Container cover and container combined therewith

Abstract

The present invention relates to a container cover and a container combined therewith, and more particularly to a container cover combined with a container for filling beverages etc. and a container combined therewith. The present invention discloses a container cover (20), which is a container cover (20) combined with a container inlet (12) of a container body (10), and forms a plurality of close contact portions in contact with the container inlet (12), characterized in that the close contact portions form a closed curve surrounding the container inlet (12), thereby blocking external air from entering the interior of the container body (10).

Description

Technical Field

[0001] The present invention relates to a container cap and a container combined therewith, and more particularly to a container cap combined with a container filled with beverages and the like and a container combined therewith. Background Art

[0002] The plastic container cover is composed of a container for filling beverages and the like and a container cover combined with the container inlet.

[0003] However, the container lid combined with the container inlet forms a slight gap due to the tolerance between the container lid and the container inlet, and the contents such as beverages may leak to the outside through the lid gap, or moisture, bacteria, etc. may enter the container from the outside, causing the contents to deteriorate or be contaminated.

[0004] To prevent this phenomenon, the following methods are used in the prior art: 1) installing a sealing member on the upper surface of the container inlet, 2) forming an inner ring at the inner lower door of the container cover, or 3) inserting a filler into the inner space of the container cover.

[0005] However, the problem with the above methods is that although method 1 is the safest method, the process of setting the sealing component on the upper surface of the container inlet will increase the manufacturing cost, and it is combined with other materials and cannot be recycled.

[0006] The problem with method 2 is that when the container cover is combined with the container inlet, moisture, external gas, bacteria, etc. cannot be completely blocked due to the tolerance between the inner wall or outer wall of the container and the inner circle set in the inner space of the container cover. Summary of the invention

[0007] (Technical issues to be resolved)

[0008] The object of the present invention is to provide a container cover and a container combined therewith in order to solve the above-mentioned problem. The structure of the container cover combined with the container inlet can completely block moisture, external air, bacteria, etc. from entering the interior of the container.

[0009] (Methods of solving the problem)

[0010] The present invention is used to achieve the above-mentioned purpose of the present invention. The present invention solves the above-mentioned problem by changing the structure of each combination part so that the container inlet has a blocking function when combined with the container cover.

[0011] The present invention is used to achieve the purpose as stated above. The present invention discloses a container cover, which is a container cover 20 combined with a container inlet 12 of a container body 10, forming a plurality of close contact portions in contact with the container inlet 12, and is characterized in that the close contact portions form a closed curve surrounding the container inlet 12, blocking external air from entering the interior of the container body 10.

[0012] The present invention discloses a container, comprising: a container body 10, which is used to load contents and has a container inlet 12; a container cover 20, which is combined with the container inlet 12, and is characterized in that a plurality of close contact parts that are in close contact with each other are formed in at least one of the container cover 20 and the container inlet 12, and the close contact parts form a closed curve surrounding the container inlet 12, thereby blocking external air from entering the interior of the container body 10.

[0013] The container includes: a container body 10, which is used to load contents and has a container inlet 12; a container cover 20, which is combined with the container inlet 12, wherein the container cover 20 includes: a main body 26, which is close to the upper end of the container inlet 12; a side wall portion 25, which extends downward from the main body 26 to form a nut portion 24 that is screwed to the bolt portion 14 on the outer peripheral surface of the container inlet 12, and the main body 26 includes an inner ring 100 that protrudes from the bottom surface of the main body 26 and is inserted into the inner peripheral surface of the container inlet 12.

[0014] One or more inner circumferential protrusions 121 are formed at the container inlet 12 , and when the container cover 20 is coupled to the container inlet 12 , the inner circumferential protrusions 121 protrude toward the inner ring 100 and contact the outer circumferential surface of the inner ring 100 .

[0015] One or more inner ring protrusions are formed on the container cover 20 , and when the container cover 20 is combined with the container inlet 12 , the inner ring protrusions protrude toward the inner peripheral surface of the container cover 20 and contact the inner peripheral surface of the container cover 20 .

[0016] On the container cover 20, an intermediate ring 210 is formed on the bottom surface of the main body 26 and is inserted into a groove 220 formed in a circular shape at the upper end of the container inlet 12. When the container cover 20 is combined with the container inlet 12, more than one close contact portion is formed.

[0017] For the upper end of the container inlet 12 , with the groove 220 as the center, the outer upper end portion 221 is lower than the inner upper end portion 222 .

[0018] The outer peripheral surface of at least one of the inner side and the inner upper end portion 222 of the container inlet 12 is a curved surface, and the container cover 20 is formed with an inclined surface 215 so that when the container cover 20 is combined with the container inlet 12, it contacts the curved surface.

[0019] (Effects of the Invention)

[0020] The advantages of the container cover of the present invention and the container combined therewith are that the close contact portion in contact with the container inlet forms a closed curve and forms multiple close contact portions, which are combined with the container inlet to completely block moisture, external air, bacteria, etc. from entering the interior of the container.

[0021] Furthermore, the container lid of the present invention and the container combined therewith have the advantages that the close contact portion in contact with the container entrance forms a closed curve, and multiple close contact portions are formed to completely block moisture, bacteria, etc., thereby improving the sealing force of the container, ensuring the stability of the contents loaded into the container, and a wide variety of contents can be loaded.

[0022] Furthermore, the container lid of the present invention and the container combined therewith have the advantages that the close contact portion in contact with the container entrance forms a closed curve, and multiple close contact portions are formed to completely block moisture, bacteria, etc., and no sealing components are required for sealing the container, which significantly reduces the manufacturing cost of goods including the container and contributes to environmental protection.

[0023] Furthermore, the container cap of the present invention and the container combined therewith have the advantages that the close contact portion in contact with the container inlet forms a closed curve, and multiple close contact portions are formed to completely block external air, bacteria, etc., and a single material such as a synthetic resin agent (e.g., PE, PP, PET) is used for both the container and the container cap, which can maximize the recycling and reuse of the container cap.

[0024] Furthermore, the container cap and the container combined therewith of the present invention have the advantage that, since the container and the container cap are made of a single material such as synthetic resin, the container cap and various containers can be recycled and reused to the maximum extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a perspective view showing a container according to the first embodiment of the present invention.

[0026] Figure 2a yes Figure 1 The cross-sectional view along the Ⅰ-Ⅰ direction, Figure 2b It is shown Figure 2a A cross-sectional view of a state in which the container cover is separated from the container.

[0027] Figure 3 It is enlarged to show Figure 2a Enlarged cross-sectional view of section A1.

[0028] Figure 4a is a cross-sectional view showing a container according to a second embodiment of the present invention, Figure 4b It is enlarged to show Figure 4a Enlarged cross-sectional view of section B1.

[0029] Figure 5a It is shown Figure 4aA cross-sectional view of a modified example of the container, Figure 5b It is enlarged to show Figure 5a Enlarged cross-sectional view of section B2.

[0030] Figure 5c It is enlarged to show Figure 5a Enlarged cross-sectional view of section B3.

[0031] Figure 6a and Figure 6b They are Figure 4a The modified example shown in Figure 5b An enlarged cross-sectional view of a modified example shown in FIG.

[0032] Figure 7 is a cross-sectional view showing a container according to a third embodiment of the present invention.

[0033] Figure 8a It is enlarged to show Figure 7 Enlarged cross-sectional view of section C1.

[0034] Figure 8b It is shown Figure 8a An enlarged cross-sectional view of a modified example.

