Patent ID: 12227345

MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a container stopper and a container having same coupled thereto according to the present invention will be described with reference to the accompanying drawings.

Referring to a container stopper according to a first embodiment of the present invention as illustrated inFIGS.1and2, a container stopper100is coupled to a container inlet12of a container10in which content is held, the container stopper including: a stopper body110that is coupled to the container inlet12and has, on the upper side thereof, an auxiliary space S1in which auxiliary contents42having a granular structure is held; and an upper cover120that is coupled to the stopper body110, forms the auxiliary space S1together with the stopper body110, and covers the auxiliary space S1.

The container10is configured to contain liquid materials such as beverages and powder-type materials, and various configurations are possible as long as the container has the container inlet12for discharging materials from the container.

The contents contained in the container10may include various substances, depending on a liquid material to be drunk together with solid pills of auxiliary contents42and a combination with the auxiliary contents. The contents usually include a liquid material.

Also, in the container10, a portion except for the container inlet12may have various shapes, such as a cylindrical shape and a quadrangular pillar shape.

Also, the container10may have materials such as plastic materials or glass.

Meanwhile, the container inlet12serves as an outlet through which the contents are discharged to the outside, and is a part that is opened and closed by the opening and closing of the container stopper100, and various structures are possible depending on the coupling structure of the container inlet12.

The stopper body110is coupled to the container inlet12and configured to form an auxiliary space S1in which the auxiliary contents42of the granular structure are contained on the upper side. The stopper body may have various configurations depending on the coupling structure with the container inlet12and the coupling structure with the upper cover120.

The stopper body110may be coupled to the container inlet12by various coupling structures such as screw coupling or snap-fit coupling.

In particular, the stopper body110can seal the inside of the container10when coupled to the container inlet12, and it is preferable that a sealing member (not shown) is interposed and installed. However, the stopper body may have the coupling structure disclosed in International Publication No. WO 2021/017348 without installation of a sealing member.

Also, the stopper body110may include: a container coupling portion111coupled to the container inlet12; and a cover coupling portion112extending upward from the container coupling portion111and coupled to the upper cover120.

The container coupling portion111is a portion coupled to the container inlet12, and may be configured in various ways depending on the coupling structure with the container inlet12.

That is, the container coupling portion111may be coupled to the container inlet12by various coupling structures such as screw coupling or snap-fit coupling.

In particular, the container coupling portion111can seal the inside of the container10when coupled to the container inlet12, and it is preferable that a sealing member (not shown) is interposed and installed. However, the container coupling portion may have the coupling structure disclosed in International Publication No. WO 2021/017348 without installation of a sealing member.

In addition, in the container coupling portion111as illustrated inFIGS.1and2, a skirt portion130may be connected by a plurality of bridges131. The skirt portion is locked to a locking protrusion15which is formed on the outer circumferential surface of the container inlet12to check whether the container has been opened in a state in which the container coupling portion is coupled to the container inlet12.

Also, when screw-coupled to the container inlet12, the container coupling portion111may have a female threaded portion111awhich is screw-coupled to a male threaded portion12aformed in the container inlet12.

The cover coupling portion112is a portion that extends upward from the container coupling portion111and is coupled to the upper cover120. This portion may have various configurations depending on the coupling structure with the upper cover120, and thus will be described together with the upper cover120.

Also, it is preferable that the container coupling portion111and the cover coupling portion112are divided vertically by a partition wall portion140coupled to the inner circumferential surface so as to form the auxiliary space S1.

The partition wall portion140is coupled to the inner circumferential surface of the stopper body110to form the auxiliary space S1and configured to divide the container coupling portion111and the cover coupling portion112vertically, and may have various configurations depending on the vertically dividing structure.

In an example, as illustrated inFIGS.1and2, the partition wall portion140may have a disc shape, and may be formed integrally with the stopper body110or may be insertion-coupled to a recess groove or a protrusion117formed on the inner circumferential surface of the stopper body110.

Meanwhile, in addition to the disc shape, the partition wall portion140may have various shapes and structures according to embodiments to be described later in order to reinforce the function and coupling structure with the container inlet12.

The upper cover120is coupled to the stopper body110to form the auxiliary space S1together with the stopper body110and is configured to cover the auxiliary space S1, and may have various configurations according to the coupling structure with the cover coupling portion112.

