Abstract: A drive mechanism for a device with two operating parts, which are connected so as to be pivotally displaceable relative to each other between a first position and a second position about a common axis of rotation. The drive mechanism has a driving mechanism such that a movement from the first position to the second position can be initiated initially by a slight movement and the additional movement is then effected automatically through spring force (F) until the second position has been reached. The movement out of the first position into the second position is possible in either a clockwise and counterclockwise movement. The driving mechanism comprises a driven part, one operating part and two drives that are in the form of a force storing device The force storing devices interact with the driven part in opposing directions in such a manner that only the one for storing device is in driving connection with the driven part while the other force storing device is retained in its starting position.

Abstract: The present invention relates to a drive mechanism (8) for a device (1) with two operating parts (2, 4), which are connected so as to be pivotally displaceable relative to each other between a first position and a second position over a certain pivotal angle (?) about a common axis of rotation (6). The drive mechanism (8) has driving means (10) such that, proceeding from the first position, a movement in the direction of the second position can be initiated initially in a manual manner by means of a slight movement and the additional movement is then effected automatically through spring force (F) until the second position has been reached. The movement out of the first position into the second position, in this case, is possible in an arbitrary direction of movement, clockwise or counterclockwise.