上活我大峰 Graphical linkage synthesis 1 Grashoff non-quick return crank-rocker Draw O,B in two Link 3 extreme positions Draw chord B.B2 in Link 2 either direction Select point O2 。 Bisect B,B,and draw circle of that radius at 02 0 Crank-O,A,Coupler AB Rocker O,B,Ground 0204 09 Your choice 圈上泽庆大坐 Graphical linkage synthesis 1.Grashoff non-quick return crank-rocker (b)Finished linkage Link 3 Link 2 B Link 4 Link Link 3 8Graphical linkage synthesis 7 • Draw O4B in two extreme positions • Draw chord B1B2 in either direction • Select point O2 • Bisect B1B2 and draw circle of that radius at O2 • Crank-O2A, Coupler AB, Rocker O4B, Ground O2O4 45° 1 Grashoff non-quick return crank-rocker 8 1. Grashoff non-quick return crank-rocker Graphical linkage synthesis