Refillable container

Abstract

The contents container comprises an outer container that includes a pump assembly and has a storage space inside, and an inner container that contains the contents, is housed in the storage space of the outer container, and is detachably connected to the outer container, the bottom of which is open, and the inner container can be inserted into or removed from the storage space via the open bottom of the outer container.

Description

Technical Field

[0001] The present invention relates to a container for contents that is easy to refill. More specifically, the present invention relates to a container including a pump assembly, in which an inner container can be easily attached to and detached from an outer container, and the contents can be easily refilled.

Background Art

[0002] Generally, a jar-type cosmetic container for storing and using cosmetics such as cream has been simply configured such that after the cosmetics stored in the inner container are used up, the user discards the entire cosmetic container and purchases a new cosmetic container for use.

[0003] Therefore, the price of the container is included in the purchase of cosmetics, which causes an economic burden on consumers. In addition, with the use of cosmetics, the entire cosmetic container needs to be reproduced, resulting in problems such as environmental pollution due to wasteful use of resources.

[0004] Furthermore, in recent years, products applying an airless pump structure to a jar-type cosmetic container have been sold so that the contents can be used up to the last drop. However, when the inner container is configured to be removable from the outer container with the airless pump structure applied, the number of parts increases, the structure becomes complicated, and the production efficiency decreases. In addition, in the process of removing the inner container from the outer container, the parts of the inner container adhere to the parts of the outer container and detach, so it is technically difficult to configure it as a refillable type. Therefore, in a container for contents including a pump assembly, it is desired to develop a structure in which only the inner container can be refilled while the pump assembly continues to be used.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention was created to solve the above problems, and its object is to provide a container for contents that is easy to refill, because in a container in which a pump assembly is accommodated, an inner container for accommodating the contents can be easily attached to and detached from an outer container.

[0006] The technical problems that the present invention seeks to solve are not limited to the technical problems described above, and other technical problems not mentioned should be clearly understood by a person with ordinary skill in the art to which this disclosure pertains from the following description. [Means for solving the problem]

[0007] A contents container is provided according to one embodiment of the present invention. The contents container includes an outer container having a storage space inside, which includes a pump assembly, and an inner container that stores contents and is housed in the storage space of the outer container, but is detachably coupled to the outer container, wherein the bottom of the outer container is open, and the inner container can be fitted into or removed from the storage space via the open bottom of the outer container. [Effects of the Invention]

[0008] According to embodiments of the present invention, the contents container of the present invention has the advantage that the inner container containing the contents can be easily and conveniently removed from the outer container to which the airless pump is applied, making it easy to refill the contents. This allows for the recycling of the outer container (pump assembly), which reduces the production cost of the container, and thus reduces the burden on consumers. Furthermore, it reduces the amount of resources wasted and prevents environmental pollution from waste materials, thereby providing an environmentally friendly product.

[0009] Furthermore, the contents container according to one embodiment of the present invention is configured such that the components of the inner container and the components of the outer container do not adhere to each other, thereby preventing the phenomenon of the components of the inner container detaching when the inner container is removed from the outer container after the contents have been used up.

[0010] Furthermore, in the contents container according to one embodiment of the present invention, the pump assembly is not exposed to the outside when refilling the contents, thus minimizing contamination. Moreover, the user can check the remaining amount of contents when refilling, allowing them to use the contents completely without waste.

[0011] Furthermore, the contents container according to one embodiment of the present invention is made from a single material, making it easy to separate and recycle, and thus having the advantage of being environmentally friendly.

