Dropper capable of discharging residual content by having pipette piston inside pipette

Abstract

According to a first embodiment of the present invention, a dropper is provided. The dropper comprises: a pipette having a hollow cavity formed inside and an opening formed such that contents can be aspirated or discharged; a pipette piston which is inserted into the hollow cavity and forms a pipette movement space up to the opening; and a button which can compress or decompress a compression space that is in communication with the inside of the pipette, wherein the pipette piston is moved toward the opening as the compression space is compressed on the basis of the movement of the button closer to the pipette. According to a second embodiment of the present invention, a dropper is provided. The dropper comprises: a pipette having a hollow cavity formed inside and an opening formed such that contents can be aspirated or discharged; a bulb which is coupled to the pipette so that a compression space that is in communication with the hollow cavity is formed and the compression space can be compressed; and a pipette piston which is inserted into the hollow cavity and is movable in the pipette, wherein the pipette piston is moved in a direction toward the opening or away from the opening in the pipette by as much as a movement distance corresponding to a variation in the volume of the compression space, on the basis of the compression or decompression of the bulb.

Description

A dropper equipped with a pipette piston inside the pipette to enable the discharge of residual contents

[0001] The present invention relates to a dropper having a pipette piston inside the pipette, and more specifically, to a dropper having a pipette piston inside the pipette so that residual contents can be discharged inside the pipette.

[0002] Containers holding liquid contents, such as drugs or cosmetics, require a structure capable of dispensing a precise amount in small increments; however, existing dispensing containers struggle to control the exact amount desired by the user, posing a problem with accurate quantitative dispensing. This not only causes inconvenience but can also lead to product waste.

[0003] To solve these problems, a dropper-type container with a pipette structure was developed. However, with this pipette structure, a large amount of residue remained inside the pipette, frequently resulting in situations where the contents could not be used to the very end.

[0004] The present invention aims to solve the above problem by providing a dropper that can minimize the remaining amount inside the pipette (suction tube) by discharging the remaining contents inside the pipette.

[0005] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below.

[0006] According to an embodiment of the present invention, a dropper is provided. The dropper comprises a pipette having a hollow formed on its inner side and an opening formed to suck or discharge contents, an operating part coupled to the pipette to form a compression space communicating with the hollow, configured to allow the volume of the compression space to be compressed or restored, and a pipette piston inserted into the hollow and movable inside the pipette, wherein the pipette piston is moved in the direction of the opening or the opposite direction by a distance corresponding to the amount of change in the volume of the compression space based on the compression or release of the operating part.

[0007] A dropper is provided according to a first embodiment of the present invention. The operating part of the dropper includes a button capable of compressing or releasing a compression space communicating with the inside of a pipette, and a pipette piston moves toward an opening as the compression space is compressed based on the movement of the button toward the pipette.

[0008] A dropper is provided according to a second embodiment of the present invention. The operating part of the dropper is coupled with a pipette to form a compression space and includes a bulb configured to allow the compression space to be compressed, and the pipette piston is moved toward or away from the opening by a distance corresponding to the volume change of the compression space based on whether the bulb is compressed or decompressed.

[0009] According to the present invention, a pipette piston is provided inside the pipette to maximize the discharge of residual contents, thereby minimizing or eliminating the remaining amount inside the pipette. Accordingly, the efficiency of the product can be increased and waste of the contents can be reduced.

[0010] According to the present invention, the pipette piston is moved by a button, thereby allowing the contents to be discharged efficiently and conveniently.

[0011] A brief description of each drawing is provided to help to better understand the drawings cited in the detailed description of the invention.

[0012] FIG. 1 is an exploded view of a contents container according to a first embodiment of the present invention.

[0013] FIG. 2 is a perspective view of the dropper shown in FIG. 1.

[0014] Figure 3 is an exploded view of the dropper shown in Figure 2.

[0015] Figure 4 is a cross-sectional view of the dropper shown in Figure 2.

[0016] Fig. 5 is a side view of the button shown in Fig. 3.

[0017] FIG. 6 is a cross-sectional view of a dropper according to another embodiment of the first embodiment of the present invention.

[0018] FIG. 7 is a cross-sectional view of a dropper according to another embodiment of the first embodiment of the present invention.

[0019] FIG. 8 is an exploded view of a contents container according to a second embodiment of the present invention.

[0020] FIG. 9 is a perspective view of the dropper shown in FIG. 8.

[0021] Fig. 10 is an exploded view of the dropper shown in Fig. 9.

[0022] Fig. 11 is a cross-sectional view of the dropper shown in Fig. 10.

[0023] FIG. 12 is a cross-sectional view of a dropper according to another embodiment of the second embodiment of the present invention.

[0024] According to an embodiment of the present invention, a dropper is provided. The dropper comprises a pipette having a hollow formed on its inner side and an opening formed to suck or discharge contents, an operating part coupled to the pipette to form a compression space communicating with the hollow, configured to allow the volume of the compression space to be compressed or restored, and a pipette piston inserted into the hollow and movable inside the pipette, wherein the pipette piston is moved in the direction of the opening or the opposite direction by a distance corresponding to the amount of change in the volume of the compression space based on the compression or release of the operating part.

[0025] A dropper is provided according to a first embodiment of the present invention. The operating part of the dropper includes a button capable of compressing or releasing a compression space communicating with the inside of a pipette, and a pipette piston moves toward an opening as the compression space is compressed based on the movement of the button toward the pipette.

[0026] Based on the movement of the button away from the pipette, the pipette piston can move in a direction away from the opening as the compression space expands.

[0027] The apparatus further comprises a cylinder coupled to a pipette and forming a compression space on the inside, and a cylinder piston inserted into the compression space and coupled to a button. When the button is pressed, the cylinder piston moves a first distance toward the pipette to reduce the compression space by a first volume, and the pipette piston can move a second distance away from the cylinder piston based on the movement of the cylinder piston so that the pipette movement space is reduced by a second volume corresponding to the first volume.

[0028] The device further includes an elastic member that is coupled to a pipette and forms a compression space on the inside, and when a button is pressed, the elastic member is compressed by being pressed by the button, thereby reducing the compression space by a first volume, and the pipette piston can be moved away from the elastic member based on the compression of the elastic member so that the pipette movement space is reduced by a second volume corresponding to the first volume.

[0029] The travel distance of the button may differ from the travel distance of the pipette piston.

[0030] The first distance is shorter than the second distance, and the cross-sectional area of ​​the cylinder piston may be larger than the cross-sectional area of ​​the pipette piston.

[0031] The pipette piston may include a lower portion having a shape corresponding to the part forming the opening of the pipette on the side facing the opening.

[0032] The pipette piston may include an incision formed to allow air to pass through.

[0033] When the pressure of the button is released, the cylinder piston is moved away from the pipette by a first distance, and the pipette piston can be moved toward the cylinder piston by a second distance based on the movement of the cylinder piston.

[0034] The button can be configured to move by a first distance.

[0035] The button may further include an elastic member configured to move together with a cylinder piston and to apply an elastic force to the button in a direction opposite to the direction toward the pipette.

[0036] A dropper is provided according to a second embodiment of the present invention. The operating part of the dropper is coupled with a pipette to form a compression space and includes a bulb configured to allow the compression space to be compressed, and the pipette piston is moved toward or away from the opening by a distance corresponding to the volume change of the compression space based on whether the bulb is compressed or decompressed.

[0037] The cross-sectional area of ​​the compression space can be larger than the cross-sectional area of ​​the hollow of the pipette.

[0038] The lower part of the pipette piston may have a shape corresponding to the part forming the opening of the pipette.

