| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission having many speed change ratios, by realizing combination of corresponding speed change shifts by switching permutations. SOLUTION: This transmission has a dual friction disk clutch connecting a first friction disk K1 to a first input shaft S1.1 and a second friction disk K2 to a second input shaft S1.2, a gear belonging to a gear pair is arranged on the first/second input shafts S1.1, S1.2, to be meshed with a gear on countershafts S2, S3, an output shaft is formed by providing an output drive pinion FD in at least one shaft S2 of the countershafts, and the respective gear pair has a fixed gear and loose gear. The two loose gears G1, G2 and G3, G4 are arranged in the first/second input shafts S1.1, S1.2 together with synchronizers SU1, SU2 arranged between these loose gears, two pairs of loose gears G5, G6 and G7, G8 are arranged in the countershaft S2 together with synchronizers SU3, SU4 arranged between these loose gears, and the first input shaft S1.1 can be connected to the second input shaft S1.2 through a synchronous clutch CLS. |
