Container lid and container

Abstract

To provide a lid body of a container which has high heat resistance, discharges water droplets adhering to a top surface part, and can suppress accumulation of the water droplets on the top surface part.SOLUTION: The lid body of the container includes a top surface portion, a flange portion surrounding the top surface portion, and a first side surface portion and a second side surface portion that are located between the top surface portion and the flange portion and extend along the flange portion and are separated from each other, the top surface portion including a first portion between the first side surface portion and the second side surface portion, a second portion located at a center of the top surface portion, and a third portion between the first side surface portion and the second portion, a height of the third portion being higher than a height of the first portion and a height of the second portion, the height of the second portion is greater than the height of the first portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] SUMMARY OF THE INVENTION An embodiment of the present invention relates to a lid for a container. Also, an embodiment of the present invention relates to a container. [Background technology]

[0002] In nursing homes and hospitals, chilled food must be reheated using heating equipment before being served to patients. Traditionally, melamine tableware has been used to store food, but because melamine tableware requires washing after serving the food, which requires a lot of time and manpower, and because of the need to prevent infection, disposable containers have recently been used instead. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-255067 [Patent Document 2] Japanese Patent Application Publication No. 2023-127370 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when reheating food using hot air and steam, the interior of the heating appliance becomes hot and humid, so disposable containers must be heat-resistant. Furthermore, because the heating appliance uses hot air and steam to heat food, there is a problem of water droplets accumulating on the top surface of the lid of the disposable container. Furthermore, when the lid is opened after heating the food, the water droplets accumulated on the top surface of the lid get into the food, diluting the food's flavor.

[0005] In view of the above problems, one object of one embodiment of the present invention is to provide a container lid that is highly heat resistant and allows water droplets that accumulate on the top surface to be easily drained. Another object of one embodiment of the present invention is to provide a container that is highly heat resistant and allows water droplets that accumulate on the top surface of the lid to be easily drained. [Means for solving the problem]

[0006] A lid for a container according to one embodiment of the present invention has a top surface portion, a flange portion surrounding the top surface portion, and first and second side surface portions located between the top surface portion and the flange portion, extending along the flange portion and spaced apart from each other, wherein the top surface portion has a first portion between the first and second side surface portions, a second portion located in the center of the top surface portion, and a third portion between the first and second side surface portions, wherein the height of the third portion is greater than the height of the first portion and the height of the second portion, and the height of the second portion is greater than the height of the first portion.

[0007] In the container lid, the first portion, the second portion, and the third portion may be successively inclined.

[0008] In the lid for the container, the first portion may have a rib portion that is recessed toward the center of the top surface portion.

[0009] In the above-mentioned container lid, the third portion may have a flat plane portion.

[0010] The lid of the container may further include a protrusion located between the first side surface portion and the first portion and protruding in a height direction.

[0011] The lid for the container may further include a skirt portion surrounding the flange portion, and the skirt portion may have a fitting portion that is recessed toward the center of the top surface portion.

[0012] A container according to one embodiment of the present invention includes the above-described lid and a container body that fits with the lid. [Effects of the Invention]

[0013] The lid of a container according to one embodiment of the present invention is highly heat-resistant, allowing water droplets adhering to the top surface to drain away and prevent them from accumulating on the top surface. The container according to one embodiment of the present invention is highly heat-resistant, allowing water droplets that accumulate on the top surface of the lid to drain away and prevent them from accumulating on the top surface. Because there is little or no water droplets accumulating on the top surface, the work of removing water droplets before serving reheated meals can be reduced. Furthermore, because there is little or no water droplets that get into the contents, such as food, when the lid is opened, delicious meals can be served without problems such as water droplets diluting the flavor of the food. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic perspective view of a container according to an embodiment of the present invention. [Figure 2] 1 is a schematic top view of a lid for a container according to an embodiment of the present invention. [Figure 3] 1 is a schematic end view of a lid for a container according to an embodiment of the present invention. [Figure 4] 1 is a schematic perspective view of a container according to an embodiment of the present invention.

