Cosmetic containers and cosmetics using them

Abstract

To provide a cosmetic container that can suppress the separation of materials between the inner lids formed from two different resin materials. [Solution] A cosmetic container comprising a container body having an internal space for containing cosmetics and an opening that connects the internal space to the outside, and an inner lid attached to the opening of the container body, wherein the inner lid comprises a bottom portion having a cosmetic passage hole through which the cosmetic passes, a peripheral wall portion formed to rise from the peripheral edge of the bottom portion, and a fixing portion formed on the outer circumference of the peripheral wall portion for fixing the inner lid to the opening of the container body, the fixing portion having a clamping portion sandwiched between the outer peripheral surface of the peripheral wall portion and the inner peripheral surface of the container body, the clamping portion having a plurality of window portions that penetrate between the peripheral wall portion side and the container body side, and the peripheral wall portion having a plurality of protrusions arranged inside each of the plurality of window portions.

Description

Technical Field

[0001] The present invention relates to a cosmetic container provided with an inner lid formed of two different resin materials.

Background Art

[0002] As a cosmetic container for accommodating powdery cosmetics, there is one in which an inner lid is attached to an opening of a container body. This inner lid is provided with a hole through which cosmetics can pass, and the entire inner lid is formed of a resin material having flexibility.

[0003] The applicant of the present application has found that an inner lid formed of such a resin material having flexibility is deformed by the adhesion of the oil content contained in the cosmetics and is likely to come off from the container body. Therefore, a member for fixing the inner lid and the container body is formed of a soft resin material, and other members of the inner lid are formed of different hard resin materials, and they are integrally molded, and an application has been filed for a container that suppresses deformation of the inner lid (Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a cosmetic container capable of suppressing peeling between materials of an inner lid formed of two different resin materials.

Means for Solving the Problems

[0006] The present invention solves the above problems and provides a cosmetic container comprising a container body having an internal space for containing cosmetics and an opening that connects the internal space to the outside, and an inner lid portion attached to the opening of the container body, wherein the inner lid portion comprises a bottom portion having a cosmetic passage hole through which the cosmetic passes, a peripheral wall portion formed to rise from the peripheral edge of the bottom portion, and a fixing portion formed on the outer circumference of the peripheral wall portion for fixing the inner lid portion to the opening of the container body, the fixing portion having a clamping portion sandwiched between the outer peripheral surface of the peripheral wall portion and the inner peripheral surface of the container body, the clamping portion having a plurality of window portions that penetrate between the peripheral wall portion side and the container body side, and the peripheral wall portion having a plurality of protrusions arranged inside each of the plurality of window portions.

[0007] Here, it is preferable that the peripheral wall portion and the bottom portion be made of a material that is less likely to adsorb oil than the fixing portion. Furthermore, the fixing portion may be made of a material that is more elastically deformable than the peripheral wall portion and the bottom portion. Furthermore, it is preferable that the peripheral wall portion and the bottom portion are integrally molded with the fixing portion. Furthermore, it is preferable that multiple protrusions are arranged along the circumferential direction of the peripheral wall portion at predetermined intervals from one another. Furthermore, the protrusions are preferably arranged to form multiple rows along the circumferential direction of the peripheral wall. Furthermore, the protrusions may include a row of first protrusions located further away from the upper end of the peripheral wall and a row of second protrusions located closer to the upper end. Furthermore, a first bulge is provided in the area of ​​the outer circumferential surface of the fixing portion between the first protrusion and the second protrusion, which bulges in the direction of the inner circumferential surface of the container body, and when the inner lid is attached to the container body, the first bulge is in contact with the inner circumferential surface of the container body. Furthermore, the fixing portion may include a flange portion that contacts the container opening end of the container body when the inner lid portion is attached to the container body. Furthermore, a second bulge is provided in the area of ​​the outer circumferential surface of the fixing portion between the flange portion and the second protrusion, which bulges in the direction of the inner circumferential surface of the container body, and it is preferable that the second bulge contacts the inner circumferential surface of the container body when the inner lid portion is attached to the container body. Furthermore, the surface of the flange portion of the container body that contacts the container opening end is provided with a third bulge that protrudes toward the top surface of the container opening end, and when the inner lid is attached to the container body, the third bulge should contact the top surface of the container opening end. Furthermore, the first bulge and the second bulge are provided in multiple locations along the circumferential direction of the peripheral wall, and non-bulge areas where no bulge is formed are provided between the multiple first bulges and between the multiple second bulges. Furthermore, it is preferable that the non-bulging regions between the plurality of first bulging portions and the non-bulging regions between the plurality of second bulging portions are formed at different positions in the circumferential direction of the peripheral wall portion. [Effects of the Invention]

[0008] The cosmetic container according to the present invention includes an inner lid made of two different resin materials, which prevents peeling between these different resin material components. [Brief explanation of the drawing]

[0009] [Figure 1] This is an exploded perspective view of the container body and inner lid that constitute the cosmetic container according to this embodiment. [Figure 2] This is a cross-sectional view taken along line II-II in Figure 1. [Figure 3] This is a side view of the inner lid portion of a cosmetic container according to this embodiment. [Figure 4] This is a plan view of the inner lid portion of a cosmetic container according to this embodiment. [Figure 5] This is a partial cross-sectional view showing the inner lid of the cosmetic container according to this embodiment attached to the container body. [Figure 6] This diagram schematically illustrates the function of the first bulge in the inner lid of the cosmetic container according to this embodiment. [Figure 7] (a) A side view of the inner lid of a cosmetic container according to Modification 1. (b) A side view of the inner lid of a cosmetic container according to Modification 2. [Modes for carrying out the invention]

[0010] The following describes in detail, with reference to the drawings, embodiments of the cosmetic container and inner lid used therein according to the present invention. However, the present invention is not limited in any way to these embodiments.