[0035] Figure 8c yes Figure 8a A modified example is shown, an enlarged cross-sectional view of an example in which a flexibility imparting groove is formed in a side wall portion.

[0036] Figure 8d yes Figure 8a A modified example is shown, an enlarged cross-sectional view of an example in which a flexibility imparting groove is formed in a skirt joint protrusion.

[0037] Fig. 9 1 is a cross-sectional view showing a container according to a fourth embodiment of the present invention.

[0038] Fig.10a It is enlarged to show Fig. 9 Enlarged cross-sectional view of section D1.

[0039] Fig.10b It is shown Fig.10a An enlarged cross-sectional view of a modified example.

[0040] Fig.10c It is shown Fig.10a An enlarged cross-sectional view 2 of a modified example.

[0041] Fig.10d It is shown Fig.10c An enlarged cross-sectional view of a modified example.

[0042] Figures 11a to 11e It is shown Fig. 9 A modified example of the D1 portion is an enlarged cross-sectional view of multiple embodiments of the seal for the container.

[0043] Fig.12 is a cross-sectional view showing a container according to a fifth embodiment of the present invention.

[0044] Fig.13 is to expand Fig.12 Enlarged cross-sectional view of section E1.

[0045] Fig.14 It is shown Fig.12 A cross-sectional view of a modified example of a container.

[0046] Fig.15 is to expand Fig.14 Enlarged cross-sectional view of section E2.

[0047] Fig.16 It is shown Fig.13 An enlarged cross-sectional view of a modified example.

[0048] Fig.17 It is shown Fig.15 An enlarged cross-sectional view of a modified example.

[0049] Figures 18a to 18h These are some cross-sectional views showing structural examples of a container inlet that can be used for the container of the present invention.

[0050] Figures 19a to 19c These are some cross-sectional views showing structural examples of container lids that can be used for the container of the present invention.

[0051] Figures 20a to 20d These are some cross-sectional views showing structural examples of the container of the present invention.

[0052] Figures 21a to 21c These are some cross-sectional views showing structural examples of the container of the present invention.

[0053] Fig. 22 is a cross-sectional view showing a container according to a seventh embodiment of the present invention.

[0054] Fig.23 It is shown Fig. 22 A cross-sectional view of a container and a container cover separated from each other.

[0055] Fig.24 is to expand Fig. 22 Enlarged cross-sectional view of section G.

[0056] Fig.25 2 is a cross-sectional view showing an example of a plurality of contact structures between a container cover and a container inlet in the container of the present invention.

[0057] Fig.26a and Figure 26bThese are some cross-sectional views showing the structure of one or more raised rings formed on the lower end of the side wall portion of the container cover and the container inlet in contact with the raised rings in the container of the present invention. DETAILED DESCRIPTION

[0058] The container cap and the container combined therewith of the present invention will be described below with reference to the accompanying drawings.

[0059] The technical gist of the present invention is to provide a new container cover and container structure, which can prevent external gas, bacteria, etc. from entering the container and prevent the contents from leaking out only by combining the container cover made of synthetic resin material with the container inlet.

[0060] Specifically, the container of the present invention includes: a container body 10, which is used to load contents and has a container inlet 12; a container cover 20, which is combined with the container inlet 12, and is characterized in that a plurality of close contact parts that are in close contact with each other are formed in at least one of the container cover 20 and the container inlet 12, and the close contact parts form a closed curve surrounding the container inlet 12, thereby blocking external air from entering the interior of the container body 10.

[0061] The container body 10 is used to hold not only liquid substances such as beverages, but also powders, tablets, granules and other contents. Depending on the shape and material of the liquid, powder, granules, etc., a variety of materials such as synthetic resin and glass can be used.

[0062] In particular, in order to be combined with the container cover of the present invention, the container body 10 and the container cover 20 have the same material, for example, PP, PE, PET and the like.

[0063] The close contact portion is a portion that is in close contact with at least one of the container cover 20 and the container inlet 12 , and any structure may be adopted as long as it is a portion that can form a close contact between the container cover 20 and the container inlet 12 .

[0064] In particular, regarding the close contact portion disclosed in the present invention, when the container cover 20 is rotated and / or lowered toward the container inlet 12 (for example, a single-piece or two-piece one-touch cover and an undercut cover (snap-on cover)) and combined, the two parts are in close contact due to the force of the container cover 20 descending toward the container inlet 12, thereby having the advantage of being combined to the container inlet in a manner that can completely block moisture, external air, bacteria, etc. from entering the interior of the container.

[0065] In addition, the container body 10 is basically formed in a cylindrical shape as the portion connected to the container cover 20, that is, the container inlet 12, and the remaining portions can adopt various structures according to the design and appearance.

[0066] Furthermore, the container inlet 12 is formed at a discharge port of the container body 10 to discharge the contents to the outside, and is combined with the container cover 20 . Various structures can be adopted according to the combination structure of the container.

[0067] In particular, the container inlet 12 is combined with the container cover 20 of the main product by rotation, and preferably, partially forms a cylindrical shape. In addition, for a one-piece one-touch cover (also called a Duma cover), such as a two-piece one-touch cover in which the cover and the main body are formed as one body by a hinge and an undercut cover combined only by an undercut (representative products: lactic acid bacteria yogurt products, the container of the product having a structure of being combined by descending toward the container inlet 12 is also preferably formed into a cylindrical shape.

[0068] The container cover 20 is a member combined with the container inlet 12 of the container body 10 , and a portion facing the container inlet 12 is open. The container cover 20 has a cylindrical shape corresponding to the shape of the container inlet 12 .

[0069] For example, the container cover 20 may include: a main body portion 26 , which is in close contact with the upper end of the container inlet 12 ; and a side wall portion 25 , which extends downward from the main body portion 26 and is combined with the container inlet 12 .

[0070] The main body 26 is a portion that is in close contact with the upper end of the container inlet 12 , and can have various shapes according to the external structure of the container cover 20 , for example, a circular plate shape can be adopted.

[0071] In addition, the container cover 20 includes an inner ring 100 , also called a ring gasket, which protrudes from the bottom surface of the main body 26 and is inserted into the inner circumference of the container inlet 12 in order to improve the sealing force of the container body 10 .

[0072] The inner ring 100 is a portion protruding from the bottom surface of the main body 26 and inserted into the inner circumference of the container inlet 12 in order to improve the sealing force of the container body 10 , and can adopt various structures according to the contact structure with the container inlet 12 .

[0073] The side wall portion 25 is a member extending downward from the main body portion 26 and coupled to the container inlet 12 . Various structures may be adopted depending on the coupling structure with the container inlet 12 .

[0074] For example, the side wall portion 25 is coupled to the container inlet 12 in a screw-coupled structure, wherein the side wall portion 25 may include a nut portion 24 screw-coupled to a bolt portion 14 formed on an outer circumferential surface of the container inlet 12 .

[0075] Furthermore, for the combination with the container inlet 12, according to the embodiment, a snap-on combination structure (eg, a one-piece and two-piece one-touch cover and an undercut cover structure) may be used.

[0076] The outer peripheral surface of the container inlet 12 forms one or more annular coupling protrusions, and the inner surface of the side wall portion 25 forms an annular coupling groove for inserting the coupling protrusions of the container inlet 12, so that the container cover 20 can be coupled to the container inlet 12.

[0077] In addition, the container cover 20 of the present invention may be formed with a plurality of close contact portions that come into close contact with the container inlet 12 through relatively close contact with the container inlet 12 .