[0012] The effects obtained through the present invention are not limited to those described above, and other effects not mentioned should be readily apparent to a person with ordinary skill in the art to which this disclosure belongs from the following description. [Brief explanation of the drawing]

[0013] [Figure 1] This is a front view showing a container for contents related to one embodiment of the present invention. [Figure 2] This figure shows a state in which the outer container and inner container of a contents container according to one embodiment of the present invention are separated. [Figure 3] This is an exploded view showing the outer container of a contents container according to one embodiment of the present invention. [Figure 4] This is an exploded view showing the inner container of a contents container according to one embodiment of the present invention. [Figure 5] This is a cross-sectional view showing a cross-section of a contents container according to one embodiment of the present invention. [Figure 6] This is a cross-sectional view showing a state in which the inner container of a contents container according to one embodiment of the present invention is coupled to the outer container. [Figure 7] This is a cross-sectional view showing the operation process of a contents container according to one embodiment of the present invention and the state in which the contents container is removed from the outer container after all the contents have been used up.

[0014] In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

BEST MODE FOR CARRYING OUT THE INVENTION

[0015] According to one embodiment, it includes a pump assembly, an outer container provided with an accommodation space inside, and an inner container that contains the content and is accommodated in the accommodation space of the outer container but is detachably coupled to the outer container. The lower surface of the outer container is open, and the inner container may be inserted into or removed from the accommodation space through the open lower surface of the outer container.

[0016] Also, according to one embodiment, a fastening structure may be formed on at least one of the outer container or the inner container so that the inner container is accommodated in the accommodation space and coupled to the outer container, and the fastening structure may be a screwing structure.

[0017] Furthermore, according to one embodiment, the pump assembly may be an airless pump.

[0018] Furthermore, according to one embodiment, the outer container may include an outer container body that forms the accommodation space, a housing that accommodates the pump assembly, and a button portion that transmits an external force to the pump assembly.

[0019] Furthermore, according to one embodiment, the outer container body may be formed of a transparent or translucent material.

[0020] Furthermore, according to one embodiment, the housing may include a hollow portion that accommodates at least a part of the pump assembly inside, and at least two or more side walls that are spaced apart from the hollow portion toward the outside. At least a part of the inner container may be inserted into the space between at least one or more side walls and the side walls, and the inner container and the outer container may be coupled.

[0021] Furthermore, according to one embodiment, the inner container may include an inner container body for accommodating the contents, an upper end of the inner container body including a fastening structure for coupling with the outer container, and a piston that moves upward while moving the contents as the pressure of the inner container body changes.

[0022] Furthermore, according to one embodiment, at least one or more stopper protrusions may be formed at the upper end of the inner container body, and a stopper groove corresponding to the stopper protrusion may be formed on one side of the outer container, so that when the inner container is fastened to the outer container, the stopper protrusion may fit into the stopper groove to transmit sound or sensitivity.

[0023] Furthermore, according to one embodiment, the upper end of the inner container body may have a second diameter that is smaller than a first diameter that is the maximum diameter of the inner container body.

[0024] Furthermore, according to one embodiment, the inner container may include a lower cap formed to have a diameter larger than that of the inner container body at the lower end and protruding outside the inner container body, and when the inner container is inserted into the outer container, the lower cap may be continuous with the outer surface of the outer container to form the appearance of the container.

[0025] Furthermore, according to one embodiment, at least one region of the upper surface of the piston may be formed in a shape corresponding to the shape of at least one region of the lower surface of the pump assembly.

[0026] [[ID=第十九]] In addition to these, according to one embodiment, the outer container and the inner container may be formed of the same type of material.

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that they can be easily implemented by a person with ordinary skill in the art to which this disclosure pertains. However, the present invention can be embodied in various different forms and is not limited in any way to the embodiments described herein. In the drawings, parts unrelated to the description have been omitted in order to clearly illustrate this disclosure, and the same parts are denoted by the same reference numerals throughout the specification.

[0028] In this disclosure, while considering the functions of the present invention, we have selected as many commonly used terms as possible. However, this may vary depending on the intentions of engineers in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in this invention should not be merely names of terms, but should be defined based on the meaning of the terms and the overall content of the present invention.

[0029] Furthermore, while phrases such as "first" and "second" can be used to describe various components, it goes without saying that these components are not limited in any way by these phrases. These phrases are used simply to distinguish one component from another.

