Cosmetic container and cosmetic using the same

Abstract

The present disclosure provides a cosmetic container and a cosmetic. The cosmetic container is provided with: a container main body formed with an internal space that accommodates a cosmetic, and provided with an opening portion that continuously the internal space with the outside; and a middle lid portion that is fitted to the opening portion of the container main body, wherein the middle lid portion is provided with: a bottom portion formed with a cosmetic passing hole through which a cosmetic passes; a peripheral wall portion that is formed to rise from a peripheral edge portion of the bottom portion; and a fixing portion that is formed on the outer periphery of the peripheral wall portion, and fixes the middle lid portion to the opening portion of the container main body, the fixing portion has a sandwiched portion that is sandwiched by the outer peripheral surface of the peripheral wall portion and the inner peripheral surface of the container main body, the sandwiched portion is formed with a plurality of window portions that penetrate between the peripheral wall portion side and the container main body side, and the peripheral wall portion has a plurality of convex portions that are arranged in the interiors of the plurality of window portions, respectively.

Description

Technical Field

[0001] This invention relates to a cosmetic container having a lid formed from two different resin materials. Background Technology

[0002] As a cosmetic container for holding powdered cosmetics, there is a container with a middle cover fitted at the opening of the main body. The middle cover has a hole for the cosmetics to pass through, and the entire middle cover is formed of a flexible resin material.

[0003] The applicant discovered that the inner cover, formed from the flexible resin material, deforms due to the adhesion of oil contained in the cosmetic, and thus easily detaches from the container body. Therefore, an application was filed for a container in which a component for fixing the inner cover and the container body is formed from a soft resin material, and other components of the inner cover are formed from a different hard resin material, and these components are integrally molded, thereby suppressing deformation of the inner cover (Patent Document 1).

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent No. 7413621 Summary of the Invention

[0007] The problem of the present invention is to provide a cosmetic container that can prevent the materials of the middle cover, which is formed of two different resin materials, from peeling off from each other.

[0008] This invention addresses the aforementioned problems by providing a cosmetic container comprising: a container body having an internal space for accommodating cosmetics and an opening connecting the internal space to the outside; and a middle cover fitted to the opening of the container body. The middle cover includes: a bottom having a cosmetic passage hole for cosmetics to pass through; a peripheral wall extending from the periphery of the bottom; and a fixing portion formed on the outer periphery of the peripheral wall to fix the middle cover to the opening of the container body. The fixing portion has a clamping portion clamped by the outer peripheral surface of the peripheral wall and the inner peripheral surface of the container body. The clamping portion has a plurality of windows extending between the peripheral wall side and the container body side. The peripheral wall has a plurality of protrusions disposed within each of the plurality of windows.

[0009] Here, the peripheral wall and the bottom may be formed of a material that is less prone to absorbing oil compared to the fixed part.

[0010] Alternatively, the fixing part may be formed of a material that is more elastically deformable than the peripheral wall part and the bottom part.

[0011] Alternatively, the peripheral wall portion and the bottom portion may be integrally formed with the fixing portion.

[0012] Alternatively, multiple protrusions may be arranged at predetermined intervals along the circumferential direction of the peripheral wall portion.

[0013] Alternatively, the protrusion may be configured to form a plurality of columns along the circumference of the peripheral wall portion.

[0014] Alternatively, the protrusion may have a row of first protrusions located at a position far from the upper end of the peripheral wall portion and a row of second protrusions located at a position close to the upper end portion.

[0015] Alternatively, a first bulge may be provided in the region of the outer peripheral surface of the fixing part located between the first bulge and the second bulge, protruding toward the inner peripheral surface of the container body. When the middle cover is assembled to the container body, the first bulge abuts against the inner peripheral surface of the container body.

[0016] Alternatively, the fixing part may have a flange portion that contacts the container opening end of the container body when the middle cover portion is assembled to the container body.

[0017] Alternatively, a second bulge may be provided in the region of the outer peripheral surface of the fixing part located between the flange and the second bulge, protruding toward the inner peripheral surface of the container body. When the middle cover is assembled to the container body, the second bulge abuts against the inner peripheral surface of the container body.

[0018] Alternatively, a third bulge may be provided on the surface of the flange that contacts the container opening end of the container body, protruding toward the top surface of the container opening end. When the middle cover is assembled to the container body, the third bulge abuts against the top surface of the container opening end.

[0019] Alternatively, the first bulge and the second bulge may each have a plurality of bulges along the circumferential direction of the peripheral wall, and non-bulging regions without bulges may be provided between the plurality of first bulges and between the plurality of second bulges.

[0020] Alternatively, the non-bulging regions between the plurality of first bulges and the non-bulging regions between the plurality of second bulges may be formed at different positions in the circumferential direction of the peripheral wall portion.

[0021] Invention Effects

[0022] The cosmetic container of the present invention has a middle cover portion composed of two different resin materials, which can prevent peeling between the components composed of these different resin materials. Attached Figure Description

[0023] Figure 1 This is an exploded perspective view of the container body and the middle cover of the cosmetic container that constitute this embodiment.