[0011] <Overall composition of cosmetic container 1> Figure 1 is an exploded perspective view of a cosmetic container 1 according to this embodiment. As shown in Figure 1, the cosmetic container 1 comprises a container body 3 having an internal space capable of containing a cosmetic CM, an inner lid portion 5 attached to the opening 300 of the container body 3 and capable of containing an applicator, and an outer lid portion 7 for sealing the opening 300 of the container body 3. Furthermore, the cosmetic container 1 of this embodiment includes an applicator portion 9 housed in the inner lid portion 5. The detailed configuration of the container body 3 will be described later, but the container body 3 is formed to have external dimensions that allow the outer lid 7 to be attached to it. Furthermore, the container body 3 is provided with a screw portion 35 for attaching the outer lid 7.

[0012] The outer lid portion 7 is formed in a top-mounted cylindrical shape that can be fitted over the cylindrical portion 33 of the container body 3. Specifically, it comprises a top plate portion 71 that constitutes the ceiling portion of the outer lid portion 7, and a peripheral wall portion 73 that hangs down from the peripheral edge of the top plate portion 71. The top plate portion 71 is formed in dimensions and shape that can seal the opening 300 when the outer lid portion 7 is attached to the container body 3. Furthermore, a packing 77 made of a thin, elastic material is provided on the back side of the top plate portion 71, that is, the surface facing the opening 300 when attached to the container body 3. In addition, a threaded portion 75 is provided on the inner circumferential surface of the peripheral wall portion 73 that can be screwed into the threaded portion 35 of the cylindrical portion 33.

[0013] The applicator 9 of this embodiment is a so-called puff that can hold the cosmetic CM and apply it to the face. The applicator 9 is not limited to a puff as long as it can be accommodated inside the middle lid part 5. For example, it may be a brush or other applicator. Hereinafter, each member will be described in detail. In the following description, the upper side and the lower side of the cosmetic container 1 of this embodiment are defined by the direction of the arrow shown in FIG. 1, that is, the vertical direction in FIG. 1.

[0014] <Container body 3> The container body 3 of this embodiment includes a housing part 31 having an internal space 310 capable of housing the cosmetic CM, and a cylindrical part 33 provided continuously above the housing part 31. The cylindrical part 33 forms an opening 300 continuous with the internal space 310, and the cosmetic CM can be filled and housed into the internal space 310 of the housing part 31 through such an opening 300.

[0015] The cylindrical part 33 is an annular peripheral wall formed to protrude upward from the upper end of the housing part 31 to a predetermined height. The space surrounded by such a cylindrical part 33 forms a cylindrical shape and is formed to have an inner dimension into which the middle lid part 5 can be fitted. And the outer peripheral surface 37 of the cylindrical part 33 is formed to have an outer dimension to which the outer lid part 7 can be put on and attached. Further, a screw part 35 for attaching the outer lid part 7 is provided on the outer peripheral surface 335 of the cylindrical part 33.

[0016] <Middle lid part 5> As shown in FIG. 1, the middle lid part 5 of this embodiment is formed in a concave shape that opens upward. Specifically, it includes a bottom part 51, a peripheral wall part 53 provided so as to rise from the peripheral edge of the bottom part 51, and a fixing part 55 provided on the outer peripheral surface 531 of the peripheral wall part 53 for fixing the middle lid part 5 to the container body 3. When attaching such a middle lid part 5 to the container body 3, first, insert it from the opening 300 of the container body 3 with the bottom part 51 facing downward. Then, press-fit the middle lid part 5 until the fixing part 55 is pressed against the inner peripheral surface of the container body 3. Thereby, the middle lid part 5 is fixed to the container body 3 in a fitted state.

[0017] The bottom 51 of the inner lid 5 is formed to be substantially the same shape and dimensions as the opening 300 of the container body 3. The bottom 51 is positioned within the internal space 310 of the container body 3 when the inner lid 5 is attached to the container body 3. Holes 511 are formed through the bottom 51, through which the cosmetic CM can pass. Multiple holes 511 are formed in this embodiment, and their positions are biased towards the center of the bottom 51. By forming the holes 511 towards the center of the bottom 51 in this way, it is possible to prevent excessive dispensing of the cosmetic CM from around the applicator 9 stored in the inner lid 5. The number of such holes 511, their individual sizes, and their arrangement can be appropriately determined according to the characteristics of the cosmetic CM to be contained.

