JP5270747B2 - Electric makeup brush - Google Patents

Abstract

[Problem] The invention addresses the problem of providing an electric makeup tool, which, in addition to being able to apply powdered cosmetics in a short time without soiling the hands, makes possible movements that differ from manual makeup manipulation by virtue of being electric, provides a cosmetic finish superior to manual application, and feels good when applied to the skin, a feeling that could not be obtained in the past. [Solution] A makeup brush that reciprocally oscillates the applicator part, which is obtained by bundling brush hairs, by means of an electric driving unit in the direction that the brush hairs are oriented, and that applies makeup with the applicator part by tapping the tips of the brush hairs on the skin. The electric makeup brush is characterized in that the reciprocal oscillation amplitude is 2-10 mm, the reciprocal oscillation frequency is 3-50 Hz, and the length of the brush hairs is 15-30 mm.

Description

  The present invention relates to an electric makeup in which an application unit formed by bundling brush hairs is reciprocally vibrated in a direction in which the brush hairs are oriented by an electric drive unit, and cosmetics are applied at the application unit so as to strike the skin with the tips of the brush hairs. It is related with the brush.

  Since powdery cosmetics such as foundation are applied to a relatively large area of skin, it is important to develop a cosmetic applicator that can be applied uniformly in a short time, and can produce a beautiful finish without unevenness. . For this reason, in recent years, an electric cosmetic brush has been developed as a cosmetic applicator for applying powdery cosmetics such as a foundation (Patent Documents 1 and 2).

  However, these electric makeup brushes have an effect that they can be applied in a shorter time than before and applied without soiling the hands, and a massage effect by promoting blood circulation. The basic movement of the brush is not much different from the movement that has been done with the hand, so it is not always possible to expect a remarkable effect in the finish of the makeup compared to the case where it is applied by hand. It was.

  By being electric, it can be done in a short time without getting your hands dirty.In addition, by being electric, it allows for movements that are different from hand-operated makeup operations. In addition, there is a demand for the development of an electric makeup tool that has an excellent makeup finish and an excellent feel when applied to the skin, which could not be obtained in the past.

JP 2006-192074 A JP 2006-238998 A

  In addition to being able to apply powdered cosmetics in a short time without soiling the hands, the present invention is electrically driven, and thus can be moved differently from cosmetic operations performed by hand, and can be obtained conventionally. An object of the present invention is to provide an electric makeup tool that has a makeup finish superior to that performed by hand and has a good feel when applied to the skin.

As a result of investigations by the present inventors to solve the above problems, the electric drive unit reciprocally vibrates the application portion formed by bundling the bristles at a frequency of 3 to 50 Hz in the direction in which the bristles are oriented, By applying cosmetics at the application part so that the skin is struck with the tip of the brush hair, it can be applied evenly in a short time without getting your hands dirty, with excellent feel when touching the skin. As a result, the inventors have found that the present invention has an excellent makeup effect, and have completed the present invention.

That is, according to the present invention, the electric drive unit reciprocally vibrates the application portion formed by bundling the bristles in a direction in which the bristles are oriented at a frequency of 3 to 50 Hz, and hits the skin with the tip of the bristles. An electric cosmetic brush characterized by applying a cosmetic.

  Further, according to the present invention, the drive unit includes an electric motor, a speed reduction mechanism for reducing the rotation of the electric motor, and a reciprocating motion conversion mechanism for converting the reduced speed rotation by the speed reducing mechanism into a reciprocating motion. This is an electric makeup brush.

  Furthermore, the present invention is an electric cosmetic brush characterized in that the reciprocating motion conversion mechanism includes a cam mechanism that converts the decelerated rotation by the decelerating mechanism into a reciprocating motion in the same or orthogonal direction with respect to the rotation axis.

  Furthermore, the present invention is the brush for electric makeup, wherein the cam mechanism includes a pressing spring for urging the arm and bringing it into contact with the cam.

  The present invention is also an electric cosmetic brush characterized in that the reciprocating motion conversion mechanism includes a crank mechanism that converts the decelerated rotation by the decelerating mechanism into reciprocating vibration in a direction orthogonal to the rotation axis.

