上泽充大￥ Involute profiles SHANCAAI HAD TONG UNVESmE How involute profile constructed? What are its geometric properties? Involute F 逝开线 OB b Pressurek K COS ak= Angle 「k向径 OK TK 压力角 String 发生线 Inyolute angle 展角 Base circle 基圆 上泽充夏大粤 Involute profiles © How involute profile constructed? What are its geometric properties? Shape of Involute profile is determined by K the size of the base circle. 日1 B2 3 B412 Involute profiles How involute profile constructed? What are its geometric properties? NO3 Involute 渐开线 String 发生线 Base circle 基圆 F 向径 Pressure Angle 压力角 K K K K vK rK rb Involute angle 展角 Involute profiles How involute profile constructed? What are its geometric properties? NO4 Shape of Involute profile is determined by the size of the base circle