U.S. patent application number 14/359589 was filed with the patent office on 2015-02-05 for electric makeup brush.
The applicant listed for this patent is Shiseido Company, Ltd.. Invention is credited to Tomochika Fujioka, Kazuhisa Ohno, Motoki Takata, Mikiya Tanaka, Akihito Torii, Toshimitsu Yamagishi.
Application Number | 20150034113 14/359589 |
Document ID | / |
Family ID | 48469728 |
Filed Date | 2015-02-05 |
United States Patent
Application |
20150034113 |
Kind Code |
A1 |
Yamagishi; Toshimitsu ; et
al. |
February 5, 2015 |
Electric Makeup Brush
Abstract
An object of the present invention is to provide an
electrically-operated makeup tool to enable, through electric
operation, a motion different from makeup work performed by hand,
an excellent finish of makeup relative to when performed by hand,
and a comfortable feeling upon contact with the skin that has not
been conventionally achievable, in addition to enabling application
of powdered cosmetic material in a short period of time without
dirtying the hand. Provided is a makeup brush that causes an
applicator formed of bundled bristles to reciprocally vibrate in a
direction in which the bristles are oriented with an electric drive
unit such that the applicator dabs cosmetic material onto the skin
with the tip of the bristles, wherein the amplitude of the
reciprocal vibration is 2 to 10 mm, the vibration frequency of the
reciprocal vibration is 3 to 50 Hz, and the length of the bristles
is 15 to 30 mm.
Inventors: |
Yamagishi; Toshimitsu;
(Yokohama-shi, JP) ; Ohno; Kazuhisa;
(Yokohama-shi, JP) ; Tanaka; Mikiya;
(Yokohama-shi, JP) ; Fujioka; Tomochika; (Chuo-ku,
JP) ; Torii; Akihito; (Yokohama-shi, JP) ;
Takata; Motoki; (Yokohama-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Shiseido Company, Ltd. |
Chuo-ku, Tokyo |
|
JP |
|
|
Family ID: |
48469728 |
Appl. No.: |
14/359589 |
Filed: |
November 19, 2012 |
PCT Filed: |
November 19, 2012 |
PCT NO: |
PCT/JP2012/079925 |
371 Date: |
May 21, 2014 |
Current U.S.
Class: |
132/200 ;
15/22.2 |
Current CPC
Class: |
A45D 2034/002 20130101;
A46B 13/02 20130101; A46B 9/021 20130101; A45D 34/042 20130101;
A45D 2033/001 20130101; A45D 33/36 20130101; A46B 13/023
20130101 |
Class at
Publication: |
132/200 ;
15/22.2 |
International
Class: |
A46B 13/02 20060101
A46B013/02; A45D 34/04 20060101 A45D034/04; A45D 33/36 20060101
A45D033/36 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 21, 2011 |
JP |
2011-253392 |
Claims
1. An electric makeup brush that causes an applicator formed of
bundled bristles to reciprocally vibrate in a direction in which
the bristles are oriented with an electric drive unit such that the
applicator dabs cosmetic material onto a skin with the tip of the
bristles.
2. The electric makeup brush according to claim 1, wherein the
drive unit includes an electric motor, a speed reduction mechanism
for reducing rotation of the electric motor, and a reciprocating
motion conversion mechanism that converts rotation reduced by the
speed reduction mechanism into reciprocating motion.
3. The electric makeup brush according to claim 2, wherein the
reciprocating motion conversion mechanism includes a cam mechanism
that converts rotation reduced by the speed reduction mechanism
into reciprocating motion in a direction identical or orthogonal to
a rotating shaft.
4. The electric makeup brush according to claim 3, wherein the cam
mechanism includes a push spring for biasing an arm to cause
contact with a cam.
5. The electric makeup brush according to claim 2, wherein the
reciprocating motion conversion mechanism includes a crank
mechanism that converts rotation reduced by the speed reduction
mechanism into reciprocating motion in a direction orthogonal to a
rotating shaft.
6. The electric makeup brush according to claim 1, wherein an
amplitude of the reciprocal vibration is 2 to 10 mm.
7. The electric makeup brush according to claim 1, wherein a
vibration frequency of the reciprocal vibration is 3 to 50 Hz.
