Hermetically sealed cap and sealed container

Abstract

This invention discloses a sealing cap and a sealing container. According to one aspect of the invention, the sealing container may include a container body having an opening, and a sealing cap that can be detachably attached to the opening of the container body. The sealing cap may include: a cap body configured to cover the opening; a hinge seat extending outward from the cap body; a flap rotatably connected relative to the hinge seat via a curved portion on one side; and a support protrusion extending from the side of the flap toward the cap body, and having a contact portion at its end configured to contact the container body. When the flap rotates downward relative to the hinge seat, the contact support surface of the contact portion can be pressed against the container body to attach the sealing cap to the container body. When a virtual line extending horizontally from the center of the cap body toward the center of the contact support surface is defined as a reference line, and the point where the container body applies outward vertical resistance to the contact support surface is defined as a pressing point, in the state where the sealing cap is attached to the container body, the curved portion may be located below the pressing point and outward along the direction of the reference line relative to the pressing point.

Description

Technical Field

[0001] This invention relates to a sealed container, specifically, to a sealed cap and sealed container that are easy to manufacture, convenient to use, and easy to open. Background Technology

[0002] Sealed containers are widely used for hygienic food storage and to extend shelf life. In commonly used sealed containers, one or more protrusions are formed on the container body, and one or more locking wings are formed on the lid, each having a locking portion configured to engage with the protrusion. In this type of sealed container, the user can close the sealed container by rotating the locking wings of the lid downwards to engage the locking portions of the locking wings with the protrusions, and can open the sealed container by rotating the locking wings of the lid upwards to release the engagement between the locking portions of the locking wings and the protrusions.

[0003] In such a sealed container, a protrusion needs to be formed on the container body to securely engage with the locking wing. To allow the lid to be attached to the container body regardless of orientation, it is formed along the entire upper part of the container body or on all four sides of the container body. However, this results in a drawback where the lid cannot be used normally with containers other than those manufactured with protrusions, leading to very low usability.

[0004] Furthermore, the protruding parts from the surface of the container body can make this part difficult to clean. Specifically, because the upper and lower parts of the protrusion form sharp gaps relative to the container body, extra care may be needed when cleaning this part. When sealed containers are used to store food, there are concerns about hygiene issues because the protrusion, located on the upper part of the container body around the opening, is the part that most requires cleanliness, yet its cleanliness level is particularly poor. In addition, the protrusion on the container body makes storing and carrying the container inconvenient, and even after the lid's locking mechanism has been disengaged, it may still become an obstacle during use, such as colliding with the lid and locking fins.

[0005] On the other hand, considering the manufacturing of sealed containers, in sealed containers utilizing locking wings, the locking part of the locking wing and the protrusion of the container body must precisely engage for use, thus requiring a more refined manufacturing process. Given that typical storage containers are made of materials such as glass, ceramics, and stainless steel, and that the manufacturing tolerances of these materials can be as high as + / -2mm, the possibility of defects such as the locking part and the protrusion failing to engage properly is inevitably high in the aforementioned prior art. Summary of the Invention

[0006] Technical issues

[0007] Therefore, the present invention was proposed to solve the above-mentioned problems. One aspect of the present invention aims to provide a sealing cap and sealing container that can be used even in a container body without protrusions, and is therefore easy to manufacture, convenient to use, and easy to open.

[0008] Other objects of the present invention will become clearer from the embodiments described below.

[0009] Technical solution

[0010] A sealed container according to one aspect of the invention may include a container body having an opening and a sealing cap that can be detachably attached to the opening of the container body. The sealing cap may include: a cap body configured to cover the opening; a hinge seat extending outward from the cap body; a flap rotatably connected relative to the hinge seat via a curved portion on one side; and a support protrusion extending from the side of the flap toward the cap body, and having a contact portion at its end configured to contact the container body. When the flap rotates downward relative to the hinge seat, the contact support surface of the contact portion can be pressed against the container body to attach the sealing cap to the container body. When a virtual line extending horizontally from the center of the cap body toward the center of the contact support surface is defined as a reference line, and the point where the container body applies outward vertical resistance to the contact support surface is defined as a pressing point, in the state where the sealing cap is attached to the container body, the curved portion may be located below the pressing point and outward along the direction of the reference line relative to the pressing point.

[0011] According to another aspect of the invention, a sealed container may also include a container body having an opening and a sealing cap detachably attached to the opening of the container body. The sealing cap may include: a cap body configured to cover the opening; a hinge seat extending outward from the cap body; a flap rotatably connected relative to the hinge seat via a bend on one side; and a support protrusion extending from the side of the flap toward the cap body and having a contact portion at its end configured to contact the container body. When the flap is rotated downward relative to the hinge seat, the contact support surface of the contact portion may come into contact with the container body, thereby attaching the sealing cap to the container body. When a virtual line extending horizontally from the center of the cap body toward the center of the contact support surface is defined as a reference line, and the point where the container body applies vertical resistance toward the contact support surface toward the outside and below is defined as a pressing point, in the state where the sealing cap is attached to the container body, the bend may be located inward relative to the pressing point along the direction of the reference line.

