Lid body, and container with lid body

Abstract

To provide a lid body that suppresses oxidation of liquids, facilitates the release of bubbles generated from liquids, and allows for easy stirring of liquids, as well as a container equipped with the lid body.SOLUTION: A lid body 10 floats on a liquid surface in a container, the lid body comprising at least two separate piece sheets spaced apart from each other. Preferably, piece sheets 10a, 10b are connected by connecting members, and the piece sheets each have an opening comprising at least one type of a slit hole, a round hole, a polygonal hole, an elliptical hole, and an irregularly shaped hole.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lid that floats on a liquid surface and a container equipped with the lid. [Background technology]

[0002] Conventionally, when liquids such as alcoholic beverages, soy sauce, and coffee are stored in containers, they are oxidized by the air that comes into contact with the liquid surface, causing deterioration in quality. To prevent the oxidation of liquids, for example, the containers can be sealed.

[0003] However, when pouring liquid from a container, the lid of the container must be opened, and air equal to the volume of the poured liquid enters the container. As a result, the liquid inside the container is unavoidably oxidized. Although there are oxidation prevention devices that use nitrogen gas or argon gas substitution, they are expensive and impractical because they require substitution with these gases every time the lid is opened and closed. In particular, when used for food, they are difficult to use at home and have low versatility.

[0004] Therefore, a technique for suppressing oxidation of the liquid by floating a lid on the liquid surface has been conventionally adopted. In order to suppress oxidation of the liquid, it is necessary to narrow the gap between the edge of the lid and the inner wall of the container as much as possible from the viewpoint of suppressing contact between the liquid and the atmosphere. However, if too much attention is paid to suppressing oxidation of the liquid, other problems arise, and therefore various studies have been conducted in the past.

[0005] For example, as mentioned above, if the inner wall of the container and the side of the lid are too close to each other, the lid will get caught on the inner wall of the container. This can cause the lid to not follow the liquid surface even when the container is tilted, raising concerns that the liquid may not be able to be drawn out of the container. Patent Document 1 therefore discloses a technology for providing a gap between the side of the lid and the inner wall of the container so that the lid returns to a floating state on the liquid surface even when the container is returned to its original position after being tilted.

[0006] Furthermore, if the gap between the edge of the lid and the inner wall of the container is made as narrow as possible to prevent oxidation of the liquid, adding a liquid other than the liquid inside the container requires the liquid to be introduced into the liquid inside through the gap in the lid, making it difficult to dispense the other liquid into the liquid inside. Therefore, Patent Document 2 discloses a lid with an opening of a predetermined size to dispense a reagent from a liquid container and prevent oxidation of the reagent.

[0007] Furthermore, Patent Document 3 discloses a lid having a spiral slit formed from the center to the periphery of a substantially circular sheet. This lid is inserted into a container in an elastically stretched state, so that the lid can be inserted into the container even if the container has a small opening. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Utility Model Registration No. 3174885 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-58322 [Patent Document 3] Japanese Patent Application Laid-Open No. 2008-184204 Summary of the Invention [Problem to be solved by the invention]

[0009] As mentioned above, the lids described in Patent Documents 1 to 3 not only suppress the oxidation of the liquid, but also address the issues that arise when placing the lid in a container, and when tilting the container containing the liquid or introducing another liquid after placing the lid in the container. However, there may be situations where it is better to float the drop lid on the surface of the liquid, for example, during fermentation of the liquid.

[0010] Furthermore, when fermenting a liquid, if the bubbles that are generated during fermentation remain in the liquid, their impact on the fermentation is reduced. However, since it is difficult to pinpoint the position where the bubbles will rise, it is better to make it easy for the bubbles to be released regardless of the position on the liquid surface from which they rise.

[0011] Furthermore, it is sometimes advisable to stir the liquid while it is fermenting. In this case, if a lid with an area as close as possible to the liquid surface is floating on the liquid surface in order to prevent oxidation of the liquid, the gap will be too narrow to insert a stirring rod into the liquid. For example, when stirring liquid in a large container such as those used in sake breweries, it is necessary to insert a stirring rod anywhere in the container to stir evenly.

