JP7162854B2 - packaging container - Google Patents

Description

The present invention relates to packaging containers.

BACKGROUND ART For example, a packaging container including a main container and an inner container installed in the main container is used to contain food and the like. An example of such a packaging container is disclosed in Japanese Utility Model Laid-Open No. 7-28089 (Patent Document 1). In the packaging container [food container 1] of Patent Document 1, the middle container [middle container 3] containing the curry sauce is fitted in the fixed position [the curry sauce recess 23] of the main container [main container 2]. is configured as

However, if a concave portion that fits the shape of the middle container is provided at a fixed position in the main container, for example, when it is desired to optimize the overall layout of the packaging container according to the type of food to be accommodated, it is difficult to install the middle container. It is necessary to individually fabricate a main body container having a shape corresponding to the position. In order to do so, it is necessary to separately prepare molds corresponding to each shape of the main body container, which has been a factor of cost increase.

Japanese Utility Model Laid-Open No. 7-28089

In a packaging container in which an inner container is installed in a main body container, it is desired to easily optimize the entire layout according to the type of contents to be accommodated at low cost.

The packaging container according to the present invention is
A packaging container comprising a main container and a middle container installed in the main container,
The main container has an engaged portion with which the inner container engages on an inner surface facing a storage portion that stores an object to be stored,
The inner container has an engaging portion that engages with the engaged portion,
The engaging portion of the inner container is provided so as to be able to engage with the engaged portion at a plurality of positions within the single accommodating portion of the main container.

According to this configuration, the inner container can be installed at a plurality of different positions within the single accommodating portion of the main container. In this case, the middle container, which is often formed in a shape having side walls, can also be used as a partition in the housing portion of the main container. In this way, by using the middle container configured with a high degree of freedom in the installation position as the "middle container and movable partition", it is possible to easily optimize the overall layout according to the type of the stored object. Since the main container can have a common shape irrespective of the installation position of the inner container, there is no need to individually prepare a variety of corresponding molds, and there is no increase in cost. Therefore, it is possible to easily optimize the overall layout according to the type of the object to be stored at low cost.

Preferred embodiments of the present invention are described below. However, the scope of the present invention is not limited by the preferred embodiments described below.

As one aspect,
It is preferable that the engaging portion of the inner container is slidable along the inner surface facing the accommodating portion while being engaged with the engaged portion of the main container.

According to this configuration, the installation position of the inner container can be easily adjusted by sliding the inner container in a state where the engaged portion of the main container and the engaging portion of the inner container are engaged.

As one aspect,
It is preferable that the main container further includes locked portions to which the inner container is locked at a plurality of positions in the sliding direction of the inner container on the inner surface facing the accommodating portion.

According to this configuration, the position of the inner container can be easily adjusted, and the inner container can be positioned by engaging the inner container with one of the plurality of engaged portions provided on the main container. can be easily done.

As one aspect,
The inner container has a bottom, an inner peripheral wall extending upward from the outer edge of the bottom, and an outer peripheral wall extending downward from the upper end of the inner peripheral wall beyond the position of the bottom,
The locked portion is composed of three or more ridges extending in a direction intersecting the sliding direction,
It is preferable that a lower end portion of the outer peripheral wall is provided so as to engage with two of the ridges located at different positions in the sliding direction.

According to this configuration, since the inner container is formed with a raised bottom, it is easy to create a voluminous feeling when the object is stored in the inner container, and the appearance (appearance) can be improved. In this case, by selectively engaging the lower end of the outer peripheral wall of the inner container with two ridges located at different positions in the sliding direction, the inner container can be selectively installed at a plurality of positions. The installation posture of the middle container can be stabilized.

As one aspect,
It is preferable that the engagement between the outer peripheral wall and the ridge portion is inner fitting, outer fitting, or inner/outer fitting.

With this configuration, the inner container can be stably fixed to the main container. Therefore, it is possible to prevent the inner container from moving inside, for example, during transportation of the packaging container in which the object to be contained is accommodated.

As one aspect,
The main container has a main body bottom portion and a side wall portion surrounding the periphery,
The inner container has a bottom, an inner peripheral wall extending upward from the outer edge of the bottom, and an outer peripheral wall extending downward from the upper end of the inner peripheral wall beyond the position of the bottom,
the locked portion is configured by a locking convex portion that bulges from the side wall portion toward the central portion of the main container,
It is preferable that the outer peripheral wall is provided with a locking recess that is accommodated in a state in which the locking projection is locked.

According to this configuration, since the container is formed with a raised bottom, when an object is stored in the middle container, it is easy to create a voluminous feeling, and the appearance (appearance) can be improved. In this case, by engaging the engaging concave portion of the outer peripheral wall of the inner container with the engaging convex portion of the side wall portion of the main container, the inner container can be easily positioned, and the inner container can be easily positioned relative to the main container. can be stably fixed. Therefore, it is possible to prevent the inner container from moving inside, for example, during transportation of the packaging container in which the object to be contained is accommodated.

