| 摘要 |
<p>The LOW mode is established by the driving force of a driving source (E) being transmitted from a main input shaft (13) to a continuously variable transmission mechanism (20) via a first input path in which an input switching mechanism (24) and first speed reducers (25, 26) are disposed, and then being transmitted to a first output path in which second speed reducers (31, 34) are disposed. The HI mode is established by the driving force being transmitted from the main input shaft (13) to the continuously variable transmission mechanism (20) via a second input path in which the input switching mechanism (24) and speed-increasing gears (27, 28) are disposed, and then being transmitted to a second output path in which third speed reducers (29, 34) are disposed. Because the first speed reducers (25, 26) on the input side, the speed-increasing gears (27, 28) on the input side, and the second and third speed reducers (31, 29, 34) on the output side are mutually independent, differential rotation on the input switching mechanism (24) during switching between LOW mode and HI mode is eliminated while the freedom with which the rotational frequency input in the continuously variable transmission mechanism (20) in the LOW mode and the rotational frequency input in the continuously variable transmission mechanism (20) in the HI mode are set is increased.</p> |
