| 摘要 |
Apparatus is disclosed for arresting the motion of a motor driven panel wherein an electrical conductor along an exposed edge of the panel is connected to an electrical sensing circuit. The presence of an object in contact with the electrical conductor is sensed by the sensing circuit, which then operates a switching device. The switching device disconnects drive power to the motor, preventing motion of the panel for as long as the object is in contact with the electrical conductor. |