[0012] The sealing container of the present invention may have one or more of the following embodiments. For example, the container body may include a body edge, which is formed such that the outer diameter at a first point is greater than the outer diameter at a second point lower than the first point, and in the state where the sealing cap is attached to the container body, the contact support surface may contact the first point and the second point.

[0013] When the blade rotates downward relative to the hinge seat to a predetermined angle, the end of the contact portion can contact the container body. When a greater force is applied to the blade, at least one of the contact portion, the support protrusion, and the bend can elastically deform to allow the contact portion to pass through.

[0014] The container body can be manufactured by blow molding, and includes a portion below the edge of the body having an outer diameter larger than that of the first point.

[0015] The sealing cap may further include a cap rim extending downward from the edge of the cap body, and the hinge seat may extend outward from a designated position on the outer surface formed by the cap body and the cap rim.

[0016] The wing can be connected to a pair of hinge seats via a pair of curved portions. The support protrusion can extend between the pair of curved portions in a direction toward the cover body. A clearance groove can be formed in the cover edge at a position corresponding to the space between the pair of hinge seats. When the wing rotates, the support protrusion passes through the clearance groove.

[0017] The sealing cap may further include a locking protrusion extending inward from the lower portion of the cap edge. When the container body includes a body edge with an outer diameter at a first point that is larger than the outer diameter at a second point lower than the first point, the locking protrusion may include inclined surfaces that contact the first and second points when the sealing cap is engaged with the container body.

[0018] The cross-section of the container body can be one of a circle, a polygon, or a combination of a circle and a polygon.

[0019] The sealing cover may include multiple flaps.

[0020] At least a portion of the contact support surface, the contact portion, and the support protrusion can be interchangeably coupled to the winglet. In this case, at least a portion of the contact support surface, the contact portion, and the support protrusion can have a lower elastic modulus than that of the winglet.

[0021] Another aspect of the present invention provides a sealing cap that can be detachably attached to an opening of a container body. Such a sealing cap may include: a cap body configured to cover the opening; a hinge seat extending outward from the cap body; a flap rotatably connected relative to the hinge seat via a bend on one side; and a support protrusion extending from the side of the flap in a direction toward the cap body, and having a contact portion at its end configured to contact the container body. When the flap rotates downward relative to the hinge seat, the contact support surface of the contact portion can be pressed against the container body to attach the sealing cap to the container body. When a virtual line extending horizontally from the center of the cap body toward the center of the contact support surface is defined as a reference line, and the point where the container body applies outward vertical resistance to the contact support surface is defined as a pressing point, in the state where the sealing cap is attached to the container body, the bend may be located below the pressing point and outward along the direction of the reference line relative to the pressing point.

[0022] Another aspect of the present invention provides a sealing cap that can be detachably attached to an opening of a container body. Such a sealing cap may include: a cap body configured to cover the opening; a hinge seat extending outward from the cap body; a flap rotatably connected relative to the hinge seat via a bend on one side; and a support protrusion extending from the side of the flap toward the cap body, and having a contact portion at its end configured to contact the container body. When the flap is rotated downward relative to the hinge seat, the contact support surface of the contact portion can be pressed against the container body to attach the sealing cap to the container body. When a virtual line extending horizontally from the center of the cap body toward the center of the contact support surface is defined as a reference line, and the point where the container body applies vertical resistance toward the contact support surface toward the outside and below is defined as a pressing point, in the state where the sealing cap is attached to the container body, the bend can be located inward relative to the pressing point along the direction of the reference line.

[0023] The effects of the invention

[0024] Based on the technical solution described above for solving the problems of this invention, various effects including the following can be expected. However, this invention is not required to achieve all of these effects.

[0025] According to an embodiment of the present invention, a sealing cap and a sealing container are capable of sealing the container body even if the protrusion is not formed on the container body. This provides the effect of making it easier to manufacture the sealing cap and the container body, and making it easier to use and open the sealing container. Attached Figure Description

[0026] Figure 1 This is a perspective view of a sealed container exemplarily illustrating an embodiment of the present invention.

[0027] Figure 2 This is a perspective view of the container body of a sealed container according to an embodiment of the present invention, viewed from above.

[0028] Figure 3 This is a perspective view of a sealing cap according to an embodiment of the present invention, viewed from below.

[0029] Figures 4 to 6 This is a diagram illustrating the sealing process of a sealing container according to an embodiment of the present invention.

[0030] Figure 7 This is a cross-sectional view showing an enlarged view of the contact portion in a sealed container according to an embodiment of the present invention. Detailed Implementation

[0031] This invention can have various modifications and multiple embodiments, some of which will be shown in the accompanying drawings and described in detail. However, this is not intended to limit the invention to specific implementations, but rather to include all modifications, equivalents, and even substitutions falling within the spirit and technical scope of this invention. In describing this invention, detailed descriptions of relevant prior art are omitted when it is determined that such detailed descriptions may obscure the essence of the invention.

[0032] The terminology used in this application is for describing specific embodiments only and is not intended to limit the invention. Unless the context clearly indicates otherwise, singular expressions include plural expressions. In this application, terms such as "comprising" or "having" should be understood as being intended to specify the presence of features, numbers, steps, actions, constituent elements, components, or combinations thereof recorded in the specification, and are not intended to presuppose the presence or addability of one or more other features or numbers, steps, actions, constituent elements, components, or combinations thereof.