  Furthermore, the present invention is the brush for electric makeup, wherein the amplitude of the reciprocating vibration is 2 to 10 mm.

  Furthermore, the present invention is an electric cosmetic brush characterized in that the length of the bristle is 15 to 30 mm.

  Furthermore, this invention is an electric cosmetic brush characterized by the outer diameter of an application part being 10-35 mm.

  Furthermore, the present invention is an electric cosmetic brush characterized in that the tip surface of the application part has a planar shape.

  Furthermore, the present invention is the electric cosmetic brush characterized in that the tip surface of the application part has a planar shape inclined with respect to the direction in which the brush hairs are oriented.

  The present invention is also a makeup method characterized in that the cosmetic is applied so that the skin is hit with the tip of the brush hair using the electric makeup brush.

  According to the electric cosmetic brush of the present invention, powdery cosmetics such as a foundation can be applied as if hitting the skin with the tip of the brush hair, the finish is uniform and beautiful, and the makeup effect excellent in makeup retention Can be obtained.

  Moreover, it is excellent in the touch when it touches the skin, and it becomes possible to apply the powdery cosmetic material uniformly over the entire face in a short time without soiling the hands.

External view of electric makeup brush Front perspective view of the brush for electric makeup ((A) with the application part protruding, (A) with the application part retracted) Side perspective view of the brush for electric makeup ((A) with the application part protruding, (A) with the application part retracted) Exploded view of main components of brush for electric makeup Exploded view of main components of brush for electric makeup (second embodiment) Cam shape ((A) Second embodiment, (A) Third embodiment), (C) Fourth embodiment) Figures showing the shape of the application part ((A) Inclined plane, (A) Vertical plane, (C) Curved surface) The figure which shows the dimension measurement part of the application part Graph showing the relationship between the amount of deformation and the load on the coated part

  The electric cosmetic brush of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows the appearance of the electric cosmetic brush of the present invention. In the electric cosmetic brush (1) of the present invention, when the switch (7) provided in the main body (6) is turned on, the electric drive unit built in the main body (6) is activated, and the brush hair (3) is removed. The bundling application part (4) can be reciprocally oscillated in the direction in which the bristles (3) are oriented, and the cosmetic can be applied at the application part so as to strike the skin with the tips of the bristles.

  The material of the brush hair is horse hair, weasel, gray squirrel, pine squirrel, Canadian squirrel, goat, fox, deer, cow, sheep, fox, monkey, cat, fox, pig, wolf It can be used by using animal hair such as flying squirrel, synthetic fiber hair such as polybutylene terephthalate (PBT), polyethylene terephthalate (PET), nylon, or mixing these.

  The application part can be widely adopted without particular limitation as long as it has the same degree of hardness as a conventional cosmetic brush, but when applying a load to the tip of the brush hair and bending the application part, If the load for pushing and bending the application part by 0 to 8 mm is in the range of 0 to 10 N, it is preferable because it is excellent in flexibility and excellent in fit and feel to the skin. Further, in the electric cosmetic brush of the present invention, for example, as shown in FIG. 9, the amount of deformation when applying a load of 4N to the application part is about 1.5 mm. The hit balance is good and particularly preferable.

  As shown in FIG. 2, the drive unit (2) includes an electric motor (9), a speed reduction mechanism (10) for decelerating the rotation of the electric motor, and a reciprocating motion conversion for converting the decelerated rotation by the speed reducing mechanism into a reciprocating motion. A mechanism (11) is provided. The main body (6) contains a dry battery (8). When the switch (7) is turned on, the electric motor (9) is activated and the drive unit (2) is operated.

