Automatically refillable dropper-type cosmetic container
The automatically filling dropper-type cosmetic container addresses the cumbersome nature of conventional dropper-type containers by using a piston and suction mechanism to automatically fill the dropper tube when the cap is opened, enhancing user convenience.
Patent Information
- Application Number
- JP2025541035
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-07-10
- Filing Date
- 2024-06-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2044-06-24
AI Technical Summary
Conventional dropper-type cosmetic containers require manual pressing to draw in contents, making them cumbersome to use.
An automatically filling dropper-type cosmetic container that fills a portion of the contents into the dropper tube when the cap is turned in the opposite direction to open the container body, utilizing a piston and suction mechanism to generate suction pressure and automatically fill the dropper tube.
The container provides enhanced convenience by automatically filling the dropper tube with cosmetic liquid when the cap is opened, eliminating the need for manual pressing and ensuring easy use.
Smart Images

Figure 2026503108000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to an automatically filling dropper-type cosmetic container, and more particularly to an "automatically filling dropper-type cosmetic container" that can further improve convenience of use by automatically filling the dropper tube with the contents (cosmetic liquid) in the process of opening the cap by turning it from the container body. [Background technology]
[0002] In recent years, demand for functional cosmetics aimed at maintaining youth, preventing aging caused by environmental pollution, improving wrinkles, and blocking UV rays has been rapidly increasing. Functional cosmetics are highly susceptible to external contamination. Therefore, when applying them by hand, as with regular cream-type cosmetics, or by holding the opening of the container close to the palm of the hand and then dispensing the contents, as with lotion-type cosmetics, contaminants from the hands can seep into the cosmetic container and cause the contents to deteriorate. Therefore, some functional cosmetics are packaged in dropper-type cosmetic containers. Dropper-type cosmetic containers prevent deterioration during the dispensing process and can dispense a fixed amount of the contents accurately to the target area, thereby preventing waste of cosmetics.
[0003] FIG. 1 is a cross-sectional view of a conventional dropper-type cosmetic container. Referring to FIG. 1, the conventional dropper-type cosmetic container comprises a container body 11 that contains the contents (cosmetic liquid), a cap 12 that can open and close the opening of the container body 11, a pressing part 13 made of an elastic material that generates pressure changes and is provided on the top of the cap 12, and a dropper tube 14 that extends below the pressing part 13 and draws in and expels the contents contained in the container body 11. To use such a conventional dropper-type cosmetic container, the user must immerse the dropper tube 14 in the contents in the container body 11, press the pressing part 13, and then separate the cap 12 from the container body 11. Thus, the conventional dropper-type cosmetic container has the drawback of being cumbersome to use because the user must manually press the pressing part 13 each time they use it to draw in the contents. Summary of the Invention [Problem to be solved by the invention]
[0004] The present invention is intended to solve these problems, and its object is to provide an "automatic filling dropper-type cosmetic container" that can further improve convenience of use by automatically filling a portion of the contents (cosmetic liquid) into the dropper tube when the cap is turned in the opposite direction to open the container body containing the contents. [Means for solving the problem]
[0005] In order to achieve the above object, the present invention provides a container body that accommodates contents and has a screw-type neck at its top, a wiper that is inserted into the neck of the container body by a press fit and connected to the neck of the container body and has a through-hole at its bottom, a cap that is connected to the neck of the container body by rotating forward and backward to open and close the neck, and has a pusher made of an elastic material at its top that can generate air pressure when pressed, and a connector that is inserted into the inside of the cap by a press fit and connected to the inside of the cap at its center and extends downward. a piston support member having an upper end inserted into a connector of the bracket by a press-fitting method and communicating with the pusher and a lower end extending downward and having an air hole drilled in a side surface; a piston disposed at the lower end of the piston support member and disposed so as to surround the outer periphery of the piston support member at a position higher than the air hole; a piston support member and the piston are accommodated and coupled to each other so as to be movable up and down, and disposed inside the wiper, and the cap is moved in a forward direction relative to the neck of the container body; a cylinder portion in which the piston descends together with the piston support member when the cap is turned in the opposite direction to close the cap relative to the neck of the container body, and the piston ascends together with the piston support member to generate a suction force when the cap is turned in the opposite direction relative to the neck of the container body to open it; a dropper tube having an inhalation member extending in a pipe shape from the center of the lower part of the cylinder portion, closely penetrating the through-hole of the wiper and accommodated in the container body, the inhalation member having a communication hole at its lower end so that when a suction force is generated in the cylinder portion, the cylinder portion sucks in and stores a portion of the content in the container body and discharges the stored content by generating air pressure when the pusher is pressed; and a bushing member connected to the uppermost end of the cylinder portion of the dropper tube by an interference fit, the bushing member allowing the piston support member and the piston to ascend within a certain range when the cap is turned in the opposite direction relative to the neck of the container body to open it, but preventing the piston support member and the piston from separating from the cylinder portion of the dropper tube, and the bushing member is provided between the wiper and the cylinder portion of the dropper tube;and a concave-convex engaging member that accommodates and maintains the cylinder portion of the dropper tube in a coupled state inside the wiper until the piston support member and the piston rise and contact the bushing member during the process of opening the cap by turning it in the opposite direction relative to the neck of the container body.
