JP2022110964A - packaging container - Google Patents

Abstract

[Problem] To improve the appearance of the contents contained in a packaging container. [Solution] A packaging container (100) has a mounting surface (11a) of a mounting portion (11) that is composed of a central region (11a-1) that includes the center of the mounting surface (11a) and peripheral regions (11a-2) formed on both sides of the central region (11a-1), and the central region (11a-1) includes bulging regions (11a-3) that are formed outward of the peripheral regions (11a-2). [Selected Figure] Figure 1

Description

(1) Product catalog “2020-2021 NEW DESIGN COLLECTION” pp. 97-98, CP Kasei Co., Ltd. Issued Date of distribution October 1, 2020 Publisher CP Kasei Co., Ltd. (1516 Higashiebara-cho, Ibara City, Okayama Prefecture) (2) Product catalog “2020-2021 NEW DESIGN COLLECTION” pp. 97-98, issued by CP Kasei Co., Ltd. Publication date October 1, 2020 Publication location General Incorporated Association Japan Design Protection Association (2-4-1 Toranomon, Minato-ku, Tokyo, Toranomon Piazza Building 8F) Publisher Japan Design Protection Association (3) Website address https://www. cpkasei. co. jp/ Publication date October 1, 2020 Publisher CP Kasei Co., Ltd. (1516 Higashiebara-cho, Ibara City, Okayama Prefecture)

TECHNICAL FIELD The present invention relates to a packaging container capable of containing food and the like.

2. Description of the Related Art Conventionally, at various stores such as convenience stores and supermarkets, various foodstuffs such as box lunches and side dishes have been sold in packaging containers. Here, when various foodstuffs are housed in packaging containers and sold, appearance such as color, voluminousness, luxury, etc. is one of the important factors that arouse consumer's desire to buy. In this regard, Patent Document 1, for example, discloses a lidded container in which a plurality of vertically extending ribs are formed on a curved surface region.

JP 2010-184742 A

However, the lidded container disclosed in Patent Document 1 is intended to reduce heat conduction between the stored object and the floor surface by forming a plurality of vertically extending ribs on the curved surface region. It is not designed to improve the appearance of the stored items. Therefore, the lidded container disclosed in Patent Document 1 is insufficient in terms of improving the appearance of the contained object.

One aspect of the present invention has been made in view of the above-described problems, and an object thereof is to improve the appearance of a contained object contained in a packaging container.

A packaging container according to one aspect of the present invention comprises
an accommodation recess in which an object to be accommodated is accommodated;
a shoulder extending outward from the upper end of the receiving recess;
an outer wall extending downward from the outer end of the shoulder,
The accommodation recess is
a placement surface on which the object to be accommodated is placed;
a peripheral edge rib rising from the peripheral edge of the mounting surface,
The peripheral rib has a uniform height from the mounting surface,
The mounting surface is composed of a central region including the center of the mounting surface and peripheral regions formed on both sides of the central region,
The central region includes a bulging region formed outside the peripheral region.

According to the above configuration, the central area has more variations in size, arrangement, number and type of objects to be placed than the peripheral area due to the inclusion of the bulging area. As a result, in the central area where the line of sight of consumers tends to concentrate, it becomes easier to devise the size and arrangement of the objects placed in the central area, and the appearance of the contents of the packaging container is improved. can be done. In addition, since the height of the peripheral ribs from the mounting surface is uniform, the appearance of the peripheral ribs has a sense of unity. As a result, the appearance of the contents of the packaging container can be emphasized.

Furthermore, according to the above configuration, since the placement surface is divided into the central area and the peripheral area, different objects can be placed on the respective areas. As a result, the variety of the contents of the packaging container is increased, so that the contents can be made in consideration of the good appearance.

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

As one aspect of the present invention,
The accommodation recess may have a protruding rib that protrudes inward from the peripheral rib and is connected to the mounting surface.

According to the above configuration, the object can be placed on the placement surface using the protruding rib as a mark. As a result, it is possible to place the object to be stored in a desired area in a more orderly and simpler manner.

As one aspect of the present invention,
The protruding rib is composed of a first protruding rib formed in the bulging region and a second protruding rib formed in a region other than the bulging region on the mounting surface,
The length of the first protruding rib in the protruding direction may be different from the length of the second protruding rib in the protruding direction.

According to the above configuration, since the length of the first projecting rib in the projecting direction is different from the length of the second projecting rib in the projecting direction, the central region and the peripheral region can be distinguished by looking at the first projecting rib and the second projecting rib. becomes easier to distinguish between As a result, it is possible to place the object to be stored in a desired area in a more orderly and simpler manner.

As one aspect of the present invention,
The outer shape of the packaging container and the outer shape of the mounting surface are rectangular in plan view,
Each of the sides forming the outer shape of the mounting surface includes a first side partly forming the outer shape of the bulging region and a second side forming the outer shape of the region other than the bulging region on the mounting surface. configured,
The peripheral rib is composed of a first rib wall corresponding to the first side and a second rib wall corresponding to the second side,
A plurality of the second projecting ribs project inward from the first rib wall,
the plurality of second protruding ribs protruding inward from the first rib wall have the same length in the protruding direction,
When the tip of each of the plurality of second projecting ribs projecting inward from the first rib wall is brought into contact with a straight imaginary line, the tip of the projecting direction of the first projecting rib may also abut the imaginary line.

