KR102271157B1 - Lipstick case - Google Patents

Abstract

The lipstick case according to the present invention relates to a lipstick case comprising a; a container having a receiving space having one side open therein, and a cap configured to seal the opening of the container, the lipstick case having a screw thread formed on an outer circumferential surface and the container of a male screw provided inside the , a female screw screwed to the outer circumferential surface of the male screw, an anti-rotation ring in contact with the female screw and one end of the male screw through-coupled, and a male screw protruding through the anti-rotation ring. A piston coupled to one end and a hollow stick tube having an inner circumferential surface in contact with the outer circumferential surface of the piston and one end coupled to the anti-rotation ring, wherein the cap is composed of a double cap in which an inner cap and an outer cap are coupled do it with

Description

Lipstick case {Lipstick case}

The present invention relates to a lipstick case in which a lipstick is accommodated, and more particularly, to a lipstick case in which a cap provided in the lipstick case is doubled to improve the sealing force of the case.

In general, lipstick, which is a type of cosmetics, is accommodated in the interior of the case body with an open top in the form of stick-shaped lipstick contents in the vertical direction, and in this state, the cover is extrapolated to surround the upper periphery of the case body. It has a closed structure inside.

If you want to use the lipstick contents in this state, remove the cover from the case body and then lift the lipstick contents upwards to protrude from the upper end of the case body.

After use, drop the lipstick content downward and completely accommodate it inside the case body, then extrapolate the cover to the case body again and store the inside of the case body in a state blocked from the outside.

However, in the conventional lipstick cosmetic container, the sealing between the case body and the cover is not perfect, and the gap between the cover and the case body is increased due to continuous opening and closing of the cover, so that the air outside the lipstick case is introduced into the inside. , there is a problem in that the lipstick cosmetic is changed or hardened while continuously in contact with external air.

In order to solve the above problems, conventionally, as shown in FIG. 1 , a sealing member 3 is configured at the top inside the cover to prevent the lipstick from being exposed to external air. However, in the configuration shown in FIG. 1, there is no sealing structure between the cosmetic holder 1 and the fastening cap 2, and external air flows between the protective tube and the cosmetic holder or between the cosmetic holder and the fastening cap, so that the inside of the lipstick cosmetic container is damaged. The problem of not sealing still exists.

Republic of Korea Patent Publication No. 20-2015-0004424

The present invention is to solve the conventional problems as described above, to improve the sealing force between the container and the cap sealing the container in which the lipstick is accommodated.

The object of the present invention is not limited thereto, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

The lipstick case for achieving the object of the present invention as described above includes a container having a receiving space having an open side therein, a cap configured to close the opening of the container, a screw thread is formed on the outer circumferential surface, and a number provided inside the container a screw, a female screw screwed to the outer circumferential surface of the male screw, an anti-rotation ring in contact with the female screw and one end of the male screw through-coupled, a piston coupled to one end of the male screw protruding through the anti-rotation ring, and and a hollow stick tube having an inner circumferential surface in contact with the outer circumferential surface of the piston and one end coupled to the anti-rotation ring.

In addition, the female screw is composed of a hollow tube, and includes a female screw coupling part having a thread formed on an inner circumferential surface, and a female screw fixing part formed continuously with the female screw coupling part and having an outer diameter larger than that of the female screw coupling part. .

In addition, the anti-rotation ring has a disk-shaped body, a center hole formed in the center of the body; and a protrusion extending from the body, wherein an inner circumferential surface of the protrusion is coupled to an outer circumferential surface of the female screw coupling portion.

In addition, a slit is formed in the female screw fixing part, and a serration is formed in an outer circumferential surface of the female screw coupling part.

In addition, the piston is formed in a cylindrical shape, the diameter of both ends is formed larger than the diameter of the center, the both ends are coupled to the inner circumferential surface of the stick tube in a state elastically deformed inward in the radial direction.

In addition, the cap is composed of an outer cap having an open inner space formed on one side, and an inner cap having an inner space having an open inner space in the center and configured to be inserted into the space of the outer cap. and the inner cap is coupled to the stick tube.

In addition, an inner cap protrusion protruding outwardly is formed on the outer circumferential surface of the inner cap, and an outer cap protrusion protruding inwardly is formed on the inner circumferential surface of the outer cap, wherein the inner cap protrusion and the outer cap protrusion are in the axial direction of the cap. It may be configured to be spaced apart by a predetermined distance.

The lipstick sealed container according to the present invention has the following effects.

