Contents container

Abstract

A contents container according to one embodiment includes an outer container, a discharge section located at one end of the outer container for discharging contents to the outside, an internal fastening cap fixed inside the outer container, and an inner container for containing contents. The inner container is fitted and fixed inside the outer container via the internal fastening cap and spatially connected to the discharge section, and the inner container can be removed from the internal fastening cap and replaced in the outer container. Many other embodiments can be adopted as can be gleaned from the specification.

Description

Technical Field

[0001] The present invention relates to a container for contents, and more specifically, to a container for contents that is made of the same type of material and is easy to recycle, and in which the inner container can be easily attached to and detached from the outer container so that the contents can be refilled and used.

Background Art

[0002] Conventionally, it has been difficult to adjust the amount of cosmetic material discharged from the container body of a cosmetic container, so there has been a problem that cosmetic materials are wasted. To solve such a problem, a pipette-type container that can discharge the contents in the container in a fixed amount has been developed. Such a pipette-type container generally includes a container body in which the contents are stored, a pipette part that sucks and discharges the contents stored in the container body, and a pressing part that causes a change in the pressure inside the pipette.

[0003] However, such a pipette-type container has a disadvantage in that at least one part is made of a different material from other parts, so when discarding the container, the parts have to be removed from the container and separately discharged. In particular, when the container includes a spring, since most springs are made of a material different from the container body (for example, metal, iron), if the spring is not removed, it is difficult to separately discharge the parts and discard the container.

[0004] In addition, such a pipette-type container has a limit in development as a refillable type in which only the container for storing the contents can be removed from the outer container and replaced because the pipette comes into contact with the contents and the pipette gets dirty.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This invention was devised to solve the above-mentioned problems, and its purpose is to provide a container that is easy to recycle and environmentally friendly, as it is made from materials of the same type.

[0006] Another object of this disclosure is to provide a container for contents that is configured to allow easy attachment and detachment of the inner container from the outer container, so that the inner container can be removed from the outer container and replaced after the contents have been used up.

[0007] The technical problems that this specification seeks to solve are not limited to those described above, and other technical problems not mentioned should be readily apparent to a person with ordinary skill in the art to which this disclosure pertains from the following description. [Means for solving the problem]

[0008] According to one embodiment, the contents container includes an outer container, a discharge section located at one end of the outer container for discharging the contents to the outside, an internal fastening cap fixed inside the outer container, and an inner container for containing the contents, wherein the inner container is fitted and fixed inside the outer container via the internal fastening cap and spatially connected to the discharge section, and the inner container may be removable from the internal fastening cap and replaceable from the outer container. [Effects of the Invention]

[0009] According to one embodiment of the present invention, since the outer container or inner container that constitutes the contents container is made from the same material, the container can be disposed of without the need to remove the parts from the container and separate them for disposal, which has the advantage of being easy to recycle and also being environmentally friendly.

[0010] According to one embodiment of the present invention, since the inner container can be easily attached to and removed from the outer container, when the contents are used up, the inner container can be removed from the outer container and replaced for continued use.

[0011] The effects obtained through this disclosure 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 pertains from the following description. [Brief explanation of the drawing]

[0012] A brief description of each drawing is provided to help you fully understand the drawings referenced in the section describing the detailed invention.

[0013] [Figure 1] This is a front view showing a contents container according to one embodiment, and shows the state in which the inner container is fastened to the outer container and a refillable inner container, respectively. [Figure 2] This is a front view showing a contents container according to one embodiment, and a cross-sectional view showing the inner container fastened to the outer container and a refillable inner container, respectively. [Figure 3] This is an exploded perspective view of a contents container according to one embodiment. [Figure 4] This diagram shows a state in which the outer container and inner container of a contents container according to one embodiment have been separated. [Figure 5] This is a cross-sectional view showing the state after the inner container has been fitted into the outer container according to one embodiment, but before it has been fastened to the internal fastening cap. [Figure 6] A cross-sectional view showing the state in which the inner container is fastened to the internal fastening cap of the outer container according to one embodiment. [Figure 7] A cross-sectional view showing the state in which the inner container is fastened to the internal fastening cap of the outer container according to one embodiment. [Figure 8] This is a perspective view showing a state in which the inner container is fastened to the internal fastening cap of the outer container according to one embodiment, with a portion of the cutout. [Figure 9] A perspective view showing an internal fastening cap according to one embodiment. [Figure 10] This is an illustrative diagram showing, in sequence, the usage state of a contents container according to one embodiment.

