Sealed container

Abstract

To provide a sealed container having good sealing properties and aesthetic appearance. [Solution] A sealed container 1 having a container lid 3 and a container body 5 is configured so that a first ring-shaped member 7 having an insertion portion 11 for sealing with the container body is attached below the inner surface of the container lid, and a second ring-shaped member 9 is attached to the inner surface of the opening of the container body, and the insertion portion of the first ring-shaped member is inserted into and fitted into the inner surface of the second ring-shaped member. The second ring-shaped member has a step or protrusion on its inner surface.

Description

[Technical Field]

[0001] The present invention relates to a sealed container, and more particularly to a sealed container that is composed of a container body and a container lid, and that seals the inside of the container by inserting the container lid into the container body. [Background technology]

[0002] 2. Description of the Related Art In order to prevent drying and the like, foods such as tea, coffee, seaweed, and rice crackers are often stored in airtight containers. Various types of such sealed containers have been disclosed. Specifically, the applicant of the present application has disclosed a technique for a sealed container in, for example, Patent Document 1. Patent Document 1 describes a sealed container that is configured to seal the opening of the container body by fitting a container lid onto the opening, and is an improved sealed container that maintains high sealing properties and allows the container lid to be easily removed without damaging the aesthetic appearance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] The container of Patent Document 1 (Utility Model Registration No. 3193470) maintains high sealing performance and exhibits excellent effects without impairing aesthetics. However, there is still room for improvement in terms of sealing performance and aesthetics. Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, the inventors of the present invention set out to develop a sealed container that is excellent in terms of sealing performance and aesthetics. [Means for solving the problem]

[0005] As a result of intensive testing and research by the inventors of the present application, a sealed container having a container lid and a container body is configured such that a first ring-shaped member having an insertion portion for fitting and sealing with the container body is first attached to the inner surface of the container lid. Furthermore, it was discovered that by attaching a second ring-shaped member to the inner surface of the opening of the container body and inserting the insertion portion of the first ring-shaped member into the inner surface of the second ring-shaped member and fitting it together, excellent sealing properties and aesthetic appeal could be achieved, leading to the completion of the present invention.

[0006] That is, the first invention of this application is "A container lid portion, a first ring-shaped member attached to the inner surface of the opening of the container lid and having an insertion portion for sealing with the container body; A container main body; a second ring-shaped member attached to the inner surface of the opening of the container body, the inner surface of which fits into the insertion portion of the first ring-shaped member; A sealed container with a

[0007] Next, the second ring-shaped member preferably has one or more steps or protrusions on its inner surface. That is, the second invention of this application is, "The sealed container according to claim 1, wherein the second ring-shaped member has one or more steps or protrusions on its inner surface."

[0008] Next, the first ring-shaped member and the second ring-shaped member are preferably made of polyethylene. That is, the third invention of this application is: "The sealed container according to claim 1 or 2, wherein the first ring-shaped member and the second ring-shaped member are made of polyethylene."

[0009] Next, the sealed container of the present invention can be suitably used for preserving food, such as dried food. That is, the fourth invention of this application is, "The sealed container according to claim 1 or 2, wherein the sealed container is a sealed container for storing food." [Effects of the Invention]

[0010] The sealed container of the present invention has excellent sealing properties and is also aesthetically pleasing. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a longitudinal cross-sectional view of a portion of the container body and the container lid, with the container lid removed from the opening of the container body. [Figure 2] 1 is a perspective view of a sealed container according to an embodiment of the present invention, in which (1) is a diagram showing the state in which the container lid is closed (sealed state), and (2) is a diagram showing the state in which the lid is opened upward. [Figure 3] 2 is a partial view of a central cross section of the container body and the container lid in FIG. 1. FIG. [Figure 4] FIG. 2 is a perspective view of a first ring-shaped member according to an embodiment of the present invention. [Figure 5] FIG. 2 is a central cross-sectional view of a first ring-shaped member according to an embodiment of the present invention. [Figure 6] FIG. 10 is a central cross-sectional view of a modified example of the first ring-shaped member of the present invention. [Figure 7] FIG. 2 is a perspective view of a second ring-shaped member according to an embodiment of the present invention. [Figure 8] 1 is a partial view of a central cross section of a second ring-shaped member and a container body according to an embodiment of the present invention; FIG. [Figure 9] 10 is a partial view of a center cross section of a modified example of the second ring-shaped member and the container body of the present invention. FIG. [Figure 10] 1 is a perspective view of another example of a case in which a user opens and closes the sealed container of the present invention, showing the state before the container body and the container lid are separated. [Figure 11] 10 is a perspective view of another example of a sealed container of the present invention when opened and closed by a user, showing the state after the container body and the container lid have been separated. FIG. [Figure 12] 1 is a perspective view of another example of a case in which a user opens and closes the sealed container of the present invention, showing the state before the container body and the container lid are separated. [Figure 13] 10 is a perspective view of another example of a sealed container of the present invention when opened and closed by a user, showing the state after the container body and the container lid have been separated. FIG. [Figure 14] FIG. 2 is a central cross-sectional view showing the function of the first ring-shaped member of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described below with reference to embodiments, but the present invention is not limited to these embodiments. The present invention is "A container lid portion, a first ring-shaped member attached to the inner surface of the opening of the container lid and having an insertion portion for sealing with the container body; A container main body; a second ring-shaped member attached to the inner surface of the opening of the container body, the inner surface of which fits into the insertion portion of the first ring-shaped member; "A sealed container comprising:" This will be explained below.

