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Shifting gear mechanism 2a

 

The violet lever can turn in vertical and horizotal planes to control two racks carrying shifting forks. Each rack has 3 working positions. The control lever pushes or pulls the blue shaft and the orange bush to turn the pink gear sector. There is a helical joint between the orange bush and the pink gear sector. There is a sliding key joint between the orange bush and the popcorn housing. The control lever turns the blue shaft and the yellow gear sector. There is a sliding key joint between them. The brown part can only rotate (no translation) in the popcorn housing.


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