Cosmetic lid assembly having open bottom type packing

Abstract

Disclosed in the present invention is a cosmetic lid assembly provided with a packing having an open-type packing bottom. The present invention relates to a cosmetic lid assembly mounted in a container accommodating cosmetic content containing liquid vitamin, comprising: a cap mounted to the connection portion of the container in a screw-coupling manner; a sealing packing member which is installed in the cap and inserted into the connection portion in order to seal the inside of the container; and a decoration plate installed on the upper end of the cap and preventing the sealing packing member from being exposed to outside, wherein the sealing packing member is provided with a side wall portion formed with a closed upper surface and an open lower surface.

Description

Cosmetic lid assembly with bottom open packing

[0001] The present invention relates to a lid assembly for cosmetics, and more particularly, to a lid assembly for cosmetics having a packing having an open bottom.

[0002] Conventional cosmetic containers have a problem where air can flow freely through the joint between the body and the cap, even when the cap is attached to the container body. This means that cosmetics are often used with the cap open, which can expose the outlet (inlet) of the body container containing the cosmetics to the atmosphere.

[0003] Furthermore, there was a problem that if foreign substances or water in the air penetrated into the container through this outlet, the original function of the cosmetic was lost and it could no longer be used as a cosmetic.

[0004] Meanwhile, a cosmetic container containing liquid vitamins, etc. has been disclosed.

[0005] In containers containing these vitamins, shaking during transport or handling can cause gas to build up inside the container, increasing internal pressure. This pressure exerts pressure on the lower portion of the sealing packing, pushing it upward and compromising its sealing performance. In severe cases, this can lead to leakage of contents or air ingress into the container.

[0006] In particular, conventional cosmetic containers are manufactured by injection molding, but there is a limit to forming a constant curvature at the entrance of the container (curvature deviation occurs at the entrance of the container), which limits the improvement of the airtightness of the container.

[0007] Additionally, depending on the storage conditions of the container, the sealing may be compromised if the packing shrinks or expands and becomes deformed due to external factors (e.g., temperature and humidity).

[0008] In particular, recently, a variety of high-content vitamin ampoules have been released, ranging from the initial 14% to the recent 30% content of vitamin C.

[0009] Fig. 1 is a photograph showing a state in which the packing area of ​​a conventional high-content vitamin ampoule product is damaged by the internal pressure of the container. It shows a case in which the center of the sealing packing member (3) mounted on the cap (2) connected to the upper side of the container (1) is damaged by the internal pressure (especially a case in which the resin injection area formed during injection molding is easily damaged).

[0010] Therefore, as the content of vitamin C increases, a stronger lid sealing structure is required for cosmetic containers to ensure a stronger seal.

[0011] <Prior Document 1>: Republic of Korea Patent Publication No. 2005-0050378 (Publication Date: May 31, 2005)

[0012] The present invention was created to solve the above problems, and its purpose is to provide a cosmetic lid assembly having a bottom open packing that can significantly improve the airtightness of a cosmetic container containing high amounts of vitamin C.

[0013] According to one embodiment of the present invention for achieving the above purpose, there is provided a cosmetic cap assembly mounted on a container containing cosmetic contents including a liquid vitamin, comprising: a cap mounted on a connecting portion of the container in a screw-joint manner; a sealing packing member mounted on the cap and inserted into the connecting portion to seal the interior of the container; And a decorative plate mounted on the upper end of the cap to prevent external exposure of the sealing packing member, the sealing packing member has a side wall portion formed so that the upper surface is closed and the lower surface is open, a mounting hole is formed on the upper surface of the cap, and a step having different diameters is formed on the inner circumference of the mounting hole, and the decorative plate is mounted on the first surface of the upper portion of the inner circumference based on the step, and the upper surface of the sealing packing member is in close contact with the second surface of the lower portion of the inner circumference, and the cap and the sealing packing member are formed as an integral body through double injection, and the sealing packing member has a lower open packing including a central protrusion formed on the lower surface of the closed upper portion of the side wall portion, and a plurality of uneven portions formed protruding along the edge centered on the central protrusion.

[0014] Among the plurality of protruding portions, a first protruding portion located relatively close to the central protrusion may be formed to be longer downward than other second protruding portions, and a lower end of the side wall portion may have a side wall slope that is inclined inward, and at least one contact protrusion may be formed on the outer circumferential surface of the side wall portion.

