Content discharge container comprising blocking cap for preventing piston from being discharged

Abstract

A content discharge container according to an embodiment of the present invention comprises: an inner container accommodating content therein; an outer container accommodating the inner container; a pump assembly which is detachably coupled to the upper portion of the outer container, is partially accommodated and coupled into the inner container, and pumps and discharges the content accommodated in the inner container when being pressed; a piston which is provided in the inner container and is ascended according to the internal pressure of the inner container so that the content accommodated in the inner container is discharged through the pump assembly; and a blocking cap which is provided to be in close contact with the inner wall of the inner container and prevents the piston from being coupled to the pump assembly and being discharged from the inner container.

Description

Contents dispensing container including piston ejection prevention blocking stopper

[0001] The present invention relates to a contents discharge container, and more specifically, to a contents discharge container capable of preventing a piston from being ejected to the outside of the contents container by a blocking stopper when the contents discharge is completed and a pump assembly for refilling is separated.

[0002] Content containers have various structures depending on the formulation and method of use of the contents contained. Recently, among the various types of containers, airless containers, which do not allow air to enter the container, have been widely used.

[0003] An airless container is a device that uses the air pressure inside the container body to lift up and discharge the contents contained inside the container body. The piston inside the container body pulls up the contents upwards using the vacuum effect and discharges them.

[0004] These airless containers maintain a vacuum inside the container, preventing the contents from coming into contact with air, thereby preventing deterioration and prolonging their effectiveness. Furthermore, the contents are ejected by the rising piston within the container, offering the advantage of ensuring that the contents are completely ejected.

[0005] When the contents of an airless container such as the one described above are exhausted and a refill is required, the pump assembly attached to the container body is separated and refilled by attaching it to a new refill container.

[0006] In the case of an airless container, when the contents are discharged, the piston inside the container body is structured to rise from the inside of the container body. When all the contents are discharged and the piston rises to the top, the piston can be in close contact and connected to the lower part of the pump assembly. Therefore, when the pump assembly is separated from the container body to perform a refill, the piston that is in close contact and connected to the lower part of the pump assembly can be taken out of the container body together with the pump assembly.

[0007] In this way, if the user fails to notice during the refilling process that the piston is pressed against and engaged with the lower part of the pump assembly and is then ejected outside the container body, a problem may occur in which, after the refilling is completed, the contents are not normally discharged from the new container body due to the piston pressed against the lower part of the pump assembly.

[0008] Therefore, when separating the pump assembly from the container body after the contents are completely exhausted, the piston is tightly attached and bonded to the lower part of the pump assembly so that it does not come out of the container body, thereby solving the problem of the user not recognizing that the piston is attached to the lower part of the pump assembly during the refilling process, and there is a need to develop an airless container that allows the user to easily refill.

[0009] The present invention is intended to solve the above problem, and one embodiment of the present invention provides a contents discharge container that prevents contact between a piston and a pump assembly by providing a blocking plug on the inner wall of the inner container, or when the pump assembly is separated from the inner container and the outer container while the piston is coupled to the pump assembly, the piston is separated from the pump assembly by the blocking plug, thereby preventing the piston from being ejected to the outside of the inner container, thereby solving a problem in the refilling process that occurs because the user does not recognize that the piston is coupled to the pump assembly.

[0010] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0011] As a technical means for achieving the above-described technical tasks, a content discharge container according to an embodiment of the present invention may be provided, including: an inner container in which content is received inside; an outer container in which the inner container is received; a pump assembly detachably coupled to an upper portion of the outer container and having a portion received and coupled inside the inner container, the pump assembly pumping and discharging the content received in the inner container by pressurization; a piston provided inside the inner container, the piston moving upward according to the internal pressure of the inner container so that the content received in the inner container is discharged through the pump assembly; and a blocking stopper provided in close contact with an inner wall of the inner container, the piston being coupled to the pump assembly to block discharge from the inner container.

[0012] According to one embodiment of the present invention, the piston can be prevented from being taken out of the inner container while being coupled to the pump assembly by blocking the contact between the piston and the pump assembly by a blocking plug, or by separating the pump assembly from the inner container and the outer container while the piston is coupled to the pump assembly by the blocking plug when the pump assembly is separated. Accordingly, when the contents are completely exhausted, the pump assembly coupled to the outer container can be efficiently and easily separated.

[0013] In addition, when the contents are all used up, the pump assembly connected to the outer container is separated, the empty container is removed from the outer container, a new refill container (content container) is placed in the outer container, and the pump assembly is connected to the outer container to easily refill.

