JP2024009161A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a packaging container that can make an object to be contained look better and the range in size capable of containing an object to be contained broader than the conventional one.

SOLUTION: A packaging container (1) includes a rest (22) that rises up from a bottom (2) and has a rest slant face (221c), a first support (25) having a first sidewall portion (251) and a second support (24). The first sidewall portion (251) has a first height (H1) greater than a second height (H2) of the second support (24).

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a packaging container capable of containing foods and the like.

BACKGROUND ART Conventionally, various foods such as boxed lunches and side dishes have been sold in packaging containers at various stores that sell take-out foods. Here, when food is placed on the placement surface of the bottom of the packaging container, there is a problem in that the food appears to sink into the packaging container, loses the sense of volume, and makes the food look bad.

Various research and development efforts are being carried out to solve this problem. For example, Patent Document 1 discloses a food packaging container in which a first protrusion and a second protrusion are formed. Both the first protrusion and the second protrusion are formed in a bulge on the upper surface side of the flat part of the bottom. Placing the food upright on the first protrusion can prevent the food from appearing sunken, and by bringing the lower end of the food served on the first protrusion into contact with the second protrusion, the food can be This can prevent the outer periphery from shifting toward the front side wall.

Japanese Patent Application Publication No. 2016-182988

However, when a small food is stored in the food packaging container disclosed in Patent Document 1, when the food is placed on the first protrusion, the lower end of the food is separated from the second protrusion. The food that has been placed on the periphery will shift toward the front side wall of the outer periphery. On the other hand, when storing large foods in the aforementioned food packaging container, when the food is placed on the first protrusion, the lower end of the food comes into contact with the second protrusion, but the food is placed above the top of the first protrusion. The amount of food that sticks out increases and the appearance becomes unbalanced. Therefore, in order to improve the appearance of the food to be served in the food packaging container and to prevent the food from shifting, the size range of the food that can be accommodated in the food packaging container must be narrowed.

One aspect of the present invention has been made in view of the above-mentioned problems, and provides packaging that can improve the appearance of stored items such as food and that can accommodate a wider range of sizes of stored items than conventional packaging. The purpose is to realize a container for use.

A packaging container according to one aspect of the present invention includes:
A packaging container comprising a bottom part having a placing part on which an object is placed, and a peripheral wall part extending upward from the bottom part,
The aforementioned placement section is
It is raised upward from the bottom part,
a mounting slope that slopes in one direction;
a first support portion that bulges inward from the peripheral wall portion and is capable of supporting the accommodated object with the side wall portion;
a second support part that is a rib-shaped protrusion located between the lower end of the mounting inclined surface and the side wall part and capable of supporting the object to be accommodated;
A first height from a plane including a ground plane of the bottom portion to a first upper surface of the side wall portion is higher than a second height from the plane to a second upper surface of the second support portion.

According to the configuration, the object to be accommodated can be supported by the mounting inclined surface and the second support portion. In addition, since the first height is higher than the second height, when the stored object is placed on the mounting slope, it is assumed that the stored object climbs over the second upper surface and protrudes toward the peripheral wall side. Also, the object to be accommodated can be supported by the mounting inclined surface and the side wall portion of the first support portion. As a result, the range of sizes of objects that can be accommodated in the packaging container is widened, and more types of objects can be accommodated than conventional packaging containers.

Further, according to the above configuration, the object to be accommodated is placed on the mounting slope. Therefore, compared to, for example, a case where the stored object is placed on a mounting surface that is substantially parallel to the ground surface, the stored object is more likely to catch the eye of a consumer or the like, and the stored object has a sense of volume. This improves the appearance of the items contained within the packaging container.

As one aspect of the present invention,
further comprising a connecting portion that is continuous with the peripheral wall portion and the mounting inclined surface,
The connecting portion is
a connecting slope that slopes in the same direction as the slope of the mounting slope and has a width narrower than the mounting slope;
The device may include a connecting side wall portion located at one end of the connecting portion on the side of the mounting slope, and making the position of the connecting slope higher than the mounting slope.

According to the above configuration, when the object to be accommodated is large enough to cover the side edge of the mounting slope in a state where it is placed on the mounting slope, the loading slope, the first support portion or The object to be accommodated can be supported by either one of the second support parts and the connecting side wall part. In addition, even if a gap is created between the stored object and the connecting side wall when the stored object is placed on the mounting slope, the movement of the stored object toward the connecting side will be prevented by the connecting side wall. limited by. For these reasons, compared to the case where there is no connecting portion, it becomes easier to store the object closer to the center within the packaging container, and the appearance of the object inside the packaging container can be further improved.

Further, according to the above configuration, the connecting inclined surface is inclined in the same direction as the mounting inclined surface. Therefore, if the object to be accommodated is large enough to protrude from the side edge and second surface of the mounting slope in a state where it is placed on the mounting slope, the loading slope and the first support In addition to the section, the object to be accommodated can be supported by the connecting inclined surface. As a result, when a relatively large object is stored in the packaging container, the object can be stably supported compared to a case without a connecting part, and the object can be held in the packaging container. It becomes easier to maintain good appearance.

Further, according to the above configuration, the width of the connection slope is narrower than that of the mounting slope. Therefore, if the food to be accommodated is oily or juicy food, the total amount of oil or soup stock that adheres to each surface can be reduced compared to when the width of the mounting slope and the width of the connecting slope are approximately the same. You can do less. As a result, a larger amount of oil or soup stock can be discharged to the area between the peripheral edge and the mounting part than when the width of the mounting slope and the width of the connecting slope are approximately the same, and the packaging container The amount of oil or soup stock that re-adheres to the contents inside can be efficiently reduced.

As one aspect of the present invention,
The side wall portion has a side wall surface that comes into contact with the stored object and has a convex shape,
The connecting side wall portion may have a connecting side wall surface that contacts the stored object in a convex shape.

According to the above configuration, compared to a case where at least one of the inner wall surface and the connecting side wall surface does not have a convex strip shape (for example, a planar shape or a curved surface shape with a small curvature), the total area of these surfaces, that is, the area of the contained object Total contact area becomes smaller. Therefore, if the food to be accommodated is, for example, oily or juicy food, the total amount of oil or soup stock adhering to at least one of the inner wall surface and the connecting side wall surface can be reduced.