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

Best Mode for Carrying Out the Invention

[0015] According to one embodiment, the content container includes an outer container, a discharge part disposed at one end of the outer container for discharging the content to the outside, an internal fastening cap fixed inside the outer container, and an inner container for containing the content. The inner container is fitted and fixed in the outer container via the internal fastening cap and is spatially connected to the discharge part. The inner container may be removable from the internal fastening cap and replaceable from the outer container.

[0016] Also, according to one embodiment, the outer container, the discharge part, and the internal fastening cap may be formed of the same type of material.

[0017] Furthermore, according to one embodiment, the internal fastening cap may include a fitting part fastened to the outer container and a fastening part extending from the fitting part for attaching and detaching the inner container.

[0018] Furthermore, according to one embodiment, the fitting part may include at least one locking protrusion on the outer surface so that the internal fastening cap does not come off in a direction opposite to the fitting direction of the inner container.

[0019] Furthermore, according to one embodiment, the fitting part may include a rotation prevention fixing part on the outer surface to prevent the inner container fitted in the internal fastening cap from moving freely.

[0020] Furthermore, according to one embodiment, the fitting part may include an orifice at the upper end for adjusting the discharge amount of the content.

[0021] Furthermore, according to one embodiment, the outer container includes a main body in which the inner container is housed, an upper part in which the discharge section is located, and a neck formed between the main body and the upper part, wherein the neck may include a first support section for coupling with the internal fastening cap.

[0022] Furthermore, according to one embodiment, the first support portion may be hollow and include at least one first locking structure on its inner surface to prevent the inner container from being inserted too far, and the insertion portion may include a second locking structure on its outer surface corresponding to the first locking structure.

[0023] Furthermore, according to one embodiment, the fastening portion may further include a second support portion in the internal space that supports the fitted state of the inner container, with at least one surface in contact with the inner surface of the inner container.

[0024] Furthermore, according to one embodiment, a first inclined surface may be formed on the outer surface of one end of the internal fastening cap to facilitate insertion into the outer container, and a second inclined surface may be formed on the outer surface of one end of the second support portion to facilitate insertion of the inner container.

[0025] Furthermore, according to one embodiment, the inner container may include a refillable body in which the contents are stored, a second fastening portion formed at one end of the refillable body, and an elastically deformable portion formed between the refillable body and the second fastening portion.

[0026] Furthermore, according to one embodiment, the refill body, the second fastening portion, and the elastic deformation portion may be formed from the same material.

[0027] Furthermore, according to one embodiment, the inner container further includes a refill cap that is attached to and detached from the second fastening portion, and a bottom cap that is attached to and detached from the lower end of the refill body, wherein the refill cap is a member that is removed in order for the inner container to be fastened to the outer container, and the bottom cap is a member used to pressurize the contents of the inner container that is fitted into the outer container.

[0028] In addition to these, according to one embodiment, the elastically deformable portion is bellows-shaped with alternating peaks and valleys, and a change in the volume of the filled contents may occur in accordance with the deformation of the elastically deformable portion.

[0029] 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 the present invention, and similar parts are denoted by similar reference numerals throughout the specification.

[0030] In this specification, while considering the function of the present invention, we have selected as many commonly used terms as possible. However, these terms may mean various other terms depending on the intentions of engineers in the art, precedents, or the emergence of new technologies. Therefore, the terms used in this invention should not be interpreted merely as names of terms, but should be defined in light of the meaning of the terms and the overall content of the present invention.

[0031] Furthermore, while phrases such as "first," "second," etc., can be used to describe various components, these phrases do not limit the components in any way. These phrases can only be used to distinguish one component from another.

[0032] Throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with other elements in between. Furthermore, when a part is described as "containing" a certain component, unless otherwise specified, this does not mean that other components are excluded, but rather that it may contain other components as well.

[0033] The phrases "in one embodiment" and similar expressions found in multiple places in this disclosure do not necessarily all refer to the same embodiment.

[0034] Embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0035] Figure 1 is a front view showing a contents container according to one embodiment, showing the inner container fastened to the outer container and a refillable inner container. Figure 2 is a front view showing a contents container according to one embodiment, showing the inner container fastened to the outer container and a refillable inner container.

[0036] Referring to Figures 1 and 2, according to one embodiment, the contents container may include an outer container 100 and an inner container 200 that is fitted into the internal space of the outer container 100 and can be fastened to or detached from the outer container 100.

