Cosmetic containers

Abstract

To provide a cosmetic container capable of engaging with a cosmetic application tool, where increase in material to be used is minimized while enabling cosmetic material remaining on a bottom of the container to be used to the end, and increase in the number of components is also prevented.SOLUTION: A cosmetic container 2 capable of engaging with a cosmetic application tool 3 comprises: a cylindrical side wall 11 to be an outer wall; and a bottom 12 that, together with the side wall 11, stores liquid cosmetic material. The bottom 12 includes: a ring-shaped bottom surface 13 extending inward from a lower end side inner peripheral surface of the side wall 11; and a recess 14 sinking downward from the center of the ring-shaped bottom surface 13. The part of the side wall 11 under the ring-shaped bottom surface 13 is a leg 112 of the container. The side wall 11 and the bottom 12 are formed integrally.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to Cosmetic containers Regarding. [Background technology]

[0002] In a typical cylindrical cosmetic container with a bottom, the tip of an applicator such as a brush or elastomer is usually set to a length that barely touches the bottom of the container when the screw is closed. Therefore, when there is little content left, particularly if the content has poor fluidity, the remaining content xC accumulates near the edge of the bottom as shown in Figure 1, and even if the applicator xA is inserted into the container X with the screw open, the applicator xA does not reach the content xC sufficiently, so the content cannot be used to the end.

[0003] Therefore, in order to use up the contents to the last drop, Patent Document 1 proposes a configuration in which the peripheral region y92 of the bottom y9 of the container Y other than the central portion y91 is made thicker, as shown in Figure 2, so that the shape of the bottom y9 forms a mortar-like, conical depression facing inward.

[0004] In addition, Patent Document 2 proposes that, in order to use up all the cosmetic liquid remaining at the bottom of the container, the lower part of the side 93 of the storage section z90 that contains the cosmetic liquid be constructed with a bellows z94 and a tail plug z95, making the storage section z90 contractible in the vertical direction, as shown in Figures 3(a) and 3(b). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3109941 [Patent Document 2] Utility Model Registration No. 3012485 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the technology of Patent Document 1, in order to form the peripheral region y92 of the bottom 9 of the container Y to be thick, a large amount of material such as glass or resin is used to form the container Y. In addition, molding by blow molding or the like is difficult, and the manufacturing process requires complicated steps.

[0007] On the other hand, the shape of Patent Document 2 requires a cylindrical outer body z96 to protect the outside of the bellows portion z93 of the contractible storage portion z90, which increases the number of parts required for the purpose of using up the entire container Z of a cosmetic tool having an applicator.

[0008] In view of the above circumstances, the present invention aims to provide a cosmetic container that can be engaged with a cosmetic applicator, which allows the cosmetic remaining at the bottom of the container to be used to the last drop, while minimizing the increase in materials used and preventing an increase in the number of parts. [Means for solving the problem]

[0009] In order to solve the above problems, in one aspect of the present invention, A cosmetic container engageable with a cosmetic applicator, The cosmetic container comprises: A cylindrical side wall that serves as an outer wall; and a bottom portion that, together with the side wall, contains a liquid cosmetic material, The bottom portion has a ring-shaped bottom surface extending inward from an inner peripheral surface of a lower end of the side wall, and a recess recessed downward from a center of the ring-shaped bottom surface, The side wall has a leg portion of the container below the ring-shaped bottom surface, The sidewall and the bottom are integrally formed. To provide a cosmetic container. Effect of the Invention

[0010] According to one aspect, in a cosmetic container that can be engaged with a cosmetic applicator, it is possible to use all of the cosmetic remaining at the bottom of the container, while minimizing the increase in materials used and preventing an increase in the number of parts. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a cross-sectional view of a cosmetic applicator container according to a typical prior art example 1. [Diagram 2] FIG. 4 is a cross-sectional view of a cosmetic applicator container according to Conventional Example 2. [Diagram 3] FIG. 11 is a cross-sectional view of a cosmetic application container according to Conventional Example 3. [Figure 4] 1 is an overall cross-sectional view of a cosmetic application container according to a first embodiment of the present invention. [Diagram 5] 1 is a cross-sectional view of a cosmetic container and a cosmetic applicator according to a first embodiment. [Figure 6] FIG. 1 is a side view of a cosmetic container and a cosmetic applicator according to a first embodiment. [Figure 7] FIG. 2 is an explanatory diagram of a wiper member according to the first embodiment. [Figure 8] FIG. 2 is a cross-sectional perspective view of the inside near the bottom of the cosmetic container of the present invention. [Figure 9] 4A to 4C are diagrams illustrating the swinging of the cosmetic applicator relative to the cosmetic container of the present invention. [Figure 10] FIG. 2 is a diagram illustrating contact between the squeeze part and the cosmetic applicator according to the first embodiment of the present invention. [Figure 11] 3 is a manufacturing flow of a cosmetic container according to the first embodiment of the present invention. [Figure 12] FIG. 6 is an explanatory view of a squeezing unit according to a second embodiment of the present invention. [Figure 13] 6 is a manufacturing flow chart of a cosmetic container according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following drawings, the same components are denoted by the same reference numerals, and duplicated explanations may be omitted.

