Cosmetic container and squeezing member for said cosmetic container

Abstract

To provide a cosmetic container in which a squeezing member hardly comes off a container body, and to provide a squeezing member for the cosmetic container.SOLUTION: A cosmetic container includes: a container body having a storage part for storing cosmetics and a tubular neck part provided at an edge part of the storage part; an elastic squeezing member attached inside the tubular neck part; and a lid member having a shaft part extending in the storage part through the tubular neck part and an application body provided at the tip of the shaft part and immersed in the cosmetics stored in the storage part. The squeezing member includes a tubular part that abuts against the inner surface of the tubular neck part and a flange formed projected in a flange shape so as to engage with an opening end of the tubular neck part in the upper part on the outer peripheral surface of the tubular part. A diameter reduced part is provided on the outer peripheral surface of the tubular part of the squeezing member, which is composed of a tapered surface whose diameter is gradually and constantly reduced toward the flange so that the diameter is smallest at a connection part of the flange, thereby creating a gap between the inner surface in the vicinity of the opening end of the tubular neck part and the outer peripheral surface of the tubular part of the squeezing member.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cosmetic container and a squeezing member for the cosmetic container, and more particularly to a cosmetic container having a lid member equipped with an applicator that applies cosmetics contained in the container body, and a squeezing member for the cosmetic container. [Background technology]

[0002] A cosmetic container containing a viscous liquid cosmetic such as mascara comprises a container body containing the liquid cosmetic and a lid member detachable from the container body. More specifically, the container body comprises a bottomed cylindrical container section containing the liquid cosmetic and a cylindrical neck section at the opening side. The lid section comprises an axis section that enters the container body through the cylindrical neck section when the lid section is attached to the cylindrical neck section, and an applicator section provided at the tip of the axis section and immersed in the liquid cosmetic in the container body. Furthermore, a squeezing member is fitted inside the cylindrical neck section. The squeezing member is entirely made of an elastic material and includes a squeezing piece that squeezes the applicator section. The squeezing piece squeezes the applicator section as the applicator section passes through the cylindrical neck section, scraping off excess liquid cosmetic adhering to the applicator section, and adjusting the amount of liquid cosmetic adhering to the applicator section to an appropriate amount. The squeezing member also functions as an inner plug, ensuring airtightness of the container when the plug is closed.

[0003] An example of a similar container is a liquid application container shown in Patent Document 1. Such containers are used not only for storing viscous liquid cosmetics but also for storing powder cosmetics. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-44643 A Summary of the Invention [Problem to be solved by the invention]

[0005] The squeezing member in such a cosmetic container is passed by the applicator each time it is used, squeezing out excess liquid cosmetic, so the liquid cosmetic tends to remain on the inner surface of the squeezing member. In particular, viscous liquid cosmetic that forms a film, such as mascara, often contains film-forming components and volatile components. As a result, as the applicator and shaft are repeatedly pulled out and pushed into the container body, the liquid cosmetic may repeatedly adhere to and solidify on the lid member, shaft, etc., and accumulate.

[0006] In such cases, since the squeezing member is elastic as a whole, when the lid member and shaft with the solidified and accumulated liquid cosmetic material are pushed against the squeezing member, the squeezing member may be significantly deformed and may be dragged into the container body by the pushing action of the lid member and shaft, causing it to fall off. If the squeezing member falls into the container body, it is difficult for the user to remove it from the container body through the cylindrical neck, and there is a problem that it can no longer be used as a cosmetic container. In addition, if the squeezing member is left in the container body in a fallen state, even if the lid member is attached, it cannot be tightly sealed, and the liquid cosmetic material will dry out.

[0007] An object of the present invention is to provide a cosmetics container in which a squeezing member is unlikely to come off from the container body, and a squeezing member for the cosmetics container. [Means for solving the problem]

[0008] In order to achieve the above object, the cosmetic container of the present invention comprises a container body having a storage section for storing a cosmetic and a cylindrical neck portion provided at an end of the storage section, a squeezing member having elasticity and attached to the inside of the cylindrical neck portion, and a lid member removably attached to the outside of the cylindrical neck portion, the lid member comprising a shaft portion extending through the cylindrical neck portion into the storage section when the lid member is attached to the cylindrical neck portion, and an applicator body provided at the tip of the shaft portion and immersed in the cosmetic stored in the storage section, wherein the squeezing member comprises a cylindrical portion that abuts against the inner surface of the cylindrical neck portion, and a flange formed on an upper portion of the outer circumferential surface of the cylindrical portion in a brim-like protruding manner so as to be engageable with an open end of the cylindrical neck portion, The ironing member has an outer circumferential surface on the cylindrical portion thereof that is provided with a tapered portion having a tapered surface that gradually reduces in diameter toward the flange so that the flange connection portion has a minimum diameter. The present invention is characterized in that a gap is provided between the inner surface of the cylindrical neck portion near the open end and the outer circumferential surface of the cylindrical portion of the squeezing member.