Here, the upper cover120is coupled to the cover coupling portion112by a hinge portion150at one end of the reference line that passes through the center of the upper cover120as illustrated inFIGS.1to8. The upper cover may be detached by rotating about the hinge portion150with respect to the cover coupling portion112.

In addition, the upper cover120may include: an upper surface portion121that is parallel to the partition wall portion140, which will be described later, and forms an upper surface of the container stopper; and a side wall portion122that extends downward from the edge of the upper surface portion121.

The upper surface portion121is a portion that is parallel to the partition wall portion140and forms the upper surface of the container stopper, and this portion may have a disc shape.

Also, the overall shape of the upper surface portion121may be changed to exert a function and, for example, the central portion thereof may be slightly concave depending on design, stacking conditions, etc.

The side wall portion122is an extension portion of the outer circumferential surface of the stopper body110, and extends from the upper surface portion121and will be described later. This portion may be modified in various ways depending on the design, stacking conditions, etc.

The hinge portion150is configured to connect the cover coupling portion112to the upper cover120at one end of the reference line that passes through the center of the upper cover120. This connection can be established by various methods as long as the upper cover120is hinge-rotatable with respect to the cover coupling portion112.

In particular, the thickness and width of the hinge portion150may be determined, in order to enable hinge rotation of the upper cover120with respect to the cover coupling portion112and to maintain the opened state to some extent.

In addition, when the upper cover120is coupled to the upper cover120while being coupled to the hinge portion150, a separate sealing means is provided as illustrated inFIGS.1to4. In order to facilitate the hinge rotation, the lower end of the upper cover120and the upper end of the cover coupling portion112may be coupled to each other with a gap.

Also, when the upper cover120is coupled to the upper cover120while being coupled to the hinge portion150, it is preferable that a handle portion160is formed in a region opposite to the hinge portion150so that a user can conveniently separate the upper cover120from the cover coupling portion112.

The handle portion160is configured to be formed in a region opposite to the hinge portion150so that the user can conveniently separate the upper cover120from the cover coupling portion112, and the handle portion may have various structures.

For example, the handle portion160may have a structure similar to that of a separation portion disclosed in International Publication No. WO 2021/017348.

In addition, the handle portion160may be integrally formed with the upper cover120at a region opposite to the hinge portion150, and may extend toward the outside of the cover coupling portion112.

Also, as illustrated inFIG.2, the handle portion160is tilted upward when the user separates the upper cover120from the cover coupling portion112. The handle portion may be held while being fixed to the outer circumferential surface of the upper cover120.

Here, a coupling portion161for coupling with the handle portion160may be formed on the outer circumferential surface of the upper cover120.

The coupling portion161is a portion that is formed on the outer circumferential surface of the upper cover120for coupling with the handle portion160, and this portion may have various structures depending on the coupling structure such as insertion coupling.

Also, the handle portion160is coupled to the cover coupling portion112, and then may be maintained while being coupled to the cover coupling portion112by an adhesive or the like so as to check whether the container has been opened.

When manufactured in consideration of the feasibility of injection molding, the handle portion160may be manufactured in a connected state by the cover coupling portion112, bridges, and the like, in order to check whether the container has been opened.

In addition, the handle portion160may be maintained while being coupled to a separate coupling portion (not shown) that is formed on the outer circumferential surface of the cover coupling portion112in a state in which the upper cover120is coupled to the stopper body110.

The coupling between the handle portion160and the coupling portion may have various coupling structures such as insertion coupling.

When the upper cover120has a structure that is coupled to the cover coupling portion112by the hinge portion150, the upper cover120and the stopper body110may be integrally formed by plastic injection molding and thus conveniently manufactured.

Furthermore, the upper cover120and the stopper body110are integrally with each other even during use, and convenient use is possible. Moreover, there is a great industrial advantage due to convenient recycling.

As illustrated inFIG.8, the upper cover120may be coupled to the cover coupling portion112by snap-fit coupling, or may be coupled to the cover coupling portion112by screw coupling.

Here, the present invention is characterized by the coupling between the upper cover120and the cover coupling portion112and the forming of the above-described auxiliary space S1by the partition wall portion.

