Patent ID: 7798937

Claim:
A countershaft transmission comprising a transmission input shaft ( 14 ) a main shaft ( 23 ) in alignment with the input shaft ( 14 ), a countershaft ( 15 ) which extends in parallel spaced relationship with the main shaft ( 23 ) and which can be decoupled when the transmission is in direct gear, and two input constants ( 17 , 18 ), for the transmission of power from the input shaft ( 14 ) to the countershaft ( 15 ) and a number of gear sets ( 32 - 35 ) for the transmission of power from the countershaft ( 15 ) to the main shaft ( 23 ) and an additional forward gear in a force flow from the input shaft ( 14 ) back to the main shaft ( 23 ) via the two input constants ( 17 , 18 ), one input constant ( 18 ) of the two input constants ( 17 , 18 ) having a loose wheel ( 22 ) which is arranged axially between first and second shift elements ( 16 , 40 ), whereby, by means of the first shift element ( 16 ), a rotationally fixed connection between said loose wheel ( 22 ) and the transmission input shaft ( 14 ) can be established, and, by means of the second shift element ( 40 ), a rotationally fixed connection between said loose wheel ( 22 ) and the main shaft ( 23 ) can be established.