JP6706592B2 - Mascara applicator - Google Patents

Description

The present invention relates to a mascara applicator for applying mascara liquid to eyelashes.

2. Description of the Related Art Conventionally, a cosmetic action of adjusting eyelashes or applying a mascara liquid is important for making up the eye area, and a mascara applicator is one of the important makeup tools that determines the finish of makeup at the eye area.

In order to apply the mascara liquid and make up the eyelashes beautifully, it is necessary to apply the mascara liquid uniformly from the root to the tip of the eyelash. For this reason, the mascara applicator needs to have a shape that allows the mascara liquid to enter the base of the eyelashes and apply the mascara liquid held between the comb teeth to the base of the eyelashes.

Also, in order to apply the mascara liquid evenly from the root to the tip of the eyelashes without forming lumps (mascara lumps), the distance between the comb teeth should be narrow enough so that the eyelashes can be combed. It is also necessary to have a comb-teeth shape that can hold a large amount of mascara liquid.

Further, the mascara applicator usually has a structure in which a support shaft is attached to the inside of a cap that is screwed into the mouth of a container body containing the mascara liquid, and the application part is provided at the tip of the support shaft (see FIG. 6). ), the mascara liquid has a relatively high viscosity so that it easily adheres to the eyelashes, and when in use, the mascara applicator is scraped off with an energizing member provided at the mouth of the container body. Since it is used, the mascara applicator also needs to be shaped so as to withstand the frictional force with the claw member.

In this way, in order to apply a beautiful makeup to the eyelashes, an appropriate amount of mascara liquid can be applied evenly from the root to the tip of the eyelashes without lumps, and has sufficient durability even after repeated use. It is important to develop shaped mascara applicators.

JP, 2010-227297, A

The present invention provides a mascara applicator that can apply an appropriate amount of mascara liquid evenly from the root to the tip of the eyelashes without lumps, and has sufficient durability even in repeated use. It is an issue.

As a result of the inventors' study to solve the above-mentioned problems, as a result, the coating portion provided at the tip of the support shaft is provided with a shaft portion that curves along the axial direction of the support shaft and both side surfaces of the shaft portion. A plurality of comb teeth in a substantially triangular flat plate shape in which flat plate surfaces face each other in a direction perpendicular to an imaginary plane including a curved shaft portion, and the shaft portion and comb teeth on both side surfaces are included. In the cross-sectional shape of the coating portion perpendicular to the shaft portion, the cross-sectional outer shape of the shaft portion is inscribed at a pair of diagonal apexes of the substantially rhombic cross-sectional outer shape formed by the comb teeth on both side surfaces. It was found that the above is effective in the makeup of eyelashes, and has completed the present invention.

That is, according to the present invention, the coating portion provided at the tip of the support shaft is a shaft portion that curves along the axial direction of the support shaft (inserts a curved center shaft into a through hole along the longitudinal direction and bends by rotation of the center shaft). and excluding) the deformable and the shaft portion, in a direction perpendicular to the imaginary plane including a shaft portion which is curved from opposite sides of the shaft portion, and multiple comb flat surface you stand facing each other The comb tooth is a substantially triangular flat plate having a uniform thickness, and the cross-sectional shape of the shaft portion and the coating portion perpendicular to the shaft portion including the comb teeth on both sides has two diagonal lengths. A mascara applicator characterized by having a substantially rhombic shape with a ratio of 5:12 to 5:16, and having a cross-sectional outer shape of the shaft portion inscribed at a pair of diagonal apexes of the substantially rhombic shape. ..

Further, the present invention is characterized in that the shaft portion is curved in an arc shape with a predetermined curvature, and the flat plate surfaces of the substantially triangular flat plate-shaped comb teeth are arranged perpendicularly to the tangent line of the arc portion of the shaft portion. Is.

Furthermore, the present invention is the mascara applicator, characterized in that the shaft portion is curved and has any one of a cylindrical shape, an elliptic cylindrical shape, and a substantially polygonal cylindrical shape.

Further, the present invention is the mascara applicator, wherein the application part is formed by integrally molding the shaft part and the comb teeth.

