| 摘要 |
<p>The apparatus includes a hydrostatic stepless speed change section (20) that has a hydraulic pump (23) and a hydraulic motor (24) and receives an output of an engine (1), a planetary transmission section (3a) having first and second planetary transmission mechanisms (P1, P2) and first and second output members (41, 42), and configured to combine a drive force outputted from the hydrostatic stepless speed change section (20) and an engine drive force that has not been subjected to any speed change action by the hydrostatic stepless speed change section (20), and a speed change output section (3b) having an output shaft 70, the speed change output section being configured to output combined drives force outputted from the output members (41, 42) in a plurality of different speed ranges from the output shaft 70. The output members are respectively coupled to the second sun gear and to either the second carrier or the second ring gear of the second planetary transmission mechanism. A power takeoff shaft is operatively coupled to the pump shaft.</p> |