[0024] Figure 2 yes Figure 1 Sectional view II-II in the middle.

[0025] Figure 3 This is a side view of the middle lid portion of the cosmetic container according to this embodiment.

[0026] Figure 4 This is a top view of the middle lid of the cosmetic container according to this embodiment.

[0027] Figure 5 This is a partial cross-sectional view showing the state in which the middle cover of the cosmetic container of this embodiment is assembled into the container body.

[0028] Figure 6 This diagram schematically illustrates the function of the first bulge in the middle cover of the cosmetic container according to this embodiment.

[0029] Figure 7 (a) is a side view of the middle lid of the cosmetic container in Variation Example 1. Figure 7 (b) is a side view of the middle lid of the cosmetic container in variation 2.

[0030] Explanation of reference numerals in the attached figures

[0031] 1: Cosmetic container; 3: Container body; 5: Middle cover; 7: Outer cover; 31: Receiving part; 33: Cylindrical part; 51: Bottom; 53: Peripheral wall; 55: Fixing part; 60: Fixing mechanism; 533: Recess; 535: Protrusion; 551: Clamped part; 553: Window; 555: Protrusion. Detailed Implementation

[0032] Hereinafter, embodiments of the cosmetic container of the present invention and the lid using the cosmetic container will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited to these embodiments.

[0033] <The overall composition of cosmetic container 1>

[0034] Figure 1 This is an exploded perspective view of the cosmetic container 1 according to this embodiment. Figure 1As shown, the cosmetic container 1 includes: a container body 3, which has an internal space for accommodating cosmetic CM; a middle cover 5, which is fitted to the opening 300 of the container body 3 and can accommodate an application tool inside; and an outer cover 7 for sealing the opening 300 of the container body 3. Furthermore, the cosmetic container 1 of this embodiment includes an application tool 9 accommodated within the middle cover 5.

[0035] The detailed structure of the container body 3 will be described later. The container body 3 is formed with external dimensions that allow it to be fitted with the outer cover 7 for assembly. Furthermore, the container body 3 is provided with a threaded portion 35 for assembling the outer cover 7.

[0036] The outer cover 7 is formed as a topped cylindrical part that can be attached to the cylindrical part 33 of the container body 3. Specifically, the outer cover 7 includes a top plate portion 71 that constitutes the top plate portion of the outer cover 7 and a peripheral wall portion 73 hanging down from the periphery of the top plate portion 71. The top plate portion 71 is sized and shaped to seal the opening 300 when the outer cover 7 is assembled to the container body 3. Furthermore, a sealing member 77 made of a thin plate-shaped elastic member is provided on the back side of the top plate portion 71, that is, on the surface opposite to the opening 300 when assembled to the container body 3. Moreover, a threaded portion 75 is provided on the inner peripheral surface of the peripheral wall portion 73, which can engage with the threaded portion 35 of the cylindrical part 33.

[0037] The application tool 9 in this embodiment is a powder puff that can hold the cosmetic material CM and apply it to the face. The application tool 9 can be any application tool that can be contained inside the middle cover 5, and is not limited to a powder puff. For example, it can also be a brush or other applicator.

[0038] The following is a detailed description of each component. It should be noted that in the following description, it is assumed that they are connected via... Figure 1 The direction of the arrow shown is Figure 1 The vertical direction defines the upper and lower sides of the cosmetic container 1 in this embodiment.

[0039] <Container Body 3>

[0040] The container body 3 of this embodiment includes: a receiving portion 31 having an internal space 310 for receiving cosmetic material CM; and a cylindrical portion 33 continuously disposed from the upper part of the receiving portion 31. The cylindrical portion 33 has an opening 300 continuous with the internal space 310, through which cosmetic material CM can be filled and received into the internal space 310 of the receiving portion 31.

[0041] The cylindrical portion 33 is formed as an annular peripheral wall protruding upward from the upper end of the receiving portion 31 at a predetermined height. The space enclosed by the cylindrical portion 33 is formed into a cylindrical shape, with internal dimensions that allow the middle cover portion 5 to be inserted. Furthermore, the outer peripheral surface 335 of the cylindrical portion 33 is formed to allow the outer cover portion 7 to be fitted onto it for assembly. Moreover, a threaded portion 35 for assembling the outer cover portion 7 is provided on the outer peripheral surface 335 of the cylindrical portion 33.

[0042] <Middle Cover Part 5>

[0043] like Figure 1 As shown, the middle cover portion 5 in this embodiment is formed as a concave shape that opens upwards. Specifically, the middle cover portion 5 includes: a bottom 51; a peripheral wall portion 53, which is configured to stand upright from the periphery of the bottom 51; and a fixing portion 55, which is provided on the outer peripheral surface 531 of the peripheral wall portion 53 for fixing the middle cover portion 5 to the container body 3. When assembling the middle cover portion 5 to the container body 3, firstly, the bottom 51 is inserted into the opening 300 of the container body 3 with the bottom facing downwards. Then, the middle cover portion 5 is pressed in until the fixing portion 55 is pressed against the inner peripheral surface of the container body 3. Thus, the middle cover portion 5 is fixed to the container body 3 in a fitted state.

