JP2005095531A - Electric mascara brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such problems that a mascara brush is often mistakenly operated since the conventional mascara brush is manually operated and delicate hand operation is required when applying a mascara liquid on the eyelash, a brush head often touches the skin surface of the eyelid or the like, the mascara agent once adhering to the eyelash in the clod state must be combed off by another comb specially used for the eyelash or the like, mending is difficult if once failed, and experience and technique are required for homogeneously and beautifully applying it. <P>SOLUTION: The electric mascara brush is constituted so as to automatically rotate the brush head at a constant speed by disposing a small motor inside the hollow handle of the mascara brush, disposing a gear for appropriately reducing the rotation rate, and connecting the shaft of the mascara brush thereto. Also, by enabling control of operation start, stop and switching of the rotation direction by disposing a switch in the exterior of the handle, application to the left, right, upper and lower eyelashes can be skillfully performed as one likes, and a beautiful finish can be attained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electric mascara brush that automatically rotates a mascara brush shaft and a brush head by a motor-driven rotation function provided in a hollow portion inside the handle of the mascara brush.

  As shown in FIG. 2, the mascara makeup tool includes a mascara container containing a mascara agent, a brush head, and a handle to which a shaft of the mascara brush is connected. The mascara brush is formed of a bristle brush head disposed at the tip of the shaft, a brush shaft, and a handle having a thread at one end that performs a cap function of the mascara agent container.

  Many inventions related to mascara brushes relate to brush heads. For example, in order to attach a sufficient amount of mascara to the brush head or to make the brush catch the eyelashes more effectively, the tip of the brush bristle material is bent and applied. There is a proposal (Patent Publication No. 2003-189930) for repeatedly forming an unoccupied region in the circumferential direction of the mascara brush.

  However, there has never been an invention for improving the application effect of the mascara brush by electrically rotating the mascara brush.

  A conventional method of using a mascara brush is a method of holding a handle portion, translating the brush from the base of the eyelash toward the hair tip, or applying a mascara agent while rotating a finger or wrist having the handle. However, with this method, it is difficult to manually apply the mascara to the eyelashes having a length of only a few millimeters as desired. In particular, the application near the roots of the eyelashes has a problem that the mascara adheres to the skin if the movement of the hand is disturbed even a little.

  The object of the present invention is to overcome the limitations of conventional mascara brush operations by human hands. SUMMARY OF THE INVENTION An object of the present invention is to apply a desired amount of a mascara to an eyelash easily and at a desired place with a minimum of manual operation by automatically rotating a mascara brush about an axis.

  As a first solution to achieve the above object, the present invention is to install a motor in a hollow portion inside the handle of the mascara brush and rotate the mascara brush around its axis by the power of the motor.

  In the second solution, the rotational speed of the motor is controlled by a gear reduction mechanism and rotated at a speed suitable for the shape of the brush, the viscosity of the mascara agent and the fiber content.

  According to the third solution, by operating a slide-type switch provided outside the handle, the rotation start, stop, and switching of the rotation direction can be freely operated with a fingertip.

  In the fourth solution, a female screw thread is provided on the inner peripheral surface of the handle cylinder from which the shaft protrudes to provide a cap function for screwing with the mascara container.

  A fifth solution is to provide a motor-driven rotating device portion provided in the handle and a partition for dividing the cap portion to prevent mascara from entering the motor-driven rotating device portion.

  According to the electric mascara brush of the present invention, since the motor-driven rotation device in the handle rotates the shaft of the mascara brush, and thus the brush head, the user does not need to rotate the handle with a finger or hand, and is unfamiliar. Even users with disabilities and hands can apply the mascara evenly by simply applying the automatically rotating mascara brush to the eyelashes, and the adhesion of the mascara to the skin can be reduced. . Moreover, since it can be used in a stopped state or can be rotated in reverse by operating the switch, the mascara agent can be applied to any eyelashes on the upper, lower, left and right sides as desired.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. It should be noted that the attached drawings are for the purpose of illustrating an embodiment considered to be the best of the present invention and are not intended to limit the present invention.

  As shown in FIG. 1, the electric mascara brush 1 includes a brush head 5, a brush shaft 7 to which the brush is fixed, which serves as a core, and a handle 8 having a hollow structure. The rotation by the motor 9 installed inside the handle 8 is reduced to a desired number of rotations by the gear assembly 10 as a reduction mechanism, and the brush shaft 7 and the brush head 5 are rotated. A slide-type switch 11 for the purpose of starting and stopping the operation of the motor 9 and controlling the direction of rotation is provided outside the handle.