8. The electric makeup brush according to claim 1, wherein a length
of each of the bristles is 15 to 30 mm.
9. The electric makeup brush according to claim 1, wherein an outer
diameter of the applicator is 10 to 35 mm.
10. The electric makeup brush according to claim 1, wherein a tip
surface of the applicator has a flat shape.
11. The electric makeup brush according to claim 1, wherein a tip
surface of the applicator has a flat shape inclined with respect to
the direction in which the bristles are oriented.
12. A makeup method, comprising using the electric makeup brush
according to claim 1 to dab cosmetic material onto a skin with the
tip of the bristles.
13. The electric makeup brush according to claim 2, wherein an
amplitude of the reciprocal vibration is 2 to 10 mm.
14. The electric makeup brush according to claim 3, wherein an
amplitude of the reciprocal vibration is 2 to 10 mm.
15. The electric makeup brush according to claim 2, wherein a
vibration frequency of the reciprocal vibration is 3 to 50 Hz.
16. The electric makeup brush according to claim 3, wherein a
vibration frequency of the reciprocal vibration is 3 to 50 Hz.
17. The electric makeup brush according to claim 2, wherein a
length of each of the bristles is 15 to 30 mm.
18. The electric makeup brush according to claim 2, wherein an
outer diameter of the applicator is 10 to 35 mm.
19. The electric makeup brush according to claim 2, wherein a tip
surface of the applicator has a flat shape.
20. The electric makeup brush according to claim 2, wherein a tip
surface of the applicator has a flat shape inclined with respect to
the direction in which the bristles are oriented.
Description
TECHNICAL FIELD
[0001] The present invention relates to an electric makeup brush
that causes an applicator formed of bundled bristles to be
reciprocally vibrated in a direction in which the bristles are
oriented with an electric drive unit such that the applicator dabs
cosmetic material onto the skin with the tip of the bristles.
BACKGROUND ART
[0002] Since powdered cosmetic materials such as foundation are
applied to a relatively large area of skin, it is of importance to
develop a makeup application tool that enables uniform application
in a short period of time and an even and beautiful finish.
Therefore, in recent years, electrically-operated makeup brushes as
a makeup application tool for applying powdered cosmetic material
such as foundation have been developed (Patent Documents 1 and
2).
[0003] These electrically-operated makeup brushes have an effect of
enabling application without dirtying the hand in a shorter period
of time than application by hand in a conventional manner and a
massaging effect through an increase in blood circulation. However,
the basic motions of the makeup brushes do not differ greatly from
the motion conventionally performed by hand. Therefore, a
significant effect in contrast to a case of application by hand has
not been necessarily expectable in the finish of makeup.
[0004] Development is desired for an electrically-operated makeup
tool to enable, through electric operation, a motion different from
makeup work performed by hand, an excellent finish of makeup
relative to when performed by hand, and an excellent feeling upon
contact with the skin that has not been conventionally achievable,
in addition to enabling reduction in time without dirtying the hand
through electric operation. [0005] Patent Document 1: Japanese
Patent Application Laid-open No. 2006-192074 [0006] Patent Document
2: Japanese Patent Application Laid-open No. 2006-238998
DISCLOSURE OF THE INVENTION
[0007] An object of the present invention is to provide an
electrically-operated makeup tool to enable, through electric
operation, a motion different from makeup work performed by hand,
an excellent finish of makeup relative to when performed by hand
that has not been conventionally achievable, and a comfortable
feeling upon contact with the skin, in addition to enabling
application of powdered cosmetic material in a short period of time
without dirtying the hand.
[0008] As a result a study conducted in order to achieve the above
object, the inventors of the present invention have found that
powdered cosmetic material can be applied uniformly in a short
period of time without dirtying the hand with an excellent feeling
upon contact with the skin and that an excellent cosmetic effect is
obtained by causing an applicator formed of bundled bristles to be
reciprocally vibrated in a direction in which the bristles are
oriented with an electric drive unit such that the applicator dabs
the cosmetic material onto the skin with the tip of the
bristles.
[0009] That is, the present invention is an electric makeup brush
that causes an applicator formed of bundled bristles to
reciprocally vibrate in a direction in which the bristles are
oriented with an electric drive unit such that the applicator dabs
cosmetic material onto a skin with the tip of the bristles.