In addition, on each of the inner wall surface and the connecting side wall surface, the oil or soup stock of the stored object accumulates in the grooved portion, or flows out through the grooved portion into the area between the peripheral edge and the placing portion. . For these reasons, compared to the case where at least one of the inner wall surface and the connecting side wall surface does not have a convex stripe shape, the amount of oil or soup stock that re-adheres to the contents in the packaging container can be efficiently reduced.

As one aspect of the present invention,
The placement portion further includes a non-placement inclined surface that is inclined in a direction opposite to the direction from the upper end of the placement inclined surface toward the lower end,
A mounting side inclined groove extending along the inclination direction of the mounting slope is formed in the mounting slope,
A non-placing side inclined groove extending along the inclination direction of the non-placing inclined surface is formed in the non-placing inclined surface,
The mounting side inclined groove and the non-placing side inclined groove may communicate with each other.

According to the above configuration, if the object to be accommodated is, for example, oily or juicy food, the oil content or soup stock of the object to be accommodated can be stored in at least one of the inclined groove on the placement side and the inclined groove on the non-placement side. can. Alternatively, the oil or soup stock of the stored object can be passed between the peripheral edge and the mounting section through at least one of the inclined groove on the loading side and the inclined groove on the non-loaded side, or, depending on the size of the loaded object, through the non-loaded inclined surface. It can be discharged to the area between. For these reasons, compared to the case where at least one of the non-loading inclined surface, the loading side inclined groove, and the non-loading side inclined groove is not present, the amount of oil or soup that re-adheres to the contents in the packaging container is lower. can be efficiently reduced.

According to one aspect of the present invention, it is possible to realize a packaging container that can improve the appearance of the objects to be stored and can accommodate a wider range of sizes of the objects that can be accommodated than conventional packaging containers.

FIG. 1 is a plan view of a packaging container according to an embodiment of the present invention. 2 is a sectional view taken along the line II-II of the packaging container shown in FIG. 1. FIG. Reference numeral 301 is a plan view showing a state in which the packaging container shown in FIG. 1 is filled with a first food product. Reference numeral 302 is a sectional view taken along the line III-III of the figure shown by reference numeral 301. Reference numeral 401 is a plan view showing a state in which the packaging container shown in FIG. 1 is filled with a second food product. Reference numeral 402 is a cross-sectional view taken along the line IV-IV of the figure indicated by reference numeral 402.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. In this embodiment, an example of a packaging container according to one aspect of the present invention is a food packaging container that stores food such as a boxed lunch or a side dish as an object and does not include a lid. I will list and explain. However, the object contained in the packaging container according to one embodiment of the present invention is not limited to food. Furthermore, the packaging container according to one aspect of the present invention may include a lid.

[Configuration of packaging container]
The configuration of a packaging container 1 according to an embodiment of the present invention will be described using FIGS. 1 and 2. For convenience of explanation, only the cross-sectional shape of the packaging container 1 is shown in FIG. 2, and illustration of each part on the depth side of the cross section of the packaging container 1 is omitted. This also applies to reference numeral 302 in FIG. 3 and reference numeral 402 in FIG.

The packaging container 1 is suitable for storing greasy or juicy foods, although there are no particular restrictions on the types of foods that can be stored therein. Examples of greasy foods include fried foods, hamburgers, steaks, and grilled fish. Examples of juicy foods include marinated foods and vinegared foods. In this embodiment, a first food product 70 and a second food product 80 are taken as examples of food items to be accommodated in the packaging container 1 (see FIGS. 3 and 4; details will be described later). However, in the explanation in this column, the first food 70 and the second food 80 are simply referred to as "food".

Further, in this embodiment, the packaging container 1 is formed by thermoforming a resin sheet having a sheet thickness of 0.1 mm to 4 mm, preferably 0.15 mm to 2.5 mm. As the resin sheet, for example, a thermoplastic resin sheet such as a polyolefin resin sheet, a polystyrene resin sheet, a polyester resin sheet, etc. can be used. These resin sheets may be foam sheets or non-foam sheets. Moreover, a laminated sheet can also be used as the resin sheet. As the laminated sheet, for example, a film-laminated foam sheet in which a film is laminated on a foam sheet, a coextrusion laminate sheet, and an extrusion laminate sheet can be used. Examples of thermoforming methods include vacuum forming, thick air forming, vacuum pressure forming, and hot plate forming.

Furthermore, in this embodiment, the packaging container 1 is monochrome in white. However, the color of the packaging container 1 is not limited to this, and may be any color. Moreover, a pattern may be attached to the packaging container 1. For example, the packaging container 1 may have a base color of black, and at least a portion thereof may have a pattern of gold, red, or the like.

As shown in FIG. 1, the packaging container 1 has a rectangular shape in plan view. Here, "rectangular shape" means a shape that can be regarded as a rectangular shape when the packaging container 1 is viewed as a whole, that is, a substantially rectangular shape. Therefore, for example, a portion of the outer edge of the packaging container 1 may be provided with a protruding portion, or may include a portion forming a linear side. This also applies to shapes other than rectangular shapes (for example, circular shapes), and also applies to the shapes of each part constituting the packaging container 1 when viewed from all directions.

As shown in FIGS. 1 and 2, the packaging container 1 includes a bottom portion 2, a peripheral wall portion 3, a connecting portion 4, and a flange portion 5. The bottom part 2 forms the bottom of the packaging container 1. The peripheral wall portion 3 is a portion extending upward from the bottom surface portion 2. The connecting portion 4 is a portion that is continuous with the peripheral wall portion 3 and a mounting slope 221c, which will be described later. The flange portion 5 is a portion extending outward from the upper end of the peripheral wall portion 3.

<Bottom part>
As shown in FIGS. 1 and 2, the bottom part 2 has a bottom main body part 21, a mounting part 22, and a bottom groove part 23. The bottom main body portion 21 is a flat plate-shaped portion, and has a rectangular outer shape when viewed from above. The four corners of the bottom main body part 21 have a rounded shape.

