to the upper end portion of the partition wall 27 of the container body 2. It is configured to engage. As a result, in Patent Document 1, the accommodation space is expanded in the vertical direction.

Japanese Unexamined Patent Publication No. 2016-37323

In Patent Document 1, the inner container 3 is engaged with the container body 2 by engaging the engaging groove 33 formed in the center of the bottom portion 31 of the inner container 3 with the upper end portion of the partition wall 27. It is configured in. However, since the engaging groove 33 is formed in the center of the bottom portion 31 of the inner container 3, it is difficult to visually recognize the position of the engaging groove 33 when the engaging groove 33 is engaged with the partition wall 27. As a result, there was a problem that it was difficult to perform the engagement work. Further, when the inner container 3 is engaged, the inner container 3 is supported at the center of the bottom portion 31, so that the storage position of the food contained in the inner container 3 may be biased. Had a problem of poor stability.

Therefore, it is desired to realize a packaging container that can easily engage the middle container and can satisfactorily stabilize the middle container in the engaged state.

The packaging container according to this disclosure is
A packaging container including a container body, a middle container placed on the container body in a state of engaging with the container body, and a lid covering the container body and the middle container.
The inner container has an inner peripheral wall and a bottom portion forming a concave accommodating space for accommodating an object to be contained, and an outer peripheral wall surrounding the inner peripheral wall.
An engaging portion of the middle container with the container body is formed on the outer peripheral wall.

According to this configuration, since the engaging portion of the inner container with the container body is formed on the outer peripheral wall of the inner container, the engaging portion is engaged with the container body while visually recognizing the engaging portion. can do. Therefore, the engagement of the inner container can be easily performed, and for example, the engagement work can be easily performed even when the object to be contained is accommodated in the accommodation space of the inner container. Further, since the engaging portion is formed on the outer peripheral wall, the inner container is in a state of being supported at the position of the outer peripheral wall when the inner container is engaged. Therefore, for example, even if the storage position of the contained object is biased, the inner container can be satisfactorily stabilized.

As one aspect,
It is preferable that the bottom portion is arranged above the engaging portion.

According to this configuration, a space can be formed below the bottom of the inner container. Therefore, for example, the space can be used as a storage space for accommodating an object to be contained, in addition to the accommodation space formed by the inner peripheral wall and the bottom. Further, when the contained object is accommodated in this space, it is possible to prevent the contained object from coming into contact with the lower surface of the bottom portion. For example, when the object to be contained is food, the bottom surface of the bottom surface is prevented from being contaminated.

As one aspect,
The container body has an engaged portion that engages with the engaging portion.
The engaging portion and the engaged portion are provided so as to have a portion overlapping in the vertical direction.
The vertical gap between the upper end of the inner container and the inner surface of the lid when the lid is attached to the container body is the vertical gap between the engaged portion and the engaged portion. It is preferable that the length is set smaller than the overlapping length.

According to this configuration, even when the inner container is moved upward with respect to the container body while the lid is attached to the container body, the middle is before the engaging portion is completely disengaged from the engaged portion. The upper end of the container contacts the inner surface of the lid. Therefore, it is possible to always maintain a state in which the engaged portion and the engaged portion overlap in the vertical direction. Therefore, according to this configuration, it is possible to prevent the inner container from coming off from the container body while the lid is attached to the container body.

As one aspect,
It is preferable that the upper end of the middle container and the inner surface of the lid come into contact with each other while the lid is attached to the container body.

According to this configuration, it is possible to prevent the inner container from moving upward with respect to the container body while the lid is attached to the container body, and as a result, it is possible to prevent the inner container from coming off the container body. can. Further, when stacking the packaging containers, the lid of the packaging container located above bends downward while the container body of the packaging container is placed on the lid of the packaging container located below. Can be suppressed. Therefore, a plurality of packaging containers can be stacked with good stability.

As one aspect,
The container body has an engaged portion that engages with the engaging portion.
It is preferable that the engagement between the engaging portion and the engaged portion is an outer fitting or an inner fitting.

According to this configuration, when the engagement between the engaged portion and the engaged portion is external fitting, the engaged portion and the engaged portion can be fitted with a simple structure. Further, when the inner container is attached to the container body and then served, the engaging portion can function as a stopper so that the posture of the inner container does not collapse due to the influence of wind or the like. Therefore, it is possible to improve the workability of serving on the medium container. Further, when the engagement between the engaged portion and the engaged portion is internally fitted, the engaged portion and the engaged portion can be firmly fitted. For example, when a food containing a large amount of water is stored in the space inside the engaging portion as an object to be contained, the airtightness of the space can be improved, and as a result, juice leakage can be suppressed.

As one aspect,
The container body has a partition wall for partitioning a container-side storage space for accommodating an object to be contained.
The partition wall includes an annular partition wall formed in an annular shape and provided on the central portion side of the container body.
It is preferable that the middle container is placed on the annular partition wall in a state where it fits inside the outer edge of the annular partition wall.

