Container lid

Abstract

The present invention provides a container lid made of a paper-like material that prevents the lid from easily opening due to external pressure or vibration, thus preventing the contents of the container from spilling out. [Means for solving the problem] A container lid comprising multiple partial lids, wherein the partial lids are made of a paper-like material, extend from the side of the container, and are foldable, and the partial lids are configured such that when the second partial lid is placed on top of the first partial lid, either the left or right side of the second partial lid is pushed inward into the container, the side of the second partial lid that is pushed in slides to the underside of the first partial lid, and the sliding causes notches provided in the first partial lid and the second partial lid to engage, thereby fitting the first partial lid and the second partial lid together.

Description

Technical Field

[0001] The present invention relates to a lid for a container made of a paper-like material used for selling finger foods such as French fries, tempura, and croquettes.

Background Art

[0002] Conventionally, in food and beverage stores such as convenience stores and fast food restaurants, most of the paper containers for finger foods such as French fries, tempura, and croquettes are paper assembled three-dimensional containers, and various forms are known. For example, the paper container for finger foods described in Patent Document 1 can sandwich and fix a single lid extending from the upper part of the back surface of the container at three points: the left and right bending pieces provided on the side surface of the container body and the gap provided on the wall surface of the front surface, and can maintain the lid in a closed state at the finger food outlet.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The above-mentioned paper container for finger foods can easily fix the lid without using tape or the like and without taking much time and effort. However, the lid is constructed to cover the container body in an arch shape from the side of the container, and a force is constantly acting on the lid to return it to its original shape from arch to flat. Therefore, when holding a finger food paper container, if the front and rear sides or the left and right sides of the container are pressed hard, the gripping fixation of the lid may come loose and the container may open. Also, when moving while holding a finger food paper container, the gripping fixation of the lid may come loose due to the shaking and vibration of the hand while walking, and the container may open, potentially causing the french fries or fried chicken inside to spill out. Furthermore, the finger food paper container described in Patent Document 1 has a configuration in which one large lid is connected to the rear side, and even if the finger food paper containers are displayed on a shelf in a store with the lids open, the ones in the back are hidden behind the ones in the front and cannot be seen, thus not stimulating the desire to buy.

[0005] Therefore, the present invention provides a container made of a paper-like material having two or more interlocking paper-like lid sections that prevent the lid from easily opening due to external pressure or vibration, and that also provides a container lid made of a paper-like material that does not obstruct the view when the container is displayed on a shelf in a store, allowing the container at the back of the display to be seen and stimulating the desire to purchase. [Means for solving the problem]

[0006] As the first invention, a container lid is provided, comprising a plurality of partial lids, wherein the partial lids are made of a paper-like material, extend from the side of the container, and are foldable, and the first partial lid and the second partial lid are configured such that when the second partial lid is placed on top of the first partial lid, either the left or right side of the second partial lid is pushed inward into the container, the side of the second partial lid that is pushed in slides under the first partial lid, and the sliding causes notches provided in the first partial lid and the second partial lid to engage, thereby fitting the first partial lid and the second partial lid together.

[0007] As a second invention, building upon the first invention, the fitting of the first and second partial lids is configured such that the fitting is not released spontaneously by the pressure applied in the closing direction to the fitting portion from the container side surface on which the first and second partial lids extend.

[0008] As a third invention, based on the first or second invention, the present invention provides a container lid configured such that, in the state in which the first and second partial lids are fitted together, an opening hole is provided at the end of the partial lid on the side surface of the container to which the first and second partial lids extend, allowing access to the inside of the container.

[0009] As a fourth invention, based on the first or second invention, the present invention provides a container lid in which the opposing end lines of one or more partial lids, either the first partial lid or the second partial lid, are curved and convex when viewed from the extending side surface of the container, and a notch for fitting is provided near the apex of the curve.

