Compact Case

Abstract

To provide a compact case which stably maintains the shape of a cosmetic filled with directly without a reserved case and has sufficient sealability.SOLUTION: Provided is a compact case for a cosmetic refill, including: a lower case, which is equipped with a bottom plate with a fixing pattern for fixing the lower part of the cosmetic on the inner bottom surface and side walls that extend upward from the periphery of the bottom plate and together with the bottom plate limit the housing space to accommodate the cosmetic; an upper case coupled to the lower case to seal the housing space from the outside; and a coupling end disposed on each of the lower case and the upper case for separably coupling the lower case and the upper case. The compact case can be filled directly with the cosmetics, reducing the processing costs of the compact case and reducing its size and weight.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a compact case, and more particularly to a compact case that can be detachably connected to a cosmetic container and refilled with compact-type cosmetics. [Background technology]

[0002] Generally, cosmetics such as foundation, cream, and shadow, which are made by impregnating a sponge or urethane foam with a cosmetic composition, are filled into a compact case, and then the compact case is placed inside the cosmetic container.

[0003] Accordingly, when the cosmetics are all used up, the empty compact case can be detached and separated from the cosmetics container, and a new compact case filled with cosmetics can be attached to the conventional cosmetics container, thereby allowing the cosmetics container to be easily refilled with new cosmetics.

[0004] Conventional compact cases for filling cosmetics are configured such that a reservoir filled with cosmetics is placed in a lower case, which is then covered with an upper case to seal it from the outside. The upper and lower cases are connected together, and the reservoir filled with cosmetics is transported and fixed to the lower case in a separate process, and the upper and lower cases are then joined together to form the compact case.

[0005] In this case, the reservoir is provided as a medium for storing the cosmetics in the storage space of the lower case when the upper case and the lower case are connected together. In particular, the reservoir is provided as a solid material that has heat resistance corresponding to the filling temperature of the cosmetics, absorbs external vibrations and shocks, and stably maintains the shape of the filled cosmetics.

[0006] However, since the reservoir serves as a medium for filling the cosmetic product and increases the weight of the compact case, it is difficult to satisfy the trend toward smaller and lighter compact cases.

[0007] In addition, the reservoir is manufactured separately from the upper and lower cases, and the compact case is manufactured through two different processes, which complicates the manufacturing process and increases costs.

[0008] Accordingly, there is an increasing need for a new compact case that can simplify the process by directly filling the cosmetic product into the lower case without a reservoir. Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been proposed to solve the above-mentioned problems, and an object of the present invention is to provide a compact case that stably maintains the shape of cosmetics directly filled without a reservoir and has sufficient sealing properties. [Means for solving the problem]

[0010] To achieve the above object, one embodiment of the present invention provides a compact case that includes a bottom plate having a fixing pattern disposed on the inner bottom surface for fixing the bottom of a cosmetic product to be stored, a lower case having side walls that extend upward from the periphery of the bottom plate and, together with the bottom plate, define a storage space for storing the cosmetic product, an upper case that is connected to the lower case to seal the storage space from the outside, and connecting ends that are disposed on the lower case and the upper case, respectively, for separably connecting the lower case and the upper case. [Effects of the Invention]

[0011] The compact case according to the exemplary embodiment of the present invention can store cosmetics directly loaded into the lower case without a reservoir by connecting the heat-resistant lower case and upper case with a connecting end that can be easily connected and separated as needed.

[0012] To prevent deformation of the lower and upper cases during the high-temperature filling process, the upper and lower cases are provided with upper and lower sealing structures that have high airtightness and sealing properties, respectively, ensuring high airtightness for the cosmetic storage space of the compact case. Furthermore, deformation-preventing ribs that can prevent thermal deformation of the side walls are provided around the periphery of the side walls, preventing a decrease in the airtightness of the storage space due to deformation of the lower case.

[0013] In particular, the cosmetics directly contained in the lower case can be stably fixed within the containing space by the fixing pattern provided on the bottom plate and the positioning fixtures provided on the inner surfaces of the side walls, thereby preventing deformation and deterioration of the contained cosmetics, thereby preventing defects of the cosmetics directly filled in the lower case.

