Packaging container

Abstract

To provide a packaging container which prevents the positional deviation or spreading of food in the packaging container.SOLUTION: A packaging container includes a container part defining a part for placing food and a flange part provided on an outer periphery of the container part, the flange part has an inner-fitting type fitting part for attaching a lid body, the container has a container bottom part on which food is placed, and a container wall part including an inner wall surface extending from an edge of the container bottom part all around the circumference at an incline upward and outward and an outer wall surface extending from an upper end part of an inner wall surface at an incline downward and outward, the height difference between the container bottom part and the container wall part is 5 mm or more, and the container further includes a leg part that is located outside the container part and protrudes downward from the container bottom part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a packaging container used, for example, when storing food, and more particularly to a packaging container that prevents food from shifting or spreading within the packaging container. [Background technology]

[0002] Conventionally, food packaging containers sold at retail stores such as supermarkets and convenience stores have had a separate container placed inside them or a low, circular wall provided at the bottom of the packaging container to prevent the food from shifting or spreading out. For example, the assembled container described in Patent Document 1 is placed inside another container after assembly, and food is then served inside the assembled container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-26149 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional technology, it is not only time-consuming to assemble the assembled container, but also to place it inside the container. Furthermore, unless the assembled container is fixed inside the container, there is a risk that the assembled container itself may become misaligned. Therefore, if another vessel-shaped part is integrally molded inside the container, it may be possible to avoid the above-mentioned time-consuming and risky process.

[0005] In addition, a wall portion that is provided around the bottom of a packaging container and is low is unlikely to function as a container. In other words, since the wall portion is too low relative to the bottom and the food, it is difficult to prevent the food itself from shifting or spreading, even if it can prevent the food juice from flowing and spreading. For this reason, if the bottom and wall portion form a container-like portion, there is a possibility that the food can be placed stably.

[0006] Furthermore, having a separate bowl-like part inside the container can make it difficult to see the food served on the container, or can cause food to get caught between the lid and the bowl-like part when the lid is closed, or cause food to stick to the lid, so the container should be designed to avoid these problems.

[0007] To provide a packaging container which is expected to have the effect of preventing food placed in the vessel-shaped portion from becoming difficult to see, preventing the food from being pinched by the lid and sticking to the lid, and preventing the food from shifting position or spreading inside the container body. [Means for solving the problem]

[0008] In order to solve the above problems, the packaging container of the present invention comprises a vessel portion which defines an area on which food is placed, and a flange portion provided on the outer periphery of the vessel portion, the flange portion having an internal fitting type fitting portion for attaching a lid body, the vessel portion having a vessel bottom portion on which food is placed, and a vessel wall portion having an inner wall surface which extends sloping upward and outward around the entire circumference from the edge of the vessel bottom portion, and an outer wall surface which extends sloping downward and outward from the upper end of the inner wall surface, the height difference between the vessel bottom portion and the vessel wall portion being 5 mm or more, and the container further comprises legs which are located on the outside of the vessel portion and protrude downward from the vessel bottom portion.

[0009] It is desirable that the vessel wall portion rises from the edge of the vessel bottom portion all around the periphery.

[0010] It is desirable that the height of the upper end of the vessel wall portion varies continuously in the circumferential direction.

[0011] It is preferable that the container further includes a flange portion located outside the container portion and continuous with the container portion and the leg portion, and an upper end portion of the container wall portion is located higher than an upper end portion of the flange portion.

[0012] The container portion is formed from a thermoplastic resin sheet so that the contents can be seen after molding, and it is desirable that a printed layer is laminated on the container portion.

[0013] The packaging container is preferably made of polyethylene terephthalate.

[0014] It is desirable that the packaging container is a container body, and that the packaging container comprises the container body and a lid to be attached to the container body.

[0015] It is desirable that side dishes or sashimi are served in the container body. Effect of the Invention

[0016] The packaging container of the present invention is expected to have the following effects: the food placed in the container is not difficult to see, the food is not easily pinched by the lid, the food is prevented from sticking to the lid, and the food is less likely to shift position or spread inside the container body. In other words, it is possible to bring variety to the sales floor with a sales method that is different from the conventional one. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a perspective view of a packaging container according to the present embodiment. [Diagram 2] FIG. 2 is a plan view of the packaging container. [Diagram 3] FIG. 3 is an enlarged QQ end view of the PP portion of FIG. 2. [Figure 4] FIG. 2 is a bottom view of the packaging container. [Diagram 5] FIG. 2 is a right side view of the packaging container. [Figure 6] FIG. 2 is a front view of the packaging container. [Figure 7] FIG. 2 is a perspective view of another packaging container according to the present embodiment. [Figure 8] FIG. 2 is a plan view of the packaging container. [Figure 9] FIG. 2 is a bottom view of the packaging container. [Figure 10] FIG. 2 is a right side view of the packaging container. [Figure 11] FIG. 2 is a front view of the packaging container. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] A packaging container according to one embodiment of the present invention will be described below with reference to Figures 1 to 6. The left side view is equivalent to the right side view, and the front view is equivalent to the rear view, so they will be omitted. In these drawings, when there are multiple identical parts, only one part is numbered. For ease of explanation, certain parts and their leading lines are shown with hidden lines (dashed lines) or imaginary lines (two-dot chain lines), and cross sections are shown with hatching. In the description, terms indicating directions such as upper, lower, side, vertical direction, horizontal direction, etc. basically refer to the positional relationship in a state in which the packaging container is placed in the orientation for normal use.

