Container lid and container assembly incorporating the same

Abstract

The present invention relates to a container lid and a container assembly incorporating the same. More specifically, it relates to a container lid coupled to the inlet of a container for storing contents and a container assembly incorporating the same. The present invention discloses a container assembly, comprising: a container (10) for storing contents; a container lid (20) coupled to the container inlet (12); and a sealing member (30) having a bottom surface attached to the upper end of the container inlet (12) of the container (10) and coupled to the container lid (20); wherein when the container lid (20) is separated from the container (10) by rotation, the bonding force between the sealing member (30) and the container lid (20) is greater than the bonding force between the container inlet (12) and the sealing member (30) so that the sealing member (30) is separated from the container inlet (12).

Description

Technical Field

[0001] The present invention relates to a container lid and a container assembly incorporating the container lid. More specifically, the present invention relates to a container lid coupled to an inlet of a container storing contents and a container assembly incorporating the container lid. Background Art

[0002] Figure 1 It is a cross-sectional view of a conventional container.

[0003] Generally, in a drinking container such as a lactic acid bacteria drink, in order to be installed at the container inlet 102 to prevent the contents stored in the container 104 from leaking to the outside without reason, a sealing member 114 is attached to the container inlet 102 to seal the contents stored in the container 104, and a container lid 100 is put on to prevent the sealing member 114 from being damaged without reason due to external impact or contact between objects.

[0004] The container lid 100 has a cylindrical shape with a closed upper side, and a catch 110 is formed on the inner circumferential surface to catch a catch rib 108 formed on the outer circumferential surface of the container inlet 102, and a handle 112 is formed so that it can be pulled by hand when separating the container lid 100 from the container inlet 102.

[0005] As described above, for the container lid 100, the handle 112 is grasped and pulled to separate the container lid 100 from the container inlet 102, and then the sealing member 114 is removed from the container inlet 102, and the contents stored in the container are discharged to the outside through the container inlet 102.

[0006] However, for the container lid of the prior art as described above, after separating the container lid from the container, the sealing member attached to the container inlet for sealing is removed by tearing it off with the hand or requires a separate tool such as a cutter, so there is a problem of inconvenient use.

[0007] In particular, when removing the sealing member by hand, the adhesion between the sealing member and the border part of the container inlet is strong, and the sealing member cannot be smoothly separated from the border, so there is a trouble of having to tear it off again with the hand. At this time, the hand touches the container inlet, so a hygiene problem may also be caused. Summary of the Invention

[0008] Problems to be Solved

[0009] Accordingly, the present invention is proposed to solve the above problems of the prior art. An object of the present invention is to provide a container lid and a container assembly incorporating the container lid, in which when separating the container lid from the container, the sealing member sealing the container inlet is separated together, and thus there is no need to separately remove the sealing member, so it is convenient to use.

[0010] Means for Solving the Problems

[0011] The present invention is proposed to achieve the object of the present invention as described above. The present invention discloses a container assembly, including: a container 10 for storing contents; a container lid 20 coupled to the container inlet 12; a sealing member 30 having a bottom surface attached to the upper end of the container inlet 12 of the container 10 and coupled to the container lid 20; wherein, when the container lid 20 is separated from the container 10 by rotation, in order to separate the sealing member 30 from the container inlet 12, the bonding force between the sealing member 30 and the container lid 20 is greater than the bonding force between the container inlet 12 and the sealing member 30.

[0012] The upper surface of the sealing member 30 can be adhered to the container lid 20.

[0013] The container lid 20 may include: a lid body 210 coupled to the container inlet 12; a sealing member separating portion 220 provided on the lid body 210 to separate the sealing member 30 from the lid body 210.

[0014] The lid body 210 may include a coupling portion 230, and the coupling portion 230 is for attaching to the upper surface of the edge 31 of the sealing member 30 corresponding to the portion that is coupled to the upper surface 12a of the container inlet 12.

[0015] The coupling portion 230 may be formed as a plane to closely adhere to the upper surface of the sealing member 30.

[0016] The coupling portion 230 and the upper end of the container inlet 12 may be such that, in order to insert and closely adhere one of them, a groove is formed in any one of them, and a part of the remaining one is inserted into the groove.

[0017] The coupling portion 230 may form the groove S2 to insert the upper end of the container inlet 12.

[0018] The sealing member separating portion 220 may include: a pressing portion 221 that moves downward to press the sealing member 30 to separate the sealing member 30 from the lid body 210; a connecting portion 222 that connects the lid body 210 and the pressing portion 221 to move the pressing portion 221 downward by elastic deformation.

[0019] One or more pressing portions 223 may be disposed on the bottom surface of the pressing portion 221 to press the sealing member 30.

[0020] The connecting portion 222 may be integrally formed with the pressing portion 221 and the lid body 210.

[0021] The connecting portion 222 may be formed to vertically separate the lid body 210 together with the pressing portion 221.

[0022] The connecting portion 222 may be formed of a plurality of strips that are elastically deformable between the inner circumference of the lid body 210 and the pressing portion 221.

[0023] The seal member separating portion 220 may be integrally formed with the lid body 210 to seal the container 10 when the lid body 210 is coupled to the container inlet 12.

[0024] The present invention also discloses a container lid for use with a container assembly having the structure described above, wherein the container assembly includes: a container 10 for storing contents; a container lid 20 coupled to the container inlet 12; and a seal member 30 having a bottom surface attached to the upper end of the container inlet 12 of the container 10 and coupled to the container lid 20.

[0025] Effects of the Invention

[0026] 1. Environmental protection and reuse

[0027] In the container lid and the container assembly incorporating the same according to the present invention, when the container lid 20 is opened from the container inlet 12, the seal member 30 that is closing (covering) the upper surface 12a of the container inlet 12 is automatically separated together with the container lid 20. Therefore, there is no need to dispose of the container 10 as waste, and thus the container 10 can be reused (environmental protection). In addition, the seal member 30 separated from the container inlet 12 and the container lid 20 can be stored / separated, so that both the container lid 20 and the container 10 can be reused.

[0028] In addition, in the container lid and the container assembly incorporating the same according to the present invention, when the container lid 20 is separated from the container 10, the seal member 30 is removed from the container inlet 12, and there is no remaining portion of the seal member 30. Therefore, it has the advantage of being able to flexibly perform reuse.

[0029] Furthermore, the seal member 30 made of different materials can also be completely separated from the container lid 20 without residue. Therefore, it also has the advantage of being able to flexibly perform reuse of the container lid 20.

[0030] 2. Safe storage of contents

[0031] According to an embodiment of the seal member, if it is re-coupled after opening the container lid 20, the lower layer of the seal member 30 is re-joined to the upper surface 12a of the container inlet 12 to have a sealing function, so that the contents can be safely stored.

[0032] 3. Can directly use existing production lines

[0033] It can be processed with the same external dimensions (width, height) as existing container lids and existing containers, without the need to invest additional costs to change the existing production line. Therefore, it can be quickly spread in related industries around the world. Brief Description of the Drawings

[0034] Figure 1 is a cross-sectional view of a prior art container lid.

