Container for discharging contents

Abstract

A container for discharging content according to an embodiment of the present invention comprises: a container body accommodating contents therein; a pump assembly which is detachably coupled to the upper portion of the container body and pumps and discharges contents accommodated in the container body through pressurization; and a piston which is provided in the container body and is moved upward according to the internal pressure of the container body so that the contents accommodated in the container body can be discharged through the pump assembly, wherein, when the piston is moved to the uppermost end of the container body due to the discharge of the contents, the piston can be fastened to the lower portion of the pump assembly and the pump assembly and the piston can be separated integrally from the container body. Various other embodiments identified by means of the specification may be possible.

Description

Technical Field

[0001] The present invention relates to a container for discharging content, and more specifically, to a container for discharging content in which, when discharge of content is completed, a piston inside a container body is separated from the container body integrally with a pump assembly, thereby facilitating separate disposal.Background Art

[0002] A content container has various structures depending on a formulation of content accommodated therein and a method of use.

[0003] Recently, among content containers having various structures, an airless container structure in which air is not introduced into the interior of a container has been widely used.

[0004] The airless container has a structure in which a piston provided inside a container body draws content accommodated in the container body upward and discharges the content by a vacuum effect, according to a principle in which air pressure inside the container body is used to draw up and discharge the content.

[0005] Since such an airless container maintains the interior of the container body in a vacuum state, the airless container blocks contact between the content and air, thereby preventing deterioration of the content and allowing efficacy of the content to be maintained for a long time. In addition, since the content is discharged by upward movement of the piston inside the container body, the content in the container body can be discharged without residue.

[0006] However, in the airless container as described above, when consumption of the content is completed and refilling is required, a pump assembly coupled to the container body is separated and coupled to a new refill container for use. In this case, the piston remains inside the used container body. However, when the piston is made of a material different from that of the container body, there is an inconvenience in that a user must directly separate and remove the piston from the container body.

[0007] Accordingly, there is a need to develop an eco-friendly airless container capable of easily separating and discharging a piston from a container body after consumption of content accommodated inside the container body is completed.Disclosure Technical Problem

[0008] Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the related art, and it is an objective of the present invention to provide a container for discharging content in which, when content inside a container body is completely consumed and a piston moves to an uppermost end of the container body, the piston is fastened to a lower portion of a pump assembly so that the pump assembly and the piston are integrally separable from the container body.

[0009] The objectives of the present disclosure are not limited to those mentioned above, and other objectives not mentioned herein will be clearly understood by those skilled in the art from the following description.Technical Solution

[0010] To accomplish the above-mentioned objects, according to the present invention, there is provided a container for discharging content including: a container body accommodating content therein; a pump assembly detachably coupled to an upper portion of the container body and configured to pump and discharge the content accommodated in the container body by pressurization; and a piston provided in the container body and configured to move upward according to an internal pressure of the container body so that the content accommodated in the container body is discharged through the pump assembly.Advantageous Effect

[0011] According to one embodiment of the present invention, in the container for discharging content according to the present invention, when content inside the container body is completely consumed and the piston moves to the uppermost end of the container body, the piston is fastened to the lower portion of the pump assembly, so that the pump assembly and the piston are integrally separable from the container body. Accordingly, even when the piston is formed of a material different from that of the container body, a user can easily dispose of the container body without a need to directly separate and remove the piston from the container body after the content is consumed.

[0012] Additionally, since the piston is coupled to the pump assembly and separated from the container body when the content is completely consumed, the user can easily separate the piston from the pump assembly and then couple the pump assembly to a new refill container for use.

[0013] According to one embodiment of the present invention, the container for discharging content according to the present invention is capable of completely discharging all of the content without residue, so that no residue remains in the container body and the container body can be separately discharged without a cleaning process.

[0014] According to one embodiment of the present invention, the container for discharging content according to the present invention is formed of a single material, so that the container can be discharged integrally without a need to separate individual components for disposal, thus facilitating recycling and providing an eco-friendly advantage.

