Abstract: The invention relates to a drive device (1), essentially including a motor (26) and a gearbox (27, 83) and a control system (123), for the automation of a door, preferably a garage door, with a connection (120) to a force transmitting means (46) revolving within the drive track (4) and driven by means of the motor (26), wherein the gearbox (27, 83) includes a worm (29) and is equipped with two opposing motor connectors (57, 58), to which selectively a motor (26) or (28) or simultaneously both motors (26, 28) can be connected, wherein the motors (26, 28) act upon the common worm (79), the rotational movement thereof being transferred onto a worm wheel (100), which directly or indirectly acts like a gearbox onto the force transmitting means (46).

Abstract: The invention relates to an enclosure for a drive unit (1) for the automation of a garage door, wherein the drive unit (1) includes a connection to a drive track (4), which is provided with revolving force transmitting means (19), the enclosure as a two-part housing consists of a lower housing part (2) and an upper housing part (32, 54), wherein the lower housing part (2) includes a straight planar housing underside (37) the border areas (15) thereof being provided with roundings (8) and thereto adjoining essentially straight lateral sections (9), and in that the upper housing part (32, 54) is fitted onto the lateral sections (9), wherein the exterior contour includes transitions (11), which are configured as curved extensions, which merge into a straight housing back side (7), which is configured essentially parallel to the housing underside (37), wherein the surface content of the housing back side (7) is smaller than the surface content of the housing underside (37).