[0013] FIG. 1 is an explanatory diagram showing a schematic view of a sealed container 1 according to an embodiment of the present invention, and is a longitudinal cross-sectional view of a portion of the container body 5 and the container lid 3 with the container lid 3 removed from the opening of the container body 5. Next, Figure 2 is an oblique view of a sealed container 1 according to an embodiment of the present invention, where (1) shows the state in which the container lid portion 3 is closed (sealed state), and (2) is an image showing the state in which the container lid portion 3 is open upward. Next, FIG. 3 is a partial cross-sectional view of the sealed container 1 according to the embodiment of the present invention, showing the cross-sectional shapes of the first ring-shaped member 7 and the second ring-shaped member 9, etc.

[0014] ─Sealed container─ The present invention is directed to a sealed container 1. Here, the sealed container 1 is a container that is covered with a lid to store foods such as seaweed, potato chips, and rice crackers, preventing them from absorbing moisture and becoming soggy. It should be noted that the objects to be stored are not limited to food, and it is of course possible to store various items other than food that need to be protected from moisture. Furthermore, by placing an oxygen absorber or desiccant inside, it is possible to further reduce moisture absorption by the stored food and other items, thereby protecting the contents inside, such as dried food.

[0015] ─Container lid and container body─ As shown in Figures 1 and 2, the sealed container 1 of the present invention is composed of a container lid 3 and a container body 5. The materials of the container lid 3 and the container body 5 are not particularly limited, and various materials such as tin cans, steel cans, and aluminum cans can be used. In particular, the present invention can be suitably used for tin cans, which use tin-plated steel sheets.

[0016] In the present invention, the container lid 3 and the container body 5 may be made of different materials, or may be made of the same material. However, in the present invention, the container lid portion 3 and the container body portion 5 can be made of the same material, which makes it possible to achieve a more aesthetically pleasing appearance than, for example, when the materials of the container lid portion 3 and the container body portion 5 are different.

[0017] For example, if the material of the container body 5 is tinplate, the material of the container lid 3 can also be tinplate. In particular, the overall aesthetic appearance in the sealed state 1 in which the container lid 3 is inserted into the container body 5 and integrated can be improved by achieving a sense of unity and excellent aesthetics. Furthermore, the sealed container 1 of the present invention is preferably used primarily as a cylindrical sealed container, but is not particularly limited thereto.

[0018] First ring-shaped member In the present invention, a first ring-shaped member 7 as shown in Figure 4 is attached to the container lid 3. The first ring-shaped member 7 has an insertion portion 11 that is inserted into and fits onto the inner surface of a second ring-shaped member 9 that is attached to the inner surface of the opening of the container body 5 (described later). In this way, a tight contact state is achieved by inserting and fitting the insertion portion 11 of the first ring-shaped member 7 into the inner surface of the second ring-shaped member 9. This achieves the hermeticity of the container of the present invention.

[0019] Next, when the first ring-shaped member 7 is attached to the container lid portion 3, it is configured so that the insertion portion 11 protrudes from the lower end of the container lid portion 3 when attached to the container lid portion 3, as shown in Figures 1 and 3.

[0020] Furthermore, in order to ensure the above-mentioned sealing performance, the material of the first ring-shaped member 7 is preferably one that can deform under pressure. Examples of such materials include various plastics and rubbers. Examples include plastics such as polyethylene, polyethylene terephthalate, and polypropylene, but polyethylene, which has relatively high flexibility, is particularly suitable.

[0021] The method of attaching the first ring-shaped member 7 to the container lid portion 3 is not particularly limited, but for example, in the first embodiment of the present application, the shape of the first ring-shaped member 7 has an inclined convex portion 13 around its outer periphery (Figure 5). As shown in Figures 1 and 3, when a curled portion (bent portion) 15 is formed on the inner surface of the lower end of the opening of the container lid portion 3, the curled portion 15 on the inner surface of the opening of the container lid portion 3 is configured to engage with the inclined convex portion 13 on the outer periphery of the first ring-shaped member 7.