[0010] As a fifth invention, based on the first or second invention, the present invention provides a container lid in which the first and second partial lids are biased in a direction such that the side surfaces of the partial lids conform to the container side surfaces that extend to the container side surfaces so that they do not fall inward into the container when fitted together.

[0011] As the sixth invention, based on the first or second invention, a container lid is provided in which the first and second partial lids are fitted together and fall inward from the side of the container. [Effects of the Invention]

[0012] With the above configuration, the lid cannot be easily opened by external pressure or vibration, preventing the contents from spilling out. Furthermore, when the containers are displayed on shelves in stores, they do not obstruct the view, allowing customers to see the containers at the back of the display, thus stimulating purchasing intent. In addition, the height of the container when the lid is open can be reduced compared to a system consisting of a single lid and a lid locking piece, saving height on the container display shelf. [Brief explanation of the drawing]

[0013] [Figure 1] External view showing an example of a container and lid made of paper-like material according to Embodiment 1. [Figure 2] Conceptual diagram showing an example of a mechanism for fitting a partial lid in a container equipped with a lid according to Embodiment 1. [Figure 3] An unfolded diagram showing an example of a container and lid made of paper-like material according to Embodiment 1. [Figure 4] A conceptual diagram showing an example of the restoring force associated with the structure of a container, for a container equipped with a lid according to Embodiment 2. [Figure 5] External view showing an example of a container equipped with a lid according to Embodiment 3, with a fitted partial lid superimposed. [Figure 6] A plan view showing an example of a container equipped with a lid according to Embodiment 4, in which a fitted partial lid is superimposed. [Figure 7] Front view showing an example of a folded state of a container equipped with a lid according to Embodiment 4. [Figure 8] An external view showing an example of a mechanism in which a force is applied in the direction that opens the fitting portion of the lid of a container equipped with a lid according to Embodiment 5. [Figure 9] External view showing an example of a mechanism in which a force is applied in the direction that closes the fitting portion of the lid of a container equipped with a lid according to Embodiment 6. [Modes for carrying out the invention]

[0014] <Embodiment 1> Embodiment 1 mainly relates to claim 1, etc.

[0015] <Overview of Embodiment 1> The lid of the container according to Embodiment 1 is configured such that, with the first partial lid and the second partial lid placed one above the other, when either the left or right side of the second partial lid is pushed inward into the container, the side of the second partial lid being pushed slides under the first partial lid, and the cuts provided on the first partial lid and the second partial lid engage with each other due to the sliding, so that the first partial lid and the second partial lid are fitted together.

[0016] <Embodiment 1 Configuration> (Embodiment 1 General Configuration) FIG. 1 is an external view showing an example of a container including the container according to Embodiment 1 and the lid of the container. The container 0100 made of a paper-like material has a first partial lid 0101, a second partial lid 0102, a rear side surface 0103, a front side surface 0104, a storage portion 0105, a first partial lid cut 0106, a second partial lid cut 0107, a first partial lid fold line 0108, a second partial lid fold line 0109, and a pick insertion 0110. The lid of the container in Embodiment 1 is the first partial lid and the second partial lid, and is configured independently and separated from the storage portion of the container composed of the rear side surface, the front side surface, and the bottom surface. That is, the lid of the container is the shaded portion in FIG. 1. As a container other than the container shown in FIG. 1, for example, a container in which at least the first partial lid and the second partial lid are attached to the upper part of a rectangular container made of a paper-like material may be used, or a container in which at least the first partial lid and the second partial lid are attached to the upper part of a substantially cylindrical container made of a paper-like material may be used.

[0017] (Embodiment 1 Configuration Paper-like Material) The paper-like material for the container and its lid refers to a material made of paper or a thin, paper-like material that has resilience to bending forces (e.g., thin plastic material, thin nonwoven fabric material, etc.). In this invention, the paper-like material is not high-quality paper used for letters or stationery notebooks, nor printing paper used for printing; rather, thick cardboard is preferable to maintain a certain strength as a container. As for the material, coated cardboard, which is most widely used for product packaging (paper boxes) of sweets, tissues, and daily necessities, is preferable. Furthermore, it is preferable that the outer surface of the container be coated to be glossy, aesthetically pleasing, and printable. In addition, it is preferable that the inner surface of the container be coated to prevent oil from seeping in.

