Cosmetic container and pumping device of cosmetic container

Abstract

Provided is a pumping device of a cosmetic container. In order to reduce the number of components and simplify the inner structure thereof, the pumping device comprises: a housing tightly fitted in an opening of a container body and having a hole that is formed in a central portion and communicates with the inside of the container body; a pumping member that is coupled to the housing, connected to the hole in the housing, forms a space for accommodating contents therein, and is elastically compressed or expanded along an axial direction to convey the contents in one direction along the axial direction; a nozzle member that is coupled to the pumping member, has therein a pipe passage through which the contents are moved, thereby connecting the pumping member and an outlet of a discharge head, presses the pumping member in response to a manipulation of the discharge head, and selectively connects and disconnects an inner pipe passage and the inner space of the pumping member; and a check valve that is mounted in the hole of the housing and selectively opens and closes the hole according to the operation of the pumping member to make the contents flow in one direction from the container body to the inside of the pumping member.

Description

Cosmetic containers and pumping devices for cosmetic containers

[0001] The present disclosure relates to a cosmetic container and a pumping device provided in the cosmetic container for discharging contents.

[0002] For example, liquid cosmetics are stored in containers and dispensed when needed. A pumping device is installed inside the liquid cosmetics container to pump the contents and discharge them to the outside. The pumping device is pressed by an external force from the user, pumping the contents and discharging them through the container outlet.

[0003] The pumping mechanism of cosmetic containers is complex in structure and contains numerous parts, making assembly cumbersome and increasing the manufacturing cost of cosmetic containers. Furthermore, the complex structure and shape of the pumping element make it difficult to injection mold using the eco-friendly materials typically used in cosmetic containers.

[0004] Accordingly, the applicant has developed a pumping member for a cosmetic container that improves upon the conventional pumping structure and allows for easier manufacturing. Korean Patent No. 10-2572953 discloses a cosmetic container and a pumping member for a cosmetic container developed and patented by the applicant.

[0005] With the gradual increase in cosmetics usage, the need for cosmetic containers that offer a satisfactory pumping action while also being more affordable is growing. To meet this need and the competitive market environment, there is a growing demand for pumping devices that are easier to manufacture, have a simpler structure, and still effectively dispense contents, as well as cosmetic containers utilizing these devices.

[0006] This project aims to provide a cosmetic container and a pumping device for the cosmetic container with a simpler internal configuration by reducing the number of parts.

[0007] This project aims to provide a cosmetic container and a pumping device for a cosmetic container with an improved structure that makes it easier to manufacture.

[0008] This project aims to provide a cosmetic container and a pumping device for the cosmetic container that enable smoother pumping operation.

[0009] The cosmetic container of the present embodiment may include a container body that holds contents, a pumping device that is coupled to an upper opening of the container body and discharges contents held in the container body through a pumping action due to its own elasticity, and a discharge head that is connected to the pumping device to apply discharge pressure to the pumping device and has an outlet on one side that is connected to the pumping device and through which contents are discharged.

[0010] The above pumping device may include a housing that is closely mounted to the opening and has a hole formed in the center thereof that communicates with the inside of the container body, a pumping member that is coupled to the housing and is connected to the hole of the housing and forms a space for receiving contents therein, and is elastically compressed or expanded along the axial direction to transport the contents in one direction along the axial direction, a nozzle member that is coupled to the pumping member and forms a conduit through which the contents move therein, connects between the pumping member and the outlet of the discharge head, compresses the pumping member according to the operation of the discharge head, and selectively opens and closes the internal conduit and the internal space of the pumping member, and a check valve that is installed in the hole of the housing and selectively opens and closes the hole according to the operation of the pumping member to unidirectionally introduce the contents from the container body into the pumping member.

[0011] The above pumping device may have a structure in which the area between the open lower end of the pumping member and the housing forms an internal space of the pumping member.

[0012] The above pumping member is installed in communication between the container body that stores the contents of the cosmetic container and the discharge head that discharges the contents, forms a space for receiving the contents inside, and may be made of a non-metallic elastic material so as to transfer the contents to the discharge head through a pumping action by elastic compression or expansion along the axial direction.

[0013] The pumping member may include a pressure portion that forms an internal space between the housing and the pumping member and is compressed and elastically restored by an external force to vary the pressure of the internal space; a flange that extends downward from the lower outer surface of the pressure portion and is closely attached to a groove provided in the housing; an insertion portion that is formed on the upper side of the pressure portion and is combined with the nozzle member and installed at the lower end of the discharge head; a blocking member that is formed on the inner side of the lower end of the insertion portion and forms a passage through which contents are discharged, is elastically formed to have an inner diameter that is closely attached to the nozzle member and blocks the pressure portion and an internal conduit of the nozzle member; and an expansion portion that is formed on the insertion portion and elastically expands according to the operation of the discharge head to open and close a gap between the blocking member and the nozzle member.

[0014] The above pumping member may be formed of silicone, rubber or synthetic resin material.

[0015] The above pressure section may be a Javara structure formed by continuously bending multiple folds.

[0016] The pressure portion may further include a circular portion that protrudes outward along the circumference from the upper portion and comes into contact with the pressure portion when compressed.