[0044] The bottom 51 of the middle cover portion 5 is formed to have a shape and size that are approximately the same as the opening 300 of the container body 3. With the middle cover portion 5 assembled to the container body 3, the bottom 51 is disposed within the internal space 310 of the container body 3. A hole 511 is formed through the bottom 51 to allow the cosmetic material CM to pass through. In this embodiment, multiple holes 511 are formed, and their positions are offset towards the center of the bottom 51. In this way, by forming holes 511 near the center of the bottom 51, excessive spraying of the cosmetic material CM from around the application tool 9 housed in the middle cover portion 5 can be prevented. It should be noted that the number, size, and arrangement of these holes 511 can be appropriately determined according to the characteristics of the cosmetic material CM to be contained.

[0045] In this embodiment, the peripheral wall portion 53 is configured to a height that allows the outer cover portion 7 to be closed when the coating tool 9 is housed within the middle cover portion 5. Furthermore, the peripheral wall portion 53 is configured to be approximately cylindrical, arranged along the inner peripheral surface 331 of the cylindrical portion 33 when the middle cover portion 5 is assembled to the container body 3.

[0046] Figure 2 This is section view II-II of the peripheral wall portion 53. Figure 3 This is a side view of the middle cover 5. See below for reference. Figure 2 and Figure 3 The structure of the peripheral wall portion 53 and the fixing portion 55 will be explained.

[0047] like Figure 2As shown, in the peripheral wall portion 53, a portion of the outer peripheral surface 531 of the peripheral wall portion 53 is cut off to form a recess 533 for assembling 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 51 of the middle cover portion 5. Specifically, in this embodiment, the recess 533 is formed within a range of approximately 1 / 3 of the length in the vertical direction from the upper end portion 537 to the peripheral wall portion 53. Furthermore, the portion of the peripheral wall portion 53 in which the recess 533 is formed is thinner in its radial thickness T1 than the portion in which the recess 533 is not formed has a thickness T2. In other words, the portion in which the recess 533 is formed is thin-walled compared to the other portions.

[0048] The fixing part 55 is provided on the outer peripheral surface 531 of the peripheral wall part 53 in a manner that it is embedded into the recess 533. The fixing part 55 includes: a thin plate-shaped clamping part 551 that is continuously annular along the outer peripheral surface 531 of the peripheral wall part 53; and a flange part 559 that protrudes approximately horizontally outward from the upper end of the clamping part 551. The clamping part 551 is configured to cover the outer peripheral surface 531 of the peripheral wall part 53 with a predetermined width from the upper end 537 of the outer peripheral surface 531 toward the bottom 51. Specifically, as Figure 3 As shown, in this embodiment, the fixing portion 55 is formed over a length of approximately one-third from the upper end portion 537 to the peripheral wall portion 53 in the vertical direction. That is, the clamping portion 551 of the fixing portion 55 is formed with a width (vertical length) approximately the same as that of the recess 533. Thus, the fixing portion 55 is partially formed on the outer peripheral surface 531 at a position away from the bottom 51.

[0049] As described above, the recess 533 is formed such that its length in the vertical direction is approximately the same as the length in the vertical direction of the clamped portion 551 of the fixing portion 55. Furthermore, the radial depth of the recess 533 is also formed to be approximately the same as the radial thickness of the clamped portion 551. Therefore, 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 are on the same plane. That is, the clamped portion 551 and the radially outer surface of the peripheral wall portion 53 are aligned. Thus, no step is formed between the clamped portion 551 and the outer peripheral surface 531 of the peripheral wall portion 53, thereby further improving the tightness between the outer peripheral surface 531 of the peripheral wall portion 53 and the inner peripheral surface 331 of the cylindrical portion 33.

[0050] The flange portion 559 is formed to abut against the upper end portion 333 of the cylindrical portion 33 when the middle cover portion 5 is assembled onto the container body 3. Furthermore, the flange portion 559 protrudes at least by a length approximately the same as the radial thickness of the cylindrical portion 33. Thus, the flange portion 559 is configured to cover the upper end portion 333 of the cylindrical portion 33 (see below) when the middle cover portion 5 is assembled onto the container body 3. Figure 5 ).

[0051] <Material of the middle cover 5>

[0052] Here, the materials of each part constituting the middle cover 5 will be explained.

[0053] First, the bottom 51 and the peripheral wall 53 constituting the middle cover portion 5 are formed of the same material. On the other hand, the fixing portion 55 is formed of a different material than the bottom 51 and the peripheral wall 53. To further explain, the fixing portion 55 in this embodiment is formed of a material that is more easily elastically deformable than the bottom 51 and the peripheral wall 53.

