公开(公告)号：US10033258B2

公开(公告)日：2018-07-24

申请号：US14868775

申请日：2015-09-29

申请人： Tatsunori Okawa ,  Yuki Takahashi ,  Chikara Sekiguchi ,  Shigenori Inamoto

发明人： Tatsunori Okawa ,  Yuki Takahashi ,  Chikara Sekiguchi ,  Shigenori Inamoto

IPC分类号： H02K33/16 ,  A61C17/34

摘要： A linear actuator that can achieve downsizing with a simple configuration, and can provide stable linear reciprocation while achieving improvement in assemblability and cost reduction. In the actuator, movable member 50 faces coil 21 in the winding axis CL direction of coil 21, and in addition, includes magnet 30 magnetized in the coil-winding axis CL direction in a unipolar fashion and output shaft 60 extending in the CL direction. Elastic body 70 is disposed along the coil-winding axis CL direction and configured to deform in that direction to supports movable member 50 such that movable member 50 can reciprocate along the coil-winding axis CL direction. Elastic body 70 is fixed to fixing body 40 and movable member 50 at both ends 71 and 72 in the coil-winding axis CL direction such that central air gap CG is formed between electromagnet 20 and magnet 30.