[0035] Figure 2 is a perspective view of a container assembly showing a first embodiment of the present invention.

[0036] Figure 3 is Figure 2 a cross-sectional view taken along the III-III direction in

[0037] Figure 4a is a cutaway perspective view of a part of the container assembly in Figure 3 which is cut.

[0038] Figure 4b is showing Figure 3 a partial cross-sectional view of a part of a longitudinal cross-sectional view; Figure 4c is showing in Figure 4b a partial cross-sectional view of the process of removing the sealing member after separating the container lid in

[0039] Figure 5a is a cutaway perspective view of the state where the container lid is attached to the container in the state where the sealing member is removed.

[0040] Figure 5b As Figure 5a another aspect of

[0041] Figure 6a is Figure 2 a plan view of the container lid of Figure 6b is a bottom view; Figure 6c is showing Figure 6b a bottom view of a modified example of Figure 6d is Figure 2 a perspective view of the container lid of

[0042] Figure 7 is showing Figure 3 a partial cross-sectional view of a modified example of the container assembly of

[0043] Figure 8 is showing in Figure 7 a partial cross-sectional view of the state where the container lid with the sealing member removed is attached to the container in the container assembly of

[0044] Figure 9 is Figure 7 a partial cross-sectional view enlarging part A in

[0045] Figures 10a to 10f is showing Figure 9 a partial cross-sectional view of a modified example of the example shown in

[0046] Figure 11a is a partial cross-sectional view showing a modified example of the container component shown; Figure 3 a partial cross-sectional view showing a modified example of the container component shown; Figure 11b is a partial cross-sectional view showing the state in which a container lid without a sealing member is attached to a container in the Figure 11a container component of.

[0047] Figure 12a is a plan view showing a modified example of the container component shown; Figure 3 a plan view showing a modified example of the container component shown; Figure 12b is a Figure 12a partial cross-sectional view taken in the direction VI-VI in.

[0048] Figure 13 is a partial cross-sectional view showing a modified example of the container component shown in Figure 3 a partial cross-sectional view showing a modified example of the container component shown;

[0049] Figure 14a is a partial cross-sectional view in which part B in Figure 13 is enlarged; Figure 14b is a partial cross-sectional view showing the state in which a container lid without a sealing member is attached to a container in the Figure 14a container component of.

[0050] Figure 15 is a partial cross-sectional view showing a modified example of the container component shown in Figure 13 a partial cross-sectional view showing a modified example of the container component shown;

[0051] Figure 16 shows a partial cross-sectional view of an example of a sealing member provided in the container component shown in Figure 3 a partial cross-sectional view of an example of a sealing member provided in the container component shown;

[0052] Figures 17a to 17c is a partial cross-sectional view showing a modified example of the sealing member shown in Figure 16 a partial cross-sectional view showing a modified example of the sealing member shown;

[0053] Figure 18 a to Figure 18 d are plan views showing modified examples of the shape of the pressing portion of the container lid shown in Figure 2 a plan view showing modified examples of the shape of the pressing portion of the container lid shown;

[0054] Figure 19 is a partial cross-sectional view showing a modified example of the container component shown in Figure 3 a partial cross-sectional view showing a modified example of the container component shown;

[0055] Figure 20 is a partial cross-sectional view showing the state in which a container lid without a sealing member is attached to a container in the Figure 19 container component of.

[0056] Figure 21 is a partial cross-sectional view in which part C in Figure 19 is enlarged;

[0057] Figure 22 is a sectional view showing a modified example of a container component Figure 19 of the present invention. DETAILED DESCRIPTION

[0058] Hereinafter, the container lid of the present invention and the container incorporating the container lid will be described with reference to the accompanying drawings.

[0059] As Figures 2 to 22 shown, the container component of the present invention includes: a container 10 for storing contents; a container lid 20 coupled to the container inlet 12; and a sealing member 30 having a bottom surface attached to the upper end of the container inlet 12 of the container 10 and coupled to the container lid 20 to close the container 10.

[0060] The container 10 is a structure for storing contents such as powdery substances and liquid substances such as beverages, alcoholic beverages, engine oil, antifreeze, edible oil, dairy products, etc., and may be any structure as long as it forms a container inlet 12 for discharging the container.

[0061] The contents stored in the container 10 can use various substances according to the combination of the contents and the auxiliary contents, such as liquid substances taken together with the auxiliary contents and solid pills described later, and can be composed of ordinary liquid substances.

[0062] In addition, portions of the container 10 other than the container inlet 12 may have various shapes such as a cylindrical shape and a quadrangular prism shape.

[0063] Then, the container 10 may include plastic, ceramic materials such as ceramics, glass materials, metal materials, and various other materials. Here, considering manufacturing and disconnection separation, etc., the container lid is preferably made of plastic.

[0064] On the other hand, the container inlet 12 is a discharge port for discharging the contents to the outside, and is a part that is opened and closed by the container lid 100. Depending on the structure combined with the container lid 20, it may have various structures.

[0065] The container lid 20 is a structure for sealing the container 10 by being coupled to the container inlet 12 of the container 10, and may be various structures.

[0066] In particular, depending on the combined structure with the sealing member 30 and the container inlet 12, the container lid 20 may be various structures.

[0067] Then, the material of the container lid 20 is plastic, and may be any material as long as it is an injectable material such as HDPE, PP, PET, PVC, PS, etc.

[0068] The sealing member 30 is attached to the upper end of the container inlet 12 of the container 10 as a bottom surface and is combined with the container lid 20 to close the container 10. According to the combination structure of the container lid 20, it can be of various structures.

[0069] In particular, the sealing member 30 is characterized in that when the container lid 20 is separated from the container 10 by rotation, in order to separate the sealing member 30 from the container inlet 12, the bonding force between the sealing member 30 and the container lid 20 is greater than the bonding force between the container inlet 12 and the sealing member 30.

[0070] As an example, as Figure 16 shown, the sealing member 30 may include: a metal sheet layer 311, a first resin layer 313, and a second resin layer 315. The first resin layer 313 and the second resin layer 315 are combined with the upper and bottom surfaces of the metal sheet layer 311.

[0071] The metal sheet layer 311 can be attached to the metal layer on the upper surface 12a of the container inlet 12 through the rigidity, induction, and conduction methods of the sealing member 30. Except for aluminum and aluminum alloy materials, any metal material used in commercial sealing members can be used.

[0072] The thickness of the metal sheet layer 311 can be 6 μm to 200 μm.

[0073] The first resin layer 313 and the second resin layer 315, as resin layers combined with the upper and bottom surfaces of the metal sheet layer 311, can be particularly made of PET.

[0074] The thickness of the first resin layer 313 and the second resin layer 315 can be 10 μm to 150 μm.

[0075] At this time, as Figures 17a to 17c shown, the first resin layer 313 and the second resin layer 315 are respectively pasted on the upper and bottom surfaces of the metal sheet layer 311 through an adhesive layer 312 on the surface of the aluminum sheet.

[0076] Here, the adhesive layer 312, as a material for pasting a resin layer such as PET on the surface of the aluminum sheet, can use the adhesives of commercial sealing members described later.