The placing part 22 is a part on which food is placed, and is a part that protrudes upward from the bottom part 21. The mounting section 22 includes a mounting main body section 220, a second support section 24, and a first support section 25. The placement main body part 220 is a part that protrudes upward from the upper surface of the bottom main body part 21, and is a triangular prism-shaped part extending in the lateral direction. In this specification, the lateral direction refers to a direction from one short side 552 of the outer edge 55 (details will be described later) of the packaging container 1 to the other short side 552 (see FIG. 1). The placement main body portion 220 has a placement wall portion 221, a non-placement wall portion 222, and a placement side wall portion 223.

The mounting wall portion 221 is a plate-shaped portion that is rectangular in plan view, and includes a top wall 221a and an inclined wall 221b. The top wall 221a is a flat plate portion located at the upper end of the mounting wall portion 221 and substantially parallel to a ground plane 233, which will be described later. The inclined wall 221b is a flat plate portion whose upper end is continuous with one of the longitudinal ends of the top wall 221a. The inclined wall 221b is inclined toward the first direction X (one direction) from its upper end to its lower end. The first direction X is a direction from the upper end of the inclined wall 221b toward one of the long sides 551 of the outer edge portion 55, as shown in FIGS. 1 and 2. The lower end of the inclined wall 221b is connected to the root of the second support portion 24 on the inclined wall 221b side, which will be described later.

Depending on the size of the food, the food to be stored in the packaging container 1 is placed on (i) the upper surface of the top wall 221a, (ii) the upper surface of the connecting portion between the top wall 221a and the inclined wall 221b, or (iii) It is placed on either of the mounting slopes 221c of the sloped wall 221b. Hereinafter, the upper surface of the connecting portion between the top wall 221a and the inclined wall 221b will be referred to as a "connecting upper surface." The mounting inclined surface 221c is the upper surface of the inclined wall 221b.

The non-mounting wall portion 222 is a rectangular flat plate-shaped portion as shown in FIGS. 1 and 2, and its upper end is connected to the other longitudinal end of the top wall 221a. The non-mounting wall portion 222 is inclined in the second direction Y from its upper end to its lower end. The second direction Y is a direction from the upper end of the non-mounting wall portion 222 toward the other long side portion 551 of the outer edge portion 55, as shown in FIGS. 1 and 2. That is, the second direction Y is the opposite direction to the first direction X. This "opposite direction" does not require the opposite direction in a strict sense, but is a concept that allows approximately the opposite direction.

Basically, the food contained in the packaging container 1 is not placed on the non-placement inclined surface 222a of the non-placement wall portion 222. However, for example, when the food contained in the packaging container 1 is soft and large and is placed on the mounting inclined surface 221c, a part of the food protrudes from the top wall 221a and comes into contact with the non-mounting inclined surface 222a. There is something to do. In other words, a portion of the food contained in the packaging container 1 may be unintentionally placed on the non-placement inclined surface 222a. The non-placing inclined surface 222a is the upper surface of the non-placing wall portion 222.

Note that a first direction is just an example. As long as the inclination direction of the non-placing inclined surface 222a is opposite to the inclination direction of the placing inclined surface 221c, the inclination direction of each of these surfaces will depend on the shape of the placing main body part 220, the bottom main body part 21 and the inclined wall. 221b and the non-mounting wall portion 222, etc., it can be arbitrarily changed.

The placement-side side wall portion 223 is a triangular flat plate portion as shown in FIGS. 1 and 2. The placement side wall portion 223 is continuous with the shorter end of each of the top wall 221a, the inclined wall 221b, and the non-placement wall portion 222. In other words, the placement-side side wall portion 223 closes off the space surrounded by the top wall 221a, the inclined wall 221b, and the non-placement wall portion 222 from the side. In this specification, the side refers to the short side 552 side of the outer edge 55 of the packaging container 1. The lower end of the placement side wall portion 223 is continuous with the upper surface of the bottom main body portion 21 .

A mounting side inclined groove 221d is formed in the mounting wall portion 221, extending from the upper surface of the top wall 221a to the lower end of the mounting inclined surface 221c. The mounting side inclined groove 221d is a groove extending along the inclined direction of the mounting inclined surface 221c, that is, the first direction X. In this embodiment, as shown in FIG. 1, four mounting side inclined grooves 221d are formed in the mounting wall portion 221.

Two of the four mounting side inclined grooves 221d are formed near both ends of the short side of the mounting wall 221, and the other two are formed near the center of the mounting wall 221. It is formed. The two mounting side inclined grooves 221d formed near both ends of the short side of the mounting wall portion 221 are both formed at symmetrical positions with respect to a first central axis (not shown) as a reference. The first central axis refers to the central axis of the mounting wall portion 221, and specifically, the first central axis is the central axis of the mounting wall portion 221. Refers to the central axis that extends along the Further, the two mounting side inclined grooves 221d formed near the center of the mounting wall portion 221 are also formed at symmetrical positions with respect to the first central axis.

A non-placing side inclined groove 222b is formed in the non-placing wall portion 222 from the upper end to the lower end of the non-placing inclined surface 222a. The non-placing side inclined groove 222b is a groove extending along the inclination direction of the non-placing inclined surface 222a, that is, along the second direction Y. In this embodiment, as shown in FIG. 1, four non-placing side inclined grooves 222b are formed in the non-placing wall portion 222.

Two of the four non-placing side inclined grooves 222b are formed near both ends of the short side of the non-placing wall portion 222, and the other two are formed near both ends of the non-placing wall portion 222. It is formed near the center. The two non-placing side inclined grooves 222b formed near both ends of the short side of the non-placing wall portion 222 are formed at symmetrical positions with respect to a second central axis (not shown). . The second central axis is the central axis of the non-placing wall portion 222, and specifically, the second central axis is the central axis of the non-placing wall portion 222. Specifically, the second central axis is the central axis of the non-placing wall portion 222. It refers to the central axis extending along the direction Y. Further, the two non-placing side inclined grooves 222b formed near the center of the non-placing wall portion 222 are also formed at symmetrical positions with respect to the second central axis.

The four placement side inclined grooves 221d and the four non-placement side inclined grooves 222b function as channels through which the oil or soup stock of the food flows toward the lower end of each groove, and the oil or soup stock is transferred to the oil pool described below. It plays the role of discharging to 234. In this embodiment, the two mounting side inclined grooves 221d are located near both ends of the short side of the mounting wall portion 221, and the two non-placing side inclined grooves 222b are located in the vicinity of both short side ends of the mounting wall portion 221. Since it is located near both ends on the short side, oil or soup stock can be efficiently discharged to the oil pool 234.

