WO2017095073A1

WO2017095073A1 - Container cap assembly

Info

Publication number: WO2017095073A1
Application number: PCT/KR2016/013605
Authority: WO
Inventors: 성보연
Original assignee: 성보연
Priority date: 2015-11-30
Filing date: 2016-11-24
Publication date: 2017-06-08
Also published as: KR101899326B1; CN106809500A; KR20170009802A

Abstract

The present invention relates to a container cap assembly that comprises an inner cap and an outer cap to air-tightly seal the inside of a container, the inner cap being brought into close contact with and coupled to the inner surface and upper end of the mouth of the container, and the outer cap stably maintaining the inner cap in the coupled state. The present invention is characterized in that the container cap assembly comprises: the inner cap that has an outer wall part brought into close contact with the inner surface of the mouth of the container and a flange part extending outward from the upper end of the outer wall part and brought into close contact with the upper end of the mouth; and the outer cap that has a ceiling covering the upper portion of the inner cap, a sidewall part integrally formed with the ceiling and covering the outer circumferential surface of the mouth, and an internal thread formed on the inner circumferential surface of the sidewall part to correspond to an external thread formed on the outer circumferential surface of the mouth, wherein the outside edge portion of the flange part of the inner cap extends from the outer wall part beyond the sum of the thickness of the mouth and the height of the external thread, the outer cap has a protrusion protruding to a location close to the outer circumferential surface of the mouth along the circumference of the upper portion of the inner circumferential surface of the outer cap with a distance from the bottom of the ceiling such that the flange part can be inserted between the protrusion and the ceiling, and the outside edge portion of the flange part is inserted between the bottom of the ceiling of the outer cap and the protrusion so that the inner cap and the outer cap are coupled with each other.

Description

Container closure assembly

The present invention relates to a container stopper assembly for maintaining the airtight inside the container consisting of the inner cap and the outer cap to maintain a stable state of the coupling of the inner cap is in close contact with the inner surface and the top of the container spout.

In general, containers containing liquid materials such as food, beverages, oils, paints, and chemicals, including bottled water, form spouts to allow liquid substances to enter and exit.

In addition, the spout of the container is provided with a stopper for opening and closing the opening of the spout in order to restrict the entry of the liquid material.

In particular, containers for storing highly volatile contents are generally made of durable steel.

In addition, the container stopper that prevents the spout formed in the steel container is in close contact with the inner surface and the top of the spout, so as to maintain the combined state of the inner cap against the inner cap of the container and the spout of the container with chemical resistance and soft synthetic resin material for securing airtightness. The outer cap of the material is provided.

The inner cap is designed to be in close contact with the inner surface of the spout with a shape restoring force by forcing the outer diameter to be reduced to the inner surface of the container spout.

In addition, the upper portion of the inner cap has a flange portion which protrudes outward to correspond to the upper surface of the spout, which is pressed by the engagement of the outer cap to the spout to maintain the state of the inner cap coupled to the spout. In addition to the side of the inner cap to function as a complement to the confidentiality.

On the other hand, the outer cap forms a female screw corresponding to the male screw of the container spout on the inner circumferential surface in a shape surrounding the upper surface of the spout and the outer surface of the upper circumference.

The opening process of the container spout from the structure of the container stopper is performed by separating the outer cap from the spout of the container in a screw-releasing relationship, and then pulling the flange part of the inner cap to pull out the part inserted inside the spout. The process takes place.

As such, the two-step separation process of the container stopper is not only cumbersome, but also difficult to separate the inner cap from the spout of the container, and the handling of the contents in the container stuck to the inner cap (toxic substance or paint, etc. may be applied to the user's hand or Difficulty in damaging the site, etc.).

In the container closure according to the prior art, the inner cap and the outer cap are separately separated, and there is a possibility of losing the inner cap or the outer cap.

In order to solve such a problem, the applicant discloses Korean Patent Registration No. 10-0567206 (hereinafter referred to as 'prior art 1') and Korean Patent Registration No. 10-0671720 (hereinafter referred to as 'prior art 2'). I've done it.

