TRANSMISSION DEVICE HAVING ENHANCED MECHANICAL EFFICIENCY OF POWER TRANSMISSION

摘要

PURPOSE: A transmission device is provided to improve tractive force and the efficiency of power delivery by delivering power through a mechanical path. CONSTITUTION: A driving shaft (400) delivers power generated by an engine. A first power delivery path delivers power of the driving shaft to an epicyclic gear unit (200). A second power delivery path delivers the power of the driving shaft to the epicyclic gear unit according to a transmission ratio of a stepless transmission unit (100). The second power delivery path delivers the power of the epicyclic gear unit to the driving shaft. The epicyclic gear unit is connected with the driving shaft through the first power delivery path and the second power delivery path. A stepless transmission unit is placed on the second power delivery path converting the power between the driving shaft and the epicyclic gear unit.