Disclosed is a door drive device, which is composed of a main drive (1) and an auxiliary drive (2). The aim is to obtain a drive which is practical and provides advantages to the door. In this respect, the drive assembly (2g) of the auxiliary drive (2) is configured as a drive assembly comprising a linear drive (2gks) and the drive assembly (2g) is mounted as an auxiliary drive in a pivot bearing (2gs) and the rod is configured as a sliding arm (2ka) and the rod bearing is configured as a slide rail (2ks).
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