According to this configuration, it is possible to prevent the inner container from protruding to the outside of the annular partition wall. For example, when the container-side storage space is arranged outside the annular partition wall, it is possible to prevent the container-side storage space and the middle container from overlapping when viewed in the vertical direction. Therefore, it is possible to prevent the inner container from becoming an obstacle when taking out the contents to be contained in the container-side storage space.

As one aspect,
It is preferable that the outer peripheral wall is formed in a tapered shape that spreads outward toward the bottom.

According to this configuration, since the external force acting downward on the outer peripheral wall can be dispersed to the outside, the shape retention of the inner container against the external force can be improved. For example, when stacking packaging containers, the weight of the packaging container located above comes into contact with the lid from below via the lid of the packaging container located below. Load on. Even in such a case, the outer peripheral wall can distribute the load to the outside, and as a result, the shape of the inner container can be maintained.

As one aspect,
It is preferable that the inner container is transparent.

According to this configuration, the objects to be contained contained in the accommodation space of the inner container can be seen from the outside of the outer peripheral wall. For example, when the object to be contained is food, the appearance of the packaging container as a whole can be improved. In addition, when a space for storing food is formed below the bottom of the inner container, the food contained in the space can be seen through the transparent inner container, which gives consumers a visual satisfaction. Can be done.

Further features and advantages of the techniques according to the present disclosure will be further clarified by the following illustration of exemplary and non-limiting embodiments described with reference to the drawings.

An exploded perspective view of the packaging container. Front view of the packaging container. Enlarged perspective view of the main part of the container body and the middle container. Enlarged sectional view of the main part of the packaging container. Enlarged sectional view of a main part of a packaging container according to another embodiment. Enlarged sectional view of a main part of a packaging container according to another embodiment. The perspective view of the middle container which concerns on other embodiment. Enlarged sectional view of a main part of a packaging container according to another embodiment.

The packaging container according to this embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, the packaging container 1 includes a container body 3, a middle container 5 placed on the container body 3 in a state of being engaged with the container body 3, the container body 3 and a middle container. A lid 7 that covers the 5 is provided.

The container main body 3 has a container bottom portion 32 and a container side wall 31 erected from the outer edge of the container bottom portion 32. A container-side storage space 36 for accommodating an object to be contained is formed in a space surrounded by a container bottom 32 and a container side wall 31. The container-side storage space 36 stores, for example, food or the like as an object to be contained. In the present embodiment, the cooked food (hereinafter referred to as “cooking”) is stored in the container-side storage space 36 as an object to be contained. In the following, a packaging container 1 for hors d'oeuvres containing at least two or more kinds of dishes will be described as an example. In the example shown in FIG. 1, the packaging container 1 is formed in a circular shape in a plan view.

As shown in FIG. 1, the container main body 3 has a partition wall 33 for partitioning a plurality of container-side storage spaces 36 for accommodating objects to be contained. In the present embodiment, the container-side storage space 36 has a first storage space 36A and a second storage space 36B. The first accommodation space 36A and the second accommodation space 36B are partitioned by a partition wall 33.

The partition wall 33 is erected from the bottom 32 of the container. In the example shown in FIG. 1, the partition wall 33 includes an annular partition wall 34 formed in an annular shape and provided on the central portion side of the container body 3. Here, the partition wall 33 is formed in an annular shape whose upper surface has a width in the radial direction. In the present embodiment, the partition wall 33 includes, in addition to the annular partition wall 34, a plurality of linear partition walls 35 extending radially from the annular partition wall 34. In the example shown in FIG. 1, the partition wall 33 is configured to include one annular partition wall 34 and five linear partition walls 35. However, the annular partition wall 34 is not limited to one, and a plurality of annular partition walls 34 may be formed. Further, the annular partition wall 34 includes an annular inner peripheral wall 34B facing inward of the container body 3, an annular outer peripheral wall 34A facing outward of the container body 3 and covering the annular inner peripheral wall 34B from the outside, and an annular inner peripheral wall 34B. It has an annular ceiling portion 34D that connects the upper end portion of the ring and the upper end portion of the annular outer peripheral wall 34A. The annular ceiling portion 34D has a partition wall outer edge portion 34D1 at a boundary portion with the annular outer peripheral wall 34A. In the present embodiment, the partition wall outer edge portion 34D1 corresponds to the "outer edge of the annular partition wall". In the following, the direction from the outer edge portion of the container body 3 to the central portion side is referred to as "inner side" or "inner side", and conversely, the direction from the central portion side to the outer edge portion side is "outer side" or "outer side". ".

