JP7437155B2 - food packaging containers - Google Patents

Description

The present invention relates to a food container mainly for bento lunches, which has a deep bottom storage part and a shallow bottom storage part and has a rectangular shape on a plane, and is displayed and sold in a stacked manner at, for example, supermarkets, convenience stores, bento delicatessen stores, etc. To provide food packaging containers which can be stacked in a vertically aligned state without difficulty and without causing positional deviation even if the stacking direction is reversed.

Traditionally, in supermarkets, convenience stores, boxed lunch stores, etc., various cooked side dishes, boxed lunches, and the like have traditionally been stored in designated food packaging containers, and these food packaging containers have been stacked in multiple tiers and displayed for sale. There is. For example, there is a lunch container shown in Patent Document 1, in which protrusions are provided around the bottom wall of the container body or at the four corners, and recesses are provided around the top wall of the lid body or at the four corners. The bento containers themselves are stacked by fitting the protrusions and the recesses, and these fittings allow them to be stacked tightly without misalignment.

However, in this method of stacking lunch containers, if the bottom wall of the container body and the top wall of the lid have approximately the same shape and size, the positions of the protrusions and recesses will be approximately the same in the stacking direction. This is possible because it is installed in a certain position.

On the other hand, a deep-bottomed storage recess for storing the main food such as cooked rice, and a shallow-bottomed storage recess for storing side foods such as pickles, meat, vegetables, sauce bags, etc. are arranged in parallel. A bento container is provided which is made up of a container main body having a substantially rectangular shape on a plane and a lid body that covers the entire container main body. are arranged and formed so as to be offset to one side. In order to stack such lunch containers, as shown in Patent Document 1, an uneven portion is formed between the peripheral edge of the bottom wall of the deep storage recess of the container body and the lid body so that they fit together. It turns out. In this case, the uneven part formed on the lid body will be offset to one side of the lid body itself so as to correspond to the position of the deep storage recess, so when stacking many lunch boxes and containers, It is necessary to match the directions, which is troublesome.

In addition, in such a bento container that is approximately rectangular in plan, an outer frame material that surrounds the outer periphery of the container body is attached to the container body, and the lower edge of this outer frame material is fitted to the periphery of the upper part of the lid body. A lunch container with a double structure has also been proposed. Furthermore, a hakama-like frame part that widens toward the end and surrounds these storage recesses is integrally formed from the upper periphery of the container main body having a deep-bottomed storage recess and a shallow-bottomed storage recess, and this frame is placed over the lid body. Lunch containers that fit together have also been proposed.

Utility Model Publication No. 59-38231

However, in order to stack lunch containers consisting of container bodies each having a deep bottom storage recess and a shallow bottom storage recess as described above, the outer frame material is attached to the container main body as a separate member from the container main body, so the number of parts increases. There are a lot of them, and their assembly is troublesome. In addition, when a hakama-like frame part that widens toward the end is integrally formed with the container body, it is necessary to form the hakama-like frame part high enough, making it difficult to hold the container body with fingers when eating, etc. It's difficult.

Therefore, the present invention was created in view of the existing circumstances as described above, and is a lunch container including a container body having a deep storage recess and a shallow storage recess and having a rectangular shape in plan. For example, when other bento containers are stacked on top of the lid that is placed on the container body for display and sale, they can be stacked neatly in an aligned state even if the stacking direction is completely reversed, and they do not collapse when stacked. To provide a food packaging container which can maintain a stacked state without any problems.