[0030] Throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected" but also cases where they are "indirectly connected" with other components in between. Furthermore, when a part is described as "containing" a certain component, this does not mean that other components are excluded, unless otherwise specified, and it means that it may contain other components as well.

[0031] The phrases "in one embodiment" and similar expressions found in multiple places in this disclosure do not necessarily all refer to the same embodiment.

[0032] Embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0033] Figure 1 is a front view showing a contents container according to one embodiment of the present invention, and Figure 2 is a diagram showing the contents container according to one embodiment of the present invention in a separated state, with the outer container and inner container.

[0034] As shown in Figures 1 and 2, the contents container 1000 may include an inner container 100, an outer container 200, and a top cap 300.

[0035] The outer container 200 has an internal storage space in which the inner container 100 can be housed. Specifically, the outer container 200 may have an open bottom and an internal storage space formed on the side walls. The top cap 300 is attached to the top of the outer container 200 to seal the outer container.

[0036] The inner container 100 contains the contents and may be inserted into or removed from the outer container 200 through the open bottom surface of the outer container 200. Specifically, the inner container 100 is detachably connected to the outer container 200. The inner container 100 is inserted through the bottom surface of the outer container 200 and housed in the storage space of the outer container 200, and after the contents have been used up, it can be removed again through the bottom surface of the outer container 200 and replaced with a new inner container 100.

[0037] For this purpose, fastening structures for joining the inner container 100 and the outer container 200 may be formed on one side. In one embodiment, the inner container 100 and the outer container 200 may be joined by screwing. For example, a screw thread may be formed on the outside of the upper end of the inner container 100, and a corresponding structure may be formed on the inner surface of the outer container 200, and fastening may occur as the inner container 100 and the outer container 200 rotate relative to each other. By rotating the outer container 200 and the inner container 100 relative to each other, the user can easily fasten the inner container 100 to the outer container 200 or remove the inner container 100 from the outer container 200.

[0038] The contents contained in the inner container 100 may include liquid or gel-type cosmetics. However, the present invention is not limited thereto, and can contain a wide variety of contents such as creams, lotions, sunscreens, essences, BB creams, makeup bases, foundations, CC creams, skin cleansers, shampoos, conditioners, or dyes.

[0039] According to one embodiment of the present invention, the outer container 200, the inner container 100, and the top cap 300 may be formed from the same material. For example, they may be made of polypropylene (PP) resin. However, the present invention is not limited thereto, and a wide variety of materials can be used.

[0040] As a result, the inner container 100, outer container 200, and top cap 300 can be disposed of as a single unit without the need to separate their components. Furthermore, at least one of the inner container 100, outer container 200, and top cap 300 can be disposed of while still attached to each other, which has the advantage of being easy to recycle.

[0041] Figure 3 is an exploded view showing the outer container of a contents container according to one embodiment of the present invention, and Figure 4 is an exploded view showing the inner container of a contents container according to one embodiment of the present invention. Figure 5 is a cross-sectional view showing a cross-section of a contents container according to one embodiment of the present invention. The following explanation will be based on Figures 3 to 5.

[0042] Referring to Figure 3, the outer container 200 may include the outer container body 210, the housing 220, the pump assembly 230, and the button part 240.

[0043] The outer container body 210 is formed in a cylindrical shape with the top and bottom open, and includes a storage space S inside in which the inner container 100 can be accommodated. The shape of the outer container body 210 is not limited in any way and can be formed in various ways.

[0044] In one embodiment, at least a portion of the outer container body 210 may be formed from a transparent or translucent material. This allows the outer surface of the inner container 100 housed in the outer container 200 to be visible. When the outer surface of the inner container 100 is colored or patterned, the outer surface of the inner container 100 can be seen from the outside, allowing for visual differentiation of the product.