[0015] According to the present invention, the cap and the sealing packing member are manufactured as one piece through double injection, thereby enabling easy assembly.

[0016] By forming a side wall portion with an open bottom in the sealed packing member, the bottom splitting phenomenon that occurs in existing packing members with a sealed bottom can be prevented, and the length of the packing member can be relatively shortened, enabling automatic assembly by machine, thereby improving production efficiency.

[0017] By reinforcing the packing thickness through the central protrusion and recessed portion of the sealing packing member, deformation due to increased internal pressure is prevented, and in addition, by dispersing the gas rising inside the container through multiple recessed portions rather than concentrating in one place, the sealing property can be improved (leakage prevention).

[0018] Additionally, the increase in internal pressure can be reduced by increasing the gas occupancy space through a sealed packing member with an open bottom.

[0019] In addition, by forming an inwardly inclined slope at the end of the side wall of the sealing packing member, it is possible to prevent mucus from flowing into the gap and causing leakage due to an increase in internal pressure.

[0020] In addition, the problem of fingernail damage that occurs when a user removes a packing member can be solved through the present invention by using a packing structure that is double-injected and integrated into the cap.

[0021] Figure 1 is a photograph showing a state in which the packing area of ​​a conventional high-content vitamin ampoule product is damaged due to internal pressure of the container.

[0022] Figure 2 is an exploded view of a cosmetic cap assembly having a lower open packing according to one embodiment of the present invention;

[0023] FIG. 3 is a side cross-sectional reference drawing of a sealing packing member of a cosmetic lid assembly having a lower open packing according to one embodiment of the present invention;

[0024] FIG. 4 is a partial cutaway view of a cosmetic cap assembly having a lower open packing according to one embodiment of the present invention;

[0025] FIG. 5 is a side cross-sectional view of a cosmetic lid assembly having a bottom open packing according to one embodiment of the present invention;

[0026] FIG. 6 is a side cross-sectional view showing the state of use of a sealing packing member of a cosmetic lid assembly having a lower open packing according to one embodiment of the present invention.

[0027] FIG. 7 is a partial cutaway side view showing a sealing packing member of a cosmetic lid assembly having a lower open packing according to one embodiment of the present invention, and

[0028] Figure 8 is a state diagram of Figure 7 viewed from below.

[0029] The present invention will now be described in more detail with reference to the attached drawings. The present invention is not limited to the drawings presented below and may be embodied in other forms. Furthermore, like reference numerals designate like elements throughout the specification.

[0030] Referring to FIGS. 2 to 5, a cosmetic lid assembly having a lower open packing of the present invention is mounted on a container (10) that accommodates cosmetic contents including liquid vitamins.

[0031] In the above configuration, the cap (20) is mounted to the connecting portion (15) of the container (10) in a screw-joint manner. The cap (20) has a mounting hole (21) formed at the top, screw threads formed inside, and is usually made of a plastic material.

[0032] The sealing packing member (30) is formed integrally with the cap (20) through double injection and is inserted into the connecting portion (15) to seal the interior of the container (10).

[0033] The decorative plate (40) is mounted on the top of the cap (20) and functions to prevent external exposure of the sealing packing member (30). That is, as a finishing element, it can be composed of various colors or different materials depending on the usage environment.

[0034] Referring to Fig. 3, the sealing packing member (30) has a side wall portion (35) formed so that the upper surface is closed and the lower surface is open. That is, the side wall portion (35) may be formed in a cylindrical shape with the bottom surface open.

[0035] Additionally, a central protrusion (31) is formed on the lower surface of the closed upper surface of the side wall portion (35). A plurality of protruding portions (32, 33) are formed along the edges centered on the central protrusion (31).

[0036] That is, the first uneven portion (32) is formed at a position relatively close to the central protrusion (31), and the second uneven portion (33) is formed at a position relatively far from the central protrusion (31). Here, the first uneven portion (32) is formed longer downward than the second uneven portion (33).

[0037] Accordingly, the gas rising inside the container (10) is dispersed rather than concentrated in one place by the central protrusion (31) and the first and second protrusions (32, 33), thereby improving the airtightness. In addition, the central protrusion (31) and the first and second protrusions (32, 33) perform the function of reinforcing the flesh of the upper surface of the sealing packing member (30), thereby preventing damage (tearing damage) caused by a conventional increase in internal pressure.