[0015] The effects of the present disclosure are not limited to those described above, and other effects not described herein will be clearly understood by those skilled in the art from the following description.Description of Drawings

[0016] FIG. 1 is a perspective view illustrating a container for discharging content according to an embodiment of the present invention. FIG. 2 is an exploded perspective view illustrating the container for discharging content according to the embodiment of the present invention. FIG. 3 is a perspective view illustrating a lower portion of a pump assembly according to an embodiment of the present invention. FIG. 4 is an enlarged cross-sectional view illustrating a coupling state between a housing and a piston according to an embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view illustrating an expansion portion formed on a container body and a bent portion formed on a piston according to an embodiment of the present invention. FIG. 6 is a cross-sectional view sequentially illustrating a usage state of the container for discharging content according to an embodiment of the present invention.

[0017] In the drawings, the same or similar reference numerals may be used to denote the same or similar components.Best Mode

[0018] As technical means for achieving the objectives, a container for discharging content according to an embodiment of the present invention may include: a container body accommodating content therein; a pump assembly detachably coupled to an upper portion of the container body and configured to pump and discharge the content accommodated in the container body by pressurization; and a piston provided in the container body and configured to move upward according to an internal pressure of the container body so that the content accommodated in the container body is discharged through the pump assembly.

[0019] A piston coupling portion according to an embodiment of the present invention has at least one gap formed by cutting at least one region, and may be elastically deformed inward when coupled with the piston.

[0020] The piston according to an embodiment of the present invention, when passing through an expansion portion of the container body during upward movement caused by discharge of the content, has a reduced contact force acting on a bent portion, so that the piston can be easily separated toward an upper side of the container body.Mode for Invention

[0021] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to accompanying drawings so that the embodiments may be easily implemented by those skilled in the art. However, the present disclosure may be implemented in various ways without being limited to the embodiments. In addition, in the drawings, well-known elements or components may be omitted to avoid unnecessarily obscuring the presented embodiments, and like reference numerals denote like elements throughout the specification.

[0022] The terms including descriptive or technical terms which are used herein should be construed as having meanings that are obvious to one of ordinary skill in the art. However, the terms may have different meanings according to an intention of one of ordinary skill in the art, precedent cases, or the appearance of new technologies. Also, some terms may be arbitrarily selected by the applicant, and in this case, the meaning of the selected terms will be described in detail in the detailed description of the present invention. Thus, the terms used herein have to be defined based on the meaning of the terms together with the description throughout the specification.

[0023] Further, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another component.

[0024] Throughout the specification, when a part is described as being "connected" to another part, this includes not only a case in which the part is "directly connected" to the other part, but also a case in which the part is "indirectly connected" to the other part with another component interposed therebetween. Throughout the specification, when a part is described as "including" a component, this means that the part may further include other components unless specifically stated otherwise. Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only to distinguish a component from another component, and do not limit the essence, order, or sequence of the corresponding component.

[0025] Expressions such as "in one embodiment" appearing in various places in the present disclosure do not necessarily refer to the same embodiment.

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0027] FIG. 1 is a perspective view illustrating a container for discharging content according to an embodiment of the present invention. FIG. 2 is an exploded perspective view illustrating the container for discharging content according to the embodiment of the present invention.

[0028] Referring to FIGS. 1 and 2, a container 1000 for discharging content according to an embodiment may include a container body 100 in which content A is accommodated, a pump assembly 200 for discharging the content A accommodated in the container body 100, and a piston 300 provided in the container body 100 to allow the content A accommodated in the container body 100 to be discharged through the pump assembly 200.