[0045] The housing 220 is a component capable of housing and supporting the pump assembly 230 inside, and may be coupled to the upper end of the outer container body 210. The housing 220 may be coupled so as to enclose the upper end of the outer container body 210, with the pump assembly 230 coupled inside.

[0046] In one embodiment, the housing 220 may include a hollow portion 224 in which a hollow is formed in the center and which houses at least a part of the pump assembly 230 inside.

[0047] In one embodiment, the housing 220 may include at least one or more side walls 221, 222, an outer wall 223 and connecting portions connecting them, around the hollow portion 224. The side walls 221, 222 and the outer wall 223 may be formed spaced apart from the hollow portion 224 toward the outside.

[0048] In one embodiment, the housing 220 includes at least two or more side walls 221, 222 spaced apart from the hollow portion 224, and at least a portion of the inner container 100 may be fitted into the space between at least one or more side walls (for example, the first side wall 221 and the second side wall 222). A coupling structure for coupling with the inner container 100 may be formed on the outer surface of at least one side wall of the housing 220, and the inner container 100 may be detachably coupled to it. The coupling structure may be a screw structure, but the present invention is not limited thereto. This makes it possible to couple or separate the inner container 100 from the side wall of the housing 220.

[0049] In one embodiment, at least a portion of the outer container body 210 may be fitted between the side wall 222 and the outer wall 223 of the housing 220. A coupling structure for coupling with the outer container body 210 is formed on at least a portion of the side wall 222 or the outer wall 223 of the housing 220, allowing it to be coupled with the outer container body 210. As the coupling structure, known coupling structures in the industry such as protrusions and grooves or undercut structures can be employed.

[0050] In one embodiment, the outer wall 223 of the housing 220 may be coupled to the upper cap 300. A coupling structure for coupling to the upper cap 300 is formed on the outer surface of the outer wall 223 of the housing 220, making it possible to couple or separate the upper cap 300.

[0051] The pump assembly 230 is a component that receives external force from the user, causing a change in internal pressure, thereby allowing contents to flow in and out, and may be coupled to and supported by the housing 220. The pump assembly 230 of the present invention is preferably an airless pump structure. The pump assembly 230 may also be a pump mechanism known in the industry, such as a cylinder, seal cap, piston rod, stem, elastic member, etc.

[0052] In one embodiment, the elastic member 231 may be formed in a bellows type. In an embodiment, at least a portion of the elastic member 231 may be made from a soft plastic material. Examples include polyether ether ketone (PEEK), polycarbonate (PC), polyoxymethylene (POM), polyketone (POK), polybutylene terephthalate (PBT), polypropylene (PP), polyethylene (PE), polyoxypropylene (POP), elastomer, polyolefin elastomer (POE), copolymer, ethylene octene / butene copolymers, etc. However, the present invention is not limited to these. By being made from a soft plastic material in this way, the elastic member 231 is made easier to manufacture and production costs can be reduced compared to conventional metal springs. Furthermore, the present invention is environmentally friendly because it eliminates the problem of separate disposal from other components of the pump assembly 230. In an embodiment, the elastic member may be manufactured by injection molding. Therefore, it is possible to provide even more stable performance compared to cases using spray molding or the like. However, the shape and configuration of the elastic member 231 are merely illustrative examples, and various shapes and configurations can be applied depending on the embodiment to which the present invention is applied.

[0053] Since the other structures constituting the pump assembly 230 can be constructed in the same way as known pump structures, a detailed explanation of them will be omitted.

[0054] The button portion 240 is the part that is pressed to discharge the contents and may constitute the upper surface of the outer container 200. The button portion 240 is positioned on the upper part of the pump assembly 230, and by pressing the button portion 240, an external force is applied to the pump assembly 230, allowing the contents to be discharged. The button portion 240 may have an opening 241 for discharging the contents. The opening 241 of the button portion 240 communicates with the flow path through which the contents of the pump assembly 230 move, allowing the contents contained in the inner container 100 to be discharged to the outside through the opening 241. In one embodiment, a nozzle 242 is connected to the opening 241, allowing the amount of contents discharged to be adjusted.

