Refillable discharge container and refill container

Abstract

Disclosed is a refillable discharge container and a refill container. The refillable discharge container of the present invention includes an outer container having a receiving space formed on the inside thereof and opened upward, an inner container having a storage space formed on the inside thereof and opened upward, and inserted into the receiving space, a holder including a holder body and a support protrusion, and coupled to the open upper portion of the inner container, an inner cap having a cap passage formed therethrough in the up-down direction, and coupled to the open upper portion of the outer container in a detachable manner, and the holder pressing the inner container in a state of being coupled to the outer container, a shoulder having a through hole formed in the upper portion thereof, and coupled to the outside of the inner cap, a button having a discharge hole formed in the upper portion thereof, and coupled to the through hole of the shoulder in a manner of passing through the through hole, and movable in the vertical direction, and a pump module adjacent to the holder passage and the cap passage, and including an elastic member to elastically support the button against the cap.

Description

TECHNICAL FIELD

[0001] The present invention relates to a discharge container, and more particularly, to a refillable discharge container and a refill container which are easy to replace and facilitate recycling. BACKGROUND

[0002] As social awareness of the seriousness of environmental pollution increases, demand for products that are easy to recycle and reuse is also increasing. In particular, refillable discharge containers facilitate recycling by being made of the same material, for example, using a spring made by plastic injection molding instead of a spring of metal material provided in a conventional pump, thereby facilitating recycling. In addition, by making a part of the components of the discharge container replaceable for refilling, costs can be saved and resource waste can be reduced.

[0003] On the other hand, as another aspect of preventing resource waste, it can include being able to completely use up the contents inside the container. For example, when the refill container to be replaced has residual contents inside, not only is there resource waste from discarding the residual contents, but there is also additional resource waste from the process of opening and cleaning the container because the container cannot be immediately recycled.

[0004] One point that needs to be considered in the design of the refill container is that if the configuration of the refill container is too simple, it can not be easy to install the refill container, and even after the refill container is installed, the discharge container can not provide high performance. If the refill container has a more complex configuration in order to compensate for this, the manufacturing cost of the refill container as a replacement object can increase, and thus this can also cause resource waste. Therefore, there is a demand for a refillable discharge container and a refill container in which the refill container can have a simple configuration while the discharge container maintains high performance, and in which the replacement of the refill unit is easy and facilitates recycling. SUMMARY

[0005] TECHNICAL PROBLEM

[0006] Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a refillable discharge container and a refill container in which the replacement of a refill unit is easy and facilitates recycling.

[0007] Another object of the present invention is to provide a refillable discharge container and a refill container in which the remaining amount of contents stored in the container that is not consumed is minimized, and in which the cleaning process of the container for recycling is simplified.

[0008] Still another object of the present invention is to provide a refillable discharge container and a refill container in which the refill container has a simple configuration while the refillable discharge container can maintain high performance.

[0009] Other objects of the present application will become more apparent from the following embodiments set forth herein below.

[0010] Technical Solution

[0011] According to an aspect of the present application, a refillable discharge container can include: an outer container forming an accommodation space open to an upper side inside; an inner container forming a storage space open to an upper side inside and inserted into the accommodation space; a holder including a holder body forming a holder passage passing through up and down, and a support protrusion protruding upward from an upper surface of the holder body and coupled to an open upper portion of the inner container; an inner cap forming a cap passage passing through up and down at a position corresponding to the holder passage, configured to be detachably coupled to an open upper portion of the outer container, and configured to press the holder against the inner container in a state of being coupled to the outer container; a shoulder forming a through hole at an upper portion and coupled to an outer side of the inner cap; a button forming a discharge hole at an upper portion, coupled to the through hole, and movable in a vertical direction, and coupled to the through hole in a manner that a portion of the button passes through the through hole of the shoulder; and a pump module configured to be adjacent to the holder passage and the cap passage, and including an elastic member to elastically support the button against the inner cap and to discharge contents stored in the storage space to an outside of the discharge hole when the button is pressed.

[0012] The refillable discharge container of the present application can have one or more of the following embodiments. For example, the holder can include a holder protrusion protruding in at least one of upward and downward directions from the holder body to form the holder passage inside, and an inner diameter of the holder protrusion can decrease as it goes downward. Also, the inner cap can include a cap protrusion protruding in at least one of upward and downward directions from a cap body to form the cap passage inside, and an inner diameter of the cap protrusion can decrease as it goes downward.

[0013] The refillable discharge container can further include a piston disposed below the contents in the storage space of the inner container and configured to be in close contact with an inner circumferential surface of the inner container, and can be configured to move upward in the storage space as the contents are discharged. In this case, the piston can include a piston body, a recessed portion recessed downward from the piston body, and a close-contact portion formed on an outer circumferential surface of the piston body, and a shape of the recessed portion can correspond to a shape of a portion protruding downward from a lower surface of the holder body among the holder, the inner cap, and the pump module.

[0014] The inner container can include a flange configured to straddle an upper portion of the outer container, and an outer peripheral surface and a lower surface of the inner container can be configured not to be in contact with the outer container. In this case, a boss can be formed on an inner side of an upper end of the outer container, and the flange of the inner container can be seated in the boss such that the lower surface and the outer peripheral surface of the flange are in contact with the outer container.

[0015] The refill container of another aspect of the present application can be a refill container for the aforementioned refillable discharge container, and can include the inner container, the holder, and a refill cap coupled to the holder, wherein the refill cap can include a flat plate having a shape corresponding to the holder, a first plug configured to protrude downward from a lower surface of the flat plate at a position corresponding to the holder passage to block the holder passage in a state in which the refill cap is coupled to the holder, a second plug configured to protrude downward from the lower surface of the flat plate in a manner adjacent to the support protrusion of the holder to be in close contact with a side surface of the support protrusion in the state in which the refill cap is coupled to the holder, and a grip portion protruding upward from an upper surface of the flat plate.

[0016] Effects of the Invention

[0017] According to the technical solution of the present application as described above, various effects including the following matters can be expected. It should be noted that the present application can be established without exerting all of the following effects.

[0018] The refillable discharge container and the refill container of an embodiment of the present application provide an effect of being able to be conveniently recycled and simply replaced, and allowing the contents in the refill unit to be completely consumed, thereby providing an effect of suppressing waste of resources.

[0019] On the other hand, the refillable discharge container and the refill container of an embodiment of the present application provide an effect of maintaining high performance while being able to be simply replaced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a perspective view exemplarily illustrating a refillable discharge container of an embodiment of the present application.

[0021] Figure 2 FIG. 2 is an exploded perspective view exemplarily illustrating the refillable discharge container of an embodiment of the present application.

[0022] Figure 3 FIG. 3 is a cross-sectional view exemplarily illustrating the refillable discharge container of an embodiment of the present application.

[0023] Figure 4is a sectional view of a pump module of a refillable dispensing container exemplarily illustrating an embodiment of the present application.

[0024] Figure 5 is a perspective view of a holder of a refillable dispensing container exemplarily illustrating an embodiment of the present application.

[0025] Figure 6 is a perspective view of a refill container exemplarily illustrating an embodiment of the present application.

[0026] Figure 7 is a sectional view of a refill container exemplarily illustrating an embodiment of the present application.

[0027] Figure 8 is a perspective view of a refill cap of a refill container exemplarily illustrating an embodiment of the present application.

[0028] Figure 9 is a perspective view of a replacement process of a refill unit in a refillable dispensing container exemplarily illustrating an embodiment of the present application.