[0054] The following is a detailed description of each material. First, the bottom 51 and the peripheral wall 53 of the cover portion 5 are both integrally formed from the same first resin material. This first resin material is characterized by its low oil absorption compared to the resin material forming the fixing portion 55. The bottom 51 and the peripheral wall 53 formed from such a first resin material are less susceptible to change in response to external forces and temperature variations under normal operating conditions. The first resin material is preferably selected from polyethylene terephthalate (PET) and polycyclohexanediol terephthalate (PCT). Furthermore, the first resin material is preferably a transparent or translucent resin with light transmittance, so that the cosmetic contained in the container body 3 can be visually confirmed from the outside.

[0055] The fixing part 55 constituting the middle cover 5 is formed of a second resin material that is softer than the first resin material. Furthermore, the second resin material is a resin material capable of a certain degree of elastic deformation. Thus, by forming the fixing part 55 with a soft second resin material, the friction between the middle cover 5 and the container body 3 is increased when the middle cover 5 is assembled, resulting in a more secure fixation of the middle cover 5. This second resin material is preferably selected from polyethylene (PE), polypropylene (PP), and thermoplastic elastomers.

[0056] As explained above, the fixing part 55 is formed of a resin material that is more susceptible to the effects of oil compared to the peripheral wall part 53 and the bottom 51. However, as mentioned above, the fixing part 55 is provided on the outer peripheral surface 531 of the peripheral wall part 53, which is located relatively far from the bottom 51. Furthermore, the fixing part 55 is provided with a limited area in such a way that it only covers a portion of the outer peripheral surface 531 of the peripheral wall part 53. Thus, the fixing part 55 is located far from the internal space 310 of the container body 3, and its area is also locally limited, thereby reducing the possibility of contact with the cosmetic contained in the container body 3.

[0057] That is, the fixing part 55 is formed of a resin material that is relatively susceptible to oil, but it is specifically located in a part that is not easily accessible to the cosmetic. In addition, the peripheral wall part 53 and the bottom 51, which are easily accessible to the cosmetic, are also formed of a resin material that is relatively less susceptible to oil. As a result, as a whole, the middle cover part 5 is less prone to deformation caused by oil adhesion, and the middle cover part 5 can be prevented from falling off the container body 3.

[0058] <Fixed mechanism 60>

[0059] To suppress peeling and positional deviation of the fixing part 55 relative to the peripheral wall part 53, the middle cover part 5 of this embodiment is provided with a fixing mechanism 60. The fixing mechanism 60 is composed of a plurality of protrusions 535 provided on the peripheral wall part 53 and a plurality of windows 553 provided on the fixing part 55. By interlocking with each other, the fixing part 55 is prevented from falling off the peripheral wall part 53. That is, through these protrusions 535 and windows 553, the bonding between the first resin material of the peripheral wall part 53 and the second resin material of the fixing part 55 becomes stronger. As a result, even when a strong external force is applied to the fixing part 55 during the installation and removal of the middle cover part 5 relative to the container body 3, the fixing part 55 can be prevented from peeling off from the peripheral wall part 53 and falling off.

[0060] like Figure 2 As shown, the protrusion 535 is configured to protrude radially outward within the recess 533. In this embodiment, multiple protrusions 535 are provided at different positions in the vertical direction. Specifically, a first protrusion 535a is provided at a position farther away when viewed from the upper end 537 of the peripheral wall portion 53, and a second protrusion 535b is provided at a position closer to the upper end 537 than the first protrusion 535a. These first protrusions 535a and second protrusions 535b are formed in a manner that penetrates the fixing portion 55. That is, the top end portion 5351 of the first protrusion 535a and the second protrusion 535b is exposed from the window portion 553 toward the outer peripheral surface 531.

[0061] The window portion 553 is an opening formed by passing through the clamped portion 551 of the fixing portion 55. The window portion 553 has a window portion 553a located at a position corresponding to the first protrusion 535a of the peripheral wall portion 53 and a window portion 553b located at a position corresponding to the second protrusion 535b of the peripheral wall portion 53. The window portions 553a and 553b are respectively formed with shapes and internal dimensions that allow the first protrusion 535a and the second protrusion 535b of the peripheral wall portion 53 to be disposed inside.

[0062] The first protrusion 535a and the second protrusion 535b are shaped and have external dimensions that allow the window portions 553a and 553b of the fixing portion 55 to be inserted, respectively. In this embodiment, the protrusion 535 is formed as a generally rectangular shape extending circumferentially along the peripheral wall portion 53 when viewed from the side. Furthermore, the protrusion height (radial length) of the first protrusion 535a and the second protrusion 535b is formed to be approximately the same as the radial length of the clamped portion 551. Thus, when the clamped portion 551 is fixed to the recess 533, the radially outer surface of the clamped portion 551 is on the same plane as the top ends 5351 of the first protrusion 535a and the second protrusion 535b. That is, the clamped portion 551 and the radially outer surfaces of the first protrusion 535a and the second protrusion 535b are aligned. Thus, by reducing the height difference between the clamped portion 551 and the top portion 5351, the tightness between the outer peripheral surface 531 of the peripheral wall portion 53 and the inner peripheral surface 331 of the cylindrical portion 33 is further improved.

