Pivot drive and piece of furniture

A pivot drive (30) for a movable piece of furniture (3, 25, 25') comprises an actuating arm (32), which is mounted such that it can be pivoted about an axis of rotation (31), a spring assembly (33), having at least one spring guided linearly in a working direction, a pressure-exerting component (34, 34'), which is connected to the spring assembly (33) and can be displaced along a control curve (35, 35'), and a housing (21), on or in which the pivot drive is mounted, wherein the actuating arm (32) is connected in a rotationally fixed manner to the spring assembly (33) and can be pivoted therewith about the axis of rotation (31), and it is possible to adjust the control curve (35, 35') relative to the axis of rotation (31), in order to set the spring force of the spring assembly (33), and/or it is possible to adjust the force by which the spring assembly (33) acts on the control curve.