According to the above configuration, when the tip of each of the plurality of second projecting ribs in the projecting direction is brought into contact with a straight imaginary line, the tip of the first projecting rib in the projecting direction is also aligned with the imaginary line. abut. Therefore, the overall appearance of the first protruding rib and the plurality of second protruding ribs is unified. This sense of unity cancels out the presence of the bulging area, and the bulging area becomes unnoticeable visually. As a result, the appearance around the mounting surface of the packaging container is improved.

In addition, since the outer shape of the packaging container and the outer shape of the mounting surface are rectangular in plan view, and the portion forming the outer shape of the bulging region on the first side is visually unattractive, A sense of unity is created between the outer shape and the appearance around the mounting surface. This improves the appearance of the entire packaging container.

As one aspect of the present invention,
the peripheral rib includes two or three of the second rib walls;
If, of the two or three second rib walls, the one connected to the first rib wall is the third rib wall,
The accommodation recess has a plurality of third protruding ribs that protrude inward from the third rib wall and are connected to the mounting surface,
The plurality of third protruding ribs are longer in the protruding direction than the second protruding ribs protruding inward from the third rib wall,
The plurality of third protruding ribs are formed at positions closest to the first rib wall among the second protruding rib protruding inward from the third rib wall and the plurality of third protruding ribs. and formed at a position furthest from the first rib wall.

According to the above configuration, the plurality of third projecting ribs are longer in the projecting direction than the second projecting ribs projecting inward from the third rib wall. Accordingly, when the object is placed on the first area of the placing surface, the plurality of third protruding ribs can easily serve as a mark. Here, the first area is an area formed on the mounting surface inside the tip of the third projecting rib in the projecting direction of the third projecting rib. On the other hand, the region other than the first region on the mounting surface, specifically, the region formed outside the tip of the third projecting rib on the mounting surface in the opposite direction to the projecting direction of the third projecting rib. , the second region.

In addition, since the area of the second area is large, an article for improving the appearance of the object placed in the first area and deodorizing the smell of the object is placed in the second area. easier to place on the

Furthermore, according to the above configuration, the plurality of third projecting ribs are positioned closest to the first rib wall among the second projecting rib projecting inward from the third rib wall and the plurality of third projecting ribs. formed and formed furthest from the first rib wall. Thereby, when placing an object in the first region, the third protruding rib formed closest to the first rib wall and the third protruding rib formed farthest from the first rib wall is most likely to be a mark among the plurality of third projecting ribs.

ADVANTAGE OF THE INVENTION According to 1 aspect of this invention, the appearance of the to-be-contained object which a packaging container accommodates can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the external appearance of the packaging container which concerns on one Embodiment of this invention. FIG. 2 is a plan view of a mounting surface and peripheral ribs in the packaging container shown in FIG. 1; 3 is an enlarged view showing the structure of a portion around the bulging region shown in FIG. 2; FIG. FIG. 2 is a cross-sectional view of the packaging container shown in FIG. 1 taken along the line II-II. Reference numeral 501 is a plan view showing a variation of the bulge region and first rib wall according to one embodiment of the present invention. Reference numeral 502 is a plan view showing a modification of the central region according to one embodiment of the present invention.

One embodiment of the present invention will be described with reference to FIGS. 1-4. In the present embodiment, as a packaging container according to one aspect of the present invention, a food packaging container that accommodates foodstuffs such as box lunches and side dishes will be described as an example. However, the items to be stored in the packaging container according to one aspect of the present invention are not limited to foodstuffs.

In addition, the packaging container according to one aspect of the present invention does not include a lid that covers the opening of the accommodation recess (details will be described later) from the outside. However, the packaging container according to one aspect of the present invention may have a lid.

[Measures for improving appearance]
In general, when foodstuffs having substantially the same shape and size, such as sushi sets and assorted sashimi, are placed in a packaging container and displayed, the central region of the mounting surface of the packaging container has The appearance of the placed goods is the most important factor in arousing the consumer's willingness to buy. Here, the placement surface is a surface on which articles constituting foodstuffs are placed, and is composed of a central area and a peripheral area. The central region is a region of the mounting surface that includes the center of the mounting surface. The peripheral regions are regions formed on both sides of the central region on the mounting surface. The “center of the mounting surface” is the centroid of a figure representing the outer shape of the mounting surface when the mounting surface is viewed from above. In the following description, the centroid of the figure representing the outer shape of the mounting surface when the mounting surface is viewed from above is abbreviated as "the centroid of the mounting surface".

The most important reason why the appearance of the goods placed in the central area arouses the consumer's willingness to buy is as follows. In other words, it is difficult for consumers to remember the characteristics of individual foodstuffs that have substantially the same shape and size at first glance. There is a risk of making an impression. In order to impress consumers with foodstuffs having such characteristics, it is necessary to improve the appearance of foodstuffs placed in the central area, where the consumer's line of sight tends to concentrate, among the areas constituting the placing surface. because it is effective to

Therefore, the present inventors have made intensive studies based on the above findings. As a result, the inventors have found an effective measure for improving the appearance of articles placed in the central region. Specifically, the inventors have found that it is effective to provide the central region with a region formed outside the peripheral region. In the following description, the area formed outside the peripheral area in the central area will be referred to as a "bulging area".

By providing a bulging area in the central area, a space corresponding to the area of the bulging area is created for placing items that constitute foodstuffs. The degree of freedom for variation is greater than in the surrounding area. Therefore, it is possible to devise the size, arrangement, etc. of the articles placed in the central area so that the appearance of the articles placed in the central area looks good to the consumer at first glance. The packaging container 100 described below has been subjected to the measures for improving the appearance as described above.

[Overview of packaging container]
An overview of a packaging container 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. As shown in FIG. 1 , the packaging container 100 includes a housing recess 1 , a shoulder 2 and an outer wall 3 .