[0014] According to one embodiment of the present invention, the contents discharge container according to the present invention can discharge all contents without leaving any residue, so that the contents can be discharged separately without having to wash the contents separately, without leaving any residue in the contents container.

[0015] According to one embodiment of the present invention, the contents dispensing container according to the present invention comprises a container, a blocking stopper, and a piston made of a single material, enabling the contents to be discharged as a single unit without the need for separate disposal of the components of the container. Therefore, it is easily recyclable and environmentally friendly.

[0016] The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains from the description below.

[0017] FIG. 1 is a perspective view illustrating a contents discharging container according to an embodiment of the present invention.

[0018] Figure 2 is an exploded perspective view showing a disassembled content discharge container according to an embodiment of the present invention.

[0019] FIG. 3 is a cross-sectional view showing the inside of a contents discharge container according to an embodiment of the present invention and an enlarged view showing the joint portion of the contents device and the blocking stopper.

[0020] FIG. 4 is a cross-sectional view showing a piston rising inside a content device according to an embodiment of the present invention and coming into close contact with the lower part of a pump assembly.

[0021] FIG. 5 is a cross-sectional view showing a piston being separated from the pump assembly by a blocking plug when the pump assembly according to an embodiment of the present invention is separated from the inner container and the outer container.

[0022] FIG. 6 is a cross-sectional view and an enlarged view showing a piston according to another embodiment of the present invention first contacting a blocking plug and thus blocking contact with a pump assembly.

[0023] Figure 7 is a cross-sectional view sequentially illustrating a refilling process according to the use of a contents discharge container according to an embodiment of the present invention.

[0024] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0025] As a technical means for achieving the above-described technical tasks, a content discharge container according to an embodiment of the present invention may be provided, including: an inner container in which content is received inside; an outer container in which the inner container is received; a pump assembly detachably coupled to an upper portion of the outer container and having a portion received and coupled inside the inner container, the pump assembly pumping and discharging the content received in the inner container by pressurization; a piston provided inside the inner container, the piston moving upward according to the internal pressure of the inner container so that the content received in the inner container is discharged through the pump assembly; and a blocking stopper provided in close contact with an inner wall of the inner container, the piston being coupled to the pump assembly to block discharge from the inner container.

[0026] In addition, the blocking plug can prevent the piston from being taken out of the inner container by separating the piston from the pump assembly when the pump assembly is separated from the inner container or the outer container when the discharge of the contents is completed and the piston comes into contact with the lower part of the pump assembly.

[0027] In addition, the blocking plug is formed at a position where the lower portion is formed at a position lower than the height of the lower portion of the pump assembly accommodated in the contents, so that contact between the piston and the pump assembly can be blocked by making contact with the blocking plug before the piston comes into contact with the lower portion of the pump assembly.

[0028] In addition, an expansion portion having an inner diameter that is wider than that of the lower side is formed on the inner wall of the contents device, and the blocking plug is provided on the expansion portion of the contents device to seal a space between the expansion portion and the pump assembly.

[0029] In addition, a fixing projection is formed on the inner wall of the expansion portion, and the blocking plug has a fixing projection corresponding to the fixing projection formed on a surface that is in close contact with the inner wall of the expansion portion, and the fixing projection is coupled to the fixing projection so that the blocking plug can be fixed in close contact with the inner wall of the expansion portion.

[0030] In addition, the blocking plug is formed in a shape corresponding to the shape of the upper portion of the piston, so that when the blocking plug and the piston are in close contact, the piston can discharge the contents contained inside the container without leaving any residue.

[0031] Additionally, the blocking plug can be tightly bonded to the inner wall of the container by ultrasonic welding or force-fitting.

[0032] In addition, the pump assembly may include a housing that is at least partially accommodated and coupled to the inside of the contents container; a pump unit coupled to the housing, which is compressed and released by pressure and moves contents inside the contents container; a shoulder unit coupled to the outer periphery of the housing and having an opening formed at an upper end; and a button unit coupled to the open portion of the shoulder unit and pressurizing the pump unit.

[0033] In addition, the piston may be formed in a shape such that the shape of the upper portion corresponds to the shape of the lower portion of the housing and the pump portion, so that the piston can be coupled to the lower portion of the housing.

[0034] In addition, the piston has a bent portion formed in which the upper and lower portions are bent outward, and the bent portion is deformed inward by elastic deformation when the piston is accommodated inside the container, thereby being tightly bonded to the inner wall of the container, so that the contents can be discharged without any contents remaining inside the container.

[0035] Additionally, the contents, the blocking plug and the piston can be formed from a single material.