As one aspect,
The inner container has a bottom and a peripheral wall extending upward from an outer edge of the bottom,
It is preferable that a locking portion that is locked to the locked portion is provided in the central portion, the peripheral portion, or the peripheral wall of the bottom portion.

According to this configuration, it is possible to easily optimize the overall layout according to the type of the stored object at low cost while using a commonly used bowl-shaped medium container.

As one aspect,
The main container has a main body bottom and a side wall surrounding the main body bottom,
It is preferable that the engaged portion is provided on the inner surface of the boundary portion between the side wall portion and the main body bottom portion.

According to this configuration, a portion of the side wall provided so as to surround the bottom of the main body to form the housing section for housing the object to be contained in the main body container is used to engage the middle container. The part can be rationally provided in the main container.

As one aspect,
The inner container has a bottom, an inner peripheral wall extending upward from the outer edge of the bottom, and an outer peripheral wall extending downward from the upper end of the inner peripheral wall beyond the position of the bottom,
The engaged portion is formed in a reverse tapered shape toward the central portion side of the main container as it goes upward,
It is preferable that the engaging portion is provided at the lower end portion of the outer peripheral wall, and that the engaging portion is formed in a shape that widens outward toward the bottom.

According to this configuration, since the container is formed with a raised bottom, when an object is stored in the middle container, it is easy to create a voluminous feeling, and the appearance (appearance) can be improved. In this case, the lower end portion of the outer peripheral wall of the inner container, which is formed in a widening shape, is engaged with the engaged portion of the main container, which is formed in a reverse tapered shape, so that the inner container is less likely to come off upward. can do.

As one aspect,
The inner container has a bottom and a peripheral wall extending upward from an outer edge of the bottom,
The engaged portion is formed in a reverse tapered shape toward the central portion side of the main container as it goes upward,
It is preferable that the engaging portion is provided on the outer surface of the peripheral wall, and that the engaging portion is formed in a shape that widens outward toward the bottom.

According to this configuration, it is possible to reduce costs by using a commonly used bowl-shaped medium container. In this case, the outer surface of the peripheral wall of the inner container, which is formed in a widening shape, is engaged with the engaged portion of the main container, which is formed in a reverse tapered shape, so that the inner container is prevented from coming off upward. can be done.

As one aspect,
The engaged portion is composed of a plurality of projecting portions projecting upward from the main body bottom portion of the main container in a predetermined arrangement,
The inner container has a bottom, an inner peripheral wall extending upward from the outer edge of the bottom, and an outer peripheral wall extending downward from the upper end of the inner peripheral wall beyond the position of the bottom,
The outer peripheral wall constitutes the engaging portion, and the engaging portion is provided so as to be able to engage with a combination of the projecting portions that are selected from a plurality of the projecting portions and have a predetermined shape. is preferred.

According to this configuration, since the container is formed with a raised bottom, when an object is stored in the middle container, it is easy to create a voluminous feeling, and the appearance (appearance) can be improved. In this case, the inner container can be installed at a plurality of different positions by engaging the outer peripheral wall with some of the plurality of protrusions provided in a predetermined arrangement on the bottom of the main body of the main container. can. In this case, by fitting the inner surface of the outer peripheral wall to some of the plurality of protruding portions or fitting the outer surface to the inner surface, the inner container can be installed at a plurality of different positions, and the installation attitude at each position can be changed. can be stabilized.

As one aspect,
The engaged portion is composed of a plurality of downward recesses or upward protrusions provided on the bottom portion of the main body container in a predetermined arrangement,
The inner container has a bottom and a peripheral wall extending upward from an outer edge of the bottom,
The engaging portion is configured by a downward protrusion or an upward recess provided on the bottom portion, and the downward protrusion or upward recess is selected from a plurality of the downward recesses or upward protrusions and has a predetermined shape. It is preferable that the downward concave portion or the upward protruding portion are provided so as to be fitted singly or in combination.

According to this configuration, it is possible to easily optimize the overall layout according to the type of the stored object at low cost while using a commonly used bowl-shaped medium container. In this case, at least one of a plurality of downward recesses provided in a predetermined array on the bottom of the main container is fitted with a downward projecting portion provided on the bottom of the inner container, or At least one of a plurality of upward protrusions provided in a predetermined arrangement on the bottom of the main body of the container is fitted with an upward concave portion provided on the bottom of the inner container so that the inner container can be positioned at a plurality of different positions. The installation attitude at each position can be stabilized while enabling installation.

