KR20210123891A - Coupling structurre of double-tube for toiletry and double-tube for toiletry having the coupling structurre - Google Patents

Abstract

The present invention relates to a coupling structure of double tube portions for cosmetics and double tube portions of a cosmetic container including the same. According to the present invention, the coupling structure of double tube portions for cosmetics comprises: an inner container-discharging portion forming an upper end of an inner tube container, in which a first contents-discharging path is formed in the central part; an outer container-discharging portion forming an upper end of an outer tube container, and having a second contents-discharging path, through which the contents of the outer tube container are discharged, formed in a space between the inner container-discharging portion; an opening/closing cap-discharging portion covering the inner container-discharging portion and the outer container-discharging portion and having first and second discharging holes partitioned and communicating with the first contents-discharging path and the second contents-discharging path, respectively; a closing cap portion having one side rotatably coupled to the upper end of the cover cap, and configured to open and close the opening/closing cap-discharging portion; a first coupling portion formed in a space between the inner container-discharging portion and the outer container-discharging portion, and configured to couple the inner container-discharging portion and the outer container-discharging portion; a second coupling portion formed in a space between the inner container-discharging portion and the opening/closing cap, and configured to couple the inner container-discharging portion and the opening/closing cap; and a third coupling portion formed in a space between the outer container-discharging portion and the opening/closing cap, and configured to couple the outer container-discharging portion and the opening/closing cap.

Description

Coupling structure of double tube for cosmetics and double tube for cosmetic products including the same

The present invention relates to a combined structure of a double tube for cosmetics and a double tube for cosmetic products including the same. Combination structure of double tube for cosmetics that can be partitioned and combined so that the contents do not mix at the upper end of the product, and different contents can be used at the same time when in use, and can securely cover and seal the outlet of both tube containers when not in use It is about the double tube.

In general, a tube-type cosmetic container is mainly used to effectively store cream-type cosmetics such as sunscreen, but is widely used as a container to effectively store the contents of various detergents as well as cosmetics, as well as cosmetics. As it is made of a tube, the contents are discharged to the outside through the outlet by artificially squeezing the surface from the outside.

The tubular cosmetic container as described above is made of various materials such as aluminum, laminate, and synthetic resin depending on the contents to be stored.

Since the conventional tubular cosmetic container is mainly manufactured by using a polyethylene resin, it has an advantage in that it has excellent external restoration properties that are restored to a circular shape when the tube is compressed due to the characteristics of the material.

However, since there is no double container in the conventional tube-type cosmetic containers, only single-color cosmetics and single-quality cosmetics can be put in. Because the cosmetic color displayed outside the container is only a single color, it was not possible to increase the aesthetics of the appearance by color and Cosmetics could not be withdrawn and used at once.

Republic of Korea Registered Utility Model Gazette Office 1994-0001727 (1994.03.24. Announcement) Republic of Korea Registered Utility Model Gazette 20-0448108 (2010.03.18. Announcement) Republic of Korea Registered Utility Model Publication 20-0455690 (2011.09.20. Announcement) Republic of Korea Registered Utility Model Publication 20-0301248 (2003.01.24. Announcement)

Therefore, the present invention for solving the above-mentioned problems of the prior art can accommodate cosmetic materials or cosmetic materials of different materials or similar materials in each tube container, and divide and couple the contents so that the contents are not mixed at the upper end of the two tube containers. An object of the present invention is to provide a double tube for cosmetics that can simultaneously use different contents when used, and a double tube for cosmetics including the same.

