| 摘要 |
A magnetic gripper provides a support for releasable attachment to a ferromagnetic surface. A magnet adheres the gripper to the ferromagnetic surface. A frame is rotatably attached to the magnet where the frame defines cam surfaces to raise and lower the magnet from the ferromagnetic surface. An ear extends from the magnet to engage the ferromagnetic surface at a location spaced from the cam surfaces so that an end of the magnet near the ear can be first disengaged from the ferromagnetic surface, causing an air gap between the magnet and the ferromagnetic surface. The remainder of the magnet is sequentially disengaged from the surface as the cam surface is rotated. A foot support may be rotatably mounted to the frame so that a user can stand on the gripper to perform maintenance and repairs on the structure defined by the ferromagnetic surface.
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