Further features and advantages of the invention will become clearer from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

1 is an exploded perspective view of a packaging container according to an embodiment; Perspective view of main container and middle container Cross-sectional view along the second direction of the packaging container Sectional view along the first direction in one mode of use of the packaging container Cross-sectional view along the first direction in another mode of use of the packaging container A diagram showing a state in which two packaging containers are stacked Sectional drawing along the first direction of the packaging container of another aspect Sectional drawing along the first direction of the packaging container of another aspect Sectional drawing along the first direction of the packaging container of another aspect Sectional drawing along the first direction of the packaging container of another aspect Sectional drawing along the first direction of the packaging container of another aspect Sectional drawing along the second direction of the packaging container of another aspect Sectional drawing along the second direction of the packaging container of another aspect An exploded perspective view of another packaging container A plan view of another packaging container Schematic plan view of another packaging container Schematic plan view of another packaging container

An embodiment of a packaging container will be described with reference to the drawings. In this embodiment, a packaging container 1 for storing cooked food (hereinafter referred to as "cooking") as an object to be stored will be described as an example. The packaging container 1 of the present embodiment is configured as a mixed-type packaging container that collectively accommodates a plurality of types of dishes. Such a packaging container 1 is suitable for use as a packaging container for hors d'oeuvres containing, for example, a plurality of kinds of appetizers and main dishes (an example of food).

As shown in FIG. 1 , the packaging container 1 includes a main container 2 , an inner container 3 installed in the main container 2 , and a lid 4 covering the main container 2 and the inner container 3 . The main container 2 and the lid 4 are formed in an elliptical shape in a plan view (viewed from above). The inner container 3 is formed in a rectangular shape (more specifically, a rectangular shape) in plan view. The main body container 2 is a main body for containing a plurality of types of foods, which are objects to be contained, and has a container portion C for containing the plurality of types of foods. In this embodiment, the main container 2 is formed so as to have a single accommodating portion C. As shown in FIG. The middle container 3 is also capable of containing food as an object to be contained, and has a container D for containing the food.

The middle container 3 is formed smaller than the main container 2 and the lid 4, and divides the interior of the housing portion C of the main container 2 into two spaces. That is, in the packaging container 1 of the present embodiment, the inner container 3 functions as a "container" for containing food and a "partition" for partitioning the containing portion C of the main container 2 into two spaces. It also has the function of Using the inner container 3 as a "partition" in this manner is one of the characteristic features of the packaging container 1 of the present embodiment. By adopting such a configuration, it is possible to store and package various (at least three) types of foods in a separated state without providing a partition wall at a fixed position of the main container 2 .

The packaging container 1 of the present embodiment is further characterized by the fact that the inner container 3 can be installed at a plurality of positions within the single storage portion C of the main container 2 . That is, the utilization of the inner container 3 as "an inner container and a movable partition" is also one of the characteristic configurations of the packaging container 1 of the present embodiment.

The main container 2 has an engaged portion F with which the inner container 3 engages on the inner surface facing the accommodating portion C. As shown in FIG. Here, the main body container 2 has a main body bottom portion 21 and side wall portions 22 surrounding the main body bottom portion 21, as shown in FIG. A housing portion C is configured as a space defined by the main body bottom portion 21 and the side wall portion 22 . Therefore, in the present embodiment, the “inner surface facing the housing portion C” is a surface including the upper surface of the main body bottom portion 21 and the inner peripheral surface of the side wall portion 22 continuing from the periphery thereof.

The main body bottom portion 21 is formed flat as a whole and formed in an elliptical shape in a plan view. In the following description, the direction parallel to the long axis of the elliptical main body container 2 (main body bottom 21) is called "first direction X", and the direction parallel to the short axis is called "second direction Y". The first direction X and the second direction Y are orthogonal to each other (an example of "intersecting"). In this embodiment, the first direction X corresponds to the "sliding direction", and the second direction Y corresponds to the "direction crossing the sliding direction".

The side wall portion 22 is erected from the main body bottom portion 21 so as to surround the main body bottom portion 21 . The side wall portion 22 is erected in an inclined posture with respect to the main body bottom portion 21 . The side wall portion 22 is formed so as to have a two-stage inclination, and an inner inclined wall 22A continuous from the main body bottom portion 21 and an inner inclined wall 22A located outside the inner inclined wall 22A (opposite to the main body bottom portion 21). and an outer sloping wall 22B. In this embodiment, the outer sloped wall 22B is formed so as to have a gentler slope than the inner sloped wall 22A (see FIG. 3). A flange portion 25 extends outward and continues to the outside of the outer inclined wall 22B. The flange portion 43 of the lid 4 is fitted to the flange portion 25 (see FIG. 6).