[0006] According to the present invention, the concave-convex engaging member includes an engaging groove formed in a concave shape in the circumferential direction on the inner wall of the wiper, and an engaging protrusion provided in a strip shape along the outer wall of the cylinder portion of the dropper tube, which engages with the engaging groove in a concave-convex manner when the cap is fully turned to close it on the neck of the container body, thereby temporarily fixing the dropper tube to the wiper. [Effects of the Invention]
[0007] According to the "automatic filling dropper-type cosmetic container" of the present invention having the above-mentioned configuration, when the cap is turned in the opposite direction and gradually opened, the bracket and piston support member rise from the container body, and the piston rises for a certain distance until it comes into contact with the bushing member while in close contact with the wall of the cylinder portion, thereby generating suction pressure inside the cylinder portion of the dropper tube. Due to this suction pressure generated inside the cylinder portion, a portion of the content (cosmetic liquid) inside the container body is sucked into the suction member of the dropper tube through the communication hole, automatically filling the container. In other words, suction pressure is generated in the cylinder portion during the process of turning the cap in the opposite direction from the container body and removing the dropper tube, and therefore the content (cosmetic liquid) is automatically filled (sucked into) the suction member of the dropper tube, which has the advantage of being more convenient to use. [Brief explanation of the drawings]
[0008] [Figure 1] FIG. 1 is a cross-sectional view showing a conventional dropper-type cosmetic container. [Figure 2] 1 is a perspective view showing an automatically filling dropper-type cosmetic container according to the present invention. [Figure 3]1 is a cross-sectional view showing the internal structure of an automatically filling dropper-type cosmetic container according to the present invention. [Figure 4] 10 is an enlarged view showing the internal structure of a cap equipped with a pusher according to the present invention. FIG. [Figure 5] 10 is a view showing the cosmetic container according to the present invention with the cap completely fastened to the neck of the container body. FIG. [Figure 6] FIG. 6 is an enlarged view of a portion "VI" in FIG. 5. [Figure 7] 10A to 10C are diagrams illustrating a process of opening the container body by turning the cap in the cosmetic container according to the present invention. [Figure 8] FIG. 8 is an enlarged view of the portion "VIII" in FIG. 7. [Figure 9] 10 is a view showing the cosmetic container according to the present invention in a state where the cap is completely separated from the neck of the container body. FIG. [Figure 10] FIG. 10 is an enlarged view of the "X" portion of FIG. 9. DETAILED DESCRIPTION OF THE INVENTION
[0009] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. Briefly, Figures 2 to 4 show the configuration of a dropper-type cosmetic container according to the present invention, and Figures 5 to 10 show the use of the dropper-type cosmetic container according to the present invention.