[0036] Below, embodiments of the present disclosure are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In addition, for the purpose of clearly explaining the present disclosure in the drawings, parts irrelevant to the description are omitted, and similar parts are designated with similar reference numerals throughout the specification.

[0037] The terms used in this disclosure are described as currently common terms, taking into account the functions mentioned herein. However, these terms may mean various other terms depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in this disclosure should not be interpreted solely based on their names, but rather based on the meanings of the terms and the overall content of this disclosure.

[0038] Additionally, while terms such as first, second, etc. may be used to describe various components, the components should not be limited by these terms. These terms are used to distinguish one component from another.

[0039] Throughout the specification, when a part is said to be "connected" to another part, this includes not only cases where it is "directly connected" but also cases where it is "indirectly connected" with another component in between. Throughout the specification, when a part is said to "include" a certain component, this does not mean that other components are excluded, but rather that other components may be included, unless specifically stated otherwise. In addition, when describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms.

[0040] The phrases “in one embodiment” and the like appearing in various places throughout this disclosure do not necessarily all refer to the same embodiment.

[0041]

[0042] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0043] Fig. 1 is a perspective view illustrating a content dispensing container according to an embodiment of the present invention. Fig. 2 is an exploded perspective view illustrating the content dispensing container according to an embodiment of the present invention in an exploded state.

[0044] Referring to FIGS. 1 and 2, a content discharge container (1000) according to one embodiment may include: a container (100) for receiving content; an outer container (200) for receiving the content; a pump assembly (300) detachably coupled to the upper portion of the outer container and partially receiving and coupled to the inside of the container, the pump assembly pumping and discharging the content received in the container (100); a piston (400) provided inside the container (100) and moving upward according to the internal pressure of the container so that the content received in the container (100) is discharged through the pump assembly (300); and a blocking plug provided so as to be in close contact with the inner wall of the container (100) to prevent the piston from being discharged from the container by being coupled to the pump assembly.

[0045] For example, the aforementioned contents may be in the form of a liquid or gel-like fluid, and may include cosmetics, pharmaceutical contents, or non-medicinal products such as toothpaste. For example, the contents may include lotion, milk lotion, moisturizing lotion, nourishing lotion, skin lotion, skin softener, skin toner, astringent, massage cream, nourishing cream, moisturizing cream, whitening essence, tone-up cream, sunscreen, sunscreen, sun milk, BB cream, base, foundation, CC cream, concealer, blusher, shading, eye shadow, eyebrow, eye cream, primer, etc., but are not limited thereto, and may include all kinds of materials that can be discharged through the pump assembly (300).

[0046] According to one embodiment, the content device (100) may be formed in the shape of a cylindrical bottle, but is not limited thereto, and various embodiments may be applied, such as being formed in the shape of a tube, jar, dispenser, compact, etc.

[0047] According to one embodiment, the aforementioned contents container (100) may be formed of a plastic material. For example, it may be formed of a polypropylene series or a polyethylene series, and specifically, it may be formed of a material such as PET, PE, PP, PCR, PETG, etc. However, it is not limited thereto, and any material that forms the shape of the contents container (100) without causing deterioration of the contents may be used. Accordingly, the contents container (100) can be recycled, thereby achieving the provision of an environmentally friendly contents discharge container (1000).

[0048] According to one embodiment, a blocking stopper (120) may be provided on the inner wall of the container (100). For example, the blocking stopper (120) may be provided so as to be in close contact with the inner wall of the container (100), so that when the pump assembly (300) is separated from the container (100) and the outer container (200) for refilling, the piston (400) may be coupled to the lower part of the pump assembly (300) and may be prevented from being ejected to the outside of the container (100).

[0049] Accordingly, the problem of the contents discharge container (1000) that has been refilled not functioning normally due to the pump assembly (300) being separated from the contents container (100) and the outer container (200) while the piston (400) remains in the contents container (100) by the blocking plug (120) and not recognizing that the piston (400) is coupled to the lower part of the pump assembly (300) during the refilling process and coupling a new refill container and the pump assembly (300) can be solved.

[0050] The method of attaching the blocking plug (120) to the inner wall of the contents device (100) and the method of blocking the piston (400) from being removed by the blocking plug (120) will be described in more detail later.

[0051]

[0052] According to one embodiment, the outer container (200) may be formed so as to accommodate the aforementioned contents (100). For example, the outer container (200) may be formed in a shape corresponding to the shape of the contents (100).

[0053] In addition, the outer container (200) may be formed in a shape with an open top and a hollow interior. Accordingly, the inner container (100) may be inserted or removed through the open top of the outer container (200) to accommodate the inner container (100) within the outer container (200), or the inner container (100) from which all contents have been discharged may be removed to replace it with a new refill container.