[0029] Reference Signs

[0030] 100: refillable dispensing container, 110: outer container, 130: button, 150: valve, 170: shoulder, 190: upper cap, 200: refill container, 210: inner container, 220: piston, 250: refill cap, 300: holder, 400: inner cap, 500: pump module. DETAILED DESCRIPTION

[0031] The present application can be applied to a variety of modifications and can have various embodiments, some specific embodiments of which will be exemplified in the accompanying drawings and described in detail in the detailed description. However, this is not intended to limit the present application to specific embodiments, but should be understood to include all modifications, equivalents, and even alternatives falling within the spirit and technical scope of the present application. In describing the present application, when it is judged that a specific description of related known technology can obscure the gist of the present application, a detailed description thereof is omitted.

[0032] The terms used in the present application are used only to explain specific embodiments and are not intended to limit the present application. Unless explicitly defined otherwise in the context, the singular expression includes the plural expression. In the present application, the terms "include" or "have" or the like should be understood to designate the presence of features, numbers, steps, actions, constituent elements, components, or combinations thereof described in the specification, rather than precluding the presence or additiveness of one or more other features, numbers, steps, actions, constituent elements, components, or combinations thereof.

[0033] The terms first, second, etc. can be used to describe various constituent elements, but the constituent elements should not be limited to the terms. The terms are used only for the purpose of distinguishing one constituent element from another.

[0034] Embodiments of the present application will be described in detail below with reference to the accompanying drawings, in which, for the purpose of the description in reference to the drawings, the same or corresponding constituent elements are given the same reference numerals regardless of the reference numerals, and repetitive description thereof is omitted.

[0035] Figure 1 is a perspective view exemplarily illustrating a refillable dispensing container 100 of an embodiment of the present application, Figure 2 and Figure 3 are an exploded perspective view and a cross-sectional view, respectively, exemplarily illustrating the refillable dispensing container 100. Figure 4 is a cross-sectional view exemplarily illustrating a pump module 500 of the refillable dispensing container 100, Figure 5 is a perspective view exemplarily illustrating a holder 300 of the refillable dispensing container 100.

[0036] Referring to Figures 1 to 5 , the refillable dispensing container 100 of an embodiment of the present application can generally include an outer container 110, an inner container 210, a piston 220, a holder 300, an inner cap 400, a pump module 500, a button 130, a valve 150, a shoulder 170, and an upper cap 190. The constituent elements of the refillable dispensing container 100 will be described in the order listed above.

[0037] The outer container 110 is a portion in which an accommodation space 115 open to an upper side is formed on an inner side, and can function to accommodate the inner container 210 inserted into the accommodation space 115. In an embodiment of the present application, the outer container 110 can be formed of glass or a transparent plastic material, but the present application is not limited in relation to the material of the outer container 110.

[0038] In the example shown in Figures 1 to 3 , a reduced diameter portion 112 having a smaller outer diameter is formed at an upper portion of the outer container 110. The reduced diameter portion 112 allows the inner cap 400 to be more easily coupled to the outer container 110. An external thread 118 can also be formed on an outer circumferential surface of the reduced diameter portion 112 as illustrated. The reduced diameter portion 112 has a smaller outer diameter than the outer diameter of the remaining portion of the outer container 110, and thus a boss 113 can be formed at a lower portion of the reduced diameter portion 112.

[0039] The inner container 210 can be inserted into the inside of the outer container 110, and an upper portion of the inner container 210 can straddle an upper portion of the outer container 110. As shown, when a flange 218 is provided at an upper portion of the inner container 210, an L-shaped protrusion 114 can be formed at the inside of an upper end of the outer container 110 in a size corresponding to the size of the flange 218, and the flange 218 of the inner container 210 can be seated in the protrusion 114 and configured such that a lower surface and an outer circumferential surface of the flange 218 are in contact with the protrusion 114 of the outer container 110.

[0040] The inner container 210 is a portion that is inserted into the accommodation space 115 of the outer container 110. An upper-side open storage space 215 can be formed at the inside of the inner container 210, and a content (not shown) configured to be discharged by the refillable discharge container 100 can be stored in the storage space 215. As the content, a substance in a state that is not easily flowed such as a gel, a cream, a foam, etc. can be appropriate, but the present application is not limited in relation to the kind of the content. Further, in an embodiment of the present application, the inner container 210 can be formed of a plastic material such as PP (Polypropylene), but the present application is not limited in relation to the material of the inner container 210.

[0041] In order for the inner container 210 to be smoothly inserted into the inside of the outer container 110, an outer diameter of the inner container 210 can be equal to or less than an inner diameter of the accommodation space 115 portion of the outer container 110, and preferably, the outer diameter of the inner container 210 can be less than the inner diameter of the accommodation space 115 portion of the outer container 110. In this case, the inner container 210 can be configured such that an outer circumferential surface and a lower surface thereof are not in contact with the outer container 110 as shown. Figure 3

[0042] When the piston 220 is provided in the storage space 215 of the inner container 210, an air vent hole 212 can be formed at a lower portion of the inner container 210. The piston 220 can block the movement of the content and air in the storage space 215. For the convenience of explanation, a space in the inner space (storage space 215) of the inner container 210 corresponding to a lower portion of the piston 220 is referred to as an air vent space 217. The air vent hole 212 can communicate the outside and the inside of the inner container 210. That is, the air vent hole 212 can communicate the space between the outer container 110 and the inner container 210 and the air vent space 217 of the inner container 210. The content is stored in the inner container 210, but as will be described later, the piston 220 can be first provided in the storage space 215, and the content can be injected only to an upper portion of the piston 220. The air vent hole 212 is located at a lower portion of the piston 220, and the piston 220 prevents the leakage of the content, so there is no concern that the content will leak through the air vent hole 212.

[0043] ​A reinforcing portion 214 having a greater thickness can be formed in the upper portion of the inner container 210. The inner container 210 will be combined with the outer container 110 and the holder 300 at the upper portion thereof, and since the reinforcing portion 214 has an increased thickness, a higher strength and a more secure combined force can be provided at the corresponding portion. A locking protrusion 216 can be formed in the upper portion of the reinforcing portion 214. The locking protrusion 216 is configured to be locked in the locking groove 326 (refer to Figure 5 ) of the holder 300, thereby facilitating the provision of a higher combined force between the inner container 210 and the holder 300.

[0044] The inner container 210 can further include a flange 218 configured to straddle the upper portion of the outer container 110. The flange 218 can straddle the upper end of the outer container 110 even when the outer diameter of the inner container 210 is smaller than the inner diameter of the outer container 110, such that the inner container 210 is positioned in a set position. As previously described, the L-shaped boss 114 can be formed in the upper end of the outer container 110, and the flange 218 can be seated in the boss 114. The L-shaped boss 114 can support the lower surface of the flange 218 while also being in contact with the outer circumferential surface of the flange 218, thereby facilitating the alignment of the inner container 210 in a prescribed position with respect to the outer container 110.

[0045] In the example shown in Figure 3 , the thickness is increased in the reinforcing portion 214 in the direction of the outer diameter increase, and the locking protrusion 216 is also formed on the outer circumferential surface side of the reinforcing portion 214. This enables the inner circumferential surface of the inner container 210 to maintain a smooth surface, thereby facilitating the insertion of the piston 250 and the holder 300 while allowing the inner container 210 to be closely fitted to the holder 300, thereby providing an effect of preventing the leakage of the contents. It should be noted that when the edge of the piston 250 is formed of a soft material and the leakage between the holder 300 and the inner container 210 is not a major concern, the thickness can be increased in the reinforcing portion 214 in the direction of the inner diameter decrease, and the locking protrusion 216 can be formed on the inner circumferential surface side of the reinforcing portion 214.