[0010] <Description of the configuration of the automatically filling dropper-type cosmetic container according to the present invention> The automatically filling dropper-type cosmetic container according to the present invention is configured so that a portion of the contents (cosmetic liquid) is automatically filled into a dropper tube when the cap is turned in the opposite direction relative to the container body containing the contents to open it. As shown in FIGS. 2 and 3, the container comprises a container body 100 containing the contents (cosmetic liquid) A, a wiper 200 connected to the neck 110 of the container body 100 and having a through-hole 210 at the bottom, a cap 300 connected to the neck 110 of the container body 100 so as to be able to open and close and having a pusher 310 disposed at the top, a bracket 400 coaxially disposed inside the cap 300, a piston support member 500 coaxially attached inside the bracket 400 and having a piston 600 disposed on the outer periphery, a cylinder portion 710 and an inner The cosmetic container according to the present invention includes: dropper tube 700 having suction member 720 that can suck in and store the contents or expel the contents to the outside by internal pressure; bushing member 800 that is connected to the top end of cylinder portion 710 of dropper tube 700 by an interference fit and prevents piston 600, together with piston support member 500, from coming out of cylinder portion 710 of dropper tube 700; and concave-convex engaging member 900 that is provided between wiper 200 and cylinder portion 710 of dropper tube 700 and keeps cylinder portion 710 of dropper tube 700 housed inside wiper 200 and connected thereto until piston support member 500 and piston 600 rise and contact bushing member 800 during the process of opening cap 300 by turning it in the opposite direction relative to neck 110 of container body 100. Most of the components of the cosmetic container according to the present invention are injection molded from synthetic resin, and a detailed description of the materials will be omitted.
[0011] 2 and 3, the container body 100 of the cosmetic container according to the present invention is formed in a cylindrical shape to accommodate contents therein, and has a screw-type neck 110 at its top.
[0012] The wiper 200 is inserted into the neck 110 of the container body 100 by an interference fit, and has a through-hole 210 at the bottom, the diameter of which matches the diameter of the suction member 720 of the dropper tube 700. The wiper 200 serves to cleanly wash away the contents A adhering to the outer wall of the suction member 720 when the suction member 720 of the dropper tube 700 is removed from the container body 100.
[0013] 3 and 4, the cap 300 is connected to the neck 110 of the container body 100 so as to be able to rotate forward and backward to open and close, and is provided at its top with a pusher 310 made of an elastic material that can generate air pressure when pressed. The pusher 310 is firmly integrated with the top of the cap 300 via a shoulder member 320.
[0014] The bracket 400 is formed in a cylindrical shape and is inserted into the inside of the cap 300 using an interference fit method to connect it, and a connecting member 410 is formed in the center, which communicates with the inside of the pusher 310 and extends downward.
[0015] Piston support member 500 has a hollow air passage 520 formed therein, and its upper end is inserted into and connected to connector 410 of bracket 400 by an interference fit, thereby communicating with pusher 310. The lower end of piston support member 500 extends downward, and an air hole 510 is drilled in its side surface. Piston 600 is disposed at the lower end of piston support member 500, and is disposed at a position higher than air hole 510 so as to surround the outer periphery of piston support member 500.
[0016] Dropper tube 700 is composed of a cylinder portion 710 and a pipe-shaped suction member 720. Cylinder portion 710 of dropper tube 700 houses and couples piston 600 together with piston support member 500 so that they can move up and down, and is disposed inside wiper 200. When cap 300 is turned in the forward direction relative to neck 110 of container body 100 to close it, piston 600 descends together with piston support member 500, and when cap 300 is turned in the reverse direction relative to neck 110 of container body 100 to open it, piston 600 ascends by a certain distance S together with piston support member 500, generating a suction force. The suction member 720 of the dropper tube 700 extends in a pipe shape from the center of the lower part of the cylinder part 710, penetrates the through-hole 210 of the wiper 200 in a tightly contacting state, and is housed in the container body 100. When a suction force is generated in the cylinder part 710, a part of the contents in the container body 100 is sucked in and stored, and a flow hole 730 is drilled at the lower end so that air pressure can be generated by pressing the pusher 310, and the stored contents A can be expelled.
[0017] Bushing member 800 is manufactured in a cylindrical shape and is connected to the uppermost end of cylinder portion 710 of dropper tube 700 by an interference fit method. In the process of opening cap 300 by turning it in the opposite direction relative to neck 110 of container body 100, bushing member 800 allows piston support member 500 and piston 600 to move upward within a certain range S, while preventing piston support member 500 and piston 600 from separating from cylinder portion 710 of dropper tube 700.