[0033] The terms "first," "second," etc., may be used to describe multiple constituent elements, but these constituent elements should not be limited by these terms. These terms are used only for the purpose of distinguishing one constituent element from another.

[0034] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the description with reference to the drawings, the same or corresponding components are given the same reference numerals, regardless of the reference numerals, and repeated descriptions thereof are omitted.

[0035] Figure 1 This is a perspective view illustrating a sealed container 1000 according to an embodiment of the present invention. Figure 2 This is a perspective view of the container bodies 500a and 500b of the sealed container 1000 as seen from above. Figure 3 This is a three-dimensional view of the sealing cap 100 viewed from below.

[0036] Reference Figures 1 to 3 According to an embodiment of the present invention, a sealed container 1000 may include a sealing cap 100 and a container body 500. The sealing cap 100 may be detachably attached to an opening 550 of the container body 500 to seal the interior of the container body 500.

[0037] First, refer to Figure 2 The container body 500 can form an internal space, and this internal space can be opened through an opening 550 formed at the top. For ease of explanation, the portion around the opening 550 in the container body 500 is referred to as the body edge 510, and the outer diameter of the portion with the largest outer diameter in the body edge 510 is referred to as the first outer diameter.

[0038] exist Figure 2 In the container body 500a shown in (a), a second outer diameter portion 520 having a second outer diameter smaller than the first outer diameter is formed below the body edge 510, and a third outer diameter portion 530a below the second outer diameter portion 520 has an outer diameter smaller than the second outer diameter.

[0039] On the other hand, Figure 2 In the container body 500b shown in (b), the body edge 510 is formed in the same way as the second outer diameter portion 520, but the third outer diameter portion 530b has a larger outer diameter than the second outer diameter. Figure 2 The container body 500b shown in (b) can be manufactured, for example, by blow molding. When blow molding is used, the container body 500b can include a portion below the body edge 510 that has an outer diameter larger than the first point of the body edge 510 (e.g., a portion having a first outer diameter).

[0040] like Figure 2 As shown, in the structure of the container body 500 including a second outer diameter portion 520 below the body edge 510, the body edge 510 may have a first point 512 (see reference). Figures 5 to 7 The outer diameter ratio at point 517 is lower than that at point 512 at point 512 (refer to point 517). Figures 5 to 7 The shape with a large outer diameter. A sealed container 1000 according to an embodiment of the present invention may include... Figure 2The container bodies 500a and 500b are shown, but the present invention is not limited thereto. For example, even if the first point 512 and the second point 517 of the body edge 510 do not have a natural inclination or curvature but form a sharp protrusion or boss, it is possible to achieve a first point 512 with a larger outer diameter at a higher position and a second point 517 with a smaller outer diameter at a lower position.

[0041] Furthermore, the body edge 510 of the container body 500 does not necessarily have a shape with a smaller outer diameter at the second point 517 compared to the first point 512. Even if the body edge 510 maintains the same outer diameter over a predetermined length in the vertical direction, a sealing cap 100 of an embodiment of the present invention can be incorporated.

[0042] Since the sealing cap 100 can be applied even when the body edge 510 maintains the same outer diameter, the sealing cap 100 of one embodiment of the present invention can be applied to a wide variety of container bodies 500. The cross-section of the container body 500 can be circular, polygonal, a combination of circular and polygonal shapes, and many other shapes, and even the cross-section of the body edge 510 can be circular or polygonal.

[0043] Reference Figure 3 The sealing cap 100 can be detachably attached to the opening 550 of the container body 500, and can be configured to seal the interior of the container body 500 when the sealing cap 100 is attached to the container body 500. The sealing cap 100 may include all or part of the following: cap body 110, cap edge 120, internal rib 130, cap boss 140, clearance groove 150, locking protrusion 160, hinge seat 170, bend 180, and flap 190. The flap 190 may also include a support protrusion 200 and a contact portion 210, the contact portion 210 including a contact support surface 220.

[0044] The lid body 110 is configured to cover the opening 550 of the container body 500, and typically occupies the largest area of ​​the sealing lid 100. It can be constructed entirely flat, but can also be implemented in various shapes as needed. In some embodiments, the lid body 110 may be made entirely or partially of a transparent material. Since the lid body 110 serves to cover the opening 550 of the container body 500, the diameter of the lid body 110 can be greater than the outer diameter of the body edge 510.

[0045] The rim 120 can extend downward from the edge of the lid body 110. The inner rib 130 can extend downward with a smaller diameter inside the rim 120; preferably, the outer diameter of the inner rib 130 can be formed smaller than the opening 550 of the container body 500. When the user attaches the sealing lid 100 to the container body 500, the body edge 510 of the container body 500 can be inserted between the rim 120 and the inner rib 130 of the sealing lid 100. A locking protrusion 160 can be formed at a desired location on the rim 120, and when a corresponding hole 135 is formed in the inner rib 130, injection molding using a sliding core mold can be employed in the manufacture of the sealing lid 100.