[0039] The pipette piston includes a pair of contact portions that are in contact with the inner surface of the pipette and are respectively located on the upper and lower sides, and the pipette piston further includes a pipette piston body located between the pair of contact portions, and the pipette piston body may be spaced apart from the inner surface of the pipette.

[0040] The pipette piston body may have a deformation space formed on the inside with an opening to allow for deformation.

[0041] The pipette piston may include an incision formed to allow air to pass through.

[0042] The bulb includes a bulb body and a coupling portion that is coupled to a pipette on the inner side of the bulb body, and further includes a cap that is coupled to the bulb and has a through hole formed to allow the bulb body to pass through, and the coupling portion may be positioned at a height corresponding to the through hole.

[0043] Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the contents described in the attached drawings. In addition, a method of configuring and using an apparatus according to an embodiment of the present invention will be described in detail with reference to the contents described in the attached drawings. Identical reference numbers or symbols presented in each drawing indicate parts or components that perform substantially the same function. For convenience of reference, the directions of up, down, left, and right described below are based on the drawings, and the scope of the present invention is not necessarily limited to these directions.

[0044] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of multiple related items or any one of the multiple related items.

[0045] The terms used herein are for describing embodiments and are not intended to limit or / or restrict the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described herein, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0046] Throughout the specification, when it is stated that one part is connected to another part, this includes not only cases where they are directly connected, but also cases where they are indirectly connected with other components in between. Furthermore, when it is stated that a part includes a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0047]

[0048] According to an embodiment of the present invention, a dropper is provided comprising: a pipette having a hollow formed on the inside and an opening formed to suck or discharge contents; an operating part coupled to the pipette to form a compression space communicating with the hollow, configured to allow the volume of the compression space to be compressed or restored; and a pipette piston inserted into the hollow and movable inside the pipette, wherein the pipette piston moves in the direction of the opening or the opposite direction by a distance corresponding to the amount of change in the volume of the compression space based on the compression or release of the operating part.

[0049] Embodiments of the present invention may be implemented in various ways depending on the specific form of the operating part, and specifically, the operating part may be in the form of a button or a bulb.

[0050]

[0051] According to a first embodiment of the present invention, the operating part is provided with a dropper including a button.

[0052] FIG. 1 is an exploded view of a contents container (1) according to a first embodiment of the present invention.

[0053] Referring to FIG. 1, a contents container (1) according to a first embodiment of the present invention will be described.

[0054] A container for the contents (1) may be provided to receive the contents and to use the received contents. The contents may be, for example, a cosmetic in a liquid state that is preferably used in small amounts at a time, but in an accurate amount. More specifically, the contents may be a lotion, skin toner, ampoule, eye cream, etc.

[0055] As illustrated in FIG. 1, the contents container (1) may include a container (C) configured to receive contents and a dropper (D) configured to dispense contents. As illustrated in FIG. 1, the dropper (D) may be configured to suck up a portion of the contents received in the container (C) and to dispense the contents to a place where the contents are to be applied.

[0056] One side of the container (C) has an opening formed therein so that when contents are received in the container (C), they can be moved into the container (C) through the opening. To prevent the contents from flowing out through the opening formed in the container (C) when carrying the contents container (1), a dropper (D) can cover the opening formed in the container (C). More specifically, the dropper (D) can be configured to be screw-coupled to a thread formed on the opening side of the container (C). That is, the dropper (D) can be configured to cover one side of the container (C) while simultaneously discharging the contents.

[0057] Hereinafter, the dropper (D) will be described in more detail. For reference, the dropper (D, D-1) according to the first embodiment of the present invention or another embodiment of the first embodiment with reference to FIGS. 1 to 6 is described as a button-type dropper (D, D-1) that includes an automatic filling structure. Furthermore, the dropper (D-2) according to another embodiment of the first embodiment of the present invention with reference to FIG. 7 is described as a button-type dropper (D-2) that has an elastic part (900-2). The automatic filling structure may mean having a separate structure in which contents are automatically filled into a pipette (700) when the button (100) is pressed and then released. As long as the droppers of each type (D, D-1, D-2) are not arranged with each other, some features of each embodiment may be added to or substituted for other features.

[0058] FIG. 2 is a perspective view of the dropper (D) shown in FIG. 1. FIG. 3 is an exploded view of the dropper (D) shown in FIG. 2. FIG. 4 is a cross-sectional view of the dropper (D) shown in FIG. 2. More specifically, FIG. 3 includes an enlarged view centered on the pipette piston (800). FIG. 4(a) shows the case where the pipette piston (800) is in the suction position, and FIG. 4(b) shows the case where the pipette piston (800) is in the discharge position.

[0059] Referring to FIGS. 2 to 4, a dropper (D) according to a first embodiment of the present invention will be described.

[0060] As shown in FIG. 2, a dropper (D) for dispensing contents may be provided.

[0061] As illustrated in FIG. 3, the dropper (D) may include a button (100), an outer housing (300), an elastic member (200), an inner housing (400) including a cylinder (410), a cylinder piston (500), a holder (600), a pipette (700), and / or a pipette piston (800). In this case, other parts of the inner housing (400) formed separately from the outer housing (300) and the cylinder (410), and the holder (600) may be omitted as needed. Furthermore, the dropper (D) may further include a cylinder sealing member (410x), a cap housing sealing member (430x), and / or a pipette sealing member (700x).

[0062] With reference to FIGS. 3 and 4, the configuration included in the dropper (D) will be described in detail.

[0063] The button (100) may be configured so that a portion of it is inserted into the outer housing (300). The button (100) may be coupled to the outer housing (300) so as to move relative to the outer housing (300). The upper portion of the button (100) may be configured to be exposed to the outside of the outer housing (300) and pressurizable. The upper portion of the button (100) may be configured to cover the top of the outer housing (300) to prevent the button (100) from being fully received by the outer housing (300). By being pressurized, the button (100) can pressurize the cylinder piston (500) described below, thereby reducing the volume of the cylinder (410). For reference, the button (100) may have a plastic material.

[0064] The outer housing (300) may have a roughly cylindrical shape with a space formed on the inside. The outer housing (300) may accommodate an inner housing (400) including a part of the button (100) and a cylinder (410) described below, a cylinder piston (500), a cylinder sealing member (410x), a cap housing sealing member (430x), and / or the end of a pipette (700). For reference, the outer housing (300) may be made of plastic material.

[0065] The elastic member (200) can apply an elastic force to the button (100) in a direction of return when the button (100) is pressed. The elastic member (200) may be a spring, as shown in FIG. 3. Thus, by compressing the elastic member (200), an elastic force can be applied to the button (100) in a direction of extension. If necessary, the elastic member (200) may be a plate spring or the like that applies an elastic force. For reference, the elastic member (200) may have a metal material.

[0066] The inner housing (400) may be accommodated inside the outer housing (300). The inner housing (400) may be coupled to the outer housing (300) to prevent separation from the outer housing (300). The inner housing (400) may include a cylinder (410). As shown in FIG. 4, the inner housing (400) may have a thread formed so as to extend downward and be configured to be screw-coupled with a container (C) (see FIG. 1). The inner housing (400) may include a cylinder (410). A compression space (410S) may be formed inside the cylinder (410). The compression space (410S) may have a roughly cylindrical shape. For reference, the inner housing (400) may be made of plastic material. Additionally, the cylinder (410) may be coupled to a pipette (700) described later and a compression space (410S) may be formed inside. More specifically, the compression space (410S) and the hollow of the pipette (700) can be connected.