[0018] (Embodiment 1: Partial Lid) The partial lid consists of a paper-like first partial lid 0101 located on the upper part of the rear side and a paper-like second partial lid 0102 located on the upper part of the front side. The partial lid extends from the side of the container and is foldable from the upper edge of the side of the container, and is sized such that folding only one of the first or second partial lids inward does not close the opening of the container's storage compartment. The container's storage compartment opening can be closed by pushing either the left or right side of the second partial lid inward into the container with the second partial lid placed on top of the first partial lid. In this embodiment, the first partial lid is configured to be larger than the second partial lid, but the second partial lid may also be configured to be larger than the first partial lid. For example, the overlapping paper-like lids are shaped like a fan, a semi-ellipse, a semicircle, or a triangle, or a triangle with a curved hypotenuse, with the width narrowing towards the front.

[0019] Figure 2 is a conceptual diagram showing an example of how fitting partial lids are superimposed in a container equipped with a lid according to Embodiment 1. The upper and lower parts of Figure 2(a) show the state in which the first partial lid 0201 (solid line) is superimposed on the second partial lid 0202 (dotted line). The upper part of Figure 2(a) is a conceptual diagram showing the vertical relationship of the two partial lids, and the lower part of Figure 2(a) is a plan view showing the vertical relationship of the two partial lids in the upper part of Figure 2(a). The upper and lower parts of Figure 2(b) are conceptual diagrams showing the state in Figure 2(a) where the overlapping left end (or right end) of the two partial lids is pressed with a finger, so that a part of the left side of the first partial lid 0203 is pushed into the lower part of the second partial lid 0204, and a part of the left side of the second partial lid is positioned on top of the first partial lid. Figure 2(c) is a conceptual diagram showing the state in which the first part lid 0205 is pushed further with a finger from the state in Figure 2(b), so that the entire left side of the first part lid 0205 is pushed into the lower part of the second part lid 0206, and the entire left side of the second part lid is positioned on top of the first part lid. To explain Figures 2(b) and 2(c) in more detail, when both partial lids are folded inward into the container and the first partial lid is positioned above the second partial lid, both partial lids are pushed downward. As a result, the overlapping portions become closer to the tips, and when the notches at the tips align, half of the area from the notch at the tip of the upper partial lid is positioned below the other partial lid. Thus, one portion of the notches on the two partial lids is positioned above the other partial lid, and the other portion is positioned below the other partial lid. This causes the two partial lids to be positioned above and below the other partial lid, and the lids fit together, preventing them from opening naturally due to the upward repulsive force of the partial lids on the container. In other words, the notches near the tips of the partial lids intersect with each other, and the shape of the partial lids is configured such that only half of the notch on the upper partial lid is below the corresponding half of the lower partial lid. This series of actions occurs due to uneven sinking, where the side of the upper lid that is pressed down on is either to the left or right of the notch, causing the pressed side of the lid to sink more inward into the container than the unpressed side. This uneven sinking causes the side of the upper lid that is pressed down by the finger to sink below the other lid, transitioning to a state where no pressure is applied by the finger, and thus the aforementioned fitting occurs through interlocking at the notch. Furthermore, there may be two or more partial lids, but they do not necessarily have to be exactly two. The lid may be configured to be completed by three, four, or five or more partial lids.