In order to solve the above-mentioned problems, the present invention includes a container main body 1 which has a deep storage recess 2 and a shallow storage recess 3 arranged in parallel and has a substantially rectangular shape when viewed from above, and an opening of the container main body 1. In the food packaging container, the container body 1 is provided with edge legs 6 projecting downward from the bottom wall around the bottom wall of the deep storage recess 2 of the container body 1. 10 is provided with a storage cover part 12 that bulges upward and covers the opening of the container body 1 and fits inside the edge leg part 6, and this storage cover part 12 covers the edge leg of the deep storage recess 2. When fitting into the inside of the container body 1 and the lid body 10, the side along the longitudinal direction of the container body 1 and the lid body 10 between the fitting surfaces of the storage cover part 12 and the edge leg part 6 in the container body 1 and the lid body 10, respectively. It is characterized by the provision of a positioning means 20 consisting of a positioning protrusion 21 and a positioning recess 22 formed at the center of the edge.
The positioning protrusion 21 and the positioning recess 22 of the positioning means 20 can be arranged at a contact area between the upper part 14 of the two-stage storage cover part 12 and the edge leg part 6.
The positioning protrusion 21 can be formed to protrude outward from the storage cover part 12, and the positioning recess 22 can be formed in the shape of a depression in the edge leg part 6.
The edge leg portion 6 can be formed by bulging downward from the bottom wall of the deep storage recess 2 at the periphery of the bottom wall excluding one edge portion on the shallow storage recess 3 side. .
The positioning recess 22 can be formed at a central portion along the longitudinal direction of the edge leg portion 6 so as not to be smaller than the width of the positioning protrusion 21 . The storage recess 3 may be formed to be elongated toward the opposite side of the shallow storage recess 3.
The peripheral edge surface of the storage cover part 12 of the lid body 10 can be configured to abut on the inner edge side surface of the edge leg part 6 of the container body 1.
The positioning means 20 is the upper part 14 of the storage cover part 12 having a two-stage configuration formed to bulge upward on the lid body 10, and the positioning means 20 is located at the center of the side edge along the longitudinal direction of the lid body 10 on the outside of the storage cover part 12. a positioning protrusion 21 formed to protrude toward the side, and an edge formed to bulge downward from the bottom wall of the bottom wall of the deep storage recess 2 of the container body 1, excluding the edge portion on the shallow storage recess 3 side. The leg portion 6 may include a positioning recess 22 that includes at least a central portion along the longitudinal direction of the container body 1 and is recessed toward the opposite side of the shallow storage recess 3.

In the food packaging container according to the present invention configured as described above, the container body 1, which has a deep storage recess 2 and a shallow storage recess 3 and has a substantially rectangular shape in plan, is covered with a lid 10. When the bottom wall of the deep-bottomed storage recess 2 is placed on the lid 10 when stacking food packaging containers made of The alignment means 20 allow stacking in alignment even if their orientations are reversed.
Further, the positioning means 20 allows the containers to be stacked in multiple stages by fitting the positioning protrusion 21 provided on the lid 10 and the positioning recess 22 provided on the bottom wall of the deep storage recess 2 of the container body 1.
The positioning protrusion 21 is provided on the side edge of the upper part 14 of the two-stage storage cover 12 that covers the openings of the deep and shallow storage recesses 2 and 3 of the container body 1. By being provided on the edge leg 6 formed on the periphery of the bottom wall of the deep storage recess 2, when the positioning recess 22 and the positioning recess 22 are fitted together, the edge leg 6 is provided when stacking. Coupled with the fact that the upper part 14 fits inside, no positional shift occurs.
The positioning recess 22 of the positioning means 20 has a width not smaller than the width of the positioning protrusion 21 at the central portion along the longitudinal direction of the edge leg 6, or at least includes the central portion, and has a shallow storage area in the container body 1. By being elongated toward the opposite side of the recess 3, it ensures a secure fit with the positioning protrusion 21 at the center in the longitudinal direction of the lid 10, and aligns the orientation when stacking the food packaging containers themselves. To efficiently perform display work, for example, by stacking the sheets in an aligned state even in reverse directions without causing any problems.