  The reduction mechanism (10) is a mechanism for reducing the rotation of the electric motor (9) to an appropriate rotation speed by the gear ratio of the plurality of gears. As shown in FIG. 2 and FIG. 3 (FIG. 2 is a perspective view from the front, and FIG. 3 is a perspective view from the side), a first gear mounted on the rotating shaft (9a) of the electric motor (9) ( 10a) meshes with the second gear (10b), and the rotation of the electric motor is transmitted to the second gear. In the figure, the first gear (10a) and the second gear (10b) are bevel gears, and the rotation by the electric motor (9) is converted into the rotation of the rotation shaft orthogonal to the rotation shaft (9a). . Thereby, the speed reduction mechanism (10) and the electric motor (9) can be arranged side by side in the axial center direction of the rotating shaft (9a) of the electric motor (9), and the main body (6) is excellent in portability. It is possible to make it a rod shape.

  The third gear (10c) is a small-diameter gear having fewer teeth than the second gear (10b) and is connected to the same rotating shaft as the second gear (10b). The third gear (10c) meshes with the fourth gear (10d) having a larger number of teeth and a larger diameter than the third gear, and the rotational speed is reduced by the gear ratio between the third gear and the fourth gear. Can do. Further, the fourth gear (10d) is connected to the rotation shaft of the fifth gear (10e) having a small diameter and a small diameter, and the fifth gear (10e) is a sixth gear having a larger number of teeth and a large diameter. The rotational speed is further reduced by meshing with the gear (10f). By such a speed reduction mechanism (10), the rotation of the electric motor at a rotational speed of about 6000 rpm is finally reduced to a rotational speed of about 180 to 3000 rpm.

  2 and 3 show a speed reduction mechanism (10) using six gears, which is for incorporation into a thin rod-shaped main body (6) excellent in portability, and is incorporated into the main body (6). A plurality of gears having a relatively small outer diameter can be used, and the rotational speed is gradually reduced by combining these gears. However, since the shape of the main body (6) differs depending on the application and usage of the electric cosmetic brush, the number and type of gears used in the speed reduction mechanism should be appropriately selected and used.

  The reciprocating motion conversion mechanism (11) is a mechanism for converting the rotation decelerated by the speed reducing mechanism (10) into a reciprocating motion. As shown in FIG. 4, the sixth gear (10f) and the rotating plate (10g) having the same rotation axis are opposed to each other by an abutment pin (11b) arranged parallel to the rotation axis. It is connected at a position eccentric from the rotation axis of the plate side surface (10h, 10i).

  The arm (11a) that contacts the contact pin (11b) by the rotation of the sixth gear (10f) is fixed to the vibrating member (12) through the insertion hole (6a) provided in the main body (6). The arm (11a) has a curved inclined surface, which is used as a contact surface (11d) with the contact pin (11b). A pressing spring (11c) is incorporated between the vibration member (12) and the main body (6), and the arm (11a) is urged to contact the contact pin (11b) by the repulsive force of the spring. ing.

  A male screw part (13a) is provided on the outer peripheral surface of the vibration member (12), and the application part holding body (5) provided with a female screw part (13b) on the inner peripheral surface is screwed and connected. ing. The applicator holding body (5) fixes the applicator (4) in which the bristles oriented in the vibration direction of the vibration member (12) are bundled on the opposite side of the vibration member (12), and the vibration member (12 ) Is reciprocally oscillated, the application part (4) is reciprocally oscillated in the direction in which the bristles (3) are oriented. The connection of the vibrating member (12) and the application part holding body (5) by screwing is provided in case the application part (4) needs to be replaced due to wear of the brush hair or the like. It is an example for joining the application part holding body (5) to a vibration member (12) so that attachment or detachment is possible. Therefore, as a method for detachably joining, a method other than screwing can be adopted as appropriate, and when the application part does not need to be replaced, the vibrating member (12) and the application part holding body (5) Can also be formed integrally.

