Cosmetic applicator
The cosmetic applicator's innovative design with a diagonally cut tip and offset axis addresses issues of rigidity and precision, allowing for precise and effective cosmetic application.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KOSE HOLDINGS CORP
- Filing Date
- 2020-07-02
- Publication Date
- 2026-06-01
AI Technical Summary
Conventional cosmetic applicators face issues such as wide tips unsuitable for fine work, insufficient rigidity, and difficulty in transmitting hand force, leading to poor application and distortion.
A cosmetic applicator design featuring a fixed portion, a rod-shaped base, a tapered portion with a diagonally cut applicator surface, and a tip offset from the base axis, with specific angles and curvatures for precise application and rigidity.
Enables detailed and even application of cosmetics to fine areas with sufficient rigidity, ensuring proper force transmission and cosmetic spreading.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to a cosmetic applicator body that is attached to a cosmetic applicator and applies cosmetics to the skin.
Background Art
[0002] Containers equipped with cosmetic applicators are conveniently used because they can apply cosmetics onto the skin without directly picking up and applying the cosmetics by hand. The application surface of the applicator body is designed in terms of shape and material so that an appropriate amount of cosmetics can be applied and a beautiful finish can be achieved.
[0003] The application surface of the applicator body is often used to apply to fine areas on various parts of the face such as the lips, eyelids, eyebrows, cheeks, and nose. Therefore, as an applicator body suitable for such fine application work, Patent Document 1 discloses an applicator with a thin-walled application part, and Patent Documents 2 and 3 disclose applicator bodies with a shape in which both sides of the tip are diagonally cut out.
[0004] However, these have problems such as the width of the tip being wide and not suitable for fine work (Patent Documents 1 and 3), or due to being thin-walled, the rigidity of the applicator body itself is insufficient (Patent Documents 1 and 2), making it difficult to appropriately transmit the force from the hand to the tip of the applicator body, or being unable to stretch the cosmetics as desired and sometimes getting distorted.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
Patent Document 2
Patent Document 3
Summary of the Invention
Problems to be Solved by the Invention
[0006] Therefore, the present invention aims to overcome the drawbacks of conventional cosmetic applicators and provide a cosmetic applicator that can neatly finish application boundaries and fine areas such as the corners of the mouth and the outer corners of the eyes, has a touch that is neither too soft nor too hard, and allows the cosmetic to spread well, resulting in a highly usable cosmetic applicator. [Means for solving the problem]
[0007] The present invention solves the above problems and is a cosmetic applicator comprising a fixed portion, a base portion extending in a rod shape from the fixed portion, and a tapered portion extending while further decreasing in diameter from the base, and having an applicator surface formed in a shape that is diagonally cut out from the side of the base to the side opposite the tapered portion.
[0008] Furthermore, the present invention is a cosmetic applicator characterized in that the tip of the applicator is offset in the direction of the side opposite to the application surface with respect to the extension of the axis of the base.
[0009] Furthermore, the present invention is a cosmetic coating body characterized in that the inclination angle of the coated surface with respect to the vertical is preferably in the range of 8 to 20°, and more preferably in the range of 10 to 20°.
[0010] Furthermore, the present invention relates to a cosmetic coating body characterized in that the radius of curvature of the tip of the coating body is in the range of 0.2 to 0.9 mm when viewed from the front.
[0011] Furthermore, the present invention is a cosmetic coating body characterized in that the angle between the coating surface of the coating body and the inclined surface of the tapered portion is in the range of 15 to 35° when viewed from the side.
[0012] Furthermore, the present invention relates to a cosmetic applicator in which the contour line of the coated surface is formed in a substantially U-shape at the base and in a substantially V-shape near the tip of the tapered portion, with the tip being bent in an arc shape. [Effects of the Invention]
[0013] The cosmetic applicator according to the present invention has an applicator surface that spans both the base and the tapered portion, thereby ensuring a sufficient area for applying a large amount of cosmetic. Furthermore, by making the tip a tapered portion with a diagonally cut notch, the tip becomes thin and pointed, making it suitable for detailed work, thus enabling proper application of delicate coatings and finishing work.
