| 摘要 |
The apparatus for the in phase coupling and uncoupling of a kinematic mechanism with respect to another such mechanism to which a stepwise rotary movement is imparted, comprises a driving toothed gear to which the stepwise rotary movement is imparted; a driven toothed gear which is to be controlled and stopped as desired in phase with respect to said driving member; intermediate drive means connected between the driving member and the driven member and movable between a first condition in which the stepwise rotary movements of the driving member are transmitted to the driven member and a second condition in which the driven member is maintained stationary. The movement of the intermediate drive means is controlled by a rotary cam. |