Each of the four placement side inclined grooves 221d communicates with a non-placement side inclined groove 222b (hereinafter referred to as "corresponding non-placement side inclined groove 222b") having the same horizontal formation position in plan view. There is. Specifically, the placement side inclined groove 221d and the corresponding non-placement side inclined groove 222b communicate with each other at the connection point between the top wall 221a and the non-placement wall portion 222. Here, "the formation positions in the lateral direction in plan view are the same" does not mean that the formation positions in plan view are completely the same, but are considered to be the same at the visual recognition level. It is a concept that includes substantially the same thing that can be done. Since the placement side inclined groove 221d and the corresponding non-placement side inclined groove 222b communicate with each other at the above-mentioned connection point, the oil or soup stock of the food adhering to the upper surface of the top wall 221a can be removed from the communicating portion of both grooves. It can be efficiently flowed into the mounting side inclined groove 221d and the non-placing side inclined groove 222b.

As shown in FIGS. 1 and 2, the second support portion 24 is a rib-shaped protrusion located between the lower end of the mounting inclined surface 221c and a side wall portion 61, which will be described later. Specifically, as shown in FIG. 2, the second support portion 24 protrudes upward from a region between the lower end of the mounting inclined surface 221c and the side wall portion 61 on the upper surface of the bottom main body portion 21. Further, the second support portion 24 extends in the horizontal direction as shown in FIG. 1, and closes the opening on the lower end side of each of the four mounting side inclined grooves 221d.

Both end surfaces of the second support part 24 are inclined so that as they go upward, they become more inclined towards the center of the second support part 24. Therefore, the oil or soup stock of the food flowing from the upper part of the two mounting side inclined grooves 221d formed near both ends of the short side of the mounting wall 221 is absorbed by the two mounting side inclined grooves 221d. When oil or soup stock overflows from the lower end of the groove 221d, it becomes easier to be guided to the oil pool 234. The second support portion 24 is a portion that can support the food placed on the placement portion 22, and is suitable for supporting small foods. Details of how the second support portion 24 supports the food will be described later.

The bottom groove portion 23 is an annular portion formed to surround the outer edge of the bottom main body portion 21, and is continuous with the outer edge. As shown in FIG. 2, the bottom groove portion 23 is recessed downward from the upper surface of the bottom main body portion 21. In other words, the bottom groove portion 23 protrudes downward from the back surface of the bottom main body portion 21 and forms a leg portion of the packaging container 1.

The first support portion 25 is a portion that bulges inward from the peripheral wall portion 3, as shown in FIGS. 1 and 2, and is a portion where food can be supported by a first side wall portion 251, which will be described later. In this specification, the inside refers to the center side of the packaging container 1. Specifically, as shown in FIG. 1, the first supporting portion 25 is a first surrounding wall portion 311 of the two first surrounding wall portions 311 of the first surrounding wall portion 31 that faces the second supporting portion 24. It bulges inward from the inside of the body.

The first support portion 25 has a rectangular prism shape extending in the lateral direction, as shown in FIGS. 1 and 2, and has approximately the same length in the lateral direction as the second support portion 24. In this embodiment, the side wall portion of the first support portion 25 is composed of a first side wall portion 251 and two second side wall portions 252, as shown in FIG. The second side wall portion 252 is a side wall portion located at the lateral end of the first support portion 25 and protrudes inward from the inner surface of the first peripheral wall portion 31. In this embodiment, the angle between the second side wall portion 252 and the inner surface of the first peripheral wall portion 31 is approximately 90°. The lower end of the second side wall portion 252 extends to the flat portion 232 of the bottom groove portion 23 and is continuous with the bottom groove side wall portion 231 and the flat portion 232 .

The first side wall portion 251 is a side wall portion that faces the second support portion 24 and is continuous with the inner end of each of the two second side wall portions 252. Further, the lower end portion of the first side wall portion 251 is continuous with one of the longitudinal ends of the bottom main body portion 21 (the end portion on the side adjacent to the second support portion 24). Details of how the first support portion 25 supports the food will be described later.

The bottom groove portion 23 has a bottom groove side wall portion 231 and a flat portion 232. The bottom groove side wall portion 231 is a portion extending downward from the back surface of the bottom main body portion 21 and forms a side wall of the bottom groove portion 23. In this embodiment, the inner surface of the outer side wall portion of the bottom groove side wall portion 231 has a convex strip shape in which a plurality of elongated convex regions extending in the vertical direction are formed over substantially the entire surface. The flat portion 232 is a plate-shaped portion that is continuous with the lower end of the bottom groove side wall portion 231, and the back surface thereof forms a ground plane 233.

Since the bottom surface part 2 has the bottom groove part 23, the ground plane of the packaging container 1 becomes the ground plane 233, and the area of the ground plane of the packaging container 1 can be reduced. As a result, if the food stored in the packaging container 1 is warmer or colder than the temperature at the location where it contacts the ground surface 233, the food is less likely to be affected by the temperature at the location. Here, the "place in contact with the ground plane 233" may include, for example, a table on which the packaging container 1 is placed.

A space surrounded by the bottom groove side wall portion 231 and the flat portion 232 forms an oil pool 234 . The oil reservoir 234 is a place for storing food oil and soup stock, and for example, the oil and soup stock that flowed out from the lower ends of the four loading side inclined grooves 221d and the lower ends of the four non-loading side inclined grooves 222b. Save up. The formation of the oil pool 234 prevents the oil or soup stock flowing out from the loading side inclined groove 221d and the non-loading side inclined groove 222b from staying on the upper surface of the bottom main body 21 and re-adhering to the food. Can be reduced.

The configuration of the bottom portion 2 is not limited to the example of this embodiment. For example, the non-mounting wall portion 222 may be orthogonal to the bottom main body portion 21. Here, "perpendicular to the bottom main body part 21" does not mean that the non-mounting wall part 222 is completely orthogonal to the bottom main body part 21, but is considered to be perpendicular to the bottom main body part 21 at a visual level. This is a concept that includes almost orthogonality that can be performed. Further, for example, the placement side inclined groove 221d and the non-placement side inclined groove 222b do not need to be in communication with each other, and the number and formation position of the placement side inclined groove 221d and the non-placement side inclined groove 222b are also arbitrary. You may change it to . Furthermore, at least one of the placement side inclined groove 221d and the non-placement side inclined groove 222b may not be formed. Furthermore, for example, the bottom surface portion 2 does not need to have the bottom groove portion 23. In this case, the back surface of the bottom main body portion 21 forms a ground plane.