  As shown in FIG. 2, the electric mascara brush 1 is a part constituting a mascara cosmetic tool together with the mascara agent container 2. The mascara container 2 may be a known type container having an outer peripheral wall 3 and a male screw 4 threaded on the outer peripheral surface of the mouth, and the outer peripheral wall 3 can include a brush head 5 that is a part of the electric mascara brush 1. Has an internal storage room of size. The brush head 5 may also be of a known type. The electric mascara brush 1 has a female screw 6 threaded on the inner peripheral surface of the handle cylinder at a portion where the shaft protrudes, and is complementary to the male screw 4 threaded on the outer peripheral surface of the mouth portion of the mascara agent container 2. It has a structure that combines.

  As shown in FIG. 1 again, in order to prevent the mascara from entering the hollow portion 12 inside the handle, a partition is formed between the hollow portion 12 and the female screw 6 threaded on the inner peripheral surface of the handle cylinder that performs the cap function. 13 is provided.

  The brush head 5 is preferably a torsion brush having a plurality of bristle materials extending in the radial direction around the core material, but may have any shape such as a cone, a cylinder, or a deformed cone.

  As shown in FIG. 1, the handle 8 has a hollow portion 12 that accommodates the motor 9. The motor 9 has sliding switch connection terminals 14a to 14h shown in FIG. 5 and motor connection terminals 16a and 16b for wiring connection with power supply connection terminals 15a and 15b. Moreover, it has the connecting shaft 18 to the central gear (sun gear) inside the first stage reduction mechanism part 17.

  As means for supplying rotational power to the brush shaft 7 defining the longitudinal axis and rotating the brush shaft 7 and the brush head 5, the motor 9 is connected to the first stage reduction mechanism 17 of the gear assembly 10 which is a reduction mechanism. The final stage reduction mechanism 19 of the gear assembly 10 that is a reduction mechanism is connected to the brush shaft 7. In FIG. 1, the multistage mounting of the planetary gear is shown as a speed reduction mechanism.

  The planetary gear mechanism shown in FIG. 1 and FIG. 3 is a known technique, and is a reduction mechanism in which a motor shaft and an output shaft are on the same line. As shown in FIG. 3, the planetary gear mechanism includes a sun gear 20 as a central gear, a planetary gear 21 disposed around the sun gear 20, and an internal gear fixedly installed on the outer periphery of the gear assembly 10 as a speed reduction mechanism. 22. The planetary gear mechanism has a larger number of meshed teeth than the speed reduction mechanism using only a spur gear, and can efficiently transmit the rotation by the motor 9 to the output shaft. FIG. 3 shows only one stage of the planetary gear mechanism positioned inside the gear assembly 10 that is a reduction mechanism. This planetary gear mechanism can increase the reduction ratio by increasing the number of stages.

  The rotation speed of the brush shaft 7 and the brush head 5 is determined by the shape of the brush head 5, the viscosity of the mascara material, and the fiber content. The speed suitable for various conditions is the rotation speed of the motor 9 and the gear serving as a speed reduction mechanism. It is designed by a combination of the assemblies 10.

  Assuming that the speed of the brush shaft 7 and the brush head 5 is preferably about one rotation per second, in order to realize this rotation speed, if the motor is decelerated at a ratio of 120: 1, the rotation speed of the motor 9 is 7200 rpm (every time). It is possible to allow up to about 7200 minutes). In FIG. 1, the first stage reduction mechanism 17 and the last stage reduction mechanism 19 which are planetary gear reduction mechanisms are used. In order to realize a reduction ratio of 120: 1, 60: 1 is used. The desired rotational speed is realized by using two planetary gear mechanisms having a reduction ratio of 2. FIG. 1 shows one of the best modes for using two planetary gear mechanisms to reduce the rotation speed by the motor 9, but other types of gear mechanisms can be used similarly. Note that it is possible to obtain a reduction ratio of.

  As shown in FIG. 1, the inside of the handle 8 has a hollow portion 12 that has power supply terminals 15 a and 15 b and accommodates a power supply mechanism 26 that can mount a battery. The power supply mechanism may be a known type mechanism in which when the battery is mounted, the positive charge terminal and the negative charge terminal of the battery are respectively connected to the power connection terminal 15a and the power connection terminal 15b.

  Referring to FIGS. 1 and 5, a slide switch 11 is installed for the purpose of controlling the operation of the electric mascara brush 1, and slide switch connection terminals 14 a to 14 h provided on the bottom of the slide switch 11, and a metal contact body Reference numerals 23a to 23d serve as switches S1 to S4 on the circuit diagram shown in FIG.

  As shown in the circuit diagram of FIG. 4, the motor 9 and the power supply mechanism 26 are connected via an H switch. The H switch is a known circuit, and the direction of the drive current flowing through the motor 9 is switched by closing two specific switches among the four switches and closing the circuit. As a result, the rotation direction of the motor 9 can be controlled by selecting the switch to be closed on the circuit diagram.