[0012] However, simply providing a gap between the side of the lid and the inner wall of the container, as in Patent Document 1, only allows stirring near the side of the container. Furthermore, even with only one hole, as in Patent Document 2, it is difficult to stir the entire liquid evenly. Patent Document 3 only provides a slit, and does not take into account gaps for inserting a stirring rod or the like. On the other hand, providing numerous holes to allow bubbles to form from the liquid in the container or to stir the liquid makes it difficult to achieve the effect of inhibiting oxidation of the liquid. Furthermore, even if you want to stir a specific location, if there is no hole in that location, you cannot stir that specific location.

[0013] As described above, while conventional lids have been designed to suppress the oxidation of liquids, they do not fully consider situations in which bubbles are generated due to the fermentation of the liquid. Furthermore, it is not practical to remove the lid only when bubbles are generated or when the liquid is stirred. In recent years, there has been a demand for storing liquids while suppressing oxidation, for example, when shipments of wine and other liquids decrease. Furthermore, there is a demand for lids that can suppress oxidation without affecting the fermentation or stirring of the liquid.

[0014] The object of the present invention is to provide a lid that suppresses oxidation of a liquid, facilitates the release of bubbles generated from the liquid, and facilitates stirring of the liquid, and a container equipped with the lid. [Means for solving the problem]

[0015] From the viewpoint of suppressing oxidation of the liquid, the inventors conducted extensive research, assuming that the lid body would be sheet-shaped as in the past, to enable the free release of bubbles whose location cannot be identified, and the ability to stir the liquid in the container at any stirring position.

[0016] Conventional lids are all integrally constructed, and therefore do not take into consideration the release of foam from the liquid or the agitation of the liquid. Furthermore, when the lid is integrally constructed, the position where foam can be released or the liquid can be agitated is limited. Furthermore, as disclosed in Patent Document 3, when the lid is placed in a container with a narrow inlet, the lid needs to return to its original shape after entering the container, and therefore the lid needs to be formed integrally.

[0017] The inventors came up with the idea of ​​dividing the flat lid, which is the exact opposite of conventional ideas, in order to suppress oxidation of the liquid, make it easier to release bubbles and other particles generated from the liquid, and enable the liquid to be stirred at any position.

[0018] If the lid body is made up of multiple divided individual sheets, the area of ​​each individual sheet is smaller. For example, when bubbles are released from a liquid, the buoyancy of the bubbles causes the liquid surface to rise, making it easier for the individual sheets to move away from the bubbles, so the release of the bubbles is not hindered. Furthermore, when stirring the liquid, a stirring rod can be inserted through the gaps between the multiple individual sheets. Since the divided individual sheets can move freely without interference until they come into contact with each other, the lid body can be floated on the liquid and the stirring location is not limited, allowing stirring to be performed at any position. Furthermore, if a lid body made up of multiple divided individual sheets floats on the liquid surface, oxidation of the liquid can be suppressed comparable to that of conventional lid bodies. The present invention thus completed is as follows:

[0019] (1) A lid that floats on the liquid surface in a container, The lid body is made up of at least two or more individual sheets spaced apart from each other. A lid body characterized by:

[0020] (2) The lid body according to (1) above, wherein the individual sheets are connected by a connecting member.

[0021] (3) The lid according to (1) or (2) above, wherein the individual sheet has openings that are at least one of slit holes, round holes, polygonal holes, elliptical holes, and irregular holes.

[0022] (4) The lid according to any one of (1) to (3) above, wherein the individual sheets are approximately the same size. (5) The lid according to any one of (1) to (4) above, wherein the individual sheet is formed by laminating a plurality of sheets.

[0023] (6) A container having a lid according to any one of (1) to (5) above. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a perspective view showing an example of a lid according to the present embodiment. [Figure 2] Figure 2 is an oblique view showing the outer sheet and the inner sheet separately that make up the lid shown in Figure 1, where Figure 2(a) shows an assembly of the outer sheet pieces and Figure 2(b) shows an assembly of the inner sheet pieces. [Figure 3] FIG. 3 is a perspective view showing an example of the lid according to the present embodiment. [Figure 4] FIG. 4 is a perspective view showing an example of a lid according to the present embodiment, in which the individual sheets are connected by connecting members. [Figure 5] FIG. 5 is a perspective view showing a state in which the lid according to this embodiment floats on the liquid surface in the container. DETAILED DESCRIPTION OF THE INVENTION

[0025] The present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments described below in detail, and each embodiment may be combined as appropriate.

[0026] 1. Lid (1) Lid Fig. 1 is a perspective view showing an example of a lid body 10 according to this embodiment. As shown in Fig. 1, the lid body 10 includes individual sheets 10a and 10b. When viewed from above, the lid body 10 may have substantially the same shape as the cross-sectional shape of the container.

