| 摘要 |
PURPOSE:To perform attaching/detaching to/from an attracting face easily and safely by supporting each permanent magnet, provided at an attracting body, rotatably between a position where on pole face of the permanent magnet is opposed with a gap to the attracted face and position where the pole face is placed laterally to the attracted face. CONSTITUTION:Three rectangular parallelepipedous permanent magnets forming one set are lined up in the state of N, S poles being mutually opposed. These magnets are covered with a case member 11 formed of a magnetic body and fixed at the case member 11 by fixing members 12 formed of non-magnetic bodies. A shaft 13 is welded to the rear face of the case member 11, and this shaft 13 is rotatably supported at a bracket 14 fixed at a travelling attracting body. In two sets of such magnet assembled bodies, levers 21, 22 are rigidly secured at one ends of the respective shafts 13, 19, and both levers 21, 22 are connected to each other by a link rod 23. The respective shafts 13, 19 can be rotated in the opposite directions to each other by turning a hand-operated lever 26 fixed at the other end of the shaft 19. |
