| 摘要 |
<p>PURPOSE:To eliminate the slip and the levitation of an iron core and lessen the noise due to oscillation by a method wherein a center leg core and a side leg core loaded to coil bobbins are held by press-fitting with projections respectively. CONSTITUTION:When the hollow part 7 of the coil bobbin 1 of the primary coil 25 is fitted to that of the coil bobbin 2 of the secondary coil 26 from both end sides of the center leg core 6, the core 6 is loaded through the bobbins 1 and 2. Since projections are formed in the hollow parts of these bobbins 1 and 2 so as to project inward from the inner end side to the outer end side, the core 6 can be easily inserted to the hollow part 7, and then loaded by press-contact in the direction of lamination according as the core is inserted. Next, when the side leg core 18 is fitted from both sides of the bobbins 1 and 2, the core 6 is put in press-contact in the direction of lamination while being guided by the press- contact plane of the projection of a projection piece 9.</p> |