[0014] Therefore, the weight and size of the compact case can be reduced by storing cosmetics directly in the lower case without a reservoir for storing cosmetics. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of a compact case according to an embodiment of the present invention; [Figure 2] FIG. 2 is an exploded perspective view of the compact case shown in FIG. 1. [Figure 3a] 3 is a perspective view showing the lower case of the compact case shown in FIG. 2. FIG. [Figure 3b] 3b is a perspective view showing the rear structure of the lower case shown in FIG. 3a. FIG. [Figure 4a] 3 is a perspective view showing the upper case of the compact case shown in FIG. 2. FIG. [Figure 4b] 4b is a perspective view showing the rear structure of the upper case shown in FIG. 4a. FIG. [Figure 5] 2 is a cross-sectional view of the compact case shown in FIG. 1 taken along II' direction. [Figure 6a]3b is a perspective view showing another embodiment of the lower case shown in FIG. 3a. FIG. [Figure 6b] FIG. 6b is a plan view of the lower case shown in FIG. 6a. [Figure 7] 2 is a cross-sectional view showing a rotary cylinder of the coupling end shown in FIG. 1 according to an embodiment of the present invention. [Figure 8a] 8 is a view showing a state before the rotary shaft and the rotary cylinder shown in FIG. 7 are coupled together. [Figure 8b] 8 is a view showing a state after the rotary shaft and the rotary cylinder shown in FIG. 7 are coupled together. DETAILED DESCRIPTION OF THE INVENTION

[0016] All the examples described below are illustrative to help understand the present invention, and may be modified differently from the examples described herein to be implemented in various embodiments. In addition, in the description of the present invention, if it is determined that detailed descriptions of related known functions or known components may unnecessarily obscure the gist of the present invention, such detailed descriptions will be omitted.

[0017] The accompanying drawings are not drawn to scale to facilitate understanding of the invention, and the dimensions of some components may be exaggerated. When reference numerals are used for each component, the same numerals will be used as much as possible for the same components even when they appear in different drawings.

[0018] Furthermore, in describing components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. are used to distinguish the components from other components, and the terms do not limit the nature, order, or sequence of the components.

[0019] When any component is described as being "coupled," "coupled," or "connected" to another component, it should be understood that the component may be directly coupled, coupled, or connected to the other component, but that there may also be other components "coupled," "coupled," or "connected" between the component and the other component.

[0020] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and various modified embodiments of the present invention are possible.

[0021] The terms and words used in this specification and claims should not be limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept that corresponds to the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concept of the term in order to explain his / her invention in the best way.

[0022] Furthermore, singular expressions used in this application include plural expressions unless the context clearly indicates otherwise.

[0023] The meaning of "comprising" as used in the specification is to embody certain properties, regions, integers, steps, operations, elements and / or components, and does not exclude the presence or addition of other certain properties, regions, integers, steps, operations, elements components and / or groups.

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0025] Figure 1 is a perspective view of a compact case according to an embodiment of the present invention, and Figure 2 is an exploded perspective view of the compact case shown in Figure 1. Figure 3a is a perspective view of the lower case of the compact case shown in Figure 2, and Figure 3b is a perspective view of the rear structure of the lower case shown in Figure 3a. Figure 4a is a perspective view of the upper case of the compact case shown in Figure 2, and Figure 4b is a perspective view of the rear structure of the upper case shown in Figure 4a. Figure 5 is a cross-sectional view of the compact case shown in Figure 1 taken along the I-I' direction.

[0026] 1 to 5, a compact case 500 according to one embodiment of the present invention includes a lower case 100 having a storage space RS for storing cosmetics (not shown), an upper case 200 that seals the storage space RS to prevent the cosmetics from drying out or becoming damaged, and a connecting end 300 that detachably connects the lower case 100 and the upper case 200.

[0027] In one embodiment, the lower case 100 includes a storage space RS, and cosmetics can be directly filled and stored in the storage space RS through a filling process. For example, the cosmetics can include foundation, cream, eyeshadow, and other cosmetics impregnated with a cosmetic composition in a sponge or urethane foam. However, the cosmetics are not limited thereto, and can be any variety of cosmetics as long as they can be stored in the storage space RS through a filling process.

[0028] For example, the lower case 100 may include a bottom plate 110, a side wall 120 that extends upward from the periphery of the bottom plate 110 and defines the storage space RS together with the bottom plate 110, and a lower sealing structure 130 that can be combined with the upper case to seal the storage space RS.

[0029] The base plate 110 may be a flat plate having sufficient heat resistance to the filling temperature of the cosmetic product and having appropriate strength and hardness. For example, the base plate 110 may be made of a urethane photocurable resin having sufficient heat resistance and excellent tensile properties at a filling temperature of about 80°C or higher.