[0029] For example, the content A described above may be a fluid in a liquid or gel state, and may include cosmetic preparations, pharmaceutical contents, or quasi-drugs such as toothpaste. For example, the content A may include lotion, milk lotion, moisture lotion, nourishing lotion, skin lotion, skin softener, skin toner, astringent, massage cream, nourishing cream, moisture cream, whitening essence, tone-up cream, sunscreen, sun cream, sun milk, BB cream, base, foundation, CC cream, concealer, blusher, shading product, eye shadow, eyebrow product, eye cream, primer, and the like. However, the content A is not limited thereto and may include any type of material that can be discharged through the pump assembly 200.

[0030] According to one embodiment, the container body 100 may be formed in a cylindrical bottle shape, but is not limited thereto and may be formed in various shapes such as a tube, a jar, a dispenser, or a compact.

[0031] According to one embodiment, the container body 100 may be formed of a plastic material. For example, the container body 100 may be formed of a polyethylene-based material or a polypropylene-based material, and specifically may be formed of a material such as PET, PE, PP, PCR, or PETG. However, the material is not limited thereto, and any material may be used as long as it can form a shape of the container body 100 and does not cause deterioration of the content A. Accordingly, the container body 100 may be recyclable, thereby providing an eco-friendly container 1000 for discharging content.

[0032] According to one embodiment, the pump assembly 200 may be coupled to an upper portion of the container body 100.

[0033] According to one embodiment, the pump assembly 200 may discharge the content A by pressurization. For example, the pump assembly 200 may be coupled to the container body 100 and may discharge the content A accommodated in the container body 100 to the outside.

[0034] The pump assembly 200 may include a housing 210 partially accommodated and coupled inside the container body 100, a pump unit 220 compressed and released by pressurization to move the content A inside the container body 100, and a shoulder portion 230 coupling and fixing the housing 210 and the pump unit 220 to the container body 100.

[0035] The housing 210 may be coupled such that a portion thereof is accommodated inside an upper inner portion of the container body 100.

[0036] According to one embodiment, since a portion of the housing 210 is formed to be accommodated inside the container body 100, the piston 300 to be described later may be coupled to the portion of the housing 210 accommodated inside the container body 100 (in particular, a lower portion of the housing) .

[0037] The housing 210 may be coupled to the container body 100 by the shoulder portion 230 coupled to the upper portion of the container body 100.

[0038] According to one embodiment, the shoulder portion 230 may have a screw corresponding to a screw formed on an outer upper portion of the container body 100, so that the shoulder portion 230 and the container body 100 may be coupled to each other by a screw coupling method. The shoulder portion 230 and the container body 100 may be coupled by various coupling methods other than the screw coupling method.

[0039] According to one embodiment, the shoulder portion 230 may have an accommodation space portion in which the housing 210 may be accommodated, and a separation-prevention protrusion formed therein.

[0040] Accordingly, when the shoulder portion 230 is coupled to the upper portion of the container body 100, the housing 210 is accommodated inside the accommodation space portion described above, and an upper portion of the housing 210 comes into contact with the separation-prevention protrusion, so that the housing 210 may be coupled to the container body 100 by the shoulder portion 230.

[0041] According to one embodiment, the pump unit 220 to be described later may be accommodated inside the accommodation space portion of the shoulder portion 230.

[0042] According to one embodiment, through-holes may be formed in each of the shoulder portion 230 and the housing 210. For example, through-holes may be formed in central portions of the shoulder portion 230 and the housing 210 so that the pump unit 220 of the pump assembly 200 passes through the through-holes of the housing 210 and the shoulder portion 230 and is exposed upward.

[0043] That is, through such a structure, a lower portion of the pump unit 220 is positioned inside the container body 100, and an upper portion of the pump unit 220 passes through the housing 210 and the shoulder portion 230 and is exposed to the outside to discharge the content A.

[0044] As described above, the shoulder portion 230 may serve as a coupling member capable of coupling the housing 210 and the pump unit 220 to the container body 100.