[0017] The housing may have a structure in which the flange is installed by being closely fitted into the groove, including a groove formed by an outer wall protruding upward around the hole and supporting an outer surface of a flange at the lower end of the pumping member, and an inner wall protruding upward and spaced apart from the outer wall and supporting an inner surface of the flange.

[0018] The above housing may further include a valve mounting portion formed to protrude upward along the periphery of the hole and into which the check valve is inserted and installed.

[0019] The above nozzle member may include a nozzle body having a conduit formed therein through which contents are transferred and is fitted into the inner upper part of the insertion part of the pumping member and is closely coupled thereto to communicate with the outlet of the discharge head, an insertion part formed at the lower end of the nozzle body and inserted into a blocking part of the insertion part, an inlet hole formed on a side of the insertion part to communicate the conduit and the inside of the insertion part, and an additional part protrudingly formed on the outer surface of the lower end of the insertion part and closely attached to the inner surface of the blocking part to block between the insertion part and the elastic part.

[0020] The above nozzle member may further include an auxiliary check valve installed inside the nozzle body to selectively block the pipe and discharge the contents in one direction toward the discharge head.

[0021] According to this implementation example, the structure of the pumping member is improved to further reduce the number of components, thereby simplifying the overall internal configuration of the device for pumping.

[0022] The pumping device's structure has been simplified, making it easier to manufacture and assemble. This increases productivity and reduces manufacturing costs, enhancing product price competitiveness.

[0023] By preventing the pressure section from being pressed too rapidly when the disc contacts the pressure section during pumping, smooth operation is possible, enhancing user experience. Furthermore, by preventing the pressure section from being pressed beyond its elastic recovery limit by the disc, the pressure section smoothly returns to its original state after being pressed, preventing malfunctions.

[0024] Fig. 1 is a cross-sectional view showing the overall configuration of a cosmetic container according to the present embodiment.

[0025] Fig. 2 is a cross-sectional view illustrating a pumping device of a cosmetic container according to the present embodiment.

[0026] Figures 3 and 4 are schematic drawings showing each component of the pumping device according to the present embodiment.

[0027] Figure 5 is a schematic drawing showing a pumping member of a pumping device according to another embodiment.

[0028] FIG. 6 is a cross-sectional view illustrating a pumping device of a cosmetic container having a pumping member according to the embodiment of FIG. 5.

[0029] Hereinafter, embodiments of the present invention will be described in detail. However, these are presented by way of example only and are not intended to limit the present invention. The present invention is defined solely by the scope of the claims set forth below. The embodiments described below may be modified in various ways without departing from the spirit and scope of the present invention. Wherever possible, identical or similar parts are indicated in the drawings using the same reference numerals.

[0030] The terminology used below is for the purpose of describing specific embodiments only and is not intended to limit the present invention. As used herein, the singular forms "singular" and "comprising" include plural forms as well, unless the context clearly dictates otherwise. The word "comprising" as used herein specifies a particular feature, region, integer, step, operation, element, and / or component, but does not exclude the presence or addition of other specific features, regions, integers, steps, operations, elements, components, and / or groups.

[0031] In the description of this embodiment, expressions such as top, bottom, front, back, first, second, one side, other side, etc. indicate relative positions, directions, or orders, and their technical meanings are not bound by dictionary meanings.

[0032] Fig. 1 illustrates the overall configuration of a cosmetic container according to the present embodiment, and Fig. 2 illustrates the upper configuration of the cosmetic container, including the pumping device according to the present embodiment. In addition, Figs. 3 and 4 illustrate each component of the pumping device.

[0033] In the following description, the axial direction means the y-axis direction in Fig. 1, which is the direction through which the central axis passes. When a cosmetic container is placed on the floor as in Fig. 1, the upper side along the y-axis direction is referred to as the upper, upper, or up direction, and the opposite side, the lower side, is referred to as the lower, lower, or down direction.

[0034] As illustrated, the cosmetic container of the present embodiment may include a container body (100) that accommodates contents, a pumping device (200) that is coupled to an upper opening (110) of the container body (100) and discharges contents accommodated in the container body (100) through a pumping action due to its own elasticity, and a discharge head (300) that is connected to the pumping device (200) to apply discharge pressure to the pumping device (200) and has an outlet (320) at the upper end that communicates with the pumping device (200) and through which contents are discharged.

[0035] The container body (100) may be a tubular structure having a space therein for containing contents. The interior space of the container body (100) may be filled with various types of cosmetics (hereinafter referred to as "contents"). In addition to cosmetics, the contents may be non-medicinal products such as disinfectants or daily necessities such as detergents. The shape of the container body (100) may be modified in various ways.

[0036] The container body (100) forms an opening (110) at the top. The upper opening (110) of the container body (100) is connected to a pumping device (200). Accordingly, the contents contained inside the container body (100) are discharged from the opening (110) by the pumping device (200) and discharged to the outside through the discharge head (300).

[0037] Drawing symbol (130) is an upper cap for covering and protecting the discharge head (300).