Here, the auxiliary space S1is a space for containing auxiliary contents distinguished from contents contained in the container10, and the auxiliary contents for combination with the contents may be contained therein.

In particular, the auxiliary content contained in the auxiliary space S1is an auxiliary material that is separated from the liquid contents contained in the container10before drinking and is then taken together with the contents during drinking. The auxiliary contents may include auxiliary contents (tablet medicine, etc.) of a powder or granular structure rather than a liquid material.

Also, it is preferable that the auxiliary space S1is blocked from the outside air in consideration of the fact that the separate auxiliary contents41are contained therein.

Accordingly, it is preferable that the upper cover120and the cover coupling portion112are provided with a sealing means for sealing the auxiliary space S1when coupled to each other.

The sealing means is configured to seal the auxiliary space S1when coupled to each other. According to the coupling structure of the upper cover120and the cover coupling portion112, in particular, the coupling structure described above, various configurations are possible in a plurality of embodiments (embodiments 1 to 6).

For example, as illustrated inFIGS.1and2, the sealing means may include a cover inner ring123that is in close contact with the inner circumferential surface of the cover coupling portion112in a state in which the upper cover120and the cover coupling portion112are coupled to each other.

The cover inner ring123is formed inside the side wall portion122of the upper cover120described above and configured to be in close contact with the inner circumferential surface of the cover coupling portion112in a state in which the upper cover120is coupled to the cover coupling portion112. The cover inner ring may have various configurations.

For example, the cover inner ring123may protrude downward from the bottom surface of the upper cover120.

In addition, the cover inner ring123has a thickness that enables elastic deformation in consideration of close contact with the inner circumferential surface of the cover coupling portion112, and it is preferable that the thickness thereof decreases gradually in the downward direction.

In addition, in consideration of being inserted into the inner circumferential surface of the cover coupling portion112, it is preferable that the outer circumferential surface of the cover inner ring123forms an inclination123atoward the center in a direction toward the lower end.

Also, in order to reinforce a sealing state when the cover inner ring123is in close contact with the inner circumferential surface of the cover coupling portion112, the sealing means may further include one or more annular protrusion portions118which protrude from the inner circumferential surface of the cover coupling portion112to be in close contact with the outer circumferential surface of the cover inner ring123as illustrated inFIGS.1and2.

The annular protrusion portions118have one or more ring structures that protrude from the inner circumferential surface of the cover coupling portion112so as to be in close contact with the outer circumferential surface of the cover inner ring123. These annular protrusion portions may have a structure that protrudes convexly from the inner circumferential surface of the cover coupling portion112.

The container stopper according to the present invention having the structure as described above is coupled to the container inlet12of the container10that contains the liquid contents, and the auxiliary contents41that can be taken together when drinking the liquid contents are stored in the auxiliary space S1. Accordingly, it is possible to maximize the functions of the container.

In particular, in a container stopper according to the related art, when forming a structure for storing auxiliary contents, a plurality of members have to be provided, or a container inlet12has to be changed. Therefore, the structure thereof becomes complicated, and the manufacturing cost is high. However, in the present invention, since the container stopper is formed by an integral structure or a simple structure, manufacturing is simplified. In particular, collection for recycling is conveniently accomplished by the single structure.

Also, the basic essential point of the present invention is to provide a simple structure of the container stopper having the auxiliary space for storing the auxiliary contents. Various embodiments are possible according to the coupling structure between the stopper body110and the upper cover120.

Hereinafter, modified embodiments of the first embodiment of the present invention will be described with a focus on differences from the first embodiment. Here, the same or similar description to the first embodiment of the present invention is omitted for convenience.

A container stopper according to a second embodiment of the present invention is an embodiment that further includes an auxiliary container30for containing second auxiliary contents in addition to the configuration of the first embodiment of the present invention.

Hereinafter, a container stopper according to a second embodiment of the present invention will be described with a focus on differences from the first embodiment.

The auxiliary container30is a container coupled to the stopper body110and containing second auxiliary contents which are the same as the auxiliary contents provided in the auxiliary space S1or different therefrom, and this container has various configurations depending on the coupling structure of the stopper body110.