[0027] For example, if the cross-sectional shape of the container is approximately circular, the shape when viewed from the top of the lid 10 may be approximately circular, as shown in FIG. 1. In cases where the shape of the lid 10 viewed from the top is approximately the same as the cross-sectional shape of the container, as in the case of the lid 10, when the lid 10 floats on the liquid surface in the container, the gap between the inner wall of the container and the edge of the lid 10 can be minimized, thereby more fully suppressing oxidation of the liquid. If the cross-section of the container is approximately rectangular, the shape when viewed from the top of the lid 10 may also be approximately rectangular. In this embodiment, the shape of the lid when viewed from the top does not necessarily have to match the cross-sectional shape of the container. For example, as shown in FIG. 2(b), the lid may be composed of only individual sheets 10b.

[0028] The individual sheets 10a and 10b that make up the lid 10 are spaced apart from each other and float on the liquid surface. For example, when bubbles rise from the liquid in the container to the surface, the individual sheets 10a and 10b move away from the bubbles in response to the buoyancy of the bubbles. Therefore, even if the lid 10 floats on the liquid surface, it does not hinder the release of the bubbles.

[0029] In this way, the lid body 10 is configured such that the individual sheets 10a and 10b are spaced apart from each other, and when the liquid surface rises due to bubbles or the like, the adjacent individual sheets 10a and 10b can move until they abut each other without interfering with each other. In reality, it is not possible to determine the position where bubbles or the like rise, but the individual sheets 10a and 10b move in a direction away from the bubbles depending on the buoyancy of the bubbles. Therefore, the bubbles can be released from the liquid surface regardless of the position where the bubbles rise.

[0030] Furthermore, for example, when stirring liquid in a container with a stirring rod, the individual sheets 10a and 10b can be moved to the desired position or its vicinity, and the stirring rod can be inserted into the liquid to stir. Some conventional lids have holes, but these holes are through-holes in the lid, and the position of the holes is fixed. Therefore, even if the hole is large enough to accommodate a stirring rod, the stirring rod must be inserted only through the hole provided in the lid. Therefore, when stirring liquid in a large container used in a sake brewery, etc., it was not possible to stir the liquid uniformly with the conventional lid floating on the liquid surface.

[0031] On the other hand, in the lid body 10 according to this embodiment, as described above, the individual sheets are spaced apart from each other. This allows a stirring rod to be inserted where the stirring is desired and the liquid in the container to be stirred. Furthermore, the individual sheets 10a and 10b can move freely without interfering with each other until they come into contact with each other, allowing the stirring rod to move freely while keeping the lid body 10 suspended. Therefore, even if the liquid in the container has a certain degree of viscosity, the stirring position is unlikely to be restricted, allowing for uniform stirring.

[0032] Accordingly, as described above, even if bubbles rise from the liquid, the individual sheets 10a and 10b automatically move according to the position of the bubbles, so that the release of bubbles is not hindered and the fermentation of the liquid is not hindered.

[0033] (2) Individual sheet As shown in Fig. 1, the lid body 10 according to the present invention comprises a plurality of sheet segments 10a and 10b. Fig. 2 is a perspective view showing the outer sheet segments 10a and the inner sheet segments 10b separately, which constitute the lid body 10 shown in Fig. 1, with Fig. 2(a) showing an assembly of the outer sheet segments 10a and Fig. 2(b) showing an assembly of the inner sheet segments 10b.

[0034] The individual sheet 10a is provided to fill the gap between the inner wall of the container and the lid 10. This makes it possible to more effectively prevent oxidation of the liquid. The shape of the individual sheet 10a is not particularly limited as long as it is a shape that fills the outer periphery when determining the overall shape of the lid 10. It may also be an irregular shape as shown in FIG. 2(a).

[0035] For example, in the case of the lid 10 shown in Fig. 1, the individual sheet 10a may be a circular sheet cut into a shape roughly equivalent to the cross section of the container, and the remaining individual sheet 10b having the same size and shape as the circular sheet may be separated from the circular sheet. In this case, the individual sheet 10a has an irregular shape. The individual sheet 10a may be integral, but preferably may be composed of a plurality of individual sheets 10a as shown in Fig. 2(a).

