| 摘要 |
The present invention relates to a rotary drive for at least one leaf/casement, in particular a door leaf or a window casement, comprising: at least one output shaft (330) for coupling to the at least one leaf/casement; at least one motor (20), which acts on the output shaft (330) via at least one downstream gear mechanism (30); an energy-store module (112), which has a linear line of action and uses transmission elements (14, 32, 326) to subject the circumference of an eccentric cam disc (331), arranged in a rotationally fixed manner on the output shaft (330), to pressure; and an intermediate shaft (320), which is offset in relation to the line of action of the energy-store module (112) and is provided between the motor (20) and output shaft (330). The rotary drive is characterized in that the transmission elements (14, 32, 326) comprise a roller lever (32), which is mounted in a rotatable manner on the intermediate shaft (320) and has a cam-follower roller (326) spaced apart from the intermediate shaft (320), wherein the cam-follower roller (326), pressed circumferentially against the eccentric cam disc (331), interacts with the output shaft (330), and the energy-store module (112) is arranged on the motor side in relation to the intermediate shaft (320). The present invention also relates to a clamping piece for connection to the output shaft (330), wherein the clamping piece has a lateral lever which interacts with an eccentrically mounted and steplessly adjustable stop element. |