[0063] In addition, as will be discussed later Figure 4 As shown, the first protrusion 535a and the second protrusion 535b are generally trapezoidal when viewed from above. That is, the width (circumferential length) of the base side of the first protrusion 535a and the second protrusion 535b is larger than the width (circumferential length) of the top part 5351. As a result, the rigidity of the first protrusion 535a and the second protrusion 535b is improved. In addition, since the side surfaces of the first protrusion 535a and the second protrusion 535b are formed with inclined surfaces, the contact area with the window part 553 in this part is increased. As a result, the connection between the fixing part 55 and the peripheral wall part 53 becomes more secure.

[0064] Furthermore, near the upper end of the recess 533, a third protrusion 535c is provided, protruding 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. That is, the top end portion 5351 of the third protrusion 535c is not exposed to the outside.

[0065] The third protrusion 535c is formed such that its top end 5351 protrudes radially outward from the inner circumferential surface 331 of the cylindrical portion 33 (see reference). Figure 5 Thus, the upper end portion 333 of the cylindrical portion 33 provides stable support. Furthermore, the rigidity of the flange portion 559 is increased.

[0066] Furthermore, in the recess 533 of this embodiment, a fourth protrusion 535d is provided in the region between the first protrusion 535a and the second protrusion 535b, with a protrusion height lower than that of the first and second protrusions 535a and 535b. Additionally, a fifth protrusion 535e is provided directly below the lower surface of the third protrusion 535c. The upper end of this fifth protrusion 535e is continuously formed with the lower surface, and its lower portion is obliquely cut to form an inclined surface 5352. As a result, the wall thickness of the portion of the clamping portion 551 facing the inclined surface 5532 is maintained.

[0067] Through these fourth protrusions 535d and fifth protrusions 535e, a finer convex-concave-convex shape is formed inside the recess 533, which results in a further strengthening of the connection between the peripheral wall portion 53 and the fixing portion 55.

[0068] <Configuration of the protrusion 535 and the window 553>

[0069] Figure 4 This is a top view of the middle cover 5.

[0070] The following is for reference Figure 3 Side view of the middle cover 5 and Figure 4 The top view of the middle cover portion 5 describes the configuration of the first protrusion 535a and the second protrusion 535b, as well as the configuration of the first window portion 553a and the second window portion 553b. As described above, since the first protrusion 535a and the first window portion 553a are in a corresponding positional relationship, and the second protrusion 535b and the second window portion 553b are in a corresponding positional relationship, the protrusions 535a and the window portions 553b are configured identically.

[0071] In this embodiment, multiple first protrusions 535a and second protrusions 535b are provided at predetermined intervals along the circumferential direction of the peripheral wall portion 53. That is, the rows formed by the multiple first protrusions 535a and the rows formed by the multiple second protrusions 535b are arranged in upper and lower sections. Furthermore, these multiple first protrusions 535a and second protrusions 535b are positioned at mutually symmetrical locations along the circumferential direction of the peripheral wall portion 53. Figure 4 As shown, in this embodiment, the first protrusion 535a and the second protrusion 535b are provided at 8 equal intervals in the circumferential direction of the fixing part 55.

[0072] like Figure 4 As shown, in this embodiment, the first protrusion 535a and the second protrusion 535b are positioned opposite each other across the center of the middle cover portion 5 when viewed from above. Furthermore, since the first protrusion 535a and the second protrusion 535b are formed of a resin material that is harder than the fixing portion 55, they can resist radial movement of the middle cover portion 5 when assembled to the container body 3. As a result, radial movement of the middle cover portion 5 relative to the container body 3 is suppressed.

[0073] In this embodiment, multiple first windows 553a and second windows 553b are provided at predetermined intervals along the circumferential direction of the peripheral wall portion 53. That is, the column formed by the multiple first windows 553a and the column formed by the multiple second windows 553b are arranged as upper and lower segments. The first windows 553a and the second windows 553b are positioned at positions that are aligned with each other in the circumferential direction of the peripheral wall portion 53. Figure 4 As shown, in this embodiment, the first window portion 553a and the second window portion 553b are provided with 8 portions at approximately equal intervals in the circumferential direction of the peripheral wall portion 53.

[0074] <Drum Exit Section 555>

[0075] The following is a reference again. Figure 2 and Figure 3 The bulging part 555 will be explained.

[0076] A bulge 555 is formed in the fixing part 55. The bulge 555 includes a first bulge 555a, a second bulge 555b, and a third bulge 555c. These first bulges 555a to third bulges 555c are pressed against the container body 3, thereby achieving a sealing effect and preventing cosmetics from leaking to the outside. Hereinafter, the first bulge 555a, the second bulge 555b, and the third bulge 555c will be described in detail.