[0020] (Embodiment 1 Configuration: Cutout) In Figure 1, a notch 0106 is formed in the partial lid 0101 located at the top of the rear side surface 0103, and a notch 0107 is formed in the partial lid 0102 located at the top of the front side surface 0104. Both notches are formed to fit together. The shape of the notches is not particularly limited, but can be V-shaped, U-shaped, or have protrusions and recesses. With the second partial lid placed on top of the first partial lid, the lid of the container is formed by pushing either the left or right side of the second partial lid inward. The side of the second partial lid that is pushed in slides under the first partial lid, and they fit together so that they are convex downwards, preventing the partial lid from opening even under external force, impact, or vibration, and maintaining a closed state. For example, when the front and rear sides of a container made of paper-like material are grasped with fingers, the notches of the partial lids push against each other and become convex downwards, so a downward force is applied to the partial lids, and because the notches push against each other, it becomes impossible to push them in any further. Furthermore, when the left and right ends of the container made of paper-like material are grasped with fingers, the notches in the partial lid separate, and a downward force is applied to the convex part of the partial lid. As a result, at least the left end of the partial lid maintains its vertical position, and the fitted state is preserved.

[0021] (Embodiment 1: Other Configurations - Side Views) The sides of the paper-like material consist of a rear side 0103 and a front side 0104. The rear and front sides form the sides of the container made of the paper-like material. The rear and front sides are joined together to maintain the strength of the container made of the paper-like material. The joining may be done by glue or double-sided tape.

[0022] (Embodiment 1 Other Configurations Housing Section) The storage section 0105 is an area formed by the front side, rear side, and bottom. The storage section is formed by the two sides and the bottom when the front and rear sides of a container made of paper-like material are overlapped and folded, and the left and right ends of the sides are narrowed. The storage section is an area for storing contents such as french fries, fried chicken, and croquettes, but the contents are not limited to these.

[0023] (Embodiment 1 Other configurations Fold between the upper side and the partial lid) There are two folds, a first fold 0108 and a second fold 0109, between the upper side and the partial lid. These folds are designed to make it easier to fold the paper-like partial lid inward into the container. When the left and right edges of the folded, flat, paper-like container are pressed in, the container takes on a three-dimensional shape, and the folds become easier to fold inward. This is because it is difficult to fold on the convex side of the three-dimensional shape, and easy to fold on the concave side.

[0024] (Embodiment 1: Other configurations, pick holder) The pick holder 0110 is for inserting picks used to pierce and eat the food stored in the compartment. Since the food may be heated and hot, it is acceptable to eat it using a pick. The items to be inserted into the pick holder are not limited to picks; toothpicks or small forks may also be used.

[0025] <Embodiment 1: Deconstructed View> (Embodiment 1: Deconstructed View - Overview) Figure 3 is an unfolded view showing an example of a container and partial lid made of a paper-like material according to Embodiment 1. The container 0300 made of a paper-like material in this figure has a first partial lid 0301, a second partial lid 0302, a rear side surface 0303, a front side surface 0304, a bottom surface 0305, a notch 0306 in the first partial lid, a notch 0307 in the second partial lid, a fold line 0308 in the first partial lid, a fold line 0309 in the second partial lid, and a pick holder 0310. The rear side 0303 is integrally and continuously composed of first sleeve portions 0304L1 and 0304R1 located at the left and right ends of the rear side and connected to the back portion, and second sleeve portions 0304L2 and 0304R2 located at the left and right ends of the first sleeve portions and connected to the first sleeve portions. The first and second sleeve portions are assembled overlapping with the front side 0304. The second sleeve portions 0304L2 and 0304R2 of the rear side are joined to the front side. The joining can be done by gluing or by double-sided tape. The unfolded diagram of the container is described below.

[0026] (Embodiment 1: Deconstructed view, bottom) The bottom surface 0305 is the bottom surface of the container, which is made of a paper-like material. The multiple cut lines provided on the bottom surface facilitate the transformation of the container from a planar shape to a three-dimensional shape. Due to the multiple cuts formed on the bottom surface of the container, the indentations at the left and right edges reverse the unevenness, forming a three-dimensional bottom surface. In addition, there are small gaps at the left and right edges of the bottom surface that are just large enough to prevent the contents stored in the container from spilling out. This is to prevent freshly fried products from becoming damp due to steam if they are sealed in the container.