[0015] Hereinafter, each embodiment of the invention disclosed in this application will be described with reference to the drawings. However, the present invention can be embodied in various forms without departing from the spirit of the invention, and should not be construed as being limited to the description of the embodiments exemplified below.

[0016] In the drawings referred to in this embodiment, identical parts or parts having similar functions are designated by the same or similar reference numerals (reference numerals simply suffixed with -1, -2, etc.), and repeated explanations thereof may be omitted. Also, for convenience of explanation, the dimensional ratios of the drawings may differ from the actual ratios, and some components may be omitted from the drawings.

[0017] Furthermore, in the drawings referred to in this embodiment, mutually perpendicular axes "D1," "D2," and "D3" are depicted, with "D1" corresponding to the depth direction of the container or lid, "D2" corresponding to the width direction of the container or lid, and "D3" corresponding to the height direction of the container or lid. For the container or lid, a horizontal plane is defined by "D1" and "D2." For the container or lid, the height direction indicated by "D3" defines whether the container or lid is high or low, with the direction of the "D3" arrow being high or upward, and the direction opposite to the direction of the "D3" arrow being low or downward.

[0018] Furthermore, in the detailed description of the present invention, when defining the positional relationship between one component and another, the terms "inside" and "outside" refer to the direction toward the center of the container or lid, and the direction from the center of the container or lid toward the outside.

[0019] First Embodiment A container according to one embodiment of the present invention will be described with reference to Fig. 1. Fig. 1 is a schematic perspective view of a container according to one embodiment of the present invention. Fig. 2 is a schematic top view of a lid according to one embodiment of the present invention. Fig. 3 is a schematic end view of a lid according to one embodiment of the present invention. Specifically, Fig. 3 is a schematic end view between AB shown in Fig. 2.

[0020] (container) 1, the container 10 has a lid 100 and a container body 200. The container body 200 can be fitted to the lid 100, and food and the like can be stored in the container 10.

[0021] As shown in FIGS. 1 and 2, the container 10 may have a nearly circular shape. The container 10 is molded using a non-foaming resin material. In this example, the container 10 is molded from a material that is a mixture of polypropylene, talc, and biomass material. The use of the above-mentioned mixed material can reduce physical impact. Furthermore, the use of the above-mentioned material can prevent the container from shrinking or deforming even when heated using a heating device that uses hot air and steam. Furthermore, the use of the above-mentioned material can similarly prevent the container from shrinking or deforming even when heated using a heating device such as a microwave oven. Therefore, a user can easily heat food by directly heating the container 10 in a heating device and even keep it warm. Note that the present embodiment is not limited to the above-mentioned materials. Other resin materials may also be used, such as olefin-based resins such as polyethylene and polypropylene, polystyrene paper (PSP) made from polystyrene-based resins, high impact polystyrene (HIPS) in which GP polystyrene is blended with an elastomer such as butadiene copolymer to improve impact resistance, and polyester-based resins such as polyethylene terephthalate.

[0022] (lid) The lid 100 is preferably transparent. It is preferable to use a material with even greater transparency than the above-mentioned materials for the lid 100. The transparency of the lid 100 allows the contents of the container 10 to be visually observed without removing the lid 100 from the container body, and the contents can be provided hygienically and accurately while still warm.

[0023] The lid 100 has a flange portion 102, a side portion 104, and a top surface portion 106. The lid 100 may have a skirt portion 108. The skirt portion 108, the flange portion 102, the side portion 104, and the top surface portion 106 are arranged toward the inside of the lid 100 in the above-mentioned order.

[0024] The skirt portion 108 is provided on the periphery of the lid body 100. The skirt portion 108 is provided so as to surround the flange portion 102. The skirt portion 108 is connected to the flange portion 102. As shown in FIG. 1 , the skirt portion 108 extends downward from the outside of the flange portion 102. The skirt portion 108 may be provided with a fitting portion 110, which is used to fit the lid body 100 and the container body 200 together. The fitting portion 110 may be recessed toward the inside of the lid body 100 or the top surface portion 106.