[0046] The piston 220 can be inserted into the storage space 215 of the inner container 210 to function to bring the contents (not shown) into contact with the pump module 500. For example, when the contents are stored in the storage space 215 of the inner container 210 without the piston 220 and with the vent hole 212 located at a different position, as the pump module 500 discharges the contents, the liquid level of the contents in the storage space 215 gradually decreases, and the pump module 500 can have to lift the contents from the lower portion of the storage space 215 through a tube or the like.

[0047] On the contrary, when the piston 220 is provided and the vent hole 212 is formed in the lower portion of the inner container 210, as the pump module 500 discharges the contents, the internal pressure of the sealed space above the piston 220 within the storage space 215 decreases, and due to the negative pressure, the piston 220 can rise. As the piston 220 rises, air can flow into the space below the piston 220 through the vent hole 212 of the lower portion of the inner container 210. Since the contents cannot permeate below the piston 220, the upper portion of the storage space 215 is always filled with the contents, and the situation in which the pump module 500 cannot discharge the contents does not occur.

[0048] According to an embodiment of the present application, the piston 220 can include a piston body 222, a recessed portion 224, and a close-contact portion 226. In an embodiment of the present application, the piston 220 can be formed of a plastic material such as PE (Polyethylene), but the present application is not limited in relation to the material of the piston 220.

[0049] The piston body 222 can be implemented in a substantially flat form as a body of the piston 220, and can be designed to have a suitable thickness in consideration of the weight and required strength of the piston 220.

[0050] The recessed portion 224 corresponds to a portion recessed downward from the piston body 222. The recessed portion 224 can be formed at a position corresponding to the position of the pump module 500. According to an embodiment of the present application, the recessed portion 224 can have a shape corresponding to the shape of a portion protruding downward from the lower surface of the holder body 310 (refer to FIG. 4) of the holder 300, which will be described later in the pump module 500. Figure 5 ) of the holder 300.

[0051] As the contents within the storage space 215 are consumed, the piston 220 rises within the storage space 215, and in a preferred embodiment, when the piston 220 reaches the maximum possible height, the portion protruding downward from the lower surface of the holder body 310 of the holder 300, the inner cap 400, and the pump module 500 can be inserted into the recessed portion 224, and the upper surface of the piston body 222 can come into contact with the lower surface of the holder body 310. Thereby, it is possible to provide an effect of allowing the pump module 500 to normally receive the contents until the last, by allowing the remaining amount of the contents to be located in the recessed portion 224 when the contents are almost consumed.

[0052] The close-contact portions 226, 228 can be configured to be in close contact with the inner circumferential surface of the inner container 210 as portions formed on the outer circumferential surface of the piston body 222. Figure 3In the illustrated example, the close-contact portions 226, 228 include a lower close-contact portion 226 and an upper close-contact portion 228. The close-contact portions 226, 228 can be configured to be formed to have a small thickness, so that slight elastic deformation occurs, whereby the contents and air can be prevented from passing through when the inner container 210 comes into contact with the inner circumferential surface.

[0053] The lower close-contact portion 226 can extend downward from the piston body 222, as Figure 3 illustrated, to a height corresponding to the lower surface of the recessed portion 224. The lower close-contact portion 226 can have an outer diameter that increases toward the lower side, so as to strongly close-contact the inner circumferential surface of the inner container 210. Of course, in some embodiments, the lower close-contact portion 226 can extend only to a position higher than the height corresponding to the lower surface of the recessed portion 224. Likewise, the upper close-contact portion 228 can extend upward from the piston body 222, as Figure 3 illustrated, to a height corresponding to the upper surface of the piston body 222. The upper close-contact portion 228 can have an outer diameter that increases toward the upper side, so as to strongly close-contact the inner circumferential surface of the inner container 210. Of course, in some embodiments, the upper close-contact portion 228 can also extend only to a position lower than the height corresponding to the upper surface of the piston body 222. In some embodiments, one of the lower close-contact portion 226 and the upper close-contact portion 228 can also be omitted. Furthermore, in some embodiments, the piston 220 itself can be omitted, and a tube (not shown) or the like that is coupled to the pump module 500 can be used instead.

[0054] The holder 300, which is a portion coupled to the open upper portion of the inner container 210, can be formed with a holder passage 315 that extends through the upper and lower sides, and the pump module 500 can be installed at a position adjacent to the holder passage 315, so as to receive the contents from the storage space 215 through the holder passage 315. In some embodiments, the holder 300 can be formed of a plastic material such as PP (Polypropylene), and can be formed of the same material as the inner container 210. Note that the present application is not limited in relation to the material of the holder 300. Referring to Figure 5 , the holder 300 can generally include a holder body 310, holder protrusions 312, 314, a support protrusion 318, a side wall 322, a rim 323, and an outer bezel 324.

[0055] The holder body 310 can have a generally flat shape, and can form the body of the holder 300. The holder passage 315 that extends through the upper and lower sides can be formed at a designated position of the holder body 310.

[0056] The holder protrusions 312, 314 can be formed around the holder passage 315 and can protrude in at least one of the upward and downward directions to form the holder passage 315 inside thereof. In the example shown in the drawing, the holder 300 includes a lower holder protrusion 312 extending downward from the holder body 310 and an upper holder protrusion 314 extending upward from the holder body 310, which are implemented in a connected shape. That is, the holder protrusions 312, 314 can have a tube shape extending a predetermined length in the upward and downward directions, the inside of which can correspond to the holder passage 315. In a preferred embodiment, the holder protrusions 312, 314 can have an inner diameter that decreases toward the lower side. That is, the holder passage 315 can be narrowed toward the lower side. A groove 316 for facilitating sealing can also be formed on the inner circumferential surface of the holder protrusions 312, 314.

[0057] The support protrusion 318 can protrude upward a predetermined length from the upper surface of the holder body 310. The support protrusion 318 can be continuously formed around the holder passage 315 as shown, thereby having a ring shape. The support protrusion 318 can protrude in a length or a length shorter than the length that contacts the inner cover 400 coupled to the upper portion of the holder 300. Figure 5

[0058] The side wall 322 can protrude upward a predetermined length from the outer side of the holder body 310. The edge 323 can protrude outward in the horizontal direction from the upper portion of the side wall 322, and the outer side frame 324 can protrude downward a predetermined length from the outer side of the edge 323. Due to this structure, a gap can be formed between the side wall 322 and the outer side frame 324, and the upper portion of the inner container 210 can be inserted and coupled to the gap.

[0059] The inner circumferential surface of the outer side frame 324 can be formed with a locking groove 326, and the locking protrusion 216 of the inner container 210 can be inserted into the locking groove 326 of the outer side frame 324. The locking protrusion 216 and the locking groove 326 can help to strengthen the coupling between the inner container 210 and the holder 300 and to strengthen the sealing of the storage space 215.

[0060] The outer circumferential surface of the side wall 322 can be formed with a sealing protrusion 328. When the holder 300 is coupled to the inner container 210, the sealing protrusion 328 can undergo a slight elastic change by being pressed, thereby enhancing the sealing performance of the corresponding portion.