[0078] Furthermore, the close contact portion forms a closed curve surrounding the container inlet 12 in order to block external air from entering the interior of the container body 10 , and various structures may be adopted according to the formation position, formation structure and number of the close contact portion.

[0079] In addition, in the container cover 20 , a skirt 27 that is hooked and coupled to the skirt coupling protrusion 13 of the container inlet 12 is integrally formed at the lower end of the side wall 25 .

[0080] The skirt 27 is formed integrally with the lower end of the side wall 25 and is hooked and coupled to the skirt coupling protrusion 13 of the container inlet 12. It is separated from the side wall 25 when the container cover 20 is opened for the first time.

[0081] The skirt 27 may adopt various structures according to the combination structure with the skirt combination protrusion 13 .

[0082] Furthermore, in order to be easily separated from the side wall portion 25, the skirt portion 27 may be formed by connecting through a cutting line, or connected to the side wall portion 25 through a plurality of bridge portions.

[0083] In addition, an anti-separation protrusion 15 may be formed at a position on the container inlet 12 corresponding to the lower end portion of the skirt 27 to prevent the container cover 20 from being accidentally separated from the container inlet 12 .

[0084] The anti-separation protrusion 15 is a component formed at a position corresponding to the lower end portion of the skirt 27 on the container inlet 12 to prevent the container cover 20 from being accidentally separated from the container inlet 12. Preferably, it is formed more protruding than the outer peripheral surface of the side wall portion 25 of the container cover 20.

[0085] In addition, a plurality of protrusions 21 are formed on the container cover 20 along the circumferential direction so that the user can easily rotate it.

[0086] The present invention is described in detail below with reference to specific embodiments. Moreover, for the convenience of explanation, the characteristic part is taken as an example for detailed description.

[0087] Furthermore, although the present invention has been described according to various embodiments, these embodiments may be combined to implement within the scope that more than one embodiment does not conflict with each other.

[0088] -First embodiment

[0089] According to the first embodiment of the present invention, the container cover 20 is as follows: Figures 1 to 3 As shown, when the container cover 20 is combined with the container inlet 12 , in order to contact the outer circumferential surface of the inner ring 100 , one or more inner circumferential side protrusions 121 protruding toward the inner ring 100 may be formed.

[0090] The inner circumferential protrusion 121 is a portion that protrudes toward the inner ring 100 in order to contact the outer circumferential surface of the inner ring 100 , and may be formed in a ring shape in the circumferential direction based on the central axis in the longitudinal direction of the container inlet 12 .

[0091] Furthermore, preferably, in order to make the cross section of the container inlet 12 in the longitudinal direction form surface contact with the outer peripheral surface of the inner ring 100 instead of line contact, the inner peripheral side protrusion 121 forms a gentle curve.

[0092] In addition, the container cover 20 is a component similar to the aforementioned inner circumferential protrusion 121 , and when the container cover 20 is combined with the container inlet 12 , one or more inner ring protrusions protruding toward the inner circumferential surface of the container cover 20 are formed in order to contact the inner circumferential surface of the container cover 20 .

[0093] The inner ring protrusion is a component that protrudes toward the inner circumferential surface of the container cover 20 in order to contact the inner circumferential surface of the container cover 20 when the container cover 20 is combined with the container inlet 12, and forms a ring in the circumferential direction based on the central axis in the longitudinal direction of the container inlet 12.

[0094] Furthermore, preferably, in order to make the cross section in the longitudinal direction of the container inlet 12 form a surface contact with the inner circumferential surface of the container inlet 12 instead of a line contact, the inner ring protrusion forms a gentle curve.

[0095] In addition, in order to improve the sealing force of the container body 10, the container cover 20 is inserted into the groove 220 integrally formed along the circumference at the upper end of the container inlet 12. When the container cover 20 is combined with the container inlet 12, an intermediate ring 210 is formed on the bottom surface of the main body 26.

[0096] The intermediate ring 210 is a ring formed on the bottom surface of the main body 26 when the container cover 20 is combined with the container inlet 12 and is inserted into the groove 220 integrally formed along the circumference at the upper end of the container inlet 12. Various structures can be adopted according to the contact structure between the intermediate ring 210 and the groove 220.

[0097] For example, the vertical cross section of the middle ring 210 may be an inverted triangle or an inverted trapezoid. The end of the middle ring 210 may be a plane or a curved surface.

[0098] Furthermore, the groove 220 for inserting the intermediate ring 210 may be in a shape corresponding to the cross-sectional shape of the intermediate ring 210. In order to make the intermediate ring 210 fit tightly during insertion, preferably, the width of the cross-sectional shape of the intermediate ring 210 is reduced to a degree that gradually increases.

[0099] In addition, according to the size of the sealing force, more than two grooves 220 and intermediate rings 210 may be formed.

[0100] In addition, the groove 220 may be formed based on two (inner and outer) upper end portions 221 and 222 forming the upper end portion of the container inlet 12 .

[0101] Preferably, the two upper end portions 221 and 222 are inclined at the portion where the groove 220 is formed, so as to form a structure having elasticity.

[0102] Furthermore, preferably, the outer peripheral surface of at least one of the two upper end portions 221 and 222 is a curved surface.

[0103] Wherein, the container cover 20 is as follows Figure 3 As shown, an inclined surface 215 is formed to contact the outer peripheral surface curved surface of the upper end parts 221 and 222. When the container cover 20 is combined with the container inlet 12, the container cover 20 and the container inlet 12 are in close contact, that is, more than one close contact portion can be formed.

[0104] In addition, the upper end of the container inlet 12 , that is, the two upper end portions 221 , 222 are centered on the groove 220 , and the outer upper end portion 221 may be lower than the inner upper end portion 222 .

[0105] - Second embodiment

[0106] According to the second embodiment of the present invention, the container Figures 4a to 6b As shown, a sealing contact portion 330 supported by one or more contact bearing surfaces 310 , 320 of the container inlet 12 is formed on the container cover 20 .

[0107] The contact support surfaces 310 and 320 are portions that support the sealing contact portion 330 when the container cover 20 is combined with the container inlet 12 , and any structure may be adopted as long as it is a structure that can support the sealing contact portion 330 .

[0108] For example, the contact bearing surfaces 310, 320 are as follows: Figures 4a to 5c As shown, a coupling protrusion 13 may be formed on the skirt portion.

[0109] Specifically, if Figure 4b and Figure 5b As shown, the skirt joint protrusion 13 may be recessed to form an annular groove, so that when the container cover 20 is combined with the container inlet 12, the lower end portion of the sealing contact portion 330 can be inserted. The side surfaces of the groove may constitute contact bearing surfaces 310, 320.

[0110] Specifically, the grooves are formed with the contact support surfaces 310 and 320 in the form of side walls inclined downward so as to contact the lower end portion of the seal contact portion 330 , for example, the corner portion.

[0111] The contact support surface 310 may be composed of at least one of a first contact support surface 310 located on the inner side and a second contact support surface 320 located on the outer side. If one contact support surface is formed, it is preferably formed by the second contact support surface 320 located on the outer side.

[0112] In addition, various types of skirt-joining protrusions 13 can be formed according to the joining structure of the skirt 27 .

[0113] For example, the skirt 27 may be formed by extending from the lower end portion of the sealing contact portion 330 , wherein the skirt 27 passes through the groove and is combined with the skirt combining protrusion 13 .