[0045] According to one embodiment, the pump unit 220 may be compressed and released by pressurization to move the content A. For example, the pump unit 220 may include: a cylinder having upper and lower ends open and having a hollow therein; a sealing portion at least partially inserted into the cylinder to at least partially seal an upper portion of the cylinder; a seal cap arranged inside the cylinder and movable upward and downward in close contact with an inner surface of the cylinder; a piston rod surrounded by the seal cap and movable upward and downward relative to the cylinder; a stem coupled to the piston rod and movable upward and downward together with the piston rod; and an elastic member provided between the sealing portion and the stem to provide an elastic force to the stem. However, the pump unit 220 is not limited thereto and may have any known pump structure, for example, an airless type, a dip tube type, or a spray type.

[0046] According to an embodiment, the elastic member constituting the pump unit 220 may be a bellows-type spring in which peaks and troughs are alternately and repeatedly formed and a side surface is sealed. In this case, a stem wing supporting an upper end of the elastic member may be formed outward at an upper end of the stem, and a downwardly bent portion supporting a side surface of the elastic member may be formed at an outer end of the stem wing. In addition, a support groove into which a lower end of the elastic member is inserted and which supports the lower end and the side surface of the elastic member may be formed on an upper surface of the sealing portion. Furthermore, at least one air passage may be formed in at least one of the stem wing and the sealing portion to relieve internal pressure variations during compression and release of the elastic member.

[0047] According to an embodiment, the pump unit 220 may be entirely formed of the same or similar material. For example, the pump unit 220 may be entirely formed of a plastic material and may not include a metal material. In particular, the elastic member included in the pump unit 220 may also be formed of a plastic material rather than a metal material. In this case, when the container body 100 is discarded, it is not necessary to separately discard only the pump unit 220, thereby improving a recycling rate and a package reuse rate.

[0048] According to one embodiment, the piston 300 may be provided inside the container body 100. For example, the piston 300 may be provided at a lowermost end of the container body 100 in which the content A is accommodated, and the content A may be accommodated above the piston 300. The piston 300 may be raised by a vacuum action caused by pressurization and release of the pump assembly 200, and as the piston 300 rises, the content A above the piston 300 may be discharged to the outside through the pump assembly 200.

[0049] According to one embodiment, the piston 300 may include a shape corresponding to a shape of the lower portion of the housing 210. For example, an upper portion of the piston 300 may be formed to correspond to the shape of the lower portion of the housing 210 so that the upper portion of the piston 300 can come into close contact with the lower portion of the housing 210. Accordingly, when the piston 300 rises to an uppermost position inside the container body 100, the piston 300 may come into close contact with the lower portion of the housing 210 and may be coupled thereto.

[0050] A method of integrating the piston 300 and the pump assembly 200 as described above will be described in detail below.

[0051] According to one embodiment, when all of the content A inside the container body 100 is completely discharged, the pump assembly 200 and the piston 300 are coupled to each other, and the pump assembly 200 coupled with the piston 300 may be separated from the container body 100 so that the container body 100 and the piston 300 may be separated for disposal. For example, the piston 300 gradually moves toward an upper end of the container body 100 as the content A is discharged. When the content A is completely discharged, the piston 300 moves to an uppermost end of the container body 100 and is fastened to a lower portion of the pump assembly 200 so that the pump assembly 200 and the piston 300 are integrally coupled. Thereafter, when the pump assembly 200 is separated from the container body 100, the piston 300 is separated together with the pump assembly 200 from the container body 100, thereby allowing the container body 100 and the piston 300 to be easily separated.

[0052] Accordingly, even when the piston 300 is formed of a material different from that of the container body 100, the user does not need to separately and laboriously remove the piston 300 from the container body 100 after the content A is consumed. Instead, after the pump assembly 200 to which the piston 300 is coupled is separated from the container body 100, the piston 300 is separated from the pump assembly 200, such that the container body 100 and the piston 300 may be separated for disposal. Therefore, the present invention can provide an eco-friendly container 1000 for discharging content.