Since the present invention is configured as described above, when food packaging containers for lunch boxes having deep and shallow storage recesses 2 and 3 and having a rectangular shape in plan are stacked, for example, at the time of display and sale, When the bottom wall of the deep storage recess 2 and the storage cover 12 of the lid 10 are fitted together, regardless of the offset arrangement of the deep storage recess 2, the center portion along the longitudinal direction of the container body 1 and the lid 10 Due to the positioning means 20 formed in , it is possible to stack the sheets in an aligned state even if the directions are reversed.

That is, in the present invention, the storage cover 12 covering the opening of the container body 1 is fitted inside the edge legs 6 provided on the bottom wall of the deep storage recess 2 of the container body 1, and the container is closed. A positioning protrusion formed at the center of the side edge along the longitudinal direction of the container body 1 and the lid 10 between the fitting surfaces of the storage cover part 12 and the edge leg part 6 in the main body 1 and the lid 10, respectively. 21. This is because the positioning means 20 consisting of the positioning recess 22 is provided. As a result, when stacking food packaging containers, the container body and lid can be fitted and positioned at the longitudinal center of the food packaging container itself, and the food packaging containers can be stacked in an aligned state without aligning the orientation of the food packaging containers themselves. For example, display work can be performed efficiently.

Moreover, the upper part 14 of the two-stage storage cover part 12 in the lid body 10 is replaced with the bottom wall of the deep storage recess 2 of the container body 1 except for one edge part on the side of the shallow storage recess 3. The circumferential surface of the storage cover 12 is in contact with the inner side surface of the edge leg 6 of the container body 1 so as to fit into the inner side of the edge leg 6 which is formed to bulge downward from the bottom wall at the circumferential edge of the container body 1. Coupled with the fact that the positioning protrusion 21 is fitted into the positioning recess 22 in an abutting manner, the upper food packaging containers do not shift relative to the lower food packaging containers even after being stacked, and the stacked state is maintained. can be maintained.

Furthermore, since the lid 10 that covers the container body 1 is provided as a storage cover portion 12 that covers the entire openings of the deep and shallow storage recesses 2 and 3, when the lid 10 is placed over the container body 1, However, the container body 1 can be closed without having to align its orientation, which greatly helps reduce the workload.

It should be noted that the reference numerals added in each of the sections ``Means for Solving the Problems'' and ``Effects of the Invention'' are added to facilitate reference to the parts indicating each component described in the drawings. The present invention is not limited to the structure, shape, etc. shown by these descriptions or the symbols in the drawings.

FIG. 2 is a perspective view of one embodiment of the present invention when stacked. It is a top view of a lid body similarly. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2 in a stacked state. It is a side view when similarly stacking up in multiple stages.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 shown in the drawings is a container main body, and the container main body 1 is deep enough to store, for example, boiled rice as a main food. It has a deep bottom storage recess 2 and a shallow storage recess 3 for storing side dishes and other side foods. A fitting protrusion 4 formed in a bank shape is provided so as to be forcibly fitted by covering the opening.

The deep storage recess 2 of the container body 1 has a slightly rectangular shape when viewed from above, and a shallow storage recess 3 is provided at one longitudinal end of the deep storage recess 2 with a partition wall 5 in between. The container body 1 itself and the entirety of the storage recesses 2 and 3 are formed in a substantially rectangular shape when viewed from above.

On the bottom wall of the deep-bottomed storage recess 2, an edge leg 6 that bulges out downward from the bottom wall is formed at the periphery of the bottom wall except for one end edge on the shallow-bottomed storage recess 3 side. The inside of the leg portion 6 is formed into a substantially flat surface. Note that the edge leg portion 6 has a groove shape at the periphery of the deep-bottom storage recess 2 when viewed from inside the deep-bottom storage recess 2, and has the advantage of reinforcing the deep-bottom storage recess 2 itself. As shown in the figure, a reinforcing protrusion may be provided on the edge leg 6 itself, and two parallel narrow grooves may be provided along the inside of the edge leg 6 to further enhance the bottom wall of the deep storage recess 2. making it strong.