[0055] As shown in Figure 4, the inner container 100 may include an inner container body 102 and a piston 120 for pushing up the contents contained in the inner container 100.

[0056] The inner container body 102 is a component that contains contents, and may include a fastening structure 101a at the upper end 101 of the inner container body for connecting to the outer container 200. For example, the fastening structure 101a may be in the shape of a screw thread. In this case, since the inner container body 102 can be fastened to the outer container 200 by screwing, the inner container 100 can be easily rotated to remove it from the outer container 200 or fastened to the outer container 200.

[0057] In one embodiment, at least one stopper projection 103a may be formed on the upper end 101 of the inner container body 102. A stopper groove 220a corresponding to the stopper projection 103a is formed on one side of the outer container 200 (specifically, the housing 220), so that when the inner container 100 is tightened to the outer container 200, the stopper projection 103a fits into the stopper groove 220a, producing a clicking sound or conveying a tightening sensation. This allows the user to intuitively determine that the inner container 100 has been tightened to the outer container 200.

[0058] The position of the stopper groove and projection is not limited in any way; they can be used without restriction as long as it is in the area where the outer container 200 and the inner container 100 come into contact.

[0059] The piston 120 can lift the contents by moving upward due to changes in the internal pressure of the inner container body 102. The piston 120 moves in close contact with the inner wall of the inner container body 102.

[0060] In one embodiment, the upper end 101 of the inner container body may be formed to have a second diameter d2 that is even smaller than the first diameter d1, which is the diameter of the inner container body 102. The inner container body 102 is bent as the diameter of the upper end 101 of the inner container body narrows, forming a step. The inner container body 102 and the upper end 101 of the inner container body are connected by the bent portion 103.

[0061] Conventional refillable containers are generally constructed so that the diameter of the inner container body remains constant without change. In this case, when the contents contained in the inner container body 102 are used up, the piston 120 moves to the upper end of the inner container body 102 and comes into close contact with the pump assembly 230. At this time, when the inner container 100 is removed from the outer container 200 for refilling, the piston 120 adheres to the pump assembly 230 of the outer container and detaches from the inner container 100, which is a problem. However, in the contents container according to one embodiment of the present invention, the diameter of the upper end 101 of the inner container body is narrower than that of the inner container body 102, so that a bent portion 103 is formed, and when the inner container 100 is removed from the outer container 200, the piston 120 does not adhere to the outer container 200 and detach, and the inner container 100 can be stably removed together with the inner container 100.

[0062] In one embodiment, the piston 120 moves gradually from the bottom to the top due to the pressure change accompanying the discharge of the contents, while remaining in close contact with the inner wall of the inner container body 102. When the contents are completely used up and the piston 120 has moved upward to the uppermost end of the inner container body 102, the bent portion 103 may prevent the piston 120 from moving upward.

[0063] According to one embodiment, the upper surface of the piston 120 is formed such that at least one area corresponds to the shape of at least one area of ​​the lower surface of the pump assembly 230 and / or housing 220, so that when the piston 120 moves upward to the uppermost end of the inner container body 102, the upper surface of the piston 120 can engage and contact at least one surface of the pump assembly 230 and / or housing 220. This allows the contents to be used completely without any waste.

[0064] In one embodiment, a lower cap 110 may be attached to the lower end of the inner container 100. The lower cap 110 may be attached to the inner container body 102. For example, a connecting projection 102a may be formed on the inner container body 102, and a corresponding connecting groove 110a may be formed on the lower cap 110 so that they engage with each other. If the inner container body 102 has an open shape at the top and bottom, the lower surface of the inner container body 102 may be sealed by the lower cap 110. It is also possible to attach the lower cap 110 to the lower surface of the inner container body 102 in a double configuration.