In this embodiment, a guide wall 23 steeper than the inner inclined wall 22A is provided on the inner peripheral surface of the side wall 22 (in particular, the inner inclined wall 22A here) at the boundary with the main body bottom 21 . The guide wall is formed to rise vertically or at an angle close to it from the body bottom 21 (see FIG. 3). A pair of guide walls 23 are provided so as to face each other in the second direction Y in the central region in the first direction X of the loop-shaped boundary portion between the inner inclined wall 22A and the main body bottom portion 21 . Each of the pair of guide walls 23 is provided so that at least a boundary portion with the main body bottom portion 21 is parallel to the first direction X. As shown in FIG. The separation length in the second direction Y between the pair of guide walls 23 is set to be the same as or approximately the same as the length in the second direction Y of the inner container 3 . A first edge portion 34A of a support flange 34 provided at the lower end portion of the outer peripheral wall 33 of the inner container 3 is engaged with the guide wall 23 . The guide wall 23 and the first marginal portion 34A contact each other in the second direction Y. As shown in FIG. In this embodiment, the engaged portion F is configured by the guide wall 23 formed on the inner surface of the boundary portion between the side wall portion 22 and the main body bottom portion 21 .

In addition, the main container 2 further has locked portions M at a plurality of locations in the first direction X on the inner surface facing the accommodating portion C, to which the inner container 3 is locked. In this embodiment, a plurality of ridges 27 extending in the second direction Y are provided on the upper surface of the main body bottom 21 . The ridge portion 27 is provided in the installation area of the guide wall 23 in the main body bottom portion 21 (the central area in the first direction X). A plurality of ridges 27 are provided on one side in the first direction X with respect to the symbol mark 29 provided in the center in the first direction X, and the same number of ridges 27 are arranged in the first direction with respect to the symbol mark 29 . It is provided on the other side of the direction X. On both sides of the symbol mark 29, a plurality of (three in this example) ridges 27 are provided at a predetermined pitch. The installation pitch of the ridges 27 (the interval between adjacent ridges 27 in the first direction X) is set smaller than the width of the inner container 3 in the first direction X. As shown in FIG. In this embodiment, the installation pitch of the ridges 27 is set to about ⅓ of the width of the inner container 3 in the first direction X. As shown in FIG.

In addition, among the groups of ridges 27 located on both sides of the symbol mark 29, the interval in the first direction X between the groups of the same order when counted from one side in the first direction X is It is set to be the same as or approximately the same as the width in the first direction X. In this embodiment, the spacing in the first direction X between the mutually facing side surfaces of the pair of ridges 27 in the same order is set to be approximately the same as the width in the first direction X of the inner container 3 . Therefore, the second side edge portion 34B of the support flange 34 provided at the lower end portion of the outer peripheral wall 33 of the inner container 3 is engaged with the predetermined set of ridges 27 located on both sides of the symbol mark 29. be stopped. The ridge portion 27 and the second edge portion 34B are in contact with each other in the first direction X. As shown in FIG. In the present embodiment, the locked portion M is configured by the ridge portion 27 formed on the upper surface of the main body bottom portion 21 .

The inner container 3 of this embodiment has an engaging portion E that engages with the engaged portion F and a locking portion L that engages with the locked portion M. As shown in FIG. The inner container 3 has a bottom portion 31, an inner peripheral wall 32 extending upward from the outer edge of the bottom portion 31, and an outer peripheral wall 33 extending downward from the upper end portion of the inner peripheral wall 32, as shown in FIG. The bottom portion 31 is formed flat as a whole, and is formed in a rectangular shape in plan view (in this example, a rectangular shape longer in the second direction Y than in the first direction X). The bottom portion 31 may be formed flat as a whole. As in the illustrated example, the bottom portion 31 may be provided with an annular concave portion formed so as to be slightly recessed downward compared to the central portion, in the outer peripheral portion thereof. good.

The inner peripheral wall 32 is erected from the bottom portion 31 so as to surround the bottom portion 31 . The inner peripheral wall 32 is tapered slightly outward as it goes upward. The inner peripheral wall 32 is formed in a two-step tapered shape having a stepped portion near the center in the vertical direction. The outer peripheral wall 33 hangs down from the inner peripheral wall 32 while surrounding the inner peripheral wall 32 . The outer peripheral wall 33 is formed in a shape that widens slightly outward as it goes downward. The outer peripheral wall 33 extends downward beyond the position of the bottom portion 31 in the vertical direction. That is, the height of the outer peripheral wall 33 in the vertical direction is set higher than the height of the inner peripheral wall 32 in the vertical direction. The inner container 3 is a raised bottom container in which the bottom portion 31 is positioned higher than the lower end portion of the outer peripheral wall 33 .

A support flange 34 that bulges outward is provided at the lower end of the outer peripheral wall 33 having two surfaces facing in the first direction X and two surfaces facing in the second direction Y. As shown in FIG. The lower end of the support flange 34 is further folded outward. The support flange 34 has a pair of first side edges 34A facing both sides in the second direction Y and a pair of second side edges 34B facing both sides in the first direction X at its folded portion.