[0014] Furthermore, the cosmetic applicator according to the present invention has a tapered tip with a diagonally cut-out shape, which ensures the necessary thickness to maintain rigidity near the tip. This allows for proper transmission of hand force to the tip during application, and enables proper spreading of the cosmetic. [Brief explanation of the drawing]
[0015] [Figure 1] (a) Plan view of the cosmetic coating body according to the present invention, (b) Rear view thereof, (c) Front view thereof, (d) Side view thereof, (e) Bottom view thereof. [Figure 2] A partial cross-sectional view showing the front view and cross-sectional structure of a cosmetic container and cosmetic applicator equipped with a cosmetic applicator according to the present invention. [Figure 3] (a) Front view of a different embodiment of the cosmetic coating body according to the present invention, (b) Side view thereof. [Figure 4] (a) Front view of a different embodiment of the cosmetic coating body according to the present invention, (b) Side view thereof. [Figure 5] (a) Front view of a different embodiment of the cosmetic coating body according to the present invention, (b) Side view thereof. [Modes for carrying out the invention]
[0016] The embodiments of the cosmetic applicator of the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited in any way to these embodiments.
[0017] As shown in FIG. 2, the cosmetic applicator of the present invention is attached to the tip of a support shaft 2 that is vertically provided from a lid portion 3 that can be crowned on a container body 4 of a cosmetic container. The cosmetic container of the present embodiment is of a type that includes a squeezing portion 41 in the neck portion of the container body 4, and thereby squeezes out excess cosmetics on the applicator 1, but the mode of the cosmetic container is not limited to this. Further, the cosmetic applicator of the present invention is not limited to being attached to the lid portion 3 via the support shaft 2, and a fixing portion 11 may be attached to a separately provided gripping portion to form an independent applicator, or the fixing portion may be directly used as the gripping portion to form an independent applicator. Hereinafter, the applicator 1 of the present invention will be described in detail.
[0018] As shown in FIG. 1, the applicator 1 of the present invention includes a fixing portion 11 formed to be attachable to a support shaft 2, a base portion 12 extending from the fixing portion 11, and a tapered portion 13 further extending from the base portion 12.
[0019] The fixing portion 11 is formed in a columnar shape with a size that can be inserted into a hole portion 21 formed by opening from the tip of the support shaft 2. However, as long as the applicator 1 can be fixed to the support shaft 2, the fixing method is not limited to insertion.
[0020] A rod-shaped base portion 12 extends from the tip of the fixing portion 11. The base portion 12 of the present embodiment is formed in a columnar shape if the diagonally cut portion for forming the application surface 14 is not considered, but the shape is not limited to this, and as shown in FIGS. 3 to 5, it may be an elliptical columnar shape, a hexagonal columnar shape, or other polygonal columnar shapes. In FIGS. 4 and 5, the base portion 12 is hexagonal columnar in both cases, but the positions of its apex angles are formed to be shifted by about 30° in the circumferential direction.
[0021] A tapered portion 13 that tapers and reduces the diameter extends from the tip of the base portion 12. The tapered portion 13 of the present embodiment is formed in a conical shape if the diagonally cut portion is not considered, but the shape is not limited to this, and as shown in FIG. 3, it may be an elliptical conical shape.
[0022] In other words, the coating body 1 of the present invention is formed in a pencil shape by combining the base 12 and the tapered portion 13, if the diagonally cut portion is not considered. Here, "pencil shape" means that a tapered portion 13 that decreases in diameter extends from a cylindrical or polygonal columnar base 12 formed to the same diameter, and the contour shape along the inclined surface of the tapered portion 13 is formed to be straight. The cut formed when the base 12 is diagonally cut from the side surface to the opposite side surface of the tapered portion 13 constitutes the coating surface 14. Here, "opposite side surface" means the inclined surface of the tapered portion 13 located below the side surface of the base 12, which is the back side for any part of the side surface of the base 12. Here, "diagonally cut" means that it is not necessarily required to cut it out during the manufacturing process, as long as it is ultimately formed in a diagonally cut shape, and other manufacturing methods such as general injection molding may be used.