[0038] The cosmetic container of the present embodiment may further include a piston member (120) inside the container body (100). The piston member (120) is installed so as to be in close contact with the inner surface of the container body (100) and to be slidable along the inner surface. As the contents of the container body (100) are discharged by the pumping device (200), the piston member (120) rises toward the opening. At this time, since external air is introduced through the hole formed in the bottom of the container body (100), the piston member (120) can rise smoothly and the outer shape of the container body (100) can be maintained. As the piston member (120) rises toward the opening (110) of the container body (100) according to the amount of contents discharged, the internal pressure of the container body (100) is maintained constant. In addition, the contents of the container body (100) are pushed toward the opening by the piston member (120) and can be smoothly discharged through the opening later.

[0039] A pumping device (200) can be detachably coupled to the upper opening (110) of the container body (100). For example, a male screw is formed on the outer surface of the upper opening of the container body (100), and the pumping device (200) can be installed in close contact with the upper portion of the opening (110) by a separate fastening member (170) that is screw-fastened to the male screw on the upper portion of the container body. The coupling structure between the pumping device (200) and the container body (100) can be modified in various ways.

[0040] The discharge head (300) is coupled to the pumping device (200) and applies pressure to the pumping device (200) to drive the pumping device (200). In the present embodiment, the discharge head (300) may have a structure that drives the pumping device (200) by being pressed up and down.

[0041] The discharge head (300) of the present embodiment is a circular structure, and is installed so as to be able to move up and down by being fitted into the upper inner side of the fastening member (170). The upper surface of the discharge head (300) may be formed to be concave downward. A plurality of outlets (320) through which contents are discharged may be arranged and formed in the central portion of the discharge head (300). The outlets (320) are connected to the pumping member (200), and the contents are discharged to the outside through the outlets (320).

[0042] Accordingly, when the user presses the discharge head (300), the discharge head (300) applies pressure to the pumping device (200) to drive the pumping device (200). Accordingly, the contents discharged by the pumping device (200) are discharged through the outlet (320) of the discharge head (300). The shape of the discharge head (300) can be modified in various ways.

[0043] The pumping device (200) is connected to the upper opening (110) of the container body (100) and transfers the contents contained in the container body (100) to the discharge head (300) according to the operation of the discharge head (300).

[0044] The pumping device (200) can discharge the contents of the container body (100) by varying the internal pressure through a pumping action based on its own elasticity.

[0045] Each component of the pumping device will be described with reference to FIGS. 2 to 5.

[0046] The pumping device (200) is closely mounted to the opening (110) of the container body (100) and has a hole (211) formed in the center thereof to communicate with the inside of the container body (100), a pumping member (220) coupled to the housing (210) and connected to the hole (211) of the housing, forming a space for receiving contents inside, and elastically compressing or expanding along the axial direction to transport the contents in one direction along the axial direction, a nozzle member (270) coupled to the pumping member (220) and forming a conduit (271) through which contents are moved inside, connecting between the pumping member (220) and the outlet (320) of the discharge head (300), and compressing the pumping member (220) and selectively opening and closing between the internal conduit (271) and the internal space of the pumping member (220) according to the operation of the discharge head (300). It may include a check valve (233) installed in a hole (211) of a housing (210) and selectively opening and closing the hole (211) according to the operation of the pumping member (220) to allow the contents to flow in one direction from the container body (100) into the pumping member (220).

[0047] Accordingly, since the check valve (233) is provided separately from the pumping member (220) and installed in the housing (210), the installation of the check valve (233) is easy, and the structure of the pumping member (220) can be further simplified.

[0048] The housing (210) is coupled to the container body (100) and operably supports each component of the pumping device (200).

[0049] The housing (210) is a circular plate-shaped structure, and a hole (211) is formed through the center thereof. The housing (210) is connected to the container body (100) through the hole (211). The housing (210) is closely mounted to the opening (110) of the container body (100). A sealing pad (180) may be further installed between the housing (210) and the upper portion of the opening (110) of the container body (100) to maintain airtightness.

[0050] A pumping member (220) is installed on the top of the housing (210).

[0051] As shown in FIGS. 2 and 3, the housing (210) is formed with an outer wall (212) and an inner wall (213) protruding upward in a circular shape around the hole (211) so that the pumping member (220) can be installed.

[0052] The outer wall (212) supports the outer surface of the flange (232) formed at the bottom of the pumping member (220), and the inner wall (213) is spaced apart from the outer wall (212) and supports the inner surface of the flange (232). The space between the outer wall (212) and the inner wall (213) forms a groove (214) into which the flange (232) of the pumping member (220) is inserted. Accordingly, the flange (232) of the pumping member (220) can be installed by being closely fitted into the groove (214) of the housing (210).

[0053] A catch (215) may be formed protrudingly on the inner surface of the outer wall (212) to prevent the flange (232) of the pumping member (220) from coming off the groove (214).

[0054] In addition, the housing (210) may further include a valve mounting portion (216) that protrudes upwardly along the periphery of the hole and into which a check valve (233) is inserted and installed. The valve mounting portion (216) is formed to have a size corresponding to that of the check valve (233), so that the check valve (233) can be tightly installed by being fitted into the inside of the valve mounting portion (216). A catch (215) may be protruded and formed on the inner surface of the valve mounting portion (216) to prevent the check valve (233) from coming off.