[0010] Further, the present invention is the electric makeup brush
wherein the drive unit includes an electric motor, a speed
reduction mechanism for reducing rotation of the electric motor,
and a reciprocating motion conversion mechanism that converts
rotation reduced by the speed reduction mechanism into
reciprocating motion.
[0011] Further, the present invention is the electric makeup brush
wherein the reciprocating motion conversion mechanism includes a
cam mechanism that converts rotation reduced by the speed reduction
mechanism into reciprocating motion in a direction identical or
orthogonal to a rotating shaft.
[0012] Further, the present invention is the electric makeup brush
wherein the cam mechanism includes a push spring for biasing an arm
to cause contact with a cam.
[0013] Also, the present invention is the electric makeup brush
wherein the reciprocating motion conversion mechanism includes a
crank mechanism that converts rotation reduced by the speed
reduction mechanism into reciprocating motion in a direction
orthogonal to a rotating shaft.
[0014] Further, the present invention is the electric makeup brush
wherein an amplitude of the reciprocal vibration is 2 to 10 mm.
[0015] Further, the present invention is the electric makeup brush
wherein a vibration frequency of the reciprocal vibration is 3 to
50 Hz.
[0016] Further, the present invention is the electric makeup brush
wherein a length of each of the bristles is 15 to 30 mm.
[0017] Further, the present invention is the electric makeup brush
wherein an outer diameter of the applicator is 10 to 35 mm.
[0018] Further, the present invention is the electric makeup brush
wherein a tip surface of the applicator has a flat shape.
[0019] Further, the present invention is the electric makeup brush
wherein a tip surface of the applicator has a flat shape inclined
with respect to the direction in which the bristles are
oriented.
[0020] Also, the present invention is a makeup method including
using the electric makeup brush described above to dab cosmetic
material onto a skin with the tip of the bristles.
[0021] With the electric makeup brush of the present invention,
powdered cosmetic material such as foundation can be dabbed onto
the skin with the tip of the bristles, and it is possible to obtain
a makeup effect of a uniform and beautiful finish with excellent
durability.
[0022] Feeling upon contact with the skin is excellent, and it is
possible to apply powdered cosmetic material uniformly over the
entire face in a short period of time without dirtying the
hand.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] FIG. 1 is an external view of an electric makeup brush;
[0024] FIGS. 2(a) and 2(b) are transparent front views of the
electric makeup brush (FIG. 2 (a) of a state where an applicator is
projected, and FIG. 2(b) of a state where the applicator is drawn
in);
[0025] FIGS. 3(a) and 3(b) are transparent side views of the
electric makeup brush (FIG. 3 (a) of a state where an applicator is
projected, and FIG. 3(b) of a state where the applicator is drawn
in);
[0026] FIG. 4 is an exploded view of main components of the
electric makeup brush;
[0027] FIG. 5 is an exploded view of main components of an electric
makeup brush (of a second embodiment);
[0028] FIGS. 6(a) to 6(c) are shapes of a cam (FIG. 6(a) of the
second embodiment, FIG. 6(b) of a third embodiment, and FIG. 6(c)
of a fourth embodiment);
[0029] FIGS. 7(a) to 7(c) are views showing the shape of the
applicator (FIG. 7(a) with an inclined flat surface, FIG. 7(b) with
a perpendicular flat surface, and FIG. 7(c) with a curved
surface);
[0030] FIG. 8 is a view showing a dimensional measurement portion
of the applicator; and
[0031] FIG. 9 is a graph showing the relationship of the
deformation amount and load of the applicator.
BEST MODE FOR CARRYING OUT THE INVENTION
[0032] An electric makeup brush of the present invention will be
described in detail based on the drawings.
[0033] FIG. 1 shows the external appearance of the electric makeup
brush of the present invention. When a switch (7) provided to a
body (6) of an electric makeup brush (1) of the present invention
is turned on, an electric drive unit built in the body (6) is
activated to reciprocally vibrate an applicator (4) formed of
bundled bristles (3) in a direction in which the bristles (3) are
oriented, so that the applicator can dab cosmetic material onto the
skin with the tip of the bristles.
