KR102693809B1 - Lids for packaging containers - Google Patents

Abstract

The present invention discloses a packaging container lid, which includes a cap-shaped body having a male screw formed on an outlet of a packaging container around an inner surface and a female screw for screw coupling, a ring-shaped band formed with a gap of a predetermined distance from a lower edge of the body and having claws arranged obliquely at predetermined intervals to engage with a ratchet formed on the outlet of the packaging container around the inner surface, a stopper formed integrally by protruding downward from a lower edge of the body located inside the band so as to come into contact with an upper surface of a pedestal formed underneath when capping the outlet of the packaging container, a plurality of bridges formed integrally with the stopper and the claws at predetermined intervals to connect the body and the band, and a flange formed integrally by protruding with the same diameter as the band around the lower outer surface of the body and blocking an external force from being applied to the band or the bridge from coming into contact with the outside.

Description

LIDS FOR PACKAGING CONTAINERS

The present invention relates to a lid for opening and closing the outlet of a packaging container containing liquid contents such as beverages, oil, and soy sauce, and more specifically, to a packaging container lid capable of preventing the outlet of the packaging container from being excessively tightened during capping.

Generally, packaging containers for liquid contents such as various beverages, oil, and soy sauce have a spout protruding on one side of the upper surface, and a male screw formed around the outer surface of the spout, so that the lid with the female screw formed is opened and closed by screwing it together.

These caps are injection-molded to form an integral body with a ring-shaped band connected as a bridge to the lower edge of the cap-shaped body to maintain the initial capping state at the spout of the packaging container.

And, in order to prevent the body and band from easily rotating in the direction of opening, claws are formed at regular intervals on the inner surface of the band to protrude obliquely and engage with ratchets formed on the outer surface of the outlet of the packaging container.

Meanwhile, if a strong force is applied to rotate the body in the direction of opening, a load is applied to the bridge and it breaks, and this releases the body's lock state due to the restraining action of the band, so that it can be freely released and separated from the outlet of the packaging container.

Therefore, it is easy to check whether the first opening of the lid is due to whether the bridge connecting the body and the band is broken or not.

However, conventional packaging can lids have a problem in that they are excessively tightened (over-capping) when they are turned with strong force using a separate tool, such as a wrench or spanner, or a capping machine to cap the outlet of the packaging can, and as a result, the aluminum sealing ring inserted inside (used to reduce contact with air to prevent product deterioration during distribution) folds or breaks, making it impossible to maintain a complete seal.

In addition, when packaging containers containing liquid contents are stacked in multiple layers, the weight of the containers exerts excessive pressing pressure on the body of the lid, causing some bridges to break, which significantly reduces the reliability of the product.

The background technology or prior art described herein is information that the inventor possesses or acquired in the process of deriving and completing the present invention, and is intended to help understand the technical significance of the present invention and to be usefully used in prior art searches and examinations, and does not mean technology that was generally known and widely used in the technical field to which the present invention belongs prior to the filing of the present invention.

KR 20-0480820 Y1(2016. 07. 04.) KR 20-0482269 Y1(2016. 12. 30.) KR 20-0467260 Y1(2013. 05. 28.) KR 20-0493351 Y1(2021. 03. 10.)

Accordingly, the inventor of the present invention, while comprehensively considering the above-mentioned various matters, has made great efforts and continuously researched to develop a new structure of a packaging can lid, which prevents the bridge connecting the body and the band from being unintentionally broken while not excessively tightening the process of capping the outlet of the packaging can, and also protects the bridge from the pressing load received when stacking in multiple layers while capping the outlet of the packaging can, in order to solve the technical limitations and problems of the existing packaging can lid, and as a result, has led to the creation of the present invention.

Therefore, the technical problem and purpose to be solved by the present invention is to provide a packaging container lid that can prevent over-capping during the process of capping the outlet of the packaging container.

Another technical problem and object of the present invention is to provide a packaging container lid that can prevent a bridge from breaking when capping the outlet of the packaging container.

Another technical problem and object of the present invention is to provide a packaging container lid that can prevent a pressing load from being transmitted to a bridge when loading a packaging container.