[0053] Additionally, according to one embodiment, the pump assembly 200 and the piston 300 may be formed of a single material. For example, when the pump assembly 200 is formed of an olefin-based material, the piston 300 may also be formed of the same olefin-based material as that of the pump assembly 200. Since the pump assembly 200 and the piston 300 are formed of the same material, they may be separated for disposal together in a coupled state without a need to remove the piston 300 from the pump assembly 200, thereby providing a more easily separable and eco-friendly container 1000 for discharging content.

[0054] FIG. 3 is a perspective view illustrating the lower portion of the pump assembly according to an embodiment of the present invention.

[0055] Referring to FIG. 3, according to one embodiment, the housing 210 may include a piston coupling portion 211 extending from the lower portion of the housing 210.

[0056] According to one embodiment, the piston coupling portion 211 may be divided such that at least one gap 213 is formed in a portion thereof. For example, two gaps 213 may be formed, but the number of the gaps 213 is not limited thereto and may be variously configured. Due to the cut gaps 213, the piston coupling portion 211 may be tension-deformed in inward and outward directions.

[0057] According to one embodiment, the piston coupling portion 211 may be configured to include a first coupling portion and a second coupling portion based on the gap 213.

[0058] According to one embodiment, when the piston 300 moves to the uppermost end of the container body 100 due to discharge of the content A inside the container body 100, the piston 300 may be coupled to the piston coupling portion 211. For example, when the piston 300 moved to the uppermost end of the container body 100 comes into close contact with the piston coupling portion 211, a through-hole portion 320 formed in the piston 300 presses the first coupling portion and the second coupling portion of the piston coupling portion 211, and the first coupling portion and the second coupling portion are elastically deformed inward by a pressing force of the piston 300, so that the piston 300 smoothly passes through and is coupled to the piston coupling portion 211.

[0059] FIG. 4 is an enlarged cross-sectional view illustrating a coupling state between the housing and the piston according to an embodiment of the present invention.

[0060] Referring to FIG. 4, according to one embodiment, at least one coupling protrusion 212 may be formed on an outer surface of the piston coupling portion 211.

[0061] According to one embodiment, the coupling protrusion 212 formed on the piston coupling portion 211 may prevent the piston 300 from being separated from the piston coupling portion 211 when the piston 300 is coupled to the piston coupling portion 211 by upward movement of the piston 300. For example, the coupling protrusion 212 may be formed such that an outer lower portion of the piston coupling portion 211 has a diameter larger than that of another portion of the piston coupling portion 211, or may be formed as a protrusion having an uneven shape. However, the coupling protrusion is not limited thereto, and any shape may be employed as long as it can prevent separation of the piston 300 after the piston 300 is coupled to the piston coupling portion 211.

[0062] According to one embodiment, the coupling protrusion 212 may be formed to have a diameter larger than a diameter of the through-hole portion 320 of the piston 300.

[0063] Accordingly, after the through-hole portion 320 of the piston 300 passes the coupling protrusion 212, a fitting protrusion 321 formed to have a diameter larger than the diameter of the through-hole portion 320 may prevent downward movement of the piston 300, thereby enabling firm fastening between the piston 300 and the housing 210.

[0064] According to one embodiment, at least one fitting protrusion 321 may be formed in a portion of the through-hole portion 320 of the piston 300. For example, the fitting protrusion 321 may be formed in the same shape as the coupling protrusion 212 of the piston coupling portion 211 to correspond thereto.

[0065] That is, a diameter at a certain point inside the through-hole portion 320 of the piston 300 may be formed to be larger than a diameter of another portion thereof, or an uneven protrusion shape may be formed thereon. However, the configuration of the through-hole portion is not limited thereto, and any shape may be employed as long as it can prevent separation of the piston 300 after the piston 300 is coupled to the piston coupling portion 211.