[0013] The present invention relates to a cosmetic container engageable with a cosmetic applicator and a method for making the cosmetic container.

[0014] The contents contained in the cosmetic container of the present invention are liquid cosmetics (for example, eye cosmetic liquids such as mascara) to be applied via an applicator.

[0015] <Overall composition> First, the overall configuration of the cosmetic application container of the present invention will be described with reference to Figures 4 and 5. Figure 4 is a cross-sectional view of the cosmetic application container 1 in the engaged state in the first embodiment of the present invention.

[0016] A cosmetic application container 1 according to the present invention comprises a cosmetic container 2 and a cosmetic applicator 3.

[0017] The cosmetic container 2 is a mascara container that is filled (contains) with a cosmetic M such as mascara (mascara liquid). The cosmetic M shown in Fig. 4 is not limited to mascara (mascara liquid), but may be a cosmetic for the eyes that can be used for multiple purposes, such as an eyelash growth agent, a mascara base, an eyelash coating agent, a coating agent for eyelash extensions, an eyeliner liquid, and a cosmetic composition that can be used as both a mascara and an eyeliner. Furthermore, by changing the shape of the applicator, the cosmetic may be a liquid cosmetic that is applied via another applicator, such as a lipstick cosmetic, a partial skin cosmetic, or nail polish.

[0018] As shown in FIG. 4, when the cosmetic container 2 and the cosmetic applicator 3 are engaged, the applicator 35 provided at the tip of the cosmetic applicator 3 is immersed in the cosmetic M in the cosmetic container 2.

[0019] Fig. 5 is a cross-sectional view of the cosmetic container 2 and the cosmetic applicator 3 according to the first embodiment. Fig. 6 is a side view of the cosmetic container 2 and the cosmetic applicator 3 according to the first embodiment. Figs. 5 and 6 are views showing the cosmetic container 2 and the cosmetic applicator 3, respectively, in the disengaged state of Fig. 4.

[0020] 4 to 6, in this embodiment, the cosmetic container 2 is made up of two parts: a container body 10 and a wiper member 20. The container body 10 has a side wall 11, a bottom 12, a shoulder portion 15, and a mouth portion 16. The wiper member 20 has a tube portion 21 (see FIG. 7), an upper end flange 22 (see FIG. 7), and a squeezing portion 23.

[0021] The cosmetic applicator 3 also has a peripheral wall 31, a cover wall 33, a shaft portion 34, and an applicator 35.

[0022] In the container body 10 of the cosmetic container 2, the side wall 11 is a cylindrical wall and serves as the outer wall of the container body 10.

[0023] The bottom 12, together with the side wall 11, contains the cosmetic material M. The bottom 12 has a double bottom structure composed of a ring-shaped bottom surface 13 that extends inward from the inner peripheral surface of the lower end side of the side wall 11, and a recess 14 that is recessed downward from the center of the ring-shaped bottom surface 13.

[0024] The recess 14 is composed of a hanging peripheral wall 141 that hangs down from the inner edge of the ring-shaped bottom surface 13, and a central bottom surface 142 that is located in the radial center of the bottom portion 12 and is the lowest surface.

[0025] As shown in Fig. 4, when the cosmetic container 2 and the cosmetic applicator 3 are in an engaged state, the tip of the applicator 35 of the cosmetic applicator 3 is located in the recess 14 below the ring-shaped bottom surface 13. In the engaged state as shown in Fig. 4, a predetermined clearance C is provided at the central bottom surface 142 of the recess 14 of the applicator 35.

[0026] In the side wall 11 of the container body 10, the ring-shaped bottom surface 13 defines a storage side wall 111 that stores the cosmetic M, and the portion below the ring-shaped bottom surface 13 defines a leg portion 112 of the cosmetic container 2. The lower end side of the leg portion 112 defines the bottom of the cosmetic container, but as shown in Fig. 4, an opening 143 may be formed in the center while leaving the peripheral portion of the bottom. Alternatively, the opening 143 may not be formed, making the bottom flat.

[0027] Here, the lower end of the recess 14 of the bottom 12 is located on the same plane as or slightly above the lower ends of the legs 112 of the side wall 11. This allows the legs 112 to maintain a self-supporting state when the cosmetic application container 1 is in a state in which it is engaged with the cosmetic applicator 3 as shown in Figure 4, or when the cosmetic container 2 is on its own as shown in Figure 5.