[0009] In the cosmetic container of the present invention, the gap is formed by forming the cylindrical portion when the squeezing member is elastically deformed. To fill the gap It is characterized in that it is a region that is permitted to bulge in the direction of radial expansion.

[0010] In addition, in the cosmetic container of the present invention, the reduced diameter portion of the squeezing member is formed in an annular shape around the circumferential direction of the tubular portion, so that the gap is formed in an annular shape.

[0011] The cosmetic container of the present invention is further characterized by having a region that allows the flange to bulge in a direction in which the diameter of the flange increases when the squeezing member is elastically deformed.

[0012] In the cosmetic container of the present invention, the inner surface of the cylindrical neck portion is provided with an enlarged diameter portion whose diameter increases near the open end of the cylindrical neck portion.

[0013] The present invention also provides a squeezing member, which is an elastic squeezing member that is attached to the inside of the cylindrical neck of a cosmetic container having: a container body including a storage section for storing a cosmetic and a cylindrical neck provided at an end of the storage section; and a lid member that is detachably attached to the outside of the cylindrical neck, the lid member including a shaft portion that extends into the storage section through the cylindrical neck when the lid member is attached to the cylindrical neck, and an applicator body that is provided at the tip of the shaft portion and is immersed in the cosmetic stored in the storage section. The squeezing member has a cylindrical portion that abuts against the inner surface of the cylindrical neck, and a flange that protrudes in a brim-like shape and is formed on an upper portion of an outer circumferential surface of the cylindrical portion so as to be engageable with an open end of the cylindrical neck, and the outer circumferential surface of the cylindrical portion of the squeezing member is provided with a reduced diameter portion in which the diameter is reduced near a connection portion of the flange to form a gap between the inner surface near the open end of the cylindrical neck and the outer circumferential surface of the cylindrical portion of the squeezing member. The reduced diameter portion is configured with a tapered surface that gradually reduces in diameter toward the flange so that the connecting portion of the flange has a minimum diameter. It is characterized by: Effect of the Invention

[0014] According to the present invention, it is possible to provide a cosmetics container in which a squeezing member is unlikely to come off from the container body, and a squeezing member for the cosmetics container. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a cross-sectional view showing a schematic diagram of a cosmetic container according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a partially enlarged view of the cosmetic container shown in FIG. [Diagram 3] 1A and 1B are diagrams illustrating a squeezing member according to an embodiment of the present invention, in which FIG. 1A is a half-sectional view of the squeezing member, and FIG. 1B is a plan view of the squeezing member. [Figure 4] 1A and 1B are exploded views of a cosmetic container according to an embodiment of the present invention, where FIG. 1A is an exploded cross-sectional view of a main unit, and FIG. 1B is an exploded cross-sectional view of an application unit. [Diagram 5] 1A and 1B are diagrams illustrating a cosmetic container according to an embodiment of the present invention, in which (a) is an enlarged cross-sectional view of a portion of the cosmetic container before the squeezing member is elastically deformed, and (b) is an enlarged cross-sectional view of a portion of the cosmetic container after the squeezing member is elastically deformed. [Figure 6] 1A and 1B are diagrams illustrating a cosmetic container according to a comparative example (prior art), where (a) is a partially enlarged cross-sectional view at the start of capping, and (b) is a partially enlarged cross-sectional view just before capping is completed. [Figure 7] 1 is a table showing the results of an experiment for confirming the effects of the present invention. [Figure 8] 1A and 1B are diagrams illustrating modified examples of the present invention, where FIG. 1A is a partially enlarged cross-sectional view of a cosmetic container according to modified example 1, and FIG. 1B is a partially enlarged cross-sectional view of a cosmetic container according to modified example 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] <Embodiment> Hereinafter, a cosmetic container and a squeezing member used therein according to an embodiment of the present invention will be described with reference to the drawings.