[0114] Among them, Figure 4a and Figure 4b As shown, preferably, compared with the ring structure connected in an integral manner along the circumferential direction, the skirt 27 is formed by a plurality of skirt parts extending along the circumferential direction, and in order to be able to insert each skirt part, a plurality of through holes 340 are formed on the groove corresponding to each skirt part.

[0115] For example, if Figure 5a and Figure 5b As shown, the skirt 27 may be provided across the outer side of the skirt combining protrusion 13 .

[0116] The sealing contact portion 330 is a portion formed on the container cover 20 and supported by one or more contact support surfaces 310 and 320 of the container inlet 12 , and may have various structures depending on the contact structures of the contact support surfaces 310 and 320 .

[0117] For example, the sealing contact portion 330 can be formed at the lower end portion of the side wall portion 25, forming the lower end portion of the side wall portion 25 itself. Considering the connection structure of the aforementioned skirt 27, at the lower end portion of the side wall portion 25, a protrusion with a thickness less than the cross-sectional thickness of the side wall portion 25 is formed.

[0118] Preferably, the sealing contact portion 330 is formed to be in close contact with the inclined structure of the contact support surfaces 310 and 320 when the container cover 20 is lowered toward the container inlet 12 based on the rotation of the container cover 20.

[0119] That is, when the sealing contact portion 330 descends toward the container inlet 12 based on the rotation of the container cover 20 , it is inserted into the groove forming the contact support surfaces 310 , 320 and closely contacts the inclined structure of the contact support surfaces 310 , 320 .

[0120] In addition, when the contact support surfaces 310 , 320 are a pair, preferably, the thickness of the sealing contact portion 330 is greater than the minimum width formed by the pair of contact support surfaces 310 , 320 .

[0121] Furthermore, each corner of the cross section of the lower end portion of the sealing contact portion 330 may be a right angle.

[0122] In addition, when the sealing contact portion 330 is in close contact with the contact support surfaces 310 and 320, the sealing effect can be improved by increasing its flexibility.

[0123] For this reason, Figure 6a and Figure 6b As shown, the sealing contact portion 330 may be formed with one or more deformation grooves 331 adjacent to the contact portions that are in contact with the contact support surfaces 310 , 320 .

[0124] The deformation groove 331 is an annular groove formed along the circumferential direction at the position adjacent to the contact portion that contacts the contact support surfaces 310, 320. When the contact portion that contacts the contact support surfaces 310, 320 contacts the contact support surfaces 310, 320, it is deformed, thereby imparting flexibility and improving its sealing effect.

[0125] In addition, the upper end portion of the container inlet 12 may have the same or similar structure as that of the first embodiment.

[0126] And, if Figure 5c As shown, in addition to the same or similar structure as the first embodiment, the upper end portion of the container inlet 12 may include one or more contact rings 150, 160 extending from the lower end of the main body 26 in order to closely contact the upper end portion of the container inlet 12.

[0127] The contact rings 150 and 160 are portions extending from the lower end of the main body 26 in order to closely contact the upper end portion of the container inlet 12 and may be formed in a ring shape.

[0128] In particular, the contact rings 150 and 160 are composed of an inner ring and an outer ring so that the upper end portion of the container inlet 12 can be inserted.

[0129] -Third embodiment

[0130] In addition, regarding the sealing of the container cover 20 and the container inlet 12, when flexibility is imparted to the portions that contact each other, the sealing force of the container can be greatly improved.

[0131] Therefore, according to the container of the third embodiment of the present invention, one or more flexibility imparting grooves 231, 232, 233, 234 are formed at the container inlet 12, and pressurized contact portions 241, 242, 243, 215 are formed on the container cover 20, which are pressurized and contacted at positions corresponding to the flexibility imparting grooves 231, 232, 233, 234.

[0132] The flexibility imparting grooves 231 , 232 , 233 , 234 are grooves formed to impart flexibility to the portion where the container cover 20 and the container inlet 12 contact each other so as to improve the sealing force of the container, and can be formed as long as the portion where the container cover 20 and the container inlet 12 contact each other.

[0133] For example, if Figures 7 to 8b As shown, the flexibility imparting groove may be constituted by a flexibility imparting groove 231 formed at the upper end of the container inlet 12 .

[0134] The flexibility imparting groove 231 formed at the upper end of the container inlet 12 is an annular groove formed at the upper end of the container inlet 12 , and may also be the concave groove 220 disclosed in the first embodiment.

[0135] In particular, preferably, the flexibility imparting groove 231 formed at the upper end of the container inlet 12 is formed near the inner circumferential surface ( Figure 7 and Figure 8a ) or the outer surface ( Figure 8b ), so that when it comes into contact with the container cover 20, it can be deformed.

[0136] In addition, as another example, the flexibility imparting groove 234 formed at the upper end of the container inlet 12 is as follows: Figure 7 and Figure 8a As shown, if the upper end of the container inlet 12 is close to the inner circumferential surface, the container cover 20 forms an inclined surface 215 at a position corresponding to this, and when the container cover 20 is combined with the container inlet 12, the portion forming the flexibility imparting groove 234 is pressurized and contacted by the pressurized contact portion.

[0137] The flexibility imparting groove 231 formed at the upper end of the container inlet 12 is as shown in FIG. Figure 8b As shown, if the upper end of the container inlet 12 is close to the outer peripheral surface, the container cover 20 forms an inner inclined surface at a corresponding position, and when the container cover 20 is combined with the container inlet 12, the portion forming the flexibility imparting groove 231 is pressurized and contacted by the pressurized contact portion 241.

[0138] In addition, when forming the press contact portion 241 in the container cover 20, in addition to a simple inclined surface, Figure 8b As shown, the press contact portion 241 may also be formed on the outer ring disclosed in the second embodiment.

[0139] As another example, the flexibility imparting groove 232 is as follows Figure 8c As shown, it can be composed of a flexibility imparting groove 232 formed on the outer peripheral surface of the container inlet 12.

[0140] In order to form the flexibility imparting groove 232 pressurized by the container cover 20 , an annular flexibility imparting protrusion 230 is formed on the outer peripheral surface of the container inlet 12 , and the flexibility imparting groove 232 is formed by being recessed downward on the upper side of the flexibility imparting protrusion 230 .

[0141] Furthermore, the container cover 20 has a pressurizing contact portion 242 formed on the inner peripheral surface of the container cover 20 corresponding to the flexibility imparting groove 232 .

[0142] The pressurizing contact portion 242 is formed as an inclined surface inclined upward in order to pressurize a portion of the flexibility providing protrusion 230 where the flexibility providing groove 232 is formed as the container cover 20 is lowered when the container cover 20 is combined with the container inlet 12 .

[0143] As another example, the flexibility imparting groove 233 is as follows Figure 8d As shown, it can be composed of a flexibility imparting groove 233 formed on the outer peripheral surface of the container inlet 12, especially, formed on the skirt engaging protrusion 13.

[0144] The flexibility imparting groove 233 pressurized by the container cover 20 is formed by being recessed from the upper side to the lower side of the skirt coupling protrusion 13 to form the flexibility imparting groove 233 .

[0145] Furthermore, the container cover 20 has a pressurizing contact portion 243 formed on the side wall portion 25 of the container cover 20 corresponding to the flexibility imparting groove 233 .

[0146] The pressurizing contact portion 243 is formed as an inclined surface inclined upward in order to pressurize a portion of the skirt engaging protrusion 13 where the flexibility imparting groove 233 is formed as the container cap 20 descends when the container cap 20 is engaged with the container inlet 12 .