[0027] (Embodiment 1: Deconstructed view, assembly method) Containers made from paper-like materials are created from a template. By cutting out the template and folding it, a flat, folded paper-like container is created. This allows for significant space and storage savings during transportation and in stores. By holding the left and right ends of a container made of paper-like material folded into a flat shape and gently pressing them with your fingers to narrow the width of the container, a three-dimensional container made of paper-like material is formed. Due to the multiple cuts formed on the bottom surface of the container, the indentations are reversed when the left and right ends are pressed, forming a bottom surface that maintains the three-dimensional shape.

[0028] <Effect of Embodiment 1> This embodiment prevents the lid from easily opening due to external pressure or vibration, thus preventing the contents from spilling out. Furthermore, when the containers are displayed on shelves in stores, they do not obstruct the view, allowing customers to see the containers at the back of the display, stimulating their desire to purchase. In addition, the height of the container when the lid is open can be reduced compared to a design consisting of a single lid and a lid locking piece, saving height on the container display shelf.

[0029] <Embodiment 2> Embodiment 2 mainly relates to claim 2, etc.

[0030] <Overview of Embodiment 2> The container lid according to Embodiment 2 is based on Embodiment 1, but the fitting of the first partial lid and the second partial lid is configured such that the fitting portion is not released spontaneously by the pressure applied in the closing direction to the fitting portion received from the container side surface on which the first partial lid and the second partial lid extend.

[0031] <Configuration of Embodiment 2> (Embodiment 2: Overall Configuration) Figure 4 is a conceptual diagram showing an example of the restoring force associated with the structure of a container equipped with a lid according to Embodiment 2. Figure 4(a) is a conceptual diagram of the container in a folded state. The black dots on the left and right highlight the left and right edges of the container. Figure 4(b) is a schematic conceptual diagram showing the shape of the container formed by pressing the left and right edges from the left and right, as indicated by the white arrows in Figure 4(a). In other words, by pressing the left and right ends of the straight, paper-like container, the sides of the container form an arched shape, giving it the function of a container. As a result, a restoring force (a force that returns the arched shape to a straight line) naturally acts on the inside of the container, as shown by the black arrows. Due to this restoring force, the first and second partial lids are not released naturally by the pressure applied in the closing direction to the fitting portion that both partial lids receive from the sides of the container to which they extend. Note that the container lid of this embodiment is not limited to the container shown in this example, but can be used as a lid for any container that applies a similar force to the lid from the sides of the container to which the lid extends.

[0032] <Effects of Embodiment 2> This embodiment prevents the first and second partial lids from being spontaneously released by the pressure applied in the closing direction to the fitting portion from the container side surface on which they extend.

[0033] <Embodiment 3> Embodiment 3 mainly relates to claim 3, etc.

[0034] <Overview of Embodiment 3> The container lid according to Embodiment 3 is based on Embodiment 1 or Embodiment 2, and is configured such that, in the state in which the first and second partial lids are fitted together, an opening hole is provided at the end of the partial lid on the side surface of the container to which the first and second partial lids extend, allowing access to the inside of the container.

[0035] <Embodiment 3 Configuration> (Embodiment 3: Overall Configuration) Figure 5 is an external view showing an example of a container equipped with a lid according to Embodiment 3, in which a fitted partial lid is superimposed. The container 0500, made of a paper-like material, has a first partial lid 0501, a second partial lid 0502, a rear side surface 0503, a front side surface 0504, a first opening hole 0505, and a second opening hole 0506. In the following, configurations already described in Embodiment 1 will be omitted, and the configuration requirements specific to this embodiment will be described.

[0036] (Embodiment 3 Configuration: Opening hole) As shown in Figure 5, in the state in which the first and second partial lids of the container made of paper material in Embodiment 3 are fitted together and closed, opening holes are still formed at the upper left and right ends of the container even when both partial lids are fitted together and closed. The fitted partial lids are molded so that the area of ​​the opening of the container made of paper material is larger than the area of ​​the overlapping partial lids. This is to prevent the product inside the container from becoming damp due to steam if the container is sealed with the partial lids when the product inside is heated and at a high temperature. The size of the opening holes is such that the product does not fall out of the container, or that a person's finger cannot enter from the top of the container.

