Electromagnetic coil and manufacturing apparatus for the same

Details Electromagnetic coil and manufacturing apparatus for the same Electromagnetic coil and manufacturing apparatus for the same

1997-10-02

1999-10-05

Gellner, Michael L.

Inductor devices

With supporting and/or spacing means between coil and core

Preformed insulation between coil and core

336208, 336192, H01F 2729, H01F 2730

Patent

active

059631180

ABSTRACT:
A traverse shaft section 609 shifts in response to the rotation of a bobbin rotating section 604 with a predetermined winding pitch P1 equivalent to two to 10 times the diameter of a wire rod 520. With this shift movement of traverse shift section 609, wire rod 520 extracted from a winding nozzle section 610 shifting together with traverse shaft section 609 is wound spirally along a slant surface 530 formed by a first winding section 541 at the winding pitch P1 equivalent to two to 10 times the diameter of a wire rod 520. 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.

REFERENCES:
patent: 3215965 (1965-11-01), Subik
patent: 3368177 (1968-02-01), Hilgers
patent: 3851830 (1974-12-01), Barthalon
patent: 5209414 (1993-05-01), Clemens et al.

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