[0147] As mentioned above, the pressurized contact portions 241, 242, 243, 215 are portions formed on the container cover 20 and pressurized in contact at positions corresponding to the flexibility imparting grooves 231, 232, 233, 234. A variety of structures may be used as long as the portions forming the flexibility imparting grooves 231, 232, 233, 234 can be pressurized.

[0148] Specifically, preferably, considering that the container cover 20 rotates and / or descends relative to the container inlet 12, the force applied by the descent presses the portion forming the flexibility imparting grooves 231, 232, 233, 234, and the pressurized contact portions 241, 242, 243, 215 are formed as inclined surfaces.

[0149] However, as long as the pressurizing contact portions 241, 242, 243, 215 pressurize the portions forming the flexibility imparting grooves 231, 232, 233, 234 by the force applied by descent, various structures such as protrusions other than inclined surfaces may be adopted.

[0150] - Fourth embodiment

[0151] In addition, the present invention aims to improve the sealing force of the container by increasing the portion where the container cover 20 and the container inlet 12 are in close contact with each other when combined, and various embodiments can be adopted.

[0152] According to a fourth embodiment of the present invention, the container Fig. 9 and Fig.10a As shown, its structure can be similar to Figure 7 and Figure 8a The structure shown.

[0153] Specifically, the container cover 20 is Figure 7 and Figure 8a In the illustrated structure, an auxiliary inner ring 190 may be added between the upper end portion of the container inlet 12 and the inner ring 100 .

[0154] The auxiliary inner ring 190 is formed between the upper end portion of the container inlet 12 and the inner ring 100 and protrudes downward from the container cover 20 , particularly, from the bottom surface of the main body 26 .

[0155] Preferably, in order to prevent mutual interference with the inner ring 100 , the auxiliary inner ring 190 is shorter than the upper and lower lengths of the inner ring 100 .

[0156] Furthermore, preferably, the surface of the auxiliary inner ring 190 facing the upper end of the container inlet 12 is formed to be inclined, wherein the upper end of the container inlet 12 also forms an inclined surface through the pressurized contact portion 241 at the portion in contact with the auxiliary inner ring 190 .

[0157] In addition, the container inlet 12 may form an inner peripheral protrusion 121 that contacts the outer peripheral surface of the inner ring 100 as described in the first embodiment.

[0158] The container having the above structure can increase the contact area between the container cover 20 and the container inlet 12 to improve the sealing force of the container.

[0159] In addition, according to the fourth embodiment of the present invention, the container Fig.10a A variation of Fig.10b As shown, as a pressurizing contact portion 241 for pressurizing the portion where the flexibility imparting groove 234 is formed, instead of the auxiliary inner ring 190, a part of the inner ring 100 and the auxiliary inner ring 190 are formed integrally with each other to form an inclined surface.

[0160] In addition, if Fig.10a and Fig.10b In the embodiment shown, regarding the formation of the flexibility imparting groove 231 or the groove 220, as shown in FIG. Figure 3 As shown, it can be formed by an inner upper end portion 222 and an outer upper end portion 221 , and the heights of the inner upper end portion 222 and the outer upper end portion 221 can be the same or one of them can be higher.

[0161] especially, Fig.10a and Fig.10b In the embodiment, the height of the inner upper end portion 222 is smaller than the height of the outer upper end portion 221.

[0162] In addition, according to the fourth embodiment of the present invention, the container Fig.10a Modification example, flexibility imparting groove 234 Fig.10c As shown, it is formed in the upper end of the container inlet 12 near the outer peripheral surface.

[0163] The container cover 20 has an inclined surface 215 as a pressurizing contact portion in order to pressurize the portion where the flexibility imparting groove 234 is formed.

[0164] Fig.10c In the embodiment, the height of the outer upper end portion 221 is smaller than the height of the inner upper end portion 222.

[0165] And, according to the container of the fourth embodiment of the present invention, Fig.10d As shown, Fig.10b In a modified example, a protrusion 244 a is formed on the container cap 20 as a pressurizing contact portion for pressurizing the portion where the flexibility imparting groove 234 is formed.

[0166] In order to improve the sealing force of the container, it is preferable to relatively increase the contact portion between the upper end portion of the container inlet 12 and the container cover 20. In particular, the plurality of contact portions are preferably formed in plurality based on the path from the outside of the container to the inside of the container rather than being connected to each other.

[0167] As a first example, Fig.11a As shown, in addition to the inner ring 100 and the inner peripheral side protrusion 121 contacting the outer peripheral surface of the inner ring 100 disclosed in the first embodiment, an auxiliary inner ring 190 in close contact with the upper end portion of the container inlet 12 can also be formed on the container cover 20.

[0168] The auxiliary inner ring 190 is formed between the upper end portion of the container inlet 12 and the inner ring 100 so as to protrude downward from the container cover 20 , particularly, from the bottom surface of the main body 26 .

[0169] Preferably, in order to prevent interference with the inner ring 100 , the length of the auxiliary inner ring 190 is shorter than the upper and lower lengths of the inner ring 100 .

[0170] Also, preferably, when the container cover 20 is combined with the container inlet 12 , the auxiliary inner ring 190 contacts the upper end portion of the container inlet 12 .

[0171] To this end, preferably, the cross-section of the upper end portion of the container inlet 12 is a curved surface, and an inner peripheral surface of the upper end portion of the container inlet 12 can be formed to protrude toward the inner peripheral surface of the auxiliary inner ring 190.

[0172] As a second example, Fig.11b As shown, Fig.11a In the illustrated structure, at least one of the surfaces of the auxiliary inner ring 190 and the upper end portion of the container inlet 12 that contact each other forms an inclined surface 180, 241a.

[0173] In addition, in the first and second examples, instead of being located between the upper end of the container inlet 12 and the inner ring 100 , the auxiliary inner ring 190 may be located between the upper end of the container inlet 12 and the side wall portion 25 , and the corresponding components are formed symmetrically to each other.

[0174] As a third example, Fig.11c As shown, Fig.11b In the structure, the flexibility imparting groove 231 can also be formed.

[0175] The inner circumferential surface of the container inlet 12 may be formed as follows Fig.11a Auxiliary protrusion 122 of.

[0176] As a fourth example, Fig.11d As shown, in Fig.11a In the structure, the flexibility imparting groove 231 can also be added.

[0177] As a fifth example, Fig.11e As shown, in Fig.11d In the structure, the container inlet 12 is formed to be inclined from the upper end to the inner peripheral side protrusion 121.

[0178] Specifically, the inner peripheral surface of the container inlet 12 is inclined in a direction in which the inner diameter decreases from the upper end to the inner peripheral side protrusion 121 .

[0179] According to the above structure, when the container cover 20 is combined with the container inlet 12 , the container cover 20 is lowered toward the container inlet 12 , and the outer circumferential surface of the auxiliary inner ring 190 is in close contact with each other between the upper end of the container inlet 12 and the inner circumferential side protrusion 121 .

[0180] -Fifth embodiment

[0181] In addition, the present invention improves the sealing force of the container by increasing the portion where the container cover 20 and the container inlet 12 are in close contact with each other when combined, and various embodiments can be adopted.

[0182] In particular, if the contact portion between the upper end portion of the container inlet 12 and the container cover 20 is improved, the sealing force of the container can be improved.

[0183] According to a fifth embodiment of the present invention, the container Figures 12 to 15 As shown, the container inlet 12 forms a groove 220 in the center through the inner upper end portion 222 and the outer upper end portion 221, which can form an inner inclined surface and an outer inclined surface in which the container cover 20 contacts the inner part of the inner upper end portion 222 and the outer part of the outer upper end portion 221.