[0055] In this way, by providing a valve mounting portion (216) in the housing (210) and installing a check valve (233), the structure of the pumping member (220) can be further simplified. Accordingly, the pumping member (220) can be formed as a completely open, simple structure with only a flange (232) formed at the bottom without a check valve. That is, by providing some of the components formed in the conventional pumping member in the housing, the housing (210) of the present embodiment goes beyond simply supporting the pumping member (220) and is combined with the pumping member (220) to function as a part of the pumping member.

[0056] Accordingly, the pumping member (220) can be manufactured more easily, and the structure of the entire pumping device can be simplified.

[0057] In addition, the check valve (233) can be detachably installed in the valve mounting portion (216) of the housing (210), so that only the check valve (233) can be installed or replaced when necessary.

[0058] The pumping member (220) has a nozzle member (270) installed at the top, and the bottom is installed in the housing (210) and connected to the hole (211) of the housing. The pumping member (220) selectively connects between the inside of the container body (100) and the pipe (271) of the nozzle member (270) to transfer the contents to the nozzle member (270).

[0059] As shown in FIGS. 2 and 4, the pumping member (220) of the present embodiment forms an internal space between itself and the housing (210), and includes a pressure portion (231) that is compressed and elastically restored by an external force to vary the pressure of the internal space, a flange (232) that extends downward from the lower outer surface of the pressure portion (231) and is closely attached to a groove portion (214) provided in the housing (210), an insertion portion (241) that is formed on the upper side of the pressure portion (231) and is combined with the nozzle member (270) and installed at the lower end of the discharge head (300), a blocking member (243) that is formed on the inner side of the lower end of the insertion portion (241) to form a passage (242) through which the contents are discharged and is formed to have an elastically expandable inner diameter and is closely attached to the nozzle member to block the pressure portion (231) and the internal conduit (271) of the nozzle member (270), and is formed on the insertion portion (241). It may include an elastic member (244) that elastically expands and contracts according to the operation of the discharge head (300) to open and close the space between the blocking member (243) and the nozzle member (270).

[0060] The flange (232) formed at the lower end of the pumping member (220) extends downward along the axial direction to form a ring shape. The flange (232) is formed with a thickness corresponding to the gap between the inner wall (213) and the outer wall (212) of the housing (210), and can be fitted into the groove (214) between the inner wall (213) and the outer wall (212) of the housing (210) to be tightly coupled.

[0061] In addition, the flange (232) can be joined in a tightly sealed state by being closely attached to the groove (214) of the housing. The inner surface of the flange (232) may have a protrusion (234) formed protrudingly, and the inner surface of the inner wall (213) that contacts the flange (232) at a corresponding position may have a structure in which a recess (235) that engages with the protrusion (234) is formed.

[0062] Accordingly, when the flange (232) is fitted into the groove (214) and joined, the projection (234) engages with the groove (235) and is pressurized and tightly sealed, thereby perfectly sealing the space between the housing (210) and the pumping member (220). Accordingly, it is possible to prevent the contents from leaking out from the joining portion.

[0063] In this way, the pumping member (220) has a simple structure with an open bottom, and the flange (232) can be fitted into the groove (214) of the housing (210) to be combined with the housing (210). The area surrounded by the pumping member (220) and the housing (210) forms the internal space of the pressure portion (231).

[0064] The pumping member (220) is compressed or elastically restored on its own to change the pressure in the internal space, thereby transporting the contents in one direction.

[0065] Compression can mean a decrease in volume due to external force applied to the material from its original state. Expansion can mean an increase in volume from a compressed state and then return to its original state. In this way, the pressure and expansion parts form an elastically deformable form, so that when the external force is removed from a state in which it has been elastically deformed by an external force, it can return to its original state through its own elastic restoring force.

[0066] The pumping member (220) may be made of an elastic material to enable compression and expansion due to elasticity. For example, the pumping member (220) may be formed of a material such as rubber, silicone, or synthetic resin.

[0067] The pressure section (231) varies the pressure of the internal space through compression and expansion by its own elasticity according to the operation of the discharge head (300). The pressure section (231) of the present embodiment is structured to elastically deform and expand in the axial length according to the operation of the discharge head (300).

[0068] As illustrated in Fig. 4, the pressure member (231) of the present embodiment may be formed with a relatively thin thickness so as to be elastically deformable, and may be formed with an incline so that the inner diameter gradually decreases inward along the axial direction. Accordingly, injection molding is easier.

[0069] A flange (232) is integrally formed at the bottom of the pressure section (231).

[0070] The flange (232) is formed to protrude downward along the axial direction from the outer surface of the pressure portion (231). The flange (232) is a part that is combined with the housing (210) and is inserted and installed in the groove (214) of the housing (210).

[0071] As the pumping member (220) is connected to the housing (210) via the flange (232), an internal space of the pressure member (231) is formed by the pressure member (231) and the housing (210), and this space is communicated with the check valve (233) located immediately below. The contents flowing in from the check valve (233) are received in the internal space formed by the pressure member (231).

[0072] The pressure section (231) performs a pumping action by varying the pressure by compressing or expanding the internal space as the inclined portion elastically deforms. The pressure section (231) applies a discharge pressure to the contents when compressed by an external force pressing the discharge head (300), and when the external force is removed, it returns to its original state by its own elastic restoring force, thereby applying a suction pressure to the contents of the container body (100).