[0037] <Embodiment 3 Effects> This embodiment allows for the release of steam from inside the container, making it less likely for the product inside to become damp.

[0038] <Embodiment 4> Embodiment 4 mainly relates to claim 4, etc.

[0039] <Embodiment 4 Overview> The container lid according to Embodiment 4 is based on Embodiments 1 to 3, and the opposing end lines of one or more of the first and second partial lids are curved and convex when viewed from the extending side surface of the container, and a notch for fitting is provided near the apex of the curve.

[0040] <Embodiment 4 Configuration> (Embodiment 4: Overall Configuration) Figure 6 is a plan view showing an example of a container equipped with a container lid according to Embodiment 4, in which the fitted partial lids are superimposed. The container 0600, made of a paper-like material, has a first partial lid 0601, a second partial lid 0602, a first opening hole 0603, and a second opening hole 0604. Figure 7 is a plan view showing an example of a container equipped with a container lid according to Embodiment 4 in a folded state. The container 0700, made of a paper-like material, has a first partial lid 0701, a second partial lid 0702, a rear side surface 0703, a front side surface 0704, a dotted line 0705 for folding the second partial lid, a first partial lid fitting portion 0706, a first partial lid fitting portion 0707, and a pick holder 0708. In the following, configurations already described for Embodiments 1 to 3 will be omitted, and the notches for fitting, which are curved convex shapes of the partial lids and are provided near the apex of the curve, which are configuration requirements unique to this embodiment, will be described.

[0041] (Embodiment 4: Curved convex shape of the partial lid) As shown in Figure 6, the opposing end lines of one or more of the first and second partial lids are curved and convex when viewed from the extending side surface of the container. In this embodiment, the upper part of the first partial lid 0701 is curved and convex, and a notch 0706 is provided near its apex. On the other hand, the upper part of the second partial lid 0702 is straight, and a notch 0707 is provided near its apex. Because the upper part of the first partial lid is curved and convex, when the first partial lid is pressed down from above while it is overlapping the second partial lid, the overlap gradually reverses from the left (or right) end, and the notches of both partial lids fit together.

[0042] (Embodiment 4 Configuration: Cutout) The following describes the positions of the notches provided in the first and second lid sections. The notches in both lid sections are positioned to fit together near the peak of the roughly curved section described above. As shown in Figure 7, the upper part of the first partial lid in Embodiment 4 is composed of a convex curve, except for the notched portion. On the other hand, the upper part of the second partial lid in Embodiment 4 is composed of a straight line, except for the notched portion. This is because, when folding both paper partial lids inward into the container and fitting the mating portion, if both partial lids are curved, it is difficult to fit them together, and once fitted, it is difficult to release the paper partial lids. Also, if both paper partial lids are straight, the shared portion of the paper partial lid is difficult to fit together, and once fitted, it is easy to release.

[0043] <Embodiment 4 Effects> This embodiment makes it easier to fit the first and second lid parts together, while making it more difficult to release them.

[0044] <Embodiment 5> Embodiment 5 mainly relates to claim 5, etc.

[0045] <Embodiment 5 Overview> The container lid according to Embodiment 5 is based on Embodiments 1 to 4, and the first and second partial lids are biased in a direction in which the sides of the partial lids conform to the container sides that extend to prevent them from falling inward into the container when fitted together.

[0046] <Embodiment 5 Configuration> (Embodiment 5: Overall Configuration) Figure 8 is an external view showing an example of a mechanism in which a force is applied in the direction of opening the fitted partial lid of a container equipped with a lid according to Embodiment 5. The container 0800, made of a paper-like material, has a first partial lid 0801, a second partial lid 0802, a rear side surface 0803, a front side surface 0804, an opening hole 0805, and an opening hole 0806. In the following, configurations that have already been described in Embodiments 1 to 4 will be omitted, and the structure and mechanism which are configuration requirements specific to this embodiment will be described.