[0034] For the material of the bristle, use of horsehair that has
been conventionally used in makeup brushes or hair of an animal
such as a weasel, gray squirrel, pine squirrel, Canadian squirrel,
goat, raccoon, deer, cattle, sheep, rabbit, monkey, cat, fox, pig,
wolf, or Japanese giant flying squirrel, use of a bristle of
synthetic fiber such as polybutylene terephthalate (PET),
polyethylene terephthalate (PET), or nylon, use of a blend thereof,
and the like are acceptable.
[0035] There is a wide range of choice for the applicator without
particular limitation, as long as the rigidity is approximately the
same as that of a conventional makeup brush. However, when load is
applied to the tip of the bristles to push and bend the applicator,
the load for pushing and bending the applicator by 0 to 8 mm is
preferably in a range of 0 to 10 N, so that there is excellent
flexibility and an excellent fit and feeling on the skin. For the
electric makeup brush of the present invention, it is particularly
preferable that the deformation amount upon application of 4 N of
load on the applicator is approximately 1.5 mm as shown in FIG. 9,
for example, so that the there is a favorable balance in the ease
of application and touch on the skin from vibration.
[0036] As shown in FIGS. 2(a) and 2(b), a drive unit (2) includes
an electric motor (9), a speed reduction mechanism (10) for
reducing the rotation of the electric motor, and a reciprocating
motion conversion mechanism (11) that converts rotation reduced by
the speed reduction mechanism into reciprocating motion. A dry cell
(8) is built in the body (6). When the switch (7) is turned on, the
electric motor (9) is activated to activate the drive unit (2).
[0037] The speed reduction mechanism (10) is a mechanism for
reducing the rotation of the electric motor (9) up to rotation of
an appropriate rotation speed through use of the gear ratio of a
plurality of gears. As shown in FIGS. 2 (a) and 2(h) and FIGS. 3(a)
and 3(b) (FIGS. 2(a) and 2(b) showing transparent views from the
front and FIGS. 3(a) and 3(b) transparent views from the side), a
first gear (10a) attached to a rotating shaft (9a) of the electric
motor (9) is engaged with a second gear (10b), and the rotation of
the electric motor is transmitted to the second gear. In the
drawing, the first gear (10a) and the second gear (10b) are bevel
gears to convert the rotation of the electric motor (9) into
rotation of a rotating shaft orthogonal to the rotating shaft (9a).
Accordingly, the speed reduction mechanism (10) and the electric
motor (9) can be aligned in the shaft center direction of the
rotating shaft (9a) of the electric motor (9) to allow the body (6)
to be in a rod shape that is excellent in portability.
[0038] A third gear (10c) is a gear with a smaller number of teeth
and a smaller diameter than the second gear (10b) and is coupled
with the same rotating shaft as the second gear (10b). The third
gear (10c) is engaged with a fourth gear (10d) with a larger number
of teeth and a larger diameter than the third gear. The gear ratio
of the third gear and the fourth gear allows the rotation speed to
be reduced. At the rotating shaft of the fourth gear (10d), a fifth
gear (10e) with a small number of teeth and a small diameter is
coupled. By the fifth gear (10e) engaging with a sixth gear (10f)
with a larger number of teeth and a larger diameter, the rotation
speed is further reduced. With the speed reduction mechanism (10),
the rotation of the electric motor that is about 6000 rpm in
rotation speed is eventually reduced to about 180 to 3000 rpm in
rotation speed.
[0039] FIGS. 2(a), 2(b), 3(a) and 3(b) show the speed reduction
mechanism (10) using six gears. This is for incorporation into the
body (6) with a thin rod shape that is excellent in portability. By
using and combining a plurality of gears that are relatively small
in outer diameter to allow incorporation into the body (6), the
rotation speed is reduced in a step-like manner. Note that since
the shape of the body (6) differs depending on the usage or method
of use of the electric makeup brush, the number or type of gears to
be used in the speed reduction mechanism should be selected
appropriately.
[0040] The reciprocating motion conversion mechanism (11) is a
mechanism for converting rotation reduced by the speed reduction
mechanism (10) into reciprocating motion. As shown in FIG. 4, the
sixth gear (10f) and a rotating plate (10g) for which the rotating
shaft is the same are coupled in a position eccentric from the
rotating shaft of plate side surfaces (10h and 10i) that face each
other by a contact pin (11b) arranged to be parallel to the
rotating shaft.