[0028] In addition, leg portion 112 of side wall 11 is configured to be spaced apart from hanging peripheral wall 141 of recess 14. Therefore, compared to the configuration shown in Fig. 2, it is possible to suppress an increase in the resin material used to make bottom 12 into a double bottom.

[0029] Furthermore, the leg 112 of the side wall 11 may be configured with a surface having a plurality of holes when viewed from the outside in order to further reduce the amount of resin used, as long as the leg 112 can maintain its self-supporting state. For example, Fig. 6 and Fig. 8 show an example in which the leg 112 of the side wall 11 is configured with a vertical lattice-like surface having a plurality of vertically elongated holes 113 regularly spaced in the vertical direction.

[0030] In addition, other structures of the surface having multiple holes to reduce the amount of resin in the leg portion 112 may be used, such as a vertical lattice structure with regularly-spaced horizontal holes, a diagonal lattice structure (lattice structure), a structure with arranged squares, a structure with arranged triangles, a honeycomb structure with arranged hexagons, a chainmail structure, or a polka-dot structure with holes of various shapes such as circles, polygons, and hearts.

[0031] 5, shoulder portion 15 is an upper surface having a central hole O1 formed in the center of the upper surface so that applicator 35 can be inserted, and has a diameter tapering from the upper end of sidewall 11. In this example, shoulder portion 15 extends horizontally at a substantially right angle to sidewall 11, but shoulder portion 15 may be inclined so that the inner edge of shoulder portion 15 is located above the upper end of sidewall 11 as long as shoulder portion 15 is configured to tapered from the upper end of sidewall 11.

[0032] In the container body 10, a portion surrounded by the storage side wall 111, the bottom portion 12, and the shoulder portion 15 forms a storage portion α.

[0033] The mouth portion 16 is an upright tubular portion standing upward from the inner edge portion of the shoulder portion 15. A screw projection 17 is formed on the outer circumferential surface of the mouth portion 16.

[0034] Here, as shown in Fig. 6, when the thread length, which is the range in the vertical direction in which the screw projection 17 of the mouth portion 16 is formed, is taken as l, it is preferable that the depth L of the recess 14 (the height of the hanging peripheral wall 141) is L = C + l. Note that C indicates the clearance between the tip of the applicator 35 and the upper surface of the central bottom surface 142 of the recess 14 in the engaged state shown in Fig. 4.

[0035] In the cosmetic container 2 according to the first embodiment, the container body 10 including the side wall 11, the bottom 12, the shoulder portion 15, and the mouth portion 16, except for the wiper member 20, is integrally formed from the same resin. There are no particular limitations on the resin used for the container body 10 as long as it can be handled by a 3D printer, and preferred resins include polyester (PET, PBT), styrene (PS, AS, ABS), nitrile (PAN), polycarbonate (PC), polylactic acid (PLA), etc., and among these, polyamide (PA) or polypropylene (PP) is more preferred.

[0036] When the cosmetic applicator 3 is removed from the cosmetic container 2, the squeezing part 23 comes into contact with the applicator 35 to squeeze out excess mascara from the applicator 35. The squeezing part 23 makes it possible to appropriately adjust the amount of mascara contained in the applicator 35. Details of the wiper member 20 will be described in detail with reference to FIG. 7.

[0037] The wiper member 20 is formed of an elastic material, such as a flexible rubber or elastomer, such as NBR (acrylonitrile butadiene rubber) or LLDPE (linear low density polyethylene), which is soft when it comes into contact with the applicator 35.

[0038] Meanwhile, in the cosmetic applicator 3, the peripheral wall 31 is a tubular portion that can engage with the mouth portion 16 of the container body 10, and a screw projection 32 is formed on the inner circumferential surface near the lower end of the peripheral wall 31. The screw projection 32 formed on the inner circumferential surface of the peripheral wall 31 below the lid wall 33 is engageable with the screw projection 17 formed on the outer circumferential surface of the mouth portion 16.

[0039] The peripheral wall 31 has a lid wall 33 as a boundary, and the lower side forms an engaging tube 311 that engages with the mouth 16 of the cosmetic container 2, and the upper side forms an extending tube 312 that does not engage with the cosmetic container 2 and is extended to make it easier for the user to grip when applying makeup.

[0040] The lid wall 33 is a wall surface that is connected to the inner periphery of the peripheral wall 31 and extends in a direction substantially perpendicular to the axial direction of the peripheral wall 31, and seals the cosmetic container 2. Note that the lid wall 33 serves as a lid portion that closes the upper end of the cosmetic container 2 to prevent the cosmetic M, which is the content, from coming into contact with the lid wall 33 and leaking out when the cosmetic application container 1 is turned downward in the engaged state as shown in Fig. 4.