First, the sealing force of the case by the cap is improved.

The lipstick case according to the present invention is composed of a container and a cap sealing the container, and the cap is composed of a double cap of an inner cap and an outer cap. The outer cap is coupled to the container to seal the inside, and the inner cap is coupled to the stick tube for accommodating the lipstick to seal the inside. In addition, the inner cap and the outer cap are movably coupled to each other, so that opening and closing of the container is sequentially configured. Accordingly, the sealing stability of the container is greatly improved, and the sealing force is improved by double sealing.

Second, the structure is very simple because it is configured to generate a rotation sound effect using the serration formed on the outer peripheral surface of the female screw.

Conventionally, in order to generate a sound when the container is rotated and to apply a resistance to the rotation, a spring and a plurality of irregularities are additionally provided. However, in the present invention, the female screw and the anti-rotation ring are configured to contact, and a serration and a protrusion are formed on the contact surface, and the protrusion passes the serration when the container is rotated to generate rotational resistance and a sound. With the above configuration, the number of parts can be greatly reduced and, of course, there is an effect that assembly is very easy.

Third, both ends of the piston are in close contact with the inner circumferential surface of the stick tube to form a double sealed structure.

The lipstick case according to the present invention is configured such that the piston is connected to the male screw end, and the outer circumferential surface of both ends of the piston is elastically coupled to the inner circumferential surface of the stick tube. The inflow of air from the lower part of the lipstick is blocked by the above configuration, thereby greatly improving sealing performance.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view showing a conventional lipstick case
2 is a perspective view of a lipstick case according to the present invention;
3 is a cross-sectional view of a lipstick case according to the present invention;
4 (a) and 4 (b) are cross-sectional perspective views showing the coupling structure of the male screw and the female screw according to the present invention;
5 (a) and 5 (b) are perspective views showing the coupling structure of the male screw and female screw alc anti-rotation structure according to the present invention;
6 is an enlarged view showing the coupling portion of the cap and the container according to the present invention;
7 is a perspective view showing components provided in the lipstick case of the present invention;
8 is a cross-sectional view of a cap according to the present invention;
9 is a cross-sectional view showing the opening and closing process of the cap according to the present invention;

Embodiments will be described with reference to the accompanying drawings. In describing the present embodiment, the same names and the same reference numerals are used for the same components, and an additional description thereof will be omitted.

In addition, in describing the embodiment of the present invention, the same name and the same reference numerals are used for components having the same function, and it is substantially not completely the same as in the prior art.

In addition, terms used in the embodiments of the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in an embodiment of the present invention, terms such as "comprise" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one It should be understood that it does not preclude the possibility of the presence or addition of or more other features or numbers, steps, operations, components, parts, or combinations thereof.

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

Figure 2 is a perspective view showing a lipstick case according to the present invention, Figure 3 is a cross-sectional view of the lipstick case according to the present invention.

2 and 3 , the lipstick case according to the present invention includes a container 100 and a cap 700 coupled to the upper portion of the container 100 .

Meanwhile, a male screw 200 , a female screw 300 , an anti-rotation ring 400 , a piston 500 and a stick tube 150 are provided inside the container 100 and the cap 700 .

The container 100 may be formed in a bar shape, and a space portion 110 in the form of a column having an open upper portion may be formed in the center thereof.

The space part 110 is formed in succession of two cylindrical space parts having different diameters, and the first space part 111 and the container 100 are formed in a cylindrical shape having a relatively large diameter in a portion adjacent to the opening part. A second space portion 112 having a relatively smaller diameter than the first space portion 111 may be formed in a portion adjacent to the bottom surface of the .

The space part 110 is provided with the male screw 200 inserted therein, and it is preferable to have a length that can be positioned in both the first space part 111 and the second space part 112 . In addition, the male screw 200 is preferably configured to be spaced apart from the inner circumferential surface of the container 100 by a predetermined distance.

Hereinafter, the configuration of the male screw 200 and the female screw 300 will be described with reference to FIG. 4 .

The male screw 200 may be configured in a rod shape, and a thread may be formed on an outer circumferential surface. On the other hand, at one end of the male screw 200 toward the opening of the container 100, a stop portion 211 having no thread formed on the outer circumferential surface may be formed.

A female screw 300 is screwed to the outer peripheral surface of the male screw 200 . The female screw 300 is formed as a hollow cylinder, and the female screw coupling part 310 and the female screw coupling part 310 having threads corresponding to the screw threads formed on the outer circumferential surface of the male screw 200 are formed on the inner circumferential surface. ) and a female screw fixing part 320 that is formed in a continuous manner and has an outer diameter larger than the outer diameter of the female screw coupling part 310 and is coupled to the container 100 .

