| 摘要 |
PURPOSE:To prevent lead wires from being shorted even if bare sections are generated on the lead wire sections, by forming lead wire guide sections positioned between adjacent connecting pieces, so that level difference between the connecting piece sides on one side side the connecting piece sides on the other side are provided. CONSTITUTION:A cylindrical flush surface is formed with the side surface periphery of a main unit 1 and commutator segments 2, and on lead wire guide section 4 between adjacent connecting pieces 3, the surfaces on one side are chipped to set the guide surfaces L of low levels and the non-chipped surface on the other side are set to be the guide surfaces H of high levels. As a result, level differences between the left side sections and the right side sections of small loops 10a wound on the connecting pieces 3 are arranged on the side periphral surface of the main unit 1, and even if the adjacent small loops 10a are put together, they are kept separated from each other, and even if they are made bare due to covering damage, they will not electrically connected to each other.
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