The mascara applicator of the present invention can enter the root of the eyelashes and bring the roots of the comb teeth close to the roots of the eyelashes, so that the mascara liquid held between the comb teeth can be sufficiently applied to the roots of the eyelashes. By applying the liquid evenly from the root to the tip of the eyelash, the eyelash can be beautifully applied.

The comb teeth in the shape of a substantially triangular flat plate arranged at a predetermined interval can hold sufficient mascara liquid between the comb teeth and can separate each eyelash individually, so that from the root to the tip of the eyelash. The mascara liquid can be applied uniformly without lumps.

In the cross-sectional shape of the application portion perpendicular to the shaft portion including the shaft portion and the comb teeth on both side surfaces, the cross-sectional outer shape of the shaft portion is substantially rhombic with respect to the substantially rhombic cross-sectional outer shape formed by the comb teeth on both side surfaces. Due to the inscribed shape at a pair of diagonal vertices, when it is pulled out from the container body during use, it reduces the frictional resistance with the squeeze member provided at the mouth of the container body and wears the coating part. It is possible to reduce the deformation and wear of the coating part and the squeegee member by reducing the amount.

Appearance of mascara applicator ((a) front view, (b) side view, (c) plan view, (d) A-A sectional view (first embodiment)) Front enlarged view of mascara applicator AA sectional view of the mascara applicator ((a) second embodiment, (b) third embodiment, (c) fourth embodiment, (d) fifth embodiment) AA sectional view of the mascara applicator ((a) sixth embodiment, (b) seventh embodiment, (c) eighth embodiment, (d) ninth embodiment, (e) second) 10th embodiment, (f) 11th embodiment) Model diagram showing the usage of the mascara applicator Figure showing a container body containing a mascara applicator and a mascara liquid

The cosmetic brush of the present invention will be described in detail below.

As shown in FIG. 1, the mascara applicator includes a support shaft (2) and an application part (3) provided at the tip of the support shaft. The tip of the support shaft (2) opposite to the coating part (3) is fixed inside the cap (11) that is screwed into the mouth of the container body (10) containing the mascara liquid, and is in use. With the opening of the cap, the eyelashes can be applied while scooping the mascara liquid in the container body at the application part (Fig. 6).

The coating part (3) is composed of a shaft part (4) and comb teeth (5), and the shaft part (4) is curved along the axial direction of the support shaft (2) (FIG. 1). By curving the shaft portion (4) in this manner, the application portion can be applied along the curved hairline of the eyelash, and the mascara liquid can be efficiently applied to the base of the eyelash.

Further, a plurality of substantially triangular flat plate-like comb teeth (5) are erected from both side surfaces of the shaft portion (4) in a direction perpendicular to an imaginary plane including the curved shaft portion so that the flat plate surfaces face each other. (Fig. 1). When applying mascara liquid to the eyelashes, hold the mascara applicator in your right hand when applying the mascara liquid to the eyelashes of the right eye, and use the mascara applicator in the left hand when applying to the eyelashes of the left eye, so as not to obstruct the view. In order to carry out makeup action by holding it on both sides of the shaft part (4), a comb with a symmetrical shape with the shaft part sandwiched so that you can carry out the same makeup action with either hand A plurality of teeth are erected perpendicularly to an imaginary plane including a curved shaft portion.

The comb teeth (5) have a substantially triangular flat plate shape, and adjacent comb teeth are arranged so that their flat plate surfaces face each other. The substantially triangular flat plate-shaped comb teeth can increase the strength because the bottom part of the triangle is joined to the shaft portion (4), and the comb teeth can be thinned and arranged in a large number. Further, since the tips of the comb teeth are sharply pointed, fine makeup operation is possible, and an excellent makeup finish can be obtained. The shape of the substantially triangular flat plate of the comb teeth (5) does not necessarily have to be an isosceles triangle, but may be a triangular shape in which the left and right sides have different lengths. Further, the left and right sides are not necessarily limited to straight lines and may be curved lines. The vertices of the triangle can be appropriately rounded so as not to damage the eyelids and eyes when applying makeup.For example, the comb teeth can be semi-elliptical to have a large curvature. it can.