[0030] In particular, a fixing pattern P with a number of regularly protruding protrusions is disposed on the inner bottom surface B1 of the bottom plate 110, thereby fixing the lower portion of the cosmetic product contained in the storage space RS. Accordingly, after the cosmetic product is filled in the storage space RS, the cosmetic product can be stably fixed inside the storage space RS even when the compact case 500 is moved or transported in various ways. In other words, by fixing the cosmetic product using the fixing pattern P, the cosmetic product can be prevented from being deformed during the movement of the compact case 500.

[0031] In this embodiment, the fixing pattern P may be provided as a checkerboard pattern protruding from within a specific pattern area set around the center of the bottom plate 110. However, this is merely an example, and it is obvious that various fixing patterns P may be provided as long as they can fix the lower part of the cosmetic product within the storage space RS.

[0032] The sidewalls 120 extend upward from the periphery of the bottom plate 110 and together with the bottom plate 110 define a storage space RS for storing cosmetics. Accordingly, the storage space RS is defined by the bottom plate 110 and the sidewalls 120 and is provided as an open space with an open top.

[0033] For example, the sidewalls 120 may be integral with the bottom plate 110 and made of the same urethane photocurable resin as the bottom plate 110. However, this is merely an example, and the sidewalls 120 may be made of a different material from the bottom plate 110.

[0034] Position stators 122 that fix the sides of the cosmetic product and prevent deformation may be provided on the inner surface of the side wall 120. The position stators 122 are arranged on the inner surface of the side wall 120 to surround the storage space RS, support the sides of the cosmetic product, and prevent displacement at each position of the sides. As a result, movement of the stored cosmetic product during movement of the compact case 500 can be prevented, minimizing deformation.

[0035] In this embodiment, the position stator 122 may include at least one fixed ring 122a that extends continuously along the inner surface of the side wall 120 and surrounds the receiving space RS.

[0036] For example, a number of fixing rings 122a may be arranged at regular intervals along the inner surface of the side wall 120. Accordingly, the sides of the cosmetic product contained in the containing space RS are supported by the multiple fixing rings 122a, thereby preventing deformation of the cosmetic product.

[0037] Alternatively, the position stator 122 may be provided with discrete fixed blocks 122b.

[0038] FIG. 6a is a perspective view showing another embodiment of the lower case shown in FIG. 3a, and FIG. 6b is a plan view of the lower case shown in FIG. 6a.

[0039] 6a and 6b, a modified lower case 200a according to another embodiment of the present invention has substantially the same configuration as the lower case 200 shown in Fig. 3a, except that the fixing ring 122a is replaced with a fixing block 122b. Accordingly, the modified lower case 200a will be described mainly with respect to the fixing block 122b.

[0040] The fixing blocks 122b may protrude from the inner surface of the side wall 120 to a predetermined thickness and extend along the height direction of the side wall 120. In this embodiment, a plurality of fixing blocks 122b are provided along the inner surface of the side wall 120 at regular intervals to surround the receiving space RS discontinuously.

[0041] Therefore, the sides of the cosmetic product filled in the storage space RS are intermittently supported by the multiple fixed blocks 122b, which can prevent the cosmetic product from shifting in position, thereby preventing the cosmetic product from deforming in the storage space RS.

[0042] The lower sealing structure 130 is fixed to the outer surface of the side wall 120 and can be coupled to an upper sealing structure 220 of the upper case 200, which will be described later. The lower sealing structure 130 and the upper sealing structure 220 are coupled together to seal the storage space RS so that it is isolated from the outside. Therefore, the cosmetics stored in the storage space RS are also sealed from the outside and can be protected from external environments such as moisture and temperature.

[0043] For example, the lower sealing structure 130 may include a leg cylinder 131 , a cover disk 132 and a lower sealing ring 133 .

[0044] The leg cylinder 131 is provided to surround the side wall 120 and spaced apart from the side wall 120. Accordingly, a space between the side wall 120 and the leg cylinder 131 is provided as a leg space LS, and the bottom plate 110 and the side wall 120 are disposed to be housed inside the leg cylinder 131.

[0045] At this time, the end of the leg cylinder 131 is configured to be located at substantially the same level as or higher than the outer bottom surface B2 of the bottom plate 110, or to protrude further downward. Accordingly, when the compact case 500 is placed on any surface, the leg cylinder 131 comes into contact with the outer bottom surface B2 first, thereby minimizing vibrations and external forces transmitted to the storage space RS containing the cosmetics.

