| 摘要 |
<p>An electric motor driving gear has an electric motor, a gear train transmitting power from the motor to an output shaft and at least one detector member moving in connection with the output shaft. There is a detector switch including at least one sensor to detect the detector member when there is any physical contact between the detector switch and detector member. There is a control switch, and a circuit to control electric current supply to the motor in accordance with the signals from both switches.</p> |