[0018] In this embodiment, the peripheral wall portion 53 is formed to a height that allows the outer lid portion 7 to be closed with the applicator 9 housed inside the inner lid portion 5. Furthermore, the peripheral wall portion 53 is formed in a substantially cylindrical shape that is positioned along the inner circumferential surface 331 of the cylindrical portion 33 when the inner lid portion 5 is attached to the container body 3.

[0019] Figure 2 is a cross-sectional view of the peripheral wall portion 53 along line II-II, and Figure 3 is a side view of the inner cover portion 5. The configuration of the peripheral wall portion 53 and the fixing portion 55 will be described below with reference to Figures 2 and 3. As shown in Figure 2, in the peripheral wall portion 53, a recess 533 is formed by cutting out a part of the outer peripheral surface 531 of the peripheral wall portion 53 to attach the fixing portion 55. The recess 533 is formed with a predetermined width from the upper end portion 537 of the peripheral wall portion 53 toward the bottom portion 51 of the inner cover portion 5. Specifically, in this embodiment, the recess 533 is formed in a range of approximately 1 / 3 of the vertical length of the peripheral wall portion 53 from the upper end portion 537. Furthermore, the peripheral wall portion 53 in the portion where the recess 533 is formed is formed such that its radial thickness T1 is thinner than the thickness T2 of the portion where the recess 533 is not formed. In other words, the portion where the recess 533 is formed is thinner than the other portions.

[0020] The fixing portion 55 is provided on the outer circumferential surface 531 of the peripheral wall portion 53 so as to fit into the recess 533. The fixing portion 55 comprises a thin plate-shaped clamping portion 551 that is continuous in an annular shape along the outer circumferential surface 531 of the peripheral wall portion 53, and a flange portion 559 that protrudes substantially horizontally radially outward from the upper end of the clamping portion 551. The clamping portion 551 is provided so as to cover the outer circumferential surface 531 of the peripheral wall portion 531 with a predetermined width from the upper end 537 toward the bottom 51. Specifically, as shown in Figure 3, the fixing portion 55 of this embodiment is formed in a range of approximately 1 / 3 of the vertical length of the peripheral wall portion 53 from the upper end 537. That is, the clamping portion 551 of the fixing portion 55 is formed with substantially the same width (vertical length) as the recess 533. In this way, the fixing portion 55 is partially formed on the outer circumferential surface 531 at a position away from the bottom 51.

[0021] As described above, the recess 533 is formed such that its vertical length is approximately equal to the vertical length of the clamped portion 551 of the fixing portion 55. Furthermore, the depth of the radial recess is also formed to approximately equal to the radial thickness of the clamped portion 551. As a result, when the clamped portion 551 is fixed in the recess 533, the clamped portion 551 and the outer peripheral surface 531 of the peripheral wall portion 53 become flush. That is, the radial outer surfaces of the clamped portion 551 and the peripheral wall portion 53 are aligned. In this way, no step is formed between the clamped portion 551 and the outer peripheral surface 531 of the peripheral wall portion 53, which further improves the adhesion between the outer peripheral surface 531 of the peripheral wall portion 53 and the inner peripheral surface 331 of the cylindrical portion 33.

[0022] The flange portion 559 is formed to abut against the upper end portion 333 of the cylindrical portion 33 when the inner lid portion 5 is attached to the container body 3. Furthermore, the flange portion 559 protrudes by a length that is at least approximately the same as the radial thickness of the cylindrical portion 33. As a result, the flange portion 559 is positioned to cover the upper end portion 333 of the cylindrical portion 33 when the inner lid portion 5 is attached to the container body 3 (see Figure 5, described later).

[0023] <Materials for inner lid part 5> Here, we will explain the materials of each part that make up the inner lid 5. First, the bottom portion 51 and the peripheral wall portion 53 that constitute the inner lid portion 5 are made of the same material. On the other hand, the fixing portion 55 is made of a different material from the bottom portion 51 and the peripheral wall portion 53. To explain further, the fixing portion 55 in this embodiment is made of a material that is more elastically deformable than the bottom portion 51 and the peripheral wall portion 53.

[0024] The following provides a detailed explanation of each material. First, the bottom portion 51 and the peripheral wall portion 53 that constitute the inner lid portion 5 are both integrally formed from the same first resin material. This first resin material has the characteristic of being less likely to adsorb oil than the resin material that forms the fixing portion 55. The bottom portion 51 and the peripheral wall portion 53 formed from this first resin material are less susceptible to change due to external forces and temperature changes in the normal usage environment. The first resin material is preferably selected from polyethylene terephthalate (PET) and polycyclohexylene dimethylene terephthalate (PCT). Furthermore, the first resin material is preferably a transparent or translucent resin with light transmittance so that the cosmetic product contained in the container body 3 can be seen from the outside.

[0025] The fixing portion 55 that constitutes the inner lid portion 5 is formed of a second resin material that is softer than the first resin material. More specifically, the second resin material is a resin material that is capable of a certain degree of elastic deformation. By forming the fixing portion 55 with a soft second resin material in this way, the frictional force between the inner lid portion 5 and the container body 3 is increased when the inner lid portion 5 is attached to the container body 3, allowing the inner lid portion 5 to be fixed more securely. The second resin material is preferably a resin material selected from polyethylene (PE), polypropylene (PP), and thermoplastic elastomer.