[0046] A boss 140 may be formed on the edge of the cap body 110 on the inner side of the cap rim 120. The boss 140 may form a sealing groove 145 for insertion into a seal (not shown) together with the inner rib 130. When the user attaches the sealing cap 100 to the container body 500, the seal (not shown) of the container body 500 may press against the body rim 510 to seal the interior of the container body 500.

[0047] The clearance groove 150 corresponds to the portion of the groove formed on the cover flange 120. For example... Figure 3 As shown, in order to prevent the cover edge 120 from obstructing the movement of the contact portion 210 when the user moves the wing 190, a clearance groove 150 can be formed in the cover edge 120 at a position corresponding to the support protrusion 200 and the contact portion 210.

[0048] The locking protrusion 160 can be configured to extend inwardly from the lower part of the cover edge 120 at a specific location. Figure 3 In the illustrated embodiment, the lower surface of the locking protrusion 160 is flat on a horizontal plane parallel to the cover body 110, and the upper surface of the locking protrusion 160 forms an inclined surface 165. For example... Figure 2 As described, when the body edge 510 has a shape in which the outer diameter decreases at a second point 517 below the first point 512, the locking protrusion 160 can be configured to contact the first point 512 and the second point 517 of the body edge 510. In some embodiments, the locking protrusion 160 can contact the first point 512 and the second point 517 of the body edge 510 via an inclined surface 165. In particular, when the cross-section of the body edge 510 has a shape in which the outer diameter decreases from the first point 512 toward the second point 517, the inclined surface 165 of the locking protrusion 160 can be formed in a shape corresponding to the inclination of the body edge 510.

[0049] Of course, the locking protrusion 160 does not necessarily need to have an inclined surface 165 in order to contact the first point 512 of the body edge 510 and the second point 517 located below it. The locking protrusion 160 may also have a shape that is bent into an L-shape, for example. In some embodiments, the locking protrusion 160 may be configured to extend only in the horizontal direction and only contact the second point 517, which has a reduced outer diameter below the first point 512 in the body edge 510. As mentioned above, when the body edge 510 maintains the same outer diameter over a predetermined length in the vertical direction, the locking protrusion 160 may accordingly have a shape that has the same inner diameter over a corresponding length in the vertical direction.

[0050] Figure 3 An example of a sealing cap 100 including a flap 190 and two locking protrusions 160 is shown, but the number and position of the flap 190 and locking protrusions 160 may vary. In particular, in some embodiments where the sealing cap 100 includes multiple flaps 190, the locking protrusions 160 may be omitted.

[0051] The hinge seat 170 can extend outward from the cover body 110, specifically, it can extend outward from a designated location on the outer surface formed by the cover body 110 and the cover edge 120. For example... Figure 3 As shown, in a preferred embodiment of the invention, the flap 190 may be connected to a pair of hinge seats 170, and a clearance groove 150 may be formed between the pair of hinge seats 170.

[0052] The bend 180 is the portion where the flap 190 connects to the hinge seat 170, allowing the flap 190 to rotate relative to the hinge seat 170. The bend 180 may be formed in a straight line to allow the flap 190 to rotate easily. In some embodiments, the hinge seat 170 and the flap 190 may be integrally formed from the same material, in which case the bend 180 may be formed with a thickness that allows the flap 190 to rotate while providing sufficient strength to prevent it from breaking easily.

[0053] The wing 190 is a portion that can be rotatably connected relative to the hinge seat 170 via a curved portion 180 provided on one side. A support protrusion 200 is provided on the same side of the wing 190 where the curved portion 180 is located. For example... Figure 3 As shown, when the flap 190 is raised, the sealing cap 100 can be separated from the container body 500. When the flap 190 is rotated downward, the contact portion 210 formed at the end of the support protrusion 200 is pressed against the container body 500 so that the sealing cap 100 can be attached to the container body 500.

[0054] As previously described, in some embodiments not shown, the sealing cover 100 may include a plurality of flaps 190, which may be connected to a plurality of hinge seats 170 formed at different locations. When a sufficient number of flaps 190 are provided, the sealing cover 100 may not include the locking protrusions 160.

[0055] The support protrusion 200 extends from the same side of the flap 190 as the side with the curved portion 180 toward the cover body 110. A contact portion 210 may be provided at the end of the support protrusion 200. When the user rotates the flap 190 downward, the support protrusion 200 and the contact portion 210 thereon can move through the clearance groove 150 without getting stuck on the cover edge 120.

[0056] The contact portion 210 is formed at the end of the support protrusion 200 and is configured to contact the container body 500. Specifically, when the flap 190 rotates fully downwards, a contact support surface 220 can be formed at the portion of the contact portion 210 that contacts the container body 500. For reference, the contact portion 210 can be sized to be pressed against the body edge 510 during the downward rotation of the flap 190. For example, when the flap 190 rotates to a predetermined angle relative to the hinge seat 170, the end of the contact portion 210 can contact the container body 500. When a greater force is applied to the flap 190 in this state, at least one of the contact portion 210, the support protrusion 200, and the bend 180 elastically deforms, allowing the contact portion 210 to pass through and engage with the portion where the pressing contact occurs. This structure allows the sealing cap 100 to be more securely locked to the container body 500.

