公开(公告)号：US10780439B2

公开(公告)日：2020-09-22

申请号：US16118607

申请日：2018-08-31

Applicant: Industrial Technology Research Institute

Inventor： Chang-Min Lin ,  Wei-Chieh Chang ,  Hsuan-Yu Huang

IPC: B01L3/00 ,  G01N35/04 ,  B67B3/20 ,  B25B23/142

Abstract: A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.

公开(公告)号：US10961100B2

公开(公告)日：2021-03-30

申请号：US16367913

申请日：2019-03-28

Applicant: Industrial Technology Research Institute

Inventor： Chang-Min Lin ,  Wei-Chieh Chang ,  Hsuan-Yu Huang

IPC: B67B3/20

Abstract: A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.