| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electromagnetic coil which improves the insulation quality and production efficiency, and reduces the electromagnetic coil in size. <P>SOLUTION: A traverse shaft section 609 shifts in response to the rotation of a bobbin rotating section 604 at a predetermined winding pitch P1, for example, equivalent to two to ten times of the diameter of a wire rod 520. With this shift movement of the traverse shaft section 609, the wire rod 520 extracted from a winding nozzle section 610 shifting together with the traverse shaft section 609 is wound spirally along a slant surface 530 formed by a primary winding section 541 at the winding pitch P1 equivalent to two to ten times of the diameter of the wire rod. As a result, an advancing-side wire rod 520a and a reversing-side wire rod 520b cross over each other at opposing inclinations. Hence, it becomes possible to prevent the reversing-side wire rod 520b, when wound on the advancing-side wire rod 520a, from pulling and dislocating the advancing-side wire rod 520a from its regular winding position, thereby eliminating undesirable winding collapse. <P>COPYRIGHT: (C)2007,JPO&INPIT |
