公开(公告)号：EP4074460A1

公开(公告)日：2022-10-19

申请号：EP22167012.8

申请日：2022-04-06

申请人： Stanley Fastening Systems L.P.

发明人： MOLOZNIK, Luke

IPC分类号： B25C1/06

摘要： A fastener device (100) includes a multistage solenoid (102), a magnetic driver (116), and a controller (120). The magnetic driver (116) is configured to travel through the multistage solenoid (102). Each stage (106, 108) of the multistage solenoid (102) is configured to be selectively energized to generate a first electromagnetic field and a second electromagnetic field, the second electromagnetic field having a polarity different from the first electromagnetic field. Each stage (106, 108) is also configured to be selectively de-energized. The controller (120) is configured to adjust an amount of force the multistage solenoid (102) imparts on the magnetic driver (116) while the magnetic driver (116) travels between the a stage (106) and a second stage (108) of the multistage solenoid (102), by combining a magnetic field of the magnetic driver (116) with at least a portion of a first electromagnetic field of the first stage (106) and at least a portion of a second electromagnetic field of the second stage (108).