| 摘要 |
A switching arrangement for a rotating toothbrush which includes a rectangular casing accommodating the electric motor has a gravity switch provided in the housing and a switch actuated manually and provided externally on the housing. As a mercury gravity switch, a sensor is used, which consists of a tube closed at each end thereof and provided with a respective bottom portion at each end. Through each of the bottom portions at a lateral location, a conductor wire projects wherein through one of the bottom portions a further conductor wire projects whose forward portion within the tube is arranged at a distance to the wall of the tube and extends parallel to the conductor wires and leads almost to the end of the other bottom portion.
|