[0041] In the cosmetic applicator 3, the peripheral wall 31 on which the screw projections 32 are formed and the cover wall 33 function as a cap portion β.

[0042] One end of the shaft portion 34 is attached to the underside of the cover wall 33, and the other end has an applicator 35 attached thereto.

[0043] Applicator 35 is attached to the other end of shaft 34 and is an application member (also called an applicator or applicator body) used to apply impregnated cosmetic M (e.g., mascara liquid) to the application target, such as the user's eyelashes.

[0044] 5 and 6, applicator 35 has tip region 351, application region 352, and rear end region 355. Tip region 351 is a substantially hemispherical member with the tip as an apex, which gradually becomes thicker from the tip toward application region 352.

[0045] In application region 352, a plurality of bristle projections 354 are provided so as to rise radially from the circumferential surface of application shaft 353. For example, when applying mascara liquid to eyelashes with applicator 35, each bristle projection 354 combs eyelashes from the root to the tip while applying mascara liquid, thereby lifting eyelashes from the root and curling the entire eyelashes, thereby adding volume.

[0046] The rear end region 355 is a connection portion with the shaft portion 324 and gradually tapers from the application region 352 towards the shaft 324 .

[0047] If the maximum diameter of the application area 352, i.e., the total length of the length of the two bristle projections 354 extending in opposite directions and the shaft diameter of the application shaft 353, is d, then the inner diameter D (see FIG. 5) of the recess 14 in the bottom 12 of the cosmetic container 2 is preferably in the range of D=dmm to (d+0.5)mm. By setting the dimensions in this manner, the applicator 35 can enter the inside of the recess 14 when in the engaged state as shown in FIG.

[0048] In the cosmetic applicator 3 of the present invention, the peripheral wall 31, the cover wall 33, the shaft portion 34, and the applicator 35 are integrally formed from the same resin. There are no particular limitations on the resin used for the cosmetic applicator 3 as long as it can be handled by a 3D printer, and preferred resins include polyester (PET, PBT), styrene (PS, AS, ABS), nitrile (PAN), polycarbonate (PC), polylactic acid (PLA), etc., and among these, polyamide (PA) or polypropylene (PP) is more preferred.

[0049] (Wiper member of the first embodiment) 7A and 7B are explanatory diagrams of the wiper member according to the first embodiment, in which (a) is an enlarged cross-sectional view of the mouth 16 of the cosmetic container 2 and the wiper member 20 and its surroundings, and (b) is a see-through perspective view of the wiper member 20.

[0050] As described above, the wiper member 20 according to the first embodiment has the tubular portion 21, the upper end flange 22, and the squeezing portion .

[0051] The squeeze unit 23 has four hanging legs 231 to 234 and a floating annular wiper 235.

[0052] The four hanging legs 231 to 234 extend downward from the lower end of the tube portion 21. The four hanging legs 231 to 234 are provided spaced apart from one another in the circumferential direction of the tube portion 21.

[0053] The floating annular wiper 235 is a floating annular wiper connected to the lower ends of the hanging legs 231-234. The floating annular wiper 235 has a downwardly facing truncated cone shape with the lower end side smaller than the upper end when viewed from the side, and has a truncated cone cylindrical (tapered cylindrical) shape with only side surfaces without upper and lower surfaces. The diameter of the inner peripheral edge LE on the lower end side of the floating annular wiper 235 is smaller than the inner diameter of the mouth portion 16 and the inner diameter of the tube portion 21 fitted into the mouth portion 16, and the inner peripheral edge LE is located inside the lower end of the inner peripheral surface IC of the tube portion 21.

[0054] (Swinging of the cosmetic applicator and the shape of the bottom of the cosmetic container) Next, the movement of the cosmetic applicator 3 relative to the cosmetic container 2 of the present invention will be described with reference to Figs.

[0055] Fig. 8 is a cross-sectional perspective view of the inside near the bottom 12 of the cosmetic container 2 of the present invention. Fig. 9 is a diagram illustrating the swing or rotation of the cosmetic applicator 3 relative to the cosmetic container 2 of the present invention.

[0056] 9, when the thread engagement between the peripheral wall 31 of the cosmetic applicator 3 and the mouth 16 of the cosmetic container 2 is released and the lower end of the peripheral wall 31 covers part of the mouth 16, the cosmetic applicator 3 is swingable relative to the cosmetic container 2, supported by the portion of the shaft 34 that contacts the squeezing part 23. The swinging or turning movement includes not only a reciprocating movement like a swing, but also a rotational movement of the tip side of the applicator 35 along the inner circumferential surface of the main container.

[0057] As described above, the bottom 12 of the cosmetic container 2 has a double bottom structure consisting of an outer ring-shaped bottom surface 13 and a recess 14 recessed downwardly at the center of the ring-shaped bottom surface 13, and the recess 14 is composed of a hanging peripheral wall 141 hanging down from the inner edge of the ring-shaped bottom surface 13 and a central bottom surface 142 located in the radial center and forming the lowest surface.