[0038] Meanwhile, the lower part of the side wall portion (35) has a side wall slope (35a) that is inclined inward. This side wall slope (35a) performs the function of guiding the gas rising inside the container to the inside so that it does not flow into the gap of the side wall portion (35) and cause leakage.

[0039] In addition, a plurality of contact protrusions (36) are formed on the outer surface of the side wall portion (35a), and the contact protrusions (36) are in contact with the inner wall of the connecting portion (15) of the container (10), thereby further improving the airtightness.

[0040] Referring to FIGS. 6 to 8, a mounting hole (21; see FIG. 3) is formed on the upper surface of the cap (20), and a step (21A) having different diameters is formed on the inner surface of the mounting hole (21). Based on this step (21A), the inner surface of the mounting hole (21) is divided into a first surface (25a) and a second surface (25b).

[0041] Here, a decorative plate (40) is mounted on the first surface (25a) at the top with respect to the step (21A). In addition, the upper surface of a sealing packing member (30) is pressed against the second surface (25b) at the bottom with respect to the step (21A).

[0042] The cosmetic lid assembly having the lower open packing of the present invention having such a configuration can be easily assembled as the cap (20) and the sealing packing member (30) are manufactured as one piece through double injection.

[0043] In addition, by forming a side wall portion (35) with an open bottom in the sealed packing member (30), the bottom splitting phenomenon (the problem of the sealed packing bottom surface coming into contact with the container entrance when combined and splitting (foreign substances entering)) that occurs in existing packing members with a sealed bottom is prevented.

[0044] In addition, the sealing packing member (30) of the present invention can secure sufficient airtightness even when the length of the side wall portion (32) is relatively short, so that automatic assembly using a machine is possible, thereby improving production efficiency.

[0045] In addition, by reinforcing the thickness of the packing through the central protrusion (31) and the plurality of protruding portions (32, 33) of the sealing packing member (30), deformation due to increased internal pressure can be prevented. In addition, by dispersing the gas rising inside the container (10) through the plurality of protruding portions (32, 33) rather than concentrating in one place, the airtightness can be further improved.

[0046] In addition, the increase in internal pressure can be reduced by increasing the gas occupied space through the sealing packing member (30) with the lower part open (thereby also providing a leakage prevention effect).

[0047] In addition, by forming an inwardly inclined inclined surface (35a) at the end of the side wall portion (35) of the sealing packing member (30), it is possible to prevent mucus from flowing into the gap and leaking due to an increase in internal pressure.

[0048] Although the present invention has been illustrated and described above with respect to specific embodiments, the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains can make various modifications and implement the present invention without departing from the gist of the technical idea of ​​the present invention described in the claims below.

Claims

1. A cosmetic cap assembly mounted on a container containing cosmetic contents including liquid vitamins, A cap screw-mounted to the connecting portion of the above container; A sealing packing member mounted on the cap and inserted into the connecting portion to seal the interior of the container; and It includes a decorative plate mounted on the top of the cap to prevent external exposure of the sealing packing member, A cosmetic lid assembly having a bottom open packing, characterized in that the above sealing packing member has a side wall portion formed so that the upper surface is closed and the lower surface is open.

2. In paragraph 1, The above sealing packing member, A central protrusion formed on the lower surface of the blocked upper portion of the above side wall, and A cosmetic cap assembly having a lower open packing including a protruding portion formed along an edge centered on the central protrusion.

3. In paragraph 2, The above-mentioned protrusions are composed of multiple pieces, A first protrusion is formed at a position relatively close to the central protrusion, A second protrusion is formed at a relatively distant location from the central protrusion, A cosmetic lid assembly having a lower open packing, characterized in that the first protruding portion is formed longer downward than the second protruding portion.

4. In paragraph 2 or 3, The lower part of the above side wall portion has a side wall slope that is inclined toward the inside, A cosmetic cap assembly having a lower open packing characterized in that at least one sealing projection is formed on the outer surface of the side wall portion.

5. In paragraph 1, A mounting hole is formed on the upper surface of the above cap, The inner surface of the above mounting hole is formed with steps having different diameters, A decorative plate is installed on the upper part based on the above step, A cosmetic lid assembly having a lower open packing, characterized in that the upper surface of the sealing packing member is in close contact with the lower portion based on the above-mentioned step.

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