In addition, the present invention can securely cover and seal the discharge ports of the two tube containers when not in use, and can be formed so that the outer contents and the inner tube container can be seen to have a more beautiful appearance, thereby attracting the attention of consumers and leading to consumption. An object of the present invention is to provide a double tube for cosmetics that can increase sales by providing a combined structure of a double tube for cosmetics and a double tube for cosmetics including the same.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to one aspect of the present invention for achieving the above objects and other features of the present invention, a double tube consisting of an inner tube container and an outer tube container accommodating the inner tube therein, and the inner tube container and the outer tube container In the coupling structure for coupling the inner tube container, the outer tube container, and the opening/closing cap by being formed between the opening and closing caps provided to be opened and closed at the upper end of the The inner container discharge unit is formed; an outer container discharge part forming an upper end of the outer tube container and having a second content discharge path through which the contents of the outer tube container are discharged between the inner container discharge part; an opening/closing cap discharging part covering the inner container discharging part and the external container discharging part, and having a first discharge hole and a second discharge hole which are partitioned and communicated with each of the first contents discharge path and the second contents discharge path; a closing cap part having one side rotatably coupled to the upper end of the cover cap to open and close the opening and closing cap outlet; a first coupling part formed between the inner container discharge part and the outer container discharge part and configured to couple between the inner container discharge part and the outer container discharge part; a second coupling part formed between the inner container discharge part and the opening/closing cap and configured to couple the inner container discharge part and the opening/closing cap; and a third coupling part formed between the outer container discharge part and the opening/closing cap and configured to couple between the external container discharge part and the opening/closing cap.

According to another aspect of the present invention, the inner tube container in the form of a tube formed by closing the lower end; an outer tube container having a closed end and accommodating the inner tube therein; an opening/closing cap operably provided at upper ends of the inner tube container and the outer tube container; an inner container discharge part forming an upper end of the inner tube container and having a first content discharge path formed in the central part; an outer container discharge part forming an upper end of the outer tube container and having a second content discharge path through which the contents of the outer tube container are discharged between the inner container discharge part; an opening/closing cap discharging part covering the inner container discharging part and the external container discharging part, and having a first discharge hole and a second discharge hole which are partitioned and communicated with each of the first contents discharge path and the second contents discharge path; a closing cap part having one side rotatably coupled to the upper end of the cover cap to open and close the opening and closing cap outlet; a first coupling part formed between the inner container discharge part and the outer container discharge part and configured to couple between the inner container discharge part and the outer container discharge part; a second coupling part formed between the inner container discharge part and the opening/closing cap and configured to couple the inner container discharge part and the opening/closing cap; and a third coupling part formed between the outer container discharge part and the opening/closing cap and configured to couple between the external container discharge part and the opening/closing cap.

In the present invention, the inner container discharge portion is integrally formed with the upper end of the inner tube container, the central portion is made of a cylindrical shape in which the first contents discharge path is formed, the outer container outlet is the upper end of the outer tube container a cylindrical portion integrally formed with the , and a plate-shaped annular ring portion formed inside the upper end of the cylindrical portion and having the second contents discharge path formed, the upper end of the inner container outlet passing through the annular ring portion It may be provided to be exposed to the upper side of the ring part.

In the present invention, the opening and closing cap discharge portion, the first cylindrical portion formed to surround the outer surface of the cylindrical portion of the outer container outlet; a second cylindrical portion formed inside the first cylindrical portion, having the same diameter as the cylindrical portion of the outer container outlet, and having a lower end in contact with the upper surface of the edge of the cylindrical portion of the outer container outlet; a third cylindrical part of the upper surface closure which is formed to protrude toward the upper side from the central part of the opening and closing cap; a fourth cylindrical portion protruding downwardly from the central portion of the third cylindrical portion and fitted to the upper end of the inner container outlet; and a second discharge hole formed in the second cylindrical portion around the fourth cylindrical portion and communicating with the second content discharge path.

In the present invention, the closing cap portion, when the closing cap portion closes the cover cap, a coupling ring portion formed on the inner surface to be in contact with the outer surface of the third cylindrical portion, and the inner surface so as to be fitted into the first discharge hole A first fitting protrusion formed in, and a second fitting protrusion formed on the inner surface to be fitted to the second outlet hole, wherein the third cylindrical portion and the inner surface of the coupling ring portion are opposite to each other, at least one A seating protrusion and a seating groove may be formed.