For example, the auxiliary container30may include: an upper portion31which is coupled to the container coupling portion111by insertion-coupling with the inner circumferential surface of the container coupling portion111; a side wall portion32which extends downward from the upper portion31and forms a second auxiliary space S2; and a cover portion33which is detachably coupled to the lower end of the side wall portion32and covers the second auxiliary space S2.

The upper portion31is configured to be coupled to the container coupling portion111by insertion-coupling with the inner circumferential surface of the container coupling portion111, and this portion may have various configurations.

For example, the upper portion31may have a disc structure that is in close contact with the bottom surface of the partition wall portion140described above.

Also, the edge of the upper portion31is disposed between the bottom surface of the partition wall portion140and the upper end of the container inlet12, and thus may serve as a sealing member for sealing an inner space S3of the container10.

The side wall portion32is configured to extend downward from the upper portion31to form the second auxiliary space S2, and this portion may have various configurations.

For example, the side wall portion32extends downward from the upper portion31, and thus, the second auxiliary space S2may be formed into a cylindrical space.

The cover portion33is configured to be detachably coupled to the lower end of the side wall portion32to cover the second auxiliary space S2, and it is preferable that the cover portion is airtightly coupled in order to prevent mixing with the contents inside the container10described above.

As illustrated inFIGS.3and4, one end of the cover portion33may be hinge-coupled to the side wall portion32, and the other end thereof may be insertion-coupled thereto by a protrusion33aand a recess portion32a.

Also, the cover portion33may integrate with the upper portion31and the side wall portion32through plastic injection molding, or may be formed as a sealing member that seals the lower end of the side wall portion32by using induction, conduction, or the like.

Here, an example, in which the upper portion31of the auxiliary container30is formed separately from the partition wall portion140, has been described. However, the stopper body110is vertically penetrated, and the upper portion31of the auxiliary container30is detachably installed to the inner circumferential surface of the stopper body110. Accordingly, the upper portion may also be configured as the partition wall portion140.

Specifically, an embodiment ofFIG.3may be embodied by integrating the partition wall portion140and the upper portion31of the auxiliary container30and detachably installing the upper portion31of the auxiliary container30to the inner circumferential surface of the stopper body110.

That is, inFIG.3, an example, in which a portion other than the edge of the upper portion31of the auxiliary container30is removed from the partition wall portion140, may be embodied.

The container stopper according to the second embodiment having the configuration as described above is further provided with the auxiliary container30for forming the second auxiliary space S2in addition to the auxiliary space S1formed above the partition wall portion140. Accordingly, when the contents stored in the container10is drunk, the second auxiliary contents in addition to the auxiliary contents are additionally provided, and thus, various functions may be obtained.

Also, considering that the auxiliary contents are stored in the auxiliary space S1as described above, the auxiliary space S1needs to be sealed so that outside air does not flow therein.

Hereinafter, a third embodiment having a sealing means for sealing the auxiliary space S1separately from or together with the sealing means disclosed in the first embodiment of the present invention will be described.

As illustrated inFIGS.5to7, a container stopper according to the third embodiment of the present invention is provided with a sealing means for sealing the auxiliary space S1separately from or together with the sealing means disclosed in the first embodiment of the present invention.

The sealing means may include: one or more first concave-convex portions811formed at the upper end of the cover coupling portion112; and a second concave-convex portion821which is formed at the lower end of the upper cover120to be shape-fitted to and in close contact with the first concave-convex portions811in a state in which the upper cover120is coupled to the cover coupling portion112.

The sealing means disclosed in the second embodiment of the present invention is provided at the lower end of the upper cover120and the upper end of the cover coupling portion112so as to seal the auxiliary space S1, and this sealing means has a concave-convex structure.

The first concave-convex portions811include one or more protrusions and recesses formed at the upper end of the cover coupling portion112, and may have various configurations depending on the shape of the second concave-convex portion821which will be described later.

For example, the first concave-convex portions811may include a pair of protrusions that form a groove so that a protrusion of the second concave-convex portion821is inserted, which will be described later.

Here, the first concave-convex portions811are shown just as protrusions in the cross-sectional structure, and have a ring shape when viewed from the top.

The second concave-convex portion821is configured to be formed at the lower end of the upper cover120to be shape-fitted to and in close contact with the first concave-convex portions811in a state in which the upper cover120is coupled to the cover coupling portion112, and the second concave-convex portion may have various configurations.

