Patent ID: 7272985

Claim:
A transmission device ( 1 ), of a countershaft design, having one input central shaft ( 5 ) and one input hollow shaft ( 6 ) disposed concentrically thereto and two powershift elements ( 2 , 3 ), wherein one half of the shifting elements ( 2 , 3 ) is operatively connected with a drive unit and a second half of the shifting elements ( 2 , 3 ) is connected with the input central shaft ( 5 ) or the input hollow shaft ( 6 ) and wherein the input central shaft ( 5 ), the input hollow shaft ( 6 ) and countershafts ( 9 , 12 ) are supported in a housing ( 16 ) and operatively connected with gear wheels ( 7 , 8 , 9 B to 9 E, 10 , 11 , 12 A, 13 A to 13 E) which are engagable as gear wheel pairs (ZP 1 to ZP 7 ) that can be connected and disconnected for producing a transmission total ratio in the power flow, the input central shaft ( 5 ) is directly supported in the housing ( 16 ) in the area of its end remote from the drive unit, via a first bearing device ( 15 ), and in the area of its second end facing the drive unit, via a second bearing device ( 17 ) on a shaft ( 2 A, 4 ) operatively connected with the drive unit, the input hollow shaft ( 6 ) being supported upon the input central shaft ( 5 ) via a third bearing device ( 18 ) and a fourth bearing device ( 19 ).