The technical problems and objectives to be solved by the present invention are not limited to the technical problems and objectives mentioned above, and other technical problems and objectives not mentioned will be clearly understood by those skilled in the art to which the present invention belongs from the description below.

In order to realize a new idea for solving the technical problem of the present invention as described above and to effectively achieve a specific technical purpose, a specific means according to an embodiment of the present invention is provided, including: a cap-shaped body having a male screw formed on the inner surface of the outlet of the packaging container and a female screw for screw coupling formed on the inner surface of the body, a ring-shaped band formed with a gap of a predetermined distance from the lower edge of the body and having claws arranged obliquely at predetermined intervals to engage with a ratchet formed on the inner surface of the outlet of the packaging container, a stopper formed integrally by protruding downward from the lower edge of the body located inside the band so as to come into contact with the upper surface of a pedestal formed on the lower surface of the outlet when the body and the band are capped at the outlet by a predetermined range or more, a plurality of bridges formed integrally by protruding with a predetermined interval between the stopper and the claws to connect the body and the band, and a plurality of bridges formed integrally by protruding with the same diameter as the band on the outer surface of the lower surface of the body, and when an external force is applied to the band or the bridge is A packaging container lid is provided, characterized by including a flange that blocks contact with the outside.

Accordingly, the present invention can prevent the body and the band from rotating in the opening direction at the same time by engaging the claw of the band with the ratchet formed around the outer surface of the pedestal when capping the outlet of the packaging can, and when a strong force is applied to rotate the body in the opening direction, a limit load is applied to the bridges formed one by one in the claws, so that the normal state is not maintained and the bridges break, so that the body can be released and separated from the outlet of the packaging can.

In addition, when the body is completely mounted on the outlet of the packaging container, the stopper comes into contact with the upper surface of the pedestal formed on the packaging container, thereby preventing the pressing load applied to the body from being transmitted to the bridge, thereby protecting the bridge from the pressing load received when stacking in multiple layers while capping the outlet of the packaging container.

In addition, a preferred embodiment (aspect) of the present invention further includes a slit which is formed on the claws in which the bridge is integrally formed among the claws, and in the process of turning and locking the body and the band in a direction to close them simultaneously in order to cap the outlet of the packaging container, when the claw comes into contact with the ratchet formed at the outlet of the packaging container, the slit is flexibly and resiliently bent by elastic deformation to pass over the ratchet, thereby preventing the bridge from breaking and maintaining a normal state during the process of capping the outlet of the packaging container.

In addition, a preferred embodiment (aspect) of the present invention further comprises a jig groove into which a jig is fitted, which is arranged at a predetermined interval from the stopper and prevents the body and band from rotating during the injection molding process using a screw-removing mold, thereby preventing the body and band from rotating during the injection molding process using a screw-removing mold.

In addition, as a preferred embodiment (aspect) of the present invention, the stopper prevents the two slide cores for forming a gap between the body and the band from colliding with the rotary core for forming the female screw of the body during the injection molding process with a screw-removal mold, thereby reducing the defective rate of the product due to wear of the mold and extending the life of the mold.

According to an embodiment that implements the technical idea on which the unique solution is based in order to solve the technical problem of the present invention, when the outlet of the packaging container is capped beyond a certain range, the stopper does not come into contact with the upper surface of the pedestal formed on the packaging container and causes interference, so that it is not excessively tightened, thereby preventing damage and breakage of the internal sealing due to over-capping.

In addition, during the process of capping the outlet of the packaging can, the claw of the band can be engaged with the ratchet formed on the packaging can to prevent the body and the band from rotating in the opening direction at the same time, and if a strong force is applied to the body in the opening direction to force it to rotate, a limit load is applied to the bridge connecting it to the band, so that the normal state is not maintained and it breaks, so that it can be released and separated from the outlet of the packaging can.

In addition, when the body is completely mounted on the outlet of the packaging container, the stopper comes into contact with the upper surface of the pedestal formed on the packaging container, thereby preventing the pressing load applied to the body from being transmitted to the bridge, thereby protecting the bridge from the pressing load received when stacking packaging containers in multiple layers while the outlet of the packaging container is capped.