[0019] As shown in Figures 1 and 2, this packaging container comprises a container body M to which a lid N is attached. The container body M is substantially rectangular in plan view and comprises a vessel portion 1 that defines an area for placing food, and a flange portion 2 and a leg portion 3 that are provided continuously from the outer periphery of the vessel portion 1. The container body M may be square, circular, or elliptical in plan view. The food may be sashimi, sushi, salad, side dishes, or various other bento ingredients, without any particular limitation.

[0020] The container portion 1 is a portion that is integrally formed on the inside of the container body M. The container portion 1 has a flat container bottom portion 11 on which food is placed, and a container wall portion 12 that rises from the edge of the container bottom portion 11 and inclines outward all around. As shown in Fig. 3, the container wall portion 12 has an inner wall surface 12c and an outer wall surface 12d that is steeper inclined than the inner wall surface 12c. The angle α of the inner wall surface 12c with respect to the horizontal plane is 30° to 80°, preferably 40° to 70°, and more preferably 50° to 60°. If the angle is less than 30°, the height of the container wall portion 12 becomes too small, and if the angle is more than 80°, the container wall portion 12 may become sharp. The angle β of the outer wall surface 12d is 70° to 85°, preferably 73° to 82°, more preferably 75° to 80° with respect to the horizontal plane. If it is less than 70°, the height of the vessel wall portion 12 becomes too small, and if it is more than 85°, the vessel wall portion 12 may become sharp. The upper end of the vessel wall portion 12 has a height that changes continuously in the circumferential direction, and has a vessel wall first upper end portion 12a and a vessel wall second upper end portion 12b that is shorter and higher than the vessel wall first upper end portion 12a. As shown in FIG. 5, the height difference h between the vessel bottom portion 11 and the vessel wall first upper end portion 12a is 5 mm or more. With this configuration, the food served in the vessel portion 1 is not difficult to see, the food is prevented from being pinched by the lid body N, and the food is not likely to spread inside the container body M and is unlikely to shift position. In particular, when the food is sashimi, the garnish that underlies the sashimi is also less likely to spread, so the sashimi can be served stably even with less garnish than usual. The vessel wall portion 12 may be square, circular, or elliptical in plan view. The height of the upper end of the vessel wall portion 12 may vary continuously. The height of the vessel wall first upper end portion 12a and the height of the vessel wall second upper end portion 12b may be equal to each other, or the height of the vessel wall second upper end portion 12b may be lower.

[0021] The flange 2 is located outside the vessel 1, is provided continuous with the vessel 1 and the leg 3, is generally rectangular in plan view, has the same height all around, and has an external fitting portion (not shown) for attaching the lid N continuously around the circumference. The height of the upper end of the flange 2 is lower than the upper end of the vessel wall 12 all around. The flange portion 2 may be square, circular, or elliptical in plan view. The fitting portion may be of an internal fitting type or an internal and external fitting type. The flange portion 2 may have a portion higher than the upper end of the vessel wall portion 12. The horizontal distance between the inner peripheral edge of the flange portion 2 and the outer peripheral edge of the vessel portion 1 may be 5 mm to 10 mm. If it is shorter than 5 mm, there is a risk that the food may be pinched by the lid body N, and if it is longer than 10 mm, there is a risk that the vessel portion 1 may be small compared to the container body M, resulting in a poor appearance. The height difference between the upper end of the flange portion 2 and the first upper end portion 12a of the vessel wall may be 3 mm to 20 mm, preferably 5 mm to 10 mm. If it is shorter than 3 mm, there is a risk that the food may be pinched by the lid body N, and if it is longer than 20 mm, there is a risk that the food may be difficult to see.

[0022] The leg portion 3 is located outside the vessel portion 1 and protrudes downward from the vessel bottom portion 11. When viewed in a plane, the leg portion 3 is located at a corner portion of the container body M and is formed continuously from the outer peripheral edge of the vessel portion 1 to the inner peripheral edge of the flange portion 2. The height difference between the bottom 11 of the container and the lower end of the leg 3 that comes into contact with the table when placed on the table may be 5 to 10 mm. If it is less than 5 mm, the position of the bottom 11 of the container may be too low, which may result in poor appearance of the food, and if it is more than 10 mm, it may become difficult to stack the packaging containers on top of each other.