[0065] In one embodiment, the lower cap 110 may be formed to have a larger diameter than the inner container body 102 and may protrude to the outside of the inner container body 102. The lower cap 110 may also be the area that is gripped when the inner container 100 is rotated. Therefore, when the lower cap 110 protrudes from the inner container body 102, it becomes easier to grip. The user can easily rotate the inner container 100 by gripping the protruding lower cap 110.

[0066] In one embodiment, the lower cap 110 may be formed to have the same or similar diameter as the outer container body 210. In this case, the lower cap 110 protrudes to the outside of the inner container body 102, but when the inner container 100 is fitted into the outer container 200, it can form the appearance of the container by being continuous with the outer container body 210 on the same surface.

[0067] In one embodiment, the lower cap 110 may be formed from the same material as the inner container body 102, for example, from polypropylene (PP) resin. However, the present invention is not limited thereto. It is also possible to bond the lower cap 110 to the inner container body 102 or to injection mold the lower cap 110 integrally with the inner container body 102.

[0068] In one embodiment, a refill cap 130 may be attached to the top of the inner container 100. The refill cap 130 serves to seal the inner container 100, but is removed when the inner container 100 is attached to the outer container 200. The refill cap 130 may be made of the same material as the inner container body 102, for example, a polypropylene (PP) resin. However, the present invention is not limited thereto. Conventionally, because the inner container was sealed by a seal, there was a risk of the contents leaking, and it could not be seen as a complete product, resulting in an untidy and unattractive appearance. According to one embodiment of the present invention, the refill cap 130 attached to the top of the inner container 100 not only looks neat and tidy, but also has the advantage of being able to seal the contents even more completely.

[0069] Figure 6 is a cross-sectional view showing the state in which the inner container of a contents container according to one embodiment of the present invention is connected to the outer container, and Figure 7 is a cross-sectional view showing the operation process of a contents container according to one embodiment of the present invention and the state in which the inner container is removed from the outer container after the contents have been used up. Figure 7(a) shows the state in which the inner container and the outer container are connected, Figure 7(b) shows the state in which the contents are dispensed by pressing the button on the outer container, and Figure 7(c) shows the state in which the inner container is removed from the outer container for refilling.

[0070] As shown in Figures 6 and 7, the inner container 100 is connected to the outer container 200 via the open bottom surface of the outer container 200. At this time, the refill cap 130 of the inner container 100 is removed. The inner container 100 is housed in the storage space S of the outer container 200 and can be connected to the outer container 200 by rotating the lower end (lower cap 110) of the inner container 100 relative to the outer container body 210. At this time, a click sound or sensation is transmitted as the stopper projection 103a of the inner container 100 engages with the stopper groove 220a of the housing 220, allowing the user to intuitively recognize that tightening is complete.

[0071] With the outer container 200 and the inner container 100 joined together, the contents can be dispensed by pressing the button portion 240 of the outer container 200. When the button portion 240 is pressed, the pump assembly 230 is activated, and the contents are dispensed. This changes the pressure inside the inner container 100, causing the piston 120 to move upward. When the piston 120 moves upward to the uppermost end of the inner container body 102, the upper surface of the piston 120 can be brought into close contact with the pump assembly 230 and the lower surface of the housing 220. The contents are dispensed completely, and the upward movement of the piston 120 is stopped by the bent portion 103.

[0072] Once the contents of the inner container 100 are used up, the user can remove the inner container 100 from the outer container 200 by rotating the lower cap 110 of the inner container 100 relative to the outer container 200. When removing the inner container 100 from the outer container 200 for refilling, the pump assembly 230 may remain housed in the outer container 200, with only the inner container 100 and piston 120 being removed. This ensures that the pump assembly 230 is not exposed to the outside when refilling the inner container, minimizing contamination, and allowing the user to check the remaining amount of contents inside the inner container 100.