[0077] The sealing member 30 having the above structure, when the container lid 20 is combined with the container inlet 12, achieves sufficient adhesion through the bonding force, and can seal the container 10 through this adhesion. Moreover, it is easily separated when the container lid 20 is separated from the container inlet 12, and thus has the characteristics of being easily sealed and separated from the container 10.

[0078] For reference, the sealing member 30 is in a state where the end of the edge portion 31 is inserted into the container lid 20. Therefore, when the container lid 20 is separated, it can be separated from the container inlet 12 while being fixed to the container lid 20.

[0079] In particular, a part of the edge portion 31 on the bottom surface of the sealing member 30 also adheres to the upper surface of the support portion 233. Furthermore, the bonding force of the sealing member 30 to the container lid 20 can be greater than the bonding force to the upper surface 12a of the container inlet 12.

[0080] On the other hand, in addition to the above embodiments, in order to be pasted on the upper surface 12a of the container inlet 12 and on the container lid 20, the sealing member 30 can implement various embodiments according to the materials of the container 10 and the container lid 20.

[0081] In particular, the sealing member 30 can form a functional layer that imparts an easy-peeling function to at least one of the upper surface and the bottom surface.

[0082] As an example, as a structure for the container assembly applicable to the present invention, the sealing member 30 can form a CPP layer 317 on the bottom surface of the second resin layer 315.

[0083] The CPP layer 316 is a layer having thermo-viscosity for imparting an easy-peeling function together with the adhesive layer 317 and has a material of Casting poly propylene.

[0084] The thickness of the CPP layer 316 can be 10 μm to 30 μm.

[0085] The sealing member 30 can form an adhesive layer 317 for pasting on the upper surface 12a of the container inlet 12 on the bottom surface of the CPP layer 316 to improve the adhesiveness to the container inlet 12.

[0086] The adhesive layer 317, as a layer for pasting on the upper surface 12a of the container inlet 12, can be composed of a material having an easy-peeling property commonly used for pasting between resins.

[0087] The thickness of the adhesive layer 317 can be 10 μm to 500 μm.

[0088] On the other hand, the bonding force of the sealing member 30 of the present invention to the container lid 20 should be lower than the bonding force to the container inlet 12. Therefore, it is preferably provided with an easy-peeling function and adhesive performance.

[0089] To this end, the sealing member 30 of the present invention is such that an easily peelable layer made of Acryl, Urethane, polyethylene (LDPE, LLDPE, MDPE, HDPE), metallocene polyethylene, polypropylene, SBR (styrene-butadiene rubber), EVA, EAA, EEA, EMAA, EMA, IONOMER, Surlyn resin, polyester fiber, copolymer, easy peel resin, etc. can be formed on the surface in contact with the upper surface 12a of the container inlet 12, as an easily peelable layer for imparting an easily peelable function.

[0090] As another example, the sealing member 30 may be composed of 7 layers. Starting from the top, they are an easily peelable coating layer (1 - 100 μm) 322, 2) a PET layer (12 - 350 μm) 313 of a polyester film, 3) a polyurethane adhesive layer (1 - 12 μm) 312, 4) a hard aluminum foil layer (1 - 100 μm) 311, 5) a polyurethane adhesive layer (1 - 12 μm) 312, 6) a PET layer (12 - 350 μm) 315 of a polyester film, 7) an easily peelable coating layer (1 - 100 μm) 321.

[0091] As another example, as Figure 17a shown, a polyurethane adhesive layer 312 of 1 - 12 μm is further formed between the PET layer (12 - 350 μm) 315 of the polyester film and the easily peelable coating layer (1 - 100 μm) 321 of the sealing member 30, and a total of 8 layers can be formed.

[0092] As the easily peelable film as described above, a copolyester film or an easily peelable multi-layer coextruded film can also be used.

[0093] As another example, as Figure 17b shown, the sealing member 30 may be composed of 9 layers. Starting from the top, they are an easily peelable film (1 - 100 μm) 322 / adhesive (1 - 20 μm) 312 / PET film (12 - 350 μm) 313 / adhesive (1 - 20 μm) 312 / aluminum foil (1 - 100 μm) 311 / adhesive (1 - 20 μm) 312 / PET film (12 - 350 μm) 315 / adhesive (1 - 20 μm) 312 / easily peelable film (1 - 100 μm) 321.

[0094] As the easily peelable film as described above, a copolyester film or an easily peelable multi-layer coextruded film can also be used.

[0095] As another example, as Figure 17cAs shown, the sealing member 30 may be composed of 11 layers. Starting from the top, they are a peelable coating (1 - 100 μm) 323 / a multilayer coextruded film (10 - 100 μm) 322 / an adhesive (1 - 20 μm) 312 / a PET film (12 - 250 μm) 313 / an adhesive (1 - 20 μm) 312 / an aluminum foil (1 - 100 μm) 311 / an adhesive (1 - 20 μm) 312 / a PET film (12 - 250 μm) 315 / an adhesive (1 - 20 μm) 312 / a multilayer coextruded film (10 - 100 μm) 317 / a peelable coating (1 - 100 μm) 321.

[0096] Additional embodiments of the sealing member structure for the container lid and the container material

[0097] a) A container lid made of PE (polyethylene) material and a container made of PP (polypropylene) material

[0098] Starting from the bottom surface: 1) a PP layer of 0.5 μm - 150 μm, 2) an adhesive layer of 0.5 μm - 10 μm, 3) a PET layer of 10 μm - 150 μm, 4) an adhesive layer of 0.5 μm - 10 μm, 5) a metal sheet (aluminum) layer of 6 μm - 200 μm, 6) an adhesive layer of 0.5 μm - 10 μm, 7) a PET layer of 10 μm - 150 μm, 8) an adhesive layer of 0.5 μm - 10 μm, 9) a PP layer of 0.5 μm - 150 μm.

[0099] The top and bottom PP layers 9, 1 are laminated into a film shape or form a functional (adhesive, bonding, cohesive) layer by coating a liquid.

[0100] The lower surface of the joint 230 between the top PP layer 9, 1 and the container lid 20 made of PE material is adhesively pasted, and the bottom PP layer 1 is pasted to the upper surface 12a of the container inlet 12 made of PP material with a peelable function.

[0101] b) A container lid made of PP material and a container made of PP material

[0102] Starting from the bottom surface: 1) a PP layer of 0.5 μm - 150 μm, 2) an adhesive layer of 0.5 μm - 10 μm, 3) a PET layer of 10 μm - 150 μm, 4) an adhesive layer of 0.5 μm - 10 μm, 5) a metal sheet (aluminum) layer of 6 μm - 200 μm, 6) an adhesive layer of 0.5 μm - 10 μm, 7) a PET layer of 10 μm - 150 μm, 8) an adhesive layer of 0.5 μm - 10 μm, 9) a PP layer of 0.5 μm - 150 μm.

[0103] The top and bottom PP layers 9, 1 are laminated into a film shape or form a functional (adhesive, bonding, cohesive) layer by coating a liquid.