[0066] Accordingly, as the coupling protrusion 212 and the fitting protrusion 321 are engaged with each other, mutual separation between the piston coupling portion 211 and the piston 300 may be prevented.

[0067] FIG. 5 is an enlarged cross-sectional view illustrating an expansion portion formed on the container body and a bent portion formed on the piston according to an embodiment of the present invention.

[0068] According to one embodiment, the piston 300 may include bent portions 310 formed at upper and lower ends thereof and bent outward. For example, the bent portions 310 may be bent such that the upper and lower ends of the piston 300 have a predetermined inclination outward.

[0069] When the piston 300 having the bent portions 310 according to one embodiment is coupled inside the container body 100, the piston 300 may be coupled in a state in which a close contact force acts on the container body 100 by the bent portions 310. For example, when the piston 300 is initially coupled to the container body 100, the piston 300 is pushed into the lower portion of the container body 100. At this time, the bent portions 310 of the piston 300, which are bent outward and formed in a flared shape, are deformed inward by elastic deformation. Due to a restoring force generated by the elastic deformation, the bent portions 310 come into close contact with an inner wall of the container body 100, thereby allowing the piston 300 to have a close contact force with respect to the container body 100.

[0070] Accordingly, when the piston 300 rises inside the container body 100 due to discharge of the content A, the close contact force prevents the content A from escaping to a rear side of the piston 300 inside the container body 100, thereby enabling all of the content A to be discharged without residue inside the container body 100 and enhancing usability of the container 1000 for discharging content of the present invention.

[0071] According to one embodiment, the container body 100 may include an expansion portion 110 in which an inner diameter of the container body 100 expands compared to the lower portion thereof. The expansion portion 110 may be formed at one point of an inner wall of the container body 100. For example, the expansion portion 110 may be formed at the upper portion of the container body 100 such that the inner diameter expands outward.

[0072] The expansion portion 110 may be formed at one point of the container body 100, or may be formed in a shape in which the inner diameter gradually increases upward from one point of the container body 100 so that the inner wall of the container body 100 has a predetermined inclination. The expansion portion 110 may be realized in various forms.

[0073] According to one embodiment, the piston 300 may be easily separated to the outside of the container body 100 by the expansion portion 110 described above.

[0074] According to one embodiment, when the piston 300 passes the expansion portion 110 of the container body 100 during an upward movement caused by discharge of the content A, the close contact force acting on the bent portion 310 may be released. For example, as described above, the piston 300 rises while being in close contact with the container body 100 by the bent portion 310, and as the piston 300 continuously rises to the uppermost end of the container body 100 and is coupled to the piston coupling portion 211, the bent portion 310 formed on an upper portion of the piston 300 passes the expansion portion 110 formed on the container body 100, so that the close contact force acting on the upper portion of the piston 300 may be released.

[0075] That is, when discharge of the content A is completed and the piston 300 is coupled to the piston coupling portion 211, the bent portion 310 formed at the upper end of the piston 300 is separated above the expansion portion 110 of the container body 100. Accordingly, when the pump assembly 200 and the container body 100 are separated, the piston 300 may also be easily separated from the container body 100.

[0076] Therefore, by the inclined structures (in particular, the expansion portion 110 and the bent portion 310) respectively formed on the container body 100 and the piston 300 as described above, the piston 300 may be easily separated from the container body 100, thereby providing the content discharge container 1000 that allows separate disposal.

[0077] FIG. 6 is a cross-sectional view sequentially illustrating a usage state of the container for discharging content according to an embodiment of the present invention.

[0078] Referring to FIG. 6, according to one embodiment, a user presses the pump unit 220 of the pump assembly 200 to discharge the content A and uses the content A contained in the container body 100.

[0079] When all of the content A inside the container body 100 is discharged by the user, the piston 300 rises to the uppermost end of the container body 100 and is coupled to the piston coupling portion 211 formed at the lower portion of the housing 210.