[0057] The contact support surface 220 is part of the contact portion 210 and can be configured such that when the flap 190 is rotated downward relative to the hinge seat 170, the contact support surface 220 is in contact with the container body 500. As previously described, when the body edge 510 of the container body 500 has a larger outer diameter at the first point 512 and a smaller outer diameter at the second point 517, which is located below the first point 512, the contact support surface 220 can be configured to contact both the first point 512 and the second point 517 when the sealing cap 100 is attached to the container body 500.

[0058] In some embodiments, the wing 190, the support protrusion 200, the contact portion 210, and the contact support surface 220 may be integrally formed from the same material. In this case, the contact portion 210 and the contact support surface 220 may be formed with materials and dimensions for realizing the aforementioned locking process and maintaining an effective sealing state.

[0059] On the other hand, in some embodiments, at least a portion of the support protrusion 200, the contact portion 210, and the contact support surface 220 may be formed of a different material than the flap 190. For example, in one embodiment of the invention, the material used in the contact support surface 220 may have a lower modulus of elasticity than the material used in the flap 190. A material having a lower modulus of elasticity than a comparison object means that the material is more prone to elastic deformation than the comparison object. When the contact support surface 220 has a lower modulus of elasticity, it can better adhere to the surface of the container body 500. For example, when a plastic such as polypropylene (PP) is used as the material of the flap 190, a rubber material such as silicone, which has a lower modulus of elasticity, can be used in the contact support surface 220. As another example, in one embodiment of the invention, the material used in the contact portion 210 and / or the support protrusion 200 may have a lower modulus of elasticity than the material used in the flap 190. In this case, the aforementioned locking process can be performed more easily.

[0060] In some embodiments, at least a portion of the support protrusion 200, the contact portion 210, and the contact support surface 220 may be configured to be coupled to the flap 190. This allows for the use of different materials for the aforementioned components and the replacement of worn or damaged portions as needed.

[0061] The following reference Figures 4 to 7 The process of sealing a sealing container 1000 according to an embodiment of the present invention is described. Figures 4 to 6 The figures are respectively diagrams illustrating the sealing process of a sealing container 1000 according to an embodiment of the present invention. Figure 7 This is an enlarged cross-sectional view showing the contact portion 210 in a sealed container 1000 according to an embodiment of the present invention. For reference, the term "reference line" is used in this specification, and the reference line L refers to a virtual line running horizontally from the center of the cover body 110 toward the center of the contact support surface 220. Figures 4 to 6 The sectional view shown in Figure (b) is a sectional view taken along line AA shown in the plan view of Figure (a), with a portion of AA parallel to the baseline L.

[0062] First, the structure of the sealing cap 100 prevents the inner surface of the cap body 110 from contacting a surface such as a table when the sealing cap 100 is separated from the container body 500. Since the cap edge 120 extends downwards from the cap body 110, it can contact the surface such as a table first, and the cap body 110 can remain horizontal. This prevents the inner surface of the cap body 110 from being contaminated by foreign matter, and conversely, it also prevents the contents of the sealed container 1000 that might adhere to the inner surface of the cap body 110 from contaminating the surface such as a table.

[0063] Reference Figure 4When the sealed container 1000 is closed, the user can place the sealing cap 100 above the container body 500, with the body edge 510 positioned between the cap edge 120 and the inner rib 130. Here, when viewed with reference to the fin 190, the sealing cap 100 can be positioned slightly rearward from the container body 500 (in... Figure 4 In (b), the left side of the figure is in a backward state.

[0064] exist Figure 4 In the shown state, the locking protrusion 160 has not yet fully contacted the body edge 510. For reference, the position where the locking protrusion 160 is formed in the sealing cap 100 is preferably located within a range of more than 90 degrees to the left and right of the reference line L (i.e., a range of 180 degrees on the side opposite to the wing 190). Even when the locking protrusion 160 has not yet contacted the body edge 510, the sealing cap 100 can maintain a stable posture because the internal rib 130 is formed as an opening 550 slightly smaller than the container body 500.

[0065] Figure 5 This shows the state during the user's downward rotation of the winglet by 190 degrees. Even... Figure 5 In the meantime, the locking protrusion 160 may not yet be firmly attached to the body edge 510. On the other hand, when the wing 190 rotates downward, the contact portion 210 formed at the end of the support protrusion 200 comes into contact with the surface of the container body 500.

[0066] Reference Figure 5 An enlarged view of Figure (b) shows a first point 512 with a larger outer diameter at a higher position on the body edge 510 and a second point 517 with a smaller outer diameter at a lower position. The first point 512 and the second point 517 are naturally connected within the body edge 510, allowing its cross-section to be inclined or curved.

[0067] exist Figure 5 The enlarged view of Figure (b) also shows the upper part of the contact portion 210 overlapping with a portion of the body edge 510. This is shown when no elastic deformation occurs in any part of the sealing cover 100, indicating the position of the contact portion 210 together with the body edge 510. That is, when the sealing cover 100 does not undergo elastic deformation, the contact portion 210 will be locked against the body edge 510, and the flap 190 will not be able to rotate downwards continuously.

