(en)Disclosed is a vibratory lash brush with forward/backward rotation control. The lash brush has a handheld body containing therein a transmission motor and through the control of rotation provided by a reduction device coupled to an end of the motor, the lash brush can be put in rotation with a slow speed. An opposite end of the motor is structured to extend a spindle that carries an eccentric weight block, whereby when turned on, the lash brush induces vibration with the high speed rotation so that the brush stem provides a two-in-one novel lash brush structure that exhibits both vibration and rotation, and that is rotatable in a slow speed with a reduction device, together with high speed eccentric vibration induced in the opposite side of the motor, to realize assistance to uniform application by the lash brush, achieving a practical efficacy of eyelash curling and uniform makeup operation.

1.ApplicationNumber: US-47561309-A
1.PublishNumber: US-2010300474-A1
2.Date Publish: 20101202
3.Inventor: TSAI YI-LI

4.Inventor Harmonized: TSAI YI-LI(TW)

5.Country: US
6.Claims:
(en)Disclosed is a vibratory lash brush with forward/backward rotation control. The lash brush has a handheld body containing therein a transmission motor and through the control of rotation provided by a reduction device coupled to an end of the motor, the lash brush can be put in rotation with a slow speed. An opposite end of the motor is structured to extend a spindle that carries an eccentric weight block, whereby when turned on, the lash brush induces vibration with the high speed rotation so that the brush stem provides a two-in-one novel lash brush structure that exhibits both vibration and rotation, and that is rotatable in a slow speed with a reduction device, together with high speed eccentric vibration induced in the opposite side of the motor, to realize assistance to uniform application by the lash brush, achieving a practical efficacy of eyelash curling and uniform makeup operation.

7.Description:
(en)TECHNICAL FIELD OF THE INVENTION
The present invention generally relates to a vibratory lash brush with forward/backward rotation control, which comprises a handheld body containing therein a two-in-on transmission motor featuring both rotation and vibration operations, together with a reduction device set at one end thereof to couple with a lower end of a brush stem with a connector, so that the brush stem may be rotated in a slow speed for performing makeup operation, and an opposite end being structured to extend a spindle carrying a weight block so that a high speed rotation automatically induces vibration on the brush and with the brush stem driving a brush to make slow speed curling and unique vibration, lash curling makeup operation can be effectively carried out and application of lash liquid is made efficient and uniform to achieve the economic effect and purposes of efficient makeup and material saving and application.
DESCRIPTION OF THE PRIOR ART
A conventional lash brush shows a structure design as illustrated in FIG. 7 of the attached drawings, and is generally constructed with an enclosing cap body 21 , which also serves as a handheld body for performing makeup operation and has a central portion to which a plastic brush stem 22 that is fixed and extends outward as a slender bar. An extending end of the stem forms a brush 23 that has a curved form and is composed of brush hairs of suitable lengths to form a lash brush structure. A lash cosmetic liquid/paste container 24 forms a closeable opening through which the lash brush is insertable into the lash cosmetic liquid/paste container 24 to have the brush 23 and the brush stem 22 dipping into and staying in the contained cosmetic liquid to thereby form a complete lash brush container structure. To perform makeup, the brush stem 22 that is inserted in the lash liquid/paste container with the cosmetics