[0046] That is, the leg cylinders 131 absorb vibrations and external forces transmitted from outside the compact case 500, thereby minimizing damage or deformation of the cosmetics contained in the containing space RS due to the external forces.

[0047] The cover disc 132 is connected to the outer surface of the side wall 120 and the leg cylinder 131, respectively, to fix the leg cylinder 131 to the side wall 120. The leg cylinder 131 is disposed to be spaced apart from the side wall 120, but can be fixed to the side wall 120 by the cover disc 132. Accordingly, the leg space LS is covered by the cover disc 132, and is formed as a space that is closed at the top and open at the bottom.

[0048] The cover disk 132 has a disk shape with a flat upper surface, and a lower sealing ring 133 is disposed on the upper surface of the cover disk 132, spaced apart from the side wall 120 by a predetermined distance to provide a lower coupling gap LG.

[0049] The lower sealing ring 133 has a predetermined radius and is provided in a ring shape surrounding the upper end of the side wall 120. Accordingly, a lower coupling gap LG provided between the lower sealing ring 133 and the side wall 120 is also formed as a space having a certain volume.

[0050] A second upper sealing ring 222 of the upper sealing structure 220 (described later) is inserted into the lower coupling gap LG by interference fit, thereby sealing the receiving space RS from the external environment.

[0051] A number of deformation suppression ribs 140 may be arranged in the leg space LS, connected to the outer surface of the side wall 120 and the inner surface of the leg cylinder 131 and spaced at regular intervals around the leg cylinder 131 .

[0052] Since the process of filling the storage space RS with cosmetics is carried out at a high temperature of 80°C or more, the shape of the bottom plate 110 and the side walls 120 may be deformed as the temperature changes. The deformation of the bottom plate 110 and the side walls 120 reduces the airtightness of the storage space RS, and the stored cosmetics may be deformed or denatured, resulting in defective cosmetics.

[0053] A large number of deformation suppression ribs 140 are arranged along the outer surface of the side wall 120 to suppress deformation of the side wall 120. The deformation suppression ribs 140 are supported by the leg cylinders 131, and deformation of the side wall 120 can be suppressed by the rigidity of the deformation suppression ribs 140 and the leg cylinders 131.

[0054] Suppressing deformation of the side walls 120 also suppresses deformation of the bottom plate 110, which is integrally connected to the side walls 120. As a result, deformation of the side walls 120 and the bottom plate 110 is suppressed, and the airtightness and tightness of the storage space RS can be improved.

[0055] A number of friction blocks 150 are arranged on the outer surface of the leg cylinder 131 to increase the frictional force between the lower case 100 and a cosmetic container (not shown) that comes into contact with the lower case 100. Since the compact case 500 is ultimately placed in an external cosmetic container, it is required that the compact case 500 can be stably fixed inside the cosmetic container.

[0056] Accordingly, a number of friction blocks 150 that can increase the frictional force with an external wall that comes into contact with the lower case 100, such as a cosmetic container, can be disposed on the outer surface of the lower case 100 located at the bottom of the compact case 500, thereby suppressing the fluidity of the lower case 100 inside the cosmetic container. As a result, the storage safety of the compact case 500 inside the cosmetic container can be improved.

[0057] As an example, the upper case 200 may include a top plate 210 that covers the lower case 100 and an upper sealing structure 220 that extends downward from the top plate 210 and is coupled to the lower sealing structure 130 to seal the receiving space RS.

[0058] The top plate 210 has a shape corresponding to the planar shape of the lower case 100 and is fastened with high precision to the upper part of the lower case 100 to seal the receiving space RS from the outside. For example, the top plate 210, like the bottom plate 110 and the sidewalls 120, may be made of a urethane photocurable resin having high hardness, strength, and excellent heat resistance.

[0059] The upper sealing structure 220 is fixed to surround the periphery of the top plate 210 and may include a first upper sealing ring 221, a second upper sealing ring 222, and a third upper sealing ring 223 extending downward.

[0060] For example, the upper sealing structure 220 may include a third upper sealing ring 223 that is integrally arranged along the periphery of the top plate 210 and accommodates the top plate 210 therein, a second upper sealing ring 222 that is connected to the lower part of the top plate 210 inside the third upper sealing ring 223, and a first upper sealing ring 221 that is spaced apart from each other at a predetermined interval.