[0184] Specifically, the upper end portion of the container inlet 12 forms a groove 220 at the center through the inner upper end portion 222 and the outer upper end portion 221 .

[0185] The inner portion of the inner upper end portion 222 and the outer portion of the outer upper end portion 221 form curved surfaces and can be in close contact with the inner inclined surface and the outer inclined surface.

[0186] Furthermore, in order to facilitate deformation of the upper ends of the inner upper portion 222 and the outer upper portion 221 in the direction of reducing the width of the groove 220, that is, to facilitate deformation of the inner upper portion 222 and the outer upper portion 221 into a concave shape relative to each other, preferably, the side wall portion of the groove 220 is inclined upward.

[0187] In other words, preferably, the inner upper end portion 222 and the outer upper end portion 221 have a 'V' shape.

[0188] In addition, the container cover 20 is formed with an inner inclined surface and an outer inclined surface that are in contact with the inner portion of the inner upper end portion 222 and the outer portion of the outer upper end portion 221 .

[0189] The inner inclined surface and the outer inclined surface are formed on the container cover 20 to contact the inner portion of the inner upper end portion 222 and the outer portion of the outer upper end portion 221, and various structures may be adopted.

[0190] For example, if Figures 12 to 15As shown, the inner inclined surface may be a part of the inner ring 100 .

[0191] Furthermore, if there is an auxiliary inner ring 190 , the inner inclined surface may also be a part of the auxiliary inner ring 190 .

[0192] In addition, in other embodiments of the present invention, in addition to the fifth embodiment, the container cover 20 and the container inlet 12 may adopt a snap-on structure (eg, a single-piece and two-piece one-touch cover and an undercut cover structure) in addition to a screw connection structure.

[0193] In addition to the fifth embodiment, the container of other embodiments of the present invention is as follows Fig.14 and Fig.15 As shown, a container lid in which the main body 26 can be hinged relative to a part of the side wall 25 can be used.

[0194] Specifically, the container cover 20 is as follows Fig.14 and Fig.15 As shown, by forming the cut portion 170 on the side wall portion 25 , a portion of the side wall portion 25 can be cut in the circumferential direction.

[0195] The uncut portion of the side wall portion 25 may be formed at Fig.15 The hinge portion 172 of the middle right portion.

[0196] In addition, according to Figures 12 to 15 The structure of the embodiment shown can adopt various modifications such as a structure in which the corresponding components of the container cover 20 and the container inlet 12 are replaced with each other.

[0197] Specifically, Fig.16 and Fig.17 As shown, an auxiliary inner ring 190 and an outer contact ring 191 may be formed on the container cover 20 to form facing grooves 192 so as to allow at least a portion of the upper end portion of the container inlet 12 to be inserted.

[0198] The auxiliary inner ring 190 and the outer contact ring 191 are components formed in the container cover 20 to form the facing grooves 192 so that at least a portion of the upper end portion of the container inlet 12 can be inserted, and various structures can be adopted.

[0199] For example, the auxiliary inner ring 190 and the outer contact ring 191 are formed to extend downward from the bottom surface of the main body 26 .

[0200] Preferably, the portions of the auxiliary inner ring 190 and the outer contact ring 191 that are in contact with the upper end portion of the container inlet 12 are curved surfaces.

[0201] Furthermore, in order to facilitate deformation of the lower ends of the auxiliary inner ring 190 and the outer contact ring 191 in the direction of reducing the width of the opposing groove 192, that is, to facilitate deformation of the auxiliary inner ring 190 and the outer contact ring 191 separately from each other, preferably, the side wall portions of the opposing grooves 192 are inclined upward.

[0202] In other words, preferably, the auxiliary inner ring 190 and the outer contact ring 191 form an inverted 'V' shape toward the lower side.

[0203] In addition, preferably, the upper end portion of the container inlet 12 is formed to be sharp so that it can be easily inserted into the facing groove 192 formed by the auxiliary inner ring 190 and the outer contact ring 191 .

[0204] Furthermore, in order to facilitate insertion into the facing groove 192 , preferably, the upper end portion of the container inlet 12 forms inclined surfaces 193 , 194 that expand inwardly and outwardly with the uppermost end as a reference.

[0205] In addition, the container shown in FIG. 6 is Fig.15 The modification example of the container shown shows an example having the above-mentioned cutting portion 170.

[0206] Furthermore, the fifth embodiment of the present invention excludes the parts of the embodiments disclosed in the first embodiment and the second embodiment that do not conflict with each other ( Figure 3 The inner peripheral side protrusion 121 structure, Figure 4b or Figure 5b structure shown, etc.).

[0207] -Sixth embodiment

[0208] In addition, referring to the aforementioned embodiment, as a means to improve the sealing force of the container, preferably, the contact portion between the container cover 20 and the container inlet 12 is increased, and in particular, the contact portion between the upper end portion of the container inlet 12 and the container cover 20 is increased.

[0209] Among them, preferably, the plurality of contact portions are formed in plurality with reference to a path from the outside of the container to the inside of the container so as to be connected to each other.

[0210] In particular, the formation of the plurality of contact portions is achieved by structural deformation of the container cover 20 and the container inlet 12, and may also be formed as inclined surfaces, flexibility imparting grooves, etc. at various angles and structures.

[0211] Furthermore, the structures of the container cover 20 and the container inlet 12 may be replaced with each other, thereby changing the structures of the plurality of contact portions.

[0212] Various modifications of the container inlet 12 for forming a plurality of the plurality of contact portions based on a path from the container exterior to the container interior will be described below.

[0213] The container inlet 12 is as follows Fig.18a As shown, with the groove 220 as the center, an inner upper end portion 222 and an outer upper end portion 221 may be formed at the upper end portion.

[0214] The groove 220 is formed near the inner side or the outer side, and one of the inner upper end portion 222 and the outer upper end portion 221 has a width smaller than the other, so that it is easy to be deformed by contacting the container cover 20 .

[0215] Furthermore, the heights of the inner upper end portion 222 and the outer upper end portion 221 may be the same or different from each other.

[0216] Fig.18a The case where the width of the inner upper end portion 222 is smaller than the width of the outer upper end portion 221 is shown.

[0217] Furthermore, the width of the groove 220 gradually increases toward the upper side.

[0218] Fig.18b yes Fig.18a A modified example of the container inlet 12 is shown in FIG.

[0219] Fig.18b The height of the inner upper end portion 222 of the container inlet 12 shown may be lower than the height of the outer upper end portion 221 .

[0220] Furthermore, in order to increase the contact area with the container cover 20 , a fine annular protrusion 229 may be formed on the inner circumferential surface of the container inlet 12 .

[0221] Fig.18c yes Fig.18a A modified example of the container inlet 12 is shown in FIG.

[0222] Fig.18c The container inlet 12 shown may also be formed with Fig.18a The center of the groove 220 protrudes toward the upper side and a protruding upper end portion 225 .

[0223] In particular, the central protruding upper end portion 225 may be higher than the inner upper end portion 222 and the outer upper end portion 221 , so that the groove 220 may be formed into two divided grooves 220 a and 220 b .

[0224] Preferably, an annular groove for inserting the central protruding upper end portion 225 is formed on the container cover 20 combined with the container inlet 12 .

[0225] Fig.18d yes Fig.18a A modified example of the container inlet 12 is shown in FIG.