[0077] A first bulge 555a, protruding towards the inner circumferential surface 331 of the container body 3, is provided in the area between the first window 553a and the second window 553b on the surface of the clamping part 551 opposite to the inner circumferential surface 331 of the container body 3. The first bulge 555a is formed as a protrusion extending for a predetermined length along the circumferential direction of the fixing part 55. In this embodiment, a plurality of first bulges 555a are provided at predetermined intervals in the circumferential direction. There is a non-bulging region 557a between two adjacent first bulges 555a where the first bulge 555a is not formed. By providing the first bulges 555a and the non-bulging region 557a, when the middle cover 5 is assembled to the container body 3, air inside the container body 3 can escape to the outside from the non-bulging region 557a. As a result, the assembly of the middle cover 5 becomes smooth.

[0078] In this embodiment, the first bulge 555a is formed in a mountain-shaped cross-section that gently bulges out toward the inner circumferential surface 331 of the container body 3. Furthermore, the height of this bulge can be arbitrarily set, but it is formed such that, when the middle cover 5 is assembled to the container body 3, at least its top abuts against the inner circumferential surface 331 of the container body 3. It should be noted that the cross-sectional shape of the first bulge 555a is not limited to a mountain-shaped shape, and can also be semi-circular, semi-elliptical, polygonal, trapezoidal, etc.

[0079] A second bulge 555b, protruding towards the inner circumferential surface 331 of the container body 3, is provided in the area between the second window 553b and the flange 559 on the surface of the clamping portion 551 opposite to the inner circumferential surface 331 of the container body 3. The second bulge 555b is formed to extend along the circumferential direction of the fixing portion 55 with a predetermined length. In this embodiment, a plurality of second bulges 555b are provided at predetermined intervals in the circumferential direction. There is a non-bulge region 557b between two adjacent second bulges 555b where the bulge 555b is not formed. By providing this non-bulge region 557b, when the middle cover 5 is assembled to the container body 3, air inside the container body 3 can escape to the outside from the non-bulge region 557b. As a result, the assembly of the middle cover 5 becomes smooth.

[0080] In this embodiment, the second bulge 555b is formed such that its protrusion height (radial length) gradually increases from the portion immediately above the second window portion 553b toward the flange portion 559. Furthermore, a flat portion with a substantially fixed height (radial length) is formed from this height-increasing portion to the upper flange portion 559. The height of the second bulge 555b can be arbitrarily set, but it is formed such that, when the middle cover portion 5 is assembled to the container body 3, at least its flat portion abuts against the inner circumferential surface 331 of the container body 3.

[0081] In this embodiment, the non-bulging region 557a between two adjacent first bulges 555a and the non-bulging region 557b between two adjacent second bulges 555b are circumferentially offset and located at different positions. Thus, by offsetting the circumferential positions of the non-bulging regions 557a and 557b between the first bulges 555a and the second bulges 555b, leakage of cosmetic material from these non-bulging regions 557a and 557b to the outside can be prevented.

[0082] A third bulge 555c, protruding towards the open end, is provided on the lower surface 5591 of the flange portion 559, opposite the open end (upper end portion 333) of the container body 3. The third bulge 555c is formed as a protrusion extending a predetermined length along the flange portion 559. In this embodiment, a plurality of third bulges 555c are provided along the flange portion 559 at predetermined intervals.

[0083] In this embodiment, the third bulge 555c is formed in a mountain-shaped cross-section that gently bulges out toward the opening end of the container body 3. Furthermore, the height of this bulge can be arbitrarily set, but it is formed such that, when the middle cover 5 is assembled to the container body 3, at least its top abuts against the opening end (upper end 333) of the container body 3. It should be noted that the cross-sectional shape of the third bulge 555c is not limited to a mountain-shaped shape, and can also be semi-circular, semi-elliptical, polygonal, trapezoidal, etc.

[0084] Figure 5 This is a partially enlarged sectional view showing the middle cover 5 assembled into the cylindrical part 33 of the container body 3. (Example) Figure 5 As shown, the clamped portion 551 of the fixing portion 55 is clamped between the peripheral wall portion 53 of the middle cover portion 5 and the cylindrical portion 33 of the container body 3. Furthermore, the flange portion 559 of the fixing portion 55 is locked to the upper end portion 333 of the cylindrical portion 33.

[0085] With the middle cover 5 assembled onto the cylindrical portion 33 of the container body 3, the first bulge 555a and the second bulge 555b of the clamped portion 551 abut against the inner circumferential surface 331 of the cylindrical portion 33. At this time, the first bulge 555a and the second bulge 555b are both pressed against the inner circumferential surface 331 and in contact with it.

[0086] Furthermore, when the middle cover 5 is assembled to the cylindrical portion 33 of the container body 3, the third bulge 555c of the flange 559 abuts against the upper end portion 333 of the cylindrical portion 33. Also, when the outer cover 7 is assembled to the container body 3, the sealing member 77 of the outer cover 7 abuts against the upper end portion 537 and the flange 559 of the middle cover 5. In this state, when the outer cover 7 is threaded onto the cylindrical portion 33, the sealing member 77 is pressed against the upper end portion 537 and the flange 559. As a result, the third bulge 555c, located on the lower surface of the flange 559, also contacts the upper end portion 333 of the cylindrical portion 33 while being pressed against it.