[0104] The lower surface of the joint 230 between the uppermost PP layer 9 and the container lid 20 made of PP material is adhesively pasted, and the upper surface 12a of the container inlet 12 made of PP material and the lowermost PP layer 1 are pasted with a peelable function.

[0105] c) Container lid made of PE material and container made of PET (polyester fiber) material

[0106] Starting from the bottom surface: 1-1) A peelable adhesive layer of 0.5 μm to 100 μm, 1-2) A PET layer of 12 μm to 500 μm, 2) An adhesive layer of 0.5 μm to 10 μm, 3) A PET layer of 10 μm to 150 μm, 4) An adhesive layer of 0.5 μm to 10 μm, 5) A metal sheet (aluminum) layer of 6 μm to 200 μm, 6) An adhesive layer of 0.5 μm to 10 μm, 7) A PET layer of 10 μm to 150 μm, 8) An adhesive layer of 0.5 μm to 10 μm, 9) A PP layer of 0.5 μm to 150 μm.

[0107] The uppermost PP layer 9 has the function of adhesively pasting to the lower surface of the joint 230 of the container lid 20 described later, and the peelable adhesive layer is pasted to the upper surface 12a of the container inlet 12 made of PET material with a peelable function.

[0108] d) Container lid made of PE material and container made of PET material

[0109] Starting from the bottom surface: 1) A copolyester film layer of 12 μm to 500 μm, 2) An adhesive layer of 0.5 μm to 10 μm, 3) A PET layer of 10 μm to 150 μm, 4) An adhesive layer of 0.5 μm to 10 μm, 5) A metal sheet (aluminum) layer of 6 μm to 200 μm, 6) An adhesive layer of 0.5 μm to 10 μm, 7) A PET layer of 10 μm to 150 μm, 8) An adhesive layer of 0.5 μm to 10 μm, 9) A PP layer of 0.5 μm to 150 μm.

[0110] The uppermost PP layer 9 has the function of adhesively pasting to the lower surface of the joint 230 of the container lid 20 described later, and the copolyester film layer is pasted to the upper surface 12a of the container inlet 12 made of PET material with a peelable function. The copolyester film layer 46 is a polyester film with a heat-pasting function itself.

[0111] e) Container lid made of PE material and container made of PS (polystyrene) material

[0112] Starting from the bottom surface: 1) A peelable film layer of 12 μm to 150 μm, 2) An adhesive layer of 0.5 μm to 10 μm, 3) A PET layer of 10 μm to 150 μm, 4) An adhesive layer of 0.5 μm to 10 μm, 5) A metal sheet (aluminum) layer of 6 μm to 200 μm, 6) An adhesive layer of 0.5 μm to 10 μm, 7) A PET layer of 10 μm to 150 μm, 8) An adhesive layer of 0.5 μm to 10 μm, 9) A PP layer of 0.5 μm to 150 μm.

[0113] The uppermost PP layer 9 has the function of adhesively pasting to the lower surface of the joint portion 230 of the container lid 20 described later, and the copolyester film layer is pasted to the upper surface 12a of the container inlet 12 of the PS material with a peelable function.

[0114] f) Container lid made of PE material and container made of PE material

[0115] Starting from the bottom surface: 1) A peelable layer of 12 μm to 150 μm, 2) An adhesive layer of 0.5 μm to 10 μm, 3) A PET layer of 10 μm to 150 μm, 4) An adhesive layer of 0.5 μm to 10 μm, 5) A metal sheet (aluminum) layer of 6 μm to 200 μm, 6) An adhesive layer of 0.5 μm to 10 μm, 7) A PET layer of 10 μm to 150 μm, 8) An adhesive layer of 0.5 μm to 10 μm, 9) A PP layer of 0.5 μm to 150 μm.

[0116] The uppermost PP layer 9 has the function of adhesively pasting to the lower surface of the joint portion 230 of the container lid 20 made of PE material described later, and the lowermost peelable layer is pasted to the upper surface 12a of the container inlet 12 of the PE material with a peelable function.

[0117] Hereinafter, each layer of the sealing member 30 will be described.

[0118] Peelable function layer

[0119] There are two methods for forming a layer with the peelable function: liquid coating and melt extrusion coating.

[0120] The liquid coating method is to combine resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, Olefin, EAA, EMA, EMAAEEA, rubber, etc. to manufacture an aqueous or fluidized liquid material, and use a gravure printing M / C (equipment), micro gravure M / C, dry cold stamping M / C to coat it on the surface of the film and sheet.

[0121] The melt extrusion coating method uses extrusion compounding M / C to extrude a predetermined thickness on films and sheets. Resin chips combining resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, Olefin, EAA, EMA, EMAA, EEA, and rubber are melted at a high temperature in the range of 150 - 350 °C by an extruder and then extruded through a T-die while adjusting the thickness.

[0122] Adhesive layer

[0123] The adhesive layer uses a two-component polyurethane with excellent heat resistance, cold resistance, and water resistance, and realizes pasting by laminating a film or sheet with an adhesive using dry cold stamping M / C and then curing. The adhesive can be composed of a main body (polyester, polyether), a curing agent (isocyanate), and a solvent (MEK, EA).

[0124] PET film layer

[0125] As a biaxially oriented polyester film, it has excellent heat resistance and cold resistance, and corona discharge treatment is performed on both sides, with the surface tension maintained in the range of 36 - 60 dyne / cm.

[0126] Aluminum foil layer (metal sheet layer)

[0127] Hard aluminum or soft aluminum is used, and a foil with a surface tension of 60 dyne / cm or more on both sides can be used. Materials such as A1235 and A1100 of the A1000 series with an aluminum purity of 99% or more can be used.

[0128] Easily peelable multilayer coextruded film layer

[0129] As a multilayer coextruded film, it is a film that imparts an easily peelable function to the heat-bonding layer. Resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, Olefin, EAA, EMA, EMAA, EEA, and rubber are combined to produce multilayer films. The films can be produced in various shapes according to the shape of the extruder, from single-layer films to 12-layer films.

[0130] Multilayer coextruded film layer

[0131] As a multilayer coextruded film, it is the shape most commonly used for general heat-pasting applications. Resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, Olefin, EAA, EMA, EMAA, EEA, and rubber are combined to produce multilayer films. It has no easily peelable function and is mainly used for heat-pasting. The films can be produced in various shapes according to the shape of the extruder, from single-layer films to 12-layer films.

[0132] The sealing member 30 as described above is adhered to the lower surface of the joint portion 230 of the container lid 20 by applying high frequency (i.e., induction method) and using the heat generated in the metal sheet layer, and the bottom surface is adhered to the upper surface 12a of the container inlet 12.

[0133] At this time, the physical properties of the upper surface and the bottom surface of the sealing member 30 may be different from each other, and accordingly, the sealing member 30 may have an identifier for distinguishing the bottom surface and the upper surface, such as an identifier in the form of a color, a symbol, a character, etc.

[0134] In addition, as Figure 4c shown, the sealing member 30 having the structure as described above can be removed from the container lid 20 after the container lid 20 is separated from the container inlet 12, or can be used entirely in a state of being located inside the container lid 20. For reference, in Figure 4c , for convenience, the state where the skirt portion 450 is not separated is shown, but in actual use, it is judged as the bridge 452, and the skirt portion 450 remains at the container inlet 12.