[0067] The cylinder piston (500) can be inserted into the compression space (410S). The cylinder piston (500) may have a shape corresponding to the compression space (410S). Accordingly, as the cylinder piston (500) descends, the volume of the compression space (410S) is reduced, thereby increasing the pressure of the air located in the compression space (410S). The side of the cylinder piston (500) is in contact with the cylinder (410), thereby preventing air from escaping between the cylinder (410) and the cylinder piston (500). Furthermore, the cylinder piston (500) may be coupled with a button (100) so that the cylinder piston (500) moves together with the button (100) as the button is pressed. For reference, the cylinder piston (500) may have a rubber material. Accordingly, the cylinder piston (500) is inserted into the cylinder (410) by being deformed by pressure, thereby sealing the space between the cylinder (410) and the cylinder piston (500).

[0068] The holder (600) can cover the bottom of the outer housing (300). The top of the outer housing (300) is covered by the button (100), and the bottom can be covered by the holder (600). The holder (600) can secure the outer housing (300) and the inner housing (400). The holder (600) may have an annular shape. For reference, the holder (600) may have a plastic material.

[0069] A pipette (700) may have a hollow formed on the inner side of the lower side of the compression space (410S) and an opening formed to allow the contents to be sucked in or discharged. The pipette (700) extends downward, and the hollow formed in the pipette (700) may extend downward along the direction of extension of the pipette (700). In other words, the pipette (700) may be a type of pipe. An opening is formed on the lower side of the pipette (700) so that contents may flow into or out of the hollow of the pipette (700) through the opening. The lower end of the pipette (700) may be formed with a narrower cross-sectional area compared to the upper end of the pipette (700). Accordingly, when the contents are discharged or sucked in, the contents can be accurately discharged in a narrow area or finely adjusted to suck in the contents in a desired area. Additionally, the pipette (700) may have a flange formed on the top so that it can be mounted in the inner housing (400). More specifically, a hole is formed in the inner housing (400) through which a pipette (700) can pass, and the pipette (700) is inserted into the hole, and the flange formed on the pipette (700) is supported by the inner housing (400) adjacent to the hole, thereby preventing the pipette (700) from moving downward. The pipette (700) may be formed of glass material, but is not limited thereto.

[0070] A pipette piston (800) can be inserted into the hollow of a pipette (700). The pipette piston (800) can form a pipette movement space (700S) up to the opening. More specifically, with reference to FIG. 4(a), the space provided from the lower side of the pipette piston (800) to the opening of the pipette (700) can be defined as the pipette movement space (700S). The pipette piston (800) can rise while the contents are moved into the hollow of the pipette (700) and descend while the contents are discharged through the opening of the pipette (700) to assist in the discharge of the contents. For reference, the pipette piston (800) may have a rubber material.

[0071] The cylinder sealing member (410x) is positioned between the compression space (410S) and the pipette (700) to seal the gap between the compression space (410S) and the pipette (700). The cylinder sealing member (410x) may have an annular shape. For reference, the cylinder sealing member (410x) may be made of rubber.

[0072] The cap housing sealing member (430x) is positioned on the inner side facing the container (C) of the inner housing (400) so as to seal the gap between the container (C) and the inner housing (400) when the dropper (D) is coupled to the container (C). The cap housing sealing member (430x) may have an annular shape. For reference, the cap housing sealing member (430x) may be made of rubber.

[0073] A pipette sealing member (700x) is positioned at the bottom of the pipette (700) to seal the space between the pipette (700) and the inner housing (400). More specifically, the pipette sealing member (700x) can seal the space between the flange formed on the pipette (700) and the inner housing (400). A cylinder sealing member (410x) may be positioned above the flange of the pipette (700), and a pipette sealing member (700x) may be positioned below it. The pipette sealing member (700x) may have an annular shape. For reference, the pipette sealing member (700x) may be made of rubber.

[0074] Below, with reference to FIG. 4, the configuration described above will be explained in more detail.

[0075] The button (100) may include an exposed portion (110) located on the outside of the outer housing (300) and covering the outer housing (300). The exposed portion (110) may have a roughly circular plate shape.

[0076] The button (100) is housed in an outer housing (300) and may include an outer side portion (120) of the button that has an outer diameter smaller than that of the exposed portion (110). An extension hole (121 H) extending in the circumferential direction may be formed in the outer side portion (120) of the button.

[0077] The button (100) may include an inner side portion (130) of the button (100) located radially inward from the outer side portion (120) of the button and having an outer diameter smaller than that of the outer side portion (120) of the button. The inner side portion (130) of the button is inserted into an inner housing (400), so that rotational movement and movement in the up-and-down direction are free, but movement in the forward, backward, left-and-right directions may be restricted.

[0078] The button (100) may have a piston insertion projection (140) extending downward from the exposed portion (110) to be coupled with the cylinder piston (500).

[0079] The outer housing (300) may include a guide projection (310) that protrudes inward from the inner surface. The guide projection (310) is received in an extension hole (121 H) to create interaction between the outer housing (300) and the button (100). This will be explained in more detail with reference to FIG. 5.

[0080] The outer housing (300) may include an inner housing support (320) that protrudes toward the inner housing (400). The inner housing support (320) may come into contact with the inner housing (400). Accordingly, the inner housing (400) may be prevented from moving radially relative to the outer housing (300). The inner housing support (320) includes a free end so that even if the inner housing (400) is impacted and moves toward one side of the outer housing (300), the inner housing support (320) can absorb the impact.

[0081] The inner housing (400) may include a cylinder (410) extending upward. The cylinder (410) may have a hollow cylindrical shape.

[0082] The inner housing (400) may include a button movement guide (420) that extends upward parallel to the cylinder (410) on the outside of the cylinder (410). A gap may be formed between the button movement guide (420) and the cylinder (410). A part of the button (100) is received in the gap formed between the button movement guide (420) and the cylinder (410), thereby guiding the rotational movement and vertical movement of the button (100).

[0083] The inner housing (400) may include a cap housing (430) formed to be screw-coupled with the container (C). The cap housing (430) may include a pipette insertion part (431) extending downward to form a hole into which a pipette (700) is inserted. The pipette insertion part (431) can prevent the pipette (700) from shaking in the left and right directions by surrounding the pipette (700).

[0084] The pipette piston (800) may include a lower portion (810) having a shape corresponding to the portion forming the opening of the pipette (700) on the side facing the opening. Accordingly, when the pipette piston (800) is moved downward to the maximum extent and is in the discharge position, the remaining contents inside the pipette (700) can be minimized.

[0085] The pipette piston (800) may include a contact portion (820) that contacts the inner surface of the pipette (700). The contact portion (820) may protrude toward the inner surface of the pipette (700). As the pipette piston (800) moves, the discharge of residual contents located inside the pipette (700) is induced, and at the same time, by the contact portion (820) scraping the inner surface of the pipette (700), the residual contents attached to the inner surface of the pipette (700) may be moved together toward the opening formed in the pipette (700). If the contents are highly viscous, or if the adhesion between the contents and the inner surface of the pipette (700) is strong, the residual contents inside the pipette (700) can be effectively removed by the contact portion (820). The contact portion (820) may be provided as a pair, each located on the upper and lower sides.

[0086] The pipette piston (800) may include a cylindrical pipette piston body (801). The pipette piston body (801) may be positioned between a pair of contact portions (820). The pipette piston body (801) may be spaced apart from the inner surface of the pipette (700). Accordingly, contact between the pipette (700) and other parts of the pipette piston (800) other than the contact portions (820) is minimized, thereby minimizing the frictional force generated between the pipette piston (800) and the pipette (700) while the pipette piston (800) is moving.