In this embodiment, the packaging container 100 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. Examples of thermoforming methods include vacuum forming, thick air forming, vacuum pressure forming, and hot plate forming. Note that the sheet thickness of the packaging container 100 may vary within the range of 0.1 mm to 4 mm.

As the resin sheet, a thermoplastic resin sheet such as a polyolefin resin sheet, a polystyrene resin sheet, a polyester resin sheet, or the like can be used. These resin sheets may be foamed sheets or non-foamed sheets. A laminated sheet can also be used as the resin sheet. As the laminated sheet, for example, a film-laminated foamed sheet obtained by laminating a film on a foamed sheet, a co-extruded laminated sheet, or an extruded laminated sheet can be used.

In this embodiment, the packaging container 100 has a black base color, and a region including at least a portion of the shoulder portion 2 and the outer wall portion 3 has a gold pattern. In this way, by forming the color of the appearance of the packaging container 100 by combining black and patterned gold, the appearance of the packaging container 100 can be given a high-class appearance. As a result, for example, the consumer can be reminded that the foodstuffs in the packaging container 100 are high-class and luxurious, and the consumer's willingness to purchase can be aroused.

The packaging container 100 may have a single color of either black or gold, may have a color other than black or gold, or may be colorless and transparent. Further, when the packaging container 100 is provided with a lid, the lid may be a combination of black and gold, or may be a single color of either black or gold. It may be colored other than black or gold, or it may be colorless and transparent.

<Accommodation recess>
The accommodation recess 1 constitutes a space for accommodating an object to be accommodated. Hereinafter, in the present embodiment, sushi will be mainly described as an example of an object to be accommodated. The housing recess 1 has a mounting portion 11 , peripheral ribs 12 , projecting ribs 13 , and inner wall portions 14 .

(Placement part)
The mounting portion 11 constitutes the bottom portion of the packaging container 100 . The upper surface of the placing portion 11 includes a placing surface 11a on which sushi is placed. An inner wall portion 14 that is a frame-shaped portion rising upward over the entire circumference of the mounting portion 11 is formed at an end portion of the mounting portion 11 . A frame-shaped peripheral edge rib 12 rising upward from the peripheral edge is formed on the peripheral edge of the mounting surface 11a. The mounting surface 11 a is a region on the upper surface of the mounting portion 11 surrounded by the peripheral ribs 12 .

As shown in FIG. 2, the placement surface 11a is a portion having a square outer shape in plan view. Here, the "square shape" means a shape that can be regarded as a square shape when the mounting surface 11a is viewed as a whole, that is, a substantially square shape. Therefore, as long as the shape is substantially square as a whole, for example, one side may be slightly curved, or the shape may be a shape other than a right angle, such as at least one corner being rounded. good. This applies to shapes other than square (for example, square), and also to shapes when each part (described later) constituting the packaging container 100 is viewed from all directions.

The outer shape of the mounting surface 11a does not have to be square, and a rectangular shape other than a square or any other shape can be adopted. When the mounting surface 11a has a shape other than a rectangular shape, the center of the mounting surface 11a may be the centroid of the mounting surface 11a described above, but is not limited to this. For example, when the centroid of the mounting surface 11a is not included in the mounting surface 11a, the center of the mounting surface 11a is the center of a virtual circle when the mounting surface 11a is viewed from above. There may be. The "virtual circle" is a circle having the maximum area that can be included in the figure representing the outer shape of the placement surface 11a.

In plan view, the outer shape of the packaging container 100 is square like the outer shape of the mounting surface 11a. Thus, it is preferable that the outer shape of the packaging container 100 and the outer shape of the mounting surface 11a in plan view have a similar relationship. With such a configuration, the area occupied by the mounting surface 11a in the packaging container 100 can be easily maximized, thereby increasing the degree of freedom in designing the size of the mounting surface 11a. In addition, the appearance of the packaging container 100 as a whole has a sense of uniformity.

(central area)
The mounting surface 11a is composed of a central region 11a-1 and two peripheral regions 11a-2. Both the central region 11a-1 and the peripheral region 11a-2 are formed to have a rectangular outer shape in plan view. The two long sides forming the outer shape of the central region 11a-1 respectively overlap with one of the long sides forming the outer shape of the two peripheral regions 11a-2.

The center region 11a-1 is formed as a region where the center of the center region 11a-1 overlaps the center of the mounting surface 11a. Areas formed on both sides of the central area 11a-1 are peripheral areas 11a-2. The two sides of the central region 11a-1 are the two sides that do not overlap the sides forming the mounting surface 11a out of the sides forming the outer shape of the central region 11a-1.

As described above, the center of the mounting surface 11a may be the centroid of the mounting surface 11a, or may be the center of a virtual circle. Thereby, the central region 11a-1 can include the center of the largest area of the mounting surface 11a regardless of the shape of the mounting surface 11a in plan view. Therefore, the central region 11a-1 can be formed in a region on the placement surface 11a where the line of sight of the consumer tends to concentrate.

In the central region 11a-1, a bulging region 11a-3 is formed outside the peripheral region 11a-2. Here, the sides forming the outer shape of the mounting surface 11a are divided into a first side 11c-1 partly forming the outer shape of the bulging region 11a-3 and a second side 11c-1 not forming the outer shape of the bulging region 11a-3. , and the side 11c-2. In other words, the second side 11c-2 represents the side forming the outer shape of the non-bulging region 11a-4. The non-expanded area 11a-4 is an area other than the expanded area 11a-3 on the mounting surface 11a. , and two peripheral regions 11a-2. Among the sides forming the outer shape of the central region 11a-1, the two opposing sides are respectively a part of the first side 11c-1 and the first side 11c-1 of the sides forming the outer shape of the mounting surface 11a. They are formed so as to overlap a part of the side opposite to the side 11c-1.

