An adjusting mechanism of a movable component, particularly a soft top compartment cover of a convertible, which is movably mounted by means of at least one control arm (2) that is hingedly connected to the vehicle body. A crossarm gear (19, 20) is mounted between the control arm (2) and a drive unit (27, 28) of the adjusting mechanism. In order to improve the moving behavior of the movable component, the control arm (2) is coupled to a rotatably mounted crank (14) via a coupling rod (11). Said crank (14) is connected to a driving arm (21) via two crossarms (19, 20), the driving arm (21) being movable by the drive unit (27, 28).