[0022] In this way, the curled portion 15 on the inner surface of the lower end of the container lid portion 3 engages with the inclined convex portion 13 on the outer periphery of the first ring-shaped member 7, thereby preventing the first ring-shaped member 7 from easily falling off the container lid portion 3.

[0023] Furthermore, with regard to this structure, for example, when the materials of the container lid portion 3 and the container body portion 5 are tinplate or stainless steel, it is possible to manufacture it by inserting a first ring-shaped member 7 inside the container lid portion 3 and then winding the opening of the container lid portion 3 inward. However, the above-described embodiment is merely an example, and it goes without saying that other configurations may be used in which the first ring-shaped member 7 is attached to the inner surface side of the container lid portion 3.

[0024] Next, in the present invention, the first ring-shaped member 7 has an insertion portion 11 that fits tightly with the inner surface of the second ring-shaped member 9, which will be described later. In the first embodiment of the present invention, as shown in FIGS. 1 and 3, the lower portion of the first ring-shaped member 7 serves as an insertion portion 11.

[0025] The shape of the insertion portion 11 is not particularly limited, and any shape is possible as long as it fits into and adheres tightly to the inner surface of the second ring-shaped member 9 described below. In addition, in an embodiment of the present invention, as shown in Figures 1 and 3, the structure near the lower end of the second ring-shaped member 9 has an inclined surface that slopes toward the inside of the container so that when inserting it into the second ring-shaped member 9 described below, it can be inserted smoothly without getting caught.

[0026] In the embodiment of the present invention, the first ring-shaped member 7 is shown as a complete ring-shaped member with open top and bottom as shown in Figures 4 and 5, but for example, a thin plate-like connecting portion 17 may be formed at the top end of the first ring-shaped member 7 as shown in Figure 6. In this way, various shapes are possible as long as there is a portion having a ring shape.

[0027] -Second ring-shaped member- In the present invention, a second ring-shaped member 9 is attached to the container body 5. As shown in Figures 3 and 7, the second ring-shaped member 9 has an inner surface that is inserted into and fitted with the insertion portion 11 of the first ring-shaped member 7 that is attached to the inside of the opening of the container lid 3 described above, and the fitting of the insertion portion 11 of the first ring-shaped member 7 into the inner surface of the second ring-shaped member 9 achieves the hermetic sealing of the container of the present invention.

[0028] The shape of the second ring-shaped member 9 is not particularly limited, but various shapes are possible as long as it is attached to the container body as shown in Figure 1 and has an inner surface that fits into the insertion portion 11 of the first ring-shaped member 7. Furthermore, in order to ensure the above-mentioned sealing performance, the material of the second ring-shaped member 9 is preferably one that can deform under pressure. Examples of such materials include various plastics and rubbers. Examples include plastics such as polyethylene, polyethylene terephthalate, and polypropylene, but polyethylene, which has relatively high flexibility, is particularly suitable.

[0029] The method of attaching the second ring-shaped member 9 to the container body 5 is not particularly limited, but for example, in the first embodiment of the present application, the shape of the second ring-shaped member 9 is configured to have multiple steps 19 on its inner side, as shown in Figures 1 and 3. As shown in Figure 3, when a curled portion (bent portion) 21 is formed at the upper end of the inner surface of the opening of the container main body 5, the curled portion 21 on the inner surface of the container main body 5 is configured to engage with the step 19 near the upper end of the second ring-shaped member 9.

[0030] In this way, by configuring the curled portion 21 on the inner surface of the upper end of the container main body 5 to engage with the step 19 near the upper end of the second ring-shaped member 9, the second ring-shaped member 9 is prevented from easily falling off the container main body 5. Furthermore, with regard to this structure, for example, if the material of the sealed container 1 of the present invention is tinplate or stainless steel, it can be manufactured by inserting the second ring-shaped member 9 inside the container main body 5 and then winding it inward.

[0031] —Step or protrusion of second ring-shaped member— Next, the inner surface of the second ring-shaped member 9 that fits into the insertion portion 11 of the first ring-shaped member 7 may be flat. However, it is preferable that the inner surface has a plurality of steps 19 as shown in Figure 3 of the embodiment of the present application. By having the step 19 compared to a flat state without the step 19, even when the insertion / fitting portion 11 is inserted and fitted to form a structure in which the first ring portion and the second ring portion are in close contact with each other, excessive contact can be avoided. This makes it possible to avoid difficulties in opening and closing the container lid 3 and to adjust it so that it has an appropriate degree of adhesion.