For example, the second concave-convex portion821may include a protrusion which is inserted into the groove formed by the pair of protrusions of the first concave-convex portions811described above.

Also, considering that the auxiliary contents are stored in the auxiliary space S1as described above, the auxiliary space S1needs to be sealed so that outside air does not flow therein.

Hereinafter, a fourth embodiment having a sealing means for sealing the auxiliary space S1separately from or together with the sealing means disclosed in the first embodiment of the present invention will be described.

Compared to the first embodiment, the container stopper according to the fourth embodiment is modified in the snap-fit coupling structure between the upper cover and the cover coupling portion and the coupling structure between the container coupling portion and the container inlet.

First, as illustrated inFIG.8, an upper cover120as a separate member may be coupled to a cover coupling portion112by snap-fit coupling, instead of being integrated with the cover coupling portion112.

To this end, one of the upper cover120or the cover coupling portion112may have an annular protrusion831, and the other one may have an annular recess groove841.

Also, in order to check whether the first separation from the cover coupling portion112has been made, the upper cover120may include an auxiliary skirt portion851connected by a plurality of auxiliary bridges862as illustrated inFIGS.9and10.

As illustrated inFIG.9, the auxiliary skirt portion851is locked to an annular protrusion861formed on the outer circumferential surface of the cover coupling portion112, and may be separated from the upper cover120by cutting of the auxiliary bridges862when the upper cover120is separated from the cover coupling portion112.

Next, as a sealing means for sealing the auxiliary space S1described above, the sealing means may be provided at the lower end of the upper cover120and the upper end of the cover coupling portion112. This sealing means has a similar configuration to that of the third embodiment, and thus, a detailed description thereof will be omitted.

Next, a container sealing means for sealing the inside of the container10when the container coupling portion111and the container inlet12are coupled may be additionally provided.

The container sealing means may have various configurations depending on a container sealing structure.

For example, as illustrated inFIGS.10, the container sealing means may include a stopper inner ring142that is in close contact with the inner circumferential surface of the container inlet12in a state in which the stopper body110and the container inlet12are coupled to each other.

The stopper inner ring142is configured to be in close contact with the inner circumferential surface of the container inlet12in a state in which the container coupling portion111is coupled to the container inlet12, and this stopper inner ring may have various configurations.

For example, the stopper inner ring142may protrude downward from the bottom surface of the partition wall portion140.

In addition, the stopper inner ring123has a thickness that enables elastic deformation in consideration of close contact with the inner circumferential surface of the container inlet12, and it is preferable that the thickness thereof decreases gradually in the downward direction.

In addition, in consideration of being inserted into the inner circumferential surface of the container inlet12, it is preferable that the outer circumferential surface of the stopper inner ring142forms an inclination143toward the center in a direction toward the lower end.

Also, in order to reinforce a sealing state when the stopper inner ring142is in close contact with the inner circumferential surface of the container inlet12, one or more annular protrusion portions12bmay be further provided, which protrude from the inner circumferential surface of the container inlet12to be in close contact with the outer circumferential surface of the stopper inner ring142.

The annular protrusion portions12bhave one or more ring structures that protrude from the inner circumferential surface of the container inlet12so as to be in close contact with the outer circumferential surface of the stopper inner ring142. These annular protrusion portions may have a structure that protrudes convexly from the inner circumferential surface of the container inlet12.

In addition, as described above, a structure for sealing the container10, such as the structure disclosed in International Publication No. WO 2021/017348, may be additionally provided between the upper end of the container inlet12and the bottom surface of the partition wall portion140.

For example, one or more first concave-convex portions871may be formed at the upper end of the container inlet12, and a second concave-convex portion872may be formed on the bottom surface of the partition wall portion140so as to be shape-fitted to and in close contact with the first concave-convex portions871in a state in which the container coupling portion111is coupled to the container inlet12.

The first concave-convex portions871include one or more protrusions and recesses formed at the upper end of the container inlet12, and may have various configurations depending on the shape of the second concave-convex portion872which will be described later.

For example, the first concave-convex portions871may include a pair of protrusions that form a groove so that a protrusion of the second concave-convex portion872is inserted, which will be described later.