[0073] Furthermore, since the second diameter d2, which is the diameter of the opening of the inner container 100, is even narrower than the first diameter d1, which is the diameter of the inner container body 102, when replacing the inner container 100, the piston 120 is in close contact with the pump assembly 230, preventing the piston 120 from detaching from the inner container 100. In other words, by forming the bent portion 103 in the inner container body 102, the piston 120 can be refilled stably without detaching from the inner container 100 when replacing the inner container 100.

[0074] When the user has used up the contents, they can remove the inner container 100 from the outer container 200, remove the refill cap 130 from the new inner container 100, and then tighten it onto the outer container 200 for use.

[0075] The optimal embodiments have been disclosed in the drawings and specification. While specific terms have been used, these terms are solely for the purpose of clearly describing the invention and are not intended to limit its meaning or the scope of the claims. Therefore, a person with ordinary skill in the art to which the invention pertains should understand that various modifications and equivalent other embodiments are possible. Thus, the true technical scope of protection of the invention should be defined by the appended claims. [Explanation of Symbols]

[0076] 1000: Contents container 100: Inner container 101: Upper end of inner container body 101a: Fastening structure 102:Inner container body 102a: Combination protrusion 103: Folding part 103a: Stopper protrusion 110: Bottom cap 110a: Binding groove 120: Piston 130: Refill Cap S: Containment space 200: Outer container 210: Outer container body 220: Housing 220a: Stopper groove 221, 222: Side wall 223: Exterior wall 224: Hollow part 230: Pump assembly 231: Elastic member 240: Button section 241:Aperture 242: Nozzle 300: Top cap

Claims

1. The contents container, An outer container including a pump assembly, with an internal storage space provided, An inner container that houses contents, is housed in the storage space of the outer container, and is detachably connected to the outer container, Equipped with, The outer container has an open bottom, The inner container is a container for contents that is housed in the storage space through the open lower surface of the outer container.

2. In order for the inner container to be housed in the containment space and coupled with the outer container, a fastening structure is formed on at least one of the outer container or the inner container. The contents container according to claim 1, wherein the fastening structure is a screw-type structure.

3. The contents container according to claim 1, wherein the pump assembly is an airless pump.

4. The aforementioned outer container is The outer container body that forms the aforementioned containment space, A housing for the pump assembly, The pump assembly includes a button that transmits external force, A contents container according to claim 1, including the following.

5. The contents container according to claim 4, wherein the outer container body is formed from a transparent or translucent material.

6. The aforementioned housing is A hollow portion that houses at least a part of the pump assembly inside, At least two or more side walls are spaced apart from the hollow portion toward the outside, Includes, The contents container according to claim 4, wherein at least a portion of the inner container is fitted into the space between at least one or more side walls, and the inner container and the outer container are joined together.

7. The aforementioned inner container is The main body of the inner container that holds the contents, The upper end of the inner container body includes a fastening structure for connecting with the outer container, A piston moves the contents upward as pressure changes in the main body of the container, A contents container according to claim 1, including the following.

8. The contents container according to claim 7, wherein at least one stopper projection is formed on the upper end of the inner container body, and a stopper groove corresponding to the stopper projection is formed on one side of the outer container, and when the inner container is tightened to the outer container, the stopper projection fits into the stopper groove to transmit sound or sensitivity.

9. The contents container according to claim 7, wherein the upper end of the inner container body has a second diameter that is smaller than the first diameter, which is the maximum diameter of the inner container body.

10. The inner container includes a lower cap formed at its lower end to have a diameter even larger than that of the inner container body and protruding to the outside of the inner container body. The contents container according to claim 7, wherein the lower cap, when the contents container is fitted into the outer container, is continuous with the outer surface of the outer container and forms the appearance of the container.

11. The contents container according to claim 7, wherein at least one region of the upper surface of the piston is formed in a shape corresponding to the shape of at least one region of the lower surface of the pump assembly.

12. The contents container according to claim 1, wherein the outer container and the inner container are formed from the same material.

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