Lash brush

Abstract

A lash brush includes a case, a rotatable shaft, a plurality of bristles and a reciprocating transmission mechanism, the rotatable shaft is driven into reciprocal motion along an axial line by the reciprocating transmission mechanism, a first unit of the reciprocating transmission mechanism comprises an actuating surface having a plurality of spacing members, a second unit of the reciprocating transmission mechanism comprises a contacting terminal contacting against each of the spacing terminals in sequence to make the rotatable shaft vibrate back and forth instantaneously along the axial line.

What is claimed is: 
     
         1 . A lash brush includes:
 a case having a ring wall, a bottom portion and an accommodating slot surrounded by the ring wall;   a rotatable shaft having a first end portion and a second end portion;   a plurality of bristles coupled to the first end portion of the rotatable shaft; and   a reciprocating transmission mechanism for driving the rotatable shaft, the reciprocating transmission mechanism includes a first unit and a second unit contacting against the first unit, the first unit comprises an actuating surface having a base surface and a plurality of spacing members alternately formed on the base surface, the second unit comprises a contacting terminal, when the first unit is in rotation, the contacting terminal contacts against each of the spacing members in sequence.   
     
     
         2 . The lash brush in accordance with  claim 1 , wherein the first unit of the reciprocating transmission mechanism is selected from one of a cylindrical cam or an end cam. 
     
     
         3 . The lash brush in accordance with  claim 2 , wherein the actuating surface of the reciprocating transmission mechanism is disposed on a transmission surface of the cylindrical cam or a transmission surface of the end cam. 
     
     
         4 . The lash brush in accordance with  claim 2 , wherein the reciprocating transmission mechanism further includes a third unit, and one end of the third unit is in contact against the transmission surface of the end cam. 
     
     
         5 . The lash brush in accordance with  claim 2 , wherein the actuating surface of the reciprocating transmission mechanism is disposed on an outer peripheral surface located outside a transmission surface of the cylindrical cam or an outer peripheral surface located outside a transmission surface of the end cam. 
     
     
         6 . The lash brush in accordance with  claim 5 , wherein the actuating surface of the reciprocating transmission mechanism is disposed on a bottom surface of a cyclic slot of the cylindrical cam. 
     
     
         7 . The lash brush in accordance with  claim 1 , wherein the second unit of the reciprocating transmission mechanism is disposed on the ring wall and located in the accommodating slot. 
     
     
         8 . The lash brush in accordance with  claim 7 , wherein the reciprocating transmission mechanism further includes an elastic member, one end of the elastic member contacts against the bottom portion, and another end of the elastic member contacts against the first unit. 
     
     
         9 . The lash brush in accordance with  claim 1 , wherein the spacing members are selected from protrusions protruded from the base surface or slots recessed to the base surface. 
     
     
         10 . A lash brush includes:
 a rotatable shaft;   a plurality of bristles coupled to one end of the rotatable shaft; and   a reciprocating transmission mechanism for driving the rotatable shaft into reciprocal motion along an axial line, wherein the reciprocating transmission mechanism includes a first unit and a second unit, the first unit comprises an actuating surface having a base surface and a plurality of spacing members alternately formed on the base surface, the second unit comprises a contacting terminal, when the first unit is in rotation, the contacting terminal contacts against each of the spacing members in sequence to make the first unit vibrate reciprocally.   
     
     
         11 . A lash brush includes:
 a rotatable shaft, one end of the rotatable shaft comprises a plurality of bristles; and   a reciprocating transmission mechanism utilized for driving the rotatable shaft into rotation and reciprocal linear motion along an axial line, wherein the reciprocating transmission mechanism includes a first unit and a second unit contacting against the first unit, the first unit comprises an actuating surface having a plurality of spacing members alternately disposed from one another, the second unit comprises a contacting terminal, when the first unit is in rotation, the contacting terminal contacts against each of the spacing members in sequence to make the bristles vibrate reciprocally along the axial line or a direction perpendicular to the axial line.