VEHICLE STEP PROPULSIVE DEVICE Russian patent published in 1994 - IPC

FIELD: vehicles. SUBSTANCE: propulsive device has link 1 mounted on a drive shaft, additional crank 2 connected to crank 3. Crank 3 is pivotally connected to connecting rod 4 which middle part is pivotally connected to a body through link 5. The other end of the connecting rod is pivotally connected to bearing post 6 which upper end is movably mounted in rolling slider 7, and the lower end is pivotally connected to a bearing journal. At uniform rotation of link 1 the lower end of post 6 moves on the bearing section of the trajectory approximately uniformly. The lower end of post 6 is in contact with the ground for more than half the cycle. EFFECT: improved structure. 1 dwg