[0025] The flange portion 102 is provided on the inside of the skirt portion 108. The flange portion 102 is provided so as to surround the top surface portion 106. The flange portion 102 is arranged along the periphery of the top surface portion 106. The flange portion 102 is arranged in a position corresponding to the flange portion 206 of the container body 200 when the container body 200 and the lid body 100 are fitted together. In this way, by providing the flange portion 102, sufficient pressure can be applied when coming into contact with the flange portion 206 of the container body 200, and the lid body 100 and the container body 200 can be easily fitted together.

[0026] The side surface portion 104 is provided inside the flange portion 102. The side surface portion 104 is arranged along the flange portion 102. The side surface portion 104 is provided so as to surround the top surface portion 106. The side surface portion 104 is arranged between the flange portion 102 and the top surface portion 106. The side surface portion 104 extends from the flange portion 102 to the top surface portion 106.

[0027] The side surface portion 104 includes a plurality of side surfaces 104, which are spaced apart from one another. As shown in Figures 1 and 2, the side surface portion 104 includes a side surface portion 104-1, a side surface portion 104-2, and a side surface portion 104-3, which are spaced apart from one another.

[0028] The side surface portion 104 may be provided with a rib portion that improves the strength of the side surface portion 104, or a stack portion that prevents adhesion or tilting when multiple container bodies 200 are stacked. The rib may have a groove in the direction from the flange portion 102 toward the top surface portion 106. The stack portion is preferably provided in contact with the flange portion 102.

[0029] The top surface portion 106 may be circular or rectangular with rounded corners. The top surface portion 106 is not limited to the above-mentioned shape. The top surface portion 106 is disposed inside the flange portion 102. The top surface portion 106 is provided in an area surrounded by the flange portion 102.

[0030] The top surface portion 106 has a first portion 1061, a second portion 1062, and a third portion 1063, each having a different height. The first portion 1061 is provided along the flange portion 102. The first portion 1061 is disposed between adjacent side surface portions 104. For example, as shown in FIG. 2, the first portion 1061-1 is located between the side surface portion 104-1 and the side surface portion 104-2, the first portion 1061-2 is located between the side surface portion 104-2 and the side surface portion 104-3, and the first portion 1061-3 is located between the side surface portion 104-3 and the side surface portion 104-1. The second portion 1062 is located in the center of the top surface portion 106. The third portion 1063 is provided along the side surface portion 104. The third portion 1063 is disposed between the side surface portion 104 and the center of the top surface portion 106 or between the second portion 1062. For example, as shown in FIG. 2, the third portion 1063-1 is located between the side portion 104-1 and the second portion 1062, the third portion 1063-2 is located between the side portion 104-2 and the second portion 1062, and the third portion 1063-3 is located between the side portion 104-3 and the second portion 1062.

[0031] The first portion 1061, the second portion 1062, and the third portion 1063 are each slanted and continuous. For example, as shown in FIG. 3, the first portion 1061 and the second portion 1062 are slanted and continuous, and the second portion 1062 and the third portion 1063 are slanted and continuous. Furthermore, as shown in FIGS. 1 to 3, the third portion 1063 is also slanted and continuous with the first portion 1061. The heights of the first portion 1061, the second portion 1062, and the third portion 1063 decrease in the order described above. In other words, the height 1063h of the third portion 1063 is higher than the height 1061h of the first portion 1061 and the height 1062h of the second portion 1062, and the height 1062h of the second portion 1062 is higher than the height 1061h of the first portion 1061. The height of the third portion 1063, the second portion 1062, and the first portion 1061 is the distance from the surface surrounded by the flange portion 102 or the straight line connecting the flange portions 102 (the dotted line shown in FIG. 3) to the upper surface of the top surface portion 106 in each portion, as shown in FIG. 3.

