JP7118819B2 - cosmetic applicator - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cosmetic applicator that can always apply cosmetics with a constant load.

In the cosmetics industry in recent years, as symptoms such as vitiligo caused by Rhododenol have been recognized, interest in continuous use tests and layering tests of cosmetics has increased. In tests for measuring , it is widely practiced to spread the cosmetic material to be tested with a finger or with the tip of a pipette or a spatula.

However, according to these conventional coating methods, it is difficult to always apply a constant load, so it is difficult to obtain a quantitative coating film with high reproducibility.

In this respect, Patent Literature 1 discloses a method in which a stick-shaped cosmetic is attached to a device that reciprocates in a horizontal direction, and is applied to an object to be coated while applying a constant pressure and gradually increasing the coating time interval. there is

However, in order to implement such a stick-shaped cosmetic evaluation method, first, a stick-shaped cosmetic is attached to a device that moves in a horizontal direction, and a large-scale device capable of applying a constant pressure to the stick-shaped cosmetic is prepared. was necessary.

Furthermore, in the case of cosmetics that are applied with the tip of a finger, experimental methods of applying with a pipette tip, etc., cannot reproduce the friction caused by the finger, and even with the method of applying with a finger, the sample is applied with a rubber band. Since the hands are protected by gloves, etc., it was difficult to reproduce the friction caused by fingerprints and obtain a state close to the actual makeup film.

JP 2011-99811

Therefore, the present invention overcomes such drawbacks of conventional cosmetic applicators, does not require a large-scale device, can easily obtain a quantitative coating film with high reproducibility, and can be used when applying with a fingerprint. An object of the present invention is to provide a cosmetic applicator capable of obtaining a state closer to an actual cosmetic film by reproducing friction.

The present invention is intended to solve the above problems, and includes a handle portion formed in a hollow cylindrical shape having a predetermined length, and a handle portion inserted through the hollow portion of the handle portion. a shaft projecting outward and attached slidably in the axial direction with a constant width with respect to the handle; and a weight detachably attached to a portion of the shaft.

Further, the present invention is a cosmetic applicator, wherein grooves imitating a human fingerprint pattern are formed on the application surface of the applicator.

The present invention is also a cosmetic applicator, wherein one or more weights are detachably attached to the shaft.

The cosmetic applicator according to the present invention applies a constant load to the applicator attached to the tip of the shaft by attaching a weight to the shaft which is slidably attached to the handle in the axial direction with a constant width. It becomes possible to apply the cosmetic while it is applied, and a quantitative coating film can be obtained with high reproducibility.

In the cosmetic applicator according to the present invention, the applicator surface of the applicator is provided with grooves imitating a human fingerprint pattern. A state close to a membrane can be obtained.

In the cosmetic applicator according to the present invention, one or more weights are detachably attached to the shaft, and the load can be adjusted by the number of weights.

(a) A front view of the cosmetic applicator according to the present invention, (b) a plan view of the same, and (c) a bottom view of the same (a) A front view of the tip of the cosmetic applicator according to the present invention, (b) a bottom view of the same (a) A front view of a front tip in a different embodiment of the cosmetic applicator according to the present invention, (b) a bottom view of the same FIG. 4 is a plan view of weights in different embodiments of the cosmetic applicator according to the present invention;

EMBODIMENT OF THE INVENTION Hereinafter, the embodiment of the cosmetics applicator of this invention is concretely described based on drawing. In addition, this invention is not restricted at all by these embodiments.

The cosmetic applicator of the present invention comprises a handle 1 formed in the shape of a hollow cylinder having a predetermined length, and a bar-like member attached to the handle 1 so as to be slidable in the axial direction with a constant width. A shaft 2, an applicator 3 attached to the tip of the shaft 2, and a weight 4 detachably attached to a part of the shaft 2 are provided. Each member will be described in detail below.

The handle portion 1 is formed in a cylindrical shape having a predetermined length and having a hollow portion drilled in the axial direction. ing. Regarding the shape of the handle 1, other shapes such as a columnar shape may be used, but it is preferable to use a prismatic shape so that the front surface of the cosmetic applicator can be easily recognized during use. The size of the handle portion 1 can be determined arbitrarily, but it is preferable to form it in a size that is easy to hold with fingers, specifically a thickness of 10 to 20 mm and a total length of 60 to 100 mm.

A rod-shaped shaft 2 longer than at least the handle 1 is inserted through the hollow portion of the handle 1. As shown in FIG. installed so as to protrude from the The dimensions of the shaft 2 can be determined arbitrarily, but at least its total length is longer than the total length of the handle portion 1, and with the applicator portion 3 and the weight 4 attached to both ends thereof, the shaft 2 is constant in the axial direction. It is preferable that there is enough room for sliding in the width, and specifically, it is preferable that the total length is about 150 mm to 200 mm.