In addition, in the process of turning and locking the body and band in the direction of closing them simultaneously to cap the outlet of the packaging can, the claw is elastically deformed by the slit when it comes into contact with the ratchet formed at the outlet of the packaging can, so that it bends flexibly and resiliently, and the bridge does not break or stretch during the capping process and maintains a normal state, so that bridge breakage and defects can be prevented during capping.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by a person skilled in the art to which the present invention belongs from the description of the claims.

Figure 1 is a perspective view showing a packaging container lid according to an embodiment of the present invention separated from the outlet of the packaging container.
FIG. 2 is a cross-sectional view showing a state in which a packaging container lid according to an embodiment of the present invention is capped to the outlet of the packaging container.
FIG. 3 is a perspective view showing the overall shape of a packaging container lid according to an embodiment of the present invention as viewed from above.
FIG. 4 is a perspective view showing the overall shape of a packaging container lid according to an embodiment of the present invention as viewed from below.
FIG. 5 is a bottom view showing a packaging container lid according to an embodiment of the present invention.
Figure 6 is a cross-sectional view showing the section from A to A' in Figure 5.
FIG. 7 is a partial cross-sectional view to help understand the state in which a packaging container lid according to an embodiment of the present invention is capped to the outlet of the packaging container.
FIG. 8 is a perspective view showing the overall shape of a packaging container lid according to another embodiment of the present invention as viewed from below.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the attached drawings.

Prior to this, it should be noted that the terms described below have been defined in consideration of their functions in the present invention, and should be interpreted as concepts consistent with the technical idea of the present invention and meanings commonly used or commonly recognized in the relevant technical field.

In addition, if it is determined that a detailed description of a known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description is omitted.

The drawings attached herein may be exaggerated or simplified in some parts for the purpose of explaining the composition of the technology, the operation and working principles of the technology, for ease of understanding, and for clarity of the technology, and it is disclosed that each component in the drawings does not exactly match the actual size and shape.

In addition, the term and/or in this specification means a combination of a plurality of related described items or including any item among a plurality of related described items, and when it is said that a part includes a certain component, this does not mean that other components are excluded, but rather that other components may be further included, unless specifically stated otherwise.

That is, the terms “include,” “have,” etc., used in this specification mean that there exists a feature, number, step, process, operation, component, part, or a combination thereof, but should be understood to not exclude the possibility of the existence or addition of one or more other features, numbers, steps, processes, operations, components, parts, or combinations thereof.

In addition, the terms top, bottom, upper surface, lower surface, or upper, lower, upper side, lower side, front/back, left/right, etc. used in the present invention are used for convenience in distinguishing the relative positions of each component. For example, the upper part in a drawing may be named or referred to as the upper part and the lower part as the lower part, and the length direction may be named or referred to as the front/back direction, and the width direction may be named or referred to as the left/right direction.

Additionally, the terms first, second, etc. used in the present invention can be used to describe various components. That is, the terms first, second, etc. can be used only for the purpose of distinguishing one component from another component.

[Example 1]

A packaging container lid according to an embodiment of the present invention includes a body (10), a band (20), a stopper (30), and a bridge (40) as its main components, as shown in FIGS. 1 to 6.

The body (10) is formed in a cap shape so that it can be covered over the outlet (50) of the packaging container, and a female screw (11) is formed around the inner surface thereof for screw connection with a male screw (53) formed in the outlet (50) of the packaging container.

That is, the body (10) is formed in a cylindrical shape with a closed upper surface to tightly seal the inlet of the outlet (50) of the packaging container by screw-connecting it to the outlet (50) of the packaging container and covering the inlet of the outlet (50) from the outside so as to prevent the contents inside the packaging container from leaking out, and a female screw (11) corresponding to the male screw (53) of the outlet (50) is formed on the inner circumferential surface.

And, around the outer surface of the body (10), a plurality of ribs (12) are formed to protrude radially to reinforce strength.

In addition, a flange (16) is formed integrally by protruding around the lower outer surface of the body (10) to block external force applied to the band (20) or external contact with the bridge (40).

That is, the flange (16) is integrally formed to protrude around the lower outer surface of the body (10) to have the same diameter as the outer diameter of the band (20) in order to prevent external force from being applied to the band (20) or the bridge (30) from coming into contact with the outside.