[0023] Thus, the applicator 1 is formed in a shape that is diagonally cut from the front side surface 121 of the base portion 12 to the back side surface 131 of the tapered portion 13, and the applicator surface 14 in the portion corresponding to the cut surface forms a continuous inclined surface that spans both the base portion 12 and the tapered portion 13. When viewed from the front, the contour line of the applicator surface 14 is generally formed in a gently sloping parabolic, approximately U-shape on the base portion 12 side, while on the tapered portion 13 side, the area near the tip portion 15 of the applicator 1 is formed in an arc-shaped, approximately V-shape. Due to the shape of the applicator surface 14, sufficient cosmetic material can be held on the base portion 12 side, and appropriate application can be made to fine areas on the tapered portion 13 side, which has a sharper shape.
[0024] Furthermore, in this embodiment, the extension of the axis of the base portion 12 is formed to intersect with the coating surface 14. In addition, the tip portion 15 of the coating body 1 is formed to be offset from the extension of the axis of the base portion 12 toward the back side surface 131 opposite to the coating surface 14. It is preferable that the tip portion 15 be formed to have a slightly rounded, arc-like shape rather than the raw, cut-off shape when it is notched at an angle.
[0025] The position of the tip portion 15 of the coating body 1 is a factor that affects the inclination angle of the coating surface 14 and the curvature of the arc of the tip portion 15. As in this embodiment, forming it so as to be offset in the direction of the back side surface 131 opposite to the coating surface 14 with respect to the extension of the axis of the base portion 12 is preferable because it optimizes the inclination angle of the coating surface 14 and the curvature of the arc of the tip portion 15.
[0026] The inclination angle θ1 of the coated surface 14 with respect to the vertical is preferably in the range of 8 to 20°, and more preferably in the range of 10 to 20°. The radius of curvature R of the tip portion 15 is preferably in the range of 0.2 to 0.8 mm, and more preferably in the range of 0.4 to 0.6 mm, when viewed from the front. Furthermore, the angle θ2 between the coated surface 14 and the inclined surface of the tapered portion 13 is preferably in the range of 15 to 35°, and more preferably in the range of 20 to 30°. Here, "inclined surface of the tapered portion 13" refers to the back side surface 131 opposite to the coated surface 14.
[0027] As described above, by forming the coating surface 14 across both the base portion 12 and the tapered portion 13, and further setting the inclination angle of the coating surface 14 and the radius of curvature of the tip portion 15 as described above, it is possible to secure an area of the coating surface 14 that can be used to apply a sufficient amount of cosmetic. In this embodiment, the coating surface 14 is formed as a flat surface, but it does not necessarily have to be perfectly flat, and may be slightly concave or convex.
[0028] Furthermore, by creating a tapered section 13 at the tip and then cutting it at an angle, the tip 15 becomes thin and pointed, making it suitable for detailed work. Therefore, delicate finishing work can be properly performed with the tip 15.
[0029] Furthermore, by creating a tapered section 13 at the tip and then cutting it at an angle, it is possible to secure the necessary thickness to maintain rigidity near the tip 15. This allows the force of the hand to be properly transmitted to the tip 15 during application, and the cosmetic product to be spread properly.