In the present invention, the first coupling portion is formed to protrude from the outer periphery of the upper end of the inner container discharge portion and is formed as a locking jaw fixed to the inner edge side of the annular ring portion of the outer container discharge portion, and the second coupling portion is the opening and closing cap It is formed to protrude from the lower outer periphery of the fourth cylindrical part of the discharge part and is formed as a locking jaw fixed to the upper end of the inner container outlet, and the third coupling part is the outer surface of the outer container outlet and the inner surface of the first cylindrical part of the opening and closing cap outlet. Is formed in the outer container outlet and the first cylindrical portion may be made of a threaded coupling portion is formed to be able to be threadedly coupled.

In the present invention, the lower surface of the locking jaw of the first coupling part and the upper surface of the inner edge side of the annular ring part are formed with a concave-convex part that can be unevenly coupled between the lower surface of the locking jaw and the upper surface of the inner edge side of the annular ring part, Concave-convex portions that can be fitted with each other may be formed on the opposite surface or the contact surface between the locking protrusion and the inner container outlet of the two coupling portions.

According to the coupling structure of the cosmetic double tube according to the present invention and the cosmetic double tube including the same, the following effects are provided.

First, the present invention has the effect of simultaneously using different types of cosmetics by accommodating and using cosmetic materials or cosmetic materials of different or similar materials in each of the double tube containers.

Second, the present invention has an effect that different types of cosmetics do not mix because it can be reliably partitioned so that the contents are not mixed at the upper end of the two tube containers.

Third, the present invention has the effect of securing the storability by being able to securely cover and seal the discharge ports of the two tube containers when not in use.

Fourth, the present invention can be formed so that the outer contents and the inner tube container are visible, so that it has a more beautiful appearance, thereby attracting the attention of consumers and leading to consumption, thereby increasing sales.

Effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a perspective view showing a cosmetic double tube including a coupling structure of the cosmetic double tube according to the present invention.
2 is a partially cut-away perspective view showing the configuration of the coupling part of the double tube for cosmetics according to the present invention by cutting it in part.
3 is an enlarged perspective view of a partial cutout showing the configuration of the coupling part of the double tube for cosmetics according to the present invention.

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention can make various changes and can have various embodiments, and the examples described below and shown in the drawings are not intended to limit the present invention to specific embodiments. No, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms such as "...unit", "...unit", "...module", etc. described in the specification mean a unit that processes at least one function or operation, which includes hardware or software or hardware and It can be implemented by a combination of software.

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, throughout this specification, when a step is located "on" or "before" another step, this means not only when a step is in a direct time-series relationship with another step, but also includes a step of mixing after each step and Likewise, the order of two stages includes the same rights as in the case of an indirect time series relationship in which the time series order can be changed.

Hereinafter, the coupling structure of the cosmetic double tube and the cosmetic double tube including the same according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a cosmetic double tube including a coupling structure of a cosmetic double tube according to the present invention, and FIG. 2 is a partially cutaway perspective view showing the coupling part of the cosmetic double tube according to the present invention by partially cutting out , Figure 3 is an enlarged perspective view of a partial cut-out showing the configuration of the coupling part of the double tube for cosmetics according to the present invention.

The coupling structure of the double tube for cosmetics according to the present invention is, as shown in FIGS. 1 to 3, largely an inner tube container (first tube container) 10; an outer tube container (second tube container) 20; opening/closing cap 30; inner container discharge unit 100; External container discharge unit 200; Opening/closing cap discharge unit 300; Closing cap unit 400; a first coupling part 500; a second coupling unit 600; and a third coupling part 700 .