[0026] As explained above, the fixing portion 55 is made of a resin material that is more susceptible to the effects of oil than the peripheral wall portion 53 and the bottom portion 51. However, as mentioned above, the fixing portion 55 is provided on the outer peripheral surface 531 of the peripheral wall portion 53, which is relatively far from the bottom portion 51. Furthermore, the fixing portion 55 is provided in a limited area so as to cover only a part of the outer peripheral surface 531 of the peripheral wall portion 53. In this way, because the position of the fixing portion 55 is far from the internal space 310 of the container body 3 and its area is partially limited, the possibility of contact with the cosmetic product contained in the container body 3 is reduced.

[0027] In other words, the fixing portion 55 is made of a resin material that is relatively susceptible to the effects of oil, but it is provided only in areas where cosmetic products are less likely to come into contact. Furthermore, the peripheral wall portion 53 and the bottom portion 51, which are more likely to come into contact with cosmetic products, are both made of a resin material that is relatively less susceptible to the effects of oil. As a result, the inner lid portion 5 as a whole is less prone to deformation due to the adhesion of oil, and the inner lid portion 5 can be prevented from falling off the container body 3.

[0028] <Fixing mechanism 60> In this embodiment, the inner lid 5 is equipped with a fixing mechanism 60 to suppress peeling and misalignment of the fixing part 55 from the peripheral wall 53. The fixing mechanism 60 is composed of a plurality of protrusions 535 provided on the peripheral wall 53 and a plurality of window parts 553 provided on the fixing part 55. These interlock with each other, preventing the fixing part 55 from detaching from the peripheral wall 53. In other words, these protrusions 535 and window parts 553 strengthen the bond between the first resin material of the peripheral wall 53 and the second resin material of the fixing part 55. As a result, even if a strong external force is applied to the fixing part 55, such as when attaching or detaching the inner lid 5 to the container body 3, it is possible to suppress the fixing part 55 from peeling off from the peripheral wall 53 and detaching.

[0029] As shown in Figure 2, the protrusion 535 is provided so as to project radially outward in the recess 533. In this embodiment, multiple protrusions 535 are provided at different positions in the vertical direction. Specifically, the first protrusion 535a is provided at a position further away from the upper end 537 of the peripheral wall portion 53, and the second protrusion 535b is provided at a position closer to the upper end 537 than the first protrusion 535a. These first protrusions 535a and the second protrusions 535b are formed to penetrate the fixing portion 55. That is, the tips 5351 of the first protrusion 535a and the second protrusion 535b are exposed from the window portion 553 toward the outer peripheral surface 531.

[0030] The window portion 553 is an opening formed to penetrate the clamped portion 551 of the fixing portion 55. The window portion 553 comprises a window portion 553a provided at a position corresponding to the first protrusion 535a of the peripheral wall portion 53, and a window portion 553b provided at a position corresponding to the second protrusion 535b. The window portions 553a and 553b are formed with a shape and internal dimensions that allow the first protrusion 535a and the second protrusion 535b of the peripheral wall portion 53 to be placed inside, respectively.

[0031] The first protrusion 535a and the second protrusion 535b are formed to have a shape and external dimensions that allow them to be inserted into the window portions 553a and 553b of the fixing portion 55, respectively. In this embodiment, the protrusion 535 is formed in a substantially rectangular shape that extends along the circumferential direction of the peripheral wall portion 53 when viewed from the side. The protruding height (radial length) of the first protrusion 535a and the second protrusion 535b is formed to be substantially the same as the radial length of the clamped portion 551. As a result, when the clamped portion 551 is fixed in the recess 533, the radial outer surface of the clamped portion 551 and the tips 5351 of the first protrusion 535a and the second protrusion 535b become flush. That is, the radial outer surfaces of the clamped portion 551 and the first protrusion 535a and the second protrusion 535b are aligned. In this way, the step difference between the clamping portion 551 and the tip portion 5351 is reduced, which further improves the adhesion between the outer peripheral surface 531 of the peripheral wall portion 53 and the inner peripheral surface 331 of the cylindrical portion 33.

[0032] Furthermore, the first protrusion 535a and the second protrusion 535b are formed in a substantially trapezoidal shape in plan view, as shown in Figure 4, which will be described later. That is, the width (circumferential length) on the base side of the first protrusion 535a and the second protrusion 535b is wider than the width (circumferential length) on the tip side 5351. This increases the rigidity of the first protrusion 535a and the second protrusion 535b. In addition, the side surfaces of the first protrusion 535a and the second protrusion 535b form inclined surfaces, which increases the contact area with the window portion 553 in this portion. As a result, the bond between the fixing portion 55 and the peripheral wall portion 53 becomes stronger.