[0135] In particular, when the sealing member 30 having the composition proposed in the above a) to e) is used in a state of being located inside the container lid 20, it has the advantage of ensuring a certain degree of adhesion to the container inlet 12, and further having a sealing effect of the container 10 that can be maintained to a certain degree.

[0136] On the other hand, for the sealing member 30, considering the upper surface 12a of the container inlet 12 and the bottom surface of the joint portion 230 of the container lid 20, it is preferable that the rigidity of the edge 31 is greater than the rigidity of the remaining inner portion 32.

[0137] To this end, the sealing member 30 forms the thickness of the edge portion 31, especially the thickness of the metal sheet layer 311, to be thicker or harder, and thereby can strengthen the rigidity of the sealing member 30.

[0138] In addition, for the sealing member 30, in order to strengthen the rigidity, ribs or the like can be formed without affecting the adhesion and sealing of the upper surface 12a of the container inlet 12 and the bottom surface of the joint portion 230 of the container lid 20, and the rigidity can be strengthened.

[0139] Hereinafter, regarding the present invention, the features of each embodiment will be described with reference to the accompanying drawings. For convenience, the same or similar parts are omitted, and each embodiment is not limited to the embodiment, but can of course be combined with each other.

[0140] The container lid 20 includes: a lid main body 210, which is coupled to the container inlet 12; and a sealing member separation portion 220, which is provided on the lid main body 210 to separate the sealing member 30 from the lid main body 210.

[0141] The lid body 210, which is a structure coupled to the container inlet 12, can have various structures.

[0142] The lid body 210 can be formed in a cylindrical shape corresponding to the planar shape of the container inlet 12.

[0143] In addition, the lid body 210 and the container inlet 12 can be coupled by various coupling methods, such as insertion coupling, screw coupling, etc.

[0144] As an example, a female thread portion 213 is formed on the inner circumferential surface of the lid body 210 and is screw-coupled to the male thread portion 13 formed on the container inlet 12. Further, the lid body 210 can be screw-coupled to the container inlet 12.

[0145] In addition, based on the coupling portion 230 described later, the lid body 210 is composed of a partition portion 212 and a container coupling portion 211 on the upper side. The partition portion 212 has the same height as or is higher than the upper surface of the pressing portion 221 described later, and the container coupling portion 211 is coupled to the container inlet 12.

[0146] The partition portion 212, which is the same as or higher than the upper surface of the pressing portion 221, can be various structures to prevent the portion of the pressing portion 221 described later from being arbitrarily pressed.

[0147] The container coupling portion 211, which is the portion coupled to the container inlet 12, can have various structures according to the coupling structure of the container inlet 12 and can have a structure for sealing the inside of the container 10 before and after removing the sealing member 30.

[0148] On the other hand, a skirt portion 240 connected by a plurality of bridges 241 can be formed at the lower end of the container coupling portion 211.

[0149] The skirt portion 240 couples the container lid 20 in a state of being caught by the skirt catching portion 14 formed on the container inlet 12. When the container lid 20 is first opened, the bridges 241 are disconnected, and thus it can be used to confirm whether the container lid 20 has been opened for the first time.

[0150] On the other hand, when the container lid 20 is separated from the container inlet 12 by rotation, the sealing member 30 attached to the upper end of the container inlet 12 also needs to be separated together. Therefore, the sealing member 30 needs to be coupled to the container lid 20.

[0151] Here, various embodiments can be realized according to the coupling structure between the sealing member 30 and the container lid 20.

[0152] As an embodiment of the present invention, the upper surface of the sealing member 30 is attached to the main body 210. For this purpose, the lid main body 210 may include a coupling portion 230, and the coupling portion 230 corresponds to the upper surface 12a of the container inlet 12 and attaches to the upper surface of the edge 31 of the sealing member 30.

[0153] The coupling portion 230, which is a structure corresponding to the upper surface of the edge 31 of the sealing member 30 attached to the upper surface 12a of the container inlet 12, can be of various structures.

[0154] That is, the coupling portion 230 further protrudes inward from the inner circumferential surface of the lid main body 210 to closely adhere to the upper surface of the sealing member 30 and is integrally formed with the lid main body 210.

[0155] As an example, as Figures 7 to 10f and Figure 13 、 Figure 19 shown, the coupling portion 230 may form a plane to closely adhere to the upper surface of the sealing member 30.

[0156] In addition, as another example, for the upper ends of the coupling portion 230 and the container inlet 12, in order to insert and closely adhere one of them, a groove is formed in either one, and a part of the remaining one can be inserted into the groove.

[0157] More specifically, as Figure 3 、 Figure 4a and Figure 4b shown, the coupling portion 230 may form the groove S2 to insert the upper end of the container inlet 12.

[0158] The groove S2, which is a groove for inserting the upper end of the container inlet 12, may have a circular shape corresponding to the shape of the container inlet 12 when viewed from above.

[0159] On the other hand, when the container lid 20 is combined with the container inlet 20 after removing the sealing member 30 from the container lid 20 having the above structure, the upper end of the container inlet 12 is inserted into the groove S2.

[0160] At this time, the insertion and combination of the groove S2 and the upper end of the container inlet 12 are closely adhered to each other. The material of the container lid 20 includes plastics such as PP and PET. Considering the soft characteristics of the plastics, a sufficient close adhesion state is maintained during the pressure combination, and thus the sealed state of the container 10 can be maintained even in the state where the sealing member 30 is removed.

[0161] That is, preferably, the groove S2 has an inner circumferential surface that maintains a close adhesion state as much as possible when the upper end of the container inlet 12 is inserted.

[0162] In particular, as Figures 13 to 14b shown, at the upper end portions of the groove S2 and the container inlet 12, one or more annular protrusions 231 are formed in a protruding manner, enhancing the close contact force between the groove S2 and the upper end portion of the container inlet 12. Thus, even in a state where the sealing member 30 is removed, the sealed state of the container 10 can be maintained.

[0163] The annular protrusion 231, which is a protrusion protruding from the inner circumferential surface of the groove S2, is formed in a ring shape along the circumferential direction considering the sealing force.

[0164] Furthermore, as Figure 15 shown, for the upper end portion of the container inlet 12, in order to enhance the close contact force when inserted into the groove S2, when viewed from above, two or more protrusions 236 forming a plurality of concentric circles can be formed to form one or more grooves.

[0165] For the two or more protrusions 236, concentric circles are formed when viewed from above. Thus, when inserted into the groove S2, the close contact force between the groove S2 and the upper end portion of the container inlet 12 is enhanced through deformation. Therefore, even in a state where the sealing member 30 is removed, the sealed state of the container 10 can be maintained.

[0166] On the other hand, the combined structure of the annular protrusion 236 and the groove S2 can of course be located at opposite positions between the container inlet 12 and the joint portion 230.

