VIBRATION ISOLATOR WITH CONTROLLED RIGIDITY FOR VEHICLE CAB Russian patent published in 2018 - IPC B62D33/06 F16F15/23 B62D33/08 

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Vibration isolator consists of two levers of the same length placed symmetrically from each side of the car below the cockpit. Levers are located at the same angle to the vertical, tilted in opposite directions and pivotally connected to the cab through the upper cushioning sleeves. On the frame parallel to the longitudinal axis of the vehicle are rigidly fixed two double-piston hydraulic cylinders of one-way action. Levers are pivotally connected to the rods of the hydraulic cylinders through the lower cushioning sleeves and axles. Rods of hydraulic cylinders are hinged with rollers. Rollers are connected to the guide surfaces rigidly fixed to the frame. Two double-lock brake hydraulically controlled brakes are rigidly fixed on the cab. Brake shoes are connected to drums, which are rigidly mounted on two transverse axes, pivotally connected to the brackets of the cabin. Outer bushings are rigidly connected to the levers, and the inner bushings to the transverse axes.

EFFECT: vibration of the protected vehicle object is reduced.

1 cl, 4 dwg