Since a sufficient amount of mascara liquid can be held between the opposing flat surfaces of the comb teeth (5), the mascara liquid can be evenly applied to the eyelashes. Also, when the shaft part (4) is placed along the hairline of the eyelashes, the flat plate surface is arranged along the direction in which the eyelashes extend, so the effect of combing the eyelashes is enhanced and the applied mascara liquid becomes lumpy. It is difficult and can be applied evenly to the eyelashes.

The shape of the coating part (3) is as shown in FIG. 1(d) in a sectional shape perpendicular to the shaft part including the shaft part (4) and the comb teeth (5) on both side surfaces (cross-sectional shape taken along the line AA in FIG. 1). ), the cross-sectional outline (6) of the shaft portion is a set of diagonals in the substantially diamond-shaped cross-sectional outline (7) with respect to the substantially diamond-shaped cross-sectional outline (7) formed by the comb teeth on both sides. It is characterized in that it is inscribed at the vertices (8a, 8b) of. By making the shaft part (4) and the comb teeth (5) have such a cross-sectional shape, when the shaft part (4) is brought close to the hairline of the eyelash, as shown in FIG. Can be brought close to the base of the eyelashes, so the mascara liquid held between the comb teeth can be sufficiently applied to the base of the eyelashes, and the mascara liquid is evenly applied from the root part of the eyelashes to the tip to make the eyelashes beautiful. You can put on makeup. Moreover, since such a shape of the shaft portion can secure a large area of the flat plate surface of the comb tooth having a substantially triangular flat plate shape of the comb tooth, it is possible to hold a sufficient amount of the mascara liquid and It can be applied evenly to the eyelashes. Further, as shown in FIG. 6, a mascara applicator usually has a support shaft (2) attached to the inside of a cap (11) that is screwed into the mouth of a container body (10) containing a mascara liquid. Although the structure has an application part (3) at the tip of the shaft, the mascara liquid has a relatively high viscosity so that it easily adheres to the eyelashes. Excess mascara liquid is scraped off and used by a pulling member (not shown) provided in the section. Therefore, there is a risk that the application portion of the mascara applicator may be deformed or worn due to the frictional force with the claw member. However, in the mascara applicator of the present invention, the cross-sectional outer shape (6) of the shaft portion has comb teeth on both sides. Since it has an inscribed shape at a pair of diagonal apexes (8) in the substantially rhombic cross-sectional outer shape (7) formed by the above, it reduces friction with the sea bass member. Therefore, it is possible to effectively suppress the deformation and wear of the coating part.

The cross-sectional outer shape (6) of the shaft portion has a diagonal apex (8a) corresponding to both end positions of the shorter diagonal line of the two diagonal lines of the substantially diamond-shaped cross-sectional outer shape (7) formed by comb teeth on both sides. , 8b) is preferably inscribed, and the dimensional ratio of the two substantially diamond-shaped diagonal lines (the length of the shorter diagonal line: the length of the longer diagonal line) is 5:12 to 5:16. preferable. If the length of the shorter diagonal is too small, the amount of mascara liquid that can be held between the comb teeth will decrease, and the bonding strength between the comb teeth and the shaft will decrease, while if it is too large, the eyelashes of the comb teeth will be reduced. It is difficult to get into the root of. On the other hand, if the length of the longer diagonal is too small, the amount of mascara liquid that can be held between the comb teeth becomes small, and if it is too large, it becomes difficult to pull out the mascara applicator from the mouth of the container. Therefore, the dimensional ratio of the two diagonal lines (shorter diagonal length: longer diagonal length) in the substantially diamond-shaped cross-sectional outer shape (7) formed by the comb teeth on both sides is 5:12. It is preferably 5:16.

When the mascara applicator applies the mascara liquid to the eyelashes, the shaft portion (4) can be formed in an arc shape with a predetermined curvature so that it can be easily applied to the base of the eyelashes along the hairline of the eyelashes. The curvature of the shaft portion is preferably about 45 mm in consideration of the degree of curvature of the eyelids.