[0087] The pipette piston (800) may further include a wing portion (840) that extends from the pipette piston body (801) toward the inner surface of the pipette (700) as it moves away from the opening of the pipette (700). A contact portion (820) may protrude from the wing portion (840). The wing portion (840) may have a free end. Thus, the wing portion (840) may be free to move. The contact portion (820) extending from the wing portion (840) may also be free to move. Accordingly, while the pipette piston (800) is inserted into a suitable position, the contact portion (820) may be free to move radially inward. At this time, the wing portion (840) may become thinner toward the end. The change in thickness of the wing portion (840) may be optimized to produce the above effect. Furthermore, since the wing portion (840) is inclined outward in the radial direction as its extension direction extends upward, it can be elastically biased toward the radial outer direction. Accordingly, when the pipette piston (800) is inserted in the appropriate position, the contact portion can be in closer contact with the pipette (700) due to the elastic bias of the wing portion (840).

[0088] The pipette piston (800) may include an incision (830) formed to allow air to pass through. The incision (830) may be a sheath or a hole. Since air must be moved to a compression space (410S) located above the pipette piston (800) as the pipette piston (800) moves as described below, the pipette piston (800) may require an incision (830) through which air can pass. At this time, the incision (830) may be configured to prevent the passage of liquid contents. This is because the liquid is located on the pipette movement space (700S) and needs to be discharged to the outside as the pipette piston (800) moves.

[0089] A deformation space (800S) extending from the top toward the bottom of the pipette piston (800) may be formed. An opening may be formed at the upper side of the space. Accordingly, the pipette piston (800) is easily compressed, so that when the pipette piston (800) is inserted into the pipette (700), it can be easily inserted. In other words, the pipette piston body (801) may have a deformation space (800S) having an opening on the inside so that it can be deformed.

[0090] Below, with reference to FIG. 4, the movement of the cylinder piston (500) and the movement of the pipette piston (800) according to the movement of the button (100) will be explained.

[0091] As shown in FIGS. 4(a) and 4(b), when the button (100) is pressed and moved downward, the pipette piston (800) coupled with the button (100) can compress the compression space (410S). The pressure in the compression space (410S) can be increased. Air located in the compression space (410S) can escape through the opening of the pipette (700) through the hollow of the pipette (700) which is in communication with the compression space (410S). At this time, when the button (100) is returned to the upper side, if the opening of the pipette (700) comes into contact with the contents, the pipette (700) cylinder (410) moves upward in accordance with the upward movement of the button (100), and accordingly, the compression space (410S) can be expanded. As the compression space (410S) expands, the pressure in the hollow of the pipette (700) communicating with the compression space (410S) decreases, and the contents in contact with the opening of the pipette (700) can be moved to the inside of the pipette (700). At this time, if the button (100) is pressed again and moved downward, the contents can be discharged through the opening of the pipette (700) according to the action described above.

[0092] However, as needed, the compression space (410S) may be compressed according to the movement of the button (100), and the pipette piston (800) within the pipette (700) may be omitted or replaced with another configuration while maintaining the movement of the pipette piston (800). Regarding this, refer to the description of another embodiment of the first embodiment with reference to FIG. 7.

[0093] More specifically, when the button (100) is pressed, the cylinder piston (500) can be moved a first distance (L1) toward the pipette (700) to reduce the compression space (410S) by a first volume. Then, based on the movement of the cylinder piston (500), the pipette piston (800) can be moved a second distance (L2) away from the cylinder piston (500) so that the pipette movement space (700S) is reduced by a second volume corresponding to the first volume. More contents can be ejected depending on the movement of the pipette piston (800). In the absence of the pipette piston (800), contents are ejected only by the pressure caused by the compression of the compression space (410S), whereas in the presence of the pipette piston (800), more contents can be ejected because the contents are pushed out by the pressure of the pipette piston (800). The user intends to use a measured amount of contents indicated on the pipette (700), and in order for the contents to be dispensed from the pipette (700) according to the user's purpose, it may be desirable for all the contents contained inside the pipette (700) to be dispensed from the pipette (700). A pipette piston (800) can help achieve this purpose. In particular, the pipette piston (800) may include a lower portion (810) to maximize the reduction in volume of the pipette movement space (700S). Furthermore, the pipette piston (800) may include a contact portion (820) to move the contents that may remain inside the pipette (700) together. The cut portion (830) of the pipette piston (800) allows the air required for the compression space (410S) to pass through but does not allow the liquid contents to pass through, so all the liquid contents can be pushed out.

[0094] At this time, regarding the rotation of the button (100) shown in FIG. 4(a), since it is explained in detail in the description with reference to FIG. 5, we will skip over this part for now. The first volume and the second volume may be the same. However, depending on the case, if the air sealing is not perfect, there may be a slight difference between the first volume and the second volume.

[0095] When the pressure of the button (100) is released, the cylinder piston (500) can be moved away from the pipette (700) by a first distance (L1). Then, the pipette piston (800) can be moved toward the cylinder piston (500) by a second distance (L2) based on the movement of the cylinder piston (500). At this time, the elastic member (200) can help the button (100) return to its original position when the pressure is released by applying an elastic force to the button (100) in the opposite direction toward the pipette (700).

[0096] The first distance (L1) may differ from the second distance (L2). More specifically, the first distance (L1) may be shorter than the second distance (L2). In this case, the cross-sectional area of ​​the cylinder piston (500) may be larger than the cross-sectional area of ​​the pipette piston (800). In other words, the first distance (L1), which is the travel distance of the cylinder piston (500), may be the travel distance of the button (100) because the cylinder piston (500) and the button (100) are combined and move together. That is, the button (100) may be configured to be able to move by the first distance (L1) by pressurization. However, the travel distance of the button (100) is configured to be shorter than the travel distance of the pipette piston (800), but the travel distance of the cylinder piston (500) may be longer than the travel distance of the pipette piston (800). In this embodiment, the travel distance of the button (100) is shorter than the travel distance of the pipette piston (800), which can increase user convenience. Since the travel distance of the cylinder piston (500) being shorter than the travel distance of the pipette piston (800) does not have a direct effect on user convenience, the travel distance of the cylinder piston (500) may vary as needed. Furthermore, as needed, the travel distance of the button (100) may be different from the travel distance of the pipette piston (800). Therefore, by applying the principle described above, there may be an embodiment in which the travel distance of the button (100) is longer than the travel distance of the pipette piston (800).

[0097] As previously mentioned, the first distance (L1), which is the travel distance of the cylinder piston (500), may be equal to the travel distance of the button (100). Since the button (100) is the part that the user pushes, the first distance (L1), which is the travel distance of the button (100), may be short for the user's convenience. The second distance (L2), which is the travel distance of the pipette piston (800), may require a specific distance or more to accommodate a desired amount of contents inside the pipette (700), taking into account the cross-sectional area of ​​the pipette (700). At this time, since the cross-sectional area of ​​the compression space (410S) is larger than the cross-sectional area of ​​the hollow of the pipette (700), the first distance (L1) may be formed to be shorter than the second distance (L2), so the user can move the button (100) by the short first distance (L1) while moving the pipette piston (800) by the required second distance (L2).

[0098] The rotation of the previously mentioned button (100) is described below.

[0099] FIG. 5 is a side view of the button (100) illustrated in FIG. 3. More specifically, FIG. 5(a) is a drawing of the button (100) in an allowed state. FIG. 5(b) is a drawing of the button (100) in a restricted state.

[0100] Referring to FIG. 5, the operation of the button (100) is explained.

