Electric door opener for attaching to door for electrically opening locked door, has drive actuated by electronics, where stopping of drive selectively takes place by limit switch with touch or contact of door knob, by inclination sensor

摘要

The electric door opener has an electric motor, a pump, an electromagnet, bimetal or an electrically controllable drive, where the operation of a door knob (3) takes place by gravity and weight distribution by the electric motor. The motor, the pump, the electromagnet, the bimetal heater or the drive is actuated by electronics (8). The stopping of the drive selectively takes place after a determined time by a limit switch (11) with touch or contact of the door knob, by an inclination sensor by counting the rotation of the motor or after a determined number of steps in the step motor.