[0037] According to one embodiment, the outer container 100 may be a bottle-shaped protective and support component that facilitates the insertion and removal of the inner containers 200, 201 filled with contents, protects the fastened inner containers 200, 201 from the external environment, and supports a discharge section 150 arranged for the discharge of contents. For example, the discharge section 150 may include a pipette.

[0038] According to one embodiment, the inner container 200 is a container that holds contents and is detachably attached to the outer container 100. The inner container 200 can be easily fitted to and removed from the outer container 100.

[0039] When the contents of the inner container 200 are used up, they can be replaced with another inner container 201 filled with contents. For example, when the contents of the inner container 200 are used up, the user can remove the inner container 200 from the outer container 100, remove the refill cap 240 of the refillable inner container 201 (provided as an enclosed item or purchased separately), and then reattach it to the outer container 100, thereby continuing to reuse the contents container.

[0040] The inner container 200 can be sold to the user already fitted into the outer container 100, or the outer container 100 and the inner container 200 can be sold separately and then combined by the user.

[0041] An inner container 200 that has been used up may be constructed in the same manner as an inner container 201 that has been filled with contents. Therefore, the following description of inner container 200 is also applicable to inner container 201.

[0042] The contents to be filled into the inner container 200 may be a liquid or gel-like fluid, such as cosmetic ingredients, pharmaceutical contents, or quasi-drugs like toothpaste. However, the present invention is not limited to these, and encompasses all kinds of substances that can be inhaled and discharged through the discharge port 150. The outer container 100 may be bottle-shaped, but the present invention is not limited to such a shape, and a wide variety of types, such as tube-shaped containers, can be used.

[0043] Figure 3 is an exploded perspective view showing the structure of a contents container according to one embodiment, and Figure 4 is a diagram showing the contents container according to one embodiment in a separated state from the outer container and inner container.

[0044] Referring to Figures 3 and 4, according to one embodiment, the outer container 100 may include a main body 110, an upper part 120, and a neck 130.

[0045] According to one embodiment, the main body 110 may be a portion into which the inner container 200 is fitted, and which protects the fitted inner container 200.

[0046] According to one embodiment, the upper part 120 is the portion on which the discharge portion 150 is positioned and may include a support structure for supporting the fitted discharge portion 150. For example, the support structure may include an engagement structure between a projection and a groove. According to one embodiment, the upper part 120 may include a coupling structure for coupling with the overcap 140, specifically, a screw thread 121 on its outer surface. The overcap 140 can be tightened to and untightened from the upper part 120.

[0047] According to one embodiment, the discharge section 150 is a discharge member for discharging the contents of the inner container 200 to the outside, and may be fixed to the upper part 120 of the outer container 100. According to one embodiment, the discharge section 150 may be sealed by an overcap. A discharge hole may be formed at the end of the discharge section 150. The discharge section 150 may be formed integrally with the main body 110.

[0048] According to one embodiment, the inner container 200 may include a refillable body 210, an elastically deformable part 230, and a fastening part 220.

[0049] According to one embodiment, the refill body 210 is the part in which the contents are stored and may be hollow.

[0050] According to one embodiment, the elastic deformation portion 230 is integrally connected to the refill body 210 and can perform both elastic and storage functions. By forming the elastic deformation portion 230 integrally with the refill body 210 without forming it as a separate part and then assembling it, manufacturing costs can be reduced, the process can be simplified, and production efficiency can be increased.

[0051] The elastic deformation portion 230 can be compressed when biased and return to its original position when the biasing force is released. For example, the elastic deformation portion 230 may have an appearance that is bellows-like, with repeatedly formed peaks and valleys. According to one embodiment, the pressurizing action by pressing the bottom cap 250 can cause deformation of the elastic deformation portion, and such deformation can pressurize the contents, thereby allowing the contents to be discharged.

[0052] According to one embodiment, the fastening portion 220 may include a fastening structure for fastening to the internal fastening cap 300 of the outer container 100. According to one embodiment, the fastening portion 220 can be screwed into the internal fastening cap 300 by including screw threads 221 on its outer circumferential surface. In addition to screwing, a wide variety of fastening structures can be used.

[0053] According to one embodiment, the inner container 200 may have a bottom cap 250 attached to its lower end or detached from its lower end. The bottom cap 250 may be part of the mechanism for pressing down on the inner container 200 while it is fastened to the outer container 100. In other words, the bottom cap 250 can function as a component for pressurizing the contents filled in the refill body 210. The bottom cap 250 may be shaped like a push button to facilitate pressurization. By pressing the bottom cap 250, the contents can be discharged to the outside through the discharge section 150.