The lid 10 that is placed over the opening of the container body 1 corresponds to the size of the entire opening including the deep storage recess 2 and the shallow storage recess 3 so as to cover the entire opening of the container body 1. Like the container body 1, it has a substantially rectangular shape when viewed from above. In the illustrated example, a fitting cover portion 11 that comes into contact with the outer surface of the fitting protrusion portion 4 of the container body 1 is provided on the outer peripheral edge. The fitting cover part 11 is formed into a substantially inverted U-shape in cross section so as to abut the upper edge and outer surface of the fitting protrusion 4, respectively, so as to fit tightly into the fitting protrusion 4. Also, at each corner, consideration is given to making the overlapping state even stronger by fitting the concave and convex portions between the abutting side surfaces.

In addition, instead of using such a so-called external fitting method, the opening of the container body 1 can also be covered by a so-called internal fitting method (not shown).

A storage cover 12 is formed inside the fitting cover 11 of the lid 10 and bulges upward so as to cover the entire openings of the deep storage recess 2 and the shallow storage recess 3. This storage cover part 12 is formed into a two-stage shape with a step part 13 as shown in the figure, and the upper part 14 is used to store the container main body 1 in the deep bottom when other container main bodies 1 are stacked. It is adapted to fit snugly inside the edge leg 6 on the bottom wall of the recess 2. That is, at least one edge portion of the upper portion 14, that is, one of the longitudinal edge portions of the upper portion 14 is attached to the edge portion of the edge leg portion 6, and also to both longitudinal edges of the upper portion 14. are in contact with both side portions of the edge leg 6, and at the mutually abutting edge portions, the container body 1 and the lid 10 extend outwardly of the edge leg 6 along the longitudinal direction. This ensures that the two do not move relative to each other.

In the food packaging container of the present invention, which is composed of the container body 1 and the lid 10, when stacking the containers, the upper containers are prevented from slipping, and the stacking direction is arbitrary, and the stacking direction is Positioning means 20 is provided for aligning the images. The positioning means 20 includes a positioning protrusion 21 formed at the center of the longitudinal side edge of the storage cover 12 of the lid 10 and a positioning protrusion 21 formed at the center of the longitudinal side edge of the storage cover 12 of the lid body 10, and a positioning projection 21 formed at the center of the longitudinal side edge of the storage cover 12 of the lid body 10, and a positioning projection 21 formed at the center of the longitudinal side edge of the storage cover 12 of the lid body 10, A positioning recess 22 formed at the center of the side edge portion is provided so as to be fitted into each other.

The positioning protrusions 21 are formed so as to protrude outward in the shape of a mountain on both side wall surfaces of the upper part 14 of the storage cover part 12 which is formed in two stages as shown in the figure.

The positioning recess 22 is disposed on the edge leg 6 formed on the bottom wall of the deep storage recess 2 of the container body 1, and is formed by recessing approximately the center portion along the longitudinal direction of the entire container body 1. It has been done. In the illustrated example, the positioning recess 22 disposed on the edge leg 6 is formed at a central portion along the length of the edge leg 6 and is not smaller than the width of the positioning protrusion 21. Including at least the central portion, it is formed to be long toward the other side of the container body 1 (the side opposite to the shallow storage recess 3) (schematically shown in FIG. 2, the edge legs 6 and the positioning recess 22 are (indicated by the dash-dotted line).

Note that the positioning recess 22 can also be formed at a central portion along the length direction of the entire container body 1 with a width sufficient to fit the positioning protrusion 21 (not shown). The length along the longitudinal direction of 22 may be set to any of these, and can be selected as appropriate.

That is, in the positioning means 20, when the storage cover part 12 of the lid body 10 is fitted into the edge leg part 6 of the deep storage recess 2 of the container body 1, the storage covers of the container body 1 and the lid body 10, respectively. It is sufficient that the positioning protrusion 21 and the positioning recess 22 are formed at the center of the side edges along the longitudinal direction between the fitting surfaces of the portion 12 and the edge leg portion 6.