The first edge portion 34A is formed to extend parallel to the first direction X. As shown in FIG. The first edge portion 34A engages with the guide wall 23 provided on the side wall portion 22 of the main container 2 (see FIG. 3). In this embodiment, the engaging portion E is configured by a pair of first side edge portions 34A of the support flange 34 provided at the lower end portion of the outer peripheral wall 33 . Further, the second edge portion 34B is formed so as to extend parallel to the second direction Y. As shown in FIG. The second edge portion 34B can be engaged with any one of the plurality of ridges 27 provided on the main body bottom portion 21 of the main container 2 (see FIGS. 4 to 6). In this embodiment, a locking portion L is configured by a pair of second edge portions 34B of the support flange 34 provided at the lower end portion of the outer peripheral wall 33 .

In such a packaging container 1, the engaging portion E (in this example, the first edge portion 34A) of the inner container 3 is the engaged portion at a plurality of positions within the single accommodating portion C of the main body container 2. It is provided so as to be engageable with F (guide wall 23 in this example). At that time, as shown in FIG. 2, the first edge portion 34A of the inner container 3 provided parallel to the first direction X engages the guide wall 23 of the main container 2 provided parallel to the first direction X. Since they are slidable in the joined state, the engaging portion E of the inner container 3 can be engaged with the engaged portion F of the main container 2 at a plurality of positions. In this way, by sliding the inner container 3 in the first direction X while the guide wall 23 of the main container 2 and the first edge portion 34A of the inner container 3 are engaged with each other, The installation position of the container 3 can be easily adjusted.

In addition, while the first side edge portion 34A of the inner container 3 and the guide wall 23 of the main container 2 are in an engaged state so as to be slidable in the first direction X, the locking portion L of the inner container 3 (in this example, the second A peripheral edge portion 34B) is provided so as to engage with two ridge portions 27 located at different positions in the first direction X. As shown in FIG. By engaging the pair of second side edge portions 34B of the inner container 3 with the pair of protrusions 27 in this way, the inner container 3 can be easily positioned in the first direction X. As shown in FIG. As shown in FIGS. 4 to 6, by changing the set of protrusions 27 that actually engage the pair of second edge portions 34B of the inner container 3, the single accommodation portion C in the main container 2 can be changed. The inner container 3 can be stably fixed at a plurality of positions inside.

The inner container 3 surrounded on all sides by the outer peripheral wall 33 can be used as the "inner container and movable partition" as described above, and the overall layout can be easily optimized according to the type of food to be accommodated. can. For example, in the case of storing foods of the same volume on both sides of the middle container 3, the middle container 3 can be placed in the center in the first direction X (see FIG. 6). Further, for example, when the volume of food to be accommodated on both sides of the inner container 3 is different, the inner container 3 can be installed in one of the first directions X (see FIGS. 4 and 5).

Since the middle container 3 is formed with a raised bottom, it is easy to create a voluminous feeling of the food accommodated in the middle container 3, and the appearance (appearance) can be improved. In determining the installation position of the middle container 3, the preferred housing position of the food that should be housed in the middle container 3 to be conspicuous may be taken into consideration.

As shown in FIG. 1 , the lid 4 has a ceiling portion 41 , a side wall portion 42 surrounding the ceiling portion 41 , and a flange portion 43 provided on the outer edge of the side wall portion 42 . The ceiling part 41 is formed flat as a whole, and is formed in an elliptical shape in a plan view. The side wall portion 42 is formed to extend downward from the outer edge of the ceiling portion 41 while being inclined with respect to the ceiling portion 41 . The flange portion 43 is formed to extend outward from the lower end portion of the side wall portion 42 . The flange portion 25 of the main container 2 is fitted to the flange portion 43 (see FIG. 6).

At both end portions of the ceiling portion 41 in the first direction X, raised portions 41A that protrude upward are formed along the outer edges thereof. The pair of raised portions 41A are each formed in a U-shape in a plan view, and are formed so that the U-shaped opening portions face each other. When a plurality of packaging containers 1 are vertically stacked, the protuberance 41A is formed from the outside against the side wall 22 (specifically, the inner inclined wall 22A) of the main container 2 of the packaging container 1 directly above. It is lockable (see Figure 6). Then, movement of the immediately above packaging container 1 in both the first direction X and the second direction Y is restricted.