[0061] ​The inner cap 400 can be detachably coupled to the open upper portion of the outer container 110 while covering the upper portion of the holder 300. In the inner cap 400, an upper and lower through cap passage 415 can be formed at a position corresponding to the holder passage 315, and the pump module 500 can be coupled to the cap passage 415. In some embodiments, the inner cap 400 can be formed of a plastic material such as PP (Polypropylene), or the same material as the inner container 210 and / or the holder 300. It is noted that the present application is not limited in relation to the material of the inner cap 400. Referring to Figure 2 and Figure 3 The inner cap 400 can generally include a cap body 410, a cap protrusion 416, a body sidewall 422, a rim 423, an outer bezel 430, a support sidewall 433, and a support shaft 434.

[0062] The cap body 410 can have a substantially flat shape, and can form a body of the inner cap 400. An upper and lower through cap passage 415 can be formed at a designated position of the cap body 410, which can be formed at a position corresponding to the holder passage 315 of the holder 300.

[0063] An alignment protrusion 412 can be formed in the cap body 410. The alignment protrusion 412 can protrude upward from an upper surface of the cap body 410 by a predetermined length at a position corresponding to a set position of the pump module 500. The alignment protrusion 412 can function to align the pump module 500 to a prescribed position, and can also contribute to sealing the pump module 500.

[0064] The cap protrusion 416 can be formed around the cap passage 415, and can protrude in at least one of the upward and downward directions to form the cap passage 415 inside thereof. In the example shown in the drawing, the inner cap 400 includes a cap protrusion 416 extending downward from the cap body 410. The cap protrusion 416 can have a tube shape extending by a predetermined length in the upward and downward directions, and an inside thereof can correspond to the cap passage 415. In a preferred embodiment, the cap protrusion 416 can have an inner diameter that decreases toward the downward direction. That is, the cap passage 415 can narrow toward the downward direction. A groove for facilitating sealing can also be formed on an outer circumferential surface and / or an inner circumferential surface of the cap protrusion 416.

[0065] When the pump module 500 is inserted inside the cap protrusion 416, an inner circumferential surface of the cap protrusion 416 can be in close contact with an outer circumferential surface of the pump cylinder 510. In particular, since the inner circumferential surface of the cap protrusion 416 is in surface contact with the outer circumferential surface of the pump cylinder 510 over a considerable length, a very strong seal can be formed at this portion.

[0066] As Figure 3As shown, when the inner cover 400 is disposed on the holder 300, the cover protrusion 416 can be in close contact with the inner circumferential surface of the holder protrusions 312, 314 of the holder 300. In order to achieve a stronger seal, a sealing member (not shown) can be added between the holder protrusions 312, 314 and the cover protrusion 416, which can be disposed in a groove formed on the inner circumferential surface of the holder protrusions 312, 314 or a groove formed on the outer circumferential surface of the cover protrusion 416.

[0067] As needed, a stepped portion 418 can be formed on the cover body 410, which can form a step difference at a position higher or lower than the cover body 410. In the example shown, the stepped portion 418 is formed at a lower position at the center of the cover body 410. The stepped portion 418 can serve to strengthen the strength of the cover body 410, and since the pump module 500 is disposed at the stepped portion 418, the relative position of the pump module 500 and the button 130, etc. can be determined according to the height of the stepped portion 418. Figure 2 and Figure 3 In the example shown, the stepped portion 418 is formed at a lower position at the center of the cover body 410. The stepped portion 418 can serve to strengthen the strength of the cover body 410, and since the pump module 500 is disposed at the stepped portion 418, the relative position of the pump module 500 and the button 130, etc. can be determined according to the height of the stepped portion 418.

[0068] The body side wall 422 can protrude upward from the outer side of the cover body 410 by a predetermined length. The edge 423 can protrude outward in the horizontal direction from the upper portion of the body side wall 422, and the outer side frame 430 can protrude downward from the outer side of the edge 423 by a predetermined length. The edge 323 of the holder 300 can be inserted and coupled in the gap between the body side wall 422 and the outer side frame 430.

[0069] A locking groove 436 and a sawtooth 476 can be formed on the outer circumferential surface of the outer side frame 430. The locking protrusion 176 of the shoulder 170 can be inserted into the locking groove 436 of the outer side frame 430 so that the inner cover 400 is coupled with the shoulder 170, and the sawtooth 476 of the outer side frame 430 can engage with the sawtooth of the inner circumferential surface of the shoulder 170 so that the rotational force applied to the shoulder 170 is transmitted to the inner cover 400.

[0070] An internal thread 438 can be formed on the inner circumferential surface of the outer side frame 430. The internal thread 438 of the outer side frame 430 can engage with the external thread 118 of the upper portion of the outer container 110 so that the inner cover 400 is detachably coupled to the outer container 110. As needed, a boss 425 can be formed on the outer side frame 430.

[0071] The support side wall 433 can protrude upward from the cover body 410 and / or the edge 423 by a predetermined length. The support side wall 433 can be formed at a position corresponding to the side wall 133 of the button 130 to support the button 130 in such a manner that the button 130 can move up and down at a predetermined position. For example, as shown in Figure 3In the illustrated example, the outer circumferential surface of the support shaft 434 is positioned to contact the inner circumferential surface of the support shaft 134 of the button 130.

[0072] The support shaft 434 can protrude upward from the cover body 410 and / or the rim 423 in the shape of a cylinder by a predetermined length. The support shaft 434 can be formed at a position corresponding to the support shaft 134 of the button 130 to support the button 130 in such a manner that the button 130 can move up and down at a predetermined position. Unlike the support side wall 433, the support shaft 434 can prevent the button 130 from rotating in place. In Figure 2 and Figure 3 In the illustrated example, three support shafts 134, 434 are formed in the button 130 and the inner cover 400, respectively, and the outer circumferential surface of the support shaft 434 of the inner cover 400 is positioned to contact the inner circumferential surface of the support shaft 134 of the button 130. In some embodiments, the positions and structures of the support side wall 433 and the support shaft 434 can be changed, and in particular, the support side wall 433 can be omitted when the support shaft 434 is provided.

[0073] The pump module 500 can be configured to be disposed adjacent to the holder passage 315 of the holder 300 and the cover passage 415 of the inner cover 400 to discharge the contents stored in the storage space 215 to the outside of the discharge hole 139 of the button 130 when the button 130 is pressed. In some embodiments, the pump module 500 can be formed of a combination of materials such as PP (Polypropylene) and TPE (Thermoplastic elastomer). It is noted that the present disclosure is not limited in relation to the material of the pump module 500. Referring to Figure 5 The pump module 500 can include a pump cylinder 510, a pump shoulder 520, a pump rod 540, an elastic member 550, a pump piston 560, and a pump valve 580.

[0074] The pump cylinder 510 has an inner space 515 opened upward formed therein, and an inflow hole 512 formed at a lower portion to communicate the inside and outside of the pump cylinder 510. When the pump module 500 is installed at a predetermined position of the inner cover 400, the lower portion of the pump cylinder 510 can be inserted into the storage space 215 of the inner container 210 as Figure 3 The inflow hole 512 can communicate the storage space 215 of the inner container 210 and the inner space 515 of the pump cylinder 510.

[0075] A locking protrusion 516 can be formed at an upper portion of the pump cylinder 510. When the pump shoulder 520 is coupled to the pump cylinder 510, the locking protrusion 516 can be inserted into a locking groove 526 of the pump shoulder 520 to firmly couple the pump cylinder 510 and the pump shoulder 520 and to enhance the sealing performance.