In this embodiment, of the sides forming the outer shape of the mounting surface 11a, the two opposing sides located on the left and right of the paper surface in FIG. 2 are the first sides 11c-1. In FIG. 2, the two opposing sides located above and below the paper surface are the second sides 11c-2.

The peripheral rib 12 is composed of a first rib wall 12a corresponding to the first side 11c-1 of the mounting surface 11a and a second rib wall 12b corresponding to the second side 11c-2. In the present embodiment, since the sides forming the outer shape of the mounting surface 11a are two first sides 11c-1 and two second sides 11c-2, the peripheral rib 12 consists of two first rib walls. 12a and two second rib walls 12b.

FIG. 3 is an enlarged view showing the structure around the bulging region 11a-3 surrounded by the dashed line in FIG. In FIG. 3, a straight imaginary line S1, which is a part of the first side 11c-1 and overlaps with one side forming the outer shape of the central region 11a-1, is shown. Further, a straight line that overlaps with one side forming the outer shape of the peripheral region 11a-2 as another part of the first side 11c-1 is indicated by a straight imaginary line S2. At this time, the bulging region 11a-3 is such that the imaginary line S1 is positioned outside the imaginary line S2 as if a portion of the first rib wall 12a were pushed out (expanded). there is

In this embodiment, a portion of the first rib wall 12a bulges outward so that the portion of the first side 11c-1 is substantially parallel to the other portion of the first side 11c-1. there is That is, the bulging region 11a-3 has a rectangular outer shape in a plan view surrounded by the first side 11c-1 in the central region 11a-1 indicated by hatching in FIG. 3 and the imaginary line S2. It is a region of shape.

The portion of the first side 11c-1 in which the bulging region 11a-3 is formed means that the midpoint of the entire first side 11c-1 overlaps and approximately one-third of the first side 11c-1. The part that contains the length. The area of the non-bulging region 11a-4 in the central region 11a-1 is approximately one third of the entire non-bulging region 11a-4 in the mounting surface 11a. Also, the areas of the two peripheral regions 11a-2 are substantially the same, and each is approximately one third of the entire non-expanded region 11a-4 on the mounting surface 11a.

Thus, the area of the non-expanded region 11a-4 in the central region 11a-1 is substantially the same as the area of one peripheral region 11a-2. However, the central region 11a-1 includes a bulging region 11a-3. Therefore, the central region 11a-1 is wider than the peripheral region 11a-2 by the area of the bulging region 11a-3.

In addition, bulging regions 11a-3 are formed at both ends in the longitudinal direction of the central region 11a-1. Therefore, the longitudinal length of the central region 11a-1 is longer than that of the peripheral region 11a-2.

In the present embodiment, among the sides forming the outer shape of the central region 11a-1 in plan view, the length of a part of the first side 11c-1 is a side perpendicular to the first side 11c-1. shorter than the length of Therefore, the longitudinal direction of the central region 11a-1 is the direction perpendicular to the first side 11c-1. However, the outer shape of the central region 11a-1 in plan view may be a shape whose longitudinal direction is parallel to the first side 11c-1. In this case, the length of the central region 11a-1 in the lateral direction is longer than the length of the peripheral region 11a-2 in the lateral direction.

Note that the area ratio between the central region 11a-1 and the peripheral region 11a-2 is not limited to the above. For example, the area of the central region 11a-1 may be smaller than the area of the peripheral region 11a-2. Even in this case, the longitudinal length of the central region 11a-1 is longer than the longitudinal length of the peripheral region 11a-2. Also, the areas of the two peripheral regions 11a-2 located on both sides of the central region 11a-1 do not have to be substantially the same.

In this manner, the central region 11a-1 includes the bulging region 11a-3, and thus has a longer longitudinal length than the peripheral region 11a-2. According to such a configuration, the central area 11a-1 includes the bulging area 11a-3, and is more flexible in size, arrangement, number and type of sushi to be placed than the peripheral area 11a-2. degree increases. As a result, in the central region 11a-1 where the line of sight of the consumer tends to concentrate, it becomes easier to devise the size and arrangement of the sushi placed in the central region 11a-1, and the appearance of the contents of the packaging container 100 can be improved. can do better.

Further, since the placement surface 11a is divided into the central area 11a-1 and the peripheral area 11a-2, different types of sushi can be placed in each area. As a result, the variety of the contents of the packaging container 100 is increased, so that the contents can be made in consideration of the good appearance.

(Protrusion)
A plurality of raised portions 11b are formed on the mounting surface 11a. The raised portion 11b is formed by a combination of ridges rising upward from the mounting surface 11a, and is formed to have a cross shape in a plan view. A total of 25 raised portions 11b are formed on the mounting surface 11a so as to be arranged at regular intervals. According to such a configuration, by using the protruding portion 11b as a mark, it becomes easy to align and place the pieces of sushi.

It should be noted that the plurality of raised portions 11b may not be arranged at regular intervals. Alternatively, only one raised portion 11b may be formed. In this case, for example, the raised portion 11b may be formed at the center of the placement surface 11a. Further, the shape of the raised portion 11b in a plan view is not limited to a cross shape, and any shape may be used as long as it serves as a mark for aligning and placing the pieces of sushi. Furthermore, the raised portion 11b may not be formed on the mounting surface 11a at all.

