Rotating drive device for spring curtain, shutter or the like, comprising on the one hand an electric motor with a tubular casing intended to be housed in the winding tube of the curtain, shutter or the like, the motor shaft being kinematically connected in rotation to the winding tube, a first device that is intended to rotationally immobilize the crankcase during engine operation, a second device to rotationally immobilize the winding tube with respect to the tubular crankcase, when the engine does not work, an automatic stop device able to cut off the motor supply after a certain number of turns of the motor shaft. (Machine-translation by Google Translate, not legally binding)
展开▼