[0033] Furthermore, a third protrusion 535c is provided near the upper end of the recess 533 so as to protrude into the flange portion 559 of the fixing portion 55. The third protrusion 535c is formed to be embedded in the base side of the flange portion 559. In other words, the tip portion 5351 of the third protrusion 535c is not exposed to the outside. The third protrusion 535c is formed such that its tip 5351 protrudes radially outward more than the inner circumferential surface 331 of the cylindrical portion 33 (see Figure 5). This stabilizes the support provided by the upper end 333 of the cylindrical portion 33. Furthermore, it increases the rigidity of the flange portion 559.

[0034] Furthermore, the recess 533 of this embodiment is provided with a fourth protrusion 535d, which is formed in the region between the first protrusion 535a and the second protrusion 535b and has a lower protrusion height than the first protrusion 535a and the second protrusion 535b. Also, a fifth protrusion 535e is provided directly below the lower surface 5591 of the flange portion 559. The upper end of this fifth protrusion 535e is formed continuously with the lower surface 5591, and the lower part is cut out at an angle to form an inclined surface 5352. This maintains the thickness of the clamped portion 551 in the part facing this inclined surface 5532. These fourth protrusions 535c and fifth protrusions 535d create even finer irregularities inside the recess 533, thereby strengthening the bond between the peripheral wall 53 and the fixing portion 55.

[0035] <Arrangement of the protrusion 535 and window portion 553> Figure 4 is a plan view of the inner lid portion 5. In the following, the arrangement of the first protrusion 535a and the second protrusion 535b, and the arrangement of the first window portion 553a and the second window portion 553b will be explained with reference to the side view of the inner lid portion 5 in Figure 3 and the top view of the inner lid portion 5 in Figure 4. As described above, the first protrusion 535a is in a corresponding positional relationship with the first window portion 553a, and the second protrusion 535b and the second window portion 553b are in corresponding positions, so the protrusion 535 and the window portion 553 are in the same position.

[0036] In this embodiment, both the first protrusions 535a and the second protrusions 535b are provided in multiples along the circumferential direction of the peripheral wall portion 53 at predetermined intervals from each other. That is, rows formed by multiple first protrusions 535a and rows formed by multiple second protrusions 535b are provided in two rows, upper and lower. Furthermore, these multiple first protrusions 535a and second protrusions 535b are provided at positions that coincide with each other in the circumferential direction of the peripheral wall portion 53. As shown in Figure 4, eight first protrusions 535a and eight second protrusions 535b are provided at equal intervals in the circumferential direction of the fixing portion 55 in this embodiment.

[0037] As shown in Figure 4, the first protrusion 535a and the second protrusion 535b in this embodiment are positioned opposite each other in a plan view, with the center of the inner lid 5 in between. Furthermore, since the first protrusion 535a and the second protrusion 535b are made of a harder resin material than the fixing part 55, they can brace against the radial movement of the inner lid 5 when attached to the container body 3. As a result, the radial movement of the inner lid 5 relative to the container body 3 is suppressed.

[0038] In this embodiment, both the first window section 553a and the second window section 553b are provided in multiples along the circumferential direction of the peripheral wall section 53 at predetermined intervals from each other. That is, rows formed by multiple first window sections 553a and rows formed by multiple second window sections 553b are provided in two rows, upper and lower. The first window sections 553a and the second window sections 553b are provided at positions that coincide with each other in the circumferential direction of the peripheral wall section 53. As shown in Figure 4, eight first window sections 553a and eight second window sections 553b are provided at approximately equal intervals along the circumferential direction of the peripheral wall section 53 in this embodiment.

[0039] <Bulge 555> The bulging portion 555 will now be described again, referring to Figures 2 and 3. A bulge portion 555 is formed in the fixed portion 55. The bulge portion 555 comprises a first bulge portion 555a, a second bulge portion 555b, and a third bulge portion 555c. When these first bulge portions 555a to the third bulge portion 555c are pressed against the container body 3, a sealing effect is achieved, preventing the cosmetic from leaking out. The first bulge portion 555a, the second bulge portion 555b, and the third bulge portion 555c will be described in detail below.

[0040] The first bulge portion 555a, which bulges out toward the inner circumferential surface 331 of the container body 3, is located on the surface of the clamping portion 551 facing the inner circumferential surface 331 of the container body 3, in the region between the first window portion 553a and the second window portion 553b. The first bulge portion 555a is formed as a convex ridge extending to a predetermined length along the circumferential direction of the fixing portion 55. In this embodiment, multiple first bulge portions 555a are provided at predetermined intervals in the circumferential direction. Between two adjacent first bulge portions 555a, there is a non-bulge region 557a where no such first bulge portion 555a is formed. By providing such first bulge portions 555a and non-bulge regions 557a, when attaching the inner lid portion 5 to the container body 3, air inside the container body 3 can escape to the outside through the non-bulge region 557a. As a result, the attachment of the inner lid portion 5 becomes smoother.

[0041] In this embodiment, the first bulge 555a is formed in a mountain shape that gently bulges out toward the inner circumferential surface 331 of the container body 3 in cross-sectional shape. The height of the bulge can be set arbitrarily, but when the inner lid 5 is attached to the container body 3, it is formed to a height such that at least its top contacts the inner circumferential surface 331 of the container body 3. Note that the cross-sectional shape of the first bulge 555a is not limited to a mountain shape, but may be a semicircle, semiellipse, polygon, trapezoid, etc.