[0101] The button (100) can be changed to an allowed state where it can move toward the pipette (700) and a restricted state where it can be changed through rotation in the allowed state, and where it can be changed to a restricted state where it is restricted from moving toward the pipette (700).

[0102] More specifically, the button (100) is an extension hole (121 H) that extends in the circumferential direction, and the extension hole (121 H) may be formed having an inclined surface (121A) that is inclined with respect to the circumferential direction. The inclined surface (121A) may be formed to be inclined downward with respect to the left direction, as shown in FIG. 5. It can be seen that the button (100) rotates from FIG. 5(a) to FIG. 5(b). At this time, the guide projection (310) received in the extension hole (121 H) may move to the left. Since the button (100) receives an upward elastic force from the elastic member (200), the guide projection (310) is pressed relatively toward the inclined surface (121A) and may come into contact with the inclined surface (121A). In the illustration moving from FIG. 5(a) to FIG. 5(b), it appears as though the guide projection (310) is moved to the left and the guide projection (310) is moved downward, but since it is actually the button (100) that is moved, it can be understood that the button (100) is moved to the right and the button (100) is moved upward. That is, while the button (100) is rotated from a restricted state to an allowed state, the inclined surface (121A) can come into contact with the guide projection (310) and move away from the pipette (700).

[0103] The extension hole (121 H) may form a space in which the guide projection (310) can move so that the button (100) can move toward the pipette (700) when the button (100) is in an allowed state. That is, a space may be formed on the upper side of the guide projection (310) in FIG. 5(b). Accordingly, when the button (100) is pressed in the state of FIG. 5(b), there is room in the space located on the upper side of the guide projection (310), so it can be moved downward. On the other hand, since there is no room in the space located on the upper side of the guide projection (310) in FIG. 5(a), it may be difficult for the button (100) to be moved downward. According to this operation, the button (100) can be pressed when it is in an allowed state according to rotation, and can be prevented from being pressed when it is in a restricted state. If the button (100) is pressed or released at a moment when the user does not want it, the contents may be moved or discharged inside the pipette (700), thereby causing unwanted movement of the contents. The state change resulting from the movement of the button (100) can prevent this.

[0104] Other embodiments in addition to the above examples are described below. Content common to the above examples will be omitted as much as possible, and the other embodiments will be described focusing on the differences. In other words, it is evident that if content not explained in other embodiments is necessary, it can be supplemented through the content of the above examples.

[0105] FIG. 6 is a cross-sectional view of a dropper (D) according to another embodiment of the first embodiment of the present invention.

[0106] Referring to FIG. 6, a dropper (D) according to another embodiment of the first embodiment of the present invention will be described.

[0107] Another embodiment differs from the first embodiment with reference to FIGS. 1 to 5 in that the shape of the pipette piston (800-1) is different from the above embodiment.

[0108] The lower end of the pipette piston (800-1) may not correspond to the shape of the opening side of the pipette (700). A concave space downwardly may be formed in the upper center of the pipette piston (800-1). A space corresponding to the space formed on the upper side may be formed on the lower side of the pipette piston (800-1).

[0109] A contact portion (820) may be formed to surround the space formed on the upper and lower sides, respectively, of the pipette piston (800) from the side.

[0110] In this embodiment, compared to the above, the space-forming structure of the pipette piston (800-1) is different, so compression in a different direction can be easily achieved.

[0111] FIG. 7 is a cross-sectional view of a dropper (D-2) according to another embodiment of the first embodiment of the present invention.

[0112] Referring to FIG. 7, a dropper (D-2) according to another embodiment of the first embodiment of the present invention will be described.

[0113] Another embodiment of the first embodiment differs from the embodiment with reference to FIGS. 1 to 5 in that the compression space (910S-2) is formed by the elastic part (900-2), and the button (100-2) compresses the compression space (910S-2) by pressing the elastic part (900-2).

[0114] The dropper (D-2) may include a pipette (700), a pipette piston (800) located inside the pipette (700), an elastic part (900-2) coupled to one side of the pipette (700), an outer housing (300-2) configured to cover at least a portion of the pipette (700) and the elastic part (900-2), and an inner housing (400-2) that secures the pipette (700) and / or the elastic part (900-2) inside the outer housing (300-2). In this case, the outer housing (300-2) and the inner housing (400-2) may be omitted as needed.

[0115] The elastic part (900-2) is combined with the pipette (700) and can form a compression space (910S-2) inside. The elastic part (900-2) can be composed of a material capable of elastic deformation, such as rubber. Accordingly, the elastic part (900-2) can be configured so that the compression space (910S-2) is compressed based on pressure and the compression space (910S-2) is expanded and restored based on release of pressure.

[0116] The button (100-2) can come into contact with the elastic part (900-2). When the button (100-2) is pressed, it can press in a direction that compresses the elastic part (900-2) to compress the compression space (910S-2). For example, as shown in FIG. 7, the button (100-2) can be positioned above the elastic part (900-2) to press the elastic part (900-2) downward. When the button (100-2) is released, it can release the compression of the elastic part (900-2) to expand the compression space (910S-2). For example, as shown in FIG. 7, the button (100-2) can be moved upward so that it returns to its original position according to the elastic force of the elastic part (900-2). However, as needed, the button (100-2) and the elastic part (900-2) may not always be in contact, and the button (100-2) may be spaced apart from the elastic part (900-2), then moved a predetermined distance to compress the elastic part (900-2), and then come into contact with the elastic part (900-2) to press the elastic part (900-2).

[0117] When the button (100-2) is pressed, the elastic part (900-2) is compressed by being pressed by the button (100-2), thereby reducing the compression space (910S-2) by a first volume, and the pipette piston (800) can be moved away from the elastic part (900-2) based on the compression of the elastic part (900-2) so that the pipette movement space (700S) is reduced by a second volume corresponding to the first volume. Specifically, the movement of the pipette piston (800) within the pipette (700) according to the compression of the compression space (910S-2) and the resulting effect correspond to the description of the embodiment with reference to FIGS. 1 to 5, so it is omitted here.

[0118] Additionally, according to another embodiment of the first embodiment, the inner housing (400-2) may include a coupling flange (440-2) that protrudes inward at a position corresponding to the elastic part (900-2).

[0119] The elastic part (900-2) may include an elastic part body (910-2) configured to form a compression space (910S-2) on the upper side of the pipette (700). The elastic part (900-2) may have a flange insertion groove (931H-2) into which a coupling flange (440-2) is inserted. The flange insertion groove (931H-2) may be located below the elastic part body (910-2). More specifically, the elastic part (900-2) may include a first flange support (920-2) protruding radially outwardly above the flange insertion groove (931H-2). The first flange support (920-2) is supported from below by the coupling flange (440-2) to prevent the elastic part (900-2) from being separated to the lower side of the inner housing (400-2). The elastic member (900-2) may include a second flange support member (940-2) that protrudes radially outward from the lower side of the flange insertion groove (931H-2). The second flange support member (940-2) is supported from the upper side by a connecting flange (440-2), thereby preventing the elastic member (900-2) from being separated from the upper side of the inner housing (400-2). The elastic member (900-2) may include a groove forming member (930-2) that connects the first flange support member (920-2) and the second flange support member (940-2) and is radially concave than the first flange support member (920-2) and the second flange support member (940-2). The groove forming portion (930-2) may have a flange insertion groove (931H-2) formed on the outer side, and a pipette insertion groove (932H-2) formed to secure the pipette (700) by inserting the end of the pipette (700). The elastic portion (900-2) may include a pipette support portion (950-2) that extends along the lower side from the flange second support portion (940-2) and supports the pipette (700) with an inner wall.

