Drive device for moving a leaf

A drive device used in a swing leaf door drive or in a sliding door drive or in a revolving door drive for moving a leaf with an electric machine comprising a single, stator and a single, rotor, configured to be rotated about a machine axis, and with a gear coupled to the electric machine, wherein the gear has a first gear element, configured to be rotated coaxially with the machine axis, wherein the first gear element is connected to the rotor in a rotationally-fixed manner,

• wherein the gear has a second gear element, which is operatively connected to the first gear element, and in that an axis of rotation of the second gear element runs in an installation space between the machine axis and an outer lateral surface of the rotor that is extended virtually in the axial direction of the electric machine or an outer lateral surface of the stator that is extended virtually in the axial direction of the electric machine,
• the drive device further comprising an output shaft which can be rotated about an output axis, for connection to a lever, wherein the output axis runs parallel or coaxial to the machine axis,
• and a closer module having a mechanical energy storage device, and a transmission element for translating a linear movement of the mechanical energy storage device into a rotational movement of the transmission element,
• wherein the closer module comprises a closer wheel which is operatively connected to the energy storage device, by the transmission element,
• wherein the gear has an output wheel which is coaxial and rotationally-fixed with the output shaft, with the output wheel being engaged with the closer wheel.