Specifically, the coupling structure of the cosmetic double tube according to the present invention, as shown in FIGS. A double tube composed of an outer tube container (second tube container) 20, and an opening/closing cap 30 that is operably provided at the upper end of the inner tube container 10 and the outer tube container 20 to open and close the inner tube As a coupling structure for coupling the tube container 10, the outer tube container 20, and the opening/closing cap 30, the upper end of the inner tube container 10 is formed, and the contents discharge path (first contents discharge path) in the center ) (110) is formed the inner container discharge unit 100; The upper end of the outer tube container 20 is formed, and a content discharge path (second content discharge path) 230 through which the contents (the contents of the outer tube container) is discharged is formed between the inner container discharge part 100 and the inner container discharge part 100 . an external container discharge unit 200; The inner container discharging part 100 and the outer container discharging part 200 are covered, and the contents discharging path 110 of the inner container discharging part 100 and the contents discharging path of the external container discharging part 200 ( 230) communicating with each, and having a communication path partitioned from each of the contents discharge path 110 of the inner container discharge unit 100 and the contents discharge path 230 of the outer container discharge unit 200, the communication path A first discharge hole 301 and a second discharge hole 302 through which each of the contents are discharged through the opening and closing cap discharge unit 300 is formed; a closing cap part 400 having one side rotatably coupled to the upper end of the cover cap 30 to open and close the opening and closing cap discharge part 300; a first coupling part 500 formed between the inner container discharge part 100 and the outer container discharge part 200 and configured to couple between the inner container discharge part 100 and the outer container discharge part 200; a second coupling part 600 formed between the inner container discharge part 200 and the opening/closing cap 30 and configured to couple between the inner container discharge part 200 and the opening/closing cap 30; and a third coupling part 700 formed between the outer container discharge part 200 and the opening/closing cap 30 and configured to couple between the external container discharge part 200 and the opening/closing cap 30; is composed

In other words, the cosmetic double tube according to the present invention, as shown in Figs. 1 to 3, a tube-shaped inner tube container (first tube container) 10 in which the lower end is hermetically closed; an outer tube container (second tube container) 20 having a lower end closed and accommodating the inner tube 10 therein; an opening/closing cap 30 operably provided at the upper end of the inner tube container 10 and the outer tube container 20; an inner container discharge unit 100 that forms an upper end of the inner tube container 10, and a contents discharge path (first contents discharge path) 110 is formed in the central portion; The upper end of the outer tube container 20 is formed, and a content discharge path (second content discharge path) 230 through which the contents (the contents of the outer tube container) is discharged is formed between the inner container discharge part 100 and the inner container discharge part 100 . an external container discharge unit 200; The inner container discharging part 100 and the outer container discharging part 200 are covered, and the contents discharging path 110 of the inner container discharging part 100 and the contents discharging path of the external container discharging part 200 ( 230) communicated with each, the contents discharge path 110 of the inner container discharge unit 100 and the contents discharge path 230 of the outer container discharge unit 200 are respectively partitioned, and each of the contents through the communication path The first discharge hole 301 and the second discharge hole 302 through which the opening and closing cap discharge unit 300 is formed; a closing cap part 400 having one side rotatably coupled to the upper end of the cover cap 30 to open and close the opening and closing cap discharge part 300; a first coupling part 500 formed between the inner container discharge part 100 and the outer container discharge part 200 and configured to couple between the inner container discharge part 100 and the outer container discharge part 200; a second coupling part 600 formed between the inner container discharge part 200 and the opening/closing cap 30 and configured to couple between the inner container discharge part 200 and the opening/closing cap 30; and a third coupling part 700 formed between the outer container discharge part 200 and the opening/closing cap 30 and configured to couple between the external container discharge part 200 and the closing cap part discharge part 400; consists of including

The inner tube container 10 and the outer tube container 20 have the same shape as a general tubular cosmetic container or cleansing container, and are formed of a resin material that can be restored to its original shape after pressing the container.

Subsequently, the opening/closing cap 30 is formed in the form of a lid.

Specifically, the opening/closing cap 30 is formed in a cylindrical shape with one surface closed to cover the upper end of the outer tube container 20, and some components of the second coupling part 600 and the third coupling part ( 700) is integrally formed inside, and the cover cap discharge part 300 is integrally formed in the central part. And a closing cap part 400 is formed on one side of the opening and closing cap 30 .