  2 is a perspective view from the front of the brush for electric makeup according to the present invention, and FIG. 3 is a perspective view from the side. FIG. 2 (a) and FIG. 3 (a), FIG. 2 (b) and FIG. ) Indicates the corresponding state. FIG. 3 shows an example in which the sixth gear (10f) rotates counterclockwise. When the sixth gear (10f) rotates, the arm (11a) starts to come into contact with the contact pin (11b) from the state of FIG. 3 (a) (FIG. 2 (a)), and the sixth gear (10f) further turns counterclockwise. When rotating in the direction, the arm (11a) moves to the right in the figure as the contact pin (11b) moves. Since the arm (11a) has a curved inclined surface as a contact surface with the contact pin and is biased by the pressing spring (11c), the arm (11a) smoothly follows the rotational motion of the contact pin (11b). The rotational movement of the sixth gear (10f) can be converted into a reciprocating movement.

  As the sixth gear (10f) rotates, the arm (11a) moves to the right in the figure until the state shown in FIG. 3 (a) (FIG. 2 (a)), but when the sixth gear (10f) further rotates. Then, the engagement with the contact pin (11b) is released, and the arm (11a) and the vibrating member (12) connected thereto are quickly moved in the left direction in the figure by the repulsive force of the pressing spring (11c). With this movement, the application part (4) is projected so as to strike the skin with the tip of the brush hair. In this way, the repulsive force of the pressing spring (11c) urges the arm (11a) to bring the arm (11a) into contact with the contact pin (11b), and at the same time, the arm (11a) and the contact pin (11b) When the engagement is released, the application part (4) is quickly moved and acts as a force for hitting the skin with the tip of the brush hair. In this way, the force of the spring is used to strike the skin, so that a strong force is not applied to the skin and a comfortable feeling of use can be obtained. Further, by incorporating the pressing spring (11c), for example, even when the user presses the electric makeup brush against the skin with a strong force, an excessive force may be transmitted to the sixth gear (10f). Therefore, it is possible to avoid the risk of failure of the speed reduction mechanism (10) and the electric motor (9).

  In the cam mechanism (11) shown in FIGS. 2 and 3, the side surfaces (11h, 11i) of the sixth gear (10f) and the rotating plate (10g) facing each other are contacted by a contact pin (11b) parallel to the rotating shaft. Combining them to form a cam and combining the cam (contact pin (11b)) with the arm (11a) makes it possible to reciprocate the rotational movement of the sixth gear (10f) in the direction perpendicular to the rotation axis. Although converted into motion, the shape of the cam is not limited to that shown in the figure, and for example, a plate cam as shown in FIG. If the end face cam (Fig. 6 (a)) or cylindrical rib cam (Fig. 6 (c)) is used, it is possible to convert the rotational movement of the sixth gear (10f) into a reciprocating movement in the same direction as the rotation axis. Yes, the direction in which the application part vibrates can be changed.

  Further, as shown in FIG. 5, the reciprocating motion converting mechanism (11) can be provided with a crank mechanism (14) to convert the rotational motion of the gear (10f) into a reciprocating motion in a direction perpendicular to the rotation axis. it can. The crank mechanism rotatably connects one end of the connecting rod (14a) to a position eccentric from the rotation shaft of the fourth gear (10d), and further rotates the rod (14b) to the other end of the connecting rod (14a). Concatenated as possible. The bush (15) restricts the direction in which the rod (14b) vibrates by inserting the rod (14b), and reduces friction with the main body (6) caused by the reciprocating vibration of the rod (14b). It is a member for doing.

  As means for changing the frequency, there are methods of changing the voltage applied to the electric motor or changing the pulse width by PWM control to change the rotation speed of the electric motor, which is not shown in the figure, An adjustment dial or the like for changing the applied voltage or the like can be provided in the main body (6) so that the user can appropriately adjust the rotation speed of the electric motor during use. Also, the amplitude (stroke length) is the diameter of the rotating body just before converting the rotary motion to reciprocating motion, such as the sixth gear (10g) shown in FIG. 2 or the fourth gear (10d) shown in FIG. When the cam having the shape as shown in FIG. 6 is used as the rotating body, the movement of the arm (11a) and the connecting rod (14a) reciprocally moved by changing the shape of the contact surface with the arm. It can be adjusted by changing the distance.

  The test result for confirming the effect performed about the brush for electric cosmetics of this invention is demonstrated in detail below.