As shown in Fig. 1(b), the shaft portion is curved with a predetermined curvature to form an arc shape, while the substantially triangular flat plate-shaped comb teeth are such that each flat plate surface is perpendicular to the tangent to the arc of the shaft portion. And the inclination angle of the flat plate surface of the comb teeth continuously changes according to the inclination angle of each part of the curved shaft portion (FIG. 2). By continuously changing the angle of the flat surfaces of the comb teeth in this manner, it is possible to arrange the flat surfaces of the comb teeth along the individual eyelashes with respect to the eyelashes that radially extend from the eyelids. Therefore, the mascara liquid can be applied to the eyelashes more smoothly.

The shaft portion can be molded into any of a curved columnar shape, an elliptic cylindrical shape, and a substantially polygonal cylindrical shape. By making the shaft portion have such a shape, the bending strength of the shaft portion is improved and the rigidity of the application portion is increased, so that the makeup operation is easily performed. Further, if the shaft portion has a shape such as a curved columnar shape, the cross-sectional outer shape (6) of the shaft portion is formed into a substantially rhombic cross-sectional outer shape (7) formed by comb teeth on both sides even when molding the coating portion. On the other hand, it is easy to form into a shape inscribed at a pair of diagonal apexes (8) in the substantially diamond-shaped cross-sectional outer shape (7), which is advantageous in mass production. Further, by forming the shaft portion in such a shape, the area of the flat plate surface of the substantially triangular flat plate-shaped comb teeth can be increased, and a sufficient amount of mascara liquid can be held between the comb teeth. ..

FIG. 3 shows an embodiment in which the shaft portion is a quadrangular prism, a hexagonal prism, and an octagonal prism, but the shaft portion is not limited to such a polygonal prism, and the bottom surface is a concave polygon having an angle exceeding 180 degrees. It can also be a polygonal prism. Further, it is also possible to make the corners of the polygonal prism round, or to make it a substantially polygonal prism such that the planar portion is curved. FIG. 4 illustrates another embodiment.

The coating part (3) can be formed by integrally molding the shaft part (4) and the comb teeth (5). If the shaft part and the comb teeth are made of resin and integrally molded using a mold, the strength of the coating part is improved, the durability of the mascara applicator is improved, and time and labor are required for mass-producing the coating part. It can be dramatically reduced.

A thermoplastic resin is preferably used as the resin material for forming the coating portion, and for example, polybutylene terephthalate, polypropylene, polyamide (nylon), elastomer, polyester (polyethylene terephthalate), polyethylene and the like can be used.

The application part may carry a mascara liquid easily, and may be flocked with flocked hair in order to soften the skin contact.

DESCRIPTION OF SYMBOLS 1 Mascara applicator 2 Support shaft 3 Application part 4 Shaft part 5 Comb teeth 6 Shaft section outer diameter 7 Approximately rhombus cross-section outer diameter 8 A set of diagonal vertices 8a in diagonal rhombus cross-sectional outer shape Diagonal vertex 9 Tangent line of the arc of the shaft 10 Container body 11 Cap

Claims (4)

The coating portion provided at the tip of the support shaft is a shaft portion that curves along the axial direction of the support shaft (a shaft that is capable of being curved and deformed by inserting a curved center shaft into a through hole along the longitudinal direction and rotating the center shaft). and excluding parts), in a direction perpendicular to a virtual plane including an axis portion that is curved from both sides of the shaft portion, and multiple comb you upright flat surface opposite to each other, consists, comb The teeth have a substantially triangular flat plate shape with a uniform thickness, and the cross-sectional shape of the shaft portion and the coating portion perpendicular to the shaft portion including the comb teeth on both sides have a length ratio of two diagonals of 5:12. The mascara applicator is characterized in that the cross-sectional outer shape of the shaft portion is inscribed at a pair of diagonal vertices of the substantially rhombic shape. The mascara applicator according to claim 1, wherein the shaft portion is curved in a circular arc shape with a predetermined curvature, and the flat plate surfaces of the substantially triangular flat plate-shaped comb teeth are arranged perpendicularly to the tangent line of the circular arc of the shaft portion. .. The mascara applicator according to claim 1 or 2, wherein the shaft portion has a curved, columnar, elliptic, or substantially polygonal shape. The mascara applicator according to any one of claims 1 to 3, wherein the application part is formed by integrally molding the shaft part and the comb teeth.

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