(peripheral rib)
The peripheral rib 12 is formed as a ridge extending upward from the peripheral edge of the mounting surface 11a over the entire circumference of the mounting surface 11a. The upper end surface of the peripheral rib 12 is a flat surface parallel to the mounting surface 11a, and has a curved surface with outwardly convex corners. FIG. 4 is a cross-sectional view taken along the line II--II shown in FIG. As shown in FIG. 4, the peripheral rib 12 has a uniform height H1 from the mounting surface 11a over the entire circumference of the mounting surface 11a. The height H1 is the shortest distance between a plane including the mounting surface 11 a and a plane including the upper end surfaces of the peripheral ribs 12 . That is, the height H1 is the length of a line segment connecting a plane including the mounting surface 11a and a plane including the upper end surfaces of the peripheral ribs 12 . This line segment is orthogonal to both the plane including the mounting surface 11 a and the plane including the upper end surfaces of the peripheral ribs 12 .

Here, "the height H1 is uniform" means that the shortest distance between a plane including the selected portion and a plane including the mounting surface 11a is the same regardless of which portion of the upper end surface of the peripheral rib 12 is selected. It means to be the same. Note that the "same" in "the same shortest distance" is a concept that assumes that differences within the range of manufacturing error are the same, and does not have to be the same in a strict sense.

With such a configuration, the appearance of the peripheral rib 12 has a sense of unity. As a result, the appearance of the contents of the packaging container 100 can be emphasized. It should be noted that the mounting portion 11 may be designed such that it curves slightly upward toward the center, and the mounting surface 11a may not be a completely flat surface. In this case, the plane including the mounting surface 11a that serves as the reference for the height H1 may be a plane that includes only the boundary portion between the mounting surface 11a and the peripheral rib 12 .

The peripheral rib 12 is formed at a position separated from the inner wall portion 14 . With such a configuration, a space is formed between the mounting surface 11 a and the inner wall portion 14 . Therefore, even when the sushi is placed on the entire placement surface 11a, it is difficult for the sushi to come into contact with the inner wall portion 14. As shown in FIG. Therefore, it is possible to prevent the inner wall portion 14 from being soiled by the liquid component or the like originating from the sushi and spoiling the appearance of the packaging container 100 as a whole. In addition, since a space is formed between the placing surface 11a and the inner wall portion 14 along the entire circumference of the placing portion 11a, the sushi is placed near the center of the placing portion 11, and all the four sides of the placing portion 11 are positioned inside the inner wall portion 14. A space can be left between them so that they can be placed together.

A portion of the peripheral rib 12 bulges outward, such as the portion where the bulging region 11a-3 is formed, and the portion where the interval between the peripheral rib 12 and the inner wall portion 14 is narrowed is The rib 12 and the inner wall portion 14 may be formed continuously. This makes it easier to form a wide bulging region 11a-3.

(protruding rib)
The protruding rib 13 protrudes inward from the peripheral rib 12 and is connected to the mounting surface 11a. The protruding rib 13 is a ridge formed continuously with the peripheral edge rib 12 on the mounting surface 11a. The protruding direction of the protruding rib 13 is inward from the peripheral rib 12 and perpendicular to the peripheral rib 12 which is the starting point of the protrusion. The projecting direction of the projecting rib 13 may be any direction as long as it is inside the peripheral rib 12, and may be in a direction other than perpendicular to the peripheral rib 12, which is the starting point of the projecting.

Five protruding ribs 13 are formed along each side of the peripheral rib 12 at regular intervals. According to such a configuration, the pieces of sushi can be placed in line on the placement surface 11a using the protruding ribs 13 as marks. As a result, it is possible to orderly and easily place the sushi on the desired area. Note that the number and intervals at which the projecting ribs 13 are formed are not limited to this.

The projecting rib 13 is composed of a first projecting rib 13a and a second projecting rib 13b. The first protruding rib 13a is the protruding rib 13 formed in the bulging region 11a-3 on the mounting surface 11a. The second projecting rib 13b is the projecting rib 13 formed in the non-expanded region 11a-4 on the mounting surface 11a. The length of the first projecting rib 13a in the projecting direction is longer than the length of the second projecting rib 13b in the projecting direction. That is, the length of the first projecting rib 13a in the projecting direction is different from the length of the second projecting rib 13b in the projecting direction.

With such a configuration, it is easy to distinguish between the central region 11a-1 and the peripheral region 11a-2 by looking at the first protruding rib 13a and the second protruding rib 13b. As a result, placement of the sushi on the desired area can be performed more orderly and more easily. In addition, it is not essential that the protruding rib 13 is composed of the first protruding rib 13a and the second protruding rib 13b having different lengths.

A plurality of second protruding ribs 13b protrude inward from the first rib wall 12a. In addition, all of the plurality of second projecting ribs 13b projecting inward from the first rib wall 12a have the same length in the projecting direction. In addition, "the same" in "the same length in the projecting direction" is a concept that the difference within the margin of manufacturing error is considered to be the same, and it does not have to be the same in a strict sense.

That is, as shown in FIG. 3, for a plurality of second projecting ribs 13b projecting from the first rib wall 12a, a linear imaginary line S3 abutting on the tip of each projecting direction corresponds to the first rib wall 12a. is approximately parallel to Similarly, in the present embodiment, the lengths in the projecting direction are all the same for the plurality of second projecting ribs 13b projecting inward from the second rib wall 12b. According to such a configuration, the appearance of the plurality of second protruding ribs 13b as a whole has a sense of unity.

