Method of winding double-layer motor coils

Details Method of winding double-layer motor coils Method of winding double-layer motor coils

1985-10-10

1987-01-13

Combs, E. Michael

Metal deforming

Coiling by work-guide member orbiting about longitudinal...

29605, 72148, 72371, 140 922, 242 703, 242 711, B21D 1100, B21C 4710, H01F 706, H01F 1104

Patent

active

046354573

ABSTRACT:
A double-layer coil for an electric motor is formed of a single continuous conductor with the two layers being wound simultaneously. A first length of conductor is wound about a pulley to form a coil and at the end of that coil but without breaking the conductor another coil is commenced to be wound about a rotating bobbin, with the coil of the first length wound on the pulley being caused to orbit the bobbin at a rate twice the bobbin rotation speed, whereby the conductor coil is unwound from the pulley and rewound on the bobbin at and the same time a further conductor is being wound about the bobbin to form a second coil, thereby forming both layers of the coil simultaneously.

REFERENCES:
patent: 2595332 (1952-05-01), Chapman et al.
patent: 3801029 (1974-04-01), Malburg
patent: 4449291 (1984-05-01), Rothman

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