[0032] By providing the top surface 106 with portions of different heights in this manner, when water droplets adhere to the top surface 106, the water droplets flow from the third portion 1063 toward the first portion 1061 and are discharged to the outside of the lid 100. FIG. 3 shows the top surface 106 sloping from the third portion 1063-3 to the first portion 1061-1, and illustrates an example in which water droplets flow from the third portion 1063-3 to the first portion 1061-1 via the second portion 1062, but the path along which the water droplets flow is not limited to this. For example, the water droplets may flow from the third portion 1063-3 to the first portion 1061-3 via the second portion 1062 as shown in FIG. 2, or may flow directly from the third portion 1063-3 to the first portion 1061-3 without passing through the second portion 1062. Furthermore, for example, water droplets that have accumulated in second portion 1062 may flow toward the plurality of first portions 1061. In this way, water droplets that have accumulated on top surface portion 106 are discharged to the outside of lid body 100 via various paths.

[0033] Furthermore, by providing portions of different heights on top surface 106 as described above, when multiple containers are stacked, a space is formed between lid 100 of the container placed below and bottom surface 202 of the container body of the container placed above. By forming this space, the contents of the multiple stacked containers can be heated evenly.

[0034] A rib portion 112 can be provided on the first portion 1061 of the top surface portion 106. The rib portion 112 is concave toward the center 1060 of the top surface portion 106. The rib portion 112 is provided on the outer edge of the top surface portion 106. The rib portion 112 is disposed facing the flange portion 102. The rib portion 112 is a portion of the first portion 1061 at the boundary with the flange portion 102 that is concave toward the center 1060 of the top surface portion 106. By providing the rib portion 112 on the first portion 1061, which is the lowest in the top surface portion 106, it is possible to promote drainage of water droplets that have flowed into the first portion 1061 to the outside of the lid 100.

[0035] The third portion 1063 of the top surface portion 106 may have a flat surface portion 114. The flat surface portion 114 is a flat portion with no or little difference in height in the height 1063h of the third portion 1063. By having the flat surface portion 114 in the third portion 1063, which is the highest position on the top surface portion 106, when multiple containers are stacked, the bottom surface portion 202 of the container body 200 of the container stacked on top overlaps the flat surface portion 114, allowing the containers to be stacked stably.

[0036] The top surface portion 106 may be provided with a protrusion 116. The protrusion 116 may include a plurality of protrusions 116, and the plurality of protrusions 116 may be arranged along each of the plurality of side surfaces 104. The protrusion 116 is arranged between the third portion 1063 and the side surface portion 104. The protrusion 116 may be connected to the third portion 1063 and the side surface portion 104. In this case, the height 116h of the protrusion 116 is greater than the height 1063h of the third portion 1063. When multiple containers are stacked as described above, the plurality of protrusions 116 can fix the bottom surface portion 202 of the container body 200 of the container stacked on top to the inside of the top surface portion 106.

[0037] (Container body) The container body 200 may have a bottom surface portion 202, a side surface portion 204, a flange portion 206, and a skirt portion 208. The bottom surface portion 202, the side surface portion 204, the flange portion 206, and the skirt portion 208 are arranged in the above-mentioned order toward the outside of the container body 200. The bottom surface portion 202 is provided at a position corresponding to the top surface portion 106 when the container body 200 and the lid 100 are fitted together. The side surface portion 204 surrounds the bottom surface portion 202 and extends toward the flange portion 206. The side surface portion 204 may be provided with a rib portion that improves the strength of the container body 200 or a stack portion that prevents adhesion or tilting when multiple container bodies 200 are stacked together. The flange portion 206 is provided at a position that corresponds to the flange portion 206 of the lid 100 when the container body 200 and the lid 100 are fitted together. The flange portion 206 corresponds to the flange portion 206 of the lid 100, and therefore has a similar shape to the flange portion 206 of the lid 100. The skirt portion 208 is provided so as to surround the flange portion 206. The skirt portion 208 extends from the flange portion 206 toward the outside of the bottom portion 202. The skirt portion 208 is provided with a fitting portion 210. The fitting portion 210 may be provided at a position corresponding to the fitting portion 210 of the lid 100. Alternatively, when the container 10 is circular as shown in FIG. 1 , the fitting portion 210 may be provided so as to surround the flange portion 206.