[0036] 1 and 2(b), the sheet pieces 10b may be formed by cutting out sheet pieces 10b having the same size and shape as the container from a sheet having a cross-sectional shape similar to that of the container. Although the liquid will not be instantly oxidized without the sheet pieces 10a, the presence of the sheet pieces 10a has a greater effect of suppressing the oxidation of the liquid.

[0037] Furthermore, it is preferable that the individual sheets 10b have the same size and shape. This allows them to be easily placed in containers with small openings, promotes low prices, and is easy to replace, making them highly versatile. However, to achieve the effects of this embodiment, the individual sheets do not necessarily have to be the same size or shape. They may be randomly shaped or may be different sizes.

[0038] The shape of the individual sheets 10b may be irregular. In this case, the gaps between the individual sheets 10b widen, increasing the range of movement of the individual sheets 10b, thereby improving the degree of freedom in releasing bubbles and positioning the stirring. On the other hand, although the increased gaps slightly reduce the oxidation suppression effect, the effect is not a problem in practical use.

[0039] The individual sheets 10b may have random areas and shapes, may have different areas but substantially the same shapes, or may have the same areas but different shapes. Such a relationship between area and shape allows for unhindered release of bubbles and improves the flexibility of the stirring position. For example, pentagons and hexagons may be arranged alternately.

[0040] The individual sheets 10b preferably have substantially the same area and shape. Individual sheets 10b having the same area and shape, such as the individual sheets 10b shown in Figures 1 and 2(b), are highly versatile, can reduce manufacturing costs, and can minimize gaps.

[0041] The shape of the individual sheets 10b is not particularly limited, and may be a polygon such as a triangle or a rectangle, a circle, or an ellipse, but is preferably a triangular to hexagonal shape when a higher oxidation inhibitory effect is desired. The number of individual sheets 10b may be two or more, and in consideration of the degree of freedom in foam release and stirring, it is preferably four or more, more preferably six or more, and even more preferably ten or more. On the other hand, the upper limit is not particularly limited, but from the viewpoint of oxidation inhibitory effect, it is sufficient if there are 30 or fewer divisions.

[0042] If the area of ​​the individual sheet 10b is too small, the area covering the liquid surface will be small. 2 The above is sufficient, but it may be adjusted appropriately depending on the cross-sectional area and number of containers.

[0043] The thickness of the individual sheets 10a and 10b is not particularly limited, but may be such that, even if the container lid is small, the sheet can be rolled up, the lid can be opened, and the sheet can be placed inside the container. A moderate thickness prevents the sheet from adhering to the sidewall or bottom of the container due to surface tension. When placing the lid in a container with a small lid, a soft material is preferred.

[0044] The individual sheets 10a and 10b require a certain degree of buoyancy. To achieve such buoyancy, it is preferable to select a material with a specific gravity lower than that of the liquid (water, alcohol, etc.) in the container. For example, conventionally used materials such as polyethylene, polypropylene, and polyethylene terephthalate are sufficient, and polyethylene terephthalate is preferred from the viewpoints of heat resistance, cold resistance, transparency, water resistance, etc.

[0045] 1, when lid 10 has substantially the same cross-sectional shape as the container when viewed from above, the distance between the end of lid 10, i.e., the end of sheet piece 10a, and the side wall of the container may be approximately 0.3 to 3.0 mm. If the distance is approximately 0.3 to 3.0 mm, when the container is returned to its original state after being tilted, sheet pieces 10a and 10b will not get caught on the side wall of the container and will return to a horizontal state similar to the liquid surface.

[0046] The ratio of the area of ​​the liquid surface covered by the lid 10 to the area of ​​the liquid surface ((area of ​​the lid ÷ area of ​​the liquid surface) × 100) is preferably 70 to 99% from the viewpoint of suppressing oxidation of the liquid, and more preferably 80 to 95%.

[0047] At least one of the individual sheets 10a and 10b constituting the lid body 10 may have an opening. The shape of the opening is not particularly limited, but may be at least one of slit holes, round holes, polygonal holes, elliptical holes, and irregular holes. Slit-shaped openings may be made by simply making cuts with a cutter or the like, and include linear openings with no gaps. Round holes and slit-shaped holes may be mixed. Note that, when the individual sheets 10a and 10b have openings, the "area of ​​the lid body" refers to the area including the openings.

