Frame advancing mechanism for karussel of mechanical timepiece, has retaining unit cooperating with frame and including trajectory interfering with trajectory of arresting unit, where retaining and arresting units are exterior to frame

摘要

The mechanism (100) has a movement transmission wheel (20) driven by an input driving unit (10) for driving a frame (30) and an escapement pinion (21) in a pivoting manner. A retaining unit (70) pivotingly cooperates with the frame to enable or prevent the pivoting movement of the frame when the retaining unit is moved or not moved. The retaining unit has a trajectory interfering with a trajectory of an arresting unit (60), where the retaining and arresting units are exterior to the frame.