[0017] [Cosmetic containers and straining parts] A cosmetics container 1 and a squeezing member 3 according to the present embodiment will be described with reference to Figures 1 to 4. Figure 1 is a cross-sectional view showing a schematic diagram of a cosmetics container according to an embodiment of the present invention, Figure 2 is an enlarged view of a portion of the cosmetics container shown in Figure 1, and Figure 3 is a diagram explaining the squeezing member according to an embodiment of the present invention, where (a) is a half-side cross-sectional view of the squeezing member, (b) is a plan view of the squeezing member, and Figure 4 is an exploded view of the cosmetics container according to an embodiment of the present invention, where (a) is an exploded cross-sectional view of the main unit, and (b) is an exploded cross-sectional view of the application unit.

[0018] As shown in FIG. 1, the cosmetic container 1 of this embodiment is a cosmetic container for storing cosmetics such as mascara, and comprises a container body 2 for storing the cosmetics, a squeezing member 3, a lid member 4 attached to the container body 2, a shaft portion 5, a wiper member 6, and an applicator body 7.

[0019] 1 and 4(a), the container body 2 has an elongated cylindrical shape with a bottom, and includes a storage section 21 for storing a cosmetic material therein, and a tubular neck section 22 provided at one end of the storage section 21. A lid member 4 is removably attached to the tubular neck section 22.

[0020] The container body 2 is made of a hard resin material (first resin material), and is molded, for example, by blow molding. Examples of hard materials include thermoplastic resins such as PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate), and nylon, and glass, but are not limited to these.

[0021] Cosmetics, for example, viscous liquid cosmetics such as mascara, are stored in the storage section 21. The cosmetics used here are highly viscous liquids that contain volatile components and film-forming components.

[0022] 1 and 4(a), the tubular neck 22 has a cylindrical shape whose diameter is reduced relative to the container 21 via a step 24. The outer circumferential surface 22a of the tubular neck 22 is provided with a threaded portion 23 for attaching the cap member 4. A wiping member 3 is fitted inside the tubular neck 22, serving as an inner plug to prevent the cosmetic from volatilizing.

[0023] As shown in Fig. 1 and Fig. 4(b), the lid member 4 is attached to the cylindrical neck portion 22. The lid member 4 has a topped cylindrical shape, and an inner peripheral wall 42 is provided with a thread groove 43 that is screwed into the threaded portion 23 of the cylindrical neck portion 22. The lid member 4 also has a shaft portion 5 extending from its internal space, and an applicator 7 provided at the tip portion of the shaft portion 5. A base end portion 51 of the shaft portion 5 is fixed to the inner peripheral wall 42 and the top surface 41 of the lid member 4.

[0024] The cover member 4 is made of a hard resin material (first resin material) and is formed by blow molding, for example. Examples of hard materials include thermoplastic resins such as PE, PP, PET, and nylon, but are not limited to these.

[0025] 1 and 4(b), applicator body 7 is configured to be immersed in the cosmetic material in storage section 21 and to be able to apply the cosmetic material. Applicator body 7 includes core material 71 and applicator part 72 provided around the core material. Applicator part 72 has a function of being able to apply the cosmetic material, like a writing brush, sponge, brush, tip, etc.

[0026] The combined length of shaft 5 and applicator 72, for example, is such that when lid member 4 is attached to cylindrical neck 22, the tip of applicator 72 approaches the inner bottom surface of storage portion 21. When lid member 4 is attached to cylindrical neck 22, shaft 5 extends into storage portion 21 through cylindrical neck 22, and applicator 72 is immersed in the cosmetic material inside storage portion 21.

[0027] The shaft portion 5 is molded from a hard resin material (first resin material). Examples of hard materials include thermoplastic resins such as PE, PP, PET, and nylon, but are not limited to these.

[0028] As shown in Fig. 1 and Fig. 4(b), the shaft portion 5 is formed with an engagement portion 53 for fixing the wiper member 6. The wiper member 6 includes a cylindrical portion 61 and a wiper portion 62 formed with an inclined surface that is gradually enlarged in diameter from the lower end side of the cylindrical portion 61. The outer diameter of the wiper portion 62 is set to be equal to or smaller than the inner diameter of the cylindrical portion 31 of the squeezing member 3. As a result, when the applicator 7 is inserted into the container body 2 and the lid member 4 is attached to the cylindrical neck portion 22, the wiper portion 62 can scrape off the cosmetic adhering to the inner circumferential surface 31d of the cylindrical portion 31 of the squeezing member 3 and push the scraped off cosmetic back into the storage portion 21.