The shaft 2 is attached to the handle portion 1 so as to be slidable in the axial direction with a constant width and to be axially unrotatable with respect to the handle portion 1 . As for axial sliding, it is desirable to reduce the frictional resistance between the handle portion 1 and the shaft 2 as much as possible. As means for preventing rotation of the shaft, known techniques such as ball splines, ball sliders, ball bushings, linear bushings, etc., having anti-rotation mechanisms can be employed.

An applicator 3 is provided at the tip of the shaft 2 . The applicator 3 in this embodiment comprises a base 32 for attaching the applicator 3 to the tip of the shaft 2 and a tip 31 attached to the base 32 . The base portion 32 has a plate-like portion that is square in plan view at the lower end of a cylindrical body into which the tip of the shaft 2 can be inserted, and a screw portion 321 for fixing the shaft 2 inserted into the body. Prepare.

A distal tip 31 is attached to the bottom surface of the plate-like portion of the base portion 32 . As shown in FIG. 2, the distal tip 31 includes a pedestal portion 311 which is formed to have substantially the same square shape as the plate-like portion of the base portion 32 in a plan view, and a substantially bowl-shaped expansion projecting downward from the pedestal portion 311 . It has a projecting portion 312 and a planar coating surface 313 at its tip. Forming the pedestal portion 311 of the distal tip 31 in a square shape as in this embodiment is preferable because the front of the cosmetic applicator can be easily recognized during use.

The shape of the bulging portion 312 is not particularly limited to that of this embodiment, but by forming it into a substantially bowl-like shape as in this embodiment, the cosmetic is spread between the application surface 313 and the corners of the bulging portion 312 during application. This is preferable because the cosmetic is properly taken in under the coating surface 313 without being scraped off.

The application surface 313 is preferably formed in a substantially circular shape when viewed from the bottom, and preferably has a diameter of 4 to 15 mm. Furthermore, a plurality of grooves 314 imitating a human fingerprint pattern are formed on the surface of the coating surface 313 . The grooves 314 may have a geometric pattern that can reproduce the frictional resistance of applying cosmetics with a human finger, and in this embodiment, a plurality of linear grooves are provided in parallel.

The tip 31 is preferably made of an elastic material in order to reproduce application by a finger. Specific examples include natural rubber, synthetic rubber, silicone rubber, urethane rubber, and fluororubber, but are limited to these. not to be Furthermore, those having excellent chemical resistance are preferable in view of their uses.

In addition, a plurality of types of distal tips 31 may be prepared and exchangeable according to the contents of the test. For example, Figures 2 and 3 show two distal tips 3, 3' that are interchangeable. These distal tips have different diameters of coating surfaces 313 and 313'. Specifically, the coating surface 313 of the distal tip 3 is formed with a diameter of 5 mm, and the coating surface 313' of the distal tip 3' is formed with a diameter of 9 mm. . If the distal tip 31 is replaceable, the pedestal 311 portion of the distal tip 31 may be fixed to the plate-like portion of the base 32 by double-sided tape or other detachable means. In this embodiment, the distal tip 31 is attached to the shaft 2 via the base portion 32, but the distal tip 31 may be attached directly to the shaft 2 without the base portion 32 therebetween. and the base portion 32 may be integrally formed, and the integrally formed application portion 3 may be fixed to the shaft 2 or may be detachably attached.

One or more weights 4 are detachably attached to the rear end of the shaft 2 . The weight 4 of this embodiment is formed in an annular shape having a hole 41 at the center through which the shaft 2 can be inserted, and a threaded portion for fixing the weight 4 to the shaft 2 while the shaft 2 is inserted. 42.

One or a plurality of such weights 4 can be attached to the shaft 2 to adjust the load. For example, if each weight 4 is 20 g, a load of 20 g×n can be applied according to the number n of weights 4 . Strictly speaking, in addition to the load of the weight 4×n, the weight of the shaft 2 and the applied portion 3 attached to the shaft 2 is also loaded.

The handle 1 is axially slidable between the applicator 3 attached to the shaft 2 and the weight 4. In this embodiment, the sliding restricting means attached to the upper end of the base 32 5 and the sliding restricting means 6 attached to the lower end side of the weight 4 can be slid. That is, the slidable width of the shaft 2 with respect to the handle portion 1 is limited to the distance between the sliding restricting means 5 and the sliding restricting means 6 minus the total length of the handle portion 1 . As the sliding restricting means 5 and 6, for example, an O-ring or the like fixed at an arbitrary position on the shaft 2 can be preferably used. In this embodiment, the sliding restricting means 5 is provided so as to be in contact with the base 32 and the sliding restricting means 6 is provided so as to be in contact with the weight 4; The sliding restricting means 5 and 6 may be provided at arbitrary portions of the shaft 2 apart from the base portion 32 and the weight 4, respectively.