[0061] The first upper sealing ring 221 protrudes downward from the top plate 210 and extends from the center of the top plate in a circular shape having a first radius along the inner surface of the side wall 120. Accordingly, the first upper sealing ring 221 contacts the inner surface of the side wall 120 and can function as a primary sealing part for the receiving space RS.

[0062] The second upper sealing ring 222 has a second radius larger than the first radius and protrudes downward from the top plate 210 to have an annular shape spaced apart from the first upper sealing ring 221. The second upper sealing ring 222 is inserted into the lower coupling gap LG by interference fit and coupled thereto. Accordingly, the second upper sealing ring 222 supplements the airtightness of the first upper sealing ring 221 and can function as a secondary sealing part for the receiving space RS.

[0063] The third upper sealing ring 223 has a third radius larger than the second radius and protrudes downward from the top plate 210 to have an annular shape spaced apart from the second upper sealing ring 222. The third upper sealing ring 223 contacts the outer surface of the lower sealing ring 133 to supplement the airtightness of the second upper sealing ring 222 and can function as a tertiary sealing part for the receiving space RS.

[0064] The first to third upper sealing rings 221, 222, and 223 are inserted so as to contact the inner wall of the side wall 120, the lower joining gap LG, and the outer surface of the lower sealing ring 133, respectively. Therefore, the side wall 120 is joined by an interference fit to the inner upper gap UG1, which is the space between the first and second upper sealing rings 221 and 222, and the lower sealing ring 133 is joined by an interference fit to the outer upper gap UG2, which is the space between the second and third upper sealing rings 222 and 223.

[0065] Accordingly, the lower sealing ring 133 provided in the lower case 100 is connected to the upper sealing structure 220 by a press fit, and the first to third upper sealing rings 221, 222, and 223 provided in the upper case are connected to the lower sealing structure 130 by a press fit, so that the airtightness of the connection between the lower case 100 and the upper case 200 can be maintained at a sufficiently high level.

[0066] Accordingly, the storage space RS can be triple-sealed from the outside by combining the upper sealing structure 220 and the lower sealing structure 130. Accordingly, even if the upper and lower cases are deformed due to high temperatures during the filling process when cosmetics are directly filled into the lower case 100, the triple-sealed structure using the first to third upper sealing rings 221, 222, and 223 can prevent defects such as deformation or alteration of the composition of the cosmetics stored in the storage space RS.

[0067] In particular, the lower sealing ring 133 and the first to third upper sealing rings 221, 222, and 223 are configured to have different hardnesses, thereby further improving the sealing force for the receiving space RS. When the lower sealing ring 133 and the first to third upper sealing rings 221, 222, and 223 having different hardnesses are combined, the relatively weaker sealing ring is disposed to surround the contact area with the relatively harder sealing ring, thereby blocking a gap between the receiving space RS and the outside. Accordingly, one of the lower sealing ring 133 and the first to third upper sealing rings 221, 222, and 223 may be made of a material with high hardness and the other may be made of a material with low hardness, thereby further improving the sealing performance for the receiving space RS depending on the characteristics of the materials.

[0068] In one embodiment, the connecting end 300 can connect the lower case 100 and the upper case 200 separably.

[0069] For example, the coupling end 300 may include a coupling base 310 fixed to the leg cylinder 131 and having a rotation shaft 312 , and a rotation cylinder 320 fixed to the top plate 210 and detachably coupled to the rotation shaft 312 .

[0070] The coupling base 310 may be composed of a shaft fixing portion 311 protruding from the outer surface of the leg cylinder 131 and a rotation shaft 312 fixed to the shaft fixing portion 311 .

[0071] The rotary cylinder 320 has a detachable portion CO that is partially open along the length of the rotary shaft 312, and the rotary shaft 312 can be selectively coupled to the rotary cylinder 320 through the detachable portion CO.

[0072] Fig. 7 is a cross-sectional view showing the rotary cylinder of the coupling end shown in Fig. 1 according to one embodiment of the present invention. Fig. 8a is a view showing a state before the rotary shaft and the rotary cylinder shown in Fig. 7 are coupled, and Fig. 8b is a view showing a state after the rotary shaft and the rotary cylinder shown in Fig. 7 are coupled.

[0073] 7, 8a and 8b, the rotating cylinder 320 may include a connecting portion 321 extending from the side of the third upper sealing ring 223 to correspond to the rotating shaft 312, a first cylinder portion 322 connected to the connecting portion 321 and having a coupling space S1 therein, a second cylinder portion 323 connected to the first cylinder portion 323 and having an entrance space S2 therein, and a protrusion OP protruding from the inner surface of the boundary between the first cylinder portion 322 and the second cylinder portion 323.