[0167] In addition, as a structure opposite to the above-mentioned annular protrusion 231, one or more annular protrusions (not shown) can be formed on at least a part of the inner circumferential surface and the outer circumferential surface of the portion of the container inlet 12 inserted into the groove S2.

[0168] On the other hand, for the upper end portion of the container inlet 12 inserted into the groove S2, considering the insertion structure, the thickness in the radial direction is formed to be smaller or can have an inclined shape.

[0169] As an example, the thickness in the radial direction of the upper end portion of the container inlet 12 can be smaller than that of the lower portion.

[0170] In addition, the upper end portion of the container inlet 12 can be formed to become gradually sharper towards the upper side.

[0171] On the other hand, in Figure 15 the illustrated embodiments, of course, can be combined with each other in Figures 13 to 14b the illustrated embodiments.

[0172] Through the groove S2 and its insertion structure as described above, the container lid 20 can operate as follows.

[0173] First, before the first opening, the sealing member 30 and the container lid 20 are in a state where they are combined with the container inlet 12 to seal the container inlet 12.

[0174] When the user separates the container lid 20 by rotating or pressing, the container lid 20 and the sealing member 30 are separated from the container inlet 12 together with a magnitude opposite to the binding force of the container lid 20 to the sealing member 30.

[0175] After the user discharges the contents stored in the container 10 to the outside, such as for drinking, etc., the container lid 20 is re - combined with the container inlet 12, and then the container 10 can be sealed.

[0176] At this time, the sealing member 30 can ensure a certain degree of sealing force through the easily peelable function of the surface in contact with the container inlet 12.

[0177] On the other hand, if the user presses the pressing portion 221 according to the selection, the sealing member 30 is separated from the container lid 20 and can be removed.

[0178] If the user re - combines the container lid 20 with the container inlet 12 after removing the sealing member 30, then as Figure 4a and Figure 4b shown, using the container lid 20 combined with the container inlet 12, the container 10 can be sealed through the above - mentioned groove S2 and the container inlet 12 insertion structure, and one or more sealing tools described later.

[0179] On the other hand, the lid main body 210 may form a support portion 233. The support portion 233 protrudes inward while being spaced from the bottom surface of the joint portion 230 in contact with the upper surface of the sealing member 30, so as to keep the sealing member 20 separated from the container inlet 12 combined with the container lid 20.

[0180] The support portion 233, as a structure that protrudes inward while being spaced from the bottom surface of the joint portion 230 in contact with the upper surface of the sealing member 30 to keep the sealing member 20 separated from the container inlet 12 combined with the container lid 20, can be of various structures.

[0181] Regarding the support portion 233, as long as a part of the edge of the sealing member 30 can be inserted, it can be of any shape, and the spacing from the bottom surface of the joint portion 230 in contact with the upper surface of the sealing member 30 can actually be the same as or greater than the thickness of the sealing member 30.

[0182] The sealing member separating portion 220, as a structure provided on the lid main body 210 to separate the sealing member 30 from the lid main body 210, can be of various structures.

[0183] As an example, as Figures 2 to 6d shown, the sealing member separating portion 220 may include: a pressing portion 221 that moves downward to press the sealing member 30 to separate the sealing member 30 from the cover body 210; and a connecting portion 222 that connects the cover body 210 and the pressing portion 221 so that the pressing portion 221 can move downward by elastic deformation.

[0184] For the pressing portion 221, as a structure that moves downward to press the sealing member 30 to separate the sealing member 30 from the cover body 210, any structure that is movably provided downward on the cover body 210 is applicable.

[0185] As an example, the planar shape of the pressing portion 221 may have various shapes, such as circular, elliptical, rectangular with right angles, pentagonal star-shaped, etc.

[0186] Then, for the pressing portion 221, it may have various structures according to the structure of the connecting portion 222, such as remaining in the lowered state when the user presses or returning to the original position by elastic recovery, etc.

[0187] On the other hand, one or more pressing portions 223 for pressing the sealing member 30 may be arranged on the bottom surface of the pressing portion 221.

[0188] The pressing portion 223 is a structure that presses the sealing member 30 by moving downward in the downward direction of the pressing portion 221, and one or more pressing portions 223 may be formed.

[0189] For the pressing portion 223, as long as it is a structure that can press the sealing member 30, it can be any structure.

[0190] As an example, as Figure 6b shown, the planar shape of the pressing portion 223 is formed in an annular shape, or Figure 6c shown, the planar shape of the pressing portion 223 may be formed in a semi-circular shape.

[0191] In addition, as another example, as Figure 18 a to Figure 18 d shown, the pressing portion 223 may have various shapes according to the planar shape of the pressing portion 221.

[0192] As an example, the pressing portion 221 may be formed eccentrically from the center of the container lid 20. At this time, according to the position and shape of the pressing portion 221, the pressing portion 223 may also have various structures.

[0193] As Figure 18As shown in Fig. a, when the pressing part 221 is formed as a circle eccentric from the center of the container lid 20, the pressing part 223 can have various planar shapes such as a circle, a quadrilateral, etc.

[0194] As Figure 18 shown in Fig. b and Figure 18 d, when the pressing part 221 is formed as an ellipse eccentric from the center of the container lid 20, the pressing part 223 can have various planar shapes such as a circle, an ellipse, a quadrilateral, etc.

[0195] As Figure 18 shown in Fig. c, when the pressing part 221 is formed as a semi - circle eccentric from the center of the container lid 20, the pressing part 223 can have various planar shapes such as a circle, a semi - circle, an ellipse, a quadrilateral, etc.

[0196] The connecting part 222, as a structure that connects the lid main body 210 and the pressing part 221 so that the pressing part 221 can move downward through the elastic deformation, can be of various structures.

[0197] In particular, it is preferable that the connecting part 222 is integrally formed with the pressing part 221 and the lid main body 210.

[0198] Furthermore, the connecting part 222 is preferably in a state of moving up and down, and restoring its original state after the pressing part 221 descends, etc. For this purpose, it can have various structures such as a thin film, a bellows structure, etc.

[0199] In addition, as Figure 3 shown, the connecting part 222 can be formed to be spaced apart from the lid main body 210 up and down together with the pressing part 221.

[0200] That is, preferably, the entire container lid 20 is formed by injection molding; preferably, the seal member separating part 220 is integrally formed with the lid main body 210 so that the lid main body 210 seals the container 10 when it is combined with the container inlet 12.

[0201] At this time, a separate auxiliary space S1 for forming a seal is formed in the state where the seal member 30 is combined with the container lid 20, and an auxiliary substance that can be drunk together when drinking can be stored in the auxiliary space S1.

[0202] For the auxiliary substance, as long as it is a substance that can be stored in the auxiliary space S1, such as a granular substance, a powdery substance, a liquid substance, etc., it can be used.

[0203] In addition, as Figure 12a shown in Fig. and Figure 12bAs shown, the connecting portion 222 is formed by a plurality of strips that can be elastically deformed between the inner circumference of the lid body 210 and the pressing portion 221.

[0204] At this time, sealing cannot be performed in the vertical direction of the container lid 20, and the connecting portion 222 preferably maintains the state in which the sealing member 30 is coupled to the container lid 30.

