| 摘要 |
PURPOSE:To demagnetize a magnetized sharing edge. CONSTITUTION:A carriage frame 4 having a U-shaped vertical cross section moves back and forth in a sheet-width direction, and in the advancing state, upper and lower arm parts 4a, 4b of the carriage frame 4 are made to be opposed vertically with a pass line as between. A shear 6 and electrodes 7 are provided respectively on the arm parts 4a, 4b of the carriage frame 4. When the carriage frame 4 moves back and forth, demagnetizers 13 are arranged respectively at a position capable of being close to the upper edge 6a and the lower edge 6b in the course of movement, and the frame 4 is supported by a frame different from the carriage frame 4. |
