JP2024045882A - Packaging container with inner container - Google Patents

Abstract

[Problem] To provide a packaging container that can accommodate changes in the capacity of an inner container with a single container body. [Solution] A packaging container in which an inner container is accommodated within the container body and closed with a lid, in which the inner container is placed on the bottom surface of the container body by engagement between protrusions and recesses. At least two body-side engagement parts for engagement with the inner container are provided on the bottom surface of the container body, at unequal distances from the center of the bottom surface and in asymmetrical positions. This makes it possible to selectively place inner containers of different capacities among the body-side engagement parts. Also, by providing the bottom surface of the container body with an upward protrusion that can abut against the side wall of the inner container, the inner container can be fixed in a set position without moving in a planar direction. [Selected Figure] Figure 1

Description

The present invention relates to a packaging container equipped with a medium container, and more particularly to a packaging container that is capable of accommodating medium containers of different capacities in a single container body by changing the placement pattern.

When several types of food ingredients are sold in a single container at convenience stores, supermarkets, etc., in order to prevent the ingredients from mixing together, an inner container (sometimes called an "inner plate" or "small container") is prepared and housed in the main container (a nested packaging form (three-point container)) is adopted, as shown in Patent Documents 1 to 3, for example. With a packaging container equipped with such an inner container, it is possible to prevent contact between the ingredients more reliably than if partitions were provided in the main container and ingredients were housed in each compartment.

In particular, in the case of containers that have an inner lid for the inner container in addition to the lid that closes the container body (four-piece containers), even if the inner container contains food with a lot of juice, it is possible to prevent the inside of the container body from becoming soaked in juice due to juice leakage.

JP2017-222366A JP 2018-079973 A JP 2018-193099 A

In the case of curry rice, the curry roux is stored in the medium container, and the rice is placed in the surplus space of the container body. In this case, it is necessary to use large and small containers depending on the amount of curry roux (medium or large). Another storage method is to store the main dish in the main container and the side dishes in the medium container, and if you are selling by weight through face-to-face sales, the buyer may ask for more side dishes than the main dish. Depending on demand, so-called large-sized medium containers may also be prepared.

As described above, what and how much can be stored in the inner container varies widely, but in conventional three-piece and four-piece containers, including the packaging containers disclosed in Patent Documents 1 to 3, the layout of the inner container relative to the container body is fixed, and the capacity of both the container body and the inner container is basically constant. Therefore, when using inner containers with different capacities, it is necessary to prepare individual container bodies that match them, and therefore it becomes necessary to prepare lids that correspond to the container bodies.

However, preparing many different types of container bodies and lids not only increases manufacturing costs, but also increases the burden of securing storage space in the back yard and inventory management.

The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a packaging container that can accommodate changes in the capacity of the inner container using a single container body.

In order to achieve the above-mentioned object, the present invention provides a packaging container in which an inner container is housed in a container main body and at least the container main body is closed with a lid, wherein the inner container has a bottom surface of the container main body. The bottom surface of the container body is provided with at least two body-side engaging portions that engage the concave and convex portions at unequal distances and asymmetric positions from the center of the bottom surface, and the plurality of A method was used in which the medium container could be placed selectively from among the main body side engaging parts.

For example, by providing two main body side engaging parts at two asymmetrical positions near and far from the center of the bottom surface of the container main body, the main body side engaging part closer to the center of the bottom surface has a larger space between it and the side wall of the container main body, allowing a large-capacity inner container with a relatively large bottom area to be placed on it, while the main body side engaging part farther from the center of the bottom surface allows a small-capacity inner container with a smaller bottom area to be placed on it. Looking at this from the other side, in the former case, the surplus space in the container main body excluding the space for placing the inner container will be smaller than in the latter case, and the volume of the contents to be stored in the surplus space can be adjusted between the two.

The number of main body side engaging parts may be three or more, and the types (sizes) of medium containers to which the present invention can be applied can be increased by that number.