[0029] As shown in FIG. 3, the ironing member 3 fitted into the inside of the cylindrical neck portion 22 of the container body 2 is a molded body including a cylindrical portion 31 having an outer diameter that abuts against the inner surface 22b of the cylindrical neck portion 22, a flange 32, a raised portion 33, and an ironing piece 35 protruding from the inner surface 31d of the cylindrical portion 31.

[0030] The squeezing member 3 is made of a soft resin material (second resin material). Examples of the soft material include, but are not limited to, elastomers such as NBR (nitrile rubber), thermoplastic polyurethane, and thermoplastic elastomer, soft PE, soft PP, silicone rubber, and EVA resin (ethylene-vinyl acetate copolymer resin).

[0031] The cylindrical portion 31 has an upper end 31a disposed on the side of the open end 25 of the cylindrical neck 22, and a lower end 31b located opposite the upper end 31a. The length between the upper end 31a and the lower end 31b is longer than the cylindrical neck 22, and the lower end 31b is set to protrude toward the bottom surface of the storage portion 21 beyond the step portion 24 located at the lower part of the cylindrical neck 22.

[0032] The upper end 31a of the cylindrical portion 31 is provided with a flange 32 that protrudes in a brim-like shape. The flange 32 has an outer diameter larger than the inner diameter of the open end 25, which is the tip of the cylindrical neck 22. The flange 32 engages with the open end 25 of the cylindrical neck 22, and prevents the ironing member 3 from falling off into the housing portion 21 after being fitted into the cylindrical neck 22. The outer diameter of the flange 32 is set to be equal to or smaller than the outer diameter of the cylindrical neck 22. The outer surface of the flange 32 is not covered by another member, but is exposed when the cover member 4 is not attached to the cylindrical neck 22.

[0033] The top surface of the flange 32 facing the top surface 41 of the lid member 4 is a sealing surface 32a for tightly contacting the lid member 2 and / or the shaft portion 5 to seal the inside of the container body 2. The sealing surface 32a is formed as a gently sloping surface that gradually reduces in diameter from the outer periphery side of the flange 32 toward the inner periphery surface 31d of the cylindrical portion 31. As a result, the flange 32 is configured to gradually become thicker from its inside toward the outer periphery.

[0034] On the upper end 31a side of inner circumferential surface 31d, there is provided inclined surface 31a1 which gradually increases in diameter from the bottom to the top end.

[0035] The outer peripheral surface 31c of the tubular portion 31 is provided with a raised portion 33 at a position between the upper end portion 31a and the lower end portion 31b and close to the lower end portion 31b. The raised portion 33 is provided in an annular shape in the circumferential direction of the tubular portion 31. The raised portion 33 is provided at a position corresponding to the stepped portion 24 that exists between the accommodation portion 21 and the tubular neck portion 22 when the tubular portion 31 is fitted into the tubular neck portion 22. The raised portion 33 engages with the stepped portion 24, thereby making it difficult for the squeezing member 3 to be pulled out upward from the tubular neck portion 22.

[0036] The cylindrical portion 31 has an inclined surface 31b1 between the raised portion 33 and the lower end portion 31b, the inclined surface 31b1 serving as an insertion guide for facilitating insertion of the squeezing member 3 into the cylindrical neck portion 22 and narrowing in diameter toward the tip.

[0037] The cylindrical portion 31 includes an ironing piece 35 that protrudes from an inner peripheral surface 31d of the cylindrical portion 31 between the upper end portion 31a and the lower end portion 31b.