Therefore, although not shown in the drawings, the positioning protrusion 21 may be provided at the lower part of the two-stage storage cover 12, or may be provided on the side surface of the one-stage storage cover 12. It is also possible to provide a positioning protrusion 21 on the edge leg 6 of the container body 1 and a positioning recess 22 on the storage cover 12 of the lid 10.

Next, an example of the use of the above-described embodiment will be described. The deep storage recess 2 of the container body 1 stores cooked rice, etc., the shallow storage recess 3 stores auxiliary foods, etc., and the lid body 1 The package is then wrapped by covering the package with a lid 10 or by performing a closing operation without considering the orientation of the lid 10, and then, for example, displayed and sold. When stacking for display, the positioning protrusion 21 of the lid 10 of the lower container can be fitted into the positioning recess 22 of the container body 1 of the upper container. At this time, as shown in FIG. 4, even if the orientation of the upper container is reversed with respect to the lower container, the positioning means using the positioning protrusion 21 and the positioning recess 22 positioned at the center in the longitudinal direction 20 allows the containers to be stacked in alignment in the stacking direction.

1... Container body 2... Deep storage recess 3... Shallow storage recess 4... Fitting protrusion 5... Partition wall 6... Edge leg 10... Lid 11... Fitting cover 12... Storage cover 13... Step Part 14...Upper part 20...Positioning means 21...Positioning protrusion 22...Positioning recess

Claims (7)

A food packaging container consisting of a container body having a substantially rectangular shape when viewed from above, in which a deep storage recess and a shallow storage recess are arranged in parallel, and a lid that fits over an opening of the container body. Around the bottom wall of the deep storage recess, there is an edge leg that protrudes downward from the bottom wall, and the lid body has a storage cover that covers the opening of the container body and fits inside the edge leg. The storage cover is provided in an upwardly bulging shape, and when this storage cover fits inside the edge leg of the deep storage recess, the fitting surfaces of the storage cover and edge leg of the container body and lid body, respectively, A positioning means consisting of a positioning protrusion and a positioning recess formed at the central part of the side edge along the longitudinal direction of the container body and the lid is provided between the container body and the lid , and the edge leg is located at the bottom wall of the deep storage recess. A food packaging container characterized in that a peripheral edge of the bottom wall excluding one edge portion on the side of the shallow storage recess is formed to bulge downward from the bottom wall . 2. The food packaging container according to claim 1, wherein the positioning protrusion and the positioning recess of the positioning means are arranged at a contact area between the upper part and the edge leg of the two-stage storage cover part. 3. The food packaging container according to claim 1, wherein the positioning projection is formed to protrude outward from the storage cover, and the positioning recess is formed in the shape of a depression in the edge leg. 4. The food packaging container according to claim 1 , wherein the positioning recess is formed at a central portion along the longitudinal direction of the edge leg and is not smaller than the width of the positioning protrusion. 4. The food packaging container according to claim 1, wherein the positioning recess is elongated toward the opposite side of the shallow storage recess in the container body, including at least the central portion. 6. The food packaging container according to claim 1, wherein the peripheral edge surface of the storage cover part of the lid body abuts the inner edge side surface of the edge leg part of the container body. The positioning means is an upper part of a two-stage storage cover that is formed to bulge upward on the lid, and a positioning means that is formed at the center of the side edge along the longitudinal direction of the lid and protrudes outward from the storage cover. In the longitudinal direction of the container body, a protrusion and an edge leg portion formed to bulge downward from the bottom wall of the bottom wall of the deep storage recess of the container body, excluding the edge portion on the shallow storage recess side, are attached. 2. The food packaging container according to claim 1, further comprising a positioning recess formed in the shape of a recess toward the opposite side of the shallow storage recess.

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