[0054] This outer container (200) can be formed of the same series of materials as the aforementioned inner container (100), and can be formed of a material having superior rigidity to the inner container (100).

[0055] According to one embodiment, a pump assembly (300) may be coupled to the upper portion of the outer container (200). For example, the pump assembly (300) may be screw-coupled (screw-coupled) by a screw formed on the upper outer periphery of the outer container (200).

[0056] According to one embodiment, the pump assembly (300) can discharge contents by pressurization. For example, the pump assembly (300) is coupled to the upper portion of the outer container (200), but is coupled so that a portion thereof is accommodated within the inner container (100), so that the contents accommodated in the inner container (100) can be discharged to the outside.

[0057] This pump assembly (300) may include a housing (310) that is at least partially accommodated and coupled to the inside of the container (100); a pump unit (320) coupled to the housing, which compresses and decompresses by pressure and moves the contents inside the container (100); a shoulder unit (330) coupled to the outer periphery of the housing (310) and having an open portion formed at the top, which couples and fixes the housing (310) and the pump unit (320) to the outer container (200); and a button unit (340) coupled to the open portion of the shoulder unit and pressurizing the pump unit.

[0058] The housing (310) can be coupled so that a portion thereof is accommodated on the upper inner side of the contents device (100).

[0059] According to one embodiment, a pump unit (320) coupled to the housing (310) may be positioned inside the container (100) by forming a portion of the housing (310) to be accommodated inside the container (100).

[0060] Therefore, the pump unit (320) can discharge the contents inside the contents container (100) to the outside.

[0061] This housing (310) can be coupled to the inner container (100) by a shoulder portion (330) coupled to the upper portion of the outer container (200).

[0062] According to one embodiment, a screw is formed on the shoulder portion (330) to correspond to a screw formed on the upper outer periphery of the outer container (200), so that the shoulder portion (330) can be mutually coupled to the outer container (200) by the screw. The shoulder portion (330) and the outer container (200) can be coupled by various coupling methods other than screw coupling.

[0063] In this way, the shoulder portion (330) can serve as a connecting member that can connect the housing (310) and the pump portion (320) to the contents (100).

[0064] According to one embodiment, the shoulder portion (330) may have an opening formed at the top.

[0065] According to one embodiment, a button portion (340) may be coupled to the opening portion of the shoulder portion (330). The button portion (340) may be coupled so that both lower ends are caught in the opening portion of the shoulder portion (330). Accordingly, the button portion (340) may be coupled without being detached from the shoulder portion (330).

[0066] This button portion (340) is formed to be combined with the upper part of the elastic member of the pump portion (320) described later, so that when the user presses the button portion (340), the pump portion (320) is driven to discharge the contents.

[0067] According to one embodiment, a discharge port may be formed in the central portion of the button portion (340). For example, a discharge port that penetrates vertically may be formed in the central portion of the button portion (340). However, the discharge port may be formed to coincide with a discharge path formed by the pump portion (320) described below, so that the contents discharged by the operation of the pump portion (320) may be discharged to the outside.

[0068] According to one embodiment, an outer cap (500) may be coupled to the outer side and upper side of the shoulder portion (330).

[0069] The outer cap (500) has a joining protrusion formed on a portion of the inner surface, and a joining protrusion formed on a portion of the outer surface of the shoulder portion (330) that corresponds to the joining protrusion formed on the outer cap (500) is formed so that the outer cap (500) can be joined to the shoulder portion (330).

[0070] This outer cap (500) is formed to cover the upper part of the button portion (340), so that when the contents discharge container (1000) of the present invention is not used, the button portion (340) is not exposed to the outside, thereby preventing the button portion (340) from being pressed by an external force.

[0071] According to one embodiment, a pump unit (320) may be coupled to the housing (310). For example, the pump unit (320) may be provided and coupled to the central portion of the housing (310), and as the housing (310) is accommodated inside the container (100), the lower portion of the pump unit (320) may also be formed to be accommodated inside the container (100). Accordingly, as the pump unit (320) is accommodated inside the container (100), it can discharge the contents inside the container (100).

[0072] According to one embodiment, the pump unit (320) can compress and decompress by pressurization and move contents. For example, the pump unit (320) may include a cylinder having open upper and lower portions and a hollow interior; a sealing unit at least partially inserted into the cylinder to at least partially seal the upper portion of the cylinder; a seal cap that rises and falls in close contact with the cylinder within the cylinder; a piston rod surrounded by the seal cap and rising and falling relative to the cylinder; a stem that is coupled to the piston rod and rises and falls together with the piston rod; and an elastic member that is provided between the sealing unit and the stem to provide elastic force from the sealing unit toward the stem. However, the present invention is not limited thereto, and the pump unit (320) may have any known type of pump structure, such as an airless type, a dip tube type, or a spray type.