[0038] As shown in FIG. 3(b), the wiping piece 35 has a ring shape that is continuous in the circumferential direction of the tubular part 31, and a circular through-hole part 36 is formed in the center surrounded by the tip of the wiping piece 35. The wiping piece 35 also has a funnel shape that becomes lower from the base end on the outer periphery side toward the tip on the center side. The through-hole part 36 has a size such that the tip of the wiping piece 35 contacts at least the application part 72 when the applicator 7 passes through the through-hole part 36. This allows the wiping piece 35 to wipe off any excess cosmetic material adhering to the application part 72 when the applicator 7 passes through the through-hole part 36. As an example, the through-hole part 36 has a size such that the tip of the wiping piece 35 contacts the outer periphery of the shaft part 5 when the applicator 72 passes through the through-hole part 36. This allows the wiping piece 35 to scrape off not only the application part 72 but also the cosmetic material adhering to the outer periphery of the shaft part 5. 3(b), slits 35a for adjusting the amount of squeezing may be formed in the squeezing member 3. However, the provision of slits 35a in the squeezing member 3 and the number of slits are optional.

[0039] As shown in FIG. 3, the outer peripheral surface 31c of the tubular portion 31 of the squeezing member 3 has a tapered portion 34 that is tapered in diameter near the connection portion of the flange 32. In this embodiment, the tapered portion 34 of the squeezing member 3 is formed as a tapered surface that gradually reduces in diameter toward the flange 32, but may be formed as a step or the like. By providing the tapered portion 34 to the squeezing member 3, as shown in FIG. 2, when the squeezing member 3 is fitted inside the tubular neck portion 22 of the container body 2, a gap A is formed between the tapered portion 34 of the tubular portion 31 of the squeezing member 3 and the inner surface 22b near the open end 25 of the tubular neck portion 22. Since the squeezing member 3 is made of a soft resin material and has elasticity as a whole, the tapered portion 34 can elastically deform toward the gap A when a force is applied from inside the tubular portion 31 of the squeezing member 3 as described below. The reduced diameter portion 34 is formed in an annular shape around the circumferential direction of the cylindrical portion 31, so that the gap A is also formed in an annular shape.

[0040] 2, a gap B is provided as a space that allows the flange 32 to bulge in the direction of the arrow as the reduced diameter portion 34 undergoes elastic deformation as described above. In the cosmetic container 1 of this embodiment, the gap B is provided between the outer circumferential side (tip side) of the flange 32 and the inner circumferential wall 42 of the lid member 4. Since the flange 32 is configured to bulge in the direction of the arrow in FIG. 2, the flange 32 can be more firmly engaged with the open end 25 of the tubular neck 22, and it is possible to prevent the squeezing member 3 from being dragged into the container body 2 and falling off.

[0041] [Manufacturing method of cosmetic containers] Next, a manufacturing method of the cosmetic container 1 will be described with reference to FIG.

[0042] As shown in Fig. 4(a), a main body unit is formed from the container body 2 and the ironing member 3. Specifically, the ironing member 3 is pressed into the cylindrical neck 22 until the flange 32 engages with the open end 25 of the cylindrical neck 22. Then, the raised portion 33 engages with the stepped portion 24 of the container body 2. As a result, the ironing member 3 is less likely to fall off into the storage portion 21 because the flange 32 engages with the open end 25 of the cylindrical neck 22, and the raised portion 33 engages with the stepped portion 24, making it less likely to be pulled out upward.

[0043] Thereafter, the wiping member 3, particularly a filling nozzle matching the size and shape of the through-hole 36 (see FIG. 3(b)), is inserted into the container body 21 from the open end 25 of the cylindrical neck 22, and the cosmetic is filled in. The wiping member 3 may be attached to the container body 2 after the cosmetic is filled in.

[0044] Next, as shown in FIG. 4(b), an application unit is formed that includes the cover member 4, the shaft portion 5, the wiper member 6, and the applicator body 7. Specifically, the wiper member 6 is inserted into the shaft portion 5 from the tip portion 52 side of the shaft portion 5 until it is engaged with the engagement portion 53. Then, the tubular portion 61 of the wiper member 6 is engaged with the engagement portion 53 of the shaft portion 5. Thereafter, the core material 71 of the applicator body 7 is inserted into the locking hole 52a of the shaft portion 5 and fixed to the tip portion 52 of the shaft portion 5. Furthermore, the base end portion 51 of the shaft portion 5 is inserted into the cover member 4 and fixed to the inner peripheral wall 42 and the top surface 41 of the cover member 4.

[0045] Finally, the application unit is attached to the main unit. Specifically, application body 7 is inserted into storage part 21 from cylindrical neck part 22, and then lid member 4 is fastened to cylindrical neck part 22, thereby attaching lid member 4 to container main body 2.