The packaging container 1 (the main container 2, the inner container 3, and the lid 4) of the present embodiment can be manufactured using a sheet material made of thermoplastic resin, for example. Examples of thermoplastic resins include polyolefin resins (polyethylene resins, polypropylene resins, etc.), polystyrene resins (impact-resistant polystyrene resins, etc.), polyester resins (polyethylene terephthalate resins, modified polyethylene with heat resistance, etc.). At least one of terephthalate-based resins, etc.) and styrene-based thermoplastic elastomers (styrene-butadiene-styrene block copolymers, etc.) can be employed. As the sheet material, a foamed sheet material or a non-foamed sheet material can be used, and a laminated sheet obtained by laminating a film or the like on these materials can also 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 vacuum forming method, air pressure forming method, vacuum pressure forming method, and hot plate forming method can be adopted.

[Other embodiments]
(1) In the above-described embodiment, an example has been described in which the engaged portion F is configured by the guide wall 23 formed on the inner surface of the boundary portion between the side wall portion 22 and the main body bottom portion 21 . However, without being limited to such a configuration, for example, a pair of ridges extending in the first direction X is provided on the upper surface of the main body bottom 21, and the pair of ridges constitutes the engaged portion F. can be

(2) In the above-described embodiment, an example has been described in which the engaged portion M is configured by the ridge portion 27 formed on the upper surface of the main body bottom portion 21 . However, without being limited to such a configuration, for example, a point-like projection may be provided instead of the ridge portion 27, and the locked portion M may be configured by the projection.

(3) In the above-described embodiment, a configuration in which a total of six protrusions 27 as engaged portions M are provided at a plurality of locations in the first direction X has been described as an example. However, the number of protrusions 27 may be arbitrary without being limited to such a configuration.

(4) In the above-described embodiment, the engagement between the outer peripheral wall 33 of the inner container 3 and the protrusion 27 of the main container 2 is simply abutment in the first direction X, as an example. However, without being limited to such a configuration, for example, as shown in FIG. 7 or FIG. Alternatively, for example, as shown in FIG. 9, the engagement between the outer peripheral wall 33 and the ridge portion 27 may be external fitting. Alternatively, for example, as shown in FIG. 10, the engagement between the outer peripheral wall 33 and the ridge portion 27 may be internal and external fitting (internal fitting and external fitting). With these configurations, the inner container 3 can be stably fixed to the main container 2 . Therefore, it is possible to prevent the inner container 3 from moving inside the packaging container 1 in which an object such as food is stored is being transported.

(5) In the above embodiment, the configuration in which the inner container 3 is formed in a raised bottom shape having the bottom portion 31 , the inner peripheral wall 32 and the outer peripheral wall 33 has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. may be used. In such a case, for example, an engaging groove portion 38 may be provided in the central portion of the bottom portion 31 of the inner container 3, and the engaging groove portion 38 may be engaged with the ridge portion 27 (an example of the engaged portion M). good. In this case, the locking portion L is configured by the locking groove portion 38 . Forming the protrusion 27 and the locking groove 38 in an inverted trapezoidal shape as in the illustrated example is preferable because the inner container 3 can be stably fixed to the main container 2 . The peripheral portion of the bottom portion 31 of the inner container 3 may be engaged with the ridge portion 27 (not shown).

(6) In the above embodiment, the engagement between the outer peripheral wall 33 of the inner container 3 and the guide wall 23 of the main container 2 is simply abutment in the second direction Y, as an example. However, without being limited to such a configuration, the engagement between the outer peripheral wall 33 and the guide wall 23 may be internal fitting as shown in FIG. 12 or 13, for example. For example, the guide wall 23 as the engaged portion F is formed in a reverse tapered shape toward the central portion of the main container 2 as it goes upward, and the engaging portion E provided at the lower end portion of the outer peripheral wall 33 is They may be formed in a shape that expands outward as they go downward, and they may be fitted together.

(7) In the above-described embodiment, the locking portion L is formed by the second edge portion 34B of the outer peripheral wall 33 of the inner container 3, and the locked portion is formed by the protrusion 27 formed on the upper surface of the main body bottom portion 21. An example in which M is constructed has been described. However, without being limited to such a configuration, for example, as shown in FIGS. A projecting portion 28 may be provided, and the engaging portion M may be configured by the engaging projecting portion 28 . In this case, the support flange 34 of the outer peripheral wall 33 of the inner container 3 is provided with a locking recess 35 that accommodates the locking projection 28 in a locked state, and the locking recess 35 constitutes the locking portion L. It would be nice to be. In this manner, the engaged portion F and the engaged portion M are provided at the same location (the guide wall 23) in the main container 2, and the engaging portion E and the locking portion L are provided at the same location (the guide wall 23) in the inner container 3. It may be provided on the first edge portion 34A). In such an example, an ordinary bowl-shaped inner container 3 as shown in FIG. 11 may be used.

