Arm mechanism, especially for handling, with a translatory motion followed by a rotary motion

The mechanism has a jack (9) that translates a slide bar (4) which drives an arm (1) that translates with respect to a frame (5). The frame comprises a ramp (8) on which a roller (31) is mounted. The roller is mechanically connected to the arm provoking the misalignment of a rotation axle (11) of the arm with respect to a rotation axle (3). The thrust of the jack produces a torque for rotating the arm.