[0046] [How to use cosmetic containers] Next, a method of using the cosmetic container 1 will be described with reference to Fig. 5 and Fig. 6. Fig. 5 is a diagram for explaining a cosmetic container according to an embodiment of the present invention, where (a) is a partially enlarged cross-sectional view of the cosmetic container before the squeezing member is elastically deformed, and (b) is a partially enlarged cross-sectional view of the cosmetic container after the squeezing member is elastically deformed, and Fig. 6 is a diagram for explaining a cosmetic container according to a comparative example (prior art), where (a) is a partially enlarged cross-sectional view at the start of capping, and (b) is a partially enlarged cross-sectional view just before capping is completed. In the following description, components similar to those described above are given the same reference numerals and duplicated descriptions will be omitted as appropriate.

[0047] When using the cosmetic container 1, the lid member 4 is removed from the container body 2, and the applicator body 7 is pulled out from the cylindrical neck portion 22. At this time, the applicator part 72 passes through the through-hole part 36 surrounded by the scraping piece 35, and excess cosmetic material adhering to the applicator part 72 is scraped off.

[0048] After use, the applicator 7 is inserted into the container body 2, and the lid member 4 is attached to the cylindrical neck portion 22. At this time, as shown in Fig. 2, the entire circumference of the top surface of the flange 32 of the squeezing member 3 is pressed against the shaft portion 5, causing the inclined sealing surface 32a to elastically deform flat, and the entire circumference of the sealing surface 32a to be tightly attached to the shaft portion 5. In addition, the outer peripheral surface 31c of the squeezing member 3 is tightly attached to the inner surface 22b of the cylindrical neck portion 22. As a result, the squeezing member 3 also functions as an inner plug, suppressing the volatilization of the cosmetic.

[0049] In this way, the applicator 7 passes over the squeezing member 3 of the cosmetic container 1 each time it is used, squeezing out excess liquid cosmetic, so the liquid cosmetic tends to remain on the inner surface of the squeezing member 3. In particular, viscous liquid cosmetic materials that form a film, such as mascara, often contain film-forming components and volatile components, and as the applicator 7 and shaft 5 are repeatedly pulled out and pushed into the container body 2, the liquid cosmetic repeatedly adheres to the lid member 4, shaft 5, etc., and solidifies, and as shown in Figures 5(a) and 6(a), solidified cosmetic material C may accumulate, particularly around the wiper member 6.

[0050] In this regard, the squeezing member 103 of the conventional cosmetic container 100 does not have a reduced diameter portion 34 as in the squeezing member 3 of this embodiment, and therefore no gap A is provided between the squeezing member 3 and the cylindrical neck portion 22. As shown in Fig. 6(a), when the cap member 4 is attached to the cylindrical neck portion 22 in the direction of the arrow with solidified cosmetic material C accumulated on the cap member 4 and the shaft portion 5, the solidified cosmetic material C comes into contact with the inner surface of the cylindrical portion 131 of the squeezing member 103 as shown in Fig. 6(b). As the capping operation continues, the shaft portion 5 advances inside the container body 2 while the solidified cosmetic material C presses against the inner surface of the cylindrical portion 131 of the squeezing member 103. At this time, stress is generated in the direction of the arrow shown in Figure 6(b) in the squeezing member 103, which is elastic as a whole, causing the engagement between the flange 132 and the cylindrical neck 22 to be released, and as the capping operation progresses, the squeezing member 103 may be dragged into the container body 2 and fall off.

[0051] In contrast, the cosmetic container 1 according to this embodiment has gap A and gap B (see FIG. 2). Gap A is a gap between the inner surface 22b near the open end 25 of the tubular neck 22 and the outer peripheral surface 31c of the tubular portion 31 of the squeezing member 3. This gap A is a region that allows the tubular portion 31 (particularly the reduced diameter portion 34) to bulge in the direction of expanding the diameter when the squeezing member 3 elastically deforms. On the other hand, gap B is a region that allows the flange 32 to bulge in the direction of expanding the diameter when the squeezing member 3 elastically deforms.

[0052] As shown in Fig. 5(a), when solidified cosmetic material C is piled up on the cover member 4 and the shaft portion 5, the cover member 4 is attached to the cylindrical neck portion 22 in the direction of the arrow, as shown in Fig. 5(b), the solidified cosmetic material C presses against the inner circumferential surface 31d of the squeezing member 3. At this time, the squeezing member 3 elastically deforms, causing the cylindrical portion 31 (particularly the reduced diameter portion 34) to bulge in the direction of expanding the diameter so as to fill the gap A. At the same time, the flange 32 bulges in the direction of expanding the diameter toward the inside of the gap B (the direction of the arrow in Fig. 5(b)).

