公开(公告)号：US11428318B2

公开(公告)日：2022-08-30

申请号：US17429308

申请日：2019-12-03

申请人： JATCO LTD

发明人： Shinjiro Ooki

IPC分类号： F16H63/34 ,  F16H1/46 ,  F16H37/06 ,  F16H57/021 ,  F16H57/02

摘要： A power transmission device includes a planetary gear, a reduction gear connected downstream of the planetary gear, a parking lock mechanism including a parking pawl configured to lock one rotation element of the planetary gear, and a barrier wall positioned between the planetary gear and the reduction gear. The parking pawl is rotatably supported on the barrier wall.