However, the type of the medium container does not necessarily have to match the number of the main body side engaging parts, and it is not excluded that the same medium container may be placed in a different layout. Even if the medium container is the same, changing the placement layout on the container body changes the size of the storage space (excess space mentioned above) on the container body side, and adjusts the capacity of the contents on the container body side. Because things are possible. What is required in the present invention is to adjust the capacity of each container body and medium container by changing the placement layout of the middle container for each main body side engaging part with respect to a single container body. It is in.

In addition, it is preferable that the outer side wall surface of the inner container placed on the bottom surface of the container body and the inner surface of the side wall of the container body are in contact with each other. In addition to being fixed on the bottom surface of the container body by the convex-concave engagement, the inner and outer surfaces of the side walls of the inner and outer containers come into contact with each other, which more reliably prevents the inner container from shifting (displacement in the plane direction). This is because it can be done.

Furthermore, it is preferable to provide an upward protrusion on the bottom surface of the container body that abuts against the outer surface of the side wall of the inner container placed on the bottom surface. In this case, too, the protrusion prevents the inner container from shifting. In particular, by using this in combination with the above-mentioned abutment with the inner surface of the side wall of the container body, the effect of preventing shifting is further enhanced, and the protrusion also prevents the inner container from tipping over.

Furthermore, when the above-mentioned convex portion is provided, regarding the uneven engagement between the container main body and the inner container, the main body side engaging portion projects upwardly from a part of the bottom surface of the container main body, while the main body side engaging portion The engaged portion on the inner container side that engages with the projections and depressions is formed by recessing a part of the bottom surface of the inner container inwardly, and at least one of the engaging portions on the main body side has a height h0 and the engaged portion on the inner container side. When the joint portion has a depth d and the convex portion has a height h1, it is preferable that h0≦d<h1 is satisfied. Although the convex part is not a part that engages with the bottom surface of the medium container, by setting the height of the convex part to the maximum in this way, the effect of shifting the position of the medium container is increased, and it is also possible to place the medium container on it. Even at this stage, the inner container can be guided to the concave-convex engaging position by the convex portion.

In addition, in the present invention, it is essential to close the container body with a lid after storing the medium container, and it is preferable to close the medium container independently with a dedicated inner lid. If the inner container can be closed at the same time with the lid, the inner lid can be omitted.

According to the present invention, capacity can be easily adjusted by placing medium containers in different layouts on a single container body, and since the container body and lid are shared, manufacturing costs and plastic consumption can be reduced. There is no need to increase the amount of space, and on-site management of backyards and other areas becomes easier.

An exploded perspective view of the entire packaging container according to an embodiment of the present invention Same, plan view of the container body FIG. 2 is a cross-sectional view of the container body and two inner containers. FIG. 2 is a plan view showing the placement pattern of the inner container. Cross-sectional view of each mounting pattern Partially enlarged cross-sectional view Same, explanatory diagram showing dimensions

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a packaging container according to an embodiment of the present invention, in which 1 is a container body, 2 and 3 are inner containers, 4 is a lid corresponding to the container body 1, and 5 and 3 are inner containers. 6 is an inner lid corresponding to each of the inner containers 2 and 3. This packaging container belongs to a so-called four-point container in which not only the container body 1 but also the inner container is provided with a lid (inner lids 5 and 6). In the case of this embodiment, the medium containers 2 and 3 are provided with two types having different capacities (sizes), and one medium container is selected from these according to the type and capacity of the contents and is placed in the container main body 1. accommodate.

The inner containers 2 and 3 each have a predetermined storage position relative to the container body 1. In this embodiment, the container body 1 has a horizontally elongated shape in a plan view, while the inner containers 2 and 3 are both perfectly circular in a plan view. The inner container 2, which has a larger capacity, is stored toward the left side of the container body 1 in the figure, and the inner container 3, which has a smaller capacity, is stored toward the right side of the container body 1 in the figure. By storing the inner containers 2 and 3 in predetermined positions in this way, each of the inner containers 2 and 3 can be fixed to the container body 1 without any rattling or misalignment.