Here, the first concave-convex portions871are shown just as protrusions in the cross-sectional structure, and have a ring shape when viewed from the top.

The second concave-convex portion872is configured to be formed at the lower end of the partition wall portion140to be shape-fitted to and in close contact with the first concave-convex portions871in a state in which the container coupling portion111is coupled to the container inlet12, and the second concave-convex portion may have various configurations.

For example, the second concave-convex portion872may include a protrusion which is inserted into the groove formed by the pair of protrusions of the first concave-convex portions871described above.

Also, when the auxiliary container30is provided as in the second and third embodiments of the present invention, a fifth embodiment may be configured such that a second concave-convex portion872is formed on the bottom surface of the upper portion31of the auxiliary container30instead of the partition wall portion140as illustrated inFIG.11.

Also, as a modification example of the first and fourth embodiments illustrated inFIGS.1to11, the partition wall portion140may have one or more discharge holes148for discharging the contents contained in the container10.

Hereinafter, a container stopper according to a fifth embodiment of the present invention will be described with reference to the accompanying drawings.

The container stopper according to the fifth embodiment of the present invention is characterized in that, as a modification example of the first and fourth embodiments, one or more discharge holes148are formed in the partition wall portion140. Various configurations are possible depending on the formation structure of the discharge holes148and the sealing structure thereof.

In the container stopper according to the fifth embodiment of the present invention, one or more discharge holes148for discharging the contents contained in the container10may be formed in the partition wall portion140as a first example illustrated inFIGS.12to14.

The one or more discharge holes148are formed in the partition wall portion140and configured to discharge the contents contained in the container10, and these discharge holes may have various configurations.

As formation examples of the discharge holes148, the discharge hole may be formed at the central region of the partition wall portion140as illustrated inFIGS.12to14. Also, the auxiliary space S1is positioned at the center, and the discharge hole148may be formed in a portion or the entirety of the outer circumference of the auxiliary space S1as illustrated inFIG.15.

When the auxiliary space S1is positioned at the central region and the discharge hole148is formed in the entirety of the outer circumference of the auxiliary space S1, the partition wall portion140may be coupled to the inner circumferential surface of the stopper body140by a plurality of bridges146.

Also, the discharge hole148may be formed by an upper protrusion portion149that extends, above the partition wall portion140, from the edge of the vertically penetrated discharge hole148.

Also, as a formation example of the discharge hole148, a plurality of discharge holes148may be formed as illustrated inFIG.16.

Also, as a formation example of the discharge hole148, when the stopper body110is viewed from above as illustrated inFIGS.22A and22B, the discharge hole148is positioned on one side, in particular, positioned biased to a region in which the handle portion160is located, and the partition wall portion140may be formed in the other regions.

Also, in the discharge hole148, the auxiliary space S1and the inner space S3of the container10may be isolated from each other by a blocking portion128provided in the upper cover120.

The blocking portion128is provided in the upper cover120and configured to isolate the auxiliary space S1from the inner space S3of the container10when the upper cover120is coupled to the stopper body110, and this blocking portion may have various configurations depending on blocking methods.

For example, the blocking portion128may have the similar configuration as the cover inner ring123described above.

Specifically, the blocking portion128is configured to be in close contact with the inner circumferential surface of the upper protrusion portion149in a state in which the upper cover120is coupled to the cover coupling portion112, and this blocking portion may have various configurations.

For example, the blocking portion128may protrude downward from the bottom surface of the upper cover120.

In addition, the blocking portion128has a thickness that enables elastic deformation in consideration of close contact with the inner circumferential surface of the upper protrusion portion149, and it is preferable that the thickness thereof decreases gradually in the downward direction.

In addition, in consideration of being inserted into the inner circumferential surface of the upper protrusion portion149, it is preferable that the outer circumferential surface of the blocking portion128forms an inclination toward the center in a direction toward the lower end.

Also, in order to reinforce a sealing state when the blocking portion128is in close contact with the inner circumferential surface of the upper protrusion portion149, one or more annular protrusion portions147may be further provided, which protrude from the inner circumferential surface of the upper protrusion portion149to be in close contact with the outer circumferential surface of the blocking portion128.