Prior arts 1 and 2 above have a large number of respective components forming a container stopper, and the coupling structure is complicated, so there is a lot of labor due to the coupling, there is an uneconomic problem.

In addition, the prior art 1, 2 is connected at intervals between the outer cap and the inner cap, the separation of the inner cap after the separation of the outer cap is also made in stages, the inner cap is elastically separated in succession to the outer cap, the contents buried in the inner cap to the periphery It can cause problems such as splashing.

And, in storing the outer cap and the inner cap, there was a problem that the contents buried on the surface of the inner cap in contact with the contents inside the container is buried around.

The present invention simplifies the coupling structure of the outer cap and the inner cap constituting the container caps, and maintains the mutually coupled state so that the coupling or release of the container caps in one operation, and to facilitate the storage of these container caps. In addition, an object of the present invention is to provide a container closure assembly to prevent the possibility of contamination, such as contents buried in the inner cap.

A characteristic configuration of the container closure assembly for achieving the above object is an outer cap portion corresponding to the inner surface of the spout close to the container and an inner cap extending outwardly on the upper end of the outer wall portion to form a flange portion corresponding to the upper end of the spout; ; In the container cap assembly consisting of an outer cap formed with a female screw corresponding to a male screw formed on the outer peripheral surface of the spout in the inner peripheral surface of the side wall to cover the outer peripheral surface of the spout including the upper portion of the inner cap, wherein the inner cap is the outer side of the flange An end portion is formed in the outer wall portion extending from the sum of the thickness of the spout and the male screw more than the sum of the thread height, the outer cap has a circumference around the lower spaced interval of the thickness of the flange portion in the ceiling surface of the upper inner peripheral surface Accordingly, the protrusion is formed to protrude up to a position proximate to the outer circumferential surface of the spout. The inner cap and the outer cap have an outer edge portion of the flange portion fitted between the ceiling surface of the outer cap and the protrusion to be mutually coupled.

The outer cap is made of a synthetic resin material, the protrusion is formed in an annular body along the inner circumference of the outer cap, the coupling of the inner cap and the outer cap is bent by the flange portion between the ceiling surface of the outer cap and the upper surface of the protrusion. It can be made by using the nature of the shape restoration of the inner cap.

In addition, the outer cap is made of a metal plate material, the protrusion may be formed in a shape pressed inward along the outer circumference of the outer cap.

Here, the protrusion may be formed in a plurality of numbers arranged at intervals along the outer circumference of the outer cap, in this process, the protrusion is the upper side through the incision to the outside and the inside of the outer cap to the bottom of the flange portion Spans the both sides and the lower side of the protrusion may be formed in a curved shape extending part of the side wall of the outer cap.

On the other hand, the inner cap is formed to form a plate-shaped support plate extending to connect the lower portion of the outer wall portion, the bottom surface of the support plate by the outer wall portion is less than the lower end of the side wall of the outer cap on the basis of the ceiling surface of the outer cap It is preferred to have a magnet in the support plate in position.

At this time, the magnet is installed, the support plate may be formed in the upper boss, the magnet may be made to be inserted into the boss by interference fit.

In addition, the bottom of the flange portion may be formed by further forming an annular fitting protrusion fitted correspondingly between the upper edge portion of the spout and the inner end portion of the protrusion along the circumference of the flange.

According to the configuration of the present invention, by further protruding the flange portion of the inner cap to the outer side of the spout, the inner surface of the outer cap corresponding to the bottom edge of the flange portion by the locking action to maintain the engagement of the inner cap and the outer cap to the container In addition to the coupling or decoupling in one operation, there is an advantage in that the structure is simplified according to the design of each component, and thus the manufacturing cost and the combination of each component are easy.

In addition, the outer cap or the inner cap can be fixed to the container surface of the steel by the magnetic force according to the type of the contents, there is an advantage that it is easy to store while preventing the surrounding contamination, it is convenient to use.

