| 摘要 |
A bidirectionally rotatable mechanism for separately driving two unidirectionally rotatably driven devices is disclosed. The mechanism includes a bidirectionally driving external rim that encompasses a bidirectionally driven internal device that supports two oppositely axially aligned lever arms. The external rim is pin coupled to slots in the ends of the lever arms such that rotation of the external rim in the clockwise or counterclockwise direction rotates one or the other of the lever arms into axial alignment and also rotates the internal device in the like clockwise or counterclockwise direction. The one axially aligned lever arm then engages an associated unidirectionally rotatably driven member. |