[0073] When an external force is applied to the pumping member (220) by the operation of the discharge head (300), the force is transmitted to the pressure portion (231), and the pressure portion (231) is elastically deformed, thereby compressing the internal space. As the pressure portion (231) continues to be compressed, the pressure in the internal space of the pressure portion (231) increases. As the pressure in the internal space becomes relatively greater than that of the container body (100), the check valve (233) is kept in a closed state by being in close contact with the hole (211). The contents under pressure due to the compression of the pressure portion (231) are ultimately discharged to the discharge head (300) through the nozzle member (270).

[0074] When the external force applied to the pumping member (220) is removed, the pressure portion (231) expands due to its own elastic force and returns to its original shape. As the internal space of the pressure portion (231) expands, the internal pressure becomes relatively lower than that of the container body (100). Accordingly, the gap between the check valve (233) and the hole (211) widens and opens, and the contents contained in the container body (100) are re-introduced into the internal space of the pressure portion (231) and filled.

[0075] In addition, the pumping member (220) of the present embodiment may further include a disc portion (236) that protrudes outward from the upper portion of the pressure portion (231) and comes into contact with the outer side of the pressure portion (231) when compressed.

[0076] The disc portion (236) prevents the pressure portion (231) from being pressed suddenly or deformed excessively, thereby allowing the pressure portion (231) to operate smoothly.

[0077] As illustrated in Fig. 4, the disc portion (236) is formed to extend outward along the upper periphery of the pressure portion (231). The disc portion (236) is a circular plate structure extending horizontally and is formed integrally with the pumping member (220). The disc portion (236) is positioned above and spaced apart from the pressure portion (231), and comes into contact with the pressure portion (231) when the elastic member is pressed.

[0078] Accordingly, as the pumping member (220) is compressed, the pressure portion (231) is elastically deformed and pressed, and the disc portion (236) located above the pressure portion (231) is lowered and comes into contact with the pressure portion (231) that is being pressed and deformed.

[0079] As the disc portion (236) comes into contact with the outer side of the pressure portion (231), the pressing of the pressure portion (231) is limited. That is, when the pumping member (220) is pressed downward, a concentrated force is applied to the upper end of the pressure portion (231), so that the pressure portion (231) is gradually pressed and deformed from the upper end. As the pressure portion (231) is pressed and deformed, the pressure portion (231) comes into contact with the pressure portion. When the disc portion (236) comes into contact with the pressure portion (231), the pressing force is distributed to the entire pressure portion (231) through the wide surface of the disc portion (236). Accordingly, the disc portion (236) acts as a stopper that prevents the upper end of the pressure portion (231) from being pressed and deformed downward. Therefore, it is possible to prevent the pressure portion (231) from being pressed and deformed rapidly.

[0080] In addition, if the upper portion of the pressure portion (231) is continuously pressed, the pressure portion (231) may be turned over to the opposite side and deformed beyond the elastic recovery limit position. In this case, the pressure portion (231) may not return to its original state. The disc portion (236) can prevent the upper portion of the pressure portion from being pressed downward any further and deformed beyond the elastic recovery limit position by contacting the pressure portion (231).

[0081] In this way, by providing the disc portion (236), the bouncing motion caused by the sudden pressing of the pressure portion during pumping is prevented, and the pumping member (220) operates more smoothly, thereby improving the user experience of pressing the discharge head (300). In addition, since the pressure portion (231) can smoothly return to its original state after being pressed, it is possible to prevent malfunctions such as the discharge head remaining pressed.

[0082] The check valve (233) is opened and closed by being pressed against or spaced from the hole (211) of the housing (210) by the internal pressure of the pumping member (220). In the present embodiment, the check valve (233) has a structure in which, for example, a valve plate (238) covering the hole (211) is connected by a plurality of ribs (239), and as the ribs (239) are elastically expanded, the valve plate (238) moves to open and close the hole (211).

[0083] The check valve (233) opens and closes according to the change in the internal pressure of the pumping member (220), thereby transferring the contents only from the container body (100) to the pumping member (220). That is, when the internal pressure of the pumping member (220) becomes relatively low, the valve plate (238) of the check valve (233) opens the hole (211). Accordingly, the contents inside the container body (100) flow into the pumping member (220) through the check valve (233) from the hole (211). Conversely, when the internal pressure of the pumping member (220) becomes relatively high, the valve plate (238) is pressed against the hole (211) by the pressure applied to the check valve (233), thereby blocking the hole (211). Accordingly, the contents inside the pumping member (220) cannot move toward the container body (100).

[0084] The insertion part (241) forms the upper part of the pumping part (220) and is fitted and connected to the nozzle part (270). The insertion part (241) can be installed in close contact with the nozzle part (270). The insertion part (241) is selectively connected to the internal conduit (271) of the nozzle part (270).

[0085] The insertion portion (241) is a cylindrical tubular structure that extends along the axial direction to form the upper end of the pumping member (220). The nozzle member (270) is inserted and installed internally through the open upper end of the insertion portion (241). The inner surface of the insertion portion (241) and the outer surface of the nozzle member (27) may each have interlocking protrusions formed thereon. Accordingly, the inner surface of the insertion portion (241) may be pressed against the outer surface of the nozzle member (270) to be tightly coupled thereto.