[0068] However, as previously mentioned, at least a portion of the sealing cap 100 can be formed of a material capable of elastic deformation, and when at least one of the contact portion 210, the support protrusion 200, and the bend 180 undergoes elastic deformation, the contact portion 210 can make pressing contact with the body edge 510. Specifically, when the user rotates the wing 190 downwards to a predetermined angle, the end of the contact portion 210 can contact the container body 500, for example, it can contact the container body 500. Figure 5 The second point 517 shown in (b) is in contact. In this state, when the user applies a greater force to the flap 190, the contact portion 210 is pressed against the body edge 510. Due to the pressing force, at least one of the contact portion 210, the support protrusion 200, and the bend 180 elastically deforms, and the contact portion 210 can pass over and through the part where the pressing contact occurs.

[0069] Figure 6 This shows the contact portion 210 being pressed, and the flap 190 rotating 90 degrees. As previously described, with the upper end of the contact portion 210 in contact with the surface of the body edge 510, as the user continues to press the flap 190 downwards, the contact portion 210 can move beyond the pressed contact state locked against the body edge 510. A clearance groove 150 is formed in the cover edge 120 of the sealing cover 100 at a position corresponding to the support protrusion 200 of the flap 190, so the contact support surface 220 of the contact portion 210 can pass through the clearance groove 150 and fit tightly against the body edge 510.

[0070] In particular, in this state, when the body edge 510 presses against the support surface 220, the cover body 110 can be pulled along the baseline towards the wing 190, resulting in, as Figure 6 As shown in (b), the locking protrusion 160 can abut against the body edge 510. As previously described, the locking protrusion 160 can abut against only the first point 512 of the body edge 510, or only the second point 517, or both the first point 512 and the second point 517. When the cover body 110 is pulled toward the flap 190, the seal (not shown) inserted into the seal groove 145 can align with the upper part of the body edge 510, so that the opening 550 is completely sealed.

[0071] The following reference Figure 7 The principle of how the sealing cap 100 adheres to the container body 500 according to an embodiment of the present invention will be explained in more detail. Figure 7 This is a cross-sectional view showing an enlarged view of the contact portion 210 in a sealed container according to an embodiment of the present invention.

[0072] Figure 7The diagram shows an example of contact between the contact support surface 220 of the contact portion 210 and the first point 512 and the second point 517 of the body edge 510, and four intervals A, B, C, and D are shown centered on the first point 512. The four intervals A, B, C, and D illustrate the possible positions of the curved portion 180 based on the point where the contact support surface 220 contacts the body edge 510; interval A represents the upper inner part, interval B represents the lower inner part, interval C represents the lower outer part, and interval D represents the upper outer part. Figure 7 In the sectional view, the horizontal direction is parallel to the reference line L. The reference line L is, as previously described, a line running horizontally from the center of the cover body 110 toward the center of the contact support surface 220.

[0073] exist Figure 7 In the structure shown, the body edge 510 applies an outward vertical resistance to the contact support surface 220 of the contact portion 210 at the first point 512, causing the first point 512 to function as a pressing point. The curved portion 180 is located on the lower outer side relative to the pressing point. In other words, the curved portion 180 is located on the lower side relative to the first point 512 where the outward vertical resistance is applied, and is located on the outer side along the direction of the baseline L. That is, the curved portion 180 is located in section C.

[0074] When viewed with reference to a reference line L extending horizontally from the center of the cover body 110 toward the center of the contact support surface 220, the curved portion 180 corresponds to the axis of rotation of the portion of the flap 190 that includes the contact support surface 220 and the contact portion 210 and is connected to the flap 190 relative to the hinge seat 170.

[0075] Therefore, when the curved portion 180 is located in section C, due to the contact between the contact support surface 220 and the body edge 510, the vertical resistance applied by the body edge 510 acts above the curved portion 180, which serves as the axis of rotation, and a force can be applied in the direction that causes the blade 190 to rotate downward with the curved portion 180 as the center. Figure 7 Taking the structure as an example, the vertical resistance applied to the outer side of the contact support surface 220 at the first point 512, which is the pressing point, causes the wing 190 connected by the contact portion 210 and the support protrusion 200 to rotate clockwise around the bending portion 180. Figure 7 In this case, since the clockwise rotation of the wing 190 is the action of locking the sealing cover 100, the sealing cover 100 can maintain its state of being engaged with the opening 550 of the container body 500.

[0076] exist Figure 7In the illustrated state, the body edge 510 applies vertical resistance to the contact support surface 220 outward at the first point 512, pulling the sealing cap 100 relative to the container body 500 along the reference line L. Other flaps 190 are provided outside the illustrated flap 190 position, or locking protrusions 160 are provided, which can also adhere to the body edge 510. As a result, the sealing cap 100 is fixed to the container body 500 in the horizontal direction.

[0077] On the other hand, when the body edge 510 includes a second point 517 with a smaller outer diameter at a position lower than the first point 512, the contact support surface 220 can also contact the second point 517. In this case, since the contact support surface 220 contacts the second point 517, that is, since it contacts the portion with a reduced outer diameter at the lower part of the first point 512, the sealing cover 100 can also maintain a fixed state in the vertical direction. That is, when an upward force is applied to the sealing cover 100 when it is in the locked state, the contact support surface 220 is engaged with the upper part of the second point 517, thereby preventing the sealing cover 100 from opening.

