Patent attributes
Rotary device for transferring containers, with a base (21) rotating about an axis (23) and supporting a mobile assembly (25) comprising: a main arm (26) pivoting (27) on the base, a gripping pincer (30) at the free end of the main arm, and a rotary roller (32) which is solidly connected to the main arm and interacts with a fixed curvilinear cam (33) with a closed contour; the pivot shaft (27) and the free end of the main arm define a line (L) which extends approximately tangentially to the circular trajectory of the pivot axis, which precedes the free end of the arm in the direction (F) of rotation of the base; the cam is such that, when the base rotates, the end of the main arm is moved approximately radially; and the gripping pincer mounted on the free end of the main arm follows a predetermined circular path, having inverse convexity with respect to the trajectory of the rotary base, within a fixed angular range (α) of rotation of the base.