MECHANISM OF AUTOMATIC TRANSMISSION Russian patent published in 2012 - IPC F16H57/02 F16H59/02 F16H3/00 

FIELD: machine building.

SUBSTANCE: mechanism of automatic transmission comprises primary shaft (1). Primary shaft (1) has rigidly fixed circuit plates (2) with spiral groove (3) along which crank pin (4) moves, spring (5) whose one end is attached to crank pin (4) and the other one is to shaft (1). Bushes (6) are loosely placed on primary shaft (1) as well as one bush onto another that are freely rotatable relative to one another and each rotatable relative to the shaft. There are ring gears (7) on the outer cylindrical surfaces of bushes (6). Each bush (6) has protrusion (8) on the butt end facing the circuit plate.

EFFECT: automatic change of transmission ratio.

3 dwg