  When the slide-type switch 11 shown in FIG. 1 is advanced in the direction of the handle front end 24 of the electric mascara brush 1, the switches S1 and S4 on the circuit diagram shown in FIG. 4 are closed, and the motor 9 is necessary for normal rotation. Drive current flows. Similarly, when the sliding switch 11 is advanced in the direction of the handle rear end 25 of the electric mascara brush 1, the switches S2 and S3 on the circuit diagram shown in FIG. Necessary drive current flows.

  A side view and a front view of the sliding switch 11 are shown in FIGS. 5a and 5b, respectively. The metal contact body 23a and the sliding switch connection terminals 14a and 14b correspond to the switch S1 in FIG. The metal contact body 23b and the sliding switch connection terminals 14c and 14d correspond to the switch S4 in FIG. The metal contact 23c and the sliding switch connection terminals 14e and 14f correspond to the switch S2 in FIG. The metal contact 23d and the sliding switch connection terminals 14g and 14h correspond to the switch S3 in FIG.

  The slide type switch connection terminal 14a and the slide type switch connection terminal 14f are connected to the motor electrode A16a in the circuit diagram of FIG. 4, and the slide type switch connection terminal 14c and the slide type switch connection terminal 14h are shown in FIG. It is assumed that it is connected to the motor electrode B16b on the circuit diagram. Similarly, the sliding switch connection terminal 14b and the sliding switch connection terminal 14g are connected to a power supply connection terminal 15a in which the positive charge terminal of the battery is wired, and the sliding switch connection terminal 14d and the slide switch connection terminal 14g. It is assumed that the type switch connection terminal 14e is connected to a power supply connection terminal 15b in which the negative charge terminal of the battery is wired. The wiring of the connection terminal is effective in reducing the possibility of a short circuit of the battery by arranging the terminal connected to the battery on the inner side of the slide switch 11 as compared with the terminal connected to the motor 9. Is obtained.

As mentioned above, although the form considered to be the best for implementing this invention was illustrated, about the structure of each part, it is possible to add a various change, without leaving the range of this invention.

It is a section explanatory view of the electric mascara brush which shows the embodiment of the present invention. It is a partially cutaway side view of an electric mascara brush and a mascara agent container showing an embodiment of the present invention. It is the top view and side view which showed only one step of the planetary gear mechanism located inside the gear assembly which is a reduction mechanism. It is a circuit diagram which shows the connection form through the switch of a motor and a power supply mechanism. It is the side view and top view which showed the wiring of the terminal for a connection in a slide type switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric mascara brush 2 Mascara agent container 3 Outer peripheral wall 4 Male screw 5 screwed in the outer peripheral surface of the mouth part Brush head 6 Female screw threaded in the inner peripheral surface of the handle cylinder 7 Brush shaft 8 Handle 9 Motor 10 With a reduction mechanism A certain gear assembly 11 Sliding switch 12 Hollow part 13 Partition 14 Switch connection terminal 15 Power connection terminal 16 Motor connection terminal 17 First stage reduction mechanism part 18 Motor connection shaft 19 Final stage reduction mechanism part 20 Sun gear 21 Planetary gear 22 Internal gear 23 Metal contact body 24 Handle front end 25 Handle rear end 26 Power supply mechanism

Claims (9)

  The present invention is an electric mascara brush for applying a mascara agent, which is an eyelash cosmetic, to the eyelashes, and includes a brush head, a shaft that is an extension of the brush core, and a handle that has a hollow structure. The hollow structure inside the handle has a motor, a gear assembly as a speed reduction mechanism, and a mechanism for mounting a battery. Further, a slide type switch for controlling the motor is provided outside the handle.   The electric mascara brush according to claim 1, wherein the mascara brush has a brush head that rotates about a brush axis.   The electric mascara brush according to any one of claims 1 to 2, further comprising a gear assembly for performing deceleration control of a rotational speed of a drive portion that performs a rotational operation of the motor.   The electric mascara brush according to any one of claims 1 to 3, wherein the motor, the gear assembly, and the brush shaft portion are connected to each other.   The electric mascara brush according to any one of claims 1 to 4, further comprising a slide-type switch that starts, stops, and switches a rotation direction of the mascara brush.   The electric mascara brush according to any one of claims 1 to 5, further comprising a contact terminal and an electric wiring for connecting the sliding switch to each of a motor and a power supply mechanism.   The electric mascara brush according to any one of claims 1 to 6, further comprising a mechanism capable of mounting a battery for supplying electric power necessary for driving the motor inside the handle.   The inner peripheral surface of the handle cylinder at the protruding portion of the shaft has a female screw thread for screwing with the male screw threaded on the outer peripheral surface of the mouth portion of the mascara agent container, and is a detachable cap function The electric mascara brush according to claim 1, wherein the electric mascara brush is provided.   The said handle has a partition which divides the hollow part and the screw part which performs a cap function in order to prevent that a mascara agent penetrates into the hollow part in the handle which contains a rotation device. The electric mascara brush according to any one of 1 to 8.

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