<Peripheral wall>
The peripheral wall part 3 is a frame-shaped part extending upward from the outer edge of the bottom groove part 23, as shown in FIGS. 1 and 2, and forms the peripheral wall of the packaging container 1. Further, the space surrounded by the bottom surface portion 2 and the peripheral wall portion 3 constitutes a food storage space in the packaging container 1. As shown in FIG. 2, the peripheral wall portion 3 includes a first peripheral wall portion 31, an extension portion 32, and a second peripheral wall portion 33.

The first peripheral wall portion 31 is a frame-shaped portion extending upward from the upper end of the outer side wall portion of the bottom groove side wall portion 231, and is formed to expand outward as it goes upward. The first peripheral wall portion 31 has two first peripheral wall portions 311 and two second peripheral wall portions 312, as shown in FIG. The first peripheral wall portion 311 is a longitudinal wall portion of the first peripheral wall portion 31 , and the second peripheral wall portion 312 is a short side peripheral wall portion of the first peripheral wall portion 31 .

The inner surface of the first peripheral wall portion 31 has a convex strip shape in which a plurality of elongated convex regions extending in the vertical direction are formed over substantially the entire surface. The convex region formed on the inner surface of the first peripheral wall portion 31 is continuous with the convex region formed on the inner surface of the outer side wall portion of the bottom groove side wall portion 231. As a result, when the food contained in the packaging container 1 is large enough to cover the entire bottom part 2, for example, the oil or soup stock flowing out from the food is formed between two adjacent convex regions. This can reduce oil or stock from re-adhering to food. Note that the inner surface of the first peripheral wall portion 31 and the inner surface of the outer side wall portion of the bottom groove side wall portion 231 do not have to have a convex shape, and may have a planar shape, for example.

The extending portion 32 is a plate-shaped portion extending outward from the entire circumference of the upper end of the first peripheral wall portion 31 . The extending portion 32 has an annular shape as shown in FIG. 1 in plan view. The second peripheral wall portion 33 is a frame-shaped portion extending upward from the outer end of the extension portion 32, as shown in FIG. In this embodiment, the angle formed by the extension portion 32 and the second peripheral wall portion 33 is approximately 90°. Note that the peripheral wall portion 3 does not need to have the extending portion 32 and the second peripheral wall portion 33.

<Connection section>
As shown in FIG. 1, the connecting portion 4 is a portion extending inward from each of the two second peripheral wall portions 312 of the first peripheral wall portion 31, and the inner end thereof is connected to the loading side side wall portion 223 and the loading side wall portion 223. It is continuous with the inclined surface 221c. In this embodiment, the connecting portion 4 includes a first connecting portion 41 and a second connecting portion 42.

The first connecting portion 41 is a portion extending inward from the lower peripheral wall portion of the second peripheral wall portion 312, and has an inner end connected to the placement-side side wall portion 223. The lower ends of the two side wall portions of the first connecting portion 41 extend to the flat portion 232 of the bottom groove portion 23 and are continuous with the bottom groove side wall portion 231 and the flat portion 232 .

The second connecting portion 42 is a portion that protrudes upward from the upper surface of the first connecting portion 41 . The second connecting portion 42 has an outer end connected to the upper peripheral wall portion of the second peripheral wall portion 312, and an inner end connected to the mounting side wall portion 223 and the mounting inclined surface 221c. The inner end of the second connecting portion 42 includes a connecting side wall portion 421 . The connecting side wall portion 421 is a side wall portion located at one end of the second connecting portion 42 on the mounting slope 221c side and protruding upward from the shorter side end region of the mounting slope 221c. The connecting side wall portion 421 is formed to be inclined inward toward the top wall 221a side. Further, the connecting side wall portion 421 is formed to be inclined outward from the connecting portion with the mounting inclined surface 221c toward the end on the connecting inclined surface 424 (details will be described later) side.

The connecting side wall surface 422, which is a side wall surface of the connecting side wall portion 421, is a surface that comes into contact with the food, depending on the size of the food contained in the packaging container 1. The connecting side wall surface 422 has a convex strip shape in which a plurality of elongated convex regions extending in the vertical direction are formed over substantially the entire surface. Note that the connecting side wall surface 422 does not have to have a convex shape, and may have a planar shape, for example.

The upper surface of the second connecting portion 42 constitutes the upper surface of the connecting portion 4, and includes a connecting top surface 423 and a connecting slope surface 424. The connecting top surface 423 is a triangular surface in plan view that is connected to the upper end of the second peripheral wall portion 312 and is substantially parallel to the ground plane 233. The connecting inclined surface 424 is a surface that is inclined in the same direction as the first direction It is connected with The upper end region of the connecting inclined surface 424 is continuous with the connecting top surface 423. From the above-mentioned positional relationship between the connecting slope 424 and the connecting side wall 421, it can be said that the connecting side wall 421 makes the position of the connecting slope 424 higher than the mounting slope 221c.

In this embodiment, the angle of inclination of the connection inclined surface 424 is approximately the same as the inclination angle θ (see FIG. 2) of the mounting inclined surface 221c. The inclination angle θ is the angle formed by the mounting slope 221c and a virtual plane parallel to the ground plane 233, including the lower end of the mounting slope 221c. However, as long as the connecting inclined surface 424 is inclined in the same direction as the first direction X, its inclination angle may be different from the inclination angle θ of the mounting inclined surface 221c at a visual recognition level.

The connecting slope 424 has a width W41 in the horizontal direction that is narrower than a width W21 in the horizontal direction of the mounting slope 221c. Further, the width W42 of the connecting slope 424 in the slope direction is narrower than the width W22 of the mounting slope 221c in the slope direction. In other words, the area of the connecting slope 424 is smaller than the area of the mounting slope 221c. As a result, the amount of food oil or soup stock adhering to the connecting slope 424 is reduced, and the reduced amount is discharged to the oil pool 234, so that the oil or soup stock is efficiently discharged to the oil pool 234. can.