[0073] According to an embodiment, the elastic member constituting the pump unit (320) may be a bellows-type spring in which peaks and valleys are repeatedly formed, but the sides are sealed. In this case, stem wings that support the upper end of the elastic member may be formed outwardly at the upper end of the stem, and a downward bent portion that supports the side surface of the elastic member may be formed downwardly at the outer end of the stem wings. In addition, a support groove may be formed on the upper surface of the sealing portion, into which the lower end of the elastic member is inserted, to support the lower end and the side surface of the elastic member, respectively. In addition, at least one air passage may be formed in at least one of the stem wings and the sealing portion so as to relieve the change in internal pressure when the elastic member is compressed and decompressed.

[0074] Depending on the embodiment, the pump unit (320) may be formed entirely of the same or similar material. For example, the pump unit (320) may be formed entirely of a plastic material and may not include a metal material. In particular, the elastic member included in the pump unit (320) may also be formed of a plastic material rather than a metal material. In this case, when disposing of the contents (100), the pump unit (320) alone does not need to be separated and disposed of, thereby improving the recycling rate and package reuse rate.

[0075]

[0076] FIG. 3 is a cross-sectional view showing the inside of a contents discharge container according to an embodiment of the present invention and an enlarged view showing the joint portion of the contents device and the blocking stopper.

[0077] Referring to FIG. 3, according to one embodiment, a piston (400) may be provided inside the contents container (100). For example, the piston (400) is provided at the lowest part of the contents container (100) where contents are accommodated, and contents are accommodated above the piston (400), and the piston (400) is raised by a vacuum effect resulting from the pressurization and depressurization of the pump assembly (300), and as the piston (400) rises, the contents above the piston (400) may be discharged to the outside through the pump assembly (300).

[0078] According to one embodiment, the piston (400) may be formed in a shape corresponding to the shape of the upper portion of the housing (310) and the lower portion of the pump unit (320). For example, the upper portion of the piston (400) may be formed in a shape corresponding to the shape of the lower portion of the housing (310) and the pump unit (320) so that it can be in close contact with the lower portions of the housing (310) and the pump unit (320). Accordingly, when the piston (400) is raised to the uppermost position within the inner chamber (100), it can be in close contact with the lower portions of the housing (310) and the pump unit (320) and be coupled thereto.

[0079] As described above, since the piston (400) is formed to be in close contact with the lower portion of the housing (310) and the pump unit (320), the piston (400) can rise from the inside of the inner container (100) to the top, so that the contents inside the inner container (100) are completely discharged, thereby increasing the usability of the contents discharge container (1000) according to the present invention. In addition, the inner container (100) from which all contents have been discharged can be separated from the outer container (200) and disposed of without separate washing, so that separation and disposal can be easy.

[0080] Additionally, according to one embodiment, the piston (400) may be formed of a single material with the contents (100).

[0081] In one embodiment, the piston (400) may be formed of a plastic material. For example, it may be formed of a polypropylene series or a polyethylene series, and specifically, it may be formed of a material such as PET, PE, PP, PCR, PETG, etc. However, the present invention is not limited thereto, and any material capable of functioning as the piston (400) may be used. Accordingly, the piston (400) can be recycled, thereby achieving the provision of an environmentally friendly content dispensing container (1000).

[0082]

[0083] In this way, since the contents (100) and the piston (400) are made of a single material, they can be separated and discharged together without the need to remove the piston (400) from the contents (100), thereby providing an environmentally friendly contents discharge container (1000).

[0084] According to one embodiment, the piston (400) may be formed with a bent portion (410) in which the upper and lower portions are bent outwardly. For example, the bent portion (410) may be bent so that the upper and lower portions of the piston (400) have a certain slope (inclination) outwardly.

[0085] According to one embodiment, when the piston (400) having the bent portion (410) formed is coupled to the inside of the inner container (100), the coupling can be performed in a state where a close force is applied to the inner container (100) by the bent portion (410). For example, when the piston (400) is initially coupled to the inner container (100), the piston (400) is pushed into the lower part of the inner container (100), and at this time, the bent portion (410) of the piston (400) formed in a shape that is bent outward and spread apart is deformed inward by elastic deformation, and at this time, the bent portion (410) is brought into close contact with the inner wall of the inner container (100) by the circular restoring force due to the elastic deformation, so that the piston (400) can have a close force with respect to the inner container (100).