[0023] The container body M is made of a transparent sheet made of polyester resin such as polyethylene terephthalate, and a printed layer is laminated on the bottom 11 and wall 12 of the container part 1. With this configuration, the container part 1 with the printed layer stands out compared to other parts including the flange part 2 and the leg part 3, as well as the lid body N, giving the consumer the illusion that the container part 1 is built into the container body M separately, creating a sense of luxury. The pattern, color, and design of the printed layer may be any. The printed layer of the container part 1 may be laminated by fixed-position printing using compressed air molding. The printed layer may be printed directly on the sheet, or a printed film may be laminated on the sheet.

[0024] The lid body N is approximately rectangular in plan view and has a planar top surface portion not numbered, a lid body side wall portion sloping downward and outward from the outer peripheral edge of the top surface portion, and a lid body fitting portion provided outward from the lower edge of the lid body side wall portion. The lid N may be square, circular, or elliptical in plan view. When the lid N is attached to the container body M, the horizontal distance between the upper end of the container wall 12 and the lid side wall may be 5 mm to 10 mm. If it is closer than 5 mm, the lid N may pinch the food, and if it is farther than 10 mm, the container part 1 may be small compared to the container body M, resulting in a poor appearance. When the lid N is attached to the container body M, the height from the container bottom 11 to the top surface may be 40 to 50 mm. If it is less than 40 mm, the height of the contents will be low, and if it is more than 50 mm, the distance between the top surface and the contents may be too large.

[0025] Next, Figs. 7 to 11 show another packaging container in one embodiment of the present invention, and only the parts that differ from the packaging container described above will be described. In addition, for ease of reference, the same parts as those shown in Figs. 1 to 6 are numbered by adding 100 in Fig. 7, and the reference numbers are omitted in Figs. 8 to 11.

[0026] 7, the flange portion 102 of the container body 100M has an internal fitting type fitting portion not numbered. Therefore, compared to a container body having a flange portion with an external fitting type fitting portion, the inclination of the inner wall surface and the outer wall surface of the container wall portion 112 is formed to be steeper. With this configuration, the volume of the container portion 101 can be made relatively larger, and the horizontal distance between the inner peripheral edge of the flange portion 102 and the outer wall surface of the container wall portion 112 can be made wider.

[0027] In addition, the container body M and the lid body N in this embodiment may be formed by thermoforming a synthetic resin sheet, for example, by sheet molding such as vacuum molding, hot plate pressure molding, vacuum pressure molding, double-sided vacuum molding, etc. As the synthetic resin sheet, for example, a polyester-based resin such as polyethylene terephthalate, a styrene-based resin such as polystyrene, or an olefin-based resin such as polypropylene may be used as a single-layer or multi-layer sheet. As the resin, for example, a foamed resin is preferably used because it is lightweight and has heat insulating properties. Furthermore, the front or back surface of the sheet may be covered with a synthetic resin film, and if the front surface is covered, printing may be performed. There is no particular limit to the thickness of the synthetic resin sheet. [Explanation of symbols]

[0028] M Container body N Lid 1 vessel 11 Bottom of the vessel 12 Vessel wall part 2 Flange 3 legs

Claims

1. The container has a portion for partitioning an area on which food is placed, and a flange portion provided on the outer periphery of the container, The flange portion has an inner-fitting type fitting portion for attaching a lid body, The container has a bottom portion on which food is placed, and a container wall portion including an inner wall surface extending from the edge of the bottom portion all around the circumference at an incline upward and outward, and an outer wall surface extending from an upper end of the inner wall surface at an incline downward and outward, The height difference between the bottom and the wall of the vessel is 5 mm or more, The container further includes a leg portion located outside the container and protruding downward from the bottom of the container. A packaging container characterized by:

2. The height of the upper end of the vessel wall varies continuously in the circumferential direction.

2. The packaging container according to claim 1.

3. The flange portion is provided continuously with the container portion and the leg portion, The upper end of the vessel wall is located higher than the upper end of the flange.

2. The packaging container according to claim 1.

4. The container is made of a thermoplastic resin sheet and is molded so that the contents can be seen after molding. A printing layer is laminated on the container portion.

4. The packaging container according to claim 1 .

5. The packaging container according to any one of claims 1 to 4 is made of polyethylene terephthalate. A packaging container characterized by:

6. The packaging container according to any one of claims 1 to 5 is a container body, The container body and the lid body to be attached to the container body are provided. A packaging container characterized by:

7. The container body is filled with side dishes or sashimi.

7. The packaging container according to claim 6.

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