Next, the inner container discharge unit 100 is integrally formed with the upper end of the inner tube container 10, and is formed in a cylindrical shape with a contents discharge path (first contents discharge path) 110 in the center portion. .

Specifically, the inner container outlet 100 is formed as a cylindrical portion having a relatively smaller diameter than the body portion of the inner tube container 10 .

Here, the inner container outlet 100 may be formed in a shape in which the diameter is reduced toward the upper side.

The inner container outlet 100 has some components of the second coupling part 600 coupled to the outer container outlet 200 , and some components of the third coupling part 700 coupled with the closing cap 30 . formed integrally

Next, the outer container outlet 200 includes a cylindrical portion 210 integrally formed with the upper end of the outer tube container 20, and an annular ring portion 220 formed inside the upper end of the cylindrical portion 230, and a content discharge path 230 or a content discharge hole formed in the annular ring part 220 .

The inner container outlet 100 is positioned inside the cylindrical part 210 , and the upper end of the inner container outlet 100 is exposed to the upper side of the annular ring part 220 .

And a first coupling part 500 to be described in detail below is formed between the inner container outlet 100 and the annular ring part 220 .

Next, the opening/closing cap discharge part 300 covers the inner container discharge part 100 and the outer container discharge part 200, and the contents discharge path 110 of the inner container discharge part 100 and Doedoe communicating with each of the contents discharge path 230 of the outer container discharge unit 200, the contents discharge path (first contents discharge path) 110 of the inner container discharge unit 100 and the outer container discharge unit 200 ) is divided and communicated with each of the contents discharge path (second contents discharge path) 230, and a first discharge hole 301 and a second discharge hole 302 through which each of the contents are discharged are formed, is done

Specifically, the opening/closing cap discharge unit 300 is formed on the inner surface of the opening/closing cap 30 , and the first cylindrical portion 310 is formed to surround the outer surface of the cylindrical portion 210 of the outer container outlet 200 . ) and the first cylindrical portion 310 is formed inside, has the same diameter as the cylindrical portion 210 of the outer container outlet 200, and the lower end is formed to be in contact with the upper surface of the edge of the cylindrical portion 210 The second cylindrical portion 320 in which a second communication path 302 is formed between the fourth cylindrical portion 340 and the upper surface closure protruding from the center of the opening and closing cap 30 to the upper side 3 cylindrical portion 330 and a first discharge hole 301 that is formed to protrude downward from the central portion of the third cylindrical portion 330 and communicates with the discharge path 110 of the inner container discharge port 110 in the central portion. ) is formed, the fourth cylindrical portion 340 is formed to be fitted on the inner upper end of the inner container outlet 100, and the fourth cylindrical portion 340 is formed around the first discharge hole 301 of the It consists of a second discharge hole 302 communicating with the second communication path (302).

Reinforcing ribs 311 extending in the longitudinal direction with intervals along the circumferential direction are formed on the outer surface of the first cylindrical part 310 .

And some components of the second coupling part 600 to be described later are formed on the inner surface of the first cylindrical part 310 .

Next, the closing cap part 400 is formed in the form of a cap, one side of which is rotatably coupled to the upper end of the cover cap 30 to open and close the opening and closing cap discharge part 300 .

Here, the closing cap portion 400 is, when the closing cap portion 400 closes the cover cap 30, a coupling ring portion 410 formed on the inner surface to contact the outer surface of the third cylindrical portion 330. ), and a first fitting protrusion (annular fitting protrusion) formed on the inner surface so that when the closing cap part 400 closes the cover cap 30, it is fitted into the first discharge hole 301 (annular fitting protrusion) 420, And when the closing cap part 400 closes the cover cap 30, it further includes a second fitting protrusion 430 formed on the inner surface to be fitted to the second discharge hole 302.

One or more seating projections and seating grooves may be formed on the outer surface of the third cylindrical part 330 and the inner surface of the coupling ring part 410 on opposite surfaces.

