| 摘要 |
<p>PURPOSE: To provide an electric tooth brush capable of correctly selecting and suitably displaying the duty action. CONSTITUTION: An electric tooth brush 140 includes a working device 100 and a charger 200. The working device has a supply unit 110, a control unit 120 and a drive means 130. A time measuring means for measuring the duty time in brushing, a pressure measuring means for measuring the pressure in brushing, a position selecting means for selecting the duty position in brushing, and a calculating means for calculating the duty action are arranged in the control unit 120. The correct selection of the duty action is controlled by the calculating means which calculates the duty action in accordance with the duty pressure and duty position.</p> |