[0042] The second bulge portion 555b, which bulges out toward the inner circumferential surface 331 of the container body 3, is located on the surface of the clamped portion 551 facing the inner circumferential surface 331 of the container body 3, in the region between the second window portion 553b and the flange portion 559. The second bulge portion 555b is formed to extend to a predetermined length along the circumferential direction of the fixing portion 55. In this embodiment, multiple second bulge portions 555b are provided at predetermined intervals in the circumferential direction. Between two adjacent second bulge portions 555b, there is a non-bulge region 557b where no such bulge portion 555b is formed. By providing such a non-bulge region 557b, when attaching the inner lid portion 5 to the container body 3, air inside the container body 3 can escape to the outside through the non-bulge region 557b. As a result, the attachment of the inner lid portion 5 becomes smoother.

[0043] In this embodiment, the second bulge 555b is formed so that its protruding height (radial length) gradually increases from the portion immediately above the second window portion 553b toward the flange portion 559. After passing through this portion where the height increases, a flat portion with a substantially constant height (radial length) is formed up to the upper flange portion 559. The height of this second bulge 555b can be set arbitrarily, but when the inner lid portion 5 is attached to the container body 3, it is formed to a height at which at least the flat portion abuts against the inner circumferential surface 331 of the container body 3.

[0044] In this embodiment, the non-bulging region 557a between two circumferentially adjacent first bulging portions 555a and the non-bulging region 557b between two circumferentially adjacent second bulging portions 555b are provided at different positions in the circumferential direction. By thus shifting the circumferential positions of the non-bulging region 557a between the first bulging portions 555a and the non-bulging region 557b between the second bulging portions 555b, leakage to the outside from the non-bulging regions 557a and 557b to which the cosmetic material is applied can be suppressed.

[0045] The third bulge portion 555c, which protrudes toward the open end, is provided on the lower surface 5591 of the flange portion 559 that faces the open end (upper end portion 333) of the container body 3. The third bulge portion 555c is formed as a convex ridge that extends along the flange portion 559 to a predetermined length. In this embodiment, multiple third bulges 555c are provided along the flange portion 559 at predetermined intervals.

[0046] In this embodiment, the third bulge 555c is formed in a mountain shape that gently bulges out toward the open end of the container body 3 in cross-section. The height of the bulge can be set arbitrarily, but when the inner lid 5 is attached to the container body 3, at least its top is formed to a height that abuts against the open end (upper end 333) of the container body 3. Note that the cross-sectional shape of the third bulge 555c is not limited to a mountain shape, but may be a semicircle, semiellipse, polygon, trapezoid, etc.

[0047] Figure 5 is a partially enlarged cross-sectional view showing the inner lid 5 attached to the cylindrical portion 33 of the container body 3. As shown in Figure 5, the clamping portion 551 of the fixing portion 55 is sandwiched between the peripheral wall portion 53 of the inner lid 5 and the cylindrical portion 33 of the container body 3. In addition, the flange portion 559 of the fixing portion 55 is locked to the upper end portion 333 of the cylindrical portion 33.

[0048] With the inner lid portion 5 attached to the cylindrical portion 33 of the container body 3, the first bulge portion 555a and the second bulge portion 555b of the clamping portion 551 are both in contact with the inner circumferential surface 331 of the cylindrical portion 33. At this time, the first bulge portion 555a and the second bulge portion 555b are both in contact with the inner circumferential surface 331 while being pressed against it.

[0049] Furthermore, with the inner lid 5 attached to the cylindrical portion 33 of the container body 3, the third bulge 555c of the flange portion 559 is in contact with the upper end portion 333 of the cylindrical portion 33. Then, with the outer lid 7 attached to the container body 3, the packing 77 of the outer lid 7 is in contact with the upper end portion 537 of the inner lid 5 and the flange portion 559. When the outer lid 7 is screwed onto the cylindrical portion 33 in this state, the packing 77 is pressed against the upper end portion 537 and the flange portion 559. As a result, the third bulge 555c provided on the lower surface of the flange portion 559 is also pressed against the upper end portion 333 of the cylindrical portion 33.

[0050] As explained above, the first bulge 555a and the second bulge 555b are pressed against the inner circumferential surface 331 of the container body 3, and the third bulge 555c is pressed against the upper end portion 333 of the container body 3, so that the sealing effect works in a triple layer, preventing the cosmetic from leaking out.