1A and 1B are cross-sectional views schematically illustrating the container cap assembly configuration of the outer cap made of a synthetic resin material and a coupling relationship between the configurations according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view schematically illustrating a container stopper assembly configuration and a coupling relationship between these configurations in which the outer cap is formed by molding a metal sheet according to another embodiment of the present invention.

3 is a partially cutaway perspective view schematically illustrating a modified embodiment of the protrusion in FIG. 2.

4A and 4B are cross-sectional views schematically illustrating a coupling relationship of the container spout from the container plug assembly of FIG. 2 or 3.

FIG. 5 is a cross-sectional view schematically illustrating a configuration of a container closure assembly and a coupling relationship between the configurations according to another modified embodiment of FIG. 2.

6A and 6B are cross-sectional views schematically illustrating a process of forming the protrusions of FIG. 2.

7A and 7B are cross-sectional views schematically illustrating another example of forming the protrusions of FIG. 2.

The present invention is characterized in that the outer cap portion corresponding to the inner surface of the spout close to the container and the inner cap extending outwardly formed on the upper end of the outer wall portion to form a flange portion corresponding to the upper end of the spout; In the container cap assembly consisting of an outer cap formed with a female screw corresponding to a male screw formed on the outer peripheral surface of the spout in the inner peripheral surface of the side wall to cover the outer peripheral surface of the spout including the upper portion of the inner cap, wherein the inner cap is the outer side of the flange An end portion is formed in the outer wall portion extending from the sum of the thickness of the spout and the male screw more than the sum of the thread height, the outer cap has a circumference around the lower spaced interval of the thickness of the flange portion in the ceiling surface of the upper inner peripheral surface Accordingly, the protrusion is formed to protrude up to a position proximate to the outer circumferential surface of the spout. The inner cap and the outer cap have an outer edge portion of the flange portion fitted between the ceiling surface of the outer cap and the protrusion to be mutually coupled.

In describing the present invention, the container on which the installation is made is based on a standing state, that is, a state in which the spout of the container is on the upper side, and the expression on the inside refers to the direction of the center of the spout of the container or a portion thereof. And, the outer side with respect to the center of the spout of the container will be described as referring to the opposite direction of the inner side or a portion in that direction.

In addition, in the description of the present invention, the difference will be described with the addition of an apostrophe (', ") after the reference numeral to the drawing having the configuration of the modified example from each configuration of one embodiment of the reference numeral, the details of the configuration without modification The description will be omitted.

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

As shown in FIGS. 1A to 7B, the container closure assembly according to the present invention has an outer wall portion 12 and an outer wall that are in close contact with the inner surface I / S of the spout N of the container B by tight fit. The inner cap 10 is formed by forming a flange portion 14 which has an annular rim shape along the upper periphery of the portion 12 and protrudes outward and the bottom surface of the protruding portion closely adheres to the upper end of the spout N. Equipped.

As shown in FIG. 1A, the inner cap 10 may be formed by forming the support plate 16 extending inward along the lower circumference of the outer wall portion 12 to form a single plate shape.

In addition, the support plate 16 is supported to maintain the circumferential shape formed by the outer wall portion 12, the bottom surface of the support plate 16 is a flat plate so that there is no portion of the contents in the container B from the outer surface of the outer wall portion 12 It is desirable to have a shape.

In the upper surface of the support plate 16, that is, the upper part of the support plate 16 which is protected from direct contact with the contents in the container B, a single tube-shaped boss 18 extends upwardly to have an opening upward. It can be formed, and the magnet M can be installed inside the boss 18 thus formed.

In addition, between the outer surface of the boss 18 and the inner surface of the outer wall portion 12, a rib r for preventing deformation such as bending of the outer wall portion 12 inwardly around the boss 18 is provided. It may form further.

In addition, the bottom surface position of the support plate 16 is the inner cap including the flange portion 14 from the bottom surface of the ceiling 24 of the outer cap 20 to the lower end of the side wall portion 22 as compared with the outer cap 20 described later. It is preferable that the upper surface of (10) be designed to have a protruding interval d from the bottom of the support plate 16.

