Descriptions:
One way clutch 1
The pink input disk rotates two ways but the transmission to the yellow disk is possible only for one.
The mechanism should be used for low speed because of collision.
One way clutch 2
The cyan input shaft rotates two directions but the transmission is possible only for one. The rotation
direction that tends to wind the spring is transmitted to the yellow output shaft due to friction force between the spring and the shafts. For the inverse direction the yellow output shaft may rotate if there is no braking force or load applied to it.
The helix spring needs not be fastened at either end; a slight interference fit is acceptable.
The spring helix direction decides the transmission direction.
One way clutch 3
The cyan input shaft rotates two directions but the transmission is possible only for one by the pink spring.
The rotation direction that tends to wind the pink spring is transmitted to the yellow output shaft due to friction force between the pink spring and the shafts.
The blue bush is stationary. The orange spring is for keeping the yellow output shaft immobile when it stops.
The helix springs need not be fastened at either end; a slight interference fit is acceptable.
The spring helix direction is the key factor for this mechanism.
One way clutch 4 (helical gear)
The blue input shaft rotates two directions but the transmission is possible only for one. The pink shaft moves longitudinally when the input shaft reverses because of axial component of gear force in the helical gear drive. The mechanism should be used only for low speed because of gear collision.
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