[0048] Furthermore, the individual sheets 10a and 10b may be stacked in two or more layers. When two or more layers are stacked, an opening may be provided in at least one of the top or bottom layers. When three or more layers are stacked, an opening may also be provided in an intermediate layer. Even when the individual sheets 10a and 10b do not move when the bubbles rise and remain below each other, the bubbles are released onto the liquid surface through the opening. In particular, when the bubbles enter the opening due to surface tension, the intermolecular force between water molecules is greater than the intermolecular force between water and air, so it is presumed that the bubbles are released from the opening through the ends of the individual sheets 10a and 10b to above the liquid surface due to capillary action.

[0049] Since the lid body 10 is used while floating on the surface of the liquid introduced into the container described below, the individual sheets 10a and 10b that make up the lid body 10 do not need to be physically bonded to each other. Also, as described above, even when the individual sheets 10a and 10b are composed of two or more layers of sheets, the layers only need to be laminated by the surface tension of the liquid. Therefore, the layers do not need to be physically bonded. Even when the individual sheets 10a and 10b are laminated, the individual sheets 10a and 10b are spaced apart.

[0050] When the individual sheets 10a and 10b are multiple layers, each of the individual sheets 10a and 10b itself has sufficient buoyancy, so by simply stacking at least two sheets, capillary action can be utilized to prevent liquid and air from accumulating.

[0051] Furthermore, when the individual sheets 10a and 10b have openings and are configured by stacking multiple individual sheets 10a and 10b, the openings may or may not be located in a position that penetrates the bottom layer and the top layer. Therefore, even when the individual sheets 10a and 10b have a large number of openings, sufficient buoyancy can be obtained and bubble retention can be suppressed by capillary action. When the individual sheets 10a and 10b have openings, it is preferable that the openings be provided in each sheet at a density such that the area distribution of the openings is uniform.

[0052] Furthermore, when the individual sheets 10a and 10b have openings, the area ratio of the openings, which is the ratio of the sheet area to the total area of ​​the openings, may be approximately 0.5 to 40%. As mentioned above, the shapes of the openings vary. Therefore, the area ratio of the openings is calculated by taking the diameter of the opening as the equivalent circle diameter of the opening. The equivalent circle diameter is the length of the longest part of the opening. For example, in the case of an ellipse, the major axis is the equivalent circle diameter. Furthermore, when openings of various equivalent circle diameters exist, the frequency distribution of the equivalent circle diameters is calculated, and the sum of the multiplication results is divided by the total frequency to calculate the average equivalent circle diameter.

[0053] 2. Another form of lid FIG. 3 is a perspective view showing an example of a lid according to this embodiment. The lid 20 is the same as that shown in FIG. 2(b), and is a portion of FIG. 1 excluding FIG. 2(a). In this manner, the lid 20 may be configured only with the inner sheet 20b without the outer sheet. Although the lid 20 has a slightly smaller area covering the liquid surface than the lid 10 shown in FIG. 1, the sheet 20b has a larger operating area. Therefore, when bubbles rise, the sheet 20b moves easily due to the buoyancy of the bubbles, and the release of the bubbles is not hindered. Furthermore, the liquid in the container can be stirred by moving the sheet 20b with a stirring rod. Therefore, the liquid in the container can be stirred uniformly while the lid 20 is floating.

[0054] 3 is the same as FIG. 2(b), but the number of individual sheets 20b may be reduced if bubbles are frequently generated or if the liquid is frequently stirred. On the other hand, to further enhance the oxidation inhibitory effect, the spacing between the individual sheets 20b may be narrowed and the number of individual sheets 20b may be increased. The oxidation inhibitory effect is also improved by increasing the area of ​​the individual sheets 20b and reducing the number of sheets 20b.

[0055] 3. Another form of lid 4 is a perspective view showing an example of the lid body 30 according to the present embodiment, in which the individual sheets 30b are connected by connecting members 30c. As shown in FIG. 4, the individual sheets 30b may each have an opening 30b-1 and may be connected by connecting members 30c via the openings 30b-1.

[0056] The longer the connecting member 30c, the greater the freedom of movement of the individual sheets 30b, so the freedom of foam release and stirring is not impaired. Furthermore, if the individual sheets 30b are connected by the connecting member 30c, for example, even if the lid 30 is placed in an empty container beforehand and then liquid is introduced into the container, the individual sheets 30b can rise to the liquid surface while maintaining a certain degree of positional relationship so that the lid 30 covers the liquid surface.