[0041] An arm (11a) that contacts the contact pin (11b) upon
rotation of the sixth gear (10f) is fixed to a vibrating member
(12) through an insertion hole (6a) provided to the body (6). The
arm (11a) has an inclined surface that is curved. This is a contact
surface (11d) for contact with the contact pin (11b). Between the
vibrating member (12) and the body (6), a push spring (11c) is
incorporated and biased such that repulsion of the spring causes
the arm (11a) to contact the contact pin (11b).
[0042] On the outer circumferential surface of the vibrating member
(12), an external thread section (13a) is provided to be screwed
into and coupled with an applicator holding body (5) provided with
an internal thread section (13b) on the inner circumferential
surface. At the applicator holding body (5), the applicator (4) in
which bristles oriented in the vibrating direction of the vibrating
member (12) are bundled is fixed on the opposite side of the
vibrating member (12). The configuration is such that, when the
vibrating member (12) vibrates reciprocally, the applicator (4) is
caused to vibrate reciprocally in the direction in which the
bristles (3) are oriented. Coupling of the vibrating member (12)
and the applicator holding body (5) by screwing is one example for
detachably joining the applicator (4) and the applicator holding
body (5) to the vibrating member (12), in case replacement of the
applicator (4) becomes necessary due to wear of bristles or the
like. Thus, a method other than screwing may be employed
appropriately as a method for detachable joining. In the case where
replacement of the applicator is not necessary, the vibrating
member (12) and the applicator holding body (5) may be formed
integrally.
[0043] FIGS. 2(a) and 2(b) are transparent views of the electric
makeup brush of the present invention seen from the front, and
FIGS. 3 (a) and 3 (b) are transparent views seen from the side.
FIGS. 2(a) and 3(a) as well as FIGS. 2(b) and 3(b) respectively
show corresponding states. FIGS. 3(a) and 3(b) show an example in
which the sixth gear (10f) rotates in the counterclockwise
direction. When the sixth gear (10f) rotates, the arm (11a) starts
to contact the contact pin (11b) from the state of FIG. 3(a) (FIG.
2(a)). When the sixth gear (10f) rotates further in the
counterclockwise direction, the arm (11a) moves in the right
direction in the drawing along with the movement of the contact pin
(11b). With an inclined surface that is curved as the contact
surface for the contact pin and bias by the push spring (11c), the
arm (11a) can follow the rotating motion of the contact pin (11b)
smoothly, and the rotating motion of the sixth gear (10f) can be
converted into reciprocating motion.
[0044] Along with the rotation of the sixth gear (10f), the arm
(11a) moves in the right direction in the drawing up to the state
of FIG. 3 (b) (FIG. 2 (b)). However, when the sixth gear (10f)
rotates further, engagement with the contact pin (11b) is released,
and the arm (11a) and the vibrating member (12) coupled therewith
quickly moves in the left direction in the drawing due to repulsion
by the push spring (11c). Along with this movement, the applicator
(4) is projected for a dab on the skin with the tip of the
bristles. In this manner, the repulsion of the push spring (11c)
biases the arm (11a), causes the arm (11a) to contact the contact
pin (11b), and, in the case where engagement of the arm (11a) and
the contact pin (11b) is released, acts as a force for quickly
moving the applicator (4) for a dab on the skin with the tip of the
bristles. Since the force of the spring is used for a dab on the
skin in this manner, a comfortable sense of use can be obtained
without applying a strong force on the skin. Due to the push spring
(11c) being incorporated, excess force is not transmitted to the
sixth gear (10f) even in the case where a user presses the electric
makeup brush against the skin with a strong force upon use, for
example. Therefore, it is possible to avoid a risk of failure in
the speed reduction mechanism (10) or the electric motor (9).
