JP2017140454A - Mascara applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mascara applicator capable of uniformly applying an appropriate amount of mascara liquid to a part from bottoms to tips of eyelashes without forming any clump and having significant durability even by repetitive use.SOLUTION: An application part 3 provided at a tip of a support shaft 2 comprises: a shaft part 4 that is bent along the axial direction of a support shaft; and a plurality of substantially triangular flat-plate-like comb teeth 5, the flat plate surfaces of which are erected from both sides of the shaft part, with their facing each other, in the perpendicular direction to a virtual plane including the bent shaft part. In a cross-sectional shape perpendicular to the shaft part and the shaft part including both-side comb teeth, a mascara applicator 1 has such a shape that a cross-sectional contour 6 by the shaft part is inscribed in a substantially rhombic cross-sectional contour 7 formed by both-side comb teeth, at a vertex 8 of a pair of substantially rhombic diagonals.SELECTED DRAWING: Figure 1

Description

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

  Conventionally, a makeup act of preparing eyelashes or applying a mascara liquid has been important in making up the eyes, and a mascara applicator is one of the important cosmetic tools that influences the finish of the makeup in the eyes.

  In order to apply the mascara liquid and make up the eyelashes beautifully, it is necessary to apply the mascara liquid uniformly from the roots to the tips of the eyelashes. For this reason, the mascara applicator needs to have a shape that can enter the roots of the eyelashes and apply the mascara solution held between the comb teeth to the roots of the eyelashes.

  In addition, in order to apply the mascara liquid uniformly from the root to the tip of the eyelashes, the gap between the comb teeth is sufficiently narrowed 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.

  Furthermore, the mascara applicator is usually structured such that a support shaft is attached to the inside of a cap that is screwed into the mouth of the container body containing the mascara liquid, and the applicator is provided at the tip of the support shaft (FIG. 6). ), The mascara liquid has a relatively high viscosity to make it easier to adhere to the eyelashes, and when used, the mascara liquid is scraped off with a squirrel member equipped with a mascara applicator at the mouth of the container body. Since it is used, the mascara applicator needs to have a shape that can withstand the frictional force with the squeeze member.

  In order to apply beautiful makeup to the eyelashes in this way, an appropriate amount of mascara solution can be uniformly applied from the roots to the tips of the eyelashes without lumps, and it has sufficient durability even during repeated use. It is important to develop a shaped mascara applicator.

JP 2010-227297 A

  It is an object of the present invention to provide a mascara applicator having a shape capable of uniformly applying an appropriate amount of mascara liquid from the root of the eyelashes to the tip thereof without becoming lumpy and having sufficient durability even in repeated use. Let it be an issue.

  As a result of studies by the present inventor in order to solve the above-described problems, the application portion provided at the tip of the support shaft is divided into a shaft portion that is curved along the axial direction of the support shaft, and both side surfaces of the shaft portion. A plurality of substantially triangular flat-plate-like comb teeth whose flat surfaces face each other in a direction perpendicular to a virtual plane including a curved shaft portion, and include comb teeth on the shaft portion and both side surfaces. In the cross-sectional shape of the application part perpendicular to the shaft part, the shape of the cross-sectional shape of the shaft part is inscribed at the diagonal vertices of a set of diagonals with respect to the substantially diamond-shaped cross-sectional shape formed by comb teeth on both sides Has been found to be effective in eyelash makeup, and the present invention has been completed.

  That is, according to the present invention, the application portion provided at the tip of the support shaft is perpendicular to a virtual plane including a shaft portion that is curved along the axial direction of the support shaft and shaft portions that are curved from both side surfaces of the shaft portion. In the cross-sectional shape of the coating portion perpendicular to the shaft portion including the shaft portion and the comb teeth on both side surfaces, The mascara applicator is characterized in that the cross-sectional outer shape of the portion is in a shape inscribed at a pair of diagonal vertices of the substantially rhombus with respect to the cross-sectional outer shape of the approximately rhombus formed by comb teeth on both sides.

  Further, according to the present invention, the mascara applicator is characterized in that the shaft portion is curved in an arc shape with a predetermined curvature, and the substantially triangular plate-like flat plate surface is arranged perpendicular to the tangent line of the arc of the shaft portion. It is.

  Furthermore, the present invention is a mascara applicator characterized by having a shape of any one of a cylinder, an elliptical column, and a substantially polygonal column with a curved shaft portion.

  Furthermore, the present invention is the mascara applicator characterized in that the application part is formed by integrally molding the shaft part and the comb teeth.

  The mascara applicator of the present invention can penetrate the roots of the eyelashes and bring the roots of the comb teeth closer to the roots of the eyelashes. The liquid can be applied evenly from the root to the tip of the eyelashes to make the eyelashes beautiful.

  The substantially triangular plate-like comb teeth arranged at a predetermined interval can sufficiently hold the mascara solution between the comb teeth, and can separate each eyelash, so that from the root of the eyelash to the tip The mascara solution can be uniformly applied without being lumped.