In the present invention, the inner containers 2 and 3 are placed on the bottom surface of the container body 1 by a concave-convex engagement as a means for fixing the inner containers 2 and 3 in the container body 1. That is, as shown in FIG. 2, the body side engaging parts 1b and 1c are formed to protrude upward (towards the storage space) at two places on the left and right of the bottom surface 1a of the container body 1, while the bottom surfaces 2a and 3a of the inner containers 2 and 3 have engaged parts 2b and 3b corresponding to the body side engaging parts 1b and 1c, which are concave toward the inside (towards the storage space). Therefore, when the inner containers 2 and 3 are accommodated in the container body 1, the engaged parts 2b and 3b are engaged with the body side engaging parts 1b and 1c in a concave-convex manner, thereby preventing the inner containers 2 and 3 from shifting in the planar direction (horizontal direction). However, this concave-convex relationship may be reversed, and the body side engaging parts may be concave and the engaged parts may be convex.

The main body side engaging parts 1b and 1c and the engaged parts 2b and 3b are both perfectly circular in plan view, and the engaged parts 2b and 3b are formed concentrically with the bottom surfaces 2a and 3a of the inner containers 2 and 3, while the main body side engaging parts 1b and 1c are formed in asymmetrical positions. Specifically, as shown in Figure 3, the center points C1 and C2 of both main body side engaging parts 1b and 1c are located on the front-to-back bisector L that passes through the center point C0 of the bottom surface 1a of the container main body 1, but the distance from the center point C0 is asymmetric, with L1 of C1 being shorter than L2 of C2.

By making the distances from the center point C0 of the engaged portions 2b, 3b different in this way, the distance between the side walls 1d, 1e on the left and right short sides of the container body 1 is larger on the left side and smaller on the right side depending on the size of the inner containers 2, 3. Therefore, as shown in Figure 4, in both the placement pattern (a) for the large-capacity inner container 3 and the placement pattern (b) for the small-capacity inner container 4, the inner containers 2, 3 can be snugly accommodated in the container body 1 along the side walls 1d, 1e.

In this regard, in this embodiment, the side walls 1d and 1e of the container body 1 are used to actively restrict the planar displacement of the inner containers 2 and 3. That is, as shown in FIGS. 5 and 6, when the middle containers 2 and 3 are stored based on the placement patterns (a) and (b) in FIG.・It is designed to make contact with 1e on the inside and outside.

Furthermore, in this embodiment, a convex portion 1f protrudes upward near the center of the bottom surface 1a of the container body 1, separate from the main body side engaging portions 1b and 1c. This convex portion 1f (part of the peripheral wall) also abuts against the outer surfaces of the side walls 2c and 3c of the inner containers 2 and 3, thereby preventing the contained inner containers 2 and 3 from rattling. Note that this convex portion 1f is not connected to the entire periphery of the side wall of the container body 1, and is floating island-like. In that sense, it has a different configuration from conventional partition walls, and the size, shape, and number can be easily set during manufacturing.

In this embodiment, the convex portion 1f is provided at one location on the bottom surface of the container body 1, so that it comes into contact with the outer surfaces of the side walls 2c and 3c of the middle containers 2 and 3 in both the placement pattern (a) and the placement pattern (b). The position and size of the convex portion 1f are set. In this way, it is reasonable to use one convex portion 1f to prevent the inner containers 2 and 3 from rattling, and it is also advantageous in terms of manufacturing. However, the position, size, shape, and number of the convex portions 1f are not limited to those in this embodiment, and two or more convex portions 1f may be formed. Further, it is not necessary to use both the contact with the side wall of the container body 1 and the contact with the convex portion 1f, and each may be used alone to prevent the inner containers 2 and 3 from shifting. Furthermore, when the middle containers 2 and 3 are placed, either one of the side walls 2c or 3c or the convex portion 1f of the container body 1 comes into contact with the middle containers 2 or 3 or the inner lids 5 or 6. Also, it is possible to prevent the middle containers 2 and 3 from shifting their positions. In this case, a gap will be created between the two parts that are not in contact with each other, but this gap is preferably set to 2 mm or less, more preferably 1.5 mm or less, as an example. This is because the displacement of the middle containers 2 and 3 toward the non-contact side can be suppressed.