On the other hand, the female screw fixing part 320 is fixedly coupled to the container 100 and configured to rotate together with the container 100 , for this purpose, the first space portion 111 and the second A fastening groove 113 into which the female screw fixing part 320 is inserted and fastened may be further formed at a point where the space part 112 is connected.

In addition, it is preferable that a plurality of slits 321 are formed in the female screw fixing part 320 , and the divided pieces 322 divided by the slits 321 are curved outward in the radial direction. In this case, the diameter of the circle connecting the ends of the curved segment 322 may be larger than the diameter of the inner circumferential surface of the second space 112 .

When the divided piece 322 is inserted and fastened into the fastening groove 113 by the above configuration, the divided piece 322 is elastically deformed inward in the radial direction, and the divided piece 322 is elastically deformed by the elastic deformation. Since it is closely coupled to the inner circumferential surface of the container 100 , the female screw 300 can rotate integrally with the container 100 .

Of course, it is obvious to a person skilled in the art that the female screw fixing part 320 can be coupled to the fastening groove 113 by an interference fit method or fastened using an adhesive or the like.

In addition, a serration 311 may be formed on the outer peripheral surface of the female screw coupling part 310 .

Meanwhile, as shown in FIG. 5 , the anti-rotation ring 400 is coupled to the outer peripheral surface of the female screw coupling part 310 . The anti-rotation ring 400 is formed in the shape of a disk, and a center hole 410 through which the stopper 210 of the male screw 200 penetrates and is coupled is formed in the center, and two circumferences constituting the diameter are formed. A protrusion 420 protruding in a direction perpendicular to the surface of the disk may be formed at the point. In addition, one or more protrusions corresponding to one valley of the serration 311 may be formed on the inner circumferential surface of the protrusion 420 .

The shape of the central hole 410 is formed in a non-circular shape, preferably a polygon such as a rectangle or a triangle. Since the male screw 200 is inserted into and coupled to the central hole 410 , it is preferable that the outer circumferential shape of the male screw 200 has a shape corresponding to the shape of the central hole 410 . That is, a screw thread is formed on the outer circumferential surface of the male screw 200 , the cross-sectional shape of which is formed in a shape corresponding to the non-circular center hole 410 , and is rotated or non-rotated together with the anti-rotation ring 400 . It is configured to maintain a rotating state.

By the above configuration, as shown in FIG. 5(b), when the container 100 is rotated in a state in which the anti-rotation ring 400 is fixed so as not to rotate, the container 100 is The fixed female screw 300 rotates together with the container 100, and at this time, the male screw 200 coupled to the anti-rotation ring 400 is also prevented from rotating, so that the male screw 200 is It moves in a straight line by screwing with the female screw 300 .

When the male screw 200 descends toward the bottom surface of the container 100, the stopper 210 of the male screw 200 is movable to a point where it meets the thread of the inner circumferential surface of the female screw 300 gk. . Meanwhile, a protrusion formed to protrude outward in a radial direction may be further provided at the end of the male screw 200 toward the bottom of the container in order to limit the amount of rise.

In addition, since the female screw 300 rotates in a state in which the anti-rotation ring 400 is fixed, the serration 311 formed on the outer peripheral surface of the female screw coupling part 310 is formed of the anti-rotation ring 400 . A rotating sound is generated while riding over the ridge formed on the protrusion.

As shown in FIG. 6 , the protruding coupling part 220 is formed to extend from the stopper 210 of the male screw 200 in the direction of the opening of the container 100 , and the protruding coupling part 220 has The piston 500 is coupled.

The piston 500 is formed in a cylindrical shape, and a male screw fastening part 510 into which the protruding coupling part 220 is inserted and fastened is provided on one side, and a lipstick may be coupled to the other side.

As shown in Figure 7 (a) and (b), the outer peripheral surface of the piston 500 is provided with a stick tube (150). The stick tube 150 may be formed in a hollow shape, and a fastening groove 151 may be formed at one end thereof. The stick tube 150 is configured such that the protrusion 420 of the anti-rotation ring 400 is inserted into the fastening groove 151 past the outer circumferential surface of the piston 500 to be fastened.