[0030] The material of the coating body 1 of the present invention is not particularly limited as long as it is a general-purpose coating body for cosmetics, but a thermoplastic resin such as TPE or TPU (thermoplastic elastomer) with high hardness is preferred. For example, polyethylene, polypropylene, polyethylene terephthalate, nylon, polyurethane, polyacrylate Lilo Plastics and rubbers such as nitrile butadiene styrene, polystyrene, polyacrylonitrile butadiene rubber, polystyrene butadiene rubber, polyisoprene, and silicone rubber, as well as elastomers such as polyester, urethane, olefin, and polycarbonate, can be used. Examples of polyester elastomers include Hytrel® G3548L, Perprene® P30B, and Perprene® P40B. Examples of urethane elastomers include Toyobo Urethane® E-3090A, Toyobo Urethane® E-3070A, and Pandex® T-8190. Examples of olefin elastomers include Surlink® 3170. Examples of polycarbonate elastomers include Pandex® T-9290.
[0031] Furthermore, applying a flocking treatment to the entire or a part of the coated body 1 is preferable because it increases the amount of cosmetic material that adheres to the coated body 1 and changes the feel of the coated area. The length of the fibers may also be partially varied; for example, the length of the fibers applied to the coated surface 14 may be different from the length of the fibers applied to the base portion 12 and the tapered portion 13. This allows for a wider range of application of cosmetic material, from small to large amounts, and also improves ease of application. The fibers used for flocking are not particularly limited as long as they are usable, but examples include nylon, polyester, acrylic, vinylon, and poly. BExamples include synthetic fibers such as polyethylene tetraphosphate, regenerated fibers such as rayon and acetate, and natural fibers such as wool, silk, cotton, and linen. Alternatively, fine particles such as natural sea sponges and cotton sponges can also be used. The fiber shape is preferably 0.5 to 2 mm in length and 0.01 to 0.1 mm in thickness, and more preferably 0.5 to 1.5 mm in length and 0.01 to 0.06 mm in thickness.
[0032] The cosmetic applicator of the present invention can be used for liquid cosmetics, oily cosmetics, powder cosmetics, etc., and is particularly suitable for items used partially, such as lip cosmetics (lipstick, lip gloss), concealer, eyebrow products, eye color, and eyeliner. Furthermore, liquid cosmetics that are directly connected to the lid are even more preferable. [Explanation of Symbols]
[0033] 1 … … coated material 2 … … Support shaft 3 … … Lid section 4 ... Container body 11 … … Fixed part 12 … … base 13 … … Tapered section 14 … … coated surface 15 … … Tip part 21 … … Hole 41... ... Strict work 121 … … Front side 131 … … Rear side θ1 … … Inclination angle of the coated surface θ2 … … Inclination angle between the coated surface and the inclined surface of the tapered section R... Radius of curvature of the tip (front view)
Claims
1. A cosmetic applicator attached to a lid that can be fitted onto the container body of a cosmetic container, comprising a fixing portion, a base portion extending in a rod shape from the fixing portion, and a tapered portion extending while further decreasing in diameter from the base, having an applicating surface formed in a shape that is diagonally cut out from the side of the base portion to the side opposite the tapered portion, and having a rounded corner at the tip of the applicator that forms an arc shape when viewed from the side, and being flocked.
2. The cosmetic applicator according to claim 1, characterized in that the tip of the applicator is offset in the direction of the side opposite to the application surface with respect to the extension of the axis of the base.
3. The cosmetic coating body according to claim 1 or 2, characterized in that the inclination angle of the coating surface with respect to the vertical direction is in the range of 8 to 20°.
4. The cosmetic coating body according to any one of claims 1 to 3, characterized in that the tip of the coating body is formed in a substantially V-shape that is bent in an arc shape when viewed from the front, and the radius of curvature of the arc when viewed from the front is in the range of 0.2 to 0.9 mm.
5. The cosmetic coating body according to any one of claims 1 to 4, characterized in that the angle between the coating surface of the coating body and the inclined surface of the tapered portion is in the range of 15 to 35° when viewed from the side.
6. The cosmetic coating body according to any one of claims 1 to 5, wherein the contour line of the coated surface is formed in a substantially U-shape on the base side and in a substantially V-shape on the tapered side, with the tip area being bent in an arc shape.