[0120] The concept of the present invention is not limited to the embodiments described above. The concept of the present invention may include a dropper comprising a button capable of compressing or releasing a compression space communicating with the inside of a pipette, such that the pipette piston moves toward the opening as the compression space is compressed based on the movement of the button moving toward the pipette. Furthermore, the concept of the present invention may also include a feature in which the pipette piston moves away from the opening as the compression space expands based on the movement of the button moving away from the pipette.

[0121]

[0122] According to a second embodiment of the present invention, the operating part is provided with a dropper including a bulb.

[0123] FIG. 8 is an exploded view of a contents container (1') according to a second embodiment of the present invention.

[0124] Referring to FIG. 8, a contents container (1') according to a second embodiment of the present invention will be described.

[0125] A container for the contents (1') may be provided to receive the contents and to use the received contents. The contents may be, for example, a cosmetic in a liquid state that is preferably used in small amounts at once, but in an accurate amount. More specifically, the contents may be a lotion, skin toner, ampoule, eye cream, etc.

[0126] As illustrated in FIG. 8, the contents container (1') may include a container (C') configured to receive contents and a dropper (D') configured to dispense contents. As illustrated in FIG. 8, the dropper (D') may be configured to suck up a portion of the contents received in the container (C') and dispense the contents to a place to apply the contents.

[0127] One side of the container (C') has an opening formed therein so that when contents are received in the container (C'), they can be moved into the container (C') through the opening. To prevent the contents from flowing out through the opening formed in the container (C') when carrying the contents container (1'), a dropper (D') can cover the opening formed in the container (C'). More specifically, the dropper (D') can be configured to be screw-coupled to a thread formed on the opening side of the container (C'). That is, the dropper (D') can be configured to cover one side of the container (C') while simultaneously discharging the contents.

[0128] FIG. 9 is a perspective view of the dropper (D') shown in FIG. 8. FIG. 10 is an exploded view of the dropper (D') shown in FIG. 9. FIG. 11 is a cross-sectional view of the dropper (D) shown in FIG. 9. More specifically, FIG. 11(a) shows the state of the bulb (100') before compression. FIG. 11(b) shows the state of the bulb (100') after compression.

[0129] Referring to FIGS. 9 to 11, a dropper (D') according to a second embodiment of the present invention will be described.

[0130] As shown in FIG. 9, a dropper (D') for dispensing contents may be provided.

[0131] As illustrated in FIG. 10, the dropper (D') may include a bulb (100'), a cap (300'), a pipette (700'), and / or a pipette piston (800'). In this case, the cap (300') may be omitted as needed. Furthermore, the dropper (D') may further include a cap sealing member (300x).

[0132] With reference to FIGS. 10 and 11, the configuration included in the dropper (D') will be described in detail.

[0133] The bulb (100') may be configured so that a portion of it is inserted into the cap (300'). The upper portion of the bulb (100') may be configured to be exposed to the outside of the cap (300') and pressurized. A compression space (100S) is formed inside the bulb (100'), so that when the bulb (100') is pressurized, the compression space (100S) can be reduced. When the compression space (100S) is reduced, the volume inside the compression space (100S) decreases, and the pressure inside the compression space (100S) can increase. The compression space (100S) may be formed such that the upper portion is round and the lower portion has a cylindrical shape. A groove is formed in the bulb (100') into which a portion of the cap (300') can be inserted, thereby preventing separation between the bulb (100') and the cap (300'). For reference, the bulb (100') may have a rubber material. Accordingly, the bulb (100') may be easily deformed. More specifically, the bulb (100') is easily compressed and can be restored to its original shape when the force applied to the bulb (100') is removed.

[0134] As shown in FIG. 11, the cap (300') may be formed with threads that extend downward and are configured to be screw-coupled with the container (C') (see FIG. 8). The cap (300') can cover the bottom of the bulb (100') to prevent damage to the bottom of the bulb (100'). Furthermore, the cap (300') can cover the top of the pipette (700') described below to prevent damage to the top of the pipette (700'). For reference, the cap (300') may be made of plastic.

[0135] A hollow can be formed in the pipette (700') that communicates with the compression space (100S). Furthermore, the pipette (700') can be fitted together with the bulb (100'). In other words, the pipette (700') may have a hollow formed on the inner side of the lower side of the compression space (100S) and an opening formed to allow the contents to be sucked in or discharged. The pipette (700') extends downward, and the hollow formed in the pipette (700') may extend downward along the extension direction of the pipette (700'). In other words, the pipette (700') may be a type of pipe. An opening is formed on the lower side of the pipette (700') so that the contents may flow into or out of the hollow of the pipette (700') through the opening. The lower end of the pipette (700') may be formed with a narrower cross-sectional area compared to the upper end of the pipette (700'). Accordingly, when the contents are discharged or sucked in, the contents can be accurately discharged into a narrow area or finely adjusted to suck in the contents from a desired area. For reference, the pipette (700') may be formed of glass material, but is not limited thereto.

[0136] A pipette piston (800') can be inserted into the hollow of a pipette (700'). The pipette piston (800') can form a pipette movement space (700S') up to the opening. More specifically, with reference to FIG. 11(a), the space provided from the lower side of the pipette piston (800') to the opening of the pipette (700') can be defined as the pipette movement space (700S'). The pipette piston (800') can rise while the contents are moved into the hollow of the pipette (700') and descend while the contents are discharged through the opening of the pipette (700') to assist in the discharge of the contents. For reference, the pipette piston (800') may have a rubber material.

[0137] The cap sealing member (300x) is positioned on the lower side of the pipette (700') to seal the gap between the dropper (D') and the container (C') (see FIG. 8). More specifically, when the dropper (D') is coupled to the container (C'), it can seal the gap between the container (C') and the bulb (100'). The cap sealing member (300x) may have an annular shape. For reference, the cap sealing member (300x) may be made of rubber.

[0138] Below, with reference to FIG. 11, the configuration described above will be explained in more detail.

[0139] The bulb (100') may include a bulb body (110'). The bulb body (110') may have a compression space (100S) formed therein, as previously described. The bulb body (110') may include a portion covering the top of the pipette (700'). Accordingly, damage to the top of the pipette (700') may be prevented. The bulb body (110') may have a groove formed therein to allow a flange formed on the top of the pipette (700') to be inserted. The flange of the pipette (700') may be fitted into the groove formed in the bulb body (110') to prevent movement.

[0140] A flange portion (120') may be formed on the bulb body (110') and extend outward from the bulb body (110'). The flange portion (120') may support the pipette (700') by contacting the upper part of the pipette (700') and the adjacent part of the pipette (700'). The flange portion (120') may strengthen the connection between the pipette (700') and the bulb (100') by contacting the pipette (700') and the frictional force with the pipette (700'). At this time, the flange portion (120') may be extended to contact the side portion of the cap (300'). As shown in FIG. 11(b), when the bulb (100') is pressed, the flange portion (120') may be moved radially outward by reaction. If the flange portion (120') moves away from the pipette (700'), the pipette (700') may be disengaged from the flange portion (120'). In the embodiment according to the present disclosure, the flange portion (120') is prevented from moving or deforming radially outward by the inner surface of the cap (300'), so that contact between the flange portion (120') and the pipette (700') can be maintained even when the bulb (100') is pressurized. In other words, even when the bulb (100') is pressurized, friction between the pipette (700') and the flange portion (120') can be maintained. Furthermore, the cap (300') may have a through hole (310H) formed therein to allow the bulb body (110') to pass through. The flange portion (120') may be formed larger than the through hole (310H) to prevent it from passing through the through hole (310H).