The second storage space 36B is provided on the central portion side of the container body 3. The second storage space 36B is composed of a space surrounded by a second bottom portion 32B on the container side provided on the central portion side of the container body 3 and an annular inner peripheral wall 34B among the bottom portions 32 of the container. As described above, when a plurality of annular partition walls 34 are formed, a plurality of second accommodation spaces 36B are also provided.

The first accommodation space 36A is provided around the second accommodation space 36B. In the example shown in FIG. 1, five first accommodation spaces 36A are provided around one second accommodation space 36B. The first storage space 36A includes a container-side first bottom portion 32A provided around the container-side second bottom portion 32B of the container bottom portion 32, an annular outer peripheral wall 34A, and a plurality of linear partition walls 35 (2 in this example). It is composed of a space surrounded by a container side wall 31 and a container side wall 31.

By accommodating the same or different kinds of dishes in the first accommodation space 36A and the second accommodation space 36B, the dining table can be luxuriously decorated. Such a packaging container 1 is suitable, for example, when a large number of people have a dinner.

As shown in FIGS. 1 to 3, the middle container 5 is placed on the container body 3. In the present embodiment, the middle container 5 is placed on the annular partition wall 34 so as to be accommodated inside the partition wall outer edge portion 34D1. As shown in FIG. 1, the middle container 5 has an engaging portion 53B, and the container main body 3 has an engaged portion 34C that engages with the engaging portion 53B.

As shown in FIGS. 1 and 3, the engaged portion 34C is formed on the upper side of the annular partition wall 34. In the present embodiment, the engaged portion 34C is formed in a part of the region where the annular ceiling portion 34D is formed, and more specifically, is formed in the inner portion of the annular ceiling portion 34D (FIG. FIG. See 4th grade). In the example shown in FIG. 4, the engaged portion 34C has a loosely tapered portion 34C1 that gently inclines downward toward the inside and is folded outward from the inner end portion of the loosely tapered portion 34C1 to the outside. It has an engaged tapered portion 34C4 that inclines downward as it goes toward it, and an engaged recessed portion 34C5 that is continuously formed in the engaged tapered portion 34C4 and is recessed outward.

In the present embodiment, the engagement between the engaging portion 53B and the engaged portion 34C is an internal fitting. As shown in FIGS. 1 and 4, the lower end of the engaged portion 53B is guided from above to the engaged tapered portion 34C4 by the loosely tapered portion 34C1 of the engaged portion 34C, and then the engaged recess portion 34C5. Lock to. With the lower end of the engaging portion 53B locked to the engaged recess 34C5, the engaged tapered portion 34C4 and the engaged recess 34C5 press the lower end of the engaged portion 53B inward to engage the engaging portion 53B. It functions as a stopper for the joint portion 53B. In this way, the engaging portion 53B and the engaged portion 34C are internally fitted. As a result, the engaging portion 53B and the engaged portion 34C can be firmly fitted. Then, the airtightness of the second storage space 36B, which is the space inside the engaging portion 53B (engaged portion 34C), can be improved. In some cases, juice leakage can be suppressed.

The middle container 5 covers the second storage space 36B of the container body 3 from above and is placed on the container body 3. As shown in FIGS. 1 and 3, the inner container 5 has an inner peripheral wall 52 and a bottom portion 51 forming a concave storage space 57 for accommodating an object to be contained. In the example shown in FIG. 4, the storage space 57 is configured as an upper storage space 57 arranged above the second storage space 36B with the middle container 5 placed on the container body 3. In this embodiment, the inner container 5 is transparent. As a result, the second storage space 36B arranged below the upper storage space 57 can be visually recognized from the outside while the middle container 5 is placed on the container body 3. For example, when a dish (food) is accommodated in the second accommodation space 36B, the dish can be visually recognized from the outside, and the consumer can be visually satisfied. Therefore, it is possible to motivate consumers to purchase at stores and to make the dining table look good at home.

As shown in FIGS. 3 and 4, the medium container 5 has an opening 54 and an opening edge portion 54A surrounding the circumference of the opening 54. The opening 54 is continuously formed in the upper accommodation space 57. The object to be contained is accommodated in the upper accommodation space 57 through the opening 54. In the example shown in FIG. 3, the opening 54 and the opening edge 54A are formed in a circular shape in a plan view. As a result, it becomes easy to accommodate the object to be contained in the upper accommodation space 57 from any direction around the inner container 5. Further, the object to be contained in the upper accommodation space 57 can be easily taken out from any direction around the middle container 5, and is suitable for, for example, when a large number of people have a dinner.

As shown in FIGS. 3 and 4, the inner container 5 has an outer peripheral wall 53 surrounding the inner peripheral wall 52. In the present embodiment, the inner peripheral wall 52 is configured to face inward. The outer peripheral wall 53 is configured to face outward. The inner peripheral wall 52 and the outer peripheral wall 53 are connected to each other by a top portion 56 formed at the upper end of the inner container 5. The inner peripheral wall 52 is arranged inside the top 56, and the outer wall 53 is arranged outside the top 56. In the example shown in FIG. 1, the inner peripheral wall 52 and the outer peripheral wall 53 are formed in a circular shape in a plan view.

