| 摘要 |
<p>A motorised drive device for a door leaf which has a door leaf shaft (6) coupled thereto, to which the drive shaft (26) of a drive motor unit (5) contained in a drive housing (25) is connected via a torque transmission device contained in a gear casing (2, 3), which has an input shaft (7) connected to the drive shaft (26) of the drive motor unit (5) and an output shaft (8) connected to the door leaf shaft (6) which, looking perpendicularly to the longitudinal axis of these shafts (7, 8), is at a distance from the input shaft amounting to a multiple of the sum of the half-diameters of the intercoupled gear wheels arranged on these shafts. To reduce the torque-determined holding load for the drive unit (5), the drive casing (25) of the drive motor unit (5) is maintained fixed and secured (29, 30) to the transmission casing (2, 3) of the torque transmission device so as not to rotate in such a way that torques between the door leaf shaft (6) and the drive shaft (26) are exerted in the manner of a rigid lever.</p> |