Here, it is preferable to form a longitudinal or inclined serration shape, a rough or uneven pattern, or a knurling or serration-like pattern on the outer peripheral surface of the body (10) to prevent slipping when held by hand and turned for opening and closing.

The band (20) is formed in a round ring shape and is integrally formed with the lower edge of the body (10) with a gap (G) of a certain distance.

And around the inner surface of the band (20), claws (21) that engage with the ratchet (52) formed in the outlet (50) of the packaging container are arranged obliquely at regular intervals.

That is, the claw (21) is tilted in one direction to have a gentle incline angle in the opposite direction to the ratchet (52) of the outlet (50), and is formed in a thin plate shape to have elasticity.

The stopper (30) is integrally formed by protruding downward from the lower edge of the body (10) located inside the band (20) so as to come into contact with the upper surface of the pedestal (51) formed at the bottom of the outlet (50) of the packaging container.

That is, when the body (10) is completely mounted on the outlet (50) of the packaging container and the packaging container is loaded in multiple layers, the stopper (30) can prevent the pressing load applied to the body (10) from being transferred to the bridge (40) by coming into contact with the upper edge of the pedestal (51).

And in the stopper (30), a jig groove (31) is formed at a certain interval to fit a jig to prevent the body (10) and band (20) from rotating during the injection molding process using a screw-removing mold.

In addition, the stopper (30) serves to protect the inner surface of both slide cores for forming a gap (G) between the body (10) and the band (20) during the injection molding process using a screw-removal mold from colliding with the outer surface perimeter of the rotating core for forming the female screw (11) of the body (10).

Here, the rotating core is formed in a cylindrical shape and is configured to be rotatable by a motor, and the slide cores are symmetrically configured to be slidable on both sides of the rotating core, and each of them has a semicircular groove formed corresponding to a semicircle of the rotating core.

The bridge (40) is integrally formed between the outer surface of the stopper (30) and the upper end of the claw (21) to maintain the connection between the body (10) and the band (20) and to facilitate breaking.

That is, the bridge (40) is thin and has a slender shape and is connected to each stopper (30) by crossing one claw (21).

Meanwhile, a circular pedestal (51) is formed at the bottom of the outlet (50) of the packaging container, and a ratchet (52) having a unidirectionally inclined surface is formed at a certain interval on a portion of the outer surface of the pedestal (51), and a male screw (53) is formed at the top of the outlet (50) of the packaging container.

According to the embodiment of the present invention configured in this way, when capping the outlet (50) of the packaging container, that is, in the process of simultaneously turning and locking the body (10) and the band (20) in the closing direction as shown in FIG. 7, even if the claw (21) of the band (20) forcibly comes into contact with the ratchet (52) of the outlet (50), the contact portion of the claw (21) is flexibly and resiliently bent and expanded outward due to elastic deformation so as to naturally ride over the ratchet (52), so that the bridge (40) does not break and can be maintained in a normal state.

And the claw (21) of the band (20) can be interlocked with the ratchet (52) of the outlet (50) to prevent the body (10) and the band (20) from rotating in the direction of opening at the same time.

Afterwards, when a strong force is applied to rotate the body (10) in the direction of opening, the bridge (40) is subjected to a limit load and breaks, so that the restraint state by the band (20) is released and it can be easily separated by releasing it from the outlet (50) of the packaging container.

In particular, when the outlet (50) of the packaging container is locked beyond a certain range for capping, the stopper (30) comes into contact with the upper surface of the pedestal (51) formed on the packaging container and causes interference, so it is not tightened excessively, thereby preventing damage and breakage of the internal seal due to over-capping.

In addition, when the body (10) is completely mounted on the outlet (50) of the packaging container, the stopper (30) comes into contact with the upper surface of the pedestal (51) and supports the pressing load acting on the body (10) in a balanced manner, thereby preventing the pressing load from being transmitted to the bridge (40), and thus preventing the bridge (40) from being broken regardless of the rotational operation of the body (10).

Therefore, the reliability of the product can be improved by preventing a defect in which the initial lock and seal state of the body (10) is unintentionally released during the process of transporting and storing liquid contents in a packaging container.