In the example shown in FIG. 4, the outer peripheral wall 53 is formed in a tapered shape extending outward toward the bottom. In the present embodiment, the outer peripheral wall 53 has a long tapered portion 53A that extends outward toward the bottom. Further, the inner peripheral wall 52 is formed in a tapered shape that spreads inward toward the bottom. In the present embodiment, the inner peripheral wall 52 has a short taper portion 52A that is formed shorter than the long taper portion 53A and extends inward toward the bottom. As a result, it is possible to improve the shape retention of the inner container 5 when an external force acts on the outer peripheral wall 53 and the inner peripheral wall 52 from above.

In the example shown in FIGS. 3 and 4, the inner peripheral wall 52 has an inner peripheral base end recess 52B continuously formed in the short taper portion 52A at the base end of the inner peripheral wall 52. In the present embodiment, the inner peripheral base end recess 52B is formed in a shape recessed downward. The inner peripheral base end recess 52B is formed so as to be continuous in an annular shape along the inner peripheral wall 52. Thereby, the strength of the base end portion of the inner peripheral wall 52 can be improved. Further, for example, when the food containing water is stored in the upper storage space 57, the water exuded from the food can be flowed into the inner peripheral base end recess 52B, and the food can be prevented from being immersed in the water. As a result, it is possible to prevent the texture and flavor of the food contained in the upper accommodation space 57 from being impaired.

As shown in FIGS. 1, 4, and the like, the engaging portion 53B of the middle container 5 with the container body 3 is formed on the outer peripheral wall 53. In the present embodiment, the engaging portion 53B is formed over the entire circumference of the outer peripheral wall 53. Further, the engaging portion 53B is formed at the lower end portion of the outer peripheral wall 53. In the example shown in FIG. 4, the engaging portion 53B is continuously formed below the long tapered portion 53A. The engaging portion 53B is continuously formed on the engaging bulging portion 53B3 that bulges downward and outward from the base end of the long tapered portion 53A and the engaging bulging portion 53B3, and as it goes upward. It has an engaging tapered portion 53B4 that narrows inward, and an outer flange portion 53B5 that is folded outward from the engaging tapered portion 53B4 and extends outward.

In the present embodiment, the engaged bulging portion 53B3 is guided from above to the engaged tapered portion 34C4 by the loosely tapered portion 34C1 of the engaged portion 34C, and then locked to the engaged recess portion 34C5. With the engaged bulge 53B3 locked to the engaged recess 34C5, the engaged bulge 53B3 is pressed inward by the engaged taper portion 34C4 and the engaged recess 34C5. Then, the engaging taper portion 53B4 abuts on the engaged tapered portion 34C4 and functions as a stopper for the engaging bulging portion 53B3. Therefore, the engaging portion 53B and the engaged portion 34C can be fitted more firmly.

In the example shown in FIG. 4, the bottom portion 51 is arranged above the engaging portion 53B. In the present embodiment, the bottom portion 51 is continuously formed on the inner peripheral wall 52 in the middle container 5, and the engaging portion 53B is continuously formed on the outer peripheral wall 53 in the middle container 5. More specifically, the bottom portion 51 is formed on the base end side of the short taper portion 52A on the inner peripheral wall 52, and the engaging portion 53B has a long taper on the outer peripheral wall 53 formed longer than the short taper portion 52A. It is formed on the base end side of the portion 53A. Therefore, the middle container 5 has a raised bottom shape in which the bottom portion 51 is located above the engaging portion 53B. As a result, the accommodation space of the second accommodation space 36B arranged below the bottom portion 51 can be widened. Further, for example, when the food is stored in the second storage space 36B, it is possible to prevent the food from adhering to the lower surface of the bottom portion 51. Therefore, it also suppresses dirt on the lower surface of the bottom portion 51.

In the present embodiment, the engaging portion 53B and the engaged portion 34C are provided so as to have a portion that overlaps in the vertical direction while the middle container 5 and the container main body 3 are engaged with each other. In the example shown in FIG. 4, the engaging portion 53B and the engaged portion 34C overlap within the range of the overlapping length L2 in the vertical direction. In this embodiment, the overlapping length L2 is set to the length of the engaged portion 34C in the vertical direction. More specifically, the overlapping length L2 is set to the length in the vertical direction from the upper end of the loosely tapered portion 34C1 to the lower end of the engaged recess portion 34C5 in the engaged portion 34C.