[0076] A flange 518 can be formed at a designated position on the outer circumferential surface of the pump cylinder 510. The flange 518 can be formed to have an inner diameter corresponding to the outer diameter of the alignment protrusion 412 of the inner cover 400. In order to enhance the sealing performance of the pump cylinder 510 and the pump shoulder 520, a sealing member (not shown) can also be added between the flange 518 of the pump cylinder 510 and the outer side frame 524 of the pump shoulder 520.

[0077] The pump shoulder 520 is formed with a passage through which the pump rod 540 can pass at the inner side, and is coupled to the open upper portion of the pump cylinder 510 to function to seal the inside of the pump module 500 while allowing the pump rod 540 to move in the vertical direction. The pump shoulder 520 can generally include an inner side support portion 522, a rim 523, and an outer side frame 524.

[0078] The inner side support portion 522 of the pump shoulder 520 can have a hollow cylindrical shape. The inner side support portion 522 is a portion that interfaces with the pump rod 540, and can make surface contact with the pump rod 540 over a predetermined length. As described above, the inner side support portion 522 can seal the inside of the pump module 500 while allowing the pump rod 540 to move in the vertical direction. The rim 523 can protrude in the horizontal direction from the upper portion of the inner side support portion 522 toward the outside, and the outer side frame 524 can protrude downward from the outside of the rim 523 by a predetermined length. Due to this structure, a gap can be formed between the inner side support portion 522 and the outer side frame 524, and the upper portion of the pump cylinder 510 can be inserted into and coupled to the gap.

[0079] The rim 523 can provide a flat surface for supporting the lower end of the elastic member 550. On the upper surface of the rim 523, a fixing protrusion 529 can be formed around the passage, and the fixing protrusion 529 can be implemented as a ring-shaped protrusion having an outer diameter corresponding to the inner diameter of the lower end of the elastic member 550. The lower end of the elastic member 550 can be coupled to the circumference of the fixing protrusion 529, and thus the fixing protrusion 529 can align the elastic member 550 to a prescribed position.

[0080] The inner circumferential surface of the outer side frame 524 is formed with a locking groove 526, and the locking protrusion 516 of the pump cylinder 510 can be inserted into the locking groove 526 of the outer side frame 524. The locking protrusion 516 and the locking groove 526 can help to enhance the coupling between the pump cylinder 510 and the pump shoulder 520, and more strongly seal the inside of the pump module 500.

[0081] The pump rod 540 can have a hollow cylindrical shape, and can have a structure in which a flange 543 protrudes outward at the upper portion thereof. The lower surface of the flange 543 can be in contact with the elastic member 550. A coupling groove 546 into which the upper end of the elastic member 550 can be inserted can also be formed on the lower surface of the flange 543.

[0082] The upper and lower portions of the pump rod 540 can be open to form the accommodation passage 545. In the upper portion of the pump rod 540, a portion of the button 130 can be inserted into the accommodation passage 545 inside the pump rod 540, and the discharge passage 565 of the pump piston 560 combined to the inside of the pump rod 540 can be connected with the discharge hole 139 of the button 130. In the lower portion of the pump rod 540, a portion of the pump piston 560 and the pump valve 580 can be inserted into the accommodation passage 545 inside the pump rod 540. On the other hand, a locking protrusion 548 can be provided on the inner circumferential surface of the accommodation passage 545 of the pump rod 540. The locking protrusion 548 can be inserted into the locking groove 568 of the pump piston 560 so that the pump rod 540 and the pump piston 560 are combined, and as a result, the pump rod 540 and the pump piston 560 can be integrated to move together.

[0083] The elastic member 550 can be positioned between the flange 543 of the pump rod 540 and the edge 523 of the pump shoulder 520 to function to elastically support and press upward the pump rod 540. When an external force is applied, the elastic member 550 can be elastically deformed while being contracted, and when the external force is removed, can return to the original state by the elastic force. The elastic member 550 can be made of a plastic material such as TPE, in which case, even if the elastic member 550 is not removed, the pump module can be recycled.

[0084] The elastic member 550 can include a soft portion 552 that is more easily elastically deformed and a reinforcing rib 555 that is not easily elastically deformed. The reinforcing rib 555 can prevent unbalanced deformation from occurring by dispersing the portion where elastic deformation occurs, and can prevent the soft portion 552 from being folded, buckling, or the like.

[0085] The pump piston 560 can include a piston body 562 inserted into the pump rod 540. The piston body 562 can have a hollow cylindrical shape to form the discharge passage 565 inside, and its upper end can be open to communicate with the inside of the pump rod 540. As described above, a portion of the button 130 can be inserted into the inside of the pump rod 540, and as a result, the discharge passage 565 can be connected with the discharge hole 139 of the button 130. On the other hand, an inflow hole 567 that communicates the outside and the inside of the piston body 562 is formed at a designated position of the piston body 562. When the button 130 is pressed and the inflow hole 567 is opened, the inflow hole 567 can communicate the inside space 515 of the pump cylinder 510 with the discharge passage 565.

[0086] A piston head 564 can be formed at the lower end of the piston body 562. The piston head 564 is a portion having a diameter larger than that of the piston body 562, and is locked to the pump valve 580 when the pump piston 560 rises so that the pump valve 580 also rises together.

[0087] The pump valve 580 can be provided to the outer circumferential surface of the piston body 562. The pump valve 580 can include a piston coupling portion 582, a bridge 583, and a cylinder coupling portion 584.

[0088] The piston coupling portion 582 is a portion that is tightly adhered to the outer circumferential surface of the piston body 562, and can have a shape similar to a hollow cylinder. The piston coupling portion 582 closes the inflow hole 567, and is lowered slightly later than the pump piston 560, thereby enabling the inflow hole 567 to be opened for a predetermined time. The upper portion of the piston coupling portion 582 can be inserted into a gap formed between the pump rod 540 and the pump piston 560.

[0089] The bridge 583 corresponds to a connecting member between the piston coupling portion 582 and the cylinder coupling portion 584. When the pump piston 560 is lowered, the pump valve 580 does not immediately lower together, but as the lower end portion of the pump rod 540 coupled to the pump piston 560 comes into contact with the bridge 583, the bridge 583 is pressed downward, and the pump valve 580 also lowers together.

[0090] The cylinder coupling portion 584 can have a diameter greater than that of the piston coupling portion 582 and be provided around the piston coupling portion 582. The cylinder coupling portion 584 can also have a shape similar to a hollow cylinder, and the outer circumferential surface thereof can be tightly adhered to the inner circumferential surface of the pump cylinder 510. Due to the frictional force between the cylinder coupling portion 584 and the inner circumferential surface of the pump cylinder 510, the lowering of the pump valve 580 can be delayed when the pump piston 560 is lowered.

[0091] Thus, when the pump piston 560 is lowered, the pump valve 580 is slightly delayed in lowering due to the frictional force with the inner circumferential surface of the pump cylinder 510. Accordingly, the inflow hole 567 of the pump piston 560 is opened, so that the contents (not shown) of the inner space 515 of the pump cylinder 510 can flow into the inside of the discharge passage 565 of the pump piston 560. When the pump piston 560 is restored to the original position by the restoring force of the elastic member 550, the pump valve 580 can be caught at the piston head 564 and rise together with the pump piston 560.