[0053] As a result, the flange 32 is more firmly engaged with the open end 25 of the tubular neck 22 during the capping operation, thereby preventing the squeezing member 3 from being dragged into the container body 2 and falling off.

[0054] In addition, the top surface of the flange 32 of the ironing member 3 is provided with a gentle seal surface 32a that gradually reduces in diameter from the upper end downward. In other words, the flange 32 gradually thickens slightly from its inner side toward the outer periphery, which encourages the flange 32 to bulge into the gap B (in the direction of the arrow in FIG. 5(b)) when stress is applied to the flange 32 from above. This allows the flange 32 to be more firmly engaged with the open end 25 of the cylindrical neck 22, further preventing the ironing member 3 from falling off.

[0055] In order to confirm the effects of the present invention, the inventors of the present invention conducted a comparative experiment between a cosmetic container 1 (see FIG. 5) according to the present invention and a cosmetic container 100, which is a comparative example having no void A (see FIG. 6).

[0056] In the experiment, for both the cosmetic container 1 according to the present invention and the cosmetic container 100 as a comparative example, the cosmetic material was repeatedly attached to the lid member 4, shaft portion 5, etc. and solidified, and the solidified cosmetic material C was piled up especially around the wiper member 6, as shown in Fig. 5(a) and Fig. 6(a). For each of the cosmetic container 1 according to the present invention and the cosmetic container 100 as a comparative example prepared in this manner, the opening and closing was repeated up to 10 times, and the fitting state of the squeezing members 3, 103 with respect to the cylindrical neck portion 22 was observed each time. The confirmation results for 10 samples of each of the cosmetic container 1 according to the present invention and the cosmetic container 100 as a comparative example are shown in Fig. 7.

[0057] In the table of Fig. 7, "fallen off" indicates a state in which the squeezing members 3, 103 come off the cylindrical neck portion 22 and enter completely into the container body 2, and then fall off. "deformed" indicates a state in which the squeezing members 3, 103 do not enter completely into the container body 2, but are deformed compared to their initial state. "No change" indicates a state in which the squeezing members 3, 103 do not change compared to their initial state.

[0058] 7, in the comparative cosmetic container 100, 2 out of 10 samples were found to have withstood 10 opening and closing operations without any change, 7 samples were found to have fallen off before the 10th opening and closing operation, and 1 sample was found to have deformed after the 10th opening and closing operation. On the other hand, in the cosmetic container 1 according to the present invention, 6 out of 10 samples were found to have withstood 10 opening and closing operations without any change, 3 samples were found to have deformed after the 10th opening and closing operation, and 1 sample was found to have fallen off after the 7th opening and closing operation.

[0059] From these results, it was confirmed that, according to the cosmetic container 1 of the present invention, the provision of the gap A significantly reduces the frequency of the squeezing member 3 coming off the tubular neck portion 22 and falling into the container body 2.

[0060] Modifications of the above embodiment will be described below with reference to Fig. 8. Fig. 8 is a diagram for explaining modifications of the present invention, where (a) is a partially enlarged cross-sectional view of a cosmetic container according to Modification 1, and (b) is a partially enlarged cross-sectional view of a cosmetic container according to Modification 2. In the following description, the same components as those described above are given the same reference numerals, and duplicated descriptions will be omitted as appropriate.

[0061] [Variation 1] In the above embodiment, the cosmetic container 1 is described in which the squeezing member 3 is provided with the reduced diameter section 34 to form the gap A. However, the present invention is not limited to this, and instead of providing the squeezing member 3 with the reduced diameter section 34, the gap A may be formed by providing an expanded diameter section 22b1 on the inner surface 22b of the cylindrical neck 22, in which the diameter of the cylindrical neck 22 is expanded near the open end 25, as shown in Fig. 8(a).

[0062] [Variation 2] In addition to providing the reduced diameter portion 34 in the squeezing member 3 according to the above embodiment, as shown in FIG. 8(b), an expanded diameter portion 22b1 may be provided on the inner surface 22b of the cylindrical neck portion 22, the expanded diameter portion 22b1 being expanded in diameter near the open end 25 of the cylindrical neck portion 22, and a gap A may be formed by the reduced diameter portion 34 and the expanded diameter portion 22b1.