[0032] In other words, the user of the sealed container 1 of the present invention can use it without applying excessive force when opening or closing the lid. This is because when the insertion portion 11 of the first ring-shaped member 7 is inserted and fitted into a tight fit, the pressure applied to the inner surface of the second ring-shaped member 9 by the fitting (fitting) as shown in Figure 8 allows the provided step 19 portion to deform relatively easily compared to a flat state without the step 19.

[0033] This allows the degree of sealing to be adjusted relatively easily, making it possible to easily adjust the strength of sealing. In the embodiment of the present invention, as shown in Figure 3, two steps 19 are provided, which allows the user to open and close the sealed container 1 of the present invention in a way that suits them depending on the intended use. Here, the number of stages is not particularly limited, but is preferably within the range of about 1 to 4 stages, and more preferably 2 or 3 stages. The step 19 may be a protrusion 23 as shown in Fig. 9. Even with this shape, the same effect as the step 19 can be achieved.

[0034] ─Example of opening and closing the sealed container of the present invention─ The following describes the opening and closing of the container lid 3 from the container body 5 in the sealed container 1 of the present invention. There are no particular limitations on the method for opening and closing the sealed container 1 of the present invention, and various methods are of course possible. The following are examples.

[0035] (Example 1) For example, when opening the sealed container 1 of the present invention, the user firmly holds the body of the container body 5 of the sealed container 1 of the present invention from both sides as shown in Figure 10. The user also presses the rear side of the container lid 3 with both index fingers and / or middle fingers, and also presses the front side of the container lid 3 with both thumbs bent.

[0036] Next, while firmly gripping the body of the container main body 5 from the left and right, and pressing the rear side of the container lid 3 with both index fingers and / or middle fingers as seen from the user's perspective, press the front side of the container lid 3 with both thumbs, and while extending both thumbs upward, push the front side of the container lid 3 upward. As a result, as shown in FIG. 10, the container lid 3 opens so that the rear side of the container lid 3 becomes the approximate center of rotation, and the container lid 3 can be removed as shown in FIG.

[0037] Next, when attaching the container lid part 3, the container body part 5 is placed on a desk or the like, and while holding the container body part 5 with the left hand, the container lid part 3 is placed on top of the container body part 5 and pressed down from above, thereby attaching the container lid part 3 to the container body part 5 and creating a sealed state.

[0038] (Example 2) When opening the sealed container 1 of the present invention, the user (if right-handed) holds the main end with the left hand and clamps the container lid 3 with the right hand, as shown in Figure 12. It is also preferable to perform this operation while the sealed container 1 is placed on a desk or the like. Next, the user can remove the container lid portion 3 by fixing the position of the container body portion 5 with the left hand, gently rotating the right hand, and pulling it upward, and the container lid portion 3 can be removed as shown in Figure 13.

[0039] In the present invention, the first ring-shaped member 7 is hollow inside due to its ring shape, so that it can bend inward even if a strong pressure is applied from the outside to the insertion portion 11 of the first ring-shaped member 7 attached to the container lid 3, as shown in Figure 14. This structure allows the insertion portion 11 of the first ring-shaped member 7 to be flexible, making it relatively easy to adjust the degree of sealing depending on the application of the sealed container 1 of the present invention. That is, when high sealing performance is required, the degree of sealing can be made higher, and when low sealing performance is acceptable, the degree of sealing can be made lower.

[0040] This can be achieved, for example, by adjusting the shape of the radius of the insertion portion 11 of the first ring-shaped member 7 and the shape of the radius of the inner surface of the second ring-shaped member 9, or by selecting the materials of the first ring-shaped member 7 and the second ring-shaped member 9. Furthermore, methods such as varying the shape of the insertion portion 11 of the first ring-shaped member 7 and the shape of the inner surface of the second ring-shaped member 9 can also be used. [Explanation of symbols]

[0041] 1 Sealed container 3 Container lid 5. Container body 7 First ring-shaped member 9 Second ring-shaped member 11 Insertion part 13 Inclined convex part 15 Curl part (container lid part) 17 Connecting part 19 Steps 21 curl part (container body part) 23 Protrusion

Claims

1. A container lid portion; a first ring-shaped member attached to the inner surface of the opening of the container lid and having an insertion portion for sealing with the container body; A container main body; a second ring-shaped member attached to the inner surface of the opening of the container body, the inner surface of which fits into the insertion portion of the first ring-shaped member; A sealed container comprising:

2. 2. The sealed container according to claim 1, wherein the second ring-shaped member has one or more steps or protrusions on its inner surface.

3. 3. The sealed container according to claim 1, wherein the first ring-shaped member and the second ring-shaped member are made of polyethylene.

4. The sealed container according to claim 1 or 2, which is a sealed container for storing food.

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