Further, as shown in FIG. 3, the first projecting rib 13a is longer in the projecting direction than the second projecting rib 13b. The length of the first protruding rib 13a in the protruding direction is the length of the second protruding rib 13b in the protruding direction (the shortest distance from line S2 to line S3), and the length of the protruding region 11a-3 in the protruding direction. length (shortest distance from line S1 to line S2). In other words, when the tip of each of the plurality of second protruding ribs 13b protruding inward from the first rib wall 12a is brought into contact with the virtual line S3, the tip of the first protruding rib 13a in the protruding direction also abuts the imaginary line S3.

According to such a configuration, the first protruding rib 13a protruding inward from the first rib wall 12a and the plurality of second protruding ribs 13b as a whole have a more unified appearance. This sense of unity cancels out the presence of the bulging region 11a-3, and the bulging region 11a-3 is visually unnoticeable. This improves the appearance of the packaging container 100 around the mounting surface 11a.

Further, according to the configuration in which the outer shape of the packaging container 100 and the outer shape of the placement surface 11a are square in plan view, and the bulging region 11a-3 is visually unobtrusive, the outer shape of the packaging container 100 A sense of unity is created between the mounting surface 11a and the appearance around the mounting surface 11a. This further improves the appearance of the packaging container 100 as a whole.

Further, the projecting rib 13 includes a third projecting rib 13c in addition to the first projecting rib 13a and the second projecting rib 13b. Of the two second rib walls 12b, the third rib wall 12c is connected to the first rib wall 12a. It has a plurality (two in the present embodiment) of third protruding ribs 13c to be connected. The two third projecting ribs 13c are longer in the projecting direction than the second projecting ribs 13b projecting inward from the third rib wall 12c.

According to such a configuration, when placing sushi on the first area of the placement surface 11a, the plurality of third protruding ribs 13c can easily serve as a mark. Here, the first area is an area formed on the mounting surface 11a inside the tip of the third projecting rib 13c in the projecting direction of the third projecting rib 13c. On the other hand, a region other than the first region on the mounting surface 11a, specifically, is formed outside the tip of the third projecting rib 13c on the mounting surface 11a in a direction opposite to the projecting direction of the third projecting rib 13c. Let the area|region where it was done be the 2nd area|region.

The longer the length of the third projecting rib 13c, the larger the area of the second region. It becomes easier to place an article on the second area.

The two third projecting ribs 13c are located at the position closest to the first rib wall 12a among the second projecting rib 13b projecting inward from the third rib wall 12c and the third projecting rib 13c, and the first rib and the farthest position from the wall 12a. Even when three or more third protruding ribs 13c are formed, at least two of them are preferably formed at the positions as described above. According to such a configuration, when sushi is placed on the first area, the two third protruding ribs 13c formed at the positions closest and farthest from the first rib wall 12a are aligned with the third rib wall. It is particularly conspicuous among the plurality of protruding ribs 13 formed on 12c. Therefore, such a third projecting rib 13c is likely to serve as a mark for placing sushi.

<Shoulder and Outer Wall>
The shoulder portion 2 is a plate-like portion that extends outward from the upper end portion of the inner wall portion 14 of the housing recess 1 over the entire circumference of the inner wall portion 14 . The shoulder portion 2 is configured substantially horizontally with the mounting portion 11 . In plan view, the outer shape of the shoulder portion 2 is square like the mounting surface 11a. In this manner, when the outer shape of the shoulder portion 2 is similar to the outer shape of the placement surface 11a in plan view, the packaging container 100 as a whole has a unified appearance.

The outer wall portion 3 is a frame-like portion that extends downward from the outer end portion of the shoulder portion 2 over the entire circumference of the shoulder portion 2 . The outer wall portion 3 includes an outer wall 31 and a connecting wall 32 . As shown in FIG. 4 , the outer wall 31 constitutes four side walls of the packaging container 100 . The connecting wall 32 is formed at the corner of the outer wall portion 3 and is a portion that connects the outer walls 31 to each other.

The outer wall 31 is formed with a recess 31a. The recess 31a is a portion of the outer wall 31 that is recessed inward. The outer wall 31 is formed so as to expand linearly outward toward the bottom, but the recess 31a is formed to extend vertically downward without expanding outward.

According to the concave portion 31a, when stacking the empty packaging containers 100 during transportation, etc., the positions of the packaging containers 100 that overlap vertically are easily determined by the concave portion 31a. Further, the size or position of the recessed portion 31 a may be different for each outer wall 31 forming the outer wall portion 3 . According to such a configuration, when stacking two packaging containers 100, these packaging containers 100 can be stacked only when the concave portions 31a of corresponding shapes are in a direction in which they overlap each other. Therefore, when stacking a plurality of packaging containers 100, all packaging containers 100 can be reliably stacked in the same direction.

As shown in FIG. 4, the outer wall portion 3 has a uniform height H2 over the entire circumference. The height H2 of the outer wall portion 3 is the shortest distance between a plane including the upper end face of the shoulder portion 2 and a plane including the contact surface of the outer wall portion 3 . "Grounded" means placed on a workbench, a display stand (both not shown), or the like. The concept of "uniform height" is the same as the height H1 of the peripheral rib 12. FIG. According to such a configuration, a plurality of packaging containers 100 can be stably stacked.