[0086] This is because the piston (400) prevents the contents from falling out from the inside of the container (100) to the bottom of the piston (400) due to the adhesion when the contents are discharged from the inside of the container (100), so that all of the contents can be discharged without any residual amount inside the container (100), thereby providing the effect of increasing the usability of the contents discharge container (1000) of the present invention.

[0087] According to one embodiment, the content container (100) may be formed with an expansion portion (110) whose inner diameter is wider than the lower portion of the content container (100). This expansion portion (110) may be formed at a point on the inner wall of the content container (100). For example, the expansion portion (110) whose inner diameter is wider in the outward direction may be formed at the upper portion of the content container (100).

[0088] The expansion portion (110) may be formed at a point of the contents (100), and may be formed in a shape in which the inner diameter gradually widens upward from the point of the contents (100) and the inner wall of the contents (100) has a predetermined slope (gradient). The formation shape of the expansion portion (110) may be implemented in various forms.

[0089] This expansion part (110) can expand the diameter of the part where the contents (100) and the pump assembly (300) are combined, so that the pump assembly (300) can be more easily combined with and separated from the contents (100).

[0090] According to one embodiment, the expansion portion (110) of the contents device (100) may be provided with a blocking plug (120). For example, the blocking plug (120) may be provided at the section of the expansion portion (110) of the contents device (100) to seal the space between the expansion portion (110) and the housing (310) of the pump assembly (300).

[0091] According to one embodiment, the blocking plug (120) may be formed in a band shape that is coupled to the inner circumference of the inner wall of the container (100). Therefore, the blocking plug (120) formed in a band shape may be installed to surround the inner wall of the container (100) and the outer circumference of the housing (310) of the pump assembly (300) in a state where all the components of the container for discharging the contents of the present invention are coupled. Accordingly, the blocking plug (120) may prevent the piston (400) from being ejected to the outside of the container (100) without interfering with the lower portion of the pump assembly (300) being accommodated inside the container (100).

[0092] According to one embodiment, a fixing protrusion (111) may be formed on the inner wall of the expansion portion (110), and a blocking plug (120) may be formed with a fixing protrusion (121) corresponding to the fixing protrusion (111) of the expansion portion (110) on a surface that is in close contact with the inner wall of the expansion portion (110). The shape, formation position, and number of the fixing protrusion (111) and the fixing protrusion (121) may be variously modified and applied. For example, the fixing protrusion (111) may be formed in a shape with repeated unevenness, the formation positions of the fixing protrusion (111) and the fixing protrusion (121) may be switched, and at least one fixing protrusion (111) and one fixing protrusion (121) may be formed.

[0093] In this way, by joining the fixing projection (121) of the blocking plug (120) to the fixing projection (111) formed on the inner wall of the expansion portion (110), the blocking plug (120) can be fixed in close contact with the inner wall of the expansion portion (110).

[0094] According to one embodiment, the bonding of the blocking plug (120) to the inner wall of the expansion portion (110) can be achieved by the elasticity of the blocking plug (120). That is, when the blocking plug (120) is inserted into the inner wall of the expansion portion (110), a predetermined deformation occurs in the blocking plug (120) due to the elasticity of the blocking plug (120), and when the fixing protrusion (121) of the blocking plug (120) is bonded to the fixing protrusion (111) of the expansion portion (110), the deformed blocking plug (120) can be restored to its original shape and fixed in close contact with the inner wall of the expansion portion (110).

[0095] According to one embodiment, the blocking plug (120) may be formed with a shape corresponding to the shape of the upper portion of the piston (400). For example, the shape of the lower portion of the blocking plug (120) may be formed with a shape corresponding to the shape of the upper portion of the piston (400) so that the bent portion (410) of the piston (400) described above can be accommodated.

[0096] Accordingly, when the piston (400) is raised to the top inside the contents container (100), the piston (400) can discharge the contents contained inside the contents container (100) without leaving any residue as the lower part of the blocking plug (120) and the upper part of the piston (400) are in close contact.

[0097] According to one embodiment, the blocking plug (120) can be ultrasonically fused to the inner wall of the container (100). For example, since the blocking plug (120) and the container (100) are tightly bonded to each other by ultrasonic fusion, the adhesion between the blocking plug (120) and the container (100) can be further increased. In addition, the blocking plug (120) can also be forcefully joined to the container (100). When the blocking plug (120) is forcefully fitted to the container (100), a predetermined elastic deformation occurs in the blocking plug (120), and when the blocking plug (120) is joined to the container (100), the deformed blocking plug (120) can be restored to its original shape and be tightly bonded to and fixed on the inner wall of the container (100).

