公开(公告)号：US10731398B2

公开(公告)日：2020-08-04

申请号：US15683323

申请日：2017-08-22

申请人： Mabuchi Motor Co., Ltd.

发明人： Ryoichi Sugita ,  Toru Imai

IPC分类号： F16D59/00 ,  E05F15/697 ,  F16D51/62 ,  F16D65/16 ,  F16D63/00 ,  F16D65/22 ,  F16H1/16 ,  F16D127/00

摘要： A reverse rotation prevention mechanism is provided on a torque transmission path between an output shaft and a driving shaft of a motor. The reverse rotation prevention mechanism includes: a first frictional force generation unit configured to inhibit a lock plate provided on the torque transmission path from rotating relative to another member when an external force is exerted on the output shaft; and a second frictional force generation unit configured to generate a braking force that prevents reverse rotation when an external force is exerted on the output shaft by causing a portion of the lock plate to be pressed. The first frictional force generation unit is provided in an area different from the second frictional force generation unit.