[0045] In the cam mechanism (11) in FIGS. 2(a), 2(b), 3(a), and
3(c), a cam is formed by coupling plate side surfaces (10h and 10i)
of the sixth gear (10f) and the rotating plate (10g) that face each
other with the contact pin (11b) parallel to the rotating shaft,
and the arm (11a) that contacts the cam (contact pin (11b)) is
combined to convert the rotating motion of the sixth gear (10f)
into reciprocating motion in a direction orthogonal to the rotating
shaft. However, the shape of the cam is not limited to that shown
in the drawing. For example, a plate cam as shown in FIG. 6(a) may
be attached to a rotating shaft of a gear for use. By using an end
cam (FIG. 6(b)) or a cylindrical rib cam (FIG. 6(c)), it is
possible to convert the rotating motion of the sixth gear (10f)
into reciprocating motion in the same direction as the rotating
shaft, and the direction in which the applicator vibrates can be
changed.
[0046] The rotating motion of the gear (10f) can be converted into
reciprocating motion in a direction orthogonal to the rotating
shaft also by providing a crank mechanism (14) to the reciprocating
motion conversion mechanism (11), as shown in FIG. 5. The crank
mechanism is formed by coupling one end of a coupling rod (14a) in
a position eccentric from the rotating shaft of the fourth gear
(10d) and further coupling a rod (14b) rotatably to the other end
of the coupling rod (14a). A bush (15) is a member for restricting
the rod (14b) in the vibrating direction through insertion of the
rod (14b) and reducing friction with the body (6) caused by the
reciprocal vibration of the rod (14b).
[0047] As an approach of changing the vibration frequency, there is
a method of changing the voltage applied to the electric motor or
changing the pulse width through PWM control to change the rotation
speed of the electric motor. Although not shown in the drawing, an
adjustment dial or the like for changing the applied voltage or the
like may be provided to the body (6) so that the rotation speed of
the electric motor can be appropriately adjusted at the time of use
by a user. The amplitude (stroke length) may be adjusted through a
change in the moving distance of the arm (11a) or the coupling rod
(14a) in the reciprocating motion by increasing the diameter of a
rotating body such as the sixth gear (10f) shown in FIGS. 2 (a) and
2(b) or the fourth gear (10d) shown in FIG. 5 that is immediately
before the conversion of rotating motion into reciprocating motion,
changing the shape of the contact surface for the arm in the case
where a cam with a shape as shown in FIGS. 6(a) to 6(c) is used as
a rotating body, or the like.
Example
[0048] The results of a test conducted in order to confirm the
effect of the electric makeup brush of the present invention will
be described below in detail.
[0049] The results of comparison of the electric makeup brush of
the present invention with a conventional makeup method (method of
applying foundation with a normal technique using a normal makeup
brush) are shown in Table 1. The evaluations are all an average of
questionnaire evaluations conducted upon application of foundation
by three panelists and are indicated as Excellent, Good, Normal, or
Bad.
[0050] For the shape of the tip of the applicator, three types of
"inclined flat surface" (FIG. 7 (a)) that is a flat surface
inclined with respect to the direction in which the bristles are
oriented, "perpendicular flat surface" (FIG. 7(b)) that is a flat
surface perpendicular to the direction in which the bristles are
oriented, and "curved surface" (FIG. 7(c)) for which the tips of
the bristles are cut and aligned in a mound shape were
evaluated.
[0051] The length of the bristles is a value of measurement for a
longest bristle length L1 and a shortest bristle length L2 for
"inclined flat surface" (FIG. 7(a)), a bristle length L for
"perpendicular flat surface" (FIG. 7 (b)), and the longest bristle
length L1 and the shortest bristle length L2 for "curved surface"
(FIG. 7(c)).
[0052] The outer diameter of the applicator is a value of
measurement for the outer diameter of the bundled bristles or of
measurement of a major axis D1 and a minor axis D2 in the case of
an elliptical shape (FIG. 8).