[0087] 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 333 of the container body 3, which can achieve a triple sealing effect and prevent the cosmetic from leaking to the outside.

[0088] Figure 6 This diagram schematically illustrates the role of the protruding part 555 in fixing the peripheral wall part 53 and the fixing part 55. (See diagram for example.) Figure 6As shown, with the middle cover 5 assembled to the container body 3, the first bulge 555a and the second bulge 555b of the fixing part 55 are pressed against the inner circumferential surface 331 of the cylindrical part 33. Consequently, an external force in the direction of arrow F1, pressing into the recess 533, acts on the first bulge 555a and the second bulge 555b. Furthermore, since the fixing part 55 is formed of a resin material softer than the peripheral wall part 53, the result of this external force is that the clamped part 551, where the first bulge 555a and the second bulge 555b are located, elastically deforms in the direction of expansion in the direction of arrow F2 in the area between the first bulge 535a and the second bulge 535b or between the second bulge 535b and the flange part 559. That is, the clamped part 551 is in a state of upward support in the vertical direction. As a result, the engagement (joint) between the peripheral wall portion 53 and the clamped portion 551 is further strengthened, and the connection between the peripheral wall portion 53 and the fixing portion 55 becomes firm.

[0089] In this respect, in embodiments where the first protrusion 535a and the second protrusion 535b are located at the same position in the circumferential direction of the peripheral wall portion 53, the force of the clamped portion 551, which is clamped between the first protrusion 535a and the second protrusion 535b, pushing in the vertical direction is more likely to take effect.

[0090] <Manufacturing Process>

[0091] In this embodiment, the peripheral wall portion 53 and the bottom portion 51, formed of the first resin material, and the fixing portion 55, formed of the second resin material, are integrally formed in 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 inject the first resin material to form the peripheral wall portion 53 and the bottom portion 51 in one step, and to inject the second resin material to form the fixing portion 55 in a second step, thereby achieving integral molding. It should be noted that the molding order is not limited to this; the peripheral wall portion 53 and the bottom portion 51 can also be formed in a second step after the fixing portion 55 is formed in one step.

[0092] Thus, by using two-color molding to form a single piece, the connection between the peripheral wall portion 53 and the fixing portion 55 becomes firm. It should be noted that the method of forming the peripheral wall portion 53 and the fixing portion 55 into a single piece is not limited to two-color molding. Other molding methods, such as insert molding, can also be used to form a single piece by combining different resins and materials.

[0093] The first protrusion 535a and the second protrusion 535b of the peripheral wall portion 53 are integrally formed in a state where they are respectively disposed inside the first window portion 553a and the second window portion 553b of the clamped portion 551. Furthermore, the third protrusion 535c is integrally formed in a state where it is embedded in the root side of the flange portion 559. In this way, by integrally forming a portion of the peripheral wall portion 53 protruding into the interior of the fixing portion 55, the engagement (joint state) between the peripheral wall portion 53 and the fixing portion 55, which are made of different resin materials, becomes good, and it can prevent the fixing portion 55 from peeling off from the peripheral wall portion 53 and falling off.

[0094] <Variation Example 1>

[0095] like Figure 7 As shown in (a), in the middle cover portion 5 of Modified Example 1, the first bulge portion 555a and the second bulge portion 555b are formed continuously and without interruption in the circumferential direction of the peripheral wall portion 53. Similarly, the third bulge portion 555c is also formed continuously and without interruption 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 into a ring. Thus, by continuously and without interrupting the formation of the first bulge portion 555a, the second bulge portion 555b, and the third bulge portion 555c, the fixation of the middle cover portion 5 to the cylindrical portion 33 becomes reliable. Furthermore, by blocking the space between the cylindrical portion 33 and the fixing portion 55 in the entire circumferential direction, leakage of cosmetic material can be prevented.

[0096] It should be noted that any one of the first bulge 555a, the second bulge 555b, and the third bulge 555c can be formed continuously and without interruption, and the remaining bulges can be formed discontinuously in the circumferential direction. The combination of these continuously formed bulges and discontinuously formed bulges can be arbitrarily set.

[0097] <Variation Example 2>

[0098] like Figure 7 As shown in (b), in the middle cover portion 5 of Modified Example 2, the first protrusion 535a and the second protrusion 535b are formed at staggered positions in the circumferential direction of the peripheral wall portion 53. Specifically, the first protrusion 535a and the second protrusion 535b are formed to alternately appear along the circumferential direction of the peripheral wall portion 53. In this way, by the alternating arrangement of the first protrusion 535a and the second protrusion 535b along the circumferential direction of the peripheral wall portion 53, the portion where the connection between the peripheral wall portion 53 and the fixing portion 55 is strengthened is dispersed in the circumferential direction, achieving a more uniform connection throughout the entire circumference of the peripheral wall portion 53.

[0099] <Other variations>

[0100] As another variation, the protrusion 535 and window 553 described above can also be set as a single unit.

[0101] In addition, multiple protrusions 535 and windows 553 may be provided, which are configured to form a single column along the circumference of the peripheral wall portion 53.