[0058] Here, as shown in Figures 5, 8, and 9, the upper outer ring-shaped bottom surface 13 of the double bottom is a curved surface in the shape of a perforated sphere with a concave center. Because the ring-shaped bottom surface 13 is a curved surface in the shape of a perforated sphere with a concave center, when the cosmetic applicator 3 swings as shown in Figure 9, the tip of the applicator 35 can come into contact with the ring-shaped bottom surface 13, as shown by arrow a1 in Figure 8.

[0059] In detail, when the threaded engagement between peripheral wall 31 and mouth portion 16 is released and the lower end of peripheral wall 31 covers part of mouth portion 16, the distance from the fulcrum F of oscillation to the tip of applicator 35 is taken as SR. It is preferable that the radius of curvature of the partially perforated spherical curved surface of ring-shaped bottom surface 13 be SR±1 mm.

[0060] With this structure, even if the remaining amount of cosmetic M contained in the cosmetic container 2 becomes small, the applicator 35 can contact the outside of the ring-shaped bottom surface 13 by swinging, so that the cosmetic M can be scooped up to the last drop.

[0061] Furthermore, in order to realize such scooping by shaking, in the cosmetic container 2, as shown in FIG. 4, when the maximum distance inside the bottle, i.e., the inner diameter of the cylindrical storage side wall 111, is A and the height from the top surface of the central bottom surface 142 inside the bottle to the bottom surface of the shoulder portion 15 is H, it is preferable that the relationship be "H>A×2", i.e., the storage section α has a vertically elongated bottle shape.

[0062] Figure 9 describes the vertical oscillation of cosmetic applicator 3, but cosmetic applicator 3 can tilt (rotate) so that the tip of applicator 35 rotates (pivots) horizontally along the outer edge of ring-shaped bottom surface 13 or the inner surface of storage side wall 111, as shown by arrow a2 in Figure 8.

[0063] (The movement of the training team) Next, the movement of the squeezing part will be described using Figures 7, 9, and 10. Figure 10 is a diagram illustrating contact between the squeezing part 23 and the cosmetic applicator 3 according to the first embodiment of the present invention. In Figure 10, (a) is a diagram showing a state in which the shaft part 34 of the cosmetic applicator 3 contacts the floating annular wiper 235, and (b) is a diagram showing a state in which the applicator 35 of the cosmetic applicator contacts the floating annular wiper 235.

[0064] As shown in FIG. 7(b), the hanging legs 231-234 of the squeezing part 23 extend from the lower end of the tubular part 21, and are formed to have the same thickness as the tubular part 21 in the radial direction and to be thinner in the circumferential direction, and are further spaced apart from each other in the circumferential direction.

[0065] Furthermore, since the wiper member 20 is made of an elastic material, the hanging legs 231 to 234 of the squeezing part 23 can bend when a force equal to or greater than a predetermined force is applied thereto.

[0066] When it is desired to apply more cosmetic to the applicator 35, the threaded engagement between the peripheral wall 31 of the cosmetic applicator 3 and the mouth 16 of the cosmetic container 2 is released and the lower end of the peripheral wall 31 covers part of the mouth 16, as shown in Figures 9 and 10(a). Then, the cosmetic applicator 3 is swung relative to the cosmetic container 2.

[0067] Here, when the thread engagement between peripheral wall 31 and mouth portion 16 is released and the lower end of peripheral wall 31 covers a part of mouth portion 16, in addition to contact between squeezing part 23 and shaft portion 34, the inner circumferential surface near the lower end of peripheral wall 31 comes into contact with the outer upper end of mouth portion 16 when moved significantly, so the swing angle θ1 is limited. In this case, the purpose of the swing is to scoop up the cosmetic near bottom portion 12, so the swing action point of cosmetic applicator 3 is applicator 35, which is located near bottom portion 12 and is closer to the tip side than shaft portion 34 that contacts squeezing part 23. Therefore, no strong force is applied to squeezing part 23 from shaft portion 34 near fulcrum F, and hanging legs 231-234 do not bend.

[0068] This allows the cosmetic applicator 3 shown in FIG. 9 to be stably swung, and the cosmetic M remaining on the ring-shaped bottom surface 13 to be used to the last.

[0069] On the other hand, when it is desired to reduce the amount of cosmetic applied to applicator 35, applicator 35 is brought into contact with floating annular wiper 235 of squeezing unit 23 with peripheral wall 31 of cosmetic applicator 3 separated from mouth portion 16 as shown in Figure 10(b). In this case, each of multiple hanging legs 231-234 of squeezing unit 23 bends, and floating annular wiper 235 tilts according to the direction of contact.