[0074] The connecting part 321 extends from the third upper sealing ring 223 to the outside to cover the rotating shaft 312 and is provided in the form of a flat plate with a width corresponding to the length of the rotating shaft 312, and the first and second cylinder parts 322, 323 are provided in the form of cylinders that have a length corresponding to the width of the flat plate of the connecting part 321 and are integrally connected to the connecting part 321.

[0075] In this embodiment, the first and second cylinder portions 322 and 323 are integrally connected to the connecting portion 321 and are provided in the shape of a cylinder having an internal space for accommodating the rotation shaft 312 .

[0076] The first cylinder portion 322 is integrally connected to the connecting portion 321 and may have a coupling space S1 that accommodates the rotation shaft 312 and couples the rotation cylinder 320 to the coupling base 310. The coupling space S1 is provided to have a size larger than the rotation shaft 312, so that the rotation cylinder 320 can perform rotational movement around the rotation shaft 312.

[0077] The second cylinder portion 323 is integrally connected to the first cylinder portion 322 and may include an entry space S2 continuously connected to the detachable portion CO. The entry space S2 is configured to communicate with the detachable portion CO of the rotating cylinder 320, so that the rotating shaft 312 can enter the entry space S2 from the outside through the detachable portion CO.

[0078] The protrusion OP protrudes from the inner surface of the boundary between the first cylinder portion 322 and the second cylinder portion 323 toward the center of the first cylinder portion 322 and the second cylinder portion 323, and is provided in a ring shape surrounding the coupling space S1 and the entrance space S2.

[0079] Accordingly, the size of a boundary space S3, which is a boundary region between the binding space S1 and the entrance space S2, is reduced by the protrusion OP so that it becomes smaller than the binding space S1 and the entrance space S2.

[0080] That is, a support protrusion OP is arranged in the boundary region between the first and second cylinder portions 322, 323 to support the rotating shaft 312 coupled to the coupling space S1 and prevent the rotating shaft 312 from escaping into the entry space S2.

[0081] In this embodiment, the first cylinder portion 322 and the second cylinder portion 323 are made of elastic material and can be stretched within an elastic range by an external force. Accordingly, when an external force is applied to the rotating cylinder 320, the boundary space S3 is expanded by the elastic stretching of the first cylinder portion 322 and the second cylinder portion 323, and the rotating shaft 312 selectively moves between the first cylinder portion 322 and the second cylinder portion 323 through the expanded boundary space S3.

[0082] When the external force applied to the rotating cylinder 320 is removed, the first cylinder portion 322 and the second cylinder portion 323 are restored to their original shapes, and the size of the boundary space S3 is also restored to its original size, becoming smaller than the connecting space S1 and the entry space S2.

[0083] Accordingly, the rotating shaft 312 arranged in the coupling space S1 inside the first cylinder portion 322 is supported by the protruding portion OP and is prevented from escaping into the entry space S2 inside the second cylinder portion 323. Furthermore, the movement of the rotating shaft 312 arranged in the entry space S2 is prevented by the protruding portion OP and is prevented from moving into the coupling space S1 unless an external force is applied.

[0084] As shown in Figures 8a and 8b, the rotating cylinder 320 and the rotating shaft 312 can be detachably coupled as follows.

[0085] First, the second cylinder portion 323 of the rotary cylinder 320 is inserted into the rotary shaft 312 to position the rotary shaft 312 in the entry space S2. When the rotary cylinder 320 and the rotary shaft 312 are coupled together, the rotary shaft 312 is positioned in the entry space S2 through the detachable portion CO. At this time, the rotary shaft 312 is positioned in the entry space S2 so as to come into contact with the protrusion OP, and the protrusion OP prevents the rotary shaft 312 from entering the coupling space S1.

[0086] Next, an external force for coupling is applied to the rotary cylinder 320 to forcibly insert the rotary shaft 312 into the coupling space S1. When the connecting portion 321 is pressed downward, the protrusions OP of the first and second cylinder portions 322 and 323 also extend within the elastic deformation range, expanding the size of the boundary space S3. Accordingly, the rotary shaft 312 can move from the entry space S2 into the coupling space S1.