[0086] The insertion part (241) is coupled to the discharge head (300). A circular bracket (310) having a size corresponding to that of the insertion part may be formed protrudingly at the bottom of the discharge head (300). The insertion part (241) may be fitted into the circular bracket (310) formed at the bottom of the discharge head (300) and may be installed tightly. For example, a protruding portion may be formed between the outer surface of the insertion part (241) and the inner surface of the bracket (310) so that they may be interlocked and fixed to each other.

[0087] A blocking member (243) is formed inside the insertion portion (241).

[0088] A blocking member (243) is formed to extend axially from the center of the insertion portion (241) to form a passage (242) through which contents are transported. The lower end of the blocking member (243) has a free end and is structured to be elastically open outward and expandable in inner diameter. The blocking member (243) is in close contact with the fitting portion (274) of the nozzle member (270) fitted into the passage (242) to selectively block the pressure portion (231) and the inner pipe of the nozzle member (270).

[0089] The blocking member (243) is elastically attached to the fitting part (274) of the nozzle member (270). Thus, the space between the pumping member (220) and the nozzle member (270) can be maintained in a closed state.

[0090] The space between the blocking member (243) and the nozzle member (270) is opened and closed by elastic deformation of the expansion member (244).

[0091] The elastic portion (244) of the present embodiment is integrally formed at the lower portion of the insertion portion (241) and is structured to elastically deform and expand in the axial length according to the operation of the discharge head (300). The elastic portion (244) varies the pressure of the internal space through compression and expansion due to its own elasticity according to the operation of the discharge head (300).

[0092] The elastic portion (244) of the present embodiment may be formed to have a relatively thin thickness so as to be elastically deformable, and may be formed to have an inclined shape so that the inner diameter gradually decreases inward along the axial direction. Accordingly, injection molding is easier.

[0093] The internal space formed by the elastic portion (244) is connected to the passage (242) of the blocking member (243) located at the center, and the passage (242) is connected to the pressure portion (231). The contents of the pressure portion (231) are moved to the internal space formed by the elastic portion (244).

[0094] The elastic member (244) moves the blocking member (243) upwards as the inclined portion elastically deforms, and compresses or expands the internal space to change the pressure, thereby opening and closing the space between the blocking member (243) and the nozzle member (270).

[0095] As the elastic portion (244) is elastically compressed by an external force pressing the discharge head (300), the blocking member (243) moves upward. Accordingly, as the blocking member (243) moves relative to the fitting portion (274) of the nozzle member (270), a gap is created between the additional portion (276) formed on the fitting portion (274) and the blocking member (243). In addition, as the internal pressure increases due to the compression of the elastic portion (244), the outer diameter of the blocking member (243) elastically expands, thereby enlarging the gap, so that the contents can be discharged through the gap to the nozzle member (270).

[0096] When the external force applied to the pumping member (220) is removed, the compressed elastic member (244) returns to its original state by its own elastic restoring force, and the blocking member (243) is lowered to its original position and closely adheres to the additional part (276) formed in the fitting part (274) of the nozzle member (270). Accordingly, the space between the fitting part (274) of the nozzle member (270) and the blocking member (243) is closed, thereby blocking the discharge of the contents.

[0097] After the expansion member (244) returns to its original state, the pressure member (231) is expanded and deformed by the elastic restoring force and returns to its original state. As the pressure member (231) expands and deforms, a negative pressure is formed in the internal space. Since the space between the blocking member (243) and the nozzle member (270) is closed, the contents of the container body (100) are introduced into the internal space of the pressure member (231) through the check valve (233) by the negative pressure of the pressure member (231). In this way, by sequentially driving the pressure member (231) and the expansion member (244), the pumping action of the contents can be smoothly performed.

[0098] The nozzle member (270) may include a nozzle body (272) in which a conduit (271) for transferring contents is formed inside and is fitted into the upper inner side of the insertion part (241) of the pumping member and is closely coupled to communicate with the outlet (320) of the discharge head (300), an insertion part (274) formed at the lower end of the nozzle body (272) and inserted into the blocking part (243) of the insertion part (241), an inlet hole (275) formed on the side of the insertion part (274) and connecting the conduit (271) and the inside of the insertion part (241), and an additional part (276) which protrudes outwardly at the lower end of the insertion part (274) and is in close contact with the inner side of the blocking part (243) to block between the insertion part (241) and the expansion part (244).

[0099] The nozzle member (270) is coupled within the insertion portion (241) at the top of the pumping member (220) and is placed at the bottom of the discharge head (300). The top of the nozzle member (270) is connected to the outlet (320) of the discharge head (300), and the bottom is connected to the pumping member (220). The nozzle member (270) forms a conduit (271) through which contents are moved inside. As the pumping member (220) is compressed according to the operation of the discharge head (300), the internal conduit (271) is selectively connected to the internal space of the pumping member (220).

[0100] The nozzle member (270) is connected to the insertion portion (241) formed on the upper portion of the pumping member (220) to connect the pumping member (220) and the discharge head (300). The nozzle member (270) has a conduit (271) formed therein to form a passage for the contents to move. The conduit (271) is connected to the outlet (320) through the interior of the discharge head (300).

