Single sliding key type countershaft automatic transmission

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 3/089 (2006.01) F16H 3/083 (2006.01) F16H 3/091 (2006.01) F16H 3/12 (2006.01) F16H 3/16 (2006.01)

Patent

CA 2156933

A single sliding key type automatic transmission having an input (2) with a sliding locating tube (1), plural rotary gears (201, 202, 203, 204, 205, 206) rotatable on the input shaft (2). An actuating tip (5) rotating with the input shaft (2) moves axially to cause the engagement pins (4) to engage the selected gear (201) to the input shaft (2) so as to transmit rotation to the countershaft (34). The transmission having a motor (16) for synchronizing the rotation of the input shaft (2) to the counter shaft (34) during a gearshift and additional motors (15, 19) for actuation of the gear shift.

L'invention concerne une transmission automatique à arbre intermédiaire de type à clavette simple coulissante présentant un arbre d'entrée (2) comportant un tube de positionnement coulissant (1) et plusieurs pignons rotatifs (201, 202, 203, 204, 205, 206) pouvant pivoter sur l'arbre d'entrée (2). Une extrémité de commande (5) en rotation avec l'arbre d'entrée (2) se déplace axialement afin que les broches d'engrenage (4) provoquent la mise en contact du pignon sélectionné (201) avec l'arbre d'entrée (2) de façon à transmettre la rotation à l'arbre intermédiaire (34). La transmission comporte un moteur destiné à synchroniser la rotation de l'arbre d'entrée (2) et de l'arbre intermédiaire (34) pendant un changement de vitesse ainsi que des moteurs additionnels (15, 19) conçus pour commander le changement de vitesse.

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