attached to the brush 23 is removed from the container and scrapped off excessive cosmetics and the body 21 is held by a hand to have the brush 23 positioned in alignment with the eyelashes to properly attach cosmetics thereto. To use, the cosmetic liquid is applied to the eyelashes several times. To make the eyelash curled for makeup purposes, the whole brush 23 must be properly rotated to allow the cosmetics to be uniformly applied to the eyelashes. This definitely depends on properly trained makeup skill and also takes time for makeup. Generally consumers are not able to doe the makeup in a short period, especially when it needs to hold the brush with a hand to simultaneously carry out application and curling with the brush 23 . In case that the cosmetics are not uniformly applied, it is hard to carry out uniform and effective makeup operations, especially for making lash curling makeup operation, which is particularly difficult for non-trained users. Thus, to meet the needs of practical makeup operations, the known structure of lash brush must be further improved in order to make the lash makeup operations easy through improvement associated with easy operation of lash brush and uniform application of cosmetics and this has been the target of the developments and researches of this industry.
SUMMARY OF THE INVENTION
The present inventor is a professional makeup product manufacturer and has years' experience of manufacturing and sales of the product so that the present inventor is fully aware of the drawbacks of the known lash brush occurring in practical makeup operations. For the purposes of improving product quality and providing convenience of use, after conducting intensive study and research, the inventor creates a vibratory lash brush with forward/backward rotation control, wherein a lower end of a brush stem that is fit into a handheld body cooperates with a connector to couple with a reduction device provided at an output end of a transmission motor to achieve slow speed rotation and control of a brush. An opposite end of the transmission motor is structured to provide a spindle to which a weight block is mounted to allow the brush to simultaneously show rotation control and vibration for assistance for lash makeup operation of curling and cosmetic application so as to remarkably improve the drawbacks of inconvenience of applying and curling eyelashes and non-uniform application that occur in using the existing lash brush devices.
A primary objective of the present invention is that a handheld body contains therein a transmission motor for rotation, of which one end is coupled to a reduction device having an output end coupled to a lower end of a brush stem with a connector for causing the brush stem to rotate with a slow speed, an opposite end of the motor being structured to provide a spindle that carries a weight block, whereby the motor, when put in rotation, induces high speed vibration to allow uniform application of cosmetics when performing makeup operations and wherein the rotating brush stem also provides assistance for simple curling of eyelashes to make the lash makeup operation easy and ensure comfortableness and practicability of eyelash makeup operation.
The foregoing objective and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view of a lash brush in accordance with the present invention.
FIG. 2 is a perspective view of the lash brush of the present invention in an assembled form.
FIG. 3 is a cross-sectional view of the lash brush of the present invention.
FIG. 4 is a perspective view illustrating rotation and vibration of the lash brush for performing a makeup operation.
FIG. 5 is a cross-sectional view illustrating vibration and rotation and speed adjusting devices of the present invention.
FIG. 6 is a perspective view of the lash brush of FIG. 5 .
FIG. 7 is a perspective view of a conventional lash brush.



DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
The present invention provides a vibratory lash brush with forward/backward rotation control. As shown in FIGS. 1-4 , the structure improvement of the lash brush offered by the present invention comprises a handheld body 10 that is made of plastics to be hand held for performing makeup operations and is closeable by a cap and a container 20 for receiving liquid cosmetics for eyelashes. The handheld body 10 has an end to which a brush stem 11 is rotatably mounted. The brush stem has an outward-extending outside end to which a brush 12 of a suitable length is mounted. An inside end of the of the brush stem 11 , which is fit into an inner bottom end of the body 10 , forms a fitting slot to couple with a reduction transmission assembly that is received in the body 10 and is composed of a transmission motor 13 and a reduction device 14 . The reduction device 14 has an output end forming a connector 15 for coupling with the fitting slot of the brush stem 11 , whereby the brush stem 11 is rotatable in synchronization with the rotation of reduction device 14 to drive synchronous rotation of the brush 12 . An opposite end of the transmission motor 13 is structured to have a spindle extending outward for coupling with a weight block 141 , which can be formed as a known eccentric flywheel for high speed rotation in unison with the transmission motor 13 so as to realize high speed vibration with eccentric rotation. Thus, the lash brush is made a structure of two-in-one rotation control that simultaneously exhibits rotation and vibration. The transmission motor 13 of the transmission assembly can be directly fixed in a pre-formed cavity inside the body 10 , or alternatively and separately retained by a positioning holder 16 . An end of the body 10 is closed and sealed by a lid 17 . The lid 17 has an interior space for receiving and retaining a battery set 18 , or alternatively, the battery set is directly fixed at a predetermined position inside the body 10 , to server as a power source. The arrangement of the lid 17 is to facilitate the replacement and use of the battery set 18 , which is connected through wiring arrangement to the transmission assembly of the transmission motor 13 . The connection wiring arrangement is connected at an intermediate section thereof with a position-switchable actuation switch 19 , which serves as switching control for selectively turning on power, whereby through proper arrangement of a control circuit, the switch provides selective switching operation between forward rotation and backward rotation. To use, through the switching operation performed with the actuation switch 19 , the transmission motor 13 is actuated and rotates and through the reduction output control effected by the reduction device 14 , the brush stem 11 that is rotatably supported is caused to perform slow speed rotation. The user holds the handheld body 10 to perform makeup operation on the eyelashes. The selection of control for forward and backward rotation allows the user to select desired operation for the convenience of operation according to left hand operation or right hand operation. With the simultaneous exhibition of the vibration of the body 10 and the slow rotation of the brush stem 11 , the brush 12 can perform special curling operation or uniform application on the eyelashes, whereby both lash curling and uniform coating of liquid lash cosmetics can be done, making the makeup of eyelash with a lash brush uniform, time efficient, and material efficient. For the lash makeup brush container, the present invention features both brush rotation and vibration and is apparently a novel design of commercial products of this kind and also offers practical value.
As to the use and design of the vibratory lash brush that also features rotation of brush as provided by the present invention, the design of the transmission motor 13 can be made as a simple speed adjustable motor structure, which can be simply as illustrated in FIGS. 5 and 6 by providing a speed adjusting device 191 by the actuation switch 19 to simply follow the practical needs of makeup operations to simultaneously adjust rotation speed and vibration frequency, so that makeup operations performed by the whole lash brush can offer the practical efficacy of being better fit to humanization. As to the structure design of the whole transmission motor 13 , besides the two-in-on and coaxial arrangement of rotation/vibration structure shown in the drawings, it is also possible to use two small sized transmission motors 13 respectively coupled to the reduction device 14 and the eccentric weight block 141 to form an arrangement or connection structure, still offering the same operation efficacy of exhibiting both rotation and vibration, and they can respectively work with switching control arrangements to achieve the operation controls of doing simultaneous or independent vibration. Simple replacement of this arrangement is certainly considered within the scope of the present invention.
As to the use of the whole lash brush, when not in use, it is deposited inside the container 20 exactly the same as the operation of a regular lash makeup set and no special skill of operation is needed. In use, the body 10 is hand held and the motor 13 is controlled through the actuation switch 19 for starting. With the reduction device 14 , the rotational speed is reduced to low speed operation of 30-100 RPM, so as to make the brush stem 11 rotating in a low speed, whereby at the time when the brush 12 is put in contact with eyelashes for makeup operation, the liquid cosmetics may be uniformly applied and there is no need to worry about the liquid flying away due to centrifugal force and excessive vibration frequency and it can also help to curl the eyelash, allowing the eyelash makeup liquid cosmetics attached to the brush 12 to be efficiently conducted to and stay at tips of the brush hairs for continuous application, whereby a practical efficacy of uniformity and convenience of eyelash makeup operation is realized, remarkably improving the makeup quality of eyelash and simplifying the skill dependency of eyelash curling makeup and meeting the needs of safety and comfortableness of lash brush makeup operation. The overall structure depends on electrical rotation control assisted by vibration to provide a practical feature of making makeup operation easy, practical, and convenient, and it is actually an innovated product improvement for eyelash makeup tool.
To summarize, the vibratory lash brush with forward/backward control in accordance with the present invention directly couple a brush stem of a lash brush to a transmission reduction arranged inside the handheld body, together with an arrangement of weight block induced rotation controlled vibration on the opposite end, to allow the makeup operation with the brush to feature a practical efficacy of both eyelash curling and uniform and convenient liquid application, ensuring convenience of simple operation of makeup. In view of the practical efficacy of uniform application and simplification of eyelash makeup operation, the present invention surely provides a novel and initial creation of the lash brush.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.