Carrier 1 rotates about fixed axis A and is connected by turning pair B to planet gear 2 which meshes with fixed sun gear 3. Link 4 is connected by a turning pair to carrier 1 and carries roller 5 which rolls and slides along profiled groove a of fixed face cam 7. Groove a is designed so that tip D of link 4 describes path q, when carrier 1 rotates, which is a rectangle with rounded corners.
$3305$GrC,ML$