[0051] Figure 6 schematically illustrates the function of the bulging portion 555 in fixing the peripheral wall portion 53 and the fixing portion 55. As shown in Figure 6, when the inner lid portion 5 is attached to the container body 3, the first bulging portion 555a and the second bulging portion 555b of the fixing portion 55 are pressed against the inner circumferential surface 331 of the cylindrical portion 33. As a result, an external force acts on the first bulging portion 555a and the second bulging portion 555b in the direction of arrow F1, pushing them into the recess 533. Since the fixing portion 55 is made of a softer resin material than the peripheral wall portion 53, as a result of this external force, the clamped portion 551 where the first bulging portion 555a and the second bulging portion 555b are provided elastically deforms in the direction of arrow F2, being pushed outward in the region between the first convex portion 535a and the second convex portion 535b, or between the second convex portion 535b and the flange portion 559. In other words, the clamped portion 551 becomes taut in the vertical direction. This further strengthens the grip (joining) between the peripheral wall portion 53 and the clamped portion 551, and makes the connection between the peripheral wall portion 53 and the fixing portion 55 stronger.

[0052] In this regard, in an embodiment in which the first protrusion 535a and the second protrusion 535b are located at positions that coincide in the circumferential direction of the peripheral wall portion 53, a bracing force is more easily exerted in the vertical direction on the clamped portion 551 sandwiched between the first protrusion 535a and the second protrusion 535b.

[0053] <Manufacturing process> In this embodiment, the peripheral wall portion 53 and bottom portion 51 formed from the first resin material and the fixing portion 55 formed from the second resin material are integrally formed during their manufacturing process. In this embodiment, they are integrally formed by two-color molding. Specifically, a two-color molding machine equipped with two sets of injection devices and two sets of molds is used to integrally mold the peripheral wall portion 53 and bottom portion 51 by injecting the first resin material, and then integrally mold the fixing portion 55 by injecting the second resin material. Note that the molding order is not limited to this, and the peripheral wall portion 53 and bottom portion 51 may be integrally molded after the fixing portion 55 has been integrally molded. In this way, by integrally molding the peripheral wall portion 53 and the fixing portion 55 using two-color molding, the joint between them becomes strong. Note that the method for integrally molding the peripheral wall portion 53 and the fixing portion 55 is not limited to two-color molding; other molding methods that combine different resins or materials to form an integral structure, such as insert molding, may also be used.

[0054] The first protrusion 535a and the second protrusion 535b of the peripheral wall portion 53 are integrally molded so that they are positioned inside the first window portion 553a and the second window portion 553b of the clamped portion 551, respectively. Furthermore, the third protrusion 535c is integrally molded so that it is embedded in the base side of the flange portion 559. In this way, by integrally molding the peripheral wall portion 53 so that a part of it protrudes and fits inside the fixing portion 55, the adhesion (joining state) between the peripheral wall portion 53 and the fixing portion 55, which are made of different resin materials, is improved, and the fixing portion 55 is prevented from peeling off from the peripheral wall portion 53 and falling off.

[0055] <Example 1> As shown in Figure 7(a), in the inner lid portion 5 according to the modified example 1, the first bulge portion 555a and the second bulge portion 555b are formed continuously and seamlessly in the circumferential direction of the peripheral wall portion 53. Similarly, the third bulge portion 555c is also formed continuously and seamlessly along the flange portion 559. That is, the first bulge portion 555a, the second bulge portion 555b, and the third bulge portion 555c are all formed as a single annular section. By forming the first bulge portion 555a, the second bulge portion 555b, and the third bulge portion 555c continuously and seamlessly in this way, the fixing of the inner lid portion 5 and the cylindrical portion 33 is made more secure. In addition, by sealing the space between the cylindrical portion 33 and the fixing portion 55 in the circumferential direction, leakage of cosmetic material can be prevented.

[0056] Furthermore, one of the first bulge 555a, second bulge 555b, and third bulge 555c may be formed continuously without interruption, while the remaining bulges may be formed discontinuously in the circumferential direction. The combination of these continuously formed and discontinuously formed bulges can be arbitrarily set.

[0057] <Modification 2> As shown in Figure 7(b), in the modified example 2, the inner lid portion 5 has the first protrusion 535a and the second protrusion 535b formed at positions offset in the circumferential direction of the peripheral wall portion 53. Specifically, the first protrusion 535a and the second protrusion 535b are formed to appear alternately along the circumferential direction of the peripheral wall portion 53. By arranging the first protrusion 535a and the second protrusion 535b alternately along the circumferential direction of the peripheral wall portion 53 in this way, the areas where the bond between the peripheral wall portion 53 and the fixing portion 55 is strengthened are distributed in the circumferential direction, resulting in a more uniform bond over the entire circumference of the peripheral wall portion 53.

[0058] <Other variations> As another variation, the protrusion 535 and the window portion 553 described above may each be provided individually. Furthermore, multiple protrusions 535 and window portions 553 may be provided, and they may be arranged to form a single row along the circumferential direction of the peripheral wall portion 53. Furthermore, the bulge 555 described above may be provided singly, or it may be not necessary to provide such a bulge 555 at all. Furthermore, the flange portion 559 described above does not necessarily need to be provided.

[0059] The cosmetic product to be stored in the cosmetic container of the present invention may be powder foundation, as well as powders such as blush, eyeshadow, body powder, baby powder, and talcum powder.

