| 摘要 |
An angular velocity profile generator [ 22,24] comprising an input shaft [ 46 ], an output shaft [ 56 ], a universal joint coupling the shafts by pivot pins [ 70,75] situated on two pivot axes which are normal to one another, means [ 49 ] in the joint for varying the path of rotation of the pin [ 70 ] relatively to that of the pin [ 75 ], a first control arrangement [ 32 ] for varying the angle between the shafts and a second control arrangement [ 84 ], external to the universal joint, connected to the pivot pin path varying member which is activated by the first control arrangement to suit a specific velocity profile produced by the generator. The invention extends to an infinitely variable transmission machine including transmission stages [ 16 ] which each include two of the profile generators connected in series and an angular velocity profile portion extraction device. |
