Abstract: The present disclosure relates to an articulated-arm drive, in particular for a swing gate, with a drive unit comprising an output shaft and an articulated arm, wherein the articulated arm comprises a first and a second articulated-arm member, which are rotatably connected to each other by means of a first rotary joint, wherein the first articulated-arm member is connected or connectable to a stationary first pivot point at the end facing away from the first rotary joint, and wherein the second articulated-arm member is rotatably connectable to a gate at the end facing away from the first rotary joint. In accordance with the disclosure, the end of the first articulated-arm member facing away from the first rotary joint is not connected to the output shaft and the output shaft is connected to one of the articulated-arm members via a coupling arm.

Abstract: The present disclosure relates to an arrester device for closing apparatus, such as doors, comprising a worm gear rotationally fixedly connected to an output shaft serving as a winding shaft and a self-locking worm which is in communication with an input shaft. In accordance with the present disclosure, an auxiliary worm gear is seated on an eccentric region of the output shaft with clearance, with the auxiliary worm gear having an eccentricity of the same amount as the output shaft and being assembled such that the eccentricities are cancelled with respect to the axis of the output shaft, with the auxiliary worm gear being able to follow the movement of the worm gear without load via its toothed region.

Abstract: The present disclosure relates to an arrester device for closing apparatus, such as doors, comprising a worm gear rotationally fixedly connected to an output shaft serving as a winding shaft and a self-locking worm which is in communication with an input shaft. In accordance with the present disclosure, an auxiliary worm gear is seated on an eccentric region of the output shaft with clearance, with the auxiliary worm gear having an eccentricity of the same amount as the output shaft and being assembled such that the eccentricities are cancelled with respect to the axis of the output shaft, with the auxiliary worm gear being able to follow the movement of the worm gear without load via its toothed region.