[0054] According to one embodiment, the internal fastening cap 300 is fastened inside the outer container 100, but is a detachable member positioned to connect and separate the inner container 200. According to one embodiment, the internal fastening cap 300 may be fixed inside the neck 130 of the outer container 100. According to one embodiment, the internal fastening cap 300 is fastened to the fastening portion 220 of the inner container 200, and with such a fastening structure, the inner container 200 can be fixed to the outer container 100.

[0055] According to one embodiment, the internal fastening cap 300 may include a fitting portion 310 and a detachable portion 320. According to one embodiment, the fitting portion 310 is a portion that is fitted into the neck 130 of the outer container 100 by a choke-fit method and may include at least one locking structure. According to one embodiment, the detachable portion 320 is a portion that is fastened to the fastening portion 220 of the inner container 200 and may have screw threads formed on its inner surface. Details of the coupling structure of the internal fastening cap 300 will be described later.

[0056] Figure 5 is a cross-sectional view showing the state after the inner container has been fitted into the outer container according to one embodiment, but before it has been fastened to the internal fastening cap. Figure 6 is a cross-sectional view showing the state after the inner container has been fastened to the internal fastening cap of the outer container according to one embodiment.

[0057] Referring to Figures 5 and 6, according to one embodiment, the internal fastening cap 300 may be fixed in the internal space of the neck 130. According to one embodiment, a first support portion 131 may be formed in the neck 130 of the outer container for fixing the internal fastening cap 300. According to one embodiment, the first support portion 131 is hollow and extends in the direction opposite to the insertion direction of the inner container 200, and the internal fastening cap 300 may be fitted and fixed in the internal space.

[0058] According to one embodiment, the first support portion 131 may have at least one first locking structure 132 formed on its inner surface. According to one embodiment, the first locking structure 132 may be formed to prevent the internal fastening cap 300 from being inserted too far. The first locking structure 132 may include at least one locking portion. According to one embodiment, a second locking structure 312 corresponding to the first locking structure 132 is formed on the outer circumferential surface of the insertion portion 310 of the internal fastening cap 300, and the first locking structure 132 and the second locking structure 312 are in close contact, thereby preventing the inner container 200 from being inserted too far.

[0059] According to one embodiment, the detachable portion 320 may have a substantially larger diameter than the insertion portion 310, and the fastening portion 220 of the inner container 200 may be fastened inside it. According to one embodiment, the detachable portion 320 may include a thread 321 formed on its inner surface 322. According to one embodiment, the detachable portion 320 may include a second support portion 323 that supports the fastened inner container 200 when the inner container 200 is fastened. According to one embodiment, the second support portion 323 may be substantially hollow, extend in a direction opposite to the insertion direction of the inner container 200, and have at least one surface in contact with the inner surface of the inner container 200.

[0060] According to one embodiment, the second support portion 323 may have a second inclined surface 324 formed on its outer surface to facilitate the fastening portion 220 of the inner container 200.

[0061] According to one embodiment, when the fastening portion 220 of the inner container 200 is fastened to the internal fastening cap 300, the fastening portion 220 of the inner container 200 may be located between the attachment / detachment portion 320 of the internal fastening cap 300 and the second support portion 323.

[0062] Figure 7 is a cross-sectional view showing the state in which the inner container is fastened to the internal fastening cap of the outer container according to one embodiment.

[0063] Referring to Figure 7, when the inner container 200 is fastened to the outer container 100, the inner container 200, the internal fastening cap 300, and the discharge section 150 are spatially connected to each other, thereby forming a fluid path for the contents from the inner container 200 to the discharge hole 154 of the discharge section 150.

[0064] According to one embodiment, the internal fastening cap 300 may include a first flow path 325 and a second flow path 326 having a substantially smaller inner diameter than the first flow path 325. The first and second flow paths 325 and 326 can be spatially connected to the discharge section 150 and become part of the flow path for the contents of the filled inner container 200.