Furthermore, although the weight 4 in this embodiment is attached and detached from the rear end of the shaft 2, the attachment position of the weight 4 is not limited to this place, and it may be attachable and detachable to the tip side where the application part 3 is provided. may be attached to the shaft 2 between the base 32 and the handle 1 in this embodiment. In this case, only means for restricting the shaft 2 from sliding toward the distal end side, such as the slide restricting means 6 , may be provided on the rear end side of the shaft 2 .

When attaching and detaching the weight 4 to and from the tip of the shaft 2, the end of the shaft 2 cannot be inserted through the hole 41 because the applicator 3 provided at the tip of the shaft 2 becomes an obstacle. Therefore, it is necessary to attach and detach the weight 4 from the middle of the shaft 2. As shown in the example of FIG. The shaft 2 may be moved to the center of and fixed. By attaching the weight 4 to the tip side of the shaft 2 in the same manner as the applicator 3, the center of gravity is lowered and stabilized during use.

A method for using the cosmetic applicator according to the present invention will be described below. First, one or more weights 4 are attached to the shaft 2, and an arbitrary load is set. Next, the cosmetic material is applied to the application surface 313 of the application portion 3, and the application surface 3 is placed on the surface to be applied while holding the handle portion 1 and maintaining a vertical posture as much as possible.

In this state, the height is adjusted so that the handle 1 does not come into contact with any of the upper and lower sliding restricting means 5 and 6. - 特許庁In this way, in a state in which the handle portion 1 is not in contact with any of the sliding restricting means 5 and 6, the weight of the weight 4, the shaft 2, and the weight of the applicator portion 3 are appropriately distributed on the applicator surface 313 of the applicator portion 3. be in a loaded state.

Then, the handle 1 is reciprocated horizontally with respect to the surface to be coated with the handle 1 vertical and not in contact with any of the sliding restricting means 5 and 6 to apply the cosmetic. When the grooves 314 provided in the coating surface 313 are formed in a straight line as in this embodiment, the moving direction of the handle 1 is perpendicular to the straight line. That is, since the groove 314 is formed in the vertical direction in FIG. 1(c), the direction in which the handle 1 is moved is the horizontal direction in the figure. In order to adjust the direction of the groove 314 to be perpendicular to the moving direction, the direction of the prismatic handle 1 or the base 311 of the tip tip 31, which is square in plan view, may be adjusted.

Even if the hand shakes up and down when reciprocating the handle part 1 when applying cosmetics, the shake is absorbed by the handle part 1 sliding up and down on the shaft 2. Therefore, the load on the coating surface 313 remains constant. Further, even if the surface to be coated has unevenness, the shaft 2 slides up and down following the unevenness, so the load applied to the coating surface 313 remains constant.

Since the grooves 314 provided in the application surface 313 generate friction with the surface to be applied, it is possible to reproduce the friction caused by fingerprints when applied with a finger.

The cosmetic applicator of the present invention is effective as an applicator for liquid cosmetics such as lotions, milky lotions, creams, beauty essences, liquid foundations, creamy foundations, and BB creams, but the object to be applied is not limited thereto. , as long as it can be applied in liquid form, and can be suitably used for pharmaceuticals, quasi-drugs, paints, and the like.

Reference Signs List 1... Cylindrical body 2... Shaft 3... Applied portion 4... Weight 5... Sliding restricting means 6... Sliding restricting means 31... Tip 31'... Tip tip 32... Base 41... Hole portion 42 Threaded portion 43 U-shaped groove 311 Base portion 312 Bulging portion 313 Application surface 314 Groove portion 311 ′ Base portion 312 ′ Bulging portion 313 ′ Coating surface 314' ... Groove 321 ... Threaded part

Claims (6)

A handle portion formed in a hollow cylinder shape of a predetermined length, and a hollow portion of the handle portion. A shaft mounted slidably in a constant width in a direction, an applicator attached to the tip of the shaft and having an applicator surface on the tip, and a weight detachably attached to a part of the shaft. A cosmetic applicator used in a substantially vertical posture . 2. The cosmetic applicator according to claim 1, wherein the application surface of said applicator is formed with grooves imitating a human fingerprint pattern. 3. The cosmetic applicator according to claim 1, wherein one or more of said weights are detachably attached to the rear end portion of said shaft. 4. The cosmetic applicator according to any one of claims 1 to 3, wherein the shaft is attached to the handle so as not to rotate. 5. The cosmetic applicator according to any one of claims 1 to 4, wherein said applicator comprises a base for attachment to the tip of said shaft, and a tip tip attached to said base. equipment. The front tip has a substantially bowl-shaped bulging portion that protrudes downward from the pedestal portion that is square in plan view, and a planar application surface formed at the tip of the bulging portion . 6. The cosmetic applicator according to claim 5, comprising:

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