Power transmission mechanism

The invention provides a power transmission mechanism capable of improving lubricity between a side gear and a carrier by easily supplying lubricating oil between the side gear and the carrier. The power transmission mechanism includes a differential mechanism (4) having a housing (5) and a pair of side gears (7). The side gears (7) are disposed so that parts of the side gears (7) overlap each other at a predetermined interval in the axial direction thereof, and an inflow part (16) and an outflow part (17) are provided at the locations where the side gears (7) overlap each other. The inflow section (16) and the outflow section (17) are disposed so as to be offset in the axial direction. The outflow section (17) is disposed between the tooth flanks of the side gears (7) in the axial direction. 本发明提供一种动力传递机构，通过将润滑油容易地供给至侧齿轮与齿轮架之间，可提高侧齿轮与齿轮架之间的润滑性。动力传递机构包括具有壳体(5)以及一对侧齿轮(7)的差速机构(4)。侧齿轮(7)以各侧齿轮(7)的一部分彼此在其轴向上隔开规定间隔重叠的方式配置，且在以重叠的方式配置的部位设置有流入部(16)以及流出部(17)。流入部(16)以及流出部(17)在所述轴向上偏移地配置。流出部(17)在所述轴向上配置在各侧齿轮(7)各自的齿面彼此之间。