Patent ID: 8225491

Claim:
A coil manufacturing method for manufacturing a wave wound coil in a substantially cylindrical shape by shaping a linear conductor with a cross-sectional shape having directionality, the method comprising: transferring a wave conductor that is a linear conductor shaped in a substantially rectangular waveform, and has a plurality of straight side portions extending in a wave width direction, one-side connecting portions sequentially connecting every other pair of adjacent side portions at ends on a one wave width direction side, and other-side connecting portions sequentially connecting pairs of adjacent side portions that are not connected by the one-side connecting portions at ends on an other wave width direction side; bending, as first bending and second bending, the one-side connection portions and the other-side connecting portions so that the plurality of side portions are arranged along a coil circumferential direction and directions of cross-sectional shapes of the side portions are in a constant direction with respect to a coil radial direction, wherein the one-side connection portions are bent in the first bending and the other-side connection portions are bent in the second bending; and winding on a bobbin the wave conductor that is bent in the first bending and the second bending.