[0065] In one embodiment, the internal fastening cap 300 (particularly the fitting portion 310) may have an orifice 316 structure formed at its upper end to adjust the amount of contents discharged. The discharge port of the orifice 316 is formed to have an inner diameter even narrower than the inner diameter of the second flow path 326. The inner diameter of the second flow path 326 may gradually decrease as it proceeds toward the orifice 316. Alternatively, the inner diameter of the orifice 316 may be formed to gradually narrow as it proceeds toward the direction from which the contents are discharged. This change in inner diameter adjusts the amount of contents discharged, so that even if the inner container 200 is pressurized, the contents can be discharged in a constant amount without being discharged excessively. In another embodiment, the upper surface of the orifice 316 may be relatively flat, but the cross-sectional area of ​​the back surface may gradually increase toward the discharge port (center). In other words, the orifice 316 may be formed such that its cross-sectional area gradually decreases as it moves outward from the center of the discharge port, with the back surface of the orifice as the reference point. This allows the back surface of the orifice to form a slope around the discharge port. This structure has the effect of dispersing the contents that are pushed towards the orifice 316 by the pressurization of the inner container 200 around the discharge port, thereby temporarily regulating the amount of contents that pass through the discharge port.

[0066] According to one embodiment, the discharge section 150 may be spatially connected to the internal fastening cap 300. According to one embodiment, the discharge section 150 may include a third flow path 152 which is substantially larger in diameter than the second flow path 326 and substantially smaller in diameter than the first flow path 325. The second flow path 326 and the third flow path 152 are spatially connected so that the contents that have passed through the first and second flow paths 325 and 326 can advance into the third flow path 152. The contents that have filled the third flow path 152 can be discharged to the outside after passing through the discharge hole 154.

[0067] According to one embodiment, the first flow path 325, the second flow path 326, and the orifice 316 are formed so that their inner diameters gradually narrow. The contents that advance due to the pressurization of the inner container 200 are first discharged as they pass through the first flow path 325 and the second flow path 326, and secondarily discharged as they pass through the narrow discharge opening of the orifice 316, allowing a constant amount of contents to be discharged through the third flow path 152 to the discharge hole 154. The arrows written on the first to third flow paths 325, 326, and 152 indicate the direction of travel of the contents.

[0068] Referring to Figures 8 and 9, according to one embodiment, the internal fastening cap 300 may have a fitting portion 310 on one side (e.g., the upper part) and a detachable portion 320 on the other side (e.g., the lower part) for placing the inner container 200 inside the neck 130. According to one embodiment, the fitting portion 310 of the internal fastening cap 300 may include a locking projection 314 and an anti-rotation fixing portion 313 extending from the locking projection 314 for fixing it inside the neck 130 of the outer container 100. According to one embodiment, the locking projection 314 is a structure formed to prevent the internal fastening cap 300, which is fitted inside the neck 130, from coming out in the direction opposite to the direction in which the inner container 200 is fitted, and may have a claw-shaped step.

[0069] According to one embodiment, the anti-rotation fixing portion 313 may be a structure that prevents the rotational movement of the internal fastening cap 300 fitted inside the neck 130. For example, during the operation of removing an inner container 200 fastened to an outer container 100 and fastening another inner container 200, rotational force may be generated, which may cause the fastened internal fastening cap 300 to become loose. To prevent this, the anti-rotation fixing portion 313 may be formed.

[0070] According to one embodiment, the anti-rotation fixing portion 313 may include a plurality of protrusions. According to one embodiment, each protrusion may project outward in the circumferential direction and extend in the insertion direction, and may be formed at equal intervals in the circumferential direction.

[0071] According to one embodiment, the first support portion 131 may have a plurality of fixing grooves 133 formed on its inner surface into which anti-rotation fixing portions 313 are fitted.

[0072] According to one embodiment, the internal fastening cap 300 has a first inclined surface 315 formed at one end, which allows for easy insertion into the first support portion 131.

[0073] According to one embodiment, the outer container 100 and / or the inner container 200 may be formed from the same material. For example, the outer container 100, the discharge section 150 and the internal fastening cap 300 may be formed from the same material, and / or the refill body 210, the fastening section 220 and the elastic deformation section 230 constituting the inner container 200 may be formed from the same material. For example, the same material may be polypropylene (PP) or polyethylene (PE). Therefore, the container itself can be recycled without the need to remove the parts of the outer container 100 and / or the inner container 200, which has the advantage of being environmentally friendly.

[0074] Based on Figure 10, the use of the contents container according to one embodiment of the present invention is described below. When all the contents of the contents container 200 have been used up, rotate the fastened contents container 200 to release the fastening, and then remove it in the direction of the arrow (1) (Figure 10(a)) and pull it out of the outer container 100.