[0078] However, as mentioned above, since the locked state of the sealing cap 100 can be maintained simply by applying vertical resistance to the contact support surface 220 in the outward direction from the body edge 510 at the pressing point, the body edge 510 does not necessarily need to have a shape with a smaller outer diameter than that at the second point 517 compared to the first point 512. Even if the body edge 510 maintains the same outer diameter over a predetermined length in the vertical direction, a sealing cap 100 according to an embodiment of the present invention can still be incorporated. In this case, the frictional force between the contact support surface 220 and the body edge 510 can serve to fix the sealing cap 100 in the vertical direction.

[0079] Although not illustrated, the following description will cover cases where the bend 180 is located in other intervals. In some embodiments, the bend 180 may be located in interval B. The intervals A, B, C, and D are divided with reference to the first point 512 in a vertical plane including the reference line L. Therefore, the case where the bend 180 is located in interval B may include, for example, in a circular cover body 110, the hinge seat 170 and the bend 180 are circumferentially away from the contact portion 210 (i.e., the virtual line from the center of the cover body 110 to the bend 180 forms a large angle with respect to the reference line L). Of course, even if there are inwardly recessed portions formed on the cover body 110 and the body edge 510, and the bend 180 is formed in such recessed portions, the bend 180 may still be located in interval B.

[0080] Even when the bend 180 is located in section B, due to the contact between the contact support surface 220 and the body edge 510, the vertical resistance applied by the body edge 510 acts above the bend 180, which serves as the axis of rotation, and can exert force in the direction of downward rotation of the flap 190 centered on the bend 180. The vertical resistance applied at the first point 512 in the direction outward of the contact support surface 220 causes the flap 190, connected by the contact portion 210 and the support protrusion 200, to rotate downward centered on the bend 180, thereby maintaining the state in which the sealing cap 100 is attached to the opening 550 of the container body 500.

[0081] Although not illustrated, the body edge 510 applies vertical resistance toward the outer and lower sides to the contact support surface 220 of the contact portion 210 at the second point 517, causing the second point 517 to function as a pressing point, and the curved portion 180 is located inside the pressing point along the direction of the reference line L. This corresponds to the case where the curved portion 180 is located in section A or section B with the second point 517 as a reference.

[0082] When the curved portion 180 is located in section B with reference to the second point 517, the outer component of the vertical resistance applied to the contact support surface 220 at the second point 517, which is the pressing point, is applied in a downward rotating manner to the wing 190, thereby maintaining the sealed cover 100 in the engaged state.

[0083] On the other hand, when the curved portion 180 is located in section A with the second point 517 as a reference, the lower component of the vertical resistance applied to the contact support surface 220 at the second point 517, which serves as the pressing point, can be applied in the direction of pulling the cover body 110 outward and downward. With the body edge 510 between the contact support surface 220 and the cover body 110, the vertical resistance at the pressing point pulls the contact portion 210 and the cover body 110 towards each other, thus the sealing cover 100 can be maintained in a fixed state in both the horizontal and vertical directions.

[0084] Of course, when the curved portion 180 is located in section A or section B with reference to the first point 512 or the second point 517, the vertical resistance at the pressing point can be partially applied in the direction of the upward rotation of the wing 190. Therefore, when the curved portion 180 is located in section A or section B, the size, shape, and position of the hinge seat 170, wing 190, support protrusion 200, contact portion 210, and contact support surface 220 can be designed such that the vertical resistance component applied in the manner of the closed sealing cover 100 is greater than the vertical resistance component applied in the manner of the open sealing cover 100.

[0085] The sealing cap 100 and the sealing container 1000 having the same according to an embodiment of the present invention can seal the container body 500 even when no protrusion is formed in the container body 500, which provides a wide range of advantages.

[0086] First, the absence of a protrusion in the container body 500 means that the sealing cap 100 can be integrated into a wide variety of existing container bodies 500, thus greatly increasing the usability of the sealing cap 100. Furthermore, since there is no protrusion in the container body 500, it is easier to carry and store, and easier to clean, thus making it easier to maintain a high level of cleanliness. Even when the sealing cap 100 is opened, there is no possibility of the sealing cap 100 colliding with or getting stuck on a protrusion of the container body 500, making it easier to open the sealed container 1000.

[0087] In terms of manufacturing, there is no need to form protrusions on the container body 500. Therefore, the container body 500 can be manufactured into a simpler shape, and there are no parts requiring precision dimensional machining, such as protrusions and locking parts, thus greatly increasing the permissible tolerance range. The sealing cap 100 of one embodiment of the present invention can also be manufactured by a simpler injection molding process.

[0088] Although the invention has been described above with reference to one embodiment, those skilled in the art will understand that the invention can be modified and altered in various ways without departing from the spirit and scope of the invention as set forth in the following claims.