[Example 2]

Meanwhile, in a packaging container lid according to another embodiment of the present invention, as shown in FIG. 8, a slit (22) is formed in each of the claws (21) in which a bridge (40) is integrally formed so that the bridge (40) is not broken and is maintained in a normal state.

That is, when the slit (22) is turned in a closed direction to simultaneously lock the body (10) and the band (20) in the outlet (50) of the packaging container, a part of the claw (21) that comes into contact with the ratchet (52) formed in the outlet (50) of the packaging container is elastically deformed to become more flexible and elastic, thereby naturally passing over the ratchet (52).

Accordingly, in the process of simultaneously turning and locking the body (10) and the band (20) in the closing direction in order to cap the outlet (50) of the packaging container, even if the claw (21) of the band (20) forcibly comes into contact with the ratchet (52) formed in the outlet (50) of the packaging container, the band naturally passes over the ratchet (52) while being bent more flexibly and elastically due to the elastic deformation effect of the slit (22), so that no load is applied to the bridge (40) during the capping process, and thus the bridge (40) is maintained in a normal state, thereby preventing damage and defects of the bridge (40) that occur during capping.

Here, among the components related to the packaging container lid according to another embodiment of the present invention, components having the same or similar operational effects as those of the above-described embodiment use the same reference numerals, and repetitive and specific descriptions thereof are omitted.

Meanwhile, the present invention is not limited to the above-described embodiment and the attached drawings, and can be variously modified and applied in various ways not illustrated within the scope that does not depart from the technical spirit of the present invention, and it is obvious to a person having ordinary skill in the art to which the present invention pertains that it can be widely applied by changing each component and equivalent other embodiment.

Therefore, the contents related to modifying and applying the technical features of the present invention should be interpreted as being included within the technical idea and scope of the present invention.

10: Body 11: Female Screw
12: Rib 16: Flange
20: Band 21: Clo
22: Slit 30: Stopper
31: Jig Home 40: Bridge
50: outlet 51: pedestal
52: Ratchet 53: Screw

Claims (2)

A cap-shaped body (10) having a male screw (53) formed around the inner surface of the outlet (50) of the packaging container and a female screw (11) formed for screw connection;
A ring-shaped band (20) formed with a gap (G) of a constant distance from the lower edge of the body (10) and having claws (21) interlocked with a ratchet (52) formed at the lower part of the outlet (50) and arranged obliquely at a constant interval around the inner surface;
A stopper (30) formed integrally by protruding downward from the lower edge of the body (10) located inside the band (20) so as to come into contact with the upper surface of the pedestal (51) formed at the lower portion of the outlet (50) when capping the body (10) and the band (20) to a certain extent or more at the outlet (50);
A bridge (40) integrally formed between the stopper (30) and the upper end of the claw (21) to connect the body (10) and the band (20);
A flange (16) formed to protrude around the lower outer surface of the body (10) to block external force from being applied to the band (20);
A slit (22) formed on each of the claws (21) and, in the process of turning and locking the body (10) and the band (20) in the direction of closing them simultaneously in order to mount them on the outlet (50), when the claw (21) comes into contact with the ratchet (52) formed on the outlet (50), it flexibly and elastically bends due to elastic deformation and passes over the ratchet (52) so that the bridge (40) does not break and maintains a normal state; and
A jig groove (31) in which a jig is inserted to prevent the body (10) and the band (20) from rotating during the injection molding process using a screw-removing mold and is arranged at a certain interval on the stopper (30);
Including,
The above flange (16) blocks the bridge (40) from contacting the outside,
The claw (21) of the above band (20) engages with the ratchet (52) formed around the outer surface of the pedestal (51) when mounted on the outlet (50) to prevent the body (10) and the band (20) from rotating in the direction of opening at the same time.
The above stopper (30) completely caps the body (10) at the outlet (50) and comes into contact with the upper surface of the pedestal (51) to prevent the pressing load acting on the body (10) from being transmitted to the bridge (40).
The above stopper (30) protects the two slide cores for forming a gap (G) between the body (10) and the band (20) during the injection molding process using a screw-removal mold from colliding with the rotating core for forming the female screw (11) of the body (10).
A packaging container lid characterized in that when the bridge (40) is rotated in the direction of opening the body (10), a limit load is applied and the normal state is not maintained and the bridge breaks.
delete

Images