[Containment mode in packaging container]
The manner in which items such as sushi are stored in the packaging container 100 will be described below with reference to FIG. FIG. 2 shows sushi 50 and sushi 51 accommodated in the packaging container 100 by dashed lines. Sushi 51 is a different kind of sushi from sushi 50 . The sushi 51 is formed larger than the sushi 50 and is the best-looking type of sushi among the sushi accommodated in the packaging container 100. - 特許庁

As shown in FIG. 2, on the placement surface 11a, the sushi 51 is placed on the central area 11a-1, and the sushi 50 is placed on the peripheral area 11a-2. In FIG. 2, it is assumed that the lower side of the paper is the front side, and the sushi 51 that looks good is arranged side by side in the central region 11a-1 of the placing surface 11a so as to be easily noticed by consumers. It is placed so that

Since the central region 11a-1 is formed with the bulging region 11a-3, the lateral width of the central region 11a-1 is wider than that of the peripheral region 11a-2 when viewed from the front side. Therefore, among the pieces of sushi to be placed on the placement surface 11a, sushi pieces 51 that are particularly large and have a good appearance are placed in the same number as the pieces of sushi 50 that are placed on one side of the peripheral region 11a-2. can be placed on

Also, for example, when the sushi 51 is substantially the same size as the sushi 50 but is relatively high-grade and popular, the central region 11a-1 contributes to improving the appearance. That is, even if the size of the sushi is the same, the central region 11a-1 including the bulging region 11a-3 can place more pieces of sushi 50 than the peripheral region 11a-2. It is easier to devise the placement. By placing the sushi 51 in the central region 11a-1 in this manner, the overall appearance of the sushi accommodated in the packaging container 100 can be improved regardless of the size of the sushi 51. FIG.

In addition to the sushi 51, an article such as a decorative flower that makes the sushi 51 look better may be placed on the central area 11a-1. Even in this case, the same number of pieces of sushi 51 as the pieces of sushi 50 placed on the peripheral region 11a-2 can be placed on the central region 11a-1 while placing the relevant items. In this way, according to the central area 11a-1, it is possible to additionally place items that improve the appearance of the sushi 51 without impairing the voluminous feel of the sushi 51 placed thereon. Therefore, it is easy to make the overall appearance of the sushi contained in the packaging container 100 look gorgeous.

In addition, items other than sushi may be included in the foodstuffs accommodated in the packaging container 100 . For example, the packaging container 100 may contain vegetables such as asparagus. In this case, asparagus, which is particularly thick and long and looks good, can be easily placed on the central region 11a-1 in which the bulging region 11a-3 is formed. Therefore, asparagus with a good appearance is naturally arranged in the central region 11a-1, which is easily visible to consumers, so that the appearance of the whole vegetables such as asparagus accommodated in the packaging container 100 is improved. As described above, the object to be contained in the packaging container 100 is preferably an elongated product.

Also, FIG. 2 shows an example in which the longitudinal direction of the central region 11a-1 is the lateral direction with respect to the front surface of the packaging container 100, but the longitudinal direction of the central region 11a-1 It may be formed so as to be vertical to the front of the. That is, among the sides forming the outer shape of the mounting surface 11a, the bulging regions 11a-3 are formed not on the left and right sides of the front surface of the packaging container 100, but on the upper and lower sides. may be formed.

In this case, spiny lobster, for example, can be placed on the central region 11a-1 so that its head faces upward when viewed from the front side of the packaging container 100. FIG. Therefore, it is possible to place the spiny lobster on the mounting surface 11a by the arrangement that maximizes the luxury of the spiny lobster. With such a configuration, the orientation of the central region 11a-1 in the longitudinal direction with respect to the front surface of the packaging container 100 can be changed according to the type of foodstuffs contained in the packaging container 100. FIG. Therefore, the packaging container 100 can accommodate foodstuffs in an arrangement that gives the most gorgeous appearance depending on the type of foodstuffs.

There are no particular restrictions on the items constituting the foodstuffs accommodated in the packaging container 100, and they may be any foodstuffs traded in supermarkets, retail stores, or the like, such as meat, seafood, vegetables, and fruits. In addition, the items to be stored in the packaging container 100 are not limited to foodstuffs. The packaging container 100 can also be suitably used to store items such as gift sets where appearance is important.

[Modification]
A modification of the packaging container 100 will be described with reference to FIG. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(External shape of bulging area)
Various variations can be adopted for the configuration of the packaging container 100 . For example, as indicated by reference numeral 501 in FIG. 5, the packaging container 100 may be formed with a first rib wall 22a having a shape different from that of the first rib wall 12a. The first rib wall 22a differs from the first rib wall 12a in the shape of the portion forming the outline of the bulging region 21a-3 in plan view. Therefore, in the packaging container 100 according to this modified example, a bulging region 21a-3 having a different outer shape in plan view than the bulging region 11a-3 is formed.

The outer shape of the bulging region 21a-3 in a plan view is a semi-elliptical shape with a curved portion located on the outside. Like the bulging region 21a-3, the shape of the bulging region formed in the packaging container 100 in plan view is not limited to a rectangular shape. Like the first rib wall 22a, the portion forming the bulging region 21a-3 may be curved and bulging outward.

According to such a configuration, the outwardly bulging portion of the first rib wall 22a is curved. Therefore, even if the bulging region 21a-3 is formed to have a size that can be easily visually recognized by the consumer, the bulging region 21a-3 is more difficult for the consumer to see than when the outer shape of the bulging region 21a-3 is rectangular. It does not give an angular and hard image to This makes it easier to form the bulging region 21a-3 large, making it easier to devise the size and arrangement of sushi to be placed in the central region 21a-1 including the bulging region 21a-3. The appearance of the contents of 100 can be further improved.

Such an effect is particularly remarkable when the external shape of the mounting surface 11a in plan view is not square but circular or the like. The shape forming the outer shape of the bulging region 21a-3 in a plan view is not particularly limited, and may be, for example, a triangular shape having a vertex on the outside.