Next, the first coupling part 500 is formed between the inner container discharge part 100 and the outer container discharge part 200 to couple between the inner container discharge part 100 and the outer container discharge part 200 . configured to do

Specifically, the first coupling part 500 is formed to protrude from the outer periphery of the upper end of the inner container discharge part 100 to be caught and fixed to the upper surface of the inner periphery of the annular ring part 220 of the outer container discharge part 200 . formed by the chin.

Here, the lower surface of the engaging jaw and the upper surface of the inner edge side of the annular ring part 220, the lower surface of the locking jaw and the upper surface of the inner edge side of the annular ring part 220 may be formed with a concave-convex part that can be concave-convexly coupled. .

Next, the second coupling part 600 is formed between the inner container discharge part 200 and the closing cap part 400 to couple the inner container discharge part 200 and the closing cap part discharge part 200 to each other. is composed

Specifically, the second coupling portion 600 is formed to protrude from the outer edge of the lower end of the fourth cylindrical portion 340 of the opening and closing cap discharge portion 300, the locking jaw fixed to the upper end of the inner container outlet (100) is formed with

Here, the opposite surface or the contact surface between the engaging protrusion and the inner container outlet 110 may be formed with a concave-convex portion that can be fitted with each other.

Next, the third coupling part 700 is formed between the outer container discharge part 200 and the closing cap part 400 to couple the outer container discharge part 200 and the closing cap part discharge part 400 to each other. is composed

Specifically, the third coupling part 700 is formed on the outer surface of the outer container outlet 200 and the inner surface of the first cylindrical part 310 of the opening and closing cap outlet 300 to the outer container outlet 200 and The first cylindrical portion 310 may be formed of a threaded coupling portion that is formed to be threadedly coupled.

According to the combined structure of the double tube for cosmetics and the double tube for cosmetic products including the same according to the present invention as described above, it is possible to accommodate cosmetic materials or cosmetic materials of different or similar materials in each of the double tube containers so that they can be used. It makes it possible to use different cosmetics at the same time, and it is possible to securely divide and combine the contents at the upper end of the two tube containers so that the cosmetics do not mix with each other.

In addition, according to the present invention, when not in use, the discharge port of the two tube containers can be securely covered and sealed to ensure storage, and the outer contents and the inner tube container can be formed so that they have a more beautiful appearance. It has the advantage of increasing sales by attracting the attention of consumers and leading to consumption.

Although the above-described embodiments have been described with reference to the limited drawings, a person skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

The embodiments described in this specification and the accompanying drawings are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed in the present specification are for explanation rather than limitation of the technical spirit of the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be interpreted as being included in the scope of the present invention.

10: inner tube container (first tube container)
20: outer tube container (second tube container)
30: opening and closing cap
100: inner container discharge part
110: contents discharge path (first contents discharge path)
200: external container discharge unit
210: cylindrical part
220: annular ring part
230: contents discharge path (second contents discharge path)
300: opening and closing cap outlet
301: first discharge hole
302: second discharge hole
310: first cylindrical portion
311: reinforcing rib portion
320: second cylindrical portion
330: third cylindrical part
340: fourth cylindrical part
400: closing cap part
410: coupling ring part
420: first fitting projection (annular fitting projection)
430: second fitting projection
500: first coupling part
600: second coupling part
700: third coupling part

Claims (11)