[0060] Now, although various embodiments and modifications have been described above, these embodiments and modifications can of course be combined to form a complete system. Furthermore, this disclosure is not limited in any way to the embodiments described above, and can be implemented in various forms without departing from the gist of this disclosure. [Explanation of Symbols]

[0061] 1... Cosmetic container, 3... Container body, 5... Inner lid, 7... Outer lid, 31... Storage section, 33... Cylindrical section, 51... Bottom, 53... Peripheral wall, 55... Fixing section, 60... Fixing mechanism, 533... Recess, 535... Protrusion, 551... Clamping section, 553... Window section, 555... Bulging section, 573... Bulging section

Claims

1. A container body having an internal space for containing cosmetics and an opening that connects the internal space to the outside, An inner lid portion attached to the opening of the container body and A cosmetic container equipped with, The inner lid comprises a bottom portion having a cosmetic passage hole through which cosmetic material passes, a peripheral wall portion formed to rise from the peripheral edge of the bottom portion, and a fixing portion formed on the outer circumference of the peripheral wall portion to fix the inner lid portion to the opening of the container body. The fixing portion has a clamping portion that is sandwiched between the outer circumferential surface of the peripheral wall portion and the inner circumferential surface of the container body. The clamping portion has a plurality of windows that penetrate between the peripheral wall side and the container body side. The peripheral wall portion has a plurality of protrusions arranged inside each of the plurality of window portions. Cosmetic container.

2. The peripheral wall and bottom portions are formed of a material that is less likely to adsorb oil than the fixing portion. The cosmetic container according to feature 1.

3. The fixing portion is formed of a material that is more elastically deformable than the peripheral wall portion and the bottom portion. A cosmetic container according to feature 1 or 2.

4. The peripheral wall portion and the bottom portion are integrally molded with the fixing portion. A cosmetic container according to feature 1 or 2.

5. Multiple protrusions are arranged along the circumferential direction of the peripheral wall portion at predetermined intervals from one another. A cosmetic container according to feature 1 or 2.

6. The protrusions are arranged to form a plurality of rows along the circumferential direction of the peripheral wall. The cosmetic container according to feature 5.

7. The aforementioned protrusion comprises a row of first protrusions located further from the upper end of the peripheral wall and a row of second protrusions located closer to the upper end. The cosmetic container according to feature 6.

8. A first bulge is provided in the region of the outer circumferential surface of the fixing portion between the first protrusion and the second protrusion, which bulges in the direction of the inner circumferential surface of the container body. With the inner lid attached to the container body, the first bulge contacts the inner circumferential surface of the container body. The cosmetic container according to feature 7.

9. The fixing portion includes a flange portion that contacts the open end of the container body when the inner lid portion is attached to the container body. A cosmetic container according to feature 1 or 2.

10. A second bulge is provided in the region of the outer circumferential surface of the fixing portion between the flange portion and the second protrusion, which bulges in the direction of the inner circumferential surface of the container body. With the inner lid attached to the container body, the second bulge contacts the inner circumferential surface of the container body. The cosmetic container according to feature 9.

11. A third bulge is provided on the surface of the flange portion of the container body that contacts the container opening end, and when the inner lid is attached to the container body, the third bulge contacts the top surface of the container opening end. The cosmetic container according to feature 9.

12. A first bulge is provided in the region of the outer circumferential surface of the fixing portion between the first protrusion and the second protrusion, which bulges in the direction of the inner circumferential surface of the container body. A second bulge is provided in the region of the outer circumferential surface of the fixing portion between the flange portion and the second protrusion, which bulges in the direction of the inner circumferential surface of the container body. The first and second bulges are each provided in multiple quantities along the circumferential direction of the peripheral wall, and non-bulging regions where no bulges are formed are provided between the plurality of first bulges and between the plurality of second bulges. The cosmetic container according to feature 10.

13. The non-bulging regions between the plurality of first bulging portions and the non-bulging regions between the plurality of second bulging portions are formed at different positions in the circumferential direction of the peripheral wall portion. The cosmetic container according to feature 12.

14. A container body having an internal space for containing cosmetics and an opening that connects the internal space to the outside, An inner lid portion attached to the opening of the container body and A cosmetic container equipped with, The inner lid comprises a bottom portion having a cosmetic passage hole through which cosmetic material passes, a peripheral wall portion formed to rise from the peripheral edge of the bottom portion, and a fixing portion formed on the outer circumference of the peripheral wall portion to fix the peripheral wall portion to the opening of the container body. The fixing portion has a clamping portion that is sandwiched between the outer circumferential surface of the peripheral wall portion and the inner circumferential surface of the container body. The clamping portion has a plurality of windows that penetrate between the peripheral wall side and the container body side. The peripheral wall portion has a plurality of protrusions arranged inside each of the plurality of window portions, The plurality of protrusions are formed in two rows along the circumferential direction of the peripheral wall portion, A first bulge is provided in the region of the outer circumferential surface of the fixing portion between the two rows of protrusions, which is formed to bulge in the direction of the inner circumferential surface of the container body. With the inner lid attached to the container body, the first bulge contacts the inner circumferential surface of the container body. Cosmetic container.

15. A cosmetic container according to claim 1 or 14, The cosmetic contained in the aforementioned cosmetic container, Cosmetics that contain [the necessary components].

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