As shown in FIGS. 1 and 2, the lid 7 covers the inner container 5 and the container main body 3 in a state where the inner container 5 is placed on the container main body 3. The lid 7 is formed by a lid ceiling portion 72 that covers the inner container 5 and the container body 3 from above and a lid projecting downward from the outer edge of the lid ceiling portion 72, and the inner container 5 and the container body 3 are outwardly formed. It has a lid side wall 71 that covers the container body side wall 71, and an outer peripheral engaging portion 73 that is formed at the lower end of the lid body side wall 71 and engages with the outer peripheral engaged portion 37 of the container body 3. The shape of the lid 7 can be appropriately changed according to the shape of the container body 3. In the present embodiment, the lid 7 is formed in a circular shape in a plan view. As a result, it is possible to engage with the container body 3 which is formed in a circular shape in a plan view. The shape of the lid 7 does not depend on the shape of the inner container 5.

In the example shown in FIGS. 1 and 2, the lid 7 has a displacement suppressing portion 72A protruding upward from the ceiling portion 72 of the lid. Further, as shown in FIG. 1, in the present embodiment, the container-side second bottom portion 32B of the container body 3 is arranged above the plurality of container-side first bottom portions 32A arranged around the container-side second bottom portion 32B. Therefore, the container bottom portion 32 has a shape in which the central portion side is recessed upward as a whole. For example, when a plurality of packaging containers 1 are stacked in a state where the lid 7 is attached to the container body 3, the container body 3 of the packaging container 1 located above is the packaging located below. It is placed on the lid 7 of the container 1. At this time, the displacement suppressing portion 72A of the lid 7 is fitted into the container bottom portion 32 located above this. As a result, it is possible to suppress the horizontal displacement of the plurality of packaging containers 1 stacked in the vertical direction, and the plurality of packaging containers 1 can be stacked in a stable manner.

Here, when the packaging container 1 is viewed as a single unit, even if the inner container 5 is not properly engaged with the container body 3 or is properly engaged, some external force is received. In that case, the middle container 5 may come off from the container body 3. When the middle container 5 is detached from the container body 3 with the lid 7 attached to the container body 3, food (contained items) pops out from the upper storage space 57 or the second storage space 36B below the container body 3, and a plurality of dishes (contained items) are popped out. Different types of dishes may be mixed between the container-side storage spaces 36 of the container. In such a situation, with the lid 7 attached to the container body 3, the inner container 5 slides upward with respect to the container body 3, and the engaging portion 53B gets over the engaged portion 34C. Caused by.

Therefore, in the present embodiment, as shown in FIG. 4, in the vertical direction between the top portion 56 which is the upper end of the inner container 5 and the inner surface 72F of the lid body 7 in a state where the lid body 7 is attached to the container body 3. The gap L1 is set to be smaller than the vertical overlap length L2 between the engaging portion 53B and the engaged portion 34C. In this example, the inner surface 72F is the lower surface of the lid ceiling portion 72.

According to such a configuration, even when the inner container 5 slides upward with respect to the container body 3 while the lid 7 is attached to the container body 3, the engaging portion 53B is engaged. The top 56 of the inner container 5 comes into contact with the inner surface 72F of the lid 7 before completely getting over (disengaging) the portion 34C. Therefore, it is possible to always maintain a state in which the engaging portion 53B and the engaged portion 34C overlap in the vertical direction, and the inner container 5 is disengaged from the container body 3 with the lid 7 attached to the container body 3. Can be suppressed.

Further, in the present embodiment, of the overlapping length L2 between the engaged portion 53B and the engaged portion 34C, the vertical direction from the upper end portion of the engaged tapered portion 34C4 to the lower end portion of the engaged recess portion 34C5. The length is set to the second overlapping length L2a. Then, as shown in FIG. 4, the gap L1 is set to be smaller than the second overlapping length L2a. As a result, even when the inner container 5 slides upward with respect to the container body 3 while the lid 7 is attached to the container body 3, the engaging bulging portion 53B3 of the engaging portion 53B is covered. It does not come off from the engaged recess 34C5 of the engaging portion 34C. Therefore, it is possible to prevent the inner container 5 from being displaced from the container body 3 while the lid 7 is attached to the container body 3, and in this case, it is naturally possible to prevent the inner container 5 from being detached from the container body 3. ..

As described above, in the packaging container 1, the engaging portion 53B of the middle container 5 with the container body 3 is formed on the outer peripheral wall 53. Therefore, the engaging portion 53B can be engaged with the container body 3 while visually recognizing the engaging portion 53B. For example, when the middle container 5 and the container body 3 are engaged with each other while the food is stored in the upper storage space 57 of the middle container 5, they are engaged while visually recognizing the engaging portion 53B. be able to. Therefore, it is not necessary to pay particular attention to the engagement between the middle container 5 and the container body 3, and for example, the middle container 5 and the container body 3 are taken care not to spill the food stored in the upper storage space 57. Can be easily engaged.