[0092] The button 130 can be coupled to the upper portion of the pump module 500, and can correspond to a portion that is pressed by a user in order to activate the pump module 500. The discharge hole 139 can be formed in the button 130, and the button 130 can be coupled in such a manner that the discharge hole 139 communicates with the discharge passage 565 of the pump module 500. The button 130 can activate the pump module 500 while being lowered by the pressing of the user, and as a result, can discharge the contents originally introduced into the pump module 500 through the discharge hole 139. In some embodiments, the button 130 can be formed of a plastic material such as PP (Polypropylene), but the present application is not limited in relation to the material of the button 130.

[0093] The button 130 can have a slightly concave shape formed with a downward inclination toward the discharge hole 139, thereby preventing the contents from flowing to another place after being discharged through the discharge hole 139. A fixing protrusion for coupling with the pump module 500 can also be formed on the lower surface of the button 130. Referring to Figure 3 , the button 130 can generally include a connecting member 132, a side wall 133, and a support shaft 134.

[0094] The connecting member 132 can have a hollow cylindrical shape, and can be formed around the discharge hole 139 of the button 130 to form a passage to the discharge hole 139 on the inside. The connecting member 132 can be coupled to the upper portion of the pump rod 540 of the pump module 500 so that the discharge hole 139 is in communication with the discharge passage 565 of the pump rod 540.

[0095] The side wall 133 is a portion corresponding to the outer frame of the button 130, and can extend with a length above the moving range of the button 130. The inner circumferential surface of the side wall 133 can maintain a state of being in contact with the outer circumferential surface of the support side wall 433 of the inner cover 400, thereby allowing the button 130 to be raised and lowered from a predetermined position. At the lower portion of the side wall 133, a flange 135 can protrude toward the outside. The button 130 is supported by the pump module 500 including the elastic member 550, and the flange 135 is latched to the lug 175 of the shoulder 170, thereby preventing the button 130 from rising beyond a predetermined range even if the elastic member 550 presses the button 130 upward.

[0096] The support shaft 134 can have a hollow cylindrical shape, and can protrude downward from the lower surface of the button 130 by a predetermined length. The support shaft 134 can be formed at a position corresponding to the support shaft 434 of the inner cover 400 so that the button 130 can be moved up and down from a predetermined position. Although Figure 3 An example in which the outer circumferential surface of the support shaft 434 of the inner cover 400 is in contact with the inner circumferential surface of the support shaft 134 of the button 130 is shown, but the support shaft 434 of the inner cover 400 can of course be configured to have a hollow shape, and the inner circumferential surface of the support shaft 434 of the inner cover 400 can be in contact with the outer circumferential surface of the support shaft 134 of the button 130.

[0097] The valve 150 is a member installed to the discharge hole 139 of the button 130, and can function to open and close the discharge hole 139 in a manner that allows the contents (not shown) to flow in only one direction. As Figure 3As shown, the valve 150 can be formed with a disc at the upper portion, and a locking portion at the lower portion, and the disc portion of the valve 150 can close the discharge hole 139 by gravity. When the user operates the button 130, the pump module 500 discharges the contents, and the valve 150 is lifted due to the pressure of the contents, so that the discharge hole 139 is opened, and the contents can be discharged through the discharge hole 139 to the upper surface of the button 130. At this time, the locking portion of the valve 150 prevents the valve 150 from being separated from the discharge hole 139. When the pressing of the button 130 is released, the valve 150 is lowered again to close the discharge hole 139, and the contents and other foreign matters discharged to the upper surface of the button 130 are prevented from flowing again into the inside of the discharge container 100 through the discharge hole 139.

[0098] The shoulder 170 can be coupled to the inner cover 400 to fix the button 130. A through hole can be formed at the upper portion of the shoulder 170, and the button 130 can be exposed to the outside through the through hole of the shoulder 170 as shown. Figure 3 In some embodiments, the shoulder 170 can be formed of a plastic material such as polypropylene (PP), or the same material as the inner container 210, the holder 300, etc. It should be noted that the present application is not limited in relation to the material of the shoulder 170. The shoulder 170 can generally include a band portion 171 and an arched portion 172.

[0099] The band portion 171 can be configured to surround the circumference of the outer side frame 430 of the inner cover 400. The locking protrusion 176 and the sawteeth can be formed on the inner circumferential surface of the band portion 171. The locking protrusion 176 of the shoulder 170 can be inserted into the locking groove 436 of the outer side frame 430, so that the inner cover 400 is coupled to the shoulder 170, and the sawteeth of the inner circumferential surface of the shoulder 170 can be engaged with the sawteeth 476 of the outer side frame 430, so that the rotational force applied to the shoulder 170 is transmitted to the inner cover 400. The outer circumferential surface of the band portion 171 can be exposed to the outside to form a part of the appearance of the refillable discharge container 100.

[0100] The arched portion 172 can be formed above the band portion 171, and include a lug 175 protruding inwardly at the upper portion thereof to prevent the button 130 from being separated from the predetermined position. That is, the lug 175 can protrude inwardly in such a manner that a through hole through which the button 130 can pass is formed at the inner side, and a portion in which the flange 135 of the button 130 is locked is formed to prevent the button 130 from being lifted above the predetermined height.

[0101] In Figures 1 to 3In the illustrated example, the band portion 171 forms a portion of the appearance of the refillable discharge container 100, and the arched portion 172 is accommodated in the upper cover 190. To this end, the arched portion 172 can be formed to have a diameter smaller than that of the band portion 171, and the difference in diameter can correspond to the thickness of the upper cover 190. Due to the difference in diameter of the band portion 171 and the arched portion 172, a boss 173 can be formed therebetween, and when the upper cover 190 is coupled, the inner circumferential surface of the upper cover 190 can be supported on the outer circumferential surface of the arched portion 172, and the lower end of the upper cover 190 can be supported on the boss 173. As Figure 3 As illustrated, the position and shape of the boss 425 formed in the inner cover 400 can be formed to correspond to the corner of the inner side of the boss 173 of the inner side of the shoulder 170.

[0102] One or more locking protrusions 174 can be formed on the outer circumferential surface of the arched portion 172. As illustrated, the locking protrusions 174 of the arched portion 172 can be point-shaped protrusions protruding from one place, or can be linear protrusions extending along all or a portion of the outer circumferential surface. The locking protrusions 174 of the shoulder 170 are inserted into the locking grooves 194 of the upper cover 190, so that the upper cover 190 can be coupled to the shoulder 170.

[0103] The shoulder 170 can be coupled to the inner cover 400 so as to function to fix the button 130 to a predetermined position. In some embodiments, the shoulder 170 and the inner cover 400 can be implemented as one member. In this case, the structure of the button 130 can also be slightly modified for coupling with the shoulder 170.

[0104] The upper cover 190 corresponds to a cover covering the button 130, and can be detachably coupled to the shoulder 170. As described above, the locking grooves 194 into which the locking protrusions 174 of the shoulder 170 are inserted can be formed on the inner circumferential surface of the upper cover 190. In the state in which the upper cover 190 is coupled, the lower portion of the upper cover 190 can be supported by the outer circumferential surface of the arched portion 172 and the boss 173 of the shoulder 170, and can be fixed to a corresponding position by the locking protrusions 174. Figure 1 (a) of FIG. 1 illustrates a state in which the upper cover 190 is coupled in the refillable discharge container 100, Figure 1 (b) of FIG. 1 illustrates a state in which the upper cover 190 is separated for use. In some embodiments, the upper cover 190 can be formed of a plastic material such as PETG (polyethylene terephthalate glycol-modified), but the present application is not limited in relation to the material of the upper cover 190.