The protrusion gap d corresponds to the case in which the container B is made of a magnetic material including steel or in the presence of a magnetic structure around the support plate 16, the boss 18, and the magnet M. The inner cap 10 by allowing the support plate 16 of the inner cap 10 together with the outer cap 20 to be described later to be tightly fixed to the side of the container (B) or the magnetic side of the structure by the magnetic force of the magnet (M). The outer cap 20 is to facilitate storage (handling) in a combined state.

On the other hand, the inner cap 10 ′ shown in FIG. 1B is a modification of the inner cap 10 of FIG. 1A, and the outer cap 20 when the bottom position of the support plate 16 ′ is compared with the outer cap 20 ′ described later. Concave spacing less protruding from the bottom of the ceiling 24 'to the bottom of the side wall portion 22' from the top of the inner cap 10 'including the flange portion 14' to the bottom of the support plate 16 '. It can be designed to have (d ').

In addition, the inner cap 10 ′ shown in FIGS. 1B and 5 has a single tube-like boss 18 (such that the upper center portion of the support plate 16 ′ abuts against the ceiling center portion of the outer cap 20 ′, which will be described later). The boss may be formed into a shape which protrudes to have openings at the upper side and the lower side, respectively, and a magnet M 'may be provided at least at an upper side of the upper side and the lower side of the boss 18' thus formed.

At this time, when the respective magnets M 'are installed in the upper and lower openings of the boss 18', these magnets M 'are preferably arranged such that mutual attraction works.

In addition, the above-mentioned concave spacing d 'is a magnetic material around or when the container B is made of a magnetic material including steel in connection with the installation of the support plate 16', the boss 18 'and the magnet M. If there is a structure, a portion of the ceiling 24 'of the outer cap 20' together with the inner cap 10 ', which will be described later, is fixed to the side of the container B or the magnetic side of the structure by magnetic force of the magnet M'. By allowing the inner cap 10 'and the outer cap 20' to be combined to facilitate storage (handling).

In particular, the ceiling portion of the outer cap 20 'is to be fixed in close contact with the surrounding magnetic material, and to form a concave gap d', the contents of the paint or the like in the container B 'is the inner cap 10'. When the surface is buried, the effect of preventing the contents from getting around can be obtained.

On the other hand, the flange portion 14 of the inner cap 10 of the respective configurations of FIGS. 1A and 1B has an outer edge of the flange portion 14 in a state in which corresponding installation is made with respect to the spout N of the container B. The site | part has the shape which protruded outward from the outer peripheral surface E / S of the container B spout N with respect to the center of the container B spout N.

Here, the outer thread portion of the flange portion 14 further protrudes outward from the outer circumferential surface E / S of the spout N to the external thread formed on the outer circumferential surface E / S of the container B spout N. It is preferable to design so that it may protrude at the space | interval D more than the thread height of (M / S), and it may be in the position which adjoins or adjoins the inner peripheral surface I / S of the outer cap 20 mentioned later.

The design of the flange portion 14 is such that the bottom outer edge portion of the flange portion 14 spans the protrusions 26 of the outer cap 20, which will be described later, in a state in which the outer cap 20 and the inner cap 10 are integrally coupled to each other. To ensure that

4A and 4B, the flange portion 14 described above has a bottom surface of the protruding length intermediate portion of the flange portion 14, that is, the upper end and the protrusion portion 26 of the container B spout N. As shown in Figs. One or more annular projections 19 of different diameters may be formed between the inner end portions of the bottom portions of the container B or the bottom portion corresponding to the upper end of the snout N.

These annular projections 19 are for further securing the airtightness inside the container B at the time of engagement of the container stopper with respect to the container B. As shown in FIG.

On the other hand, the container closure assembly according to the present invention, the ceiling 24 covering the upper portion of the inner cap 10 and the side wall portion 22 is formed integrally to cover the outer peripheral surface of the spout (N), the side wall portion 22 The outer cap 20 which formed the internal thread (F / S) corresponding to the external thread (M / S) formed in the outer peripheral surface of the spout (N) in the inner peripheral surface of this is included.

