| 摘要 |
A replacement head (10) for an electric toothbrush drive unit having a driveshaft that oscillates about a longitudinal axis. The replacement head (10) includes a bristle head (12), and a brush shaft (20). The brush shaft (10) cooperates with the drive shaft of the drive unit to produce angular movement of the bristle head at a reduced angle and torque to provide a comfortable and effective user experience. |