[0105] When a user desires to use the refillable discharge container 100, the user can first separate the upper cover 190 as illustrated in (b) of FIG. 1, and then insert the button 130 into the inner cover 400 as illustrated in (a) of FIG. 1. Figure 1The upper cover 190 is separated from the lower cover 190 as shown in (b) to expose the button 130. The user can press the button 130, and as the button 130 is pressed downward, the pump module 500 coupled to the lower portion of the button 130 is activated. As the pump rod 540 and the pump piston 560 of the pump module 500 descend, the inflow hole 567 is opened, and the contents originally in the inner space 515 of the pump cylinder 510 can be discharged through the inflow hole 567 and the discharge passage 565 to the discharge hole 139, and provided to the upper surface of the button 130. The user can use the contents thus discharged according to the purpose of use.

[0106] When the user releases the pressing of the button 130, the elastic restoring force exerted by the elastic member 550 of the pump module 500 causes the pump rod 540 to ascend again, and the button 130 coupled thereto and the pump piston 560 ascend together. As the pump piston 560 ascends, the inflow hole 567 is closed by the pump valve 580. In addition, as the pump piston 560 ascends, the pressure of the inner space 515 of the pump cylinder 510 decreases, and due to the negative pressure thus generated, the contents in the storage space 215 of the inner container 210 are compensated to the inner space 515 of the pump cylinder 510. This, in turn, causes the pressure of the storage space 215 of the inner container 210 to decrease, and due to the negative pressure thus generated in the storage space 215, the piston 220 disposed in the storage space 215 ascends. Although air cannot flow into the storage space 215, air can flow into the vent space 217 below the piston 220 through the vent hole 212, and thus the piston 220 can ascend.

[0107] As the refillable discharge container 100 of the present embodiment is used for a long time, the amount of the contents stored in the storage space 215 decreases, and the piston 220 ascends in the inner container 210. At the point in time when the contents are almost completely used up, the piston 220 ascends to the highest point so that the piston body 222 comes into contact with or is very close to the holder body 310, and the remaining contents are located in the recessed portion 224 of the piston 220. This structure enables the contents to be almost completely used up, and thus can prevent waste of resources.

[0108] When the contents in the inner container 210 are used up so that the necessary amount of the contents can no longer be discharged, the user can replace the inner container 210 with the refill container 200. Hereinafter, the refill container 200 of an embodiment of the present application will be described with reference to the accompanying drawings. Figures 6 to 8 The refill container 200 of an embodiment of the present application will be described.

[0109] Figure 6 and Figure 7 are respectively a perspective view and a sectional view exemplarily showing the refill container 200 of an embodiment of the present application, Figure 8 is a perspective view exemplarily showing the refill cover 250 of the refill container 200.

[0110] Referring toFigure 6 and Figure 7 The refill container 200 of an embodiment of the present application can be configured to be combined with the assembly of the inner container 210 and the holder 300 in the form of a refill cap 250. For the convenience of explanation, the assembly of the inner container 210 and the holder 300 will be referred to as a refill unit in the present specification.

[0111] The refill cap 250 can be combined with the holder 300 in the refill container 200 to function to seal the holder passage 315. Referring to Figure 8 The refill cap 250 can generally include a flat plate 260, a grip portion 262, a first plug 276, and a second plug 278.

[0112] The flat plate 260, which is the main body of the refill cap 250, can be implemented in the form of a substantially flat plate, and can have a shape corresponding to that of the holder 300. In a preferred embodiment, the diameter of the flat plate 260 can be set to be greater than the inner diameter of the side wall 322 of the holder 300, so that, when the refill cap 250 is combined, the flat plate 260 can come into contact with the edge 323 of the holder 300, and the space on the inner side of the side wall 322 of the holder 300 can be covered by the flat plate 260.

[0113] The grip portion 262 can be configured in the form of being protruded upward from the edge of the flat plate 260. The grip portion 262 is a portion protruded in such a manner that a user can easily grip the refill cap 250. In order to enable the user to more easily grip and remove the refill cap 250, a flange 263 can also be provided at the upper portion of the grip portion 262.

[0114] The first plug 276 can have a shape similar to a cylinder, and can be protruded downward from the lower surface of the flat plate 260 by a predetermined length at a position corresponding to the holder passage 315. In a preferred embodiment, the first plug 276 can be formed to have a length such that the lower end portion of the first plug 276 extends to the position of or below the lower end portion of the lower holder protrusion 312 when the refill cap 250 is combined with the holder 300.

[0115] A sealing protrusion 286 can be formed on the outer circumferential surface of the first plug 276. The sealing protrusion 286 is more easily deformed than the remaining portion when pressed, thereby enhancing the sealing performance of the first plug 276, and also increasing the frictional force between the first plug 276 and the holder protrusions 312, 314. Although not illustrated, a locking protrusion, which is locked to the shape of the lower end portion of the lower holder protrusion 312, can be provided at the lower end portion of the first plug 276.

[0116] The second plug 278 may have a shape similar to a hollow cylinder with an open lower portion, and may protrude downwardly by a predetermined length from the lower surface of the flat plate 260 at a position corresponding to the support protrusion 318 of the holder 300. In a preferred embodiment, the second plug 278 may be shaped such that when the refill cap 250 is coupled to the holder 300, the lower end portion of the second plug 278 contacts the holder body 310, and the outer circumferential surface of the second plug 278 contacts the inner circumferential surface of the support protrusion 318.

[0117] Reference Figure 7 The refill cap 250 can be combined with the refill unit, which is a component of the inner container 210 and the retainer 300, to form the refill container 200. When the refill cap 250 is combined, the first plug 276 can be inserted into the inner side of the retainer protrusions 312 and 314. Because the retainer protrusions 312 and 314 have an inner diameter that decreases toward the bottom, they can be firmly attached to the first plug 276. This firm contact not only seals the retainer channel 315 but also provides friction to prevent the refill cap 250 from being detached.

[0118] On the other hand, the second plug 278 of the refill cap 250 can be inserted into the inner side of the support protrusion 318. The second plug 278 can form another seal with the support protrusion 318 and the holder body 310. Since the refill cap 250 provides a double seal, it can effectively prevent the contents of the refill unit from leaking to the outside.

[0119] Refer to the following Figure 9 A process of replacing the refill unit of the refillable discharge container 100 with the refill container 200 according to an embodiment of the present invention will be described. Figure 9 1 is a perspective view exemplarily illustrating a replacement process of a refill unit in a refillable discharge container 100 according to an embodiment of the present invention.

[0120] First, refer to Figure 9 In (a), the user can rotate the shoulder 170 to separate the shoulder 170 while separating the upper cover 190 of the refillable discharge container 100 from which the contents have been used up. That is, since the shoulder 170 is integrated with the inner cover 400, when the user rotates the shoulder 170, the inner cover 400 can rotate together, so that the threaded connection between the inner cover 400 and the outer container 110 can be released.

[0121] Since the piston 220 can be in a state where the pump cylinder 510 is inserted into the recessed portion 224 of the piston 220 in a state where the piston 220 is maximally raised in the inner container 210 in which the contents are used, when the contents having a certain degree of viscosity are used, the contents can remain only in the inner space 515 of the pump cylinder 510 when the inner cap 400 is separated, and can hardly remain in the inner container 210. Accordingly, the user can immediately recycle the refill unit in which the contents are used up. On the other hand, when the user desires to clean the inside of the used refill unit before recycling, the holder 300 can be separated from the inner container 210 by inserting a finger or the like into the holder passage 315 of the holder 300. At this time, the support protrusions 318 and the holder protrusions 312, 314 reinforce the rigidity of the holder body 310 so that the force applied by the user can be effectively transmitted to the coupling portion of the holder 300.