TABLE-US-00001 TABLE 1 Comparative Example 1 (conventional makeup
Condition and evaluation item method) Example 1 Example 2 Example 3
Example 4 Example 5 Characteristics Shape of tip of Inclined flat
surface Inclined Inclined Perpendicular Perpendicular Curved of
brush applicator flat flat flat surface flat surface surface
surface surface Length of bristle 18-15 18-15 20-16 18 15 20-30
(mm) Outer diameter of 20 20 20-10 20 28-17 23 applicator (mm)
Characteristics Vibration frequency -- 1200 1200 1200 1200 1200 of
vibration (times per minute) Stroke (mm) -- 3 3 3 3 3 Evaluation
item Sense of use Normal Excellent Excellent Good Good Excellent
Capability for quick Normal Excellent Excellent Excellent Excellent
Excellent finish Applicability to Normal Good Excellent Good Good
Good fine portions Beauty of finish Normal Good Good Good Good
Normal Overall rating Normal Excellent Excellent Good Good Good
[0053] As shown in Table 1, favorable results were obtained for all
of Examples 1 to 5 compared to the conventional makeup method
(comparative example 1) using a normal makeup brush. Particularly
for Examples 1 and 2 in which the shape of the tip of the
applicator is "inclined flat surface," high evaluations were
obtained due to the applicability to fine portions. Thus, it was
confirmed that a cosmetic effect is further enhanced by causing the
shape of the tip of the applicator to be an inclined flat shape.
When the outer diameter of the applicator exceeds 35 mm, it is
difficult to apply cosmetic material to fine portions, and the
beauty of finish is affected. Thus, the outer diameter of the
applicator is preferably 35 mm or less.
[0054] Next, the sense of use such as the feeling of the applicator
upon contact with the skin in the case where the vibration
frequency and the stroke length (amplitude) of the electric makeup
brush are changed were evaluated.
[0055] The shape of the applicator of the electric makeup brush for
each evaluation is as shown in FIG. 7(a). The applicator used is
cylinder-shaped with an outer diameter of 20 mm, a flat inclined
surface as the tip surface, 18 mm in length (L1) for a longer
bristle, and 15 mm in length (L2) for a shorter bristle.
TABLE-US-00002 TABLE 2 Sense of use (feeling and softness on the
skin) Vibration frequency (Times per Stroke (mm) minute) (Hz) 2 3 5
7 10 200 3.3 Good Good Good Good Good 400 6.7 Good Excellent Good
Good Good 600 10 Good Excellent Good Excellent Good 800 13.3 Good
Excellent Excellent Excellent Good 1200 20 Excel- Excellent
Excellent Excellent Excellent lent 2500 41.7 Good Good Good Good
Good
[0056] As shown in Table 2, the electric makeup brush of the
present invention has a soft touch on the skin, and favorable
results were confirmed with evaluation results of Excellent to Good
under all conditions. Note that when the stroke length (amplitude)
is less than 2 mm, the moving distance of the applicator is slight.
Therefore, vibration was absorbed by the deformation of skin or
bristle, the tip of the bristles did not come off the skin, and the
effect of the present invention that is application through dabbing
on the skin was not obtained sufficiently.
[0057] When the vibration frequency exceeds 50 Hz, vibration of the
applicator was not felt, and the effect of application through
dabbing on the skin with the tip of the bristles was not
obtained.
[0058] Next, the results of evaluation for beauty of finish are
shown in Table 3.
TABLE-US-00003 TABLE 3 Beauty of finish Vibration frequency (Times
per Stroke (mm) minute) (Hz) 2 3 5 7 10 200 3.3 Good Good Normal
Normal Normal 400 6.7 Good Good Good Normal Normal 600 10 Good Good
Good Good Good 800 13.3 Good Good Excellent Excellent Good 1200 20
Good Good Excellent Excellent Excellent 2500 41.7 Good Excellent
Excellent Excellent Excellent
[0059] As shown in Table 3, there are many favorable results of
Good distributed in a range of 2 to 10 mm in stroke length and 3.3
to 41.7 Hz in vibration frequency. Particularly, there are many
extremely favorable results of Excellent distributed in a range of
13.3 to 41.7 Hz in vibration frequency and 3 to 7 mm in stroke
length. Note that, with a vibration frequency exceeding 50 Hz, the
motion of dabbing on the skin with the tip of the bristles cannot
be performed reliably, and a favorable result was not obtained.
[0060] The results of evaluation for the effect of enabling a quick
finish of makeup are shown in FIG. 4.