Claims

1. A sealed container comprising a container body having an opening and a sealing cap detachably attachable to the opening of the container body, characterized in that, The sealing cap includes: A cover body, configured to cover the opening; A hinge seat that extends outward from the cover body; A winglet, which is rotatably connected relative to the hinge seat via a curved portion on one side; and A support protrusion extends from one side of the wing toward the cover body and has a contact portion at its end configured to contact the container body. When the flap rotates downward relative to the hinge seat, the contact support surface of the contact portion comes into contact with the container body, so that the sealing cap engages with the container body. When a virtual line extending horizontally from the center of the cover body towards the center of the contact support surface is defined as a baseline, and the point where the container body applies vertical resistance outward to the contact support surface is defined as a pressing point, in the state where the sealing cover is attached to the container body, the curved portion is located on the lower side relative to the pressing point, and on the outer side relative to the pressing point along the direction of the baseline.

2. A sealed container comprising a container body having an opening and a sealing cap detachably attachable to the opening of the container body, characterized in that, The sealing cap includes: The cover body is configured to cover the opening; A hinge seat that extends outward from the cover body; A winglet, which is rotatably connected relative to the hinge seat via a curved portion on one side; and A support protrusion extends from one side of the wing toward the cover body and has a contact portion at its end configured to contact the container body. When the flap is rotated downward relative to the hinge seat, the contact support surface of the contact portion comes into contact with the container body, so that the sealing cap engages with the container body. When a virtual line extending horizontally from the center of the cover body towards the center of the contact support surface is defined as a baseline, and the point where the container body applies vertical resistance to the contact support surface towards the outside and the bottom is defined as a pressing point, in the state where the sealing cover is attached to the container body, the curved portion is located inside the direction of the baseline relative to the pressing point.

3. The sealed container according to claim 1 or 2, characterized in that, The container body includes a body edge, which is formed such that the outer diameter at a first point is greater than the outer diameter at a second point lower than the first point. With the sealed cap attached to the container body, the contact support surface contacts the first point and the second point.

4. The sealed container according to claim 3, characterized in that, When the blade rotates downward relative to the hinge seat to a predetermined angle, the end of the contact portion contacts the container body. When a greater force is applied to the blade, at least one of the contact portion, the support protrusion, and the bend elastically deforms to allow the contact portion to pass through.

5. The sealed container according to claim 3, characterized in that, The container body is manufactured by blow molding, and includes a portion below the edge of the body having an outer diameter larger than that of the first point.

6. The sealed container according to claim 1 or 2, characterized in that, The sealing cap also includes a cap rim extending downward from the edge of the cap body. The hinge seat extends outward from a designated position on the outer surface formed by the cover body and the cover edge.

7. The sealed container according to claim 6, characterized in that, The wing is connected to a pair of hinge seats via a pair of curved portions. The support protrusion extends between the pair of curved portions in a direction toward the cover body. A clearance groove is formed in the cover edge at a position corresponding to the space between the pair of hinge seats. When the wing rotates, the support protrusion passes through the clearance groove.

8. The sealed container according to claim 6, characterized in that, The sealing cap also includes a locking protrusion that extends inward from the lower part of the cap edge.

9. The sealed container according to claim 8, characterized in that, The container body includes a body edge, which is formed such that the outer diameter at a first point is greater than the outer diameter at a second point lower than the first point. The locking protrusion includes an inclined surface that contacts the first and second points when the sealing cap is engaged with the container body.

10. The sealed container according to claim 1 or 2, characterized in that, The cross-section of the container body is one of a circle, a polygon, or a combination of a circle and a polygon.

11. The sealed container according to claim 1 or 2, characterized in that, The sealing cover includes multiple flaps.

12. The sealed container according to claim 1 or 2, characterized in that, At least a portion of the contact support surface, the contact portion, and the support protrusion can be interchangeably attached to the winglet.

13. The sealed container according to claim 12, characterized in that, At least a portion of the contact support surface, the contact portion, and the support protrusion has a lower elastic coefficient than the winglet.

14. A closure capable of being detachably coupled to an opening of a container body, characterized by, include: The cover body is configured to cover the opening; A hinge seat that extends outward from the cover body; A winglet, which is rotatably connected relative to the hinge seat via a curved portion on one side; and A support protrusion extends from one side of the wing toward the cover body and has a contact portion at its end configured to contact the container body. When the flap rotates downward relative to the hinge seat, the contact support surface of the contact portion comes into contact with the container body, so that the sealing cap engages with the container body. When a virtual line extending horizontally from the center of the cover body towards the center of the contact support surface is defined as a baseline, and the point where the container body applies vertical resistance outward to the contact support surface is defined as a pressing point, in the state where the sealing cover is attached to the container body, the curved portion is located on the lower side relative to the pressing point, and on the outer side relative to the pressing point along the direction of the baseline.

15. A sealing cap that can be detachably attached to the opening of a container body, characterized in that, The cover body is configured to cover the opening; A hinge seat that extends outward from the cover body; A winglet, which is rotatably connected relative to the hinge seat via a curved portion on one side; and A support protrusion extends from one side of the wing toward the cover body and has a contact portion at its end configured to contact the container body. When the flap is rotated downward relative to the hinge seat, the contact support surface of the contact portion comes into contact with the container body, so that the sealing cap engages with the container body. When a virtual line extending horizontally from the center of the cover body towards the center of the contact support surface is defined as a baseline, and the point where the container body applies vertical resistance to the contact support surface towards the outside and the bottom is defined as a pressing point, in the state where the sealing cover is attached to the container body, the curved portion is located inside the direction of the baseline relative to the pressing point.

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