| 摘要 |
<p>A single locking device (1) that is an example of a locking device to which the present invention is applied is provided with: a locking part (2); a permanent magnet (3) and a permanent magnet (4) which are attached to the locking part (2); an electromagnet (5) and an electromagnet (6); and a locking-part securing port (7). The locking part (2) is a nonmagnetic metal member attached to a door or a wall, and one end (9) thereof is fitted to the locking-part securing port (7) to restrict the opening and closing of a door (10). The permanent magnet (3) is attached near the one end (9) of the locking part (2), and the permanent magnet (4) is attached to the other end.</p> |
