Solenoid operated device and opening and closing device using the apparatus

Comprising: solenoid operated means (8) of the movable member (12); a drive coil (on-off coil) (10), the magnetic flux generated by the energization to provide a driving force to the movable member (12); a permanent magnet (14), the movable member (12) holding the stator (11) of the movable member (12); and the holding force adjusting means (15), the movable member may be adjusted based on a permanent magnet (14) (12) holding force, holding force adjusting means (15) removably disposed in the coil does not become the driving (on-off coil) portion of the main magnetic circuit of the magnetic flux due to (10).