[0098] In one embodiment, the blocking plug (120) may be formed of a single series of materials with the contents container (100). For example, the contents container (100) and the blocking plug (120) may be formed of a PP material. In this way, the contents container (100) and the blocking plug (120) are formed of a single series of materials, enabling them to be separated and discharged together, thereby providing an environmentally friendly contents discharge container (1000).

[0099]

[0100] FIG. 4 is a cross-sectional view showing a piston rising inside the inner container according to an embodiment of the present invention and coming into close contact with the lower part of the pump assembly, FIG. 5 is a cross-sectional view showing a piston being separated from the pump assembly by a blocking plug when the pump assembly according to an embodiment of the present invention is separated from the inner container and the outer container, and FIG. 6 is a cross-sectional view and an enlarged view showing a piston according to another embodiment of the present invention first coming into contact with the blocking plug and thus being blocked from contacting the pump assembly.

[0101] Hereinafter, with reference to FIGS. 4 to 6, an embodiment of a method for preventing a piston from being moved out of a container by a blocking plug (120) will be described.

[0102] According to one embodiment of a method for preventing a piston from being moved out of a container, a blocking plug (120) may be coupled to an inner wall of the container (100), and the lower portion of the blocking plug (120) may be formed at a position higher than the height of the lower portion of the housing (310) and the pump unit (320) accommodated in the container (100).

[0103] For example, since the lower part of the blocking plug (120) is formed at a higher position than the lower part of the housing (310) and the pump part (320), when the piston (400) rises due to exhaustion of the contents, the piston (400) comes into contact with the lower part of the housing (310) and the pump part (320) to form a close contact and bond.

[0104] Thereafter, when the user separates the pump assembly (300) from the inner container (100) and the outer container (200) to perform refilling, and the housing (310) and the pump unit (320) housed inside the inner container (100) are lifted and detached from the inner container (100), the piston (400) that was in close contact with and coupled to the housing (310) and the pump unit (320) comes into contact with the blocking plug (120) and is separated from the housing (310) and the pump unit (320).

[0105] Accordingly, the piston (400) can be prevented from being ejected to the outside of the container (100) by separating the piston from the pump assembly (300) through the blocking plug (120) that is detached from the container (100).

[0106] According to another embodiment of the method for preventing the piston from being moved out of the container, the blocking plug (120) may be formed at a position where the lower end is formed at a height lower than the lower end of the housing (310) and the pump unit (320) accommodated in the container (100).

[0107] For example, since the lower end of the blocking plug (120) is formed at a lower position than the lower end of the housing (310) and the pump unit (320), when the piston (400) rises due to exhaustion of the contents, the blocking plug (120) and the piston (400) can come into contact before the piston (400) comes into contact with the housing (310) and the pump unit (320), thereby blocking the contact between the piston (400) and the pump assembly (300).

[0108] That is, in this embodiment, when the pump assembly (300) is separated from the inner container (100) and the outer container (200), the piston (400) can be prevented from being pulled out of the inner container (100) by being tightly attached and coupled to the lower part of the pump assembly (300) as the contact between the pump assembly (300) and the piston (400) is blocked.

[0109]

[0110] Figure 7 is a cross-sectional view sequentially illustrating a refilling process according to the use of a contents discharge container according to an embodiment of the present invention.

[0111] Referring to FIG. 7, according to one embodiment, the user pressurizes the pump unit (320) of the pump assembly (300) to discharge the contents.

[0112] When the contents inside the container (100) are all discharged by the user's use, the piston (400) rises to the top of the container (100). At this time, the piston (400) may be coupled to the lower part of the housing (310) and the pump part (320), or may be pressed against the lower part of the blocking plug (120).

[0113] When the user confirms that the contents have been completely exhausted and wishes to refill, the user rotates the shoulder portion (330) of the pump assembly (300) by a certain amount to release the screw connection with the outer container (200). Thereafter, the pump assembly (300) is separated from the inner container (100) and the outer container (200).

[0114] At this time, if the piston (400) is in close contact and coupled to the lower part of the housing (310) and the pump unit (320) according to one embodiment of the present invention, during the separation process for the contents (100) of the pump assembly (300), the piston (400) comes into contact with the blocking plug (120), and the close contact and coupling of the piston (400) is released and separated from the housing (310) and the pump unit (320).

[0115] Accordingly, through the above process, the piston (400) can be separated from the inner container (100) and the outer container (200) while remaining inside the inner container (100).

[0116] In addition, according to another embodiment of the present invention, the piston (400) is blocked from contact with the housing (310) and the pump unit (320) in advance by the blocking plug (120), thereby separating the pump assembly (300) in which the piston (400) is not in close contact and coupled to the lower portion from the inner container (100) and the outer container (200).

