| 摘要 |
PROBLEM TO BE SOLVED: To enable occurrence of poor connection between a slide dog and a transmission gear to be restricted.SOLUTION: A transmission device (20) transmits a driving force of a crank shaft (11) to a driving wheel side from a first transmission (21) through a second transmission (22). The first transmission comprises a plurality of first transmission gears (38a) to (38d), a right side first slide dog (51) and a left side first slide dog (52) selectively connected to the first transmission gears. The second transmission comprises second transmission gears (43a), (43b) engaged with the first transmission gears, and the second slide dog (53) selectively connected to the second transmission gears. The transmission device (20) is further provided with a shift mechanism (23). The shift mechanism is provided with simultaneous connection avoiding means for making one timing in which the right side and left side first slide dogs are connected to the first transmission gears and the other timing in which the second slide dog is connected to the second transmission gears different from each other.SELECTED DRAWING: Figure 4 |
