Patent ID: 7866232

Claim:
A commercial vehicle transmission with a main transmission group ( 7 ) followed by a downstream group ( 12 ) having a main group shaft ( 10 ), a downstream group shaft ( 22 ) mounted by means of rolling bearings directly opposite the main group shaft ( 10 ) and at least one downstream group countershaft ( 15 a , 15 b ), and means for decoupling the at least one downstream group countershaft ( 15 a , 15 b ) from the rotary motion of the downstream group shaft ( 22 ) when the downstream transmission group ( 12 ) is in direct through-drive, the means for decoupling the at least one downstream group countershaft ( 15 a , 15 b ) being a first downstream group shift element (S 4 ) which, in a rear position, connects the main group shaft ( 10 ) to the downstream group shaft ( 22 ) for direct through-drive and, in a front position, connects an idler wheel ( 14 ), which meshes with a fixed wheel ( 16 b ) of the downstream group countershaft ( 15 a ) to the main group shaft ( 10 ) for rotation therewith.