Patent ID: 6321612
Filing Date: 2001-11-27
Classification: F16H,Y10T

Abstract:
An actuating device for the automatic operation of a gear change in a standard transmission having a plurality gears corresponding to a plurality of translation ratios arranged in a shifting gate having at least two shift paths, said actuating device comprising:a rotatably and axially movable selector shaft operatively connectable to said transmission for selecting one of the plural gears, said movable selector shaft being movable in a first direction and a second direction, said first direction comprising one of rotation direction and an axial direction and said second direction comprising the other one of said rotation direction and said axial direction;a guide mechanism arranged on said selector shaft comprising at least one constraint guide defining a movement path of said selector shaft for effecting a gear change between two of said plural gears, said movement path requiring a movement of said selector shaft in said first direction and a movement of said selection shaft in said second direction;a first drive operatively connected to said selector shaft via said guide mechanism and individually actuatable for moving said selector shaft in said first direction; anda second drive operatively connected to said selector shaft for providing an operating force having a first force component along an axial direction of said selector shaft and a second force component along a circumferential direction of said selector shaft, said second drive being individually actuatable for moving said selector shaft both said axial direction and said rotation direction along said movement path for effecting said gear change while said first drive and said guide mechanism remain in a fixed position.