[0038] In this embodiment, the lid 100 has a first section 1061 on the top surface 106 that is low and located between the side sections 104, a second section 1062 in the center 1060 that is higher than the first section, and a third section between the center 1060 and the side sections 104 that is higher than the second section. This creates a water channel from the third section to the second section and from the second section to the first section, allowing water droplets adhering to the top surface 106 to flow through the channel and be discharged to the outside of the lid 100. By discharging water droplets to the outside of the lid 100, accumulation of water droplets on the top surface can be suppressed. The reduced or no accumulation of water droplets on the top surface can reduce the work required to remove water droplets before serving reheated meals. Furthermore, because there is little or no water droplets entering the contents (e.g., food) when the lid is opened, delicious meals can be served without problems such as water dilution.

[0039] Second Embodiment In this embodiment, a container 20 different from that in the first embodiment will be described. Specifically, a container having a top surface portion 106 and a bottom surface portion 202 with different shapes will be described.

[0040] 4 is a schematic perspective view of a container according to one embodiment of the present invention. The top surface 106 and the bottom surface 202 are rectangular with rounded corners. On the top surface 106, the third portion 1063 is located at a diagonal position. The side surface 104 is also located at a diagonal position. The fitting portions 110 are located at the four corners of the rectangle on the skirt portion 108 and are spaced apart from each other.

[0041] This embodiment also achieves the same effects as the first embodiment. That is, it is possible to reduce the work of removing water droplets that have accumulated on the top surface of the lid before serving the reheated meal. Furthermore, since little or no water droplets get into the contents, such as food, when the lid is opened, it is possible to provide a lid or container that allows for the serving of delicious meals.

[0042] Within the scope of the concept of the present invention, a person skilled in the art may conceive of various modifications and alterations, and it is understood that these modifications and alterations also fall within the scope of the present invention. For example, to the above-described embodiment, a person skilled in the art may appropriately add or delete components, combine or change the design of the embodiments, or add or omit processing or change conditions, and these modifications and alterations are also included within the scope of the present invention as long as they maintain the gist of the present invention. [Explanation of symbols]

[0043] 10: container, 20: container, 100: lid, 102: flange, 104: side, 104-1: side, 104-2: side, 104-3: side, 106: top, 108: skirt, 110: fitting, 112: rib, 114: flat, 116: protrusion, 200: container body, 202: bottom, 204: side, 206: flange, 208: skirt, 210: fitting, 1060: center, 1061: first part, 1061-1: first part, 1061-2: first part, 1061-3: first part, 1062: second part, 1063: third part, 1063-1: third part, 1063-2: third part, 1063-3: third part

Claims

1. The top surface and a flange portion surrounding the top surface portion; a first side surface portion and a second side surface portion that are located between the top surface portion and the flange portion, extend along the flange portion, and are spaced apart from each other; the top surface portion has a first portion between the first side surface portion and the second side surface portion, a second portion located at the center of the top surface portion, and a third portion between the first side surface portion and the second portion, a height of the third portion is greater than a height of the first portion and a height of the second portion; A lid for a container, wherein the height of the second portion is greater than the height of the first portion.

2. The lid for a container according to claim 1 , wherein the first portion, the second portion, and the third portion are each successively arranged at an incline.

3. The lid for a container according to claim 1 , wherein the first portion has a rib portion that is recessed toward the center of the top surface portion.

4. The lid for a container according to claim 1 , wherein the third portion has a flat surface.

5. The lid for a container according to claim 1 , further comprising a protrusion located between the first side surface portion and the first portion and protruding in a height direction.

6. Further, the flange portion has a skirt portion surrounding the skirt portion. The lid for a container according to claim 1 , wherein the skirt portion has a fitting portion that is recessed toward the inside of the top surface portion.

7. A lid for a container according to claim 1; A container having a container body that fits with the lid.

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