[0117] Afterwards, the pump assembly (300) removes the empty container (100) from the separated outer container (200) and places a new empty container (100) filled with contents into the outer container (200).

[0118] Afterwards, refilling can be completed by combining the existing pump assembly (300) with the inner container (100) and the outer container (200).

[0119] The contents container (100) separated from the outer container (200) due to exhaustion of contents can be separated and recycled in a clean state without any residue.

[0120]

[0121] As described above, the best practice embodiments have been disclosed in the drawings and specifications. While specific terminology has been used herein, it is solely for the purpose of describing the present invention and is not intended to limit the scope of the invention as defined in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

[0122]

[0123] (Explanation of symbols)

[0124] 1000: Contents dispensing container

[0125] 100: Contents

[0126] 110: Extension part 111: Fixed projection part

[0127] 120: Blocking plug 121: Fixing projection

[0128] 200: External container

[0129] 300: Pump assembly 310: Housing

[0130] 320: Pump section 330: Shoulder section

[0131] 340: Button section

[0132] 400: Piston 410: Bend

[0133] 500: Outer cap

Claims

1. As a container for discharging contents, A container in which contents are accommodated inside; An external container containing the above contents; A pump assembly that is detachably connected to the upper part of the outer container and has a portion accommodated and connected to the inside of the inner container, and pumps and discharges the contents accommodated in the inner container by pressurization; A piston provided inside the above contents container, which moves upward according to the internal pressure of the contents container so that the contents contained in the contents container are discharged through the pump assembly; and A contents discharge container, comprising a blocking plug that is provided to adhere closely to the inner wall of the contents container and prevents the piston from being discharged from the contents container by being combined with the pump assembly.

2. In paragraph 1, The above blocking plug is, A contents discharge container that, when contents discharge is completed and the piston comes into contact with the lower part of the pump assembly, separates the piston from the pump assembly when the pump assembly is separated from the inner container or the outer container, thereby preventing the piston from being taken out from the inner container.

3. In paragraph 1, The above blocking plug is, The lower part is formed at a position lower than the height of the lower part of the pump assembly accommodated in the above contents. A contents discharging container, characterized in that contact between the piston and the pump assembly is blocked by making contact with the blocking plug before the piston comes into contact with the lower part of the pump assembly.

4. In paragraph 1, On the inner wall of the above-mentioned content device, an extension part is formed whose inner diameter is expanded compared to the lower side, A contents discharge container, characterized in that the above blocking plug is provided in the expansion portion of the contents device and seals the space between the expansion portion and the pump assembly.

5. In paragraph 4, A fixed projection is formed on the inner wall of the above extension portion, The above blocking plug has a fixing projection formed on the surface that is in close contact with the inner wall of the expansion portion, corresponding to the fixing projection. A contents discharge container, characterized in that the blocking plug is fixed in close contact with the inner wall of the expansion portion by the above-mentioned anchoring projection being joined to the above-mentioned fixing projection.

6. In paragraph 1, The above blocking plug is, A contents discharge container characterized in that the shape of the lower part is formed in a shape corresponding to the shape of the upper part of the piston, so that when the blocking plug and the piston are in close contact, the piston discharges the contents contained inside the contents container without leaving any residue.

7. In paragraph 1, The above blocking plug is, A contents discharge container characterized in that it is tightly coupled to the contents device by ultrasonic welding or force-fitting to the inner wall of the contents device.

8. In paragraph 1, The above pump assembly, A housing in which at least a portion of the content is accommodated and joined inside the above-mentioned device; A pump unit coupled to the above housing, which compresses and releases the contents by pressurization and moves the contents inside the contents container; A shoulder part that is joined to the outer periphery of the housing and has an opening formed at the top, and that joins and fixes the housing and the pump part to the outer container; and A contents discharging container characterized by including a button portion coupled to the opening of the shoulder portion and pressurizing the pump portion.

9. In paragraph 8, The above piston, A contents discharge container characterized in that the shape of the upper part is formed in a shape corresponding to the shape of the lower part of the housing and the pump part, so that the piston can be coupled to the lower part of the housing.

10. In paragraph 1, The above piston, A folded portion is formed in which the upper and lower portions are folded outward, A contents discharge container characterized in that the above-mentioned bending part is tightly bonded to the inner wall of the contents container by being deformed inwardly by elastic deformation when the piston is accommodated inside the contents container, thereby discharging the contents without any remaining contents inside the contents container.

11. In paragraph 1, A contents discharge container, characterized in that the above contents device, blocking plug and piston are formed of a single material.

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