[0226] Fig.18d In the container inlet 12 shown, the inner upper end portion 222 is higher than the outer upper end portion 221 and has a smaller width, and a step portion 226 smaller than the inner upper end portion 222 and the outer upper end portion 221 may be formed inside.

[0227] Fig.18e yes Fig.18a A modified example of the container inlet 12 is shown in FIG.

[0228] Fig.18e The container inlet 12 is shown with Fig.18a On the contrary, the width of the outer upper end portion 221 may be smaller than the width of the inner upper end portion 222 .

[0229] Fig.18a and Fig.18d The relatively small width of the inner upper end portion 222 or the outer upper end portion 221 is formed at a position where the blocking structure can be deformed due to the pressurization of the container cover 20 or the loading of hot contents. The container inlet 12 is in addition to the third embodiment. Figure 8a and Figure 8b In addition to the structure, it can also have Fig.18e and Fig.18f , Figure 18g , Fig.21a , Figure 21b , Fig.21c , Fig.26a , Figure 26b etc. structures or part of them.

[0230] That is, Figure 8d and Fig.18f As shown, the flexibility imparting groove 233 may be formed on the outer peripheral surface of the container inlet 12 , and more particularly, the flexibility imparting groove 233 of the skirt joint protrusion 13 .

[0231] The flexibility imparting groove 233 pressurized by the container cover 20 is formed in the skirt coupling protrusion 13 so as to be recessed from the upper side to the lower side.

[0232] The flexibility imparting groove 233 may also be formed relatively by a groove-forming protruding ring 237 extending upward.

[0233] In addition, the flexibility imparting groove is as Figure 18g and Figure 18h As shown, a skirt engaging protrusion 13 is formed between the upper end of the container inlet 12 on the outer circumferential surface or the inner circumferential surface.

[0234] That is, Figure 8c and Figure 18g As shown, the flexibility imparting groove 232 may be a flexibility imparting groove 232 formed on the outer peripheral surface of the container inlet 12 .

[0235] In order to form the flexibility imparting groove 232 pressurized by the container cover 20 , an annular flexibility imparting protrusion 230 is formed on the outer peripheral surface of the container inlet 12 , and the flexibility imparting groove 232 is formed on the flexibility imparting protrusion 230 from the upper side to the lower side.

[0236] The flexibility imparting groove 232 may also be formed by a groove-forming protruding ring 238 extending upward.

[0237] As another example, Figure 18h As shown, the flexibility imparting groove 235 may be a flexibility imparting groove 235 formed on the inner circumferential surface of the container inlet 12 .

[0238] In order to form the flexibility imparting groove 235 pressurized by the container cover 20 , the inner peripheral surface of the container inlet 12 forms an annular inner flexibility imparting portion 250 , and the flexibility imparting groove 232 is formed in the inner flexibility imparting portion 250 recessed from the upper side to the lower side.

[0239] The flexibility imparting groove 235 may also be formed by a groove-forming protruding ring 239 extending upward.

[0240] In addition, the container cover 20 has a structure such as an inclined surface or an inner ring for pressurizing the groove-forming raised ring 239 .

[0241] In addition, various modifications of the container inlet 12 and the container cover 20 for forming a plurality of the plurality of contact portions based on a path from the outside of the container to the inside of the container are described below.

[0242] Fig.19a The container cover 20 shown may have Figure 5c or Figure 8b The structure of the container cover shown.

[0243] Fig.19b The container cover 20 shown is Fig.19a The modified example shows a case where the interval between the contact ring 150 and the inner ring 100 is relatively small.

[0244] Furthermore, the position of the end of the contact ring 150 is lower than the inner ring 100 .

[0245] The container inlet 12 is formed with an inclined surface, a raised ring, etc. at a portion in contact with the contact ring 150 .

[0246] Fig.19cThis is a modification of FIG. 19 , in which the contact ring 150 is formed to protrude from the inner peripheral surface of the side wall portion 25 instead of the bottom surface of the main body portion 26 .

[0247] The container inlet 12 is formed with an inclined surface, a raised ring, etc. at a portion in contact with the contact ring 150 .

[0248] Figures 20a to 20d Examples of combining a container cover with a container inlet in various structures are shown.

[0249] Fig.20a Show Figure 18g The structure of the container inlet and the container cover shown in the figure are combined with the structure of the container inlet and the container cover. Figure 8c The structures shown are similar, so detailed description is omitted.

[0250] Fig.20b Shown from Fig.18a The structure of the container inlet produces a deformed container inlet with a structure similar to Fig.10a The container lids of the structure shown are combined with each other. Fig.10a The structures shown are similar, so detailed description is omitted.

[0251] Fig.20c In the container shown, compared with the container structure of other embodiments, the upper end of the container inlet 12 forms an inner upper end portion 222 and an outer upper end portion 221, and further forms an auxiliary upper end portion 220d, forming an insertion protrusion ring 199 that is inserted into the groove 220 formed by the upper end portion 222 and the outer upper end portion 221 of the container cover 20.

[0252] In addition, an auxiliary upper end portion 220 d having a height lower than the inner upper end portion 222 and the outer upper end portion 221 is formed inside the inner upper end portion 222 of the container inlet 12 , and a groove 220 c is formed together with the inner upper end portion 222 .

[0253] Fig.20d Compared to the container shown Figure 8b The structures of the containers shown are substantially the same or similar, except for the shape of the contact ring 150 .

[0254] Fig.21a The container shown is characterized in that a plurality of contact portions for blocking external air are formed on protrusions formed on the outer peripheral surface of the container inlet 12, such as the skirt engaging protrusion 13 and the separation preventing protrusion 15.

[0255] Specifically, the skirt combining protrusion 13, anti-separation protrusion 15, etc. are formed on the protrusion on the outer peripheral surface of the container inlet 12 to form one or more grooves 271, 272 formed from the upper side toward the up and down directions, and the side wall portion 25 of the container cover 20 can form an insertion protrusion ring 273 that is inserted into at least one of the more than one grooves 271, 272.

[0256] The insertion protrusion ring 273 is inserted into at least one of the annular grooves 271, 272 formed in the protrusions on the outer peripheral surface of the container inlet 12 such as the skirt coupling protrusion 13 and the anti-separation protrusion 15, and can form more than one contact portion.

[0257] Figure 21b The container shown forms a sealing ring 274 for forming a groove 275 formed from the lower side to the upper side on the inner circumferential surface of the container cover 20, wherein a pressurizing portion 276 for pressurizing the sealing ring 274 when the container cover 20 is combined with the container inlet 12 can be formed on the outer circumferential surface of the container inlet 12.

[0258] The sealing ring 274 is a member having a groove 275 formed on the inner circumference of the container cover 20 from the lower side to the upper side, and can adopt various structures such as being spaced from the inner circumference of the side wall portion 25 of the container cover 20 and extending downward.

[0259] Furthermore, the pressurizing portion 276 is a member formed on the outer peripheral surface of the container inlet 12 to pressurize the sealing ring 274 (to enhance the blocking property) when the container cap 20 is coupled to the container inlet 12 , and may be formed as an inclined surface.

[0260] Fig.21c The container shown is Figure 21b In a modified example, the skirt combining protrusion 13, the anti-separation protrusion 15, etc. are formed on the protrusion of the outer peripheral surface of the container inlet 12, and one or more protrusions 278 are formed in the circumferential direction toward the upper side to protrude integrally, wherein the container cover 20 can form an insertion groove ring 277 at the position corresponding to the protrusion 278, and when the container cover 20 is combined with the container inlet 12, the protrusion 278 is inserted into it.

