Patent ID: 8448536

Claim:
An actuating device for selecting a fixed gear ratio of a gear shifting transmission, the actuating device comprising: a shift lever ( 1 ) being movable between at least three gear positions, and a lockout mechanism for limiting a range of motion of the shift lever ( 1 ), for excluding certain shift lever positions, and blocking the shift lever ( 1 ), the lockout mechanism comprises a locking chamber assembly that includes at least one locking chamber ( 9 ) disposed in at least one actuatorically rotatable locking roller ( 2 , 3 ), and the shift lever ( 1 ) includes at least one locking cam ( 7 , 8 ), the locking cam ( 7 , 8 ) being engagable with the locking chamber assembly and inserted into the locking chamber ( 9 ) for limiting the range of motion of the shift lever ( 1 ).