[0070] Here, when the applicator 35 is brought into contact with the squeezing part 23 with the peripheral wall 31 separated from the mouth portion 16, if it is moved significantly, another part of the applicator 35 or the shaft part 34 will come into contact with the upper inner end of the mouth portion 16, so that the angle of inclination θ2 when adjusting the amount of application is limited, but compared to Figure 10(a), angle θ2 is larger than angle θ1.

[0071] In this way, due to the angle of entry of the cosmetic applicator 3 and the position of the point of action, the load on the squeezing part 23 is greater in the state of FIG. 10(b) than in the state of FIG. 10(a).

[0072] If the hanging legs 231-234 of the squeezing part 23 are set so as to bend when a force exceeding the state shown in Figure 10(a) is applied, the floating annular wiper 235 will tilt when the applicator 35 is brought into contact with the squeezing part 23 to adjust the amount of application, thereby reducing the burden on the applicator 35.

[0073] In this way, the hanging legs 231-234 of the squeezing part 23 bend only when a force equal to or greater than a predetermined value is applied, so that when the cosmetic applicator 3 is swung to apply cosmetic, as in Figure 10(a), they do not bend but function as a support, and when the cosmetic applicator is squeezed to adjust the amount of cosmetic applied, as in Figure 10(b), they bend to reduce the burden on the applicator 35.

[0074] (Manufacturing method) The shape of the bottom 12 having a stepped double bottom structure and the leg portion 112 having a plurality of holes 113 in the container body 10 of the cosmetic container 2 according to the first embodiment of the present invention cannot be molded by general injection molding because they cannot be removed from the mold. Therefore, a method for manufacturing the container body 10 of the present invention without using a mold will be described.

[0075] The container body 10 of the present invention is integrally formed from resin using a 3D printer. For example, the 3D printer used is a three-dimensional resin modeling device using photocurable resin with Carbon Digital Light Synthesis (registered trademark) (Carbon DLS: Digital Light Synthesis) technology. In Carbon Digital Light Synthesis, programmable liquid resin is used to model resin by using digital light projection.

[0076] The 3D printer is connected to an information processing device, which is an input device for inputting shape data, so that information can be exchanged via wire or wirelessly.

[0077] FIG. 11 shows a manufacturing flow of the cosmetic container according to the first embodiment of the present invention.

[0078] In step S1, the shape of the container body 10 is input to a 3D printer via an information processing device.

[0079] In step S2, the container body 10 is integrally formed from resin using a 3D printer (resin molding process).

[0080] Here, in the 3D printer, resin modeling proceeds in a direction such that the resin regions are continuous. As described above, the recess 14 in the bottom 12 of the container body 10 is shaped to hang down from the ring-shaped bottom surface 13, and the lower end of the recess 14 is located in space, so when molding the container body 10 in S2, molding is performed in order from the mouth 16 side at the upper end.

[0081] In detail, from top to bottom as shown in Figure 5, thermosetting resin is hardened and laminated layer by layer in the following order: mouth 16, screw projection 17, shoulder 15, storage side wall 111 of side wall 11, ring-shaped bottom surface 13, hanging peripheral wall 141 which becomes recess 14, central bottom surface 142, and leg portion 112, and container body 10 is resin-molded.

[0082] In step S3, the wiper member 20 is formed. The wiper member 20 has the tubular portion 21 that can be fitted into the mouth portion 16, the upper end flange 22, and the squeezing portion 23 that is composed of the hanging legs 231-234 and the floating annular wiper 235, as described above.

[0083] The wiper member 20 may be molded by any molding method, for example, by injection molding using a general mold or compression molding. Alternatively, the wiper member 20 may also be molded by a 3D printer using the same or different resin as the container body 10.

[0084] In step S4, the tubular portion 21 of the wiper member 20 is fitted into the inside of the opening portion 16. This completes the assembly of the cosmetic container 2.

[0085] In the present invention, in the container body 10, the side wall 11 and the bottom 12 having a step are formed integrally as shown in S2, so that an increase in the number of parts required to use up all the liquid remaining at the bottom of the container can be prevented.

[0086] In addition, in container body 10, the outside of hanging peripheral wall 141 of recess 14 and the inside of leg portion 112 are hollow, so that it is possible to use up all the liquid remaining at the container bottom while minimizing the increase in the amount of resin material used. Furthermore, by forming the wall of leg portion 112 with a surface having a plurality of holes, the amount of resin used can be further reduced.

[0087] With such a configuration and manufacturing method, the cosmetic application container of the present invention makes it possible to use all of the cosmetic remaining at the bottom of the container, while minimizing the increase in materials used and preventing an increase in the number of parts.