[0047] (Embodiment 5: Upper part of the lid of the paper-like portion of the lid) As shown in Figure 8, the first and second partial lids of the container equipped with the lid of Embodiment 5 are fitted together and closed. Even when force is applied to push the container lid down from above, the first and second partial lids do not easily fall inward into the container (storage area), and the force is biased in the direction that the container side surface extending from both partial lids (i.e., the partial lids are continuously and consistently configured with the container side surface) follows. Furthermore, because the two partial lids are fitted together, they support each other, and the force in the direction that the container side surface follows causes the two partial lids to adhere tightly to each other. This is because when the partial lids are pushed inward into the container, the curve forming the boundary between the container side surface and the partial lid is reduced by the force applied from the container side surface, which resists the reduction in curvature of the boundary surface forming the container side surface. The boundary of the container side surface is constructed with relatively strong mechanical strength, whereas the boundary of the partial lid deforms so that the entire partial lid becomes a concave curved surface, reducing its curvature. Therefore, when a partial lid is pushed inward into the container, a force acts in a direction that reduces the curvature of the partial lid. This force attempts to reduce curvature by reducing the curvature of the boundary between the container side and the partial lid. As a result, because the mechanical strength of the container side is strong, there is little surface deformation of the container side, and the force that returns the partial lid to the upper part of the container is generated by a force applied from the container side. Note that the container lid in this embodiment is not limited to the one shown in Figure 8, and can be implemented for any container on which a similar force acts on the container side of the lid that extends in a similar manner.

[0048] <Embodiment 5: Effects> This embodiment makes it possible to create a configuration in which the container lid is less likely to fall inward when a force is applied to press down on the container lid from above.

[0049] <Embodiment 6> Embodiment 6 mainly relates to claim 6 and the like.

[0050] <Embodiment 6 Overview> The container lid according to Embodiment 6 is based on Embodiments 1 to 5, and is a container lid in which the first partial lid and the second partial lid are fitted together and fall inward from the side of the container.

[0051] <Embodiment 6 Configuration> (Embodiment 6: Overall Configuration) Figure 9 is an external view showing an example of a mechanism in which a force is applied in the direction that closes the fitted partial lid of a container equipped with a lid according to Embodiment 6. The container 0900, made of a paper-like material, has a first partial lid 0901, a second partial lid 0902, a rear side surface 0903, a front side surface 0904, and release holes 0905 and 0906. In the following, configurations that have already been described in Embodiments 1 to 5 will be omitted, and the structure and mechanism which are configuration requirements specific to this embodiment will be described.

[0052] (Embodiment 6: Upper part of the lid of the paper-like portion of the lid) As shown in Figure 9, the first and second partial lids of the container equipped with the lid of Embodiment 6 are fitted together and closed. Both partial lids are integrally constructed with the extending container side surface convex downwards (the fold line between the container side surface and both partial lids is convex downwards), and a downward force is applied. Furthermore, because the two partial lids are fitted together, they support each other, and the downward force is configured to increase the closing force (fitting strength) of both partial lids.

[0053] <Embodiment 6 Effects> In this embodiment, the first and second partial lids can be configured to be fitted together and drop into the container from the side of the container.

[0054] <Other containers in general> (Other containers in general) The following describes a container equipped with a lid. The container, made of a paper-like material, is configured such that two or more paper-like partial lids, each having a fitting portion that fits together with the upper part of both sides of the container, are pushed inward towards the inside of the container with at least a portion of them overlapping, causing the two or more paper-like partial lids to fit together through the fitting portions, and the two or more paper-like partial lids to overlap to complete the lid of the container.