[0057] The opening 30b-1 may also serve as the opening described above. Furthermore, in addition to the openings described above, holes may be provided in the corners of each sheet piece 30b, as shown in FIG. 4, in order to connect the individual sheets 30b. It is not necessary for all of the openings 30b-1 to be used for connection. As long as the individual sheets 30b can maintain their relative positions, it is preferable that the number of points where they are connected by the connecting member 30c be kept as small as possible. It is sufficient for the individual sheets 30b to be connected via at least one opening. This is because this improves the freedom of movement and stirring of the individual sheets 30b when releasing foam.

[0058] The material of the connecting member 30c may be the same as that of the individual sheets 30b so as not to affect food, etc. The connecting member 30c preferably connects the individual sheets 30b via the openings 30b-1 that are closest to each other. In this case, the length of the connecting member 30c may be approximately 1.5 to 8 times the distance between the openings 30b-1. Within this range, the freedom of movement of the individual sheets 30b is maintained. Note that the length of the connecting member 30c in this embodiment refers to the length of the connecting member 30c after connecting the openings 30b-1, as indicated by L in FIG. 4. If the connecting member 30c is string-shaped, as shown in FIG. 4, it can connect the individual sheets 30c regardless of the shape of the openings.

[0059] 4. How the lid is used 5 is a perspective view showing a state in which the lid 10 according to this embodiment floats on the liquid surface in a container. The lid 10 floats on the liquid surface 13 of the liquid 14 contained in the container 12. When bubbles rise from inside the liquid 14 due to fermentation of the liquid 14, the buoyancy of the bubbles causes the individual sheets 10a and 10b to move away from the bubbles until adjacent individual sheets 10a and 10b come into contact with each other and / or until the individual sheet 10a comes into contact with the inner wall of the container. This allows for free release of the bubbles and stirring.

[0060] Outer sheet piece 10a can move up to the inner wall of container 12, allowing sheets 10a and 10b to move freely within a wide range of movement. This allows a stirring rod (not shown) to be placed in liquid 14 at any stirring position, and even if container 12 is a large-capacity container used in a sake brewery or the like, liquid 14 can be stirred uniformly while suspending lid 10.

[0061] 5. Lid manufacturing method The method for manufacturing the lid body 10 according to the present invention includes a step of processing a sheet material into a predetermined shape and then cutting it into individual sheets 10a and 10b. When the sheet material is composed of individual sheets 20b of the same shape and area, as in the case of the lid body 20, the shape of the individual sheets 20b can be efficiently cut out from the sheet material. When openings are to be provided in the individual sheets 10a and 10b, holes may be made with a punch. Alternatively, slit-shaped openings may be provided by cutting the sheet material with a cutter or the like.

[0062] 6. Container The container according to the present invention includes a lid according to this embodiment. The container is not particularly limited and may be various liquid containers, such as large cylindrical containers used in sake brewing, soy sauce dispensers, wine bottles, and one-liter bottles. The shape of the lid according to this embodiment can be adjusted appropriately to match the cross-sectional shape of the container, and the material of the container sidewall may be a conventional material, such as PET, glass, or stainless steel, without any particular limitation.

[0063] Furthermore, the container according to the present invention is not limited to one containing a liquid, but also includes one not containing a liquid. The shape of the container 12 may be substantially cylindrical as shown in Fig. 5, and the shape of the opening and the cross-sectional shape of the container may be substantially the same. If the container has a large opening as shown in Fig. 5, the lid 10 can be easily and orderly placed on the liquid surface 13. [Explanation of symbols]

[0064] 10, 20, 30 Lid 10a (outer) individual sheet 10b, 20b, 30b (inside) individual sheet 12 containers 13 Liquid level 14 liquid 30b-1 Opening 30c Connecting member

Claims

1. A lid body that floats on the liquid surface in a container, The lid body is made up of at least two or more individual sheets spaced apart from each other. A lid body characterized by:

2. The lid according to claim 1 , wherein the individual sheets are connected by a connecting member.

3. The lid according to claim 1 or 2, wherein the individual sheet has openings that are at least one of slit holes, round holes, polygonal holes, elliptical holes, and irregular holes.

4. The lid according to any one of claims 1 to 3, wherein the individual sheets are substantially the same in size.

5. The lid according to any one of claims 1 to 4, wherein the individual sheet is formed by stacking a plurality of sheets.

6. A container comprising the lid according to any one of claims 1 to 5.

Images