| 摘要 |
PURPOSE:To prevent the displacement of a fusion member from occurring at the center portion of a linear coil section by winding and forming part of the coil section with the fusion member in a gap made by a metal mold and pressing both ends of the linear coil section wound and formed on a protruded plate material. CONSTITUTION:A fused copper wire 15 is wound on a saddle type metal mold 12 formed with a projected winding metal 10 and a recessed winding metal 11 to form a portion 16a of a horn-shaped coil 16A. Under this condition, a plate material 14 is protruded into a gap 12 by a hydraulic cylinder 13, winding is continued to form both ends 16b of the coil 16A, and front end and rear end coil sections 16C, 16B ere integrally formed in a nearly semicircular shape. Next, e current is fed to the winding 15 to melt a fusion layer, and both ends 16b are pressed toward the plate material 14 to mold a saddle type deflecting coil 16. Since this plate material 14 is used, the displacement of the fusion member at the center portion 16a of the linear coil section is prevented from occurring, and the saddle type deflecting coil with no dispersion of the magnetic field can be manufactured.
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