| 摘要 |
<p>This electrical motor drive is used to roll up or down roller blinds or similar devices. The motor (1) has a switching assembly mounted on the end away from the roller. A spring-loaded (20) operating rod (10) can be used to operate one of two microswitches (25) by means of a chamfered end (23b). When the roller blind is to be raised, the rod is pushed upwards and splines (17) keep it up against the spring pressure. When the rod is pressed again and released, it is ready to be pressed to lower the blind having turned through 180 degrees, so that the chamfered end of the rod is facing the other microswitch.</p> |
