| 摘要 |
An automated gear change (1) for an automobile vehicle, in particular for an industrial vehicle, provided with an input shaft (2), an output shaft (3), a geared transmission (4) interposed between these input and output shafts (2, 3) and including an auxiliary shaft (7) and a plurality of gears (8) mounted in an angularly idle manner with respect to this output shaft (3) and a plurality of engagement members (16, 32) for each gear (8) that can be selectively actuated in order to make this gear (8) angularly rigid with the output shaft (3); each engagement member (16, 32) is mounted to slide in a respective pair of seats (18, 17; 34, 33) that face one another and communicate and are associated with the relative gear (8) and, respectively, with the output shaft (3), and can move between a first disengaged operating position in which it exclusively engages one of the seats (18, 17; 34, 33) and a second engaged operating position in which it engages both the seats (18, 17; 34, 33); the gear change (1) is further provided with actuation means (21) of electromagnetic type in order to control the displacement of each engagement member (16, 32) between these first and second operating positions. <IMAGE> <IMAGE> |
