Patent ID: 7703192

Claim:
A method for producing a wave-type winding pattern made of a series of fillets and head portions for an electrical element of an electrical machine from coil windings of a group of n wires, wherein two associated fillets of a wire are joined by a respective gable-shaped head portion, the method for producing the wave-type winding pattern comprising the steps of: holding the group of n wires with a predetermined intermediate spacing with a wire guide, winding the group of n wires onto a flat former rotating about a longitudinal axis thereof, repeating work steps of a) laying onto the former, during a half rotation thereof, one fillet and a wire length of one head portion from each of the n wires, and b) pausing of the rotation of the former, and displacing the former along the longitudinal axis thereof so that the fillets laid on the former in the laying step, while maintaining the intermediate spacing thereof and together with an adjoining first end of a respective associated head portion are displaced relative to the wire guide and a second end of the respective associated head portions by n times the predetermined intermediate spacing, laying, after multiple repetitions of the laying work step and the pausing and displacing work steps, a final fillet for each n wire on the former whereby the coil windings are completed, removing the coil windings from the former, and pressing the coil windings flat, so that the coil windings form a pattern of n wave windings with interlaced head portions.