A double tube comprising an inner tube container and an outer tube container for accommodating the inner tube therein, and an opening and closing cap operably provided at the upper end of the inner tube container and the outer tube container, the inner tube container and the outer tube container And in the coupling structure for coupling the opening and closing cap,
an inner container discharge part forming an upper end of the inner tube container and having a first content discharge path formed in the central part;
an outer container discharge part forming an upper end of the outer tube container and having a second content discharge path through which the contents of the outer tube container are discharged between the inner container discharge part;
an opening/closing cap discharging part covering the inner container discharging part and the external container discharging part, and having a first discharge hole and a second discharge hole which are partitioned and communicated with each of the first contents discharge path and the second contents discharge path;
a closing cap part having one side rotatably coupled to the upper end of the cover cap to open and close the opening and closing cap outlet;
a first coupling part formed between the inner container discharge part and the outer container discharge part and configured to couple between the inner container discharge part and the outer container discharge part;
a second coupling part formed between the inner container discharge part and the opening/closing cap and configured to couple the inner container discharge part and the opening/closing cap; and
and a third coupling part formed between the outer container discharge part and the opening/closing cap and configured to couple the external container discharge part and the opening/closing cap.
Combination structure of double tube for cosmetics.
According to claim 1,
The inner container discharge part is formed integrally with the upper end of the inner tube container, and the central part is formed in a cylindrical shape in which the first content discharge path is formed,
The outer container outlet is formed of a cylindrical portion integrally formed with the upper end of the outer tube container, and a plate-shaped annular ring portion formed inside the upper end of the cylindrical portion, the second content discharge path is formed,
The upper end of the inner container outlet is passed through the annular ring portion, characterized in that provided to be exposed to the upper side of the annular ring portion
Combination structure of double tube for cosmetics.
3. The method of claim 2,
The opening and closing cap discharge part,
a first cylindrical portion formed to surround the outer surface of the cylindrical portion of the outer container outlet;
a second cylindrical portion formed inside the first cylindrical portion, having the same diameter as the cylindrical portion of the outer container outlet, and having a lower end in contact with the upper surface of the edge of the cylindrical portion of the outer container outlet;
a third cylindrical part of the upper surface closure which is formed to protrude toward the upper side from the central part of the opening and closing cap;
a fourth cylindrical portion protruding downwardly from the central portion of the third cylindrical portion and fitted to the upper end of the inner container outlet; and
and a second discharge hole formed in the second cylindrical portion around the fourth cylindrical portion and communicating with the second content discharge path.
Combination structure of double tube for cosmetics.
4. The method of claim 3,
The closing cap portion, when the closing cap portion closes the cover cap, a coupling ring portion formed on the inner surface to be in contact with the outer surface of the third cylindrical portion, and a first formed on the inner surface so as to be fitted to the first discharge hole It further comprises a fitting protrusion, and a second fitting protrusion formed on the inner surface so as to be fitted to the second discharge hole,
One or more seating projections and seating grooves are formed on mutually opposite surfaces of the outer surface of the third cylindrical part and the inner surface of the coupling ring part.
Combination structure of double tube for cosmetics.
3. The method of claim 2,
The first coupling portion is formed to protrude from the outer periphery of the upper end of the inner container discharge portion and is formed as a locking jaw that is hooked and fixed to the inner edge side upper surface of the annular ring portion of the outer container discharge portion,
The second coupling portion is formed as a locking jaw protruding from the lower periphery of the fourth cylindrical part of the opening and closing cap discharge part to be hooked and fixed to the upper end of the inner container outlet,
The third coupling portion is formed on the outer surface of the outer container outlet and the inner surface of the first cylindrical portion of the opening and closing cap outlet, characterized in that it is formed of a threaded coupling portion formed so that the outer container outlet and the first cylindrical portion can be threadedly coupled.
Combination structure of double tube for cosmetics.
6. The method of claim 5,
The lower surface of the locking jaw of the first coupling part and the upper surface of the inner edge side of the annular ring part are formed with a concave-convex part that can be coupled between the lower surface of the locking jaw and the upper surface of the inner edge side of the annular ring part,
Wherein a concave-convex portion that can be fitted with each other is formed on an opposite surface or a contact surface between the locking protrusion and the inner container outlet of the second coupling portion.