[0141] The bulb (100') may include a coupling portion (130') that is coupled to a pipette (700') inside the bulb body (110'). The coupling portion (130') may be a part that forms a groove formed in the bulb (100') into which the aforementioned pipette (700') is inserted. The coupling portion (130') may be positioned at a height corresponding to the through hole (310H). Through this, the pipette (700') may be configured so that the end located on the side opposite to the opening is prevented from being positioned beyond the cap (300'). Force may be applied to the part of the bulb (100') located on the outside of the cap (300'). At this time, if the end of the pipette (700') is positioned on the pressurized part of the bulb (100'), force may also be applied to the pipette (700') when the bulb (100') is pressurized. The pipette (700') may be made of glass and may break if force is applied. Since the end of the pipette (700') according to the present embodiment may not be positioned beyond the cap (300'), the application of force is prevented, and the possibility of breakage may be low.

[0142] The pipette piston (800') may include a lower portion (810') having a shape corresponding to the portion forming the opening of the pipette (700') on the side facing the opening. Accordingly, when the pipette piston (800') is moved downward to the maximum extent and is in the discharge position, the residual contents inside the pipette (700') can be minimized.

[0143] The pipette piston (800') may include a contact portion (820') that contacts the inner surface of the pipette (700'). The contact portion (820') may protrude toward the inner surface of the pipette (700'). As the pipette piston (800') moves, the discharge of residual contents located inside the pipette (700') is induced, and at the same time, by the contact portion (820') scraping the inner surface of the pipette (700'), the residual contents attached to the inner surface of the pipette (700') may be moved together toward the opening formed in the pipette (700'). If the contents are highly viscous, or if the adhesion between the contents and the inner surface of the pipette (700') is strong, the residual contents inside the pipette (700') can be effectively removed by the contact portion (820'). The contact portion (820') may be provided as a pair, each located on the upper and lower sides.

[0144] The pipette piston (800') may include a cylindrical pipette piston body (801'). The pipette piston body (801') may be positioned between a pair of contact portions (820'). The pipette piston body (801') may be spaced apart from the inner surface of the pipette (700'). Accordingly, contact between the pipette (700') and other parts of the pipette piston (800') other than the contact portions (820') is minimized, thereby minimizing the frictional force generated between the pipette piston (800') and the pipette (700') while the pipette piston (800') is moving.

[0145] The pipette piston (800') may further include a wing portion (840') that extends from the pipette piston body (801') toward the inner surface of the pipette (700') as it moves away from the opening of the pipette (700'). A contact portion (820') may protrude from the wing portion (840'). The wing portion (840') may have a free end. Thus, the wing portion (840') may be free to move. The contact portion (820') extending from the wing portion (840') may also be free to move. Accordingly, while the pipette piston (800') is inserted into the appropriate position, the contact portion (820') may be free to move radially inward. At this time, the wing portion (840') may become thinner toward the end. The change in thickness of the wing portion (840') may be optimized to produce the above effect. Furthermore, since the wing portion (840') is inclined radially outward as its extension direction extends upward, it can be elastically biased toward the radially outward direction. Accordingly, when the pipette piston (800') is inserted in the appropriate position, the contact portion can be in closer contact with the pipette (700') due to the elastic bias of the wing portion (840').

[0146] The pipette piston (800') may include an incision (830') formed to allow air to pass through. The incision (830') may be a sheath or a hole. Since air must be moved to the compression space (100S) located above the pipette piston (800') as the pipette piston (800') moves as described below, the pipette piston (800') may require an incision (830') through which air can pass. At this time, the incision (830') may be configured to prevent the passage of liquid contents. This is because the liquid is located on the pipette movement space (700S') and needs to be discharged to the outside as the pipette piston (800') moves.

[0147] A deformation space (800S) extending from the top toward the bottom of the pipette piston (800') may be formed. An opening may be formed at the upper side of the space. Accordingly, the pipette piston (800') is easily compressed, so that when the pipette piston (800') is inserted into the pipette (700'), it can be easily inserted. In other words, the pipette piston body (801') may have a deformation space (800S') formed therein with an opening on the inside to allow for deformation.

[0148] Below, with reference to FIG. 11, the movement of the pipette piston (800') according to the deformation of the bulb (100') is explained.

[0149] As shown in FIGS. 11(a) to 11(b), when the bulb (100') is compressed by pressurizing it, the compression space (100S) can be compressed. When the compression space (100S) is compressed, the volume of the compression space (100S) decreases, so the pressure of the air within the compression space (100S) can increase. The air located within the compression space (100S) can escape through the opening of the pipette (700') through the hollow of the pipette (700') that communicates with the compression space (100S). At this time, when the bulb (100') is released from compression and returns to its original state, if the opening of the pipette (700') comes into contact with the contents, the compression space (100S) can expand as the bulb (100') returns to its original state. As the compression space (100S) expands, the pressure in the hollow of the pipette (700') communicating with the compression space (100S) decreases, and the contents in contact with the opening of the pipette (700') can be moved to the inside of the pipette (700'). At this time, if the bulb (100') is pressurized again, the contents can be discharged through the opening of the pipette (700') according to the same action as above.

[0150] More specifically, the pipette piston (800') can be moved toward the opening by a distance (L) corresponding to the volume of the compression space (100S) being compressed, based on the compression of the bulb (100'). The pipette piston (800') can be moved downward while the bulb (100') is being compressed, as shown in FIG. 11. At this time, the distance (L) corresponding to the volume of the compression space (100S) being compressed may mean the distance the pipette (700') is moved so that the pipette movement space (700S') is formed to be equal to the volume of the compression space (100S) being compressed. For example, if the hollow is cylindrical, the volume of the pipette movement space (700S'), calculated by multiplying the cross-sectional area of ​​the hollow by the distance (L), may be equal to the compression volume of the compression space (100S). However, depending on the case, the compression space (100S) and the pipette movement space (700S') may be similar with some error.

[0151] At this time, more contents can be ejected as the pipette piston (800') moves. In the absence of the pipette piston (800'), contents are ejected only by the pressure from the compression of the compression space (100S), whereas in the presence of the pipette piston (800'), more contents can be ejected because the contents are pushed out by the pressurization of the pipette piston (800'). The user aims to use a measured amount of contents indicated on the pipette (700'), and in order for contents to be ejected from the pipette (700') according to the user's purpose, it may be desirable for all contents contained inside the pipette (700') to be ejected from the pipette (700'). The pipette piston (800') can help achieve this purpose. In particular, the pipette piston (800') can maximize the reduction in volume of the pipette movement space (700S') by including the lower part (810'). Furthermore, the pipette piston (800') can also move the contents that may remain inside the pipette (700'), including the contact portion (820'). Since the cut portion (830') of the pipette piston (800') allows the air required for the compression space (100S) to pass through but does not allow the liquid contents to pass through, all of the liquid contents can be pushed out.

[0152] When the pressure of the bulb (100') is released, the pipette piston (800') can be moved toward the bulb (100') by a distance (L) based on the volume change of the compression space (100S). In other words, the pipette piston (800') can be moved away from the opening by a distance (L) corresponding to the volume expansion of the compression space (100S) based on the release of the bulb (100'). At this time, the bulb (100') itself may be an elastic body and can return to its original shape by a force that attempts to restore it.

[0153] The cross-sectional area of ​​the compression space (100S) may differ from the cross-sectional area of ​​the hollow of the pipette (700'). Alternatively, the cross-sectional area of ​​the compression space (100S) may be larger than the cross-sectional area of ​​the hollow of the pipette (700'). The travel distance (L) of the pipette piston (800') may require a specific distance or more to accommodate a desired amount of contents inside the pipette (700'), taking into account the cross-sectional area of ​​the pipette (700'). In this case, since the cross-sectional area of ​​the compression space (100S) is larger than that of the pipette (700'), the pipette (700') can be moved as much as needed simply by the user applying pressure to the bulb (100') from both sides.

