ELEKTROMECHANISCHER DREHFLÜGELANTRIEB FÜR SCHWENKFLÜGEL VON TÜREN ODER DERGLEICHEN.

摘要

PCT No. PCT/EP92/00013 Sec. 371 Date Sep. 8, 1993 Sec. 102(e) Date Sep. 8, 1993 PCT Filed Jan. 4, 1992 PCT Pub. No. WO92/12318 PCT Pub. Date Jul. 23, 1992.The electro-mechanical drive includes an electric motor, a transmission and a restoring spring. To improve the capacity to close the door, particularly in the event of a power failure, a large coil spring used as the restoring spring surrounds the electric motor and transmission. The electric motor is short circuited when not powered in order to create a generator effect with consequent damping during movement of the door.