[0087] When the rotating shaft 312 is inserted into the coupling space S1 through the expanded boundary space S3, the external force applied to the rotating cylinder 320 is removed, causing the first and second cylinder portions 322 and 323 to return to their original shapes. Accordingly, the protruding portion OP also returns to its original position, and the coupling space S1 is also reduced to its original size. Accordingly, the rotating shaft 312 disposed in the coupling space S1 is supported by the protruding portion OP, preventing it from slipping off into the entry space S2.

[0088] When the rotating cylinder 320 and the rotating shaft 312 are to be separated, an external force is applied to the rotating cylinder 320 so that the first and second cylinder portions 322 and 323 are extended and the protrusion portion OP is expanded, thereby expanding the boundary space S3. Accordingly, the rotating shaft 312 disposed in the coupling space S1 is released into the entry space S2 through the expanded boundary space S3 and can be discharged from the entry space S2 through the detachable portion CO.

[0089] At this time, the rotation shaft 312 moves between the entrance space S2 and the coupling space S1 along the surface of the protrusion OP, so that the surface is arranged in a rounded shape to minimize the frictional force during the movement.

[0090] Accordingly, the lower case 100 and the upper case 200 can be detachably coupled by selectively coupling the coupling base 310 and the rotating cylinder 320. In the conventional filling process, if the lower case 100 and the upper case 200 cannot be separated, it is difficult to directly fill the lower case 100 with cosmetics due to the process characteristics. Due to such process limitations, conventional compact cases are formed by sequentially performing a first process of filling the reservoir with cosmetics and a second process of placing the reservoir filled with cosmetics into the lower case.

[0091] However, in the compact case 500 according to the exemplary embodiment of the present invention, the lower case 100 and the upper case 200 can be easily connected or separated using the connecting end 300. Therefore, the compact case 500 can be easily manufactured by directly filling the separated lower case 100 with cosmetics and then reconnecting the upper case 200 to the lower case 100 filled with cosmetics.

[0092] Accordingly, the manufacturing process of the compact case 500 can be simplified, and the manufacturing cost can be reduced.

[0093] The compact case according to the embodiment of the present invention can store cosmetics directly loaded into the lower case without a reservoir by connecting the lower case 100 and the upper case 200, which have high heat resistance, at a connecting end that can be easily connected and disconnected as needed.

[0094] In order to prevent deformation of the lower and upper cases due to the high-temperature filling process, upper and lower sealing structures 130, 220 with high airtightness and sealing properties are arranged in the upper and lower cases, respectively, thereby ensuring high airtightness for the cosmetic storage space RS of the compact case 500.

[0095] Furthermore, by arranging deformation suppression ribs 140 around the periphery of side wall 120 to suppress thermal deformation of the side wall, it is possible to prevent a decrease in the airtightness of housing space RS due to deformation of lower case 100.

[0096] In particular, the cosmetics directly accommodated in the lower case 100 can be stably fixed within the accommodation space RS by the fixing pattern P provided on the bottom plate 110 and the positioning stators 122 provided on the inner surfaces of the side walls 120. Accordingly, deformation and deterioration of the accommodated cosmetics can be prevented, thereby preventing defects of the cosmetics directly loaded into the lower case.

[0097] Accordingly, the weight and size of the compact case can be reduced by storing cosmetics directly in the lower case 100 without a reservoir for storing cosmetics.

[0098] Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, it will be understood that those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. [Explanation of symbols]

[0099] 100: Lower case 110: Bottom plate 120: Side wall 130: Lower sealed structure 131: Leg cylinder 132: Cover disc 133: Lower sealing ring 140: Deformation suppression rib 150: Friction block 200: Upper case 220: Upper closed structure 221: First upper sealing ring 222: Second upper sealing ring 223: Third upper sealing ring 300: Joining end 310: Bonding base 320: Rotating cylinder 500: Compact case

Claims

1. a lower case including a bottom plate having a fixing pattern disposed on the inner bottom surface for fixing the lower portion of the cosmetic product to be stored, and side walls extending upward from the periphery of the bottom plate and defining a storage space for storing the cosmetic product together with the bottom plate; an upper case coupled to the lower case and sealing the storage space from the outside; and connecting ends disposed on the lower case and the upper case, respectively, for separably connecting the lower case and the upper case; the lower case further includes a leg cylinder surrounding the side wall to be spaced apart from the side wall; a cover disk connected to the leg cylinder and an outer surface of the side wall to fix the leg cylinder to the side wall and to cover a leg space between the side wall and the leg cylinder; and a lower sealing structure including a lower sealing ring spaced apart from the side wall on an upper surface of the cover disk, The lower case further includes a plurality of deformation suppression ribs arranged to extend radially in the leg space and connected to and supported by the outer surfaces of the side walls and the inner surfaces of the leg cylinders, the deformation suppression ribs being arranged at regular intervals along the circumferential direction of the leg cylinders and configured to suppress deformation of the side walls.