  Table 1 shows the results of comparison of the electric cosmetic brush of the present invention with a conventional cosmetic method (a method of applying a foundation by a normal method using a normal cosmetic brush). Each of the evaluations is an average of questionnaire evaluations performed when the foundation was applied by three panelists, where ◎ is extremely excellent, ◯ is excellent, Δ is normal, and x is inferior.

  The tip shape of the application part is an “inclined plane” (FIG. 7A) that is an inclined plane with respect to the direction in which the brush hairs are oriented, and a “vertical” that is perpendicular to the direction in which the brush hairs are oriented. Three types were evaluated: a “plane” (FIG. 7 (a)) and a “curved surface” (FIG. 7 (c)) in which the hair tips were cut into a mountain shape.

  The length of the bristle is the longest bristle length L1 and the shortest bristle length L2 (FIG. 7A) in the “inclined plane”, and the bristle length L (in FIG. A)) is a numerical value obtained by measuring the longest bristle length L1 and the shortest bristle length L2 (FIG. 7C) in the “curved surface”.

  The outer diameter of the application part is a numerical value obtained by measuring the outer diameter of the bundled bristles, and measuring the major axis D1 and the minor axis D2 when it is elliptical (FIG. 8).

  As shown in Table 1, Examples 1 to 5 were able to obtain good results as compared with the conventional makeup method (Comparative Example 1) using a normal cosmetic brush. In particular, in Examples 1 and 2 in which the tip shape of the application part was “inclined plane”, high evaluation could be obtained because it was possible to apply even a fine part. From this, it was confirmed that the makeup effect is further improved by making the tip shape of the application part into an inclined planar shape. Moreover, when the outer diameter of an application part exceeds 35 mm, it will become difficult to apply | coat cosmetics to a fine part, and it will be inferior also in the beauty of a finish. Therefore, the outer diameter of the application part is preferably 35 mm or less.

  Next, the feeling of use, such as the feeling of the application part which touches the skin when the frequency and stroke length (amplitude) of the brush for electric cosmetics were changed, was evaluated.

  Hereinafter, the application part of the brush for electric cosmetics in each evaluation has a shape as shown in FIG. 7A, the application part has a cylindrical shape with an outer diameter of 20 mm, the tip surface has a flat inclined surface, and the hair The brush hair with the longer leg length (L1) was 18 mm, and the brush hair length (L2) with the shorter leg length was 15 mm.

  As shown in Table 2, the electric cosmetic brush of the present invention was soft on the skin, and was an evaluation result of ◎ to ○ under all conditions, and a good result could be confirmed. However, when the stroke length (amplitude) is less than 2 mm, the moving distance of the application part is small, so that vibration is absorbed by the deformation of the skin and the brush hair, so that the brush hair tip does not leave the skin and strikes the skin. Thus, the effect of the present invention to be applied could not be sufficiently obtained.

  Moreover, when the frequency exceeded 50 Hz, it was not possible to feel that the application part was vibrating, and the effect of applying the skin so as to strike the skin with the tip of the brush hair was not obtained.

  Next, Table 3 shows the results of evaluating the beauty of the finish.

  As shown in Table 3, many good results are distributed in the range of stroke length of 2 to 10 mm and frequency of 3.3 to 41.7 Hz, and in particular, the frequency of 13.3 to 41. Within the range of 7 Hz and stroke length of 3 to 7 mm, many very good results are distributed. However, at frequencies exceeding 50 Hz, the operation of hitting the skin with the tip of the brush hair could not be performed reliably, and good results were not obtained.

  Table 4 shows the results of the evaluation of the effect that can quickly finish the makeup.

  As shown in Table 4, the effect of being able to finish the makeup quickly is that many good results are distributed within the range of stroke length of 2 to 10 mm and frequency of 3.3 to 41.7 Hz, In the range where the frequency is 13.3 to 41.7 Hz and the stroke length is 3 to 7 mm, many very good results are distributed. Thus, it was confirmed that the region having a relatively high frequency tends to be excellent in the finish of the makeup. On the other hand, if the frequency is less than 3 Hz, the makeup cannot be finished quickly, and the frequency is preferably 3 Hz or more.

