DRIVE SYSTEM FOR A TOOTHBRUSH USING A FLEXIBLE MEMBRANE FOR CLEANING TEETH

摘要

The power toothbrush includes a toothbrush body and a stem portion extending
from the toothbrush body which has a workpiece with a flexible membrane at a
remote end thereof, and a flexible membrane at a near end thereof as well. A
movable piston is positioned in the stem portion, as well as a fluid which is
in communication with the flexible membrane at the workpiece end of the
toothbrush and the flexible membrane at the near end of the stem portion. The
body includes a solenoid coil which, when actuated, moves the piston in
opposing directions in a controlled manner within the stem, which acts on the
fluid in the stem and moves the flexible membrane at the workpiece in and out
at a desired frequency and amplitude.