[0088] In this embodiment, since the container body 10 and the wiper member 20 in the cosmetic container 2 are formed separately, materials suitable for the respective applications can be selected for S2 and S4.

[0089] <Second embodiment> In the above first embodiment, a configuration was described in which the container body 10 and the wiper member 20 in the cosmetic container 2 are formed separately and then assembled, but by forming the squeezing portion integrally with the container body 10, it is not necessary to provide the wiper member as a separate body.

[0090] The cosmetic container 100 according to the second embodiment has a squeeze part 18 in addition to the components of the container body 10, such as the mouth part 16, the shoulder part 15, the side wall 11, and the double-bottom bottom part 12. Only the differences from the first embodiment will be described below.

[0091] Fig. 12 is an explanatory diagram of the squeeze part 18 according to the second embodiment of the present invention. In Fig. 7, (a) is an enlarged cross-sectional view of the squeeze part 18 and its periphery of the cosmetic container 100, and (b) is a see-through perspective view of the squeeze part 18.

[0092] Like squeezing unit 23, squeezing unit 18 has four hanging legs 181 to 184 and a floating annular wiper 185.

[0093] The four hanging legs 181 to 184 extend downward from the lower end of the inner edge of the mouth 16 A. The four hanging legs 181 to 184 are provided spaced apart from one another in the circumferential direction of the mouth 16 A.

[0094] The floating annular wiper 185 is a floating annular wiper connected to the lower ends of the hanging legs 181-184. The floating annular wiper 185 has a downwardly facing truncated cone shape in a side view, with the lower end side being smaller than the upper end, and has a truncated cone cylindrical (tapered cylindrical) shape with only side surfaces and no upper or lower surfaces. The diameter of the inner peripheral edge LE8 on the lower end side of the floating annular wiper 185 is smaller than the inner diameter of the mouth portion 16A, and the inner peripheral edge LE8 is located inside the lower end of the inner peripheral surface IC of the inner edge IE that defines the central hole O2 of the mouth portion 16A.

[0095] In this embodiment as well, the hanging legs 181-184 of the squeezing part 18 bend only when a force equal to or greater than a predetermined force is applied. As a result, when the cosmetic applicator 3 is swung to apply cosmetic, as shown in Fig. 10(a), they do not bend but function as a support. On the other hand, when the cosmetic applicator 3 is squeezed to adjust the amount of cosmetic applied, as shown in Fig. 10(b), they bend and the floating annular wiper 185 tilts according to the contact direction, thereby reducing the burden on the applicator 35.

[0096] (Manufacturing method of the second embodiment) In the cosmetic container 100 according to the second embodiment of the present invention, the bottom 12 having a stepped double bottom structure, the leg portion 112 having a plurality of holes 113, and the shape of the squeeze portion 18 cannot be molded by general injection molding because they cannot be removed from the mold. Therefore, the cosmetic container 100 according to the present embodiment is integrally formed from resin using a 3D printer.

[0097] FIG. 13 shows a manufacturing flow of the cosmetic container 100 according to the second embodiment of the present invention.

[0098] In step S21, the shape of the cosmetic container 100 is input to the 3D printer via an information processing device. At this time, information on the shape of the squeeze part 18 is also input.

[0099] In step S22, the cosmetic container 100 is integrally formed from resin using a 3D printer (resin molding process).

[0100] In the cosmetic container 100 of this embodiment, similarly to the first embodiment, the recess 14 of the bottom 12 is shaped to hang down from the ring-shaped bottom surface 13, and the squeezing portion 18 is shaped to hang down from the lower end of the mouth portion 16A, so that when molding the cosmetic container 100 in S2, it is molded sequentially from the upper end side of the mouth portion 16A.

[0101] 13, the resin is hardened and laminated layer by layer by a 3D printer in the following order: mouth 16A, screw projection 17, shoulder 15, hanging legs 181-184 of squeezing part 18, floating annular wiper 185, storage side wall 111 of side wall 11, ring-shaped bottom surface 13, hanging peripheral wall 141 which becomes recess 14, central bottom surface 142, and legs 112, to resin mold cosmetic container 100. This completes the molding of cosmetic container 100.

[0102] 12(b), the hanging legs 181-184 of the squeeze unit 18 are disposed below the inner peripheral edge IE of the mouth 16A to avoid the central hole O2, so that a conductive space S is provided in the vicinity of the mouth 16. This conductive space S makes it easy to discharge uncured material from inside the container when the cosmetic container 100 is formed by a 3D printer.

[0103] Furthermore, in this embodiment, since the squeezing part 18 is integral with the other components of the cosmetic container 100 and is made of the same resin, in order to ensure the flexibility of the hanging legs, it is more preferable to make the hanging legs 181-184 thinner and narrower than when the squeezing part 23 is made of an elastic material.

