| 摘要 |
The invention relates to a magnetic positioning device (1) comprising a frame (2) formed by a plate-like frame plane (2, 2a) and a skirt (2, 2b) fixed under the frame plane and surrounding the frame plane, a magnet support (3) arranged below the frame, and one or more permanent magnets (4) fixed to the support. The magnet and its support are located below the frame plane, one or more joining members (5) pass through the permanent magnet, the permanent magnet support and the plate-like frame plane, each joining member comprising a rod portion (6), to the lower portion (6b) of which a stopper (11) of the vertical magnet movement has been fixed, and the upper portion (6a) of the rod portion located above the frame plane is provided with a progressively operating spring (7). |
