| 摘要 |
A transmission is provided in which gears (31 to 34) of a first gear group provided on a first auxiliary input shaft (13) to which driving force of a main input shaft (12) is transmitted via a first clutch (24) and gears (37 to 39) of a second gear group provided on a second auxiliary input shaft (14) to which the driving force of the main input shaft (12) is transmitted via an idle gear (17 to 19) and a second clutch (25) use in common gears (43 to 46) of a third gear group provided on an output shaft (16), whereby it becomes possible to cut the number of components and reduce the dimensions of the transmission. Further, since the advance/retard relationship between the timing with which the first and second clutches (24, 25) are switched over and the timing with which the synchronizing devices (35, 36, 41, 42) are switched over can be freely chosen when establishing any of the gear positions, it is possible to prevent the occurrence of shift shock due to timing lag, thus enabling gear shifting to be carried out smoothly. |