[0063] Although the present invention has been described with reference to the above-mentioned embodiment, the present invention is not limited to the above-mentioned embodiment, and improvements or modifications can be made within the scope of the invention or the purpose of the improvements. [Explanation of symbols]

[0064] 1. Cosmetic container 2 Container body 3. Ironing material 4 Cover member 5 Shaft section 6 Wiper member 7 Applied body 21 Storage unit 22 Cylindrical neck 22a Outer surface 22b Inside 22b1 Expanded diameter part 23 Threaded section 24 Step 25 Open End 31 Cylindrical part 31a Upper end 31a1 Slope 31b Lower end 31b1 Slope 31c Outer surface 31d Inner surface 32 Flange 32a Sealing surface 33 Ridge 34 Reduced diameter part 35 Squeezing Piece 35a Slit 36 Through hole 41 Top 42 Inner wall 43 Thread groove 51 Proximal end 52 Tip 52a Locking hole 53 Engagement part 61 Cylindrical part 62 Wiper section 71 Core material 72 Application section 100 Cosmetic containers (comparison example / conventional product) 103 Ironing material A void B void C (Solidified) Cosmetic

Claims

1. a container body including a storage section for storing a cosmetic material and a cylindrical neck section provided at an end of the storage section; A squeezing member having elasticity and attached to the inside of the cylindrical neck portion; a cover member that is removably attached to the outside of the cylindrical neck portion, the cover member including a stem that extends into the container portion through the cylindrical neck portion when the cover member is attached to the cylindrical neck portion, and an applicator body that is provided at the tip of the stem and is immersed in the cosmetic material contained in the container portion; A cosmetic container having The ironing member has a cylindrical portion that contacts the inner surface of the cylindrical neck portion, and a flange that is formed on an upper portion of an outer peripheral surface of the cylindrical portion and protrudes in a brim-like shape so as to be engageable with an open end of the cylindrical neck portion, The outer circumferential surface of the cylindrical portion of the ironing member is provided with a tapered portion having a tapered surface that gradually reduces in diameter toward the flange so that the flange connection portion has a minimum diameter, thereby forming a gap between the inner surface near the open end of the cylindrical neck and the outer circumferential surface of the cylindrical portion of the ironing member. A cosmetic container characterized by:

2. 2. The cosmetic container according to claim 1, wherein the gap is an area that allows the tubular portion to expand in a radial direction so as to fill the gap when the squeezing member is elastically deformed.

3. 3. The cosmetic container according to claim 1, wherein the reduced diameter portion of the squeezing member is formed in an annular shape around the circumferential direction of the cylindrical portion, so that the gap is formed in an annular shape.

4. 4. The cosmetic container according to claim 1, further comprising a region that allows the flange to bulge in a radially expanding direction when the squeezing member is elastically deformed.

5. 5. The cosmetic container according to claim 1, wherein the inner surface of the cylindrical neck portion has a diameter-increasing portion that increases in diameter near the open end of the cylindrical neck portion.

6. A cosmetic container comprising: a container body including a container section for storing a cosmetic material and a cylindrical neck portion provided at an end of the container section; and a lid member removably attached to the outside of the cylindrical neck portion, the lid member including a shaft portion extending through the cylindrical neck portion into the container section when the lid member is attached to the cylindrical neck portion, and an applicator body provided at the tip of the shaft portion and immersed in the cosmetic material contained in the container section, The ironing member has a cylindrical portion that contacts the inner surface of the cylindrical neck portion, and a flange that is formed on an upper portion of an outer peripheral surface of the cylindrical portion and protrudes in a brim-like shape so as to be engageable with an open end of the cylindrical neck portion, a reduced diameter portion having a reduced diameter near a connection portion of the flange, the reduced diameter portion being disposed on an outer circumferential surface of the cylindrical portion of the squeezing member, the reduced diameter portion being disposed on an inner surface near an open end of the cylindrical neck and the outer circumferential surface of the cylindrical portion of the squeezing member; The reduced diameter portion is configured with a tapered surface that gradually reduces in diameter toward the flange so that the connecting portion of the flange has a minimum diameter. A squeezing member characterized by the above.

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