[0018] Concave-convex engaging member 900 is provided between wiper 200 and cylinder portion 710 of dropper tube 700, and serves to maintain cylinder portion 710 of dropper tube 700 housed inside wiper 200 until piston support member 500 and piston 600 rise and contact bushing member 800 during the process of opening cap 300 by rotating it in the opposite direction relative to neck 110 of container body 100. In this embodiment of the present invention, concave-convex engaging member 900 includes an engaging groove 910 formed in a concave shape in the circumferential direction on the inner wall of wiper 200, and an engaging protrusion 920 formed in a strip-like shape along the outer wall of cylinder portion 710 of dropper tube 700, which engages with engaging groove 910 in a concave-convex manner to temporarily fix dropper tube 700 in position inside wiper 200 when cap 300 is fully rotated to close it relative to neck 110 of container body 100.
[0019] Next, the use of the automatic filling dropper-type cosmetic container according to the present invention configured as described above will be described with reference to FIGS.
[0020] 5 and 6, when cap 300, with dropper tube 700 disposed therein, is rotated in the forward direction (the direction of arrow R1) to completely close it relative to neck 110 of container body 100, suction member 720 of dropper tube 700, which is open inside, passes through through-hole 210 of wiper 200 and is immersed in content A of container body 100. When cap 300 is rotated completely to close it relative to neck 110 of container body 100, bracket 400 and piston support member 500 also descend together with cap 300, and piston 600 is positioned at the lowest position of cylinder portion 710 of dropper tube 700 (see the direction of the arrow in FIG. 6). In addition, cylinder portion 710 of dropper tube 700 is also maintained in a state where it is completely housed inside wiper 200, and cylinder portion 710 of dropper tube 700 is constrained inside wiper 200 by concave-convex engaging member 900, i.e., engaging protrusion 920 engaging with engaging groove 910 in a concave-convex manner.
[0021] 7 and 8, when cap 300 is turned in the opposite direction (the direction of arrow R2) to gradually open it, bracket 400 and piston support member 500 rise together with cap 300 from container body 100, and piston 600 rises a certain distance until it comes into contact with bushing member 800 while in close contact with the wall surface of cylinder portion 710 (see the arrow direction in FIGS. 7 and 8). This upward movement of piston 600 generates suction pressure inside cylinder portion 710, and thus a portion of content (cosmetic lotion) A inside container body 100 is sucked into suction member 720 of dropper tube 700 through communication hole 730 and filled therein.
[0022] 9 and 10 , when cap 300 is further rotated in the opposite direction (the direction of arrow R2) to be completely opened, bracket 400 and piston support member 500 rise and separate from container body 100 together with cap 300, and piston 600 pulls cylinder portion 710 of dropper tube 700 upward (see the direction of the arrow in FIG. 9 ). Therefore, as interlocking protrusion 920 separates from interlocking groove 910, the restraining force of cylinder portion 710 of dropper tube 700 on the inside of wiper 200 is released, and suction member 720 of dropper tube 700 comes out of container body 100. Here, the outer wall of suction member 720 of dropper tube 700 comes out while still in close contact with through-hole 210 of wiper 200, allowing it to be washed away cleanly.
[0023] In this manner, in the process of rotating cap 300 in the opposite direction relative to container body 100 and removing dropper tube 700, suction pressure is generated in cylinder portion 710, and content (cosmetic liquid) A is automatically filled (inhaled) into suction member 720 of dropper tube 700, making it easy to use the content. That is, by pinching and pushing pusher 310, content A filled in suction member 720 of dropper tube 700 is expelled by air pressure, allowing the content to be used.