2. The compact case of claim 1 , wherein the fixed pattern includes a checkerboard shape arranged in a predetermined area centered on the center of the bottom plate.

3. The compact case according to claim 1 , further comprising a position fixator disposed on an inner surface of the side wall so as to surround the storage space, for fixing the position of the cosmetic product within the storage space and preventing deformation of the cosmetic product.

4. 4. The compact case of claim 3, wherein the position stator includes at least one fixed ring extending continuously along the inner surface and surrounding the receiving space.

5. 4. The compact case according to claim 3, wherein the position stator includes a number of fixing blocks that are discontinuously arranged along the inner surface and that discontinuously surround the storage space.

6. 2. The compact case of claim 1, wherein the end of the leg cylinder is flush with the outer bottom surface of the bottom plate or protrudes downwardly.

7. 2. The compact case according to claim 1, wherein the lower case further comprises a plurality of friction blocks disposed on the outer surface of the leg cylinder to increase friction with the contacting outer wall and fix the position of the lower case.

8. A lower case comprising a bottom plate having a fixing pattern arranged on the inner bottom surface for fixing the lower part of the cosmetic product to be stored, and side walls extending upward from the periphery of the bottom plate and defining a storage space for storing the cosmetic product together with the bottom plate; an upper case coupled to the lower case and sealing the storage space from the outside; and connecting ends disposed on the lower case and the upper case, respectively, for separably connecting the lower case and the upper case; the lower case further includes a leg cylinder surrounding the side wall to be spaced apart from the side wall; a cover disk connected to the leg cylinder and an outer surface of the side wall to fix the leg cylinder to the side wall and to cover a leg space between the side wall and the leg cylinder; and a lower sealing structure including a lower sealing ring spaced apart from the side wall on an upper surface of the cover disk, The upper case includes: a top plate covering the lower case; and a first upper sealing ring protruding downward from the top plate and extending in an annular shape with a first radius along the inner surface of the side wall; a second upper sealing ring protruding downward from the top plate to have a second radius larger than the first radius and spaced apart from the first upper sealing ring, and inserted into the lower coupling gap; and a third upper sealing ring having a third radius larger than the second radius, spaced apart from the second upper sealing ring, fixed to surround the periphery of the top plate, and extending downward to contact the outer surface of the lower sealing ring.

9. 9. The compact case of claim 8, wherein an end of the side wall is inserted into an inner upper gap provided between the first and second upper sealing rings, and the lower sealing ring is inserted into an outer upper gap provided between the second and third upper sealing rings, thereby doubly isolating the storage space from the outside.

10. The compact case of claim 8 , wherein the first upper sealing ring, the second upper sealing ring, and the third upper sealing ring have a hardness different from that of the lower sealing ring.

11. 9. The compact case of claim 8, wherein the coupling end includes a coupling base fixed to the leg cylinder and having a rotation shaft, and a rotation cylinder fixed to the third upper sealing ring and detachably coupled to the rotation shaft.

12. The rotating cylinder is a coupling portion extending outward from the third upper sealing ring to correspond to the rotation axis; a first cylinder portion connected to the connecting portion to provide a coupling space for accommodating the rotary shaft therein; a second cylinder portion connected to the first cylinder portion, accommodating the rotary shaft therein, and providing an entrance space communicating with the coupling space; and The compact case of claim 11, further comprising a protrusion protruding from an inner surface of the boundary between the first cylinder portion and the second cylinder portion to reduce the size of the boundary space, which is the boundary region between the coupling space and the entry space, so that it is smaller than the coupling space and the entry space.

13. The compact case according to claim 12, wherein the rotary shaft accommodated in the coupling space and disposed in the first cylinder portion is supported by the protrusion to prevent it from escaping into the entry space.

14. 13. The compact case of claim 12, wherein the first cylinder portion and the second cylinder portion are made of an elastic material, and the boundary space is expanded by elastic extension of the first cylinder portion and the second cylinder portion due to an external force, and the rotation shaft selectively moves between the first cylinder portion and the second cylinder portion through the expanded boundary space.

15. The compact case of claim 12, wherein the end of the protrusion has a rounded shape.

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