Power transfer device

Claim 1

A power transfer device for a vehicle comprising: a power input part; an intermediate gear mechanism including three members, an intermediate input gear supported by said power input part in a driving relation; an intermediate output gear meshing with said intermediate input gear and a first gear (23) meshing with said intermediate input gear (20); a first shaft being in meshing engagement and fixedly connected to said first gear of said intermediate gear mechanism; a second shaft coaxially and rotatably journaled to said first shaft, forming a joint portion; a stationary member mounted on a stationary portion of the vehicle; a dog clutch mechanism housed at said joint portion of said first shaft and said second shaft and having a lock gear mechanism for selectively controlling the connection of said intermediate output gear with said first shaft, said second shaft and said stationary member; and a control mechanism connected to said dog clutch mechanism, wherein, said dog clutch mechanism comprises: an input part which is mounted at a peripheral portion of said first shaft and is connected to said intermediate output gear a second output part which is in meshing engagement and fixedly connected to said second shaft; a first auxiliary output part which is in meshing engagement and fixedly connected to said first shaft and is housed between said input part and said second output part; said dog clutch mechanism is selectively connectable to said stationary member, said input part, said second output part and said first auxiliary output part and includes said lock gear mechanism which can be actuated by said control mechanism for selectively connecting said lock gear mechanism with said stationary member, said input part, said second output part and said first auxilliary output part.