Here, the feature of the present invention is that formed in the upper portion of the inner circumferential surface of the outer cap 20 described above to form a projection portion 26 protruding inwardly so that the flange portion 14 of the inner cap 10 is fitted. .

In the configuration of the present invention, the material of the outer cap 20 is made of a synthetic resin material and formed by molding a metal plate will be described by dividing each embodiment.

Example 1

Container cap assembly according to an embodiment of the present invention, as shown in Figure 1a and Figure 1b, the outer cap 20 is formed by injection molding of a synthetic resin material.

The outer cap 20 according to an embodiment has a spaced side wall portion including a tolerance (tolerance for inserting the flange portion 14) in the thickness of the flange portion 14 from the ceiling of the upper inner circumferential surface of the side wall portion 22. It consists of extending the protrusion part 26 which protruded in the inner peripheral surface I / S of the 22 to the position corresponding to the outer peripheral surface E / S of the container B spout N in the vicinity.

The protrusions 26 may be formed in an annular shape along the circumference of the side wall portion 22 of the outer cap 20, and may include a plurality of protrusions formed at intervals along the circumference of the side wall portion 22 of the outer cap 20. However, as will be described later, it is preferable to form an annular shape so that the coupling state of the inner cap 10 to the outer cap 20 can be stably supported.

The protrusions 26 are formed along the inner circumference of the side wall portion 22 adjacent to the ceiling 24, which acts as an undercut, which is difficult to separate from the mold during the injection molding process of manufacturing the outer cap 20. As it is difficult to manufacture and form a position.

As such a method for forming the protrusions 26, the ceiling 24 and the protrusions 26 of the outer cap 20 and the mold portion corresponding to the inner surface space of the side wall portion 22 therebetween are made of an inorganic material or the like. It may consist of inserting an insert (not shown), removing the insert which takes up the space after injection molding therefrom.

That is, the protrusions 26 may bend the flanges 14 of the inner cap 10 to correspond to the ceiling 24 and the protrusions 26 of the outer cap 20 and the inner surface space of the side walls 22 between them. It is fitted in the interference fit through the shape deformation, the coupling state is to prevent the separation from each other in the operation of opening or closing the spout (N) of the container (B).

Example 2

On the other hand, the container closure assembly of another embodiment according to the present invention, as shown in Figures 2 to 4b, the outer cap (30, 30 ') is formed of a metal plate material.

First, the outer cap 30 illustrated in FIG. 2 has an outer cap 30 sidewall portion 32 of a portion corresponding to the protrusion 26 in one embodiment from the outer side to the inner side of the upper and lower sidewall portions 32. It may consist of an annular groove having a depth.

7A and 7B, the protrusion 34 is formed by placing the outer cap 30 on the die D (frame jig) while the inner cap 10 is aligned with the outer cap 30. In this state, the pressing roller R / P may be pressed against a portion for forming the protrusion 34 while rotating the outer cap 30 including the die D (spinning during the so-called drawing process). ) Method).

That is, the formation of the protrusions 34 in the outer cap 30 is formed in the state that the inner cap 10 is mounted to show that the coupling between them.

Here, the protrusion 34 is formed using a die (not shown) corresponding to the inner cap 10 without the inner cap 10 mounted on the outer cap 30, and then the ceiling 36 and the protrusion of the outer cap 30. Naturally, the flange portion 14 of the inner cap 10 may be deformed such as to be bent and inserted into the coupling portion 34 between the 34.

Accordingly, the protrusion 34 is concave inwardly along the circumference of the side wall portion 32 of the outer cap 30 and has a continuously pressed groove shape. Accordingly, the protrusion 34 is inside the side wall portion 32 of the outer cap 30. ) Forms an annular protruding shape.

Figure 3 is a modified embodiment showing that the shape of the above-described protrusions may be formed of a plurality of arrangements formed at intervals along the circumference of the side wall portion 32 of the outer cap 30.

At this time, the formation of the above-mentioned protrusion 34 'may be made by a process of pressure drawing with a punch (not shown) in place of the pressure roller R / P.