[0102] Furthermore, the bulge 555 described above can also be a single unit. Alternatively, the bulge 555 can be omitted.

[0103] Alternatively, the flange portion 559 described above may not be provided.

[0104] The cosmetics contained in the cosmetic container of the present invention can be, in addition to powder foundation, blush, eyeshadow, body powder, baby powder, prickly heat powder, and other powders.

[0105] Thus, although various implementation methods and modifications have been described above, these implementation methods and modifications can of course be combined with each other to form a configuration.

[0106] Furthermore, the present invention is not limited in any way by the above embodiments and can be implemented in various ways without departing from the spirit of this disclosure.

Claims

1. A cosmetic container, comprising: The container body forms an internal space for containing cosmetics and has an opening that makes the internal space continuous with the outside; and The middle cover is fitted to the opening of the container body, wherein... The middle cover includes: a bottom portion having a cosmetic passage hole for cosmetic to pass through; a peripheral wall portion that rises from the periphery of the bottom portion; and a fixing portion formed on the outer periphery of the peripheral wall portion to fix the middle cover portion to the opening of the container body. The fixing part has a clamping part that is clamped by the outer peripheral surface of the peripheral wall part and the inner peripheral surface of the container body. The clamped portion has multiple windows that extend between the peripheral wall side and the container body side. The peripheral wall portion has a plurality of protrusions disposed inside each of the plurality of windows.

2. The cosmetic container according to claim 1, characterized in that, The peripheral wall and the bottom are formed of a material that is less prone to absorbing oil compared to the fixed part.

3. The cosmetic container according to claim 1 or 2, characterized in that, The fixing part is formed of a material that is more elastically deformable than the peripheral wall part and the bottom part.

4. The cosmetic container according to claim 1 or 2, characterized in that, The peripheral wall and the bottom are integrally formed with the fixing part.

5. The cosmetic container according to claim 1 or 2, characterized in that, The protrusions are arranged in a plurality of spaces spaced apart from each other along the circumference of the peripheral wall portion.

6. The cosmetic container according to claim 5, characterized in that, The protrusions are configured to form multiple columns along the circumference of the peripheral wall portion.

7. The cosmetic container according to claim 6, characterized in that, The protrusion has a row of first protrusions located at a position far from the upper end of the peripheral wall portion and a row of second protrusions located at a position close to the upper end portion.

8. The cosmetic container according to claim 7, characterized in that, A first bulge is provided on the outer peripheral surface of the fixing part, located between the first bulge and the second bulge, protruding toward the inner peripheral surface of the container body. With the middle cover assembled onto the container body, the first bulge abuts against the inner circumferential surface of the container body.

9. The cosmetic container according to claim 1 or 2, characterized in that, The fixing part has a flange portion that contacts the container opening end of the container body when the middle cover portion is assembled to the container body.

10. The cosmetic container according to claim 9, characterized in that, A second bulge is provided on the outer peripheral surface of the fixing part, located between the flange and the second bulge, protruding toward the inner peripheral surface of the container body. With the middle cover assembled onto the container body, the second bulge abuts against the inner circumferential surface of the container body.

11. The cosmetic container according to claim 9, characterized in that, The flange portion has a third bulge that protrudes towards the top surface of the container opening on the surface that contacts the container opening of the container body. When the middle cover portion is assembled to the container body, the third bulge abuts against the top surface of the container opening.

12. The cosmetic container according to claim 10, characterized in that, A first bulge is provided on the outer peripheral surface of the fixing part, located between the first bulge and the second bulge, protruding toward the inner peripheral surface of the container body. A second bulge is provided on the outer peripheral surface of the fixing part, located between the flange and the second bulge, protruding toward the inner peripheral surface of the container body. The first bulge and the second bulge are provided in multiple directions along the circumference of the peripheral wall, and there are non-bulging areas where no bulge is formed between the multiple first bulges and between the multiple second bulges.

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

14. A cosmetic container, comprising: The container body forms an internal space for containing cosmetics and has an opening that makes the internal space continuous with the outside; and The middle cover is fitted to the opening of the container body, wherein... The middle cover portion includes: a bottom portion having a cosmetic passage hole for cosmetic to pass through; a peripheral wall portion that extends from the periphery of the bottom portion; and a fixing portion formed on the outer periphery of the peripheral wall portion to fix the peripheral wall portion to the opening of the container body. The fixing part has a clamping part that is clamped by the outer peripheral surface of the peripheral wall part and the inner peripheral surface of the container body. The clamped portion has multiple windows that extend between the peripheral wall side and the container body side. The peripheral wall portion has multiple protrusions disposed 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. The fixing part has a first bulge in the region of its outer peripheral surface located between the two rows of protrusions. The bulge is formed to protrude toward the inner peripheral surface of the container body. With the middle cover assembled onto the container body, the first bulge abuts against the inner circumferential surface of the container body.

15. A cosmetic product having: The cosmetic container as described in claim 1 or 14; and Cosmetic materials, contained within the cosmetic material container.

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