Electromechanical drive for garage door, has drive motor moving along guide rail using drive wheel, and has sliding current pickups touching conductor rails with insulator bodies at ends

摘要

A control circuit (4) is connected to two conductors (16,17). The first conductor is connected to two conductor rails (6,7) in parallel. The first rail has an insulating body (5) near the control circuit and the second has an insulating body (9) at the end remote from the control circuit. First and second current pickups (10,11) touch the first and second conductor rails and are connected to a first terminal (15) of the direct current motor (1) via diodes of opposed polarity. A third current pickup (12), connected to the second terminal (14) of the motor, touches a third conductor rail (8), connected to the second conductor.