In addition, the

projections

34, 34 ', 34 "shown in the enlarged view of FIG. 2 and FIG. 6A or 6B have the shape arrange | positioned at intervals along the periphery of the side wall part 32 of the outer cap 30. FIG. The upper boundary portions of the

protrusions

34, 34 ', 34 "are cut through the outer cap 30" and inner side while forming in multiple numbers, and the remaining length direction (circumferential direction of the side wall part 32 ") is cut out. At least a lower side of both sides or a lower portion of the outer cap 30 is pressed from the side wall portion 32 of the outer cap 30 so as to form a curved shape.

At this time, the incised upper portion of the

projections

34, 34 ', 34 "is over the edge portion of the bottom surface of the flange portion 14 of the inner cap 10 fitted between the ceiling 36" of the outer cap 30 ". It is to maintain the coupled state of the outer cap 30 'and the inner cap 10.

Here, in the above-described

protrusions

34, 34 ', and 34 ", the enlarged protrusion 34" of FIG. 3 has a die or jig (not shown) for punching inside the outer cap 30'. The upper portion of the incision (forming process) in the lower portion may be made to be pressed into the shape of the punch (drawing process).

Claims

An inner cap that closely contacts the inner surface of the spout of the container, and an inner cap that extends outwardly from the upper end of the outer wall to form a flange portion that corresponds closely to the upper end of the spout; In the container cap assembly comprising a ceiling covering the upper portion of the inner cap and a side wall portion covering the outer circumferential surface of the spout and integrally formed with a female screw corresponding to a male screw formed on the outer circumferential surface of the spout on the inner circumferential surface of the side wall portion. ,

The inner cap has a shape in which the outer edge portion of the flange portion protrudes from the outer wall portion to a thickness greater than the sum of the thread height and the thread height to the male screw,

The outer cap is formed by forming a projection protruding from the top of the inner peripheral surface to the position proximate to the outer peripheral surface of the spout along the circumference at intervals that the flange portion can be inserted,

The inner cap and the outer cap container closure assembly, characterized in that the outer edge portion of the flange portion is sandwiched between the bottom of the ceiling of the outer cap and the projection is made mutually.
The method of claim 1,

The outer cap is made of a synthetic resin material,

The protrusion is made of an annular body along the inner circumference of the outer cap,

The inner cap and the outer cap is coupled to the container cap assembly, characterized in that by using the properties of restoring the shape of the inner cap by fitting the flange portion between the ceiling bottom surface of the outer cap and the upper surface of the projection.
The method of claim 1,

The outer cap is made of a metal plate, the container cap assembly, characterized in that formed in the shape pressed inward along the outer circumferential surface of the outer cap.
The method of claim 3, wherein

The protrusion cap container cap assembly, characterized in that formed in a plurality of numbers arranged at intervals along the outer circumference of the outer cap.
The method of claim 4, wherein

The protrusion is pressed so that an upper side is cut inward from the outer side of the outer cap to cover the edge portion of the bottom surface of the flange portion, and at least a lower side of both sides or the lower side of the protrusion is formed in a curved shape as the side wall portion of the outer cap is pressed. Container closure assembly, characterized in that.
The method according to any one of claims 1 to 5,

The inner cap is formed by forming a plate-shaped support plate extending to connect the lower end portion of the outer wall portion, the bottom surface of the support plate by the outer wall portion is more than the bottom position of the side wall portion of the outer cap relative to the ceiling surface of the outer cap And a boss on the top surface of the support plate and a magnet in the boss.
The method of claim 6,

The boss is to be in the position where the upper part is in contact with the bottom surface of the ceiling of the outer cap, it is made of a partition wall formed inside the middle portion in the height direction,

The magnet is a container stopper assembly, characterized in that the installation is made by inserting at least inside the upper and lower sides of the boss with an interference fit.
The method of claim 6,

The bottom surface of the flange portion is pressed against the top surface of the snout at least one or more of the top surface or the top edge portion of the spout along the circumference of the flange or fitted correspondingly between the inner end of the protrusion and the outer edge of the top surface of the spout Container closure assembly, characterized in that formed by further forming an annular fitting protrusion.