  In the cross-sectional shape perpendicular to the shaft portion including the shaft portion and the comb teeth on both side surfaces of the application portion, the cross-section outer shape of the shaft portion is substantially the rhomboid shape formed by the comb teeth on both side surfaces. Due to the inscribed shape at the top of a pair of diagonals, when pulled out from the container body during use, the frictional resistance with the squeeze member provided at the mouth of the container body is reduced, and the wear of the coating part The deformation or wear of the application part and the squeeze member can be reduced.

External view of mascara applicator ((a) front view, (b) side view, (c) plan view, (d) AA cross-sectional view (first embodiment)) Front enlarged view of mascara applicator AA sectional drawing of a mascara applicator ((a) 2nd Embodiment, (b) 3rd Embodiment, (c) 4th Embodiment, (d) 5th Embodiment) AA sectional view of a mascara applicator ((a) 6th embodiment, (b) 7th embodiment, (c) 8th embodiment, (d) 9th embodiment, (e) No. 10 embodiments, (f) 11th embodiment) Model diagram showing how the mascara applicator is used The figure which shows the container body which stored the mascara applicator and the mascara liquid

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

  As shown in FIG. 1, the mascara applicator is composed of a support shaft (2) and an application section (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. In addition to opening the cap, the mascara solution in the container body can be applied to the eyelashes while scooping out the application part (FIG. 6).

  The application 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 way, the application portion can be applied along the hairline of the curved eyelashes, and the mascara liquid can be efficiently applied to the roots of the eyelashes.

  Further, from both side surfaces of the shaft portion (4), a plurality of comb teeth (5) having a substantially triangular flat plate shape are erected so that the flat plate surfaces face each other in a direction perpendicular to a virtual plane including the curved shaft portion. (Fig. 1). When applying mascara solution to the eyelashes, the mascara applicator should be held in the right hand when applying the mascara solution to the eyelashes of the right eye so that the field of view is not obstructed. To make a makeup action, the comb part is symmetrical on both sides of the shaft part (4) with the shaft part sandwiched so that it can be done in the same way even if it is held in either hand. A plurality of erections are erected perpendicular to a virtual plane including a shaft portion with curved teeth.

  The comb teeth (5) have a substantially triangular plate shape, and adjacent comb teeth are arranged so that the flat plate surfaces face each other. The substantially triangular plate-like comb teeth can be increased in strength because the base portion of the triangle is joined to the shaft portion (4), and a large number of comb teeth can be arranged with a reduced thickness of the comb teeth. Further, since the tips of the comb teeth are sharpened at a sharp angle, a 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) is not necessarily an isosceles triangle, and may be a triangle having different left and right sides. Further, the left and right sides are not necessarily limited to straight lines, but may be curved lines. The apex of the triangle can be appropriately rounded so as not to damage the eyelids or eyes when applying makeup, for example, the comb teeth may be semi-elliptical and have a large curvature. it can.

  Since a sufficient amount of mascara liquid can be held between the opposing flat plate surfaces of the comb teeth (5), the mascara liquid can be uniformly applied to the eyelashes without unevenness. In addition, when the shaft part (4) is placed along the edge of the eyelashes, the flat plate surface is arranged along the direction in which the eyelashes extend, so that the effect of combing the eyelashes is enhanced, and the applied mascara liquid becomes dull. It is difficult to apply uniformly to the eyelashes.

  The shape of the application part (3) is as shown in FIG. 1 (d) in a cross-sectional shape perpendicular to the shaft part including the shaft part (4) and the comb teeth (5) on both sides (cross-sectional shape taken along line AA in FIG. 1). ), The cross-sectional outer shape (6) of the shaft portion is formed with a pair of diagonals in the cross-sectional outer shape (7) of the substantially rhombic shape relative to the cross-sectional outer shape (7) of the rhombus The shape is inscribed in the vertices (8a, 8b). When the shaft portion (4) and the comb teeth (5) have such a cross-sectional shape, when the shaft portion (4) is brought close to the hairline, the root of the comb teeth (5) as shown in FIG. Can be applied close to the roots of the eyelashes, so the mascara solution that is held between the comb teeth can be applied sufficiently to the roots of the eyelashes. Can be makeup. In addition, since the shape of the shaft portion can secure a large area of the flat plate surface of the substantially triangular tabular comb teeth, a sufficient amount of the mascara solution can be retained, Can be applied to the eyelashes evenly. Further, as shown in FIG. 6, the mascara applicator usually has a support shaft (2) attached to the inside of a cap (11) screwed into the mouth of the container body (10) containing the mascara liquid. Although it has a structure with an applicator (3) at the tip of the shaft, the mascara liquid has a relatively high viscosity so that it easily adheres to the eyelashes. The excess mascara liquid is scraped off and used by a squeeze member (not shown) provided in the section. For this reason, there is a risk that the application portion of the mascara applicator may be deformed or worn out due to the frictional force with the squeeze member. Since the shape is inscribed at a pair of diagonal vertices (8) in the substantially rhombic cross-sectional outline (7), the friction with the squeeze member is reduced. It is possible to effectively suppress deformation and wear of the application part.