Further, since the engaging portion 53B is formed on the outer peripheral wall 53, when the inner container 5 and the container main body 3 are engaged, the inner container 5 is the outermost outer peripheral wall 53 of the inner container 5. It is in a state of being supported at the position. Therefore, for example, even when the storage position of the food stored in the second storage space 36B of the middle container 5 is biased, the middle container 5 can be satisfactorily stabilized.

The packaging container 1 (container body 3, middle container 5, and lid 7) of the present embodiment can be manufactured by using, for example, a sheet material made of a thermoplastic resin as a raw material. Examples of the thermoplastic resin include a polyolefin resin (polyethylene resin, polypropylene resin, etc.), a polystyrene resin (impact resistant polystyrene resin, etc.), and a polyester resin (polyethylene terephthalate resin, heat-resistant modification). Polyethylene terephthalate resin, etc.) can be used. As the sheet material, a foamed sheet material or a non-foamed sheet material can be used, and further, a laminated sheet in which a film or the like is laminated may be used. The packaging container 1 can be molded by thermoforming using the various thermoplastic resin sheets described above. As a specific method of thermoforming, various methods such as a vacuum forming method, a compressed air forming method, a vacuum pressurized air forming method, and a hot plate forming method can be adopted.

[Second Embodiment]
Next, a second embodiment of the packaging container will be described. In the first embodiment described above, an example in which the engagement between the engaging portion 53B of the middle container 5 and the engaged portion 34C of the container body 3 is an internal fitting has been described. However, in the second embodiment, the engagement between the engaging portion 53B and the engaged portion 34C is an outer fitting. Hereinafter, the packaging container according to the second embodiment will be described with reference to FIG. Since the points not particularly described are the same as those in the first embodiment, the description thereof will be omitted.

In the example shown in FIG. 5, the engaged portion 34C is continuously formed outward of the loosely tapered portion 34C1 and has an engaged protruding portion 34C6 protruding outward. In the present embodiment, the engaged protrusion 34C6 is formed over the entire outer circumference of the loosely tapered portion 34C1.

In the example shown in FIG. 5, the engaging portion 53B has an engaging hooking portion 53B6 that is caught and engaged with the engaged protrusion 34C6. The engaging hook portion 53B6 is formed in a hook shape that curves outward at the lower end portion of the outer peripheral wall 53 of the inner container 5. The engaged portion 53B of the middle container 5 and the engaged portion 34C of the container body 3 are hooked on the engaged protrusion 34C6 from the outside in a state where the engaging hooking portion 53B6 is applying a force inward. And are externally fitted.

According to the second embodiment, the engaging portion 53B and the engaged portion 34C can be fitted with a simple structure. Further, when the middle container 5 is attached to the container main body 3 and then served, the engaging portion 53B can function as a stopper so that the posture of the middle container 5 does not collapse due to the influence of wind or the like. Therefore, the workability of serving on the middle container 5 can be improved.

[Third Embodiment]
Next, a third embodiment of the packaging container will be described. In each of the above embodiments, an example in which the engaging portion 53B of the inner container 5 and the engaged portion 34C of the container main body 3 are internally fitted or externally fitted has been described. However, in the third embodiment, the middle container 5 is placed on the container body 3 in a state where the engaging portion 53B and the engaged portion 34C are not fitted. Hereinafter, the packaging container according to the third embodiment will be described with reference to FIG. Since the points not particularly described are the same as those in the first embodiment, the description thereof will be omitted.

In the example shown in FIG. 6, the engaged portion 34C is continuously formed inside the loosely tapered portion 34C1 which is formed at the upper end of the annular partition wall 34 and gently inclines downward toward the inside. It has a steeply tapered portion 34C2 that is formed and steeply inclined downward as it goes inward, and an inner overhanging portion 34C3 that is continuously formed inside the steeply tapered portion 34C2 and projects inward. There is.

In the present embodiment, the lower end of the engaging portion 53B is placed on the inner overhanging portion 34C3, so that the engaging portion 53B and the engaged portion 34C are engaged with each other. As shown in FIG. 6, the lower end of the engaging portion 53B is guided from above to the inner overhanging portion 34C3 by the loosely tapered portion 34C1 and the steeply tapered portion 34C2 of the engaged portion 34C, and then the inner overhanging portion. It is placed on 34C3. With the lower end of the engaging portion 53B mounted on the inner overhanging portion 34C3, the steeply tapered portion 34C2 presses the lower end of the engaging portion 53B inward and functions as a stopper for the engaging portion 53B. .. In this way, the engaging portion 53B and the engaged portion 34C are engaged with each other.

As shown in FIG. 6, the engaging portion 53B is continuously formed on the outer overhanging portion 53B1 protruding outward from the base end of the long tapered portion 53A and the outer edge of the outer overhanging portion 53B1, and is also outer. It has an outer peripheral base end tapered portion 53B2 that inclines downward toward the direction.