At this time, as shown in FIG. 6 , the outer circumferential surface of the stick tube 150 is relatively rotatable using the circumferential projection-groove P on the inner circumferential surface of the second space 120 of the container 100 . are combined

By the above configuration, the anti-rotation ring 400 and the stick tube 150 are configured to rotate integrally or not to rotate integrally.

That is, the container 100 and the female screw 300 are fixed to rotate together, and the stick tube 150 and the rotation prevention ring 400 are fixed to prevent rotation together. Therefore, when the container 100 is rotated while holding the stick tube 150 , the female screw 300 is rotated so that the male screw 200 screw-coupled to the female screw 300 becomes the anti-rotation ring 400 . ) is moved in a straight line along the axial direction of the container 100 in a state in which rotation is prevented.

At this time, since the piston 500 and the lipstick coupled to the piston 500 are fixed to the male screw 200 , the lipstick protrudes to the outside of the stick tube 150 by the rotation of the container 100 , or configured to be received back into the interior.

Meanwhile, as shown in FIG. 6 , both ends of the piston 140 may have a larger diameter than the central portion. By this configuration, the piston 140 is coupled to the inner circumferential surface of the stick tube 150 in a compressed state to form a contact portion S between the stick tube 150 and the piston 140 to form a lower part of the lipstick. can block the ingress of air.

Hereinafter, the configuration of the cap 700 will be described with reference to FIGS. 8 and 9 .

The cap 700 is configured to close the opening of the container 100 .

The cap 700 according to the present invention is configured to be inserted into the space of the outer cap 710 and the outer cap 710 in which an inner space portion with one side open in the center is formed in a column shape, and one side is opened in the center. It is composed of an inner cap 720 in which an inner space is formed.

The inner cap 720 and the outer cap 710 are configured such that their openings face the same direction, and the inner cap 720 is inserted into the space of the outer cap 710 and coupled thereto.

On the other hand, the inner cap 720 and the outer cap 710 are configured to be mutually movable during the process of attaching and detaching the cap 700 to the container 100 .

Specifically, the inner circumferential surface located at the open end of the outer cap 710 is inserted into and coupled to the outer circumferential surface of the open end of the container 100 . At this time, the inner peripheral surface located at the open end of the outer cap 710 and the outer peripheral surface located at the open end of the container 100 are groove-protrusions so that the outer cap 710 can be fixed to the container 100 . A fastening part configuration of may be provided.

In addition to fastening using the groove-protrusion, the outer cap 710 in an interference fit method by making the inner circumferential radius of the open end of the outer cap 710 smaller than the outer circumferential diameter of the open end of the container 100 by a predetermined length. ) and the container 100 may be configured to be coupled. In addition, of course, fastening means such as magnets and screws may be used.

In a state in which the cap 700 is coupled to the container 100, the inner circumferential surface of the open end of the inner cap 720 is in contact with the outer circumferential surface of the stick tube 150, and the inner cap 720 and the stick It is configured to prevent air from flowing between the tubes 150 .

Meanwhile, an inner cap protrusion 721 protruding radially outwardly may be formed on the outer circumferential surface of the inner cap 720 . In addition, an outer cap protrusion 711 formed to be spaced apart from the inner cap protrusion 721 along the central axis C of the cap 700 may be formed on the inner circumferential surface of the outer cap 710 . Preferably, the inner cap protrusion 721 and the outer cap protrusion 711 may be formed along the inner circumferential surface of the inner cap 720 or the outer circumferential surface of the outer cap 710 in a ring shape.

The position of the inner cap protrusion 721 may be configured to be located farther from the container 100 along the central axis C than the outer cap protrusion 711 .

Hereinafter, a process of detaching the cap 700 and the container 100 will be described with reference to FIG. 9 .

First, looking at the case of opening the container 100, when the user pulls the cap 700 in the direction of the central axis C while holding the outer peripheral surface of the container 100 and fixing it, the outer cap ( 710 is separated from the container 100 .

At this time, the inner cap 720 does not move together with the outer cap 710 , and may maintain a sealed state with the stick tube 150 . After that, when the outer cap 710 is further pulled, the outer cap protrusion 711 provided on the inner circumferential surface of the outer cap 710 is caught with the inner cap protrusion 721 provided on the outer circumferential surface of the inner cap 720, and , when the outer cap 710 is pulled a little more in this state, the inner cap 720 moves together with the outer cap 710, and the inner cap 720 is also separated from the stick tube 150, The container 100 is opened.

That is, the inner cap 720 is a stick tube even when the outer cap 710 moves in a region where the inner cap protrusion 721 does not come into contact with the outer cap protrusion 711 inside the outer cap 710. 150) and can maintain the bonding state.