  The cross-sectional outer shape (6) of the shaft portion is a diagonal apex (8a) corresponding to the positions of both ends of the shorter diagonal of the two diagonals of the substantially rhombic cross-sectional outer shape (7) formed by comb teeth on both sides. 8b), and the dimensional ratio of the two diagonals of the approximately rhombus (the length of the shorter diagonal: the length of the longer diagonal) may be 5:12 to 5:16 preferable. If the length of the shorter diagonal line is too small, the amount of mascara liquid that can be held between the comb teeth will be reduced, and the bonding strength between the comb teeth and the shaft will be reduced. It becomes difficult to get into the roots of On the other hand, if the length of the longer diagonal line is too small, the amount of mascara liquid that can be held between the comb teeth decreases, and conversely if too large, it becomes difficult to pull out the mascara applicator from the mouth of the container. For this reason, the dimensional ratio of the two diagonal lines in the substantially rhombic cross-sectional outline (7) formed by the comb teeth on both sides (the length of the shorter diagonal line: the length of the longer diagonal line) is 5:12. 5:16 is preferable.

  The shaft portion (4) can be formed in an arc shape with a predetermined curvature in order to easily apply the mascara liquid to the eyelashes with the mascara applicator so as to be easily applied to the roots of the eyelashes along the hairline. The curvature of the shaft part is preferably about 45 mm in radius of curvature considering the degree of curvature of the eyelid.

  As shown in FIG. 1B, the shaft portion is curved with a predetermined curvature to form an arc shape. On the other hand, the substantially triangular plate-like comb teeth are perpendicular to the tangent line of the arc portion of the shaft portion. The inclination angle of the flat plate surface of the comb teeth changes continuously according to the inclination angle of each portion of the curved shaft portion (FIG. 2). In this way, by continuously changing the angle of the flat surface of the comb teeth, the flat surface of the comb teeth may be arranged along each of the eyelashes against the eyelashes extending radially from the eyelid. Therefore, the mascara liquid can be more smoothly applied to the eyelashes.

  The shaft portion can be molded into any shape of a curved cylinder, elliptical cylinder, or substantially polygonal cylinder. By making the shaft portion into 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 facilitated. Further, if the shaft portion is in the shape of a curved cylinder or the like, the cross-sectional outer shape (6) of the shaft portion is substantially rhombic cross-sectional shape (7) formed by comb teeth on both sides even when the application portion is molded. On the other hand, it is easy to mold into a shape inscribed at a pair of diagonal vertices (8) in the substantially rhombic cross-sectional outline (7), which is advantageous in mass production. Further, if the shaft portion is formed in such a shape, the area of the flat plate surface of the substantially triangular plate-like 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 column, and an octagonal prism, but the shaft portion has not only such a polygonal column but also a concave polygon having an angle exceeding 180 degrees as the bottom surface. It can also be a polygonal prism. Moreover, it can also be set as the substantially polygonal column which rounded the corner | angular part of the polygonal column, or curved the plane part. FIG. 4 illustrates another embodiment.

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

  As the resin material for forming the coating portion, it is preferable to use a thermoplastic resin, and for example, polybutylene terephthalate, polypropylene, polyamide (nylon), elastomer, polyester (polyethylene terephthalate), polyethylene or the like can be used.

  The application part may carry flocky hair in order to easily carry the mascara liquid and to soften the skin area.

DESCRIPTION OF SYMBOLS 1 Mascara applicator 2 Support axis | shaft 3 Application | coating part 4 Shaft part 5 Comb tooth 6 The cross-sectional outer diameter 7 of a shaft part The cross-sectional outer diameter 8 of a substantially rhombus The pair of diagonal vertices 8a in the cross-sectional outer shape of a substantially rhombus Diagonal vertex 9 Shaft tangent of shaft 10 Container body 11 Cap

Claims (4)

  The coating portion provided at the tip of the support shaft has a flat plate surface in a direction perpendicular to a virtual plane including a shaft portion that is curved along the axial direction of the support shaft and shaft portions that are curved from both side surfaces of the shaft portion. 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. A mascara applicator characterized in that it has a shape inscribed at the apexes of a pair of diagonals of the substantially rhombus with respect to the cross-sectional outline of the approximately rhombus formed by comb teeth on both sides.   2. The mascara applicator according to claim 1, wherein the shaft portion is curved in a circular arc shape with a predetermined curvature, and the substantially triangular flat-plate surface of the comb teeth is arranged perpendicular 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 shape of any one of a cylindrical column, an elliptical column, and a substantially polygonal column.   The mascara applicator according to any one of claims 1 to 3, wherein the application portion is formed by integrally molding the shaft portion and the comb teeth.

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