As indicated by reference numeral 501 in FIG. 5, one first protruding rib 13a is formed in the bulging region 21a-3, but the number of first protruding ribs 13a is not limited to this. For example, two or more first protruding ribs 13a may be formed, or no first protruding ribs 13a may be formed, depending on the length of the portion of the first rib wall 22a forming the bulging region 21a-3. may With such a configuration, an appropriate number of first projecting ribs 13a can be formed depending on the length of the portion of the first rib wall 22a that forms the bulging region 21a-3. Therefore, the first protruding rib 13a can function as a mark for placing the sushi on a desired area without giving an uncomfortable appearance around the placement surface 11a of the packaging container 100. FIG.

(Number of bulging regions)
In addition, the packaging container 100 may not have the bulging regions 11a-3 formed on both of the two opposing sides out of the sides forming the outer shape of the mounting surface 11a. Like the central region 31a-1 indicated by reference numeral 502 in FIG. 5, the bulging region 11a-3 may be formed only on one side forming the outer shape of the mounting surface 11a. That is, in this modification, each side forming the outer shape of the mounting surface 11a is composed of one first side 11c-1 and three second sides 11c-2. Correspondingly, the peripheral rib 12 is composed of one first rib wall 12a and three second rib walls 12b.

In this case, the second rib wall 12b corresponding to the second side 11c-2 opposed to the first side 11c-1 is not connected to the first rib wall 12a, so it is not the third rib wall 12c. Therefore, the third projecting rib 13c is not formed on the second rib wall 12b.

Even in this case, the central region 31a-1 is configured as a region including the center of the mounting surface 11a and one bulging region 11a-3. The central area 31a-1 includes one bulging area 11a-3, and has a greater degree of freedom in variations in size, arrangement, number and type of sushi to be placed than the peripheral area 11a-2. increase. Therefore, such a central region 31a-1 makes it easier to devise the size and arrangement of sushi to be placed, as in the case of including two bulging regions 11a-3.

Further, as indicated by reference numeral 502 in FIG. 5, the mounting surface 11a of the packaging container 100 does not have to be formed with the raised portion 11b. If the mounting surface 11a is not provided with the raised portion 11b, it becomes a flat and uniform surface, and the appearance of the packaging container 100 can be configured simply. Further, if the placing surface 11a is provided with the protruding ribs 13, it is possible to use the protruding ribs 13 instead of the protruding portions 11b as a guide for arranging sushi on the placing surface 11a.

[Additional notes]
The present invention is not limited to the embodiments and modifications described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining technical means disclosed in the embodiments and modifications described above are also included in the technical scope of the present invention.

1 accommodation recess 2 shoulder 3 outer wall 11 mounting portion 11a mounting surfaces 11a-1, 21a-1, 31a-1 central region 11a-2 peripheral regions 11a-3, 21a-3 bulging region 11a-4 non Bulging area (area other than bulging area)
11c-1 First side 11c-2 Second side 12 Peripheral ribs 12a, 22a First rib wall 12b Second rib wall 12c Third rib wall 13 Projecting rib 13a First projecting rib 13b Second projecting rib 13c Third projecting rib 50, 51 Sushi (contained object)
100 packaging container S3 virtual line

Claims (5)

an accommodation recess in which an object to be accommodated is accommodated;
a shoulder extending outward from the upper end of the receiving recess;
an outer wall extending downward from the outer end of the shoulder,
The accommodation recess is
a placement surface on which the object to be accommodated is placed;
a peripheral edge rib rising from the peripheral edge of the mounting surface,
The peripheral rib has a uniform height from the mounting surface,
The mounting surface is composed of a central region including the center of the mounting surface and peripheral regions formed on both sides of the central region,
The packaging container, wherein the central region includes a bulging region formed outside the peripheral region. 2. The packaging container according to claim 1, wherein the accommodation recess has a protruding rib that protrudes inward from the peripheral rib and connects with the mounting surface. The protruding rib is composed of a first protruding rib formed in the bulging region and a second protruding rib formed in a region other than the bulging region on the mounting surface,
The packaging container according to claim 2, wherein the length of the first projecting rib in the projecting direction is different from the length of the second projecting rib in the projecting direction. The outer shape of the packaging container and the outer shape of the mounting surface are rectangular in plan view,
Each of the sides forming the outer shape of the mounting surface includes a first side partly forming the outer shape of the bulging region and a second side forming the outer shape of the region other than the bulging region on the mounting surface. configured,
The peripheral rib is composed of a first rib wall corresponding to the first side and a second rib wall corresponding to the second side,
A plurality of the second projecting ribs project inward from the first rib wall,
the plurality of second protruding ribs protruding inward from the first rib wall have the same length in the protruding direction,
When the tip of each of the plurality of second projecting ribs projecting inward from the first rib wall is brought into contact with a straight imaginary line, the tip of the projecting direction of the first projecting rib 4. The packaging container according to claim 3, wherein also abuts said imaginary line. the peripheral rib includes two or three of the second rib walls;
If, of the two or three second rib walls, the one connected to the first rib wall is the third rib wall,
The accommodation recess has a plurality of third protruding ribs that protrude inward from the third rib wall and are connected to the mounting surface,
The plurality of third protruding ribs are longer in the protruding direction than the second protruding ribs protruding inward from the third rib wall,
The plurality of third protruding ribs are formed at positions closest to the first rib wall among the second protruding rib protruding inward from the third rib wall and the plurality of third protruding ribs. and formed furthest from said first rib wall.

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