In this respect, if the height of the convex portion 1f is increased, the contact area with the side walls 2c and 3c of the inner container 2 and 3 will be increased accordingly, and the rattle prevention effect can be improved. If the height is increased in the planar direction, the storage space for the contents will decrease, so it is more advantageous to increase the height of the convex portion 1f to expand the contact area. And, although the height of the convex portion 1f is not limited numerically, as shown in FIG. 7, if the height of the convex portion 1f is h1, the height of one of the main body side engaging parts (here, the left main body side engaging part 1b) is h0, and the depth of the corresponding engaged part (here, the engaged part 2b of the inner container 2) is d, if h0≦d, the inner container can be stored without floating up from the bottom surface of the container body. Furthermore, if d<h1, i.e., h0<h1, the convex portion can be reliably abutted against the side wall of the inner container stored in the container body.

Next, some other embodiments will be described.
(1) About the part of the medium container that comes into contact with the side wall of the container body In the above embodiment, the container body and the side wall are brought into contact with each other when storing the medium container, but the part that comes into contact with the side wall of the container body is , the edge 10 of the inner container shown in FIG. 1, or the edge 11 of the inner lid.

(2) About the contact portion of the medium container with the convex part In the above embodiment, the side wall of the medium container is brought into contact with the convex part when the medium container is stored, but if the convex part is made high enough, The illustrated edge 10 of the inner container or the edge 11 of the inner lid can be brought into contact with the protrusion.

(3) Marks on the main body side engaging part If the main body side engaging part has the same shape in plan view, mark the round shape 12 and star shape 13 on the top surface as shown in Figure 1. By forming reliefs of different shapes on the inner container, the correspondence between the inner container and the main body-side engaging portion becomes clear, and the work of storing the inner container in the backyard can be carried out efficiently. Note that the marks attached to each main body side engaging part (medium container placement pattern) are not limited to round or star-shaped reliefs; furthermore, marks attached to each main body side engaging part (medium container placement pattern) may be relief marks ( It is not limited to the relief (relief), but may also include other uneven shapes or coloring. In short, it is sufficient as long as it is a mark that allows the operator placing the medium container to identify each of the plurality of main body side engaging parts.

(4) About the form of concave-convex engagement between the main body side engaging part and the engaged part In the above embodiment, both main body side engaging parts are circular in plan view, but even if some or all of the multiple main body side engaging parts have different external shapes, such as one being rectangular in plan view, this can be used as a mark to clarify the correspondence between the inner container and the main body side engaging part. Accordingly, by matching the external shape of the engaged part for each inner container with the main body side engaging part, the inner container can be accommodated in that position only when the engaged part and the main body side engaging part are in a corresponding relationship (their external shapes match), and erroneous operation can be prevented.

1 Container body 1a Bottom surfaces 1b and 1c Main body side engaging portions 1d and 1e Left and right short side walls 1f Convex portion 2 Medium container (large capacity)
2a Bottom surface 2b Engaged portion 2c Side wall 3 Medium container (small capacity)
3a Bottom surface 3b Engaged portion 3c Side wall 4 Lid bodies 5 and 6 Inner lid

Claims (4)

A packaging container that houses an intermediate container in a container body and closes at least the container body with a lid, wherein the intermediate container is placed on the bottom surface of the container body by a concave-convex engagement, and the container The bottom surface of the main body is provided with at least two main body-side engaging portions that engage the concave and convex portions at unequal distances and asymmetrical positions from the center of the bottom surface, and the plurality of main body-side engaging portions are selectively disposed from among the plurality of main body-side engaging portions. A packaging container characterized by being able to hold a medium container. The packaging container according to claim 1, in which the outer sidewall surface of the inner container placed on the bottom surface of the container body and the inner sidewall surface of the container body abut against each other. 3. The packaging container according to claim 1, wherein the bottom surface of the container body is further provided with an upward convex portion that abuts the outer surface of the side wall of the medium container placed on the bottom surface. The packaging container according to claim 3, wherein each of the main body side engaging parts protrudes upward from a part of the bottom surface of the container main body, while the engaged part of the inner container side that engages with the main body side engaging parts is formed by inwardly recessing a part of the bottom surface of the inner container, and when at least one of the main body side engaging parts has a height h0, the engaged part has a depth d, and the protruding part has a height h1, the relationship h0≦d<h1 is satisfied.

Images