Body support with variable rotation restriction

Abstract

A rail vehicle with a car body and a bogie including a bogie frame for holding wheels or wheel sets and a carrier connected to the bogie frame for supporting the car body is provided. A braking means is fastened between the carrier and the car body in order to provide running stabilization so as to dissipate a rotary movement between the car body and bogie by opposing the rotary movement with a counterforce. A preload means imparts an adjustable preload or pressure force to the braking means, wherein the preload is controlled during operation of the rail vehicle by a controller.

1 - 7 . (canceled) 
   
   
       8 . A rail vehicle, comprising:
 a car body; and   a bogie with a bogie frame for holding wheels or wheel sets and a carrier connected to the bogie frame for supporting the car body; and   a braking means fastened between the carrier and the car body, the breaking means being configured to dissipate a rotary movement between the car body and bogie by opposing said rotary movement with a counterforce,   wherein the braking means includes a preload means for imparting an adjustable preload.   
   
   
       9 . The rail vehicle as claimed in  claim 8 , wherein the braking means features at least one friction surface lying horizontally on the carrier and the car body side respectively that is arranged outside an axis of the rotational movement between car body and bogie frame, and wherein the friction surfaces of the carrier and of the car body are pressed onto each other with a pressure force set by the preload means. 
   
   
       10 . The rail vehicle as claimed in  claim 9 , wherein the preload means features a hydraulic plunger that presses the friction surfaces with adjustable pressure force against each other. 
   
   
       11 . The rail vehicle as claimed in  claim 8 , wherein the carrier is connected rigidly to the bogie frame or at least has a fixed connection in relation to rotations around a vertical axis. 
   
   
       12 . The rail vehicle as claimed in  claim 9 , wherein the carrier is connected rigidly to the bogie frame or at least has a fixed connection in relation to rotations around a vertical axis. 
   
   
       13 . The rail vehicle as claimed in  claim 8 , wherein a controller is assigned for the preload means for controlling the preload during the driving operation of the rail vehicle. 
   
   
       14 . The rail vehicle as claimed in  claim 9 , wherein a controller is assigned for the preload means for controlling the preload during the driving operation of the rail vehicle. 
   
   
       15 . The rail vehicle as claimed in  claim 11 , wherein a controller is assigned for the preload means for controlling the preload during the driving operation of the rail vehicle. 
   
   
       16 . The rail vehicle as claimed in  claim 13 , wherein the controller controls the preload as a function of the speed of the rail vehicle. 
   
   
       17 . The rail vehicle as claimed in  claim 14 , wherein the controller controls the preload as a function of the speed of the rail vehicle. 
   
   
       18 . The rail vehicle as claimed in  claim 15 , wherein the controller controls the preload as a function of the speed of the rail vehicle. 
   
   
       19 . The rail vehicle as claimed in  claim 16 , wherein the controller is configured to set the preload to zero when the speed drops below a predeterminable limit value. 
   
   
       20 . The rail vehicle as claimed in  claim 17 , wherein the controller is configured to set the preload to zero when the speed drops below a predeterminable limit value. 
   
   
       21 . The rail vehicle as claimed in  claim 18 , wherein the controller is configured to set the preload to zero when the speed drops below a predeterminable limit value.