Note that the area of the connecting slope 424 only needs to be smaller than the area of the mounting slope 221c, and both widths W41 and 42 need to be narrower than the corresponding widths of the mounting slope. There isn't. Furthermore, the connecting portion 4 may have any shape as long as the area of the connecting slope 424 is smaller than the area of the mounting slope 221c. However, from the viewpoint of efficiently discharging food oil or soup stock into the oil pool 234, it is preferable that at least the width W41 is narrower than the width 21. Furthermore, the packaging container 1 does not need to be provided with the connecting part 4.

<Flange part>
The flange portion 5 is a portion extending outward from the upper end of the second peripheral wall portion 33, as shown in FIG. The flange portion 5 has an inner flange wall 51, an inner flange portion 52, an outer flange wall 53, an outer flange portion 54, and an outer edge portion 55. The inner flange wall 51 is a plate-shaped portion extending upward from the entire circumference of the upper end of the second peripheral wall portion 33 . The inner flange wall 51 is formed so as to widen outward toward the upper side. The inner peripheral flange portion 52 is a frame-shaped portion extending outward from the upper end of the inner flange wall 51. The upper surface of the inner peripheral flange portion 52 constitutes the upper end surface of the packaging container 1.

The outer flange wall 53 is a portion extending downward from the entire outer end of the inner flange portion 52 . The outer flange wall 53 is formed so as to widen outward toward the lower side. The outer peripheral flange portion 54 is a plate-shaped portion extending outward from the entire circumference of the lower end of the outer flange wall 53. The outer peripheral flange portion 54 is formed so as to be inclined downwardly toward the outside. In other words, the flange portion 5 has a two-stage structure including an inner flange portion 52 on the inner periphery side and an outer flange portion 54 on the outer periphery side.

The convex portion, which is annular in plan view and is composed of the second circumferential wall portion 33, the inner flange wall 51, the inner circumferential flange portion 52, and the outer flange wall 53, is a convex portion that is annular in plan view when the lid (not shown) has an internal fitting portion. It can be fitted with the inner fitting part. That is, the packaging container 1 is configured to be able to fit inside the lid.

The outer edge portion 55 is a frame-shaped portion extending downward from the lower end of the outer peripheral flange portion 54 . The lower end portion of the outer edge portion 55 is bent such that the tip thereof faces outward over the entire circumference. The lower end of the outer edge portion 55 has two long sides 551 and two short sides 552, as shown in FIG. The long side portion 551 is a portion on the longitudinal side at the lower end of the outer edge portion 55, and the short side portion 552 is a portion on the shorter side at the lower end portion of the outer edge portion 55. The connecting portion between the long side portion 551 and the short side portion 552 has a rounded shape in plan view. The tip of the lower end of the outer edge portion 55 forms the outer shape of the packaging container 1 in plan view. Further, as shown in FIG. 2, a connecting portion 56 between the outer peripheral flange portion 54 and the outer edge end portion 55 protrudes outward over the entire circumference.

When the lid (not shown) has an external fitting part, the outer edge end part 55 is covered from the outside by the external fitting part and comes into contact with the inner surface of the external fitting part, so that the outer edge part 55 is connected to the external fitting part. Can be fitted. That is, the packaging container 1 is configured to be externally fitable to the lid. In this way, since the packaging container 1 is configured to be able to fit inside or outside the lid, the lid can be fitted in an appropriate manner depending on the size of the food to be accommodated. The body can be fitted into the packaging container 1. Furthermore, since the connecting portion 56 protrudes outward, the lid fitted onto the packaging container 1 becomes difficult to come off from the packaging container 1, and the lid can be stably fixed to the packaging container 1. .

As shown in FIG. 1, the outer edge portion 55 has two receiving pieces 57 at its lower end. Specifically, one receiving piece 57 is formed extending outward from one of the four corners of the lower end. The other receiving piece 57 is formed to extend outward from a corner that is in a diagonal positional relationship in plan view with respect to the corner where the above-mentioned one receiving piece 57 is formed, among the four corners of the lower end portion. . The receiving piece 57 is a flat plate-shaped portion, and has a rounded tip when viewed from above. The two receiving pieces 57 have raised portions 571. The raised portion 571 protrudes upward from the upper surface of the receiving piece 57 and is formed near the tip of the receiving piece 57.

If a knob (not shown) is formed on the peripheral wall of the lid having an external fitting part, when the lid is externally fitted to the packaging container 1, the receiving piece 57 and the knob are not shown in plan view. They can be made to overlap. An opening portion is formed by the receiving piece 57 and the knob overlapping each other. The lid opening part is a part to be pinched when removing the aforementioned lid from the packaging container 1. In this case, since the receiving piece 57 has the raised part 571, a housing part is formed in the knob for accommodating the raised part in a state where the receiving piece 57 and the knob overlap. Since the accommodating portion accommodates the raised portion 571 in a state in which the aforementioned lid is externally fitted to the packaging container 1, displacement of the aforementioned lid along the outer surface of the outer edge portion 55 is reduced. This makes it possible to stabilize the fitted state between the lid body and the packaging container 1 described above.

The receiving piece 57 does not need to have the raised portion 571. Further, the number and formation position of the receiving pieces 57 can be changed as desired. Furthermore, the outer edge portion 55 does not need to have the receiving piece 57. The flange portion 5 does not need to have a shape that can accommodate both internal and external fitting of the lid as in the present embodiment, and the flange portion 5 does not need to have a shape that can accommodate both internal and external fitting of the lid. It is sufficient if the shape is compatible with either one of them. Alternatively, the shape of the flange portion 5 does not need to correspond to either the inner fitting lid body or the outer fitting lid body.

[First food storage mode]
A manner in which the first food product 70 is accommodated within the packaging container 1 will be described using FIG. 3. The first food 70 is large enough to substantially cover both of the two connecting slopes 424 when housed in the packaging container 1, as shown by reference numeral 301 in FIG. food. In addition, the length of the first food 70 on the longitudinal side is determined by the length of the first food 70 in the state where the first food 70 is accommodated in the packaging container 1, the length of the first food 70 on the longitudinal side of the bottom main body 21, and The length is such that it can fit in the space between the end portion on the wall portion 222 side. As the first food 70, jumbo croquettes, jumbo fillet cutlets, hamburgers, fried horse mackerel, etc. are assumed.