[0101] The nozzle member (270) applies the driving force of the discharge head (300) to the pumping member (220) to compress the pumping member (220) and opens and closes the blocking member (243) of the expansion member (244).

[0102] The nozzle body (272) has a cylindrical shape with a diameter corresponding to the insertion portion (241). The nozzle body (272) can be inserted and installed so that it is forcibly fitted into the insertion portion (241) and does not fall out. For example, the inner surface of the insertion portion (241) and the outer surface of the nozzle body (272) can be formed with protruding portions so that they can be interlocked and fixed to each other.

[0103] As the insertion part (241) of the pumping member (220) is fitted into the lower part of the discharge head (300) and connected, the nozzle body (272) fitted into the insertion part (241) can be installed in close contact with the lower part of the discharge head (300).

[0104] A fitting part (274) that fits into and adheres to the blocking member (243) of the insertion part (241) is integrally formed and extended at the lower center of the nozzle body (272). A conduit (271) is formed inside the fitting part (274).

[0105] An inlet hole (275) may be formed on the side of the fitting part (274). At least one inlet hole (275) may be formed at intervals along the outer surface of the fitting part (274). Accordingly, the contents introduced between the blocking member (243) and the fitting part (274) may be moved to the internal conduit (271) through the inlet hole (275).

[0106] An additional portion (276) is formed to protrude outward on the lower outer surface of the fitting portion (274). The additional portion (276) is a portion whose outer diameter is relatively larger than the outer diameter of the fitting portion (274), and is closely attached to the blocking member (243) to block the gap.

[0107] As mentioned, when the expansion member (244) is elastically deformed into a compressed state by the operation of the discharge head (300), the blocking member (243) moves upward with respect to the additional member (276) whose position is relatively fixed, and a gap is created between the blocking member (243) and the additional member (276). Accordingly, the contents inside the expansion member (241) can be moved to the conduit (271) of the nozzle member through the gap.

[0108] The pumping device (200) of the present embodiment may further include an auxiliary check valve (280) installed inside the nozzle body (272) to selectively block the pipe (271) and discharge the contents in one direction toward the discharge head (300).

[0109] The auxiliary check valve (280) is opened and closed by being pressed against or spaced from the pipe (271) of the nozzle member (270) by the internal pressure of the pumping member (220). The auxiliary check valve (280) of the present embodiment may have the same structure as the check valve (233). For example, the auxiliary check valve (280) may have a structure in which a valve plate covering the pipe (271) is connected by a plurality of ribs, and the valve plate moves as the ribs elastically expand and contract to open and close the pipe.

[0110] The auxiliary check valve (280) opens and closes according to the change in the internal pressure of the pumping member (220), thereby transferring the contents only from the pumping member (220) toward the discharge head (300). That is, when the internal pressure of the pumping member (220) relatively increases, the valve plate of the auxiliary check valve (280) is lifted to open the conduit (271). Accordingly, the contents of the pumping member are discharged through the conduit (271) and the outlet (320) of the discharge head (300). Conversely, when the internal pressure of the pumping member (220) relatively decreases, the valve plate of the auxiliary check valve (280) is pressed against the upper end of the conduit (271), thereby blocking the conduit (271). Accordingly, outside air cannot move from the outlet (320) of the discharge head (300) toward the pumping member (220).

[0111] In this way, by further installing an auxiliary check valve (280) on the pipe (271) of the nozzle member (270), it is possible to block the outflow of contents and more effectively prevent the inflow of external air.

[0112] Meanwhile, FIG. 5 illustrates another embodiment of a pumping member, and FIG. 6 illustrates a cosmetic container in which a pumping member according to the embodiment of FIG. 5 is installed.

[0113] The embodiments illustrated in FIGS. 5 and 6 below are identical to the embodiments described above, except that the pressure portion of the pumping member has a different structure. Accordingly, identical components are denoted by the same reference numerals, and detailed descriptions thereof are omitted.

[0114] As illustrated in FIG. 5, the pumping member (220) according to the present embodiment forms a space inside and includes a pressure part (237) that is compressed and elastically restored by an external force to vary the pressure of the internal space, a flange (232) that extends downward from the lower outer surface of the pressure part (231) and is closely attached to a groove part (214) provided in the housing (210), an insertion part (241) that is formed on the upper side of the pressure part (231) and is combined with the nozzle part (270) and is installed at the lower end of the discharge head (300), a blocking member (243) that is formed on the inner side of the lower end of the insertion part (241) to form a passage (242) through which the contents are discharged and is formed to have an elastically expandable inner diameter and is closely attached to the nozzle part to block the pressure part (231) and the internal conduit (271) of the nozzle part (270), and a blocking member (243) that is formed on the insertion part (241) and elastically expands according to the operation of the discharge head (300). It may include an elastic member (244) that opens and closes between the blocking member (243) and the nozzle member (270).

[0115] The pressure portion (237) may be formed in a thin wrinkle shape so that it can be compressed and deformed when pressed by an external force. The pressure portion (237) of the present embodiment may be formed by continuously bending multiple wrinkles, like a Javara. Accordingly, the pressure portion (237) can be elastically deformed more easily. In addition, since the pressure portion (237) can be elastically deformed more smoothly, noise can be minimized during operation.

