Patent ID: 6993991

Claim:
A gear selector device for a motor vehicle transmission comprising: a transmission shaft ( 1 ) having a single axial bore ( 11 ), and a plurality of gear wheel systems ( 2 , 3 , 18 , 19 , 4 , 20 , 45 , 46 ) offset from each other in an axial direction along the transmission shaft ( 1 ), each gear wheel system ( 2 , 3 , 18 , 19 , 4 , 20 , 45 , 46 ) including: at least one gear wheel ( 2 , 3 ; 18 , 19 ) rotatably mounted on the transmission shaft ( 1 ), and a sliding sleeve ( 4 , 20 ) unrotatably and axially movably supported on the transmission shaft ( 1 ) so that the sliding sleeve ( 4 , 20 ) can be independently and selectably coupled with at least one of the at least one gear wheel ( 2 , 3 , 18 , 19 ) by axial displacement of the sliding sleeve ( 4 , 20 ), wherein the axial displacement results of the sliding sleeve ( 4 , 20 ) is actuated by a corresponding shifting device ( 45 , 46 ) that is independently and selectably actuatable by a pressure medium provided through a corresponding pressure medium supply hole ( 10 , 26 ) extending from the axial bore ( 11 ) of the transmission shaft ( 1 ), and a pressure medium pipe ( 7 ) supported and axially movable in the axial bore ( 11 ) of the transmission shaft ( 1 ) and having an axially extending pressure medium hole ( 6 ) connected with an axially extending displacement space ( 8 ) on the periphery of the pressure medium pipe ( 7 ), whereby the shifting device ( 45 , 46 ) of a selected one of the plurality of gear wheel sets is selected for actuation by axial movement of the pressure medium pipe ( 7 ) to position the displacement space ( 8 ) in a region of the corresponding pressure medium supply hole ( 10 , 26 ).