(8) In the above embodiment, since the inner container 3 and the main container 2 are slidable, the engaging portion E of the inner container 3 engages the engaged portion F of the main container 2 at a plurality of positions. A possible configuration has been described as an example. However, without being limited to such a configuration, the engaging portion E of the inner container 3 may be engaged with the engaged portion F of the main container 2 at a plurality of pinpoint positions. An example of such a configuration is shown in FIG. As shown in this figure, the main container 2 is provided with a plurality of protrusions 24 protruding upward from the main body bottom 21 in a predetermined arrangement (for example, in a grid pattern or in a zigzag pattern). An engagement portion F is configured. The inner container 3 is formed in a raised bottom shape having a bottom portion 31 , an inner peripheral wall 32 and an outer peripheral wall 33 , and the inner surface of the outer peripheral wall 33 constitutes an engaging portion E. The inner container 3 is selected from a plurality of protrusions 24 and has a predetermined shape (a shape corresponding to the plan view shape of the inner container 3). inner surface) is fitted on the outside, it can be fixed movably and stably at a plurality of positions. With such a configuration, depending on the size of the inner container 3, it is also possible to move the inner container 3 in both the first direction X and the second direction Y (see FIG. 16). The outer surface of the outer peripheral wall 33 of the inner container 3 may constitute the engaging portion E. In this case, the inner container 3 is provided with the engaging portion E ( By fitting the outer surface of the outer peripheral wall 33 inside, it becomes possible to fix it movably and stably at a plurality of positions. In these cases, the inner container 3 may be such that the engaging portion E simply abuts against a combination of a plurality of projecting portions 24 having a predetermined shape (see FIG. 4).

(9) In the above example, it is also possible to use a normal bowl-shaped inner container 3 as shown in FIG. In this case, the main container 2 is provided with a plurality of downward recesses that are recessed downward from the main body bottom 21 in a predetermined arrangement (for example, a grid pattern or a zigzag pattern), and the downward recesses constitute the engaged portion F. be done. Further, the inner container 3 is provided with one or a plurality of downward protrusions that protrude downward from the bottom portion 31, and the downward protrusions constitute the engaging portions E. As shown in FIG. The inner container 3 has a plurality of downwardly facing recesses selected from a plurality of downwardly facing recesses and having a predetermined shape. can be fixed movably and stably at the position of The main container 2 may be provided with an upward projection (an example of the engaged portion F) and the inner container 3 may be provided with an upward recess (an example of the engaging portion E). By fitting each of the upward recesses to a combination of a plurality of upward protrusions (may be one) having a predetermined shape, it is possible to movably and stably fix at a plurality of positions.

(10) In the above embodiment, the main container 2 and the lid 4 are elliptical in plan view, and the inner container 3 is rectangular in plan view. However, without being limited to such a configuration, the main container 2 and the lid 4 are formed in other shapes such as a circular shape, a rectangular shape, or a polygonal shape (eg, hexagonal, octagonal, etc.) in plan view. May be. The inner container 3 may also be formed in other shapes such as a circular shape, an elliptical shape, or a polygonal shape in plan view. When a non-rectangular inner container 3 is used (see FIG. 17), if a main container 2 (or a similar container 2) having a plurality of protrusions 24 as the engaged portion F is used, various shapes can be obtained. It is also suitable for the middle container 3 .

(11) In the above embodiment, the packaging container 1 is provided with only one inner container 3 as an example. However, without being limited to such a configuration, the number of inner containers 3 may be arbitrary as long as each is guaranteed to be movable within a single housing portion C of the main container 2 .

(12) In the above embodiment, the main container 2 has been described mainly assuming a configuration in which there is only one storage portion C. As shown in FIG. However, without being limited to such a configuration, the main container 2 may have a plurality of storage portions C partitioned by fixed partition walls. In this case, in at least one of the plurality of storage portions C, it is preferable that the inner container 3 can be installed at a plurality of positions within the storage portion C.

(13) In the above embodiment, the upper end of the inner container 3 and the inner surface of the lid 4 may contact each other when the lid 4 is attached to the main container 2 . In this way, even if the outer peripheral wall 33 of the inner container 3 and the ridges 27 of the main container 2 are simply in contact with each other, the inner container 1 will remain within the packaging container 1 while the packaging container 1 is being transported. 3 can be prevented from moving. In addition, the inner container 3 supports the lid 4 from below, so that the lid 4 can be prevented from being bent downward when the plurality of packaging containers 1 are vertically stacked.

(14) In the above embodiment, an inner lid that covers the inner container 3 may be provided separately from the lid body 4 .

(15) In the above embodiment, the packaging container 1 for containing food was described as an example. However, without being limited to such a configuration, the packaging container 1 can be used for the purpose of accommodating any object other than food.

(16) The configurations disclosed in each of the above-described embodiments (including the above-described embodiments and other embodiments; the same applies hereinafter) are applied in combination with the configurations disclosed in other embodiments unless there is a contradiction. It is also possible to Regarding other configurations, the embodiments disclosed in this specification are examples in all respects, and can be modified as appropriate without departing from the scope of the present disclosure.

