| 摘要 |
PURPOSE: A gap covering apparatus is provided to cover a gap between a movable body and a fixed body by installing a magnet on which iron powder is attached to the fixed body. CONSTITUTION: A gap covering apparatus comprises a movable body(10), a fixed body(20), a magnet(40), and iron powder(50). The movable body has metalicity. The magnet is installed in one side of the fixed body. The iron powder is attached to the magnet by magnetic force. When the movable body is close to the fixed body, the iron powder is arranged in a heading direction of a magnetic force line to cover a gap between the movable body and the fixed body. |