[0024] Then, after content A filled in suction member 720 of dropper tube 700 is completely discharged, cap 300 is turned to close container body 100, and as shown in Figures 5 and 6, bracket 400 and piston support member 500 descend, and piston 600 also descends to its lowest position while in close contact with cylinder portion 710 of dropper tube 700. Furthermore, cylinder portion 710 of dropper tube 700 is also completely housed inside wiper 200, and engaging protrusion 920 engages with engaging groove 910 in a concave-convex manner, thereby restraining cylinder portion 710 of dropper tube 700 again. [Industrial Applicability]
[0025] The present invention can be widely applied to the field of "dropper-type cosmetic containers," which allow for more convenient use of the contents, since when the cap is turned to open the container body containing the contents (cosmetic liquid), the contents are automatically filled into the dropper tube. [Explanation of symbols]
[0026] A. Contents 100 container body 110 Neck 200 wiper 210 Through hole 300 caps 310 Pusher 320 Shoulder member 400 bracket 410 Connectors 500 Piston support member 510 Air Hole 520 Air flow path 600 piston 700 Dropper tube 710 Cylinder section 720 Intake member 730 Flow hole 800 Bushing material 900 Concave and convex interlocking member 910 Engagement groove 920 Interlocking protrusion
Claims
1. A container body (100) that accommodates contents inside and has a screw-type neck (110) at the top; a wiper (200) that is inserted into and coupled to the neck (110) of the container body (100) in an interference fit manner and has a through hole (210) drilled at the bottom; a cap (300) that is connected to the neck (110) of the container body (100) so as to be openable and closable by rotating in forward and reverse directions and that has a pusher (310) made of an elastic material at the top that can generate air pressure by pressing; a bracket (400) that is inserted coaxially into the inside of the cap (300) by an interference fit and has a downwardly extending connector (410) formed in the center thereof and that communicates with the inside of the pusher (310); a piston support member (500) whose upper end is inserted into and connected to the connector (410) of the bracket (400) by a press fit and communicates with the pusher (310), whose lower end extends downward and whose side surface is provided with an air hole (510); a piston (600) disposed at the lower end of the piston support member (500) and surrounding the outer periphery of the piston support member (500) at a position higher than the air hole (510); The piston support member (500) and the piston (600) are housed and coupled inside the wiper (200) so as to be movable up and down, and are disposed inside the wiper (200). When the cap (300) is turned in a forward direction relative to the neck (110) of the container body (100) to close it, the piston (600) descends together with the piston support member (500), and when the cap (300) is turned in a reverse direction relative to the neck (110) of the container body (100) to open it, the piston (500) ascends together with the piston support member (500), generating a suction force. a dropper tube (700) including a cylinder part (710) that can be inserted into the container body (100), and an inhalation member (720) that extends in a pipe shape from the center of the lower part of the cylinder part (710), penetrates the through-hole (210) of the wiper (200) in a tight contact state, and is accommodated in the container body (100), and has a flow hole (730) drilled at its lower end so that when a suction force is generated in the cylinder part (710), it can suck in and store a part of the contents in the container body (100), and can expel the stored contents by generating air pressure when the pusher (310) is pressed; a bushing member (800) that is connected to the uppermost end of the cylinder portion (710) of the dropper tube (700) by a press-fit method and that allows the piston support member (500) and the piston (600) to move upward for a certain range (S) while preventing the piston support member (500) and the piston (600) from separating from the cylinder portion (710) of the dropper tube (700) when the cap (300) is turned in a reverse direction relative to the neck (110) of the container body (100) to open it; and a concave-convex engaging member (900) that is provided between the wiper (200) and the cylinder portion (710) of the dropper tube (700) and that maintains the cylinder portion (710) of the dropper tube (700) housed and coupled inside the wiper (200) until the piston support member (500) and the piston (600) rise and contact the bushing member (800) in the process of opening the cap (300) by turning it in the opposite direction relative to the neck (110) of the container body (100).
2. The concave-convex interlocking member (900) is A meshing groove (910) formed in a circumferentially concave shape on the inner wall of the wiper (200); and an engaging protrusion (920) that is provided in a strip-like shape along the outer wall of the cylinder portion (710) of the dropper tube (700) and that engages with the engaging groove (910) in a concave-convex manner to temporarily fix the dropper tube (700) in position on the wiper (200) when the cap (300) is fully turned to close the neck (110) of the container body (100).
Citation Information
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