[0205] On the other hand, when the connecting portion 222 is formed of a plurality of strips, it can have various structures such as a serrated structure or a wire structure.

[0206] Then, one or more bridges 219 arranged along the circumferential direction can be formed between the inner circumference of the lid body 210 and the pressing portion 221, and thus it can be confirmed whether the pressing portion 221 descends for the first time.

[0207] The bridge 219, as a structure arranged along the circumferential direction to confirm whether the pressing portion 221 descends for the first time, can be formed of a thin strip connecting the inner circumference of the lid body 210 and the pressing portion 221. Here, preferably, the connecting portion 222 is elastically deformable to enable the pressing portion 221 to descend, and the bridge 219 is preferably formed to be breakable when the pressing portion 221 descends.

[0208] On the other hand, a container assembly having the above-described structure can be used through the following process.

[0209] First, according to the type of content stored in the container 10 such as beverages, alcoholic beverages, engine oil, antifreeze, cooking oil, dairy products, etc., the sealing member 30 is coupled to the container 10 in a state of being inserted into the container lid 20.

[0210] Then, by applying high frequency, that is, induction, the sealing member 30 is adhered to the coupling portion 230 of the container lid 20 and the upper surface 12a of the container inlet 12, and thus the container 10 is sealed.

[0211] After the above-described process, for a container assembly circulating on the market, a user can use it by separating the container lid 20 from the container 10.

[0212] At this time, if the container lid 20 is separated from the container 10, the bonding force of the sealing member 30 to the container lid 20 is greater than the bonding force to the container inlet 12. Therefore, the sealing member 30 is also separated from the container inlet 12 together with the separation of the container lid 20.

[0213] When the container lid 20 is separated, the sealing member 30 is separated together, so that the user can tilt the container 10 to drink or use the content according to the purpose.

[0214] On the other hand, except for the case of using up the contents stored in the container 10 at one time, it can be reused. In this case, the container lid 20 is combined with the container 10 to seal the container 10.

[0215] At this time, according to the structure of the sealing member 30, when combined with the container 10 in a state of being combined with the container lid 20, sufficient sealing force for the container 10 is provided, and thus the container 10 can be effectively sealed.

[0216] In addition, the container assembly of the present invention has the characteristic that even if the sealing member 20 is removed from the container lid 20, sufficient sealing force of the container lid 20 for the container 10 can be provided through the above structure.

[0217] Furthermore, the container assembly of the present invention is such that even if the sealing member 20 is removed from the container lid 20 as follows, sufficient sealing force of the container lid 20 for the container 10 can be provided.

[0218] As a part for providing sufficient sealing force of the container lid 20 for the container 10, the inner peripheral surface of the container inlet 12, the upper end portion of the container inlet 12, and the outer peripheral surface of the container inlet 12 can be the target portions. Figures 10a to 10f In Figures 10a to 10c is a sectional view before removing the sealing member, Figures 10d to 10f is a sectional view after removing the sealing member.

[0219] First, as an example, a sealing tool is arranged at the upper end portion of the container inlet 12. Then, when the container lid 20 is combined with the container inlet 12, sufficient sealing force of the container lid 20 for the container 10 can be provided.

[0220] Specifically, as shown in reference to Figure 3 、 Figures 4a to 5b wherein, for the joint portion 230 and the upper end of the container inlet 12, a groove is formed in any one of them, and a part of the remaining one can be inserted into the groove so that any one is inserted and adhered closely.

[0221] In addition, as Figures 10d to 10f shown, an annular protrusion 234 is formed on the bottom surface of the joint portion 230, and a groove 235 for inserting the annular protrusion 234 can be formed on the upper surface 12a of the container inlet 12.

[0222] Here, the bottom surface of the annular protrusion 234 and the upper surface 12a of the container inlet 12 maintain the state of adhering to the upper and bottom surfaces of the sealing member 30. When the container lid 20 is combined with the container inlet 12 after removing the sealing member 30, the annular protrusion 234 is inserted into the groove 235, and thus the interior of the container 10 can be sealed.

[0223] Second, as an example, a sealing tool is provided on the inner circumferential surface of the container inlet 12, and when the container lid 20 is coupled to the container inlet 12, sufficient sealing force of the container lid 20 against the container 10 can be provided.

[0224] The container lid 20 is disposed at any one of the bottom surface of the connection part 222, the pressing part 221, and the pressing part 223, in particular, to be in close contact with the inner circumferential surface of the container inlet 12. When the container lid 20 is coupled to the container inlet 12, sufficient sealing force of the container lid 20 against the container 10 can be provided.

[0225] At this time, in order to improve the sealing force, one or more protruding parts 274 that protrude further inward may be formed on the inner circumferential surface of the container inlet 12.

[0226] The protruding part 274 is a part formed to provide sufficient sealing force of the container lid 20 against the container 10 by contact with any one of the bottom surface of the connection part 222, the pressing part 221, and the pressing part 223, and is preferably formed in an annular shape.

[0227] Then, the protruding part 274 is formed by a combination of concavity and convexity, and is preferably configured as a curved surface in order to maintain the close contact state.

[0228] In addition, the protruding part 274 may also be used as a surface that further extends inward above and adheres to the bottom surface of the above-mentioned sealing member 30.

[0229] On the other hand, as shown in Figure 10d , Figure 10e , Figure 10f , any one of the bottom surface of the connection part 222, the pressing part 221, and the pressing part 223 is preferably configured in the shape of an annular strip 264 to be in close contact with the protruding part 274.

[0230] Then, the annular strip 264 is preferably configured as an inclined surface so as to be more closely attached to the protruding part 274 when descending, thereby improving the close contact force with the protruding part 2741.

[0231] In addition, as shown in Figure 15 , the function of the annular strip 264 may be performed by the pressing part 223 instead of forming the annular strip 264 separately on any one of the bottom surface of the connection part 222, the pressing part 221, and the pressing part 223.

[0232] In addition, the annular strip 264, as a part of the pressing part 223, may of course protrude separately from the side surface.

[0233] Third, as an example, a sealing tool is provided on the outer peripheral surface of the container inlet 12, and when the container lid 20 is coupled to the container inlet 12, sufficient sealing force of the container lid 20 with respect to the container 10 can be provided.

[0234] As Figure 10a , Figure 10d , Figure 10e , Figure 10f shown, an upwardly inclined surface 262 is formed on the outer peripheral surface of the upper end portion of the container inlet 12, and one or more close contact sealing portions 251 that closely contact the inclined surface 262 are formed on the container lid 20, and thus sufficient sealing force of the container lid 20 with respect to the container 10 can be provided.

[0235] The inclined surface 262 is an upwardly inclined surface formed on the outer peripheral surface of the upper end portion of the container inlet 12, and may be composed of a flat surface, a curved surface, or the like.

[0236] As Figure 10a , Figure 10d , Figure 10e shown, the close contact sealing portion 251, which is a portion that closely contacts the inclined surface 262, may protrude from the container lid 20, for example, from the bottom surface of the coupling portion 230 and / or the inner peripheral surface of the container coupling portion 211.