The annular protrusion portions147have one or more ring structures that protrude from the inner circumferential surface of the upper protrusion portion149so as to be in close contact with the outer circumferential surface of the blocking portion128. These annular protrusion portions may have a structure that protrudes convexly from the inner circumferential surface of the upper protrusion portion149.

In addition, the blocking structure of the discharge hole148by the blocking portion128may have various embodiments as illustrated inFIGS.19and20.

For example, as a structure for preventing the contents from flowing in between the lower end of the blocking portion128and the upper end of the upper protrusion portion149, an annular protrusion portion891and an annular recess groove portion892into which the annular protrusion portion891is inserted may be formed at the upper end of the upper protrusion portion149and the lower end of the blocking portion128, respectively.

Here, one annular protrusion portion891may be formed as illustrated inFIG.20, or two or more may be formed as illustrated inFIG.19.

Also, in order to reinforce the contact state when the annular protrusion portion891is inserted, the annular recess groove portion892may have a tapered shape of which the width is reduced toward the inside.

In addition, as described above, a structure for sealing the container10, such as the structure disclosed in International Publication No. WO 2021/017348, may be additionally provided between the upper end of the container inlet12and the bottom surface of the partition wall portion140.

As illustrated inFIG.17, the upper end of the container inlet12and the bottom surface of the partition wall portion140may have similar structures to the first concave-convex portions871and the second concave-convex portion872as in the fourth embodiment (seeFIG.10).

The sealing coupling between the upper cover120and the cover coupling portion112may be established by the sealing means (seeFIG.9) described in the first to fifth embodiments. For example, this sealing coupling may include a similar structure to the example illustrated inFIG.9of the third embodiment.

In addition, in order to prevent the upper cover120from being arbitrarily separated from the stopper body110, the container stopper according to the present invention may further include a separation preventing means.

The separation preventing means is configured to prevent the upper cover120from being arbitrarily separated from the stopper body110, and this separation preventing means may have various configurations.

For example, as illustrated inFIGS.21A and21B, the separation preventing means may include: a moving member480which is inserted into a first recess groove483formed on the outer circumferential surface of the cover coupling portion112; and a guide portion482which allows a user to guide the movement of the moving member480from the first recess groove483to a second recess groove124formed on the outer circumferential surface of the upper cover120.

The moving member480is inserted into the first recess groove483formed on the outer circumferential surface of the cover coupling portion112so as to prevent the upper cover120from being arbitrarily separated from the stopper body110, and then, this moving member is moved to the second recess groove124by the user so as to separate the upper cover120from the stopper body110. This moving member may have various configurations.

Here, the guide portion482having a protrusion structure is inserted into the moving member480, and the moving member has a slot481that is formed vertically and can move up and down with respect to the guide portion482.

The slot481is a through hole formed in the moving member480so that the guide portion482having a protrusion structure is inserted into this through-hole, and the through-hole can move up and down with respect to the guide portion482. The upper end and lower end of this through hole may have substantially the same size as the outer diameter of the guide portion482, and the middle portion thereof may be slightly smaller than the outer diameter of the guide portion482.

Also, the guide portion482is configured to allow the user to guide the movement of the moving member480from the first recess groove483to the second recess groove124formed on the outer circumferential surface of the upper cover120. This guide portion482may include one or more protrusions that protrude outward so that the protrusions can be inserted into slots481formed in the moving member480, and may preferably include a pair of protrusions.

Also, by using the container to which the container stopper according to the present invention having the above configuration is coupled, it is possible to drink in various ways.

For example, first, a user separates the upper cover120from the stopper body110, that is, the cover coupling portion111and then takes the auxiliary contents42contained in the auxiliary space S1. Subsequently, the user separates the stopper body110from the container10and then can drink the contents contained in the container10.

Also, the user separates the stopper body110from the container10and then drink the contents contained in the container10. Subsequently, the user couples the stopper body110to the container10, separates the upper cover120from the stopper body110, that is, the cover coupling portion111, and then takes the auxiliary contents42contained in the auxiliary space S1. Accordingly, the contents and auxiliary contents can be taken in various ways.

The above is merely described with respect to some preferred embodiments that may be implemented according to the present invention. Thus, as is well known, the scope of the present invention should not be construed as being limited by the above embodiments, and the technical ideas of the present invention described above and technical concepts on the basis of these technical ideas are considered to be included in the scope of the present invention.