Hereinafter, a process of coupling the cap 700 to the container 100 will be described. The cap 700 is coupled to the container 100 so that the stick tube 150 is accommodated in the space of the inner cap 720 . At this time, the inner circumferential surface of the open end of the inner cap 720 is sealed by first contacting the outer circumferential surface of the stick tube 150 . Then, while the inner cap 720 is fixed to the stick tube 150 , only the outer cap 710 moves and is coupled to the container 100 .

Preferably, the outer cap 710 is configured such that the upper outer circumferential surface of the inner cap 720 is in contact with the upper inner circumferential surface of the outer cap 710 immediately before the outer cap 710 is coupled to the container 100 , ) may be configured such that the inner cap 720 is pressed by the outer cap 710 in the process of being completely coupled to the container 100 to be compressed and fastened to the stick tube 150 . For this operation, the upper portion of the inner cap 720 is concave inwardly, and a groove is formed on the outer peripheral surface adjacent to the upper end, so that elastic deformation can be easily configured.

Due to the configuration of the cap 700 as described above, even when the outer cap 710 is partially opened by other objects in the user's bag, the inner cap 720 is maintained in a closed state, so that the lipstick is exposed to the outside air. There is no problem of hardening due to the inflow of

The lipstick case according to the present invention not only improves the sealing force inside the container by a double cap configuration, but also maintains a high sealing force between the piston 500 and the stick tube 150, and the stick tube 150 and the inner cap 720. It is possible to significantly improve sealing performance compared to the conventional lipstick case.

As described above, the lipstick case according to the present invention not only improves the sealing force inside the container by the double cap configuration, but also maintains a high sealing force between the piston and the stick tube, thereby greatly improving the sealing performance compared to the conventional lipstick case. can Those skilled in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof.

Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention.

100: courage
110: space part
111: first space part
112: second space part
113: fastening groove
120: second space part
140: piston
150: stick tube
151: fastening groove
200: male screw
210: stop
220: protruding coupling portion
300: female screw
310: female screw coupling part
311: Serration
320: female screw fixing part
321: slit
322: Partition
400: anti-rotation ring
410: central hall
420: protrusion
500: piston
510: male screw fastening part
700: cap
710: outer cap
711: outer cap protrusion
720: inner cap
721: inner cap protrusion
C: central axis
P Circumferential projection-groove

Claims (7)

A container having an accommodating space having an open side therein; and
In the lipstick case comprising a; cap configured to close the opening of the container,
a male screw having a screw thread formed on the outer circumferential surface and provided inside the container;
a female screw screw-coupled to the outer circumferential surface of the male screw and including a hollow tube;
an anti-rotation ring in contact with the female screw and through which one end of the male screw is coupled;
a piston coupled to one end of the male screw protruding through the anti-rotation ring; and
a hollow stick tube having an inner circumferential surface in contact with the outer circumferential surface of the piston and having one end coupled to the anti-rotation ring; includes,

The female screw is
a female screw coupling part having a thread formed on its inner peripheral surface and a serration formed on its outer peripheral surface; and
and a female screw fixing part formed continuously with the female screw coupling part and having an outer diameter larger than that of the female screw coupling part,

The female screw fixing part,
a slit disposed at its lower end;
It is disposed between the slits and divided by the slits, the ends thereof have an arcuate shape, and elastically deform in the inner direction of the female screw fixing part when the container is rotated so that the container and the female screw can be closely coupled. at least two or more divided pieces;
includes

The anti-rotation ring is
Disc-shaped body;
a central hole formed in the center of the body; and
Including; a protrusion formed extending from the body;
The inner circumferential surface of the protrusion is coupled to and in contact with the outer circumferential surface of the female screw coupling portion,

The piston is
It is formed in a cylindrical shape, and the diameter of both ends is larger than the diameter of the center, and both ends are elastically deformed inward in the radial direction and are coupled to the inner peripheral surface of the stick tube,

The cap is
an outer cap having an open inner space formed on one side and coupled to the container, the outer cap including an outer cap protrusion formed to protrude inward on an inner peripheral surface thereof; and
an inner cap inserted into the space of the outer cap and having an inner space with one open side formed in the center, coupled to the stick tube, and including an inner cap protrusion formed to protrude outwardly on an outer peripheral surface thereof;
is composed of

The inner cap protrusion and the outer cap protrusion are configured to be spaced apart by a predetermined distance in the axial direction of the cap.


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