[0261] - Seventh embodiment

[0262] In addition, the aforementioned multiple embodiments may be implemented in various ways within the scope that they do not conflict with each other, such as by combining or replacing each other.

[0263] Furthermore, the container cover may have various structures in addition to the multiple embodiments shown.

[0264] The container of the seventh embodiment of the present invention is as follows Figures 22 to 24 As shown, the side wall portion 25 of the container cover 20 is double, and the aforementioned embodiments can be implemented in combination.

[0265] Specifically, the container cover 20 may further include an auxiliary side wall portion 25 a extending downward from the main body portion 26 while being spaced apart from the outer peripheral surface of the side wall portion 25 extending downward from the main body portion 26 .

[0266] The auxiliary side wall portion 25 a is a portion extending downward from the main body portion 26 while being spaced from the outer peripheral surface of the side wall portion 25 extending downward from the main body portion 26 , and can form a skirt portion 27 coupled to the aforementioned skirt coupling protrusion 13 .

[0267] That is, the auxiliary side wall portion 25a may have Figure 4b The skirt structure shown and Figure 5b The skirt structure shown.

[0268] In addition, a contact protrusion ring 430 may be formed on the auxiliary side wall portion 25 a so as to contact with a contact portion 440 formed on the container inlet 12 when the container cover 20 is combined with the container inlet 12 .

[0269] The contact protrusion ring 430 is a member formed on the auxiliary side wall portion 25 a and contacts a contact portion 440 formed on the container inlet 12 when the container cover 20 is combined with the container inlet 12 , and may have various structures.

[0270] For example, the contact protrusion ring 430 may form a lower end portion of the auxiliary side wall portion 25 a , and in order to have flexibility, the cross-sectional thickness is relatively small.

[0271] Furthermore, the end portion of the contact protrusion ring 430 is sharply formed.

[0272] The contact portion 440 is formed on the container inlet 12 and is in contact with the contact protrusion ring 410 when the container cover 20 is combined with the container inlet 12. The contact portion 440 may have various structures such as an inclined surface and a protrusion.

[0273] In particular, the contact portion 440 is formed as an inclined surface at the skirt coupling protrusion 13 .

[0274] In addition, a contact protrusion ring 410 may be formed on the side wall portion 25 so as to contact with a contact portion 420 formed on the container inlet 12 when the container cover 20 is combined with the container inlet 12 .

[0275] The contact protrusion ring 410 is a member formed on the side wall portion 25 and contacts a contact portion 420 formed on the container inlet 12 when the container cover 20 is combined with the container inlet 12 , and may adopt various structures.

[0276] For example, the contact protrusion ring 410 may form the lower end portion of the side wall portion 25 , and in order to have flexibility, the cross-sectional thickness is relatively small.

[0277] Furthermore, the end portion of the contact protrusion ring 410 is sharply formed.

[0278] Furthermore, the cross-sectional width of the outer peripheral surface of the contact protrusion ring 410 gradually decreases in multiple stages at the lower end of the side wall portion 25 .

[0279] The contact portion 420 is formed on the container inlet 12 and is in contact with the contact protrusion ring 410 when the container cover 20 is combined with the container inlet 12. The contact portion 420 may have various structures such as an inclined surface and a protrusion.

[0280] In addition, preferably, a contact portion 420 that contacts a contact protrusion ring 410 formed on the side wall portion 25 is located on an upper side of the skirt coupling protrusion 13 .

[0281] In addition, at the upper end of the container inlet 12, as Fig.24 As shown, a protruding ring 236 protruding upward is formed, and an inclined surface 244 or a protrusion contacting the protruding ring 236 may be formed on the container cover 20.

[0282] Fig.25 It is a cross-sectional view showing various structural examples such as projection-projection contact and projection-groove contact adopted when the container cover and the container inlet contact each other.

[0283] Fig.25 The structure shown shows an example in which a soft portion and a soft portion or a hard portion and a soft portion are in contact with each other to achieve a blocking function.

[0284] Fig.26a and Figure 26b These are some cross-sectional views showing the structure of one or more raised rings 451, 452, 453, 454 formed at the lower end of the side wall portion of the container cover and the container inlet in contact therewith in the container of the present invention.

[0285] One or more protruding rings 451 , 452 , 453 , 454 are formed at the lower end of the side wall portion 25 or the auxiliary side wall portion 25 a , and come into contact with contact portions 461 , 462 , 463 , 464 formed at the container inlet 12 .

[0286] The contact portions 461 , 462 , 463 , 464 are portions that contact the raised rings 451 , 452 , 453 , 454 when the container cover 20 is combined with the container inlet 12 , and may be inclined surfaces, raised portions, or the like.

[0287] The above only describes part of the preferred embodiments that can be presented by the present invention. It is well known that the scope of the present invention should not be limited by the above embodiments. The technical ideas of the present invention described above and its essential technical ideas are included in the scope of the present invention.

Claims

1. A container, comprising: A container body (10) for containing contents and having a container inlet (12); The container cover (20), combined with the container inlet (12), is characterized in that: A plurality of close contact portions that are in close contact with each other are formed on at least one of the container cover (20) and the container inlet (12), The close contact portion forms a closed curve surrounding the container inlet (12), blocking external air from entering the interior of the container body (10). Wherein, the container cover (20) comprises: A main body (26) is closely attached to the upper end of the container inlet (12); The side wall portion (25) extends downward from the main body portion (26) to form a nut portion (24) screwed to the bolt portion (14) on the outer peripheral surface of the container inlet (12). The main body (26) includes an inner ring (100) protruding from the bottom surface of the main body (26) and inserted into the inner circumferential surface of the container inlet (12). The outer peripheral surface of at least one of the outer side and the inner upper end portion (221, 222) of the container inlet (12) is a curved surface. The container cover (20) is formed with an inclined surface (215), and when the container cover (20) is combined with the container inlet (12), it contacts the curved surface. One or more inner peripheral protrusions (121) are formed on the container inlet (12), and when the container cover (20) is combined with the inner peripheral surface of the container inlet (12), they protrude toward the inner ring (100) and contact the outer peripheral surface of the inner ring (100). On the container cover (20), an intermediate ring (210) is formed on the bottom surface of the main body (26) and is inserted into a groove (220) formed in a circular shape at the upper end of the container inlet (12). When the container cover (20) is combined with the container inlet (12), one or more close contact parts are formed. The inner circumferential protrusion (121) forms a curve so that the cross section of the container inlet (12) in the longitudinal direction forms a surface contact with the outer circumferential surface of the inner ring (100). The groove (220) is formed based on two upper end portions (221, 222) forming the upper end of the container inlet (12), Wherein, the outer peripheral surfaces of the two upper end parts (221, 222) are curved surfaces. The two upper end portions (221, 222) are inclined and elastic at the portion where the groove (220) is formed. The container cover (20) and the inner ring (100) are formed with inclined surfaces that contact the outer peripheral curved surface of the upper end portion (221, 222), so that when the container cover (20) is combined with the container inlet (12), the container cover (20) and the container inlet (12) are in close contact.

2. The container according to claim 1, characterized in that One or more inner ring protrusions are formed on the container cover (20) and, when the container cover (20) is combined with the container inlet (12), they protrude toward the inner peripheral surface of the container cover (20) and contact the inner peripheral surface of the container cover (20).

3. The container according to claim 1, characterized in that For the upper end of the container inlet (12), with the groove (220) as the center, the outer upper end portion (221) is lower than the inner upper end portion (222).

Images