[0116] While exemplary embodiments of the present invention have been illustrated and described above, various modifications and alternative embodiments will be apparent to those skilled in the art. All such modifications and alternative embodiments are contemplated and encompassed by the appended claims, and are intended to remain within the true spirit and scope of the present invention.

Claims

1. It includes a container body that holds contents, a pumping device that is connected to the upper opening of the container body and discharges the contents held in the container body through a pumping action due to its own elasticity, and a discharge head that is connected to the pumping device to apply discharge pressure to the pumping device and has an outlet on one side that is connected to the pumping device and through which the contents are discharged. The above pumping device is a cosmetic container comprising a housing that is closely mounted to the opening and has a hole formed in the center thereof that communicates with the inside of the container body, a pumping member that is coupled to the housing and is connected to the hole of the housing and forms a space for receiving contents therein, and is elastically compressed or expanded along the axial direction to transport the contents in one direction along the axial direction, and a nozzle member that is coupled to the pumping member and forms a conduit through which the contents are moved therein to connect between the pumping member and the outlet of the discharge head, and compresses the pumping member and selectively opens and closes the internal conduit and the internal space of the pumping member according to the operation of the discharge head, and a check valve that is installed in the hole of the housing and selectively opens and closes the hole according to the operation of the pumping member to unidirectionally introduce the contents from the container body into the inside of the pumping member.

2. In paragraph 1, A cosmetic container having a structure in which the pumping member forms an internal space between the housing and the pressure member, the pressure member being compressed and elastically restored by an external force to vary the pressure of the internal space, a flange extending downward from the outer circumferential surface of the lower portion of the pressure member and closely fitting into a groove provided in the housing, an insertion member formed on the upper portion of the pressure member and coupled with the nozzle member to be installed at the lower portion of the discharge head, a blocking member formed on the inner portion of the lower portion of the insertion member to form a passage through which contents are discharged, the blocking member being elastically formed to have an inner diameter expandable and tightly fitting into the nozzle member to block the pressure member and the internal conduit of the nozzle member, and an expansion member formed on the insertion member and elastically expanding in accordance with the operation of the discharge head to open and close a gap between the blocking member and the nozzle member, such that an area between the open lower portion of the pressure member and the housing forms an internal space of the pressure member.

3. In paragraph 2, A cosmetic container having a structure in which the housing includes a groove formed by an outer wall protruding upward around the hole and supporting the outer surface of the flange at the bottom of the pumping member, and an inner wall protruding upward and spaced apart from the outer wall and supporting the inner surface of the flange, such that the flange is installed by being closely fitted into the groove.

4. In a pumping device for a cosmetic container, which is installed between the upper opening of the container body that stores the contents of the cosmetic container and the discharge head that discharges the contents, and discharges the contents contained in the container body through the outlet of the discharge head through a pumping action due to its own elasticity, A pumping device for a cosmetic container, comprising: a housing that is closely mounted to the opening and has a hole formed in the center thereof that communicates with the inside of the container body; a pumping member that is coupled to the housing and is connected to the hole of the housing and forms a space for receiving contents therein, and is elastically compressed or expanded along the axial direction to transport the contents in one direction along the axial direction; a nozzle member that is coupled to the pumping member and forms a conduit through which the contents move therein, connects between the pumping member and the outlet of the discharge head, and compresses the pumping member and selectively opens and closes the internal conduit and the internal space of the pumping member according to the operation of the discharge head; and a check valve that is installed in the hole of the housing and selectively opens and closes the hole according to the operation of the pumping member to unidirectionally introduce the contents from the container body into the inside of the pumping member.

5. In paragraph 4, A pumping device for a cosmetic container having a structure in which the pumping member forms an internal space between the housing and the pressure member, the pressure member being compressed and elastically restored by an external force to vary the pressure of the internal space, a flange extending downward from the outer circumferential surface of the lower portion of the pressure member and closely fitting into a groove provided in the housing, an insertion member formed on the upper portion of the pressure member and coupled with the nozzle member to be installed at the lower portion of the discharge head, a blocking member formed on the inner portion of the lower portion of the insertion member to form a passage through which contents are discharged, the blocking member being formed to have an elastically expandable inner diameter and closely fitting into the nozzle member to block the pressure member and the internal conduit of the nozzle member, and an expansion member formed on the insertion member and elastically expanding in accordance with the operation of the discharge head to open and close the gap between the blocking member and the nozzle member, such that an area between the open lower portion of the pressure member and the housing forms an internal space of the pressure member.

6. In paragraph 5, A pumping device for a cosmetic container having a structure in which the housing includes a groove formed by an outer wall protruding upward around the hole and supporting the outer surface of the flange at the bottom of the pumping member, and an inner wall protruding upward and spaced apart from the outer wall and supporting the inner surface of the flange, such that the flange is installed by being closely fitted into the groove.

7. In paragraph 5, A pumping device for a cosmetic container further comprising a circular portion that protrudes outward along the circumference from the upper portion of the pressure portion and comes into contact with the pressure portion when compressed.

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