In the present embodiment, the outer peripheral base end tapered portion 53B2 is guided from above to the inner overhanging portion 34C3 by the loosely tapered portion 34C1 and the steeply tapered portion 34C2 of the engaged portion 34C, and then to the inner overhanging portion 34C3. It will be placed. With the outer peripheral base end tapered portion 53B2 mounted on the inner overhanging portion 34C3, the outer peripheral base end tapered portion 53B2 is pressed inward by the steeply tapered portion 34C2 to prevent it from coming off.

In the present embodiment, the second overlapping length L2a is set to the length in the vertical direction from the upper end portion of the steeply tapered portion 34C2 in the engaged portion 34C to the inner overhanging portion C3. Further, also in the third embodiment, as in the first embodiment, between the top portion 56 which is the upper end of the inner container 5 and the inner surface 72F of the lid body 7 in a state where the lid body 7 is attached to the container body 3. The vertical gap L1 is set to be smaller than the second overlapping length L2a. As a result, the lid 7 is mounted on the container body 3 even in the third embodiment in which the middle container 5 is placed on the container body 3 in a state where the engaging portion 53B and the engaged portion 34C are not fitted. In this state, it is possible to prevent the inner container 5 from being displaced from the container body 3, and in this case, it is naturally possible to prevent the inner container 5 from being detached from the container body 3.

[Other embodiments]
(1) In the first and second embodiments described above, an example in which the engagement between the engaging portion 53B of the inner container 5 and the engaged portion 34C of the container body 3 is an inner fitting or an outer fitting will be described. did. However, the present invention is not limited to such an example. The engagement between the engaging portion 53B of the middle container 5 and the engaged portion 34C of the container body 3 may be "inner-outer fitting" including both inner fitting and outer fitting.

(2) In the third embodiment described above, as shown in FIG. 6, an example in which the lower end portion of the engaging portion 53B is placed on the inner overhanging portion 34C3 of the engaged portion 34C has been described. However, the present invention is not limited to such an example. The lower end portion of the engaging portion 53B may be placed on another portion of the engaged portion 34C. A specific example of this is shown in FIG. In the example shown in FIG. 8, the engaged portion 34C is formed continuously on the outer tapered portion 34C7 that inclines downward from the apex portion of the loosely tapered portion 34C1 toward the outside, and the outer tapered portion 34C7. It has an outer mounting portion 34C8 that projects toward the side. Then, the inner container 5 is attached to the container body 3 with the lower end of the engaging portion 53B mounted on the outer mounting portion 34C8. In this case, as shown in FIG. 8, the overlapping length L2 is set to the length in the vertical direction of the outer tapered portion 34C7.

(3) In the above embodiment, with the lid 7 mounted on the container body 3, there is a vertical gap L1 between the top 56 which is the upper end of the middle container 5 and the inner surface 72F of the lid 7. An example of this is described (see FIG. 4). However, the present invention is not limited to such an example. With the lid 7 attached to the container body 3, the top 56, which is the upper end of the middle container 5, and the inner surface 72F of the lid 7 come into contact with each other (in other words, the gap L1 becomes 0 (zero)). It may be configured.

Here, when a plurality of packaging containers 1 are stacked, the lid 7 of the packaging container 1 located below may bend downward due to the weight of the packaging container 1 located above. As the number of packaging containers 1 to be stacked increases, the weight increases and the amount of bending of the lid 7 also increases. Then, in this state, a force acts on the outer edge of the lid 7 in a direction in which the outer peripheral engaging portion 73 of the lid 7 is disengaged from the outer peripheral engaged portion 37 of the container body 3. As a result, the lid 7 may come off from the container body 3, and the contained object may spill from the inner container 5 and the container body 3. According to the above configuration, since the top portion 56 of the inner container 5 and the inner surface 72F of the lid 7 come into contact with each other, the inner container 5 is moved upward with respect to the container body 3 with the lid 7 attached to the container body 3. It is possible to suppress sliding, and as a result, it is possible to prevent the inner container 5 from coming off the container body 3.

(4) In the above embodiment, an example in which the long tapered portion 53A of the outer peripheral wall 53 of the inner container 5 is formed so as to have a smooth outer surface has been described. However, the present invention is not limited to such an example. As shown in FIG. 7, the long taper portion 53A may be configured to have a plurality of rib portions 53C extending along the lower side. Thereby, the strength of the outer peripheral wall 53 can be improved. In the example shown in FIG. 7, the rib portion 53C is formed over the entire circumference of the outer peripheral wall 53, but the rib portion 53C may be formed only in a part of the outer peripheral wall 53. ..

(5) In the above embodiment, an example in which the annular partition wall 34 is provided in the central portion of the container main body 3 has been described. However, the present invention is not limited to such an example. The annular partition wall 34 may be provided at a position eccentric from the central portion of the container main body 3. Further, the annular partition wall 34 is not limited to a circular shape as long as it is formed at least in an annular shape, and may have an elliptical shape, a polygonal shape, or the like in a plan view.