[0075] Next, the refill cap 240 of the refillable inner container 201, which is filled with contents, is removed (Figure 10(b)), and then inserted into the internal fastening cap 300 in the direction of the arrow (2) (Figure 10(c)), and then rotated to fix the inner container 201 to the internal fastening cap 300 of the outer container 100.

[0076] After fastening the inner container 201 filled with contents, the discharge port 150 is turned downwards, and the overcap 140 of the outer container 100 is removed. Then, the bottom cap 250 of the inner container 201 is pressed in the direction of the arrow (3) (Figure 10(d)), allowing the contents to be discharged to the outside through the discharge port 150. Pressing the bottom cap 250 changes the volume of the contents in the inner container 201, allowing the contents to be discharged to the outside through the discharge port 150.

[0077] 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]

[0078] 100: Outer container 110: Main unit 120: Top 130: Neck 131: First support 132: First locking structure 140: Overcap 150: Discharge section 152: The third channel 154: Discharge hole 200, 201: Inner container 210: Refillable bottle 220: Fastening part 230: Elastic deformation part 240: Refill Cap 250: Bottom cap 300: Internal fastening cap 310: Inset part 312: Second locking structure 313: Anti-rotation fixing part 314: Locking protrusion 315: First slope 316: Orifice 320: Detachable part 321: Screw thread 322: Inner self 323: Second support 324: Second slope 325: First channel 326: Second channel

Claims

1. The contents container, Outer container and The outer container is provided with a discharge section located at one end for discharging the contents to the outside, An internal fastening cap fixed inside the outer container, An inner container for holding the contents, Includes, The inner container is fitted and fixed into the outer container via the internal fastening cap and spatially connected to the discharge section. The inner container is a container for contents that can be removed from the internal fastening cap and replaced from the outer container.

2. The contents container according to claim 1, wherein the outer container, the discharge section, and the internal fastening cap are formed from the same material.

3. The aforementioned internal fastening cap is A fitting portion fastened to the outer container, A fastening portion extending from the aforementioned fitting portion, through which the inner container is attached and detached, A contents container according to claim 1, including the following.

4. The aforementioned insertion portion is The contents container according to claim 3, further comprising at least one locking projection on its outer surface to prevent the internal fastening cap from coming off in the direction opposite to the direction in which the contents container is inserted.

5. The aforementioned insertion portion is The contents container according to claim 3, further comprising an anti-rotation fixing portion on its outer surface to prevent the contents container fitted into the internal fastening cap from moving.

6. The aforementioned insertion portion is The contents container according to claim 3, further comprising an orifice at its upper end for adjusting the amount of contents dispensed.

7. The aforementioned outer container is The main body in which the inner container is housed, The upper part where the discharge section is located, A neck formed between the main body and the upper part, Includes, The contents container according to claim 3, wherein the neck includes a first support portion for coupling with the internal fastening cap.

8. The first support portion is hollow and includes at least one first locking structure on its inner surface to prevent the inner container from being inserted too far. The contents container according to claim 7, wherein the fitting portion includes a second locking structure on its outer surface that corresponds to the first locking structure.

9. The contents container according to claim 3, wherein the fastening portion further includes a second support portion in the internal space that supports the fitted state of the contents container, with at least one surface in contact with the inner surface of the contents container.

10. The contents container according to claim 9, wherein a first inclined surface is formed on the outer surface of one end of the internal fastening cap to facilitate insertion into the outer container, and a second inclined surface is formed on the outer surface of one end of the second support portion to facilitate insertion of the inner container.

11. The aforementioned inner container is The refillable container in which the contents are stored, A second fastening portion formed at one end of the refill body, An elastic deformation portion formed between the refill body and the second fastening portion, A contents container according to claim 1, including the following.

12. The contents container according to claim 11, wherein the refillable body, the second fastening portion, and the elastically deformable portion are formed from the same material.

13. The aforementioned inner container is A refillable cap that is attached to and detached from the second fastening portion, A bottom cap that can be attached to and detached from the lower end of the refillable body, It further includes, The contents container according to claim 11, wherein the refill cap is a member that is removed in order for the inner container to be fastened to the outer container, and the bottom cap is a member used to pressurize the contents of the inner container fitted into the outer container.

14. The contents container according to claim 11, wherein the elastically deformable portion is bellows-shaped with alternating peaks and valleys, and the volume of the filled contents changes in accordance with the deformation of the elastically deformable portion.

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