TABLE-US-00004 TABLE 4 Capability for quick finish Vibration
frequency (Times per Stroke (mm) minute) (Hz) 2 3 5 7 10 200 3.3
Good Normal Normal Normal Normal 400 6.7 Good Good Good Normal
Normal 600 10 Good Good Excellent Good Good 800 13.3 Good Good
Excellent Excellent Good 1200 20 Excel- Excellent Excellent
Excellent Excellent lent 2500 41.7 Good Excellent Excellent
Excellent Excellent
[0061] For the effect of enabling a quick finish of makeup, as
shown in Table 4, there are many favorable results of Good
distributed in a range of 2 to 10 mm in stroke length and 3.3 to
41.7 Hz in vibration frequency. Particularly, there are many
extremely favorable results of Excellent distributed in a range of
13.3 to 41.7 Hz in vibration frequency and 3 to 7 mm in stroke
length. In this manner, it was confirmed that a region of a
relatively large vibration frequency tends to be advantageous in
the finish of makeup. When the vibration frequency is smaller than
3 Hz, makeup cannot be finished quickly. The vibration frequency is
preferably 3 Hz or greater.
[0062] The results of evaluation for ease of application to fine
portions are shown in Table 5.
TABLE-US-00005 TABLE 5 Applicability to fine portions Vibration
frequency Stroke (mm) (Times per minute) (Hz) 2 3 5 7 10 200 3.3
Good Good Good Good Normal 400 6.7 Good Good Good Good Normal 600
10 Good Good Good Good Normal 800 13.3 Good Good Good Good Normal
1200 20 Good Good Good Good Normal 2500 41.7 Good Good Good Good
Normal
[0063] For the ease of application to fine portions, as shown in
Table 5, the results were favorable at Good with 2 to 7 mm in
stroke length and ordinary at Normal with 10 mm. A normal or
greater effect can be obtained with a stroke length of 2 to 10 mm.
For application to fine portions, the stroke length is preferably 2
to 7 mm.
[0064] The overall evaluations summarizing the respective
evaluations above are shown in Table 6.
TABLE-US-00006 TABLE 6 Overall rating Vibration frequency (Times
per Stroke (mm) minute) (Hz) 2 3 5 7 10 200 3.3 Good Good Normal
Normal Normal 400 6.7 Good Good Good Normal Normal 600 10 Good Good
Good Good Good 800 13.3 Good Good Excellent Excellent Good 1200 20
Excel- Excellent Excellent Excellent Excellent lent 2500 41.7 Good
Excellent Excellent Excellent Good
[0065] As shown in Table 6, there are many favorable results of
Good distributed in a range of 2 to 10 mm in stroke length and 3.3
to 41.7 Hz in vibration frequency. Particularly, there are many
extremely favorable results of Excellent distributed in a range of
13.3 to 41.7 Hz in vibration frequency and 2 to 10 mm in stroke
length. Note that the results above are evaluations for a case
where foundation is applied. It is possible that evaluations differ
from those described above in the case of applying powdered
cosmetic material such as oshiroi or blush that differs in formula
from foundation. Therefore, for application of various powdered
cosmetic materials with the electric makeup brush, it is desirable
that a mechanism capable of adjusting the stroke length and
vibration frequency be provided. Upon applying foundation, use with
an appropriate adjustment within the range described above is
preferable.
EXPLANATION OF REFERENCE NUMERALS
[0066] 1 Electric makeup brush [0067] 2 Drive unit [0068] 3 Bristle
[0069] 4 Applicator [0070] 5 Applicator holding body [0071] 6 Body
[0072] 6a Insertion hole [0073] 7 Switch [0074] 8 Dry cell [0075] 9
Electric motor [0076] 9a Rotating shaft [0077] 10 Speed reduction
mechanism [0078] 10a First gear [0079] 10b Second gear [0080] 10c
Third gear [0081] 10d Fourth gear [0082] 10e Fifth gear [0083] 10f
Sixth gear [0084] 10g Rotating plate [0085] 10h Plate side surface
[0086] 10i Plate side surface [0087] 11 Cam mechanism
(reciprocating motion conversion mechanism) [0088] 11a Arm [0089]
11b Contact pin [0090] 11c Push spring [0091] 11d Contact surface
[0092] 12 Vibrating member [0093] 13 Screwing section [0094] 13a
External thread section [0095] 13b Internal thread section [0096]
14 Crank mechanism (reciprocating motion conversion mechanism)
[0097] 14a Coupling rod [0098] 14b Rod [0099] 15 Bush
* * * * *