When storing the first food product 70 in the packaging container 1 , the first food product 70 is placed on the placement section 22 and supported by the first support section 25 . When the first food product 70 is accommodated in this manner, the first food product 70 is accommodated in the packaging container 1 as shown in FIG. Specifically, one of the longitudinal ends of the first food product 70 is placed on the top surface of the connection, as indicated by reference numeral 302 in FIG. Further, the first food product 70 comes into a state where it is supported by the first support portion 25 because the other longitudinal end comes into contact with the side wall surface 251a of the first side wall portion 251. Furthermore, the first food 70 comes into contact with a part of the second upper surface 241 of the second support part 24, thereby being supported by the second support part 24 as well. Hereinafter, the accommodation mode of the first food 70 shown in FIG. 3 will be referred to as a "first accommodation mode."

Here, the packaging container 1 has a height Ht that is the highest among the height Ht of the top wall 221a, the first height H1 of the first side wall portion 251, and the second height H2 of the second support portion 24. The second height H2 is the lowest. The height Ht is the shortest distance from the plane P to the upper surface of the top wall 221a. The first height H1 is the shortest distance from the plane P to the first upper surface 251b of the first side wall portion 251. The second height H2 is the shortest distance from the plane P to the second upper surface 241 of the second support portion 24. Plane P is a virtual plane including ground plane 233.

The height Ht' of the connection upper surface is approximately the same as the height Ht, and is slightly lower than the height Ht. The height Ht' is the shortest distance from the virtual plane P to the center of gravity of the connection upper surface. Therefore, among the height Ht', the first height H1, and the second height H2, the height Ht' is the highest.

Since the height Ht', the first height H1, and the second height H2 have the above-mentioned relationship, the first food 70 under the first storage mode is placed in the first direction (see) is maintained by the first support portion 25. Under the first storage mode, when the first food product 70 is viewed from the direction facing the mounting inclined surface 221c, the first food product 70 appears to be floating within the packaging container 1. This state is also maintained by the first support section 25. This gives the first food 70 in the packaging container 1 a sense of volume and improves its appearance.

In this embodiment, the side wall surface 251a is inclined so as to expand outward as it goes upward. Further, the side wall surface 251a has an inclination angle such that the angle formed by the contact surface of the first food product 70 and the side wall surface 251a is approximately 90° under the first accommodation mode. The abutment surface of the first food product 70 is the surface of the first food product 70 that comes into contact with a portion of the connecting upper surface and the second upper surface 241 under the first storage mode. Thereby, the supporting force of the first side wall portion 251 acts efficiently on the first food product 70 under the first accommodation mode, and the first accommodation mode is stabilized. Further, in this embodiment, as shown by reference numeral 301 in FIG. 3, the first side wall portion 251 and the second support portion 24 are substantially parallel in plan view. This also stabilizes the first housing mode.

Furthermore, in this embodiment, the upper surface of the first support portion 25 has a stepped shape in which the first upper surface 251b is higher than the other upper surface portions. As a result, the oil or soup stock flowing out from the first food 70 can be collected in another upper surface portion, or can be discharged from the side edge of the other upper surface portion into the oil pool 234, so that the oil or soup stock can be stored in the first food 70. Redeposition can be further reduced.

The side wall surface 251a has a convex strip shape in which a plurality of elongated convex regions extending in the vertical direction are formed over substantially the entire surface. This convex region has an upper end extending to the first upper surface 251b of the first side wall portion 251, and a lower end extending to the connection point between the first side wall portion 251 and the bottom main body portion 21. As a result, oil or soup stock flowing out from the first food product 70 under the first storage state can be efficiently collected in the groove or oil pool 234 formed between two adjacent convex regions. Can be done. Therefore, re-adhesion of oil or soup stock to the first food 70 can be effectively reduced.

Further, under the first accommodation mode, as shown by reference numeral 301 in FIG. 3, both ends of the first food product 70 on the short side are placed in the upper region of the connecting slope 424. In other words, the first food product 70 is also supported by the connecting part 4 under the first accommodation mode. This further stabilizes the first accommodation mode.

The first accommodation mode and the configuration of the first support section 25 described above are merely examples. Even when a relatively large category of food such as the first food 70 is stored in the packaging container 1, each of the connecting portion 4 and the placing portion 22 on which the food is placed depends on its size and shape. The surfaces, as well as the regions in the side wall surface 251a and the region in the second upper surface 241 that contact the food are different.

Further, the side wall portion of the first support portion 25 does not need to be composed of a first side wall portion 251 and two second side wall portions 252 as in the present embodiment, and may have an elliptical arc shape in a plan view, for example. The first side wall portion 251 may be configured. In this case, the side wall surface of the side wall portion of the first support portion 25 is constituted by the side wall surface 251a of the first side wall portion 251. Furthermore, the first height H1 does not need to be lower than the height Ht, and may be greater than or equal to the height Ht. However, if the first height H1 is equal to or higher than the height Ht, in some cases, the vicinity of the end of the first food product 70 on the side supported by the first support part 25 may become difficult to see due to the first support part 25. There is a possibility that this will happen. Taking this into consideration, it is preferable that the first height H1 is lower than the height Ht.

Furthermore, the side wall portion of the first support portion 25 may be configured of a first side wall portion 251 having, for example, a first upper surface 251b having an uneven shape when viewed from the front. In this case, the height from the plane P to the first upper surface 251b is different between the convex region and the concave region on the first upper surface 251b. In this case, the shortest distance from the plane P to the uppermost surface of the first upper surface 251b may be the first height H1. Specifically, the "uppermost surface of the first upper surface 251b" is the upper surface portion of the convex region of the first upper surface 251b.

[Second food storage mode]
A manner in which the second food product 80 is accommodated within the packaging container 1 will be described using FIG. 4. The second food 80 has a size that allows a plurality of pieces to be placed on the placing portion 22, as shown by reference numeral 401 in FIG. 4, and is a relatively small food. Moreover, the length of the longitudinal side of the second food product 80 is the length between the second support portion 24 and the lower end of the non-placement inclined surface 222a when a plurality of the second food products 80 are stored in the packaging container 1. It is long enough to fit into the space between them. As the second food 80, mini croquettes, mini fillet cutlets, mini hamburgers, etc. are assumed. In the example of FIG. 4, five second foods 80 are placed on the placing section 22, but this number is just an example.