Combination structure of double tube for cosmetics.
A cosmetic double tube having a coupling structure of the cosmetic double tube according to any one of claims 1 to 6.
An inner tube container in the form of a tube formed by closing the lower end;
an outer tube container having a closed end and accommodating the inner tube therein;
an opening/closing cap operably provided at upper ends of the inner tube container and the outer tube container;
an inner container discharge part forming an upper end of the inner tube container and having a first content discharge path formed in the central part;
an outer container discharge part forming an upper end of the outer tube container and having a second content discharge path through which the contents of the outer tube container are discharged between the inner container discharge part;
an opening/closing cap discharging part covering the inner container discharging part and the external container discharging part, and having a first discharge hole and a second discharge hole which are partitioned and communicated with each of the first contents discharge path and the second contents discharge path;
a closing cap part having one side rotatably coupled to the upper end of the cover cap to open and close the opening and closing cap outlet;
a first coupling part formed between the inner container discharge part and the outer container discharge part and configured to couple between the inner container discharge part and the outer container discharge part;
a second coupling part formed between the inner container discharge part and the opening/closing cap and configured to couple the inner container discharge part and the opening/closing cap; and
and a third coupling part formed between the outer container discharge part and the opening/closing cap and configured to couple the external container discharge part and the opening/closing cap.
Double tube for cosmetics.
9. The method of claim 8,
The inner container discharge part is formed integrally with the upper end of the inner tube container, and the central part is formed in a cylindrical shape in which the first content discharge path is formed,
The outer container outlet is formed of a cylindrical portion integrally formed with the upper end of the outer tube container, and a plate-shaped annular ring portion formed inside the upper end of the cylindrical portion, the second content discharge path is formed,
The upper end of the inner container outlet is provided to pass through the annular ring portion and exposed to the upper side of the annular ring portion,
The opening/closing cap discharge part has a first cylindrical part formed to surround the outer surface of the cylindrical part of the outer container outlet, is formed inside the first cylindrical part, and has the same diameter as the cylindrical part of the outer container outlet, the lower end is A second cylindrical portion formed to be in contact with the upper surface of the edge of the cylindrical portion of the outer container outlet, a third cylindrical portion of top closure formed to protrude upward from the central portion of the opening/closing cap, and the third cylindrical portion in a downward direction from the central portion A fourth cylindrical portion formed to protrude and fitted to the upper end of the inner container discharge port, and a second discharge hole formed in the second cylindrical portion around the fourth cylindrical portion to communicate with the second contents discharge path. characterized by including
Double tube for cosmetics.
10. The method of claim 9,
The closing cap portion, when the closing cap portion closes the cover cap, a coupling ring portion formed on the inner surface to be in contact with the outer surface of the third cylindrical portion, and a first formed on the inner surface so as to be fitted to the first discharge hole A fitting protrusion, and a second fitting protrusion formed on the inner surface to be fitted to the second discharge hole,
The first coupling portion is formed to protrude from the outer periphery of the upper end of the inner container discharge portion and is formed as a locking jaw that is hooked and fixed to the inner edge side upper surface of the annular ring portion of the outer container discharge portion,
The second coupling part is formed as a locking jaw protruding from the lower edge of the fourth cylindrical part of the opening and closing cap discharge part to be caught and fixed to the upper end of the inner container outlet,
The third coupling portion is formed on the outer surface of the outer container outlet and the inner surface of the first cylindrical portion of the opening and closing cap outlet, characterized in that it is formed of a threaded coupling portion formed so that the outer container outlet and the first cylindrical portion can be threadedly coupled.
Double tube for cosmetics.
11. The method of claim 10,
One or more seating projections and seating grooves are formed on mutually opposite surfaces of the outer surface of the third cylindrical part and the inner surface of the coupling ring part,
The lower surface of the locking jaw of the first coupling part and the upper surface of the inner edge side of the annular ring part are formed with a concave-convex part that can be coupled between the lower surface of the locking jaw and the upper surface of the inner edge side of the annular ring part,
Wherein a concave-convex portion that can be fitted with each other is formed on an opposite surface or a contact surface between the locking protrusion and the inner container outlet of the second coupling portion.
Double tube for cosmetics.

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