[0104] In this embodiment, the cosmetic container 100, including the squeeze unit 18, is formed by three-dimensional molding all at once, so that the number of parts of the cosmetic container 100 can be minimized to one.

[0105] With such a configuration and manufacturing method, the cosmetic application container of the present invention makes it possible to use all of the cosmetic remaining at the bottom of the container, while minimizing the increase in materials used and preventing an increase in the number of parts.

[0106] Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes are possible within the scope of the gist of the embodiments of the present invention described in the claims. In any of the embodiments, a wide range of cosmetics can be applied, from those with high fluidity to those with low fluidity. [Explanation of symbols]

[0107] 1 Cosmetic application container 10 Container body 11 Side wall 12 Bottom 13 Ring-shaped bottom 14 Recess 141 Hanging peripheral wall 142 Bottom of center 15 Shoulder 16,16A Mouth 17 Screw protrusion 18 Training Club 181,182,183,184 Hanging leg 185 Floating Annular Wiper 2. Cosmetic containers 20 Wiper parts 21 Cylinder part 22 Upper flange 23 Training Club 231, 232, 233, 234 Hanging leg 235 Floating Annular Wiper 3. Cosmetic applicators 31 Peripheral wall 32 Screw protrusion 33 Lid wall 34 Shaft 35 Applicator 100 Cosmetic containers LE Lower edge of floating annular wiper LE8 Lower edge of floating annular wiper Inner edge of IC barrel IE Inner edge of mouth

Claims

1. A cosmetic container engageable with a cosmetic applicator, A cylindrical side wall that serves as an outer wall; and a bottom portion that, together with the side wall, contains a liquid cosmetic material, The bottom portion has a ring-shaped bottom surface extending inward from an inner peripheral surface of a lower end of the side wall, and a recess recessed downward from a center of the ring-shaped bottom surface, The side wall has a leg portion of the container below the ring-shaped bottom surface, The side wall and the bottom are integrally formed, The cosmetic applicator comprises: The surrounding wall and a cover wall that closes an inner peripheral surface of the peripheral wall; a shaft portion having one end attached to the lower surface of the cover wall; an applicator attached to the other end of the shaft portion and having an application region and a tip region made of a substantially hemispherical member; The cosmetic container comprises: a shoulder having a central portion extending from an upper end of the side wall and narrowing in diameter; a mouth portion rising from an inner edge portion of the shoulder portion and having a screw projection formed on an outer peripheral surface; and a squeeze unit that adjusts the amount of liquid cosmetic material contained in the applicator. a threaded protrusion engageable with the threaded protrusion of the mouth portion is formed on an inner circumferential surface of the peripheral wall of the cosmetic applicator near a lower end thereof, when the threaded engagement between the peripheral wall and the mouth portion is released and a lower end of the peripheral wall covers a part of the mouth portion, the cosmetic applicator is swingable within the cosmetic container using a contact portion between the shaft portion and the squeezing portion as support; The ring-shaped bottom surface is a curved surface having a partially perforated spherical shape with a center side recessed downward so that the substantially hemispherical member comes into contact with the ring-shaped bottom surface when the cosmetic applicator is swung. Cosmetic container.

2. When the peripheral wall and the mouth portion are in threaded engagement with each other, the tip region of the applicator is located within the recess below the ring-shaped bottom surface, The coating area is located outside the recess. The cosmetic container according to claim 1.

3. The lower end of the recess is located on the same plane as or slightly above the lower end of the leg. The cosmetic container according to claim 1 or 2.

4. The squeezing unit includes: A plurality of hanging legs that are divided in the circumferential direction of the mouth and extend downward; a floating annular wiper connected to the lower ends of the plurality of hanging legs; The floating annular wiper has a truncated cone shape with a lower end side smaller than an upper end side, and a diameter of an inner peripheral edge portion on the lower end side is smaller than an inner diameter of the mouth portion. The cosmetic container according to any one of claims 1 to 3.

5. when the threaded engagement between the peripheral wall and the mouth portion is released and the lower end of the peripheral wall covers a portion of the mouth portion, and the cosmetic applicator is swung to apply the cosmetic to the applicator, when the shaft portion of the cosmetic applicator comes into contact with the floating annular wiper of the squeezing portion, the floating annular wiper maintains its state and supports the swing, and the lower side in the vicinity of the contact position between the floating annular wiper and the shaft portion becomes a fulcrum for the swing, When the applicator of the cosmetic applicator is brought into contact with the floating annular wiper of the squeezing part in order to adjust the amount of application while the peripheral wall is separated from the mouth part, each of the hanging legs of the plurality of hanging legs is bent, and the floating annular wiper is tilted according to the contact direction. The cosmetic container according to claim 4.

6. The leg portion is configured with a surface having a plurality of holes when viewed from the outside. The cosmetic container according to any one of claims 1 to 5.

Images