[0080] When discharge of the content A is completed and the piston 300 is coupled to the piston coupling portion 211 as described above, the user rotates the pump assembly 200 by a predetermined amount to release a screw coupling between the container body 100 and the pump assembly 200. Thereafter, when the user separates the pump assembly 200 from the container body 100, the piston 300 coupled to the pump assembly 200 is integrally separated from the container body 100.

[0081] After applying an external force to separate the piston 300 coupled to the pump assembly 200 from the pump assembly 200, refilling may be performed by coupling the pump assembly 200 to a new container body 100 in which the content A is accommodated.

[0082] The container body 100 from which the pump assembly 200 has been separated may be separately discharged for recycling in a clean state without residue.

[0083] As described above, preferred embodiments have been disclosed in the drawings and the specification. The embodiments described herein are used only for the purpose of describing the present invention and are not intended to limit the meaning of the present invention or to limit the scope of the present invention as set forth in the appended claims. Accordingly, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of the present invention should be defined by the technical spirit of the appended claims.[Description of Reference Numerals]

[0084] 1000:container for discharging content100:container body110:expansion portion200:pump assembly210:housing211:piston couplingportion212:coupling protrusion213:gap220:pumpunit230:shoulder portion300:piston310:bentportion320:through-hole portion321:fitting protrusionA:content

Claims

1. A container for discharging content comprising: a container body accommodating content therein; a pump assembly detachably coupled to an upper portion of the container body and configured to pump and discharge the content accommodated in the container body by pressurization; and a piston provided in the container body and configured to move upward according to an internal pressure of the container body so that the content accommodated in the container body is discharged through the pump assembly, wherein, when the piston moves to an uppermost end of the container body due to discharge of the content, the piston is fastened to a lower portion of the pump assembly so that the pump assembly and the piston are integrally separable from the container body.

2. The container for discharging content according to claim 1, wherein the pump assembly comprises: a housing at least partially accommodated and coupled inside the container body; a pump unit coupled to the housing and configured to be compressed and released by pressurization to move the content inside the container body; and a shoulder portion configured to couple and fix the housing and the pump unit to the container body.

3. The container for discharging content according to claim 2, wherein the housing comprises a piston coupling portion extending downward, and wherein, when the piston moves to the uppermost end of the container body due to discharge of the content, the piston coupling portion is inserted into at least a portion of the piston.

4. The container for discharging content according to claim 3, wherein the piston coupling portion has at least one gap formed by cutting at least one region thereof, and wherein the piston coupling portion is elastically deformed inward when coupled with the piston.

5. The container for discharging content according to claim 3, wherein the piston is formed in a shape corresponding to a shape of a lower portion of the housing, and a through-hole portion configured to be fitted with the piston coupling portion is formed at a central portion of the piston.

6. The container for discharging content according to claim 5, wherein at least one coupling protrusion is formed on the piston coupling portion, wherein at least one fitting protrusion is formed on the through-hole portion, and wherein when the piston coupling portion is inserted into the through-hole portion, the fitting protrusion is fastened to the coupling protrusion.

7. The container for discharging content according to claim 1, wherein the piston comprises bent portions formed at an upper end and a lower end thereof and bent outward, and wherein, when the piston is accommodated inside the container body, the bent portions are elastically deformed inward and are closely coupled to the container body.

8. The container for discharging content according to claim 7, wherein the container body comprises an expansion portion formed on an inner wall thereof and having an inner diameter larger than that of a lower side thereof.

9. The container for discharging content according to claim 8, wherein, when the piston passes the expansion portion during an upward movement caused by discharge of the content, a close contact force acting on the bent portions is weakened, thereby facilitating separation toward an upper side of the container body.

10. The container for discharging content according to claim 1, wherein the container body is formed of a plastic material.

11. The container for discharging content according to claim 1, wherein the piston and the pump assembly are formed of the same material.

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