[0055] (Other container configuration 1) A container made of a paper-like material in which a storage compartment is formed by the sides and the bottom surface, by narrowing the left and right ends of the two sides from a state in which the front and rear sides are overlapped and folded, and the container has two or more paper-like partial lids on the upper part of the two sides which fit together, and the overlap of the overlapping upper parts of the paper-like partial lids gradually widens as the left and right ends of the two sides are narrowed, and when the paper-like partial lids are pushed inward into the container with at least a part of them overlapping, the two or more paper-like partial lids fit together with the fitting parts, and the two or more paper-like partial lids overlap to complete the lid of the container.

[0056] (Other container configuration 2) The present invention provides a container made of a paper-like material as described in Configuration 1, in which a fold is provided between the paper-like lid and the upper parts of both sides.

[0057] (Other container configuration 3) The aforementioned folds are provided in the form of concave curves on the upper parts of both sides, providing a container made of the paper-like material as described in configuration 2.

[0058] (Other container configuration 4) The present invention provides a container made of a paper-like material according to any one of configurations 1 to 3, wherein at least one of the upper parts of the paper-like portion lid is formed by a convex curve, excluding the fitting portion.

[0059] (Other container configuration 5) The present invention provides a container made of a paper-like material as described in any one of configurations 1 to 3, in which the lid of the completed container, formed by overlapping paper-like lids, is overlapped in such a way that a portion of it does not cover the container's contents. [Explanation of Symbols]

[0060] 0100 Container made of paper-like material 0101 First part lid 0102 Second partial lid 0103 Rear side 0104 Front side 0105 Detention Unit 0106 First section lid cutout 0107 Second part lid cutout 0108 First part lid fold line 0109 Second part lid fold line

Claims

1. A lid for a container consisting of multiple parts, The partial lid is made of a paper-like material, extends from the side of the container, and is foldable. A container lid configured such that, among several partial lids, the second partial lid is placed on top of the first partial lid, and with the partial lids overlapping, the second partial lid is pushed inward from either the left or right side, causing the notches provided in the first and second partial lids to interlock due to the sliding of the partial lids, thereby fitting the first and second partial lids together and creating a tight seal by the force that attempts to eliminate the difference in radius of curvature at the boundary between the partial lid and the side of the container, and the container lid having the following configurations (1) to (4) such that the second partial lid, which is pushed in by touching the two overlapping lids with a finger, can slide to the underside of the first partial lid. (1) The configuration is such that when the first and second lids are pressed together, the leading edge of the second lid is separated from the side of the container on which the first lid extends. (2) The configuration is such that the leading edge of the first part lid, which is pressed in when the second part lid and the first part lid are stacked on top of each other, is spaced apart from the side of the container on which the second part lid extends. (3) The width of the second part lid and the first part lid are such that they can slide downward when pressed in. (4) The overlap width of the second lid and the first lid becomes shallower towards both sides of the container, excluding the notched portion.

2. The lid of a container according to claim 1, wherein the fitting of the first partial lid and the second partial lid is configured such that it does not spontaneously release due to the pressure applied in the closing direction to the fitting portion received from the container side surface on which the first partial lid and the second partial lid extend.

3. The lid of a container according to claim 1 or claim 2, wherein, in the state in which the first partial lid and the second partial lid are fitted together, the end portion of the partial lid on the side surface of the container to which the first partial lid and the second partial lid extend is provided with an opening hole that communicates with the inside of the container.

4. The lid of a container according to claim 1 or claim 2, wherein the opposing end lines of either the first partial lid or the second partial lid are curved and convex when viewed from the extending side surface of the container, and a notch for fitting is provided near the approximate apex of the curve.

5. The lid of a container according to claim 1 or claim 2, wherein the first and second partial lids are biased in a direction such that the sides of the partial lids conform to the container sides that extend to the container sides so that they do not fall inward into the container when fitted together.

6. The lid of a container according to claim 1 or claim 2, wherein the first part of the lid and the second part of the lid are fitted together and fall inward from the side of the container.

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