| 摘要 |
PURPOSE:To earth an apparatus surely by positioning the leg of an earth terminal board within the space of a core and a yoke so that said leg may pressure- welded to said yoke. CONSTITUTION:Both ends of a core 1 are fitted to a yoke 3 of laminated steel plate. A part of one end of said core 1 to be fitted to said yoke is equipped with a notch 1a and a space 5 is provided between the core 1 and the yoke 3. A bulge 4a is formed in the leg 4b of an earth terminal board 4 and said bulge 4a is in the space 5 of the core 1 and the yoke 3 and pressure-welded to said yoke 3. Thus, when the core 1 and the yoke 3 are fitted together, the earth terminal board 4 can also be fixed at the same time. Therefore, a fixing work of said earth terminal board 4 can be conducted easily and this apparatus can be earthed surely, because the earth ter minal board 4 pressure-welded to the yoke 3 firmly.
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