[0154] Other embodiments in addition to the above examples are described below. Content common to the above examples will be omitted as much as possible, and the other embodiments will be described focusing on the differences. In other words, it is evident that if content not explained in other embodiments is necessary, it can be supplemented through the content of the above examples.

[0155] FIG. 12 is a cross-sectional view of a dropper (D) according to another embodiment of the second embodiment of the present invention.

[0156] Referring to FIG. 12, a dropper (D) according to another embodiment of the present invention will be described.

[0157] Another embodiment differs from the above embodiment in that the shape of the pipette piston (800'-1) is different.

[0158] The lower end of the pipette piston (800'-1) may not correspond to the shape of the opening side of the pipette (700'). A concave space extending downward may be formed in the upper center of the pipette piston (800'-1). A space corresponding to the space formed on the upper side may be formed on the lower side of the pipette piston (800'-1).

[0159] A contact portion (820') may be formed to surround the space formed on the upper and lower sides, respectively, of the pipette piston (800') from the side.

[0160] In this embodiment, compared to the above, the space-forming structure of the pipette piston (800'-1) is different, so compression in a different direction can be easily achieved.

[0161] As described above, the best embodiments have been disclosed in the drawings and specification. Specific terms have been used herein, but they are used only for the purpose of describing the invention and are not intended to limit the meaning or the scope of the invention as described in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the invention should be determined by the technical spirit of the appended claims.

[0162]

[0163] (Explanation of symbols)

[0164] 1, 1': Content container D, D-1, D-2, D': Dropper

[0165] 100, 100-2: Button 100': Bulb

[0166] 100S: Compressed space 110: Exposed area

[0167] 110': Bulb body 120: Button outer side

[0168] 120': Flange section 121H: Extension hole

[0169] 121A: Inclined surface 130: Inner side of button

[0170] 130': Connecting part 140: Piston insertion projection

[0171] 200: Elastic member 300, 300-2: External housing

[0172] 300': Cap 310: Guide protrusion

[0173] 300x: Cap sealing member 310H: Through hole

[0174] 320: Internal housing support 400, 400-2: Internal housing

[0175] 410: Cylinder 410S, 910S-2: Compression space

[0176] 410x: Cylinder sealing member 420: Button movement guide

[0177] 430: Cap housing 431: Pipette insert part

[0178] 430x: Cap housing sealing member 440-2: Connecting flange

[0179] 500: Cylinder Piston 600: Holder

[0180] 700, 700': Pipette 700x: Pipette sealing part

[0181] 700S, 700S': Pipette travel space 800, 800-1, 800', 800'-1: Pipette piston

[0182] 800S, 800S': Variation space 801, 801': Pipette piston body

[0183] 810, 810': Bottom section 820, 820': Contact section

[0184] 830, 830': Incision 840, 840': Wing

[0185] 900-2: Elastic part 910-2: Elastic part body

[0186] 920-2: Flange first support 930-2: Groove forming part

[0187] 931H-2: Flange insertion groove 932H-2: Pipette insertion groove

[0188] 940-2: Flange 2nd support 950-2: Pipette support

[0189] C, C': Container L: Movement distance

[0190] L1: 1st Street L2: 2nd Street

Claims

1. As a dropper, A pipette having a hollow formed on the inside and an opening formed to suck in or discharge contents; An actuating member coupled to the pipette to form a compression space communicating with the above hollow space, configured to allow the volume of the compression space to be compressed or restored; and It includes a pipette piston that is inserted into the above hollow and is movable inside the pipette, and A dropper, wherein the pipette piston is moved in the opening direction or the opposite direction by a distance corresponding to the volume change of the compression space based on the compression or release of the operating part.

2. In Paragraph 1, The above operating part includes a button capable of compressing or releasing a compression space communicating with the inside of the pipette, and The pipette piston is a dropper that moves toward the opening as the compression space is compressed based on the movement of the button toward the pipette.

3. In Paragraph 2, The pipette piston is a dropper in which, based on the movement of the button away from the pipette, the pipette piston moves in a direction away from the opening as the compression space expands.

4. In Paragraph 2, A cylinder coupled to the pipette and forming the compression space on the inside; and It further includes a cylinder piston inserted into the above compression space and coupled to the above button, When the above button is pressed, The cylinder piston moves a first distance toward the pipette to reduce the compression space by a first volume, and A dropper, wherein the pipette piston is moved by a second distance in a direction away from the cylinder piston based on the movement of the cylinder piston, such that the pipette movement space is reduced by a second volume corresponding to the first volume.

5. In Paragraph 2, It further includes an elastic member that is coupled to the pipette and forms the compression space on the inside, When the above button is pressed, The above elastic member is compressed by being pressed by the button, thereby reducing the compression space by a first volume, and The pipette piston is a dropper that moves away from the elastic part based on the compression of the elastic part, so that the pipette movement space is reduced by a second volume corresponding to the first volume.

6. In Paragraph 2, A dropper whose travel distance of the above button is different from the travel distance of the above pipette piston.

7. In Paragraph 4, The above first distance is shorter than the above second distance, and A dropper in which the cross-sectional area of ​​the cylinder piston is larger than the cross-sectional area of ​​the pipette piston.

8. In Paragraph 2, A dropper, wherein the pipette piston includes a lower portion having a shape corresponding to the portion forming the opening of the pipette on the side facing the opening.

9. In Paragraph 2, The above pipette piston is a dropper comprising an incision formed to allow air to pass through.

10. In Paragraph 4, When the pressure on the above button is released, The cylinder piston is moved away from the pipette by the first distance, and The pipette piston is a dropper that moves toward the cylinder piston by the second distance based on the movement of the cylinder piston.

11. In Paragraph 4, The above button is a dropper configured to be movable by the above first distance.

12. In Paragraph 4, The above button is configured to move together with the cylinder piston, and A dropper further comprising an elastic member configured to apply an elastic force to the button in a direction opposite to the direction toward the pipette.

13. In Paragraph 1, The above operating part is coupled with the pipette to form the compression space and includes a bulb configured to make the compression space compressible. The pipette piston is a dropper that moves toward or away from the opening by a distance corresponding to the volume change of the compression space, based on the compression or release of the bulb.

14. In Paragraph 13, A dropper in which the cross-sectional area of ​​the above compression space is larger than the cross-sectional area of ​​the above hollow of the pipette.

15. In Paragraph 13, A dropper, wherein the lower portion of the pipette piston has a shape corresponding to the portion forming the opening of the pipette.

16. In Paragraph 13, The pipette piston includes a pair of contact portions that are in contact with the inner surface of the pipette and are respectively located on the upper and lower sides. The pipette piston further includes a pipette piston body located between a pair of the contact portions, and The above pipette piston body is a dropper spaced apart from the inner surface of the pipette.

17. In Paragraph 16, The above pipette piston body is a dropper having a deformation space formed on the inside with an opening to allow deformation.

18. In Paragraph 13, The above pipette piston is a dropper comprising an incision formed to allow air to pass through.

19. In Paragraph 13, The above bulb is, Bulb body; and The bulb body includes a coupling portion on the inner side that is coupled to the pipette, and It further includes a cap that is coupled to the bulb and has a through hole formed to allow the bulb body to pass through, The above-mentioned joint is a dropper located at a height corresponding to the through hole.

Images