1 Packaging container 2 Main container 3 Inner container 21 Main body bottom 22 Side wall 23 Guide wall 24 Projection 27 Projection 28 Locking projection 31 Bottom 32 Inner peripheral wall 33 Outer peripheral wall 34A First edge 34B Second edge Part 35 Lock recess 37 Peripheral wall 38 Lock groove C Accommodating part E Engaging part F Engaged part L Locking part M Locked part X First direction (sliding direction)
Y second direction (direction intersecting the sliding direction)

Claims (6)

A packaging container comprising a main container and a middle container installed in the main container,
The main container has an engaged portion with which the inner container engages on an inner surface facing a storage portion that stores an object to be stored,
The inner container has a bottom portion, an inner peripheral wall extending upward from an outer edge of the bottom portion, an outer peripheral wall extending downward from an upper end portion of the inner peripheral wall beyond a position of the bottom portion, and the engaged portion. having an engaging portion that engages with
The engaging portion of the inner container is slidable along the inner surface facing the receiving portion in a state of being engaged with the engaged portion of the main container, so that the single containing portion of the main container provided to be engageable with the engaged portion at a plurality of positions within the portion,
The main container further includes locked portions for locking the inner container at a plurality of positions in the sliding direction of the inner container on the inner surface facing the accommodating portion,
The locked portion is composed of three or more ridges extending in a direction intersecting the sliding direction,
A packaging container, wherein a lower end portion of the outer peripheral wall is provided so as to engage with two of the ridges located at different positions in the sliding direction. 2. The packaging container according to claim 1, wherein the engagement between the outer peripheral wall and the ridge portion is inner fitting, outer fitting, or inner/outer fitting. A packaging container comprising a main container and a middle container installed in the main container,
The main container has a main body bottom portion and a side wall portion surrounding the main body bottom portion, and has an engaged portion with which the inner container engages on an inner surface facing a storage portion for storing an object to be stored. death,
The inner container has a bottom portion, an inner peripheral wall extending upward from an outer edge of the bottom portion, an outer peripheral wall extending downward from an upper end portion of the inner peripheral wall beyond a position of the bottom portion, and the engaged portion. having an engaging portion that engages with
The engaging portion of the inner container is slidable along the inner surface facing the receiving portion in a state of being engaged with the engaged portion of the main container, so that the single containing portion of the main container provided to be engageable with the engaged portion at a plurality of positions within the portion,
The main container further includes locked portions for locking the inner container at a plurality of positions in the sliding direction of the inner container on the inner surface facing the accommodating portion,
the locked portion is configured by a locking convex portion that bulges from the side wall portion toward the central portion of the main container,
A packaging container, wherein the outer peripheral wall is provided with locking recesses that are accommodated in a state in which the locking projections are locked. The main container has a main body bottom and a side wall surrounding the main body bottom,
2. From claim 1, wherein the engaged portion is provided on the inner surface of the boundary portion between the side wall portion and the bottom portion of the main body.3The packaging container according to any one of. The engaged portion is formed in a reverse tapered shape toward the central portion side of the main container as it goes upward,
5. The packaging container according to claim 4 , wherein the engaging portion is provided at the lower end portion of the outer peripheral wall, and the engaging portion is formed in a shape that expands outward toward the bottom. A packaging container comprising a main container and a middle container installed in the main container,
The main container has a main body bottom portion and a side wall portion surrounding the main body bottom portion, and has an engaged portion with which the inner container engages on an inner surface facing a storage portion for storing an object to be stored. death,
The inner container has a bottom and a peripheral wall extending upward from the outer edge of the bottom, and has an engaging portion that engages with the engaged portion,
In a state in which the inner container is installed in the main container, the outer edge of the inner container fits inside the inner edge of the side wall, and the height of the upper end of the peripheral wall is higher than the height of the upper end of the side wall. high,
The engaging portion of the inner container is slidable along the inner surface facing the receiving portion in a state of being engaged with the engaged portion of the main container, so that the single containing portion of the main container provided to be engageable with the engaged portion at a plurality of positions within the portion,
The main container further includes locked portions for locking the inner container at a plurality of positions in the sliding direction of the inner container on the inner surface facing the accommodating portion,
A locking portion that locks to the locked portion is provided in the central portion, the peripheral portion, or the peripheral wall of the bottom portion.,
The engaged portion is provided on the inner surface of the boundary portion between the side wall portion and the main body bottom portion,
The engaged portion is formed in a reverse tapered shape toward the central portion side of the main container as it goes upward,
The engaging portion is provided on the outer surface of the peripheral wall, and the engaging portion is formed in a shape that expands outward toward the bottom. packaging container.

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