When storing the second foods 80 in the packaging container 1 , a plurality of second foods 80 are placed on the placement section 22 and supported by the second support section 24 . When the second food product 80 is accommodated in this manner, the second food product 80 is accommodated in the packaging container 1 as shown in FIG. Specifically, as shown by reference numeral 402 in FIG. 4, substantially the entire surface of the mounting inclined surface 221c comes into contact with the second food product 80. Further, the second food 80 comes into a state where it is supported by the second support part 24 because one of the ends on the short side comes into contact with the side wall surface 242 of the second support part 24 . Hereinafter, the accommodation mode of the second food 80 shown in FIG. 4 will be referred to as a "second accommodation mode."

Under the second accommodation mode, as shown by reference numeral 402 in FIG. ing. Further, among the plurality of second foods 80, the two second foods 80 stored at the outermost side have one of the longitudinal ends facing the connecting side wall surface 422, as shown by reference numeral 401 in FIG. It is in contact with a part of the Further, the plurality of second foods 80 are in a state in which two adjacent second foods 80 are in contact with each other at their longitudinal ends.

In this embodiment, the side wall surface 242 is inclined so as to expand outward as it goes upward. Further, the side wall surface 242 has an inclination angle such that the angle formed between the contact surface of the second food product 80 and the side wall surface 242 is approximately 90° in the second storage mode. The contact surface of the second food product 80 is the surface of the second food product 80 that comes into contact with the mounting inclined surface 221c under the second accommodation mode. Thereby, the supporting force of the second support part 24 acts efficiently on the second food product 80 under the second accommodation mode, and the second accommodation mode is stabilized.

Further, in this embodiment, the side wall surface 242 has a planar shape as shown by the reference numeral 301 in FIG. This increases the contact area between the second food product 80 and the side wall surface 242, making the second accommodation mode more stable. Here, the side wall surface 242 may have, for example, a convex strip shape in which a plurality of elongated convex regions extending in the vertical direction are formed over substantially the entire surface. In this case, the oil or soup stock flowing out from the second food product 80 under the second storage state is collected in a groove formed between two adjacent convex regions, or the oil or soup stock is stored at both ends of the second support portion 24. The oil can be efficiently discharged from the oil to the oil pool 234. Therefore, re-adhesion of oil or soup stock to the second food 80 can be effectively reduced.

The second accommodation mode and the configuration of the second support portion 24 described above are merely examples. For example, under the second storage mode, one of the longitudinal ends of the two second foods 80 stored at the outermost side may be spaced apart from the connecting side wall surface 422. Furthermore, for example, under the second storage mode, two second food products 80 that are adjacent to each other do not need to be in contact with each other at the end portions in the longitudinal direction. Even in these storage modes, the two connecting side walls 421 can prevent the plurality of second foods 80 from moving unintentionally in the lateral direction. However, from the viewpoint of stabilizing the second accommodation mode, it is preferable that a plurality of second foods 80 be accommodated as in the example shown in FIG. 4 .

As described above, the packaging container 1 can accommodate objects of a wide range of sizes, from large objects such as the first food 70 to small objects such as the second food 80. It is particularly suitable for foods of the same type that come in different sizes, such as croquettes, fillet cutlets, and hamburger steaks. Therefore, there is no need to manufacture many types of packaging containers depending on the size of the object to be stored, and the inventory of packaging containers can be reduced. This will help reduce plastic waste and contribute to achieving the Sustainable Development Goals (SDGs). For example, packaging container 1 is based on three goals of the 17 SDGs: ``3 Good health and well-being,'' ``14 Let's protect the abundance of the ocean,'' and ``15 Let's protect the abundance of the land.'' can contribute to the achievement of

[Additional notes]
The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. are also included within the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1 Packaging container 2 Bottom part 3 Peripheral wall part 4 Connection part 24 Second support part 25 First support part 70 First food (material to be stored)
80 Second food (contained item)
221c Placement inclined surface 221d Placement side inclined groove 222a Non-placement side inclined groove 222b Non-placement side inclined groove 233 Ground surface 241 Second upper surface 251 First side wall portion (side wall portion)
251a Side wall surface 251b First upper surface 421 Connecting side wall portion 422 Connecting side wall surface 424 Connecting inclined surface H1 First height H2 Second height P Plane W41, W42 Width

Claims (3)

A packaging container comprising a bottom part having a placing part on which an object is placed, and a peripheral wall part extending upward from the bottom part,
The aforementioned placement section is
It is raised upward from the bottom part,
a mounting slope that slopes in one direction;
a first support portion that bulges inward from the peripheral wall portion and is capable of supporting the accommodated object with the side wall portion;
a second support part that is a rib-shaped protrusion located between the lower end of the mounting inclined surface and the side wall part and capable of supporting the object to be accommodated;
A first height from a plane including a ground plane of the bottom part to a first upper surface of the side wall part is higher than a second height from the plane to a second upper surface of the second support part,
The placement portion further includes a non-placement inclined surface that is inclined in a direction opposite to the direction from the upper end of the placement inclined surface toward the lower end,
A mounting side inclined groove extending along the inclination direction of the mounting inclined surface is formed in the mounting inclined surface,
A non-placing side inclined groove extending along the inclination direction of the non-placing inclined surface is formed in the non-placing inclined surface,
A packaging container in which the placement side inclined groove and the non-placement side inclined groove communicate with each other. further comprising a connecting portion that is continuous with the peripheral wall portion and the mounting inclined surface,
The connecting portion is
a connecting slope that slopes in the same direction as the slope of the mounting slope and has a width narrower than the mounting slope;
2. A connecting side wall portion, which is located at one end of the connecting portion on the side of the mounting slope, and makes the position of the connecting slope higher than the mounting slope. Packaging containers. The side wall portion has a side wall surface that comes into contact with the stored object and has a convex shape,
3. The packaging container according to claim 2, wherein the connecting side wall portion has a connecting side wall surface that comes into contact with the stored object and has a convex strip shape.

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