| 摘要 |
<p>The present invention provides a process for the preparation of coil for an electric appliance by which a coil for electric appliances comprising an edgewise wound square coil having small intervals between coils and high quality can be easily prepared with good productivity and at low cost. The coil for an electric appliance comprises an edgewise wound square coil 11 which is prepared by processing mechanically an electrically conductive flat plate to form plural strip-shaped coil fragments 1A to 1E, butting ends of the coil fragments 1A to 1E each other and welding the ends by beam welding to form plural one-turn square coils, each of the one-turn square coils having a ring-shape provided with a beginning end 2A and a terminal end 2B divided by a notch 3 whose location is different from one another in the one-turn square coils, and superposing the one-turn square coils on one another with shifting the locations of the notches 3 little by little in order so that the terminal and beginning ends of the one-turn square coils adjacent to each other are contact with each other, and welding the terminal and beginning ends in the notch 3, whereby the one-turn square coils are spirally combined.
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