(6) In the above embodiment, an example in which the engaging portion 53B of the inner container 5 is formed over the entire circumference of the outer peripheral wall 53 has been described. However, the present invention is not limited to such an example. The engaging portion 53B may be formed in a part of the outer peripheral wall 53. For example, two engaging portions 53B may be formed at 180 ° intervals with respect to the annular outer peripheral wall 53, or four engaging portions 53B may be formed at 90 ° intervals.

(7) In the above embodiment, an example in which the inner peripheral wall 52 and the outer peripheral wall 53 of the inner container 5 are formed in a circular shape in a plan view has been described. However, the present invention is not limited to such an example. The inner peripheral wall 52 and the outer peripheral wall 53 may be formed in an elliptical shape, a polygonal shape, or the like in a plan view.

(8) In the above embodiment, an example in which the bottom portion 51 of the middle container 5 is arranged above the engaging portion 53B has been described. However, the present invention is not limited to such an example. The bottom portion 51 may be arranged at the same position as the engaging portion 53B in the vertical direction, or may be arranged below the engaging portion 53B.

(9) In the above embodiment, an example in which the inner container 5 is transparent has been described. However, the present invention is not limited to such an example. The inner container 5 may be opaque. For example, the inner container 5 may be translucent or may have a pattern or a color on the surface thereof.

(10) The configurations disclosed in each of the above-described embodiments can be applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction. With respect to other configurations, the embodiments disclosed herein are merely exemplary in all respects. Therefore, various modifications can be appropriately made without departing from the spirit of the present disclosure.

The technique according to the present disclosure can be used for a packaging container provided with a medium container placed on the container body in a state of being engaged with the container body.

1: Packaging container 3: Container body 5: Medium container 7: Lid 33: Partition wall 34: Circular partition wall 34C: Engaged portion
34D: Circular ceiling 34D1: Outer edge of partition wall (outer edge of annular partition wall)
35: Linear partition wall 36: Container side storage space 36A: First storage space 36B: Second storage space 51: Bottom 52: Inner peripheral wall 53: Outer peripheral wall 53B: Engagement part 56: Top (upper end of middle container)
57: Upper accommodation space (accommodation space)
72F: Inner surface (inner surface of lid)
L1: Gap (vertical gap between the upper end of the inner container and the inner surface of the lid)
L2: Overlapping length

Claims (9)

A packaging container including a container body, a middle container placed on the container body in a state of engaging with the container body, and a lid covering the container body and the middle container.
The inner container has an inner peripheral wall and a bottom portion forming a concave accommodating space for accommodating an object to be contained, and an outer peripheral wall surrounding the inner peripheral wall.
An engaging portion of the middle container with the container body is formed on the outer peripheral wall.
The container body has an engaged portion that engages with the engaging portion.
The engaging portion and the engaged portion are provided so as to have a portion overlapping in the vertical direction.
A vertical gap is formed between the upper end of the middle container and the inner surface of the lid when the lid is attached to the container body.
A packaging container in which the gap is set to be smaller than the vertical overlap length between the engaging portion and the engaged portion. The lid is formed by forming a lid ceiling portion that covers the inner container and the container body from above, a protruding portion that protrudes upward from the lid ceiling portion, and a protrusion that protrudes downward from the outer edge of the lid ceiling portion. With the side wall of the lid,
The gap is formed between the upper end of the inner container and the lower surface of the protruding portion of the lid when the lid is attached to the container body, and the engaged portion and the engaged portion are formed. The packaging container according to claim 1, which is set to be smaller than the overlapping length in the vertical direction with and. The packaging container according to claim 1 or 2, wherein the inner peripheral wall has an inner peripheral base end recess recessed downward from the bottom portion at the base end of the inner circumference thereof. The packaging container according to any one of claims 1 to 3, wherein the bottom portion is arranged above the engaging portion. Any of claims 1 to 4 in which the upper end of the middle container and the inner surface of the lid come into contact with each other when the other packaging containers are stacked upward with the lid attached to the container body. The packaging container described in item 1. The container body has an engaged portion that engages with the engaging portion.
The packaging container according to any one of claims 1 to 5, wherein the engagement between the engaging portion and the engaged portion is an outer fitting or an inner fitting. The container body has a partition wall for partitioning a container-side storage space for accommodating an object to be contained.
The partition wall includes an annular partition wall formed in an annular shape and provided on the central portion side of the container body.
The packaging container according to any one of claims 1 to 6, wherein the inner container is placed on the annular partition wall in a state where the inner container is fitted inside the outer edge of the annular partition wall. The packaging container according to any one of claims 1 to 7, wherein the outer peripheral wall is formed in a tapered shape extending outward toward the bottom. The packaging container according to any one of claims 1 to 8, wherein the inner container is transparent.

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