  Table 5 shows the results of evaluating the ease of application to fine parts.

  As shown in Table 5, the ease of application to fine portions was good when the stroke length was 2 to 7 mm, and Δ was normal when the stroke length was 10 mm. The stroke length is 2 to 10 mm, and an effect higher than the standard is obtained. However, in order to apply to a fine portion, the stroke length is preferably 2 to 7 mm.

  Table 6 shows a comprehensive evaluation that combines the above evaluations.

  As shown in Table 6, many good results are distributed within a range of stroke length of 2 to 10 mm and frequency of 3.3 to 41.7 Hz, and in particular, frequency of 13.3 to 41.7 Hz. In the range of the stroke length of 2 to 10 mm, a lot of very good results are distributed. However, the above results are evaluations when applying a foundation, and when applying a powdery cosmetic material having a prescription different from the foundation, such as white powder or blush, there is a possibility that the evaluation is different from the above. For this reason, in order to apply various powdery cosmetics with an electric cosmetic brush, it is desirable to provide a mechanism capable of adjusting the stroke length and frequency, and within the above range when applying a foundation. It is preferable to adjust and use as appropriate.

DESCRIPTION OF SYMBOLS 1 Electric makeup brush 2 Drive unit 3 Brush hair 4 Application | coating part 5 Application | coating part holding body 6 Main body 6a Insertion hole 7 Switch 8 Dry battery 9 Electric motor 9a Rotating shaft 10 Reduction mechanism 10a First gear 10b Second gear 10c Third gear 10d Fourth gear 10e Fifth gear 10f Sixth gear 10g Rotating plate 10h Plate side surface 10i Plate side surface 11 Cam mechanism (reciprocating motion conversion mechanism)
11a Arm 11b Contact pin 11c Pressing spring 11d Contact surface 12 Vibrating member 13 Screwing portion 13a Male screw portion 13b Female screw portion 14 Crank mechanism (reciprocating motion conversion mechanism)
14a Connecting rod 14b Rod 15 Bush

Claims (11)

Using an electric drive unit, the application part formed by bundling the brush bristles is reciprocated at a frequency of 3 to 50 Hz in the direction in which the bristles are oriented, and the cosmetic is applied at the application part so as to strike the skin with the tip of the bristles. An electric makeup brush characterized by that.   The drive unit includes an electric motor, a speed reduction mechanism for reducing the rotation of the electric motor, and a reciprocating motion conversion mechanism for converting the reduced speed rotation by the speed reducing mechanism into a reciprocating motion. The brush for electric makeup as described.   3. The electric cosmetic brush according to claim 2, wherein the reciprocating motion conversion mechanism includes a cam mechanism for converting the decelerated rotation by the decelerating mechanism into a reciprocating motion in the same or orthogonal direction with respect to the rotation axis.   4. The electric cosmetic brush according to claim 3, wherein the cam mechanism includes a pressing spring for urging the arm to contact the cam.   3. The electric cosmetic brush according to claim 2, wherein the reciprocating motion conversion mechanism includes a crank mechanism that converts the reduced speed rotation by the speed reducing mechanism into a reciprocating motion in a direction orthogonal to the rotation axis.   The electric cosmetic brush according to any one of claims 1 to 5, wherein the amplitude of the reciprocating vibration is 2 to 10 mm. The brush for electric makeup according to any one of claims 1 to 6 , wherein the length of the bristle is 15 to 30 mm. The electric makeup brush according to any one of claims 1 to 7 , wherein an outer diameter of the application part is 10 to 35 mm. The electric cosmetic brush according to any one of claims 1 to 8 , wherein a tip surface of the application part has a planar shape. The electric cosmetic brush according to any one of claims 1 to 9 , wherein a tip surface of the application part has a planar shape inclined with respect to a direction in which the brush hairs are oriented. A cosmetic method comprising applying the cosmetic so as to strike the skin with the tip of the brush hair using the electric cosmetic brush according to any one of claims 1 to 10 .

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