Rail vehicle having supplementary spring providing the restoring moment at high angles of body roll

In a rail vehicle which comprises a car body, and running gear on which the car body is supported, stabilizer apparatus for countering tilting movements of the car body relative to the running gear in a range of such movements from low angle to high angle tiltings, the stabilizer apparatus

• including suspension means comprising pressure controlled air springs supporting the car body on the running gear, and
• an elongated torsion spring supported from one of the car body and the running gear, the torsion spring being connected at each of opposite ends thereof to the other of the car body and running gear by levers mounted at a first lever end on the said torsion spring opposite ends, with there being control rods extending from second ends of the levers to the said other of the vehicle car body and running gear,
• the pressure controlled air springs being operable to apply a stabilizing moment to counter car body low angle tilting movements,
• the first lever ends being connected to the torsion spring opposite ends with a coupling element, the coupling element including means for providing limited rotational play of the levers relative to the torsion spring in each of two opposite directions from a normal lever centered position and wherein during said limited rotational play a stabilizing moment applied by the torsion spring to counter body low angle tilting movements is less than that applied by the pressure controlled air springs, said providing means embodying a lever stopped position wherein the levers and the torsion spring are rigidly coupled so that the torsion spring applies a stabilizing moment for countering car body high angle tilting movements which is greater than any stabilizing moment the pressure controlled air springs can apply to counter said high angle tilting movements.