[0237] The shape of the close contact sealing portion 251 may have various shapes, such as a strip shape (a cross-sectional shape is a straight shape, a sharp shape, etc.), a stepped shape as Figure 10d shown.

[0238] One or more close contact sealing portions 251 that closely contact the inclined surface 262 are formed on the container lid 20, and thus sufficient sealing force of the container lid 20 with respect to the container 10 can be provided.

[0239] In addition, as Figure 10f shown, the close contact sealing portion 251 may also be formed as an inclined surface 258 that closely contacts the inclined surface 262.

[0240] As a method different from the method of forming the inclined surface 262, as Figure 9 , Figure 10a , Figure 10b shown, one or more annular outer convex portions 261, 262 may be formed on the outer peripheral surface of the container inlet 12.

[0241] The outer convex portions 261, 262 are portions that protrude outward from the outer peripheral surface of the container inlet 12, and protrude to such an extent that the container lid 20 does not interfere with the container inlet 12.

[0242] On the other hand, in the case where two or more of the outer convex portions 261 are formed, considering the descent when the container lid 20 is coupled to the container inlet 12, they can be formed such that the degree of protrusion from the outer peripheral surface of the container inlet 12 gradually increases from the upper side to the lower side.

[0243] Then, as Figure 9 , Figure 10a , Figure 10b shown, the close contact sealing portion 251 that closely contacts the outer convex portions 261, 262 can protrude from the container lid 20, for example, the bottom surface of the coupling portion 230, the support portion 233, and / or the container coupling portion 211 as the portion that closely contacts the outer convex portion 261.

[0244] In addition, when closely contacting and sealing with the outer convex portions 261, 262, an inclined surface 254 can be formed on the container lid 20, for example, the bottom surface of the coupling portion 230, the support portion 233, and / or the container coupling portion 211.

[0245] As Figure 10b , Figure 21 shown, when the container lid 20 is coupled to the container inlet 12, the inclined surface 254 closely contacts the outer convex portion 261 through descent, and further can seal the interior of the container 10.

[0246] Fourth, as an example, in the outer peripheral surface of the container inlet 12, a sealing tool is disposed near the lower end of the container coupling portion 211 of the container lid 20. Then, when the container lid 20 is coupled to the container inlet 12, sufficient sealing force of the container lid 20 with respect to the container 10 can be provided.

[0247] As an example, one or more close contact convex portions 267 are formed near the lower end of the container lid 20. The convex portions 267 closely contact a contact surface 271 formed on the outer peripheral side of the container inlet 12. By contacting the close contact convex portions 267 on the outer peripheral side of the container inlet 12, sufficient sealing force of the container lid 20 with respect to the container 10 can be provided.

[0248] The close contact convex portions 267 can be formed in more than one as the portion formed near the lower end of the container lid 20 to closely contact the contact surface 271 formed on the outer peripheral side of the container inlet 12, and discard the feature of being closely formed on the contact surface 271.

[0249] As an example, when the container lid 20 is coupled to the container inlet 12, the close contact convex portions 267 closely contact the contact surface 271 formed on the outer peripheral side of the container inlet 12 at the end and / or side through descent, and further can provide sufficient sealing force of the container lid 20 with respect to the container 10.

[0250] On the other hand, the above-mentioned sealing tool can of course be configured individually or two or more of them can be combined and arranged on the container lid 20 and the container inlet 12.

[0251] In addition, the above-mentioned sealing tool is realized by the mutual combination of protrusions, grooves, inclinations, etc., so it can of course be located at different positions in the container lid 20 and the container inlet 12.

[0252] That is, an annular protrusion is formed on either the container lid 20 or the container inlet 12, and the remaining one is closely attached to the annular protrusion, thereby sealing the interior of the container 10.

[0253] The above is only a description related to a part of a preferred embodiment that can be realized by the present invention. Therefore, it is well known that the scope of the present invention should not be limited to the above-mentioned one embodiment. The technical idea and its fundamental technical idea of the present invention described above can all be included within the scope of the present invention.

Claims

1. A container component, characterized in that, comprising: a container (10) for storing contents; a container lid (20) coupled to the container inlet (12); a sealing member (30) having a bottom surface attached to the upper end of the container inlet (12) of the container (10) and coupled to the container lid (20); when the container lid (20) is separated from the container (10) by rotation, in order to separate the sealing member (30) from the container inlet (12), the bonding force between the sealing member (30) and the container lid (20) is greater than the bonding force between the container inlet (12) and the sealing member (30), the container lid (20) includes: a lid body (210) coupled to the container inlet (12); and a sealing member separation part (220) provided on the lid body (210) to separate the sealing member (30) from the lid body (210), the sealing member separation part (220) includes: a pressing part (221) that moves downward to press the sealing member (30) to separate the sealing member (30) from the lid body (210); a connecting part (222) connecting the lid body (210) and the pressing part (221) to move the pressing part (221) downward by elastic deformation, one or more pressing parts (223) are arranged on the bottom surface of the pressing part (221), and the pressing parts (223) press the sealing member (30) to separate the sealing member (30) from the lid body (210), the upper surface of the sealing member (30) is adhered to the container lid (20).

2. The container component according to claim 1, characterized in that, the lid body (210) includes a coupling part (230), the coupling part (230) is the upper surface corresponding to the part where the edge (31) of the sealing member (30) adhered to the upper surface (12a) of the container inlet (12).

3. The container component according to claim 2, characterized in that, the coupling part (230) is formed as a plane to closely adhere to the upper surface of the sealing member (30).

4. The container component according to claim 2, characterized in that, for the coupling part (230) and the upper end of the container inlet (12), in order to insert and closely adhere one of them, a groove is formed in any one of them, and a part of the remaining one is inserted into the groove.

5. The container component according to claim 2, characterized in that, the coupling part (230) forms a groove (S2) to insert the upper end of the container inlet (12).

6. The container component according to claim 1, characterized in that, the connecting part (222) is integrally formed with the pressing part (221) and the lid body (210).

7. The container component according to claim 1, characterized in that, the connecting part (222) is formed by a plurality of strip-shaped members that are elastically deformable between the inner circumference of the lid body (210) and the pressing part (221).

8. The container component according to claim 1, characterized in that, The sealing member separation part (220) is integrally formed with the lid body (210) to seal the container (10) when the lid body (210) is coupled to the container inlet (12).

9. A container lid, characterized in that it is a container lid for the container assembly of claim 1, wherein the container assembly includes: a container (10) for storing contents; a container lid (20) coupled to the container inlet (12); a sealing member (30) having a bottom surface attached to the upper end of the container inlet (12) of the container (10) and coupled to the container lid (20).

10. The container lid according to claim 9, characterized in that the connecting part (222) is integrally formed with the pressing part (221) and the lid body (210).

11. The container lid according to claim 9, characterized in that the connecting part (222) is formed of a plurality of strips that are elastically deformable between the inner circumference of the lid body (210) and the pressing part (221).

12. The container lid according to claim 9, characterized in that the sealing member separation part (220) is integrally formed with the lid body (210) to seal the container (10) when the lid body (210) is coupled to the container inlet (12).

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