[0122] Referring to Figure 9 (b), the user can pull out the refill unit corresponding to the assembly of the inner container 210 and the holder 300 from the outer container 110. As described before, since the inner container 210 is in a state of being merely rested on the outer container 110, and the holder 300 is also in a state of not being coupled to the outer container 110, the user can separate the refill unit only by lifting the refill unit in a state where the shoulder 170 and the inner cap 400 are separated. Especially, since there is a gap between the inner container 210 and the outer container 110, a vacuum is not formed, and thus the refill unit can be easily separated.

[0123] On the other hand, the user can separate the refill cap 250 from the refill container 200. At this time, the user can also separate the refill cap 250 from the refill unit by holding the holding portion 262 and / or the flange 263 of the refill cap 250 and applying a force greater than the frictional force generated between the first plug 276 and the holder protrusions 312, 314, but can reduce the frictional force by holding and tightening the holding portion 262 to deform a portion of the refill cap 250 so that a portion of the first plug 276 does not come into contact with the holder protrusions 312, 314.

[0124] Referring to Figure 9 (c), the user can insert the refill unit from which the refill cap 250 is separated from a new refill container 200 into the outer container 110 from which the refill unit in which the contents are used up is removed. As in the case of removing the refill unit, since the inner container 210 of the new refill unit has an outer diameter smaller than the inner diameter of the outer container 110, the refill unit can be easily inserted. The flange 218 of the inner container 210 of the refill unit is inserted into the L-shaped boss 114 of the outer container 110 so that the inner container 210 can be aligned to a prescribed position.

[0125] Referring to Figure 9(d), the user can combine the shoulder 170 and the inner cap 400 to the outer container 110 into which a new refill unit is inserted. That is, the inner cap 400 can be threadably combined between the inner thread 438 of the inner cap 400 and the outer thread 118 of the outer container 110 by rotating the shoulder 170. The user can rotate the shoulder 170 until the band portion 171 and the lower end portion of the outer side frame 430 are mounted to the boss 113 of the outer container 110.

[0126] Here, referring again to Figure 3 In the case where the support protrusion 318 and the upper side holder protrusion 314 are not provided on the upper surface of the holder 300, when the shoulder 170 and the inner cap 400 are re-combined to the outer container 110, there is a concern that air between the inner cap 400 and the holder 300 is pressed into the inside of the storage space 215 through the holder passage 315. When the air flows into the storage space 215, there is a concern that the contents are not uniformly discharged, and the rising of the piston 220 is hindered. However, as in an embodiment of the present application, since the support protrusion 318 and the upper side holder protrusion 314 are provided on the upper surface of the holder 300, a gap between the inner cap 400 and the holder 300 can be maintained, and air can be prevented from being pressed into the inside of the storage space 215 through the holder passage 315.

[0127] On the other hand, since the cap protrusion 416 is also inserted inside the holder protrusions 312, 314 in the state where the pump module 500 is inserted inside the cap protrusion 416, a very strong seal can be formed between the pump cylinder 510, the cap protrusion 416, and the holder protrusions 312, 314. In addition, the body side wall 422, the rim 423, and the outer side frame 430 of the inner cap 400 edge can press down the rim 323 while surrounding the side wall 322, the rim 323, and the outer side frame 324 of the holder 300 to press the holder 300 to the inner container 210, thereby a very strong seal can be formed at a portion corresponding to the combined portion between the inner container 210 and the holder 300. Such a structure of the holder 300 and the inner cap 400 can enhance the sealing performance of the inner container 210 so as to more easily maintain the vacuum state of the storage space 215, as a result, providing an effect of improving the performance of the pump module 500.

[0128] As such, the refillable discharge container 100 and the refill container 200 of the aforementioned embodiment of the present application enable the refill unit to be easily replaced while enabling the replaced refillable discharge container 100 to maintain a high performance. In addition, the refillable discharge container 100 and the refill container 200 of the embodiment of the present application can minimize the remaining amount of the contents that are not consumed, and facilitate the cleaning of the inner container 210 when necessary.

[0129] While the present application has been described with reference to one embodiment thereof, it is to be understood that variations and modifications can be affected within the spirit and scope of the application as described in the foregoing disclosure and illustrated in the accompanying drawings.

Claims

1. A refillable discharge container, characterized in that: include: an outer container having an accommodation space formed therein and open to an upper side; an inner container having a storage space formed therein and open to an upper side and inserted into the accommodating space; a retainer including a retainer body having a retainer passage extending therethrough, and a support protrusion protruding upward from an upper surface of the retainer body and coupled to the open upper portion of the inner container; an inner lid having a lid channel extending vertically therethrough formed at a position corresponding to the retainer channel, the inner lid being configured to be detachably coupled to the open upper portion of the outer container and configured to cause the retainer to press the inner container when coupled to the outer container; a shoulder having a through hole formed at an upper portion and coupled to an outer side of the inner cover; a button having a discharge hole formed at an upper portion thereof, coupled to the through hole and movable in a vertical direction, and coupled to the through hole in such a manner that a portion of the button passes through the through hole of the shoulder; as well as A pump module is configured to be adjacent to the holder passage and the cover passage and includes an elastic member to elastically support the button relative to the inner cover and discharge the contents stored in the storage space to the outside of the discharge hole when the button is pressed.

2. The refillable discharge container according to claim 1, wherein: The retainer includes a retainer protrusion that protrudes in at least one of an upward and downward direction from the retainer body to form the retainer channel inside. The inner diameter of the retainer protrusion decreases downward.

3. The refillable discharge container according to claim 1, wherein: The inner cover includes a cover protrusion that protrudes in at least one of an upward and downward direction from the cover body to form the cover passage inside. The inner diameter of the cover protrusion decreases downward.

4. The refillable discharge container according to claim 1, wherein: The device further comprises a piston, which is disposed below the contents in the storage space of the inner container and is configured to be closely attached to the inner circumferential surface of the inner container, and As the contents are discharged, the piston moves upward within the storage space.

5. The refillable discharge container according to claim 4, wherein: The piston comprises: Piston body; a recessed portion recessed downward from the piston body; and A contact portion formed on the outer peripheral surface of the piston body, and The shape of the recessed portion corresponds to the shape of portions of the holder, the inner cover, and the pump module that protrude downward from the lower surface of the holder body.

6. The refillable discharge container according to claim 1, wherein: The inner container includes a flange configured to straddle an upper portion of the outer container, and an outer peripheral surface and a lower surface of the inner container do not contact the outer container.

7. The refillable discharge container according to claim 6, wherein: A boss is formed on the inner side of the upper end of the outer container, and the flange of the inner container is placed on the boss so that the lower surface and the outer peripheral surface of the flange are in contact with the outer container.

8. A refill container for use with the refillable discharge container according to any one of claims 1 to 7, the refill container comprising: the inner container; the retainer; as well as Then install the cover, which is combined with the holder, and The refill cover comprises: a flat plate having a shape corresponding to the holder; a first plug configured to protrude downward from a lower surface of the plate at a position corresponding to the retainer passage so as to block the retainer passage when the refill cover is coupled to the retainer; a second plug configured to protrude downward from the lower surface of the flat plate in a manner adjacent to the support protrusion of the holder so as to abut against a side surface of the support protrusion when the refill cover is coupled to the holder; and A grip portion protrudes upward from the upper surface of the flat plate.

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